CN218883094U - Corrosion-resistant and wear-resistant ceramic safety valve - Google Patents
Corrosion-resistant and wear-resistant ceramic safety valve Download PDFInfo
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- CN218883094U CN218883094U CN202320177830.6U CN202320177830U CN218883094U CN 218883094 U CN218883094 U CN 218883094U CN 202320177830 U CN202320177830 U CN 202320177830U CN 218883094 U CN218883094 U CN 218883094U
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- valve
- resistant
- clack
- recoil disc
- recoil
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Abstract
The utility model relates to a corrosion-resistant and wear-resistant ceramic safety valve, which comprises a valve body, a valve seat, a valve clack, a valve rod, a valve cover and a spring pressure setting device, wherein the valve clack is arranged at the center of the lower end surface of a recoil disc, the lower end surface of the valve clack is provided with a sealing surface mutually matched with the valve seat, and the outer cylindrical surface of the recoil disc is in guiding fit with a guide sleeve between the valve body and the valve cover; the method is characterized in that: the valve clack and the recoil disc are of an integral ceramic material structure, and a buffer cushion is arranged between the recoil disc and the valve rod; a corrugated pipe is arranged between the outer circular surface of the guide sleeve and the back plane of the recoil disc, and an anti-blocking sleeve is arranged outside the corrugated pipe. The sealing device has the advantages of wear resistance, scouring resistance, good stability of set pressure, reliable sealing performance and the like.
Description
Technical Field
The utility model belongs to the pump field especially relates to a spring relief valve. The utility model is suitable for an abrasion particle medium operating mode that has corrosivity.
Background
The safety valve is widely used for safety valves of pressure vessels such as boilers, medium pipelines and the like. The spring type safety valve is a common structure form and comprises a valve body, a valve seat, a valve clack, a valve rod, a valve cover and a spring pressure setting device, wherein the valve clack is arranged at the center of the lower end face of a recoil disc, the center of the upper end face of the recoil disc is connected with the spring pressure setting device through the valve rod, an outer cylindrical face is in guide fit with a guide sleeve between the valve body and the valve cover, and the opening and closing of the valve clack are determined by the ratio of the inlet pressure of the valve body to the setting pressure. However, in the existing spring-type safety valve, when the valve clack is in an open state, a medium is easy to enter the spring cavity through a gap between the guide sleeve and the recoil disc, and corrosive medium corrodes the spring to influence the stability of the set pressure; the sealing surface of the valve seat is easily washed by granular media, so that the sealing pair leaks.
Disclosure of Invention
The utility model aims at the shortcoming that prior art exists, provide one kind and have corrosion-resistant, resistant washing away, set stable, the reliable corrosion-resistant stand wear and tear ceramic relief valve of sealing performance of pressure.
Realize the utility model discloses the technical scheme of purpose does:
a corrosion-resistant and wear-resistant ceramic safety valve comprises a valve body, a valve seat, a valve clack, a valve rod, a valve cover and a spring pressure setting device, wherein the valve body is provided with an inlet channel and a discharge channel; the method is characterized in that: the valve clack and the recoil disc are of an integral ceramic material structure, and a buffer cushion is arranged between the recoil disc and the valve rod; a corrugated pipe is arranged between the outer circular surface of the guide sleeve and the back plane of the recoil disc, and an anti-blocking sleeve is arranged outside the corrugated pipe.
Preferably, the sealing surface of the valve seat is sprayed with ceramic materials, the sealing surface of the valve seat and the sealing surface of the valve clack adopt conical sealing surfaces, and the conical sealing surfaces are matched with each other to form a conical sealing pair.
Compared with the prior art, the utility model beneficial effect be: the sealing surface of the valve clack and the valve seat is made of ceramic materials, so that the wear resistance, the scouring resistance and the corrosion resistance are improved; the spring cavity is sealed by the anti-blocking corrugated pipe, so that the corrosion of the spring caused by the medium entering the spring cavity and the influence of the corrugated pipe blockage by medium particles on the telescopic performance are prevented. The sealing device has the advantages of wear resistance, scouring resistance, good stability of set pressure, reliable sealing performance and the like.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
In the figure: the valve comprises a valve body 1, a valve seat 2, an adjusting ring 3, a recoil disc 4, an anti-blocking sleeve 5, a corrugated pipe 6, a cushion pad 7, a guide sleeve 8, a valve rod 9, a valve cover 10, a spring 11, an adjusting threaded sleeve 12, a locking nut 13, a dust cover 14 and a valve clack 15.
