CN117053406A - Heat pump multi-split air conditioner with natural fluoride hot water and control method thereof - Google Patents
Heat pump multi-split air conditioner with natural fluoride hot water and control method thereof Download PDFInfo
- Publication number
- CN117053406A CN117053406A CN202310957046.1A CN202310957046A CN117053406A CN 117053406 A CN117053406 A CN 117053406A CN 202310957046 A CN202310957046 A CN 202310957046A CN 117053406 A CN117053406 A CN 117053406A
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- Prior art keywords
- expansion valve
- water tank
- current
- opening
- steps
- 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.)
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Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 89
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 title claims abstract description 10
- 238000000034 method Methods 0.000 title claims abstract description 9
- 238000010438 heat treatment Methods 0.000 claims abstract description 4
- 229920006395 saturated elastomer Polymers 0.000 claims description 20
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims description 4
- 229910052731 fluorine Inorganic materials 0.000 claims description 4
- 239000011737 fluorine Substances 0.000 claims description 4
- 239000002826 coolant Substances 0.000 claims 1
- 239000003507 refrigerant Substances 0.000 abstract description 4
- 230000000630 rising effect Effects 0.000 abstract description 2
- 239000008236 heating water Substances 0.000 abstract 1
- 238000004891 communication Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
Classifications
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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
- F24H15/00—Control of fluid heaters
- F24H15/20—Control of fluid heaters characterised by control inputs
- F24H15/212—Temperature of the water
- F24H15/223—Temperature of the water in the water storage tank
-
- 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
- F24H15/00—Control of fluid heaters
- F24H15/20—Control of fluid heaters characterised by control inputs
- F24H15/258—Outdoor temperature
-
- 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
- F24H15/00—Control of fluid heaters
- F24H15/30—Control of fluid heaters characterised by control outputs; characterised by the components to be controlled
- F24H15/375—Control of heat pumps
- F24H15/385—Control of expansion valves of heat pumps
-
- 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
- F24H15/00—Control of fluid heaters
- F24H15/40—Control of fluid heaters characterised by the type of controllers
- F24H15/414—Control of fluid heaters characterised by the type of controllers using electronic processing, e.g. computer-based
- F24H15/421—Control of fluid heaters characterised by the type of controllers using electronic processing, e.g. computer-based using pre-stored data
-
- 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
- F24H15/00—Control of fluid heaters
- F24H15/40—Control of fluid heaters characterised by the type of controllers
- F24H15/486—Control of fluid heaters characterised by the type of controllers using timers
-
- 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
Landscapes
- 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)
- Computer Hardware Design (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
The application discloses a heat pump multi-split air conditioner for natural fluoride hot water and a control method thereof, wherein the heat pump multi-split air conditioner comprises an outdoor unit, at least two indoor units and a living water tank, wherein an exhaust port of a compressor of the outdoor unit is divided into two paths, one path enters a four-way valve, the other path enters a refrigerant system of the living water tank through a water tank heating pipe, an air pipe port of the outdoor unit is connected with the indoor unit through a host expansion valve, and when the load of the indoor unit and the living water tank which are simultaneously opened is less than 30% of the energy of the outdoor unit, the opening degree of the host expansion valve is controlled according to the temperature of an outdoor environment. When the opening load of the indoor unit is low, the application can also rapidly meet the hot water temperature requirement set by a customer, simultaneously adjusts the opening of the expansion valve of the host in real time along with the rising of the water temperature, reasonably utilizes two heat exchangers to exchange heat, and realizes the most effective energy saving when refrigerating and heating water.
Description
Technical Field
The application relates to a heat pump multi-split air conditioner for natural fluoride hot water and a control method thereof.
Background
At present, a natural fluoride hot water unit appears in the industry, and the natural fluoride hot water unit is cooled in functional summer and can generate hot water in a water tank by utilizing the exhaust temperature of a compressor; the unit is equivalent to refrigerating with two heat exchangers for condensation, and the condensed liquid refrigerant enters an indoor unit for throttling to realize refrigeration.
When the indoor unit is started up, the indoor unit is started up to be loaded very little, so that the indoor unit can not meet the temperature set by a customer, and if the host increases capacity output, the indoor unit is started up to be loaded too little to exchange heat, and finally the temperature of the hot water required by the customer can not be influenced.
