CN217464615U - Geothermal heating system and equipment - Google Patents

Abstract

The utility model relates to a geothermal energy heating field, concretely relates to geothermal heating system and equipment, include, the box, set up heat exchange module, first switch, second switch and the intercommunication pipeline in the box and set up geothermal water supply interface, user's water supply interface, geothermal water return interface and the user's return water interface on the box. Opening and closing of first switch and second switch on the intercommunication pipeline through the control setting, carry the heating medium that geothermal water supply interface provided to user's water supply interface or heat exchange module, step heat supply has been realized, satisfy the heating demand, and simultaneously, heat exchange module, first switch, second switch and intercommunication pipeline are connected according to above-mentioned connected mode and are set up in the box of a standard, set up geothermal water supply interface and user's water supply interface simultaneously on the box, realize the exchange of heating medium between user and the geothermal heating equipment, the cost of transportation and installation has been reduced.

Description

Geothermal heating system and equipment

Technical Field

The application relates to the field of geothermal energy heating, in particular to a geothermal heating system and geothermal heating equipment.

Background

Compared with renewable energy sources such as wind energy, solar energy and the like, the geothermal resource has the advantages of safety, stability, cleanness, low carbon, renewability, no influence of seasons and day and night changes and the like, and meanwhile, the geothermal resource also has the advantages of wide distribution, large storage capacity and the like.

The traditional geothermal heating equipment has the disadvantages of complex structure, high difficulty in transportation and installation, difficulty in responsibility definition and high construction cost. In traditional middle and deep geothermal heating system, mostly adopt hydrothermal type heating method to heat, long-term operation causes the difficult problem of geothermal water recharge.

SUMMERY OF THE UTILITY MODEL

Based on the above research, the present application provides a geothermal heating system and apparatus to improve the above problems.

Embodiments of the present application may be implemented by:

in a first aspect, an embodiment of the present application provides a geothermal heating system, including a heat exchange module, a first switch, a second switch, a communication pipe, a geothermal water supply interface, a user water supply interface, a geothermal water return interface, and a user water return interface, where the heat exchange module includes an evaporator and a condenser;

the geothermal water supply interface is respectively connected with the first switch and the second switch through the communicating pipeline, the first switch is connected with the user water supply interface through the communicating pipeline, the second switch is connected with the first interface of the evaporator through the communicating pipeline, the second interface of the evaporator is connected with the geothermal water return interface through the communicating pipeline, the user water return interface is respectively connected with the geothermal water return interface and the first interface of the condenser through the communicating pipeline, and the second interface of the condenser is connected with the user water supply interface through the communicating pipeline.

In some embodiments of the present application, the geothermal heating system further comprises a third switch and a fourth switch;

when the first switch and the third switch are opened, the second switch and the fourth switch are closed, the geothermal water supply interface is communicated with the first switch through the communicating pipeline, the first switch is communicated with the user water supply interface through the communicating pipeline, the user water return interface is communicated with the third switch through the communicating pipeline, the third switch is communicated with the geothermal water return interface through the communicating pipeline, and the third switch is arranged on the communicating pipeline between the user water return interface and the second interface of the evaporator;

when the second switch and the fourth switch are opened, the first switch and the third switch are closed, the geothermal water supply interface is communicated with the second switch through the communicating pipeline, the second switch is communicated with the first interface of the evaporator through the communicating pipeline, the second interface of the evaporator is communicated with the geothermal water return interface through the communicating pipeline, the user water return interface is communicated with the fourth switch through the communicating pipeline, the fourth switch is communicated with the first interface of the condenser through the communicating pipeline, and the second interface of the condenser is communicated with the user water supply interface through the communicating pipeline.

In some embodiments of the present application, the geothermal heating system further comprises a heating module;

the heating module is connected with the user water supply interface and the user water return interface through the communication pipeline respectively, and is used for heating a heating medium provided by the user water return interface and conveying the heating medium obtained through heating to the user water supply interface.

In some embodiments of the present application, the geothermal heating system further comprises a fifth switch and a sixth switch;

the user water supply interface is connected with the fifth switch through the communicating pipeline, and the fifth switch is connected with the heating module through the communicating pipeline;

the user backwater interface is connected with the sixth switch through the communicating pipeline, and the fifth switch is connected with the heating module through the communicating pipeline.

