CN109405342A - Four-way reversing valve and heat-exchange system including the four-way reversing valve - Google Patents
Four-way reversing valve and heat-exchange system including the four-way reversing valve Download PDFInfo
- Publication number
- CN109405342A CN109405342A CN201811541432.8A CN201811541432A CN109405342A CN 109405342 A CN109405342 A CN 109405342A CN 201811541432 A CN201811541432 A CN 201811541432A CN 109405342 A CN109405342 A CN 109405342A
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- China
- Prior art keywords
- way reversing
- reversing valve
- nozzle
- valve body
- spool
- Prior art date
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B13/00—Compression machines, plants or systems, with reversible cycle
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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
- F16K11/08—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only taps or cocks
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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
- F16K31/04—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor
- F16K31/041—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor for rotating valves
- F16K31/043—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor for rotating valves characterised by mechanical means between the motor and the valve, e.g. lost motion means reducing backlash, clutches, brakes or return means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
- F25B2313/027—Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means
- F25B2313/02741—Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means using one four-way valve
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Multiple-Way Valves (AREA)
Abstract
The invention discloses a kind of four-way reversing valve and including the heat-exchange system of the four-way reversing valve, it includes valve body, spool is provided in valve body, air-breathing nozzle is provided on valve body, exhaust pipe mouth, first connection nozzle and the second connection nozzle, spool can be moved along body cavity, valve body left and right side forms first chamber and second chamber with the spool respectively, the side that spool is connected with first chamber is horizontally disposed connecting rod, interlinking lever end is rotatably connected to inside crank, inside crank end is rotatably connected to control shaft, linear actuator is provided at the first connection nozzle on the outside of valve body, outside crank is rotatably connected on the front end projecting shaft of linear actuator, control shaft is rotatablely connected after running through valve body outward with outside crank；The present invention solves the problems, such as that spool is heavier in the prior art, promotion spool is more difficult, high pressure gas is ganged up and it is ineffective to generate commutation.
Description
Technical field
The present invention relates to technical field of refrigeration equipment, and in particular to a kind of four-way reversing valve and including the four-way reversing valve
Heat-exchange system.
Background technique
Currently, being broadly divided into two kinds using the four-way reversing valve of large capacity in the market: staggered form runner piston cylinder operator four
The four-way reversing valve of logical reversal valve and the U-shaped runner design of internal slide block type, both four-way reversing valves are to pass through refrigeration system
Internal height pressure difference realizes the linear motion of spool, achievees the purpose that refrigeration and heating cyclic switching.
The structure of two kinds of four-way reversing valves is all that the movement of spool is pushed by internal differential pressure, the design of mechanical structure compared with
Be it is simple, have the disadvantage in that since spool weight and volume is big, need very big motive force, once generate commutation it is ineffective,
Spool is stuck among valve body, then repairs and reset all extremely difficult；It is asynchronous if there is spool movement, it will cause height and calm the anger
Body is ganged up, it may appear that commutate ineffective situation, pushes the gas pressure of valve core movement will be not present, four-way reversing valve will be unable to just
Often work.
Summary of the invention
Aiming at the problems existing in the prior art, the present invention provides a kind of four-way reversing valve and including the four-way reversing valve
Heat-exchange system, solve that spool in the prior art is heavier, pushes that spool is more difficult, high pressure gas gangs up and generates commutation
Ineffective problem.
The technical scheme adopted by the invention is that: a kind of four-way reversing valve comprising valve body is provided with valve in the valve body
Core is provided with air-breathing nozzle, exhaust pipe mouth, the first connection nozzle and the second connection nozzle on the valve body, and the spool can edge
Body cavity is mobile, and the valve body left and right side forms first chamber and second chamber, the spool with the spool respectively
The side being connected with first chamber is horizontally disposed connecting rod, and the interlinking lever end is rotatably connected to inside crank, the introversion pommel
Portion is rotatably connected to control shaft, is provided with linear actuator at the first connection nozzle on the outside of the valve body, the straight line is held
Outside crank is rotatably connected on the front end projecting shaft of row device, the control shaft, which runs through outward after valve body, carries out rotation company with outside crank
It connects.
