CN106440565A - Throttling assembly for air conditioner and air conditioner - Google Patents

Throttling assembly for air conditioner and air conditioner Download PDF

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Publication number
CN106440565A
CN106440565A CN201611060897.2A CN201611060897A CN106440565A CN 106440565 A CN106440565 A CN 106440565A CN 201611060897 A CN201611060897 A CN 201611060897A CN 106440565 A CN106440565 A CN 106440565A
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CN
China
Prior art keywords
valve
coolant
throttling arrangement
valve pocket
outlet
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201611060897.2A
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Chinese (zh)
Inventor
宋家焕
李伟宁
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hisense Guangdong Air Conditioning Co Ltd
Hisense Home Appliances Group Co Ltd
Original Assignee
Hisense Kelon Electrical Holdings Co Ltd
Hisense Guangdong Air Conditioning Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hisense Kelon Electrical Holdings Co Ltd, Hisense Guangdong Air Conditioning Co Ltd filed Critical Hisense Kelon Electrical Holdings Co Ltd
Priority to CN201611060897.2A priority Critical patent/CN106440565A/en
Publication of CN106440565A publication Critical patent/CN106440565A/en
Pending legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B41/00Fluid-circulation arrangements
    • F25B41/30Expansion means; Dispositions thereof
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B41/00Fluid-circulation arrangements
    • F25B41/30Expansion means; Dispositions thereof
    • F25B41/37Capillary tubes
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B49/00Arrangement or mounting of control or safety devices
    • F25B49/02Arrangement or mounting of control or safety devices for compression type machines, plants or systems

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Air-Conditioning For Vehicles (AREA)

Abstract

The invention discloses a throttling assembly for an air conditioner and the air conditioner, and relates to the technical field of air conditioners. The invention aims to solve the problem that the throttling device of the existing air conditioner can not keep the cooling/heating capacity of the air conditioner in the optimal state all the time when the outside temperature changes. The invention relates to a throttling component for an air conditioner, which comprises: the main throttling device and the auxiliary throttling device are connected in the refrigerant circulation loop in parallel, a valve is connected to an inlet of the auxiliary throttling device, the opening degree of the valve can be adjusted according to the pressure in the refrigerant circulation loop, and the larger the pressure in the refrigerant circulation loop is, the larger the opening degree of the valve is. The invention can be used for a fixed-frequency air conditioner.

Description

A kind of air-conditioner orifice union and air-conditioner
Technical field
The present invention relates to air-conditioning technical field, more particularly, to a kind of air-conditioner orifice union and air-conditioner.
Background technology
Throttling arrangement is that one of four basic constituent system components necessary to kind of refrigeration cycle (other three realized by air-conditioner Individual for compressor, condenser and vaporizer), its effect is that the shuttling movement to cold-producing medium provides constraints, and makes condenser High pressure liquid refrigerant reduced pressure, make the reducing pressure by regulating flow entering into the cold-producing medium of vaporizer become appearance evaporable low temperature low Pressure atomized refrigerant.
A kind of coolant circulating system of existing fixed frequency air conditioner is as shown in figure 1, coolant circulating system includes being in turn connected into The compressor 01 in loop, condenser 02, throttling arrangement 03 and vaporizer 04.
At least there are the following problems for existing fixed frequency air conditioner throttling arrangement:Due to this fixed frequency air conditioner only one of which throttling arrangement 03, throttling arrangement 03 can only adjust a kind of optimal system mode (under certain environment operating mode, the refrigeration/system of air-conditioner Warm status can reach the state of setting), the refrigerating/heating ability of air-conditioner and Energy Efficiency Ratio can reach target in this state Value, but when the temperature change of environment, the temperature of condenser 02 can change, and the pressure of coolant circulating system also changes therewith Become, a throttling arrangement 03 just cannot adjust the energy of the refrigerating/heating of air-conditioner with the change of the pressure of coolant circulating system Power, at a temperature of thus appearing in certain, its refrigerating/heating ability of air-conditioning is fine, the refrigeration/system of air-conditioner at other temperature The ability of heat just has and cannot meet needs.
Content of the invention
Embodiments of the invention provide a kind of air-conditioner orifice union and air-conditioner, you can so that air-conditioner is in extraneous ring Keep preferably refrigerating/heating ability during the temperature change of border, air-conditioner long-play coolant in the case of a high temperature can be made again The pressure of closed circuit will not be exceeded.
