CN204101250U - A kind of double mechanical seal stationary state pressure testing device - Google Patents

A kind of double mechanical seal stationary state pressure testing device Download PDF

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Publication number
CN204101250U
CN204101250U CN201420479871.1U CN201420479871U CN204101250U CN 204101250 U CN204101250 U CN 204101250U CN 201420479871 U CN201420479871 U CN 201420479871U CN 204101250 U CN204101250 U CN 204101250U
Authority
CN
China
Prior art keywords
mechanical seal
pressure testing
pressure
stationary state
test pump
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
CN201420479871.1U
Other languages
Chinese (zh)
Inventor
焦玉清
曹英斌
兰宦勤
朱道庆
蹇季洪
赵彬
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.)
China Petroleum and Chemical Corp
Sinopec Zhongyuan Oilfield Co Puguang Branch
Original Assignee
China Petroleum and Chemical Corp
Sinopec Zhongyuan Oilfield Co Puguang Branch
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 China Petroleum and Chemical Corp, Sinopec Zhongyuan Oilfield Co Puguang Branch filed Critical China Petroleum and Chemical Corp
Priority to CN201420479871.1U priority Critical patent/CN204101250U/en
Application granted granted Critical
Publication of CN204101250U publication Critical patent/CN204101250U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model relates to a kind of double mechanical seal stationary state pressure testing device, be made up of mechanical seal pressure testing part, test pump and high pressure line, mechanical seal pressure testing part is Flange joint pipe nipple, and articulation is installed at high pressure line two ends, one end is connected with test pump, one end and mechanical connection.The utility model adopts the method for test pump pressurization can observe directly the change of pressure and judge whether mechanical seal exists leakage; Do not need to disassemble mechanical seal to carry out pressure testing with intraware, solve secondary and disassemble hidden danger mechanical seal being caused to leakage; The fabrication and installation of mechanical seal pressure testing part are simple, and can carry out adjustment processing according to different mechanical seal sizes, are widely used.