In some embodiments of the present application, the geothermal heating system further comprises a first power module;

the first interface of the first power module is communicated with the geothermal water supply interface through the communication pipeline;

and the second interface of the first power module is respectively connected with the first switch and the second switch through the communication pipeline.

In some embodiments of the present application, the geothermal heating system further comprises a second power module;

the first interface of the second power module is connected with the fourth switch through the communication pipeline;

and the second interface of the second power module is communicated with the first interface of the condenser through the communication pipeline.

In some embodiments of the present application, the geothermal heating system further comprises an external heating medium supply module and a water supply interface;

the water supplementing interface is used for supplementing a heating medium;

the first interface of the external heating medium supply module is communicated with the water supplementing interface through the communicating pipeline, the second interface of the external heating medium supply module is communicated with the first power module and the second power module through the communicating pipeline respectively, and the external heating medium supply module is used for supplementing heating media.

In some embodiments of the present application, the off-board heating medium replenishment module comprises a third power module and a fourth power module;

the first interface of the third power module is communicated with the water supplementing interface through the communicating pipeline, and the second interface of the third power module is communicated with the first interface of the first power module through the communicating pipeline;

and the first interface of the fourth power module is communicated with the water supplementing interface through the communicating pipeline, and the second interface of the fourth power module is communicated with the first interface of the second power module through the communicating pipeline.

In a second aspect, the present application provides a geothermal heating apparatus comprising: box body

The system comprises a box body, a heat exchange module, a first switch, a second switch and a communication pipeline, wherein the box body is internally provided with the heat exchange module, the first switch, the second switch and the communication pipeline;

the geothermal water supply interface is respectively connected with the first switch and the second switch through the communicating pipelines, the first switch is connected with the user water supply interface through the communicating pipelines, the second switch is connected with the first interface of the evaporator through the communicating pipelines, the second interface of the evaporator is connected with the geothermal water return interface through the communicating pipelines, the user water return interface is respectively connected with the geothermal water return interface and the first interface of the condenser through the communicating pipelines, and the second interface of the condenser is connected with the user water supply interface through the communicating pipelines.

In some embodiments of the present application, a third switch and a fourth switch are further disposed in the box body;

when the first switch and the third switch are opened, the second switch and the fourth switch are closed, the geothermal water supply interface is communicated with the first switch through the communicating pipeline, the first switch is communicated with the user water supply interface through the communicating pipeline, the user water return interface is communicated with the third switch through the communicating pipeline, the third switch is communicated with the geothermal water return interface through the communicating pipeline, and the third switch is arranged on the communicating pipeline between the user water return interface and the second interface of the evaporator;

when the second switch and the fourth switch are opened, the first switch and the third switch are closed, the geothermal water supply interface is communicated with the second switch through the communicating pipeline, the second switch is communicated with the first interface of the evaporator through the communicating pipeline, the second interface of the evaporator is communicated with the geothermal water return interface through the communicating pipeline, the user water return interface is communicated with the fourth switch through the communicating pipeline, the fourth switch is communicated with the first interface of the condenser through the communicating pipeline, and the second interface of the condenser is communicated with the user water supply interface through the communicating pipeline.

In some embodiments of the present application, a heating module is further disposed on the box body;

the heating module is connected with the user water supply interface and the user water return interface through the communication pipeline respectively, and is used for heating a heating medium provided by the user water return interface and conveying the heating medium obtained through heating to the user water supply interface.

In some embodiments of the present application, a fifth switch and a sixth switch are further disposed in the box body;

the user water supply interface is connected with the fifth switch through the communicating pipeline, and the fifth switch is connected with the heating module through the communicating pipeline;

the user water return interface is connected with the sixth switch through the communicating pipeline, and the fifth switch is connected with the heating module through the communicating pipeline.

In some embodiments of the present application, a first power module is disposed within the tank;

the first interface of the first power module is communicated with the geothermal water supply interface through the communication pipeline;

and the second interface of the first power module is respectively connected with the first switch and the second switch through the communication pipeline.

