CN113137657A - One-driving-two heat pump heating water supply system and control method thereof - Google Patents
One-driving-two heat pump heating water supply system and control method thereof Download PDFInfo
- Publication number
- CN113137657A CN113137657A CN202110511421.0A CN202110511421A CN113137657A CN 113137657 A CN113137657 A CN 113137657A CN 202110511421 A CN202110511421 A CN 202110511421A CN 113137657 A CN113137657 A CN 113137657A
- Authority
- CN
- China
- Prior art keywords
- water
- water tank
- tank
- pipe
- heat pump
- 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
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D17/00—Domestic hot-water supply systems
- F24D17/02—Domestic hot-water supply systems using heat pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D19/00—Details
- F24D19/10—Arrangement or mounting of control or safety devices
- F24D19/1006—Arrangement or mounting of control or safety devices for water heating systems
- F24D19/1009—Arrangement or mounting of control or safety devices for water heating systems for central heating
- F24D19/1039—Arrangement or mounting of control or safety devices for water heating systems for central heating the system uses a heat pump
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/18—Domestic hot-water supply systems using recuperated or waste heat
Abstract
The invention discloses a one-driving-two heat pump heating water supply system and a control method thereof, wherein the control method comprises the following steps: the water flow loop comprises a first water flow loop between the first water tank and the heat pump, a second water flow loop formed between the second water tank and the heat pump, a third water flow loop between the heat pump and the first water tank and a fourth water flow loop formed between the heat pump and the second water tank; valves are arranged on the first water flow loop, the second water flow loop, the third water flow loop and the fourth water flow loop; a hot water outlet pipe; the induction device is arranged in the water tank, and the control device judges whether the second water tank needs to supply hot water or not according to the demand and the water quantity in the second water tank, so that the state of the valve is controlled to switch a water flow loop; the first water tank is preferentially used as a water storage tank, the second water tank is always used as hot water supply, and the first water tank does not participate in heating under the condition that the second water tank can meet the demand. The invention solves the problem that the one-to-two heat pump can not heat as required, and avoids heat waste.
Description
Technical Field
The invention relates to the technical field of heat pumps, in particular to a one-driving-two heat pump heating water supply system and a control method thereof.
Background
In order to meet the demand of hot water, a heat pump machine is generally adopted to drive 2 water tanks, two water tanks are generally connected in parallel and in series in the existing system with one heat pump machine driving 2 water tanks, and when the heat pump machine is started to heat, all water in the 2 water tanks participates in circulation to be heated. However, the demand for hot water is variable, and in places with large changes in passenger flow, such as hotels or residents, the demand for hot water is small when the number of customers is small, and unnecessary waste is caused by all heating. The demand for hot water is large when a plurality of clients live in, the capacity of the water tank is reduced, and the condition of large demand is not met.
Disclosure of Invention
The invention mainly aims to provide a one-driving-two heat pump heating water supply system and a control method thereof, and aims to solve the technical problem of heat waste caused by the fact that a one-driving-two heat pump cannot heat as required.
In order to achieve the purpose, the invention adopts the following technical scheme:
a one-to-two heat pump heating water supply system comprising:
a heat pump;
a water tank including a first water tank and a second water tank;
a water flow circuit, wherein the water flow circuit comprises a first water flow circuit between the first water tank and the heat pump, a second water flow circuit formed between the second water tank and the heat pump, a third water flow circuit between the heat pump and the first water tank, and a fourth water flow circuit formed between the heat pump and the second water tank; valves are arranged on the first water flow loop, the second water flow loop, the third water flow loop and the fourth water flow loop;
the hot water output pipe is used for outputting hot water, one end of the hot water output pipe outputs water, and the other end of the hot water output pipe is connected with the second water tank;
the sensing device is arranged in the water tank and used for sensing the pressure in the water tank and outputting a pressure signal;
the control device acquires a demand signal and the pressure signal, judges the demand according to the demand signal and judges the water quantity in the second water tank according to the pressure signal;
the control device judges whether the second water tank needs to supply hot water according to the required quantity and the water quantity in the second water tank; switching the water flow circuit according to whether to supplement hot water to control the state of the valve;
the first water tank is a water storage tank, the second water tank is used for supplying hot water all the time, and the water in the first water tank does not participate in heating under the condition that the second water tank can meet the demand.
Further, induction system includes first water pressure sensor, second water pressure sensor, first water temperature sensor and second water temperature sensor, first water pressure sensor set up in the first water tank, second water pressure sensor set up in the second water tank, first water temperature sensor set up in the first water tank, second water temperature sensor set up in the second water tank.
Further, the first water flow circuit includes a first water pipe, and the third water flow circuit includes a third water pipe; a first tee joint is arranged on the first water pipe, the first tee joint is connected to the second water tank through a second water pipe to form the second water flow loop, a second tee joint is arranged on the third water pipe, the second tee joint is connected to the second water tank through a fourth water pipe to form the fourth water flow loop, and valves are arranged on the first water pipe, the second water pipe, the third water pipe and the fourth water pipe; the valve comprises a first electric valve and a third electric valve, the first electric valve is arranged in the second water pipe, and the third electric valve is arranged in the fourth water pipe.
Further, the valve further comprises a second electric valve, and the second electric valve is arranged on the first water pipe and is positioned between the first water tank and the first tee joint.
Further, the valve further comprises a fourth electric valve, and the fourth electric valve is arranged in the third water pipe and is positioned between the first water tank and the second tee joint.
Further, the hot water output pipe includes first hot water output pipe and second hot water delivery pipe, first hot water output pipe one end is connected first water tank, the other end pass through the fourth tee bend with second hot water output pipe connection, second hot water output pipe one end with the second water tank is connected, and the other end is used for exporting hot water, first hot water output pipe is provided with fifth electric valve, second hot water output pipe is provided with sixth electric valve, just sixth electric valve set up in the second water tank with between the fourth tee bend.
The invention also discloses a one-driving-two heat pump heating water supply method, which is applied to a one-driving-two heat pump heating water supply system, and the system comprises:
a heat pump;
a water tank including a first water tank and a second water tank;
a water flow circuit, wherein the water flow circuit comprises a first water flow circuit between the first water tank and the heat pump, a second water flow circuit formed between the second water tank and the heat pump, a third water flow circuit between the heat pump and the first water tank, and a fourth water flow circuit formed between the heat pump and the second water tank; valves are arranged on the first water flow loop, the second water flow loop, the third water flow loop and the fourth water flow loop;
the hot water output pipe is used for outputting hot water, one end of the hot water output pipe outputs water, and the other end of the hot water output pipe is connected with the second water tank;
an induction device; the sensing device is arranged in the water tank and used for sensing the pressure in the water tank and outputting a pressure signal;
control device
The control method comprises the following steps:
the control device obtains the pressure of the water in the second water tank sensed by the sensing device;
the control device collects a demand signal and the pressure signal, judges the demand according to the demand signal and judges the water quantity in the second water tank according to the pressure signal;
the control device judges whether the second water tank needs to supply hot water according to the required quantity and the water quantity in the second water tank;
the control device controls the state of the valve according to whether the second water tank needs to be supplemented with water or not so as to switch the water flow loop; the first water tank is a water storage tank, the second water tank is used for supplying hot water all the time, and the water in the first water tank does not participate in heating under the condition that the second water tank can meet the demand.
