CN209991637U - Throttle valve and air conditioner - Google Patents
Throttle valve and air conditioner Download PDFInfo
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- CN209991637U CN209991637U CN201920486003.9U CN201920486003U CN209991637U CN 209991637 U CN209991637 U CN 209991637U CN 201920486003 U CN201920486003 U CN 201920486003U CN 209991637 U CN209991637 U CN 209991637U
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Abstract
The utility model relates to a throttle valve and an air conditioner, wherein the throttle valve comprises a valve body with a flow passage, a first valve seat and a second valve seat which are sequentially arranged in the valve body, a first valve core, a second valve core and a telescopic element; the first valve seat is provided with a first channel in which the first valve core is arranged, and the second valve seat is provided with a second channel in which the second valve core is arranged; a first step part is circumferentially arranged on the inner wall of the first valve seat, and a second step part is circumferentially arranged on the inner wall of the second valve seat; the first end of the telescopic element abuts against the first end of the first valve core, the second end of the telescopic element abuts against the first end of the second valve core, the first valve core is provided with a first throttling hole communicated with the first channel, the end face of the second end of the first valve seat is sealed with the first step portion, the second valve core is provided with a second throttling hole communicated with the second channel, and the end face of the second end of the second valve seat is sealed with the second step portion. The utility model is used for increase the aperture of choke valve when pressure differential is great.
Description
Technical Field
The utility model belongs to the technical field of the air conditioner, concretely relates to a throttle valve and have air conditioner of this throttle valve for throttle in the air conditioner.
Background
The throttle valve is a throttling element in the air conditioner, during the operation process of the air conditioner, a refrigerant is compressed into high-temperature refrigerating gas in the compressor, the high-temperature refrigerating gas enters the condenser and is condensed into high-temperature and high-pressure liquid refrigerant, the high-temperature and high-pressure liquid refrigerant is changed into low-temperature and low-pressure gas-liquid two-phase refrigerant through the throttle valve, and the refrigerant absorbs heat in the evaporator and is evaporated into gaseous refrigerant. However, the throttle valve is a fixed throttle, the opening of the throttle valve cannot be adjusted, when the ambient temperature of the condenser side is high, the condensing pressure is high, the condensing temperature and the exhaust temperature are increased along with the rise of the ambient temperature due to the poor cooling effect, the air conditioner is prone to frequent shutdown due to the high pressure, the user experience and the service life of the air conditioner are affected, and meanwhile, the evaporation side is overheated due to the small refrigerant flow, and the refrigeration effect of the air conditioner is affected.
SUMMERY OF THE UTILITY MODEL
The utility model provides a choke valve and air conditioner for increase the aperture of choke valve when pressure differential is great, avoid the air conditioner frequent stop because of pressure is higher when high temperature high pressure, and increase the refrigerant flow, promote the air conditioner refrigeration effect.
In order to solve the technical problem, the utility model provides a following technical scheme solves:
a throttle valve comprises a valve body with a flow passage, a first valve seat and a second valve seat which are sequentially positioned in the valve body, wherein the first valve seat and the second valve seat are both sealed with the inner wall of the valve body and fixedly arranged in the valve body; a first step part is circumferentially arranged on the inner wall of the first valve seat, and a second step part is circumferentially arranged on the inner wall of the second valve seat; the first end of the telescopic element abuts against the first end of the first valve core, the second end of the telescopic element abuts against the first end of the second valve core, the first valve core is provided with a first throttling hole communicated with the first channel, the end face of the second end of the first valve seat is sealed with the first step portion, the second valve core is provided with a second throttling hole communicated with the second channel, and the end face of the second end of the second valve seat is sealed with the second step portion.
Further, the telescopic element is a spring.
Further, the end face of the second end of the first valve core is designed to be a conical surface, the end face of the second end of the second valve core is also designed to be a conical surface, the first step part is designed to be a conical step part which is gradually reduced towards one end of the valve body and matched with the conical surface of the first valve core, and the second step part is designed to be a conical step part which is gradually reduced towards the other end of the valve body and matched with the conical surface of the second valve core.
