CN218543207U - Closed heat-preservation butterfly valve with cold bridge - Google Patents
Closed heat-preservation butterfly valve with cold bridge Download PDFInfo
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- CN218543207U CN218543207U CN202222988084.7U CN202222988084U CN218543207U CN 218543207 U CN218543207 U CN 218543207U CN 202222988084 U CN202222988084 U CN 202222988084U CN 218543207 U CN218543207 U CN 218543207U
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Abstract
The utility model provides an airtight heat preservation butterfly valve with disconnected cold bridge relates to refrigeration, ventilation and prevents the technical field of discharging fume. The closed heat-preservation butterfly valve with the cold-breaking bridge comprises a valve body, a valve plate, a connecting rod assembly and a valve seat assembly, wherein an airflow channel is formed inside the valve body, and a first heat-preservation material is arranged outside the valve body. At least one side of the valve plate is provided with a second heat-insulating material. The connecting rod assembly is located one side of the valve plate, and the valve seat assembly is located the other side of the valve plate. The inner wall of the valve body is provided with a first cold insulation piece, and the first cold insulation piece is located between the valve seat assembly and the second connecting port. The utility model provides a heat preservation butterfly valve is provided with first insulation material in the outside of valve body, is provided with second insulation material in at least one side of valve plate, and the inner wall of valve body is provided with first cold insulation piece. Through the arrangement, the whole heat insulation performance of the airtight heat insulation butterfly valve can be improved, the function of a cold bridge is realized, the phenomena of dewing and frosting at the joint of the airtight heat insulation butterfly valve and the ventilation pipeline are avoided, and the energy consumption is reduced.
Description
Technical Field
The utility model relates to a refrigeration, ventilation and prevent technical field that discharges fume especially relate to an airtight heat preservation butterfly valve with disconnected cold bridge.
Background
In the fields of cold chain logistics and food processing, ventilation and air conditioning systems are widely applied. Such as: in order to ensure the freshness of the fruits and vegetables stored in the refrigerated chamber, the refrigerated chamber needs to be ventilated periodically. The sorting area has a large number of workers, and outdoor fresh air needs to be fed into the sorting area so as to meet the minimum fresh air quantity required by the workers. And a smoke exhaust system is arranged in the low-temperature room and the evacuation walkway.
In both the cold storage room and the sorting area, ventilating ducts and air openings are required to extend into the room. Due to the large temperature difference between the indoor and the outdoor, the ventilation pipeline and the air port are easy to generate dewing phenomenon. The current commonly used anti-dewing measure is to arrange an electric closed valve at the junction position of the indoor and the outdoor and on the galvanized ventilating duct near the outer wall of the sorting area. The electric sealing valve is opened during ventilation, smoke exhaust and fresh air supply. Normally, the electric closed valve is closed to prevent outdoor air from largely permeating into the low-temperature area. Because the iron pipe and the electric valve are made of metal materials, the heat conductivity coefficient can reach 80W/m.K, and an obvious cold bridge effect can be formed. The cold quantity is rapidly transmitted in a large quantity at the cold bridge, so that the energy consumption of the refrigerating system is greatly increased. The temperature of the inner wall and the outer wall of the pipeline is lower than the dew point of air, and the phenomena of condensation and icing can occur inside and outside the pipeline.
The existing butterfly valve in the market is a multi-blade butterfly valve, and the valve plate and the valve body are made of steel. The joints between the butterfly valve plate and the valve seat assembly and between the ventilating pipeline and the valve body have poor sealing performance and poor heat insulation performance. The air current can permeate through the gap between the valve plate and the valve seat assembly and the gap between the ventilation pipeline and the valve body, and cold energy can be conducted through the valve plate and the valve body. The existing butterfly valve can not realize the cold bridge cutoff effect at the joint of the butterfly valve and the ventilation pipeline, the airtightness between the valve plate and the valve seat assembly and between the ventilation pipeline and the valve body is poor, heat preservation is avoided, and the phenomena of frosting and dewing are inevitably generated.
SUMMERY OF THE UTILITY MODEL
The utility model provides an airtight heat preservation butterfly valve with disconnected cold bridge for the heat insulating ability of solving conventional butterfly valve among the prior art is poor, can't realize disconnected cold bridge function, and the technical problem that the difference in temperature dewfall, frosting when big.