Further, the first water flow circuit includes a first water pipe, and the third water flow circuit includes a third water pipe; a first tee joint is arranged on the first water pipe, the first tee joint is connected to the second water tank through a second water pipe to form the second water flow loop, a second tee joint is arranged on the third water pipe, the second tee joint is connected to the second water tank through a fourth water pipe to form the fourth water flow loop, and valves are arranged on the first water pipe, the second water pipe, the third water pipe and the fourth water pipe; the valve includes first electric valve and third electric valve, first electric valve set up in the second water pipe, third electric valve set up in the fourth water pipe, controlling means according to the demand with the water yield in the second water tank, judge whether the water tank needs the step of feedwater, include:
judging whether the required quantity is smaller than the water quantity of the second water tank or not;
if the water quantity is less than the preset value, judging that the second water tank does not need to be supplemented with water;
the step of the control device controlling the valve state to switch the water flow circuit according to whether the second water tank is to be replenished with water, includes:
the control device controls the first electrically operated valve and the third electrically operated valve to open.
Further, the first water flow circuit includes a first water pipe, and the third water flow circuit includes a third water pipe; a first tee joint is arranged on the first water pipe, the first tee joint is connected to the second water tank through a second water pipe to form the second water flow loop, a second tee joint is arranged on the third water pipe, the second tee joint is connected to the second water tank through a fourth water pipe to form the fourth water flow loop, and valves are arranged on the first water pipe, the second water pipe, the third water pipe and the fourth water pipe; the valve still includes second electric valve, second electric valve set up in on the first water pipe, and be located first water tank with between the first tee bend spare, controlling means is provided with the limit value under retaining in the first water tank, controlling means according to the demand with the water yield in the second water tank, judge whether the water tank needs the step of feedwater, include:
judging whether the required quantity is more than or equal to the water quantity of the second water tank;
if the water quantity is larger than or equal to the preset value, judging that the second water tank needs to be supplemented with water;
the step of the control device controlling the valve state to switch the water flow circuit according to whether the second water tank needs to be supplemented with water comprises the following steps:
the control device controls the second electrically operated valve and the third electrically operated valve to open.
Furthermore, the valve also comprises a fourth electric valve, and the fourth electric valve is arranged on the third water pipe and is positioned between the first water tank and the second tee joint;
the control device controls the second electric valve and the third electric valve to be opened so that the water in the first water tank flows to the heat pump and then flows to the second water tank, and after the step of supplementing water to the second water tank, the control device comprises:
judging whether the water quantity of the first water tank is smaller than an underwater storage limit value or not;
if the water quantity is smaller than the preset value, the first water tank needs to be supplemented with water;
the step of the control device controlling the valve state to switch the water flow switching circuit according to whether the first water tank needs to be supplemented with water comprises the following steps:
the control device controls the first electric valve to close and the fourth electric valve to open.
Has the advantages that:
the sensing device is arranged in the water tank and used for sensing the pressure in the water tank and outputting a pressure signal, the control device collects a demand signal and the pressure signal, the control device judges the demand according to the demand signal, the control device judges the water quantity in the water tank according to the pressure signal, and the control device judges whether the water tank needs to be supplemented with water or not according to the comparison between the demand and the water quantity in the water tank; the control device switches the water flow loop according to the state of the water supply control valve of the water tank; the control device controls the water flow loop according to the demand quantity, so that the water tank of the one-driving-two water pump is heated as required, the water in the first water tank does not participate in heating under the condition that the demand quantity can be met by the second water tank, the waste of energy caused by the fact that the water in the first water tank flows into the heat pump to be heated under the condition that the demand quantity is small is avoided, the first water tank is preferentially used as a water storage tank, and the first water tank supplies water to the first water tank to meet the water demand under the condition that the demand quantity is large.
Drawings
FIG. 1 is a schematic diagram of a control structure of a one-to-two heat pump heating water supply system according to an embodiment of the present invention;
wherein: 1. a first water pump; 2. a second water pump; 3. a first electrically operated valve; 4. a second electrically operated valve; 5. a third electrically operated valve; 6. a fourth electrically operated valve; 7. a fifth electrically operated valve; 8. a sixth electrically operated valve; 9. a seventh electrically operated valve; 10. an eighth electrically operated valve; 11. a ninth electrically operated valve; 12. a water inlet pipe; 13. a first temperature sensor; 14. a first water tank; 15. a second water tank; 16. a first water pressure sensor; 17. a second water pressure sensor; 18. a first water temperature sensor; 19. a second water temperature sensor; 20. a first hot water output pipe; 21. a heat pump; 22. a second hot water output pipe; 01. a first water pipe; 02. a second water pipe; 03. a third water pipe; 04. a first water pipe.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It is noted that the terms "one end," "another end," "first," "second," and the like are used herein for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Technical solutions between the embodiments of the present invention may be combined with each other, but it is necessary to be able to be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination of technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
Referring to fig. 1, a one-driving-two heat pump heating water supply system according to an embodiment of the present invention includes: the water tank comprises a first water tank 14 and a second water tank 15; the water flow loops comprise a first water flow loop between the first water tank 14 and the heat pump 21, a second water flow loop formed between the second water tank 15 and the heat pump 21, a third water flow loop between the heat pump 21 and the first water tank 14 and a fourth water flow loop formed between the heat pump 21 and the second water tank 15, and valves are arranged on the first water flow loop, the second water flow loop, the third water flow loop and the fourth water flow loop; the hot water output pipe is used for outputting hot water, one end of the hot water output pipe outputs water, the other end of the hot water output pipe is connected with the second water tank 15, the sensing device is arranged in the water tank and used for sensing the pressure in the water tank and outputting a pressure signal; the control device collects a demand signal and a pressure signal, judges the demand according to the demand signal, and judges the water quantity in the water tank according to the pressure signal; the control device judges whether the second water tank needs to be supplemented with water according to the demand and the water quantity in the water tank, and controls the state of the valve to switch the water flow loop according to whether the water tank needs to be supplemented with water or not; wherein, first water tank 14 is as the water storage tank, and second water tank 15 is as hot water supply all the time, and the water in first water tank 14 does not participate in the heating under the condition that second water tank 15 can satisfy the demand.
The sensing device comprises a first water pressure sensor 16, a second water pressure sensor 17, a first water temperature sensor 18 and a second water temperature sensor 19, the first water pressure sensor 16 is arranged on the bottom wall of the first water tank 14, the second water pressure sensor 17 is arranged on the bottom wall of the second water tank 15, the first water temperature sensor 18 is arranged on the side wall of the first water tank 14, and the second water temperature sensor 19 is arranged on the side wall of the second water tank 15.
In this embodiment, the control device not only can control the state of the valve, but also has the functions of collecting signals, converting the signals and comparing the converted signals. First water pressure sensor 16 is used for the pressure of the diapire of perception first water tank 14, and output pressure signal to controlling means, controlling means gathers the pressure signal of first water pressure sensor 16 output, and with pressure signal conversion, and then reachs the water yield of first water tank 14, like this second water pressure sensor 17 is used for the pressure of the diapire of perception second water tank 15, and output pressure signal to controlling means, controlling means gathers the pressure signal of second water pressure sensor 17 output, and with pressure signal conversion, and then obtain the water yield of second water tank 15.
