CN208205525U - Superpressure flow-stop valve, throttling set and air conditioner - Google Patents

Superpressure flow-stop valve, throttling set and air conditioner Download PDF

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Publication number
CN208205525U
CN208205525U CN201820729178.3U CN201820729178U CN208205525U CN 208205525 U CN208205525 U CN 208205525U CN 201820729178 U CN201820729178 U CN 201820729178U CN 208205525 U CN208205525 U CN 208205525U
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valve
pressure
piston
fluid
capillary
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赵利东
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GD Midea Air Conditioning Equipment Co Ltd
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Guangdong Midea Refrigeration Equipment Co Ltd
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Abstract

The utility model provides a kind of superpressure flow-stop valve, throttling set and air conditioner.Wherein, superpressure flow-stop valve includes: valve body, piston and elastic component, and valve body has fluid channel and is connected to the valve body-side face of fluid channel, and fluid channel has the fluid inlet with high pressure side liquid normal open, and valve body-side face is for connecting capillary;Piston has communicating passage, and communicating passage has and the feeder connection of fluid inlet normal open and the channel outlet being selectively connected to valve body-side face;Elastic component is located at piston away from fluid-inlet side;When high-pressure side Fluid pressure is more than preset value, piston move under the effect of high-pressure side Fluid pressure to elastic component side, makes that channel outlet is staggered with valve body-side face and valve body-side face is blocked by piston side, fluid inlet and the disconnection of valve body-side face.Superpressure flow-stop valve provided by the utility model, structure is simple, not only can solve the nonadjustable problem of capillary flow rate, but also can solve the excessively high problem of expansion valve cost.

Description

Superpressure flow-stop valve, throttling set and air conditioner
Technical field
The utility model relates to air-conditioning technical fields, more specifically, are related to a kind of superpressure flow-stop valve, a kind of super including this Press the throttling set and a kind of air conditioner including the throttling set of flow-stop valve.
Background technique
The throttling set that current air-conditioning uses has capillary, throttle orifice, heating power expansion valve, electric expansion valve etc., wherein The throttling sets such as heating power expansion valve, electric expansion valve can change according to operating condition and reach self-choke effect, but cost of implementation is very It is high.And the throttling sets such as capillary, throttle orifice are very cheap, but without flow regulating power, the demand not being able to satisfy under different operating conditions.
Utility model content
The utility model aims to solve at least one of the technical problems existing in the prior art.
For this purpose, the purpose of the utility model first aspect is, a kind of superpressure flow-stop valve is provided.
The purpose of the utility model the second aspect is, provides a kind of throttling set including above-mentioned superpressure flow-stop valve.
Purpose in terms of the utility model third is, provides a kind of air conditioner including above-mentioned throttling set.
To achieve the above object, the technical solution of the utility model first aspect provides a kind of superpressure flow-stop valve, comprising: Valve body, the valve body have the valve body-side face of fluid channel and the connection fluid channel, and the fluid channel has and height The fluid inlet of side liquid normal open is pressed, the valve body-side face is for connecting capillary;Piston is set in the fluid channel, The piston has communicating passage, and the communicating passage has and the feeder connection of the fluid inlet normal open and the valve body The channel outlet that lateral aperture is selectively connected to;Elastic component is set in the fluid channel and is located at the piston and deviates from the stream Body inlet side;When high-pressure side Fluid pressure is no more than preset value, the piston is under elastic component elastic force effect to institute Fluid inlet side movement is stated, the fluid inlet, the communicating passage and valve body-side face connection are made;When high pressure side liquid When pressure is more than preset value, the piston is moved under the effect of high-pressure side Fluid pressure to the elastic component side, makes the channel Outlet is staggered with the valve body-side face and the valve body-side face is blocked by the piston side, the fluid inlet and institute State the disconnection of valve body-side face.
The superpressure flow-stop valve that the utility model above-mentioned technical proposal provides, using in valve body both ends different pressure difference and valve body Elastic component collective effect pushes the movement of valve body inner piston, realizes the capillary access refrigerant pipeline being connected with valve body-side face Or ended, to realize flow regulating effect;When specifically, according to outdoor ordinary temp and hot operation, two side pressure of valve body It is poor different, so as to cause the difference of piston position, two grades of capillary adjustings may be implemented;Using this superpressure flow-stop valve, structure Simply, it not only can solve the nonadjustable problem of capillary flow rate, but also can solve the excessively high problem of expansion valve cost, especially in the Middle East The region T3 can effectively be compatible with both T1 refrigeration and T3 refrigeration optimum operation in the case where cost is not significantly increased.
