CN106225280A - A kind of refrigeration or heat pump and a kind of Condensing units - Google Patents
A kind of refrigeration or heat pump and a kind of Condensing units Download PDFInfo
- Publication number
- CN106225280A CN106225280A CN201610733848.4A CN201610733848A CN106225280A CN 106225280 A CN106225280 A CN 106225280A CN 201610733848 A CN201610733848 A CN 201610733848A CN 106225280 A CN106225280 A CN 106225280A
- Authority
- CN
- China
- Prior art keywords
- refrigeration
- heat pump
- reservoir
- compressor
- mouth
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
- F25B1/00—Compression machines, plants or systems with non-reversible cycle
- F25B1/10—Compression machines, plants or systems with non-reversible cycle with multi-stage compression
-
- 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
-
- 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
- F25B29/00—Combined heating and refrigeration systems, e.g. operating alternately or simultaneously
- F25B29/003—Combined heating and refrigeration systems, e.g. operating alternately or simultaneously of the compression type system
-
- 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
-
- 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
- F25B41/30—Expansion means; Dispositions thereof
- F25B41/31—Expansion valves
-
- 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
- F25B41/30—Expansion means; Dispositions thereof
- F25B41/37—Capillary tubes
-
- 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
- F25B43/00—Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
- F25B43/006—Accumulators
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Power Engineering (AREA)
- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
Abstract
The invention discloses a kind of refrigeration or heat pump and a kind of Condensing units, described refrigeration or heat pump are provided with the first refrigeration or heat pump circuit, and described first refrigeration or heat pump circuit are at least sequentially connected in series connection are formed by compressor, condenser, the first reservoir, throttling arrangement, vaporizer；Described refrigeration or heat pump are additionally provided with the second refrigeration or heat pump circuit, described second refrigeration or heat pump circuit are freezed or heat pump circuit shared compressor with described first, and share identical condenser or vaporizer, without the first reservoir in described second refrigeration or heat pump circuit, or do not freeze or between the condenser of heat pump circuit and throttling arrangement second containing the first reservoir but the first reservoir.The present invention can make refrigeration or heat pump effective, reliability service under special operation condition, and improves running efficiency of system.
Description
Technical field
The present invention relates to refrigerating field, particularly relate to a kind of refrigeration or heat pump and a kind of Condensing units.
Background technology
First, in refrigeration system, if condensing pressure is higher, compressor exhaust temperature can rise, and compression ratio increases, refrigerating capacity
Reducing, power consumption increases, and condensing pressure is higher, is also easy to cause equipment breakage event.If condensing pressure is too low, particularly in the winter
Season, ambient temperature or cooling water temperature are relatively low, cause condensing pressure too low, so that pressure differential is the least before and after heating power expansion valve, supply
Hydraulic power is not enough, causes the refrigerant flow flowing through heating power expansion valve drastically to reduce, makes refrigerating capacity be substantially reduced, and even freeze dress
Put operating disorders.It addition, the compressor of most producers, also have the use requirement of minimum condensing pressure, even along with vapor pres-sure
The difference of power, minimum condensing pressure requires also different.Therefore, for ensureing refrigeration system and the reliably working of compressor, it is necessary to right
Condensing pressure is implemented to control.
The control method of condensing pressure, prior art mainly has two kinds:
1, controlling cooling water flow or cooling air quantity, for air-cooled, conventional has: 1. fan motor speed change, 2. wind
Valve control and regulation cooling air delivery, 3. condensation fan is opened, is stopped controlling, and these methods are applied in long-term ambient temperature higher than 4 DEG C
Above occasion is more effective；
2, using bypass control method to control refrigerant pressure from refrigerant side, concrete connected mode is: at condensator outlet
Installing a septum valve, the other end of septum valve connects reservoir entrance, enters with reservoir at exhaust outlet of compressor
The indirect bypass pipe of mouth, installs differential pressure control valve on bypass pipe.
Using both the above method, the refrigeration system Energy Efficiency Ratio when cold season is the most relatively low, with warm season even
Compare during summer, relatively.
Second, in condensing units refrigeration system, when using heat recovery mode, along with being stepped up of hot water temperature,
Cooling system amount progressively declines, and thus or cause users'comfort to decline, or refrigerating capacity deficiency causes on food temperature
Rise, so that needing to install the unit of greater ability.
3rd, for air-conditioning hot water integrated machine (trilogy supply), in the winter time during water heating, along with the progressively liter of hot water temperature
Height, the total heating capacity of system progressively declines.
Summary of the invention
The invention provides a kind of refrigeration or heat pump, the problems referred to above can be solved.
Technical scheme is as follows:
A kind of refrigeration or heat pump, be provided with the first refrigeration or heat pump circuit, and described first refrigeration or heat pump circuit are extremely
Few by compressor (11), the first condenser (21), the first reservoir (01), first throttle device (31), the first vaporizer (41)
Being sequentially connected in series connection composition, the air vent of wherein said compressor (11) connects described first condenser (21), described compressor
(11) air entry connects described first vaporizer (41)；Be additionally provided with the second refrigeration or heat pump circuit, described second refrigeration or
Heat pump circuit at least meets one of following four condition:
Condition A: described second refrigeration or heat pump circuit are at least by described compressor, the second heat exchanger, throttling arrangement, described
First vaporizer is sequentially connected in series connection composition, and wherein, the air vent of described compressor connects described second heat exchanger, described compression
The air entry of machine connects described first vaporizer；Without described first reservoir in described second refrigeration or heat pump circuit；
Condition B: described second refrigeration or heat pump circuit are at least by described compressor, the second heat exchanger, throttling arrangement, described
First vaporizer is sequentially connected in series connection composition, and wherein, the air vent of described compressor connects described second heat exchanger, described compression
The air entry of machine connects described first vaporizer；Containing described first reservoir in described second refrigeration or heat pump circuit, but institute
State between first reservoir described second heat exchanger and described throttling arrangement not in described second refrigeration or heat pump circuit；
Condition C: described second refrigeration or heat pump circuit at least by described compressor, described first condenser, throttling arrangement,
3rd heat exchanger is sequentially connected in series connection composition, and wherein, the air vent of described compressor connects described first condenser, described compression
The air entry of machine connects described 3rd heat exchanger；Without described first reservoir in described second refrigeration or heat pump circuit；
Condition D: described second refrigeration or heat pump circuit at least by described compressor, described first condenser, throttling arrangement,
3rd heat exchanger is sequentially connected in series connection composition, and wherein, the air vent of described compressor connects described first condenser, described compression
3rd heat exchanger described in the air entry UNICOM of machine；Containing described first reservoir in described second refrigeration or heat pump circuit, but institute
State between first reservoir described first condenser and described throttling arrangement not in described second refrigeration or heat pump circuit.
Further, in described condition A and described condition B, the most described first condenser of described second heat exchanger.
Further, in described condition C and described condition D, described 3rd the most described first vaporizer of heat exchanger.
Preferential, in described condition A and described condition C, described first reservoir passes through can be with the valve member of break-make with described
First vaporizer connection.
Preferential, in described condition B and described condition D, described first reservoir is positioned at described second refrigeration or heat pump returns
Between described throttling arrangement and described first vaporizer in road.
Preferential, in described condition B and described condition D, described first reservoir is positioned at described second refrigeration or heat pump returns
Between described compressor and described first condenser in road.
Further, in described second refrigeration or heat pump circuit, between described compressor and described first condenser also
It is arranged in series heat recovering heat exchanger.
Preferential, described heat recovering heat exchanger is the one in case tube heat exchanger, double-tube heat exchanger and plate type heat exchanger.
Preferential, in described second refrigeration or heat pump circuit, described heat recovering heat exchanger and described first condenser it
Between be also arranged in series the second reservoir.