The control device collects demand signals, for example, in a hotel or a residential quarter, the computer outputs the demand signals of water consumption according to check-in registration information, the control device collects the demand signals and judges the demand, and the control device compares the water quantity of the water tank with the demand to control the opening and closing of the valve so as to control the water flow loop.
The control device controls the water flow loop, the first water tank 14 is preferentially taken as a water storage tank, the second water tank 15 is always taken as hot water supply, the water in the first water tank 14 does not participate in heating under the condition that the demand quantity can be met by the second water tank 15, under the condition that the water demand is small, the control device enables the second water tank 15 to heat and supply water through the control valve, the water in the first water tank 14 does not participate in heating, the waste of energy caused by the fact that the water in the first water tank flows into a heat pump to heat under the condition that the demand quantity is small is avoided, under the condition that the water demand is large, the first water tank 14 serves as the water storage tank to supply water for the second water tank 15, and therefore the requirement for water consumption is large.
Referring to fig. 1, in one embodiment, the first water flow circuit includes a first water pipe 01, and the third water flow circuit includes a third water pipe 02; be provided with first tee bend spare on first water pipe 01, first tee bend spare is connected to second water tank 15 through second water pipe 02 and becomes second rivers return circuit, be provided with second tee bend spare on the third water pipe 03, the second tee bend spare is connected to second water tank 15 through fourth water pipe 04 and forms fourth rivers return circuit, first water pipe 01, second water pipe 02, all be provided with the valve on third water pipe 03 and the fourth water pipe 04, the valve includes first electric valve 3 and third electric valve 5, be provided with first electric valve 3 on the second water pipe 02, be provided with third electric valve 5 on the fourth water pipe 04.
The second water flow loop is that water in the second water tank 15 flows to the first tee joint part through the second water pipe 02 and then flows to the heat pump through the first water pipe 01, the fourth water flow loop is that hot water in the heat pump 21 flows to the second tee joint part through the third water pipe 03 and then flows to the second water tank 15 through the third water pipe 03, the side wall of the second water tank 15 is provided with a second water temperature sensor 19, the second water temperature sensor 19 outputs a signal of the water temperature in the second water tank 15, the control device receives the signal of the water temperature in the second water tank 15 output by the second water temperature sensor 19, and the control device is provided with the temperature at which the heat pump 21 needs to heat the water in the second water tank 15.
In the above embodiment, the control device receives the pressure signal of the bottom wall of the second water tank 15 and obtains the water amount of the second water tank 15, the control device compares the required amount with the water amount of the second water tank 15, when the water amount of the second water tank 15 is greater than the required amount, the water in the second water tank 15 meets the required amount, the control device controls the first electric valve 3 and the third electric valve 5 to open, at this time, the water in the second water tank 15 and the heat pump 21 circularly flows, at this time, the water flow loop is the second water flow loop and the fourth water flow loop, the water flow direction is a-B-C-D-E-F, the point B is the first tee joint, the heat pump 21 heats the water in the second water tank 15, the heated hot water flows into the second water tank 15 through the third electric valve 5, the water in the second water tank 15 meets the requirement, the hot water in the second water tank 15 flows into the heat pump 21 through the first electric valve 3, the control device receives a signal of the temperature of the hot water in the second water tank 15 output by the second water temperature sensor 19, the temperature of the hot water in the second water tank 15 is the temperature of the hot water in the heat pump 21, when the temperature of the hot water in the second water tank 15 is lower than the temperature of the heat pump 21 set by the control device and needing to heat the water in the second water tank 15, the control device controls the heat pump 21 to heat, otherwise, the control device controls the heat pump 21 to stop heating.
Under the condition that the water in the second water tank 15 meets the demand, only the water in the second water tank 15 is heated, the water in the first water tank 14 does not participate in heating, and does not flow, so that the waste of resource energy caused by the fact that the water in the first water tank 14 and the water in the second water tank 15 are heated when the demand is small is avoided.
Referring to fig. 1, in one embodiment, the valve further includes a second electrically operated valve 4, the second electrically operated valve 4 is disposed on the first water pipe 01, and the second valve 4 is located between the first water tank 14 and the first tee joint.
The diapire of second water tank 15 is provided with second water pressure sensor 17, and second water pressure sensor 17 outputs the pressure signal of second water tank 15 diapire, is provided with the limit amount on the ponding of second water tank 15 in the controlling means, and the lateral wall of second water tank 15 is provided with second water temperature sensor 19, and the signal of the temperature of water in second water tank 15 is exported to second water temperature sensor 19, and controlling means receives the signal of the temperature of water in second water tank 15 is exported to second water temperature sensor 19, and controlling means is provided with the temperature that heat pump 21 needs the inside water heating of second water tank 15.
In the above embodiment, the control device receives the pressure signal of the bottom wall of the second water tank 15, determines the water quantity of the second water tank 15, compares the required quantity with the water quantity of the second water tank 15, when the water quantity of the second water tank 15 is less than or equal to the required quantity, the water quantity of the second water tank 15 cannot meet the required quantity, and at the same time, the control device determines that the water quantity of the second water tank 15 does not reach the upper limit quantity of water storage of the second water tank 15, the control device controls the second electric valve 4 and the third electric valve 5 to be opened, the water flow loops at this time are the first water flow loop and the fourth water flow loop, the water flow direction is H-B-C-D-E-F, wherein the point B is the first three-way member, the second valve 4 is located between the first water tank 14 and the first three-way member, and is used for controlling the water flow in the first water tank 14 to the heat pump 21 without participating in the control of the second water flow loop, the water in the first water tank 14 flows into the heat pump 21 through the second electric valve 4, the heat pump 21 heats the water, the heated water flows into the second water tank 15 through the third electric valve 5, meanwhile, the control device receives a signal of the temperature of the hot water in the second water tank 15 output by the second water temperature sensor 19, the temperature of the hot water in the second water tank 15 is the temperature of the hot water in the heat pump 21, when the temperature of the hot water in the second water tank 15, which is lower than the temperature of the heat pump 21 set by the control device and needs to heat the water in the second water tank 15, the control device controls the heat pump 21 to heat, otherwise, the heat pump 21 is controlled to stop heating. When the water in the second water tank 15 is not full and the quantity of the second water tank 15 does not reach the upper limit, the water in the first water tank 14 is heated by the heat pump 21 and flows into the second water tank 15, and then the second water tank 15 outputs hot water. When the water in the second water tank 15 reaches the upper limit of the water storage, the control device controls to close the second electric valve 4, open the first electric valve 3, enter the second water flow loop and the fourth water flow loop, and the water in the second water tank 15 and the heat pump 21 circularly flows.
