CN107421207A - A kind of residual-heat used type refrigeration system - Google Patents
A kind of residual-heat used type refrigeration system Download PDFInfo
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- CN107421207A CN107421207A CN201710587713.6A CN201710587713A CN107421207A CN 107421207 A CN107421207 A CN 107421207A CN 201710587713 A CN201710587713 A CN 201710587713A CN 107421207 A CN107421207 A CN 107421207A
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- refrigerant
- outlet
- pressure sensor
- refrigeration system
- residual
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- 238000005057 refrigeration Methods 0.000 title claims abstract description 75
- 239000003507 refrigerant Substances 0.000 claims abstract description 132
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 56
- 238000012544 monitoring process Methods 0.000 claims description 19
- 230000008676 import Effects 0.000 claims description 18
- 239000007788 liquid Substances 0.000 claims description 14
- 239000003795 chemical substances by application Substances 0.000 claims description 6
- 238000001035 drying Methods 0.000 claims description 6
- 239000011521 glass Substances 0.000 claims description 6
- 238000001914 filtration Methods 0.000 claims description 4
- 238000009833 condensation Methods 0.000 claims 1
- 230000005494 condensation Effects 0.000 claims 1
- 239000002918 waste heat Substances 0.000 abstract description 4
- 239000000498 cooling water Substances 0.000 description 7
- 230000004308 accommodation Effects 0.000 description 6
- 238000007710 freezing Methods 0.000 description 3
- 230000008014 freezing Effects 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 210000004243 sweat Anatomy 0.000 description 1
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
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
- F25D11/02—Self-contained movable devices, e.g. domestic refrigerators with cooling compartments at different temperatures
- F25D11/022—Self-contained movable devices, e.g. domestic refrigerators with cooling compartments at different temperatures with two or more evaporators
-
- 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
- F25B41/40—Fluid line arrangements
-
- 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
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D19/00—Arrangement or mounting of refrigeration units with respect to devices or objects to be refrigerated, e.g. infrared detectors
- F25D19/04—Arrangement or mounting of refrigeration units with respect to devices or objects to be refrigerated, e.g. infrared detectors with more than one refrigeration unit
-
- 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
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D23/00—General constructional features
- F25D23/12—Arrangements of compartments additional to cooling compartments; Combinations of refrigerators with other equipment, e.g. stove
-
- 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
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D29/00—Arrangement or mounting of control or safety devices
- F25D29/005—Mounting of control devices
-
- 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
- F25B2600/00—Control issues
- F25B2600/25—Control of 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
- F25B2700/00—Sensing or detecting of parameters; Sensors therefor
- F25B2700/19—Pressures
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
The invention discloses a kind of residual-heat used type refrigeration system, it includes heat exchanging part and refrigerating part, refrigerant input channel and refrigerant output channel are separately installed with the first magnetic valve and first pressure sensor, switching channel is connected between refrigerant input channel and refrigerant output channel, second solenoid valve is installed on the switching channel, second pressure sensor is installed on the refrigeration pipe between the compressor and evaporator.The present invention is monitored by first pressure sensor and second pressure sensor to refrigerating part high-pressure side and low-pressure lateral pressure, to control the work of the fan of the first magnetic valve, second solenoid valve and condenser, and then in the case of refrigeration is ensured, waste heat is sufficiently utilized.
Description
Technical field
The present invention relates to a kind of refrigeration system, more particularly to a kind of residual-heat used type refrigeration system.
Background technology
Existing commercial refrigeration system and refrigerating system mainly freeze to refrigerating chamber and refrigerating chamber, the structure base of the two
This is identical, generally comprises compressor, condenser, evaporator and expansion valve, and they form closed system by pipeline, that is, freeze
In evaporator (heat sink) with low temperature and cooled object (refrigerating chamber or refrigerating chamber) heat exchange occurs for agent liquid (refrigerant),
The heat and gasification, caused low-pressure steam for absorbing cooled object are sucked by compressor, discharged after compression with HTHP,
The high temperature and high pressure gaseous refrigerant of compressor discharge enters condenser, and highly pressurised liquid, high pressure are condensed into after being cooled down by outdoor air
Throttled during the expanded valve of liquid flow, become the gas-fluid two-phase mixture of low-pressure low-temperature, into evaporator, liquid refrigerant therein
The sweat cooling in evaporator, caused low-pressure steam are sucked by compressor, so gone round and begun again again, constantly circulation.