Specifically, with the raising of outdoor temperature, needing to reinforce to throttle, being just able to achieve energy when air conditioner refrigerating operation Power is more excellent.Such as T3 operating condition product, the optimal capillary pipe length L1 of T3 refrigerating operaton, the optimal capillary pipe length of T1 refrigerating operaton It is both best can not to be then compatible with T1 and T3 operation if it is single capillary by L2, usual L1 > L2;The utility model utilizes valve Elastic component collective effect in body both ends different pressure difference and valve body pushes the movement of valve body inner piston, according to outdoor ordinary temp When with hot operation, valve body both ends pressure difference is different, so as to cause the difference of piston position, realizes two grades of capillary adjustings;Specifically Ground, in refrigerating operaton, when outdoor temperature is lower, it is (high that the pressure difference at valve body both ends is insufficient to allow piston to block valve body-side face Side liquid pressure is pressed to be no more than preset value), therefore communicating passage and valve body-side among the on high-tension side fluid inlet of valve body, piston Face is connection, and the capillary access refrigerant pipeline being connected with valve body-side face, the refrigerant in refrigerant pipeline is split at this time And make part refrigerant by capillary, realize the restriction effect of big flow;As outdoor temperature increases, the pressure difference at piston both ends by Cumulative big, the pressure difference being gradually increased pushes piston to move to low-pressure side, when outdoor temperature height to a certain extent after (high pressure side liquid Pressure is more than preset value), the channel outlet of piston and the valve body-side face of valve body are staggered, and piston blocks valve body-side face, at this time Refrigerant can not flow to the capillary being connected with valve body-side face from high-pressure side, which is ended, at this time in refrigerant pipeline Refrigerant cannot be shunted by the capillary, realize the restriction effect of small flow.
In addition, the superpressure flow-stop valve that the utility model above-mentioned technical proposal provides can also have following supplementary technology special Sign:
In the above-mentioned technical solutions, it is preferable that the fluid channel penetrates through the valve body along its length, and the fluid is logical The one end of road along its length forms the fluid inlet, and the piston is set in the fluid channel and enters the fluid Mouth and the other end of the fluid channel along its length separate.
The other end of the fluid inlet of fluid channel and fluid channel along its length is separated using piston, to prevent High pressure side liquid flows to the other end of fluid channel along its length through piston.
In the above-mentioned technical solutions, it is preferable that the other end of the fluid channel along its length is equipped with valve deck, described Valve deck is connect with the valve seal, and the connector for being connected with low-pressure side refrigerant pipeline is formed on the valve deck.
Fluid channel penetrates through valve body, facilitates and is installed to piston and elastic component from the other end of fluid channel along its length In fluid channel;Valve deck is connect with valve seal, prevents the refrigerant in fluid channel from leaking from the fit-up gap of the two;In valve The connector to form connection low-pressure side refrigerant pipeline is covered, the connector of valve deck connects low-pressure side refrigerant pipeline, the fluid of valve body Entrance connects high-pressure side refrigerant pipeline, so that entire superpressure flow-stop valve is connected to high-pressure side refrigerant pipeline and low-pressure side refrigerant pipe Between road, installation of the entire superpressure flow-stop valve in refrigerant pipeline is realized, structure is simple, easy to assembly.
In the above-mentioned technical solutions, it is preferable that the valve deck has the other end by the fluid channel along its length The connecting pin in the valve body is extended to, sealing is equipped between the lateral surface of the connecting pin and the medial surface of the fluid channel Circle, connects the valve deck with the valve seal.
Using the sealing ring between the lateral surface for the connecting pin that valve deck is arranged in and the medial surface of fluid channel, valve deck is realized It is connected with valve seal, prevents fit-up gap leakage of the refrigerant in fluid channel between valve deck and valve body, structure is simple, close It is good to seal effect.
In the above-mentioned technical solutions, it is preferable that offered on the end face of the connecting pin for accommodating the elastic component Mounting groove, the elastic component are the spring being arranged between the mounting groove and the piston.
Specifically, in one end insertion mounting groove of spring, and one end of spring is fixedly connected, simultaneously with the groove bottom wall of mounting groove In the groove bottom wall of mounting groove, the other end and piston of spring connect axial limiting towards the end face of elastic component, preferably floor spring The other end is set in piston towards on the pillar formed on the end face of elastic component, to realize spring between mounting groove and piston Firm installation.
In the above-mentioned technical solutions, it is preferable that the valve deck is equipped with the through-hole for penetrating through the valve deck along its length, institute The one end for stating through-hole forms the connector, and the other end of the through-hole forms the mounting groove.
The through-hole for penetrating through valve deck along its length is formed on valve deck, the one end of through-hole forms connector, for connecting Low-pressure side refrigerant pipeline;The other end of through-hole forms mounting groove, for installing spring, so that the structure of valve deck is simple, processing It is convenient.
In the above-mentioned technical solutions, it is preferable that confined planes are formed on the end face of the connecting pin, the confined planes are used for Limit is abutted with the end face of the piston towards the elastic component when the piston is moved to the elastic component side.
The confined planes formed on the end face of connecting pin abut limit with the end face of piston towards elastic component, and limitation piston is to low Press the largest motion degree of side movement, it is ensured that when on high-tension side Fluid pressure is more than preset value, piston is on high-tension side fluid Under pressure effect when move to elastic component side, make that channel outlet is staggered with valve body-side face and valve body-side face is by piston side It blocks, fluid inlet and valve body-side face disconnect.
In the above-mentioned technical solutions, it is preferable that the fluid channel is formed on the medial surface of the fluid inlet Limited step, the limited step is used for when the piston move to the fluid inlet side and the piston is towards the stream The end face of body entrance abuts limit.