Further, at least two ribs axially extend along the outer wall of the first end of the first valve core at intervals, and a first diversion channel is formed between every two adjacent ribs.
Further, at least two ribs axially extend along the outer wall of the first end of the second valve core at intervals, and a second branch flow channel is formed between every two adjacent ribs.
Furthermore, a first filter screen for filtering the refrigerant flowing into the circulation channel is arranged in the valve body, and a second filter screen for filtering the refrigerant flowing out of the circulation channel is arranged in the valve body.
Further, the first filter screen and the second filter screen are formed by extrusion with the valve body.
Further, the first valve seat and the second valve seat are formed by extrusion with the valve body.
The utility model relates to an air conditioner, including condenser and evaporimeter, its characterized in that still includes as above the choke valve, the choke valve sets up between condenser and the evaporimeter.
Compared with the prior art, the utility model discloses an advantage and beneficial effect are: when the pressure differential of circulation passageway entry and export is less, the telescopic element is in initial condition, the refrigerant is in first orifice and the throttle of second orifice, when the pressure differential of circulation passageway entry and export is great, the pressure differential is greater than the concertina power that the telescopic element was applyed, the telescopic element is compressed, first case is backed down by the refrigerant and is left first step portion, the refrigerant only passes through the throttle of second orifice, pressure differential diminishes and the refrigerant flow through the choke valve increases, realize the increase of throttle valve aperture when pressure differential is great, avoid the air conditioner because of pressure is higher when high temperature high pressure frequently to shut down, and the refrigerant flow increases, promote the air conditioner refrigeration effect.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments of the present invention or the description of the prior art will be briefly described below, and it is obvious that the drawings described below are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a front view of the throttle valve of the present invention;
FIG. 2 is a cross-sectional view of the throttle valve shown in FIG. 1 taken along the direction A-A;
FIG. 3 is a front view of a first spool of the throttle valve of the present invention;
fig. 4 is a right side view of the first valve core of the throttle valve of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying 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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
The existing throttle valves are all fixed in opening degree, in order to change the opening degree of the throttle valve, the embodiment relates to a throttle valve 100, which includes a valve body 10 having a circulation passage, a first valve seat 20 and a second valve seat 30 sequentially located in the valve body 10, the first valve seat 20 and the second valve seat 30 are both sealed with the inner wall of the valve body 10 and fixedly arranged in the valve body 10, the first valve seat 20 is provided with a first passage, the second valve seat 30 is provided with a second passage, both the first passage and the second passage are communicated with the circulation passage, the throttle valve 100 further includes a first valve core 40 arranged in the first passage, a second valve core 50 arranged in the second passage and a telescopic element 60, as shown in fig. 1 and fig. 2, a first step portion 22 is circumferentially arranged on the inner wall of the first valve seat 20, and a second step portion 32 is circumferentially arranged on the inner wall of the second valve seat 30; a first end of the telescoping member 60 abuts a first end of the first valve spool 40 and a second end of the telescoping member 70 abuts a first end of the second valve spool 50; as shown in fig. 3, the first valve spool 40 has a first orifice 41 communicating with the first passage, and the end surface of the second end of the first valve seat 20 seals with the first step portion 22; the second spool 50 has a second orifice communicating with the second passage, and the end surface of the second end of the second spool 60 seals against the second step portion. The telescoping member 60 is a spring in this embodiment.
