CN203216669U - Pressure checking apparatus - Google Patents

Pressure checking apparatus Download PDF

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Publication number
CN203216669U
CN203216669U CN 201320091560 CN201320091560U CN203216669U CN 203216669 U CN203216669 U CN 203216669U CN 201320091560 CN201320091560 CN 201320091560 CN 201320091560 U CN201320091560 U CN 201320091560U CN 203216669 U CN203216669 U CN 203216669U
Authority
CN
China
Prior art keywords
stop valve
pressure
valve
interface
connects
Prior art date
Application number
CN 201320091560
Other languages
Chinese (zh)
Inventor
谢永前
Original Assignee
福建省长汀金龙稀土有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 福建省长汀金龙稀土有限公司 filed Critical 福建省长汀金龙稀土有限公司
Priority to CN 201320091560 priority Critical patent/CN203216669U/en
Application granted granted Critical
Publication of CN203216669U publication Critical patent/CN203216669U/en

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Abstract

The utility model discloses a pressure checking device, which comprises a pressure reducing valve, a standard pressure gauge, a three-way connector, a plurality of stop valves and air pipes, wherein the pressure reducing valve is provided with an air source interface and two pressure reducing rear interfaces; the air source interface is connected to a first stop valve, the first stop valve is connected to the air pipe and connected to a pressure source; one of the pressure reducing rear interface is connected to a second stop valve, and the second stop valve is connected to the standard pressure gauge; the other pressure reducing rear interface is connected to a first interface of the three-way connector, a second interface is connected to a third stop valve reducing the pressure, a third interface is connected to a fourth stop valve, and the fourth stop valve is connected to the air pipe and then connected to a pressure gauge or a sensor being checked. The pressure checking apparatus is applied to detection of pressure gauges or sensors, low in cost, convenient to install, simple in structure and convenient to move, and greatly improves the field checking efficiency. The pressure checking apparatus is particularly applied to axial pressure gauges installed on a dial plate and field fast check, and can solve the problem of medium pollution produced by checking.