The limited step and piston that fluid channel is formed on the medial surface of fluid inlet are towards the end face of fluid inlet Abut limit, the largest motion degree that limitation piston is moved to high-pressure side, it is ensured that preset when on high-tension side Fluid pressure is no more than When value, piston is moved under the elastic force effect of elastic component to fluid inlet side, makes fluid inlet, communicating passage and valve body-side face Connection.
In any of the above-described technical solution, it is preferable that the communicating passage includes first passage section and second channel section, institute It states length direction setting and perforation piston one end along its length of the first passage section along the piston and forms described lead to Road entrance;The second channel section is connected with the first passage section far from one end of the feeder connection, and radially The lateral surface for penetrating through the piston forms the channel outlet.
Preferably, second channel section is connected with first passage section far from one end of feeder connection, and radially penetrates through The whole circle lateral surface of piston forms channel outlet, to ensure that channel outlet has biggish circulation area, it is ensured that into piston Refrigerant in communicating passage smoothly enters the capillary being connected with valve body-side face through channel outlet and by valve body-side face In.Certainly, the one or more independent logical of the lateral surface for radially penetrating through piston can also be formed in second channel section Road outlet.
In the above-mentioned technical solutions, it is preferable that the superpressure flow-stop valve further include: high-pressure side adapter tube, the high-pressure side One end of adapter tube is fixedly connected with the fluid inlet, and the other end of the high-pressure side adapter tube is formed with cold for connecting high-pressure side First high pressure side interface of matchmaker's pipeline, the second high pressure side interface for connecting the first capillary;Low-pressure side adapter tube, the low pressure The one end for flanking pipe is fixedly connected with the connector, and the other end of the low-pressure side adapter tube is formed with cold for connecting low-pressure side First low pressure side interface of matchmaker's pipeline, the second low pressure side interface for connecting first capillary and for connect second The third low pressure side interface of capillary;Capillary adapter tube, one end of the capillary adapter tube and the fixed company of the valve body-side face It connects, the other end of the capillary adapter tube is for connecting second capillary.
Realize that the fluid of superpressure flow-stop valve enters using the first high pressure side interface and the second high pressure side interface of high-pressure side adapter tube Mouthful be connected simultaneously with high-pressure side refrigerant pipeline and the first capillary, it is the first low pressure side interface for being taken over using low-pressure side, second low Press side interface and third low pressure side interface realize the connector of superpressure flow-stop valve simultaneously with low-pressure side refrigerant pipeline, the first capillary And second capillary be connected, structure is simple, easy to assembly;Preferably, the first high pressure side interface and fluid inlet are welded to connect, the One low pressure side interface and connector are welded to connect.
The technical solution of the utility model second aspect provides a kind of throttling set, comprising: such as any of the above-described technical side Superpressure flow-stop valve described in case, the superpressure flow-stop valve are connected between high-pressure side refrigerant pipeline and low-pressure side refrigerant pipeline, and The fluid inlet of the superpressure flow-stop valve is connected with the high-pressure side refrigerant pipeline;First capillary, with the superpressure flow-stop valve And it connects, and one end of first capillary is connected with the high-pressure side refrigerant pipeline, the other end and the low-pressure side refrigerant pipe Road is connected;With the second capillary, one end of second capillary is connected with the valve body-side face of the superpressure flow-stop valve, is another End is connected with the low-pressure side refrigerant pipeline.
The throttling set that the utility model above-mentioned technical proposal provides, utilizes bullet in valve body both ends different pressure difference and valve body Property part collective effect, push valve body inner piston movement, when according to outdoor ordinary temp and hot operation, valve body both ends pressure difference is not Together, so as to cause the difference of piston position, two grades of capillary adjustings are realized;Specifically, when the air conditioner is in refrigeration operation, work as outdoor temp When spending lower, the pressure difference at valve body both ends be insufficient to allow piston to block valve body-side face (high-pressure side Fluid pressure is no more than default Value), therefore the communicating passage among the on high-tension side fluid inlet of valve body, piston is connected to valve body-side face, with valve body-side The second connected capillary of face accesses refrigerant pipeline, and the first capillary and the operation of the second capillary paralleling, realize big stream at this time The restriction effect of amount;As outdoor temperature increases, the pressure difference at piston both ends is gradually increased, the pressure difference that is gradually increased push piston to Low-pressure side movement, when outdoor temperature height to a certain extent after (high-pressure side Fluid pressure more than preset value), piston blocks valve body-side Face, refrigerant can not flow to the second capillary being connected with valve body-side face from high-pressure side at this time, and the second capillary is ended, this When only the first capillary be effectively connected, realize the restriction effect of small flow;The throttling set of this structure, structure is simple, both may be used To solve the problems, such as that capillary flow rate is nonadjustable, and it can solve the excessively high problem of expansion valve cost, especially in the Middle East region T3, In the case where cost not being significantly increased, it can effectively be compatible with both T1 refrigeration and T3 refrigeration optimum operation.
The technical solution of the utility model third aspect provides a kind of air conditioner, including the pressure connected by refrigerant pipeline Contracting machine, outdoor heat exchanger, throttling set and indoor heat exchanger, the throttling set are section as described in the above technical scheme Flow device.
