CN115200261A - Ground source heat pump heat replenishing device based on solar energy - Google Patents

Abstract

The invention relates to the technical field of ground source heat pump systems, in particular to a ground source heat pump heat supplement device based on solar energy, comprising a solar heating device, a battery pack, a controller, a heat pump unit, an energy consumption end, a buried pipe heat exchanger and A water storage tank, the solar heating device includes an L-shaped installation frame, a water inlet tank is installed at the top of the vertical section of the L-shaped installation frame, and an outlet tank is installed at the end of the horizontal section of the L-shaped installation frame, so the A plurality of heat collecting tubes are arranged between the water inlet tank and the water outlet box, the bottom of the L-shaped mounting frame is provided with a rotating mechanism, and the solar panels are installed on both sides of the L-shaped mounting frame. And the second design of circulating medium improves the utilization rate of solar energy and improves the effect of heat supplementation, and the two groups of circulating medium will not be in contact, so as to avoid the contact between cold and heat, which will affect the heat supplementary effect. effect.

Description

A solar-based ground source heat pump heat supplement device

technical field

The invention relates to the technical field of ground source heat pump systems, in particular to a solar energy-based ground source heat pump heat supplement device.

Background technique

Ground source heat pump technology is a renewable energy utilization technology, because ground source heat pump is a heating and air conditioning system that uses shallow geothermal resources on the earth's surface (usually less than 400 meters deep) as a cold and heat source to convert energy. Shallow surface geothermal resources can be called geothermal energy, which refers to the low-temperature potential thermal energy contained in the surface soil, groundwater or rivers and lakes absorbing solar energy and geothermal energy. The shallow surface is a giant solar collector that collects 47% of the sun's energy, more than 500 times more than humans use each year. It is not limited by regions, resources, etc., and it is really large in quantity and ubiquitous. This near-infinite renewable energy stored in the shallow surface of the earth makes ground energy also a form of clean renewable energy. When the ground source heat pump system is running, it does not consume or pollute water, does not require boilers, does not require cooling towers, and does not require a site for stacking fuel waste, and has significant environmental benefits. Compared with the air source heat pump, the power consumption of the ground source heat pump unit can also be reduced by more than 40%; compared with the electric heating, it can be reduced by more than 70%. The boiler is 75% more efficient. The ground source heat pump system can provide heating, air conditioning and cooling, and can also provide domestic hot water. One machine can be used for multiple purposes. One system can replace the original two sets or systems of boiler and air conditioning. It is suitable for heating and air conditioning of villa houses.

The biggest shortcoming of the current ground source heat pump technology is the problem of "soil thermal imbalance". The northern region has a large demand for heating in winter, and absorbs a lot of heat from the soil. After long-term operation, it will lead to an imbalance of soil temperature and affect the surrounding ecology. To solve the problem of soil temperature drop, high-grade heat sources are mostly used to supplement, and the main forms include electric boilers, electric heaters and natural gas boilers. The solar ground source heat pump heat supplement device improves the above problems.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a ground source heat pump heat supplement device based on solar energy to solve the problems raised in the above background art.

To achieve the above object, the present invention provides the following technical solutions:

A solar-based ground source heat pump heat supplement device, comprising a solar heating device, a battery pack, a controller, a heat pump unit, an energy-consuming end, a buried pipe heat exchanger and a water storage tank, the solar heating device includes a L A water inlet tank is installed at the top of the vertical section of the L-shaped installation frame, and a water outlet tank is installed at the end of the horizontal section of the L-shaped installation frame. The bottom of the L-shaped mounting frame is provided with a rotating mechanism, the solar panels are installed on both sides of the L-shaped mounting frame, the battery pack and the solar panel are electrically connected to the controller, and the water outlet box The water outlet of the heat exchanger is connected with a water inlet pipe 1, and the water inlet of the buried pipe heat exchanger is connected with a water inlet pipe 2. The other interface of the tee pipe fitting 1 is connected with the water outlet of the heat pump unit through the water inlet pipe 3, the water outlet of the buried pipe heat exchanger is connected with the return water pipe 1, and the water inlet of the water storage tank is connected with the return water pipe 1. The second water pipe, the first end of the return water pipe is connected with the second end of the return water pipe through the tee pipe fitting 2, and the other interface of the tee pipe fitting 2 is connected with the water inlet of the heat pump unit through the return water pipe 4, and the storage The water outlet of the water tank and the water inlet of the water inlet tank are connected by three return pipes, the heat pump unit is also connected to the energy end through the pipe, and the heat pump unit and the energy end are electrically connected to the controller.