For reaching above-mentioned purpose, The embodiment provides a kind of air-conditioner orifice union, including:Main throttling dress Put and assist throttling arrangement, described main throttling arrangement and auxiliary throttling arrangement are connected in parallel in refrigerant circulation circuit, described auxiliary The porch helping throttling arrangement is connected with valve, and described valve can adjust aperture according to the pressure size in refrigerant circulation circuit, Pressure in described refrigerant circulation circuit is bigger, and the aperture of described valve is bigger.
Air-conditioner orifice union provided in an embodiment of the present invention has the advantage that:Due to main throttling arrangement and auxiliary section Stream device is to be connected in parallel in refrigerant circulation circuit, and assists the porch of throttling arrangement to be connected with valve, when extraneous ring During the temperature change of border, the pressure in refrigerant circulation circuit also can change therewith, and valve can be according to the pressure in refrigerant circulation circuit Size adjustment aperture, changes the coolant throughput by orifice union, and then changes the coolant quantity entering in vaporizer, meet Vaporizer demand to coolant when ambient temperature changes, meanwhile, the change of valve opening can also adjust refrigerant circulation circuit In pressure size, make condenser be in the pressure keeping optimal condensation effect all the time, thus can make air-conditioner in extraneous ring Preferably refrigerating/heating ability is kept during the temperature change of border.Refrigerant circulation circuit pressure release is made by the aperture of control valve, also may be used So that refrigerant circulation circuit long-play pressure will not be exceeded in the case of a high temperature, air-conditioner would not because power is too high frequency Numerous shutdown.Therefore, by porch be provided with aperture adjustable valve auxiliary throttling arrangement in parallel with main throttling arrangement, you can so that empty Adjust device to keep preferably refrigerating/heating ability in extraneous variation of ambient temperature, air-conditioner can be made too high because of power again And frequent shutdown.
On the other hand, the embodiment of the present invention additionally provides a kind of air-conditioner, including refrigerant circulation circuit, described refrigerant circulation Loop includes compressor, condenser, orifice union and the vaporizer being sequentially connected in series into loop, and described orifice union is above-mentioned enforcement Example described in orifice union, in described orifice union main throttling arrangement and auxiliary throttling arrangement entrance respectively with described condensation Device connects, and the outlet of described main throttling arrangement and auxiliary throttling arrangement is all connected with described vaporizer.
Entrance due to throttling arrangement main in orifice union and auxiliary throttling arrangement is connected with condenser respectively, main throttling dress Put and assist the outlet of throttling arrangement to be all connected with vaporizer, when the pressure in refrigerant circulation circuit is with extraneous temperature change And when changing, the valve of auxiliary throttling arrangement porch can be according to the change of pressure in loop, the aperture of control valve, change Enter the cold medium flux in vaporizer, meanwhile, the change of valve opening can also adjust the pressure in refrigerant circulation circuit, makes cold Condenser is under the pressure keeping optimal condensation effect, and air-conditioner so can be made in extraneous variation of ambient temperature to keep preferable Refrigerating/heating ability, simultaneously by the regulation of valve opening size, the pressure in refrigerant circulation circuit can be made not exceeded.
Brief description
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing Have technology description in required use accompanying drawing be briefly described it should be apparent that, drawings in the following description be only this Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, acceptable Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is existing fixed frequency air conditioner refrigerant circulation circuit schematic diagram;
Fig. 2 is structural representation (arrow direction during the valve element closing of idle call orifice union in the embodiment of the present invention Flow direction for coolant);
Fig. 3 be the embodiment of the present invention in idle call orifice union valve element crack when structural representation (arrow direction Flow direction for coolant);
Fig. 4 is structural representation (arrow direction during the valve element standard-sized sheet of idle call orifice union in the embodiment of the present invention Flow direction for coolant);
Fig. 5 is the schematic diagram of the refrigerant circulation circuit of air-conditioner in the embodiment of the present invention.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete Site preparation description is it is clear that described embodiment is only a part of embodiment of the present invention, rather than whole embodiments.It is based on Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of not making creative work Embodiment, broadly falls into the scope of protection of the invention.