The air conditioner that the utility model above-mentioned technical proposal provides, because it includes the dress of throttling described in above-mentioned technical proposal It sets, thus the beneficial effect with throttling set described in above-mentioned technical proposal.
The additional aspect and advantage of the utility model will become obviously in following description section, or practical new by this The practice of type is recognized.
Detailed description of the invention
The above-mentioned and/or additional aspect and advantage of the utility model from the description of the embodiment in conjunction with the following figures will Become obvious and be readily appreciated that, in which:
Fig. 1 is the schematic view of the front view of superpressure flow-stop valve described in the utility model one embodiment;
Fig. 2 is the left view structural representation of superpressure flow-stop valve shown in Fig. 1;
Fig. 3 is the schematic cross-sectional view of superpressure flow-stop valve on state described in the utility model one embodiment;
Fig. 4 is the schematic cross-sectional view of superpressure flow-stop valve off state described in the utility model one embodiment;
Fig. 5 is the structural schematic diagram of air conditioner described in the utility model one embodiment.
Wherein, corresponding relationship of the Fig. 1 into Fig. 5 between appended drawing reference and component names are as follows:
1 superpressure flow-stop valve, 11 valve bodies, 111 fluid channels, 112 valve body-side faces, 113 fluid inlets, 114 limited steps, 12 pistons, 121 communicating passages, 122 feeder connections, 123 channel outlets, 13 springs, 14 valve decks, 141 connectors, 142 mounting grooves, 143 confined planes, 15 sealing rings, 16 high-pressure sides adapter tube, 17 low-pressure sides adapter tube, 18 capillaries adapter tube, 2 first capillaries, 3 second maos Tubule, 4 compressors, 5 outdoor heat exchangers, 6 indoor heat exchangers.
Specific embodiment
In order to be more clearly understood that the above objects, features, and advantages of the utility model, with reference to the accompanying drawing and have The utility model is further described in detail in body embodiment.It should be noted that in the absence of conflict, this Shen The feature in embodiment and embodiment please can be combined with each other.
Many details are explained in the following description in order to fully understand the utility model, still, this is practical It is novel to be implemented using other than the one described here mode, therefore, the protection scope of the utility model not by The limitation of following public specific embodiment.
With reference to the accompanying drawings 1 to Fig. 5 description according to the superpressure flow-stop valve of some embodiments of the utility model, throttling set and Air conditioner.
As shown in Figures 1 to 5, a kind of superpressure flow-stop valve 1 provided according to some embodiments of the utility model, comprising: valve Body 11, piston 12 and elastic component (such as spring 13).
Specifically, as shown in Figure 3 and Figure 4, valve body 11 has fluid channel 111 and is connected to the valve body-side of fluid channel 111 Face 112, fluid channel 111 have the fluid inlet 113 with high pressure side liquid normal open, and valve body-side face 112 is for connecting hair Tubule (the second capillary 3 as shown in Figure 5);Piston 12 is set in fluid channel 111, and piston 12 has communicating passage 121, even Circulation passage 121 has and the feeder connection 122 of 113 normal open of fluid inlet and the channel being selectively connected to valve body-side face 112 Outlet 123;Elastic component, which is set in fluid channel 111 and is located at piston 12, deviates from 113 side of fluid inlet.
Wherein, when high-pressure side Fluid pressure is no more than preset value, piston 12 enters under the effect of elastic component elastic force to fluid The movement of 113 sides of mouth, is connected to fluid inlet 113, communicating passage 121 and valve body-side face 112;When high-pressure side, Fluid pressure is more than When preset value, piston 12 is moved under the effect of on high-tension side Fluid pressure to elastic component side, makes channel outlet 123 and side of valve body Hole 112 is staggered and valve body-side face 112 is blocked by 12 side of piston, and fluid inlet 113 and valve body-side face 112 disconnect.
The utility model superpressure flow-stop valve 1 provided by the above embodiment utilizes 11 both ends of valve body different pressure difference and valve body Elastic component collective effect in 11 pushes the movement of 11 inner piston 12 of valve body, realizes that the capillary being connected with valve body-side face 112 connects Enter refrigerant pipeline or ended, to realize flow regulating effect;When specifically, according to outdoor ordinary temp and hot operation, 11 both ends pressure difference of valve body is different, and so as to cause the difference of 12 position of piston, two grades of capillary adjustings may be implemented;Using this super Flow-stop valve 1 is pressed, structure is simple, not only can solve the nonadjustable problem of capillary flow rate, but also to can solve expansion valve cost excessively high Problem, in the case where cost is not significantly increased, can effectively be compatible with both T1 refrigeration and T3 refrigeration especially in the Middle East region T3 Optimum operation.
