Medium-deep layer underground heat exchange coupling energy tower heat supply device

Abstract

The utility model discloses a middle-deep layer underground heat exchange coupling energy tower heat supply device, which relates to the technical field of heat supply equipment, and comprises an energy tower assembly and a heat exchange pipe assembly, the heat exchange pipe assembly is connected with a heat exchange water supply pipe and a heat exchange water return pipe, and the energy tower assembly is connected with an energy tower water supply pipe and an energy tower water return pipe. One ends of the energy tower water supply pipe, the energy tower water return pipe, the heat exchange water supply pipe and the heat exchange water return pipe are connected with a circuit changing device, the outer wall of the circuit changing device is connected with a tail end water inlet pipe and a tail end water outlet pipe, and one ends of the tail end water inlet pipe and the tail end water outlet pipe are connected with a user side. According to the medium-deep layer underground heat exchange coupling energy tower heat supply device, the energy tower and the heat exchange pipe are adopted for alternately supplying heat, the medium-deep layer underground heat exchange pipe assembly is used as a heat source for supplying heat in extremely cold and rainy and snowy weather, the stability of a heating system in winter is improved, the experience feeling of a user is improved, and the heat supply efficiency is improved through the circuit switching disc. Line switching in different seasons is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of heating equipment, and more specifically to a medium-deep underground heat exchange coupling energy tower heating device. Background Art

[0002] The energy tower is a high-efficiency energy-saving device based on environmental heat source conversion technology, which is mainly used in heat pump systems. The working efficiency of the air source heat pump system depends largely on the temperature of the external environment. In the cold winter, when the outdoor temperature is low, the heating efficiency of the heat pump will decrease, and it will take longer to heat the indoor space. When heating in the north, the air source heat pump will have cold accumulation. When encountering extreme rain and snow weather, the air source heat pump unit will have frosting conditions, and the operating energy efficiency will be greatly reduced. The heat exchange well is suitable for winter and can quickly increase the temperature in the house. The two devices complement each other to enhance the experience when using it.

[0003] When geothermal energy and heat pump systems are used in combination, there are still the following problems:

[0004] 1. In winter, geothermal energy is used, and the heat pump system usually discharges the internal liquid to prevent the pipes from freezing and cracking. Although the liquid in the equipment is easy to discharge, the liquid in the pipes will remain in the pipes and valves, which will have the risk of freezing and cracking. Moreover, when reactivating or cleaning the equipment, the water flow will have a water hammer effect due to the action of the water pump, which will cause impact damage to the pipes and equipment, thereby causing damage to the equipment or pipes;

[0005] 2. In summer, when a heat pump system is used for heating, geothermal energy will be idle. A large amount of liquid is usually stored in the idle pipes. The water body will become a place for microorganisms to reproduce in a stagnant environment, thus affecting the water quality and system performance. At the same time, stagnant water bodies will easily deposit scale.

[0006] A six-way conversion valve is disclosed in the Chinese utility model patent application number: CN219692337U, which has a valve body structure. The front end surface of the valve body is respectively provided with an upper liquid inlet and a lower liquid inlet, and the two side end surfaces are respectively provided with two upper liquid outlets and two lower liquid outlets. The upper part of the upper cover plate is provided with a conversion handle, and the lower end of the conversion handle is inserted into the valve body, and eccentric wheels are fixedly provided on the rotary rod. The inner sides of the two upper liquid outlets and the two lower liquid outlets are respectively provided with plug seats, and the eccentric wheel is arranged between the two plug seats. Although this six-way conversion valve can realize the on-off of multiple pipelines, the unconnected pipelines will be blocked, and the water body inside the pipeline will be in a static state for a long time. If no corresponding protective measures are taken, the water body in a static state is easy to become a place for microorganisms to reproduce, and the water quality will change, such as algae growth, bacterial proliferation, etc., which affects the cleanliness and heat exchange efficiency of the system. At the same time, precipitation will also occur and scale will be formed.

[0007] Therefore, it is necessary to propose a medium-deep underground heat exchange coupled energy tower heating device to solve the above problems. Utility Model Content

[0008] 1. Technical issues to be resolved

[0009] The purpose of the utility model is to solve the problems raised in the above background technology and provide a medium-deep underground heat exchange coupling energy tower heating device.

