CN2842015Y - Spiral refrigerant compressor non-return valve - Google Patents
Spiral refrigerant compressor non-return valve Download PDFInfo
- Publication number
- CN2842015Y CN2842015Y CN 200520105783 CN200520105783U CN2842015Y CN 2842015 Y CN2842015 Y CN 2842015Y CN 200520105783 CN200520105783 CN 200520105783 CN 200520105783 U CN200520105783 U CN 200520105783U CN 2842015 Y CN2842015 Y CN 2842015Y
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- China
- Prior art keywords
- cover plate
- fluid
- auger
- check valve
- cooling medium
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- Expired - Fee Related
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Abstract
The utility model relates to a non-return valve for a spiral refrigerant compressor, which comprises a casing, wherein both ends of the casing are provided with an input mouth and an output mouth, a passage is arranged in the casing, and a first cover plate and a second cover plate which are pivoted at the passage are arranged at the input mouth. When fluid passes through the input mouth to press the input mouth, the fluid can push the first cover plate and the second cover plate to flow into the passage, and the fluid passes through the two cover plates to flow out of the outlet mouth. When the fluid flows back, the fluid can push the two cover plates to cover the input mouth for preventing the fluid from flowing back to the compressor from the input mouth and for preventing the fluid from flowing out of the output mouth. Because the two cover plates can be inwards turned over to the pivoting position by the pushing action of the fluid, the fluid flowing area in the passage can not be influenced, and the fluid pressure at the output mouth is kept to approach to the flowing-in pressure of the output mouth.
Description
[technical field]
The utility model is about a kind of check valve for auger-type cooling medium compressor.
[background technique]
In order to adjust the temperature in human various environment of living in or place, the someone has proposed the relevant design of air-cooling system successively, can make environment of living in reach desirable temperature by personnel's control, as the refrigerating and air conditioning system of office building, it can make the indoor occupant sensation than cool and comfortable in order to adjust the room temperature in the building, and the refrigerating and air conditioning system basic equipment of prior art as shown in figure 12, mainly include: compressor, condenser (hot type), vaporizer (cold type) etc.; Compressor can be with the fluid of low-pressure low-temperature＜for example: refrigerant〉be compressed into the fluid of high pressure-temperature, utilize the heat release of condenser and the heat absorption of vaporizer again, be carried to indoor heat outdoor, wherein a kind of spiral cold medium compressor (61), it is to utilize rotor (62) to reach the compressor of compression, if rotor (62) stops start, then fluid can be back in the compressor (61) because of imbalance of pressure, cause rotor (62) idle running to cause rotor (62) to damage, and then have influence on working life of compressor (61), so produce the design of safety check (60),, avoid rotor (62) to damage in order to stop fluid reflux.
Please referring to Figure 13, the safety check of prior art (60) includes a housing (70), one axostylus axostyle (80) and an airtight shrouding disc (90), wherein a passage (71) is run through into and an end face has an input hole (72) in this housing (70) central authorities, the other end has a delivery outlet (73), delivery outlet (73) centre wears an axostylus axostyle (80), this axostylus axostyle (80) is positioned at passage (71) and an affixed end in airtight shrouding disc (90) central authorities, make airtight shrouding disc (90) and can cover to input hole (72) formation airtight along passage (71) axial motion, when being compressed into high-temperature high-pressure state, the compressed machine of fluid (61) rotor (62) flows through to input hole (72) when locating, can impose a pressure to airtight shrouding disc (90), make airtight shrouding disc (90) break away from input hole (72), fluid gets final product in the inlet passage (71), and walk around airtight shrouding disc (90) and flow out by delivery outlet (73), when pressure disappears, the fluid that remains in the pipeline can be located to reflux toward safety check (60), and airtight shrouding disc (90) imposed a backpressure, and airtight shrouding disc (90) is stressed and can covers toward input hole (72), so can stop fluid reflux; Yet, when fluid flow to airtight shrouding disc (90), the card (91) of this airtight shrouding disc (90) can form obstruction by convection cell, make the space of necessary pile warp passage (71) internal face of fluid and airtight shrouding disc (90) both sides, export by delivery outlet (73) again, but the fluid flow area of locating less than input hole (72) because of passage (71) internal face and the formed fluid flow area of all sides of airtight shrouding disc (90), make that pressure can reduce when fluid was flowed through the space of housing (70) internal face and airtight shrouding disc (90) both sides, cause this fluid also to reduce at the delivery pressure of delivery outlet (73), as allowing the fluid output pressure of delivery outlet (73) reach the expection standard, compressor (61) extra power then must be provided, to offset the pressure loss that airtight shrouding disc (90) is caused, so not only cause the waste of the energy, also increased the expenditure of cost.
