CN219734291U - Differential pressure type three-way valve - Google Patents
Differential pressure type three-way valve Download PDFInfo
- Publication number
- CN219734291U CN219734291U CN202320405731.9U CN202320405731U CN219734291U CN 219734291 U CN219734291 U CN 219734291U CN 202320405731 U CN202320405731 U CN 202320405731U CN 219734291 U CN219734291 U CN 219734291U
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- Prior art keywords
- valve
- valve core
- section
- moving section
- core moving
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Links
- 239000000696 magnetic material Substances 0.000 claims abstract description 9
- 238000005299 abrasion Methods 0.000 abstract description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 229910000676 Si alloy Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- XWHPIFXRKKHEKR-UHFFFAOYSA-N iron silicon Chemical compound [Si].[Fe] XWHPIFXRKKHEKR-UHFFFAOYSA-N 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Magnetically Actuated Valves (AREA)
Abstract
The utility model provides a differential pressure type three-way valve, which comprises a valve body and a valve core, wherein the valve body is of a T shape, the valve body comprises a valve core moving section and two valve port sections in a T-shaped transverse section, the valve core moving section is positioned between the two valve port sections, the valve core moving section is intersected with the T-shaped vertical section of the valve body, the cross section of the valve core moving section is larger than that of the two valve port sections, the valve core is movably arranged in the valve core moving section, when the valve core moves to the two ends of the valve core moving section, valve ports corresponding to the two ends of the valve core moving section are respectively closed, the valve core of the T-shaped vertical section of the valve body cannot be provided with a magnetic material, one end, connected with the valve core moving section, of one valve port section is provided with a magnetic component, when the valve core moves to one end of the valve core moving section, which faces the magnetic component, the magnetic component can generate magnetic force on the valve core, the valve core is fixed in position when the differential pressure type three-way valve is not operated, abrasion caused by valve core shaking and damage caused by pump when the system is started after the valve core is frozen are avoided.
Description
Technical Field
The utility model belongs to the technical field of valves, and particularly relates to a differential pressure type three-way valve.
Background
The three-way valve is a common fluid control device, such as a selective communication between a circulating pump path and an ejector path in a hydrogen circulating system of a fuel cell; or the choice of direct connection of the circulating pump and the pipeline; or used in the vehicle brake, connect the automatic branch pipe, auxiliary reservoir and brake cylinder, used for controlling the passageway of the compressed air, make the brake act as braking or relieving. In a general three-way valve, a valve core is controlled to be opened and closed by a motor. In the differential pressure valve in the prior art, although the valve core is driven to move according to the pressure of two media, the valve core seals the valve port with small pressure, however, when the differential pressure valve does not work, if the three-way valve vibrates, the valve core also slides, the valve core can be damaged, the service life of the three-way valve is reduced, and the position of the valve core is not known before the system is started. In winter, when the air temperature is lower than 0 ℃, the residual water in the three-way valve is easy to freeze, so that the valve core is fixed, and if the valve core is frozen at one end of a valve port needing to be circulated before the system is started, the pump is damaged due to the fact that fluid cannot circulate, and the service life of the pump is reduced.
Disclosure of Invention
The present utility model has been made to solve the above-described problems, and an object of the present utility model is to provide a differential pressure type three-way valve in which a valve element is fixed when not in operation. The differential pressure type three-way valve provided by the utility model can not damage a pump when a system is started after the valve core is frozen, and can avoid abrasion caused by shaking of the valve core when the system is not in operation.
The utility model provides a differential pressure type three-way valve, which comprises a valve body and a valve core, wherein the valve core is used for changing the flow direction of a medium, and is characterized in that:
the valve body is of a T shape, the transverse section of the T shape of the valve body comprises a valve core moving section and two valve port sections, the valve core moving section is positioned between the two valve port sections, the valve core moving section is intersected with the T-shaped vertical section of the valve body, the cross section of the valve core moving section is larger than the cross section of the two valve port sections,
the valve core is movably arranged in the valve core moving section, when the valve core moves to the two ends of the valve core moving section, valve ports corresponding to the two ends of the valve core moving section are respectively closed, the valve ports of the T-shaped vertical section of the valve body are not closed, the valve core is provided with a magnetic material,
one end of one valve port section, which is connected with the valve core moving section, is provided with a magnetic member, and when the valve core moves to one end of the valve core moving section, which faces the magnetic member, the magnetic member can generate magnetic force on the valve core.
Further, in the differential pressure type three-way valve provided by the present utility model, it may further have the following features: the other end of the valve port section, which is connected with the valve core moving section, is also provided with a magnetic component.
Further, in the differential pressure type three-way valve provided by the present utility model, it may further have the following features: the valve core is spherical or cylindrical.
Further, in the differential pressure type three-way valve provided by the present utility model, it may further have the following features: the valve core moving section is in threaded connection with one valve port section, and the magnetic component is arranged on the valve port section in threaded connection with the valve core moving section.
The utility model has the following advantages:
according to the differential pressure type three-way valve, when the differential pressure type three-way valve is not in operation, the valve core is blown to one end provided with the magnetic component, the valve core is attracted by the magnetic component, the position is determined, when the air temperature is low, the valve core is frozen, a valve port which needs to be circulated when the system is started is unblocked (when the differential pressure type three-way valve is installed, which valve port is blocked when the differential pressure type three-way valve is not in operation), the pump is not damaged, when the system is started for a certain time, the circulated medium thaws the valve core, and the three-way valve is in normal operation. And after the valve core is sucked, abrasion caused by random movement of the valve core due to vibration when the differential pressure type three-way valve is not in operation is avoided.