In describing the invention it is to be understood that term " " center ", " on ", D score, "front", "rear", " left ", The orientation of instruction such as " right ", " vertical ", " level ", " top ", " bottom ", " interior ", " outward " or position relationship are based on shown in the drawings Orientation or position relationship, be for only for ease of description the present invention and simplify description, rather than instruction or hint indication device or Element must have specific orientation, with specific azimuth configuration and operation, be therefore not considered as limiting the invention.
Term " first ", " second " be only used for describe purpose, and it is not intended that instruction or hint relative importance or The implicit quantity indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can be expressed or implicit Ground includes one or more this feature.In describing the invention, unless otherwise stated, " multiple " be meant that two or Two or more.
In describing the invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or is integrally connected;Right For those of ordinary skill in the art, above-mentioned term concrete meaning in the present invention can be understood with concrete condition.
Referring to Fig. 2, the air-conditioner orifice union in the embodiment of the present invention, including:Main throttling arrangement 1 and auxiliary throttling dress Put 2, main throttling arrangement 1 and auxiliary throttling arrangement 2 are connected in parallel in refrigerant circulation circuit, the entrance 21 of auxiliary throttling arrangement 2 Place is connected with valve 3, and valve 3 can adjust aperture, the pressure in refrigerant circulation circuit according to the pressure size in refrigerant circulation circuit Power is bigger, and the aperture of valve 3 is bigger.
Because main throttling arrangement 1 and auxiliary throttling arrangement 2 are to be connected in parallel in refrigerant circulation circuit, and assist throttling It is connected with valve 3, when ambient temperature changes, the pressure in refrigerant circulation circuit also can be therewith at the entrance 21 of device 2 Change, valve 3 can adjust aperture according to the pressure size in refrigerant circulation circuit, change and passed through by the coolant of orifice union Amount, and then change the coolant quantity entering in vaporizer, meet the demand when external environment changes to coolant for the vaporizer, with When, the change of valve 3 aperture can also adjust the pressure size in refrigerant circulation circuit, makes condenser be in holding all the time optimal The pressure of condensation effect, thus, it is possible to make air-conditioner keep preferably refrigerating/heating ability in extraneous variation of ambient temperature. Refrigerant circulation circuit pressure release is made by the aperture of control valve 3 it is also possible to make refrigerant circulation circuit long-time in the case of a high temperature Operating pressure will not be exceeded, air-conditioner would not because power is too high frequent shutdown.Therefore, porch is provided with aperture adjustable valve The auxiliary throttling arrangement 2 of door 3 is in parallel with main throttling arrangement 1, you can so that air-conditioner keeps relatively in extraneous variation of ambient temperature Good refrigerating/heating ability, can make again air-conditioner will not because power is too high frequent shutdown.
Wherein, the structure of valve 3 is not unique, and such as valve 3 can be electromagnetic throttle valve, the entrance of electromagnetic throttle valve with Refrigerant inlet 33 connects, and refrigerant inlet 33 is used for connecting with refrigerant circulation circuit, and the outlet of electromagnetic throttle valve is filled with auxiliary throttling Put 2 entrance 21 to connect, also located at electronic pressure gage at refrigerant inlet 33, electronic pressure gage is connected with control unit, electricity The pressure value of electromagnetic throttle valve entrance can be passed to control unit by sub- pressure gauge, and electronic pressure gage can be surveyed by control unit Pressure value adjust electromagnetic throttle valve valve element 35 aperture, thus adjust by the uninterrupted of electromagnetic throttle valve coolant and The outlet pressure of electromagnetic throttle valve.
In addition, valve 3 can also be following structure:As shown in Fig. 2 valve 3 includes valve body 31, in valve body 31, it is provided with valve pocket 32, valve body 31 is provided with the refrigerant inlet 33 connecting with valve pocket 32 and coolant first outlet 34, coolant first outlet 34 and auxiliary The entrance 21 of throttling arrangement 2 connects, and refrigerant inlet 33 is used for connecting with refrigerant circulation circuit, is provided with valve element 35, valve in valve pocket 32 Core 35 is slidably matched with the inwall of valve pocket 32, and one end of valve element 35 is connected with return unit 36, and the other end is connected with refrigerant inlet 33, Return unit 36 can apply the reset force contrary with the coolant flow direction in valve pocket 32 to valve element 35, when in refrigerant circulation circuit When pressure is less than reset force, valve element 35 is located between coolant first outlet 34 and refrigerant inlet 33, and such valve element 35 prevents cold Matchmaker enters into auxiliary throttling arrangement 2 from coolant first outlet 34, and valve 3 is closed;When the pressure in refrigerant circulation circuit When power is more than reset force, valve element 35 slides in valve pocket 32 along the direction that coolant flows, and adjusts coolant with the change of pressure The aperture of first outlet 34, thus adjust the size entering into cold medium flux in auxiliary throttling arrangement 2.Compare solenoid valve, Valve 3 structure shown in Fig. 2 is simple, it is little to take up room, and need not increase electric-control system, reduces cost.