Preferably, the first branch with holes with self-lubricating bearing is provided at the first connection nozzle on the outside of the valve body
The tail end of frame, the linear actuator is fixed in self-lubricating bearing by first axle rotator bolt, and the linear actuator can be around
The rotation of first axle rotator bolt.
Preferably, the second branch with holes with self-lubricating bearing is arranged on the front end projecting shaft of the linear actuator
Frame, one end that the outside crank is connected with linear actuator are provided with the first mounting hole with self-lubricating bearing, and described second
Belt hole support frame and the first mounting hole are fixed by the second shaft shoulder bolt, and the outside crank and linear actuator can be around second
Shaft shoulder bolt is rotated；The one end being connected on the inside crank with connecting rod is provided with the second installation with self-lubricating bearing
Hole, the one end being connected on the connecting rod with inside crank are provided with bearing, and the bearing and the second mounting hole pass through third shaft shoulder spiral shell
Bolt is fixed, and the inside crank and connecting rod can be rotated around third shaft shoulder bolt.
Preferably, the control shaft and valve body joint are provided with control shaft cover board, and the control shaft can be around control shaft-cup
Plate is rotated.
Preferably, the control shaft cover board and valve body junction are provided with O-ring.
A kind of heat-exchange system, including water cooling heat exchanger, air cooling heat exchanger, electric expansion valve, compressor and as right is wanted
Seek four-way reversing valve described in 1-5, wherein the first connection nozzle connection air cooling heat exchanger of the four-way reversing valve, described four
Second connection nozzle of logical reversal valve connects water cooling heat exchanger, entrance and the compressor phase of the exhaust pipe mouth of the four-way reversing valve
Even, the outlet of the air-breathing nozzle of the four-way reversing valve is connected with compressor, between the cold heat exchanger and air cooling heat exchanger
Be provided with electric expansion valve, realized by the linear actuator of four-way reversing valve in heat-exchange system refrigeration and heating condition into
Row switching.
When in refrigeration mode, the exhaust pipe mouth of the four-way reversing valve connect nozzle connection, the air-breathing with first
Nozzle connect nozzle connection with second；When being in heating mode, the exhaust pipe mouth of the four-way reversing valve and the second connecting tube
Mouth connection, the air-breathing nozzle connect nozzle connection with first.
The beneficial effect that the present invention reaches is: the present invention provides a kind of four-way reversing valves, and straight line is arranged on the outside of valve body
The linear actuator of actuator, outside drives spool, moves spool in the first chamber and second chamber of valve body,
And then realize commutate to four-way valve, avoid due to spool is overweight and it is ineffective to cause to commutate, in turn result in high-low pressure gas
Gang up the phenomenon that can not work normally, multiple components of four-way reversing valve use self-lubricating material, reduce spool and
Frictional force between valve body turn to four-way reversing valve must more quickly, and protect spool not damaged, extend spool
Service life.
Detailed description of the invention
The following further describes the present invention with reference to the drawings,
Fig. 1 is structural schematic diagram of the present invention under refrigerating state；
Fig. 2 is left view of the valve body of the present invention under refrigerating state；
Fig. 3 is structural schematic diagram of the present invention under heating state；
Fig. 4 is left view of the valve body of the present invention under heating state；
Fig. 5 is external structure of the present invention in refrigerating state flowering structure schematic diagram；
Fig. 6 is left view of the invention；
Fig. 7 is the structural schematic diagram of heat-exchange system of the present invention；
Wherein, 1, valve body, 2, spool, 21, first chamber, 22, second chamber, 3, air-breathing nozzle, 4, exhaust pipe mouth, 5, first connects
Pipe nozzle, the 6, second connection nozzle, 7, connecting rod, 8, inside crank, 9, control shaft, 10, linear actuator, 11, outside crank, 12, the
One belt hole support frame, 13, first axle rotator bolt, the 14, second belt hole support frame, the 15, first mounting hole, the 16, second shaft shoulder bolt, 17,
Second mounting hole, 18, bearing, 19, third shaft shoulder bolt, 20, control shaft cover board, 21, O-ring, 101, four-way reversing valve, 102,
Water cooling heat exchanger, 103, air cooling heat exchanger, 104, electric expansion valve, 105, compressor.