Heat in above-mentioned closed system is directly discharged to outdoor, while causing the wasting of resources, is also brought to environment
Pollution.In the prior art, also have and similar refrigeration system and refrigerating system be connected with boiler, realize the report of UTILIZATION OF VESIDUAL HEAT IN,
Such as Application No. 200910099436.X Chinese invention patent discloses a kind of structure of double-compressor instant water heater, its
Including circulating pump, small storage tank, small storage tank one end is connected with water circulating pump, and cooling-water temperature sensor is arranged on small storage tank
At the center of end, hot water outlet is connected to small storage tank upper end, and cooling water inlet is connected to small storage tank lower end, two heat exchangers it is outer
It is connected among shell, one end is connected with being connected the other end above small water tank with circulating pump, two heat exchanger inside spins heat exchange copper
Pipe forms two high pressure-temperature loops with two compressors, evaporator, expansion valve, filter, fluid reservoir respectively.This structure exists
Say that double-compressor is used cooperatively with water heater to a certain extent.
But there is following defect in said structure：
Need the structure by two compressors to be transformed, the heat exchanger of the two is carried out intercommunication, spend improvement cost
Meanwhile the effect of double-compressor itself can also be influenceed by certain, if refrigeration system and refrigerating system for commercialization
For, loss caused by it is immeasurable.
Moreover, commercial refrigeration system and refrigerating system, mainly for the purpose of refrigeration, UTILIZATION OF VESIDUAL HEAT IN simply aids in, because
This, while UTILIZATION OF VESIDUAL HEAT IN, it is necessary to ensure refrigeration.
The content of the invention
For overcome the deficiencies in the prior art, it is an object of the invention to provide a kind of residual-heat used type refrigeration system, its
Can solve in the case of refrigeration is ensured, waste heat is sufficiently utilized.
The purpose of the present invention adopts the following technical scheme that realization：
A kind of residual-heat used type refrigeration system, it includes heat exchanging part and refrigerating part, and the heat exchanging part is provided with refrigeration
Agent entrance and refrigerant outlet, the refrigerating part includes reservoir, expansion valve, evaporator, compressor and condenser, described cold
The outlet of condenser is connected to the import of compressor, the condenser by refrigeration pipe through reservoir, expansion valve, evaporator successively
Import be connected by refrigerant output channel with refrigerant outlet, the outlet of the compressor by refrigerant input channel with
Refrigerant inlet connects, and the refrigerant input channel and refrigerant output channel are separately installed with the first magnetic valve and the first pressure
Force snesor, switching channel is connected between the refrigerant input channel and refrigerant output channel, the switching channel
One end is connected on the refrigerant input channel between the first magnetic valve and compressor, and the other end of the switching channel is connected to
On refrigerant output channel between first pressure sensor and refrigerant outlet, the second electromagnetism is installed on the switching channel
Valve, second pressure sensor is installed on the refrigeration pipe between the compressor and evaporator；
When the pressure value of first pressure Sensor monitoring is less than the first preset upper limit value, and, second pressure sensor prison
When the pressure value of survey is more than the first preset lower limit value, following operate is performed：
The first magnetic valve and shut-off second solenoid valve are opened, meanwhile, the fan of condenser is closed；
When the pressure value of first pressure Sensor monitoring is more than the first preset upper limit value, or/and, second pressure sensor
When the pressure value of monitoring is less than the first preset lower limit value, the one or more of following operation is performed：
The first magnetic valve is opened, while opens second solenoid valve；
Open the fan of condenser；
When the pressure value of first pressure Sensor monitoring is more than the second preset upper limit value, or/and, second pressure sensor
When the pressure value of monitoring is less than the second preset lower limit value, following operate is performed：
Turn off the first magnetic valve and open second solenoid valve, meanwhile, the fan of condenser is in opening.
Further, device for drying and filtering, the 3rd electromagnetism are installed on the refrigeration pipe between the reservoir and expansion valve
Valve and liquid-sighting glass.
Further, gas-liquid separator and return-air mistake are also equipped with the refrigeration pipe between the evaporator and compressor
Filter, the import of the gas-liquid separator are connected to the outlet of evaporator, and the second pressure sensor is located at compressor and returned
Between air filter.
