CN106662261B - Four-way switching valve and refrigerating plant - Google Patents
Four-way switching valve and refrigerating plant Download PDFInfo
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- CN106662261B CN106662261B CN201580039750.2A CN201580039750A CN106662261B CN 106662261 B CN106662261 B CN 106662261B CN 201580039750 A CN201580039750 A CN 201580039750A CN 106662261 B CN106662261 B CN 106662261B
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- guide pipe
- valve
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
- F16K11/06—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements
- F16K11/065—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/12—Actuating devices; Operating means; Releasing devices actuated by fluid
- F16K31/42—Actuating devices; Operating means; Releasing devices actuated by fluid by means of electrically-actuated members in the supply or discharge conduits of the fluid motor
Abstract
A kind of four-way switching valve and refrigerating plant with uniform voltage function are inexpensively provided.Guiding mechanism (70) is used to produce pressure differential between the first room (55) of four-way switching valve main body mechanism (50) and second Room (56).Guiding mechanism (70) is configured to switch between first state, the second state and the third state, the first state refers to make the high state of the pressure of the pressure ratio second Room (56) of the first room (55) to form positive status, second state refers to the high state of the pressure for the room of pressure ratio first (55) for making second Room (56) to form inverse state, and the third state refers to connect first port (12a) and the state of the 4th port (12d).
Description
Technical field
The present invention relates to four-way switching valve and refrigerating plant.
Background technology
So far known to have a kind of refrigerating plant, it is by using four-way switching valve to outdoor heat converter or indoor heat exchange
Device supply carries out the switching of cooling operation and heating operation from the high-temperature high-pressure refrigerant of compressor discharge.In such refrigeration
In device, during in order to reduce defrosting because of the switching of four-way switching valve and caused by noise, such as can contemplate and make motor-driven valve standard-sized sheet
To carry out even pressure.But if opening motor-driven valve and carrying out even pressure, liquid refrigerant can be from condenser side towards evaporator effluent
It is dynamic, cause to make the performance of defrosting to reduce.It is contemplated that the gas side loop in refrigerating circuit installs by-passing valve and uses by-passing valve
To carry out even pressure, even pressure is carried out with motor-driven valve like this to substitute.But if set by-passing valve, can because part increase and
The complication of pipe arrangement and cause cost increase.
Thus, for example, the four-way switching as described in patent document 1 (Japanese Patent Laid-Open 2001-116384 publications)
Valve is such, it may be considered that on four-way switching valve increase by-passing valve function come the increase of suppression component and the complication of pipe arrangement from
And reduce cost.
The content of the invention
The technical problems to be solved by the invention
However, the four-way switching valve described in patent document 1 employs built-in stepping motor, the control pair by complexity
The expensive mechanism that valve element switches over, therefore, substituted even with the four-way switching valve described in patent document 1 using cheap
Four-way switching valve and by-passing valve, also can less expect to reduce the effect of cost.
The problem of the present invention is inexpensively to provide four-way switching valve and refrigerating plant with uniform voltage function.
Technical scheme used by solution technical problem
The four-way switching valve of first technical scheme of the invention includes：Four-way switching valve main body mechanism, the four-way switching valve
Main body mechanism has valve element, the first Room and second Room, by pressure official post valve element between the first Room and second Room move come
Switched between positive status and inverse state, the positive status refers to connect first port and second port and is connected the 3rd port
With the state of the 4th port, the inverse state refers to connect first port and the 3rd port and is connected second port and the 4th port
State；And guiding mechanism, the guiding mechanism are used to make between the first Room of four-way switching valve main body mechanism and second Room
Pressure differential is produced, guiding mechanism is configured to switch between first state, the second state and the third state, and described first
State refers to make the high state of the pressure of the pressure ratio second Room of the first Room to form positive status, and second state refers to
Make the high state of the pressure of the Room of pressure ratio first of second Room to form inverse state, the third state refers to connection first
The state of port and the 4th port.
In the four-way switching valve of the first technical scheme, the third state is switched to make first port by being directed to mechanism
Connected with the 4th port, accordingly, it is capable to be connected to the stream of first port by four-way switching valve and be connected to the 4th port
Stream, which is formed, presses.
The four-way switching valve of second technical scheme of the invention is on the basis of the four-way switching valve of the first technical scheme, is led
Have to mechanism：It is connected to the first guide pipe of first port；It is connected to the 4th guide pipe of the 4th port；And for connecting
The guide valve of first guide pipe and the 4th guide pipe.
In the four-way switching valve of the second technical scheme, guiding mechanism is with guide valve connection first port and the 4th port
Simple structure, accordingly, it is capable to inexpensively realize the guiding mechanism of connection first port and the 4th port.
The four-way switching valve of 3rd technical scheme of the invention is on the basis of the four-way switching valve of the second technical scheme, is led
Also have to mechanism：It is connected to the second guide pipe of the first Room；And the 3rd guide pipe of second Room is connected to, in first state
In, the first guide pipe and the second guide pipe are connected using guide valve, and the 3rd guide pipe and the 4th guide pipe are connected, in the second shape
In state, the first guide pipe and the 3rd guide pipe are connected using guide valve, and connect the second guide pipe and the 4th guide pipe.
In the four-way switching valve of the 3rd technical scheme, guide valve can not only be used to carry out the switching to the third state,
The switching to first state and the second state can be carried out using guide valve, accordingly, it is capable to simplify the structure of guiding mechanism.
The four-way switching valve of 4th technical scheme of the invention is led on the basis of the four-way switching valve of the 3rd technical scheme
Also have to mechanism：Guide chamber, the guide chamber are led formed with being connected to the first opening portion of the first guide pipe, be connected to second
To the second opening portion of pipe, be connected to the 3rd opening portion of the 3rd guide pipe and be connected to the 4th guide pipe the 4th opening
Portion；And guide valve drive division, the guide valve drive division drive guide valve, guide valve is configured to：Driven by guide valve
Portion makes the second opening portion turn into open state and the 3rd opening portion of connection and the 4th opening portion in the state of being moved to first position,
The 3rd opening portion is set to be opened as open state and connection second being moved to by guide valve drive division in the state of the second place
Oral area and the 4th opening portion, at least turn into the 4th opening portion being moved to by guide valve drive division in the state of the 3rd position
Open state.
In the four-way switching valve of the 4th technical scheme, it is directed to valve by using guide valve drive division and is moved from first position
To the 3rd position, four-way switching valve can be made to be switched in first state between the third state, accordingly, it is capable to which inexpensively realization can
In the guide valve drive division of first state to the guiding mechanism switched between the third state.
The four-way switching valve of 5th technical scheme of the invention is on the basis of the four-way switching valve of the 4th technical scheme, is led
To mechanism make first position, the second place and the 3rd position it is dead in line on, and guide valve drive division makes the guide valve be in
It is linear mobile.
In the four-way switching valve of the 5th technical scheme, by making guide valve linearly move, four-way switching valve can be made
Switched in first state between the third state, accordingly, it is capable to make the structure of guide valve drive division become simple.
The four-way switching valve of 6th technical scheme of the invention is on the basis of the four-way switching valve of the 5th technical scheme, is led
Have to valve drive division：It is fixed on the first plunger of guide valve；And the distance separated with the predetermined portion of guide chamber can be adjusted
The second plunger, guide valve drive division controls the position of the first plunger and the second plunger with the first state of a control, the 3rd control
Switched between state and the second state of a control, guide valve is moved to the 3rd position, first control from first position
State processed refers to the most long state of the distance from guide valve to predetermined portion, and the three control-state refers to from guide valve to rule
Determine the most short state of the distance at position, second state of a control refers to that the distance from guide valve to predetermined portion is in the first control
State between state processed and three control-state.
In the four-way switching valve of the 6th technical scheme, the position of the first plunger in guide chamber and the second plunger is carried out
Control so that guide valve moves, accordingly, it is capable to be moved with the realization of simple mechanism between first position, the second place and the 3rd position
The linear movement of dynamic guide valve.