Specific embodiment
The following further describes the specific embodiments of the present invention with reference to the drawings.
As shown in Figures 1 to 6, a kind of four-way reversing valve comprising valve body 1 is provided with spool 2 in the valve body 1, described
Air-breathing nozzle 3, the connection nozzle 5 of exhaust pipe mouth 4, first and the second connection nozzle 6 are provided on valve body 1, the spool 2 can be along valve
1 inner cavity of body is mobile, and 1 left and right side of valve body forms first chamber 21 and second chamber 22 with the spool 2 respectively, described
The side that spool 2 is connected with first chamber 21 is horizontally disposed connecting rod 7, and 7 end of connecting rod is rotatably connected to inside crank 8, institute
It states 8 end of inside crank and is rotatably connected to control shaft 9,1 outside of valve body is provided with straight line execution at the first connection nozzle 5
Device 10, outside crank 11 is rotatably connected on the front end projecting shaft of the linear actuator 10, and the control shaft 9 runs through valve body outward
It is rotatablely connected after 1 with outside crank 11.
The application, as the spool driving mechanism of four-way reversing valve 101, is executed using linear actuator 10 using straight line
The linear motion thrust output of device 10 is converted into the linear motion displacement of the spool 2 of four-way reversing valve 10, by outside crank 11, interior
The thrust of linear actuator 10 is converted torque by crank 8 and connecting rod 7, is then converted to the displacement movement of spool 2.
Using linear actuator 10 come drive control spool switching action, quick action may be implemented quickly the application
Commutation, commutates, and in advance without stuck risk.
Preferable scheme is that 1 outside of the valve body is provided with the with self-lubricating bearing at the first connection nozzle 5
The tail end of one belt hole support frame 12, the linear actuator 10 is fixed in self-lubricating bearing by first axle rotator bolt 13, described
Linear actuator 10 can be rotated around first axle rotator bolt 13.
Preferable scheme is that being arranged with second with self-lubricating bearing on the front end projecting shaft of the linear actuator 10
Belt hole support frame 14, one end that the outside crank 11 is connected with linear actuator 10 are provided with the first installation with self-lubricating bearing
Hole 15, second belt hole support frame 14 and the first mounting hole 15 are fixed by the second shaft shoulder bolt 16, the outside crank 11
And linear actuator 10 can be rotated around the second shaft shoulder bolt 16；One end setting being connected on the inside crank 8 with connecting rod 7
There is the second mounting hole 17 with self-lubricating bearing, the one end being connected on the connecting rod 7 with inside crank 8 is provided with bearing 18, institute
It states bearing 18 and the second mounting hole 17 to be fixed by third shaft shoulder bolt 19, the inside crank 8 and connecting rod 7 can be around thirds
Shaft shoulder bolt 19 is rotated.
Preferable scheme is that the control shaft 9 is provided with control shaft cover board 20 with 1 joint of valve body, the control shaft 9 can
It is rotated around control shaft cover board 20, control shaft 9 is limited by the realization of control shaft cover board 20.
Preferable scheme is that the control shaft cover board 20 is provided with O-ring 21 with 1 junction of valve body, it is real by O-ring 21
Pressure seal is showed.
The thrust of linear actuator 10 is converted to 11 driving torque of outside crank, outside crank 11 and inside crank by outside crank 11
8 connection is realized by the control shaft 9 of a valve body 1 across four-way reversing valve 101, and control shaft 16 is outside valve body 1
Portion connects outside crank 5, and inside crank 4 is connected inside valve body 1, and control shaft 16 is limited and fixed simultaneously using control shaft cover board 17
Pressure seal is realized using O-ring 21；Inside crank 8 is connect in 1 inside of valve body with connecting rod 7, and the torque transmitting of outside crank 11 is interior
The torque of crank 8, the torque of inside crank 8 are converted into the thrust of connecting rod 7, to push the spool 2 of four-way reversing valve 101 in valve body
The displacement of 1 inner horizontal.