[model utility content]
The purpose of this utility model provides a check valve for auger-type cooling medium compressor, can improve the shortcoming of aforementioned prior art, make safety check except having good non-return effect, also can allow fluid in safety check, unlikely build-up of pressure reduces, do not need to supply with extra power when fluid is circulated and but can keep original pressure in system, avoid causing the waste of the energy and the unnecessary expenditure of cost.
The utility model provides a kind of check valve for auger-type cooling medium compressor, it is characterized in that: it includes:
One housing, it has passage, and an end face has delivery outlet, and the other end has the inlet opening, and this vias inner walls forms flange along the inlet opening;
Two cover plates, this two cover plate join a synthetic path length greater than the lamellar body of inlet opening internal diameter, and this two cover plate vertical respectively this plane is relatively set with to sincere portion in an edge, another side then has the driving fit portion of demihull shape;
One axostylus axostyle, itself and this two cover plates are pivoted mutually, and these axostylus axostyle two ends are fixed in place, inlet opening in the passage, and this two cover plate is that the axle center is positioned at this passage inward flange place swingably with the axostylus axostyle, and the sincere portion that supports of this two cover plate is positioned at passage.
This two cover plate can be that swing in passage in the axle center with the axostylus axostyle, reaches the effect of opening or cover the inlet opening.
When a pressure orders about fluid and flow to the inlet opening, this two cover plate can support to positioning rod towards swing in the passage, fluid this two cover plate of promptly flowing through is flowed out by delivery outlet, and when the pressure disappearance, during fluid reflux, fluid can impose a backpressure to this two cover plate, impels this two cover plate to cover toward the inlet opening and stops fluid reflux, and driving fit portion offsets driving fit in the relative passage another side of this two cover plate, prevents that fluid from being oozed out by this two cover plates seam crossing.
Because during the space of fluid pile warp cover plate both sides, the inner walls face is suitable with place, inlet opening circulation area convergence with the fluid flow area that forms between the cover plate, so flowing through, fluid more can not cause during this place pressure to reduce because of the change of circulation area, make fluid still can keep the original incoming pressure of convergence at equipped at outlet port, promptly do not need thus again to compressor input extra power, the fluid of workplace institute expecting pressure just can be provided, reach the purpose that reduces energy waste and cost expenditure.
[description of drawings]
Fig. 1 is first embodiment's perspective view of the present utility model.
Fig. 2 is first embodiment's part three-dimensional exploded view of the present utility model.
Fig. 3 is first embodiment's part bottom view of the present utility model.
Fig. 4 is first embodiment, first action diagram of the present utility model.
Fig. 5 is first embodiment's of the present utility model first action diagram.
Fig. 6 is a positioning rod illustrative view of the present utility model.
Fig. 7 is first embodiment, second action diagram of the present utility model.
Fig. 8 is second embodiment's part exploded view of the present utility model.
Fig. 9 is second embodiment's part bottom view of the present utility model.
Figure 10 is second embodiment's action diagram of the present utility model.
Figure 11 is another action diagram of second embodiment of the present utility model.
Figure 12 is the schematic representation of prior art.
Figure 13 is the action diagram of prior art.
Figure 14 is another action diagram of prior art.