The refrigerating plant of 7th technical scheme of the invention includes：There is four-way to cut for four-way switching valve, the four-way switching valve
Valve body mechanism and guiding mechanism are changed, the four-way switching valve main body mechanism has valve element, the first Room and second Room, and passes through
Pressure official post valve element between one Room and second Room is moved to be switched between positive status and inverse state, and the positive status is
Refer to connection first port and with second port and be connected the state of the 3rd port and the 4th port, the inverse state refers to connection first
Port and the 3rd port are simultaneously connected the state of second port and the 4th port, and the guiding mechanism is used to make four-way switching valve main body
Pressure differential is produced between first Room of mechanism and second Room；Compressor, the compressor is via first port by the system after compression
Cryogen is discharged, and sucks refrigerant via the 4th port；Outdoor heat converter, the outdoor heat converter are connected to the second end
Mouthful；And indoor heat converter, the indoor heat converter are connected to the 3rd port；Guiding mechanism is configured in the first shape
Switched between state, the second state and the third state, the first state refers to make the first Room to form positive status
The high state of the pressure of pressure ratio second Room, second state refer to form inverse state and make the pressure ratio the of second Room
The high state of the pressure of one Room, the third state refer to connect first port and the state of the 4th port.
In the refrigerating plant of the 7th technical scheme, by be directed to mechanism switch to the third state make first port with
4th port connects, accordingly, it is capable to be connected to the stream of first port by four-way switching valve and be connected to the stream of the 4th port
Road, which is formed, presses, wherein, by the cold-producing medium stream after compressor compresses through first port, the cold-producing medium stream of compressor suction is through the 4th
Port.
The refrigerating plant of 8th technical scheme is the guiding mechanism tool to the refrigerating plant of the 7th technical scheme
Have：It is directly connected in the first guide pipe of first port；It is directly connected in the 4th guide pipe of the 4th port；And for connecting
The guide valve of first guide pipe and the 4th guide pipe.
The refrigerating plant of 9th technical scheme is on the basis of the refrigerating plant of the 7th technical scheme, is also had：First
Refrigerant piping, the first port of the first refrigerant piping connection four-way switching valve and the outlet of compressor；And the
Two refrigerant pipings, the 4th port of the second refrigerant pipe arrangement connection four-way switching valve and the suction inlet of compressor, are oriented to
Mechanism has：It is connected to the first guide pipe of the first refrigerant piping；It is connected to the 4th guide pipe of second refrigerant pipe arrangement；With
And for connecting the guide valve of the first guide pipe and the 4th guide pipe.
The refrigerating plant of tenth technical scheme is on the basis of the refrigerating plant of the 7th technical scheme, also with the first system
Cryogen pipe arrangement, the first port of the first refrigerant piping connection four-way switching valve and the outlet of compressor, guiding mechanism
Have：It is connected to the first guide pipe of the first refrigerant piping；It is directly connected in the 4th guide pipe of the 4th port；And it is used for
Connect the guide valve of the first guide pipe and the 4th guide pipe.
The refrigerating plant of 11st technical scheme is on the basis of the refrigerating plant of the 7th technical scheme, also with second
Refrigerant piping, the 4th port of the second refrigerant pipe arrangement connection four-way switching valve and the suction inlet of compressor, Guiding machine
Structure has：It is directly connected in the first guide pipe of first port；It is connected to the 4th guide pipe of second refrigerant pipe arrangement；And use
In the guide valve for connecting the first guide pipe and the 4th guide pipe.
Invention effect
Four-way switching valve or the 7th technical scheme to the 11st technical scheme of the invention in the first technical scheme of the invention
Any refrigerating plant in, by four-way switching valve itself can be connected to first port stream and be connected to the 4th port
Stream, which is formed, presses, thus, for example can save for making first port and the 4th port form the by-passing valve pressed, can with it is low into
This realization connects first port and forms the additional function pressed with the 4th port.
In the four-way switching valve of the second technical scheme of the invention, by using cheap guiding mechanism, cost can be reduced.
In the four-way switching valve of the 3rd technical scheme of the invention, connection first port and the 4th port can be inexpensively realized
And form the function of pressing.
In the four-way switching valve of the 4th technical scheme of the invention, by inexpensively realizing guiding mechanism, reduction can be reached
The purpose of cost.
In the four-way switching valve of the 5th technical scheme of the invention, four-way switching can be easily formed in a manner of more cheap
Valve.
In the four-way switching valve of sixth embodiment of the invention, the structure and control that can make guide valve drive division simplify.
Brief description of the drawings
Fig. 1 is used for the cooling operation of refrigerating plant and the signal loop of defrosting operating for illustrating an embodiment of the present invention
Figure.
Fig. 2 is the loop diagram for illustrating the heating operation of the refrigerating plant of an embodiment.
Fig. 3 is the partial sectional view of the four-way switching valve of the refrigerating plant of enlarged drawing 2.
Fig. 4 is the partial sectional view of the four-way switching valve of the refrigerating plant of enlarged drawing 1.
Fig. 5 is the schematic sectional view for illustrating the state of the guiding mechanism of Fig. 3 four-way switching valve.
Fig. 6 is the schematic sectional view for illustrating the state of the guiding mechanism of Fig. 4 four-way switching valve.
Fig. 7 is the schematic sectional view for illustrating the state for pressing guiding mechanism when making.
Fig. 8 is the loop diagram for illustrating the state for pressing refrigerating plant when making.
Fig. 9 is the loop diagram for illustrating the state for the refrigerating plant for pressing variation 1D when making.
Figure 10 is the loop diagram for illustrating the state for the refrigerating plant for pressing variation 1E when making.
Figure 11 is the loop diagram for illustrating the state for the refrigerating plant for pressing variation 1F when making.
Embodiment
(1) overall structure
Fig. 1 and Fig. 2 represents the refrigerating plant of an embodiment of the present invention.As shown in Figures 1 and 2, refrigerating plant 10 includes
Compressor 11, four-way switching valve 12, outdoor heat converter 13, expansion mechanism 14, storage tank 15 and indoor heat converter 16.Refrigeration dress
10 are put to be made up of outdoor unit 20 and indoor set 30.Compressor 11, four-way switching valve 12, outdoor heat exchange are provided with outdoor unit 20
Device 13, expansion mechanism 14 and storage tank 15.In addition, indoor heat converter 16 is provided with indoor set 30.Hereinafter, with to the present invention
The flowing of the refrigerant of important refrigerating plant 10, which is attached most importance to, to be illustrated, omit refrigerating plant 10 flowing of air-flow etc. other
Partial explanation.For example, omit the explanation of the outdoor fan included on refrigerating plant 10 and indoor fan (not shown).
The loop structure of (1-1) refrigerating plant 10
The outlet 11a of compressor 11 is connected with the first port 12a of four-way switching valve 12.The second of four-way switching valve 12
Port 12b is connected with the first gateway 13a of outdoor heat converter 13.Second gateway 13b of outdoor heat converter 13 with it is swollen
First gateway 14a connections of swollen mechanism 14.Second gateway 14b of expansion mechanism 14 goes out with the first of indoor heat converter 16
Entrance 16a connections.Second gateway 16b of indoor heat converter 16 is connected with the 3rd gateway 12c of four-way switching valve 12.Four
4th port 12d of direction changeover valve 12 is connected with the gas access 15a of storage tank 15.The gas vent 15b and compressor of storage tank 15
11 suction inlet 11b connections.
The substantially situation of the action of (1-2) refrigerating plant 10
The different operating states of refrigerating plant 10 are illustrated in fig. 1 and 2.Refrigerating plant 10 utilizes four-way switching valve 12
Can cooling operation and heating operation of the switching for interior.Connection status or defrosting when state shown in Fig. 1 is cooling operation
Connection status during operating.In addition, the connection status when state shown in Fig. 2 is heating operation.
