Geothermal water geothermal heating device capable of adjusting water supply temperature

Abstract

The invention discloses a geothermal water geothermal heating device capable of adjusting the water supply temperature. The geothermal water geothermal heating device comprises a water supply pipe and a water return pipe. The water inlet end of the water supply pipe is connected with a geothermal water supply tank, and the water outlet end of the water supply pipe is connected with a water distributor; the water inlet end of the water return pipe is connected with a water collector, and the water outlet end of the water return pipe is connected with a geothermal water recharge tank; a connecting pipe is communicated between the water supply pipe and the water return pipe, a proportional diverter valve is mounted on the water return pipe, and one end of the connecting pipe is communicated with the proportional diverter valve; a water pump, a flow control valve, a water mixing tank, a water thermometer and an electromagnetic control valve are sequentially installed on the water supply pipe in the water flow direction, and a controller is installed on the water pump. A flow meter is mounted between the proportional flow divider valve and the water mixing tank; the water pump, the flow control valve, the water thermometer, the electromagnetic control valve and the proportional flow divider valve are all electrically connected with the controller. Water after heat dissipation and high-temperature geothermal water are neutralized, heat of the geothermal water can be fully utilized, the heat energy utilization rate of the geothermal water is high, and the consumption of the geothermal water is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of heating devices, and in particular to a geothermal heating device with geothermal water capable of adjusting the water supply temperature. Background Art

[0002] Geothermal resources are a valuable natural wealth that can be used for power generation, heating, showers, fish farming and many other purposes. The hot water temperature required for direct use of geothermal energy is relatively low, and both medium and low temperature geothermal resources can be used. Geothermal water is groundwater extracted from deep underground through artificial drilling. Most geothermal water has a temperature of more than 70-80℃. When geothermal water is directly used for geothermal heating, the high temperature of the floor heating water will accelerate the aging of the floor heating equipment and reduce the life of the floor heating equipment. Therefore, when geothermal water is used as floor heating water for heating, it needs to be cooled and cooled.

[0003] The traditional way of cooling geothermal water is to actively dissipate the temperature to the outside environment by air cooling before the geothermal water is introduced into the floor heating pipe. However, this cooling method will cause the loss of geothermal energy, increase the consumption of geothermal water, and reduce the thermal energy utilization rate of geothermal water.

[0004] Therefore, there is an urgent need to provide a geothermal heating device with geothermal water that can adjust the water supply temperature to solve the problems existing in the above-mentioned prior art. Summary of the invention

[0005] The purpose of the present invention is to provide a geothermal heating device with geothermal water capable of adjusting the water supply temperature, so as to solve the problems existing in the above-mentioned prior art.

[0006] To achieve the above-mentioned purpose, the present invention provides a geothermal heating device with adjustable water supply temperature, comprising a water supply pipe and a return pipe; the water inlet end of the water supply pipe is connected to a geothermal water supply tank, and the water outlet end of the water supply pipe is connected to a water distributor; the water inlet end of the return pipe is connected to a water collector, and the water outlet end of the return pipe is connected to a geothermal water recharging tank; a connecting pipe is connected between the water supply pipe and the return pipe, a proportional diverter valve is installed on the return pipe, and one end of the connecting pipe is connected to the proportional diverter valve; a mixing tank is installed on the water supply pipe, and the other end of the connecting pipe extends to The water supply pipe extends into the mixing tank; a water pump, a flow control valve, a water temperature meter and an electromagnetic control valve are installed in sequence on the water supply pipe along the water flow direction; the water pump and the flow control valve are arranged between the geothermal water supply tank and the connecting pipe, the water temperature meter and the electromagnetic control valve are arranged between the mixing tank and the water distributor, and a controller is installed on the water pump; a flow meter is installed between the proportional diverter valve and the mixing tank; the water pump, the flow control valve, the water temperature meter, the electromagnetic control valve and the proportional diverter valve are all electrically connected to the controller.

[0007] Preferably, a water mixing structure is provided inside the water mixing tank, and the water mixing structure is used to mix the water in the water supply pipe and the connecting pipe.

[0008] Preferably, the water mixing structure includes a water mixing channel fixedly arranged on the inner wall of the water mixing tank, the water mixing channel includes a water inlet chamber and a water mixing chamber, a fixing plate is provided at the connection between the water inlet chamber and the water mixing chamber, the fixing plate is sleeved on the connecting pipe, and the connecting pipe is rotatably connected to a water outlet head at one end close to the fixing plate, and the water outlet head is located in the mixing water chamber; a main pipe and a plurality of branch pipes are provided inside the water outlet head, the main pipe is connected to the connecting pipe, and the plurality of branch pipes are all connected to the main pipe, and the branch pipes extend to the outer surface of the water outlet head.