Preferably, the first water inlet pipe is provided with a solenoid valve 1, the water inlet pipe 2 is provided with a water pump 1, the return water pipe 1 is provided with a pump 3, and the return water pipe 2 is provided with a solenoid valve 1 Valve 2, the water return pipe 3 is provided with a water pump 2 and a solenoid valve 3, the water inlet pipe 3 is provided with a solenoid valve 4, and the return water pipe 4 is provided with a solenoid valve 5.

Preferably, a temperature sensor and a liquid level sensor are arranged in the water outlet tank and the water inlet tank, and the temperature sensor and the liquid level sensor are electrically connected to the controller.

Preferably, a circulating medium 1 is arranged in the solar heating device, a circulating medium 2 is arranged in the water storage tank, and a circulating medium 3 is arranged in the heat pump unit.

Preferably, the rotating mechanism includes a base, a bottom plate, a fixed plate, a rotating motor and a rotating disk, the bottom of the base is installed with a bottom plate, the front and rear ends of the bottom of the bottom plate are mounted with a fixed plate, and two parts of the fixed plate are installed. Both ends are fixed on the ground by anchor bolts, the center of the top of the base is provided with a mounting groove, and a rotating motor is installed in the mounting groove, and the output shaft of the rotating motor is vertically upward and the top is connected to the bottom of the rotating disk. The center is fixedly connected, and the rotating disk is installed at the bottom of the L-shaped mounting frame.

Preferably, the opposite surfaces of the rotating disk and the base are provided with circular grooves corresponding to positions, the center of the circular groove is located on the central axis of the output shaft of the rotating electrical machine, and a circular groove is arranged between the two circular grooves. Several balls.

Preferably, the L-shaped mounting frame is further mounted with a solar energy automatic light chasing device used in cooperation with the rotating mechanism, and the solar energy automatic light tracking device and the rotating motor are electrically connected with the controller.

Preferably, the buried tube heat exchanger adopts a U-shaped vertical buried tube.

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

In the present invention, the solar heating device can use solar energy to heat the circulating medium 1 and circulating medium 2, and then transport the hot water to the buried pipe heat exchanger through the pipeline to supplement heat for the soil, so that the soil temperature is balanced. , and through the design of circulating medium 1 and circulating medium 2, the utilization rate of solar energy is improved, and the heat supplement effect is improved, and the two groups of circulating medium will not be in contact, so as to avoid the contact between cold and heat, which will affect the heat supplement effect, and solar clean energy is used to heat the soil. Supplement, to achieve the role of energy saving and environmental protection.

Description of drawings

1 is a schematic diagram of the system structure of a solar-based ground source heat pump heat supplement device of the present invention;

2 is a schematic structural diagram of a solar heating device in a solar-based ground source heat pump heat supplement device of the present invention;

3 is a schematic structural diagram of a rotating mechanism of a solar heating device in a solar-based ground source heat pump heat supplement device of the present invention.

In the figure: 1. Solar heating device; 101, L-shaped mounting frame; 102, water outlet tank; 103, water inlet tank; 104, heat collecting pipe; 105, solar panel; 106, automatic solar energy tracking device; 107, rotating mechanism ;1071, base; 1072, bottom plate; 1073, fixed plate; 1074, rotating motor; 1075, rotating plate; 1076, circular groove; 1077, ball; 2, battery pack; 3, controller; 4, heat pump unit; 5 , energy end; 6, buried heat exchanger; 7, water inlet pipe one; 701, solenoid valve one; 8, water inlet pipe two; 801, water pump one; 9, return water pipe one; 901, water pump three ; 10, return water pipeline 2; 1001, solenoid valve 2; 11, water storage tank; 12, return water pipeline 3; 1201, water pump 2; 1202, solenoid valve 3; 13, water inlet pipeline 3; 1301, solenoid valve 4 ; 14. Four return water pipes; 1401, five solenoid valves.