(1-2-1) cooling operation and defrosting operating
In the state shown in Fig. 1, the first port 12a of four-way switching valve 12 connects with second port 12b, the 3rd port
12c connects with the 4th port 12d.Like this, the first port 12a of four-way switching valve 12 connects with second port 12b, therefore,
The first gateway 13a via four-way switching valve 12 from outlet 11a to the outdoor heat converter 13 of compressor 11 turns into high pressure
Gas line (is represented) with thick line.The high-temperature high-pressure gas refrigerant flowed into from the first gateway 13a of outdoor heat converter 13
Heat is lost to condense by the heat exchange between outdoor air when flowing through outdoor heat converter 13.Flow through outdoor heat converter
13 flow into the first gateway 14a of expansion mechanism 14 from the high pressure liquid refrigerant of the second gateway 13b outflows, therefore, outdoor
Turn into high-pressure liquid line between second gateway 13b of heat exchanger 13 and the first gateway 14a of expansion mechanism 14 (with void
Line represents).The high pressure liquid refrigerant of inflow expansion mechanism 14 turns into the liquid of low-temp low-pressure after being expanded in expansion mechanism 14
Refrigerant.The low temperature low pressure liquid refrigerants inflow indoor heat exchanger 16 flowed out from the second gateway 14b of expansion mechanism 14
The first gateway 16a, therefore, the second gateway 14b of expansion mechanism 14 and the first gateway 16a of indoor heat converter 16
Between turn into low-pressure gas pipeline (being represented with chain-dotted line).The low temperature flowed into from the first gateway 16a of indoor heat converter 16
Low pressure liquid refrigerant is handed over by the heat between room air when flowing through indoor heat converter 16 and obtains heat to evaporate.Flow through
Indoor heat converter 16 is from the gas refrigerants of the second gateway 16b low-temp low-pressures flowed out via the 3rd of four-way switching valve 12
Port 12c, the 4th port 12d and storage tank 15 flow into the suction inlet 11b of compressor 11, therefore, the second of indoor heat converter 16
Turn into low-pressure gas pipeline (indicated by the solid line) between gateway 16b and the suction inlet 11b of compressor 11.
(1-2-2) heating operation
In the state shown in Fig. 2, the first port 12a of four-way switching valve 12 connects with the 3rd port 12c, second port
12b connects with the 4th port 12d.Like this, the first port 12a of four-way switching valve 12 connects with the 3rd port 12c, therefore,
The second gateway 16b via four-way switching valve 12 from outlet 11a to the indoor heat converter 16 of compressor 11 turns into high pressure
Gas line (is represented) with thick line.The high-temperature high-pressure gas refrigerant flowed into from the second gateway 16b of indoor heat converter 16
Heat is lost to condense by the heat exchange between room air when flowing through indoor heat converter 16.Flow through indoor heat converter
16 flow into the second gateway 14b of expansion mechanism 14 from the high pressure liquid refrigerant of the first gateway 16a outflows, therefore, indoor
Turn into high-pressure liquid line between first gateway 16a of heat exchanger 16 and the second gateway 14b of expansion mechanism 14 (with void
Line represents).The high pressure liquid refrigerant of inflow expansion mechanism 14 turns into the liquid of low-temp low-pressure after being expanded in expansion mechanism 14
Refrigerant.The low temperature low pressure liquid refrigerants inflow outdoor heat exchanger 13 flowed out from the first gateway 14a of expansion mechanism 14
The second gateway 13b, therefore, the first gateway 14a of expansion mechanism 14 and the second gateway 13b of outdoor heat converter 13
Between turn into low-pressure gas pipeline (being represented with chain-dotted line).The low temperature flowed into from the second gateway 13b of outdoor heat converter 13
Low pressure liquid refrigerant is handed over by the heat between outdoor air when flowing through outdoor heat converter 13 and obtains heat to evaporate.Flow through
Outdoor heat converter 13 is from the gas refrigerants of the first gateway 13a low-temp low-pressures flowed out via the second of four-way switching valve 12
Port 12b, the 4th port 12d and storage tank 15 flow into the suction inlet 11b of compressor 11, therefore, the first of outdoor heat converter 13
Turn into low-pressure gas pipeline (indicated by the solid line) between gateway 13a and the suction inlet 11b of compressor 11.
The switching of (1-2-3) to defrosting operating
When performing heating operation (Fig. 2 state), in order to remove the frost of outdoor heat converter 13, switch four-way temporarily
Switching valve 12 is to become Fig. 1 state from Fig. 2 state.
So far, into during defrosting operating and from defrosting operating return to heating operation when, in order to reduce four-way switching valve production
Raw noise, the valve standard-sized sheet of expansion mechanism is pressed.Therefore, along with it is such press when expansion mechanism valve
Standard-sized sheet, such as the liquid refrigerant of high pressure result in the decline of defrosting performance towards Fig. 2 arrow Ar1 direction movement.When thinking
When preventing such unfavorable condition, so far, such as outlet and compression of the by-passing valve 19 for bypass compressor are provided with
The suction inlet of machine.But if setting by-passing valve 19, number of components increase, pipe arrangement becomes complicated, result in cost increase.
In the present invention, the pressure for defrosting operating is carried out using four-way switching valve 12.Hereinafter, to diligent with pressure
The structure of the four-way switching valve 12 of energy and action are described in detail.
(2) four-way switching valve 12
The structure of (2-1) four-way switching valve 12
The structure of four-way switching valve 12 is illustrated with Fig. 3 and Fig. 4.Four-way switching valve 12 is by four-way switching valve main body machine
Structure 50 and guiding mechanism 70 are formed.First port 12a, second port 12b, the 3rd port 12c and the 4th of four-way switching valve 12
Port 12d is connected with four-way switching valve main body mechanism 50.
(2-1-1) four-way switching valve main body mechanism 50
Four-way switching valve main body mechanism 50 has main part 51, valve element 52, the first partition member 53 and the second partition member
54.Main part 51 is formed by columnar side 51a, the first lid 51b and the second lid 51c.Columnar side 51a end
The opening portion in face is by the first lid 51b and the second lid 51c obstructions.In addition, the inside of main part 51 is except first port 12a,
Two-port netwerk 12b, the 3rd port 12c, the 4th port 12d, the second guide pipe 82 for being connected to the first lid 51b and it is connected to the second lid
Without the confined space of outlet beyond 51c the 3rd guide pipe 83.
First partition member 53 of the bottomed tube abutted very close to each otherly with columnar side 51a inner peripheral surface and
Two compartment component 54 is configured at the inside of main part 51 in a manner of it can be slided along side 51a.These first partition members 53
Valve element 52 is configured between the second partition member 54, the both ends of valve element 52 are fixed on the first partition member 53 and second and separate structure
Part 54.Therefore, valve element 52 by the first partition member 53 and the second partition member 54 a side pressing and by the opposing party drawing and
In the internal slide of main part 51.
The space that 51b and side 51a encirclements are covered by the first partition member 53, first is that do not have in addition to the second guide pipe 82
There is the confined space of outlet, it forms the first Room 55.If supplied from the second guide pipe 82 by the refrigerant of high pressure to described first
Room 55 and make the pressure in the space that the pressure ratio of the first Room 55 is provided with valve element 52 high, then the first partition member 53 by towards and first
Cover the power in the direction of 51b separation.On the contrary, if the refrigerant of low pressure is supplied to first Room 55 from the second guide pipe 82 and made
The pressure that the pressure ratio of first Room 55 is provided with the space of valve element 52 is low, then the first partition member 53 is by towards close to the first lid 51b
Direction power.