In some embodiments of the present application, a second power module is further disposed within the tank;

the first interface of the second power module is connected with the fourth switch through the communication pipeline;

and the second interface of the second power module is communicated with the first interface of the condenser through the communication pipeline.

In some embodiments of the present application, the box body is further provided with an external heating medium replenishment module and a water replenishment interface;

the water supplementing interface is used for supplementing a heating medium;

the first interface of the external heating medium supply module is communicated with the water supplementing interface through the communicating pipeline, the second interface of the external heating medium supply module is communicated with the first power module and the second power module through the communicating pipeline respectively, and the external heating medium supply module is used for supplementing heating media.

In some embodiments of the present application, the off-board heating medium replenishment module comprises a third power module and a fourth power module;

the first interface of the third power module is communicated with the water supplementing interface through the communicating pipeline, and the second interface of the third power module is communicated with the first interface of the first power module through the communicating pipeline;

and the first interface of the fourth power module is communicated with the water supplementing interface through the communicating pipeline, and the second interface of the fourth power module is communicated with the first interface of the second power module through the communicating pipeline.

The geothermal heating system and the geothermal heating equipment provided by the embodiment of the application comprise a heat exchange module, a first switch, a second switch, a communicating pipeline, a geothermal water supply interface, a user water supply interface, a geothermal water return interface and a user water return interface, wherein the heat exchange module comprises an evaporator and a condenser; the geothermal water supply interface is respectively connected with the first switch and the second switch through communicating pipelines, the first switch is connected with the user water supply interface through the communicating pipelines, the second switch is connected with the first interface of the evaporator through the communicating pipelines, the second interface of the evaporator is connected with the geothermal water return interface through the communicating pipelines, the user water return interface is respectively connected with the geothermal water return interface and the first interface of the condenser through the communicating pipelines, and the second interface of the condenser is connected with the user water supply interface through the communicating pipelines. So, through opening and closing of control setting first switch and second switch on the intercommunication pipeline, carry the heating medium that geothermal water supply interface provided to user's water supply interface or heat transfer module, step heat supply has been realized, user's heating demand is satisfied, and simultaneously, heat transfer module, first switch, second switch and intercommunication pipeline are connected according to above-mentioned connected mode and are set up in the box of a standard, set up geothermal water supply interface and user's water supply interface simultaneously on the box, realize the exchange of heating medium between user and the geothermal heating equipment, use deep geothermol power + water source heat pump step heat supply mode for building heating, construction cost has both been reduced, the difficult problem of geothermal water recharge has also been solved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

The technical solutions in the present application will be described clearly and completely with reference to the accompanying drawings in the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

FIG. 1 is a schematic diagram of a geothermal heating system according to an embodiment of the present disclosure;

FIG. 2 is a schematic diagram of another geothermal heating system according to an embodiment of the present disclosure;

FIG. 3 is a schematic diagram of another geothermal heating system according to an embodiment of the present disclosure;

FIG. 4 is a schematic diagram of another geothermal heating system according to an embodiment of the present disclosure;

FIG. 5 is a schematic diagram of another geothermal heating system according to an embodiment of the present disclosure;

FIG. 6 is a schematic diagram of another geothermal heating system according to an embodiment of the present application;

FIG. 7 is a schematic diagram of another geothermal heating system according to an embodiment of the present disclosure;

FIG. 8 is a schematic diagram of another geothermal heating system according to an embodiment of the present application;

FIG. 9 is a schematic structural diagram of a geothermal heating apparatus according to an embodiment of the present application;

icon: 10-a heat exchange module; 11-an evaporator; 12-a condenser; 21-a first switch; 22-a second switch; 23-a third switch; 24-a fourth switch; 25-a fifth switch; 26-a sixth switch; 30-a box body; 40-heating module; 51-a first power module; 52-a second power module; 53-a third power module; 54-a fourth power module; 61-geothermal water supply interface; 62-a user water supply interface; 63-geothermal water return interface; 64-user backwater interface; 65-water supplement interface.

