CN110242778B - Bidirectional throttle valve - Google Patents
Bidirectional throttle valve Download PDFInfo
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- CN110242778B CN110242778B CN201810194773.6A CN201810194773A CN110242778B CN 110242778 B CN110242778 B CN 110242778B CN 201810194773 A CN201810194773 A CN 201810194773A CN 110242778 B CN110242778 B CN 110242778B
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- 230000002457 bidirectional effect Effects 0.000 title abstract description 14
- 238000007789 sealing Methods 0.000 claims description 47
- 239000007787 solid Substances 0.000 claims 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 4
- 238000004891 communication Methods 0.000 description 11
- 238000000034 method Methods 0.000 description 9
- 230000008569 process Effects 0.000 description 5
- 230000009471 action Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000003507 refrigerant Substances 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/20—Excess-flow valves
- F16K17/22—Excess-flow valves actuated by the difference of pressure between two places in the flow line
- F16K17/24—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member
- F16K17/28—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member operating in one direction only
- F16K17/30—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member operating in one direction only spring-loaded
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Lift Valve (AREA)
Abstract
The invention discloses a bidirectional throttle valve, and relates to the technical field of throttle valves. Including the valve pipe, locate first valve body and second valve body in the valve pipe, the valve pipe has first interface and second interface, and first valve body is equipped with first throttle passageway, and the second valve body is equipped with second throttle passageway, and the valve is intraductal to be located and is equipped with middle intercommunication passageway, its characterized in that between first valve body and the second valve body: a first flow guide channel is arranged between the first interface and the middle communicating channel in the valve pipe, a second flow guide channel is arranged between the second interface and the middle communicating channel, and the first valve body and the second valve body move synchronously along the axial direction of the valve pipe. The invention can effectively realize the bidirectional flow control of the throttle valve.
Description
Technical Field
The invention relates to the technical field of throttle valves, in particular to a bidirectional throttle valve.
Background
In a refrigeration cycle of a refrigeration apparatus, a throttle device is required, and capillary throttling is often used as the throttle device, or an electronic expansion valve is used as the throttle device. Many conventional throttle devices are throttle valves whose valve opening degree changes according to a differential pressure between a refrigerant pressure on a condenser side (primary side) and a refrigerant pressure on an evaporator side (secondary side), and are provided with springs that urge valve needles in a valve closing direction against a force caused by the differential pressure. The existing valve throttling device is easy to be blocked in the using process, has no flow when being totally closed or at low pressure, and cannot realize bidirectional flow or is unsmooth when the bidirectional flow exists.
Disclosure of Invention
Aiming at the defects of the prior art, the invention discloses a bidirectional throttle valve which can solve the problem that the bidirectional flow of the conventional throttle valve is not smooth.
In order to achieve the purpose, the invention is realized by the following technical scheme:
a bidirectional throttle valve comprises a valve pipe, a first valve body and a second valve body arranged in the valve pipe, wherein the valve pipe is provided with a first connector and a second connector, the first valve body is provided with a first throttling channel, the second valve body is provided with a second throttling channel, an intermediate communication channel is arranged between the first valve body and the second valve body in the valve pipe, a first flow guide channel is arranged between the first interface and the middle communicating channel in the valve pipe, a second flow guide channel is arranged between the second interface and the middle communicating channel, the first valve body and the second valve body synchronously move along the axial direction of the valve pipe, when the first valve body and the second valve body are positioned at a first throttling position, the first throttling channel, the middle communicating channel and the second flow guide channel are communicated with the first interface and the second interface, when the first valve body and the second valve body are positioned at the second throttling position, the second throttling channel and the middle communicating channel are communicated with the first flow guide channel through the first interface and the second interface.
Furthermore, the first flow guide channel is located in the first valve body, the second flow guide channel is located in the second valve body, when the first valve body and the second valve body are located in the first throttling position, the first flow guide channel is closed, the second flow guide channel is opened, and when the first valve body and the second valve body are located in the second throttling position, the first flow guide channel is opened, and the second flow guide channel is closed.