Similarly, it is except the 3rd guide pipe by the second partition member 54, second lid 51c and side 51a spaces surrounded
Without the confined space of outlet beyond 83, it forms second Room 56.If from the 3rd guide pipe 83 by the refrigerant of high pressure supply to
The second Room 56 and make the pressure in the space that the pressure ratio of second Room 56 is provided with valve element 52 high, then the second partition member 54 by
Towards the power in the direction separated with the second lid 51c.If on the contrary, supplied from the 3rd guide pipe 83 by the refrigerant of low pressure to described second
Room 56 and make that the pressure in the space that the pressure ratio of second Room 56 is provided with valve element 52 is low, then the second partition member 54 is by towards close to the
The power in two lid 51c direction.
Connecting portion 52a is provided with valve element 52, connecting portion 52a is provided with recess 52aa.Two relative with the recess 52aa
Individual port is configured to the structure connected by connecting portion 52a.That is, in the state shown in Fig. 3, the 3rd port 12c and
Four port 12d are connected by connecting portion 52a, and in the state shown in Fig. 4, second port 12b and the 4th port 12d are by connecting portion
52a connections.
In addition, first port 12a is connected to the central portion of main part 51, therefore, even if valve element 52 is close to the as shown in Figure 3
Two lid 51c, valve element as shown in Figure 4 52 are close to the first lid 51b, first port 12a also towards the first partition member 53 and second point
Space opening between component 54.Therefore, in valve element 52 as shown in Figure 3 in the state of the second lid 51c, connection portion
The 3rd port 12c and the 4th port 12d of 52a coverings have cut off the connection with first port 12a, first port 12a and second
Port 12b is connected.In addition, in valve element 52 as shown in Figure 4 in the state of the first lid 51b, the second of connection portion 52a coverings
Port 12b and the 4th port 12d has cut off the connection with first port 12a, and first port 12a connects with the 3rd port 12c.
Four-way switching valve main body mechanism 50 is oriented to guiding mechanism 70 by the first guide pipe 81, the second guide pipe the 82, the 3rd
This four pipe connections of the guide pipe 84 of pipe 83 and the 4th.First guide pipe 81 is connected to the first separation structure via first port 12a
Space between the partition member 54 of part 53 and second, the 4th guide pipe 84 are connected to the recessed of connecting portion 52a via the 4th port 12d
Portion 52aa.In addition, the break-through first of the second guide pipe 82 lid 51b is connected with the first Room 55, the break-through second of the 3rd guide pipe 83 lid 51c
It is connected with second Room 56.
(2-1-2) guiding mechanism 70
Fig. 5, Fig. 6 and Fig. 7 are the signal enlarged drawings of the major part of guiding mechanism.When illustrating cooling operation in Figure 5
Or the state of the guiding mechanism 70 during defrosting operating.The state of guiding mechanism 70 when illustrating heating operation in figure 6.This
Outside, the state of the guiding mechanism 70 when pressing is illustrated in the figure 7.Guiding mechanism 70 is oriented to except the first guide pipe 81, second
Also there is guide body 71, guide valve 72, the first post beyond this four pipe 82, the 3rd guide pipe 83 and the 4th guide pipe 84 pipes
Fill in the 73, second plunger 74 and guide valve drive division 75.Formed with guide chamber 71a in guide body 71.The guide chamber 71a is
Without the closed of gateway in addition to the first guide pipe 81, the second guide pipe 82, the 3rd guide pipe 83 and the 4th guide pipe 84
Space.
In guide chamber 71a, formed with being connected to the first opening portion 76 of the first guide pipe 81, be connected to the second guide pipe
82 the second opening portion 77, the 3rd opening portion 78 of the 3rd guide pipe 83 is connected to, the 4th of the 4th guide pipe 84 is connected to and opens
Oral area 79.In addition, the second opening portion 77, the 4th opening portion 79 and the 3rd opening portion 78 are according to the sequence along the length of guide body 71
Degree direction is arranged in a straight line.
In addition, it is configured with guide chamber 71a along the second opening portion 77, the 4th opening portion 79 and the 3rd opening portion 78
The guide valve 72 that orientation is moved in a straight line.Formed with recess 72a on guide valve 72.
In addition, the first plunger 73 and the second plunger 74 are accommodated with guide chamber 71a.With guide valve 72, the first plunger 73
And second the order of plunger 74 be arranged, and guide valve 72 is fixed on the first plunger 73.First plunger 73 and the second plunger 74
It is installed on guide valve drive division 75.The guide valve drive division 75 is moved by mobile first plunger 73 and/or the second plunger 74
Action-oriented valve 72.
Specifically, guide valve drive division 75 is controlled as being formed the first state of a control shown in Fig. 5, shown in Fig. 6
Two state of a controls and the three control-state shown in Fig. 7.That is, guide valve 72 is moved to recess in Fig. 5 state
First position relative with the 3rd opening portion 78 and the 4th opening portion 79 72a, it is in open state and company to make the second opening portion 77
Logical 3rd opening portion 78 and the 4th opening portion 79.When guide valve 72 is located at first position, guiding mechanism 70, which turns into connection first, leads
To pipe 81 and the second guide pipe 82 and connect the first state of the 3rd guide pipe 83 and the 4th guide pipe 84.In addition, guide valve
72 are moved to the recess 72a second places relative with the second opening portion 77 and the 4th opening portion 79 in Fig. 6 state, make the 3rd
Opening portion 78 is in open state and connects the second opening portion 77 and the 4th opening portion 79.When guide valve 72 is located at the second place,
Guiding mechanism 70 turns into connection the first guide pipe 81 and the 3rd guide pipe 83 and connects the second guide pipe 82 and the 4th guide pipe
84 the second state.In addition, guide valve 72 is moved to three relative with the second opening portion 77 of recess 72a in Fig. 7 state
Position, and the second opening portion 77, the 3rd opening portion 78 and the 4th opening portion 79 form open state.Guide valve 72 is located at the 3rd
When putting, guiding mechanism 70 turns into the third state of the first guide pipe 81 of connection and the 4th guide pipe 84.In the state shown in Fig. 7
In, the 4th opening portion 79 is not only, the second opening portion 77 and the 3rd opening portion 78 are again formed as open state, but in the 3rd position
In, such as can also only have the 4th opening portion 79 and be formed as open state, as long as at least connect the first guide pipe 81 and the 4th
The structure of guide pipe 84.
Guide valve drive division 75 has to realize from the first above-mentioned state of a control to the state of a control of three control-state
There are the first spring 75a, second spring 75b, magnet coil 75c and supporting member 75d.First spring 75a is installed on the first post
Between filling in 73 and supporting member 75d, to press first when the first plunger 73 will move from guide valve 72 towards supporting member 75d
Plunger 73.Second spring 75b is installed between the second plunger 74 and supporting member 75d, with will be towards with first when the second plunger 74
Direction in opposite direction where plunger 73 presses the second plunger 74 when moving.Such as first plunger 73 and the second plunger 74 by iron
Formed Deng magnetic, and be configured to the first plunger 73 and the second plunger 74 magnetic field court and guide valve caused by magnet coil 75c
Direction drawing in opposite direction where 72.In addition, guide valve drive division 75 turns into when not producing magnetic field in magnet coil 75c
The first state of a control shown in Fig. 5, turn into when leading to the first weaker electric current in magnet coil 75c and producing magnetic field shown in Fig. 6
The second state of a control, as the 3rd control shown in Fig. 7 when leading to stronger the second electric current in magnet coil 75c and producing magnetic field
State processed.
The action of (2-1-3) four-way switching valve main body mechanism 50 and guiding mechanism 70
Then, to because compressor 11 operates and towards four-way switching valve 12 first port 12a supply high pressure gas refrigeration
The action of four-way switching valve main body mechanism 50 and guiding mechanism 70 when agent and the gas refrigerant towards the 4th port 12d supply low pressure
Illustrate.That is, situations below is illustrated：In the degree of the release of the valve element 52 of four-way switching valve 12
When, at least supply the refrigerant of high pressure from first port 12a towards the first guide pipe 81 and be oriented to from the 4th port 12d towards the 4th
The supply gas refrigerant of pipe 84.
