CN104344072A - Check valve sealing component, check valve, air conditioner and heat pump water heater - Google Patents
Check valve sealing component, check valve, air conditioner and heat pump water heater Download PDFInfo
- Publication number
- CN104344072A CN104344072A CN201310341676.2A CN201310341676A CN104344072A CN 104344072 A CN104344072 A CN 104344072A CN 201310341676 A CN201310341676 A CN 201310341676A CN 104344072 A CN104344072 A CN 104344072A
- Authority
- CN
- China
- Prior art keywords
- seal
- valve
- annular projection
- shut
- check valve
- 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.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/46—Attachment of sealing rings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
Abstract
The invention discloses a check valve sealing component. The check valve sealing component comprises a sealing component body made of elastic material, wherein the sealing component body adopts a cylinder; a first through hole is formed along the central axis of the sealing component body; a first annular bulge and a second annular bulge which are raised outwards from the peripheral wall of the sealing component body and extend in the circumferential direction of the peripheral wall are formed in the peripheral wall of the sealing component body; the first annular bulge and the second annular bulge are respectively arranged on the peripheral wall in positions close to two end surfaces of the sealing component body. The invention also discloses a check valve provided with the check valve sealing component and an air conditioner or a heat pump water heater assembled with the check valve with the check valve sealing component. The check valve sealing component is not easy to suffer alternant effect of hot and cold fluid, and deformation failure is not easy to occur, so that the check valve, the air conditioner and the heat pump water heater provided by the invention have good sealing performance, and the operation stability of the check valve, the air conditioner and the heat pump water heater is improved.
Description
Technical field
The present invention relates to air-conditioning technical field, particularly relate to a kind of shut off valve seal, adopt the stop valve of this shut off valve seal and assemble air conditioner, the heat pump water heater of this stop valve.
Background technique
Adopt O-ring seals in existing stop valve, when stop valve is in opening state, sealed by O-ring seals between spool and valve core movement passage.When air-conditioning to be changed and in other situation in work and off working state, residing for stop valve, the difference variation of environment is large, O-ring seals is easy deformation failure under cold fluid and hot fluid alternating action repeatedly, thus causes the sealability of stop valve to decline, and causes the unfavorable condition of fluid leakage to occur.In addition; when stop valve is in closed condition; the hard sealing means relying on the conical surface of spool and the conical surface of valve body mutually to extrude realizes sealing; but due to the restriction of accuracy of manufacturing; the conical surface of valve body often there will be the flaw such as micropore, small gap; cause between the conical surface of spool and the conical surface of valve body and there is gap, cause sealability to decline.
Summary of the invention
For overcoming the deficiencies in the prior art, main purpose of the present invention is to provide and is not a kind ofly vulnerable to cold fluid and hot fluid alternating action and produces the shut off valve seal of deformation failure.
Another object of the present invention is to provide a kind of being assembled with and not easily produces the stop valve of the shut off valve seal of deformation failure by cold fluid and hot fluid alternating action.
Another object of the present invention is to provide and is a kind ofly assembled with the cold fluid and hot fluid adverse effect that can overcome alternately and has the air conditioner of the stop valve of good seal performance.
For realizing above-mentioned main purpose, the technical solution adopted in the present invention is: a kind of shut off valve seal with the seal body be made up of elastic material, seal main body is cylindrical body, central axis along seal body is provided with a through hole, and the perisporium of seal body is provided with from perisporium outwardly convex and the first annular projection extended along the circumference of perisporium and the second annular projection.
From above scheme, first annular projection of shut off valve seal and the second annular projection provide two sealing surfaces, thus when shut off valve seal is used to sealing channel, the first annular projection and the second annular projection can play effect passage being carried out to double seal.
Further scheme arranges first annular projection and second annular projection at perisporium respectively near two ends of seal body.As can be seen here, when shut off valve seal is used to sealing channel, first annular projection and the second annular projection are at intervals, therefore, one of them annular projection compares another annular projection by the cold fluid and hot fluid further from alternating action, make one of them annular projection not be vulnerable to the alternating action of cold fluid and hot fluid, improve the sealability of stop valve.