[embodiment]
Please referring to shown in Fig. 1,2, check valve for auger-type cooling medium compressor of the present utility model includes:
One housing (10), penetrate and be provided with a circular channel (11), make one end have delivery outlet (12), the other end has inlet opening (13) and can be connected with fluid line respectively, wherein passage (11) inwall is held in passage (11) by inlet opening (13) and radially is relatively set with pivot hole (15) in both sides, and wherein top, a pivot hole (15) is provided with a positioning rod (16) in leaning on passage (11) centre, inlet opening (13) end inwall forms a flange (14), this flange (14) is provided with a packing ring (17) by passage (11) internal end surface, this packing ring (17) be elastic material (for example: rubber, Furtulon) made.
First cover plate (20) and second cover plate (30), it all is to form semicircle lamellar body, be relatively set with relatively or not respectively on both one sides to sincere portion, it is to form along this two cover plate (20) (30) edge and vertical first the supporting sincere (21) and second and support sincere (31) of its plane, another side has driving fit portion, and it is that first catch (22) and second catch (32) are formed for a driving fit portion; Wherein first catch (22) one ends are connected in first cover plate (20), and the other end is unsettled, and itself and first cover plate (20) linear edge connecting part are provided with pivot pipe (23); Second catch (32) one ends have one can be for the recessed edge (320) of first catch (22) embedding, and be connected in second cover plate (30), be formed with an opening (321) this moment in this place, the other end is unsettled, and second cover plate (30) linear edge connecting part respectively is provided with a pivot tube (33) (34) at same center line;
One axostylus axostyle (40) penetrates pivot tube (33), pivot pipe (23), pivot tube (34) in regular turn, the pivot hole (15) of affixed then its two ends in passage (11), make first cover plate (20) and second cover plate (30) on flange (14) end face, be combined into the lamellar body (cooperate referring to four figure shown in) of an external diameter, can swing mutually for pivot by axostylus axostyle (40) greater than inlet opening (13) internal diameter.
Please referring to shown in Figure 3, when first and second cover plate (20), (30) toward inlet opening (13) when covering, its first catch (22) becomes a plate body with recessed edge (320) tabling of second catch (32), be positioned at first and second cover plate (20), (30) relative delivery outlet (12) side in addition, because first catch (22) is to be closed in opening (321) to locate, and is spilt by first and two cover plates (20), (30) seam crossing so can prevent fluid.
Please cooperate Fig. 1 referring to Fig. 4, shown in 5, it is to disclose of the present utility model first to support sincere (21) and second and support sincere (31) state when being oppositely arranged, when high-pressure liquid flow to inlet opening (13) when locating, can impose a pressure to first and second cover plate (20) (30), make both be swung away from flange (14), it first supports sincere (21) and second and supports sincere (31) and offset in passage (11), and axially form an inclined-plane respectively at relative passage (11), and fluid enters in the housing (10), and first and second cover plate (20) (30) of flowing through is flowed out by delivery outlet (12); Please referring to shown in Figure 6, when first or second cover plate (20) (30) is rocked to positioning rod (16), this positioning rod (16) can support to its lamellar body to limit its amplitude of fluctuation, avoid it to climb over axostylus axostyle (40), to an other side.
When fluid reflux, can first and second cover plate (20) (30) be covered toward inlet opening (13) to both support sincere (21) (31) and impose a backpressure, and its periphery and packing ring (17) driving fit prevention fluid reflux mutually.
Please cooperate Fig. 4 referring to shown in Figure 7, it is to disclose of the present utility model first to support sincere (21) and second and support sincere (31) state when not being oppositely arranged, when flowing to inlet opening (13), fluid locates to promote first cover plate (20) and second cover plate (30), both are rocked to positioning rod (16) offsets, it first supports sincere (21) and intersects mutually in passage (11) to sincere (31) with second, make first cover plate (20) and second cover plate (30) amplitude of fluctuation bigger, fluid flow through its with passage (11) inwall between the also relative increase of circulation area, so make fluid can maintain more approaching original pressure at delivery outlet (12), and when fluid reflux, can impose a backpressure to both sincere (21) (31) of supporting, first and second cover plate (20) (30) is covered toward inlet opening (13), and its periphery and packing ring (17) driving fit prevention fluid reflux mutually.