It should be noted that:It is provided with conduit 4, valve pocket 32 is connected with refrigerant circulation circuit by conduit 4 at refrigerant inlet 33 Logical, the size of conduit 4 internal diameter can be set according to the actual needs, and conduit 4 can be made of copper.
The connected mode with refrigerant circulation circuit of main throttling arrangement 1 is not also unique, the entrance 11 of such as main throttling arrangement 1 Can be directly accessed in refrigerant circulation circuit, in addition, main throttling arrangement 1 can also access in refrigerant circulation circuit by valve 3, Specifically, as shown in Fig. 2 valve body 31 is provided with the coolant second outlet 37 connecting with valve pocket 32, coolant second outlet 37 and master The entrance 11 of throttling arrangement 1 connects, and coolant second outlet 37 is located between coolant first outlet 34 and refrigerant inlet 33, works as coolant When pressure in closed circuit is less than reset force, valve element 35 is located between coolant first outlet 34 and coolant second outlet 37, this In the main throttling arrangement 1 that sample coolant will be entered by coolant second outlet 37.The entrance 11 comparing main throttling arrangement 1 can be straight Access in refrigerant circulation circuit, main throttling arrangement 1 is accessed in refrigerant circulation circuit by valve 3, can make main throttling arrangement 1 It is integrated on valve 3 with auxiliary throttling arrangement 2, so make air-conditioner orifice union more compact structure, be easy to main throttling arrangement 1 Installation and fixation.
When the ambient temperature that air-conditioner uses rises, the temperature of the condenser in refrigerant circulation circuit also with Rise, the pressure in coincidence circuit also rises therewith, when in loop, pressure is more than reset force, valve element 35 starts to slide to the left, and Conducting coolant first outlet 34 (as shown in Figure 3), coolant enters into auxiliary throttling arrangement 2, auxiliary section from coolant first outlet 34 Stream device 2 performance throttling action in parallel together with main throttling arrangement 1, persistently rises with the pressure in loop, valve element 35 is continuous Be moved to the left, until coolant first outlet 34 fully opens (as shown in Figure 4), now by orifice union cold medium flux Greatly, the ability making the refrigerating/heating of air-conditioning reaches maximum;When the ambient temperature that air-conditioner uses declines, refrigerant circulation The temperature of the condenser in loop also declines therewith, and the pressure in coincidence circuit also declines therewith, and valve element 35 slides to the right, gradually Close coolant first outlet 34, make to reduce by assisting the cold medium flux of throttling arrangement 2, when the pressure in loop is less than reset force When valve element 35 return to initial position, coolant no longer passes through to assist throttling arrangement 2, and now coolant only passes through from main throttling arrangement 1.
To the coolant rightabout movement of flowing and coolant is avoided to coordinate with valve pocket 32 from valve element 35 to limit valve element 35 The chamber section at return unit 36 place is passed into, as shown in Figure 2 it is preferable that valve pocket 32 includes first being interconnected in gap Valve pocket section 321 and the second valve pocket section 322, the diameter with diameter greater than the second valve pocket section 322 of the first valve pocket section 321, coolant first Outlet 34 is connected with the first valve pocket section 321, and coolant second outlet 37 is connected with the second valve pocket section 322, valve element 35 and the first valve pocket Section 321 is slidably matched, and the first valve pocket section 321 and the second valve pocket section 322 junction are formed with step surface 323, when refrigerant circulation returns When pressure in road is less than reset force, valve element 35 is leant with step surface 323.By the diameter of the first valve pocket section 321 is arranged It is more than the diameter of the second valve pocket section 322, such first valve pocket section 321 and the second valve pocket section 322 junction will form step Face 323, step surface 323, when the pressure in refrigerant circulation circuit is less than reset force, can limit valve element 35 and flow to coolant Rightabout moves, and step surface 323 plays position-limiting action.Because valve element 35 is leant with step surface 323, which increase valve element 35 are just not easily accessed the first valve pocket section 321 at return unit 36 place with the contact area of valve pocket 32, coolant.