Further scheme is the external diameter that the external diameter of the first annular projection is greater than the second annular projection.
Further scheme is the cross section of the first annular projection is semicircle, and the cross section of the second annular projection is half elliptic.Therefore, when on the spool that shut off valve seal is mounted to stop valve, the surface of contact with the first annular projection of semi-circular cross-section and valve body internal passage is less, thus when operating spool to make it move in valve body internal passage, can reduce friction, time saving and energy saving.
For realizing another object above-mentioned, the technical solution adopted in the present invention is: a kind of stop valve, and this stop valve has a valve body, is provided with first passage, second channel and third channel in valve body.In third channel, arrange a movable spool, the perisporium of spool is provided with the groove that a circumference along spool extends, can opens or close the connection between first passage and second channel by the motion of spool in third channel.This stop valve also has a shut off valve seal, this shut off valve seal comprises that be made up of elastic material, cylindrical seal body, central axis along seal body is provided with one for being sleeved on the through hole on groove, and shut off valve seal and third channel are interference fit.The perisporium of seal body is provided with from perisporium outwardly convex and the first annular projection extended along the circumference of perisporium and the second annular projection.
From above scheme, the first annular projection of shut off valve seal and the second annular projection are that the third channel of valve body provides two sealing surfaces, thus can play effect third channel being carried out to double seal.
Further scheme arranges first annular projection and second annular projection at perisporium respectively near two ends of seal body.
Further scheme is the maximum outside diameter that the maximum outside diameter of the first annular projection is greater than the second annular projection, and in groove, the first annular projection is arranged on the side close to first passage.
Further scheme is the cross section of the first annular projection is semicircle, and the cross section of the second annular projection is half elliptic.
Further scheme is in the end of valve body first passage towards second channel, arranges first conical surface, and in the end of spool towards first passage, arranges second conical surface.Tighten the seal spool part of a cover hollow round table shape at the perisporium of second conical surface, this seal spool part has interior round table surface and outer round table surface, and interior round table surface and second conical surface fit tightly.Therefore, extrude first conical surface to realize sealing by the outer round table surface of seal spool part, the hard sealing means avoiding employing second conical surface directly mutually to extrude with first conical surface, improves sealability.
Further scheme be with the plane of the axis through seal spool part for cross section, intercept the first acute angle that the bus of second conical surface and horizontal plane formed and be greater than the second acute angle that outer round table surface and horizontal plane formed.As can be seen here, outer round table surface can be pressed on first conical surface more closely, strengthens the sealing of seal spool part to valve channel further.
For realizing an above-mentioned object again, the technical solution adopted in the present invention is: a kind of air conditioner, and this air conditioner has condenser and vaporizer.This air conditioner also has stop valve, and this stop valve has a valve body, is provided with first passage, second channel and third channel in valve body.First passage is connected with condenser, and second channel is connected with vaporizer.In third channel, arrange a movable spool, the perisporium of spool is provided with the groove that a circumference along spool extends, can opens or close the connection between first passage and second channel by the motion of spool in third channel.This stop valve also has a shut off valve seal, this shut off valve seal comprises that be made up of elastic material, cylindrical seal body, central axis along seal body is provided with one for being sleeved on the through hole on groove, and shut off valve seal and third channel are interference fit.The perisporium of seal body is provided with from perisporium outwardly convex and the first annular projection extended along the circumference of perisporium and the second annular projection.
From above scheme, first annular projection of the shut off valve seal of air conditioner and the second annular projection are that the third channel of valve body provides two sealing surfaces, thus effect third channel being carried out to double seal can be played, avoid cold fluid and hot fluid to reveal via third channel.
Further scheme arranges first annular projection and second annular projection at perisporium respectively near two ends of seal body.
Further scheme is the external diameter that the external diameter of the first annular projection is greater than the second annular projection, and the first ring-type convexity second annular projection is closer to first passage and second channel.
Further scheme is the cross section of the first annular projection is semicircle, and the cross section of the second annular projection is half elliptic.