The utility model provides an airtight heat preservation butterfly valve with disconnected cold bridge, include:
the heat insulation valve comprises a valve body, wherein an airflow channel is formed inside the valve body, a first heat insulation material is arranged outside the valve body, a first connecting port is formed at one end of the valve body, and a second connecting port is formed at the other end of the valve body;
the valve plate is movably arranged in the valve body, and at least one side of the valve plate is provided with a second heat-insulating material;
the connecting rod assembly is arranged inside the valve body and is positioned on one side of the valve plate; the connecting rod assembly is movably connected with the valve plate;
the valve seat assembly is arranged in the valve body and is positioned on the other side of the valve plate; the inner wall of the valve body is provided with a first cold insulation piece, and the first cold insulation piece is located between the valve seat assembly and the second connecting port.
According to the utility model provides a pair of airtight heat preservation butterfly valve with disconnected cold bridge, the disk seat subassembly includes:
the valve seat body is connected with the inner wall of the valve body and is suitable for being matched with the valve plate in a sealing mode.
According to the utility model provides a pair of airtight heat preservation butterfly valve with disconnected cold bridge, the disk seat body orientation one side of valve plate is provided with sealed the pad.
According to the utility model provides a pair of airtight heat preservation butterfly valve with disconnected cold bridge, the disk seat subassembly still includes:
and the second cold insulation piece is arranged on one side of the valve seat body, which deviates from the valve plate.
According to the utility model provides a pair of airtight heat preservation butterfly valve with disconnected cold bridge, the second separate cold piece bond in the disk seat body deviates from one side of valve plate.
According to the utility model provides a pair of airtight heat preservation butterfly valve with disconnected cold bridge, first connector is provided with first flange, the second connector is provided with the second flange.
According to the utility model provides a pair of airtight heat preservation butterfly valve with disconnected cold bridge, first cold piece that keeps apart is close to the side of valve seat subassembly pass through the fastener with the interior wall connection of valve body, first cold piece that keeps apart is kept away from the side of valve seat subassembly pass through the fastener with second flange joint.
According to the utility model provides a pair of airtight heat preservation butterfly valve with disconnected cold bridge, the inner wall of valve body is provided with the recess, first cold-proof piece inlays to be located in the recess.
According to the utility model provides a pair of airtight heat preservation butterfly valve with disconnected cold bridge, first heat preservation material with second heat preservation material's material is polyurethane, rubber and plastic, rock wool or glass cotton, first heat preservation material with second heat preservation material's thickness is 10mm-200mm.
According to the utility model provides a pair of airtight heat preservation butterfly valve with disconnected cold bridge, the material of first cold proof piece is fine cloth of rubber glass, glass steel, nylon or porous ceramic, the width of first heat preservation piece is 2cm-10cm.
The utility model provides an airtight heat preservation butterfly valve with disconnected cold bridge is provided with first insulation material in the outside of valve body, is provided with second insulation material in at least one side of valve plate, and the inner wall of valve body is provided with first cold insulation piece. Through the arrangement, the whole heat insulation performance of the airtight heat insulation butterfly valve can be improved, the function of a cold bridge is realized, the phenomena of dewing and frosting at the joint of the airtight heat insulation butterfly valve and the ventilation pipeline are avoided, and the energy consumption is reduced.
Drawings
In order to more clearly illustrate the technical solutions of the present invention or the prior art, the following briefly introduces the drawings required for the embodiments or the prior art descriptions, and obviously, the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic side view of a cross-sectional structure of a closed thermal butterfly valve with a cold bridge according to an embodiment of the present invention;
fig. 2 is a schematic view of the structure of the sealed heat-preservation butterfly valve with the cold bridge according to the embodiment of the present invention.
Reference numerals:
100. a valve body; 110. a first protective shell 120, a first thermal insulation material; 200. a valve plate; 210. a second protective shell 220, a second thermal insulation material; 300. a connecting rod assembly; 310. a fixing member; 320. a rotating shaft; 330. a connecting rod; 340. a first connecting member; 350. a second connecting member; 360. a third connecting member; 400. a valve seat assembly; 410. a first cold insulating member; 420. a valve seat body; 421. a gasket; 430. a second cold-proof member; 500. a first flange; 600. a second flange.
Detailed Description
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings, and are only for convenience of description of the embodiments and for simplicity of description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the embodiments of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the embodiments of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "connected" and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the embodiments of the present invention can be understood as specific cases to those of ordinary skill in the art.