Please referring to Fig. 8 to 11, this is another embodiment of the present utility model again, aforesaidly supports sincere portion and also can be several supporting rods (50), and driving fit portion also can be made up of two driving fit sheets (24), (35), wherein:
This supporting rod (50) can be relatively or is not relatively arranged on first and second cover plate (20), (30) with on the one side, and it is that the other end has the body of rod of screw thread (52) for an end has pushing and pressing part (51);
This two driving fits sheet (24), (35) are the lamellar body of first and second cover plate (20), (30) semicircular in shape relatively, but its linear edge of mat pastes mutually to forming the circular lamellar body of a path length greater than inlet opening (13) and driving fit;
Two bonding pads (25) (36) are arranged in addition in addition, and it is the lamellar body of relative first and second cover plate (20), (30) semicircular in shape, and formation one path length is less than the circular lamellar body of inlet opening (13) but its linear edge of mat offsets;
Aforesaid driving fit sheet (24), (35) lay respectively at first and second cover plate (20), (30) with two bonding pads (25), (36) between, three co-located place on sheet dignity is provided with perforation according to several supporting rods (50), make these several supporting rods (50) run through three's perforation, with a nut and screw thread (52) locking, it is fixing that this two driving fits sheet (24) (35) is clipped respectively in first and second cover plate (20) (30) and two bonding pads (25) (36), aforementioned axostylus axostyle (40) penetrates pivot tube (33) in regular turn, pivot pipe (23), pivot tube (34), pivot hole (15) back (please cooperate referring to shown in Figure 1) of affixed its two ends in passage (11), these several supporting rods (50) promptly are positioned at passage (11) and are built in flange (14), first cover plate (20) is located to promote in inlet opening (13) and second cover plate (30) is swung in passage (11) when fluid flow to, if these several supporting rods (50) are for being oppositely arranged, then relative supporting rod (50) understands that the phase mutual connection supports when first cover plate (20) and second cover plate (30) are rocked to an angle; If these several supporting rods (50) are not for being oppositely arranged, then these several supporting rods (50) can support to its another set cover plate, and first cover plate like this (20) and second cover plate (30) promptly can be rocked to one than wide-angle; When fluid reflux, first cover plate (20) and second cover plate (30) can be because of fluid to its surperficial applied pressures, and the gravity of itself and supporting rod (50) and cover to the inlet opening (13), and this two driving fits sheet (24), (35) join driving fit in this two cover plate (20), (30) relative passage (11) another side, its periphery is affixed on the flange (14) of shell (10), prevents that so fluid from being oozed out by seam crossing.
In sum, the user can be provided with position and length by what adjust supporting rod (50), set first cover plate (20) and second cover plate (30) angle toward the interior swing of passage (11), and shell (10) can not must be provided with aforesaid packing ring (17), when fluid reflux, also can airtightly reach the effect of non-return equally.
Claims (10)
1. check valve for auger-type cooling medium compressor, it is characterized in that: it includes:
One housing, it has passage, and an end face has delivery outlet, and the other end has the inlet opening, and this vias inner walls forms flange along the inlet opening;
Two cover plates, this two cover plate join a synthetic path length greater than the lamellar body of inlet opening internal diameter, and this two cover plate vertical respectively this plane is relatively set with to sincere portion in an edge, another side then has the driving fit portion of demihull shape;
One axostylus axostyle, itself and this two cover plates are pivoted mutually, and these axostylus axostyle two ends are fixed in place, inlet opening in the passage, and this two cover plate is that the axle center is positioned at this passage inward flange place swingably with the axostylus axostyle, and the sincere portion that supports of this two cover plate is positioned at passage.
2. check valve for auger-type cooling medium compressor as claimed in claim 1 is characterized in that: this two cover plate support sincere for not being oppositely arranged.