Specifically, with the raising of outdoor temperature, needing to reinforce to throttle, being just able to achieve energy when air conditioner refrigerating operation Power is more excellent.Such as T3 operating condition product, the optimal capillary pipe length L1 of T3 refrigerating operaton, the optimal capillary pipe length of T1 refrigerating operaton It is both best can not to be then compatible with T1 and T3 operation if it is single capillary by L2, usual L1 > L2;The utility model utilizes valve Elastic component collective effect in the different pressure difference in 11 both ends of body and valve body 11 pushes the movement of 11 inner piston 12 of valve body, according to outdoor When ordinary temp and hot operation, 11 both ends pressure difference of valve body is different, so as to cause the difference of 12 position of piston, realizes capillary two Shelves are adjusted;Specifically, when the air conditioner is in refrigeration operation, when outdoor temperature is lower, the pressure difference at 11 both ends of valve body is insufficient to allow piston 12 block valve body-side face 112 (high-pressure side Fluid pressure is no more than preset value), as shown in figure 3, therefore valve body 11 is on high-tension side Communicating passage 121 among fluid inlet 113, piston 12 is connected to valve body-side face 112, with 112 phase of valve body-side face Capillary even accesses refrigerant pipeline, and the refrigerant in refrigerant pipeline is split and makes part refrigerant by capillary at this time, realizes The restriction effect of big flow;As outdoor temperature increases, the pressure difference at 12 both ends of piston is gradually increased, and the pressure difference being gradually increased pushes Piston 12 is moved to low-pressure side, when outdoor temperature height to a certain extent after (high-pressure side Fluid pressure be more than preset value), such as Fig. 4 institute Show, piston 12 blocks valve body-side face 112, and refrigerant can not flow to the capillary being connected with valve body-side face 112 from high-pressure side at this time Pipe, the capillary are ended, and the refrigerant in refrigerant pipeline cannot be shunted by the capillary at this time, realize the section of small flow Flow effect.
In one embodiment of the utility model, as shown in Figure 3 and Figure 4, fluid channel 111 penetrates through valve along its length Body 11, the one end of fluid channel 111 along its length form fluid inlet 113, and piston 12 is set in fluid channel 111 and will The other end of fluid inlet 113 and fluid channel 111 along its length separates, to prevent high pressure side liquid from flowing to through piston 12 The other end of fluid channel 111 along its length.
Further, as depicted in figs. 1 and 2, the other end of fluid channel 111 along its length is equipped with valve deck 14, valve Lid 14 and valve body 11 are tightly connected, and the connector 141 for being connected with low-pressure side refrigerant pipeline is formed on valve deck 14.
Fluid channel 111 penetrates through valve body 11, facilitates piston 12 and elastic component from along its length another of fluid channel 111 One end is installed in fluid channel 111;Valve deck 14 and valve body 11 are tightly connected, and prevent refrigerant in fluid channel 111 from the two Fit-up gap at leak;The connector 141 of connection low-pressure side refrigerant pipeline, the connector of valve deck 14 are formed on valve deck 14 141 connection low-pressure side refrigerant pipelines, the fluid inlet 113 of valve body 11 connects high-pressure side refrigerant pipeline, so that entire superpressure be stopped Stream valve 1 is connected between high-pressure side refrigerant pipeline and low-pressure side refrigerant pipeline, realizes entire superpressure flow-stop valve 1 in refrigerant pipeline Installation, structure is simple, easy to assembly.
Further, as shown in Figure 3 and Figure 4, valve deck 14 has and is extended to by the other end of fluid channel 111 along its length Connecting pin in valve body 11 is equipped with sealing ring 15, makes valve deck 14 between the lateral surface of connecting pin and the medial surface of fluid channel 111 It is tightly connected with valve body 11.
Using the sealing ring 15 between the lateral surface for the connecting pin that valve deck 14 is arranged in and the medial surface of fluid channel 111, It realizes that valve deck 14 and valve body 11 are tightly connected, prevents assembly of the refrigerant in fluid channel 111 between valve deck 14 and valve body 11 Clearance leakage, structure is simple, and sealing effect is good.
Further, as shown in Figure 3 and Figure 4, the mounting groove for accommodating elastic component is offered on the end face of connecting pin 142, elastic component is the spring 13 being arranged between mounting groove 142 and piston 12.
Specifically, in one end insertion mounting groove 142 of spring 13, and the groove bottom wall of one end of spring 13 and mounting groove 142 It is fixedly connected and axial limiting is in the groove bottom wall of mounting groove 142, the other end and piston 12 of spring 13 are towards the end face of elastic component Connection, the other end of preferably floor spring 13 are set in piston 12 towards on the pillar formed on the end face of elastic component, to realize Firm installation of the spring 13 between mounting groove 142 and piston 12.
Preferably, as shown in Figure 3 and Figure 4, through-hole of the valve deck 14 equipped with perforation valve deck 14 along its length, the one of through-hole End forms connector 141, and the other end of through-hole forms mounting groove 142.
The through-hole for penetrating through valve deck 14 along its length is formed on valve deck 14, the one end of through-hole forms connector 141, uses In connection low-pressure side refrigerant pipeline;The other end of through-hole forms mounting groove 142, for installing spring 13, so that valve deck 14 Structure is simple, easy to process.
Further, as shown in Figure 3 and Figure 4, confined planes 143 are formed on the end face of connecting pin, confined planes 143 are used for Limit is abutted with the end face of piston 12 towards elastic component when piston 12 is moved to elastic component side.
The confined planes 143 formed on the end face of connecting pin abut limit with the end face of piston 12 towards elastic component, and limitation is lived The largest motion degree that plug 12 is moved to low-pressure side, it is ensured that when on high-tension side Fluid pressure is more than preset value, piston 12 is in height Under the Fluid pressure effect of pressure side when move to elastic component side, channel outlet 123 is made to be staggered with valve body-side face 112 and valve body Lateral aperture 112 is blocked by 12 side of piston, and fluid inlet 113 and valve body-side face 112 disconnect.