Present invention also offers a kind of Condensing units, comprise compressor, condenser and reservoir, be provided with supply opening
And air entry, it being provided with the first path, described first path is at least by described air entry, described compressor, described condenser, institute
State reservoir, described supply opening is sequentially connected in series connection and is formed；Being additionally provided with alternate path, described alternate path is at least by described air-breathing
Mouth, described compressor, described condenser, described supply opening are sequentially connected in series connection composition；Without described storage in described alternate path
Containing described reservoir in liquid device, or described alternate path, but described reservoir is not in the described condensation of described alternate path
Between device and described supply opening.
Based on technique scheme, the present invention is by new refrigeration or heat pump circuit (i.e. second refrigeration or heat pump circuit)
The relative position of middle change the first reservoir or cancellation the first reservoir, make cold-producing medium actual in refrigeration or heat pump follow
Circular rector there occurs change, thus improves refrigeration or the heat pump efficiency under special operation condition and ability.
Accompanying drawing explanation
Fig. 1 is that the present invention is freezed or the theory of constitution schematic diagram of heat pump first embodiment.
Fig. 2 is that the present invention is freezed or the theory of constitution schematic diagram of heat pump the second embodiment.
Fig. 3 is that the present invention is freezed or the theory of constitution schematic diagram of heat pump the 3rd embodiment.
Fig. 4 is that the present invention is freezed or the theory of constitution schematic diagram of heat pump the 4th embodiment.
Fig. 5 is that the present invention is freezed or the theory of constitution schematic diagram of heat pump the 5th embodiment.
Fig. 6 is that the present invention is freezed or the theory of constitution schematic diagram of heat pump sixth embodiment.
Fig. 7 is that the present invention is freezed or the theory of constitution schematic diagram of heat pump the 7th embodiment.
Fig. 8 is that the present invention is freezed or the theory of constitution schematic diagram of heat pump the 8th embodiment.
Fig. 9 is that the present invention is freezed or the theory of constitution schematic diagram of heat pump the 9th embodiment.
Figure 10 is that the present invention is freezed or the theory of constitution schematic diagram of heat pump the tenth embodiment.
Figure 11 is that the present invention is freezed or the theory of constitution schematic diagram of heat pump the 11st embodiment.
Figure 12 is that the present invention is freezed or the theory of constitution schematic diagram of heat pump the 12nd embodiment.
Detailed description of the invention
Below in conjunction with drawings and Examples, technical scheme is described in further detail.
As it is shown in figure 1, freeze or the theory of constitution schematic diagram of heat pump first embodiment for the present invention.Wherein, compression
Machine 11, condenser 21, electromagnetic valve 61, reservoir 01, electromagnetic valve 62, expansion valve 31, vaporizer 41 are sequentially connected with, and form one and return
Road.It addition, set a bypass pipe between the outlet and the import of expansion valve 31 of condenser 21, and install on this bypass pipe
Electromagnetic valve 63.In addition, between the outlet and the import of vaporizer 41 of reservoir 01, also set a bypass pipe, and at this
Electromagnetic valve 64 and capillary tube 33 it is sequentially connected in series on bypass pipe.In the present embodiment, condenser 21 and vaporizer 41 all use air-cooled, should
Use is combined into the annual freezer needing refrigeration.
In the case of ambient temperature is higher, during refrigeration system work, electromagnetic valve 63 and 64 is turned off, electromagnetic valve 61 and 62
All open, after the refrigerant gas of compressor 11 compression and low pressure, the refrigerant gas of output High Temperature High Pressure to condenser 21, refrigeration
Become highly pressurised liquid after agent condensation, after electromagnetic valve 61, enter reservoir 01, from reservoir 01 high-pressure refrigerant liquid out
Body is after electromagnetic valve 62, then is throttled by expansion valve 31, becomes the two phase refrigerant of low-temp low-pressure, subsequently into vaporizer 41,
Become low-pressure gas after heat absorption evaporation, finally enter back into the air entry of compressor 11, form a complete kind of refrigeration cycle.
Along with the reduction of ambient temperature, when refrigeration system is run, condensing pressure is gradually lowered, when condensing pressure is less than pre-
If low setting value time, electromagnetic valve 61 and 62 is turned off, and electromagnetic valve 63 and 64 is all opened, and at this moment, compressor 11 sucks and compresses
After low pressure refrigerant gas, the cold-producing medium of output High Temperature High Pressure, to condenser 21, becomes highly pressurised liquid after cold-producing medium is condensed, then
After electromagnetic valve 63, it is directly entered expansion valve 31, expansion valve 31 after throttling, becomes the cold-producing medium of low-temp low-pressure, subsequently into
Vaporizer 41, becomes low-pressure gas after heat absorption evaporation, finally enters back into the air entry of compressor 11, form a complete refrigeration
Circulation.Additionally, the highly pressurised liquid in reservoir is through electromagnetic valve 64, then become two phase refrigerant, also after being throttled from capillary tube 33
Enter low pressure evaporator 41, along with the cold-producing medium in reservoir 01 is fewer and feweri, the refrigeration of actual participation circulation in refrigeration system
Agent gets more and more, and in the outlet of condenser 21, the degree of supercooling of cold-producing medium is increasing, and the condensing pressure of system is more and more higher,
Until condensing pressure reaches default intermediate settings value, electromagnetic valve 64 cuts out, and reservoir 01 is thoroughly isolated with refrigeration system, refrigeration
The refrigerant amount participating in circulation in system is not further added by, and refrigeration system is stable, due to the refrigerant liquid before expansion valve 31
Body has obvious degree of supercooling, and running efficiency of system is higher.
When ambient temperature raises again, condensing pressure also increases, until condensing pressure reaches default high setting value,
Electromagnetic valve 61 and 62 is all opened, and electromagnetic valve 63 and 64 is turned off, refrigeration system reenter ambient temperature higher in the case of described
Kind of refrigeration cycle.
As in figure 2 it is shown, freeze or the theory of constitution schematic diagram of heat pump the second embodiment for the present invention.The present embodiment is
The improvement done on the basis of above-mentioned first embodiment, is with first embodiment difference: bypass from the outlet of compressor 11
One pipeline, connects the entrance of reservoir 01 after electromagnetic valve 65.
In above-mentioned first embodiment, when condensing pressure is less than the low setting value preset, electromagnetic valve 61 and 62 is turned off, electricity
Magnet valve 63 and 64 is all opened, along with the cold-producing medium in reservoir 01 is fewer and feweri, and the refrigeration of actual participation circulation in refrigeration system
Agent gets more and more, but the pressure in reservoir 01 is more and more less, and the speed exporting cold-producing medium from reservoir 01 is the most more come
The slowest.In the present embodiment, electromagnetic valve 65 is normally closed, but when condensing pressure is less than the low setting value preset, electromagnetic valve 61 and 62 is equal
Closing, electromagnetic valve 63,64 and 65 is all opened, so that condensing pressure is rapidly achieved default intermediate settings value, the most again electricity
Magnet valve 64 and 65 is also switched off, such that it is able to make refrigeration system fast and stable.
As it is shown on figure 3, freeze or the theory of constitution schematic diagram of heat pump the 3rd embodiment for the present invention.The present embodiment is also
It is the improvement done on the basis of above-mentioned first embodiment, is with first embodiment difference:
1, between compressor 11 and vaporizer 41, gas-liquid separator 09 it has been arranged in series；
2, capillary tube 33 connection is the pipeline between vaporizer 41 and gas-liquid separator 09.
The detailed description of the invention of the present embodiment is with reference to above-mentioned first embodiment.
Shown part in dotted line frame in Fig. 3, is the theory of constitution signal of one embodiment of Condensing units of the present invention
Figure.