Disclosure of Invention
Aiming at the problems, the application provides a heat pump multi-split air conditioner for natural fluoride hot water and a control method thereof, and the problems pointed out in the background technology are effectively solved.
The technical scheme adopted by the application is as follows:
the utility model provides a heat pump multi-split machine of day fluorine hot water, includes an off-premises station, two at least indoor units and a living water tank, the compressor gas vent of off-premises station divides two ways, and one way gets into the cross valve, and another way gets into the refrigerant system of living water tank through the water tank heating pipe, the air inlet of off-premises station is connected with indoor unit through host computer expansion valve.
The control method of the heat pump multi-split air conditioner for the natural fluoride hot water comprises the steps of controlling the opening degree of a main machine expansion valve according to the temperature of an outdoor environment when the load of the indoor machine and a living water tank which are simultaneously opened is less than 30% of the outdoor machine capacity:
1) The outdoor environment temperature is less than 25 ℃, and the opening degree of the expansion valve of the host is 250 steps;
2) The outdoor environment temperature is more than or equal to 25 ℃ and less than or equal to 35 ℃, and the opening of the expansion valve of the host is 300 steps;
3) The outdoor environment temperature is more than 35 ℃ and less than or equal to 40 ℃, and the opening of the expansion valve of the host is 350 steps;
4) The outdoor environment temperature is higher than 40 ℃, and the opening degree of the expansion valve of the host is 450 steps.
Preferably, the outdoor unit outputs the load according to the indoor unit and the living water tank.
Preferably, the heat pump multi-split air conditioner is started for 15 minutes:
1) If the saturated temperature corresponding to the current high pressure minus the current water temperature of the domestic water tank is higher than 3 ℃, reducing the main expansion valve every 60 seconds, wherein the reduced value of the main expansion valve is a saturated temperature value corresponding to the current high pressure-the current water temperature value of the domestic water tank, the reduced value of the main expansion valve is not more than 10 steps, meanwhile, the minimum opening degree of the main expansion valve is 200 steps, if the saturated temperature value corresponding to the current high pressure-the current water temperature value of the domestic water tank is higher than 10, the reduced value of the main expansion valve is reduced according to 10, and if the current opening degree of the main expansion valve is 200 steps, the main expansion valve is not reduced any more;
2) If the difference value of the saturated temperature corresponding to the current high-pressure minus the current water temperature of the domestic water tank is [ 3-3 ], the opening of the expansion valve of the main machine is maintained unchanged;
3) If the current water temperature of the living water tank is less than minus 3 ℃ after the current water temperature of the living water tank is subtracted from the saturated temperature corresponding to the current high-pressure, the host expansion valve is increased every 60 seconds, the increase value of the host expansion valve is the current water temperature value of the living water tank-the saturated temperature value corresponding to the current high-pressure, the increase value of the host expansion valve is not more than 10 steps, meanwhile, the maximum opening degree of the host expansion valve is 480 steps, if the current water temperature value of the living water tank-the saturated temperature value corresponding to the current high-pressure is greater than 10, the increase value of the host expansion valve is increased according to 10, and if the current opening degree of the host expansion valve is 480 steps, the opening degree of the host expansion valve is not increased any more.
According to the application, when the outdoor environment temperature is low and the opening load of the indoor unit is small, most of the exhaust temperature of the compressor is subjected to heat exchange towards the domestic water tank by dynamically adjusting the main expansion valve, and the heat exchange quantity of the outdoor heat exchanger is reduced, so that the requirement of the hot water temperature set by a customer can be rapidly met when the opening load of the indoor unit is low, meanwhile, the opening of the main expansion valve is adjusted in real time along with the rising of the water temperature, the heat exchange is performed by reasonably utilizing the two heat exchangers, and the most effective energy saving is realized when the water is cooled and heated.
Drawings
Fig. 1 is a schematic diagram of a system of the present application.
Detailed Description
It should be noted that the following detailed description is illustrative and is intended to provide further explanation of the application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.
Furthermore, in the description of the present application, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "clockwise," "counterclockwise," etc. indicate or are based on the orientation or positional relationship shown in the drawings, merely for convenience of description and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the application.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, unless otherwise specified, the meaning of "a plurality" is two or more, unless otherwise clearly defined.