In embodiments of the invention, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "above," and "over" a second feature may be directly on or obliquely above the second feature, or simply mean that the first feature is at a higher level than the second feature. A first feature "under," "beneath," and "under" a second feature may be directly under or obliquely under the second feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of an embodiment of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
The present invention will be described with reference to fig. 1-2, wherein the present invention relates to a closed thermal insulation butterfly valve with a cold bridge.
Fig. 1 illustrates the sectional structure schematic diagram that looks sideways of the airtight heat preservation butterfly valve with cold bridge breaks that the embodiment of the utility model provides a, fig. 2 illustrates the utility model provides a structural schematic diagram is looked mainly to airtight heat preservation butterfly valve with cold bridge breaks that provides. As shown in fig. 1 and fig. 2, the embodiment of the present invention provides a hermetic butterfly valve with a cold bridge cut-off structure, which includes a valve body 100, a valve plate 200, a connecting rod assembly 300, and a valve seat assembly 400. The interior of the valve body 100 forms an air flow passage, and the exterior of the valve body 100 is provided with a first insulating material 120. The valve body 100 has a first connection port formed at one end thereof and a second connection port formed at the other end thereof. Valve plate 200 is movably disposed inside valve body 100, and at least one side of valve plate 200 is provided with second thermal insulation material 220, and second thermal insulation material 220 is located on the other side of valve plate 200 in this embodiment, that is, the side of valve plate 200 facing the second connection port. The connecting rod assembly 300 is disposed inside the valve body 100 and is located at one side of the valve plate 200; the connecting rod assembly 300 is movably connected to the valve plate 200. The valve seat assembly 400 is disposed inside the valve body 100 and on the other side of the valve plate 200. The inner wall of the valve body 100 is provided with a first adiabatic member 410, and the first adiabatic member 410 is located between the valve seat assembly 400 and the second connection port.
The utility model provides an airtight heat preservation butterfly valve with disconnected cold bridge is provided with first insulation material 120 in the outside of valve body 100, is provided with second insulation material 220 at the opposite side of valve plate 200, and the inner wall of valve body 100 is provided with first cold insulation piece 410. Through the arrangement, the whole heat insulation performance of the airtight heat insulation butterfly valve can be improved, the function of a cold bridge is realized, the phenomena of dewing and frosting at the joint of the airtight heat insulation butterfly valve and the ventilation pipeline are avoided, and the energy consumption is reduced.
It should be noted here that the second thermal insulation material 220 may also be disposed on one side of the valve plate 200, that is, the side of the valve plate 200 facing the first connection port.
The embodiment of the utility model provides a closed heat preservation butterfly valve with disconnected cold bridge can be used to low temperature of-30-20 ℃ to discharge fume, air conditioner and ventilation place. The closed heat-preservation butterfly valve is used for a refrigeration house, a laboratory, a ski field and public or industrial buildings in cold regions, solves the problems of frosting and dewing at the joint of a ventilating duct and the closed heat-preservation butterfly valve, and improves the mildew phenomenon caused by dewing at partial positions.
In the embodiment of the present invention, the first thermal insulation material 120 is provided with a first protection shell 110 on the outside, and the material of the first protection shell 110 is metal or plastic.
In the embodiment of the present invention, one side of the second thermal insulation material 220 departing from the valve plate 200 is provided with a second protective shell 210, the second protective shell 210 is made of metal or plastic, and the preferred is a galvanized steel plate with a thickness of 0.3mm to 0.5 mm. The second protective shell 210 protects and fixes the second thermal insulation material 220.
In an embodiment of the present invention, the connecting rod assembly 300 includes a fixing member 310, a rotating shaft 320, a connecting rod 330, two first connecting members 340, two second connecting members 350, and two third connecting members 360. The first end of the rotating shaft 320 is rotatably connected to the valve body 100, and the second end of the rotating shaft 320 is rotatably connected to the valve body 100. The end of the second end of the rotary shaft 320 is connected to the driving member after passing through the valve body 100. A first end of the fixing member 310 is coupled to the valve body 100, and a second end of the fixing member 310 is rotatably coupled to a middle portion of the rotation shaft 320. The two second connecting members 350 are disposed at intervals, first ends of the two second connecting members 350 are connected to the valve body 100, respectively, and the first ends of the two second connecting members 350 and the valve plate 200 may be welded or integrally formed. The second ends of the two second connecting members 350 are rotatably connected with the two ends of the connecting rod 330 in a one-to-one correspondence manner. The two first connecting pieces 340 are arranged at intervals, the first ends of the two first connecting pieces 340 are fixedly sleeved on the rotating shaft 320, and the second ends of the two first connecting pieces 340 are rotatably connected with the middle parts of the two second connecting pieces 350 in a one-to-one correspondence manner. The two third connecting members 360 are spaced apart from each other, and the two third connecting members 360 are located between the two second connecting members 350. First ends of the two third connecting members 360 are rotatably connected to the connecting rod 330, and second ends of the two third connecting members 360 are rotatably connected to the second end of the fixing member 310.
