Energy storage heating system suitable for heat pump multi-connected module

Abstract

The utility model relates to the technical field of energy conservation and environmental protection of heating in winter, in particular to an energy storage heating system suitable for a heat pump multi-connected module, which comprises a water collector, a pipeline dirt separator, a heat storage water tank group, a circulating system, a water replenishing system, a drain valve, an air source heat pump unit system, an expansion tank and a water segregator, when the air pressure in the water storage tank is too high, internal gas water pushes the sealing plug to move upwards, at the moment, gas flows into the heat dissipation cavity through the connecting pipe, due to the fact that the heat dissipation cavity is filled with water, the heat dissipation effect of the heat dissipation cavity is greatly improved, and the heat dissipation effect of the heat dissipation cavity is improved. And after being cooled by water in the heat dissipation cavity, the steam is discharged from the round holes in the cover plate.

Description

Technical Field

[0001] The utility model relates to the technical field of energy conservation and environmental protection for winter heating, in particular to an energy storage heating system suitable for a heat pump multi - connection module. Background Art

[0002] At present, low - ambient - temperature air - source heat pump products have been greatly applied and popularized in China, especially in the northern regions. For heat pumps with conventional compressor intermediate gas injection or injection technology, the inlet and outlet temperatures are set at about 5°C, and the return water temperature is used as the parameter for determining the start - stop of the unit. For some heat pumps with high water supply temperatures and large temperature differences, especially CO2 air - source heat pumps, their water supply temperatures are relatively high, and the inlet - outlet temperature difference is generally set at about 20°C. At the same time, the return water temperature is also used as the parameter for the start - stop of the unit.

[0003] Due to the change of the external environmental temperature and the fluctuation of the indoor heat load with the influence of the external environmental temperature, the energy storage heating unit will experience frequent start - stop phenomena under certain working conditions, which will cause fluctuations in the indoor temperature, affect indoor comfort, and also have an adverse impact on the service life of the unit. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the following disadvantages in the prior art: due to the change of the external environmental temperature and the fluctuation of the indoor heat load with the influence of the external environmental temperature, the unit will experience frequent start - stop phenomena under certain working conditions, which will cause fluctuations in the indoor temperature, affect indoor comfort, and also have an adverse impact on the service life of the unit. The utility model provides an energy storage heating system suitable for a heat pump multi - connection module.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] An energy storage heating system suitable for a heat pump multi - connection module includes a water collector, a pipeline dirt remover, a group of hot water storage tanks, a circulation system, a water replenishing system, a drain valve, an air - source heat pump unit system, an expansion tank, and a water distributor. The group of hot water storage tanks includes a water storage tank and a connecting pipe. One end of the connecting pipe is fixedly connected and communicated with the upper end of the water storage tank. The water collector is connected and communicated with the group of hot water storage tanks through the pipeline dirt remover. The group of hot water storage tanks is connected and communicated with the expansion tank through the connecting pipe. The water replenishing system is connected and communicated with the expansion tank. The water replenishing system is connected and communicated with the circulation system. The circulation system is connected and communicated with the water distributor through the air - source heat pump unit system. The circulation system is connected with the drain valve.

[0007] The group of hot water storage tanks is composed of multiple water storage tanks connected in series. A drain valve and an inspection port are respectively arranged at the bottom of the water storage tank. An automatic air release valve is installed at the top of the water storage tank.

[0008] Preferably, a heat dissipation component is installed on the automatic air release valve. The heat dissipation component includes a connecting pipe, a heat dissipation chamber, a water collection chamber, a sleeve, a water inlet pipe, and a water delivery pipe. One end of the connecting pipe is fixedly communicated with the upper end of the water storage tank, the heat dissipation chamber is fixedly communicated with the end of the connecting pipe away from the water storage tank, the water collection chamber is fixedly connected to the lower end of the heat dissipation chamber, the sleeve is fixedly communicated with the water collection chamber through the water inlet pipe, and the water delivery pipe is fixedly communicated between the sleeve and the heat dissipation chamber.

[0009] Preferably, the heat dissipation component further includes a water passing pipe, the water passing pipe is fixedly communicated between the upper end of the heat dissipation chamber and the water collection chamber, a cover plate is fixedly connected to the upper end of the heat dissipation chamber, and a plurality of round holes are formed in the cover plate.

[0010] Preferably, a sealing plug is slidably connected to the upper side wall of the connecting pipe, and a spring is fixedly connected between the upper end of the sealing plug and the upper surface of the connecting pipe.