[0009] Preferably, the water outlet head is a shuttle-shaped structure.

[0010] Preferably, a plurality of spiral flow channels are provided on the outer surface of the water outlet head, and the plurality of spiral flow channels are arranged at equal intervals along the circumference of the water outlet head; and the water outlet of the branch pipe is arranged between two adjacent spiral flow channels.

[0011] Preferably, a dispersion net is fixedly provided in the mixing water tank, and the dispersion net is arranged on a side of the mixing water channel away from the connecting pipe.

[0012] Preferably, the mixing water tank is connected with a slag discharge pipe, the slag discharge pipe is located at the bottom of one side of the mixing water flow channel close to the connecting pipe, and a valve is installed on the slag discharge pipe.

[0013] Preferably, an insulation layer is provided on the outer walls of the water supply pipe, the water return pipe and the mixing tank.

[0014] Compared with the prior art, the present invention has the following advantages and technical effects:

[0015] The geothermal heating device with adjustable water supply temperature provided by the present invention can fully utilize the heat of geothermal water by neutralizing the water after geothermal heat dissipation with the high-temperature geothermal water. During the process, except for the necessary diversion of geothermal water to the geothermal water reinjection tank, part of the heat of the geothermal water will be lost, and the remaining heat is mostly dissipated to users, so the thermal energy utilization rate of the geothermal water is high; and the low-temperature geothermal water in the return pipe is refluxed through the connecting pipe, which also reduces the consumption of geothermal water, thereby solving the technical problems existing in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a schematic structural diagram of a geothermal heating device with geothermal water capable of adjusting the water supply temperature of the present invention;

[0018] Figure 2 It is a schematic diagram of the internal structure of the water mixing tank of the present invention;

[0019] In the figure: 1. Water supply pipe; 2. Return pipe; 3. Water distributor; 4. Water collector; 5. Connecting pipe; 6. Proportional diverter valve; 7. Mixing tank; 8. Water pump; 9. Flow control valve; 10. Water temperature meter; 11. Solenoid control valve; 12. Controller; 13. Flow meter; 14. Mixing flow channel; 15. Fixed plate; 16. Water outlet; 17. Main pipeline; 18. Branch pipeline; 19. Dispersion net; 20. Slag discharge pipe. DETAILED DESCRIPTION

[0020] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. The described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. The present invention will be described in detail below with reference to the drawings and in combination with the embodiments.

[0021] like Figure 1 to Figure 2As shown, the present invention provides a geothermal heating device with adjustable water supply temperature, comprising a water supply pipe 1 and a return pipe 2; the water inlet end of the water supply pipe 1 is connected to a geothermal water supply tank, and the water outlet end of the water supply pipe 1 is connected to a water distributor 3; the water inlet end of the return pipe 2 is connected to a water collector 4, and the water outlet end of the return pipe 2 is connected to a geothermal water recharging tank; a connecting pipe 5 is connected between the water supply pipe 1 and the return pipe 2, a proportional diverter valve 6 is installed on the return pipe 2, and one end of the connecting pipe 5 is connected to the proportional diverter valve 6; a mixing tank 7 is installed on the water supply pipe 1, and the other end of the connecting pipe 5 extends to the water supply pipe 1. pipe 1 and extends into the mixing tank 7; a water pump 8, a flow control valve 9, a water thermometer 10 and an electromagnetic control valve 11 are installed in sequence on the water supply pipe 1 along the water flow direction, the water pump 8 and the flow control valve 9 are arranged between the geothermal water supply tank and the connecting pipe 5, the water thermometer 10 and the electromagnetic control valve 11 are arranged between the mixing tank 7 and the water distributor 3, and a controller 12 is installed on the water pump 8; a flow meter 13 is installed between the proportional diverter valve 6 and the mixing tank 7; the water pump 8, the flow control valve 9, the water thermometer 10, the electromagnetic control valve 11 and the proportional diverter valve 6 are all electrically connected to the controller 12.