As shown in Figure 4, for present invention refrigeration or the theory of constitution schematic diagram of heat pump the 4th embodiment.Compressor 11,
Condenser 21, four-way change-over valve 66, reservoir 01, four-way change-over valve 67, expansion valve 31, vaporizer 41, gas-liquid separator 09 depend on
Secondary serial communication, wherein the d mouth of four-way change-over valve 66 connects the outlet of condenser 21, and the c mouth of four-way change-over valve 66 connects liquid storage
The import of device 01, the c mouth of four-way change-over valve 67 connects the outlet of reservoir 01, and the d mouth of four-way change-over valve 67 connects expansion valve 31
Entrance, the e mouth of four-way change-over valve 66 is connected with the e mouth of four-way change-over valve 67, the s mouth of four-way change-over valve 66 and four-way commutation
The s mouth of valve 67 is another pipeline risen between connection vaporizer 41 and gas-liquid separator 09 after being connected together.
Four-way change-over valve 66 has d mouth, e mouth, s mouth, four connectors of c mouth, during four-way change-over valve 66 power-off, d mouth and c mouth
Connection and e mouth connect with s mouth, and when four-way change-over valve 66 powers on, d mouth connects with e mouth and c mouth connects with s mouth, four-way change-over valve 67
With four-way change-over valve 66.
In the present embodiment, condenser 21 and vaporizer 41 all use air-cooled, and application scenario is similarly annual needs refrigeration
Freezer.
In the case of ambient temperature is higher, during refrigeration system work, the equal power-off of four-way change-over valve 66 and 67, compressor 11
After the refrigerant gas of compression and low pressure, the refrigerant gas of output High Temperature High Pressure to condenser 21, become high after cold-producing medium condensation
Press liquid, then sequentially pass through d mouth and the c mouth entrance reservoir 01 of four-way change-over valve 66, from reservoir 01 high-pressure refrigeration out
After agent liquid sequentially passes through c mouth and the d mouth of four-way change-over valve 67, then throttled by expansion valve 31, become the quarter-phase system of low-temp low-pressure
Cryogen, subsequently into vaporizer 41, becomes low-pressure gas after heat absorption evaporation, then after gas-liquid separator 09, finally enters pressure
The air entry of contracting machine 11, forms a complete kind of refrigeration cycle.
Along with the reduction of ambient temperature, when refrigeration system is run, condensing pressure is gradually lowered, when condensing pressure is less than pre-
If low setting value time, four-way change-over valve 66 and 67 is both powered up, and at this moment, the d mouth of four-way change-over valve 66 connects with e mouth and c mouth and s
Mouth connection, the d mouth of four-way change-over valve 67 connects with e mouth and c mouth connects with s mouth, and the cold-producing medium in reservoir 01 commutates through four-way
The c mouth of valve 66 and the c mouth of s mouth and four-way change-over valve 67 and s mouth enter the connection between vaporizer 41 and gas-liquid separator 09
Pipeline.Compressor 11 sucks and after compression and low pressure refrigerant gas, and the cold-producing medium of output High Temperature High Pressure is to condenser 21, cold-producing medium
Become highly pressurised liquid after condensed, then sequentially pass through d mouth and e mouth, the e mouth of four-way change-over valve 67 and the d mouth of four-way change-over valve 66
After be directly entered expansion valve 31, expansion valve 31 after throttling, become the cold-producing medium of low-temp low-pressure, subsequently into vaporizer 41, inhale
Become low-pressure gas after thermal evaporation, then after gas-liquid separator 09, finally enter the air entry of compressor 11, formed one complete
Whole kind of refrigeration cycle.But now actual in refrigeration system circulating mass of refrigerant increases, the particularly refrigeration before expansion valve 31
Agent liquid has obvious degree of supercooling, and running efficiency of system is higher.
When ambient temperature raises again, condensing pressure also increases, until condensing pressure reaches default high setting value,
The equal power-off of four-way change-over valve 66 and 67, refrigeration system reenter ambient temperature higher in the case of described kind of refrigeration cycle.
Shown part in dotted line frame in Fig. 4, is the theory of constitution signal of one embodiment of Condensing units of the present invention
Figure.
As it is shown in figure 5, freeze or the theory of constitution schematic diagram of heat pump the 5th embodiment for the present invention.Wherein, compression
Machine 11, condenser 21, electromagnetic valve 68, reservoir 01, expansion valve 31, vaporizer 41 are sequentially connected in series connection, the two ends of electromagnetic valve 68
Being arranged in parallel expansion valve 32, the two ends of expansion valve 31 have been arranged in parallel electromagnetic valve 69.In the present embodiment, condenser 21 and evaporation
Device 41 all uses air-cooled, and application scenario is the annual freezer needing refrigeration.
In the case of ambient temperature is higher, during refrigeration system work, electromagnetic valve 68 is opened, and electromagnetic valve 69 cuts out, compression
After the refrigerant gas of machine 11 compression and low pressure, the refrigerant gas of output High Temperature High Pressure to condenser 21, become after cold-producing medium condensation
For highly pressurised liquid, after electromagnetic valve 68, enter reservoir 01, from reservoir 01 high pressure refrigerant liquid out through expanding
Valve 31 throttles, and becomes the two phase refrigerant of low-temp low-pressure, subsequently into vaporizer 41, becomes low-pressure gas after heat absorption evaporation,
After enter back into the air entry of compressor 11, form a complete kind of refrigeration cycle.
Along with the reduction of ambient temperature, when refrigeration system is run, condensing pressure is gradually lowered, when condensing pressure is less than pre-
If low setting value time, electromagnetic valve 68 cuts out, and electromagnetic valve 69 is opened, and at this moment, compressor 11 sucks and compression and low pressure cold-producing medium gas
After body, the cold-producing medium of output High Temperature High Pressure, to condenser 21, becomes highly pressurised liquid, then is saved by expansion valve 32 after cold-producing medium is condensed
After stream, becoming the cold-producing medium of low-temp low-pressure, enter back into vaporizer 41 then in turn through reservoir 01 and electromagnetic valve 69, heat absorption is steamed
Become low-pressure gas after Faing, finally enter back into the air entry of compressor 11, form a complete kind of refrigeration cycle.Due to from expansion
What valve 32 entered reservoir 01 is two phase refrigerant, and existing gas also has liquid, therefore after system run all right, in reservoir 01
Liquid level close to bottom, so cause in refrigeration system actual circulating mass of refrigerant to increase, the condensing pressure of system is also
Can rise, the refrigerant liquid before expansion valve 32 there will be obvious degree of supercooling, and running efficiency of system is higher.
When ambient temperature raises again, condensing pressure also increases, until condensing pressure reaches default high setting value,
Electromagnetic valve 68 is opened, and electromagnetic valve 69 cuts out, refrigeration system reenter ambient temperature higher in the case of described kind of refrigeration cycle.
As shown in Figure 6, for present invention refrigeration or the theory of constitution schematic diagram of heat pump sixth embodiment.Wherein, compression
The air vent of machine 11 connects a mouth of two-bit triplet electromagnetic valve 70, and the b mouth of two-bit triplet electromagnetic valve 70 is simultaneously connected with condenser 21
Entrance and the outlet of check valve 73, the c mouth of two-bit triplet electromagnetic valve 70 is simultaneously connected with the entrance of reservoir 01 and check valve 72
Outlet, the outlet of reservoir 01 is simultaneously connected with b mouth and the entrance of check valve 73 of two-bit triplet electromagnetic valve 71, two-bit triplet electromagnetism
The c mouth of valve 71 is simultaneously connected with entrance and the outlet of condenser 21 of check valve 72, a mouth warp the most successively of two-bit triplet electromagnetic valve 71
Cross expansion valve 31 and the air entry connecting compressor 11 after vaporizer 41.
Two-bit triplet electromagnetic valve 70 has a mouth, b mouth and three connectors of c mouth, during two-bit triplet electromagnetic valve 70 power-off, its a mouth
Connecting with b mouth and c mouth all disconnects with b mouth with a mouth, c mouth, when two-bit triplet electromagnetic valve 70 powers on, its a mouth connects with c mouth and b mouth
All disconnecting with c mouth with a mouth, b mouth, two-bit triplet electromagnetic valve 71 is with two-bit triplet electromagnetic valve 70.
The circulating direction of check valve 72 is to flow to outlet from its import, and the most obstructed, check valve 73 is with check valve 72.
