CN88202977U - Tester for positive and negative pressure of respiratory valve - Google Patents
Tester for positive and negative pressure of respiratory valve Download PDFInfo
- Publication number
- CN88202977U CN88202977U CN 88202977 CN88202977U CN88202977U CN 88202977 U CN88202977 U CN 88202977U CN 88202977 CN88202977 CN 88202977 CN 88202977 U CN88202977 U CN 88202977U CN 88202977 U CN88202977 U CN 88202977U
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- valve
- air
- air tank
- negative pressure
- positive
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Abstract
The utility model relates to a tester for positive and negative pressure of breather valve, comprising an air compressor, an electric motor, an air accumulating tube, a pipe line, a valve, a pressure gauge and a vacuum gauge. The utility model uses the principle that an air inlet of the compressor is capable of pumping negative pressure and an air outlet is capable of compressing air to test the positive and negative pressure of the breather valve. The utility model has the advantages of simple structure, convenient operation and accurate testing. The tester for positive and negative pressure of respiratory valve is especially applied to test the positive and negative pressure of a breather valve of a metallic oil tank in petroleum depot. So the utility model ensures that the breather valve works normally, oil volatilizing waste is reduced, and the safety of an oil tank is ensured.
Description
The utility model relates to the positive negative pressure tester of a kind of vacuum pressure valve, is specially adapted to the positive/negative pressure of testing stone oil depot metal Tank's Breather Valve.
At present, extensively the device of the test Tank's Breather Valve positive/negative pressure that adopts is the proving installation that utilizes U type glass-tube manometer, sebific duct, threeway gas blow pipe etc. to form, and it utilizes chews the positive/negative pressure that blowing suction is tested vacuum pressure valve.The device of the artificial pressure-vaccum method test of this utilization vacuum pressure valve positive/negative pressure has following weak point: the first, and this method can only be tested the less Weighing type vacuum pressure valve of positive/negative pressure, and can not test the higher spring vacuum pressure valve of pressure.The second, it is discontinuous to the test of vacuum pressure valve, can't test under the vacuum pressure valve duty, makes troubles to test job.The 3rd, artificial pressure-vaccum is extremely incompatible to testing vacuum pressure valve in large quantities.
The purpose of this utility model is to overcome weak point of the prior art and the device that proposes a kind of mechanical type test vacuum pressure valve positive/negative pressure.
The utility model is achieved in that it is made up of air compressor, motor, air tank, pipeline, valve, tensimeter and vacuum meter.
In the admission line of air compressor, there is a gas admittance valve that it is communicated with atmosphere, other has an operation valve that it is connected with air tank, in the exhaust line of air compressor, there is a vent valve that it is communicated with atmosphere, other has an operation valve that it is communicated with air tank, and tensimeter and vacuum meter are contained on the air tank by operation valve, and air tank links by ring flange above the operation valve and tested vacuum pressure valve.
The utility model is to utilize the air intake opening of air compressor can take out positive/negative pressure that negative pressure, gas outlet can compressed-air actuated principle test vacuum pressure valve, both the generation of positive negative pressure was that four valves on the operation porting are realized by after starting the compressor motion.The malleation of tested vacuum pressure valve is shown by the tensimeter on the air tank.Negative pressure is shown by vacuum meter.
The utility model is described in further detail below in conjunction with accompanying drawing:
Fig. 1 is structural representation of the present utility model (front view)
Fig. 2 is the vertical view of Fig. 1
In Fig. 1,2, air tank 8 is former and later two (also can be one), and its physical dimension is φ 89 * 1100mm, and two air tanks are connected by pipe.A side is equipped with air compressor 16 above two air tanks, and opposite side is equipped with motor 7, and two valves are housed in air compressor admission line 12, and one is gas admittance valve 11, communicates with atmosphere by it.Another is air inlet and back air tank attachment valve 15.Two valves also are housed in the exhaust line 13 of air compressor, and one is vent valve 11, communicates with atmosphere by it, and another is exhaust and back air tank attachment valve 17.Tensimeter 2 is communicated with preceding air tank by operation valve 18.Vacuum meter 3 is communicated with the back air tank by operation valve 19.Above an end of two air tanks, be linked together (on two air tanks can with two vacuum pressure valves of fashionable dress) by ring flange above the operation valve 5 and vacuum pressure valve to be measured 4.Four wheels 6 is housed below air tank.
Other label is among the figure: 9 are driving triangular belt, and 10 is air-compressor pulley, and 14 is safety valve.
The test behaviour of vacuum pressure valve positive pressure does as follows:
Tested vacuum pressure valve 4 is installed on the ring flange of operation valve 5 tops.
Open compressor gas admittance valve 11, close the attachment valve 15 of admission line 12 and air tank, the vent valve 1 of close compressor is opened the attachment valve 17 of exhaust line 13 and air tank, opens tensimeter operation valve 18, closes vacuum meter operation valve 19, opens operation valve 5.Starter motor makes compressor operating then, current path is: air enters compressor by gas admittance valve 11, by compressor outlet air tank after operation valve 17 enters, if vacuum pressure valve is working properly, (the 4000mm water column, promptly pressure was 0.4kg/cm after tensimeter was indicated to ratings
2), vacuum pressure valve outwards exhaust automatically.