In the state shown in Fig. 5, height is supplied towards guide chamber 71a from the first guide pipe 81 for being connected to first port 12a
The gas refrigerant of pressure, supplied from guide chamber 71a via the first Room 55 of the second guide pipe 82 towards four-way switching valve main body mechanism 50
Gas refrigerant to high pressure.On the other hand, by guide valve 72, passed through from the 4th guide pipe 84 for being connected to the 4th port 12d
The gas refrigerant of low pressure is supplied by the second Room 56 of the 3rd guide pipe 83 towards four-way switching valve main body mechanism 50.As a result,
First Room 55 of four-way switching valve main body mechanism 50 turns into high pressure and second Room 56 turns into low pressure, and valve element 52 is towards away from the first lid
51b direction is mobile and forms the state shown in Fig. 3.State shown in described Fig. 3 is the pressure ratio second Room 56 of the first Room 55
The high first state of pressure.In described Fig. 3 state, four-way switching valve 12 is positive status, i.e. passes through the connection of valve element 52 the
Single port 12a and second port 12b and it is connected the 3rd port 12c and the 4th port 12d.
In the state shown in Fig. 6, height is supplied towards guide chamber 71a from the first guide pipe 81 for being connected to first port 12a
The gas refrigerant of pressure, supplied from guide chamber 71a via the second Room 56 of the 3rd guide pipe 83 towards four-way switching valve main body mechanism 50
Gas refrigerant to high pressure.On the other hand, by guide valve 72, passed through from the 4th guide pipe 84 for being connected to the 4th port 12d
The gas refrigerant of low pressure is supplied by the first Room 55 of the second guide pipe 82 towards four-way switching valve main body mechanism 50.As a result,
First Room 55 of four-way switching valve main body mechanism 50 turns into low pressure and second Room 56 turns into high pressure, and valve element 52 is towards away from the second lid
51c direction is mobile and forms the state shown in Fig. 4.State shown in described Fig. 4 is the pressure ratio second Room 56 of the first Room 55
Low the second state of pressure.In described Fig. 4 state, four-way switching valve 12 is inverse state, i.e. passes through the connection of valve element 52 the
Single port 12a and the 3rd port 12c and it is connected second port 12b and the 4th port 12d.
In the state shown in Fig. 7, from the first port 12a for being connected to four-way switching valve 12 the first guide pipe 81 towards leading
To the gas refrigerant of room 71a supply high pressures, from guide chamber 71a via the 4th guide pipe 84 towards the 4th end of four-way switching valve 12
The gas refrigerant of mouth 12d supply high pressures.That is, in the state shown in Fig. 7, first port 12a and the 4th port 12d
Connected via the first guide pipe 81 and the 4th guide pipe 84, to be connected to first port 12a and the 4th port 12d stream and
Equipment is pressed.
(2-2) refrigerating plant 10 presses work
Fig. 8 illustrates the state that guiding mechanism 70 is pressed as the state shown in above-mentioned Fig. 7 and refrigerating plant 10.
Before the state shown in Fig. 8 is formed, as the explanation carried out using Fig. 2, heating operation is carried out in refrigerating plant 10.
Due to carrying out heating operation, therefore in the state shown in Fig. 2, handed over via four-way switching valve 12 from compressor 11 to Indoor Thermal
Parallel operation 16 turns into gases at high pressure pipeline (being represented with thick line), turns into highly pressurised liquid between indoor heat converter 16 and expansion mechanism 14
Pipeline (is represented by dashed line), and (chain-dotted line table is used as low-pressure gas pipeline between expansion mechanism 14 and outdoor heat converter 13
Show), turn into low-pressure gas pipeline (indicated by the solid line) between outdoor heat converter 13 and compressor 11.
Before defrosting operating (state shown in Fig. 1) is switched to from the state shown in Fig. 2, stop the operating of compressor 11
To be pressed work.Fig. 8 illustrates the state for carrying out pressing work.Even in the Fig. 8 for the operating for stopping compressor 11
State in, each pipeline of refrigerating plant 10 is also formed and Fig. 2 identical states.In Fig. 7 state of work is pressed,
As shown in Fig. 8 arrow Ar2, high-pressure gas refrigerant is through the inside (guide chamber 71a) of guiding mechanism 70 from the first guide pipe
81 flow towards the 4th guide pipe 84.In addition, therefore the operating of compressor 11, process over time, connects in the state stopped
It is connected to the pressure of the stream of the first guide pipe 81 (first port 12a) and is connected to the 4th guide pipe 84 (the 4th port 12d)
The pressure of stream approaches.In the case of figure 8, via four-way switching valve main body mechanism 50, first port 12a and the second end
Mouth 12b is connected, and the 3rd port 12c is connected with the 4th port 12d, therefore, with first port 12a, second port 12b, the 3rd end
Mouth 12c, the stream of the 4th port 12d connections are pressed simultaneously by four-way switching valve 12.
(3) feature
(3-1)
The four-way switching valve 12 of above-mentioned embodiment turns into the third state by the formation of guiding mechanism 70 Fig. 7 state,
That is, first port 12a and the 4th port 12d is connected via the first guide pipe 81 and the 4th guide pipe 84.Pass through four-way switching valve
12 form the third state, and refrigerant is from first port 12a via the first guide pipe 81 and the 4th guide pipe 84 towards the 4th port 12d
Flowing, it is connected to first port 12a stream and is formed with being connected to the 4th port 12d stream press.In the system shown in Fig. 8
In device for cooling 10, the outlet 11a of compressor 11 stream (gases at high pressure pipeline) can be connected to and be connected to suction inlet 11b
Stream (low-pressure gas pipeline) formed press.Therefore, even if setting by-passing valve 19 also to be formed unlike prior art
Pressure, uniform voltage function can be added in refrigerating plant 10 with low cost.
(3-2)
Guiding mechanism 70 can make the 4th opening portion 79 form open state, connection relative to guide chamber 71a with guide valve 72
First guide pipe 81 connects first port 12a and the 4th port 12d with the 4th guide pipe 84.Guiding mechanism 70 is formed like this
To make the 4th opening portion 79 form the simple structure of open state with guide valve 72, guiding mechanism 70 can be inexpensively realized, therefore,
The cost for providing the four-way switching valve 12 with uniform voltage function can be reduced.
(3-3)
Guiding mechanism 70 is opened by being moved to the recess 72a of guide valve 72 as shown in Figure 5 with the 3rd opening portion 78 and the 4th
The relative first position of oral area 79, guide valve 72 can be utilized to connect the 3rd guide pipe 83 and the 4th guide pipe 84, and utilize guiding
Valve 72 makes the second opening portion 77 form open state and connect the first guide pipe 81 and the second guide pipe 82.In addition, pass through such as Fig. 6
The second place relative with the second opening portion 77 and the 4th opening portion 79 the shown recess 72a for being moved to guide valve 72, can be utilized
Guide valve 72 connects the second guide pipe 82 and the 4th guide pipe 84, and the 3rd opening portion 78 is formed open shape using guide valve 72
State and connect the first guide pipe 81 and the 3rd guide pipe 83.
Like this, the switching to the third state can not only be carried out with guide valve 72, can also be carried out with guide valve 72 to first
The switching of state and the second state, accordingly, it is capable to simplify the structure of guiding mechanism 70.As a result, the energy in four-way switching valve 12
Inexpensively realize connection first port 12a and the 4th port 12d and form the function of pressing.
(3-4)
As illustrating as described above in (3-3), guide valve drive division 75 can be by making guide valve 72 be moved from first position
Four-way switching valve 12 is set to switch to the third state from first state to the 3rd position.Due to simply being moved in guiding mechanism 70
Guide valve 72 and guide valve 72 is taken three positions, therefore the structure of guide valve drive division 75 becomes simple, can inexpensively realize
Guiding mechanism 70 reduces the purpose of cost so as to reach.