Accompanying drawing explanation
Fig. 1 is the stereogram of shut off valve seal of the present invention;
Fig. 2 is the plan view of shut off valve seal of the present invention;
Fig. 3 is the sectional view of shut off valve seal of the present invention;
Fig. 4 is the stereogram of stop valve of the present invention;
Fig. 5 is the plan view of stop valve of the present invention;
Fig. 6 is the A-A sectional view (connection between first passage and second channel closed by stop valve) of stop valve of the present invention;
Fig. 7 is the A-A sectional view (connection between first passage and second channel opened by stop valve) of stop valve of the present invention;
Fig. 8 is the stereogram of seal spool part of the present invention;
Fig. 9 is the plan view of seal spool part of the present invention.
Embodiment
In order to make object of the present invention, technological scheme and advantage clearly understand, below in conjunction with drawings and Examples, shut off valve seal of the present invention, stop valve and air conditioner are further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
With reference to Fig. 1, shut off valve seal 1 have be made up of rubber elastomeric material, the seal body 11 of hollow circular cylinder, central axis along seal body 11 is provided with a through hole 12, seal body 11 has first end and the second end relative with first end, be provided with first annular projection 13 and one at first end, the second end is provided with the second annular projection 14.
With reference to Fig. 2, line centered by the central axis of through hole 12, the maximum outside diameter of the first annular projection 13 is greater than the maximum outside diameter of the second annular projection 14.
With reference to Fig. 3, with the plane of the central axis through seal body 11 for cross section, the cross section of the first annular projection 13 is semicircle, and the cross section of the second annular projection 14 is half elliptic.
With reference to Fig. 4 and Fig. 5, stop valve 2 between the condenser that is disposed in air conditioner or heat pump water heater and vaporizer, for closing to condenser with being communicated with of vaporizer or opening.
With reference to Fig. 6, the first passage 211 be interconnected is provided with in the valve body 21 of stop valve 2, second channel 212 and third channel 213, a spool 22 is furnished with in third channel 213, on the perisporium of spool 22 and the internal surface of third channel is respectively equipped with the screw thread cooperatively interacted, hexagon wrench is used to insert in the tapped hole 222 of spool 22 with rotational valve core, spool can be made to move in third channel 213 in the mode close to or away from first passage 211 and second channel 212 in the screw thread of third channel, realize the unlatching be communicated with and the closedown of spool 22 pairs of first passages 21 and second channel 22.The perisporium of spool 22 is provided with the groove 221 of an extension of the circumference along spool 22, shut off valve seal 1 is sleeved on groove 221 by its through hole 12 and is fixed on spool 22, and, first annular projection 13 of shut off valve seal 1 and the internal surface interference fit of the second annular projection 14 and third channel 23, thus form two sealing surfaces at the first annular projection 13 and the second annular projection 14 with the contact segment of the internal surface of third channel 23, prevent cold fluid and hot fluid from revealing via third channel 23.
First annular projection 13 to the second annular projection 14 is closer to first passage 211 and second channel 212, and namely in groove 221, the first annular projection 13 is arranged on the side close to first passage 211.And, the maximum outside diameter of the first annular projection 13 is greater than the maximum outside diameter of the second annular projection 14, therefore, compared to the second annular projection 14, the distortion that first annular projection 13 produces by the extruding of the internal surface of third channel 213 is larger, thus be fitted on the internal surface of third channel 23 more closely, for the first annular projection 13 being more vulnerable to cold fluid and hot fluid alternating action compared to the second annular projection 14, its larger elastic deformation amount can overcome certain deformation failure, improves the sealability of stop valve 2.
The cross section of the first annular projection 13 is semicircle, and the cross section of the second annular projection 14 is half elliptic.Therefore, first annular projection 13 with semi-circular cross-section is less with the surface of contact of third channel internal surface, thus with hexagon wrench rotational valve core 22 to make it move time, can reduce friction, time saving and energy saving.
With further reference to Fig. 7, first conical surface 2111 is furnished with towards the end of second channel 212 at the first passage 211 of valve body 21, the bus of second conical surface 222, first conical surface 2111 is provided with towards the end of first passage 211 and the acute angle of horizontal plane is the first sharp angle α at spool 22.The seal spool part 223 of a cover hollow round table shape is tightened at the perisporium of second conical surface 222.
With reference to Fig. 8, seal spool part 223 has interior round table surface 2231 and outer round table surface 2232, and interior round table surface 2231 is for fitting tightly with second conical surface.
With reference to Fig. 9, with the plane of the axis through seal spool part 223 for cross section, intercept the second acute angles beta that outer round table surface 2232 is formed with horizontal plane, and the second acute angles beta is less than the first sharp angle α, therefore, when spool 22 closes being communicated with between first passage with second channel, the outer round table surface 2232 of seal spool part 223 is closely pressed on first conical surface, the hard sealing means avoiding employing second conical surface directly mutually to extrude with first conical surface, improves sealability.
For the air conditioner of stop valve and the heat pump water heater that are assembled with the present embodiment shut off valve seal, because the structure of stop valve and shut off valve seal is described in detail in the preceding article, repeat no longer one by one herein.The condenser of air conditioner is connected with the first passage of stop valve, and the vaporizer of air conditioner is connected with the second channel of stop valve by connecting passage, and third channel directly communicates with air.The connection between first passage and second channel can be opened or close to the motion of spool in third channel of stop valve, and the first annular projection of the shut off valve seal in stop valve and the second annular projection can carry out double seal to third channel, the adverse effect that alternately cold fluid and hot fluid declines to the sealability that shut off valve seal brings can be reduced, and avoid cold fluid and hot fluid to reveal via third channel.Fitted by the extruding of the outer round table surface of seal spool part and first conical surface of valve body, avoid the hard sealing means adopting second conical surface of spool, first conical surface that is direct and first passage mutually to extrude, improve the sealing between spool and first passage.
The above embodiment only have expressed preferred forms of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (9)
1. shut off valve seal, comprising:
The seal body be made up of elastic material, described seal body is cylindrical body, and the central axis along described seal body is provided with through hole;
It is characterized in that:
The perisporium of described seal body is provided with from described perisporium outwardly convex and the first annular projection extended along the circumference of described perisporium and the second annular projection.
2. shut off valve seal according to claim 1, is characterized in that:
Described first annular projection and described second annular projection are separately positioned on two ends of described perisporium near described seal body.
3. shut off valve seal according to claim 1, is characterized in that:
The external diameter of described first annular projection is greater than the external diameter of described second annular projection.
4. the shut off valve seal according to any one of claims 1 to 3, is characterized in that:
The cross section of described first annular projection is semicircle, and the cross section of described second annular projection is half elliptic.
5. a stop valve, comprising:
Valve body, is provided with the first passage, second channel and the third channel that are interconnected in described valve body;
Spool, the perisporium of described spool has a groove extended along the circumference of described spool, described spool is arranged in described third channel movingly, for opening or close the connection between described first passage and described second channel;
Shut off valve seal, described shut off valve seal is sleeved on described groove by described through hole for the shut off valve seal described in any one of claim 1-4, described shut off valve seal, described shut off valve seal and described third channel interference fit.
6. stop valve according to claim 5, is characterized in that:
Described first passage is provided with first conical surface towards the side of described second channel;
Described spool is provided with second conical surface towards the end of described first passage;
Also comprise the seal spool part of hollow round table shape, described seal spool part has interior round table surface and outer round table surface, and described interior round table surface is tightly placed on the perisporium of described second conical surface.
7. stop valve according to claim 6, is characterized in that:
With the plane of the axis through described seal spool part for cross section, the first acute angle that the bus of described first conical surface and horizontal plane are formed is greater than the second acute angle that the bus of described outer round table surface and horizontal plane are formed.
8. an air conditioner, comprises vaporizer, condenser and stop valve, and described stop valve is the stop valve described in any one of claim 5-7.
9. a heat pump water heater, comprises vaporizer, condenser and stop valve, and described stop valve is the stop valve described in any one of claim 5-7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310341676.2A CN104344072A (en) | 2013-08-07 | 2013-08-07 | Check valve sealing component, check valve, air conditioner and heat pump water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310341676.2A CN104344072A (en) | 2013-08-07 | 2013-08-07 | Check valve sealing component, check valve, air conditioner and heat pump water heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104344072A true CN104344072A (en) | 2015-02-11 |
Family
ID=52500276
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310341676.2A Pending CN104344072A (en) | 2013-08-07 | 2013-08-07 | Check valve sealing component, check valve, air conditioner and heat pump water heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104344072A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107504244A (en) * | 2017-09-28 | 2017-12-22 | 苏州优力克流体控制科技有限公司 | A kind of seal nipple being used between valve body and bonnet |
| CN108253187A (en) * | 2018-01-11 | 2018-07-06 | 广东万家乐燃气具有限公司 | Water heater and water filling automatic cut-off method |
| EP3232098A4 (en) * | 2015-04-03 | 2018-08-22 | GD Midea Heating & Ventilating Equipment Co., Ltd. | Stop valve and air conditioner having same |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09138037A (en) * | 1995-11-16 | 1997-05-27 | Daikin Ind Ltd | Closing valve and blind cap thereof |
| CN201818788U (en) * | 2010-07-22 | 2011-05-04 | 大连理工大学 | Elastic rubber two-way sealing ring |
| CN202176741U (en) * | 2011-08-31 | 2012-03-28 | Tcl空调器(中山)有限公司 | Stop valve |
| CN202470001U (en) * | 2011-12-31 | 2012-10-03 | 北京三昌橡胶制品有限公司 | Sealing cap |
| CN202646739U (en) * | 2012-05-25 | 2013-01-02 | Tcl空调器(中山)有限公司 | Stop valve |
| CN202674326U (en) * | 2012-06-29 | 2013-01-16 | 盾安（芜湖）中元自控有限公司 | Air conditioning cut-off valve for refrigeration system |
| CN202790569U (en) * | 2012-08-17 | 2013-03-13 | 盾安（芜湖）中元自控有限公司 | Air-conditioning stop valve |
-
2013
- 2013-08-07 CN CN201310341676.2A patent/CN104344072A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09138037A (en) * | 1995-11-16 | 1997-05-27 | Daikin Ind Ltd | Closing valve and blind cap thereof |
| CN201818788U (en) * | 2010-07-22 | 2011-05-04 | 大连理工大学 | Elastic rubber two-way sealing ring |
| CN202176741U (en) * | 2011-08-31 | 2012-03-28 | Tcl空调器(中山)有限公司 | Stop valve |
| CN202470001U (en) * | 2011-12-31 | 2012-10-03 | 北京三昌橡胶制品有限公司 | Sealing cap |
| CN202646739U (en) * | 2012-05-25 | 2013-01-02 | Tcl空调器(中山)有限公司 | Stop valve |
| CN202674326U (en) * | 2012-06-29 | 2013-01-16 | 盾安（芜湖）中元自控有限公司 | Air conditioning cut-off valve for refrigeration system |
| CN202790569U (en) * | 2012-08-17 | 2013-03-13 | 盾安（芜湖）中元自控有限公司 | Air-conditioning stop valve |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3232098A4 (en) * | 2015-04-03 | 2018-08-22 | GD Midea Heating & Ventilating Equipment Co., Ltd. | Stop valve and air conditioner having same |
| CN107504244A (en) * | 2017-09-28 | 2017-12-22 | 苏州优力克流体控制科技有限公司 | A kind of seal nipple being used between valve body and bonnet |
| CN107504244B (en) * | 2017-09-28 | 2023-08-25 | 苏州优力克流体控制科技有限公司 | Sealing joint used between valve body and valve cover |
| CN108253187A (en) * | 2018-01-11 | 2018-07-06 | 广东万家乐燃气具有限公司 | Water heater and water filling automatic cut-off method |
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Application publication date: 20150211 |
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