Wherein, the shape of step surface 323 end face near the second valve pocket section 322 with valve element 35 is not unique, such as step surface 323 can be plane, and valve element 35 forms cylindrical protrusions near the end face of the second valve pocket section 322, when in refrigerant circulation circuit When pressure is less than reset force, cylindrical protrusions are fitted with step surface 323.In addition, as shown in Fig. 2 step surface 323 can also be Conical step surface, valve element 35 forms conical protrusions 351, conical protrusions 351 and circle near the end face of the second valve pocket section 322 The taper of the conical surface is identical, when the pressure in refrigerant circulation circuit is less than reset force, conical protrusions 351 and conical step surface Fit.Compare step surface 323 be plane, valve element 35 near the second valve pocket section 322 end face formed cylindrical protrusions scheme, When conical protrusions 351 and conical step surface 323 cooperation, valve element 35 is bigger with the contact area of step surface 323, has preferably Sealing, stops coolant from entering into the first valve pocket section 321 thus the pressure in refrigerant circulation circuit is less than during reset force.
The species of return unit 36 is not unique, and such as return unit 36 can be leather bag cylinder, one end of leather bag cylinder and valve Core 35 connects, and the other end is connected with fixed block 38, and coolant first outlet 34 is located between fixed block 38 and refrigerant inlet 33, fixing Block 38 is connected to the inwall of valve pocket 32.When the pressure in refrigerant circulation circuit is more than reset force, coolant promotes valve element 35 to slide, Air in leather bag cylinder is compressed simultaneously, and when the pressure in refrigerant circulation circuit is less than reset force, air is compressed generation Elastic force valve element 35 can be promoted to return to initial position.
In addition, as shown in Fig. 2 return unit 36 is alternatively spring, one end of spring is connected with valve element 35, and the other end is connected with Fixed block 38, coolant first outlet 34 is located between fixed block 38 and refrigerant inlet 33, and fixed block 38 is connected to the interior of valve pocket 32 Wall, adjustable along the installation site of the direction of motion fixed block 38 of valve element 35, so pass through to adjust the installation site of fixed block 38, adjust The decrement of section spring, makes the size of spring restoring force change, and then can be with the Opening pressure of adjusting spool 35.Compare leather bag gas Cylinder, the structure of spring is simple, and reset force size is directly proportional with decrement, is more easy to the regulation with valve element 35 Opening pressure.
For the ease of adjusting the decrement of spring and the dismounting of valve element 35, as shown in Figure 2 it is preferable that fixed block 38 outer Side wall is provided with external screw thread, and the inwall of valve pocket 32 is provided with female thread, and fixed block 38 is coordinated by screw thread with valve pocket 32.Due to fixed block 38 are coordinated by screw thread with valve pocket 32, so only need to screw, by fixed block 38 and valve pocket 32, the pressure that just can adjust spring Contracting amount, and then change the Opening pressure of valve element 35, such regulative mode is simple to operate, easy to adjust;Due to valve element 35 and first Valve pocket section 321 is slidably matched, the diameter with diameter greater than the second valve pocket section 322 of the first valve pocket section 321, and such valve element 35 can only be from First valve pocket section 321 loads, and is detachably connected being set to screw thread between valve bottom and valve pocket 32, can facilitate the dismounting of valve element 35 more Change, reduce maintenance cost.
In order that air-conditioner remains optimal refrigerating/heating ability in large temperature range it is preferable that auxiliary throttles Device 2 is multiple, and on valve body 31, the glide direction along valve element 35 offers multiple coolant first outlets 34, and multiple coolant first go out Mouth 34 is connected one to one with multiple auxiliary throttling arrangements 2.If only one of which assists throttling arrangement 2, when coupled logical When coolant first outlet 34 fully opens, the pressure in refrigerant circulation circuit continues to rise, then this auxiliary throttling arrangement 2 does not just have Pressure in method regulating loop and the flow entering in vaporizer, it can thus be appreciated that an auxiliary throttling arrangement 2 makes air-conditioner Keep the temperature range of optimal refrigerating/heating ability limited, therefore, the number of auxiliary throttling arrangement 2 is set to multiple, multiple Individual coolant first outlet 34 is gradually opened successively, and air-conditioner can be made to remain optimal refrigeration/system in large temperature range Heat energy power.Wherein, the number of coolant first outlet 34 and connected auxiliary throttling arrangement 2 be 2,3 etc., here is not Limit.
