CN218152535U - High-temperature breather valve - Google Patents
High-temperature breather valve Download PDFInfo
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- CN218152535U CN218152535U CN202222686467.9U CN202222686467U CN218152535U CN 218152535 U CN218152535 U CN 218152535U CN 202222686467 U CN202222686467 U CN 202222686467U CN 218152535 U CN218152535 U CN 218152535U
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Abstract
The utility model relates to a breather valve technical field specifically is a high temperature breather valve. The device comprises a positive pressure barrel, a positive pressure valve component, a negative pressure barrel and a negative pressure valve component, wherein the positive pressure barrel is communicated with the negative pressure barrel, the lower part of the positive pressure barrel is connected with the top of a storage tank, and the positive pressure valve component is arranged at the upper part of the positive pressure barrel; a negative pressure valve assembly is arranged in the negative pressure cylinder body to communicate or isolate the negative pressure cylinder body with the atmosphere; the positive pressure cylinder, the positive pressure valve component, the negative pressure cylinder and the negative pressure valve component are all made of stainless steel. The utility model discloses a malleation part and negative pressure part independent setting, mutual noninterference, whole breather valve are the stainless steel preparation, the surperficial fine finishing, and high temperature liquid in the storage tank can not corrode and destroy it, and is anticorrosive high temperature resistant, is fit for using widely.
Description
Technical Field
The utility model belongs to the technical field of the breather valve technique and specifically relates to a high temperature breather valve is related to.
Background
The breather valve is generally used on a normal-pressure or low-pressure storage tank and is used for maintaining the air pressure balance of the storage tank and reducing the volatilization of a medium. The breather valve fully utilizes the bearing capacity of the storage tank to reduce medium discharge, and the principle is that the weight of the positive-negative pressure valve disc is utilized to control the positive exhaust pressure and the negative suction pressure of the storage tank. When the pressure of the medium in the tank is within the control operation pressure range of the breather valve, the breather valve does not work, and the airtightness of the oil tank is kept; when the medium is supplemented into the tank or the temperature rises to raise the pressure of the upper gas space in the tank to reach the operation positive pressure of the breather valve, the positive pressure valve is opened, and the gas escapes from the breather valve, so that the pressure in the tank is not continuously raised; when the medium is pumped out of the tank or the temperature is reduced, the pressure in the upper gas space in the tank is reduced, and the operating negative pressure of the breather valve is reached, the negative pressure valve of the breather valve is opened by the atmosphere outside the tank, and the external gas enters the tank, so that the pressure in the tank is not reduced any more, the pressure balance between the inside of the tank and the outside of the tank is maintained, and the safety of the storage tank is protected.
Some storage tanks have higher temperature of stored substances, particularly some storage tanks for salt solution have the temperature of 300-500 ℃, and the ion steam corrosivity of a large amount of salt in the storage tanks is higher, while the interior of the existing breather valve has a plurality of parts such as valve seats, guide sleeves and the like, and is made of nonmetal material polytetrafluoroethylene, and the normal use temperature of the polytetrafluoroethylene cannot exceed 260 ℃, so that the problem needs to be solved by a high-temperature breather valve. And because the liquid temperature in the storage tank is higher, produce steam easily and enter into the breather valve, the steam after the condensation can exert an influence to the breather valve if can not in time discharge.
SUMMERY OF THE UTILITY MODEL
In view of the above disadvantages and shortcomings of the prior art, the present invention provides a high temperature breather valve.
In order to achieve the above object, the utility model discloses a main technical scheme include:
the utility model provides a high-temperature breather valve, which comprises a positive-pressure barrel, a positive-pressure valve component, a negative-pressure barrel and a negative-pressure valve component, wherein the positive-pressure barrel is communicated with the negative-pressure barrel, the lower part of the positive-pressure barrel is connected with the top of a storage tank, and the upper part of the positive-pressure barrel is provided with the positive-pressure valve component; a negative pressure valve assembly is arranged in the negative pressure cylinder body to communicate or isolate the negative pressure cylinder body with the atmosphere; the positive pressure cylinder body, the positive pressure valve component, the negative pressure cylinder body and the negative pressure valve component are all made of stainless steel.
