CN211525613U - Combined high-temperature reversing valve - Google Patents
Combined high-temperature reversing valve Download PDFInfo
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- CN211525613U CN211525613U CN201921812939.2U CN201921812939U CN211525613U CN 211525613 U CN211525613 U CN 211525613U CN 201921812939 U CN201921812939 U CN 201921812939U CN 211525613 U CN211525613 U CN 211525613U
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- fluid pipeline
- piston assembly
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Abstract
A combined high-temperature reversing valve comprises a first valve body and a second valve body, wherein the first valve body and the second valve body are fixedly connected into a whole through screws, the longitudinal axes of a first valve shaft and a second valve shaft are positioned on the same straight line, a first valve main body is arranged at the right end of the first valve shaft, a second valve main body is arranged at the left end of the second valve shaft, a reset spring and a first fluid pipeline shared by two valves are arranged at the middle positions of the first valve main body and the second valve main body, a second fluid pipeline is arranged at the lower end of the first valve body, and a third fluid pipeline is arranged at the lower end of the second valve body; the on-off conditions of the second fluid pipeline, the third fluid pipeline and the first fluid pipeline can be respectively controlled by respectively controlling the movement of the first valve shaft and the second valve shaft; the design of the multilayer sealing structure is suitable for long-term work in various high-temperature environments, the opening and closing are rapid, the reliability is high, the size is small, the maintenance is simple and convenient, and the pipeline arrangement is simple.
Description
Technical Field
The utility model relates to a valve, especially a switching-over valve suitable for under the high temperature environment, sealed requirement is high.
Background
At present, the working environment temperature of the common reversing valves in China market is mostly-30-80 ℃, the reversing valves with slightly higher service temperature are also provided, the working temperature is-30-125 ℃, although the valves are convenient to use, the valves can not meet the requirement of long-time operation at high temperature (more than 180 ℃), even if electricity is combined, the gas can achieve high-temperature operation, the cost is higher, and the pipelines are complex during installation. And is too complicated to maintain. Therefore, there is a need for improvements over the prior art.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defect that prior art exists, to high temperature environment, and sealed higher operating mode of requirement gets off the valve that realizes gas circuit or oil circuit switching-over, provides a neotype combination formula high temperature switching-over valve.
The technical scheme is as follows: the reversing valve combined by two direct-acting check valves comprises valve bodies, valves, a return spring, a piston assembly and an end cover assembly, wherein the valves are respectively arranged in shaft holes of the two valve bodies, the piston assembly and the end cover assembly are arranged at the other end of the valve bodies, and the return spring is arranged between the two valves. The two valve bodies are connected into a whole by 4 screws. The valve is opened by ventilating the two ends to push the piston assembly, so that the gas circuit or the oil circuit is reversed.
The utility model adopts the technical proposal that: a combined high-temperature reversing valve comprises a first valve body and a second valve body which are in direct-acting type;
the left end of the first valve body is provided with a first hole, and a first end cover assembly and a first piston assembly are arranged in the first hole; the outer side of the first end cover assembly is sleeved with a first hole check ring, the right side of the first piston assembly is provided with a first valve shaft which can slide left and right under the action of the first piston assembly, and one end of the first valve shaft, which is close to the first piston assembly, is provided with a first sealing ring;
the right end of the second valve body is provided with a second hole, a second end cover assembly and a second piston assembly are arranged in the second hole, a second hole check ring is sleeved on the outer side of the second end cover assembly, a second valve shaft capable of sliding left and right under the action of the second piston assembly is arranged on the left side of the second piston assembly, and a second sealing ring is arranged on one side, close to the second piston assembly, of the second valve shaft;
the first valve body and the second valve body are fixedly connected into a whole through screws, the longitudinal axes of the first valve shaft and the second valve shaft are positioned on the same straight line, the right end of the first valve shaft is integrally connected with a first valve main body, the left end of the second valve shaft is integrally connected with a second valve main body, a reset spring and a first fluid pipeline shared by two valves are arranged in the middle positions of the first valve main body and the second valve main body, the lower end of the first valve body is provided with a second fluid pipeline, and the lower end of the second valve body is provided with a third fluid pipeline; the on-off conditions of the second fluid pipeline, the third fluid pipeline and the first fluid pipeline can be respectively controlled by respectively controlling the movement of the first valve shaft and the second valve shaft.
Furthermore, No. three sealing rings are arranged at the butt joint of the first valve body and the second valve body.
Further, linear sealing is adopted between the first valve body and the first valve body, and linear sealing is adopted between the second valve body and the second valve body.
Furthermore, be equipped with No. two rings of piston seal circle No. one on the piston assembly, be equipped with two rings of No. two piston seal circle on the piston assembly No. two.