Linear actuator 10 generallys use the DC direct current generator driving straight line electric cylinders or use of 12V/24V/48V/64V
The alternating current generator of 11VAC/220VAC drives straight line electric cylinders, and the electrical control cabinet of existing Air-Cooled Heat Pump Unit has various voltages
AC and DC power supply, can be used for driving this linear actuator, switching operation of the linear actuator for four-way reversing valve has
It has the advantage that.
(1) the control power supply output of existing machine set control cabinet can be directly used using linear actuator structure to supply
Electricity, the digital quantity input and output (DI/DO) for directlying adopt existing machine set control cabinet only realize that the axis of straight line electric cylinders is fully extended
Be fully retracted two movements with axis, can setting speed, the most fast total travel actuation time up to 1-2s.Pass through air pressure than traditional
Control commutation and by oil pressure cntrol commutate four-way reversing valve commutating speed faster.Four-way reversing valve is in refrigeration systems
The effect that cooling operation mode and heating operation mode switch over is carry, is controlled using the Suck and exhaust pressure of refrigeration system
When commutation, unit will run several seconds in cooling mode, after height pressure difference is established, be according to the suction and discharge pressure difference of detection
It is no to be higher than design commutation pressure difference, it determines starting commutation, commutation is realized by the differential pressure of atmospheric pressure before and after spool.It is established using oil pump
Oil pressure difference stablize the later realization of pressure difference when commutating, to need pre-cooling oil pump to establish and commutate, oil pump oil pressure is passed through reversing machine
After structure, oil pressure difference is changed correspondingly, and it is poor to stablize its oil pressure that oil pump needs to adjust running frequency or by-passing valve, when commutating required
Between and stability it is also poor, the oil pressure difference that common oil pump is established is limited, such as maximum 45psig(310kPa), and gas
The pressure difference of pressure can be poor much higher than this oil pressure.The four-way reversing valve design driven using linear actuator can be in unit
Commutation is completed before starting, is directly controlled using electric signal, the most fast operation of use, and the time of 1-2s completes commutation, is not necessarily to
The operation of pre-cooling refrigeration mode, establishes that oil pressure is poor, and convenient and efficient, stability is good without pre-cooling oil pump systems.
(2) in the process of running with air pressure as the four-way reversing valve of oil pressure cntrol, the four-way of linear actuator control
Reversal valve, if not controlling signal, position that the axis of of straight line electric cylinders itself stretches out can by mechanical locking on this position,
Therefore any variation will not occur for the position of spool.For the emergency cases such as powering off suddenly, if it is using air pressure and oil pressure control
The four-way reversing valve of system, spool is likely to be in some intermediate position, by the way of air pressure, again to when electrically activating,
Since gas pressure difference can not correctly be implemented at the both ends of spool, spool will not be acted, and unit is not normally functioning, usually
Operation be by hand abandon to realize, or by hand commutation to realize.The mode of oil pressure cntrol can not when starting next time
Judge whether that spool is stuck in centre, it is also desirable to which technical staff carries out fault diagnosis, and hand oil pump opens control four-way valve in place.And
By the way of linear actuator control, before the position feedback of linear actuator itself can guarantee unit power-off restarting, first
It is preset to correct position according to location feedback value, control logic executes automatically, without technical staff's fault diagnosis multiple by hand
Position.
(3) by the way of air pressure or oil pressure, once four-way valve is stuck in some intermediate position, fault diagnosis and reset
It is extremely difficult.And use linear actuator control four-way reversing valve, can according to the present invention in crank mechanism position and control
The position feedback information of linear actuator in system processed directly judges, electronic reset is simpler from the point of view of maintenance.
(4) using the four-way reversing valve of linear actuator control, a low capacity is installed such as inside the control cabinet of unit
UPS realize about 15s or so delay power supply be given to linear actuator, for emergency power off reset use.In comparison, right
For oil pump systems, oil pump is driven to realize that prolonged uninterrupted fuel feeding maintains oil pressure poor, it may be necessary to configure one very
The UPS of the longer time of large capacity is realized.