In the present embodiment, condenser 21 and vaporizer 41 all use air-cooled, and application scenario is the annual freezer needing refrigeration.
In the case of ambient temperature is higher, during refrigeration system work, the equal power-off of two-bit triplet electromagnetic valve 70 and 71, compression
After the refrigerant gas of machine 11 compression and low pressure, the refrigerant gas of output High Temperature High Pressure, refrigerant gas sequentially passes through two three
The a mouth of three-way electromagnetic valve 70 and b mouth enter condenser 21, become highly pressurised liquid, then sequentially pass through check valve 72 after cold-producing medium condensation
Enter reservoir 01, sequentially pass through b mouth and a mouth of two-bit triplet electromagnetic valve 71 from reservoir 01 high pressure refrigerant liquid out
Enter expansion valve 31, after throttling, become the two phase refrigerant of low-temp low-pressure, subsequently into vaporizer 41, after heat absorption evaporation, become low
Calm the anger body, finally enter back into the air entry of compressor 11, form a complete kind of refrigeration cycle.
Along with the reduction of ambient temperature, when refrigeration system is run, condensing pressure is gradually lowered, when condensing pressure is less than pre-
If low setting value time, two-bit triplet electromagnetic valve 70 and 71 is both powered up, at this moment, compressor 11 suck and compression and low pressure cold-producing medium gas
After body, the refrigerant gas of output High Temperature High Pressure, refrigerant gas enters condensation after sequentially passing through reservoir 01 and check valve 73
Device 21, becomes highly pressurised liquid, then sequentially passes through c mouth and a mouth entrance expansion valve of two-bit triplet electromagnetic valve 71 after cold-producing medium condensation
31, become the cold-producing medium of low-temp low-pressure after throttling, subsequently into vaporizer 41, after heat absorption evaporation, become low-pressure gas, the most again
Enter the air entry of compressor 11, form a complete kind of refrigeration cycle.It is high pressure superheater gas due to enter reservoir 01
Cold-producing medium, therefore after system run all right, is gaseous refrigerant and without liquid refrigerant, so causes refrigeration in reservoir 01
Circulating mass of refrigerant actual in system increases, and the condensing pressure of system also can rise, the refrigerant liquid before expansion valve 31
There will be obvious degree of supercooling, running efficiency of system is higher.
When ambient temperature raises again, condensing pressure also increases, until condensing pressure reaches default high setting value,
The equal power-off of two-position three way magnetic valve 70 and 71, refrigeration system reenter ambient temperature higher in the case of described kind of refrigeration cycle.
Shown part in dotted line frame in Fig. 6, is the theory of constitution signal of one embodiment of Condensing units of the present invention
Figure.
As it is shown in fig. 7, freeze or the theory of constitution schematic diagram of heat pump the 7th embodiment for the present invention.Wherein, compression
The refrigerant side entrance of the air vent adapter sleeve heat exchange of heat pipe 51 of machine 11, the refrigerant side outlet of double-tube heat exchanger 51 connects two
The a mouth of three-way magnetic valve 70, the b mouth of two-bit triplet electromagnetic valve 70 connects the c mouth of two-bit triplet electromagnetic valve 71, two-bit triplet electromagnetism
The c mouth of valve 70 connects the b mouth of two-bit triplet electromagnetic valve 71, the c of one end connection two-bit triplet electromagnetic valve 70 of two-way reservoir 01
Pipeline between mouth and the b mouth of two-bit triplet electromagnetic valve 71, the other end of two-way reservoir 01 connects one end of condenser 21, cold
Pipeline between b mouth and the c mouth of two-bit triplet electromagnetic valve 71 of the other end connection two-bit triplet electromagnetic valve 70 of condenser 21.Two
The a mouth of three-way magnetic valve 71 sequentially passes through expansion valve 31 and connects the air entry of compressor 11 after vaporizer 41.Double-tube heat exchanger
The water side also serial communication of 51 has feed pump 50.
Two-bit triplet electromagnetic valve 70 has a mouth, b mouth and three connectors of c mouth, during two-bit triplet electromagnetic valve 70 power-off, its a mouth
Connecting with b mouth and c mouth all disconnects with b mouth with a mouth, c mouth, when two-bit triplet electromagnetic valve 70 powers on, its a mouth connects with c mouth and b mouth
All disconnecting with c mouth with a mouth, b mouth, two-bit triplet electromagnetic valve 71 is with two-bit triplet electromagnetic valve 70.
In the present embodiment, condenser 21 and vaporizer 41 all use air-cooled, and application scenario is the annual freezer needing refrigeration,
The heat that double-tube heat exchanger 51 reclaims is used for providing domestic hot-water.
The system of the present embodiment has three kinds of mode of operations: refrigeration mode, heat recovery mode and high-temperature-hot-water pattern.
During refrigeration mode, water pump 50 power-off, the equal power-off of two-bit triplet electromagnetic valve 70 and 71, system run time, cold-producing medium from
Double-tube heat exchanger 51, a mouth of two-bit triplet electromagnetic valve 70, the b of two-bit triplet electromagnetic valve 70 is sequentially passed through after compressor 11 output
Mouth, the b mouth of condenser 21, two-way reservoir 01, two-bit triplet electromagnetic valve 71, a mouth of two-bit triplet electromagnetic valve 71, expansion valve
31, vaporizer 41, return compressor 11, form a complete kind of refrigeration cycle.Wherein, cold-producing medium is cold in condenser 21
Solidifying, throttle through expansion valve 31, heat absorption evaporation in vaporizer 41, reservoir 01 middle and upper part is higher pressure refrigerant gas, bottom
For high pressure refrigerant liquid.
During heat recovery mode, water pump 50 powers on, and two-bit triplet electromagnetic valve 70 and 71 the most all powers on, when system is run, and refrigeration
Agent, after compressor 11 exports, sequentially passes through double-tube heat exchanger 51, a mouth of two-bit triplet electromagnetic valve 70, two-bit triplet electromagnetic valve
The c mouth of 70, two-way reservoir 01, condenser 21, the c mouth of two-bit triplet electromagnetic valve 71, a mouth of two-bit triplet electromagnetic valve 71, swollen
Swollen valve 31, vaporizer 41, return compressor 11, forms a complete kind of refrigeration cycle.Wherein, cold-producing medium is at double-tube heat exchanger
Condensing in 51, condenser 21 becomes subcooler, throttles through expansion valve 31, and heat absorption evaporation in vaporizer 41, in reservoir 01
Top is higher pressure refrigerant gas, and bottom is high pressure refrigerant liquid.Due to the subcooler effect of condenser 21, along with hot water temperature
The rising of degree, the refrigerating capacity of system reduces hardly！
During high-temperature-hot-water pattern, system is run similar with refrigeration mode, and difference is during high-temperature-hot-water pattern to open water pump
50, at this moment, the higher hot water of temperature can be produced by reclaiming the superheat of compressor 11 discharging refrigerant.
Obviously, the present embodiment also can south China need throughout the year the area of refrigeration for domestic, high while refrigeration
Effect recovering condensing heat is for domestic hot-water.
Shown part in dotted line frame in Fig. 7, is the theory of constitution signal of one embodiment of Condensing units of the present invention
Figure.
As shown in Figure 8, for present invention refrigeration or the theory of constitution schematic diagram of heat pump the 8th embodiment.Wherein, compression
The refrigerant side entrance of the air vent connecting plate type heat exchanger 51 of machine 11, the refrigerant side outlet of plate type heat exchanger 51 connects liquid storage
The import of device 02, the outlet of reservoir 02 connects the entrance of condenser 21, and the outlet of condenser 21 connects the d of four-way change-over valve 66
Mouthful, the e mouth of four-way change-over valve 66 is connected with the e mouth of four-way change-over valve 67, and the c mouth of four-way change-over valve 66 connects reservoir 01
Import, the outlet of reservoir 01 connects the c mouth of four-way change-over valve 67, and the d mouth of four-way change-over valve 67 sequentially passes through expansion valve 31 He
Connecting the air entry of compressor 11 after vaporizer 41, four-way change-over valve 66 is another after being connected with the s mouth of 67 plays connection expansion valve
Pipeline between 31 and vaporizer 41, meanwhile, is also configured with blower fan 20 for condenser 21, is configured with blower fan 40 for vaporizer 41,
Water side for plate type heat exchanger 51 is configured with water pump 50.