Detailed Description

In the description of the present application, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be considered as limiting the present application. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

In this application, the word "exemplary" is used to mean "serving as an example, instance, or illustration. Any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments. The following description is presented to enable any person skilled in the art to make and use the application. In the following description, details are set forth for the purpose of explanation. It will be apparent to one of ordinary skill in the art that the present application may be practiced without these specific details. In other instances, well-known structures and processes are not set forth in detail in order to avoid obscuring the description of the present application with unnecessary detail. Thus, the present application is not intended to be limited to the embodiments shown, but is to be accorded the widest scope consistent with the principles and features disclosed herein.

Compared with renewable energy sources such as wind energy, solar energy and the like, the geothermal resource has the advantages of safety, stability, cleanness, low carbon, renewability, no influence of seasons and day and night changes and the like, and meanwhile, the geothermal resource also has the advantages of wide distribution, large storage capacity and the like.

At present, for heat energy heating, geothermal energy development and utilization are actively promoted, that is, total amount control and regional classification management are implemented according to the principle of irrigation-fixed mining, irrigation-mining balance and hydrothermal balance and according to the geothermal formation mechanism, geothermal resource grade and resource quantity and the ecological environment condition of underground water, and the middle-deep layer geothermal energy heating is promoted in a mode of combining concentration and dispersion.

Aiming at the heating of the ground heat of the middle and deep layers, the traditional ground heat heating equipment has the disadvantages of complex structure, high difficulty in transportation and installation, difficulty in responsibility definition and high construction cost. In traditional middle and deep geothermal heating system, mostly adopt hydrothermal type heating method to heat, long-term operation causes the difficult problem of geothermal water recharge.

In view of the above problem, please refer to fig. 1, in which fig. 1 is a schematic structural diagram of a geothermal heating system according to the present embodiment. As shown in fig. 1, the geothermal heating system provided by this embodiment includes a heat exchange module 10, a first switch 21, a second switch 22, a communication pipe, a geothermal water supply interface 61, a user water supply interface 62, a geothermal water return interface 63, and a user water return interface 64, where the heat exchange module 10 includes an evaporator 11 and a condenser 12; the geothermal water supply interface 61 is respectively connected with the first switch 21 and the second switch 22 through communicating pipelines, the first switch 21 is connected with the user water supply interface 62 through a communicating pipeline, the second switch 22 is connected with the first interface of the evaporator 11 through a communicating pipeline, the second interface of the evaporator 11 is connected with the geothermal water return interface 63 through a communicating pipeline, the user water return interface 64 is respectively connected with the geothermal water return interface 63 and the first interface of the condenser 12 through communicating pipelines, and the second interface of the condenser 12 is connected with the user water supply interface 62 through a communicating pipeline.

In this embodiment, the geothermal water supply interface 61 is used to supply a heating medium (such as liquid water) and deliver the heating medium to the user water supply interface 62 through a communication pipe, so as to realize first-step heating.

In this embodiment, the heating medium that geothermal water supply interface 61 provided can also carry the heating medium to heat exchange module 10 through the intercommunication pipeline, carries out heat exchange treatment to the heating medium by heat exchange module 10 to promote the temperature of heating medium, carry the heating medium after heat exchange treatment to user's water supply interface 62 through the intercommunication pipeline, realize the heating of second step.

Wherein, heat exchange module 10 can be heat exchange device, include promptly to carry out heat exchange through the evaporation condensation, realize the heating to heating medium, the equipment that is used for carrying out heat exchange can be evaporative condenser 12, evaporative condenser 12 includes evaporimeter 11 and condenser 12, evaporimeter 11 is used for carrying out the heat absorption to heating medium and handles, handles the heat transfer that obtains to condenser 12 with the heat absorption, condenser 12 carries out the heating medium based on the heat of evaporimeter 11 conveying and handles.

In this embodiment, the first step heating is to directly supply the heating medium to the user water supply interface 62 to realize heating, the second step heating is to perform heat exchange processing on the heating medium supplied from the geothermal water supply interface 61, and the heating medium after the heat exchange processing is supplied to the user water supply interface 62 through the communication pipe.

