CN211204429U - A step-cycle closed-type pressurized air energy central hot water system - Google Patents

Abstract

The utility model discloses a step-by-step circulation closed pressure-bearing air can central water heating system relates to the heat energy comprehensive utilization field, and its technical scheme main points are: including air can heating system and heating water tank, air can heating system includes air can heat pump set, the intercommunication has outlet pipe and inlet tube between air can heat pump set and the heating water tank, outlet pipe and inlet tube all are equipped with first valve, still install circulating pump one on the inlet tube, heating water tank has the heat-retaining unit group through the connecting tube intercommunication, the connecting tube intercommunication has water supply pipe, the play water end of heat-retaining unit group communicates respectively has circulating pipe and filler pipe, circulating pipe's play water department is linked together with heating water tank, be used for controlling the leading-in heating control subassembly to the heating water tank of water in the heat-retaining unit group on the circulating pipe. The utility model discloses well this system heating and water for water all adopt to be marching type, ensure that the water of preferential heating is the water of coldest end in the system, improve heating efficiency.

Description

A step-cycle closed-type pressurized air energy central hot water system

technical field

The utility model relates to the field of comprehensive utilization of thermal energy, in particular to a step-cycle closed-type pressure-bearing air energy central hot water system.

Background technique

With the continuous progress of human society, the demand for energy continues to increase, the continuous consumption of traditional non-renewable energy such as coal, and the environmental pollution caused by its use continue to intensify. The development of new energy materials and devices with energy-saving and environmental protection functions is an important issue. inevitable trend of social development.

The energy consumption of hot water is the fourth largest energy consumption in buildings after heating, air conditioning and lighting. Heat energy is converted into useful high-temperature heat energy to realize heating function, such as solar heat pump, air energy heat pump, etc. The advantage of air energy heat pump is that it can operate continuously under the condition of high ambient temperature and is not affected by the intensity of external solar radiation. Therefore, the reliability of user water consumption is greatly enhanced. At present, most of the industry adopts open air energy hot water system, which is energy-saving equipment compared with traditional energy equipment, but still consumes more energy than closed pressure-bearing systems.

Therefore, it is necessary to propose a new solution to solve this problem.

Utility model content

The purpose of this utility model is to provide a step-cycle closed-type pressurized air energy central hot water system in order to solve the above problems.

The above-mentioned technical purpose of the present utility model is achieved through the following technical solutions: a step-cycle closed-type pressurized air energy central hot water system, including an air energy heating system and a heating water tank, and the air energy heating system includes an air energy heating system. A heat pump unit, a water outlet pipe and a water inlet pipe are communicated between the air energy heat pump unit and the heating water tank, the water outlet pipe and the water inlet pipe are both provided with a first valve, and a circulating pump is also installed on the water inlet pipe. The heating water tank is connected with a heat storage unit group through a connecting pipe, the connecting pipe is connected with a water supply pipe, the water outlet of the heat storage unit group is connected with a circulating water pipe and a water supply pipe respectively, and the water outlet of the circulating water pipe is connected with the heating water tank. The circulating water pipe is used to control the introduction of the water in the heat storage unit group into the heating control assembly in the heating water tank.

By adopting the above technical solution, the air energy is used to heat the water in the heating water tank. When the temperature sensing probe on the upper part of the water tank detects that the water temperature reaches the first set temperature, the system turns on the heating control component and sets the water temperature in the heat storage unit group to the lowest temperature. The water is pumped to the bottom of the heating water tank for heating, and the hot water that is higher than the set temperature is stepped into the heat storage unit for pressure. When the temperature sensing probe on the upper part of the water tank detects that the water temperature reaches the second set temperature, the system turns off the heating control. Component, the air can continue to heat the heating water tank, and the water in the whole system is heated to the set temperature. The coldest end of the water, thereby greatly improving the heating efficiency and saving energy.

The utility model is further provided that: the connecting pipeline between the water supply pipeline and the heating water tank and the connecting pipeline between the water supply pipeline and the heat storage unit group are provided with a second valve.