Four-way change-over valve 66 has d mouth, e mouth, s mouth, four connectors of c mouth, during four-way change-over valve 66 power-off, d mouth and c mouth
Connection and e mouth connect with s mouth, and when four-way change-over valve 66 powers on, d mouth connects with e mouth and c mouth connects with s mouth, four-way change-over valve 67
With four-way change-over valve 66.
The system of the present embodiment has three kinds of mode of operations: refrigeration mode, heat recovery mode and high-temperature-hot-water pattern.
During refrigeration mode, water pump 50 power-off, the equal power-off of four-way change-over valve 66 and 67, blower fan 20 and 40 all opens, and system is transported
During row, cold-producing medium sequentially passes through plate type heat exchanger 51, reservoir 02, condenser 21, four-way change-over valve after compressor 11 exports
The d mouth of 66, the c mouth of four-way change-over valve 66, reservoir 01, the c mouth of four-way change-over valve 67, the d mouth of four-way change-over valve 67, expansion valve
31, vaporizer 41, return compressor 11, form a complete kind of refrigeration cycle.Wherein, cold-producing medium is cold in condenser 21
Solidifying, throttle through expansion valve 31, in vaporizer 41, heat absorption evaporation, is higher pressure refrigerant gas, reservoir in reservoir 02
01 middle and upper part is higher pressure refrigerant gas, and bottom is high pressure refrigerant liquid.
During heat recovery mode, water pump 50 powers on, and four-way change-over valve 66 and 67 the most all powers on, and blower fan 20 and 40 is all opened, and is
When system runs, cold-producing medium, after compressor 11 exports, sequentially passes through plate type heat exchanger 51, reservoir 02, condenser 21, four-way change
To the d mouth of valve 66, the e mouth of four-way change-over valve 66, the e mouth of four-way change-over valve 67, the d mouth of four-way change-over valve 67, expansion valve 31, steam
Send out device 41, return compressor 11, form a complete kind of refrigeration cycle.Wherein, cold-producing medium condenses in plate type heat exchanger 51,
Condenser 21 becomes subcooler, throttles through expansion valve 31, and heat absorption evaporation in vaporizer 41, reservoir 02 middle and upper part is high pressure
Refrigerant gas, bottom is high pressure refrigerant liquid, and reservoir 01 connects with low-pressure side but is not involved in system circulation.Due to condensation
The subcooler effect of device 21, along with the rising of hot water temperature, the refrigerating capacity of system reduces hardly！
During high-temperature-hot-water pattern, system is run similar with refrigeration mode, and difference is during high-temperature-hot-water pattern to open water pump
50, at this moment, the higher hot water of temperature can be produced by reclaiming the superheat of 11 discharging refrigerants of compressor.
As it is shown in figure 9, freeze or the theory of constitution schematic diagram of heat pump the 9th embodiment for the present invention.Wherein, compression
Machine 11, the refrigerant side of double-tube heat exchanger 51, reservoir 02, outdoor heat exchanger 21, electromagnetic valve 68, reservoir 01, expansion valve 31,
Indoor heat exchanger 41 is sequentially connected in series, be also connected in parallel at the two ends of electromagnetic valve 68 expansion valve 32, at expansion valve 31 two
End is also parallel with electromagnetic valve 69, and the side, water route for double-tube heat exchanger 51 is provided with feed pump 50, is provided with for outdoor heat exchanger 21
Blower fan 20, is provided with blower fan 40 for indoor heat exchanger 41.
The system of the present embodiment has three kinds of mode of operations: refrigeration mode, heat recovery mode and high-temperature-hot-water pattern.
During refrigeration mode, water pump 50 power-off, electromagnetic valve 68 opens, and electromagnetic valve 69 cuts out, and blower fan 20 and 40 is all opened, system
During operation, cold-producing medium sequentially passes through double-tube heat exchanger 51, reservoir 02, outdoor heat exchanger 21, electromagnetism after compressor 11 exports
Valve 68, reservoir 01, expansion valve 31, indoor heat exchanger 41, return compressor 11, forms a complete kind of refrigeration cycle.Its
In, cold-producing medium condenses in outdoor heat exchanger 21, throttles through expansion valve 31, heat absorption evaporation, liquid storage in indoor heat exchanger 41
Being higher pressure refrigerant gas in device 02, reservoir 01 middle and upper part is higher pressure refrigerant gas, and bottom is high pressure refrigerant liquid.
During heat recovery mode, water pump 50 powers on, and electromagnetic valve 68 cuts out, and electromagnetic valve 69 is opened, and blower fan 20 and 40 is all opened, and is
When system runs, cold-producing medium, after compressor 11 exports, sequentially passes through double-tube heat exchanger 51, reservoir 02, outdoor heat exchanger 21, swollen
Swollen valve 32, reservoir 01, electromagnetic valve 69, indoor heat exchanger 41, return compressor 11, forms a complete kind of refrigeration cycle.
Wherein, cold-producing medium condenses in double-tube heat exchanger 51, and outdoor heat exchanger 21 becomes subcooler, throttles through expansion valve 32, in room
Heat absorption evaporation in interior heat exchanger 41, reservoir 02 middle and upper part is higher pressure refrigerant gas, and bottom is high pressure refrigerant liquid, liquid storage
Device 01 is in low-pressure side, and its refrigerant level is in bottom.Due to the subcooler effect of outdoor heat exchanger 21, along with hot water temperature's
Raising, the refrigerating capacity of system reduces hardly！
During high-temperature-hot-water pattern, system is run similar with refrigeration mode, and difference is during high-temperature-hot-water pattern to open water pump
50, at this moment, the higher hot water of temperature can be produced by reclaiming the superheat of 11 discharging refrigerants of compressor.
As shown in Figure 10, for present invention refrigeration or the theory of constitution schematic diagram of heat pump the tenth embodiment.The present embodiment
It is to improve on the basis of the 9th embodiment, improves as follows:
1, being provided with a four-way change-over valve 74 in the present embodiment, four-way change-over valve 74 has d mouth, e mouth, s mouth, c mouth four
Individual connector, during four-way change-over valve 74 power-off, d mouth connects with c mouth and e mouth connects with s mouth, when four-way change-over valve 74 powers on, d mouth
Connect with e mouth and c mouth connects with s mouth.Concrete connected mode is: the d mouth of four-way change-over valve 74 and c mouth are serially connected in reservoir 02 He
Between outdoor heat exchanger 21, its d mouth connects reservoir 02, c mouth junction chamber external heat exchanger 21；The e mouth of four-way change-over valve 74 and s mouth
Being serially connected between indoor heat exchanger 41 and compressor 11, its e mouth connects indoor heat exchanger 41, and s mouth connects compressor 11；
2, reservoir 01 is two-way reservoir, and expansion valve 31 and 32 is Bidirectional expansion valve, and electromagnetic valve 68 and 69 is double
To electromagnetic valve.
The system of the present embodiment has six kinds of mode of operations: refrigeration mode, heat recovery mode, high-temperature-hot-water pattern, heat mould
Formula, heat+water heating pattern, independent water heating pattern.
