CN201739564U - Novel leak detection valve - Google Patents
Novel leak detection valve Download PDFInfo
- Publication number
- CN201739564U CN201739564U CN2010202562104U CN201020256210U CN201739564U CN 201739564 U CN201739564 U CN 201739564U CN 2010202562104 U CN2010202562104 U CN 2010202562104U CN 201020256210 U CN201020256210 U CN 201020256210U CN 201739564 U CN201739564 U CN 201739564U
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- tapped hole
- valve body
- spool
- gear
- threaded holes
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- Expired - Lifetime
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Abstract
A novel leak detection valve comprises a valve body and a rotatable valve core, wherein the valve core is mounted in the valve body; threaded holes, exhaust holes and a positioning threaded hole are formed on the valve body; the first threaded hole is connected with an air compressor; the second and the third threaded holes are connected with a standard container and a container to be detected respectively; the fourth and the fifth threaded holes are connected with two ends of a pressure sensor respectively; inner ring grooves are formed at the second and the third threaded holes; a pressurizing gear, a pressure measuring gear, a balancing gear and an exhaust gear are arranged on the valve core; grooves are formed on the top circumferential edge of the valve core in positions axially corresponding to the gears; a pressurizing groove can communicate the inner ends of the first, the second and the third threaded holes; two pressure measuring grooves can respectively communicate the inner ends of the fourth and the fifth threaded holes with the inner ring grooves on the sides corresponding to the fourth and the fifth threaded holes; a balancing groove can communicate inner ends of the fourth and the fifth threaded holes; and two exhaust grooves are matched with two radial holes in the valve core, and can respectively communicate the fourth and the fifth threaded holes with the corresponding exhaust holes.
Description
Technical field
The utility model relates to a kind of gas leakage and detect valve, can measure efficiently and accurately leakage situation.
Background technique
Along with the increase of product complexity and the strict demand that Security is guaranteed, the important effect of play more and more in producing, living of gas leakage detection technique, particularly important on quality that guarantees product and performance especially.In recent years, because the highly effective of leak detection technology, it is widely used and various industries, and is therefore also more and more higher to the requirement of corresponding leakage technology, in the hope of easy, quick, efficient.
At present domestic detection technique mainly is divided into pneumatic-typed detection method, flow type detection method, inert gas detection method, but industrial commonly used be the pneumatic-typed detection method.The pneumatic-typed detection method is divided into direct press type and differential pressure type Leak testtion method, and direct press type detector concept in the market is simple, but precision is relatively low, and is very high to the sensitivity requirement of pressure transducer, thereby cost is not low yet.And generally there is following shortcoming in existing differential pressure type detection device on the market: 1, complex structure, and complex operation needs manually or the switching successively of circuit control valve; 2, need to adopt a plurality of solenoid valves, and the use of a plurality of solenoid valves has caused the increase of error, and the also corresponding raising of cost; 3, sense cycle is longer.
Summary of the invention
For the complex structure, complex operation, the cost height that overcome existing leakage device, shortcoming such as error is big and the cycle is long, the utility model provides a kind of simple in structure, easy to operate, cost is low, error is little novel leak test valve.
The technical solution of the utility model is:
Novel leak test valve, it is characterized in that: comprise valve body and rotatable spool, described spool is installed in the valve body, have tapped hole, exhaust port and positioning spiro pit on the described valve body, described first tapped hole connects air compressor, second and third tapped hole connects volumetric standard and testing container respectively, and fourth, fifth tapped hole is connected respectively to the two ends of pressure transducer, and described valve body has inner groove at second and third tapped hole place; Described spool is provided with pressurization, pressure measurement, balance, exhaust gear, each gear shaft of circumferential upper edge of described spool all has groove to the relevant position, described pressurized tank can be communicated with the inner end of first, second and third tapped hole, described pressure measurement groove is provided with two, can be respectively the inner end of fourth, fifth tapped hole be communicated with the inner groove of its respective side, described compensating groove can be communicated with fourth, fifth tapped hole inner end, described air vent is provided with two, cooperates with two radial holes in the spool can be respectively fourth, fifth tapped hole be communicated with exhaust port accordingly.
Further, the protruding axle of described spool is gone up each gear place and is had the steel ball hole, is provided with spring in the positioning spiro pit of described valve body, and described spring cooperates the corresponding gear of locking with steel ball, and the protruding axle head of described spool is provided with manual Joystick.
Perhaps, the outside of described spool puts corresponding transform interface and links to each other with motor.
Further, described valve body is that the steel material is made.
The utility model is divided into pressurization, measurement, balance, four processes of exhaust.The switching of these four processes can realize that rotary valve can be by manual or motor driving by rotary valve.