The utility model is further configured as follows: the heating control assembly includes an electric valve installed on the circulating water pipe, a second circulating pump and two third valves, and the electric valve and the second circulating pump are located between the two third valves.

The utility model is further configured as follows: the water supply pipe is connected with a hot water return pipe and a cold water injection pipe, and the hot water return pipe and the cold water injection pipe are both provided with a fourth valve, a check valve and a pressure gauge, and the hot water return pipe and the cold water injection pipe are both provided with a fourth valve, a check valve and a pressure gauge. A return pump is also installed on the return pipe.

The utility model is further configured as follows: the heat storage unit group includes a plurality of hot water storage tanks connected in series.

By adopting the above technical solution, by setting up a heat storage unit group composed of a plurality of hot water storage tanks, that is, a large-capacity water tank is divided into several distributed hot water storage tanks, so that the load-bearing load per square meter of the building is reduced, and the energy The building load is greatly reduced without the need for major renovations to the building's load-bearing structure, thereby saving costs.

The utility model is further provided that: an auxiliary heating device is fixedly installed in the heating water tank.

By adopting the above technical solution and setting up the auxiliary heating device, when the temperature in winter is extremely low, that is, when the air energy efficiency decreases, the heating rate is insufficient to supply hot water, or the water at the water end is too large, the auxiliary heating device can be activated to reduce the temperature. Warm water for heating to keep the water temperature constant.

The utility model is further provided that: the heating water tank and the hot water storage tank both include a water tank shell, a water tank inner tank and a thermal insulation material layer located between the water tank shell and the water tank inner tank, and the water tank shell and the thermal insulation material layer are fixed between the water tank shell and the thermal insulation material layer. Aluminized thermal insulation is attached.

By adopting the above technical solution, the thermal insulation effect of the heating water tank and the hot water storage tank can be enhanced by providing the thermal insulation material layer and the aluminized thermal insulation layer, and the heat conduction in the heating water tank and the hot water storage tank can be effectively reduced, thereby reducing the heat transfer to the outside. Enhanced thermal insulation performance.

To sum up, the utility model has the following beneficial effects:

The air energy is used to heat the water in the heating water tank. When the temperature sensing probe on the upper part of the water tank detects that the water temperature reaches the first set temperature, the system turns on the heating control component and pumps the water with the lowest water temperature in the heat storage unit group to the heating water tank The bottom is heated, and the hot water higher than the set temperature is stepped into the heat storage unit to be pressed. When the temperature sensing probe on the upper part of the water tank detects that the water temperature reaches the second set temperature, the system turns off the heating control component, and the air can continue to be heated. The heating water tank is heated and heated, and the water in the whole system is heated up to the set temperature. The heating of the system is step-by-step, and the effluent water is also step-by-step, which can ensure that the water that is preferentially heated is the coldest water in the system. Thereby greatly improving the heating efficiency and saving energy.

Description of drawings

Fig. 1 is the structural representation of a kind of step-cycle closed-type pressurized air energy central hot water system of the present invention;

2 is a schematic structural diagram of a heating water tank and a hot water storage tank in a step-cycle closed-type pressurized air energy central hot water system of the present invention.

Reference numerals: 1, heating water tank; 2, second valve; 3, connecting pipeline; 4, heating control assembly; 41, third valve; 42, electric valve; 43, circulating pump two; 5, circulating water pipe; 6, Water supply pipe; 7. Hot water storage tank; 8. Hot water return pipe; 9. Cold water injection pipe; 10. Water supply pipe; 11. Return water pump; 12. Pressure gauge; 13. Check valve; 14. Fourth valve; 15. Water outlet pipe; 16. Air energy heat pump unit; 17. First valve; 18. Circulating pump one; 19. Water inlet pipe; 20. Auxiliary heating device; Aluminum heat insulation layer; 24. Water tank shell.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the implementations. example. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

Referring to FIG. 1, a step-cycle closed-type pressurized air energy central hot water system includes an air energy heating system and a heating water tank 1. The air energy heating system includes an air energy heat pump unit 16. The air energy heat pump unit 16 and A water outlet pipe 15 and a water inlet pipe 19 are communicated between the heating water tank 1 . The water outlet pipe 15 and the water inlet pipe 19 are both provided with a first valve 17 , and a circulating pump 18 is also installed on the water inlet pipe 19 .

