CN209654242U - A kind of exhaust structure and rotor-type compressor of rotor-type compressor - Google Patents

Abstract

The utility model provides the exhaust structure and rotor-type compressor of a kind of rotor-type compressor, belongs to Compressor Technology field.The exhaust structure includes exhaust outlet, valve block, seat ring and valve seat, and seat ring is set on valve seat and is arranged around exhaust outlet, and valve block is set to above exhaust outlet and can open or close exhaust outlet, and seat ring is made of nonmetallic materials.Since the seat ring in the exhaust structure is made of nonmetallic materials, the seat ring of non-metallic material is set on valve seat, pressure when installation is smaller, unlike metal back-up thimble in the prior art is suppressed through cannot replace in valve seat, so the exhaust structure of rotor-type compressor provided by the utility model is when seat ring is scrapped, seat ring can be replaced, to reduce the scrappage of exhaust structure.The exhaust structure uses nonmetallic materials simultaneously, and the sealing of seat ring and valve block becomes soft seal from rigid seal, and sealing effect is more preferable, and the service life of valve block can be improved, reduce the noise during compressor operation.

Description

A kind of exhaust structure and rotor-type compressor of rotor-type compressor

Technical field

The utility model relates to rotor-type compressor field, in particular to the exhaust structure of a kind of rotor-type compressor and turn Minor compressor.

Background technique

Exhaust structure in current rotor-type compressor generallys use tongue valve arrangement, and tongue valve arrangement is usually such as Fig. 1 It is shown comprising bolt or rivet 1, baffle 2, valve block 3, seat ring 4 and valve seat 5, seat ring 4 therein are usually by powder metallurgy material Material is pressed into after being made and through valve seat 5, alternatively, using valve seat 5 cast iron materials by valve seat 5 and the direct Milling Process of seat ring 4 at The structure of one.

Existing Reed Valve exhaust structure is the prior art has at least the following problems: seat ring is made of metal material, if seat ring is scrapped, Since seat ring cannot be individually replaced, it will lead to entire Reed Valve exhaust structure and entire cylinder cap scrapped.

Utility model content

The utility model provides the exhaust structure and rotor-type compressor of a kind of rotor-type compressor, to reduce exhaust knot The scrappage of structure.The exhaust structure uses nonmetallic materials simultaneously, and the sealing of seat ring and valve block becomes soft seal from rigid seal, Sealing effect is more preferable, and the service life of valve block can be improved, reduce the noise during compressor operation.

To achieve the above object, the utility model provides a kind of exhaust structure of rotor-type compressor, the exhaust knot Structure includes exhaust outlet, valve block, seat ring and valve seat, and the seat ring is set on the valve seat and is arranged around the exhaust outlet, described Valve block is set to above the exhaust outlet and can open or close the exhaust outlet, and the seat ring is made of nonmetallic materials.

Optionally, the seat ring is embedded on the valve seat and is arranged around the exhaust outlet.

Optionally, the exhaust structure further includes circlip, and the circlip is described between the seat ring and the valve seat Circlip is for fixing the seat ring.

Optionally, the seat ring is connected by screw thread with the valve seat.

Optionally, the valve block can contact the seat ring to close the exhaust outlet or under external force far from described Seat ring is to open the exhaust outlet.

Optionally, the end face that the seat ring is contacted with the valve block is higher than the valve base surface around the seat ring.

Optionally, the exhaust structure further includes baffle, and the baffle passes through connector far from one end of the exhaust outlet It is connect with the valve seat.Optionally, the top that the baffle passes through connector setting and the valve block.

Optionally, the connector is bolt or rivet.

The utility model provides a kind of rotor-type compressor, and the rotor-type compressor includes any of the above-described row Depressed structure.

The exhaust structure of rotor-type compressor provided by the utility model, the seat ring in exhaust structure is by nonmetallic materials system It is set on valve seat at the seat ring of, non-metallic material, pressure when installation is smaller, unlike metal back-up thimble in the prior art is suppressed It cannot be replaced through in valve seat, so the exhaust structure of rotor-type compressor provided by the utility model is scrapped in seat ring When, seat ring can be replaced, to reduce the scrappage of exhaust structure.Simultaneously the exhaust structure use nonmetallic materials, seat ring and The sealing of valve block becomes soft seal from rigid seal, and sealing effect is more preferable, and the service life of valve block can be improved, reduce compressor Noise in operation process.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of Reed Valve exhaust structure in the prior art；

Fig. 2 is a kind of structural schematic diagram of exhaust structure provided by the utility model；

Fig. 3 is a kind of structural schematic diagram of exhaust structure with circlip provided by the utility model；

Fig. 4 is a kind of structural schematic diagram of threaded exhaust structure provided by the utility model.