[0010] (II) Technical solution

[0011] In order to achieve the above-mentioned purpose, the utility model specifically adopts the following technical solutions:

[0012] A medium-deep underground heat exchange coupled energy tower heating device, comprising an energy tower assembly and a heat exchange tube assembly, the heat exchange tube assembly is connected to a heat exchange water supply pipe and a heat exchange water return pipe, the energy tower assembly is connected to an energy tower water supply pipe and an energy tower water return pipe, one end of the energy tower water supply pipe, the energy tower water return pipe, the heat exchange water supply pipe and the heat exchange water return pipe are connected to a circuit switching device, the outer wall of the circuit switching device is connected to a terminal water inlet pipe and a terminal water outlet pipe, and one end of the terminal water inlet pipe and the terminal water outlet pipe is connected to a user end;

[0013] The switching device comprises an outer shell and an internal rotating switching disk, wherein the inside of the switching disk is provided with an inlet pipe, a return pipe and a maintenance pipe penetrating the outer wall, and the maintenance pipe is located between the inlet pipe and the return pipe;

[0014] A bending portion is provided on the maintaining pipe, a drainage cover is provided at the bottom of the switching plate, a driving device is installed inside the drainage cover, and an output end of the driving device is fixedly connected to a dragon rod located in the bending portion.

[0015] Preferably, a support rod is fixedly connected to the top of the switching plate, a worm wheel is fixedly connected to the top of the support rod, a worm is drivingly connected to the outer wall of the worm wheel, and a hand wheel is fixedly connected to the worm.

[0016] Preferably, a turntable frame and a support frame are fixedly connected to the top of the housing, the turntable frame is supported between the housing and the worm gear, and the worm is rotatably connected to the support frame.

[0017] Preferably, an arc-shaped groove is provided on the shell, an indicating block is slidably connected inside the arc-shaped groove, and the indicating block is fixedly connected to the switching plate.

[0018] Preferably, an energy tower heat pump main unit is installed on the energy tower water supply pipe and the energy tower return pipe, and a geothermal heat pump main unit is installed on the heat exchange water supply pipe and the heat exchange return pipe.

[0019] Preferably, an energy tower circulation pump is installed on the energy tower return pipe, a geothermal circulation pump is installed on the heat exchange return pipe, and a heating circulation pump is installed on the terminal water inlet pipe.

[0020] Preferably, a protective shell is installed on the top of the housing and is sleeved on the outside of the worm gear.

[0021] Compared with the prior art, the beneficial effects of the present invention are:

[0022] 1. This device is equipped with a switching plate inside the switching device. Through different internal connection methods, the line switching in different seasons is realized. At the same time, the bending part can prevent the residual liquid in the heat pump pipeline in winter, reducing the risk of pipeline freezing and cracking, and can also reduce the damage to the pipeline when the water flow has a water hammer effect when flushing or refilling the pipeline with liquid.

[0023] 2. Under winter heating conditions, when the heating operating conditions are good at the beginning and end of the cold season, the device uses energy tower components for heating. In extremely cold and rainy and snowy weather, the medium and deep underground heat exchange tube components are used as the heat source for heating, which improves the stability of the winter heating system and enhances the user experience.

[0024] 3. In summer, the inlet and outlet pipes of the geothermal pipes can be connected by themselves, and the water pump can be used to realize the automatic circulation of the internal water body, avoiding the breeding of bacteria and the deposition of scale when the water body is stagnant. At the same time, the geothermal pipes can be cleaned without shutting down the heat pump system. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the distribution of the main components of the structure of the utility model;

[0026] Figure 2 It is a schematic diagram of the connection state of the structure line of the utility model;

[0027] Figure 3 It is a three-dimensional schematic diagram of the connection structure between the switching device and the protective shell in the utility model;

[0028] Figure 4 It is a three-dimensional schematic diagram of the connection structure between the switching device and the turntable frame in the utility model;

[0029] Figure 5 It is a three-dimensional cross-sectional schematic diagram of the connection structure between the switching device and the turntable frame in the utility model;

[0030] Figure 6 It is a three-dimensional cross-sectional schematic diagram of the distribution of the pipeline and the bending part maintained in the utility model;

[0031] Figure 7 It is a schematic diagram of the connection between the heat exchange water supply pipe and the terminal water inlet pipe in the utility model;

[0032] Figure 8 This is a schematic diagram of the connection between the water supply pipe of the energy tower and the terminal water inlet pipe in the utility model.