Further, the positive pressure valve subassembly includes malleation disk seat, malleation valve disc, malleation valve rod, malleation guide frame and linear bearing, the malleation disk seat with the top of malleation barrel is connected, the malleation valve disc sets up malleation disk seat top, the middle part of malleation valve disc with the one end of malleation valve rod is connected, the other end of malleation valve rod with on the malleation guide frame linear bearing cooperation, the malleation guide frame with the malleation barrel is fixed.
Further, the lower surface of the positive pressure valve disc is provided with a groove, and the distance between the groove and the positive pressure valve seat is 8-10mm.
Further, the positive pressure valve rod is connected with the positive pressure cylinder through the static electricity conducting component.
Further, the negative pressure valve assembly comprises a negative pressure valve seat, a negative pressure valve disc, a negative pressure valve rod, a negative pressure guide frame, a bottom plate and a linear bearing, the negative pressure valve seat is connected with the negative pressure barrel through the bottom plate, the negative pressure valve disc is arranged at the top of the negative pressure valve seat, the middle of the negative pressure valve disc is connected with one end of the negative pressure valve rod, the other end of the negative pressure valve rod is matched with the linear bearing arranged in the negative pressure guide frame, and the negative pressure guide frame is fixedly connected with the upper cover arranged at the top of the negative pressure barrel.
Further, the upper surface of the bottom plate is higher than the lower surface of the inner wall of the communication pipeline of the positive pressure cylinder and the negative pressure cylinder.
Furthermore, the upper surface of the negative pressure valve disc is of an arc structure with a high middle part and a low periphery.
Further, the side wall of the negative pressure guide frame is provided with a vent hole.
Further, the negative pressure valve rod is connected with the negative pressure cylinder through a static electricity conducting assembly.
Further, a mesh enclosure is arranged at the position where the bottom of the negative pressure cylinder is communicated with the atmosphere.
The utility model has the advantages that: the utility model discloses a malleation part and negative pressure part independent setting, mutual noninterference, negative pressure disk seat and malleation disk seat are the stainless steel preparation, the meticulous processing in surface, and high temperature liquid in the storage tank can not corrode and destroy it. The linear bearings are respectively arranged in the negative pressure guide frame and the positive pressure guide frame, and the two linear bearings are respectively in close fit with the positive pressure valve rod and the negative pressure valve rod, so that the positive pressure valve rod and the negative pressure valve rod can move up and down smoothly in a vertical mode, radial deviation and verticality change can be avoided, and the positive pressure valve disk and the positive pressure valve seat, and the negative pressure valve disk and the negative pressure valve seat can be always in surface-to-surface simultaneous contact and separated simultaneously when being opened and closed. The negative pressure guide frame is provided with a vent hole, so that air damping in the negative pressure guide frame is eliminated when the negative pressure valve rod moves up and down. The upper surface of the bottom plate is higher than the lower surface of the inner wall of the communicating pipeline of the positive pressure cylinder and the negative pressure cylinder, so that the condensate can conveniently flow back. The static electricity conducting assembly can conduct away air flow in time, static electricity generated when the positive pressure valve rod, the negative pressure valve rod and the linear bearing move relatively can meet the explosion-proof requirement of the petroleum storage tank. The whole breather valve is made of all-metal materials, is corrosion-resistant and high-temperature-resistant, and is suitable for popularization and use.
Drawings
FIG. 1 is a schematic structural view of a high temperature breather valve according to the present invention;
fig. 2 is an enlarged view of the negative pressure guide of the present invention.
In the figure: 1. a positive pressure cylinder; 2. a negative pressure cylinder; 3. a flange; 4. a positive pressure valve seat; 5. a positive pressure valve disc; 6. a positive pressure valve stem; 7. a positive pressure guide frame; 8. a linear bearing; 9. a groove; 10. a static conductive component; 11. a negative pressure valve seat; 12. a negative pressure valve disc; 13. a negative pressure valve stem; 14. a negative pressure guide frame; 15. a base plate; 16. an upper cover; 17. a vent hole; 18. a mesh enclosure; 19. and (4) a cross support.