The utility model explains with the situation of hand control valve:
Pressure process goes to the pressurization retaining with spool, and pressurized air first tapped hole that air compressor produces enters, and is sent to volumetric standard and tested container by the air flue between pressurized tank and the valve body respectively through second and third tapped hole.After the stable gas pressure of volumetric standard and testing container, whether detect pressure reduction meets the demands, forward spool to the pressure measurement retaining, enter the pressure measurement process, this moment two pressure measurement grooves respectively with fourth, fifth tapped hole with corresponding in the grooved ring conducting, the air flue of the pressurized air in volumetric standard and the tested container by separately is connected to the two ends of pressure transducer and measures.After measuring end, for preventing the damage of pressure transducer, need the pressure of first balance sensor both sides, forward spool to the balance retaining, compensating groove and valve interior wall form air flue and make the 4th tapped hole and the 5th tapped hole conducting, even the air pressure at pressure transducer two ends obtains balance.Behind the air pressure balance, need the pressurized air in the container is discharged by the exhaust port of both sides, spool is got to the exhaust retaining, this moment, fourth, fifth tapped hole formed first air flue with two radial hole conductings of spool respectively, and two air vents form second air flue with valve interior wall respectively, the air-flow at differential pressure pickup two ends is discharged by the endoporus of spool by first air flue, and the air communication in the inner groove is crossed second air flue and discharged by exhaust port.
The beneficial effect of described multidigit rotary valve of the present utility model mainly shows:
1, only needs to use the corner of motor or hand control valve core can finish pressurization, pressure measurement, balance, these four processes of exhaust, reach the purpose of test.
2, the groove on the spool is symmetrical distribution, makes spool and valve body be used two ends equivalence when being connected volumetric standard and tested container, does not influence test result.
3, between valve body and external container, air compressor and the differential pressure pickup with being threaded good airproof performance, joint efficiency height.
4, simple in structure, easy to operate, cost is low, error is little, the cycle is short.
Description of drawings
Fig. 1 is a schematic diagram of the present utility model.
Fig. 2 is the sectional structure chart of the utility model valve body.
Fig. 3 is the sectional structure chart of the utility model spool.
Fig. 4 is the structural representation of the utility model pressure process.
Fig. 5 is the structural representation of the utility model pressure measurement process.
Fig. 6 is the structural representation of the utility model equilibrium process.
Fig. 7 is the structural representation of the utility model exhaust process.
Fig. 8 is motor-driven structural representation for the utility model uses.
Embodiment
Embodiment one
With reference to Fig. 1-3, novel leak test valve, comprise valve body 1 and rotatable spool 2, described spool 2 is installed in the valve body 1, have tapped hole, exhaust port 16 and positioning spiro pit 18 on the described valve body 1, described first tapped hole 11 connects air compressor, second tapped hole 12, the 3rd tapped hole 13 connect volumetric standard and testing container respectively, the 4th tapped hole 14, the 5th tapped hole 15 are connected respectively to the two ends of pressure transducer, and described valve body 1 has inner groove 17 at second tapped hole 12, the 3rd tapped hole 13 places; The protruding axle 26 of described spool 2 is provided with pressurization, pressure measurement, balance, the exhaust gear, each gear shaft of circumferential upper edge of described spool 2 all has groove to the relevant position, described pressurized tank 21 can be with first tapped hole 11, second tapped hole 12, the inner end of the 3rd tapped hole 13 is communicated with, described pressure measurement groove 22 is provided with two, can be respectively with the 4th tapped hole 14, the inner end of the 5th tapped hole 15 is communicated with the inner groove of its respective side 17, described compensating groove 23 can be with the 4th tapped hole 14, the 5th tapped hole 15 inner ends are communicated with, described air vent 24 is provided with two, and cooperating with two radial holes 25 in the spool 2 can be respectively with the 4th tapped hole 14, the 5th tapped hole 15 is communicated with corresponding exhaust port 16.
Each gear place has steel ball hole 28 on the protruding axle 26 of described spool 2, be provided with spring 19 in the positioning spiro pit 18 of described valve body 1, described spring 19 cooperates the corresponding gear of locking with steel ball 29 in the steel ball hole 28, and protruding axle 26 ends of described spool 2 are provided with manual Joystick 27.
Described valve body 1 is that the steel material is made.
The utility model is divided into pressurization, measurement, balance, four processes of exhaust.The switching of these four processes can realize that rotary valve can be by manual or motor driving by rotary valve.