[0011] Preferably, a rotating shaft is rotatably connected in the sleeve, a thread is provided at the end of the rotating shaft, a piston is installed in the sleeve, and the piston is threadedly connected to the rotating shaft.

[0012] Preferably, the end of the rotating shaft away from the sleeve is rotatably connected in the connecting pipe, and fan blades are annularly arrayed on the rotating shaft, and the fan blades are arranged in the connecting pipe.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] 1. After adding one or more series-connected water storage tanks, the water temperature change in the heating circulation system no longer changes violently, thereby achieving the purpose of reducing the start-stop times of the air source heat pump. At the same time, within the same time, the slight change in water temperature also provides a heat source support for the relatively stable indoor temperature.

[0015] 2. When the air pressure in the water storage tank is too high, the internal gas water pushes the sealing plug upward. At this time, the gas flows through the connecting pipe into the heat dissipation chamber. Since the heat dissipation chamber is filled with water, the steam is cooled by the water in the heat dissipation chamber and then discharged through the round holes in the cover plate.

[0016] 3. As the piston continuously moves up and down, the cold water in the water collection chamber is continuously input into the heat dissipation chamber to reduce the temperature of the water in the heat dissipation chamber, optimizing the heat dissipation function for the discharged hot air. At the same time, when the water level in the heat dissipation chamber rises, it will flow back to the water collection chamber through the water passing pipe, and the water in the water collection chamber is cooled by the cooling device, realizing the circular use of the heat dissipation water. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a flowchart of an energy storage heating system suitable for a heat pump multi-connected module proposed by the present utility model;

[0018] Figure 2 The front structural schematic diagram of an energy storage heating system suitable for a heat pump multi - module proposed by the present utility model;

[0019] Figure 3 The connection pipe structural schematic diagram of an energy storage heating system suitable for a heat pump multi - module proposed by the present utility model.

[0020] In the figure: 1 water storage tank, 2 connection pipe, 3 sealing plug, 4 heat dissipation cavity, 5 water pipe, 6 water collection cavity, 7 water delivery pipe, 8 water inlet pipe, 9 sleeve, 10 rotating shaft, 11 spring, 12 cover plate, 13 water replenishing system, 14 drain valve, 15 air source heat pump unit system, 16 water distributor, 17 water collector, 18 pipeline dirt remover, 19 expansion tank, 20 circulation system, 21 hot water storage tank group. Specific embodiments

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with 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 of the embodiments.

[0022] Terms such as "upper", "lower", "left", "right", "middle" and "one" cited in the present utility model are only for the convenience of description and are not used to limit the scope of implementation of the present utility model. The change or adjustment of their relative relationship, without substantial change in the technical content, should also be regarded as the scope of implementation of the present utility model.

[0023] Refer to Figures 1 - 3, A heat storage heating system suitable for a heat pump multi - connection module, including a water collector 17, a pipeline dirt remover 18, a hot water storage tank group 21, a circulation system 20, a water replenishment system 13, a drain valve 14, an air - source heat pump unit system 15, an expansion tank 19, and a water distributor 16. The hot water storage tank group 21 includes a water storage tank 1 and a connecting pipe 2. One end of the connecting pipe 2 is fixedly connected and communicated with the upper end of the water storage tank 1. The water collector 17 is connected and communicated with the hot water storage tank group 21 through the pipeline dirt remover 18. The hot water storage tank group 21 is connected and communicated with the expansion tank 19 through the connecting pipe 2. The hot water storage tank group 21 is composed of multiple water storage tanks 1 connected in series; according to the size of the heating load, it can be one unit, or more than two units. The water replenishment system 13 is connected and communicated with the expansion tank 19. The expansion tank 19 eliminates the influence of the expansion of the heating water caused by the change of the supply water temperature during the heating process on the pipeline pressure. The water replenishment system 13 is composed of a water softening device, a softened water tank, and a water replenishment water pump group. The water replenishment water pump group is composed of two sets of water replenishment water pump pipe fittings connected in parallel. The water replenishment water pump pipe fitting is composed of a valve, a flexible connection, a water replenishment water pump, a check valve, etc. connected in series. The water replenishment system 13 is connected and communicated with the circulation system 20. The circulation system 20 is connected and communicated with the water distributor 16 through the air - source heat pump unit system 15. The air - source heat pump unit system 15 is composed of multiple identical modules, which are connected in parallel between each other, and the multiple units are in a common - return parallel connection. The circulation system 20 is connected to the drain valve 14. The circulation system 20 is composed of a valve, a flexible connection, a circulation water pump, a check valve, etc. connected in series. Usually, one is used and one is reserved, or multiple are used and one is reserved according to needs, and the standby and the actual operation are in parallel connection.