The connecting rod assembly 300 effects opening and closing of the valve plate 200 by driving of the driving member. The driving piece can be a motor or a handle. As shown in fig. 1, when the hermetic heat-preservation butterfly valve needs to be opened, the driving member drives the valve plate 200 to translate left through the connecting rod assembly 300, and moves left to meet the requirement of the turning space of the valve plate 200 and then rotates 90 ° counterclockwise. When the valve plate 200 is parallel to the ventilation pipeline, the closed heat-preservation butterfly valve is in a full-open state. When the airtight heat preservation butterfly valve needs to be closed, the driving piece drives the valve plate 200 to rotate 90 degrees clockwise firstly through the connecting rod assembly 300, and then the valve plate 200 is rotated to be perpendicular to the ventilation pipeline and then translated rightwards. And the valve plate 200 is contacted with the valve seat assembly 400 until the valve plate is tightly pressed, and the closed heat-preservation butterfly valve is completely closed.
The utility model discloses an in the embodiment, airtight heat preservation butterfly valve can be in electronic airtight heat preservation butterfly valve, the airtight heat preservation butterfly valve of pneumatic and the manual airtight heat preservation butterfly valve of holding.
When the sealed heat-preservation butterfly valve is an electric sealed heat-preservation butterfly valve, the electric execution assembly is matched with the connecting rod assembly 300 to realize angle adjustment of the valve plate 200, so that the sealed heat-preservation butterfly valve is opened and closed. The electric actuator assembly may be a servo motor in order to improve the accuracy of the angular adjustment of the valve plate 200.
When the closed heat-preservation butterfly valve with the cold-breaking bridge is a pneumatic closed heat-preservation butterfly valve or a manual closed heat-preservation butterfly valve, compressed air or a person rotates through the handle to provide power for the connecting rod assembly 300.
In the embodiment of the present invention, the cross-sectional shape of the joint of the valve body 100 and the ventilation duct may be rectangular or circular, so that the airtight heat-preservation butterfly valve may be applied to the rectangular ventilation duct or the circular ventilation duct.
In the embodiment of the present invention, the valve plate 200 may be rectangular or circular so that the airtight heat-insulating butterfly valve is applied to a rectangular ventilation duct or a circular ventilation duct.
The utility model discloses an embodiment, the thickness of valve plate 200 can set up different thickness according to airtight heat preservation butterfly valve service condition difference. The thicker the valve plate 200 is, the less the cold quantity conducted through the valve plate 200 is, and the better the sealing and heat-insulating performance of the sealed heat-insulating butterfly valve is.
The embodiment of the present invention provides an angle adjustment of the valve plate 200 can be realized around the rotation of the axis in the valve seat assembly 400, and also can be realized around the rotation of the axis outside the valve seat assembly 400.
In an embodiment of the present invention, the second connection port is located at an indoor side. The first cold insulation piece 410 is arranged between the valve seat assembly 400 and the second connecting port, so that the heat conduction resistance of the connecting position of the ventilation pipeline and the closed heat insulation butterfly valve is increased, and the heat conduction of the connecting position of the ventilation pipeline and the closed heat insulation butterfly valve is cut off.
In an embodiment of the present invention, the first heat insulating member 410 has a length of 2-10cm between the valve seat assembly 400 and the second connection port. The length of the first cold shut member 410 may be selected according to the actual size of the butterfly valve to be installed.
In an embodiment of the present invention, the first connection port is located at an outdoor side. A first cold-proof piece 410 is arranged between the valve seat assembly 400 and the first connecting port, so as to further increase the heat conduction resistance at the connecting part of the ventilation pipeline and the closed heat-preservation butterfly valve and cut off the heat conduction.
In an embodiment of the present invention, the valve seat assembly 400 includes a valve seat body 420. The valve seat body 420 is coupled to an inner wall of the valve body 100, and the valve seat body 420 is adapted to be sealingly engaged with the valve plate 200.
In one embodiment of the present invention, the shape of the valve seat body 420 may be rectangular, circular, or oval, etc.