In the present application, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present application, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
The application will now be described in further detail with reference to the accompanying drawings by means of specific examples.
Example 1
As shown in fig. 1, a heat pump multi-split air conditioner for natural fluoride hot water comprises an outdoor unit 1, at least two indoor units 2 and a living water tank 3, wherein an exhaust port of a compressor of the outdoor unit 1 is divided into two paths, one path enters a four-way valve, the other path enters a refrigerant system of the living water tank 3 through a water tank heating pipe 4, and an air pipe opening of the outdoor unit 1 is connected with the indoor units 2 through a host expansion valve 5.
When the load of the indoor unit 2 and the domestic water tank 3 which are simultaneously opened is less than 30% of the capacity of the outdoor unit 1, the opening degree of the expansion valve 5 of the host is controlled according to the temperature of the outdoor environment:
1) The outdoor environment temperature is less than 25 ℃, and the opening of the main engine expansion valve 5 is 250 steps;
2) The outdoor environment temperature is more than or equal to 25 ℃ and less than or equal to 35 ℃, and the opening of the main engine expansion valve 5 is 300 steps;
3) The outdoor environment temperature is more than 35 ℃ and less than or equal to 40 ℃, and the opening of the main engine expansion valve 5 is 350 steps;
4) The outdoor environment temperature is higher than 40 ℃, and the opening of the main engine expansion valve 5 is 450 steps.
The outdoor unit 1 outputs according to the loads of the indoor unit 2 and the living water tank 3, for example, when the opening load of the indoor unit 2 and the living water tank 3 is 30%, the outdoor unit outputs according to 30% capacity.
After the heat pump multi-split air conditioner is started for 15 minutes:
1) If the saturated temperature corresponding to the current high pressure minus the current water temperature of the domestic water tank is greater than 3 ℃, reducing the main expansion valve 5 every 60 seconds, wherein the reduced value of the main expansion valve 5 is a saturated temperature value corresponding to the current high pressure-the current water temperature value of the domestic water tank, the reduced value of the main expansion valve 5 does not exceed 10 steps each time, meanwhile, the minimum opening degree of the main expansion valve 5 is 200 steps, if the saturated temperature value corresponding to the current high pressure-the current water temperature value of the domestic water tank is greater than 10, the reduced value of the main expansion valve 5 is reduced according to 10, and if the current opening degree of the main expansion valve 5 is 200 steps, the main expansion valve 5 is not reduced any more;
2) If the difference value of the saturated temperature corresponding to the current high-pressure and the current water temperature of the domestic water tank is 3 ℃ below zero to 3 ℃, the opening of the expansion valve 5 of the main machine is kept unchanged;
3) If the current water temperature of the domestic water tank is less than minus 3 ℃ after the saturated temperature corresponding to the current high-pressure is subtracted, the host expansion valve 5 is increased every 60 seconds, the increase value of the host expansion valve 5 is the current water temperature value of the domestic water tank-the saturated temperature value corresponding to the current high-pressure, the increase value of the host expansion valve 5 does not exceed 10 steps each time, meanwhile, the maximum opening degree of the host expansion valve 5 is 480 steps, if the current water temperature value of the domestic water tank-the saturated temperature value corresponding to the current high-pressure is greater than 10, the increase value of the host expansion valve 5 is increased according to 10, and if the current opening degree of the host expansion valve 5 is 480 steps, the opening degree of the host expansion valve 5 is not increased any more.
Finally, it should be noted that the above list is only specific embodiments of the present application. Obviously, the application is not limited to the above embodiments, but many variations are possible. All modifications directly derived or suggested to one skilled in the art from the present disclosure should be considered as being within the scope of the present application.
Claims (4)
1. The utility model provides a heat pump multi-split machine of day fluorine hot water, its characterized in that includes an off-premises station (1), two at least indoor units (2) and a living water tank (3), the compressor gas vent of off-premises station (1) divides two ways, gets into the cross valve one way, and the coolant system of living water tank (3) is got into through water tank heating pipe (4) another way, the air inlet of off-premises station (1) passes through host computer expansion valve (5) and links to each other with indoor unit (2).