During refrigeration mode, water pump 50 power-off, four-way change-over valve 74 power-off, electromagnetic valve 68 opens, and electromagnetic valve 69 cuts out, blower fan
20 and 40 all open, system run time, cold-producing medium from compressor 11 export after sequentially pass through double-tube heat exchanger 51, reservoir 02,
The d mouth of four-way change-over valve 74, the c mouth of four-way change-over valve 74, outdoor heat exchanger 21, electromagnetic valve 68, reservoir 01, expansion valve 31,
Indoor heat exchanger 41, the e mouth of four-way change-over valve 74, the s mouth of four-way change-over valve 74, return compressor 11, forms one completely
Kind of refrigeration cycle.Wherein, cold-producing medium condenses in outdoor heat exchanger 21, throttles through expansion valve 31, in indoor heat exchanger 41
Heat absorption evaporation, is higher pressure refrigerant gas in reservoir 02, reservoir 01 middle and upper part is higher pressure refrigerant gas, and bottom is high
Compression refrigerant liquid.
During heat recovery mode, water pump 50 powers on, four-way change-over valve 74 power-off, and electromagnetic valve 68 cuts out, and electromagnetic valve 69 is opened, wind
Machine 20 and 40 is all opened, and when system is run, cold-producing medium, after compressor 11 exports, sequentially passes through double-tube heat exchanger 51, reservoir
02, the d mouth of four-way change-over valve 74, the c mouth of four-way change-over valve 74, outdoor heat exchanger 21, expansion valve 32, reservoir 01, electromagnetic valve
69, indoor heat exchanger 41, the e mouth of four-way change-over valve 74, the s mouth of four-way change-over valve 74, returns compressor 11, formed one complete
Whole kind of refrigeration cycle.Wherein, cold-producing medium condenses in double-tube heat exchanger 51, and outdoor heat exchanger 21 becomes subcooler, cold-producing medium warp
Crossing expansion valve 32 to throttle, heat absorption evaporation in indoor heat exchanger 41, reservoir 02 middle and upper part is higher pressure refrigerant gas, and bottom is
High pressure refrigerant liquid, reservoir 01 is in low-pressure side, and its refrigerant level is in bottom.Subcooler due to outdoor heat exchanger 21
Effect, along with the rising of hot water temperature, the refrigerating capacity of system reduces hardly！
During high-temperature-hot-water pattern, system is run similar with refrigeration mode, and difference is during high-temperature-hot-water pattern to open water pump
50, at this moment, the higher hot water of temperature can be produced by reclaiming the superheat of 11 discharging refrigerants of compressor.
During heating mode, water pump 50 power-off, four-way change-over valve 74 powers on, and electromagnetic valve 68 cuts out, and electromagnetic valve 69 is opened, blower fan
20 and 40 all open, system run time, cold-producing medium from compressor 11 export after sequentially pass through double-tube heat exchanger 51, reservoir 02,
The d mouth of four-way change-over valve 74, the e mouth of four-way change-over valve 74, indoor heat exchanger 41, electromagnetic valve 69, reservoir 01, expansion valve 32,
Outdoor heat exchanger 21, the c mouth of four-way change-over valve 74, the s mouth of four-way change-over valve 74, return compressor 11, forms one completely
Heat pump cycle.Wherein, cold-producing medium condenses in indoor heat exchanger 41, throttles through expansion valve 32, in outdoor heat exchanger 21
Heat absorption evaporation, is higher pressure refrigerant gas in reservoir 02, reservoir 01 middle and upper part is higher pressure refrigerant gas, and bottom is high
Compression refrigerant liquid.
Heat+water heating pattern time, water pump 50 powers on, and four-way change-over valve 74 powers on, and electromagnetic valve 68 is opened, and electromagnetic valve 69 closes
Closing, blower fan 20 and 40 is all opened, and when system is run, cold-producing medium, after compressor 11 exports, sequentially passes through double-tube heat exchanger 51, storage
Liquid device 02, the d mouth of four-way change-over valve 74, the e mouth of four-way change-over valve 74, indoor heat exchanger 41, expansion valve 31, reservoir 01, electricity
Magnet valve 68, outdoor heat exchanger 21, the c mouth of four-way change-over valve 74, the s mouth of four-way change-over valve 74, return compressor 11, forms one
Individual complete heat pump cycle.Wherein, cold-producing medium condenses in double-tube heat exchanger 51, and indoor heat exchanger 41 becomes subcooler, refrigeration
Agent throttles through expansion valve 31, heat absorption evaporation in outdoor heat exchanger 21, and reservoir 02 middle and upper part is higher pressure refrigerant gas, under
Portion is high pressure refrigerant liquid, and reservoir 01 is in low-pressure side, and its refrigerant level is in bottom.Mistake due to indoor heat exchanger 41
Cooler effect, along with the rising of hot water temperature, total heating capacity of system is compared heating mode and will not be reduced, on the contrary due to compression
The rising of acc power and make total heating capacity increase！
Individually during water heating pattern, the operation of system with heat+water heating pattern is about the same, differs only in individually system
Blower fan 40 to be closed during hot-water mode.
As shown in figure 11, for present invention refrigeration or the theory of constitution schematic diagram of heat pump the 11st embodiment.This enforcement
Example is the improvement doing a upper embodiment, improves as follows:
Bidirectional expansion valve 31 in parallel in a upper embodiment and bidirectional electromagnetic valve 69 is replaced with electric expansion valve 31；
Bidirectional expansion valve 32 in parallel in a upper embodiment and bidirectional electromagnetic valve 68 is replaced with electric expansion valve 32.
Carrying out practically pattern and ruuning situation are with reference to a upper embodiment, it is only necessary to note:
When a upper embodiment needs to open electromagnetic valve 68, the most just make electric expansion valve 32 standard-sized sheet；
When a upper embodiment needs to open electromagnetic valve 69, the most just make electric expansion valve 31 standard-sized sheet.
As shown in figure 12, for present invention refrigeration or the theory of constitution schematic diagram of heat pump the 12nd embodiment.This enforcement
Example is to improve on the basis of a upper embodiment, improves as follows: be also provided with a four-way change-over valve 75 in the present embodiment,
Four-way change-over valve 75 has d mouth, e mouth, s mouth, four connectors of c mouth, and during four-way change-over valve 75 power-off, d mouth connects and e with c mouth
Mouth connects with s mouth, and when four-way change-over valve 74 powers on, d mouth connects with e mouth and c mouth connects with s mouth.The present embodiment also sets up list
To valve 72, its circulating direction is to flow to outlet from its import, the most obstructed.
Concrete connected mode is: the d mouth of four-way change-over valve 75 and e mouth are serially connected in the e mouth of four-way change-over valve 74 and indoor are changed
Between hot device 41, its d mouth connects the e mouth of four-way change-over valve 74, and e mouth connects indoor heat exchanger 41；The s mouth of four-way change-over valve 75 and
The s mouth of four-way change-over valve 74 air entry with compressor 11 together is connected；The c mouth of four-way change-over valve 75 and the import of check valve 76
Connect, the pipeline between outlet reservoir 01 and the electric expansion valve 31 of check valve 76.
The system of the present embodiment has six kinds of mode of operations: refrigeration mode, heat recovery mode, high-temperature-hot-water pattern, heat mould
Formula, heat+water heating pattern, independent water heating pattern.
During refrigeration mode, water pump 50 power-off, the equal power-off of four-way change-over valve 74 and 75, electric expansion valve 32 standard-sized sheet, electronics is swollen
Swollen valve 31 throttles, and blower fan 20 and 40 is all opened, and when system is run, cold-producing medium sequentially passes through sleeve heat exchange after compressor 11 exports
Device 51, reservoir 02, the d mouth of four-way change-over valve 74, the c mouth of four-way change-over valve 74, outdoor heat exchanger 21, electric expansion valve 32,
Reservoir 01, electric expansion valve 31, indoor heat exchanger 41, the e mouth of four-way change-over valve 75, the s mouth of four-way change-over valve 75, return
Compressor 11, forms a complete kind of refrigeration cycle.Wherein, cold-producing medium condenses in outdoor heat exchanger 21, through electronic expansion
Valve 31 throttles, and in indoor heat exchanger 41, heat absorption evaporation, is higher pressure refrigerant gas, reservoir 01 middle and upper part in reservoir 02
For higher pressure refrigerant gas, bottom is high pressure refrigerant liquid.
During heat recovery mode, water pump 50 powers on, and the equal power-off of four-way change-over valve 74 and 75, electric expansion valve 32 throttles, electronics
Expansion valve 31 standard-sized sheet, blower fan 20 and 40 is all opened, and when system is run, cold-producing medium, after compressor 11 exports, sequentially passes through sleeve pipe
Heat exchanger 51, reservoir 02, the d mouth of four-way change-over valve 74, the c mouth of four-way change-over valve 74, outdoor heat exchanger 21, electric expansion valve
32, reservoir 01, electric expansion valve 31, indoor heat exchanger 41, the e mouth of four-way change-over valve 75, the s mouth of four-way change-over valve 75, then
Return to compressor 11, form a complete kind of refrigeration cycle.Wherein, cold-producing medium condenses in double-tube heat exchanger 51, outdoor heat exchange
Device 21 becomes subcooler, and cold-producing medium throttles through electric expansion valve 32, and heat absorption evaporation in indoor heat exchanger 41, in reservoir 02
Top is higher pressure refrigerant gas, and bottom is high pressure refrigerant liquid, and reservoir 01 is in low-pressure side, and its refrigerant level is the end of at
Portion.Due to the subcooler effect of outdoor heat exchanger 21, along with the rising of hot water temperature, the refrigerating capacity of system reduces hardly！
During high-temperature-hot-water pattern, system is run similar with refrigeration mode, and difference is during high-temperature-hot-water pattern to open water pump
50, at this moment, the higher hot water of temperature can be produced by reclaiming the superheat of 11 discharging refrigerants of compressor.
During heating mode, water pump 50 power-off, four-way change-over valve 74 and 75 is both powered up, and electric expansion valve 31 standard-sized sheet, electronics is swollen
Swollen valve 32 throttles, and blower fan 20 and 40 is all opened, and when system is run, cold-producing medium sequentially passes through sleeve heat exchange after compressor 11 exports
Device 51, reservoir 02, the d mouth of four-way change-over valve 74, the e mouth of four-way change-over valve 74, the d mouth of four-way change-over valve 75, four-way commutate
The e mouth of valve 75, indoor heat exchanger 41, electric expansion valve 31, reservoir 01, electric expansion valve 32, outdoor heat exchanger 21, four-way change
To the c mouth of valve 74, the s mouth of four-way change-over valve 74, return compressor 11, form a complete heat pump cycle.Wherein, refrigeration
Agent condenses in indoor heat exchanger 41, throttles through electric expansion valve 32, heat absorption evaporation, reservoir 02 in outdoor heat exchanger 21
In be higher pressure refrigerant gas, reservoir 01 middle and upper part is higher pressure refrigerant gas, and bottom is high pressure refrigerant liquid.
Heat+water heating pattern time, water pump 50 powers on, and four-way change-over valve 74 and 75 is both powered up, electric expansion valve 32 standard-sized sheet,
Electric expansion valve 31 throttles, and blower fan 20 and 40 is all opened, and when system is run, cold-producing medium, after compressor 11 exports, sequentially passes through
Double-tube heat exchanger 51, reservoir 02, the d mouth of four-way change-over valve 74, the e mouth of four-way change-over valve 74, the d mouth of four-way change-over valve 75,
The e mouth of four-way change-over valve 75, indoor heat exchanger 41, electric expansion valve 31, reservoir 01, electric expansion valve 32, outdoor heat exchanger
21, the s mouth of the c mouth of four-way change-over valve 74, four-way change-over valve 74, returns compressor 11, forms a complete heat pump cycle.
Wherein, cold-producing medium condenses in double-tube heat exchanger 51, and indoor heat exchanger 41 becomes subcooler, and cold-producing medium is through electric expansion valve 31
Throttling, heat absorption evaporation in outdoor heat exchanger 21, reservoir 02 middle and upper part is higher pressure refrigerant gas, and bottom is high-pressure refrigerant
Liquid, reservoir 01 is in low-pressure side, and its refrigerant level is in bottom.Due to the subcooler effect of indoor heat exchanger 41, along with
The rising of hot water temperature, total heating capacity of system is compared heating mode and will not be reduced, on the contrary due to the rising of compressor horsepower
And make total heating capacity increase！
Individually during water heating pattern, water pump 50 powers on, and four-way change-over valve 74 powers on, and four-way change-over valve 75 power-off, electronics is swollen
Swollen valve 31 is fully closed, and electric expansion valve 32 throttles, and blower fan 20 is opened, and blower fan 40 is opened or shut down, when system is run, and cold-producing medium
After compressor 11 exports, sequentially pass through double-tube heat exchanger 51, reservoir 02, the d mouth of four-way change-over valve 74, four-way change-over valve 74
E mouth, the d mouth of four-way change-over valve 75, the c mouth of four-way change-over valve 75, check valve 76, reservoir 01, electric expansion valve 32, outdoor
Heat exchanger 21, the c mouth of four-way change-over valve 74, the s mouth of four-way change-over valve 74, return compressor 11, forms a complete heat
Pump circulates.Wherein, cold-producing medium condenses in double-tube heat exchanger 51, and cold-producing medium throttles through electric expansion valve 32, and changes in outdoor
Heat absorption evaporation in hot device 21, reservoir 02 middle and upper part is higher pressure refrigerant gas, and bottom is high pressure refrigerant liquid, reservoir 01
Middle and upper part is higher pressure refrigerant gas, and bottom is high pressure refrigerant liquid, and indoor heat exchanger 41 connects with low-pressure side but is not involved in
System circulates.
The present embodiment essential difference is in that with a upper embodiment: individually during water heating pattern, indoor heat exchanger 41 is not joined
Circulate with system.Comparing an embodiment, the advantage of the present embodiment essentially consists in: summer, room, indoor heat exchanger 41 place
If temperature has met requirement, or room is without refrigeration, then individually during water heating pattern, high-temperature high-pressure refrigerant will not
Flow through indoor heat exchanger 41, the most still can be with opening chamber's inner blower 40.
Finally should be noted that: above example is merely to illustrate technical scheme and is not intended to limit, institute
Belong to technical field it is to be appreciated by one skilled in the art that still the detailed description of the invention of the present invention and application can be repaiied
Change or portion of techniques feature is carried out equivalence replacement.So, without departing from the spirit of technical solution of the present invention, all should contain
Cover in the middle of the technical scheme scope that the present invention is claimed.
Claims (10)
1. refrigeration or a heat pump, is provided with the first refrigeration or heat pump circuit, and described first refrigeration or heat pump circuit are at least
Depended on by compressor (11), the first condenser (21), the first reservoir (01), first throttle device (31), the first vaporizer (41)
Secondary serial communication forms, and the air vent of wherein said compressor (11) connects described first condenser (21), described compressor
(11) air entry connects described first vaporizer (41), it is characterised in that:
Be additionally provided with the second refrigeration or heat pump circuit, described second refrigeration or heat pump circuit at least meet following four condition it
One:
Condition A: described second refrigeration or heat pump circuit are at least by described compressor (11), the second heat exchanger, throttling arrangement, described
First vaporizer (41) is sequentially connected in series connection composition, and wherein, the air vent of described compressor (11) connects described second heat exchanger,
The air entry of described compressor (11) connects described first vaporizer (41)；Without described in described second refrigeration or heat pump circuit
First reservoir (01)；
Condition B: described second refrigeration or heat pump circuit are at least by described compressor (11), the second heat exchanger, throttling arrangement, described
First vaporizer (41) is sequentially connected in series connection composition, and wherein, the air vent of described compressor (11) connects described second heat exchanger,
The air entry of described compressor (11) connects described first vaporizer (41)；Containing described in described second refrigeration or heat pump circuit
First reservoir (01), but described first reservoir (01) not described second heat exchange in described second refrigeration or heat pump circuit
Between device and described throttling arrangement；
Condition C: described second refrigeration or heat pump circuit are at least by described compressor (11), described first condenser (21), throttling
Device, the 3rd heat exchanger are sequentially connected in series connection composition, and wherein, the air vent of described compressor (11) connects described first condenser
(21), the air entry of described compressor connects described 3rd heat exchanger；Without described the in described second refrigeration or heat pump circuit
One reservoir (01)；
Condition D: described second refrigeration or heat pump circuit are at least by described compressor (11), described first condenser (21), throttling
Device, the 3rd heat exchanger are sequentially connected in series connection composition, and wherein, the air vent of described compressor (11) connects described first condenser
(21), the 3rd heat exchanger described in the air entry UNICOM of described compressor；Containing described the in described second refrigeration or heat pump circuit
One reservoir (01), but described first reservoir (01) not described first condenser in described second refrigeration or heat pump circuit
(21) and between described throttling arrangement.