Further, as shown in Figure 3 and Figure 4, fluid channel 111 is formed limited on the medial surface of fluid inlet 113 Position step 114, limited step 114 is used for when piston 12 move to 113 side of fluid inlet and piston 12 is towards fluid inlet 113 End face abut limit.
Limited step 114 that fluid channel 111 is formed on the medial surface of fluid inlet 113 and piston 12 are towards fluid The end face of entrance 113 abuts limit, the largest motion degree that limitation piston 12 is moved to high-pressure side, it is ensured that when on high-tension side fluid When pressure is no more than preset value, piston 12 is moved under the elastic force effect of elastic component to 113 side of fluid inlet, makes fluid inlet 113, communicating passage 121 and valve body-side face 112 are connected to.
In one embodiment of the utility model, as shown in Figure 3 and Figure 4, communicating passage 121 include first passage section and Second channel section, length direction setting and perforation piston 12 one end along its length of the first passage section along piston 12 are formed Feeder connection 122;Second channel section is connected with first passage section far from one end of feeder connection 122, and radially penetrates through The lateral surface of piston 12 forms channel outlet 123.
Preferably, as shown in Figure 3 and Figure 4, one end phase of the second channel section with first passage section far from feeder connection 122 Even, and radially penetrate through piston 12 whole circle lateral surface formed channel outlet 123, with ensure channel outlet 123 have compared with Big circulation area, it is ensured that into the refrigerant in the communicating passage 121 of piston 12 smoothly through channel outlet 123 and by valve body-side Face 112 enters in the capillary being connected with valve body-side face 112.
Certainly, the one or more only of the lateral surface for radially penetrating through piston 12 can also be formed in second channel section Vertical channel outlet 123.
In one embodiment of the utility model, as shown in Figure 3 and Figure 4, superpressure flow-stop valve 1 further include: high pressure flanks Pipe 16, low-pressure side adapter tube 17 and capillary adapter tube 18, specifically, one end of high-pressure side adapter tube 16 and the fixed company of fluid inlet 113 It connects, the other end of high-pressure side adapter tube 16 is formed with the first high pressure side interface for connecting high-pressure side refrigerant pipeline, for connecting Second high pressure side interface of the first capillary 2;One end of low-pressure side adapter tube 17 is fixedly connected with connector 141, low-pressure side adapter tube 17 other end is formed with the first low pressure side interface for connecting low-pressure side refrigerant pipeline, for connecting the first capillary 2 Second low pressure side interface and third low pressure side interface for connecting the second capillary 3;One end of capillary adapter tube 18 and valve body Lateral aperture 112 is fixedly connected, and the other end of capillary adapter tube 18 is for connecting the second capillary 3.
The fluid of superpressure flow-stop valve 1 is realized using the first high pressure side interface of high-pressure side adapter tube 16 and the second high pressure side interface Entrance 113 is connected with high-pressure side refrigerant pipeline and the first capillary 2 simultaneously, is flanked using the first low pressure of low-pressure side adapter tube 17 Mouthful, the second low pressure side interface and third low pressure side interface realize the connector 141 of superpressure flow-stop valve 1 simultaneously with low-pressure side refrigerant pipe Road, the first capillary 2 and the second capillary 3 are connected, and structure is simple, easy to assembly.
Preferably, as shown in Figure 3 and Figure 4, the first high pressure side interface and fluid inlet 113 are welded to connect, the first low-pressure side Interface and connector 141 are welded to connect.
As shown in figure 5, the embodiment of the utility model second aspect provides a kind of throttling set, comprising: such as above-mentioned The superpressure flow-stop valve 1 of one embodiment, the first capillary 2 and the second capillary 3, superpressure flow-stop valve 1 are connected to high-pressure side refrigerant pipe Between road and low-pressure side refrigerant pipeline, and the fluid inlet 113 of superpressure flow-stop valve 1 is connected with high-pressure side refrigerant pipeline;First mao Tubule 2 and superpressure flow-stop valve 1 simultaneously connect, and one end of the first capillary 2 is connected with high-pressure side refrigerant pipeline, the other end and low-pressure side Refrigerant pipeline is connected;One end of second capillary 3 is connected with the valve body-side face 112 of superpressure flow-stop valve 1, the other end and low-pressure side Refrigerant pipeline is connected.