The utility model has the advantages and the characteristics that:
the valve has the performance and the advantages of other valves of the same kind, and simultaneously designs a multilayer sealing structure, so that the valve can be suitable for long-term working in various high-temperature environments and systems with high sealing requirements to realize the reversing of gas paths or oil paths. The reversing channel can be freely selected according to the requirements of the system. The valve has the characteristics of quick opening and closing, high reliability, small volume, simple and convenient maintenance and simple pipeline arrangement.
And secondly, the valve works in a high-temperature environment, and the contact part of the valve and the valve body is designed to be linear sealing, so that the service life of the product is greatly prolonged.
And thirdly, aiming at the situation that the cleanliness of a hydraulic or pneumatic system in the domestic market is difficult to control and the valve core is blocked frequently to cause the functional failure of the valve (such as a slide valve type reversing valve), the direct-acting check valve is designed to carry out combined reversing, so that the reappearance of the fault is effectively avoided, various resistances caused by friction are reduced, and the reversing speed is greatly improved.
Drawings
Fig. 1 is a schematic overall structure diagram of a preferred embodiment of the present invention;
FIG. 2 is a schematic structural view of a linear sealing node enlarged at the dashed line in FIG. 1;
the reference numbers in the figures denote: the valve comprises a first hole check ring 1, a first end cover assembly 2, a first sealing ring 3, a first piston assembly 4, a first valve body 5, a first valve body 6, a first valve body 7, a return spring 8, a second valve body 9, a third sealing ring 10, a second valve body 11, a second sealing ring 12, a second end cover assembly 13, a second hole check ring 14, a second piston assembly 15, a first fluid pipeline 16, a second fluid pipeline 17, a third fluid pipeline 18, a first valve shaft 19, a second valve shaft 41, a first piston sealing ring and a second piston sealing ring 141.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings:
example 1:
referring to fig. 1, a combined high-temperature reversing valve includes a first valve body 5 and a second valve body 10;
the left end of the first valve body 5 is provided with a first hole 20, and a first end cover assembly 2 and a first piston assembly 4 are arranged in the first hole 20; a first hole check ring 1 is sleeved on the outer side of the first end cover assembly 2, a first valve shaft 18 capable of sliding left and right under the action of the first piston assembly 4 is arranged on the right side of the first piston assembly 4, and a first sealing ring 3 is arranged at one end, close to the first piston assembly 4, of the first valve shaft 18;
the right end of the second valve body 10 is provided with a second hole 21, a second end cover assembly 12 and a second piston assembly 14 are arranged in the second hole 21, a second hole retainer ring 13 is sleeved on the outer side of the second end cover assembly 12, a second valve shaft 19 capable of sliding left and right under the action of the second piston assembly is arranged on the left side of the second piston assembly 14, and a second sealing ring 11 is arranged on one side, close to the second piston assembly 14, of the second valve shaft 19;
the first valve body 5 and the second valve body 10 are fixedly connected into a whole through screws, the longitudinal axes of the first valve shaft 18 and the second valve shaft 19 are positioned on the same straight line, the right end of the first valve shaft 18 is integrally connected with a first valve main body 6, the left end of the second valve shaft 19 is integrally connected with a second valve main body 8, a reset spring 7 and a first fluid pipeline 15 which are shared by two valves are arranged at the middle positions of the first valve main body 6 and the second valve main body 8, a second fluid pipeline 16 is arranged at the lower end of the first valve body 5, and a third fluid pipeline 17 is arranged at the lower end of the second valve body 10; the on-off conditions of the second fluid pipeline 16, the third fluid pipeline 17 and the first fluid pipeline 15 can be respectively controlled by respectively controlling the movement of the first valve shaft 18 and the second valve shaft 19.
This scheme adopts two direct action formula check valves to pass through the screw connection and becomes a whole. The valve opening of the two direct-acting check valves is respectively completed by pushing a piston to ventilate by respective cylinders (conventional structures, not shown in the figure); closing is accomplished by a common return spring. The cylinders at two ends can be simultaneously opened for ventilation according to requirements, so that the function of one inlet and two outlets is realized; one end of the cylinder can be ventilated to realize the function of one inlet and one outlet. The valve has the characteristics of quick opening and closing, high reliability, large flow and simple and convenient maintenance.
