CN202101828U - Verification apparatus used for pressure vessel safety valve - Google Patents

Verification apparatus used for pressure vessel safety valve Download PDF

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Publication number
CN202101828U
CN202101828U CN2011200997587U CN201120099758U CN202101828U CN 202101828 U CN202101828 U CN 202101828U CN 2011200997587 U CN2011200997587 U CN 2011200997587U CN 201120099758 U CN201120099758 U CN 201120099758U CN 202101828 U CN202101828 U CN 202101828U
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CN
China
Prior art keywords
safety valve
pressure vessel
pressure
cavity
calibration equipment
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Fee Related
Application number
CN2011200997587U
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Chinese (zh)
Inventor
胥金国
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SHANGHAI JINGPU INSTRUMENT FACTORY
Original Assignee
SHANGHAI JINGPU INSTRUMENT FACTORY
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 SHANGHAI JINGPU INSTRUMENT FACTORY filed Critical SHANGHAI JINGPU INSTRUMENT FACTORY
Priority to CN2011200997587U priority Critical patent/CN202101828U/en
Application granted granted Critical
Publication of CN202101828U publication Critical patent/CN202101828U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model relates to a verification apparatus used for a chemical pressure vessel, in particular to a verification apparatus used for a pressure vessel safety valve, comprising a connecting cavity, wherein the opening of the upper end of the connecting cavity is fixed with a safety valve in a manner of fitting and sealing, and the containing cavity is respectively connected with a pressure meter, a pressure sensor and a gas resource in a manner of sealing. The verification apparatus has the advantages of being suitable for online regular verification of chemical vessel safety valves with heavy caliber, being capable of performing accurate, efficient, sensitive and reliable monitoring, dispensing with a power supply, being convenient for carrying, overcoming the defects of the prior art, and making up the limitation of domestic prior safety valves verification apparatuses.