The utility model throttling set provided by the above embodiment, using in 11 both ends of valve body different pressure difference and valve body 11 Elastic component collective effect pushes the movement of 11 inner piston 12 of valve body, when according to outdoor ordinary temp and hot operation, 11 liang of valve body Side pressure difference is different, so as to cause the difference of 12 position of piston, realizes two grades of capillary adjustings;Specifically, it is run in air conditioner refrigerating When, when outdoor temperature is lower, the pressure difference at 11 both ends of valve body is insufficient to allow piston 12 to block (the high pressure effluent of valve body-side face 112 Body pressure is no more than preset value), therefore communicating passage 121 and valve among the on high-tension side fluid inlet 113 of valve body 11, piston 12 Side face 112 is connection, the second capillary 3 access refrigerant pipeline being connected with valve body-side face 112, at this time the first capillary 3 parallel running of pipe 2 and the second capillary, realizes the restriction effect of big flow;As outdoor temperature increases, the pressure at 12 both ends of piston Difference is gradually increased, and the pressure difference that is gradually increased pushes piston 12 to move to low-pressure side, when outdoor temperature height to a certain extent after (high pressure Side liquid pressure is more than preset value), piston 12 blocks valve body-side face 112, and refrigerant can not flow to and valve body from high-pressure side at this time The second connected capillary 3 of lateral aperture 112, the second capillary 3 are ended, and only the first effectively conducting of capillary 2, is realized small at this time The restriction effect of flow;The throttling set of this structure, structure is simple, both can solve the nonadjustable problem of capillary flow rate, It can solve the excessively high problem of expansion valve cost again, especially in the Middle East region T3, in the case where cost is not significantly increased, Ke Yiyou Imitate both compatible T1 refrigeration and T3 refrigeration optimum operation.
The utility model throttling set provided by the above embodiment, be adjustable throttling set and non-adjustable throttling set it Between, a kind of throttling set is made, realizes half economic adjustable throttling.
Specifically, as shown in Fig. 3, Fig. 4 and Fig. 5, superpressure flow-stop valve 1 further includes high-pressure side adapter tube 16, low-pressure side adapter tube 17 With capillary adapter tube 18, one end of high-pressure side adapter tube 16 is fixedly connected (as being welded to connect) with the fluid inlet 113 of valve body 11, high The other end that pressure flanks pipe 16 is formed with the first high pressure side interface for connecting high-pressure side refrigerant pipeline and is used to connect first Second high pressure side interface of capillary 2;One end of low-pressure side adapter tube 17 and the connector 141 of valve deck 14 are welded to connect, low-pressure side The other end of adapter tube 17 is formed with the first low pressure side interface for connecting low-pressure side refrigerant pipeline, for connecting the first capillary 2 the second low pressure side interface and third low pressure side interface for connecting the second capillary 3, one end of capillary adapter tube 18 with Valve body-side face 112 is fixedly connected, and the other end is connected with the second capillary 3.
As shown in figure 5, the embodiment of the utility model third aspect provides a kind of air conditioner, including pass through refrigerant pipeline Compressor 4, outdoor heat exchanger 5, throttling set and the indoor heat exchanger 6 of connection, throttling set are such as above-described embodiment Throttling set.
The utility model air conditioner provided by the above embodiment because it includes the throttling set of above-described embodiment, thus has There is the beneficial effect of the throttling set of above-described embodiment, details are not described herein.
In some embodiments of the utility model, the air conditioner is split air conditioner, window air conditioner or shifting Dynamic formula air conditioner.Certainly, the air conditioner can also be other refrigeration equipments.
In conclusion superpressure flow-stop valve provided by the embodiment of the utility model, utilizes valve body both ends different pressure difference and valve Internal elastic component collective effect, pushes the movement of valve body inner piston;When according to outdoor ordinary temp and hot operation, valve body both ends Pressure difference is different, and so as to cause the difference of piston position, two grades of capillary adjustings may be implemented;Using this superpressure flow-stop valve, knot Structure is simple, not only can solve the nonadjustable problem of capillary flow rate, but also can solve the excessively high problem of expansion valve cost, especially in The eastern region T3 can effectively be compatible with both T1 refrigeration and T3 refrigeration optimum operation in the case where cost is not significantly increased.
In the description of the present invention, unless otherwise clearly defined and limited, term " connected ", " connection ", " Gu It is fixed " etc. shall be understood in a broad sense, for example, " connection " may be a fixed connection, may be a detachable connection, or integrally connect It connects, or electrical connection;It can be directly connected, it can also be indirectly connected through an intermediary.For the ordinary skill people of this field For member, the concrete meaning of above-mentioned term in the present invention can be understood as the case may be.
In the description of this specification, the description of term " one embodiment ", " some embodiments ", " specific embodiment " etc. Mean that particular features, structures, materials, or characteristics described in conjunction with this embodiment or example are contained at least the one of the utility model In a embodiment or example.In the present specification, schematic expression of the above terms are not necessarily referring to identical embodiment Or example.Moreover, the particular features, structures, materials, or characteristics of description can be in any one or more embodiment or examples In can be combined in any suitable manner.
The above is only the preferred embodiments of the utility model, are not intended to limit the utility model, for this field Technical staff for, various modifications and changes may be made to the present invention.Within the spirit and principle of the utility model, Any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.

Claims (12)

1. a kind of superpressure flow-stop valve characterized by comprising
Valve body, the valve body have the valve body-side face of fluid channel and the connection fluid channel, and the fluid channel has With the fluid inlet of high pressure side liquid normal open, the valve body-side face is for connecting capillary;
Piston is set in the fluid channel, and the piston has communicating passage, and the communicating passage has to enter with the fluid The feeder connection of mouth normal open, the channel outlet being selectively connected to the valve body-side face;
Elastic component is set in the fluid channel and is located at the piston and deviates from the fluid-inlet side;
When high-pressure side Fluid pressure is no more than preset value, the piston enters under elastic component elastic force effect to the fluid The movement of mouth side makes the fluid inlet, the communicating passage and valve body-side face connection;
When high-pressure side Fluid pressure is more than preset value, the piston is under the effect of high-pressure side Fluid pressure to the elastic component side Movement, makes the channel outlet be staggered with the valve body-side face and the valve body-side face is blocked by the piston side, institute It states fluid inlet and the valve body-side face disconnects.