Power level is finally applied to spool mechanism by inside crank by thrust by the link mechanism in the application, it can be seen that
The axle center of connecting rod with the axle center of spool in entire motion process be it is almost parallel, what is received this guarantees spool is almost
It is horizontal thrust.
As shown in fig. 7, a kind of heat-exchange system, including water cooling heat exchanger 102, air cooling heat exchanger 103, electric expansion valve
104, compressor 105 and four-way reversing valve as claimed in claims 1-5 101, wherein the first of the four-way reversing valve 101
It connecting nozzle 5 and connects air cooling heat exchanger 103, the second connection nozzle 6 of the four-way reversing valve 101 connects water cooling heat exchanger 102,
The entrance of the exhaust pipe mouth 4 of the four-way reversing valve 101 is connected with compressor 105, the air-breathing nozzle of the four-way reversing valve 101
3 outlet is connected with compressor 105, is provided with electric expansion valve between the water cooling heat exchanger 102 and air cooling heat exchanger 103
104, realize that refrigeration and heating condition are switched in heat-exchange system by the linear actuator 10 of four-way reversing valve 101.
In the heat-exchange system of the application, when in refrigeration mode, the exhaust pipe mouth 4 of the four-way reversing valve 101
It connect nozzle 5 with first to be connected to, the air-breathing nozzle 3 connect nozzle 6 with second and is connected to；When being in heating mode, described four
The exhaust pipe mouth 4 of logical reversal valve 101 connect nozzle 6 with second and is connected to, and the air-breathing nozzle 3 connect nozzle 5 with first and is connected to.
The four-way reversing valve of the application can be used in the systems such as air-conditioning, compressor, refrigerator and water heater.
When system needs to freeze, as shown in Fig. 2, the exhaust pipe mouth 4 is connected to the first connection nozzle 5, the air-breathing
Nozzle 3 is connected to the second connection nozzle 6, and the first connection nozzle 5 connects air cooling heat exchanger 103, the second connection nozzle 6
Water cooling heat exchanger 102 is connected, the high-temperature high-pressure refrigerant exhaust airstream of compressor 105 passes through the exhaust pipe of four-way reversing valve 101
Mouth 4 flows through the first connection nozzle 5, enters in air cooling heat exchanger 103, disturbs by the high-speed fan in air cooling heat exchanger 103,
The heat of refrigerant is taken away and is dispersed into environment by air-flow, the high-temperature high-pressure refrigerant flowed in 103 condenser pipe of air cooling heat exchanger
Gas radiates and is condensed into high-temperature high-pressure refrigerant liquid, and after 104 reducing pressure by regulating flow of electric expansion valve, refrigerant liquid becomes low
The two phase refrigerant of warm low pressure enters in water cooling heat exchanger 102, and in water cooling heat exchanger 102, chilled water absorbs refrigerant
Water temperature reduces after heat, and the gasification that refrigerant liquid becomes refrigerant gas needs to absorb from chilled water system a large amount of
Latent heat, this part caloric receptivity is exactly refrigerating capacity, and the low-temperature low-pressure refrigerant gas after gasification flows to four-way reversing valve 101
Second connection nozzle 6, and sucked after flowing through air intake duct mouth 3 by compressor 105, to complete a refrigeration cycle.
In refrigeration mode, the operating mode of air cooling heat exchanger 103 is condenser modes；The work of water cooling heat exchanger 102
Operation mode is evaporator mode.