(3-5)
Guide valve 72 is configured to by edge rectilinear movement and relative to the second opening portion 77, the 4th opening portion 79 and the 3rd
Opening portion 78 changes posture, four-way switching valve 12 is carried out the switching from first state to the third state.Like this, as long as making to lead
Moved in a straight line to valve 72, accordingly, it is capable to the example linearly moved in guide chamber 71a as guide valve drive division 75
It is made up of as embodiment described above the first plunger 73 and the second plunger 74, by becoming the structure of guide valve drive division 75
Simply, four-way switching valve 12 is easily inexpensively formed.
(3-6)
Guide valve drive division 75 controls the first plunger 73 in guide chamber 71a using the electric current for flowing through magnet coil 75c
With the position of the second plunger 74, them are made to be moved as Fig. 5, Fig. 6 and Fig. 7.For example, the predetermined portion in guide chamber 71a is only
It is set as than guide valve 72 close to the side of the first plunger 73, therefore, if regarding the predetermined portion as supporting member
The fore-end near guide valve 72 in 75d, then in the state of there is no electric current flowing in magnet coil 75c, pressing the
The second spring 75b both of which elongation of the second plunger 74 of the first spring 75c and pressing of one plunger 73, is formed shown in Fig. 5
State (example of the first state of a control), the distance from guide valve 72 to supporting member 75d fore-end can become most long.
Lead in magnet coil 75c in the state of the second stronger electric current, press the second post of the first spring 75a and pressing of the first plunger 73
The second spring 75b both of which of plug 74 is shunk, and the state (example of three control-state) shown in Fig. 7 is formed, from guide valve
The distance of 72 to supporting member 75d fore-end becomes most short.In addition, lead to the first weaker electric current in magnet coil 75c
In the state of, the first spring 75a of the first plunger 73 of pressing shrinks and presses the second spring 75b elongations of the second plunger 74, shape
Into the state (example of the second state of a control) shown in Fig. 6, from guide valve 72 at the distance of supporting member 75d fore-end
Between the first state of a control and the second state of a control.Like this, the structure of guide valve drive division 75 and control are simplified.
(4) variation
(4-1) variation 1A
In the above-described embodiment, to being used to make guide valve 72 straight to move using the first plunger 73 and the second plunger 74
The structure of the guide valve drive division 75 moved on line is illustrated, but for making the guide valve that guide valve 72 moves on straight line
The structure of drive division is not limited to the structure illustrated in above-mentioned embodiment.For example, it is also possible to using following structure：With spring from two
Side exerts a force to first plunger 73, and is for example inhaled first plunger 73 towards wherein side with the electromagnet for being configured at both sides
Draw.
(4-2) variation 1B
In the above-described embodiment, the situation that mobile guide valve 72 is carried out using electromagnetic force is illustrated, but can also
Pressed or pulled by physics mode move guide valve 72, in addition it is also possible to be used in the movement of guide valve 72
Air pressure or hydraulic pressure or power source in addition.
(4-3) variation 1C
In the above-described embodiment, the embodiment moved to guide valve 72 on straight line is illustrated, but guide valve
Movement be not limited on straight line.For example, guide valve can be made circumferentially to move, by the second opening portion 77, the 4th opening portion
79 and the 3rd opening portion 78 be configured on circumference.
(4-4) variation D
In the above-described embodiment, as making guiding mechanism 70 switch between first state, the second state, the third state
Refrigerating plant 10, have with guiding mechanism 70 and be directly connected in first port 12a the first guide pipe 81, be directly connected in the
The situation of four port 12d the 4th guide pipe 84 and the guide valve 72 for connecting the first guide pipe 81 and the 4th guide pipe 84
Exemplified by be illustrated, wherein, the first state refers to make the pressure ratio second Room of the first Room 55 to form positive status
The high state of 56 pressure, second state refer to the first Room of pressure ratio 55 for making second Room 56 to form inverse state
The high state of pressure, the third state refer to the state for connecting first port 12a and the 4th port 12d.
But the refrigerating plant for making guiding mechanism switch between first state, the second state, the third state can also structure
As the structure of the refrigerating plant 10A for example shown in Fig. 9, wherein, the first state refers to make in order to form positive status
The high state of the pressure of the pressure ratio second Room of one Room, second state refer to make the pressure of second Room to form inverse state
The power state higher than the pressure of the first Room, the third state refer to connect first port and the state of the 4th port.
That is, the refrigerating plant 10A shown in Fig. 9 also has the first refrigerant piping 17 and second refrigerant pipe arrangement 18, wherein,
First refrigerant piping 17 connects the outlet 11a of four-way switching valve 12A first port 12a and compressor 11, described
Second refrigerant pipe arrangement 18 connects four-way switching valve 12A the 4th port 12d and the suction inlet 11b of compressor 11.In the second system
The midway of cryogen pipe arrangement 18 is provided with storage tank 15.
Refrigerating plant 10A guiding mechanism 70A has：It is connected to the first guide pipe 85 of the first refrigerant piping 17；Even
It is connected to the second guide pipe 86 of second refrigerant pipe arrangement 18；And for connecting leading for the first guide pipe 85 and the 4th guide pipe 86
To valve 72.
In addition, in fig.9, the part with marking same-sign into Fig. 8 in Fig. 1 is that same-sign is used into Fig. 8 with Fig. 1
The part identical part of mark.For example, in variation 1D refrigerating plant 10A, except the first guide pipe 85 is connected to
One refrigerant piping 17 and the 4th guide pipe 86 be connected to second refrigerant pipe arrangement 18 this point beyond, the system with above-mentioned embodiment
Device for cooling 10 has identical structure.In addition, in refrigerating plant 10A guiding mechanism 70A, except the first guide pipe 85 connects
Beyond the first refrigerant piping 17 and the 4th guide pipe 86 are connected to second refrigerant pipe arrangement 18 this point, also with above-mentioned embodiment party
The guiding mechanism 70 of the refrigerating plant 10 of formula has identical structure.
Variation 1D refrigerating plant 10A forms Fig. 9 state to turn into the third state by guiding mechanism 70A, i.e. warp
By the first guide pipe 85 first end is connected with the first refrigerant piping 17 and the 4th guide pipe 86 with second refrigerant pipe arrangement 18
Mouth 12a and the 4th port 12d.The third state is formed by four-way switching valve 12A, refrigerant is from first port 12a via first
The guide pipe 86 of guide pipe 85 and the 4th flows towards the 4th port 12d, is connected to first port 12a stream and is connected to the 4th
Port 12d stream, which is formed, presses.In the refrigerating plant 10A shown in Fig. 9, the outlet 11a of compressor 11 can be connected to
Stream (gases at high pressure pipeline) be the first refrigerant piping 17 with being connected to suction inlet 11b stream (low-pressure gas pipeline) i.e.
Second refrigerant pipe arrangement 18, which is formed, presses.Therefore, pressed even if setting by-passing valve 19 also to be formed unlike prior art, energy
Uniform voltage function is added in refrigerating plant 10A with low cost.
In addition, in variation 1D refrigerating plant 10A, can be led by the connection of guide valve 72 first shown in mobile Fig. 9
To pipe 85 and the second guide pipe 82 and the 3rd guide pipe 83 and the 4th guide pipe 86 are connected, forms the pressure ratio for making the first Room
The high first state of the pressure of two Room, mobile guide valve 72 can be passed through and connect the first guide pipe 85 and the 3rd guide pipe 83 and company
Logical second guide pipe 82 and the 4th guide pipe 86, form the second high state of the pressure for the Room of pressure ratio first for making second Room.
(4-5) variation 1E
In addition, the refrigerating plant for making guiding mechanism switch between first state, the second state, the third state can also structure
As the structure of the refrigerating plant 10B for example shown in Figure 10, wherein, the first state refers to make in order to form positive status
The high state of the pressure of the pressure ratio second Room of one Room, second state refer to make the pressure of second Room to form inverse state
The power state higher than the pressure of the first Room, the third state refer to connect first port and the state of the 4th port.