Description

The calibration equipment that is used for pressure vessel relief valve
Technical field
The utility model relates to the verifying attachment that pressure vessels for the chemical industry is used, particularly a kind of calibration equipment that is used for pressure vessel relief valve.
Background technology
In recent years along with fast development of national economy, the demand of industrial chemicals is increased considerably, chemical industry obtains fast development, and the process units scale is increasing, and working depth is constantly deepened.Safety valve is a kind of automatic valve, does not utilize the power of medium itself to discharge the fluid of a load quantity by any external force, to prevent the over proof safety value of pressure.After pressure recovered normally, valve row was again closed and is stoped medium to continue to flow out.Safety valve as the safety attachment of special equipment, is to guarantee chemical enterprise pressure vessel and pressure pipeline safety, prevents the last resort of major accident.Safety valve is normally operated on high temperature, the high-tension apparatus; Mostly medium is poisonous, harmful, inflammable, explosive material; Under physics, chemical factor effects such as on-stream pressure, temperature, medium cleanliness factor and surrounding medium corrosion; Safety valve performance particularly set-pressure and sealing property can change, and will cause safety valve not open or return seat by authorised pressure, cause production safety hidden danger and contaminated environment.Regulation " Annual Test of Safty Valves, general every year at least once " according to TSG ZF001-2006 " safety valve safety and technical supervision rules " B6.3.1 bar.
The periodic check of safety valve comprises that content is set-pressure and sealing load test.Safety valve setting pressure is meant the predetermined pressure that safety valve begins to open under service condition; Under this pressure; The power that makes valve opening that under the service condition of regulation, is produced by pressure medium is also referred to as opening pressure usually with making flap remain on the mutual balance of power on the valve seat.Sealing load is meant the import static pressure when carrying out leakage test, under this pressure, measures the slip through the closing member sealing surface.Existing internal security valve on-line detector; Mainly be to station boiler safety valve or petrochemical complex safety valve on-line monitoring with pressure vessel; Wherein: medium is single, stable in the boiler; And complicated, changeable owing to medium in the chemical industry class pressure vessel, different pressure vessels for the chemical industry normal operation circumstances are inequality, and this type of on-line detecting instrument for safety valve is inapplicable; Problem such as then there is complex structure in the on-line detector that petrochemical industry is used, costs an arm and a leg, practicality is not strong.
Summary of the invention
The purpose of the utility model is the weak point according to above-mentioned prior art; A kind of calibration equipment that is used for pressure vessel relief valve is provided; This calibration equipment connects safety valve, tensimeter, pressure transducer and source of the gas through connecting cavity, has realized the on-line testing of safety valve.
The utility model purpose realizes being accomplished by following technical scheme:
A kind of calibration equipment that is used for pressure vessel relief valve; It is characterized in that: said calibration equipment comprises that one connects cavity; Said connection cavity open upper end place and said safety valve applying sealing and fixing, its cavity volume is through pipeline be tightly connected respectively tensimeter, pressure transducer and source of the gas.
Said connection cavity and said safety valve surface of contact are provided with at least one sealing joint strip that is closed circular.
Offer on the said connection chamber body wall that tensimeter connects the hole, pressure transducer connects the hole and source of the gas connects the hole, and be tightly connected through corresponding pipeline and said tensimeter, pressure transducer and source of the gas respectively.
Said source of the gas comprises gas bomb, compressor and stop valve.
Said connection cavity lower edge is provided with ring flange, and is connected fixing through the ring flange of bolt and said safety valve.
The utility model has the advantages that: a kind of online periodic check device that is applicable to bigbore pressure vessels for the chemical industry safety valve is provided; Monitoring accurately, efficient, sensitive, reliable, need not power supply and easy to carry; Solve the weak point that present prior art exists, remedied the limitation of domestic existing safety valve detector.
Description of drawings
Accompanying drawing 1 is the utility model one-piece construction synoptic diagram.
Embodiment
Through embodiment the utility model characteristic and other correlated characteristic are done further explain below in conjunction with accompanying drawing, so that technician's of the same trade understanding:
As shown in Figure 1, figure acceptance of the bid note is respectively: pressure vessel 1, gas bomb 2, stop valve 3, connection cavity 4, stop valve 5, ring flange 6, pressure transducer 7, tensimeter 8, bolt 9, safety valve 10, pipeline 11, compressor 12.
Referring to Fig. 1; Device includes and connects cavity 4 described in the present embodiment; Connecting cavity 4 is the container of open upper end, connects the lower surface sealing of cavity 4, and upper surface is the opening sealing surface; The opening of opening shape and safety valve 10 is complementary, and can sealing joint strip be set according to circumstances and improve sealing property.Connect and to offer respectively on cavity 4 cavity walls that source of the gas connects the hole, tensimeter connects the hole and pressure transducer connects the hole; Gas drives and connects the hole through pipeline 11 with the source of the gas that is connected cavity 4 through compressor 12 and is connected in the gas bomb 2; Tensimeter 6 and pressure transducer 5 respectively through pipeline 11 connect the hole with the tensimeter that is connected cavity 4, pressure transducer connects the hole and is connected; Compressor 12 also is provided with stop valve 3 with being connected between the cavity 4; Be provided with stop valve 5 between the interface channel of safety valve 10 and pressure vessel 1; Under the situation that stop valve 5 cuts off safety valve 10 and pressure vessels for the chemical industry interface channel, safety valve 10 is separated, is promoted from pressure vessel 1 interface channel, connects cavity 4 this moment and is positioned over safety valve 10 inlets; Connect the opening of the corresponding safety valve 10 of upper shed face of cavity 4, satisfy safety valve 10 verifications, detect needed pressure through the power source that connects in the cavity 4.Pipeline 11 adopts 15MPa metal flexible cord, gas bomb 2 stored nitrogen or pressurized air.
During use, at first, guarantee safe disconnection, do not have dielectric leakage through the interface channel between pressure vessel 1 passage stop valve, 5 closed safe valves 10 and the pressure vessel 1.With lifting instrument (lifting jack etc.) safety valve 10 is separated, promotes from pressure vessels for the chemical industry interface channel valve, hoisting depth should be greater than the height that connects cavity 4.The size of safety valve 10 bores that the root a tree name is to be detected; With connecting the porch that cavity 4 is placed into safety valve 10 accurately accordingly; The sealing surface of safety valve 10 is matched with the sealing surface that is connected cavity 4; Unclamp the lifting instrument, through bolt 9 with safety valve 10, connect cavity 4, and the pressure vessels for the chemical industry interface channel on ring flange 6, tightening together reaches the regulation requirement.
Calibration equipment described in the present embodiment; Solved the weak point that present prior art exists; Remedy the limitation of domestic existing safety valve detector, a kind of be applicable to heavy caliber, dismounting, installation extremely online periodic check, the detection of inconvenient pressure vessels for the chemical industry safety valve are provided.Use accurately, efficient, sensitive, reliable, need not power supply, easy to carry, very big dissemination is arranged.