In an alternative embodiment, the selection of the first or second heating ramp may be based on the temperature of the heating medium. In detail, a temperature sensor may be disposed at the geothermal water supply interface 61, and the temperature sensor is used to obtain the temperature of the heating medium, for example, when the obtained temperature of the heating medium is higher than 30 ℃, the second switch 22 is turned off by controlling the first switch 21 to be turned on, so that the geothermal heating system performs heating based on the first step heating mode, the heating medium provided by the geothermal water supply interface 61 flows into the user water supply interface 62 through a flow pipe, and the heating medium flows into the geothermal water return interface 63 through the user water return interface 64 after the user end completes a thermal cycle; if the temperature of the heating medium is not higher than 30 ℃, the second switch 22 is controlled to be opened, the first switch 21 is controlled to be closed, so that the geothermal heating system performs heating based on a second step heating mode, the heating medium provided by the geothermal water supply interface 61 flows into the first interface of the evaporator 11 through a circulation pipeline, after the heat absorption treatment of the evaporator 11, the heating medium flows into the geothermal water return interface 63 through the second interface of the evaporator 11, meanwhile, the heating medium flowing out of the user water return interface flows into the first interface of the condenser 12, and after the heating treatment of the condenser 12, the heating medium after the heating treatment is conveyed to the user water supply interface 62 through the circulation pipeline.

In this embodiment, the first switch 21 and the second switch 22 may be electric valves or stop valves, and the control of the stop valves is implemented by manually opening or closing the valves to open or close the first switch 21 and the second switch 22; for the control of the electric valve, the opening or closing of the first switch 21 and the second switch 22 is controlled by a control circuit, wherein the control circuit can be realized by a PLC circuit and comprises functions of manual and automatic control mode switching, fault alarm and the like.

The geothermal heating system and the geothermal heating equipment provided by the embodiment of the application comprise a heat exchange module, a first switch, a second switch, a communicating pipeline, a geothermal water supply interface, a user water supply interface, a geothermal water return interface and a user water return interface, wherein the heat exchange module comprises an evaporator and a condenser; the geothermal water supply interface is respectively connected with the first switch and the second switch through communicating pipelines, the first switch is connected with the user water supply interface through the communicating pipelines, the second switch is connected with the first interface of the evaporator through the communicating pipelines, the second interface of the evaporator is connected with the geothermal water return interface through the communicating pipelines, the user water return interface is respectively connected with the geothermal water return interface and the first interface of the condenser through the communicating pipelines, and the second interface of the condenser is connected with the user water supply interface through the communicating pipelines. So, through opening and closing of control setting first switch and second switch on the intercommunication pipeline, carry the heating medium that geothermal water supply interface provided to user's water supply interface or heat transfer module, step heat supply has been realized, user's heating demand is satisfied, and simultaneously, heat transfer module, first switch, second switch and intercommunication pipeline are connected according to above-mentioned connected mode and are set up in the box of a standard, set up geothermal water supply interface and user's water supply interface simultaneously on the box, realize the exchange of heating medium between user and the geothermal heating equipment, use deep geothermol power + water source heat pump step heat supply mode for building heating, construction cost has both been reduced, the difficult problem of geothermal water recharge has also been solved.

In order to control the geothermal return water flowing out from the user return water interface 64, referring to fig. 2, in this embodiment, the geothermal heating system further includes a third switch and a fourth switch;

when the first switch 21 and the third switch 23 are opened, the second switch 22 and the fourth switch 24 are closed, the geothermal water supply interface 61 is communicated with the first switch 21 through a communicating pipeline, the first switch 21 is communicated with the user water supply interface 62 through a communicating pipeline, the user water return interface 64 is communicated with the third switch 23 through a communicating pipeline, the third switch 23 is communicated with the geothermal water return interface 63 through a communicating pipeline, and the third switch 23 is arranged on the communicating pipeline between the user water return interface 64 and the second interface of the evaporator 11;

when the second switch 22 and the fourth switch 24 are opened, the first switch 21 and the third switch 23 are closed, the geothermal water supply interface 61 is communicated with the second switch 22 through a communicating pipeline, the second switch 22 is communicated with the first interface of the evaporator 11 through a communicating pipeline, the second interface of the evaporator 11 is communicated with the geothermal water return interface 63 through a communicating pipeline, the user water return interface 64 is communicated with the fourth switch 24 through a communicating pipeline, the fourth switch 24 is communicated with the first interface of the condenser 12 through a communicating pipeline, and the second interface of the condenser 12 is communicated with the user water supply interface 62 through a communicating pipeline.

