CN208041238U - A kind of centrifugal refigerating compressor cone shaped one-way valve - Google Patents
A kind of centrifugal refigerating compressor cone shaped one-way valve Download PDFInfo
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- CN208041238U CN208041238U CN201820329135.6U CN201820329135U CN208041238U CN 208041238 U CN208041238 U CN 208041238U CN 201820329135 U CN201820329135 U CN 201820329135U CN 208041238 U CN208041238 U CN 208041238U
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- spool
- ring
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- cone shaped
- way valve
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Abstract
A kind of centrifugal refigerating compressor cone shaped one-way valve is equipped with O-ring (7), the O-ring (7) and valve seat (8) conical surface line contact sealing on the taper surface of spool (5) front end.With simple and reasonable for structure, the starting differential pressure of valve is small, reversed obturation effect is good, high reliability.O-ring is that line contacts with the valve seat conical surface on spool, and decrement is small, has good airproof performance, and with the self-cleaning function for removing pollutant on sealing surface face, reduce the technological requirement to the spool conical surface, eliminates valve body and the requirement of valve seat orifice concentricity of general check valve.
Description
Technical field
The utility model is related to arrive a kind of cone shaped one-way valve, more particularly to a kind of centrifugal refigerating compressor taper list
To valve.
Background technology
Check valve is a kind of direction control element, for control fluid in one direction on can pass freely through, if pressure
Direction is on the contrary, valve is just soon closed, to prevent reverse flow.Check valve is in hydraulic pressure and pneumatic product using very extensively.
General centrifugal refigerating compressor exhaust outlet is connected to check valve, prevents compressor from dropping in rotating speed operational process and being compressed when shutting down
Damage of the gas backflow to centrifuge.
Centrifugal refigerating compressor is used in High cooling power refrigeration system, it is desirable that check valve negotiability is big, starting differential pressure is wanted
Small, good airproof performance and service life are long.General cone shaped one-way valve resistance is small, sealing performance, thus is widely adopted, especially
It is the system of high-pressure high-flow, and check valve is all made of taper valve core.But traditional cone check valve is to valve seat conical seal (contact) face
And the pollution between spool and valve body is sensitive, it, can if pollution piles up between valve seat taper surface and spool and valve body
It can cause spool clamping stagnation, and therefore cause to leak between spool and valve seat.And cone shaped one-way valve is more stringent to technological requirement,
It must assure that valve body and valve seat orifice have higher concentricity, and the spool conical surface must fine grinding.
This patent is by designing a kind of centrifugal refigerating compressor cone shaped one-way valve, such as attached drawing 1.By by existing taper
Check valve is sealed by the spool conical surface and valve seat taper-face contact, changes into the line contact sealing of O-ring and the valve seat conical surface, is compressed in this way
Measure it is small, sealing it is more advantageous, reduce the processing request to spool, the valve seat conical surface；Spool is directed to cross structure, and in spool
Increase slip ring between spring, the valve body eliminated and the requirement of valve seat orifice concentricity.Such a centrifugal refigerating compressor
With cone shaped one-way valve, a kind of utility model structure is formed, particularly suitable centrifugal refigerating compressor is used, and positive starting differential pressure is only
There is 0.9KPa.
Utility model content
The purpose of this utility model:A kind of centrifugal refigerating compressor cone shaped one-way valve is provided, there is simple in structure, valve
Starting differential pressure it is small, reversed obturation effect is good, high reliability
The technical solution of the utility model：A kind of centrifugal refigerating compressor cone shaped one-way valve, in 5 front end taper of spool
Face is equipped with O-ring 7, the O-ring 7 and 8 conical surface line contact sealing of valve seat.
A kind of centrifugal refigerating compressor cone shaped one-way valve, which is characterized in that further include valve body 1, spring 3,
Slip ring 4, sealing ring 6 are connected between spool 5 and spring 3 by 4 transition of slip ring, cross step and the sliding in 5 stage casing of spool
Cross recess combination on ring 4 is connected, and under the action of pressure difference, spool 5 is combined with slip ring 4 together can be in 1 cavity of valve body certainly
By sliding.
A kind of centrifugal refigerating compressor cone shaped one-way valve, the pyramidal structure at 5 front end back of the spool and
The runner that cross structure is combined into the taper surface on slip ring 4.
A kind of centrifugal refigerating compressor cone shaped one-way valve, which is characterized in that further include cut-off ring 2, it is described
Cut-off ring 2 is located between 1 confined planes of spring 3 and valve body, and confined planes is avoided to be in direct contact with spring 3.
The beneficial effects of the utility model:The utility model centrifugal refigerating compressor cone shaped one-way valve has structure letter
Single, reasonable, the starting differential pressure of valve is small, reversed obturation effect is good, high reliability.O-ring is with the valve seat conical surface on spool
Line contacts, and decrement is small, has good airproof performance, and with the self-cleaning function for removing pollutant on sealing surface face, reduces pair
The technological requirement of the spool conical surface eliminates valve body and the requirement of valve seat orifice concentricity of general check valve.
The runner that the pyramidal structure and cross structure at spool front end back are combined into the taper surface on slip ring, such as attached drawing
2, fluid by when resistance it is small, be more suitable for centrifugal refigerating compressor and small requirement, the i.e. stream of valve wanted to check valve flow resistance
Logical ability is big.