[0022] When the present invention is in use, the geothermal water is sent to the mixing tank 7 through the water pump 8, and enters the user's geothermal pipeline through the water distributor 3. The water in the user's geothermal pipeline is collected by the water collector 4, and the water is sent to the proportional diverter valve 6 through the return pipe 2. The proportional diverter valve 6 plays a similar function as a one-way valve, and flows back to the mixing tank 7 through the connecting pipe 5. In this process, if the water temperature detected by the water thermometer 10 meets the required temperature, the water in the return pipe 2 completely flows back to the mixing tank 7, and the new geothermal water supply on the water supply pipe 1 is stopped. When the temperature detected by the water thermometer 10 is lower than the required temperature, part of the water is diverted through the proportional diverter valve 6 to enter the geothermal water recharging tank, and the other part continues to enter the mixing tank 7. At the same time, the water volume entering the geothermal water recharging tank is supplemented by the water pump 8 to ensure the water temperature requirement. At this time, the water with the lowest temperature is mixed with the newly added geothermal water in the mixing tank 7, so that the water temperature detected by the water thermometer 10 is more accurate.

[0023] A further optimization scheme is to provide a water mixing structure inside the water mixing tank 7 to mix the water in the water supply pipe 1 and the connecting pipe 5 in order to fully mix the returning low-temperature water and the high-temperature geothermal water.

[0024] A further optimized solution is provided, the water mixing structure includes a water mixing channel 14 fixedly arranged on the inner wall of the water mixing tank 7, the water mixing channel 14 includes a water inlet chamber and a water mixing chamber, a fixing plate 15 is provided at the connection between the water inlet chamber and the water mixing chamber, the fixing plate 15 is sleeved on the connecting pipe 5, and the connecting pipe 5 is rotatably connected to an outlet head 16 at one end close to the fixing plate 15, and the outlet head 16 is located in the water mixing chamber; a main pipe 17 and a plurality of branch pipes 18 are provided inside the outlet head 16, the main pipe 17 is connected to the connecting pipe 5, and the plurality of branch pipes 18 are all connected to the main pipe 17, and the branch pipes 18 extend to the outer surface of the outlet head 16.

[0025] When in use, geothermal water enters the mixing tank 7 through the water supply pipe 1. During this process, the water in the connecting pipe 5 inside the water supply pipe 1 will be preliminarily heated, and the low-temperature water enters the mixing channel 14 through the branch pipe 18 on the water outlet head 16. The geothermal water is mixed with the low-temperature water in the mixing channel 14, and the branch pipe 18 has a diversion effect, so that the low-temperature water is better mixed with the geothermal water. At the same time, the interior of the mixing tank 7 is narrowed at the mixing chamber part of the mixing channel 14, which can increase the water flow rate and better drive the water flowing out of the branch pipe 18 to mix; at the same time, the high-speed water flow flowing out of the mixing channel 14 can form a vortex at the rear end of the mixing channel 14, reducing the precipitation of impurities in the mixing tank 7 at this position.

[0026] According to a further optimization scheme, in order to increase the flow rate of the geothermal water in the mixed water channel 14, the water outlet head 16 is a shuttle-shaped structure.

[0027] According to a further optimization scheme, a plurality of spiral flow channels are provided on the outer surface of the water outlet head 16, and the plurality of spiral flow channels are arranged at equal intervals along the circumference of the water outlet head 16; and the water outlet of the branch pipe 18 is arranged between two adjacent spiral flow channels.

[0028] By arranging a spiral flow channel on the surface of the water outlet head 16, the water outlet head 16 can be rotated under the action of the geothermal water, thereby further improving the mixing effect of the cold and hot water.

[0029] According to a further optimization scheme, a dispersion net 19 is fixedly provided in the water mixing tank 7 , and the dispersion net 19 is arranged on a side of the water mixing channel 14 away from the connecting pipe 5 .

[0030] By providing the dispersion net 19, the high-speed water flow out of the water mixing channel 14 is dispersed here, thereby further improving the mixing effect.

[0031] To further optimize the solution, the water mixing tank 7 is connected with a slag discharge pipe 20 , which is located at the bottom of one side of the water mixing channel 14 close to the connecting pipe 5 , and a valve is installed on the slag discharge pipe 20 .

[0032] After the geothermal water enters the mixing tank 7, a temporary storage chamber can be formed in the mixing tank 7 under the action of the mixing water channel 14. The flow rate of the geothermal water slows down here, which helps to deposit impurities in the geothermal water. By regularly opening the valve on the slag discharge pipe 20, the impurities here can be discharged, which helps to maintain the geothermal heating effect for users.

[0033] To further optimize the solution, in order to reduce the heat loss of geothermal water, an insulation layer is provided on the outer walls of the water supply pipe 1, the return pipe 2 and the mixing tank 7.