When system needs to heat, realized by the switching of four-way reversing valve 101 from refrigeration mode to heating mode
Switching, as shown in Fig. 4, the exhaust pipe mouth 4 is connected to the second connection nozzle 6, the air-breathing nozzle 3 and the first connection nozzle 5
Connection, the first connection nozzle 5 connection air cooling heat exchanger 103, the second connection nozzle 6 connection water cooling heat exchanger 102, four
The connection of each nozzle and compressor and heat exchanger in refrigeration system of logical reversal valve 101 be it is constant, change is only
Be 101 internal fluid passageways of four-way reversing valve switching it is logical.The high-temperature high-pressure refrigerant exhaust airstream of compressor 105 passes through at this time
The exhaust pipe mouth 4 of four-way reversing valve 101 flows through the second connection nozzle 6, enters in water cooling heat exchanger 102, and water cooling exchanges heat at this time
Device 102 is condenser, and the refrigerant gas of high temperature and pressure is condensed into high-temperature high-pressure refrigerant liquid, and the liquefaction process of refrigerant needs
A large amount of latent heat is given out, this heat, that is, heating capacity, after heating water absorbs this heating capacity, temperature is increased to provide height
Warm water's demand, after 104 reducing pressure by regulating flow of electric expansion valve, the two phase refrigerant that refrigerant liquid becomes low-temp low-pressure is entered
In air cooling heat exchanger 103, in air cooling heat exchanger 103, refrigerant liquid absorbs the heat in surrounding air, realizes refrigerant
Gasification, the low-temperature low-pressure refrigerant gas after gasification flow to the first connection nozzle 5 of four-way reversing valve 101, and flow through air intake duct
It is sucked after mouth 3 by compressor 105, to complete a heating circulation.
In heating mode, the operating mode of air cooling heat exchanger 103 is evaporator mode；The work of water cooling heat exchanger 102
Operation mode is condenser modes.
The working principle of the invention is that the thrust of linear actuator is converted to outside crank driving torque by outside crank, outside
The connection of crank and inside crank is realized by the control shaft of a valve body across four-way reversing valve, and control shaft is in valve body
External connection outside crank connects inside crank in valve inner, and control shaft is limited and fixed and used O using control shaft cover board
Type circle realizes pressure seal；Inside crank is connect in valve inner with connecting rod, and the torque transmitting of outside crank is the torque of inside crank, interior
The torque of crank is converted into the thrust of connecting rod, to push the spool of four-way reversing valve in valve inner horizontal displacement.
By the thrust of linear actuator come the switching in realization system between refrigeration mode and heating mode, when system system
When cold, exhaust pipe mouth and the first connection nozzle connection, air-breathing nozzle and the second connection nozzle are connected to, when system heating, exhaust
Nozzle and the second connection nozzle connection, the air-breathing nozzle and the first connection nozzle connection.
The above are preferred embodiments of the present invention, is not intended to limit the present invention in any form, all foundations
Technical spirit of the invention any simple modification, equivalent change and modification made to the above embodiment, belong to inventive technique
In the range of scheme.
Claims (7)
1. four-way reversing valve, which is characterized in that it includes valve body, and spool is provided in the valve body, is provided on the valve body
Air-breathing nozzle, exhaust pipe mouth, the first connection nozzle and the second connection nozzle, the spool can be moved along body cavity, the valve
Body left and right side forms first chamber and second chamber, the side that the spool is connected with first chamber with the spool respectively
Horizontally disposed to have connecting rod, the interlinking lever end is rotatably connected to inside crank, and the inside crank end is rotatably connected to control shaft, institute
It states and is provided with linear actuator at the first connection nozzle on the outside of valve body, rotated on the front end projecting shaft of the linear actuator
It is connected with outside crank, the control shaft is rotatablely connected after running through valve body outward with outside crank.
2. four-way reversing valve according to claim 1, which is characterized in that on the outside of the valve body at the first connection nozzle
It is provided with the first belt hole support frame with self-lubricating bearing, the tail end of the linear actuator is fixed on by first axle rotator bolt
In self-lubricating bearing, the linear actuator can be rotated around first axle rotator bolt.
3. four-way reversing valve according to claim 1, which is characterized in that covered on the front end projecting shaft of the linear actuator
Equipped with the second belt hole support frame for having self-lubricating bearing, one end that the outside crank is connected with linear actuator is provided with certainly
The first mounting hole of bearing is lubricated, second belt hole support frame and the first mounting hole are fixed by the second shaft shoulder bolt, institute
Stating outside crank and linear actuator can be rotated around the second shaft shoulder bolt；The one end being connected on the inside crank with connecting rod is set
It is equipped with the second mounting hole with self-lubricating bearing, the one end being connected on the connecting rod with inside crank is provided with bearing, the axis
It holds and is fixed with the second mounting hole by third shaft shoulder bolt, the inside crank and connecting rod can be carried out around third shaft shoulder bolt
Rotation.