That is, the refrigerating plant 10B shown in Figure 10 also has the first refrigerant piping 17, and first refrigerant piping 17 connects
Meet four-way switching valve 12B first port 12a and the outlet 11a of compressor 11.
Refrigerating plant 10B guiding mechanism 70B has：It is connected to the first guide pipe 85 of the first refrigerant piping 17；Even
It is connected to four-way switching valve 12B the 4th port 12d the 4th guide pipe 84；And led for connecting the first guide pipe 85 with the 4th
To the guide valve 72 of pipe 84.
In addition, in Fig. 10, the part with marking same-sign into Fig. 9 in Fig. 1 be with Fig. 1 into Fig. 9 with identical symbol
Number mark part identical part.For example, in variation 1E refrigerating plant 10B, except the first guide pipe 85 is connected to
Beyond this point of first refrigerant 17, there is identical structure with the refrigerating plant 10 of above-mentioned embodiment.In addition, in refrigerating plant
In 10B guiding mechanism 70B, except the first guide pipe 85 be connected to the first refrigerant piping 17 this point in addition to, also with above-mentioned reality
The guiding mechanism 70 for applying the refrigerating plant 10 of mode has identical structure.
Variation 1E refrigerating plant 10B forms Figure 10 state to turn into the third state by guiding mechanism 70B, i.e.
Via the first guide pipe 85 and the first refrigerant piping 17 and the 4th guide pipe 84 connection first port 12a and the 4th port
12d.The third state is formed by four-way switching valve 12B, refrigerant is led from first port 12a via the first guide pipe 85 and the 4th
Flowed to pipe 84 towards the 4th port 12d, be connected to first port 12a stream and be connected to the 4th port 12d stream shape
Into pressing.In the refrigerating plant 10B shown in Figure 10, the outlet 11a of compressor 11 stream (gases at high pressure can be connected to
Pipeline) it is stream (low-pressure gas pipeline) i.e. second refrigerant pipe arrangement of first refrigerant piping 17 with being connected to suction inlet 11b
18 formation are pressed.Therefore, press, can freezed with low cost even if setting by-passing valve 19 also to be formed unlike prior art
Additional uniform voltage function in device 10B.
In addition, in variation 1E refrigerating plant 10B, can be led by the connection of guide valve 72 first shown in mobile Figure 10
To pipe 85 and the second guide pipe 82 and the 3rd guide pipe 83 and the 4th guide pipe 84 are connected, forms the pressure ratio for making the first Room
The high first state of the pressure of two Room, mobile guide valve 72 can be passed through and connect the first guide pipe 85 and the 3rd guide pipe 83 and company
Logical second guide pipe 82 and the 4th guide pipe 84, form the second high state of the pressure for the Room of pressure ratio first for making second Room.
(4-6) variation F
In addition, the refrigerating plant for making guiding mechanism switch between first state, the second state, the third state can also structure
As the structure of the refrigerating plant 10C for example shown in Figure 11, wherein, the first state refers to make in order to form positive status
The high state of the pressure of the pressure ratio second Room of one Room, second state refer to make the pressure of second Room to form inverse state
The power state higher than the pressure of the first Room, the third state refer to connect first port and the state of the 4th port.
That is, the refrigerating plant 10C shown in Figure 11 also has second refrigerant pipe arrangement 18, and the second refrigerant pipe arrangement 18 connects
Meet four-way switching valve 12C the 4th port 12d and the suction inlet 11b of compressor 11.Set in the midway of second refrigerant pipe arrangement 18
There is storage tank 15.
Refrigerating plant 10C guiding mechanism 70C has：Be connected to four-way switching valve 12C first port 12a first is led
To pipe 81；It is connected to the 4th guide pipe 86 of second refrigerant pipe arrangement 18；And led for connecting the first guide pipe 81 with the 4th
To the guide valve 72 of pipe 86.
In addition, in fig. 11, the part with marking same-sign into Figure 10 in Fig. 1 be with Fig. 1 into Figure 10 with identical
The part identical part of symbol mark.For example, in variation 1F refrigerating plant 10C, except the 4th guide pipe 86 connects
Beyond this puts in second refrigerant 18, there is identical structure with the refrigerating plant 10 of above-mentioned embodiment.In addition, filled in refrigeration
Put in 10C guiding mechanism 70C, except the 4th guide pipe 86 be connected to second refrigerant pipe arrangement 18 this point in addition to, with above-mentioned reality
The guiding mechanism 70 for applying the refrigerating plant 10 of mode has identical structure.
Variation 1F refrigerating plant 10C forms Figure 11 state to turn into the third state by guiding mechanism 70C, i.e.
Via the first guide pipe 81 and the guide pipe 86 of second refrigerant pipe arrangement 18 and the 4th connection first port 12a and the 4th port
12d.The third state is formed by four-way switching valve 12C, refrigerant is led from first port 12a via the first guide pipe 81 and the 4th
Flowed to pipe 86 towards the 4th port 12d, be connected to first port 12a stream and be connected to the 4th port 12d stream shape
Into pressing.In the refrigerating plant 10C shown in Figure 11, the outlet 11a of compressor 11 stream (gases at high pressure can be connected to
Pipeline) it is stream (low-pressure gas pipeline) i.e. second refrigerant pipe arrangement of first refrigerant piping 17 with being connected to suction inlet 11b
18 formation are pressed.Therefore, press, can freezed with low cost even if setting by-passing valve 19 also to be formed unlike prior art
Additional uniform voltage function in device 10C.
Symbol description
10th, 10A, 10B, 10C refrigerating plant
11 compressors
12nd, 12A, 12B, 12C four-way switching valve
13 outdoor heat converters
16 indoor heat converters
12a first ports
12b second ports
The ports of 12c the 3rd
The ports of 12d the 4th
17 first refrigerant pipings
18 second refrigerant pipe arrangements
50 four-way switching valve main body mechanisms
52 valve elements
Room 55 first
56 second Rooms
70th, 70A, 70B, 70C guiding mechanism
71 guide bodies
71a guide chambers
72 guide valves
73 first plungers
74 second plungers
76 first opening portions
77 second opening portions
78 the 3rd opening portions
79 the 4th opening portions
81st, 85 first guide pipe
82 second guide pipes
83 the 3rd guide pipes
84th, 86 the 4th guide pipe
Prior art literature
Patent document
Patent document 1：Japanese Patent Laid-Open 2001-116384 publications.
Claims (11)
1. a kind of four-way switching valve, it has：
First port (12a), second port (12b), the 3rd port (12c) and the 4th port (12d)；
Four-way switching valve main body mechanism (50), the four-way switching valve main body mechanism have valve element (52), the first room (55) and
Two rooms (56), and by described in the pressure official post between first Room and the second Room valve element movement come positive status with it is inverse
Switched between state, the positive status refers to connect the first port (12a) and the second port (12b) and is connected
The state of 3rd port (12c) and the 4th port (12d), the inverse state refer to connect the first port and institute
State the 3rd port and connect the state of the second port and the 4th port；And
Guiding mechanism (70), the guiding mechanism are used to making first Room of the four-way switching valve main body mechanism and described the
Pressure differential is produced between two Room,
The guiding mechanism is configured to switch between first state, the second state and the third state, first shape
State refers to make the high state of the pressure of second Room described in the pressure ratio of first Room to form the positive status, described
Two-state refers to make the high state of the pressure of the first Room described in the pressure ratio of the second Room to form the inverse state, institute
State the state that the third state refers to connect the first port and the 4th port.
2. four-way switching valve as claimed in claim 1, wherein,
The guiding mechanism has：It is connected to the first guide pipe (81) of the first port；It is connected to the 4th port
4th guide pipe (84)；And for connecting the guide valve (72) of first guide pipe and the 4th guide pipe.