Detailed Description
For a better understanding of the present invention, reference will now be made in detail to the present invention, examples of which are illustrated in the accompanying drawings.
Example (b):
the present invention will be described in detail with reference to the accompanying drawings:
as shown in fig. 1 and 2, the present invention provides a high temperature breather valve. The breather valve comprises a positive pressure cylinder body 1, a positive pressure valve component, a negative pressure cylinder body 2 and a negative pressure valve component. The lower part of the positive pressure cylinder body 1 is fixedly connected with the top of the storage tank through a flange 3, so that the positive pressure cylinder body 1 is communicated with the storage tank. The upper part of the positive pressure cylinder 1 is provided with a positive pressure valve component to communicate or isolate the positive pressure cylinder 1 with the atmosphere. The positive pressure cylinder 1 is communicated with the negative pressure cylinder 2, and a negative pressure valve component is arranged in the negative pressure cylinder 2 so as to communicate or isolate the negative pressure cylinder 2 with the atmosphere. The positive pressure cylinder body 1, the positive pressure valve component, the negative pressure cylinder body 2 and the negative pressure valve component are all made of stainless steel, so that the breather valve can be normally used at high temperature.
Wherein, positive pressure valve subassembly includes positive pressure disk seat 4, positive pressure valve disk 5, positive pressure valve rod 6, positive pressure leading truck 7 and linear bearing 8. The positive pressure valve seat 4 is fixedly connected with the top of the positive pressure cylinder 1, the positive pressure valve disc 5 is arranged on the top of the positive pressure valve seat 4, and the positive pressure valve disc 5 can move up and down relative to the positive pressure valve seat 4. The middle part of the positive pressure valve disc 5 is connected with one end of the positive pressure valve rod 6 through a bolt, the other end of the positive pressure valve rod 6 is matched with the linear bearing 8 on the positive pressure guide frame 7, and the positive pressure valve rod 6 moves up and down relative to the linear bearing 8 so as to drive the positive pressure valve disc 5 to move up and down. The linear bearing 8 can ensure that the vertical up-and-down motion of the positive pressure valve rod 6 is smooth and has no radial deviation and verticality change, so that the positive pressure valve disc 5 is in close contact with the positive pressure valve seat 4, and gas leakage in the storage tank cannot be caused. The surface of the contact part of the positive pressure valve disc 5 and the positive pressure valve seat 4 is finely processed, so that the sealing is complete under the condition of non-opening, no leakage is caused, and the national standard requirement is met. The positive pressure guide frame 7 is fixed with the positive pressure cylinder body 1, the positive pressure guide frame 7 can be of a cylindrical cylinder structure, a through hole used for installing the linear bearing 8 is formed in the middle of the positive pressure guide frame 7, and the periphery of the positive pressure guide frame 7 can be fixed with the positive pressure cylinder body 1 through a cross support 19 composed of four thin plates. The cross support 19 can ensure the space communication of the upper part and the lower part of the positive pressure guide frame 7, so that the positive pressure valve rod 6 can move smoothly in the linear bearing 8.
Specifically, the lower surface of the positive pressure valve disc 5 is provided with a groove 9, and the distance between the groove 9 and the positive pressure valve seat 4 is 8-10mm, so that the condensate can be prevented from flowing onto the positive pressure valve seat 4 and interfering the opening and closing of the positive pressure valve disc 5.
Specifically, the positive pressure valve rod 6 is connected with the positive pressure cylinder 1 through a static electricity conducting component 10, and the static electricity conducting component 10 may be a metal spring wire.