4. four-way reversing valve according to claim 1, which is characterized in that the control shaft and valve body joint are provided with control
Shaft-cup plate processed, the control shaft can be rotated around control shaft cover board.
5. four-way reversing valve according to claim 1, which is characterized in that the control shaft cover board and valve body junction are arranged
There is O-ring.
6. a kind of heat-exchange system, which is characterized in that including water cooling heat exchanger, air cooling heat exchanger, electric expansion valve, compressor and
Four-way reversing valve as claimed in claims 1-5, wherein the first connection nozzle of the four-way reversing valve connects air-cooled heat exchange
Second connection nozzle of device, the four-way reversing valve connects water cooling heat exchanger, the entrance of the exhaust pipe mouth of the four-way reversing valve
Be connected with compressor, the outlet of the air-breathing nozzle of the four-way reversing valve is connected with compressor, the cold heat exchanger with it is air-cooled
Electric expansion valve is provided between heat exchanger, realized by the linear actuator of four-way reversing valve in heat-exchange system refrigeration and
Heating condition switches over.
7. a kind of heat-exchange system according to claim 6, which is characterized in that when in refrigeration mode, the four-way
The exhaust pipe mouth of reversal valve connect nozzle connection with first, and the air-breathing nozzle connect nozzle connection with second；When in heating
When mode, the exhaust pipe mouth of the four-way reversing valve connect nozzle connection with second, and the air-breathing nozzle connect nozzle with first
Connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811541432.8A CN109405342A (en) | 2018-12-17 | 2018-12-17 | Four-way reversing valve and heat-exchange system including the four-way reversing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811541432.8A CN109405342A (en) | 2018-12-17 | 2018-12-17 | Four-way reversing valve and heat-exchange system including the four-way reversing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109405342A true CN109405342A (en) | 2019-03-01 |
Family
ID=65459637
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811541432.8A Pending CN109405342A (en) | 2018-12-17 | 2018-12-17 | Four-way reversing valve and heat-exchange system including the four-way reversing valve |
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| CN (1) | CN109405342A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2140874Y (en) * | 1992-10-13 | 1993-08-25 | 苑堡棠 | Lightweight motor tricycle |
| CN1743709A (en) * | 2005-09-22 | 2006-03-08 | 刘瑞祥 | Hydraulic fast-oscillating valve |
| TW201020430A (en) * | 2008-09-30 | 2010-06-01 | David John Picton | Valve |
| CN201723776U (en) * | 2010-05-29 | 2011-01-26 | 无锡职业技术学院 | Semi-enclosed electric linear motion type 4-way reversing valve |
| CN205260985U (en) * | 2015-12-12 | 2016-05-25 | 浙江永盛科技股份有限公司 | Axial flow control valve |
| CN209588446U (en) * | 2018-12-17 | 2019-11-05 | 无锡职业技术学院 | Four-way reversing valve and heat-exchange system including the four-way reversing valve |
-
2018
- 2018-12-17 CN CN201811541432.8A patent/CN109405342A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2140874Y (en) * | 1992-10-13 | 1993-08-25 | 苑堡棠 | Lightweight motor tricycle |
| CN1743709A (en) * | 2005-09-22 | 2006-03-08 | 刘瑞祥 | Hydraulic fast-oscillating valve |
| TW201020430A (en) * | 2008-09-30 | 2010-06-01 | David John Picton | Valve |
| CN201723776U (en) * | 2010-05-29 | 2011-01-26 | 无锡职业技术学院 | Semi-enclosed electric linear motion type 4-way reversing valve |
| CN205260985U (en) * | 2015-12-12 | 2016-05-25 | 浙江永盛科技股份有限公司 | Axial flow control valve |
| CN209588446U (en) * | 2018-12-17 | 2019-11-05 | 无锡职业技术学院 | Four-way reversing valve and heat-exchange system including the four-way reversing valve |
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