Further, the first flow guide channel penetrates through the first valve body on the outer wall of the first valve body along the axial direction of the first valve body; or the first flow guide channel spirally extends along the axial direction of the first valve body on the outer wall of the first valve body; or the second flow guide channel penetrates through the second valve body on the outer wall of the second valve body along the axial direction of the second valve body; or the second flow guide channel spirally extends along the axial direction of the second valve body on the outer wall of the second valve body.
Furthermore, the valve pipe is provided with a first sealing ring and a second sealing ring which protrude inwards, when the first valve body is located at the first throttling position, the first valve body is in contact with the first sealing ring to close the first flow guide channel, and the second valve body leaves the second sealing ring to open the second flow guide channel.
Further, the valve pipe is provided with a first fixing ring and a second fixing ring which are protruded inwards, a first sealing part is arranged on the first fixing ring, the first sealing part is provided with a first groove matched with the first fixing ring, a second sealing part is arranged on the second fixing ring, the second sealing part is provided with a second groove matched with the second fixing ring, when the first valve body is located at the first throttling position, the first valve body is in contact with the first sealing part to close the first diversion channel, the second valve body leaves the second sealing part to open the second diversion channel, when the second valve body is located at the second throttling position, the second valve body is in contact with the second sealing part to close the second diversion channel, and the first valve body leaves the first sealing part to open the first diversion channel.
Furthermore, the first flow guide channel and the second flow guide channel are positioned on the inner wall of the valve pipe, and the first flow guide channel and the second flow guide channel spirally extend along the axial direction of the valve pipe.
Furthermore, a support used for separating the first valve body and the second valve body is arranged in the middle communicating channel, a communicating hole used for communicating the first throttling channel and the second throttling channel is formed in the support, the middle communicating channel is formed between the support and the valve pipe, and the communicating hole is communicated with the middle communicating channel.
Further, the middle communicating channel comprises an axial communicating groove, the communicating hole comprises a radial communicating hole and an axial communicating hole, the axial communicating groove is located on the side wall of the support, the axial communicating groove axially penetrates through the support, the radial communicating hole radially penetrates through the support, the axial communicating hole axially penetrates through the support, and the radial communicating hole is communicated with the axial communicating hole.
Further, the middle communicating channel comprises an axial communicating groove and a radial communicating groove, the axial communicating groove is located in the side wall of the support, the axial communicating groove axially penetrates through the support, the radial communicating groove is located in the side wall of the support, the radial communicating groove radially penetrates through the support, and the axial communicating groove is communicated with the radial communicating groove.
Further, the middle communicating channel comprises a radial communicating groove, the communicating hole comprises an axial communicating hole, the radial communicating groove is located in the side wall of the support, the radial communicating groove penetrates through the support along the radial direction, the axial communicating hole penetrates through the support along the axial direction, and the radial communicating groove is communicated with the axial communicating hole.
The invention discloses a bidirectional throttle valve, which has the following advantages:
1. the two valve bodies of the first valve body and the second valve body are arranged in the valve pipe, the orientations of the two valve bodies are opposite, and media in different flow directions in the valve pipe can be throttled respectively, so that a bidirectional flow control function is realized. A first flow guide channel is arranged between the first valve body and the valve pipe, a second flow guide channel is arranged between the second valve body and the valve pipe, and the two flow guide channels can respectively guide media in different flow directions in the valve pipe so as to realize a bidirectional flow control function.
2. Two valve bodies can move along with the flow of medium in the valve pipe, and the medium promotes two valve bodies to move on the one hand, need not to carry out initiative drive to two valve bodies, has reduced the unnecessary structure, has reduced the volume of valve body and has simplified the structure, is favorable to the production installation, and on the other hand two valve bodies move along with the medium, can make quick response to the change of medium flow direction, improve the reaction rate of choke valve.
3. The valve pipe is internally provided with two sealing structures including a first sealing ring and a second sealing ring respectively, at a first throttling position, the first sealing ring closes a first flow guide channel, a medium can only enter the first throttling channel through a second flow guide channel, at a second throttling position, the second sealing ring closes a second flow guide channel, the medium can only enter the second throttling channel through the first flow guide channel, the stability of the bidirectional flow control process is ensured, and the two sealing structures can limit the moving range of the two valve bodies, so that the valve bodies are prevented from falling off.