Further, it is connected with oil eliminator on the refrigerant input channel between the compressor and switching channel.
Further, the refrigerating part has two, respectively refrigerating system and refrigeration system；The heat exchanging part is provided with
Two refrigerant inlets and two refrigerant outlets, wherein, two refrigerant inlets are respectively the first refrigerant inlet and second
Refrigerant inlet, two refrigerant outlets are respectively the first refrigerant outlet for being connected with the first refrigerant inlet and with second
The second refrigerant outlet of refrigerant inlet connection, first refrigerant inlet and the first refrigerant outlet are respectively with refrigeration
The refrigerant input channel of system connects with refrigerant output channel, second refrigerant entrance and second refrigerant outlet difference
Connected with the refrigerant input channel and refrigerant output channel of refrigeration system.
Further, the heat exchanging part includes attemperater, the first refrigerant inlet, the first refrigerant outlet, second
Refrigerant inlet and second refrigerant outlet are arranged on attemperater.
Further, the attemperater is additionally provided with cooling water inlet and hot water outlet, the hot water outlet and outside
Water heater is connected.
Further, the heat exchanging part includes attemperater and heat exchanger, and the attemperater is provided with recirculated water and entered
Mouth and circulating water outlet, the heat exchanger are provided with water inlet and delivery port, and the circulating water outlet connects with water inlet, described
Circulating water intake connects with delivery port, first refrigerant inlet, the first refrigerant outlet, second refrigerant entrance and second
Refrigerant outlet is arranged on heat exchanger.
Further, it is connected with circulating pump on the pipeline between the circulating water intake and delivery port.
Further, the attemperater is additionally provided with cooling water inlet and hot water outlet, the hot water outlet and outside
Water heater is connected.
Compared with prior art, the beneficial effects of the present invention are：
The present invention controls the break-make of magnetic valve and electric fan by pressure sensor, and then ensures at any time with refrigeration
Based on, heat exchange is just carried out in the case of waste heat affluence so that heat is fully used.
Brief description of the drawings
Fig. 1 is the structured flowchart of residual-heat used type refrigeration system embodiment one of the present invention；
Fig. 2 is the structured flowchart of residual-heat used type refrigeration system embodiment two of the present invention.
In figure：10th, attemperater；101st, hot water outlet；102nd, the first refrigerant outlet；103rd, the first refrigerant inlet；
104th, second refrigerant exports；105th, second refrigerant import；106th, cooling water inlet；107th, circulating water outlet；108th, recirculated water
Import；
20th, refrigerating system；201st, the first compressor；202nd, the first oil eliminator；203rd, the first refrigerant input channel；
204th, the first magnetic valve；205th, the first refrigerant output channel；206th, first pressure sensor；207th, the first switching channel；
208th, second solenoid valve；209th, the first condenser；210th, the first reservoir；211st, the first device for drying and filtering；212nd, the 3rd electromagnetism
Valve；213rd, the first liquid-sighting glass；214th, the first expansion valve；215th, the first evaporator；216th, the first gas-liquid separator；217th, first time
Air filter；218th, second pressure sensor；
30th, refrigeration system；301st, the second compressor；302nd, the second oil eliminator；303rd, second refrigerant input channel；
304th, the 4th magnetic valve；305th, second refrigerant output channel；306th, the 3rd pressure sensor；307th, the second switching channel；
308th, the 5th magnetic valve；309th, the second condenser；310th, the second reservoir；311st, the second device for drying and filtering；312nd, the 6th electromagnetism
Valve；313rd, the second liquid-sighting glass；314th, the second expansion valve；315th, the second evaporator；316th, the second gas-liquid separator；317th, second time
Air filter；318th, the 4th pressure sensor；
40th, water heater；50th, heat exchanger；60th, circulating pump.
Embodiment
Below, with reference to accompanying drawing and embodiment, the present invention is described further, it is necessary to which explanation is, not
Under the premise of afoul, new implementation can be formed between various embodiments described below or between each technical characteristic in any combination
Example.