3. check valve for auger-type cooling medium compressor as claimed in claim 1 or 2 is characterized in that: should support sincere and support sincere for form vertical two along this cover plate edge.
4. check valve for auger-type cooling medium compressor as claimed in claim 3 is characterized in that: can and locate to be provided with a positioning rod in this axostylus axostyle fixed connecting end homonymy and cover plate swing on this vias inner walls.
5. check valve for auger-type cooling medium compressor as claimed in claim 1 or 2 is characterized in that: this driving fit portion is two lamellar bodies, and wherein a slice has recessed edge, and another sheet embeds this recessed edge driving fit.
6. check valve for auger-type cooling medium compressor as claimed in claim 3 is characterized in that: this flange is provided with a packing ring by the channel interior periphery.
7. check valve for auger-type cooling medium compressor as claimed in claim 1 or 2 is characterized in that: should support sincere and be several supporting rods, an end of the body of rod is the pushing and pressing part.
8. check valve for auger-type cooling medium compressor as claimed in claim 7 is characterized in that: can and locate to be provided with a positioning rod in axostylus axostyle fixed connecting end homonymy and cover plate swing on this vias inner walls.
9. check valve for auger-type cooling medium compressor as claimed in claim 1, it is characterized in that: this driving fit portion is two driving fit sheets, this driving fit sheet is the shape lamellar body of first and second cover plate relatively, pastes mutually to forming the lamellar body of a path length greater than inlet opening and driving fit with the edge.
10. check valve for auger-type cooling medium compressor as claimed in claim 9, it is characterized in that: it further has two bonding pads, it is relative first and second cover plate of shape and engages the lamellar body of external diameter less than these two cover plates, be positioned at two relative two cover plate another sides of driving fit sheet, clip with two cover plates respectively and fix two driving fit sheets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520105783 CN2842015Y (en) | 2005-11-24 | 2005-11-24 | Spiral refrigerant compressor non-return valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520105783 CN2842015Y (en) | 2005-11-24 | 2005-11-24 | Spiral refrigerant compressor non-return valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2842015Y true CN2842015Y (en) | 2006-11-29 |
Family
ID=37445900
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520105783 Expired - Fee Related CN2842015Y (en) | 2005-11-24 | 2005-11-24 | Spiral refrigerant compressor non-return valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2842015Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018015866A1 (en) * | 2016-07-20 | 2018-01-25 | Atlas Copco Airpower, Naamloze Vennootschap | Check valve assembly |
| BE1024421B1 (en) * | 2016-07-20 | 2018-02-20 | Atlas Copco Airpower Naamloze Vennootschap | Check valve assembly |
-
2005
- 2005-11-24 CN CN 200520105783 patent/CN2842015Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018015866A1 (en) * | 2016-07-20 | 2018-01-25 | Atlas Copco Airpower, Naamloze Vennootschap | Check valve assembly |
| BE1024421B1 (en) * | 2016-07-20 | 2018-02-20 | Atlas Copco Airpower Naamloze Vennootschap | Check valve assembly |
| AU2017300993B2 (en) * | 2016-07-20 | 2020-02-20 | Atlas Copco Airpower, Naamloze Vennootschap | Check valve assembly |
| US11293558B2 (en) | 2016-07-20 | 2022-04-05 | Atlas Copco Airpower, Naamloze Vennootschap | Check valve assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Beijing Fusheng Machinery Co., Ltd. Assignor: Fusheng Co., Ltd. Contract fulfillment period: 2008.5.26 to 2016.5.25 Contract record no.: 2009110000051 Denomination of utility model: Spiral refrigerant compressor non-return valve Granted publication date: 20061129 License type: Exclusive license Record date: 20090428 |
|
| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2008.5.26 TO 2016.5.25; CHANGE OF CONTRACT Name of requester: BEIJING FUZHENG MACHINARY CO., LTD. Effective date: 20090428 |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20061129 Termination date: 20111124 |