[0034] The geothermal heating device with adjustable water supply temperature provided by the present invention can fully utilize the heat of geothermal water by neutralizing the water after geothermal heat dissipation with the high-temperature geothermal water. During the process, except for the necessary diversion of geothermal water to the geothermal water reinjection tank, part of the heat of the geothermal water will be lost, and the remaining heat is mostly dissipated to users, so the thermal energy utilization rate of geothermal water is high; and the low-temperature geothermal water in the return pipe 2 is refluxed through the connecting pipe 5, which also reduces the consumption of geothermal water, thereby solving the technical problems existing in the prior art.

[0035] The above are only preferred specific implementations of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by any technician familiar with the technical field within the technical scope disclosed by the present invention should be covered within the protection scope of the present invention.

Claims

1. A geothermal heating device with adjustable water supply temperature, characterized in that: The utility model comprises a water supply pipe (1) and a water return pipe (2); the water inlet end of the water supply pipe (1) is connected to a geothermal water supply tank, and the water outlet end of the water supply pipe (1) is connected to a water distributor (3); the water inlet end of the water return pipe (2) is connected to a water collector (4), and the water outlet end of the water return pipe (2) is connected to a geothermal water recharging tank; a connecting pipe (5) is connected between the water supply pipe (1) and the water return pipe (2), a proportional diverter valve (6) is installed on the water return pipe (2), and one end of the connecting pipe (5) is connected to the proportional diverter valve (6); a mixing tank (7) is installed on the water supply pipe (1), and the other end of the connecting pipe (5) extends into the water supply pipe (1) and extends into the mixing tank (7); the water supply pipe (1) is provided with a connecting pipe (5) and a connecting pipe (5) is provided on the water return pipe (2). A water pump (8), a flow control valve (9), a water temperature meter (10) and an electromagnetic control valve (11) are installed in sequence along the water flow direction; the water pump (8) and the flow control valve (9) are arranged between the geothermal water supply tank and the connecting pipe (5); the water temperature meter (10) and the electromagnetic control valve (11) are arranged between the mixing tank (7) and the water distributor (3); a controller (12) is installed on the water pump (8); a flow meter (13) is installed between the proportional diverter valve (6) and the mixing tank (7); the water pump (8), the flow control valve (9), the water temperature meter (10), the electromagnetic control valve (11) and the proportional diverter valve (6) are all electrically connected to the controller (12).

2. The geothermal heating device with adjustable water supply temperature according to claim 1, characterized in that: A water mixing structure is provided inside the water mixing tank (7), and the water mixing structure is used to mix the water in the water supply pipe (1) and the connecting pipe (5).

3. The geothermal heating device with adjustable water supply temperature according to claim 2, characterized in that: The water mixing structure comprises a water mixing channel (14) fixedly arranged on the inner wall of the water mixing tank (7), the water mixing channel (14) comprising a water inlet chamber and a water mixing chamber, a fixing plate (15) is arranged at the connection between the water inlet chamber and the water mixing chamber, the fixing plate (15) is sleeved on the connecting pipe (5), one end of the connecting pipe (5) close to the fixing plate (15) is rotatably connected to a water outlet head (16), the water outlet head (16) is located in the water mixing chamber; a main pipe (17) and a plurality of branch pipes (18) are arranged inside the water outlet head (16), the main pipe (17) is connected to the connecting pipe (5), the plurality of branch pipes (18) are all connected to the main pipe (17), and the branch pipes (18) extend to the outer surface of the water outlet head (16).

4. The geothermal heating device with adjustable water supply temperature according to claim 3, characterized in that: The water outlet head (16) is a shuttle-shaped structure.

5. The geothermal heating device with adjustable water supply temperature according to claim 4, characterized in that: The outer surface of the water outlet head (16) is provided with a plurality of spiral flow channels, and the plurality of spiral flow channels are arranged at equal intervals along the circumference of the water outlet head (16); the water outlet of the branch pipe (18) is arranged between two adjacent spiral flow channels.

6. The geothermal heating device with adjustable water supply temperature according to claim 3, characterized in that: A dispersion net (19) is fixedly arranged in the water mixing tank (7), and the dispersion net (19) is arranged on a side of the water mixing channel (14) away from the connecting pipe (5).

7. The geothermal heating device with adjustable water supply temperature according to claim 3, characterized in that: The water mixing tank (7) is connected to a slag discharge pipe (20), the slag discharge pipe (20) is located at the bottom of one side of the water mixing channel (14) close to the connecting pipe (5), and a valve is installed on the slag discharge pipe (20).

8. The geothermal heating device with adjustable water supply temperature according to claim 1, characterized in that: The outer walls of the water supply pipe (1), the water return pipe (2) and the water mixing tank (7) are all provided with a heat insulation layer.

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