Drawings
FIG. 1 is a schematic diagram of a differential pressure three-way valve according to an embodiment of the present utility model;
FIG. 2 is a schematic diagram of a differential pressure three-way valve according to another embodiment of the present utility model;
fig. 3 is a schematic structural view of a differential pressure type three-way valve according to a third embodiment of the present utility model.
Detailed Description
In order to make the technical means, creation characteristics, achievement purposes and effects of the present utility model easy to understand, the following embodiments specifically describe the differential pressure type three-way valve of the present utility model with reference to the accompanying drawings.
As shown in fig. 1, 2, and 3, the differential pressure three-way valve 100 includes: a valve body 10 and a valve core 20.
The valve body 10 is "T" shaped, the valve body 10 comprising in the transverse section of the T: valve spool moving section 11, valve port section 12 and valve port section 13. The valve core moving section 11 is positioned between the valve port section 12 and the valve port section 13, the valve core moving section 11 is intersected with the T-shaped vertical section 14 of the valve body 10, and the cross section of the valve core moving section 11 is larger than the cross sections of the valve port section 12 and the valve port section 13.
The valve core 20 is movably arranged in the valve core moving section 11, when the valve core 20 moves to the two ends of the valve core moving section 11, valve ports corresponding to the two ends of the valve core moving section 11 are respectively closed, and valve ports of the T-shaped vertical section of the valve body 10 are not closed. The valve core 20 is provided with a magnetic material.
The end of the valve port section 12 connected with the valve core moving section 11 is provided with a magnetic member 30, and when the valve core 20 moves to the end of the valve core moving section 11 facing the magnetic member 30, the magnetic member 30 generates magnetic force to the valve core 20. Specifically, the magnitude of the attractive force generated by the magnetic member 30 to the valve core 20 does not affect the opening pressure of the valve port segment 12 during normal operating conditions.
In one embodiment, as shown in fig. 1, the valve core moving section 11 is in threaded connection with the valve port section 12, the magnetic member 30 is disposed on the valve port section 12 in threaded connection with the valve core moving section 11, and a side of the valve core 20 facing the valve port section 12 is provided with the magnetic material 21.
Specifically, the magnetic member 30 is a permanent magnet, and the magnetic material provided on the valve core 20 is a soft magnetic material. For example, pure iron, iron-silicon alloy, and the like.
When the system does not work, if the valve core 20 is positioned at one end of the valve core moving section 11 connected with the valve port section 13, the valve core 20 is blown to one end of the valve core moving section 11 connected with the valve port section 12, and the magnetic component 30 attracts the valve core 20, so that the valve core 20 is fixed in position, the valve body 10 cannot vibrate to enable the valve core 20 to move, and mechanical damage of the valve core is reduced.
As shown in fig. 2 and 3, the end of the valve port section 13 connected to the valve element moving section 11 is also provided with a magnetic member 40, and when the valve element 20 moves to the end of the valve element moving section 11 facing the magnetic member 40, the magnetic member 40 generates a magnetic force on the valve element 20. Specifically, the magnitude of the attractive force generated by the magnetic member 40 to the valve core 20 does not affect the opening pressure of the valve port segment 12 during normal operating conditions. The valve port sections 12 and 13 are provided with magnetic members, so that system instability caused by frequent direction switching of the valve core 20 when the valve port sections 12 and 13 change in a small pressure range can be avoided.
In one embodiment, as shown in fig. 2, the valve core 20 is spherical, and the valve port sections 12 and 13 are provided with magnetic members, and the valve core 20 is made of magnetic material or is made of magnetic material on the surface of the sphere.
In another embodiment, as shown in fig. 3, the valve core 20 has a cylindrical shape, and both sides of the valve core 20 facing the valve port section 12 and the valve port section 13 are provided with magnetic members.
The above embodiments are preferred examples of the present utility model, and are not intended to limit the scope of the present utility model.
Claims (4)
1. The utility model provides a differential three-way valve, includes valve body and case, the case is used for changing the flow direction of medium, its characterized in that:
the valve body is of a T shape, the transverse section of the T shape of the valve body comprises a valve core moving section and two valve port sections, the valve core moving section is positioned between the two valve port sections, the valve core moving section is intersected with the T-shaped vertical section of the valve body, the cross section of the valve core moving section is larger than the cross section of the two valve port sections,
the valve core is movably arranged in the valve core moving section, when the valve core moves to the two ends of the valve core moving section, valve ports corresponding to the two ends of the valve core moving section are respectively closed, the valve ports of the T-shaped vertical section of the valve body are not closed, the valve core is provided with a magnetic material,
one end of one valve port section, which is connected with the valve core moving section, is provided with a magnetic member, and when the valve core moves to one end of the valve core moving section, which faces the magnetic member, the magnetic member can generate magnetic force on the valve core.
2. The differential three-way valve according to claim 1, wherein:
the other end of the valve port section, which is connected with the valve core moving section, is also provided with a magnetic component.
3. The differential three-way valve according to claim 1, wherein:
the valve core is spherical or cylindrical.
4. The differential three-way valve according to claim 1, wherein:
the valve core moving section is in threaded connection with one valve port section, and the magnetic component is arranged on the valve port section in threaded connection with the valve core moving section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320405731.9U CN219734291U (en) | 2023-03-07 | 2023-03-07 | Differential pressure type three-way valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320405731.9U CN219734291U (en) | 2023-03-07 | 2023-03-07 | Differential pressure type three-way valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219734291U true CN219734291U (en) | 2023-09-22 |
Family
ID=88051638
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320405731.9U Active CN219734291U (en) | 2023-03-07 | 2023-03-07 | Differential pressure type three-way valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219734291U (en) |
-
2023
- 2023-03-07 CN CN202320405731.9U patent/CN219734291U/en active Active
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