CN110440439A - A kind of low temperature antifreeze control method of heat pump water dispenser system - Google Patents
A kind of low temperature antifreeze control method of heat pump water dispenser system Download PDFInfo
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- CN110440439A CN110440439A CN201910732137.9A CN201910732137A CN110440439A CN 110440439 A CN110440439 A CN 110440439A CN 201910732137 A CN201910732137 A CN 201910732137A CN 110440439 A CN110440439 A CN 110440439A
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- dispenser system
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H4/00—Fluid heaters characterised by the use of heat pumps
- F24H4/02—Water heaters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/18—Arrangement or mounting of grates or heating means
- F24H9/1809—Arrangement or mounting of grates or heating means for water heaters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
The invention discloses a kind of low temperature antifreeze control methods of heat pump water dispenser system, it is antifreeze using being classified, antifreeze grade needed for can judging automatically according to temperature conditions, start corresponding equipment and carries out antifreeze processing, when circumstance temperature is not very low, start water circulating pump intermittent duty, allowing water-flow circuit to generate water flow prevents from freezing；When environment temperature is low, compressor or the auxiliary thermal of electricity heat water-flow circuit, and water temperature fast lifting is prevented from freezing；In heat pump water dispenser system-down without releasing the water in water-flow circuit, the waste of water resource is avoided；When part temperature sensor failure; it can entry condition by alternative temperature sensor as antifreeze judgement; unit is effectively protected in time; effectively avoid the entry condition by single temperature sensor as antifreeze judgement now; and when temperature sensor breaks down; the problem of cannot achieve antifreeze operation improves heat pump water dispenser system antifreeze reliability at low ambient temperatures.
Description
Technical field
The present invention relates to heat pump system technical fields, more particularly, to a kind of antifreeze controlling party of low temperature of heat pump water dispenser system
Method.
Background technique
Heat pump water dispenser system is that outdoor heat exchange coil and air heat-exchange are set to by heat pump unit, then by being set to room
Interior heat exchange coil exchanges heat with water, obtains high-temperature water by water-flow circuit and is transported to indoor heating, close to the north
Low temp area, heat pump water dispenser system all suffer under low temperature environment, and what generation was freezed in the case of not using or shutting down for a long time asks
Topic, once freezing, will result in whole system and is not normally functioning or even causes equipment damage.
Currently, many heat pump water dispenser systems, are arranged in system without automatic freezing-protective function, in water route, low spot increases a row
Water installations-drain valve remind user that when not in use, the water in water-flow circuit is bled off for a long time by specification；Also have
Producer, it is upper in water-flow circuit to increase a water valve that automatically opened according to temperature, when water temperature is lower than some value, water valve
Automatic valve opening discharges water；Also it is antifreeze that the progress of water pump long-play is arranged in some in control function, or simply determines water temperature, low
The auxiliary heat of starting electricity and compressor are heated in some temperature value, just exited higher than certain value.These methods need to otherwise be exactly
Human intervention is wanted, otherwise is exactly great lot of water resources waste, all there is its limitation.
Such as: the existing heat pump water dispenser system in market is by increasing a row at the lowest water level on water-flow circuit
Water valve, when cold season user leaves home outgoing slightly long-time, user needs to bleed off the water in water-flow circuit by water valve.
There are also substitute the drain valve in water-flow circuit, automatic freezing-protective valve using a kind of automatic freezing-protective valve when part of the manufacturer's design
Opening and closing between the interior heat sensitive element control piston to connect with circumstance temperature and valve seat, when circumstance temperature is lower than certain value (8 DEG C of left sides
It is right), valve is opened little by little, and the small water flow of water system generation is antifreeze, (drops to 3-5 DEG C) when circumstance temperature further declines, valve
It is fully open, the water in water system is discharged, prevents from freezing, when temperature recovery to certain temperature, frost valve is automatically closed.Both
Mode requires that water system is discharged in the water of water system when low temperature season is without using heating, is then mended before use again
Water generates great water resource waste in this way.
Summary of the invention
In view of the deficiencies of the prior art, the purpose of the present invention is to provide a kind of heat pump water dispensers for effectively playing antifreeze function
The low temperature antifreeze control method of system.