Example 2:
the difference from the embodiment 1 is that a multilayer sealing structure is designed in the embodiment to ensure that the reversing valve can work for a long time in various environments with high temperature and high sealing requirements, and a third sealing ring 9 is arranged at the butt joint of the first valve body 5 and the second valve body 10; the first valve body 5 and the first valve body 6 are sealed linearly, and the second valve body 10 and the second valve body 8 are sealed linearly (please refer to fig. 2, linear sealing is adopted, so that high cost caused by high-temperature environment and special material for sealing, such as high-temperature-resistant rubber, is avoided); and the first piston assembly 4 is provided with two rings of first piston sealing rings 41, and the second piston assembly 14 is provided with two rings of second piston sealing rings 141.
The basic principles and main features of the present invention and the advantages of the present invention have been shown and described above. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description of the above embodiments and the description is only for the purpose of illustrating the structural relationships and principles of the present invention, and that there can be various changes and modifications without departing from the spirit and scope of the present invention, and that these changes and modifications all fall within the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (4)
1. The utility model provides a modular high temperature switching-over valve which characterized in that: comprises a first valve body (5) and a second valve body (10) which are directly operated;
the left end of the first valve body (5) is provided with a first hole (20), and a first end cover assembly (2) and a first piston assembly (4) are arranged in the first hole (20); a first hole check ring (1) is sleeved on the outer side of the first end cover assembly (2), a first valve shaft (18) capable of sliding left and right under the action of the first piston assembly (4) is arranged on the right side of the first piston assembly (4), and a first sealing ring (3) is arranged at one end, close to the first piston assembly (4), of the first valve shaft (18);
the right end of the second valve body (10) is provided with a second hole (21), a second end cover assembly (12) and a second piston assembly (14) are arranged in the second hole (21), a second check ring (13) for the second hole is sleeved on the outer side of the second end cover assembly (12), a second valve shaft (19) capable of sliding left and right under the action of the second piston assembly is arranged on the left side of the second piston assembly (14), and a second sealing ring (11) is arranged on one side, close to the second piston assembly (14), of the second valve shaft (19);
the first valve body (5) and the second valve body (10) are fixedly connected into a whole through screws, the longitudinal axes of the first valve shaft (18) and the second valve shaft (19) are positioned on the same straight line, the right end of the first valve shaft (18) is integrally connected with a first valve main body (6), the left end of the second valve shaft (19) is integrally connected with a second valve main body (8), a reset spring (7) and a first fluid pipeline (15) shared by two valves are arranged in the middle positions of the first valve main body (6) and the second valve main body (8), the lower end of the first valve body (5) is provided with a second fluid pipeline (16), and the lower end of the second valve body (10) is provided with a third fluid pipeline (17); the on-off conditions of the second fluid pipeline (16), the third fluid pipeline (17) and the first fluid pipeline (15) can be respectively controlled by respectively controlling the movement of the first valve shaft (18) and the second valve shaft (19).
2. The combination high temperature reversing valve of claim 1, wherein: a third sealing ring (9) is arranged at the butt joint of the first valve body (5) and the second valve body (10).
3. The combination high temperature reversing valve of claim 1, wherein: linear sealing is adopted between the first valve body (5) and the first valve main body (6), and linear sealing is adopted between the second valve body (10) and the second valve main body (8).
4. The combination high temperature reversing valve of claim 1, wherein: and two rings of first piston sealing rings (41) are arranged on the first piston assembly (4), and two rings of second piston sealing rings (141) are arranged on the second piston assembly (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921812939.2U CN211525613U (en) | 2019-10-27 | 2019-10-27 | Combined high-temperature reversing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921812939.2U CN211525613U (en) | 2019-10-27 | 2019-10-27 | Combined high-temperature reversing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211525613U true CN211525613U (en) | 2020-09-18 |
Family
ID=72462169
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921812939.2U Active CN211525613U (en) | 2019-10-27 | 2019-10-27 | Combined high-temperature reversing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211525613U (en) |
-
2019
- 2019-10-27 CN CN201921812939.2U patent/CN211525613U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A combined high temperature directional valve Effective date of registration: 20220310 Granted publication date: 20200918 Pledgee: Bank of China Limited Wuhan Economic and Technological Development Zone sub branch Pledgor: WUHAN DONGJIANG FEITE SCIENCE AND TECHNOLOGY Co.,Ltd. Registration number: Y2022420000057 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20230423 Granted publication date: 20200918 Pledgee: Bank of China Limited Wuhan Economic and Technological Development Zone sub branch Pledgor: WUHAN DONGJIANG FEITE SCIENCE AND TECHNOLOGY Co.,Ltd. Registration number: Y2022420000057 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A combined high-temperature directional valve Effective date of registration: 20230425 Granted publication date: 20200918 Pledgee: Bank of China Limited Wuhan Economic and Technological Development Zone sub branch Pledgor: WUHAN DONGJIANG FEITE SCIENCE AND TECHNOLOGY Co.,Ltd. Registration number: Y2023420000180 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |