2016年2月16日星期二
Welding connection valves
Welding connection valves are suitable for all kinds of pressure and temperature, under the condition of the load moment when using, more applicable than the flange connection.But welding connection valve disassembly and difficult to install, so its use is limited to can normally run for a long time, or use the conditions of Dutch engraved, high temperature occasion.Such as coal-fired power stations, nuclear power engineering, ethylene project on the pipeline.Under 50 mm nominal diameter welding valve usually with welding socket to carry on the charge of the pipeline on plane.Because the socket welding forming gap between the pin and pipeline, thus has the potential to crack corrosion by some media, at the same time, the vibration of the pipeline can make the connection part fatigue, so the application of the socket welding by certain restrictions.Lotus engraved in nominal diameter is bigger, use condition, higher temperature, the body is often used for welding groove, at the same time, the butt joint with the original requirements, the welders must choose very skillful to complete the job.
2016年1月26日星期二
Post office lost fire hydrant hose coupling, baicheng fire control shall be ordered to make correction
In order to further strengthen the fire safety work in crowded places, vigorously regulation of various types of fire hazards, reduce fire hazards, keep steady fire situation.On April 23, baicheng city of jilin province public security fire control team tongyu brigade of jurisdiction the postal system for fire control safety inspection.
In the process of inspection, the fire prevention supervision personnel to the inspection unit of evacuation exit signs, directional signs, emergency lighting setting is in accordance with the provisions, the evacuation passageway and safety exit was clear, fire hydrant, fire extinguishers, fire doors, fire control facilities is normal working status, fire safety management system is sound and emergency disposal plan is formulated, and organize regular fire drill, and so on and so forth has carried on the detailed screening.
Inspection found that the unit on a wall inside the fire hydrant fire hose is missing, is used to pump water, and will fire hose coupling to unload.Fire prevention supervision personnel shall be ordered to correct immediately, and the units of the legal persons, the fire managers criticism education, also requires the unit leaders to strengthen fire safety work seriously, to improve the level of employee "four abilities".
After the inspection, fire prevention supervisors to go further by calling for a unit manager should be self-checking introspection, firmly to prevent fire accidents.Through this inspection, not only the timely and effective to curb some of the fire hazard, as well as jurisdiction fire security work has laid a solid foundation, further purify the area of fire safety environment.
In the process of inspection, the fire prevention supervision personnel to the inspection unit of evacuation exit signs, directional signs, emergency lighting setting is in accordance with the provisions, the evacuation passageway and safety exit was clear, fire hydrant, fire extinguishers, fire doors, fire control facilities is normal working status, fire safety management system is sound and emergency disposal plan is formulated, and organize regular fire drill, and so on and so forth has carried on the detailed screening.
Inspection found that the unit on a wall inside the fire hydrant fire hose is missing, is used to pump water, and will fire hose coupling to unload.Fire prevention supervision personnel shall be ordered to correct immediately, and the units of the legal persons, the fire managers criticism education, also requires the unit leaders to strengthen fire safety work seriously, to improve the level of employee "four abilities".
After the inspection, fire prevention supervisors to go further by calling for a unit manager should be self-checking introspection, firmly to prevent fire accidents.Through this inspection, not only the timely and effective to curb some of the fire hazard, as well as jurisdiction fire security work has laid a solid foundation, further purify the area of fire safety environment.
2016年1月19日星期二
Methods the choose and buy about bibcock
See appearance: good bibcock surface chromium plating process is very exquisite, is generally after several working procedure to complete.Distinguish good or bad depends on the extent of light, the surface is smooth and the brighter the representative quality better.
Smell: this is the consumer more easily overlooked steps, is should to smell identification of faucet pipe, avoid the choose and buy has a pungent smell of the faucet.
Line guarantee: country has guide tube for the quality of faucet, consumers during the purchase, should be to guide personnel for the specification of product data, inspection report, pay attention to whether or not data in accordance with the requirements of the general administration of quality supervision, inspection.In addition if the tap water remained at about 8.3 litres/minute, is to achieve the best water-saving effect, consumers may consult the seller product details.
Turn handle: good bibcock is in turn the handle, without too much space between the taps and switch, and open easily, don't skid.<
Smell: this is the consumer more easily overlooked steps, is should to smell identification of faucet pipe, avoid the choose and buy has a pungent smell of the faucet.
Line guarantee: country has guide tube for the quality of faucet, consumers during the purchase, should be to guide personnel for the specification of product data, inspection report, pay attention to whether or not data in accordance with the requirements of the general administration of quality supervision, inspection.In addition if the tap water remained at about 8.3 litres/minute, is to achieve the best water-saving effect, consumers may consult the seller product details.
Turn handle: good bibcock is in turn the handle, without too much space between the taps and switch, and open easily, don't skid.<
2016年1月11日星期一
Select of camlock coupling
1, according to the nature of the fluid, temperature (please select suitable type, material and temperature of the ontology of fluid sealing material of camlock coupling) choice, according to the fluid, suitable for the body material, sealing material is different.Quick connector, for example, is the air.Recommend made of steel, is water, choose brass or stainless steel.