To achieve the above object, scheme provided by the invention are as follows: a kind of low temperature antifreeze control method of heat pump water dispenser system,
The heat pump water dispenser system includes heat pump unit, water-flow circuit and the auxiliary hot charging of electricity for being heated to water-flow circuit
It sets, wherein the heat pump unit includes compressor, and the water-flow circuit includes water circulating pump；The heat pump water dispenser system exists
There is level-one anti-freezing pattern and second level anti-freezing pattern, wherein under level-one anti-freezing pattern, between the water circulating pump under shutdown status
It has a rest operation, under second level anti-freezing pattern, the water circulating pump continuous service, meanwhile, start compressor or the auxiliary hot charging of starting electricity
It sets and water-flow circuit is heated；The heat pump water dispenser system further include set on be outdoor ring mirror environment temperature sensor,
The leaving water temperature sensors and inflow temperature sensor being respectively arranged at heat pump unit inlet and outlet；The low temperature is antifreeze
Control method include: when heat pump water dispenser system is under shutdown status, to environment temperature sensor, leaving water temperature sensors and
Inflow temperature sensor is detected；If environment temperature sensor, leaving water temperature sensors and inflow temperature sensor are
Normal condition, the then temperature data as acquired in environment temperature sensor, leaving water temperature sensors and inflow temperature sensor
Whether heat pump water dispenser system described in comprehensive descision enters level-one anti-freezing pattern or second level anti-freezing pattern；If environment temperature sensor,
Any one in leaving water temperature sensors and inflow temperature sensor or two sensors are malfunction, then by other one
Temperature data acquired in a or two sensors for normal condition judges whether the heat pump water dispenser system is anti-into level-one
Jelly mode or second level anti-freezing pattern.
Further, the heat pump unit includes that outdoor heat exchange coil pipe and the interior to exchange heat with the water-flow circuit are changed
Hot coil；The heat pump water dispenser system further includes set on the outer coil temperature sensor of outdoor heat exchange coil pipe and set on indoor heat exchange
The inner coil pipe temperature sensor of coil pipe；If the low temperature antifreeze control method includes: environment temperature sensor, leaving water temperature sensing
Device and inflow temperature sensor are malfunction, then to the outer coil temperature sensor and inner coil pipe temperature sensor into
Row detection, if outer coil temperature sensor and inner coil pipe temperature sensor are normal condition, by outer coil temperature sensor
With temperature data acquired in inner coil pipe temperature sensor judge the heat pump water dispenser system whether enter level-one anti-freezing pattern or
Second level anti-freezing pattern, if outer coil temperature sensor is malfunction, the temperature number as acquired in inner coil pipe temperature sensor
It is judged that whether the heat pump water dispenser system enters level-one anti-freezing pattern or second level anti-freezing pattern.
Further, the high pressure admission side of the indoor heat exchange coil is equipped with high-pressure temperature sensor；The antifreeze control of low temperature
If method processed include: environment temperature sensor, leaving water temperature sensors, inflow temperature sensor, outer coil temperature sensor and
Inner coil pipe temperature sensor is malfunction, then the temperature data as acquired in high-pressure temperature sensor judges the heat pump water
Whether machine system enters level-one anti-freezing pattern or second level anti-freezing pattern.
Further, the heat pump water dispenser system further includes being respectively arranged on the air-breathing of the air entry and exhaust outlet of the compressor
Temperature sensor and exhaust gas temperature sensor；The low temperature antifreeze control method includes: to prevent when heat pump water dispenser system enters second level
When jelly mode, suction temperature sensor, exhaust gas temperature sensor and outer coil temperature sensor are detected, if air-breathing temperature
Degree sensor, exhaust gas temperature sensor and outer coil temperature sensor be normal condition and compressor be can working condition
When, then start compressor and water-flow circuit is heated, if suction temperature sensor, exhaust gas temperature sensor and outer coil pipe
Any one in temperature sensor is malfunction or compressor is disorderly closedown state, and meets the auxiliary thermal starting condition of electricity
When, then start electricity auxiliary heat and water-flow circuit is heated.
Further, water flow switch is additionally provided on the water-flow circuit；The auxiliary thermal starting condition of electricity is that water flow switch is
At least one sensor is normal condition in normal condition and leaving water temperature sensors and inflow temperature sensor.