Embodiment one
A kind of residual-heat used type refrigeration system, refer to shown in Fig. 1, and it includes heat exchanging part and refrigerating part, wherein making
Cold part is made up of refrigerating system 20 and refrigeration system 30.Heat exchanging part includes attemperater 10 and water heater 40, attemperater
10 are used for heat exchange, and attemperater 10 is provided with cooling water inlet 106 and hot water outlet 101, wherein, cooling water inlet 106 be used for
Outside cold water such as tap connects, and hot water outlet 101 is used to caused hot water being sent in water heater 40 to use.It is being incubated
Two refrigerant accommodation spaces are provided with water tank 10, each refrigerant accommodation space is respectively arranged with refrigerant inlet and refrigeration
Agent exports, wherein, the refrigerant inlet and refrigerant outlet being connected with refrigerating system 20 are labeled as the first refrigerant inlet 103
With the first refrigerant outlet 102；The refrigerant inlet and refrigerant outlet being connected with refrigeration system 30 are labeled as the second refrigeration
Agent import 105 and second refrigerant outlet 104.
Refrigerating system 20 mainly includes the first reservoir 210, the first expansion valve 214, the compression of the first evaporator 215, first
The condenser 209 of machine 201 and first, the outlet of the first condenser 209 is by refrigeration pipe successively through the first reservoir 210, first
Expansion valve 214, the first evaporator 215 are connected to the import of the first compressor 201, and the import of the first condenser 209 passes through first
Refrigerant output channel 205 is connected with the first refrigerant outlet 102, and the outlet of the first compressor 201 is defeated by the first refrigerant
Enter pipeline 203 to be connected with the first refrigerant inlet 103, the first refrigerant input channel 203 and the first refrigerant output channel 205
It is separately installed with the first magnetic valve 204 and first pressure sensor 206, the first refrigerant input channel 203 and the first refrigerant
The first switching channel 207 is connected between output channel 205, one end of the first switching channel 207 is connected to the first magnetic valve 204
And on first the first refrigerant input channel 203 between compressor 201, the other end of the first switching channel 207 is connected to
On the first refrigerant output channel 205 between one pressure sensor 206 and the first refrigerant outlet 102, the first switching channel
Second solenoid valve 208 is installed on 207, is provided with the refrigeration pipe between the first compressor 201 and the first evaporator 215
Two pressure sensors 218.
First pressure sensor 206 and second pressure sensor 218 are respectively to the high-pressure side of refrigerating system 20 and low-pressure side
Pressure is monitored, and is realized according to following three kinds of situations to the first magnetic valve 204, the condenser 209 of second solenoid valve 208 and first
Fan be controlled：
The first situation：When the pressure value (high-pressure side) that first pressure sensor 206 monitors is less than the first preset upper limit value
And the pressure value (low-pressure side) that second pressure sensor 218 monitors, when being more than the first preset lower limit value, refrigerating system is in normally
Operating in, can by partial heat by heat exchange method carry out hot water heating, now, can open the first magnetic valve 204, shut-off
Second solenoid valve 208, meanwhile, the fan of the first condenser 209 closes the fan of the first condenser 209 also without unlatching.
Second case：When the pressure value that first pressure sensor 206 monitors is more than the first preset upper limit value, or/and,
When the pressure value that second pressure sensor 218 monitors is less than the first preset lower limit value, then it represents that refrigerating system 20 can be at freezing
State, but its refrigeration does not reach the temperature of setting, therefore, the first preset upper limit value and the first preset lower limit value and refrigeration
Temperature in system is related, is manually set as the case may be.At this time, it may be necessary to open the first magnetic valve 204 and open the
Two magnetic valves 208, or/and, the fan of the first condenser 209 of unlatching.
The third situation：When the pressure value that first pressure sensor 206 monitors is more than the second preset upper limit value, or/and,
When the pressure value that second pressure sensor 218 monitors is less than the second preset lower limit value, then representing refrigerating system 20 can not be just
Often refrigeration, at this time, it may be necessary to which heat exchange section is closed so that first pressure sensor 206 or/and second pressure sensor
The pressure value of 218 monitorings quickly recovers to normal condition, at this time, it may be necessary to：Turn off the first magnetic valve 204, open second solenoid valve
208, meanwhile, the fan of the first condenser 209 of unlatching.
From the foregoing, it will be observed that the priority of above-mentioned three kinds of situations increases according to this, as long as there is the third situation, while have again
Second case, then perform the control operation of the third situation.