[0024] The hot water storage tank group 21 is composed of multiple water storage tanks 1 connected in series. A drain valve and a maintenance port are respectively arranged at the bottom of the water storage tank 1. An automatic air - release valve is installed at the top of the water storage tank 1, and a heat - dissipation component is installed on the automatic air - release valve. The heat - dissipation component includes a heat - dissipation cavity 4, a water - collecting cavity 6, a sleeve 9, a water inlet pipe 8, and a water delivery pipe 7. The heat - dissipation cavity 4 is fixedly connected and communicated with one end of the connecting pipe 2 far away from the water storage tank 1. Water is filled in the heat - dissipation cavity 4. The water - collecting cavity 6 is fixedly connected to the lower end of the heat - dissipation cavity 4. A cooling device is installed in the water - collecting cavity 6 for cooling the returned water. The sleeve 9 is fixedly connected and communicated with the water - collecting cavity 6 through the water inlet pipe 8. The water delivery pipe 7 is fixedly connected and communicated between the sleeve 9 and the heat - dissipation cavity 4. One - way valves are respectively installed on the water inlet pipe 8 and the water delivery pipe 7. The heat - dissipation component further includes a through - water pipe 5, which is fixedly connected and communicated between the upper end of the heat - dissipation cavity 4 and the water - collecting cavity 6. The upper end of the heat - dissipation cavity 4 is fixedly connected with a cover plate 12, and a plurality of round holes are opened on the cover plate 12.

[0025] A rotating shaft 10 is rotatably connected in the sleeve 9. A thread is provided at the end of the rotating shaft 10. A piston is installed on the sleeve 9, and the piston is thread - connected to the rotating shaft 10. One end of the rotating shaft 10 far away from the sleeve 9 is rotatably connected in the connecting pipe 2. A plurality of fan blades are annularly arrayed on the rotating shaft 10, and the fan blades are arranged in the connecting pipe 2. An arc - shaped cavity is provided at one place in the connecting pipe 2. The fan blades are divided into multiple parts, and a part of them is located in the arc - shaped cavity.

[0026] In the utility model, the water replenishment system 13 is composed of a softening water device, a softening water tank and a water replenishment pump group. The water replenishment pump group is composed of two sets of water replenishment pump pipe fittings connected in parallel. The water replenishment pump pipe fittings are composed of valves, soft connections, water replenishment pumps, check valves, etc. in series. After being treated by the softening water device, the tap water flows into the softening water tank. The softening water tank is used to store softened tap water, which is used as heating circulation water. A water level gauge or a float valve is set in the softening water tank. When the return water pressure of the heating circulation is lower than the set value, the water replenishment pump is started to draw softened water in the water replenishment tank and supplement it into the heating circulation pipeline.

[0027] The hot water tank group 21 can be composed of one or more water tanks 1 connected in series. An automatic exhaust valve is arranged on the top of the water tank 1, and a drain valve and an inspection port are arranged on the bottom. A certain amount of heating circulation water is stored in the water tank 1. Based on the start-stop mechanism of the air source heat pump, when the return water temperature is lower than the set value, the unit starts, and when the return water temperature is higher than a certain set value, the unit stops. When the amount of water stored in the pipeline and the indoor terminal is small, the change in the circulating water temperature is more drastic than that in the water tank 1, thereby causing the air source heat pump unit system 15 to start and stop frequently. Therefore, after adding one or more series water tanks 1, the water temperature of the heating circulation system 20 no longer changes drastically, thereby achieving the purpose of reducing the number of starts and stops of the air source heat pump. At the same time, the slight change in water temperature within the same time also provides a heat source support for the relatively stable indoor temperature.