The working procedure of present embodiment:
With reference to Fig. 4-7, pressure process, spool 2 is gone to the pressurization retaining, and pressurized air first tapped hole 11 that air compressor produces enters, and is sent to volumetric standard and tested container by the air flue between pressurized tank 21 and the valve body 1 respectively through second tapped hole 12, the 3rd tapped hole 13.After the stable gas pressure of volumetric standard and testing container, whether detect pressure reduction meets the demands, forward spool 2 to the pressure measurement retaining, enter the pressure measurement process, this moment two pressure measurement grooves 22 respectively with the 4th tapped hole 14, the 5th tapped hole 15 with corresponding in grooved ring 17 conductings, the air flue of the pressurized air in volumetric standard and the tested container by separately is connected to the two ends of pressure transducer and measures.After measuring end, for preventing the damage of pressure transducer, need the pressure of first balance sensor both sides, forward spool 2 to the balance retaining, compensating groove 23 and valve body 1 inwall form air flue and make the 4th tapped hole 14 and 15 conductings of the 5th tapped hole, even the air pressure at pressure transducer two ends obtains balance.Behind the air pressure balance, need the pressurized air in the container is discharged by the exhaust port 16 of both sides, spool 2 is got to the exhaust retaining, this moment, the 4th tapped hole 14, the 5th tapped hole 15 formed first air flue with two radial hole 25 conductings of spool 2 respectively, and two air vents 24 form second air flue with valve body 1 inwall respectively, the air-flow at differential pressure pickup two ends is discharged by the endoporus of spool 2 by first air flue, and the air communication in the inner groove 17 is crossed second air flue and discharged by exhaust port 16.
Embodiment two
With reference to Fig. 8, present embodiment is that with embodiment's one difference the outside of described spool 2 puts corresponding transform interface and links to each other with motor.Present embodiment is rotated by the motor driving spool, and all the other 26S Proteasome Structure and Functions are all identical.
The described content of this specification embodiment only is enumerating the way of realization of model utility design; protection domain of the present utility model should not be regarded as only limiting to the concrete form that embodiment states, protection domain of the present utility model also reach in those skilled in the art according to the utility model design the equivalent technologies means that can expect.
Claims (4)
1. novel leak test valve, it is characterized in that: comprise valve body and rotatable spool, described spool is installed in the valve body, have tapped hole, exhaust port and positioning spiro pit on the described valve body, described first tapped hole connects air compressor, second and third tapped hole connects volumetric standard and testing container respectively, and fourth, fifth tapped hole is connected respectively to the two ends of pressure transducer, and described valve body has inner groove at second and third tapped hole place; Described spool is provided with pressurization, pressure measurement, balance, exhaust gear, each gear shaft of circumferential upper edge of described spool all has groove to the relevant position, described pressurized tank can be communicated with the inner end of first, second and third tapped hole, described pressure measurement groove is provided with two, can be respectively the inner end of fourth, fifth tapped hole be communicated with the inner groove of its respective side, described compensating groove can be communicated with fourth, fifth tapped hole inner end, described air vent is provided with two, cooperates with two radial holes in the spool can be respectively fourth, fifth tapped hole be communicated with exhaust port accordingly.
2. novel leak test valve according to claim 1, it is characterized in that: the protruding axle of described spool is gone up each gear place and is had the steel ball hole, be provided with spring in the positioning spiro pit of described valve body, described spring cooperates the corresponding gear of locking with steel ball, the protruding axle head of described spool is provided with manual Joystick.
3. novel leak test valve according to claim 1 is characterized in that: the outside of described spool puts corresponding transform interface and links to each other with motor.
4. according to the described novel leak test valve of one of claim 1-3, it is characterized in that: described valve body is that the steel material is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202562104U CN201739564U (en) | 2010-07-13 | 2010-07-13 | Novel leak detection valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202562104U CN201739564U (en) | 2010-07-13 | 2010-07-13 | Novel leak detection valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201739564U true CN201739564U (en) | 2011-02-09 |
Family
ID=43554839
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202562104U Expired - Lifetime CN201739564U (en) | 2010-07-13 | 2010-07-13 | Novel leak detection valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201739564U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101893115A (en) * | 2010-07-13 | 2010-11-24 | 浙江工业大学 | Novel leak test valve |
| CN103758997A (en) * | 2014-01-20 | 2014-04-30 | 赵良红 | Rotary-type automatic transmission shift control valve |
| WO2016172115A1 (en) * | 2015-04-20 | 2016-10-27 | Nexmatix Llc | System and method for leakage detection using a directional control valve |
-
2010
- 2010-07-13 CN CN2010202562104U patent/CN201739564U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101893115A (en) * | 2010-07-13 | 2010-11-24 | 浙江工业大学 | Novel leak test valve |
| CN101893115B (en) * | 2010-07-13 | 2012-05-23 | 浙江工业大学 | Novel leak test valve |
| CN103758997A (en) * | 2014-01-20 | 2014-04-30 | 赵良红 | Rotary-type automatic transmission shift control valve |
| WO2016172115A1 (en) * | 2015-04-20 | 2016-10-27 | Nexmatix Llc | System and method for leakage detection using a directional control valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110209 Effective date of abandoning: 20120523 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20110209 Effective date of abandoning: 20120523 |