CN203272897U - Small water ring vacuum pump suction inlet check valve - Google Patents

Small water ring vacuum pump suction inlet check valve Download PDF

Info

Publication number
CN203272897U
CN203272897U CN2013202325757U CN201320232575U CN203272897U CN 203272897 U CN203272897 U CN 203272897U CN 2013202325757 U CN2013202325757 U CN 2013202325757U CN 201320232575 U CN201320232575 U CN 201320232575U CN 203272897 U CN203272897 U CN 203272897U
Authority
CN
China
Prior art keywords
valve
check valve
vacuum pump
suction inlet
water ring
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
CN2013202325757U
Other languages
Chinese (zh)
Inventor
张艳红
张永斌
韩永军
王东黎
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.)
Power Plant Datang International Poer Co Ltd Zhangjiakou
Original Assignee
Power Plant Datang International Poer Co Ltd Zhangjiakou
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 Power Plant Datang International Poer Co Ltd Zhangjiakou filed Critical Power Plant Datang International Poer Co Ltd Zhangjiakou
Priority to CN2013202325757U priority Critical patent/CN203272897U/en
Application granted granted Critical
Publication of CN203272897U publication Critical patent/CN203272897U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a small water ring vacuum pump suction inlet check valve. The small water ring vacuum pump suction inlet check valve is composed of a valve rod, a reset spring, a valve body and a spring adjustment gasket. The valve rod is a valve element and is integrally machined, and a sealing face lining is made of Teflon. The reset spring is thickened by 0.5mm (from 1.5mm to 2mm), and is in contact with the outer surface of the valve rod. The spring adjustment gasket has the functions of adjusting spring compression amount, valve rod movement guiding and steam flow guiding. Four holes with the diameter of 8mm are evenly distributed in the circumferential direction. By means of the technical scheme, the small water ring vacuum pump suction inlet check valve has the advantages of being good in sealing performance and guiding performance.

Description

A kind of small-sized Nash hytor suction port check valve
Technical field
The utility model relates to the vacuum equipment technical field, particularly the small-sized Nash hytor suction port of a kind of Turbo-generator Set check valve.
Background technique
Vacuum system and oil system contamination accident often occur in the Nash hytor suction port check valve that prior art provides, and in order to solve the generation of this type of phenomenon, have researched and developed this novel Nash hytor suction port check valve.
Summary of the invention
The utility model is in order to overcome the deficiencies in the prior art, and a kind of small-sized Nash hytor suction port check valve simple in structure, easy to maintenance is provided.
To achieve these goals, the utility model provides following technological scheme:
A kind of small-sized Nash hytor suction port check valve is comprised of valve rod, Returnning spring, valve body and spring spacer.
Preferably, described valve rod is the whole processing of spool, valve rod, and the sealing surface lining is teflon.
Preferably, described Returnning spring overstriking 0.5mm (increasing thick to 2mm by original 1.5) contacts with stem exterior surface.
Preferably, described spring adjustment pad has Regulation spring decrement, guides stem motion and steam flow leading role.The hole that 4 diameters are 8mm along the circumferential direction is evenly arranged.
By implementing above technological scheme, has following technique effect: have good sealing and guidance quality.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
In order better to understand the technical solution of the utility model, describe below in conjunction with accompanying drawing the embodiment that the utility model provides in detail.
The utility model embodiment provides a kind of small-sized Nash hytor suction port check valve, as shown in Figure 1, comprising: valve body 101, spool 102, Returnning spring 103, Returnning spring spacer 104, its inlet connecting 105.
In the above-described embodiments, require all to adopt screw thread in all connections of Nash hytor suction port check valve in order to satisfy system's leakproofness, part 101 and part 105 have formed valve body jointly for thread connecting mode, part 102 and part 103 form for whole turning, the sealed member and the guide element that form valve, Returnning spring spare 103 can be in the spool bottom by the spring pedestal seat ring, part 104 has played fixes and adjusts amount of spring compression, and the effect that dredging flow has been played in the aperture that 4 diameters that the surface is arranged are 8mm also can be used as dismounting adjustment pad.Part 104 and part 105 adopt and are threaded, and require to have certain concentricity herein.Guarantee the leakproofness of spool and valve seat.The concrete grammar of dismounting is loosening element 104, takes out part 103, screws out part 105, takes out part 102.
The above a kind of small-sized Nash hytor suction port check valve that the utility model embodiment is provided is described in detail, for one of ordinary skill in the art, thought according to the utility model embodiment, all will change in specific embodiments and applications, in sum, this description should not be construed as restriction of the present utility model.

Claims (1)

1. small-sized Nash hytor suction port check valve, formed by valve rod (102), Returnning spring (103), valve body (101) and spring spacer (104), it is characterized in that: described valve rod (102) is spool, the whole processing of valve rod, and the sealing surface lining is teflon; Described Returnning spring (103) overstriking is to 2mm; Described spring is adjusted pad (104) hole that 4 diameters to be arranged on it be 8mm and along the circumferential direction is evenly arranged.
CN2013202325757U 2013-04-20 2013-04-20 Small water ring vacuum pump suction inlet check valve Expired - Fee Related CN203272897U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2013202325757U CN203272897U (en) 2013-04-20 2013-04-20 Small water ring vacuum pump suction inlet check valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2013202325757U CN203272897U (en) 2013-04-20 2013-04-20 Small water ring vacuum pump suction inlet check valve

Publications (1)

Publication Number Publication Date
CN203272897U true CN203272897U (en) 2013-11-06

Family

ID=49503309

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2013202325757U Expired - Fee Related CN203272897U (en) 2013-04-20 2013-04-20 Small water ring vacuum pump suction inlet check valve

Country Status (1)

Country Link
CN (1) CN203272897U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104019038A (en) * 2014-06-12 2014-09-03 北京物华天宝镀膜科技有限公司 Oil return preventing valve device of mechanical pump

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104019038A (en) * 2014-06-12 2014-09-03 北京物华天宝镀膜科技有限公司 Oil return preventing valve device of mechanical pump

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Legal Events

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

Granted publication date: 20131106

Termination date: 20170420