Meanwhile it is sequentially installed with the first drying on the refrigeration pipe between the first reservoir 210 and the first expansion valve 214
Filter 211, the 3rd magnetic valve 212 and the first liquid-sighting glass 213；Refrigeration between first evaporator 215 and the first compressor 201
The first gas-liquid separator 216 and the first return-air filter 217 are also equipped with pipeline, the import of the first gas-liquid separator 216 connects
The outlet of the first evaporator 215 is connected to, second pressure sensor 218 is located at the first compressor 201 and the first return-air filter 217
Between.The first oil is connected with the first refrigerant input channel 203 between first compressor 201 and the first switching channel 207
Separator 202.
The utility model patent of operation principle and the Publication No. 204806736 of applicant's application inside refrigerating system 20
In refrigerating system operation principle it is identical, repeat no more here.
Similarly, refrigeration system 30 mainly includes the second reservoir 310, the second expansion valve 314, the second evaporator 315, the
Two compressors 301 and the second condenser 309, the outlet of the second condenser 309 is by refrigeration pipe successively through the second reservoir
310th, the second expansion valve 314, the second evaporator 315 are connected to the import of the second compressor 301, the import of the second condenser 309
It is connected by second refrigerant output channel 305 with second refrigerant outlet 104, the outlet of the second compressor 301 passes through second
Refrigerant input channel 303 is connected with second refrigerant import 105, and second refrigerant input channel 303 and second refrigerant are defeated
Go out pipeline 305 and be separately installed with the 4th magnetic valve 304 and the 3rd pressure sensor 306, second refrigerant input channel 303 and
The second switching channel 307 is connected between two refrigerant output channels 305, one end of the second switching channel 307 is connected to the 4th
On second refrigerant input channel 303 between the compressor 301 of magnetic valve 304 and second, the other end of the second switching channel 307
It is connected on the second refrigerant output channel 305 between the 3rd pressure sensor 306 and second refrigerant outlet 104, second
5th magnetic valve 308 is installed, on the refrigeration pipe between the second compressor 301 and the second evaporator 315 on switching channel 307
4th pressure sensor 318 is installed.
3rd pressure sensor 306 and the 4th pressure sensor 318 are respectively to the high-pressure side of refrigeration system 30 and low-pressure side
Pressure is monitored, and is realized according to following three kinds of situations to the 4th magnetic valve 304, the 5th magnetic valve 308 and the second condenser 309
Fan be controlled：
Second case：When the pressure value (high-pressure side) of the 3rd pressure sensor 306 monitoring is less than the first preset upper limit value
And the 4th pressure value (low-pressure side) for monitoring of pressure sensor 318 when being more than the first preset lower limit value, refrigeration system is in normally
Operating in, can by partial heat by heat exchange method carry out hot water heating, now, can open the 4th magnetic valve 304, shut-off
5th magnetic valve 308, meanwhile, the fan of the second condenser 309 closes the fan of the second condenser 309 also without unlatching.
Second case：When the pressure value of the 3rd pressure sensor 306 monitoring is more than the first preset upper limit value, or/and,
When the pressure value of 4th pressure sensor 318 monitoring is less than the first preset lower limit value, then it represents that refrigeration system 30 can be at freezing
State, but its refrigeration does not reach the temperature of setting, therefore, the first preset upper limit value and the first preset lower limit value and freezing
Temperature in system is related, is manually set as the case may be.At this time, it may be necessary to open the 4th magnetic valve 304 and open the
Five magnetic valves 308, or/and, the fan of the second condenser 309 of unlatching.
The third situation：When the pressure value of the 3rd pressure sensor 306 monitoring is more than the second preset upper limit value, or/and,
When the pressure value of 4th pressure sensor 318 monitoring is less than the second preset lower limit value, then representing refrigeration system 30 can not be just
Often refrigeration, at this time, it may be necessary to which heat exchange section is closed so that the 3rd pressure sensor 306 or/and the 4th pressure sensor
The pressure value of 318 monitorings quickly recovers to normal condition, at this time, it may be necessary to：Turn off the 4th magnetic valve 304, open the 5th magnetic valve
308, meanwhile, the fan of the second condenser 309 of unlatching.
From the foregoing, it will be observed that the priority of above-mentioned three kinds of situations increases according to this, as long as there is the third situation, while have again
Second case, then perform the control operation of the third situation.
Meanwhile it is sequentially installed with the second drying on the refrigeration pipe between the second reservoir 310 and the second expansion valve 314
Filter 311, the 6th magnetic valve 312 and the second liquid-sighting glass 313；Refrigeration between second evaporator 315 and the second compressor 301
The second gas-liquid separator 316 and the second return-air filter 317 are also equipped with pipeline, the import of the second gas-liquid separator 316 connects
The outlet of the second evaporator 315 is connected to, the 4th pressure sensor 318 is located at the second compressor 301 and the second return-air filter 317
Between.The second oil is connected with second refrigerant input channel 303 between second compressor 301 and the second switching channel 307
Separator 302.
Operation principle inside refrigeration system 30 and the refrigeration system in the utility model patent of Publication No. 204806736
Operation principle it is identical, repeat no more here.
Embodiment two
Embodiment two separates heat exchange device from attemperater on the basis of embodiment one, as shown in Fig. 2
Increase heat exchanger 50 between attemperater 10 and refrigerating system 20 and refrigeration system 30, the heat exchanger 50 is provided with two refrigeration
Agent accommodation space, relative to the two refrigerant accommodation spaces set on a kind of attemperater 10 of embodiment, equally, heat exchanger 50
Two refrigerant accommodation spaces of upper setting are provided with refrigerant outlet and refrigerant inlet.Meanwhile set on the heat exchanger 50
Water inlet and delivery port are equipped with, is connected respectively with the circulating water outlet 107 on attemperater 10 and circulating water intake 108, is used
In by water colder in attemperater 10 by being heated in circulating water outlet 107, water inlet inflow heat exchanger 50, Ran Houtong
Cross the circulating pump 60 between delivery port, delivery port and circulating water intake 108 on the pipeline of connection, circulating water intake 108 flows back to
Into attemperater 10.
The present invention is to form a heat-exchange insulating water tank by setting two refrigerant accommodation spaces to existing attemperater,
Then the high temperature and high pressure gas that compressor in refrigeration system and refrigerating system exports are housed by two refrigerants of pipeline and this
Space connection can be achieved the waste heat of the two and be used for heat-exchange insulating water tank, save cost, at the same to original refrigeration system with
Refrigerating system has no effect, reliable, safety；Refrigeration system and refrigerating system Integral design can be easily installed simultaneously
And maintenance.
Above-mentioned embodiment is only the preferred embodiment of the present invention, it is impossible to the scope of protection of the invention is limited with this,
The change and replacement for any unsubstantiality that those skilled in the art is done on the basis of the present invention belong to institute of the present invention
Claimed scope.
Claims (10)
1. a kind of residual-heat used type refrigeration system, it includes heat exchanging part and refrigerating part, and the heat exchanging part is provided with refrigerant
Entrance and refrigerant outlet, the refrigerating part include reservoir, expansion valve, evaporator, compressor and condenser, the condensation
The outlet of device is connected to the import of compressor by refrigeration pipe through reservoir, expansion valve, evaporator successively, the condenser
Import is connected by refrigerant output channel with refrigerant outlet, and the outlet of the compressor passes through refrigerant input channel and system
Cryogen import connects, it is characterised in that：The refrigerant input channel and refrigerant output channel are separately installed with the first electromagnetism
Valve and first pressure sensor, switching channel is connected between the refrigerant input channel and refrigerant output channel, it is described
One end of switching channel is connected on the refrigerant input channel between the first magnetic valve and compressor, the switching channel it is another
One end is connected on the refrigerant output channel between first pressure sensor and refrigerant outlet, is installed on the switching channel
There is second solenoid valve, second pressure sensor is installed on the refrigeration pipe between the compressor and evaporator；
When the pressure value of first pressure Sensor monitoring is less than the first preset upper limit value, and, second pressure Sensor monitoring
When pressure value is more than the first preset lower limit value, following operate is performed：
The first magnetic valve and shut-off second solenoid valve are opened, meanwhile, the fan of condenser is closed；
When the pressure value of first pressure Sensor monitoring is more than the first preset upper limit value, or/and, second pressure Sensor monitoring
Pressure value when being less than the first preset lower limit value, perform the one or more of following operation：
The first magnetic valve is opened, while opens second solenoid valve；
Open the fan of condenser；
When the pressure value of first pressure Sensor monitoring is more than the second preset upper limit value, or/and, second pressure Sensor monitoring
Pressure value when being less than the second preset lower limit value, perform following operate：
Turn off the first magnetic valve and open second solenoid valve, meanwhile, the fan of condenser is in opening.