The embodiment of the utility model provides an airtight heat preservation butterfly valve sealing performance is good, also can be used to the high temperature and discharge fume, air conditioner and ventilation place, realizes the function of disconnected heat bridge.
In an embodiment of the present invention, the sealing pad 421 is disposed on one side of the valve seat body 420 facing the valve plate 200. The sealing gasket 421 arranged between the valve seat body 420 and the valve plate 200 can play a role in sealing and preventing air flow permeation, and the heat insulation performance and the sealing performance of the joint of the ventilation pipeline and the sealed heat insulation butterfly valve are improved.
In an embodiment of the present invention, the sealing pad 421 may be adhered and fixed on one side of the valve seat body 420.
The utility model discloses an in an embodiment, sealed pad 421 can also be dismantled with valve seat body 420 and be connected, is convenient for in time change sealed pad 421, and the sealed pad 421 of avoiding damaging leads to sealed insulation performance to descend.
In an embodiment of the present invention, the sealing pad 421 may be a waterproof rubber pad. Because the rubber has elasticity, valve plate 200 can strengthen the sealed heat preservation performance through the extrusion rubber pad.
The embodiment of the present invention provides a waterproof rubber pad between the valve plate 200 and the valve seat body 420. When the valve plate 200 rotates to close the closed heat-preservation butterfly valve, the valve plate 200 and the valve seat body 420 are extruded and closed mutually, so that the gas flow is cut off, the heat preservation performance and the tightness of the left side and the right side of the whole closed heat-preservation butterfly valve are ensured, and the convection transfer of cold and heat is isolated.
In an embodiment of the present invention, the thickness of the sealing pad 421 may be 2-5mm.
In an embodiment of the present invention, the valve seat assembly 400 further comprises a second heat insulating member 430. The second heat insulating member 430 is disposed on a side of the valve seat body 420 facing away from the valve plate 200. The heat insulation performance of the valve seat body 420 can be enhanced by arranging the second heat insulation piece 430, and further the heat insulation performance of the airtight heat insulation butterfly valve is enhanced.
In an embodiment of the present invention, the second heat insulating member 430 is bonded to a side of the valve seat body 420 departing from the valve plate 200.
In the embodiment of the present invention, the first connection port is provided with the first flange 500, and the second connection port is provided with the second flange 600.
In an embodiment of the present invention, the first heat insulation member 410 is close to the side of the valve seat assembly 400 and connected to the inner wall of the valve body 100 by a fastening member. The first heat insulating member 410 is connected to the second flange 600 by a fastener, at a side thereof remote from the valve seat assembly 400.
In an embodiment of the present invention, the first thermal insulation member 410 may be a rubber fiberglass cloth or nylon.
In the embodiment of the utility model, the heat conductivity of the sheet iron air channel is 80W/mK, and the heat conductivity of the rubber glass fiber cloth is 0.03-0.3W/mK. The rubber glass fiber cloth is adopted as the first cold insulation piece 410, so that the heat conduction coefficient of the joint can be reduced, the heat conduction resistance of the joint is increased, and the cold quantity of the refrigerating room or the freezing room of the cooling object is effectively prevented from being transmitted outwards.
In an embodiment of the present invention, the first thermal insulation member 410 may also be a composite thermal insulation member made of rubber glass fiber cloth wrapped with thermal insulation material, so as to increase the thermal conductivity and thermal resistance at the joint of the ventilation duct and the airtight thermal insulation butterfly valve. In an embodiment of the present invention, the first heat insulation member 410 is close to the side of the valve seat assembly 400 and can be connected to the inner wall of the valve body 100 by adhesion. The first cold insulating member 410 may also be adhesively attached to the second flange 600 at a side thereof remote from the valve seat assembly 400.
In an embodiment of the present invention, the first adiabatic member 410 may be further riveted to the inner wall of the valve body 100 and the second flange 600, respectively.
In an embodiment of the present invention, the inner wall of the valve body 100 is provided with a groove, and the first heat insulation member 410 is embedded in the groove. Embedding the first adiabatic member 410 in the groove may enhance the installation stability of the first adiabatic member 410.
In an embodiment of the present invention, the first heat insulating member 410 may be glass fiber reinforced plastic or porous ceramic. Because the glass fiber reinforced plastic or the porous ceramic have certain strength, the glass fiber reinforced plastic or the porous ceramic is used as the first cold insulation piece 410, so that the connection strength between the closed heat preservation butterfly valve and the ventilation pipeline can be improved.