A kind of refrigeration the most according to claim 1 or heat pump, it is characterised in that:
In described condition A and described condition B, the most described first condenser of described second heat exchanger (21).
A kind of refrigeration the most according to claim 2 or heat pump, it is characterised in that:
In described condition C and described condition D, described 3rd the most described first vaporizer of heat exchanger (41).
A kind of refrigeration the most according to claim 3 or heat pump, it is characterised in that:
In described condition A and described condition C, described first reservoir (01) is passed through can be with the valve member (72) and described first of break-make
Vaporizer (41) connects.
A kind of refrigeration the most according to claim 3 or heat pump, it is characterised in that:
In described condition B and described condition D, described first reservoir (01) is positioned at the institute in described second refrigeration or heat pump circuit
State between throttling arrangement and described first vaporizer (41).
A kind of refrigeration the most according to claim 3 or heat pump, it is characterised in that:
In described condition B and described condition D, described first reservoir (01) is positioned at the institute in described second refrigeration or heat pump circuit
State between compressor (11) and described first condenser (21).
A kind of refrigeration the most according to claim 3 or heat pump, it is characterised in that:
In described second refrigeration or heat pump circuit, between described compressor (11) and described first condenser (21), also series connection sets
It is equipped with heat recovering heat exchanger (51).
A kind of refrigeration the most according to claim 7 or heat pump, it is characterised in that:
Described heat recovering heat exchanger (51) is the one in case tube heat exchanger, double-tube heat exchanger and plate type heat exchanger.
A kind of refrigeration the most according to claim 7 or heat pump, it is characterised in that:
In described second refrigeration or heat pump circuit, between described heat recovering heat exchanger (51) and described first condenser (11) also
It is arranged in series the second reservoir (02).
10. a Condensing units, comprises compressor, condenser and reservoir, is provided with supply opening and air entry, is provided with
First path, described first path is at least by described air entry, described compressor, described condenser, described reservoir, described confession
Liquid mouth is sequentially connected in series connection and is formed, it is characterised in that:
Being additionally provided with alternate path, described alternate path is at least by described air entry, described compressor, described condenser, described confession
Liquid mouth is sequentially connected in series connection composition；
Without described reservoir, or described alternate path contain described reservoir in described alternate path, but described liquid storage
Device is not between the described condenser and described supply opening of described alternate path.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610733848.4A CN106225280A (en) | 2016-08-25 | 2016-08-25 | A kind of refrigeration or heat pump and a kind of Condensing units |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610733848.4A CN106225280A (en) | 2016-08-25 | 2016-08-25 | A kind of refrigeration or heat pump and a kind of Condensing units |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106225280A true CN106225280A (en) | 2016-12-14 |
Family
ID=57554633
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610733848.4A Pending CN106225280A (en) | 2016-08-25 | 2016-08-25 | A kind of refrigeration or heat pump and a kind of Condensing units |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106225280A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110410976A (en) * | 2019-07-31 | 2019-11-05 | 广东美的暖通设备有限公司 | The control method of air-cooled heat pump unit and air-cooled heat pump unit |
| CN111065865A (en) * | 2017-12-04 | 2020-04-24 | 松下知识产权经营株式会社 | Refrigeration cycle device and method for driving refrigeration cycle device |
| CN111466435A (en) * | 2020-06-02 | 2020-07-31 | 烟台睿加节能科技有限公司 | Movable fruit and vegetable pressure difference precooling and temperature changing storage and preservation device and preservation method |
| CN112303950A (en) * | 2020-10-29 | 2021-02-02 | 珠海格力电器股份有限公司 | Heat exchange system and air conditioning equipment with same |
| CN112752935A (en) * | 2018-09-28 | 2021-05-04 | 三菱电机株式会社 | Refrigeration cycle device |
-
2016
- 2016-08-25 CN CN201610733848.4A patent/CN106225280A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111065865A (en) * | 2017-12-04 | 2020-04-24 | 松下知识产权经营株式会社 | Refrigeration cycle device and method for driving refrigeration cycle device |
| CN112752935A (en) * | 2018-09-28 | 2021-05-04 | 三菱电机株式会社 | Refrigeration cycle device |
| CN112752935B (en) * | 2018-09-28 | 2022-08-09 | 三菱电机株式会社 | Refrigeration cycle device |
| CN110410976A (en) * | 2019-07-31 | 2019-11-05 | 广东美的暖通设备有限公司 | The control method of air-cooled heat pump unit and air-cooled heat pump unit |
| CN111466435A (en) * | 2020-06-02 | 2020-07-31 | 烟台睿加节能科技有限公司 | Movable fruit and vegetable pressure difference precooling and temperature changing storage and preservation device and preservation method |
| CN112303950A (en) * | 2020-10-29 | 2021-02-02 | 珠海格力电器股份有限公司 | Heat exchange system and air conditioning equipment with same |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106642416B (en) | Air conditioning system, composite condenser and operation control method and device of air conditioning system | |
| CN106482376A (en) | Refrigeration or heat pump and its refrigerant circulation amount adjustment method | |
| CN106225280A (en) | A kind of refrigeration or heat pump and a kind of Condensing units | |
| CN109282401A (en) | Separate heat pipe air-conditioning and its control method | |
| CN100439809C (en) | Compensating system and compensating control method for compressor | |
| CN206683105U (en) | A kind of compound computer-room air conditioning system of multiple | |
| CN201401880Y (en) | Supermarket combined system integrating cooling, heating, food refrigeration and hot water supply | |
| CN202757346U (en) | Central air-conditioning and hot water all-in-one machine | |
| CN113446756A (en) | Four-pipe air source heat pump unit with variable-speed compressor | |
| CN104266417B (en) | Refrigeration operating method of multi-split air conditioner in high temperature environment | |
| CN109340960B (en) | Combined air conditioning system of machine room and control method thereof | |
| CN109357426B (en) | Combined air conditioning system for machine room and control method thereof | |
| CN208720535U (en) | A kind of manifold type high temperature space energy heat-pump hot-water unit | |
| CN206113384U (en) | Refrigeration or heat pump system | |
| CN103017410B (en) | A kind of heating-refrigerating heat-pipe heat-pump type combined cycle system | |
| CN210861760U (en) | Natural cooling refrigerating system | |
| CN209147487U (en) | A kind of low circumstance temperature frequency conversion Air Resource Heat Pump Unit | |
| CN204254925U (en) | Heat-exchange system and there is its air-conditioner | |
| CN101382354A (en) | Double- effective day/night high temperature water-water heat pump hot water unit | |
| CN101266074A (en) | Highly effective energy-saving environment-friendly type heat pump air-conditioner water heater | |
| CN103557633B (en) | A kind of air source low-temperature trilogy supply heat-pump hot-water unit and implementation method thereof | |
| CN215930175U (en) | Refrigerating system | |
| CN216048111U (en) | Double-source integrated air source heat pump unit with total heat recovery | |
| CN206113391U (en) | Cold chain heat recovery refrigerating system | |
| CN201034394Y (en) | Air-conditioning hot pump hot-water machine set |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20161214 |