When the water quantity of the second water tank 15 cannot meet the requirement and the water quantity of the second water tank 15 does not reach the water storage upper limit, the water in the first water tank 14 flows into the heat pump 21 to be heated and then flows into the second water tank 15 instead of heating the water in the first water tank 14, because when the water quantity of the second water tank 15 reaches the water storage upper limit, the control device controls the water in the first water tank 14 not to flow into the heat pump 21 any more, and if the water in the first water tank 14 is heated, the water in the first water tank 14 which does not flow into the second water tank 15 slowly cools down to cause waste; after the water quantity of the second water tank 15 reaches the water storage upper limit, water circulation flow in the second water tank 15 and the heat pump 21 is carried out, the problem that the water of the second water tank 15 is cooled and cannot meet the requirement is avoided, at the moment, if the temperature of the water flowing into the heat pump 21 is higher than a set value, the control device controls the heat pump 21 to stop heating and then to flow into the second water tank 15, the water temperature can be guaranteed to meet the requirement, and resource waste is caused by blind heating.
In one embodiment, the valve further comprises a fourth electrically operated valve 6, and the third water pipe 03 is provided with the fourth electrically operated valve 6, and the fourth electrically operated valve 6 is located between the first water tank 14 and the second three-way member.
The second electrically operated valve 4 is disposed on the first water pipe 01 and between the first water tank 14 and the first three-way member.
The diapire of first water tank 14 is provided with first water pressure sensor 16, and the lateral wall is provided with first water temperature sensor 18, and the lateral wall of second water tank 15 is provided with second water temperature sensor 19, and first water pressure sensor 16 outputs the pressure signal of first water tank 14, is provided with the retaining lower limit of first water tank 1 in the controlling means.
In the above embodiment, the first water tank 14 is used as a water storage tank, when the second water tank 15 cannot meet the requirement and the upper limit of the stored water is not reached, the first water tank 14 supplies water to the second water tank 15, the water is heated by the heat pump 21 and flows into the second water tank 15, when the second water tank 15 reaches the upper limit and the temperature is not lower than the set value and the amount of water in the first water tank 14 is not lower than the lower limit of the stored water, the control device closes the third electric valve 5 and opens the fourth electric valve 6, the current loops are the first current loop and the third current loop, the current direction is H-B-C-D-E-M-L, point E is the second tee, the fourth electric valve 6 is located between the first water tank 14 and the second tee, the control of the fourth current loop is not involved, the water in the first water tank 14 and the heat pump 21 circulates and flows, the heat pump 21 heats the water in the first water tank 14; at this moment, the water in the first water tank 14 is heated, because the second water tank 15 does not meet the demand, the first water tank 14 is required to provide water for the water, and when the water in the first water tank 14 and the heat pump 21 circularly flows, the control device collects the temperature signal and the pressure signal of the second water tank 15 at all times, the water temperature in the second water tank 15 is not lower than a set value at this moment, the water quantity is not lower than an upper limit of water storage, namely the water in the second water tank 15 does not need to be heated and hot water does not need to be supplemented, the water in the first water tank 14 is heated at this moment, and the problem that when the water needs to be supplemented to the second water tank 15, the heat pump 21 cannot heat the water to the set temperature and cannot meet the demand is solved.
When the water in the first water tank 14 and the heat pump 21 flows in a circulating manner, the control device collects the temperature signal and the pressure signal of the second water tank 15 all the time, at the moment, the water temperature in the second water tank 15 is not lower than a set value, the water amount is not lower than an upper limit of water storage, when one water does not reach the set value, the control device controls the stop of the water circulating flow in the first water tank 14 and the heat pump 21 and switches the water circulating flow to the second water flow loop and the fourth water flow loop, so that the heating of the first water tank 14 by the heat pump 21 is limited, too much energy loss and resource waste can not be caused, in addition, the water amount and the water temperature in the second water tank 15 can be met, and the requirements are met.
The first water tank 14 is connected with a water inlet pipe 12, one end of the water inlet pipe is provided with a ninth valve 11 and a first water pump 1 for water inlet, the middle position is provided with a third tee joint part, the water inlet pipe 12 between the third tee joint part and the first water pump 1 is provided with a water inlet temperature device 13, the other end of the water inlet pipe 12 is connected to a fourth water pipe 04 through a fifth tee joint part, a third electric valve 5 is positioned between the second tee joint part and the fifth tee joint part, the water inlet pipe 12 is connected to a third water pipe 03 through a sixth tee joint part, the water pipe between the sixth tee joint part and the third tee joint part is provided with a seventh electric valve 9, the water pipe between the fifth tee joint part and the third tee joint part is provided with an eighth electric valve 10, a second water pump 2 is arranged between the first tee joint part and a heat pump 21, the first water tank 14 is communicated with the second water tank 15 through a water pipe NO, the control device is provided with the upper limit of the first water tank 14, and the water level of the first tank 14 is lower than the water pipe NO when the first tank 14 reaches the upper limit of the water storage.
In the above embodiment, when the water in the second water tank 15 does not meet the requirement and does not reach the upper limit of the water storage, the first water tank 14 serves as a water storage tank to provide water for the second water tank 15, the water amount of the first water tank 14 is reduced and water needs to be provided for the first water tank 14, when the water in the first water tank 14 is lower than the lower limit of the water storage, the control device controls the ninth electric valve 11 to open, the first water pump 1 is started to supply water, the first temperature sensor 13 senses the temperature of the water inlet pipe and outputs a temperature signal, the control device judges whether the temperature of the water inlet pipe reaches the temperature set by the second water tank 15 according to the temperature signal, if the temperature of the water inlet pipe reaches the set temperature, the eighth electric valve 10 is opened and is directly connected to the second water tank 15 without heating, at this time, the water flow direction is J-K-M-E-F, wherein K is a third tee joint, M is a sixth tee joint, and E is a second tee joint, f, a fourth tee piece; for example, the high-temperature hot spring water can be directly used, when the water in the second water tank is full, the water directly flows into the first water tank 14 through the water pipe NO between the first water tank 14 and the second water tank 15, and the water in the first water tank 14 reaches the water storage upper limit of the first water tank 14, the control device controls the first water pump 12 to stop water inlet; when the first water tank 14 reaches the upper limit of the water storage, the water surface of the first water tank 14 is lower than the water pipe NO, so that the water in the first water tank is prevented from directly flowing into the second water tank 15 through the water pipe NO; if the set temperature is not reached, the control device controls the seventh electric valve to be opened, and the water flows into the first water tank 14 to store water for later use, wherein the water flow direction is J-K-M-L. The water in the first water tank 14 enters the heat pump 21 through the second water pump 2.
In an embodiment, the one-driving-two heat pump heating water supply system further includes a hot water output pipe, the hot water output pipe includes a first hot water output pipe 20 and a second hot water output pipe 22, one end of the first hot water output pipe 20 is connected to the first water tank 14, the other end is connected to the second hot water output pipe 22 through a fourth tee, one end of the second hot water output pipe 22 is connected to the second water tank 15, and the other end is used for outputting hot water, the first hot water output pipe 20 is provided with the fifth electric valve 7, the second hot water output pipe 22 is provided with the sixth electric valve 8, and the sixth electric valve 8 is disposed between the second water tank 14 and the fourth tee.
The control device is internally provided with a second water tank 15, a water storage lower limit and a water supply temperature of the first water tank 14.