Further, the low temperature antifreeze control method includes: the detection when heat pump water dispenser system enters second level anti-freezing pattern
It is malfunction to water flow switch, if then compressor heats and shutdown of breaking down within a preset time water-flow circuit
Situation does not restart compressor then, only realizes that second level is antifreeze by water circulating pump continuous service.
Further, if the low temperature antifreeze control method includes: to detect leaving water temperature sensors, inflow temperature sensor
It is simultaneously malfunction with inner coil pipe temperature sensor, then controls heat pump water dispenser system and exit second level anti-freezing pattern or do not enter
Second level anti-freezing pattern.
Compared with the prior art, the beneficial effect of the present invention is that it is antifreeze using being classified, institute can be judged automatically according to temperature conditions
Antifreeze grade is needed, starts corresponding equipment and carries out antifreeze processing, when circumstance temperature is not very low, starts water circulating pump intermittent duty,
Allowing water-flow circuit to generate water flow prevents from freezing；When environment temperature is low, compressor or the auxiliary thermal of electricity carry out water-flow circuit
Heating, water temperature fast lifting is prevented from freezing；In heat pump water dispenser system-down without releasing the water in water-flow circuit, keep away
The waste of water resource is exempted from；It, can be by alternative temperature sensor opening as antifreeze judgement when part temperature sensor failure
Dynamic condition, effectively protects unit in time, effectively avoids the trip bar now by single temperature sensor as antifreeze judgement
Part, and when temperature sensor breaks down, the problem of cannot achieve antifreeze operation, heat pump water dispenser system is improved in low temperature ring
Antifreeze reliability under border.
Detailed description of the invention
Fig. 1 is flow chart of the invention.
Specific embodiment
The present invention is further explained in the light of specific embodiments:
Referring to shown in attached drawing 1, the present embodiment is a kind of low temperature antifreeze control method of heat pump water dispenser system, heat pump water dispenser system packet
Include heat pump unit, water-flow circuit and the auxiliary thermal of electricity for being heated to water-flow circuit, wherein heat pump unit packet
Compressor, outdoor heat exchange coil pipe and the indoor heat exchange coil to exchange heat with water-flow circuit are included, water-flow circuit includes circulation
Water pump；Heat pump water dispenser system has level-one anti-freezing pattern and second level anti-freezing pattern under shutdown status, wherein in the antifreeze mould of level-one
Under formula, water circulating pump intermittent duty, under second level anti-freezing pattern, water circulating pump continuous service, meanwhile, start compressor or opens
The dynamic auxiliary thermal of electricity heats water-flow circuit；Heat pump water dispenser system further includes passing set on the environment temperature for being outdoor ring mirror
Sensor, the leaving water temperature sensors being respectively arranged at heat pump unit inlet and outlet and inflow temperature sensor are set to room
The outer coil temperature sensor of outer heat exchange coil and inner coil pipe temperature sensor set on indoor heat exchange coil.
In the present embodiment, low temperature antifreeze control method includes:
When heat pump water dispenser system is under shutdown status, to environment temperature sensor, leaving water temperature sensors and inflow temperature
Sensor is detected；If environment temperature sensor, leaving water temperature sensors and inflow temperature sensor are normal condition,
The then heat of the temperature data comprehensive descision as acquired in environment temperature sensor, leaving water temperature sensors and inflow temperature sensor
Whether water pumping machine system enters level-one anti-freezing pattern or second level anti-freezing pattern；If environment temperature sensor, leaving water temperature sensors
And any one in inflow temperature sensor or two sensors are malfunction, then are normal by another or two
Temperature data acquired in the sensor of state judges whether heat pump water dispenser system enters level-one anti-freezing pattern or the antifreeze mould of second level
Formula；Specially following several situations:
Environment temperature sensor, leaving water temperature sensors and inflow temperature sensor are normal condition: when environment temperature passes