Description

A kind of pressure checking device
Technical field
The utility model relates to a kind of pressure checking device, it is applicable to the quick verification of on-the-spot tensimeter (sensor), and cost is low, it is simple, easy for installation to realize, and simple in structure, handling safety, convenience, improve field-checking efficient greatly, can solve the medium pollution problem that produces because of verification.
Background technology
Tensimeter (sensor) is widely used in all trades and professions, is necessary to its periodic check.In the prior art, method of calibration is generally used piston gage, pressure testers, portable pressure calibration equipment, and these methods of calibration all need be pulled down tensimeter (sensor) and carry out verification from the scene, time-consuming, effort, and efficient is low, or cost is higher.Use the piston gage verification, make pressure transmitting medium because using oils, very easily pollute because verification produces product.
On the other hand, application number is 200920194786 utility model patent, must pull down sensor from the scene, is installed on the orifice-plate type mounting blocks, and efficient is low; Application number is 200920172751 utility model patent, complex structure, and the cost height, efficient is low; Application number is 200920034965 utility model patent, is only applicable to the verification pressure transducer; Application number is 99256513 utility model patent, complex structure, the operation effort, mobile trouble, pressure source is little gas cylinder and manual miniature oil pressure pump and compose in parallel after pressure export valve is separately connected again, because outlet valve leaks, cause the verification trouble to reach and pollute prohibiting oil pressure table (sensor) easily.
The utility model content
The purpose of this utility model is to provide a kind of pressure checking device, be applicable to the quick verification of tensimeter (sensor), easily mobile, cost is low, easy for installation and simple in structure, improve field-checking efficient greatly, can solve the medium pollution problem that produces because of verification.
In order to reach above-mentioned purpose, solution of the present utility model is: a kind of pressure checking device comprises reduction valve, master gauge, three-way connection, some stop valves and tracheae; Reduction valve has a gas source interface and two decompression rear ports; Gas source interface connects first stop valve, and first stop valve connects tracheae for being connected to pressure source; A decompression rear port connects second stop valve, and second stop valve connects master gauge; Another decompression rear port connects first interface of three-way connection, and second interface connects the 3rd stop valve of step-down, and the 3rd interface connects the 4th stop valve, and the 4th stop valve connects tracheae for being connected to by verification tensimeter (sensor).
Described first stop valve is connected with reduction valve by straight coupling with second stop valve, the 3rd stop valve is connected with three-way connection by straight coupling with the 4th stop valve, first stop valve is connected with tracheae by tracheae rapid-acting coupling with the 4th stop valve, second stop valve is connected with master gauge by pressure tapping, the tracheae that the 4th stop valve connects by tracheae rapid-acting coupling and pressure tapping be connected by verification tensimeter (sensor).
Described three-way connection is connected with reduction valve by straight coupling.
Described reduction valve also has a decompression front port, and the decompression front port connects little tensimeter.
After adopting such scheme, the utility model is by reasonable disposition, the operation of reduction valve and stop valve, and the flexible connection of pressure source is not subjected to the restriction of distance, realizes site safety, the verification easily and fast of tensimeter (sensor).The utility model is applicable to tensimeter (sensor), be specially adapted to the axial tensimeter of installing of on-the-spot dial plate, the verification of on-the-spot pressure transducer, can carry out quick verification to on-the-spot tensimeter (sensor), after guaranteeing to connect reliably, open, close relevant stop valve, by regulating the adjuster bar of reduction valve, the verification of boosting; After closing the stop valve before the reduction valve into, slowly open vent valve to verification force value and realize the step-down verification.The utility model cost is low, easy for installation and simple in structure, easy-to-operate, and conveniently moving improves field-checking efficient greatly, and medium is gas, can solve the medium pollution problem that produces because of verification.
Below in conjunction with drawings and the specific embodiments the utility model is done detailed explanation.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Label declaration
Reduction valve 1, gas source interface 11, decompression rear port 12 and 13, decompression front port 14, adjuster bar 15, master gauge 2, by verification tensimeter 21, little tensimeter 22, three-way connection 3, first stop valve, 41, the second stop valves, 42, the three stop valves 43, the 4th stop valve 44, tracheae 51 and 52, pressure tapping 61 and 62, straight coupling 71,72,73,74 and 75, tracheae rapid-acting coupling 81,82 and 83.
Embodiment
Consult shown in Figure 1ly, a kind of pressure checking device that the utility model discloses comprises reduction valve 1, master gauge 2, three-way connection 3, some stop valves and tracheae.
Reduction valve 1 has a gas source interface 11 and two decompression rear ports 12 and 13 at least.Gas source interface 11 connects first stop valve, 41, the first stop valves 41 and connects tracheae 51 for being connected to pressure source.Decompression rear port 12 connects second stop valve, 42, the second stop valves 42 and connects master gauge 2.Decompression rear port 13 connects first interface of three-way connection 3, the 3rd stop valve 43 that pressure release was used when second interface of three-way connection 3 connected the step-down verification, the 3rd interface of three-way connection 3 connects the 4th stop valve 44, the four stop valves 44 and connects tracheae 52 for being connected to by verification tensimeter (sensor) 21.
In order to further facilitate installation, guarantee security and the operability of verification, for verification brings convenience, the utility model is connected with 72 first stop valve 41 by straight coupling 71 with second stop valve 42 with reduction valve 1, the 3rd stop valve 43 is connected with three-way connection 3 with 74 by straight coupling 73 with the 4th stop valve 44, first stop valve 41 is connected with 52 with tracheae 51 with 82 by tracheae rapid-acting coupling 81 respectively with the 4th stop valve 44, second stop valve 42 is connected with master gauge 2 by pressure tapping 61, the tracheae 52 that the 4th stop valve 44 connects by tracheae rapid-acting coupling 83 and pressure tapping 62 be connected by verification tensimeter 21.Three-way connection 3 is connected with reduction valve 1 by straight coupling 75.Wherein, some tracheae rapid-acting couplings 81,82 and 83 can be matched as required, especially can be straight-through (1 spot pressure in school), threeway (2 spot pressures in school) with the tracheae rapid-acting coupling 83 that is connected by verification tensimeter (sensor) 21, if be threeway or lead to a plurality of by verification tensimeter 21(sensor by tracheae rapid-acting coupling 83 more) be connected, can be carried out verification to a plurality of by verification tensimeter (sensor) 21 simultaneously.For guaranteeing the safety of verification, easy to operate, stop valve can rationally be installed before tracheae rapid-acting coupling 83.
In addition, reduction valve 1 of the present utility model also has a decompression front port 14, and decompression front port 14 connects little tensimeter 22, is used to indicate pressure source pressure.
Pressure source of the present utility model can be industry spot source of the gas, pressurized air or little gas cylinder, according to tracheae, associated adapter, the stop valve of verification pressure selection pressure source and corresponding voltage withstand class.Stop valve can carry out the replacement of respective valve class as required.When the utility model uses, before the verification, with tracheae 51, first stop valve 41 reduction valve 1 and pressure source are connected, with tracheae 52, the 4th stop valve 44 is reduction valve 1 and connected by verification tensimeter 21.
Close first stop valve 41, the opening pressure source tests, guarantees to connect reliably, does not leak.
Close the 3rd stop valve 43 and the 4th stop valve 44, open first stop valve 41 and second stop valve 42, test, guarantee to connect reliably, do not leak.
Close the 3rd stop valve 43, open the 4th stop valve 44, open first stop valve 41 and second stop valve 42, test, guarantee to connect reliably, do not leak, during test, can regulate top hole pressure by the adjuster bar 15 of regulating reduction valve 1.
It is reliable to determine that each element connects, and after not leaking, closes first stop valve 41, opens (exhaust is used) the 3rd stop valve 43, and making gauge pressure is zero, closes the 3rd stop valve 43 again.Open first stop valve 41 and second stop valve 42, with reference to JJG52-1999 " General Manometer of Elastic Tube, pressure vacuum gauge and vacuum meter vertification regulation " relevant provision, slowly regulate the adjuster bar 15 of reduction valve 1 to the force value of required verification, the verification of boosting.
Close first stop valve 41, second stop valve 42 is held open state, slowly regulate the 3rd stop valve 43 and be vented to required force value, carry out the step-down verification with reference to JJG52-1999 " General Manometer of Elastic Tube, pressure vacuum gauge and vacuum meter vertification regulation " relevant provision.
Verification finishes, first closing presure source outlet valve, and being vented to gauge pressure by the 3rd stop valve 43 is zero, safety is guaranteed in the dismounting of being correlated with again.
Being specific embodiment of the utility model only below, is not the restriction to protection domain of the present utility model.All equivalent variations of doing according to the mentality of designing of this case all fall into the protection domain of this case.