Wherein, auxiliary throttling arrangement 2 can be choke valve, is arranged with connecting tube 21 (as shown in Figure 2) outside choke valve, connects One end of pipe 21 is connected with valve body 31, and the other end is connected in refrigerant circulation circuit;Auxiliary throttling arrangement 2 can also be capillary Pipe, one end of connecting tube 21 is connected to coolant first outlet 34, and the other end is connected to one end of capillary tube, the other end of capillary tube It is connected in refrigerant circulation circuit.In addition, main throttling arrangement 1 can also be choke valve or capillary tube, it is followed with valve body 31, coolant The connected mode of loop back path is identical with auxiliary throttling arrangement 2, will not be described here.
On the other hand, as shown in figure 5, the embodiment of the present invention additionally provides a kind of air-conditioner, including refrigerant circulation circuit, cold Matchmaker's closed circuit includes compressor 200, condenser 300, orifice union 100 and the vaporizer 400 being sequentially connected in series into loop, throttling Assembly 100 is the orifice union 100 described in any of the above-described embodiment, main throttling arrangement 1 and auxiliary throttling in orifice union 100 The entrance 21 of device 2 is connected with condenser 300 respectively, and the outlet of main throttling arrangement 1 and auxiliary throttling arrangement 2 is all and vaporizer 400 connections.
Entrance 21 due to throttling arrangement 1 main in orifice union 100 and auxiliary throttling arrangement 2 is connected with condenser 300 respectively Connect, the outlet of main throttling arrangement 1 and auxiliary throttling arrangement 2 is all connected with vaporizer 400, when the pressure in refrigerant circulation circuit with When the temperature change in the external world and changing, the valve 3 of auxiliary throttling arrangement 2 porch can be according to pressure in refrigerant circulation circuit Change, the aperture of control valve 3, change enter vaporizer 400 in cold medium flux, meanwhile, the change of valve 3 aperture also may be used To adjust the pressure in refrigerant circulation circuit, so that condenser 300 is under the pressure keeping optimal condensation effect, so can make Air-conditioner keeps preferably refrigerating/heating ability in extraneous variation of ambient temperature, in addition, by the tune of valve 3 aperture size Section, can make the pressure in refrigerant circulation circuit not exceeded.
The above, the only specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, and any Those familiar with the art the invention discloses technical scope in, change or replacement can be readily occurred in, all should contain Cover within protection scope of the present invention.Therefore, protection scope of the present invention should be defined by described scope of the claims.

Claims (10)

1. a kind of air-conditioner orifice union is it is characterised in that include:Main throttling arrangement and auxiliary throttling arrangement, described main section Stream device and auxiliary throttling arrangement are connected in parallel in refrigerant circulation circuit, and the porch of described auxiliary throttling arrangement is connected with valve Door, described valve can adjust aperture according to the pressure size in refrigerant circulation circuit, and the pressure in described refrigerant circulation circuit is got over Greatly, the aperture of described valve is bigger.
2. idle call orifice union according to claim 1 is it is characterised in that described valve includes valve body, described valve body Inside it is provided with valve pocket, described valve body is provided with the refrigerant inlet connecting with described valve pocket and coolant first outlet, described coolant first Outlet is connected with the entrance of described auxiliary throttling arrangement, and described refrigerant inlet is used for connecting with refrigerant circulation circuit, described valve pocket Inside it is provided with valve element, described valve element is slidably matched with the inwall of described valve pocket, one end of described valve element is connected with return unit, the other end Connect with described refrigerant inlet, described return unit can apply the reset contrary with the coolant flow direction in valve pocket to described valve element Power, when the pressure in described refrigerant circulation circuit be less than described reset force when, described valve element be located at described coolant first outlet with Between described refrigerant inlet.
3. idle call orifice union according to claim 2 is it is characterised in that described valve body is provided with described valve pocket even Logical coolant second outlet, described coolant second outlet is connected with the entrance of described main throttling arrangement, described coolant second outlet Positioned between described coolant first outlet and described refrigerant inlet, when the pressure in described refrigerant circulation circuit is less than described reset During power, described valve element is located between described coolant first outlet and described coolant second outlet.