[the reference numerals are as follows]:

1- bolt or rivet；

2- baffle；

3- valve block；

4- seat ring；

5- valve seat；

21- exhaust outlet；

22- valve block；

23- seat ring；

24- valve seat；

25- circlip；

26- screw thread.

Specific embodiment

To keep the purpose of this utility model, advantages and features clearer, below in conjunction with 1~4 pair of the utility model of attached drawing The exhaust structure and rotor-type compressor of a kind of rotor-type compressor proposed are described in further detail.It should be noted that attached Figure is all made of very simplified form and using non-accurate ratio, only to convenient, lucidly aid illustration is originally practical new The purpose of type embodiment.

It is a kind of exhaust structure provided by the utility model, which includes exhaust outlet 21, valve block with reference to shown in 2 22, seat ring 23 and valve seat 24, seat ring 23 are set on valve seat 24 and are arranged around exhaust outlet 21, and valve block 22 is set on exhaust outlet 21 Side simultaneously can open or close exhaust outlet 21, and seat ring 23 is made of nonmetallic materials.

Optionally, when specifically making the exhaust structure, seat ring 23 can be using enhancing PTFE (polytetrafluoroethylene, polytetrafluoroethylene (PTFE)) or PEEK (polyetheretherketone, polyether-ether-ketone) etc. are non- Metal material；Seat ring 23 is embedded on valve seat 24.Seat ring 23, which is embedded on valve seat 24, refers to that the one end of seat ring 23 has no through Valve seat 24, and being mounted in the ontology of valve seat 24, the other end of seat ring 23 can protrude from valve seat 24 outer surface or It is flush to the outer surface of valve seat 24, so that seat ring 23 and valve block 22 can close exhaust outlet 21 when contacting.

The exhaust structure of rotor-type compressor provided by the utility model, the seat ring in exhaust structure is by nonmetallic materials system At the seat ring of non-metallic material is provided on valve seat, and pressure when installation is smaller, unlike metal back-up thimble in the prior art is strong Pressure cannot be replaced through in valve seat, so the exhaust structure of rotor-type compressor provided by the utility model is scrapped in seat ring When, seat ring can be replaced, to reduce the scrappage of exhaust structure.Simultaneously the exhaust structure use nonmetallic materials, seat ring and The sealing of valve block becomes soft seal from rigid seal, and sealing effect is more preferable, and the service life of valve block can be improved, reduce compressor Noise in operation process.

Optionally, the exhaust structure of rotor-type compressor provided by the utility model, it includes valve seat 24 can also be by Non-metallic material is made.For example, valve seat 24 can be made using nonmetallic materials such as enhancing PTFE or PEEK.With prior art phase Than being formed by soft seal effect than existing hard sealing using the exhaust structure of rotor-type compressor made of nonmetallic materials Effect is more preferable, to improve the compression efficiency of compressor.In addition, using nonmetallic materials when making seat ring 23 and valve seat 24 Processing technology metal material than in the prior art processing technology it is simple, the exhaust structure of rotor-type compressor easy to accomplish Seal request, to improve the production efficiency of the exhaust structure of rotor-type compressor.

Optionally, the exhaust structure of rotor-type compressor provided by the utility model, the exhaust structure further include circlip 25, For circlip 25 between seat ring 23 and valve seat 24, circlip 25 is used for permanent seat ring 23.As shown in figure 3, in 23 inserted valve seat of seat ring Circlip 25 is installed in 24 position, can increase the tightness between seat ring 23 and valve seat 24 in this way.

Optionally, the exhaust structure of rotor-type compressor provided by the utility model, seat ring 23 can by screw thread 26 with It is connected in valve seat 24.As shown in figure 4, seat ring 23 is connected by screw thread 26 with valve seat 24, replacement seat ring can be convenient in this way 23。

Optionally, the exhaust structure of rotor-type compressor provided by the utility model, valve block 22 can contact seat ring 23 with Close exhaust outlet 21 or under external force far from seat ring 23 to open exhaust outlet 21.Refering to what is shown in Fig. 2, valve block 22 is in natural shape Sealing structure can be formed with seat ring 23 under state, to close exhaust outlet 21；When there is gas to be vented by exhaust outlet 21, valve block 22 under the influence of gas far from seat ring 23 so that open exhaust outlet 21.