Description

A kind of double mechanical seal stationary state pressure testing device
Technical field
The utility model discloses a kind of double mechanical seal stationary state pressure testing device, belongs to mechanical sealing parts checkout equipment technical field.
Background technology
Double mechanical seal is widely used in relating to sulphur in chemical industry and energy enterprise, relates to acid, relates to the pumps such as alkali.After double mechanical seal is installed to pump, stationary state pressure testing need be carried out, to guarantee safe handling.The accuracy requirement of double mechanical seal to assembling and zero spare part is higher, as defect appears in mechanical seal assembling or zero spare part, just likely occurs mechanical seal leakage situation after being installed to pump, mechanical seal can be caused to remove from pump re-assembly.Labour intensity of doing over again is comparatively large, and equipment runs abnormal meeting and causes financial cost to increase simultaneously, and environmental benefit is poor.
Generally take to take external structure apart for double mechanical seal pressure testing at present, pressure testing mode is carried out to intraware structure for pressure test.
CN 201444105 U " mechanical sealing pressure testing device " can carry out pressure testing process to single mechanical end face seal internals, but cannot carry out overall pressure testing to double mechanical seal.
Summary of the invention
The utility model discloses a kind of double mechanical seal stationary state pressure testing device, and object is to solve need take double mechanical seal at present apart and carry out pressure testing to intraware, easily causes the defect of mechanical seal secondary leakage.
For achieving the above object, the utility model adopts technical scheme as follows:
The utility model is made up of mechanical seal pressure testing part, test pump and high pressure line, and mechanical seal pressure testing part is Flange joint pipe nipple, and articulation is installed at high pressure line two ends, and one end is connected with test pump, one end and mechanical connection.
The utility model has following good effect compared with existing machinery sealing pressure tester: the method adopting test pump to pressurize can observe directly the change of pressure and judge whether mechanical seal exists leakage; Do not need to disassemble mechanical seal to carry out pressure testing with intraware, solve secondary and disassemble hidden danger mechanical seal being caused to leakage; The fabrication and installation of mechanical seal pressure testing part are simple, and can carry out adjustment processing according to different mechanical seal sizes, are widely used.
Accompanying drawing explanation
Fig. 1 is the utility model schematic diagram;
1-screw rod, 2-mechanical seal pressure testing part threaded connection hole, 3-mechanical seal end surface " O " type closure gasket groove, 4-" O " type sealing ring, 5-" O " type sealing ring, 6-mechanical seal afterbody " O " type closure gasket groove, 7-nut, 8-mechanical seal bolt hole, the articulation of 9-test pump, 10-test pump, 11-gate valve, 12-high pressure line, 13-tensimeter, 14-mechanical seal pressure testing part, 15-mechanical seal, 16-articulation, 17-mechanical seal oil-in, 18-mechanical seal oil outlet, 19-plug, 20-Seal Oil runner.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in detail:
See accompanying drawing 1, the utility model is made up of mechanical seal pressure testing part 14, test pump 10 and high pressure line 12, mechanical seal pressure testing part 14 is Flange joint pipe nipple, with bolts with mechanical seal 15, the two ends of high pressure line 12 are articulation (9,16), one end is connected with test pump 10, and one end is connected with the oil-in 17 of mechanical seal 15.
The endface position of described Flange joint pipe nipple is inlaid with " O " type sealing ring 4, Flange joint pipe nipple inner tubal wall is inlaid with " O " type sealing ring 5.
Described high pressure line 12 is provided with tensimeter 13 and gate valve 11.
" O " type sealing ring 4 is installed in mechanical seal end surface " O " type closure gasket groove 3, " O " type sealing ring 5 is installed in mechanical seal root " O " type closure gasket groove 6, mechanical seal pressure testing part 14 is installed in mechanical seal 15 according to direction as shown, by screw rod 1 through mechanical seal bolt hole 8, utilize mechanical seal pressure testing part threaded connection hole 2 and nut 7 to coordinate mechanical seal pressure testing part 14 and mechanical seal 15 are closely coordinated, for by mechanical seal 15 space outerpace namely between " O " type sealing ring 4 and " O " closed type ring 5 space seal completely, to ensure that test medium can not be flowed out by Seal Oil runner 20, guarantee pressure testing success.
By articulation 16, high pressure line 12 is connected with mechanical seal 15, high pressure line 12 upward pressure table 13 changes for observing mechanical seal 15 pressure, on high pressure line 12, gate valve 11 is opened for being cut off with pressure testing system by test pump 10, avoid causing pressure testing inaccurate because leak in test pump 10, high pressure line 12 is connected with test pump 10 by articulation 9.
During use, after above-mentioned each assembly is connected, mechanical seal oil outlet 18 is in open state, open gate valve 11, start test pump 10, after mechanical seal oil outlet 18 is fuel-displaced, cut off test pump 10, and with plug 19, mechanical seal oil outlet 18 is sealed, then start test pump 10, to tensimeter 13 is shown as pressure testing set pressure, closing gate valve 11, then pressurize, if tensimeter 13 produces Pressure Drop or the outside each seal point of mechanical seal 15 leaks, then proves that mechanical seal 15 needs to ressemble.

Claims (3)

1. a double mechanical seal stationary state pressure testing device, be made up of mechanical seal pressure testing part (14), test pump (10) and high pressure line (12), it is characterized in that: mechanical seal pressure testing part (14) is Flange joint pipe nipple, same mechanical seal (15) is with bolts, the two ends of high pressure line (12) are articulation (9,16), one end is connected with test pump (10), and one end is connected with the oil-in (17) of mechanical seal (15).
2. double mechanical seal stationary state pressure testing device according to claim 1, is characterized in that: the endface position of described Flange joint pipe nipple is inlaid with " O " type sealing ring (4), Flange joint pipe nipple inner tubal wall is inlaid with " O " type sealing ring (5).
3. double mechanical seal stationary state pressure testing device according to claim 1, is characterized in that: described high pressure line (12) is provided with tensimeter (13) and gate valve (11).
CN201420479871.1U 2014-08-22 2014-08-22 A kind of double mechanical seal stationary state pressure testing device Expired - Fee Related CN204101250U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420479871.1U CN204101250U (en) 2014-08-22 2014-08-22 A kind of double mechanical seal stationary state pressure testing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420479871.1U CN204101250U (en) 2014-08-22 2014-08-22 A kind of double mechanical seal stationary state pressure testing device

Publications (1)

Publication Number Publication Date
CN204101250U true CN204101250U (en) 2015-01-14

Family

ID=52269669

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420479871.1U Expired - Fee Related CN204101250U (en) 2014-08-22 2014-08-22 A kind of double mechanical seal stationary state pressure testing device

Country Status (1)

Country Link
CN (1) CN204101250U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105865718A (en) * 2016-03-28 2016-08-17 北京理工大学 Sealing performance testing apparatus of sealing structure

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105865718A (en) * 2016-03-28 2016-08-17 北京理工大学 Sealing performance testing apparatus of sealing structure

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
EXPY Termination of patent right or utility model
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20150114

Termination date: 20150822