In the above embodiment, in a hot spring vacation area, water of a hot spring flows into the first water tank 14 or the second water tank 15 through the water inlet pipe 12, or flows into the first water tank 14 from the second water tank 15, when water needs to be used in the downstream, the control device controls the valve to flow downstream according to the water quantity and the water temperature of the water tank, water is preferentially supplied to the downstream from the first water tank 14, when the water in the first water tank 14 is higher than the set temperature and higher than the lower limit of water storage, the control device controls the fifth electric valve 7 to be opened, the water in the first water tank 14 flows downwards, and when the water in the first water tank 14 is lower than the lower limit of water storage, the first water tank 14 needs to be supplied with the water inlet pipe 12; the first water tank 14 does not meet the conditions, the water in the second water tank 15 meets the conditions that the temperature is higher than the set temperature and the water quantity meets the water storage lower limit, the control device controls the sixth electric valve 8 to be opened, the water in the second water tank flows to the downstream, and the water flow direction is G-R at the moment; when the temperature of the water in the second water tank 15 is lower than a set value, the water in the second water tank 15 and the heat pump 21 circularly flows, when the water in the second water tank 15 is lower than the upper limit of the water storage, the first water tank 14 supplies water to the second water tank 15, the water in the second water tank 15 is higher than the set temperature, the water amount is higher than the lower limit of the water storage of the second water tank 15, and the water flow direction is I-R at the moment. The supply of required water can be met on the premise of meeting downstream water supply.
A method for heating and supplying water by a two-by-one heat pump according to an embodiment of the present invention is applied to a two-by-one heat pump heating and supplying water system in the above embodiment, and the two-by-one heat pump heating and supplying water system includes: the water tank comprises a first water tank 14 and a second water tank 15; the water flow loops comprise a first water flow loop between the first water tank 14 and the heat pump 21, a second water flow loop formed between the second water tank 15 and the heat pump 21, a third water flow loop between the heat pump 21 and the first water tank 14 and a fourth water flow loop formed between the heat pump 21 and the second water tank 15, and valves are arranged on the first water flow loop, the second water flow loop, the third water flow loop and the fourth water flow loop; the hot water output pipe is used for outputting hot water, one end of the hot water output pipe outputs water, the other end of the hot water output pipe is connected with the second water tank 15, the sensing device is arranged in the water tank and used for sensing the pressure in the water tank and outputting a pressure signal; the control method comprises the following steps:
the control device acquires the pressure of the water in the induction device induction water tank;
the control device collects the demand signal and the pressure signal, judges the demand according to the demand signal and judges the water quantity in the second water tank 15 according to the pressure signal;
the control device judges whether the second water tank needs to supply hot water according to the required quantity and the water quantity in the second water tank 15;
the control device switches the water flow loop according to whether the second water tank 15 needs to be supplemented with water or not; wherein, first water tank 14 is as the water storage tank, and second water tank 15 is as hot water supply all the time, and the water in first water tank 14 does not participate in the heating under the condition that second water tank 15 can satisfy the demand.
Before the control device judges whether the second water tank 15 needs to be supplemented with water according to the comparison between the demand signal and the pressure signal, the control device judges that the demand of hot water is less than that of the second water tank 15 according to the comparison between the demand signal and the pressure signal, and the valve is in a closed state.
In the above embodiment, the control device controls the water flow loop by comparing the required amount of water with the water storage amount of the second water tank 15, and the control valve switches the water flow loop, so that the first water tank 14 is preferentially used as a water storage tank, the second water tank 15 is always used as hot water supply, the water in the first water tank 14 does not participate in heating when the second water tank 15 can meet the required amount, and the control device controls the second water tank 15 to heat and supply water through the control valve under the condition of small required amount of water, and the water in the first water tank 14 does not participate in heating, thereby avoiding energy waste caused by the fact that the water in the first water tank flows into a heat pump to heat under the condition of small required amount of water, and the first water tank 14 serves as a water storage tank to supply water for the second water tank 15 under the condition of large required amount of water, so as to meet the large required amount of water.
In one embodiment, the first water flow circuit includes a first water pipe 01, and the third water flow circuit includes a third water pipe 02; be provided with first tee bend spare on the first water pipe, first tee bend spare is connected to second water tank 15 through second water pipe 02 and becomes second rivers return circuit, be provided with second tee bend spare on the third water pipe 03, the second tee bend spare is connected to second water tank 15 through fourth water pipe 04 and forms fourth rivers return circuit, first water pipe 01, second water pipe 02, all be provided with the valve on third water pipe 03 and the fourth water pipe 04, the valve includes first electric valve 3 and third electric valve 5, be provided with first electric valve 3 on the second water pipe 02, be provided with third electric valve 5 on the fourth water pipe 04.
The water in the second water flow loop passes through the second water pipe 02 to the first tee piece and then flows to the heat pump through the first water pipe 01, the hot water in the heat pump 21 passes through the third water pipe 03 to the second tee piece and then flows to the second water tank 15 through the third water pipe 03, the side wall of the second water tank 15 is provided with a second water temperature sensor 19, the second water temperature sensor 19 outputs a signal of the water temperature in the second water tank 15, the control device receives the signal of the water temperature in the second water tank 15 output by the second water temperature sensor 19, and the control device is provided with the temperature at which the heat pump 21 needs to heat the water in the second water tank 15.
The step of the control device judging whether the second water tank 15 needs to be supplied with water according to the comparison between the required quantity and the quantity of water in the second water tank 15 includes:
judging whether the required quantity is less than the quantity of water in the second water tank 15;
if the water content is less than the preset value, the second water tank 15 is judged not to need to be supplemented with water;
the step of the control device controlling the valve state to switch the water flow circuit according to whether the second water tank 15 needs to be supplemented with water comprises the following steps:
the control device controls the first electric valve 3 and the third electric valve 5 to be opened, and the second water tank 15 and the heat pump 21 circulate.
In the above embodiment, the control device receives the pressure signal of the bottom wall of the second water tank 15 and obtains the water amount of the second water tank 15, the control device compares the required amount with the water amount of the second water tank 15, when the water amount of the second water tank 15 is greater than the required amount, the water in the second water tank 15 meets the required amount, the control device controls the first electric valve 3 and the third electric valve 5 to open, at this time, the water in the second water tank 15 and the heat pump 21 circularly flows, at this time, the water flow loop is the second water flow loop and the fourth water flow loop, the water flow direction is a-B-C-D-E-F, the heat pump 21 heats the water in the second water tank 15, the water flows into the second water tank 15 through the third electric valve 5, the water in the second water tank 15 meets the requirement, the water in the second water tank 15 flows into the heat pump 21 through the first electric valve 3, the control device receives the signal of the water temperature of the hot water in the second water tank 15 output by the second water temperature sensor 19, the temperature of the hot water in the second water tank 15 is the temperature of the hot water in the heat pump 21, and when the temperature of the hot water in the second water tank 15 is lower than the temperature of the water in the second water tank 15, which is required to be heated by the heat pump 21 set by the control device, the control device controls the heat pump 21 to heat.
Under the condition that the water in the second water tank 15 meets the demand, only the water in the second water tank 15 is heated, the water in the first water tank 14 does not participate in heating, and does not flow, so that the waste of resource energy caused by the fact that the water in the first water tank 14 and the water in the second water tank 15 are heated when the demand is small is avoided.