The negative pressure valve assembly comprises a negative pressure valve seat 11, a negative pressure valve disc 12, a negative pressure valve rod 13, a negative pressure guide frame 14, a bottom plate 15 and a linear bearing 8. The negative pressure valve seat 11 is connected with the negative pressure cylinder 2 through a bottom plate 15, the bottom plate 15 is of a circular ring structure, an inner ring of the bottom plate 15 is fixedly connected with the lower part of the negative pressure valve seat 11, and an outer ring of the bottom plate 15 is fixedly connected with the negative pressure cylinder 2. The negative pressure valve disk 12 is disposed on top of the negative pressure valve seat 11, and the negative pressure valve disk 12 is movable up and down relative to the negative pressure valve seat 11. The middle part of the negative pressure valve disc 12 is connected with one end of a negative pressure valve rod 13 through a bolt, the other end of the negative pressure valve rod 13 is matched with the linear bearing 8 arranged in the negative pressure guide frame 14, and the negative pressure valve rod 13 moves up and down relative to the linear bearing 8 so as to drive the negative pressure valve disc 12 to move up and down. The linear bearing 8 can ensure that the vertical up-and-down motion of the negative pressure valve rod 13 is smooth, and radial deviation and verticality change are avoided, so that the negative pressure valve disc 12 is in close contact with the negative pressure valve seat 11, and gas leakage in the storage tank is avoided. The surface of the contact part of the negative pressure valve disc 12 and the negative pressure valve seat 11 is finely processed, so that the sealing is complete under the condition of non-opening, no leakage is caused, and the national standard requirement is met. The negative pressure guide frame 14 is fixedly connected with an upper cover 16 arranged at the top of the negative pressure cylinder body 2, and the upper cover 16 is fixed with the top of the negative pressure cylinder body 2 through bolts. The negative pressure guide frame 14 is a hollow cylinder structure with an opening at the lower part, the linear bearing 8 is arranged inside the lower part of the negative pressure guide frame 14, the side wall of the negative pressure guide frame 14, which is positioned in the negative pressure cylinder 2, is provided with a vent hole 17, and the vent hole 17 can eliminate air damping in the negative pressure guide frame 14 when the negative pressure valve rod 13 moves up and down.
Specifically, the upper surface of the bottom plate 15 is higher than the lower surface of the inner wall of the communicating pipeline of the positive pressure cylinder 1 and the negative pressure cylinder 2, so that the condensate can conveniently flow back.
Specifically, the upper surface of the negative pressure valve disc 12 is of an arc structure with a high middle part and a low periphery, so that condensate is prevented from being accumulated, and the opening precision of the negative pressure valve disc 12 is prevented from being influenced.
Specifically, the negative pressure valve rod 13 is connected with the negative pressure cylinder 2 through the static electricity conducting assembly 10, and the static electricity conducting assembly 10 may be a metal spring wire.
Specifically, the mesh enclosure 18 is arranged at the bottom of the negative pressure cylinder 2 and communicated with the atmosphere, so that impurities in the air can be filtered, and the impurities are prevented from entering the storage tank.
The utility model discloses at the during operation, the high temperature breather valve is installed at the storage tank top, is in airtight state at ordinary times, keeps the seal of storage tank. When the medium is supplemented into the storage tank or the air temperature rises, the pressure of the upper gas space in the storage tank rises, and the negative pressure valve disc 12 bears the downward pressure of the gas in the tank on the negative pressure valve disc 12. When upper portion gas pressure is greater than the operation malleation of breather valve in the storage tank, the ascending pressure of storage tank internal gas to positive pressure valve disc 5 is greater than the decurrent gravity of positive pressure valve disc 5, positive pressure valve disc 5 opens, gaseous exhaling from the exhaling port of breather valve, make storage tank internal pressure no longer continue to increase, when the internal gas pressure of storage tank is less than the operation malleation of breather valve, the 5 gravity of positive pressure valve disc this moment is greater than storage tank internal gas to the ascending pressure of positive pressure valve disc 5, 5 playback of positive pressure valve disc, the breather valve is closed, the storage tank returns to airtight state again. When the medium is pumped out of the storage tank or the temperature is reduced, the pressure of the upper gas space in the storage tank is reduced, and the operation negative pressure of the breather valve is reached, the upward pressure of the gas outside the storage tank to the negative pressure valve disc 12 is greater than the downward gravity of the negative pressure valve disc 12, the negative pressure valve disc 12 is opened, the external gas enters the storage tank from the breather valve, so that the pressure in the storage tank is not reduced continuously until the gas pressure in the storage tank is greater than the operation negative pressure of the breather valve, at the moment, the gravity of the negative pressure valve disc 12 is greater than the upward pressure of the gas in the storage tank to the negative pressure valve disc 12, the negative pressure valve disc 12 returns to the original position, the breather valve is closed, the storage tank returns to the closed state, and further the pressure balance between the inside of the tank and the outside of the tank is maintained, and the safety of the storage tank is protected.