Detailed ways

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

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the related drawings. Several embodiments of the invention are shown in the drawings. However, the present invention may be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and similar expressions are used herein for illustrative purposes only.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terms used herein in the description of the present invention are for the purpose of describing specific embodiments only, and are not intended to limit the present invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

As shown in Figures 1-3, the present invention provides a technical solution: a solar-based ground source heat pump heat supplement device, comprising a solar heating device 1, a battery pack 2, a controller 3, a heat pump unit 4, an energy-consuming end 5, The buried pipe heat exchanger 6 and the water storage tank 11, the buried pipe heat exchanger 6 adopts a U-shaped structure for vertical buried pipes, and the solar heating device 1 includes an L-shaped mounting frame 101, and the top of the vertical section of the L-shaped mounting frame 101 is A water inlet tank 103 is installed, a water outlet tank 102 is installed at the end of the horizontal section of the L-shaped mounting frame 101, a plurality of heat collecting pipes 104 are arranged between the water inlet tank 103 and the water outlet tank 102, and the bottom of the L-shaped installation frame 101 is provided with a The rotating mechanism 107, the solar panels 105 are installed on both sides of the L-shaped mounting frame 101, the battery pack 2 and the solar panel 105 are electrically connected with the controller 3, and the solar energy is converted through the solar panel 105, the battery pack 2 and the controller 3. In order to store the electric energy in the battery pack 2, it can supply power to the equipment that needs electricity for the entire device. 28. One end of the water inlet pipe 28 is connected with the water inlet pipe 17 through the tee pipe fitting 1, and the other interface of the tee pipe fitting 1 is connected with the water outlet of the heat pump unit 4 through the water inlet pipe 3 13, and the buried pipe is heat exchanged. The water outlet of the device 6 is connected with a return water pipe 9, and the water inlet of the water storage tank 11 is connected with a return water pipe 2 10. The other interface of the second is connected with the water inlet of the heat pump unit 4 through the return water pipe 4 14, the water outlet of the water storage tank 11 and the water inlet of the water inlet tank 103 are connected through the return water pipe 3 12, and the heat pump unit 4 is also connected by The pipeline is connected with the energy-consuming end 5 , and the heat pump unit 4 and the energy-consuming end 5 are electrically connected with the controller 3 .

A solenoid valve 1 701 is arranged on the water inlet pipe 1 7, a water pump 1 801 is arranged on the water inlet pipe 2 8, a water pump 3 901 is arranged on the return water pipe 1 9, and a solenoid valve 2 1001 is arranged on the return water pipe 2 10, The water return pipe 3 12 is provided with a second water pump 1201 and a solenoid valve 3 1202, the water inlet pipe 3 13 is provided with a solenoid valve 4 1301, the return water pipe 4 14 is provided with a solenoid valve 5 1401, a solenoid valve 1 701, and a water pump 1 801 , the third water pump 901 , the second solenoid valve 1001 , the second water pump 1201 , the third solenoid valve 1202 , the fourth solenoid valve 1301 and the fifth solenoid valve 1401 are electrically connected with the controller 3 .

A temperature sensor and a liquid level sensor are arranged in the water outlet tank 102 and the water inlet tank 103 , and the temperature sensor and the liquid level sensor are electrically connected to the controller 3 .

The solar heating device 1 is provided with a circulating medium 1, the water storage tank 11 is provided with a circulating medium 2, and the heat pump unit 4 is provided with a circulating medium 3. The circulating medium 1, circulating medium 2 and circulating medium 3 are all containing antifreeze. water.

As shown in Figures 1 and 2, the solar heating device 1 can use solar energy to heat the circulating medium 1 and circulating medium 2, and then transport the hot water to the buried pipe heat exchanger 6 through pipes to supplement heat for the soil , so that the soil temperature is balanced, and the utilization of solar energy is improved through the design of circulating medium 1 and circulating medium 2, and the effect of heat supplementation is improved, and the two sets of circulating medium will not be in contact, so as to avoid contact between cold and heat, which will affect the effect of heat supplementation. Solar cleaning is adopted. The energy supplements the heat for the soil, realizing the effect of energy saving and environmental protection.