In one embodiment, the first water flow circuit includes a first water pipe 01, and the third water flow circuit includes a third water pipe 02; a first tee joint is arranged on the first water pipe, the first tee joint is connected to a second water tank 15 through a second water pipe 02 to form a second water flow loop, a second tee joint is arranged on a third water pipe 03, a water storage lower limit of the first water tank 1 is arranged in the control device, the second tee joint is connected to the second water tank 15 through a fourth water pipe 04 to form a fourth water flow loop, valves are arranged on the first water pipe 01, the second water pipe 02, the third water pipe 03 and the fourth water pipe 04, the valves further comprise second electric valves 4, a second electric valve 4 is arranged on the first water pipe 01, and the second electric valves 4 are located between the first water tank 14 and the first tee joint; the diapire of second water tank 15 is provided with second water pressure sensor 17, and second water pressure sensor 17 outputs the pressure signal of second water tank 15 diapire, is provided with the limit amount on the ponding of second water tank 15 in the controlling means, and the lateral wall of second water tank 15 is provided with second water temperature sensor 19, and the signal of the temperature of water in second water tank 15 is exported to second water temperature sensor 19, and controlling means receives the signal of the temperature of water in second water tank 15 is exported to second water temperature sensor 19, and controlling means is provided with the temperature that heat pump 21 needs the inside water heating of second water tank 15.
The step of the control device judging whether the second water tank 15 needs to be supplied with water according to the comparison between the required quantity and the quantity of water in the water tank comprises the following steps:
judging whether the required quantity is more than or equal to the water quantity of the second water tank 15;
if the water content is larger than or equal to the preset value, the second water tank 15 is judged to need to be supplemented with water;
the step of the control device switching the water flow circuit according to whether the second water tank 15 needs to be supplemented with the water control valve state comprises the following steps:
the control device controls the second electrically operated valve 4 and the third electrically operated valve 5 to open.
Before the step of the control device switching the water flow circuit according to whether the second water tank 15 needs to be supplemented with the water control valve state, the control device judges whether the water quantity of the first water tank 14 is higher than the water storage lower limit value; and if the pressure is higher than the preset pressure, the second electric valve 4 and the third electric valve 5 are controlled to be opened.
In the above embodiment, the control device determines the required amount and determines the amount of water in the second water tank 15, the control device compares the required amount with the amount of water in the second water tank 15, when the amount of water in the second water tank 15 is less than or equal to the required amount, the amount of water in the second water tank 15 cannot meet the required amount, the control device determines that the amount of water in the second water tank 15 does not reach the upper limit of water storage of the second water tank 15, the amount of water in the first water tank 14 is higher than the lower limit of water storage, the control device controls the second electric valve 4 and the third electric valve 5 to open, the water flow loops at this time are the first water flow loop and the fourth water flow loop, the water flow direction is H-B-C-D-E-F, the water in the first water tank 14 flows into the heat pump 21 through the second electric valve 4, the heat pump 21 heats the water, the heated water flows into the second water tank 15 through the third electric valve 5, the second tank 14 is supplied with hot water. When the water in the second water tank 15 is not full and the quantity of the second water tank 15 does not reach the upper limit, the water in the first water tank 14 is heated by the heat pump 21 and flows into the second water tank 15, and then the second water tank 15 outputs hot water. When the water in the second water tank 15 reaches the upper limit of the water storage, the control device controls to close the second electric valve 4, open the first electric valve 3, enter the second water flow loop and the fourth water flow loop, and the water in the second water tank 15 and the heat pump 21 circularly flows.
When the water quantity of the second water tank 15 cannot meet the requirement and the water quantity of the second water tank 15 does not reach the water storage upper limit, the water in the first water tank 14 flows into the heat pump 21 to be heated and then flows into the second water tank 15 instead of heating the water in the first water tank 14, because when the water quantity of the second water tank 15 reaches the water storage upper limit, the control device controls the water in the first water tank 14 not to flow into the heat pump 21 any more, and if the water in the first water tank 14 is heated, the water in the first water tank 14 which does not flow into the second water tank 15 slowly cools down to cause waste; after the water quantity of the second water tank 15 reaches the water storage upper limit, water circulation flow in the second water tank 15 and the heat pump 21 is carried out, the problem that the water of the second water tank 15 is cooled and cannot meet the requirement is avoided, at the moment, if the temperature of the water flowing into the heat pump 21 is higher than a set value, the control device controls the heat pump 21 to stop heating and then to flow into the second water tank 15, the water temperature can be guaranteed to meet the requirement, and resource waste is caused by blind heating.
In one embodiment, the third water pipe 03 is provided with a fourth electrically operated valve 6, and the fourth electrically operated valve 6 is located between the first water tank 14 and the second tee.
The second electrically operated valve 4 is disposed on the first water pipe 01 and between the first water tank 14 and the first three-way member.
The bottom wall of the first water tank 14 is provided with a first water pressure sensor 16, the side wall is provided with a first water temperature sensor 18, the side wall of the second water tank 15 is provided with a second water temperature sensor 19, and the first water pressure sensor 16 outputs a pressure signal of the first water tank 14.
The control device controls the second electric valve and the third electric valve to be opened so that the water in the first water tank flows to the heat pump and then flows to the second water tank, and after the step of supplying water to the second water tank, the control device comprises:
judging whether the water quantity of the first water tank 14 is smaller than the water storage limit value;
if so, determining that the first water tank 14 does not need to be supplemented with water;
the step of the control device switching the water flow circuit according to whether the first water tank 14 needs to be supplemented with the water control valve state comprises the following steps:
the control device controls the first electric valve 3 to be closed and the fourth electric valve 6 to be opened.
When the water in the first water tank 14 is lower than the water storage lower limit, the control device outputs an alarm signal that the water amount in the first water tank 14 is insufficient.
In the above embodiment, the first water tank 14 is used as a water storage tank, when the second water tank 15 cannot meet the requirement and the water storage upper limit is not reached, the first water tank 14 supplies water to the second water tank 15 and heats the water to flow into the second water tank 15 through the heat pump 21, when the second water tank 15 reaches the upper limit, the temperature is not lower than the set value and the water amount in the first water tank 14 is not lower than the water storage lower limit, the control device closes the third electric valve 5 and opens the fourth electric valve 6, the current loops at this time are the first current loop and the third current loop, the current direction is H-B-C-D-E-M-L, the water in the first water tank 14 and the heat pump 21 circularly flows, and the heat pump 21 heats the water in the first water tank 14; at this moment, the water in the first water tank 14 is heated, because the second water tank 15 does not meet the demand, the first water tank 14 is required to provide water for the water, and when the water in the first water tank 14 and the heat pump 21 circularly flows, the control device collects the temperature signal and the pressure signal of the second water tank 15 at all times, the water temperature in the second water tank 15 is not lower than a set value at this moment, the water quantity is not lower than an upper limit of water storage, namely the water in the second water tank 15 does not need to be heated and hot water does not need to be supplemented, the water in the first water tank 14 is heated at this moment, and the problem that when the water needs to be supplemented to the second water tank 15, the heat pump 21 cannot heat the water to the set temperature and cannot meet the demand is solved.