Leaving water temperature T2 acquired in environment temperature T1≤3 DEG C and leaving water temperature sensors and inflow temperature sensor acquired in sensor
With the minimum value min { T2, T3 } in inflow temperature T3 be 5 DEG C 8 DEG C of < of < min { T2, T3 } when, then control heat pump water dispenser system into
Enter level-one anti-freezing pattern, exits level-one anti-freezing pattern when operation to min { T2, T3 } >=8 DEG C or environment temperature T1 >=6 DEG C, when
Operation is to environment temperature T1≤3 DEG C and min { T2, T3 }≤5 DEG C of time control heating water pumping machine system enters second level anti-freezing pattern, until
Min { T2, T3 } >=15 DEG C or environment temperature T1 >=6 DEG C, then exit second level anti-freezing pattern；
If environment temperature sensor is malfunction, judged by leaving water temperature sensors and inflow temperature sensor: when out
In leaving water temperature T2 and inflow temperature T3 acquired in water temperature sensor and inflow temperature sensor minimum value min T2,
T3 } when being 5 DEG C 8 DEG C of < of < min { T2, T3 }, then controls heat pump water dispenser system and enter level-one anti-freezing pattern, when operation is to min
Level-one anti-freezing pattern is exited when { T2, T3 } >=8 DEG C, when operation to min { T2, T3 }≤5 DEG C of time control heating water pumping machine system enters
Second level anti-freezing pattern, until min { T2, T3 } >=15 DEG C, then exit second level anti-freezing pattern；
If leaving water temperature sensors are malfunction, are judged by environment temperature sensor and inflow temperature sensor: working as ring
Inflow temperature T3 acquired in environment temperature T1≤3 DEG C and inflow temperature sensor acquired in the temperature sensor of border is 5 DEG C of <
It at 8 DEG C of T3 <, then controls heat pump water dispenser system and enters level-one anti-freezing pattern, when operation to T3 >=8 DEG C or environment temperature T1 >=6
DEG C when exit level-one anti-freezing pattern, when operation to environment temperature T1≤3 DEG C and T3≤5 DEG C time control heating water pumping machine system enter two
Grade anti-freezing pattern, until T3 >=15 DEG C or environment temperature T1 >=6 DEG C, then exit second level anti-freezing pattern；
If inflow temperature sensor is malfunction, is judged by environment temperature sensor and leaving water temperature sensors: working as ring
Leaving water temperature T2 acquired in environment temperature T1≤3 DEG C and leaving water temperature sensors acquired in the temperature sensor of border is 5 DEG C of <
It at 8 DEG C of T2 <, then controls heat pump water dispenser system and enters level-one anti-freezing pattern, when operation to T2 >=8 DEG C or environment temperature T1 >=6
DEG C when exit level-one anti-freezing pattern, when operation to environment temperature T1≤3 DEG C and T2≤5 DEG C time control heating water pumping machine system enter two
Grade anti-freezing pattern, until T2 >=20 DEG C or environment temperature T1 >=6 DEG C, then exit second level anti-freezing pattern；
If inflow temperature sensor and leaving water temperature sensors are simultaneously malfunction, sentenced by environment temperature sensor
Disconnected: the environment temperature T1 acquired in the environment temperature sensor is 3 DEG C of T1≤5 DEG C <, then controls heat pump water dispenser system into one
Grade anti-freezing pattern, when level-one anti-freezing pattern is exited in operation to T1 >=6 DEG C, when operation to environment temperature T1≤3 DEG C, control heat pump
Water dispenser system enters second level anti-freezing pattern, if continuing 60s at this time detects inner coil pipe detected by inner coil pipe temperature sensor
Second level anti-freezing pattern is then exited in temperature T5 >=25 DEG C, needs just to allow to be again introduced into the antifreeze mould of second level after being at least spaced 6min later
Formula:
If inflow temperature sensor and environment temperature sensor are simultaneously malfunction, sentenced by leaving water temperature sensors
It is disconnected: when the leaving water temperature T2 acquired in the leaving water temperature sensors is 5 DEG C 8 DEG C of < T2 <, then to control the entrance of heat pump water dispenser system
Level-one anti-freezing pattern exits level-one anti-freezing pattern when operation to T2 >=8 DEG C, when operation to T2≤5 DEG C time control heats water pumping machine
System enters second level anti-freezing pattern, until second level anti-freezing pattern is exited in T2 >=20 DEG C；
If leaving water temperature sensors and environment temperature sensor are simultaneously malfunction, sentenced by inflow temperature sensor
It is disconnected: when the inflow temperature T3 acquired in the inflow temperature sensor is 5 DEG C 8 DEG C of < T3 <, then to control the entrance of heat pump water dispenser system