2, the pressure of the liquid (please select is suitable for the compression performance of quick connector) fluid pressure, fluid pressure was the key to select quick joint.Hydraulic with quick connector is 5.0 Mpa (51 KGF/cm&sup 2)68.6 Mpa (700 KGF/cm&sup 2)Series, formed between corresponding to withstand voltage characteristics of the structure of the quick connector is also different.
3, the structure of the automatic switch valve valve structure (please select suitable for piping purpose of quick connector), for the structure of the valve, there are two way switch, single switch and two way open.Except for the two way switch type when the separation, the fluid flowed from with tube.So please note.
4, fast connection using the environment (please select suitable for using the environment structure and material of quick connector), combining the status of using the environment humidity conditions, dust, and easy to use environment such as corrosion, to consider the selected quick connector type, body material, sealing material.
5, confirm choose quick joint connecting thread should agree, in the process of have the use of different brand products, the best is the same brand of Yin and Yang head, if you have to use a cross consulting product before it is best to use the supplier's technical personnel, confirm good again after use.
6, the shape, size, installation (please in determining the final shape, size and order products), please make sure quick joint type and material, and specify the corresponding to characteristics of piping assembly shape and size.Please note that the size is related to fluid flow.
(source:http://www.kg-machinery.com/news/select-of-camlock-coupling.html)
2, the pressure of the liquid (please select is suitable for the compression performance of quick connector) fluid pressure, fluid pressure was the key to select quick joint.Hydraulic with quick connector is 5.0 Mpa (51 KGF/cm&sup 2)68.6 Mpa (700 KGF/cm&sup 2)Series, formed between corresponding to withstand voltage characteristics of the structure of the quick connector is also different.
3, the structure of the automatic switch valve valve structure (please select suitable for piping purpose of quick connector), for the structure of the valve, there are two way switch, single switch and two way open.Except for the two way switch type when the separation, the fluid flowed from with tube.So please note.
4, fast connection using the environment (please select suitable for using the environment structure and material of quick connector), combining the status of using the environment humidity conditions, dust, and easy to use environment such as corrosion, to consider the selected quick connector type, body material, sealing material.
5, confirm choose quick joint connecting thread should agree, in the process of have the use of different brand products, the best is the same brand of Yin and Yang head, if you have to use a cross consulting product before it is best to use the supplier's technical personnel, confirm good again after use.
6, the shape, size, installation (please in determining the final shape, size and order products), please make sure quick joint type and material, and specify the corresponding to characteristics of piping assembly shape and size.Please note that the size is related to fluid flow.
(source:http://www.kg-machinery.com/news/select-of-camlock-coupling.html)
2016年1月7日星期四
Hydraulic camlock coupling
Hydraulic camlock coupling is a kind of don't need to use tools, and can realize piping installation joint quickly, he has both ends closed and open at both ends open two structures.
Both ends onoff camlock coupling joint by joint, one-way valve core, coat, steel balls, spring and sealing, etc.The inner cavity of a joint body has a one-way valve, when two separate from the joint body, one-way valve core in the respective reaches under the action of the spring, and the top pressure cone hole on the connector body, to close the channel, both sides inside the pipe of oil sealed can't flow in the tube;When two joint connecting check valve into two plunger, the front end of valve core, forcing cone hole, the left joint body of valve core make the oil inside the tubes on either side are interlinked, two joint with steel ball lock body, work, coat under the effect of spring pressed steel ball in the u-shaped groove joint body, make the joint connection.
Disassemble the joint, but the structure is relatively complex, local resistance loss is bigger, is suitable for oil and gas pipeline system for medium.
Open camlock coupling on both ends, with both ends onoff the difference only lies in the joint cavity in the body without check valve, when the two connector body separate, not closed.One end of the joint is composed of three disc type hose connector connected to the hose, hose connector joint core directly into the camlock coupling.
Both ends onoff camlock coupling joint by joint, one-way valve core, coat, steel balls, spring and sealing, etc.The inner cavity of a joint body has a one-way valve, when two separate from the joint body, one-way valve core in the respective reaches under the action of the spring, and the top pressure cone hole on the connector body, to close the channel, both sides inside the pipe of oil sealed can't flow in the tube;When two joint connecting check valve into two plunger, the front end of valve core, forcing cone hole, the left joint body of valve core make the oil inside the tubes on either side are interlinked, two joint with steel ball lock body, work, coat under the effect of spring pressed steel ball in the u-shaped groove joint body, make the joint connection.
Disassemble the joint, but the structure is relatively complex, local resistance loss is bigger, is suitable for oil and gas pipeline system for medium.
Open camlock coupling on both ends, with both ends onoff the difference only lies in the joint cavity in the body without check valve, when the two connector body separate, not closed.One end of the joint is composed of three disc type hose connector connected to the hose, hose connector joint core directly into the camlock coupling.