Two working states of the present invention:

1. When the heat pump unit 4 is in a suspended state, solenoid valve 4 1301 and solenoid valve 5 1401 are closed, solenoid valve 2 1001 and solenoid valve 3 1202 are closed, solenoid valve 1 701 is turned on, water pump 1 801 works, water pump 2 1201 and water pump 3 901 stop, so that the circulating medium heated by solar energy in the solar heating device 1 is transported into the buried heat exchanger 6 to supplement heat for the soil. When the circulating medium in the solar heating device 1 is completely discharged, the solenoid valve 701 Turn off, the water pump 1 801 stops, then the solenoid valve 3 1202 is turned on, the water pump 2 1201 works, and all the circulating medium 2 in the water storage tank 11 is transported into the solar heating device 1 for heating. When the circulating medium 2 is heated to a usable temperature After that, the solenoid valve 2 1001 is opened, the pump 3 901 works, and the circulating medium after heat exchange in the buried pipe heat exchanger 6 is transported to the water storage tank 11 for storage, and then the solenoid valve 1 701 is opened, and the water pump 1 801 works. The circulating medium 2 in the solar heating device 1 is transported to the buried pipe heat exchanger 6 to supplement heat for the soil. Through the above-mentioned reciprocating operation, the utilization rate of solar energy can be improved through the design of two groups of circulating medium, and the heat supplement effect can be improved. , and the two groups of circulating media will not be in contact, so as to avoid contact between cold and heat, which will affect the effect of heat supplementation.

2. When the heat pump unit 4 is in working state, the solenoid valve 1 701, the solenoid valve 2 1001 and the solenoid valve 3 1202 are closed, the solenoid valve 4 1301 and the solenoid valve 5 1401 are turned on, the water pump 2 1201 is stopped, and the water pump 1 801 and the water pump 3 901 work. , the solar heating device 1 is stopped, so that the circulating medium 3 circulates between the buried heat exchanger 6 and the heat pump unit 4 to take on the heat source of the heat pump unit 4 .

In this embodiment, as shown in FIGS. 2 and 3 , the rotating mechanism 107 includes a base 1071 , a bottom plate 1072 , a fixed plate 1073 , a rotating motor 1074 and a rotating disk 1075 . A fixing plate 1073 is installed on both ends, and both ends of the fixing plate 1073 are fixed on the ground by anchor bolts. A mounting slot is provided in the center of the top of the base 1071, and a rotating motor 1074 is installed in the mounting slot, and the output shaft of the rotating motor 1074 is installed. It is vertically upward and the top end is fixedly connected with the center of the bottom of the rotating disk 1075 , and the rotating disk 1075 is installed on the bottom of the L-shaped mounting frame 101 .

The opposite surfaces of the rotating disk 1075 and the base 1071 are provided with circular grooves 1076 corresponding to their positions. The center of the circular groove 1076 is located on the central axis of the output shaft of the rotary electric machine 1074, and several balls are arranged between the two circular grooves 1076. 1077, the circular groove 1076 and the ball 1077 are provided to improve the rotation stability of the rotating disk 1075.

The L-shaped mounting frame 101 is also mounted with a solar automatic light tracker 106 used in conjunction with the rotating mechanism 107 . The solar energy automatic light tracker 106 and the rotating motor 1074 are electrically connected to the controller 3 .

As shown in FIG. 2 and FIG. 3 , the solar tracker 106 can track the trajectory of sunlight, and then transmit the signal to the controller 3 to control the rotating motor 1074 to work and drive the rotating disk 1075 to rotate, thereby adjusting the solar heating device 1 in the light-facing position, prolong the time of using the radiant heat of the sun and improve the utilization rate of solar energy.

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, and substitutions can be made in these embodiments without departing from the principle and spirit of the invention and modifications, the scope of the present invention is defined by the appended claims and their equivalents.