2. superpressure flow-stop valve according to claim 1, which is characterized in that
The fluid channel penetrates through the valve body along its length, and the one end of the fluid channel along its length forms the stream Body entrance, the piston are set in the fluid channel and by the fluid inlet and the fluid channel along its length The other end separates.
3. superpressure flow-stop valve according to claim 2, which is characterized in that
The other end of the fluid channel along its length is equipped with valve deck, and the valve deck is connect with the valve seal, described The connector for being connected with low-pressure side refrigerant pipeline is formed on valve deck.
4. superpressure flow-stop valve according to claim 3, which is characterized in that
The valve deck, which has, extends to the connecting pin in the valve body, the company by the other end of the fluid channel along its length It connects and is equipped with sealing ring between the lateral surface at end and the medial surface of the fluid channel, connect the valve deck and the valve seal It connects.
5. superpressure flow-stop valve according to claim 4, which is characterized in that
The mounting groove for accommodating the elastic component is offered on the end face of the connecting pin, the elastic component is to be arranged described Spring between mounting groove and the piston.
6. superpressure flow-stop valve according to claim 5, which is characterized in that
The valve deck is equipped with the through-hole for penetrating through the valve deck along its length, and the one end of the through-hole forms the connection Mouthful, the other end of the through-hole forms the mounting groove.
7. superpressure flow-stop valve according to claim 5, which is characterized in that
Confined planes are formed on the end face of the connecting pin, the confined planes in the piston to the elastic component side for moving When with the end face of the piston towards the elastic component abut limit.
8. superpressure flow-stop valve according to claim 5, which is characterized in that
The fluid channel is formed with limited step on the medial surface of the fluid inlet, and the limited step is used in institute It states and abuts limit with the end face of the piston towards the fluid inlet when piston is moved to the fluid inlet side.
9. superpressure flow-stop valve according to any one of claim 1 to 8, which is characterized in that
The communicating passage includes first passage section and second channel section, length direction of the first passage section along the piston It is arranged and penetrates through the one end of the piston along its length and forms the feeder connection;
The second channel section is connected with the first passage section far from one end of the feeder connection, and radially penetrates through The lateral surface of the piston forms the channel outlet.
10. the superpressure flow-stop valve according to any one of claim 3 to 8, which is characterized in that further include:
One end of high-pressure side adapter tube, the high-pressure side adapter tube is fixedly connected with the fluid inlet, and the high-pressure side is taken over another One end is formed with the first high pressure side interface for connecting high-pressure side refrigerant pipeline, the second high pressure for connecting the first capillary Side interface;
One end of low-pressure side adapter tube, the low-pressure side adapter tube is fixedly connected with the connector, and the low-pressure side is taken over another End is formed with the first low pressure side interface for connecting low-pressure side refrigerant pipeline, second for connecting first capillary low Press side interface and the third low pressure side interface for connecting the second capillary;
One end of capillary adapter tube, the capillary adapter tube is fixedly connected with the valve body-side face, the capillary adapter tube The other end is for connecting second capillary.
11. a kind of throttling set characterized by comprising
Superpressure flow-stop valve as described in any one of claims 1 to 10, the superpressure flow-stop valve are connected to high-pressure side refrigerant pipe Between road and low-pressure side refrigerant pipeline, and the fluid inlet of the superpressure flow-stop valve is connected with the high-pressure side refrigerant pipeline;
First capillary, and the superpressure flow-stop valve and connects, and one end of first capillary and the high-pressure side refrigerant pipe Road is connected, the other end is connected with the low-pressure side refrigerant pipeline;With
Second capillary, one end of second capillary is connected with the valve body-side face of the superpressure flow-stop valve, the other end with The low-pressure side refrigerant pipeline is connected.
12. a kind of air conditioner, which is characterized in that including the compressor, outdoor heat exchanger, throttling dress connected by refrigerant pipeline It sets and indoor heat exchanger, the throttling set is throttling set as claimed in claim 11.
CN201820729178.3U 2018-05-16 2018-05-16 Superpressure flow-stop valve, throttling set and air conditioner Active CN208205525U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201820729178.3U CN208205525U (en) 2018-05-16 2018-05-16 Superpressure flow-stop valve, throttling set and air conditioner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201820729178.3U CN208205525U (en) 2018-05-16 2018-05-16 Superpressure flow-stop valve, throttling set and air conditioner

Publications (1)

Publication Number Publication Date
CN208205525U true CN208205525U (en) 2018-12-07

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201820729178.3U Active CN208205525U (en) 2018-05-16 2018-05-16 Superpressure flow-stop valve, throttling set and air conditioner

Country Status (1)

Country Link
CN (1) CN208205525U (en)

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