Detailed description of the preferred embodiments
The corrosion-resistant and wear-resistant ceramic safety valve shown in fig. 1 comprises a valve body 1, a valve seat 2, a valve clack 15, a valve rod 9, a valve cover 10, a recoil disc 4 and a spring pressure setting device, wherein the valve body 1 is provided with an inlet channel and a discharge channel, the valve seat 2 is installed in the inlet channel of the valve body 1, the lower end face of the valve clack 15 is provided with a sealing surface matched with the valve seat 2, the center of the upper end face of the recoil disc 4 is connected with the spring pressure setting device through the valve rod 9, the outer cylindrical surface is in guiding fit with a guide sleeve 8 between the valve body 1 and the valve cover 10, and a disc on the upper portion of the guide sleeve 8 is in sealing press fit between the valve body 1 and the valve cover 10; the method is characterized in that: the valve clack 15 and the recoil disc 4 adopt an integral structure of ceramic materials, and the buffer pad 7 is arranged between the recoil disc 4 and the valve rod 9, so that the impact force between the valve clack 15 and the valve seat 2 when the valve clack 15 is closed is reduced, and the valve clack 15 and the sealing surface of the valve seat 2 are prevented from being impacted and damaged; set up bellows 6 between the outer disc of uide bushing 8 and 4 back of the body planes of recoil dish, prevent that the medium from passing through the clearance between recoil dish 4 and the uide bushing 8 and getting into the spring chamber in the valve gap 10, avoid spring 11 to receive medium corrosion to influence the pressure value of setting, adopt metal clamping ring seal installation between bellows 6 and the 4 back of the body planes of recoil dish, set up in the 6 outside of bellows and prevent stifled sleeve 5, prevent stifled sleeve 5 upper end welding in the lower plane of 8 discs of uide bushing, prevent that the interior wall of stifled sleeve 5 and 6 outer disc clearance fit of bellows, prevent that the medium granule from getting into to block up between the ripple of bellows 6 and piling up, influence the flexible performance of bellows 6.
The sealing surface of the valve seat 2 is sprayed with ceramic materials, the sealing surface of the valve seat 2 and the sealing surface of the valve clack 15 adopt conical sealing surfaces, the conical sealing surfaces are matched with each other to form a conical sealing pair, and when the valve seat is closed almost completely, the medium automatically sweeps impurities on the sealing surface, so that the self-cleaning function of the sealing surface is realized.
The spring pressure setting device consists of a spring 11 and an adjusting threaded sleeve 12, wherein the spring 11 is arranged between an upper spring seat and a lower spring seat on the outer circular surface of the valve rod 9, the lower end of the adjusting threaded sleeve 12 is pressed in the horizontal plane of the upper spring seat, the outer circular surface is in threaded connection with the valve cover 10, and the setting pressure value is set by adjusting the upper position and the lower position of the adjusting threaded sleeve 12 and the elasticity of the spring 11. The adjusting threaded sleeve 12 is locked on the valve cover 10 through the locking nut 13 to prevent the valve cover 10 from being loosened by external force, and the dustproof cover 14 is arranged on the valve cover 10 on the outer side of the adjusting threaded sleeve 12 to prevent dust from entering between the adjusting threaded sleeve 12 and the valve rod 9 and increase the moving resistance of the valve rod 9 during opening and closing. An adjusting ring 3 is arranged on the outer side of the sealing surface of the valve seat 2, and the opening height and the seat returning speed of the valve clack 15 are adjusted by axially adjusting the adjusting ring 3.
Claims (2)
1. A corrosion-resistant and wear-resistant ceramic safety valve comprises a valve body (1), a valve seat (2), a valve clack (15), a valve rod (9), a valve cover (10), a recoil disc (4) and a spring pressure setting device, wherein the valve body (1) is provided with an inlet channel and a discharge channel, the valve seat (2) is installed in the inlet channel of the valve body (1), the lower end face of the valve clack (15) is provided with a sealing face matched with the valve seat (2), the center of the upper end face of the recoil disc (4) is connected with the spring pressure setting device through the valve rod (9), and the outer cylindrical face is in guiding fit with a guide sleeve (8) between the valve body (1) and the valve cover (10); the method is characterized in that: the valve clack (15) and the recoil disc (4) adopt a ceramic material integral structure, and a buffer pad (7) is arranged between the recoil disc (4) and the valve rod (9); a corrugated pipe (6) is arranged between the outer circular surface of the guide sleeve (8) and the back plane of the recoil disc (4), and an anti-blocking sleeve (5) is arranged on the outer side of the corrugated pipe (6).
2. The corrosion and wear resistant ceramic safety valve of claim 1, wherein: the sealing surface of the valve seat (2) is sprayed with ceramic materials, the sealing surface of the valve seat (2) and the sealing surface of the valve clack (15) adopt conical sealing surfaces, and the conical sealing surfaces are matched with each other to form a conical sealing pair.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320177830.6U CN218883094U (en) | 2023-02-10 | 2023-02-10 | Corrosion-resistant and wear-resistant ceramic safety valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320177830.6U CN218883094U (en) | 2023-02-10 | 2023-02-10 | Corrosion-resistant and wear-resistant ceramic safety valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218883094U true CN218883094U (en) | 2023-04-18 |
Family
ID=85944122
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320177830.6U Active CN218883094U (en) | 2023-02-10 | 2023-02-10 | Corrosion-resistant and wear-resistant ceramic safety valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218883094U (en) |
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2023
- 2023-02-10 CN CN202320177830.6U patent/CN218883094U/en active Active
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