In an embodiment of the present invention, the first heat insulating member 410 may be detachably connected to the inner wall of the valve body 100 and the second flange 600 to ensure that the first heat insulating member 410 is easily replaced.
In the embodiment of the present invention, the first thermal insulation material 120 and the second thermal insulation material 220 are made of polyurethane, rubber, plastic, rock wool or glass wool, and the thickness of the first thermal insulation material 120 and the second thermal insulation material 220 is 10mm-200mm. The left side and the right side of the valve body have different temperatures in different application occasions, and the thickness of the heat-insulating layer of the valve plate 200 can be determined according to the application occasions.
In the embodiment of the present invention, the first heat insulation member 410 is made of a material with good heat insulation performance, such as glass fiber cloth, glass fiber reinforced plastic, nylon, or porous ceramic, the glass fiber cloth can be silicon rubber cloth or ethylene propylene diene monomer rubber cloth, and the width of the first heat insulation member 410 is 2cm-10cm.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (10)
1. The utility model provides a closed heat preservation butterfly valve with disconnected cold bridge which characterized in that includes:
the heat insulation valve comprises a valve body, wherein an airflow channel is formed inside the valve body, a first heat insulation material is arranged outside the valve body, a first connecting port is formed at one end of the valve body, and a second connecting port is formed at the other end of the valve body;
the valve plate is movably arranged in the valve body, and at least one side of the valve plate is provided with a second heat-insulating material;
the connecting rod assembly is arranged inside the valve body and is positioned on one side of the valve plate; the connecting rod assembly is movably connected with the valve plate;
the valve seat assembly is arranged in the valve body and is positioned on the other side of the valve plate; the inner wall of the valve body is provided with a first cold insulation piece, and the first cold insulation piece is located between the valve seat assembly and the second connecting port.
2. A closed thermal butterfly valve with a cold bridge shut-off according to claim 1, wherein said valve seat assembly comprises:
the valve seat body is connected with the inner wall of the valve body and is suitable for being in sealing fit with the valve plate.
3. The hermetic thermal butterfly valve with a cold bridge according to claim 2, wherein a sealing gasket is provided on a side of the valve seat body facing the valve plate.
4. The hermetic thermal butterfly valve with a cold bridge shut-off of claim 2, wherein the valve seat assembly further comprises:
the second cold insulation piece is arranged on one side, departing from the valve plate, of the valve seat body.
5. The hermetic thermal butterfly valve with a cold bridge shut-off of claim 4, wherein the second cold shut-off member is bonded to a side of the valve seat body facing away from the valve plate.
6. The hermetic thermal butterfly valve with a cold bridge according to any one of claims 1 to 5, wherein the first connection port is provided with a first flange and the second connection port is provided with a second flange.
7. The butterfly valve with a cold bridge of claim 6, wherein the first cold-proof member is attached to the inner wall of the valve body by a fastener on a side thereof adjacent to the seat assembly, and wherein the first cold-proof member is attached to the second flange by a fastener on a side thereof remote from the seat assembly.
8. The hermetic heat-preservation butterfly valve with the cold bridge according to claim 6, wherein a groove is formed in the inner wall of the valve body, and the first cold insulation piece is embedded in the groove.
9. The sealed heat-preservation butterfly valve with the cold bridge cut-off according to any one of claims 1 to 5, wherein the first heat-preservation material and the second heat-preservation material are both made of polyurethane, rubber, plastic, rock wool or glass wool, and the thickness of the first heat-preservation material and the thickness of the second heat-preservation material are both 10mm-200mm.
10. The closed thermal insulation butterfly valve with the cold bridge cut-off according to any one of claims 1 to 5, wherein the first cold insulation member is made of rubber fiberglass cloth, glass fiber reinforced plastic, nylon or porous ceramic, and the width of the first cold insulation member is 2cm-10cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222988084.7U CN218543207U (en) | 2022-11-09 | 2022-11-09 | Closed heat-preservation butterfly valve with cold bridge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222988084.7U CN218543207U (en) | 2022-11-09 | 2022-11-09 | Closed heat-preservation butterfly valve with cold bridge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218543207U true CN218543207U (en) | 2023-02-28 |
Family
ID=85261432
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222988084.7U Active CN218543207U (en) | 2022-11-09 | 2022-11-09 | Closed heat-preservation butterfly valve with cold bridge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218543207U (en) |
-
2022
- 2022-11-09 CN CN202222988084.7U patent/CN218543207U/en active Active
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