Specifically, as shown in fig. 1 and fig. 2, the first valve seat 20 and the second valve seat 30 are extruded and molded in the valve body 10, so that the first valve seat 20 and the second valve seat 30 are in interference fit with the valve body 10 to achieve sealing and fixing with the inner wall of the valve body 10, and the first valve core 40 and the second valve core 50 of the present embodiment have the same structure, and the first valve core 40 and the second valve core 50 have the same structure, but in other alternative embodiments, the structures of the first valve core 40 and the second valve core 50 may also be different, and the structures of the first valve core 40 and the second valve core 50 may also be different. Assuming that the refrigerant flows along the left side to the right side of fig. 1 in the flow channel, a first step portion 22 is circumferentially provided on the inner wall of the first valve seat 20, the first step portion 22 is tapered toward the inlet of the flow channel to form a tapered step portion, and a second step portion 32 is circumferentially provided on the inner wall of the second valve seat 30, the second step portion 32 is tapered toward the outlet of the flow channel to form a tapered step portion; as shown in fig. 3 and 4, for the sake of brief description, only the structure of the first valve core 40 is shown, the first valve core 40 has a first throttling hole 41 and at least two ribs 42 axially extending along the outer wall of the first end of the first valve core 40 at intervals, a first diversion channel is formed between adjacent ribs 42, the ribs 42 are used for positioning the first valve core 40, and when the refrigerant jacks the first valve core 40 to compress the spring, the refrigerant flows out from the first diversion channel to play a role of bypassing the refrigerant, so that the refrigerant flows more stably, and noise generated during the refrigerant flowing process is reduced, wherein as shown in fig. 3, three ribs 42 are uniformly distributed on the side wall of the first end of the first valve core 40 at intervals in the circumferential direction, and the number of the ribs 42 is not limited.
In addition, the end surface of the second end of the first valve core 40 is designed as a tapered surface 43, which ensures the sealing connection between the end surface of the second end of the first valve core 40 and the first step 22. Similarly, as shown in fig. 2, the end surface of the second end of the second valve core 50 is also designed as a tapered surface, so as to ensure the sealed connection between the end surface of the second end of the second valve core 50 and the second step portion 32. When the pressure difference between the condensation side and the evaporation side is small enough that the pressure difference is not enough to overcome the elastic force applied by the spring, the first valve core 40 is sealed with the first step portion 22, the first diversion passage is blocked, the refrigerant flows through the first throttle hole 41, the spring and the second throttle hole, the refrigerant is throttled through the first throttle hole 41 and the second throttle hole, and the second valve core 50 is sealed with the second step portion 32; when the ambient temperature of the condensation side is higher, the temperature and the pressure of the condensation side are both increased, the pressure difference between the condensation side and the evaporation side is greater than the spring force applied by the spring, when the first valve core 40 is jacked open by the refrigerant, the spring is compressed, the refrigerant flows through the first diversion channel, the spring and the second throttling hole, the refrigerant is throttled only through the second throttling hole, the second valve core 50 is still sealed with the second step part 32, the pressure difference is reduced at the moment, the temperature and the pressure of the condensation side are also reduced, the air conditioner is prevented from being frequently stopped due to high temperature and high pressure of the condensation side, the working reliability of the air conditioner is improved, the refrigerant flow increased to the evaporation side is throttled only through the second throttling hole, and the refrigeration effect of. As shown in fig. 2, to position the spring, the end of the spring that abuts the first valve spool 40 extends into the first passage and the end of the spring that abuts the second valve spool 50 extends into the second passage. As shown in fig. 2, in the present embodiment, since the first valve seat 20 and the second valve seat 30 have the same structure and the first valve core 40 and the second valve core 50 have the same structure, when the refrigerant flows in the flow passage in the right-to-left direction in fig. 1, the operation of the throttle valve 100 is similar as above, i.e., when the pressure difference between the condensation side and the evaporation side is small, the refrigerant is throttled sequentially through the second orifice and the first orifice 41, and when the pressure difference between the condensation side and the evaporation side is large enough to be greater than the spring force applied by the spring, the refrigerant is throttled only through the first orifice 41.
In order to filter impurities in the refrigerant flowing into/out of the throttle valve 100, a first filter 70 positioned outside the first valve spool 40 and a second filter 80 positioned outside the second valve spool 50 are provided in the valve body 10. Both the first filter screen 70 and the second filter screen 80 can be extruded with the valve body 10 to realize interference fit with the valve body 10. In addition, the first valve seat 20 and the second valve seat 30 may be formed by extrusion with the valve body, and are matched with the valve body 10 by a certain interference, and the valve body 10 is usually made of copper pipe.