Level-one anti-freezing pattern exits level-one anti-freezing pattern when operation to T3 >=8 DEG C, when operation to T3≤5 DEG C time control heats water pumping machine
System enters second level anti-freezing pattern, until second level anti-freezing pattern is exited in T3 >=15 DEG C；
If environment temperature sensor, leaving water temperature sensors and inflow temperature sensor are malfunction, external coil pipe
Temperature sensor and inner coil pipe temperature sensor are detected, if outer coil temperature sensor and inner coil pipe temperature sensor are
Normal condition, then the temperature data as acquired in outer coil temperature sensor and inner coil pipe temperature sensor judges heat pump water dispenser system
Whether system enters level-one anti-freezing pattern or second level anti-freezing pattern, specifically, if external disk detected by outer coil temperature sensor
Tube temperature degree T4 is 3 DEG C of T4≤5 DEG C <, then controls heat pump water dispenser system and enter level-one anti-freezing pattern, enters the antifreeze mould of level-one at this time
After formula, if outer coil temperature sensor fault, does not exit level-one anti-freezing pattern, one is exited when outer coil temperature T4 >=6 DEG C
Grade anti-freezing pattern controls heat pump water dispenser system and enters second level anti-freezing pattern if outer coil temperature T4≤3 DEG C, leads to after running 60s
Second level anti-freezing pattern is exited when crossing inner coil pipe temperature T5 >=25 DEG C that inner coil pipe temperature sensor detects, is at least spaced at this time
Just allow to be again introduced into second level anti-freezing pattern after 6min；If outer coil temperature sensor is malfunction, by inner coil pipe temperature
Temperature data acquired in sensor judges whether heat pump water dispenser system enters level-one anti-freezing pattern or second level anti-freezing pattern, specifically
For, if inner coil pipe temperature T5 acquired in inner coil pipe temperature sensor be 3 DEG C of T5≤5 DEG C <, control heat pump water dispenser system into
Enter level-one anti-freezing pattern, level-one anti-freezing pattern is exited when T5 >=6 DEG C, when T5≤3 DEG C, control heat pump water dispenser system enters two
Grade anti-freezing pattern, run 60s after inner coil pipe temperature T5 >=25 DEG C when exit second level anti-freezing pattern, at this time at least be spaced 6min after
Allow to be again introduced into second level anti-freezing pattern and only open water circulating pump, the auxiliary thermal of electricity and compressor are not turned on.
In the present embodiment, the high pressure admission side of indoor heat exchange coil is equipped with high-pressure temperature sensor；The antifreeze control of low temperature
If method includes: environment temperature sensor, leaving water temperature sensors, inflow temperature sensor, outer coil temperature sensor and interior
Coil temperature sensor is malfunction, then the temperature data as acquired in high-pressure temperature sensor judges heat pump water dispenser system
Whether level-one anti-freezing pattern or second level anti-freezing pattern are entered, specifically, if high pressure temperature T6 acquired in high-pressure temperature sensor
It for 3 DEG C of T6-10 DEG C≤5 DEG C <, then controls heat pump water dispenser system and enters level-one anti-freezing pattern, exit one when T6-10 DEG C >=6 DEG C
Grade anti-freezing pattern, when T6-10 DEG C≤3 DEG C, control heat pump water dispenser system enters second level anti-freezing pattern, runs inner coil pipe after 60s
Second level anti-freezing pattern is exited when T6-10 DEG C of temperature >=25 DEG C.
In the present embodiment, heat pump water dispenser system further includes being respectively arranged on the air-breathing temperature of the air entry and exhaust outlet of compressor
Spend sensor and exhaust gas temperature sensor；Low temperature antifreeze control method includes: when heat pump water dispenser system enters second level anti-freezing pattern
When, suction temperature sensor, exhaust gas temperature sensor and outer coil temperature sensor are detected, if suction temperature senses
Device, exhaust gas temperature sensor and outer coil temperature sensor be normal condition and compressor be can working condition when, then open
Dynamic compressor heats water-flow circuit, if suction temperature sensor, exhaust gas temperature sensor and outer coil temperature pass
Any one in sensor is malfunction or compressor is disorderly closedown state, and when meeting electric auxiliary thermal starting condition, is then opened
The dynamic auxiliary heat of electricity heats water-flow circuit.