When the water in the first water tank 14 and the heat pump 21 flows in a circulating manner, the control device collects the temperature signal and the pressure signal of the second water tank 15 all the time, at the moment, the water temperature in the second water tank 15 is not lower than a set value, the water amount is not lower than an upper limit of water storage, when one water does not reach the set value, the control device controls the stop of the water circulating flow in the first water tank 14 and the heat pump 21 and switches the water circulating flow to the second water flow loop and the fourth water flow loop, so that the heating of the first water tank 14 by the heat pump 21 is limited, too much energy loss and resource waste can not be caused, in addition, the water amount and the water temperature in the second water tank 15 can be met, and the requirements are met.
In one embodiment, when the control device determines that the demand for hot water is greater than the capacity of the second tank 15 based on the comparison of the demand signal and the pressure signal, the control device controls the water flow circuit, including:
judging whether the water quantity in the second water tank is larger than the upper limit water quantity of the second water tank 15;
if the water content is larger than or equal to the preset value, the second water tank 15 is judged not to need to be supplemented with water;
the step of the control device switching the water flow circuit according to whether the second water tank 15 needs to be supplemented with the water control valve state comprises the following steps:
the control device controls the first electrically operated valve 3 and the third electrically operated valve 5 to open.
In the above embodiment, the control device receives the pressure signal of the bottom wall of the second water tank 15 and obtains the water amount of the second water tank 15, when the water amount in the second water tank 15 is greater than the upper limit water amount of the second water tank 15, the second water tank 15 does not need to be supplemented with water, the control device controls the first electric valve 3 and the third electric valve 5 to be opened, at this time, the water in the second water tank 15 and the heat pump 21 circularly flows, at this time, the water flow loops are the second water flow loop and the fourth water flow loop, and the water flow direction is a-B-C-D-E-F.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. A one drags two heat pump heating water supply system, its characterized in that includes:
a heat pump;
a water tank including a first water tank and a second water tank;
a water flow circuit, wherein the water flow circuit comprises a first water flow circuit between the first water tank and the heat pump, a second water flow circuit formed between the second water tank and the heat pump, a third water flow circuit between the heat pump and the first water tank, and a fourth water flow circuit formed between the heat pump and the second water tank; valves are arranged on the first water flow loop, the second water flow loop, the third water flow loop and the fourth water flow loop;
the hot water output pipe is used for outputting hot water, one end of the hot water output pipe outputs water, and the other end of the hot water output pipe is connected with the second water tank;
the sensing device is arranged in the water tank and used for sensing the pressure in the water tank and outputting a pressure signal;
the control device acquires a demand signal and the pressure signal, judges the demand according to the demand signal and judges the water quantity in the water tank according to the pressure signal;
the control device judges whether the second water tank needs to supply hot water according to the required quantity and the water quantity in the second water tank; switching the water flow circuit according to whether to supplement hot water to control the state of the valve;
the first water tank is a water storage tank, the second water tank is used for supplying hot water all the time, and the water in the first water tank does not participate in heating under the condition that the second water tank can meet the demand.
2. The system of claim 1, wherein the sensing device comprises a first water pressure sensor disposed in the first tank, a second water pressure sensor disposed in the second tank, a first water temperature sensor disposed in the first tank, and a second water temperature sensor disposed in the second tank.
3. A one-driven-two heat pump heating water supply system as claimed in claim 1,
the first water flow circuit comprises a first water pipe and the third water flow circuit comprises a third water pipe;
a first tee joint is arranged on the first water pipe, the first tee joint is connected to the second water tank through a second water pipe to form the second water flow loop, a second tee joint is arranged on the third water pipe, the second tee joint is connected to the second water tank through a fourth water pipe to form the fourth water flow loop, and valves are arranged on the first water pipe, the second water pipe, the third water pipe and the fourth water pipe; the valve comprises a first electric valve and a third electric valve, the first electric valve is arranged in the second water pipe, and the third electric valve is arranged in the fourth water pipe.
4. A one-driven-two heat pump heating water supply system as claimed in claim 3, wherein the valve further comprises a second electrically operated valve disposed on the first water line between the first water tank and the first tee.
5. The one-driven-two heat pump heating water supply system of claim 4, wherein the valve further comprises a fourth electrically operated valve disposed in the third water line between the first water tank and the second tee.
6. The one-driving-two heat pump heating water supply system according to claim 3, wherein the hot water output pipe comprises a first hot water output pipe and a second hot water output pipe, one end of the first hot water output pipe is connected to the first water tank, the other end of the first hot water output pipe is connected to the second hot water output pipe through a fourth tee, one end of the second hot water output pipe is connected to the second water tank, the other end of the second hot water output pipe is used for outputting hot water, the first hot water output pipe is provided with a fifth electric valve, the second hot water output pipe is provided with a sixth electric valve, and the sixth electric valve is arranged between the second water tank and the fourth tee.
7. A one-driving-two heat pump heating water supply method is characterized by being applied to a one-driving-two heat pump heating water supply system, and the system comprises:
a heat pump;
a water tank including a first water tank and a second water tank;
a water flow circuit, wherein the water flow circuit comprises a first water flow circuit between the first water tank and the heat pump, a second water flow circuit formed between the second water tank and the heat pump, a third water flow circuit between the heat pump and the first water tank, and a fourth water flow circuit formed between the heat pump and the second water tank; valves are arranged on the first water flow loop, the second water flow loop, the third water flow loop and the fourth water flow loop;
the hot water output pipe is used for outputting hot water, one end of the hot water output pipe outputs water, and the other end of the hot water output pipe is connected with the second water tank;
the sensing device is arranged in the water tank and used for sensing the pressure in the water tank and outputting a pressure signal;
a control device;
the control method comprises the following steps:
the control device obtains the pressure of the water in the second water tank sensed by the sensing device;
the control device collects a demand signal and the pressure signal, judges the demand according to the demand signal and judges the water quantity in the second water tank according to the pressure signal;
the control device judges whether the second water tank needs to supply hot water according to the required quantity and the water quantity in the second water tank;
the control device controls the state of the valve to switch the water flow loop according to whether the second water tank needs to be supplemented with water or not; the first water tank is a water storage tank, the second water tank is used for supplying hot water all the time, and the water in the first water tank does not participate in heating under the condition that the second water tank can meet the demand.
8. The one-driven-two heat pump heating water supply method according to claim 7, wherein the first water flow circuit includes a first water pipe, and the third water flow circuit includes a third water pipe; a first tee joint is arranged on the first water pipe, the first tee joint is connected to the second water tank through a second water pipe to form the second water flow loop, a second tee joint is arranged on the third water pipe, the second tee joint is connected to the second water tank through a fourth water pipe to form the fourth water flow loop, and valves are arranged on the first water pipe, the second water pipe, the third water pipe and the fourth water pipe; the valve includes first electric valve and third electric valve, first electric valve set up in the second water pipe, third electric valve set up in the fourth water pipe, controlling means according to the demand with the water yield in the second water tank, judge whether the water tank needs the step of feedwater, include:
judging whether the required quantity is smaller than the water quantity of the second water tank or not;
if the water quantity is less than the preset value, judging that the second water tank does not need to be supplemented with water;
the step of the control device controlling the valve state to switch the water flow circuit according to whether the second water tank is to be replenished with water, includes:
the control device controls the first electrically operated valve and the third electrically operated valve to open.
9. The one-driven-two heat pump heating water supply method according to claim 7, wherein the first water flow circuit includes a first water pipe, and the third water flow circuit includes a third water pipe; a first tee joint is arranged on the first water pipe, the first tee joint is connected to the second water tank through a second water pipe to form the second water flow loop, a second tee joint is arranged on the third water pipe, the second tee joint is connected to the second water tank through a fourth water pipe to form the fourth water flow loop, and valves are arranged on the first water pipe, the second water pipe, the third water pipe and the fourth water pipe; the valve still includes second electric valve, second electric valve set up in on the first water pipe, and be located first water tank with between the first tee bend spare, controlling means is provided with the limit value under retaining in the first water tank, controlling means according to the demand with the water yield in the second water tank, judge whether the water tank needs the step of feedwater, include:
judging whether the required quantity is more than or equal to the water quantity of the second water tank;
if the water quantity is larger than or equal to the preset value, judging that the second water tank needs to be supplemented with water;
the step of the control device controlling the valve state to switch the water flow circuit according to whether the second water tank is to be replenished with water, includes:
the control device controls the second electrically operated valve and the third electrically operated valve to open.
10. The method of claim 9, wherein the valve further comprises a fourth electrically operated valve disposed in the third water line between the first tank and the second tee;
the control device controls the second electric valve and the third electric valve to be opened so that the water in the first water tank flows to the heat pump and then flows to the second water tank, and after the step of supplementing water to the second water tank, the control device comprises:
judging whether the water quantity of the first water tank is smaller than an underwater storage limit value or not;
if the water quantity is smaller than the preset value, the first water tank is judged to need to be supplemented with water;
the step of the control device controlling the valve state to switch the water flow circuit according to whether the first water tank is to be replenished with water, comprising:
the control device controls the first electric valve to close and the fourth electric valve to open.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110511421.0A CN113137657A (en) | 2021-05-11 | 2021-05-11 | One-driving-two heat pump heating water supply system and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110511421.0A CN113137657A (en) | 2021-05-11 | 2021-05-11 | One-driving-two heat pump heating water supply system and control method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113137657A true CN113137657A (en) | 2021-07-20 |
Family
ID=76817746
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110511421.0A Pending CN113137657A (en) | 2021-05-11 | 2021-05-11 | One-driving-two heat pump heating water supply system and control method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113137657A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1450110A2 (en) * | 2003-02-20 | 2004-08-25 | Denso Corporation | Hot water supply system with storing tank |
| CN2886434Y (en) * | 2006-05-12 | 2007-04-04 | 上海海事大学 | Weatherable dual-tank hot water supply system for solar water heater |
| CN201954660U (en) * | 2010-11-30 | 2011-08-31 | 罗益龙 | Double water tank normal pressure water supply and heat accumulation solar hot water unit |
| CN102235715A (en) * | 2010-05-07 | 2011-11-09 | 上海海洋大学 | Solar water heating system with double water tanks |
| CN103591636A (en) * | 2013-10-24 | 2014-02-19 | 周裕佳 | Double-tank heat exchange and water supply system and method for controlling same |
| CN204678683U (en) * | 2015-06-10 | 2015-09-30 | 江苏天舒电器有限公司 | An a kind of heating type heat pump hot water |
| CN109268925A (en) * | 2018-11-01 | 2019-01-25 | 青岛太和环境工程有限公司 | A kind of concentrated hot watersystem based on solar energy and air source heat pump |
| US20190293303A1 (en) * | 2018-03-20 | 2019-09-26 | Yanda Zhang | Intelligent hot water heating system with stratified temperature-heating control storage tank |
| CN211204210U (en) * | 2019-11-29 | 2020-08-07 | 大连鸿鼎热能技术有限公司 | Energy-conserving constant voltage stable form life hot water air source heat pump system |
-
2021
- 2021-05-11 CN CN202110511421.0A patent/CN113137657A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1450110A2 (en) * | 2003-02-20 | 2004-08-25 | Denso Corporation | Hot water supply system with storing tank |
| CN2886434Y (en) * | 2006-05-12 | 2007-04-04 | 上海海事大学 | Weatherable dual-tank hot water supply system for solar water heater |
| CN102235715A (en) * | 2010-05-07 | 2011-11-09 | 上海海洋大学 | Solar water heating system with double water tanks |
| CN201954660U (en) * | 2010-11-30 | 2011-08-31 | 罗益龙 | Double water tank normal pressure water supply and heat accumulation solar hot water unit |
| CN103591636A (en) * | 2013-10-24 | 2014-02-19 | 周裕佳 | Double-tank heat exchange and water supply system and method for controlling same |
| CN204678683U (en) * | 2015-06-10 | 2015-09-30 | 江苏天舒电器有限公司 | An a kind of heating type heat pump hot water |
| US20190293303A1 (en) * | 2018-03-20 | 2019-09-26 | Yanda Zhang | Intelligent hot water heating system with stratified temperature-heating control storage tank |
| CN109268925A (en) * | 2018-11-01 | 2019-01-25 | 青岛太和环境工程有限公司 | A kind of concentrated hot watersystem based on solar energy and air source heat pump |
| CN211204210U (en) * | 2019-11-29 | 2020-08-07 | 大连鸿鼎热能技术有限公司 | Energy-conserving constant voltage stable form life hot water air source heat pump system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107612422A (en) | A kind of hot temperature difference electricity generation device of solar energy liquid | |
| CN108361998A (en) | The control method of Teat pump boiler | |
| EP3043122A1 (en) | Heat storage system | |
| JP4776009B2 (en) | Water heater | |
| CN106766130B (en) | The control method and control system of hot water storage tank and hot water storage tank | |
| CN205373025U (en) | Water heating system | |
| CN207299499U (en) | A kind of combined intelligent thermostatic electric water heater | |
| JP6152683B2 (en) | Hot water storage device | |
| CN113137657A (en) | One-driving-two heat pump heating water supply system and control method thereof | |
| JP6628643B2 (en) | Hot water supply system | |
| CN208282236U (en) | A kind of heating system | |
| JP6112926B2 (en) | Multi hot water supply system and control method thereof | |
| CN203657171U (en) | Circulating instant energy-saving water heater | |
| CN206514552U (en) | A kind of water economizer | |
| CN206281027U (en) | A kind of domestic hot-water intelligence control system of distributed busbar protection | |
| CN109682057A (en) | A kind of heating means preheating water purifier | |
| JP3868909B2 (en) | Hot water storage water heater | |
| CN205641572U (en) | Intelligence hot water supply water saving fixtures | |
| CN202973355U (en) | Household independent heating and domestic hot water supply control system | |
| CN113606655A (en) | Control method for multi-energy heat supply water path multi-circulation system | |
| CN210463564U (en) | Double-water-tank water supply system | |
| JP2009186070A (en) | Storage type hot-water supply device | |
| CN107449148A (en) | Heat-pump water-heater water tank and Teat pump boiler | |
| CN207379064U (en) | A kind of combustion gas assisted heat pump hot water apparatus | |
| CN207365404U (en) | waste heat recycling system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210720 |