Claims (8)

1. The utility model provides a ground source heat pump heat replenishing device based on solar energy which characterized in that: the solar energy heat supply system comprises a solar energy heat supply device (1), a storage battery pack (2), a controller (3), a heat pump unit (4), an energy utilization end (5), a ground heat exchanger (6) and a water storage tank (11), wherein the solar energy heat supply device (1) comprises an L-shaped mounting frame (101), a water inlet tank (103) is installed at the top of the vertical section of the L-shaped mounting frame (101), a water outlet tank (102) is installed at the end part of the horizontal section of the L-shaped mounting frame (101), a plurality of heat collecting tubes (104) are arranged between the water inlet tank (103) and the water outlet tank (102), a rotating mechanism (107) is arranged at the bottom of the L-shaped mounting frame (101), solar panels (105) are installed on two sides of the L-shaped mounting frame (101), the storage battery pack (2) and the solar panels (105) are electrically connected with the controller (3), a water outlet of the water outlet tank (102) is connected with a first water inlet pipeline (7), a water inlet of the ground heat exchanger (6) is connected with a second water inlet pipeline (8), the second water inlet pipeline (8) is connected with one end of the first water inlet pipeline (7) through a first tee pipe fitting, another port of the first tee pipe fitting is connected with a water return water outlet pipe (9) of the heat pump unit (4), and a water return pipe (9) of the ground heat exchanger (9), the water inlet of the water storage tank (11) is connected with a second water return pipeline (10), the first water return pipeline (9) is connected with one end of the second water return pipeline (10) through a second three-way pipe fitting, the other interface of the second three-way pipe fitting is connected with the water inlet of the heat pump unit (4) through a fourth water return pipeline (14), the water outlet of the water storage tank (11) is connected with the water inlet of the water inlet tank (103) through a third water return pipeline (12), the heat pump unit (4) is further connected with the energy utilization end (5) through a pipeline, and the heat pump unit (4) and the energy utilization end (5) are electrically connected with the controller (3).

2. The solar-based ground source heat pump heat supplementing device of claim 1, wherein: the water-saving device is characterized in that a first electromagnetic valve (701) is arranged on the first water inlet pipeline (7), a first water pump (801) is arranged on the second water inlet pipeline (8), a third water pump (901) is arranged on the first water return pipeline (9), a second electromagnetic valve (1001) is arranged on the second water return pipeline (10), a second water pump (1201) and a third electromagnetic valve (1202) are arranged on the third water return pipeline (12), a fourth electromagnetic valve (1301) is arranged on the third water inlet pipeline (13), and a fifth electromagnetic valve (1401) is arranged on the fourth water return pipeline (14).

3. The solar-based ground source heat pump heat supplementing device of claim 1, wherein: temperature sensor and level sensor are provided with in out water tank (102) and the case (103) of intaking, temperature sensor and level sensor and controller (3) electric connection.

4. The solar-based ground source heat pump heat supplementing device of claim 1, wherein: a first circulation medium is arranged in the solar heat supply device (1), a second circulation medium is arranged in the water storage tank (11), and a third circulation medium is arranged in the heat pump unit (4).

5. The solar-based ground source heat pump heat supplementing device of claim 1, wherein: slewing mechanism (107) include base (1071), bottom plate (1072), fixed plate (1073), rotating electrical machines (1074) and rolling disc (1075), bottom plate (1072) are installed to the bottom of base (1071), fixed plate (1073) are all installed at the front and back both ends of bottom plate (1072) bottom, the both ends of fixed plate (1073) all are fixed subaerial through anchor bolt, the center department at base (1071) top is provided with the mounting groove, install rotating electrical machines (1074) in the mounting groove, the vertical fixed connection of center department that upwards sets up and the bottom of top and rolling disc (1075) of output shaft of rotating electrical machines (1074), the bottom at L type mounting bracket (101) is installed in rolling disc (1075).

6. The solar-based ground source heat pump heat supplementing device of claim 5, wherein: the opposite surfaces of the rotating disc (1075) and the base (1071) are provided with circular grooves (1076) corresponding in position, the circle center of the circular grooves (1076) is located on the central axis of the output shaft of the rotating motor (1074), and a plurality of balls (1077) are arranged between the two circular grooves (1076).

7. The solar-based ground source heat pump heat supplementing device of claim 5, wherein: still install on L type mounting bracket (101) and follow spot ware (106) with slewing mechanism (107) cooperation solar energy automation that uses, solar energy is automatic to follow spot ware (106) and rotating electrical machines (1074) and controller (3) electric connection.

8. The solar-based ground source heat pump heat supplementing device of claim 1, wherein: the ground heat exchanger (6) adopts a U-shaped structure to vertically bury the pipe.

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