Claims (5)

1. calibration equipment that is used for pressure vessel relief valve; It is characterized in that: said calibration equipment comprises that one connects cavity; Said connection cavity open upper end place and said safety valve applying sealing and fixing, its cavity volume is through pipeline be tightly connected respectively tensimeter, pressure transducer and source of the gas.
2. a kind of calibration equipment that is used for pressure vessel relief valve according to claim 1 is characterized in that: said connection cavity and said safety valve surface of contact are provided with at least one sealing joint strip that is closed circular.
3. a kind of calibration equipment that is used for pressure vessel relief valve according to claim 1; It is characterized in that: offer on the said connection chamber body wall that tensimeter connects the hole, pressure transducer connects the hole and source of the gas connects the hole, and be tightly connected through corresponding pipeline and said tensimeter, pressure transducer and source of the gas respectively.
4. a kind of calibration equipment that is used for pressure vessel relief valve according to claim 1, it is characterized in that: said source of the gas comprises gas bomb, compressor and stop valve.
5. a kind of calibration equipment that is used for pressure vessel relief valve according to claim 1 is characterized in that: said connection cavity lower edge is provided with ring flange, and is connected fixing through the ring flange of bolt and said safety valve.
CN2011200997587U 2011-04-08 2011-04-08 Verification apparatus used for pressure vessel safety valve Expired - Fee Related CN202101828U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011200997587U CN202101828U (en) 2011-04-08 2011-04-08 Verification apparatus used for pressure vessel safety valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011200997587U CN202101828U (en) 2011-04-08 2011-04-08 Verification apparatus used for pressure vessel safety valve

Publications (1)

Publication Number Publication Date
CN202101828U true CN202101828U (en) 2012-01-04

Family

ID=45387834

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011200997587U Expired - Fee Related CN202101828U (en) 2011-04-08 2011-04-08 Verification apparatus used for pressure vessel safety valve

Country Status (1)

Country Link
CN (1) CN202101828U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104058193A (en) * 2013-03-19 2014-09-24 中国石油天然气股份有限公司 Communicating vessel for oil tank breathing valve
CN106499889A (en) * 2016-12-23 2017-03-15 王小东 A kind of perforate flange and the safety valve pressure pilot system based on perforate flange
CN108088640A (en) * 2017-12-25 2018-05-29 北华大学 Chemical barrel reliability test

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104058193A (en) * 2013-03-19 2014-09-24 中国石油天然气股份有限公司 Communicating vessel for oil tank breathing valve
CN104058193B (en) * 2013-03-19 2016-12-28 中国石油天然气股份有限公司 Tank's Breather Valve linker
CN106499889A (en) * 2016-12-23 2017-03-15 王小东 A kind of perforate flange and the safety valve pressure pilot system based on perforate flange
CN108088640A (en) * 2017-12-25 2018-05-29 北华大学 Chemical barrel reliability test
CN108088640B (en) * 2017-12-25 2019-07-09 北华大学 Chemical barrel reliability test

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C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20120104

Termination date: 20140408