The heating water tank 1 is connected with the heat storage unit group through the connecting pipe 3, the connecting pipe 3 is connected with the water supply pipe 10, the water supply pipe 10 is used for providing hot water, the connecting pipe 3 between the water supply pipe 10 and the heating water tank 1 and the water supply pipe A second valve 2 is provided on the connecting pipeline 3 between the 10 and the heat storage unit group. The hot water tank B, the hot water storage tank C, the hot water storage tank D, the hot water storage tank E, and the hot water storage tank F, the water outlet ends of the hot water storage tank F are respectively connected with a circulating water pipe 5 and a water adding pipe 6. The circulating water pipe The water outlet of 5 is communicated with the heating water tank 1, and the water supply pipe 6 is connected with a hot water return pipe 8 and a cold water injection pipe 9. The hot water return pipe 8 and the cold water injection pipe 9 are provided with a fourth valve 14, a check valve 13 and The pressure gauge 12 and the return water pump 11 are also installed on the hot water return pipe 8 .

The heating control assembly 4 on the circulating water pipe 5 is used to control the introduction of the water in the heat storage unit group into the heating water tank 1. The heating control assembly 4 includes an electric valve 42 installed on the circulating water pipe 5, a circulating pump two 43 and two first The three valves 41 , the electric valve 42 and the second circulation pump 43 are located between the two third valves 41 .

Please refer to FIG. 2 , an auxiliary heating device 20 is fixedly installed in the heating water tank 1, and the auxiliary heating device 20 is an electric heating tube. The thermal insulation material layer 22 between the outer shell 24 and the water tank liner 21, the thermal insulation material layer 22 is made of polyurethane foam material or glass wool material, and an aluminum-plated thermal insulation layer 23 is fixedly connected between the water tank shell 24 and the thermal insulation material layer 22, and the water tank shell 24 and the water tank liner 21 are made of stainless steel, which can enhance the thermal insulation effect of the heating water tank 1 and the hot water storage tank 7, effectively reduce the heat conduction in the heating water tank 1 and the hot water storage tank 7 to the outside, thereby enhancing the thermal insulation performance. .

Since the heat storage unit group can be hot water storage tank A, hot water storage tank B, hot water storage tank C, hot water storage tank D, hot water storage tank E, hot water storage tank F, when a single group of heat storage unit group When the capacity of the water heaters is not enough, they can be simultaneously increased in series and parallel until the design water requirements are met. The heating equipment is a circulating air energy heat pump unit 16, which uses air energy to heat the heating water tank 1. When it is detected that the water temperature reaches 55 degrees (can be set freely), the system turns on the circulation pump 2 43 and the electric valve 42 of the heating control assembly 4, and pumps the water in the hot water storage tank F with the lowest water temperature in the heat storage unit group to the heating water tank 1. The bottom is heated. At this time, the hot water higher than the set temperature steps to the hot water storage tank A, the hot water storage tank B, the hot water storage tank C, the hot water storage tank D, the hot water storage tank E, and the hot water storage tank. The hot water tank F is pressurized, and when the temperature sensing probe on the upper part of the hot water storage tank A detects that the water temperature reaches 50 degrees (can be set freely), the system closes the circulation pump 2 43 and the electric valve 42 of the heating control assembly 4, and uses the air energy. Continue to heat the heating water tank 1, and repeat the cycle to heat the water in the entire system to the set temperature.