2. The control method of a heat pump multi-split air conditioner for solar fluoride hot water according to claim 1, wherein when the load of opening the indoor unit (2) and the domestic water tank (3) simultaneously is less than 30% of the capacity of the outdoor unit (1), the opening degree of the main expansion valve (5) is controlled according to the temperature of the outdoor environment:
1) The outdoor environment temperature is less than 25 ℃, and the opening of the main engine expansion valve (5) is 250 steps;
2) The outdoor environment temperature is more than or equal to 25 ℃ and less than or equal to 35 ℃, and the opening of the main engine expansion valve (5) is 300 steps;
3) The outdoor environment temperature is more than 35 ℃ and less than or equal to 40 ℃, and the opening of the main engine expansion valve (5) is 350 steps;
4) The outdoor environment temperature is higher than 40 ℃, and the opening of the main engine expansion valve (5) is 450 steps.
3. The control method of the multi-split heat pump system for the seed-day fluorine hot water according to claim 2, wherein the outdoor unit (1) outputs according to the loads of the indoor unit (2) and the living water tank (3).
4. The control method of the heat pump multi-split air conditioner for the seed-day fluorine hot water according to claim 2, wherein after the heat pump multi-split air conditioner is started for 15 minutes:
1) If the saturated temperature corresponding to the current high pressure minus the current water temperature of the domestic water tank is higher than 3 ℃, reducing the main expansion valve (5) every 60 seconds, wherein the reduced value of the main expansion valve (5) is a saturated temperature value corresponding to the current high pressure-the current water temperature value of the domestic water tank, the reduced value of the main expansion valve (5) is not more than 10 steps each time, meanwhile, the minimum opening of the main expansion valve (5) is 200 steps, if the saturated temperature value corresponding to the current high pressure-the current water temperature value of the domestic water tank is higher than 10, the reduced value of the main expansion valve (5) is reduced according to 10, and if the current opening of the main expansion valve (5) is 200 steps, the main expansion valve (5) is not reduced any more;
2) If the difference value of the saturated temperature corresponding to the current high-pressure and the current water temperature of the domestic water tank is 3 ℃ below zero to 3 ℃, the opening of the expansion valve (5) of the main machine is maintained unchanged;
3) And if the current water temperature of the living water tank is less than minus 3 ℃ after subtracting the current water temperature of the living water tank from the current high-pressure, increasing the host expansion valve (5) every 60 seconds, wherein the increase value of the host expansion valve (5) is the current water temperature value of the living water tank-the saturated temperature value corresponding to the current high-pressure, the increase value of the host expansion valve (5) is not more than 10 steps each time, meanwhile, the maximum opening degree of the host expansion valve (5) is 480 steps, if the current water temperature value of the living water tank-the saturated temperature value corresponding to the current high-pressure is more than 10, the increase value of the host expansion valve (5) is increased according to 10, and if the current opening degree of the host expansion valve (5) is 480 steps, the opening degree of the host expansion valve (5) is not increased any more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310957046.1A CN117053406A (en) | 2023-07-31 | 2023-07-31 | Heat pump multi-split air conditioner with natural fluoride hot water and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310957046.1A CN117053406A (en) | 2023-07-31 | 2023-07-31 | Heat pump multi-split air conditioner with natural fluoride hot water and control method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117053406A true CN117053406A (en) | 2023-11-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310957046.1A Pending CN117053406A (en) | 2023-07-31 | 2023-07-31 | Heat pump multi-split air conditioner with natural fluoride hot water and control method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117053406A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114739047A (en) * | 2022-04-26 | 2022-07-12 | 浙江中广电器集团股份有限公司 | Heat pump water heater and control method for exhaust temperature of compressor thereof |
-
2023
- 2023-07-31 CN CN202310957046.1A patent/CN117053406A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114739047A (en) * | 2022-04-26 | 2022-07-12 | 浙江中广电器集团股份有限公司 | Heat pump water heater and control method for exhaust temperature of compressor thereof |
| CN114739047B (en) * | 2022-04-26 | 2024-04-02 | 浙江中广电器集团股份有限公司 | Heat pump water heater and control method for exhaust temperature of compressor of heat pump water heater |
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