[0028] When the air pressure in the water storage tank 1 is too high, the internal gas water pushes the sealing plug 3 upward and stretches the spring 11. At this time, the gas flows into the heat dissipation chamber 4 through the connecting pipe 2. Since the heat dissipation chamber 4 is filled with water, the steam is cooled by the water in the heat dissipation chamber 4 and discharged from the circular hole on the cover plate 12, thereby realizing the automatic pressure relief in the water storage tank 1 and the heat dissipation of the discharged gas. At the same time, when the pressurized steam flows in the connecting pipe 2, it can push the fan blades at the upper end of the rotating shaft 10, driving the rotating shaft 10 to rotate. When the rotating shaft 10 rotates, it can drive the piston to move back and forth up and down in the sleeve 9. When the piston moves upward, the one-way valve on the water inlet pipe 8 is closed, and the water is delivered. When the one-way valve on the pipe 7 is opened, the piston will push the water in the sleeve 9 to flow through the water pipe 7 to the heat dissipation chamber 4 for mixing. When the piston moves downward, the one-way valve on the water inlet pipe 8 opens, and the one-way valve on the water pipe 7 is closed, and the water in the water collecting chamber 6 will enter the sleeve 9, and reciprocate in sequence. As the piston continues to move up and down, the cold water in the water collecting chamber 6 is continuously input into the heat dissipation chamber 4, reducing the temperature of the water in the heat dissipation chamber 4, optimizing the heat dissipation function of the discharged hot air, and at the same time, the water level in the heat dissipation chamber 4 will rise and flow back to the water collecting chamber 6 through the water pipe 5, and the water in the water collecting chamber 6 is cooled by the cooling equipment, thereby realizing the recycling of heat dissipation water.

[0029] In the present utility model, unless otherwise clearly specified and defined, terms such as "installation", "connection", "linkage", "fixation" and the like shall be understood in a broad sense.

[0030] The above is only the preferred specific embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution and inventive concept of the present utility model, making equivalent substitutions or changes, shall be covered by the protection scope of the present utility model.

Claims

1. An energy storage heating system suitable for a heat pump multi-module, comprising a water collector (17), a pipeline decontamination device (18), a hot water storage tank group (21), a circulation system (20), a water replenishment system (13), a drain valve (14), an air source heat pump unit system (15), an expansion tank (19), and a water distributor (16), characterized in that: The hot water tank group (21) comprises a water tank (1) and a connecting pipe (2), one end of the connecting pipe (2) being fixedly connected to the upper end of the water tank (1), the water collector (17) being connected to the hot water tank group (21) via a pipeline decontamination device (18), the hot water tank group (21) being connected to the expansion tank (19) via the connecting pipe (2), the water replenishment system (13) being connected to the expansion tank (19), the water replenishment system (13) being connected to the circulation system (20), the circulation system (20) being connected to the water distributor (16) via the air source heat pump unit system (15), and the circulation system (20) being connected to the drain valve (14); The hot water storage tank group (21) is composed of a plurality of water storage tanks (1) connected in series, a drain valve and an inspection port are respectively arranged at the bottom of the water storage tank (1), and an automatic air release valve is installed at the top of the water storage tank (1).

2. The energy storage heating system suitable for a heat pump multi-module according to claim 1, characterized in that The automatic air release valve is provided with a heat dissipation component, which comprises a connecting pipe (2), a heat dissipation chamber (4), a water collecting chamber (6), a sleeve (9), a water inlet pipe (8), and a water delivery pipe (7). One end of the connecting pipe (2) is fixedly connected to the upper end of the water storage tank (1), the heat dissipation chamber (4) is fixedly connected to the end of the connecting pipe (2) away from the water storage tank (1), the water collecting chamber (6) is fixedly connected to the lower end of the heat dissipation chamber (4), the sleeve (9) is fixedly connected to the water collecting chamber (6) through the water inlet pipe (8), and the water delivery pipe (7) is fixedly connected between the sleeve (9) and the heat dissipation chamber (4).

3. The energy storage heating system suitable for a heat pump multi-module according to claim 2, characterized in that: The heat dissipation component further comprises a water pipe (5), wherein the water pipe (5) is fixedly connected between the upper end of the heat dissipation cavity (4) and the water collecting cavity (6), and the upper end of the heat dissipation cavity (4) is fixedly connected with a cover plate (12), and a plurality of circular holes are formed on the cover plate (12).

4. The energy storage heating system suitable for a heat pump multi-module according to claim 1, characterized in that: A sealing plug (3) is slidably connected to the upper side wall of the connecting pipe (2), and a spring (11) is fixedly connected between the upper end of the sealing plug (3) and the upper surface of the connecting pipe (2).

5. The energy storage heating system suitable for a heat pump multi-module according to claim 2, characterized in that: A rotating shaft (10) is rotatably connected inside the sleeve (9), a thread is provided at the end of the rotating shaft (10), and a piston is installed on the sleeve (9), and the piston is threadedly connected to the rotating shaft (10).

6. The energy storage heating system suitable for a heat pump multi-module according to claim 5, characterized in that: One end of the rotating shaft (10) away from the sleeve (9) is rotatably connected to the connecting tube (2), and fan blades are installed in a circular array on the rotating shaft (10), and the fan blades are arranged in the connecting tube (2).

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