In the present embodiment, water flow switch is additionally provided on water-flow circuit；The auxiliary thermal starting condition of electricity is positive for water flow switch
At least one sensor is normal condition in normal state and leaving water temperature sensors and inflow temperature sensor.
In the present embodiment, low temperature antifreeze control method includes: the inspection when heat pump water dispenser system enters second level anti-freezing pattern
Measuring water flow switch is malfunction, if then compressor heats water-flow circuit and breaks down stop within a preset time
Machine situation does not restart compressor then, only realizes that second level is antifreeze by water circulating pump continuous service.
In the present embodiment, if low temperature antifreeze control method includes: to detect leaving water temperature sensors, inflow temperature sensing
Device and inner coil pipe temperature sensor are simultaneously malfunction, then control heat pump water dispenser system exit second level anti-freezing pattern or not into
Enter second level anti-freezing pattern.
In the present embodiment, under level-one anti-freezing pattern, water circulating pump intermittent duty, specifically, water pump divides according to operation 3
Clock shuts down max { 3,20+T1 } minute circular flow, wherein the numerical value that max { 3,20+T1 } is environment temperature T1 adds numerical value 20
The maximum value taken compared with numerical value 3 afterwards；When environment temperature sensor failure, then shut down 3 minutes and follow according to operation 3 minutes
Inscription of loop.
In addition, it should be noted that, the specific embodiments described in this specification, each section title etc. can not
Together, the equivalent or simple change that all structure, feature and principles described according to the invention patent design are done, is included in the present invention
In the protection scope of patent.Those skilled in the art can do described specific embodiment various each
The mode that the modify or supplement or adopt of sample is similar substitutes, and without departing from structure of the invention or surmounts the claims
Defined range, is within the scope of protection of the invention.
Claims (7)
1. a kind of low temperature antifreeze control method of heat pump water dispenser system, the heat pump water dispenser system includes heat pump unit, water circulation
Circuit and the auxiliary thermal of electricity for being heated to water-flow circuit, wherein the heat pump unit includes compressor, described
Water-flow circuit includes water circulating pump；It is characterized by: the heat pump water dispenser system has the antifreeze mould of level-one under shutdown status
Formula and second level anti-freezing pattern, wherein under level-one anti-freezing pattern, the water circulating pump intermittent duty, under second level anti-freezing pattern,
The water circulating pump continuous service, meanwhile, start compressor or the auxiliary thermal of starting electricity heats water-flow circuit；Institute
State heat pump water dispenser system further include set on be outdoor ring mirror environment temperature sensor, be respectively arranged on heat pump unit water inlet and go out
Leaving water temperature sensors and inflow temperature sensor at the mouth of a river；The low temperature antifreeze control method includes: when heat pump water dispenser system
System detects environment temperature sensor, leaving water temperature sensors and inflow temperature sensor under shutdown status；If
Environment temperature sensor, leaving water temperature sensors and inflow temperature sensor are normal condition, then are sensed by environment temperature
Heat pump water dispenser system described in temperature data comprehensive descision acquired in device, leaving water temperature sensors and inflow temperature sensor is
It is no to enter level-one anti-freezing pattern or second level anti-freezing pattern；If environment temperature sensor, leaving water temperature sensors and inflow temperature
Any one in sensor or two sensors are malfunction, then by another or two sensors for normal condition
Acquired temperature data judges whether the heat pump water dispenser system enters level-one anti-freezing pattern or second level anti-freezing pattern.
2. a kind of low temperature antifreeze control method of heat pump water dispenser system according to claim 1, it is characterised in that: the heat
Pump assembly includes outdoor heat exchange coil pipe and the indoor heat exchange coil that exchanges heat with the water-flow circuit；Heat pump water dispenser system
System further includes the inner coil pipe temperature sensing set on the outer coil temperature sensor of outdoor heat exchange coil pipe and set on indoor heat exchange coil
Device；If the low temperature antifreeze control method includes: environment temperature sensor, leaving water temperature sensors and inflow temperature sensor
It is malfunction, then the outer coil temperature sensor and inner coil pipe temperature sensor is detected, if outer coil temperature
Sensor and inner coil pipe temperature sensor are normal condition, then by outer coil temperature sensor and inner coil pipe temperature sensor institute
The temperature data of acquisition judges whether the heat pump water dispenser system enters level-one anti-freezing pattern or second level anti-freezing pattern, if outer coil pipe
Temperature sensor is malfunction, then the temperature data as acquired in inner coil pipe temperature sensor judges the heat pump water dispenser system
Whether level-one anti-freezing pattern or second level anti-freezing pattern are entered.