4. idle call orifice union according to claim 3 is it is characterised in that described valve pocket includes first being interconnected Valve pocket section and the second valve pocket section, the diameter with diameter greater than described second valve pocket section of described first valve pocket section, described coolant first Outlet connect with described first valve pocket section, described coolant second outlet is connected with described second valve pocket section, described valve element with described First valve pocket section is slidably matched, and described first valve pocket section and described second valve pocket section junction are formed with step surface, when described cold When pressure in matchmaker's closed circuit is less than described reset force, described valve element is leant with described step surface.
5. idle call orifice union according to claim 4 is it is characterised in that described step surface is conical step surface, Described valve element forms conical protrusions, the cone of described conical protrusions and described taper seat near the end face of described second valve pocket section Degree is identical, when the pressure in described refrigerant circulation circuit is less than described reset force, described conical protrusions and described cone Step surface fits.
6. the idle call orifice union according to claim 4 or 5 it is characterised in that described return unit be spring, described bullet One end of spring is connected with described valve element, and the other end is connected with fixed block, and described coolant first outlet is located at described fixed block and institute State between refrigerant inlet, described fixed block is connected to the inwall of described valve pocket, along fixed block described in the direction of motion of described valve element Installation site adjustable.
7. idle call orifice union according to claim 6 is it is characterised in that the lateral wall of described fixed block is provided with outer spiral shell Stricture of vagina, the inwall of described valve pocket is provided with female thread, and described fixed block is coordinated by screw thread with described valve pocket.
8. the idle call orifice union according to any one of claim 2~5 is it is characterised in that the throttling of described auxiliary fills It is set to multiple, on described valve body, the glide direction along described valve element offers multiple described coolant first outlets, multiple described cold Matchmaker's first outlet is connected one to one with multiple described auxiliary throttling arrangements.
9. the idle call orifice union according to any one of Claims 1 to 5 is it is characterised in that described main throttling arrangement For choke valve or capillary tube;Described auxiliary throttling arrangement is choke valve or capillary tube.
10. a kind of air-conditioner, including refrigerant circulation circuit, described refrigerant circulation circuit includes the compression being sequentially connected in series into loop Machine, condenser, orifice union and vaporizer are it is characterised in that described orifice union is any one of claim 1~9 Orifice union, in described orifice union main throttling arrangement and auxiliary throttling arrangement entrance be connected with described condenser respectively, The outlet of described main throttling arrangement and auxiliary throttling arrangement is all connected with described vaporizer.
CN201611060897.2A 2016-11-24 2016-11-24 Throttling assembly for air conditioner and air conditioner Pending CN106440565A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106949674A (en) * 2017-03-27 2017-07-14 广东美的制冷设备有限公司 Throttling arrangement and its throttling method and air-conditioning system
CN107806725A (en) * 2017-12-06 2018-03-16 珠海格力电器股份有限公司 Throttling device, refrigerant circulation system and air conditioner
WO2020088447A1 (en) * 2018-10-29 2020-05-07 宁波奥克斯电气股份有限公司 Throttling apparatus and air conditioner
CN113731523A (en) * 2021-09-23 2021-12-03 潢川县鹏升畜产品有限公司 Experiment table for extracting heparin sodium crude product

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CN106949674A (en) * 2017-03-27 2017-07-14 广东美的制冷设备有限公司 Throttling arrangement and its throttling method and air-conditioning system
CN106949674B (en) * 2017-03-27 2023-10-31 广东美的制冷设备有限公司 Throttling device, throttling method thereof and air conditioning system
CN107806725A (en) * 2017-12-06 2018-03-16 珠海格力电器股份有限公司 Throttling device, refrigerant circulation system and air conditioner
CN107806725B (en) * 2017-12-06 2024-04-26 珠海格力电器股份有限公司 Throttling device, refrigerant circulating system and air conditioner
WO2020088447A1 (en) * 2018-10-29 2020-05-07 宁波奥克斯电气股份有限公司 Throttling apparatus and air conditioner
CN113731523A (en) * 2021-09-23 2021-12-03 潢川县鹏升畜产品有限公司 Experiment table for extracting heparin sodium crude product

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