The embodiment also relates to an air conditioner with the throttle valve 100, when the throttle valve 100 is applied between a condenser and an evaporator of the air conditioner, when the ambient temperature on the condensation side is low, the pressure difference between the condensation side and the evaporation side is small, the pressure difference is not enough to overcome the elastic force applied by a spring, and the refrigerant is throttled by the first throttle hole 41 and the second throttle hole; when the condensing side ambient temperature is higher, the condensing side temperature and the pressure are both increased, the pressure difference is larger than the spring force applied by the spring, at the moment, the first valve core 40 is jacked open by the refrigerant, the refrigerant is throttled by the second throttling hole through the first diversion passage, the pressure difference is reduced, the condensing side temperature and the pressure are also reduced, the air conditioner is prevented from being frequently shut down due to the high temperature and the high pressure of the condensing side, the working reliability of the air conditioner is improved, at the moment, the throttling is only performed through the second throttling hole, the flow of the refrigerant to the evaporating side is increased, and the refrigerating effect.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (9)
1. A throttle valve comprises a valve body with a flow passage, a first valve seat and a second valve seat which are sequentially positioned in the valve body, wherein the first valve seat and the second valve seat are both sealed with the inner wall of the valve body and fixedly arranged in the valve body; a first step part is circumferentially arranged on the inner wall of the first valve seat, and a second step part is circumferentially arranged on the inner wall of the second valve seat; the first end of the telescopic element abuts against the first end of the first valve core, the second end of the telescopic element abuts against the first end of the second valve core, the first valve core is provided with a first throttling hole communicated with the first channel, the end face of the second end of the first valve seat is sealed with the first step portion, the second valve core is provided with a second throttling hole communicated with the second channel, and the end face of the second end of the second valve seat is sealed with the second step portion.
2. The choke valve of claim 1, wherein the telescoping member is a spring.
3. The throttle valve of claim 1, wherein the end surface of the second end of the first spool is designed as a tapered surface, and the end surface of the second end of the second spool is also designed as a tapered surface, the first step portion is designed as a tapered step portion that is tapered toward one end of the valve body and matches the tapered surface of the first spool, and the second step portion is designed as a tapered step portion that is tapered toward the other end of the valve body and matches the tapered surface of the second spool.
4. The throttling valve of any one of claims 1 to 3 wherein at least two ribs extend axially spaced along the outer wall of the first end of the first spool, with a first diversion passage formed between adjacent ribs.
5. The throttling valve of any one of claims 1 to 3 wherein at least two ribs extend axially spaced along the outer wall of the first end of the second spool, with a second diversion passage formed between adjacent ribs.
6. The throttle valve according to any one of claims 1 to 3, wherein a first filter for filtering the refrigerant flowing into the flow passage is provided in the valve body, and a second filter for filtering the refrigerant flowing out of the flow passage is provided in the valve body.
7. The throttling valve of claim 6, wherein the first and second filters are extruded with the valve body.
8. The throttling valve of any of claims 1-3, wherein the first and second valve seats are extruded with the valve body.
9. An air conditioner comprising a condenser and an evaporator, further comprising a throttle valve as claimed in any one of claims 1 to 8, said throttle valve being disposed between said condenser and said evaporator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920486003.9U CN209991637U (en) | 2019-04-11 | 2019-04-11 | Throttle valve and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920486003.9U CN209991637U (en) | 2019-04-11 | 2019-04-11 | Throttle valve and air conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209991637U true CN209991637U (en) | 2020-01-24 |
Family
ID=69291218
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920486003.9U Active CN209991637U (en) | 2019-04-11 | 2019-04-11 | Throttle valve and air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209991637U (en) |
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2019
- 2019-04-11 CN CN201920486003.9U patent/CN209991637U/en active Active
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