4. Still install hollow support between first valve body and the second valve body, the support can support between two valve bodies on the one hand, avoid the needle of two valve bodies to produce the collision, and cushion at two valve body removal in-process, thereby reduce the inside wearing and tearing of choke valve, improve choke valve life, the hollow support of on the other hand can guide the flow direction of medium, introduce different throttle channels with the medium of different flow directions respectively, reduce the production of indiscriminate stream, reduce the impact of noise and the inside of choke valve, improve the stability of choke valve.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only 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 cross-sectional view of embodiment 1 of the present invention in a first throttle position;
FIG. 2 is an enlarged view at A in FIG. 1;
FIG. 3 is an enlarged view at B in FIG. 1;
fig. 4 is a sectional view of embodiment 1 of the present invention at a second throttle position;
fig. 5 is a plan view of the first valve body in embodiment 1 of the invention;
fig. 6 is a side view of the first valve body in embodiment 2 of the invention;
FIG. 7 is a sectional view of a valve tube in embodiment 3 of the invention;
FIG. 8 is a sectional view of embodiment 2 of the present invention;
FIG. 9 is a perspective view of a first seal member in embodiment 2 of the invention;
FIG. 10 is a cross-sectional view of a first seal member in embodiment 2 of the invention;
FIG. 11 is a cross-sectional view of a first seal member in embodiment 2 of the invention;
FIG. 12 is a perspective view of a stent in embodiment 1 of the invention;
FIG. 13 is a perspective view of a holder in embodiment 2 of the invention;
FIG. 14 is a perspective view of a holder in embodiment 3 of the invention;
fig. 15 is a sectional view of the first valve spool in embodiment 3 of the invention;
fig. 16 is a perspective view of the first valve element in embodiment 3 of the invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
The two-way throttle valve according to the embodiment of the invention comprises a valve pipe 1, and a first valve body 2 and a second valve body 4 which are arranged in the valve pipe 1, wherein the first valve body 2 is provided with a first throttle passage 2-3, a first valve needle 2-2 and a first spring 2-1 are arranged in the first throttle passage 2-3, the first spring 2-1 pushes the first valve needle 2-2 to move in a direction of closing the first throttle passage 2-3, correspondingly, the second valve body 4 is provided with a second throttle passage 4-3, a second valve needle 4-2 and a second spring 4-1 are arranged in the second throttle passage 4-3, and the second spring 4-2 pushes the second valve needle 4-2 to move in a direction of closing the second throttle passage 4-3. As shown in fig. 2, a first flow guide channel 2-4 is formed between the first valve body 2 and the valve pipe 1, as shown in fig. 3, a second flow guide channel 4-4 is formed between the second valve body 4 and the valve pipe 1, and under the pressure of a medium (oil or gas with a certain pressure) in and at two ends of the valve pipe 1, the first valve body 2 and the second valve body 4 can synchronously move along the axial direction of the valve pipe 1 to control the on-off of the first flow guide channel 2-4 or the second flow guide channel 4-4.
As shown by the arrow direction in fig. 1, when the medium flows from the second port 1-2 to the first port 1-1 of the valve pipe 1, the medium pushes the first valve body 2 and the second valve body 4 to move to the first throttling position, at this time, the first flow guiding passage 2-4 is closed, and the first throttling passage 2-3 and the second flow guiding passage 4-4 are communicated with the openings at the two ends of the valve pipe 1. On the contrary, as shown by the arrow direction in fig. 4, when the medium flows from the first port 1-1 to the second port 1-2 of the valve pipe 1, the medium pushes the first valve body 2 and the second valve body 4 to move to the second throttling position, at this time, the second flow guiding passage 4-4 is closed, and the second throttling passage 4-3 and the first flow guiding passage 2-3 communicate with the openings at the two ends of the valve pipe 1. Thereby achieving a bi-directional flow of the medium in the valve tube 1.
Specifically, as shown in fig. 5, the first flow guide passage 2-4 extends in the axial direction of the first valve body 2, the first flow guide passage 2-4 is formed on the outer wall of the first valve body 2-4 by cutting, and the flow area of the first flow guide passage 2-4 is larger than the flow area of the first throttling passage 2-3, so that the throttling effect of the first throttling passage 2-3 is ensured. It can be understood that the second guide passage 4-4 also extends in the axial direction of the second valve body 4, the second valve body 4 is formed with the second guide passage 4-4 on the outer wall by cutting, and the flow area of the second guide passage 4-4 is larger than the flow area of the second throttling passage 4-3, thereby ensuring the throttling effect of the second throttling passage 4-3.
In addition, the valve pipe 1 is also provided with a first sealing ring 1-3 for closing the first flow guide channel 2-4 and a second sealing ring 1-4 for closing the second flow guide channel 4-4, the first interface 1-1 of the valve pipe 1 faces the first valve body 2, the first interface 1-1 protrudes inwards to form the first sealing ring 1-3, and when the first valve body 2 is located at the first throttling position, the first flow guide channel 2-4 is contacted with the first sealing ring 1-3 and is closed to prevent a medium from passing through the first flow guide channel 2-4.
It can be understood that the second port 1-2 of the valve pipe 1 faces the second valve body 4, the second port 1-4 protrudes inwards to form a second sealing ring 1-4, and when the second valve body 4 is located at the second throttling position, the second flow guide channel 4-4 contacts with the second sealing ring 1-4 and is closed to prevent the medium from passing through the second flow guide channel 4-4. Meanwhile, in order to better limit the movement of the first valve body 2 and the second valve body 4 in the valve pipe 1 and avoid the first valve body 2 and the second valve body 4 from falling off in the valve pipe 1, the diameters of the first interface 1-1 and the second interface 1-2 of the valve pipe 1 are smaller than the diameter of other parts of the valve pipe 1.
The first valve body 2 and the second valve body 4 are oppositely arranged in the valve pipe 1, the first valve needle 2-2 and the second valve needle 4-2 face each other, a hollow bracket 6 is arranged between the first valve body 2 and the second valve body 4, an intermediate communication channel is formed between the bracket and the valve pipe, and the bracket 6 separates the first valve body 2 and the second valve body 4 and can avoid the first valve needle 2 and the second valve needle 4 from colliding.
As shown in figure 12, the bracket 6 is provided with an axial communication groove 6-2, a radial communication hole 6-4 and an axial communication hole 6-3, wherein the axial communication groove 6-2 is positioned on the side wall of the bracket 6, the axial communication groove 6-2 axially penetrates through the bracket 6, the radial communication hole 6-4 radially penetrates through the bracket 6, the axial communication hole 6-3 axially penetrates through the bracket 6, and the radial communication hole 6-4 is communicated with the axial communication hole 6-3. The outer side wall of the bracket 6 is also provided with an arc-shaped guide surface 6-1, and the guide surface 6-1 is matched with the inner wall of the valve pipe 1, so that the bracket 6 can conveniently move synchronously along with the first valve body 2 and the second valve body 4 in the valve pipe 1.
In the first throttling position, the medium enters the valve pipe 1 from the second connector 1-2, sequentially passes through the second flow guide channel 4-4, the axial communicating groove 6-2, the radial communicating hole 6-4, the axial communicating hole 6-3 and the first throttling channel 2-3, and finally flows out of the valve pipe 1 from the first connector 1-1 correspondingly, in the second throttling position, the medium enters the valve pipe 1 from the first connector 1-1, sequentially passes through the first flow guide channel 2-4, the axial communicating groove 6-2, the radial communicating hole 6-4, the axial communicating hole 6-3 and the second throttling channel 4-3, and finally flows out of the valve pipe from the second connector 1-2.
Example 2
The embodiment of the invention is different from the embodiment 1 in that, as shown in fig. 6, the first flow guide channel 2-4 extends spirally on the outer wall of the first valve body 2 along the axial direction of the first valve body 2, when the first valve body 2 is located at the second throttling position, the medium passes through the first flow guide channel 2-4, and through the spirally extending first flow guide channel 2-4, the medium can generate an axial force to the first valve body 2 when passing through the first flow guide channel 2-4, so that the first valve body 2 is more stable at the second throttling position and cannot move easily. It can be understood that the second guide passage 4-4 may also extend spirally along the axial direction of the second valve body 4 along the outer wall of the second valve body 4, when the second valve body 4 is located at the first throttling position, the medium passes through the second guide passage 4-4, and the spirally extending second guide passage 4-4 can enable the medium to generate a force along the axial direction to the second valve body 4 when passing through the second guide passage 4-4, so that the second valve body 4 is more stable and cannot move easily at the first throttling position.
As shown in fig. 8 and 9, in order to better close the first guide passage 2-4, the valve tube is provided with a first sealing element 10 on the first fixing ring, the first sealing element 10 may be a plastic or rubber element, a side wall of the first sealing element 10 is provided with a first groove 10-3 matched with the first fixing ring, the first groove 10-3 extends along the circumferential direction of the first sealing element 10, and the first sealing element 10 is clamped on the first fixing ring through the first groove 10-3. It will be appreciated that the first seal 10 may also be fixed by a concave point, or may be mounted in the first port 1-1 formed by reducing or necking the valve tube 1. The first sealing member 10 is provided with a tapered opening 10-1 for communicating the valve tube 1 and the first valve body 2, so as to facilitate the passage of the medium and reduce the noise when the medium passes through, the first sealing member 10 is further provided with a protrusion 10-2 for increasing the sealing effect of the first sealing member 10, and the protrusion 10-2 may be a boss structure as shown in fig. 10 or an annular protrusion structure as shown in fig. 11. It will be appreciated that the valve tube 1 can also be provided with a second sealing element of the same design as the first sealing element 10 on the second securing ring in order to better close the second flow ducts 4-4.
The bracket 6 may be located on the first valve body 2 towards one end of the second valve body 4. As shown in FIG. 13, the stent 6 is provided with an axial communicating groove 8-3 and a radial communicating groove 8-2, the axial communicating groove 8-3 is positioned on the side wall of the stent 6, the axial communicating groove 8-3 axially penetrates through the stent 6, the radial communicating groove 8-2 is positioned on the side wall of the stent 6, the radial communicating groove 8-2 radially penetrates through the stent, and the axial communicating groove 8-3 is communicated with the radial communicating groove 8-2. In the first throttling position, the medium enters the valve pipe 1 from the second connector 1-2, sequentially passes through the second flow guide channel 4-4, the axial communicating groove 8-3, the radial communicating groove 8-2 and the first throttling channel 2-3, and finally flows out of the valve pipe 1 from the first connector 1-1. Correspondingly, in the second throttling position, the medium enters the valve pipe 1 from the first connector 1-1, sequentially passes through the first flow guide channel 2-4, the axial communicating groove 8-3, the radial communicating groove 8-2 and the second throttling channel 4-3, and finally flows out of the valve pipe from the second connector 1-2.
In addition, the outer wall of the first valve needle 2 or the second valve needle 4 can each be provided with a flow channel for guiding the medium through, which flow channel extends axially of the first valve needle 2 or the second valve needle 4.
Other undescribed structures refer to example 1.
Example 3
As shown in fig. 7, the embodiment of the present invention is different from embodiment 1 in that the first guide passage 2-4 and the second guide passage 4-4 are located on the inner wall of the valve tube 1, and the first guide passage 2-4 and the second guide passage 4-4 spirally extend in the axial direction of the valve tube 1. The first guide channel 2-4 and the second guide channel 4-4 are directly formed on the inner wall of the valve pipe 1, so that the production and the processing are convenient, the universality of the first valve body 2 and the second valve body 4 is improved, the replacement and the maintenance are convenient, and the cost is reduced.
As shown in fig. 14, the bracket 6 may be located at an end of the second valve body 4 facing the first valve body 2. The bracket 6 is provided with a radial communicating groove 9-1 and an axial communicating hole 9-3, the radial communicating groove 9-3 is positioned on the side wall of the bracket 6, the radial communicating groove 9-3 radially penetrates through the bracket 6, the axial communicating hole 9-1 axially penetrates through the bracket 6, and the radial communicating groove 9-3 is communicated with the axial communicating hole 9-1.
In addition, as shown in fig. 15 and 16, a central hole 7-1 and a cross hole 7-2 for guiding a medium may be provided in each of the first valve needle 2-2 and the second valve needle 4-2, the central hole 7-1 extends along an axial direction of the first valve needle 2-2 or the second valve needle 4-2, the cross hole 7-2 extends along a radial direction of the first valve needle 2-2 or the second valve needle 4-2, and the central hole 7-1 and the cross hole 7-2 communicate with each other to facilitate the medium to directly pass through the inside of the first valve needle 2-2 or the second valve needle 4-2.
Other undescribed structures refer to example 1.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (9)
1. The utility model provides a two-way throttle valve, includes the valve pipe, locates first valve body and second valve body in the valve pipe, and the valve pipe has first interface and second interface, and first valve body is equipped with first throttle passageway, and the second valve body is equipped with second throttle passageway, and the valve is intraductal to be located and is equipped with middle intercommunication passageway, its characterized in that between first valve body and the second valve body: a first flow guide channel is arranged between the first interface and the middle communicating channel in the valve pipe, a second flow guide channel is arranged between the second interface and the middle communicating channel, the first valve body and the second valve body synchronously move along the axial direction of the valve pipe, when the first valve body and the second valve body are positioned at a first throttling position, the first throttling channel, the middle communicating channel and the second flow guide channel are communicated with the first interface and the second interface, when the first valve body and the second valve body are positioned at the second throttling position, the second throttling channel and the middle communicating channel are communicated with the first flow guide channel to form a first interface and a second interface, the middle communicating channel is internally provided with a support for separating the first valve body from the second valve body, the support is provided with a communicating hole for communicating the first throttling channel and the second throttling channel, the middle communicating channel is formed between the support and the valve pipe, and the communicating hole is communicated with the middle communicating channel.
2. The two-way throttle valve of claim 1 wherein: the first flow guide channel is located on the first valve body, the second flow guide channel is located on the second valve body, when the first valve body and the second valve body are located at the first throttling position, the first flow guide channel is closed, the second flow guide channel is opened, and when the first valve body and the second valve body are located at the second throttling position, the first flow guide channel is opened, and the second flow guide channel is closed.
3. The two-way throttle valve of claim 2 wherein: the first flow guide channel penetrates through the first valve body on the outer wall of the first valve body along the axial direction of the first valve body; or the first flow guide channel spirally extends along the axial direction of the first valve body on the outer wall of the first valve body; or the second flow guide channel penetrates through the second valve body on the outer wall of the second valve body along the axial direction of the second valve body; or the second flow guide channel spirally extends along the axial direction of the second valve body on the outer wall of the second valve body.
4. The two-way throttle valve according to claim 2 or 3, characterized in that: the valve pipe is provided with a first sealing ring and a second sealing ring which protrude inwards, when the first valve body is located at a first throttling position, the first valve body is in contact with the first sealing ring to close the first diversion channel, and the second valve body leaves the second sealing ring to open the second diversion channel.
5. The two-way throttle valve according to claim 2 or 3, characterized in that: the valve pipe is equipped with the solid fixed ring of inside bellied first and the solid fixed ring of second, be equipped with first sealing member on the first solid fixed ring, first sealing member is equipped with the first recess with the solid fixed ring complex of first, be equipped with the second sealing member on the solid fixed ring of second, the second sealing member is equipped with the second recess with the solid fixed ring complex of second, when first valve body is located first throttle position, first valve body and the closed first water conservancy diversion passageway of first sealing member contact, the second valve body leaves the second sealing member and opens second water conservancy diversion passageway, when the second valve body is located second throttle position, the closed second water conservancy diversion passageway of second valve body and second sealing member contact, first valve body leaves first sealing member and opens first water conservancy diversion passageway.
6. The two-way throttle valve of claim 1 wherein: the first flow guide channel and the second flow guide channel are positioned on the inner wall of the valve pipe and extend spirally along the axial direction of the valve pipe.
7. The two-way throttle valve of claim 1 wherein: the middle communicating channel comprises an axial communicating groove, the communicating hole comprises a radial communicating hole and an axial communicating hole, the axial communicating groove is located on the side wall of the support, the axial communicating groove axially penetrates through the support, the radial communicating hole radially penetrates through the support, the axial communicating hole axially penetrates through the support, and the radial communicating hole is communicated with the axial communicating hole.
8. The two-way throttle valve of claim 1 wherein: the middle communicating channel comprises an axial communicating groove and a radial communicating groove, the axial communicating groove is located in the side wall of the support, the axial communicating groove penetrates through the support along the axial direction, the radial communicating groove is located in the side wall of the support, the radial communicating groove penetrates through the support along the radial direction, and the axial communicating groove is communicated with the radial communicating groove.
9. The two-way throttle valve of claim 1 wherein: the middle communicating channel comprises a radial communicating groove, the communicating hole comprises an axial communicating hole, the radial communicating groove is located in the side wall of the support, the radial communicating groove penetrates through the support along the radial direction, the axial communicating hole penetrates through the support along the axial direction, and the radial communicating groove is communicated with the axial communicating hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810194773.6A CN110242778B (en) | 2018-03-09 | 2018-03-09 | Bidirectional throttle valve |
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| CN201810194773.6A CN110242778B (en) | 2018-03-09 | 2018-03-09 | Bidirectional throttle valve |
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| CN110242778B true CN110242778B (en) | 2022-03-22 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| TWI714333B (en) * | 2019-11-04 | 2020-12-21 | 信孚產業股份有限公司 | Oil return valve group with multi-stage throttling control |
| CN113404867A (en) * | 2020-03-17 | 2021-09-17 | 盾安环境技术有限公司 | Expansion valve |
| CN111998577B (en) * | 2020-07-15 | 2025-05-23 | 盾安环境技术有限公司 | Bidirectional throttle valve |
| CN114151578A (en) * | 2020-09-07 | 2022-03-08 | 盾安环境技术有限公司 | Flow valve |
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| US5265438A (en) * | 1992-06-03 | 1993-11-30 | Aeroquip Corporation | Dual restrictor flow control |
| CN202141259U (en) * | 2011-06-23 | 2012-02-08 | 浙江同星制冷有限公司 | A bidirectional throttle valve for an air-conditioning system |
| CN202204220U (en) * | 2011-08-16 | 2012-04-25 | 浙江盾安机械有限公司 | Bidirectional throttling valve |
| CN202304140U (en) * | 2011-09-13 | 2012-07-04 | 浙江同星制冷有限公司 | Integrated bidirectional moving throttling valve |
| CN102537449A (en) * | 2011-12-07 | 2012-07-04 | 三一重型装备有限公司 | Bidirectional self-adaptive damping valve |
| CN202360824U (en) * | 2011-12-14 | 2012-08-01 | 天津海纳九洲掘进机制造有限公司 | Novel bidirectional throttle valve |
| CN102878733A (en) * | 2012-10-26 | 2013-01-16 | 温岭市恒发空调部件有限公司 | Expansion valve components, one-way expansion valve and two-way circulation expansion valve |
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| US7086413B2 (en) * | 2004-03-25 | 2006-08-08 | Honda Motor Company, Ltd. | Bi-directional damper valve for a hydraulic line, power steering system incorporating the damper valve, and methods of using same |
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| JPH02203173A (en) * | 1989-01-31 | 1990-08-13 | Nippondenso Co Ltd | Refrigerant flow rate regulator of air conditioner |
| US5265438A (en) * | 1992-06-03 | 1993-11-30 | Aeroquip Corporation | Dual restrictor flow control |
| CN202141259U (en) * | 2011-06-23 | 2012-02-08 | 浙江同星制冷有限公司 | A bidirectional throttle valve for an air-conditioning system |
| CN202204220U (en) * | 2011-08-16 | 2012-04-25 | 浙江盾安机械有限公司 | Bidirectional throttling valve |
| CN202304140U (en) * | 2011-09-13 | 2012-07-04 | 浙江同星制冷有限公司 | Integrated bidirectional moving throttling valve |
| CN102537449A (en) * | 2011-12-07 | 2012-07-04 | 三一重型装备有限公司 | Bidirectional self-adaptive damping valve |
| CN202360824U (en) * | 2011-12-14 | 2012-08-01 | 天津海纳九洲掘进机制造有限公司 | Novel bidirectional throttle valve |
| CN102878733A (en) * | 2012-10-26 | 2013-01-16 | 温岭市恒发空调部件有限公司 | Expansion valve components, one-way expansion valve and two-way circulation expansion valve |
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| CN110242778A (en) | 2019-09-17 |
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