Spool, slip ring and the cut-off ring of cone shaped one-way valve are manufactured using engineering plastics, and cost is relatively low, easy for installation, real
Preferable with property, application easy to spread has larger practical value.
Description of the drawings
A kind of description of the drawings of centrifugal refigerating compressor cone shaped one-way valve：
Attached drawing 1 is centrifugal refigerating compressor cone shaped one-way valve structure chart；
Attached drawing 2 is centrifugal refigerating compressor cone shaped one-way valve open state schematic diagram；
Attached drawing 3 is the spool and the isometric diagram of O-ring assembly of centrifugal refigerating compressor cone shaped one-way valve；
Wherein：1- valve bodies, 2- cut-offs ring, 3- springs, 4- slip rings, 5- spools, 6- sealing rings, 7-O types circle, 8- valve bodies.
Specific implementation mode
The utility model embodiment is specifically explained below.
As shown in Fig. 1, a kind of centrifugal refigerating compressor cone shaped one-way valve, by valve body 1, cut-off ring 2, spring 3,
Slip ring 4, spool 5, sealing ring 6, O-ring 7, valve seat 8 form.
Wherein, the O-ring 7 is arranged on 5 front end taper surface of spool, and the spool 5 is by being arranged in spool front-end-cone
O-ring 7 is sealed with 8 taper-face contact of valve seat on shape face, is connected by 4 transition of slip ring between spool 5 and spring 3,5 stage casing of spool
Cross step combined with the cross recess on slip ring 4 be connected, play a supporting role to spool 5, the cross structure of 5 rear end of spool
Guiding role when realizing spool sliding in 1 cavity of valve body.The bore in valve body 1 is arranged in the slip ring 4, to spool 5
Support and guiding role are played, 3 one end of the spring is placed in the annular groove of slip ring 4, and end straightway is placed in slip ring 4
Aperture in, against on cut-off ring 2, end straightway is placed in the aperture of cut-off ring 2 and valve body 1 at another end of spring 3, described
End the setting of ring 2 in 1 bore the bottom of the steps of valve body, the valve body 1 is connected by screw with valve seat 8 and is combined into unidirectional valve chamber
Body is sealed between valve body and valve seat by being provided with sealing ring 6.
Cone shaped one-way valve is connected by screw in centrifugal refigerating compressor exhaust outlet, cone shaped one-way valve and centrifugal refrigerating
Sealing ring is equipped between compressor junction, when access refrigeration system works, under the action of gas differential pressure, spool 5 and sliding
Ring 4 together can be free to slide in valve body 1, inlet pressure difference be less than starting differential pressure when, spool 5 spring 3 elastic force effect under,
Realize reversed sealing；When inlet pressure difference increases, spool 5 overcomes spring force under the action of pressure difference, realizes that valve is unidirectionally opened
The function of opening, and cone shaped one-way valve forward direction starting differential pressure only has 0.9KPa.
Claims (4)
1. a kind of centrifugal refigerating compressor cone shaped one-way valve, which is characterized in that be equipped with O on the taper surface of spool (5) front end
Type circle (7), the O-ring (7) and valve seat (8) conical surface line contact sealing.
2. a kind of centrifugal refigerating compressor cone shaped one-way valve according to claim 1, which is characterized in that further include valve
Body (1), spring (3), slip ring (4), sealing ring (6) are connect between spool (5) and spring (3) by slip ring (4) transition,
The cross step in spool (5) stage casing is combined with the cross recess on slip ring (4) to be connected, under the action of pressure difference, spool (5) and cunning
Rotating ring (4) combination together can be free to slide in valve body (1) cavity.
3. a kind of centrifugal refigerating compressor cone shaped one-way valve according to claim 1, which is characterized in that the spool
(5) runner that the pyramidal structure at front end back and cross structure are combined into the taper surface on slip ring (4).
4. a kind of centrifugal refigerating compressor cone shaped one-way valve according to claim 1, which is characterized in that further include cutting
Only ring (2), the cut-off ring (2) are located between spring (3) and valve body (1) confined planes, and confined planes is avoided directly to be connect with spring (3)
It touches.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820329135.6U CN208041238U (en) | 2018-03-09 | 2018-03-09 | A kind of centrifugal refigerating compressor cone shaped one-way valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820329135.6U CN208041238U (en) | 2018-03-09 | 2018-03-09 | A kind of centrifugal refigerating compressor cone shaped one-way valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208041238U true CN208041238U (en) | 2018-11-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820329135.6U Active CN208041238U (en) | 2018-03-09 | 2018-03-09 | A kind of centrifugal refigerating compressor cone shaped one-way valve |
Country Status (1)
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| CN (1) | CN208041238U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112858273A (en) * | 2021-01-13 | 2021-05-28 | 梅里医疗科技(洋浦)有限责任公司 | Detection kit for intelligent hospital, adaptive detection device and detection method |
-
2018
- 2018-03-09 CN CN201820329135.6U patent/CN208041238U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112858273A (en) * | 2021-01-13 | 2021-05-28 | 梅里医疗科技(洋浦)有限责任公司 | Detection kit for intelligent hospital, adaptive detection device and detection method |
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