Vacuum pressure valve negative pressure test operating procedure is as follows:
Open the vent valve 1 of compressor, close the operation valve 17 that exhaust line connects with air tank, close compressor gas admittance valve 11, open the attachment valve 15 of admission line and air tank, open vacuum control valve 19, closing presure table operation valve 18 fixes tested vacuum pressure valve 4, opening controlling valve 5, starter motor makes compressor operating then.Its current path is: the air in the air tank enters compressor through operation valve 15, enters atmosphere by compressor outlet through vent valve 1.If the vacuum pressure valve suction valve chip is working properly, the vacuum meter pointer can be air-breathing automatically behind rating number.
The utility model has the advantages that simple in structurely, easy to operate, test accurately can be carried out follow-on test under the breather valve duty, and be convenient to detect a large amount of breather valves, thereby make breather valve be in normal operation, reduce the oil product volatilizing loss, guarantee oil tank safety.
Claims (3)
1, a kind of vacuum pressure valve positive/negative pressure tester, it is characterized in that it is by air compressor, motor, air tank, pipeline, valve, tensimeter and vacuum meter are formed, in the admission line of air compressor, there is a gas admittance valve that it is communicated with atmosphere, other has an operation valve that it is connected with air tank, in the exhaust line of air compressor, there is a vent valve that it is communicated with atmosphere, other has an operation valve that it is communicated with air tank, tensimeter and vacuum meter are contained on the air tank by operation valve, and air tank links by ring flange above the operation valve and tested vacuum pressure valve.
2, tester according to claim 1, it is characterized in that air tank is former and later two, two air tanks link by pipe, side dress air compressor above two air tanks, opposite side dress motor, it is gas admittance valve 11 that two valves in admission line are one, another is air inlet and back air tank attachment valve 15, it is vent valve 1 that two valves in exhaust line are one, another is exhaust and back air tank attachment valve 17, tensimeter 2 is communicated with preceding air tank by operation valve 18, and vacuum meter 3 is communicated with the back air tank by operation valve 19, is linked together by ring flange above the operation valve 5 and vacuum pressure valve to be measured above an end of two air tanks.
3, tester according to claim 1 and 2 is characterized in that being equipped with four wheels 6 below air tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88202977 CN88202977U (en) | 1988-04-05 | 1988-04-05 | Tester for positive and negative pressure of respiratory valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88202977 CN88202977U (en) | 1988-04-05 | 1988-04-05 | Tester for positive and negative pressure of respiratory valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN88202977U true CN88202977U (en) | 1988-11-30 |
Family
ID=4837891
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 88202977 Withdrawn CN88202977U (en) | 1988-04-05 | 1988-04-05 | Tester for positive and negative pressure of respiratory valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN88202977U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102012302A (en) * | 2010-11-24 | 2011-04-13 | 山东万事达专用汽车制造有限公司 | Comprehensive air pressure test bed for vehicle-mounted steel tank |
| CN102507079A (en) * | 2011-11-19 | 2012-06-20 | 昆明中铁大型养路机械集团有限公司 | Device for measuring the dusty airflow wind pressure |
| CN103808501A (en) * | 2014-01-24 | 2014-05-21 | 广州永粤机电工程有限公司 | On-line calibration device for breather valve |
| CN104006917A (en) * | 2014-06-09 | 2014-08-27 | 江苏省特种设备安全监督检验研究院常州分院 | Automatic checking and testing device for breather valve |
| CN105547666A (en) * | 2015-12-09 | 2016-05-04 | 中国矿业大学 | Manhole cover positive and negative pressure performance test bench and method |
| CN106768596A (en) * | 2017-02-14 | 2017-05-31 | 山东省元丰节能装备科技股份有限公司 | The method of warehouse positive and negative pressure safety monitoring |
-
1988
- 1988-04-05 CN CN 88202977 patent/CN88202977U/en not_active Withdrawn
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102012302A (en) * | 2010-11-24 | 2011-04-13 | 山东万事达专用汽车制造有限公司 | Comprehensive air pressure test bed for vehicle-mounted steel tank |
| CN102507079A (en) * | 2011-11-19 | 2012-06-20 | 昆明中铁大型养路机械集团有限公司 | Device for measuring the dusty airflow wind pressure |
| CN102507079B (en) * | 2011-11-19 | 2014-02-12 | 昆明中铁大型养路机械集团有限公司 | Device for measuring dusty airflow wind pressure |
| CN103808501A (en) * | 2014-01-24 | 2014-05-21 | 广州永粤机电工程有限公司 | On-line calibration device for breather valve |
| CN104006917A (en) * | 2014-06-09 | 2014-08-27 | 江苏省特种设备安全监督检验研究院常州分院 | Automatic checking and testing device for breather valve |
| CN104006917B (en) * | 2014-06-09 | 2016-03-23 | 江苏省特种设备安全监督检验研究院常州分院 | A kind of vacuum pressure valve automatic Verification proving installation |
| CN105547666A (en) * | 2015-12-09 | 2016-05-04 | 中国矿业大学 | Manhole cover positive and negative pressure performance test bench and method |
| CN105547666B (en) * | 2015-12-09 | 2018-02-02 | 中国矿业大学 | Manhole cover positive and negative pressure performance test bench and method |
| CN106768596A (en) * | 2017-02-14 | 2017-05-31 | 山东省元丰节能装备科技股份有限公司 | The method of warehouse positive and negative pressure safety monitoring |
| CN106768596B (en) * | 2017-02-14 | 2019-07-30 | 山东省元丰节能装备科技股份有限公司 | The method of warehouse positive and negative pressure safety monitoring |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |