CN109631389A - A kind of heat pump low temperature anti-freeze system - Google Patents
A kind of heat pump low temperature anti-freeze system Download PDFInfo
- Publication number
- CN109631389A CN109631389A CN201910045968.9A CN201910045968A CN109631389A CN 109631389 A CN109631389 A CN 109631389A CN 201910045968 A CN201910045968 A CN 201910045968A CN 109631389 A CN109631389 A CN 109631389A
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- CN
- China
- Prior art keywords
- water
- indoor
- solenoid valve
- condenser
- valve
- 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
- 108010053481 Antifreeze Proteins Proteins 0.000 title claims abstract description 12
- 230000002528 anti-freeze Effects 0.000 title claims abstract description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 102
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims abstract description 16
- 229910052731 fluorine Inorganic materials 0.000 claims abstract description 16
- 239000011737 fluorine Substances 0.000 claims abstract description 16
- 238000010438 heat treatment Methods 0.000 claims abstract description 16
- 239000007788 liquid Substances 0.000 claims abstract description 14
- 239000013589 supplement Substances 0.000 claims description 5
- 239000003507 refrigerant Substances 0.000 description 7
- 230000008014 freezing Effects 0.000 description 3
- 238000007710 freezing Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000009172 bursting Effects 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 1
- 230000003020 moisturizing effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
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
- 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
- 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
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
-
- 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
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Other Air-Conditioning Systems (AREA)
Abstract
A kind of heat pump low temperature anti-freeze system, the indoor host computer of outdoor host computer and water system including fluorine system system, the outdoor host computer includes four-way reversing valve, compressor, gas-liquid separator, evaporator, throttling set, condenser, automatic admission valve, outdoor solenoid valve, the four-way reversing valve is separately connected compressor, gas-liquid separator, evaporator, condenser, the compressor connects gas-liquid separator, the evaporator connects condenser by throttling set, the indoor unit includes sequentially connected check-valves, automatic water-replenishing device, heating plant, water circulating pump, indoor solenoid valve；The water outlet of the condenser is separately connected check-valves and automatic admission valve, when the automatic admission valve low pressure can auto-admission, when high pressure closes；The water inlet end of the condenser is separately connected indoor solenoid valve and connects with outdoor solenoid valve, and the interior solenoid valve powers on disconnection, power-failure close, and the outdoor solenoid valve powers on closure, and power-off disconnects.
Description
Technical field
The present invention relates to air-conditioning technical fields, and in particular to a kind of heat pump low temperature anti-freeze system.
Background technique
As heat pump system is gradually popularized, in unit the measure of water route anti-freeze at present can only hand-guided, method quite falls
It is unreliable afterwards.Such as: -25 DEG C of outside, unit midnight power off suddenly, manually drain and are just easy to because draining not in time, and
Water route is caused to freeze, the direct bursting by freezing of system, final entire unit is scrapped and cannot be opened, and heavy economic losses is caused.Principle is as follows:
Heat pump system fluorine system system operation heating principle:
After the expanded mechanism reducing pressure by regulating flow of low-temperature low-pressure refrigerant in fluorine system system, inhaled into being evaporated in evaporating heat exchanger
Heat absorbs a large amount of heat Q2 from air；Refrigerant after evaporation endothermic enters compressor in a gaseous form, after compressing,
Becoming the refrigerant of high temperature and pressure, (heat contained in refrigerant at this time is divided into two parts: a part is absorbed from air
Heat Q2, a part is the heat Q1 that is converted to when compressing refrigerant of electric energy inputted in compressor)；By compressed height
Warm high-pressure refrigerant enters condensate and heat exchanger, its heat content (Q1+Q2) is released into cold water (this in heat exchanger
Water is that the cold water come is recycled from interior machine), cold water is directly entered interior after being heated, for users to use, the refrigerant after heat release
Enter expansion mechanism in liquid form, reducing pressure by regulating flow ... is so uninterruptedly recycled.
Heat pump system water system operation heating principle:
The cold water come out from interior is divided into two kinds: heating is that purpose unit is recirculated water, is originally for the purpose of domestic water
Water.The cold water come out from interior enters in the condenser that outdoor unit fluorine system is united, and exchanges heat with the fluorine of condenser high temperature, water quilt
Indoor is pumped to after heating.To bring heat into indoor for users to use.
Unit operates normally water system coolant-temperature gage and is always more than 30 DEG C；And when unit standby mode, when water temperature is lower than 5 DEG C
When, unit automatic running prevents water from freezing.
When unit has a power failure, set state is not controlled, and the water in condenser can decline rapidly because outdoor temperature is low, such as
Fruit is not excluded for, and water is expanded because of icing, and so as to cause heat exchanger and pipeline burst, water can enter fluorine system and unite.When unit again on
When electricity operation, water can be inhaled into fluorine system system, and unit is caused directly to be scrapped.But the work of power-off unit draining at present is still
It is that manual control carries out, this just easily causes draining not in time, system bursting by freezing.Present such accident of cold district is sent out often
It is raw.Cause larger economic loss.
Summary of the invention
To solve the above-mentioned problems, the present invention provides a kind of heat pump low temperature anti-freeze systems:
A kind of heat pump low temperature anti-freeze system, the indoor host computer of outdoor host computer and water system including fluorine system system, the room
Outdoor main unit includes four-way reversing valve, compressor, gas-liquid separator, evaporator, throttling set, condenser, automatic admission valve, outdoor
Solenoid valve, the four-way reversing valve are separately connected compressor, gas-liquid separator, evaporator, condenser, and the compressor connects gas
Liquid/gas separator, the evaporator connect condenser by throttling set, and the indoor unit includes sequentially connected check-valves, automatic
Water replanishing device, heating plant, water circulating pump, indoor solenoid valve；
The condenser is water fluorine heat exchange type, and the condenser is equipped with water outlet and water inlet end, institute close to indoor unit side
The water outlet for stating condenser is separately connected check-valves and automatic admission valve, when the automatic admission valve low pressure can auto-admission, it is high
It is closed when pressure；
The water inlet end of the condenser is separately connected indoor solenoid valve and connects with outdoor solenoid valve, on the interior solenoid valve
Electrically disconnected, power-failure close, the outdoor solenoid valve powers on closure, and power-off disconnects；
When normal operation or standby mode, outdoor solenoid valve closure, automatic admission valve is closed, and indoor solenoid valve disconnects,
Water circulating pump pumps out cold water from interior, enters condenser heating through indoor solenoid valve, becomes hot water, hot water flow through check-valves into
Enter heating plant, become cold water after indoor is delivered heat in heating plant, is again introduced into water circulating pump and is recycled；
When unit powers off, when being unable to run, outdoor solenoid valve power down is disconnected for fluorine system system and water system, and water is from outdoor solenoid valve
Place's flow direction is outdoor, and at automatic admission valve, water level reduces, and automatically into gas, flows out the water in condenser more logical
Freely, the indoor solenoid valve and check-valves being closed can prevent the water of indoor from flowing out, and reduce water waste and moisturizing time；
When unit powers on again, indoor solenoid valve powers on disconnection, and outdoor solenoid valve powers on closure, and water pump is by indoor water
It pumping into condenser, indoor water system pressure reduces, and automatic water-replenishing device starting automatic water supplement, water system pressure gradually rises,
Gas is discharged from automatic admission valve, and unit automatically replies operation.
Preferably, the condenser is plate heat exchanger, to have, heat exchange efficiency is high, heat loss is small, compact-sized light
Ingeniously, the features such as occupied area is small, be widely used, long service life.
Preferably, the automatic admission valve is installed on eminence, i.e. indoor is higher than outside, then automatic exhaust steam valve is mounted on
Indoor, before check-valves；Indoor side is lower than being outside, then mounted in outdoor water outlet highest point.
The invention has the following beneficial effects: compared with prior art, Auto-drainage anti-freeze provided by this patent and
The reliability that automatic water supplement is vented function of resuming operation is significantly larger than hand-guided.For sudden power failure, which has very well
Protective effect, prevent draining not in time to unit bring lose.
Detailed description of the invention
Fig. 1 is the schematic illustration of embodiment.
1, four-way reversing valve；2, compressor；3, gas-liquid separator；4, evaporator；5, throttling set；6, condenser；7, certainly
Dynamic intake valve；8, outdoor solenoid valve；9, check-valves；10, water circulating pump；11, indoor solenoid valve；12, heating plant；13, automatic
Water replanishing device.
Specific embodiment
1 invention is further explained with embodiment with reference to the accompanying drawing.
A kind of heat pump low temperature anti-freeze system, the indoor host computer of outdoor host computer and water system including fluorine system system, the room
Outdoor main unit includes four-way reversing valve 1, compressor 2, gas-liquid separator 3, evaporator 4, throttling set 5, condenser 6, auto-admission
Valve 7, outdoor solenoid valve 8, the four-way reversing valve 1 are separately connected compressor 2, gas-liquid separator 3, evaporator 4, condenser 6, institute
It states compressor 2 and connects gas-liquid separator 3, the evaporator 4 connects condenser 6 by throttling set 5.The indoor unit include according to
Check-valves 9, automatic water-replenishing device 13, heating plant 12, water circulating pump 10, the indoor solenoid valve 11 of secondary connection.
The condenser 6 is water fluorine heat exchange type, and the condenser 6 is equipped with water outlet and water inlet end close to indoor unit side,
The water outlet of the condenser 6 is separately connected check-valves 9 and automatic admission valve 7, when 7 low pressure of automatic admission valve can automatically into
Gas, when high pressure, are closed.
The condenser 6 is plate heat exchanger, to have, heat exchange efficiency is high, heat loss is small, advantages of compact and light structure, land occupation
The features such as area is small, be widely used, long service life.The water inlet end of the condenser 6 is separately connected indoor solenoid valve 11 and room
Outer solenoid valve 8 connects, and electrically disconnected, power-failure close on the interior solenoid valve 11, the outdoor solenoid valve 8 powers on closure, powers off
It disconnects.
When normal operation or standby mode, outdoor solenoid valve 8 is closed, and automatic admission valve 7 is closed, and indoor solenoid valve 11 is disconnected
It opens, water circulating pump 10 pumps out cold water from interior, enters condenser 6 through indoor solenoid valve 11 and heats, becomes hot water, hot water flows through
Check-valves 9 enters heating plant 12, becomes cold water after indoor is delivered heat in heating plant 12, is again introduced into circulation
Water pump 10 is recycled.The automatic admission valve 7 is installed on eminence, i.e. indoor is higher than outside, then automatic exhaust steam valve is installed
Side indoors, 9 front of check-valves；Indoor side is lower than being outside, then mounted in outdoor water outlet highest point.
When unit powers off, when being unable to run, 8 power down of outdoor solenoid valve is disconnected for fluorine system system and water system, and water is from outdoor electromagnetism
Outdoor is flowed at valve 8, and at automatic admission valve 7, water level reduces, and automatically into gas, flows out the water in condenser 6 more
Add unobstructed, and the indoor solenoid valve 11 and check-valves 9 being closed can prevent the water of indoor from flowing out, and reduce water waste and benefit
The water time.
Electrically disconnected on indoor solenoid valve 11 when unit powers on again, outdoor solenoid valve 8 powers on closure, and water pump will be indoor
Water pump into condenser 6, indoor water system pressure reduces, the starting automatic water supplement of automatic water-replenishing device 13, water system pressure by
Edge up height, and gas is discharged from automatic admission valve 7, and unit automatically replies operation.
Obviously, the above embodiment of the present invention is intended to be merely illustrative of the present example, and not to the present invention
Embodiment restriction.For those of ordinary skill in the art, it can also make on the basis of the above description
Other various forms of variations or variation.There is no need and unable to give poor example to all embodiments.And these belong to this
The connotation changes and variations that derived from of invention still fall within protection scope of the present invention.
Claims (3)
1. a kind of heat pump low temperature anti-freeze system, the indoor host computer of outdoor host computer and water system including fluorine system system, feature exist
In: the outdoor host computer includes four-way reversing valve (1), compressor (2), gas-liquid separator (3), evaporator (4), throttling set
(5), condenser (6), automatic admission valve (7), outdoor solenoid valve (8), the four-way reversing valve (1) be separately connected compressor (2),
Gas-liquid separator (3), evaporator (4), condenser (6), the compressor (2) connect gas-liquid separator (3), the evaporator
(4) by throttling set (5) connection condenser (6), the indoor unit includes sequentially connected check-valves (9), automatic water supplement dress
Set (13), heating plant (12), water circulating pump (10), indoor solenoid valve (11)；
The condenser (6) is water fluorine heat exchange type, and the condenser (6) is equipped with water outlet and water inlet end close to indoor unit side,
The water outlet of the condenser (6) is separately connected check-valves (9) and automatic admission valve (7), when automatic admission valve (7) low pressure
Can auto-admission, when high pressure closes；
The water inlet end of the condenser (6) is separately connected indoor solenoid valve (11) and outdoor solenoid valve (8) connection, the indoor electric
Electrically disconnected, power-failure close on magnet valve (11), the outdoor solenoid valve (8) power on closure, and power-off disconnects；
When normal operation or standby mode, outdoor solenoid valve (8) closure, automatic admission valve (7) closure, indoor solenoid valve (11)
It disconnecting, water circulating pump (10) pumps out cold water from interior, and it is heated through indoor solenoid valve (11) into condenser (6), becomes hot water,
Hot water flows through check-valves (9) into heating plant (12), becomes cold after indoor is delivered heat in heating plant (12)
Water is again introduced into water circulating pump (10) and is recycled；
When unit powers off, when being unable to run, outdoor solenoid valve (8) power down is disconnected for fluorine system system and water system, and water is from outdoor solenoid valve
(8) outdoor is flowed at, and at automatic admission valve (7), water level reduces, and automatically into gas, makes the water flow in condenser (6)
It is more unobstructed out, and the indoor solenoid valve (11) and check-valves (9) that are closed can prevent the water of indoor from flowing out；
When unit powers on again, electrically disconnected on indoor solenoid valve (11), outdoor solenoid valve (8) powers on closure, and water pump will be indoor
Water pump into condenser (6), indoor water system pressure reduces, automatic water-replenishing device (13) starting automatic water supplement, water system pressure
Power gradually rises, and gas is discharged at automatic admission valve (7), and unit automatically replies operation.
2. a kind of heat pump low temperature anti-freeze system according to claim 1, it is characterised in that: the condenser (6) is plate
Formula heat exchanger.
3. a kind of heat pump low temperature anti-freeze system according to claim 1, it is characterised in that: the automatic admission valve (7)
It is installed on eminence, i.e. indoor is higher than outside, then automatic exhaust steam valve is mounted on indoor, check-valves (9) front；Indoor side
Lower than being outside, then mounted in outdoor water outlet highest point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910045968.9A CN109631389A (en) | 2019-01-14 | 2019-01-14 | A kind of heat pump low temperature anti-freeze system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910045968.9A CN109631389A (en) | 2019-01-14 | 2019-01-14 | A kind of heat pump low temperature anti-freeze system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109631389A true CN109631389A (en) | 2019-04-16 |
Family
ID=66061273
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910045968.9A Pending CN109631389A (en) | 2019-01-14 | 2019-01-14 | A kind of heat pump low temperature anti-freeze system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109631389A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202835785U (en) * | 2012-07-27 | 2013-03-27 | 江苏春兰空调设备有限公司 | Heat pump water heater capable of preventing cold water from flowing out in defrosting state |
| CN102997499A (en) * | 2012-12-28 | 2013-03-27 | 东南大学 | Air source heat pump device capable of producing cold water and hot mater at same time |
| CN209655614U (en) * | 2019-01-14 | 2019-11-19 | 浙江科麦人工环境有限公司 | A kind of heat pump low temperature anti-freeze system |
-
2019
- 2019-01-14 CN CN201910045968.9A patent/CN109631389A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202835785U (en) * | 2012-07-27 | 2013-03-27 | 江苏春兰空调设备有限公司 | Heat pump water heater capable of preventing cold water from flowing out in defrosting state |
| CN102997499A (en) * | 2012-12-28 | 2013-03-27 | 东南大学 | Air source heat pump device capable of producing cold water and hot mater at same time |
| CN209655614U (en) * | 2019-01-14 | 2019-11-19 | 浙江科麦人工环境有限公司 | A kind of heat pump low temperature anti-freeze system |
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