Optionally, the exhaust structure of rotor-type compressor provided by the utility model, the end face that seat ring is contacted with valve block are high Valve base surface around seat ring.Refering to what is shown in Fig. 2, the end face for the seat ring 23 that seat ring 23 is contacted with valve block 22 is the protrusion of annulus Shape, the end face of the seat ring 23 are higher than the surface of the valve seat 24 around seat ring 23, in this way can be to avoid the table of valve block 22 and valve seat 24 Face contact, since valve block 22 is only contacted with the seat ring of non-metallic material 23, it is possible to reduce exhaust structure and generate at work Noise.

Optionally, the exhaust structure of rotor-type compressor provided by the utility model further includes baffle, and baffle is far from exhaust One end of mouth 21 is connect by connector with valve seat 24, and the other end of baffle is used to limit the stroke of valve block 22.One end of baffle Side of the valve block 22 far from exhaust outlet 21 can be set to by connector, for example, being fixed on baffle by bolt or rivet On valve seat 24.Baffle is set on the top of valve block 22, the stroke that valve block 22 is moved towards the direction far from exhaust outlet 21 can be limited, The generation of the case where to avoid deformation quantity of the valve block 22 when opening exhaust outlet 21 excessive, lead to 22 deformation or damage of valve block.

Based on the same technical idea, the utility model additionally provides a kind of rotor-type compressor, which includes upper State the exhaust structure of any rotor-type compressor.

The exhaust structure of rotor-type compressor provided by the utility model is selected in compressor, the seat ring in the exhaust structure It is made of nonmetallic materials, the seat ring of non-metallic material is set on valve seat, and pressure when installation is smaller, unlike in the prior art Metal back-up thimble is suppressed through that cannot replace in valve seat, so the exhaust knot of rotor-type compressor provided by the utility model Structure can replace seat ring when seat ring is scrapped, to reduce the scrappage of exhaust structure；In addition, valve block and non-metallic material Seat ring forms soft seal, more preferable than the sealing effect sealed firmly that existing metal material and metal material are formed.

Foregoing description is only the description to the utility model preferred embodiment, not to any limit of the scope of the utility model Fixed, any change, the modification that those skilled in the art do according to the disclosure above content belong to the power of the utility model The protection scope of sharp claim.

Claims (10)

1. a kind of exhaust structure of rotor-type compressor, the exhaust structure includes exhaust outlet, valve block, seat ring and valve seat, spy Sign is that the seat ring is set on the valve seat and is arranged around the exhaust outlet, and the valve block is set on the exhaust outlet Side simultaneously can open or close the exhaust outlet, and the seat ring is made of nonmetallic materials.

2. exhaust structure according to claim 1, which is characterized in that the seat ring is embedded on the valve seat and around institute State exhaust outlet setting.

3. exhaust structure according to claim 1 or 2, which is characterized in that the exhaust structure further includes circlip, the card Spring is between the seat ring and the valve seat, and the circlip is for fixing the seat ring.

4. exhaust structure according to claim 1 or 2, which is characterized in that the seat ring passes through screw thread and the valve seat phase Connection.

5. exhaust structure according to claim 1 or 2, which is characterized in that the valve block can contact the seat ring to seal Close the exhaust outlet or under external force far from the seat ring to open the exhaust outlet.

6. exhaust structure according to claim 1 or 2, which is characterized in that the end face that the seat ring is contacted with the valve block Higher than the valve base surface around the seat ring.

7. exhaust structure according to claim 1 or 2, which is characterized in that the exhaust structure further includes baffle, the gear The one end of plate far from the exhaust outlet is connect by connector with the valve seat.

8. exhaust structure according to claim 7, which is characterized in that the baffle is set to the valve block by connector Top.

9. exhaust structure according to claim 8, which is characterized in that the connector is bolt or rivet.

10. a kind of rotor-type compressor, which is characterized in that the rotor-type compressor includes claim 1-9 any described Exhaust structure.