3. a kind of low temperature antifreeze control method of heat pump water dispenser system according to claim 2, it is characterised in that: the room
The high pressure admission side of interior heat exchange coil is equipped with high-pressure temperature sensor；If the low temperature antifreeze control method includes: environment temperature
Sensor, leaving water temperature sensors, inflow temperature sensor, outer coil temperature sensor and inner coil pipe temperature sensor are event
Barrier state, then it is antifreeze to judge whether the heat pump water dispenser system enters level-one for the temperature data as acquired in high-pressure temperature sensor
Mode or second level anti-freezing pattern.
4. a kind of low temperature antifreeze control method of heat pump water dispenser system according to claim 2, it is characterised in that: the heat
Water pumping machine system further includes being respectively arranged on the air entry of the compressor and the suction temperature sensor of exhaust outlet and delivery temperature
Sensor；The low temperature antifreeze control method includes: to pass when heat pump water dispenser system enters second level anti-freezing pattern to suction temperature
Sensor, exhaust gas temperature sensor and outer coil temperature sensor are detected, if suction temperature sensor, delivery temperature sense
Device and outer coil temperature sensor be normal condition and compressor be can working condition when, then start compressor and water recycled
Circuit is heated, if any one in suction temperature sensor, exhaust gas temperature sensor and outer coil temperature sensor is
Malfunction or compressor are disorderly closedown state, and when meeting electric auxiliary thermal starting condition, then start the auxiliary heat of electricity and recycle to water
Circuit is heated.
5. a kind of low temperature antifreeze control method of heat pump water dispenser system according to claim 3, it is characterised in that: the water
Water flow switch is additionally provided on circulation loop；The auxiliary thermal starting condition of electricity is that water flow switch is normal condition and leaving water temperature senses
At least one sensor is normal condition in device and inflow temperature sensor.
6. a kind of low temperature antifreeze control method of heat pump water dispenser system according to claim 4, it is characterised in that: described low
Warm antifreeze control method includes: to detect that water flow switch is malfunction when heat pump water dispenser system enters second level anti-freezing pattern,
If then compressor heats water-flow circuit and breaks down shut down situation within a preset time, compression is not restarted
Machine only realizes that second level is antifreeze by water circulating pump continuous service.
7. a kind of low temperature antifreeze control method of heat pump water dispenser system according to claim 2, it is characterised in that: described low
If warm antifreeze control method includes: to detect that leaving water temperature sensors, inflow temperature sensor and inner coil pipe temperature sensor are same
When be malfunction, then control heat pump water dispenser system and exit second level anti-freezing pattern or do not enter second level anti-freezing pattern.
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| CN201910732137.9A CN110440439A (en) | 2019-08-09 | 2019-08-09 | A kind of low temperature antifreeze control method of heat pump water dispenser system |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110986276A (en) * | 2019-12-02 | 2020-04-10 | 珠海格力电器股份有限公司 | Water multi-connected system anti-freezing control method, computer readable storage medium and air conditioner |
| CN111609519A (en) * | 2020-06-04 | 2020-09-01 | 宁波奥克斯电气股份有限公司 | Controller, air-conditioning floor heating system and anti-freezing control method thereof |
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| CN112902444A (en) * | 2021-02-09 | 2021-06-04 | 珠海格力电器股份有限公司 | Anti-freezing protection method, device and apparatus for heat pump water machine and air conditioner |
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| CN114234450B (en) * | 2021-12-24 | 2023-09-08 | 山东雅士股份有限公司 | Variable frequency CO 2 Control method of water heater unit |
| CN115823786A (en) * | 2022-12-08 | 2023-03-21 | 珠海格力电器股份有限公司 | Unit anti-freezing control method and device and water chilling unit |
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