The heating of the system is step-by-step, and the effluent water is also step-by-step. When in use, the hot water effluent in the system is the hot water storage tank A, the lowest temperature is the hot water storage tank F, and the hot water storage tank A, storage The temperature of the hot water tank B, the hot water storage tank C, the hot water storage tank D, the hot water storage tank E, and the hot water storage tank F are stored in steps from high to low, and the cold water and return water enter the hot water storage tank F, and the water When the water is used, the tap water flows into the hot water storage tank F, and the hot water flows through the hot water storage tank F, the hot water storage tank E, the hot water storage tank D, the hot water storage tank C, the hot water storage tank B, and the hot water storage tank. The water tank A is pressed out of the water supply end in a stepwise manner from low to high, which can ensure that the water that is preferentially heated is the coldest water in the system, thereby greatly improving the heating efficiency and saving energy.

When the temperature in winter is extremely low, that is, the reduction of air energy efficiency leads to insufficient heating speed to supply hot water or the water at the water end is too large for an instant, the auxiliary heating device 20 can be activated to heat the relatively low-temperature water in the heating water tank 1 to ensure a constant water temperature. , the electric heating tube is arranged in the heating water tank 1, and a temperature sensor is set in the hot water storage tank B, which can warn in advance that the water temperature is insufficient, and quickly start the auxiliary heating device 20 for heating.

The above are only the preferred embodiments of the present invention, and the protection scope of the present invention is not limited to the above-mentioned embodiments, and all technical solutions that belong to the idea of the present invention belong to the protection scope of the present invention. It should be pointed out that for those skilled in the art, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims (7)

1. The utility model provides a step-by-step circulation closed pressure-bearing air can central hot water system, can heating system and heating water tank (1) including the air, its characterized in that: air can heating system includes that air can heat pump set (16), the intercommunication has outlet pipe (15) and inlet tube (19) between air can heat pump set (16) and heating water tank (1), outlet pipe (15) and inlet tube (19) all are equipped with first valve (17), still install circulating pump (18) on inlet tube (19), heating water tank (1) has the heat-retaining unit group through connecting tube (3) intercommunication, connecting tube (3) intercommunication has water supply pipe (10), the play water end of heat-retaining unit group communicates respectively has circulating water pipe (5) and filler pipe (6), the delivery water department and the heating water tank (1) of circulating water pipe (5) are linked together, the leading-in heating control subassembly (4) to heating water tank (1) of water that is arranged in controlling the heat-retaining unit group on circulating water pipe (5).

2. A step-and-cycle closed pressurized air energy central hot water system as claimed in claim 1, wherein: be located between water supply pipe (10) and heating water tank (1) connecting tube (3) and be located between water supply pipe (10) and the heat-retaining unit group all be equipped with second valve (2) on connecting tube (3).

3. A step-and-cycle closed pressurized air energy central hot water system as claimed in claim 1, wherein: the heating control assembly (4) comprises an electric valve (42), a second circulating pump (43) and two third valves (41), wherein the electric valve (42) and the second circulating pump (43) are arranged on the circulating water pipe (5), and the electric valve (42) and the second circulating pump (43) are positioned between the two third valves (41).

4. A step-and-cycle closed pressurized air energy central hot water system as claimed in claim 1, wherein: add water pipe (6) intercommunication and have hot water wet return (8) and cold water injection pipe (9), hot water wet return (8) and cold water injection pipe (9) all are equipped with fourth valve (14), check valve (13) and manometer (12), still install return water pump (11) on hot water wet return (8).

5. A step-and-cycle closed pressurized air energy central hot water system as claimed in claim 1, wherein: the heat storage unit group comprises a plurality of heat storage water tanks (7) connected in series.

6. A step-and-cycle closed pressurized air energy central hot water system as claimed in claim 1, wherein: and an auxiliary heating device (20) is fixedly arranged in the heating water tank (1).

7. A stepped circulation closed pressurized air energy central hot water system according to claim 5, characterized in that: heating water tank (1) and heat storage water tank (7) all include water tank shell (24), water tank inner bag (21) and are located insulating material layer (22) between water tank shell (24) and water tank inner bag (21), fixedly connected with aluminize insulating layer (23) between water tank shell (24) and insulating material layer (22).

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