2015年12月30日星期三
Village roads damaged valve to gas leakage
Yesterday morning at 9 o 'clock, daxing district zaoyuan village residents and the surrounding neighborhoods has experienced a false alarm.Originally, is gas leakage happened in the construction site near the village square, some residents were evacuated, emergency closed around the elementary school, thankfully, the scene quickly under control and processing.
Jujube jujube village is located in the subway line 4 station northwest edge.Journalists arrived, squares and fitness between garden has pulled the cordon, the ground has a diameter of about one or two meters of the holes, the workers and the excavator is working.
The reporter understands, around eight o 'clock yesterday morning, residents near the pit smelled a smell of abnormal, before here is building a road, convenient zaoyuan primary school students and parents from the north side of pass in and out.So some suspect, may be road construction in buried gas pipeline leak.
News is reflected in the residents' committees, the staff quickly get in touch with gas, construction.Then, property management, police, fire, gas sector have arrived at the scene, the firemen hose ready for a rainy day.Considering the safety of nearby residents, residents' committees sent notice the holes around a few hundreds of residents in the building, will they evacuated.Zaoyuan primary school also temporary decided to listening to lectures, notify the parents to children away.
Fortunately, not as bad as fuel gas, property management department closed gate, smell fades.At noon, the residents have returned home.According to the staff of the residents' committees, the cause of the accident is the construction personnel touch is broken when working in a gas valve, lead to gas leakage fault has repair, then backfill earthwork, is expected soon to restore gas supply.
Jujube jujube village is located in the subway line 4 station northwest edge.Journalists arrived, squares and fitness between garden has pulled the cordon, the ground has a diameter of about one or two meters of the holes, the workers and the excavator is working.
The reporter understands, around eight o 'clock yesterday morning, residents near the pit smelled a smell of abnormal, before here is building a road, convenient zaoyuan primary school students and parents from the north side of pass in and out.So some suspect, may be road construction in buried gas pipeline leak.
News is reflected in the residents' committees, the staff quickly get in touch with gas, construction.Then, property management, police, fire, gas sector have arrived at the scene, the firemen hose ready for a rainy day.Considering the safety of nearby residents, residents' committees sent notice the holes around a few hundreds of residents in the building, will they evacuated.Zaoyuan primary school also temporary decided to listening to lectures, notify the parents to children away.
Fortunately, not as bad as fuel gas, property management department closed gate, smell fades.At noon, the residents have returned home.According to the staff of the residents' committees, the cause of the accident is the construction personnel touch is broken when working in a gas valve, lead to gas leakage fault has repair, then backfill earthwork, is expected soon to restore gas supply.
2015年12月22日星期二
Bibcock quality worrying
On April 20, xian city pledges inspect bureau to 20 batches bibcock product sampling, 4 batches were unqualified products, mainly for the pipe thread precision inflow parts strength performance is not up to standard.Pipe thread precision unqualified causes bibcock with water supply pipe connection is not tight or unable to connect, cause leakage or not normal use;Water parts strength unqualified cause LouDi water, or even shell burst.
Since 2015, sampling, bibcock by repeated exposure.Released on March 30th, the guangzhou city administration for industry and commerce of the "guangzhou city industrial and commercial bureau 2014 circulation bibcock commodity consumption hints ", a total of 35 samples, there are 15 samples were judged to be unqualified, the main problem for the salt spray test project unqualified project is unqualified, sample flow and body strength and sealing performance is unqualified project.
On February 9, in jiangxi province pledges inspect bureau released the 2014 and 4 quarter of product quality supervision and spot checks at the provincial level.Selectived examination of 20 batches ceramic chip seal the lid, there are 7 batches unqualified product quality.The main problem is the acidic salt fog test, body strength indicators do not meet the requirement.
The new national standard GB 18145-18145 the ceramic chip seal the lid were published on May 6, 2014, on December 1, 2014 formally implemented.The new national standard has been almost five months, why haven't improve stopcock quality problem?The personage inside course of study thinks, some low price is no guarantee the stopcock products still have the market, irresponsible enterprises with substandard materials, lead to tap the market is still jumbly.
Since 2015, sampling, bibcock by repeated exposure.Released on March 30th, the guangzhou city administration for industry and commerce of the "guangzhou city industrial and commercial bureau 2014 circulation bibcock commodity consumption hints ", a total of 35 samples, there are 15 samples were judged to be unqualified, the main problem for the salt spray test project unqualified project is unqualified, sample flow and body strength and sealing performance is unqualified project.
On February 9, in jiangxi province pledges inspect bureau released the 2014 and 4 quarter of product quality supervision and spot checks at the provincial level.Selectived examination of 20 batches ceramic chip seal the lid, there are 7 batches unqualified product quality.The main problem is the acidic salt fog test, body strength indicators do not meet the requirement.
The new national standard GB 18145-18145 the ceramic chip seal the lid were published on May 6, 2014, on December 1, 2014 formally implemented.The new national standard has been almost five months, why haven't improve stopcock quality problem?The personage inside course of study thinks, some low price is no guarantee the stopcock products still have the market, irresponsible enterprises with substandard materials, lead to tap the market is still jumbly.
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