3. four-way switching valve as claimed in claim 2, wherein,
The guiding mechanism also has：It is connected to the second guide pipe (82) of first Room；And it is connected to the second Room
The 3rd guide pipe (83), in the first state, utilize the guide valve to connect first guide pipe and described second
Guide pipe, and the 3rd guide pipe and the 4th guide pipe are connected, in second state, connected using the guide valve
Lead to first guide pipe and the 3rd guide pipe, and connect second guide pipe and the 4th guide pipe.
4. four-way switching valve as claimed in claim 3, wherein,
The guiding mechanism also has：Guide chamber (71a), the guide chamber is formed with being connected to the first of first guide pipe
Opening portion (76), the second opening portion (77) for being connected to second guide pipe, it is connected to the 3rd of the 3rd guide pipe and opens
Oral area (78) and the 4th opening portion (79) for being connected to the 4th guide pipe；And guide valve drive division (75), it is described to lead
The guide valve is driven to valve drive division,
The guide valve is configured to：Described second is set to open being moved to by the guide valve drive division in the state of first position
Oral area turns into open state and connects the 3rd opening portion and the 4th opening portion, is moved by the guide valve drive division
The 3rd opening portion is turned into open state in the state of moving to the second place and connect second opening portion and described the
Four opening portions, at least turn into the 4th opening portion being moved to by the guide valve drive division in the state of the 3rd position
Open state.
5. four-way switching valve as claimed in claim 4, wherein,
The guiding mechanism make the first position, the second place and the 3rd position it is dead in line on, and
The guide valve drive division makes the guide valve linearly move.
6. four-way switching valve as claimed in claim 5, wherein,
The guide valve drive division has：It is fixed on the first plunger (73) of the guide valve；And it can adjust and the guiding
The second plunger (74) of the separated distance of the predetermined portion of room, the guide valve drive division control first plunger and described the
The position of two plungers is made described with being switched between the first state of a control, three control-state and the second state of a control
Guide valve is moved to the 3rd position from the first position, and first state of a control refers to from the guide valve to described
The most long state of the distance of predetermined portion, the three control-state refer to the distance from the guide valve to the predetermined portion
Most short state, second state of a control refer to be in first control from the guide valve to the distance of the predetermined portion
State between state processed and the three control-state.
7. a kind of refrigerating plant, it has：
Four-way switching valve (12,12A, 12B, 12C), the four-way switching valve have first port (12a), second port (12b),
3rd port (12c) and the 4th port (12d), four-way switching valve main body mechanism (50) and guiding mechanism (70,70A, 70B,
70C), the four-way switching valve main body mechanism has valve element (52), the first room (55) and second Room (56), and passes through described first
Valve element movement described in pressure official post between room and the second Room switches between positive status and inverse state, it is described just
State refer to connect the first port (12a) and the second port (12b) and be connected the 3rd port (12c) with it is described
The state of 4th port (12d), the inverse state refer to connect the first port and the 3rd port and are connected described
Two-port netwerk and the state of the 4th port, the guiding mechanism are used to make described the first of the four-way switching valve main body mechanism
Pressure differential is produced between room and the second Room；
Compressor (11), the compressor discharge the refrigerant after compression via the first port, and via the described 4th
Port sucks refrigerant；
Outdoor heat converter (13), the outdoor heat converter are connected to the second port；And
Indoor heat converter (16), the indoor heat converter are connected to the 3rd port,
The guiding mechanism is configured to switch between first state, the second state and the third state, first shape
State refers to make the high state of the pressure of second Room described in the pressure ratio of first Room to form the positive status, described
Two-state refers to make the high state of the pressure of the first Room described in the pressure ratio of the second Room to form the inverse state, institute
State the state that the third state refers to connect the first port and the 4th port.
8. refrigerating plant as claimed in claim 7, wherein,
The guiding mechanism (70) has：It is directly connected in the first guide pipe (81) of the first port；It is directly connected in institute
State the 4th guide pipe (84) of the 4th port；And for connecting the guide valve of first guide pipe and the 4th guide pipe
(72)。
9. refrigerating plant as claimed in claim 7, wherein,
Also have：
First refrigerant piping (17), first refrigerant piping connect the first end of the four-way switching valve (12A)
The outlet (11a) of mouth and the compressor；And
Second refrigerant pipe arrangement (18), the second refrigerant pipe arrangement connect the 4th port and the institute of the four-way switching valve
The suction inlet (11b) of compressor is stated,
The guiding mechanism (70A) has：It is connected to the first guide pipe (85) of first refrigerant piping；It is connected to described
4th guide pipe (86) of second refrigerant pipe arrangement；And for connecting leading for first guide pipe and the 4th guide pipe
To valve (72).
10. refrigerating plant as claimed in claim 7, wherein,
Also there is the first refrigerant piping (17), first refrigerant piping (17) connects the four-way switching valve (12B)
The first port and the outlet (11a) of the compressor,
The guiding mechanism (70B) has：It is connected to the first guide pipe (85) of first refrigerant piping；It is directly connected in
4th guide pipe (84) of the 4th port；And for connecting the guiding of first guide pipe and the 4th guide pipe
Valve (72).
11. refrigerating plant as claimed in claim 7, wherein,
Also there is refrigerant piping (18), the refrigerant piping connects the 4th port of the four-way switching valve (12C)
With the suction inlet (11b) of the compressor,
The guiding mechanism (70C) has：It is directly connected in the first guide pipe (81) of the first port；It is connected to the system
4th guide pipe (86) of cryogen pipe arrangement；And for connecting the guide valve of first guide pipe and the 4th guide pipe
(72)。
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014149030 | 2014-07-22 | ||
| JP2014-149030 | 2014-07-22 | ||
| PCT/JP2015/069615 WO2016013393A1 (en) | 2014-07-22 | 2015-07-08 | Four-way switching valve and refrigeration device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106662261A CN106662261A (en) | 2017-05-10 |
| CN106662261B true CN106662261B (en) | 2018-04-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201580039750.2A Active CN106662261B (en) | 2014-07-22 | 2015-07-08 | Four-way switching valve and refrigerating plant |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP5825452B1 (en) |
| CN (1) | CN106662261B (en) |
| WO (1) | WO2016013393A1 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107289152B (en) * | 2016-04-12 | 2019-07-23 | 浙江三花智能控制股份有限公司 | A kind of four-way reversing valve and its pilot valve |
| CN107289151B (en) * | 2016-04-12 | 2019-07-23 | 浙江三花智能控制股份有限公司 | A kind of coolant circulating system |
| CN110274052B (en) * | 2018-03-13 | 2021-10-22 | 浙江三花智能控制股份有限公司 | Fluid switching device and thermal management system |
| US11300339B2 (en) | 2018-04-05 | 2022-04-12 | Carrier Corporation | Method for optimizing pressure equalization in refrigeration equipment |
| JP2020165585A (en) * | 2019-03-29 | 2020-10-08 | ダイキン工業株式会社 | Unit for refrigerating device, heat source unit, and refrigerating device |
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- 2015-07-06 JP JP2015135233A patent/JP5825452B1/en active Active
- 2015-07-08 WO PCT/JP2015/069615 patent/WO2016013393A1/en active Application Filing
- 2015-07-08 CN CN201580039750.2A patent/CN106662261B/en active Active
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| DE2541445A1 (en) * | 1975-09-17 | 1977-03-24 | Wabco Westinghouse Gmbh | Valve for pneumatically driven systems - has plunger moving axially in valve housing with ventilation to atmosphere between plunger and housing |
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Also Published As
| Publication number | Publication date |
|---|---|
| JP5825452B1 (en) | 2015-12-02 |
| JP2016029323A (en) | 2016-03-03 |
| CN106662261A (en) | 2017-05-10 |
| WO2016013393A1 (en) | 2016-01-28 |
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