Claims (10)
1. A high temperature breather valve, characterized in that: the device comprises a positive pressure barrel body (1), a positive pressure valve component, a negative pressure barrel body (2) and a negative pressure valve component, wherein the positive pressure barrel body (1) is communicated with the negative pressure barrel body (2), the lower part of the positive pressure barrel body (1) is connected with the top of a storage tank, and the positive pressure valve component is arranged on the upper part of the positive pressure barrel body (1); a negative pressure valve component is arranged in the negative pressure cylinder body (2) to communicate or isolate the negative pressure cylinder body (2) with the atmosphere; the positive pressure cylinder body (1), the positive pressure valve component, the negative pressure cylinder body (2) and the negative pressure valve component are all made of stainless steel.
2. A high temperature breather valve according to claim 1, wherein: the positive pressure valve component comprises a positive pressure valve seat (4), a positive pressure valve rod (5), a positive pressure valve rod (6), a positive pressure guide frame (7) and a linear bearing (8), the positive pressure valve seat (4) is connected with the top of the positive pressure cylinder body (1), the positive pressure valve rod (5) is arranged at the top of the positive pressure valve seat (4), the middle of the positive pressure valve rod (5) is connected with one end of the positive pressure valve rod (6), the other end of the positive pressure valve rod (6) is matched with the linear bearing (8) on the positive pressure guide frame (7), and the positive pressure guide frame (7) is fixed with the positive pressure cylinder body (1).
3. A high temperature breather valve according to claim 2, wherein: the lower surface of the positive pressure valve disc (5) is provided with a groove (9), and the distance between the groove (9) and the positive pressure valve seat (4) is 8-10mm.
4. A high temperature breather valve according to claim 2, wherein: the positive pressure valve rod (6) is connected with the positive pressure cylinder body (1) through a static conductive assembly (10).
5. A high temperature breather valve according to claim 1, wherein: negative pressure valve subassembly includes negative pressure disk seat (11), negative pressure valve disc (12), negative pressure valve rod (13), negative pressure guide frame (14), bottom plate (15) and linear bearing (8), negative pressure disk seat (11) pass through bottom plate (15) with negative pressure barrel (2) are connected, negative pressure valve disc (12) set up the top of negative pressure disk seat (11), the middle part of negative pressure valve disc (12) with the one end of negative pressure valve rod (13) is connected, the other end and the setting of negative pressure valve rod (13) are in negative pressure guide frame (14) linear bearing (8) cooperation, negative pressure guide frame (14) are in with the setting upper cover (16) fixed connection at negative pressure barrel (2) top.
6. A high temperature breather valve according to claim 5, wherein: the upper surface of the bottom plate (15) is higher than the lower surfaces of the inner walls of the communicating pipelines of the positive pressure cylinder body (1) and the negative pressure cylinder body (2).
7. A high temperature breather valve according to claim 5, wherein: the upper surface of the negative pressure valve disc (12) is of an arc structure with a high middle part and a low periphery.
8. A high temperature breather valve according to claim 5, wherein: and the side wall of the negative pressure guide frame (14) is provided with a vent hole (17).
9. A high temperature breather valve according to claim 5, wherein: the negative pressure valve rod (13) is connected with the negative pressure cylinder body (2) through a static electricity conducting assembly (10).
10. A high temperature breather valve according to claim 1, wherein: and a mesh enclosure (18) is arranged at the position where the bottom of the negative pressure cylinder (2) is communicated with the atmosphere.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222686467.9U CN218152535U (en) | 2022-10-12 | 2022-10-12 | High-temperature breather valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222686467.9U CN218152535U (en) | 2022-10-12 | 2022-10-12 | High-temperature breather valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218152535U true CN218152535U (en) | 2022-12-27 |
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ID=84565938
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222686467.9U Active CN218152535U (en) | 2022-10-12 | 2022-10-12 | High-temperature breather valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218152535U (en) |
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2022
- 2022-10-12 CN CN202222686467.9U patent/CN218152535U/en active Active
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