Claims (4)

1. a pressure checking device is characterized in that: comprise reduction valve, master gauge, three-way connection, some stop valves and tracheae; Reduction valve has a gas source interface and two decompression rear ports; Gas source interface connects first stop valve, and first stop valve connects tracheae for being connected to pressure source; A decompression rear port connects second stop valve, and second stop valve connects master gauge; Another decompression rear port connects first interface of three-way connection, and second interface connects the 3rd stop valve of step-down, and the 3rd interface connects the 4th stop valve, and the 4th stop valve connects tracheae for being connected to by the verification tensimeter.
2. a kind of pressure checking device as claimed in claim 1, it is characterized in that: described first stop valve is connected with reduction valve by straight coupling with second stop valve, the 3rd stop valve is connected with three-way connection by straight coupling with the 4th stop valve, first stop valve is connected with tracheae by tracheae rapid-acting coupling with the 4th stop valve, second stop valve is connected with master gauge by pressure tapping, the tracheae that the 4th stop valve connects by tracheae rapid-acting coupling and pressure tapping be connected by the verification tensimeter.
3. a kind of pressure checking device as claimed in claim 1, it is characterized in that: described three-way connection is connected with reduction valve by straight coupling.
4. a kind of pressure checking device as claimed in claim 1 is characterized in that: described reduction valve also has a decompression front port, and the decompression front port connects little tensimeter.
CN 201320091560 2013-02-28 2013-02-28 Pressure checking apparatus CN203216669U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201320091560 CN203216669U (en) 2013-02-28 2013-02-28 Pressure checking apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201320091560 CN203216669U (en) 2013-02-28 2013-02-28 Pressure checking apparatus

Publications (1)

Publication Number Publication Date
CN203216669U true CN203216669U (en) 2013-09-25

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201320091560 CN203216669U (en) 2013-02-28 2013-02-28 Pressure checking apparatus

Country Status (1)

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CN (1) CN203216669U (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104075842A (en) * 2014-07-22 2014-10-01 国家电网公司 Pressure gage detector
CN104776956A (en) * 2014-01-15 2015-07-15 上海理工大学 Test device for pressure sensors
CN106321075A (en) * 2015-06-23 2017-01-11 神华集团有限责任公司 An electronic pressure gauge and a calibration method for the electronic pressure gauge
CN107560790A (en) * 2017-09-28 2018-01-09 西安航天动力试验技术研究所 Pressure transducer vapour-pressure type field calibration device
CN109900426A (en) * 2019-03-27 2019-06-18 中国化学工程第三建设有限公司 Verify the accurate method of low pressure gauge pressure

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104776956A (en) * 2014-01-15 2015-07-15 上海理工大学 Test device for pressure sensors
CN104075842A (en) * 2014-07-22 2014-10-01 国家电网公司 Pressure gage detector
CN106321075A (en) * 2015-06-23 2017-01-11 神华集团有限责任公司 An electronic pressure gauge and a calibration method for the electronic pressure gauge
CN107560790A (en) * 2017-09-28 2018-01-09 西安航天动力试验技术研究所 Pressure transducer vapour-pressure type field calibration device
CN109900426A (en) * 2019-03-27 2019-06-18 中国化学工程第三建设有限公司 Verify the accurate method of low pressure gauge pressure

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