2. residual-heat used type refrigeration system as claimed in claim 1, it is characterised in that：Between the reservoir and expansion valve
Device for drying and filtering, the 3rd magnetic valve and liquid-sighting glass are installed on refrigeration pipe.
3. residual-heat used type refrigeration system as claimed in claim 1, it is characterised in that：Between the evaporator and compressor
Gas-liquid separator and return-air filter are also equipped with refrigeration pipe, the import of the gas-liquid separator is connected to going out for evaporator
Mouthful, the second pressure sensor is between compressor and return-air filter.
4. residual-heat used type refrigeration system as claimed in claim 1, it is characterised in that：Between the compressor and switching channel
Refrigerant input channel on be connected with oil eliminator.
5. the residual-heat used type refrigeration system as described in claim any one of 1-4, it is characterised in that：The refrigerating part has two
It is individual, respectively refrigerating system and refrigeration system；The heat exchanging part is provided with two refrigerant inlets and two refrigerant outlets, its
In, two refrigerant inlets are respectively the first refrigerant inlet and second refrigerant entrance, two refrigerant outlets be respectively with
First refrigerant outlet of the first refrigerant inlet connection and the second refrigerant outlet connected with second refrigerant entrance, institute
State the refrigerant input channel and refrigerant efferent duct of the first refrigerant inlet and the first refrigerant outlet respectively with refrigerating system
Road connects, and the second refrigerant entrance and second refrigerant export the refrigerant input channel and refrigeration with refrigeration system respectively
Agent output channel connects.
6. residual-heat used type refrigeration system as claimed in claim 5, it is characterised in that：The heat exchanging part includes attemperater,
First refrigerant inlet, the first refrigerant outlet, second refrigerant entrance and second refrigerant outlet are arranged on attemperater.
7. residual-heat used type refrigeration system as claimed in claim 6, it is characterised in that：The attemperater is additionally provided with cold water
Import and hot water outlet, the hot water outlet are connected with the water heater of outside.
8. residual-heat used type refrigeration system as claimed in claim 5, it is characterised in that：The heat exchanging part includes attemperater
And heat exchanger, the attemperater are provided with circulating water intake and circulating water outlet, the heat exchanger is provided with water inlet and gone out
The mouth of a river, the circulating water outlet connect with water inlet, and the circulating water intake connects with delivery port, and first refrigerant enters
Mouth, the first refrigerant outlet, second refrigerant entrance and second refrigerant outlet are arranged on heat exchanger.
9. residual-heat used type refrigeration system as claimed in claim 8, it is characterised in that：The circulating water intake and delivery port it
Between pipeline on be connected with circulating pump.
10. residual-heat used type refrigeration system as claimed in claim 8, it is characterised in that：The attemperater is additionally provided with cold
Water inlet and hot water outlet, the hot water outlet are connected with the water heater of outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710587713.6A CN107421207A (en) | 2017-07-18 | 2017-07-18 | A kind of residual-heat used type refrigeration system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710587713.6A CN107421207A (en) | 2017-07-18 | 2017-07-18 | A kind of residual-heat used type refrigeration system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107421207A true CN107421207A (en) | 2017-12-01 |
Family
ID=60430006
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710587713.6A Pending CN107421207A (en) | 2017-07-18 | 2017-07-18 | A kind of residual-heat used type refrigeration system |
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| Country | Link |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111442578A (en) * | 2020-04-02 | 2020-07-24 | 北京力方圆制冷设备有限公司 | Refrigeration cycle system and refrigeration method |
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| CN201779921U (en) * | 2010-09-08 | 2011-03-30 | 邝细辉 | Multifunctional switch system of air conditioner and heat pump water heater |
| CN202109695U (en) * | 2011-04-29 | 2012-01-11 | 丛晓春 | Water-cooling or wind water cooling double-purpose type refrigeration system |
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