[0033] Reference numerals:

[0034] 101. Energy tower assembly; 102. Heat exchange tube assembly; 103. Heat exchange water supply pipe; 104. Heat exchange return pipe; 105. Energy tower water supply pipe; 106. Energy tower return pipe; 107. Terminal water inlet pipe; 108. Terminal water outlet pipe; 109. User end; 110. Energy tower heat pump host; 111. Geothermal heat pump host; 112. Energy tower circulation pump; 113. Geothermal circulation pump; 114. Heating Circulation pump; 201, switching device; 202, housing; 203, switching plate; 204, water inlet pipe; 205, water return pipe; 206, maintenance pipe; 207, bending part; 208, drain cover; 209, indicator block; 210, protective shell; 211, support rod; 212, worm gear; 213, worm; 214, hand wheel; 215, turntable frame; 216, support frame; 217, arc groove. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0036] See also Figure 1-8A medium-deep underground heat exchange coupled energy tower heating device includes an energy tower assembly 101 and a heat exchange tube assembly 102. The energy tower assembly 101 is an energy tower device, and the heat exchange tube assembly 102 is a medium-deep underground heat exchange device. The two devices are mature equipment and will not be described in detail here. The user end 109 is the external user end. The heat exchange tube assembly 102 is connected with a heat exchange water supply pipe 103 and a heat exchange return pipe 104. The liquid enters the heat exchange tube assembly 102 from the heat exchange water supply pipe 103, and then comes out from the heat exchange return pipe 104. After circulating through the user end 109, it enters the heat exchange water supply pipe 103 again. 3. The energy tower assembly 101 is connected with an energy tower water supply pipe 105 and an energy tower water return pipe 106. Liquid enters the energy tower assembly 101 through the energy tower water supply pipe 105, and then comes out from the energy tower water return pipe 106. After circulating through the user end 109, it enters the energy tower water supply pipe 105 again. One end of the energy tower water supply pipe 105, the energy tower water return pipe 106, the heat exchange water supply pipe 103 and the heat exchange water return pipe 104 is connected with a switching device 201. The switching device 201 is used to switch the use state of the energy tower assembly 101 and the heat exchange pipe assembly 102. When the energy tower assembly 101 is used, refer to Figure 8 , the energy tower water supply pipe 105 and the terminal water inlet pipe 107 form a passage, the energy tower assembly 101 is connected with the user end 109, and the water from the user end 109 enters the energy tower return pipe 106 through the terminal water outlet pipe 108 to circulate. At this time, the heat exchange tube assembly 102 is not used, but the water inside the heat exchange tube assembly 102 can be self-circulated through the geothermal circulation pump 113 to avoid the situation where the water body is stagnant for a long time. The outer wall of the circuit exchange device 201 is connected with the terminal water inlet pipe 107 and the terminal water outlet pipe 108, and one end of the terminal water inlet pipe 107 and the terminal water outlet pipe 108 is connected to the user end 109, and the user end 109 is the external use end;

[0037] refer to Figure 7 and Figure 8 The switching device 201 includes a housing 202 and an internal rotating switching disk 203. The switching disk 203 rotates inside the housing 202 to achieve line replacement. The switching disk 203 is provided with an inlet pipe 204, a return pipe 205 and a maintenance pipe 206 that pass through the outer wall. The energy tower assembly 101, the heat exchange tube assembly 102 and the lines on the user end 109 are all connected to the switching device 201. The maintenance pipe 206 is located between the inlet pipe 204 and the return pipe 205.

[0038] refer to Figure 5 and Figure 6 The pipe 206 is provided with a bending portion 207, and the bending portion 207 is bent to reduce the impact of water hammer on the pipe, thereby protecting the pipe and equipment. Figure 7 Displayed Figure 3 When the switching plate 203 rotates 60 degrees counterclockwise, it becomes Figure 8 A drain cover 208 penetrating through the bent portion 207 is installed at the bottom of the circuit breaker plate 203 to drain the water in the pipeline when the energy tower assembly 101 is drained. At the same time, the bent setting on the bent portion 207 can reduce the impact damage of water hammer on the pipeline when refilling water.

[0039] Specifically, refer to Figures 4 to 6 The top of the switching plate 203 is fixedly connected to a support rod 211, and the top of the support rod 211 is fixedly connected to a worm gear 212. The worm gear 212 drives the switching plate 203 to rotate through the support rod 211. A worm 213 is transmission-connected to the outer wall of the worm gear 212, and a handwheel 214 is fixedly connected to the worm gear 213. The worm gear 212 and the worm gear 213 can be replaced by gear racks with equivalent effects.

[0040] Specifically, refer to Figure 4 A turntable frame 215 and a support frame 216 are fixedly connected to the top of the housing 202. The turntable frame 215 and the support frame 216 are used to support the worm wheel 212 and the worm 213. The turntable frame 215 is supported between the housing 202 and the worm wheel 212, and the worm 213 is rotatably connected to the support frame 216.

[0041] Specifically, refer to Figure 3 and Figure 4 The shell 202 is provided with an arc groove 217, the length of which is the same as the angle of the heat exchange water supply pipe 103 and the energy tower water supply pipe 105, and the inner part of the arc groove 217 is slidably connected with an indicator block 209, and arrows are provided at both ends of the indicator block 209 to indicate the connection status, refer to Figure 3 , the indicating block 209 is fixedly connected to the switching disk 203.

[0042] Specifically, refer to Figure 1 The energy tower heat pump main unit 110 is installed on the energy tower water supply pipe 105 and the energy tower return pipe 106. The energy tower heat pump main unit 110 and the geothermal heat pump main unit 111 are used to increase the temperature of the liquid again. The geothermal heat pump main unit 111 is installed on the heat exchange water supply pipe 103 and the heat exchange return pipe 104.

[0043] Specifically, refer to Figure 1 An energy tower circulation pump 112 is installed on the energy tower return pipe 106. The energy tower circulation pump 112, the geothermal circulation pump 113 and the heating circulation pump 114 are used to drive the flow of liquid. The geothermal circulation pump 113 is installed on the heat exchange return pipe 104, and the heating circulation pump 114 is installed on the terminal water inlet pipe 107.

[0044] Specifically, refer to Figure 3A protective shell 210 is installed on the top of the housing 202 and is sleeved on the outside of the worm gear 212. The protective shell 210 protects the worm gear 212 and the worm 213 to prevent foreign matter from entering.

[0045] In this embodiment, the efficiency of the energy tower assembly 101 is higher in summer, and the energy tower assembly 101 is used to heat the user end 109, while the efficiency of the heat exchange tube assembly 102 is higher in winter, and the energy tower assembly 101 is turned off, and the heat exchange tube assembly 102 is used to heat the user end 109. When in use, when the hot water passes through the energy tower heat pump host 110 and the geothermal heat pump host 111, the temperature will be increased again to improve the user experience of the user end 109;

[0046] In summer, the energy tower assembly 101 is used to provide heat to the user end 109, referring to Figure 8 The energy tower water supply pipe 105 will be connected to the terminal water inlet pipe 107. The water in the energy tower water supply pipe 105 enters the water inlet pipe 204, and then enters the terminal water inlet pipe 107. The terminal water inlet pipe 107 is connected to the user end 109. After the heat exchange at the user end 109, the water is discharged from the terminal water outlet pipe 108. After the terminal water outlet pipe 108 passes through the return pipe 205, it will enter the energy tower return pipe 106, and then return to the energy tower again through the energy tower return pipe 106. The source tower assembly 101 is circulated in this way to provide heat to the user end 109. At this time, the heat exchange tube assembly 102 is not activated, but the heat exchange water supply pipe 103 is connected to the heat exchange return water pipe 104 through the maintenance pipe 206. By starting the geothermal circulation pump 113, the liquid can return to the heat exchange tube assembly 102 to prevent the liquid in the heat exchange tube assembly 102 from being stationary for a long time, resulting in deterioration of water quality. At the same time, the geothermal pipeline can also be cleaned;

[0047] In winter, the heat exchange tube assembly 102, the geothermal circulation pump 113 and the heating circulation pump 114 are used to circulate the hot water after the heat exchange tube assembly 102 is heated to the user end 109. Figure 7, hot water enters from the heat exchange water supply pipe 103, passes through the water inlet pipe 204, and enters the terminal water inlet pipe 107, and then enters the return pipe 205 from the terminal water outlet pipe 108 after being used by the user end 109, and then enters and returns to the heat exchange tube assembly 102 from the heat exchange return pipe 104, and so on, so that the heat exchange tube assembly 102 can provide heating for the user end 109. At this time, the drainage device on the energy tower assembly 101 is opened to drain the liquid inside the equipment, so as to avoid the situation that the liquid inside the energy tower assembly 101 freezes in winter and causes the pipe to be frozen and cracked. The liquid inside the pipe can be drained by opening the drainage cover 208 at the bottom of the bending part 207, so as to reduce the water accumulation in the pipe and reduce the situation that the pipe is frozen and cracked. The bending part 207 with a bending arrangement can reduce the impact force of the water flow on the pipe when re-injecting liquid or cleaning the pipe, so as to protect the energy tower assembly 101 and the connecting pipe.

[0048] When it is necessary to switch between the energy tower assembly 101 and the heat exchange tube assembly 102, the hand wheel 214 on the protective shell 210 is rotated, and the hand wheel 214 drives the worm wheel 212 to rotate through the worm 213, and the worm wheel 212 drives the switching plate 203 to rotate in the shell 202 through the support rod 211, thereby completing the switching of the pipeline. When the switching plate 203 rotates in the shell 202, the indicator block 209 will rotate together and slide in the arc groove 217. There are arrows at both ends of the indicator block 209 to indicate the connection status. When the terminal water inlet pipe 107 and the heat exchange water supply pipe 103 are connected, the indicator block 209 will be located between the terminal water inlet pipe 107 and the heat exchange water supply pipe 103, and the arrows at both ends will point to the terminal water inlet pipe 107 and the heat exchange water supply pipe 103. Figure 3 .

[0049] The above-mentioned embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A medium-deep underground heat exchange coupling energy tower heating device, comprising an energy tower assembly (101) and a heat exchange tube assembly (102), characterized in that: The heat exchange pipe assembly (102) is connected to a heat exchange water supply pipe (103) and a heat exchange water return pipe (104); the energy tower assembly (101) is connected to an energy tower water supply pipe (105) and an energy tower water return pipe (106); one end of the energy tower water supply pipe (105), the energy tower water return pipe (106), the heat exchange water supply pipe (103) and the heat exchange water return pipe (104) is connected to a circuit switching device (201); an outer wall of the circuit switching device (201) is connected to a terminal water inlet pipe (107) and a terminal water outlet pipe (108); one end of the terminal water inlet pipe (107) and the terminal water outlet pipe (108) is connected to a user end (109); The switching device (201) comprises an outer shell (202) and an internal rotating switching disk (203); a water inlet pipe (204), a water return pipe (205) and a maintenance pipe (206) penetrating the outer wall are provided inside the switching disk (203); the maintenance pipe (206) is located between the water inlet pipe (204) and the water return pipe (205); The maintenance pipe (206) is provided with a bending portion (207), and the bottom of the path changing plate (203) is provided with a drainage cover (208) penetrating through the bending portion (207).

2. A medium-deep underground heat exchange coupling energy tower heating device according to claim 1, characterized in that: The top end of the switching plate (203) is fixedly connected to a support rod (211), the top end of the support rod (211) is fixedly connected to a worm wheel (212), the outer wall of the worm wheel (212) is transmission-connected to a worm (213), and the worm (213) is fixedly connected to a hand wheel plate (214).

3. A medium-deep underground heat exchange coupling energy tower heating device according to claim 2, characterized in that: A turntable frame (215) and a support frame (216) are fixedly connected to the top of the housing (202); the turntable frame (215) is supported between the housing (202) and the worm wheel (212); and the worm (213) is rotatably connected to the support frame (216).

4. A medium-deep underground heat exchange coupling energy tower heating device according to claim 3, characterized in that: The housing (202) is provided with an arc-shaped groove (217), the interior of the arc-shaped groove (217) is slidably connected with an indicator block (209), and the indicator block (209) is fixedly connected to the switching plate (203).

5. The medium-deep underground heat exchange coupling energy tower heating device according to claim 1 is characterized in that: An energy tower heat pump main unit (110) is installed on the energy tower water supply pipe (105) and the energy tower water return pipe (106), and a geothermal heat pump main unit (111) is installed on the heat exchange water supply pipe (103) and the heat exchange water return pipe (104).

6. A medium-deep underground heat exchange coupling energy tower heating device according to claim 5, characterized in that: An energy tower circulation pump (112) is installed on the energy tower return water pipe (106), a geothermal circulation pump (113) is installed on the heat exchange return water pipe (104), and a heating circulation pump (114) is installed on the terminal water inlet pipe (107).

7. A medium-deep underground heat exchange coupling energy tower heating device according to claim 4, characterized in that: A protective shell (210) is installed on the top of the housing (202) and is sleeved on the outside of the worm gear (212).

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