When the geothermal heating system performs heating based on the first step heating mode, the heating medium needs to directly flow into the user water supply interface 62 from the geothermal water supply interface 61 through the communication pipeline, and at this time, the first switch 21 is controlled to be opened, and the second switch 22 is controlled to be closed; in order to realize circulation of the heating medium between the user and the geothermal well, when the heating medium needs to flow into the geothermal water return interface 63 from the user water return interface 64 through the communicating pipeline, at the moment, the third switch 23 is controlled to be opened, the fourth switch 24 is controlled to be closed, and first-step heating is realized, wherein the third switch 23 can be an electric valve or a stop valve, and the fourth switch 24 can be an electric valve or a stop valve. To save costs, the fourth switch 24 is often a stop valve.

In order to improve the heating effect, when the geothermal heating system heats based on the second step heating mode, the heating using the first step heating mode is stopped, when the geothermal heating system heats based on the second step heating mode, the heating medium needs to flow into the first interface of the evaporator 11 from the geothermal water supply interface 61 through the communication pipe, the evaporator 11 absorbs heat of the heating medium, the heating medium after heat absorption process flows into the geothermal water return interface 63 through the second interface of the evaporator 11, in the process, the first switch 21 needs to be controlled to be closed, the second switch 22 needs to be controlled to be opened, in order to realize the circulation of the heating medium between the user and the geothermal well, the heating medium needs to flow into the first interface of the condenser 12 from the user water return interface 64 through the communication pipe, the condenser 12 heats the heating medium, and the heating medium after heat treatment flows into the user water supply interface 62 through the second interface of the condenser 12, in the process, the third switch 23 needs to be controlled to be closed, and the fourth switch 24 needs to be controlled to be opened, so as to realize second step heating. The heat obtained by the heat absorption treatment of the heating medium by the evaporator 11 is used for the heating treatment of the heating medium by the condenser 12, and the evaporator 11 is connected with the condenser 12 through a component with good heat conductivity to complete the heat exchange treatment.

In this application embodiment, the in-process of heating to the user, may have because external weather changes leads to the temperature to rise, for making the user have better sense organ experience, need be at the most comfortable temperature of human body with temperature control (18 ℃ in winter), in this application embodiment, the degree of opening of all switches is adjustable, for example the switch opens two-thirds, half or one-third, then can heat the user based on the most comfortable temperature of human body, through the degree that each switch of artificial or through control circuit control opened, with the regulation heating temperature. It is noted that in the present embodiment, since the control of each switch is independent, the degree of opening of each switch may be the same or different.

In extreme cold weather, the problem of insufficient heating still exists, and therefore, in order to meet the heating requirement of the customer, the geothermal heating system further includes a heating module 40, please refer to fig. 3, wherein the heating module 40 is respectively communicated with a user water supply interface 62 and a user water return interface 64 through communication pipes; the heating module 40 is used for heating the heating medium provided by the user water return interface 64 and delivering the heating medium obtained by the heating treatment to the user water supply interface 62.

The heating module 40 may be a boiler, the user backwater interface 64 may transmit the heating medium to the heating module 40 through a communication pipe, and the heating module 40 may perform heating processing on the heating medium based on an electrode heating method, and transmit the heating medium after the heating processing to the user water supply interface 62.

Since the heating module 40 is activated only when heating is insufficient, in order to save energy, the activation of the heating module 40 needs to be controlled, please refer to fig. 4, in the embodiment of the present application, the thermal heating system further includes a fifth switch 25 and a sixth switch 26;

the user water supply interface 62 is connected with the fifth switch 25 through a communicating pipeline, and the fifth switch 25 is connected with the heating module through a communicating pipeline;

the user water return interface 64 is connected with the sixth switch 26 through a communicating pipeline, and the fifth switch 25 is connected with the heating module through a communicating pipeline.

The heating module 40 is used as an auxiliary heating module and is arranged on a geothermal heating system, wherein a pressure measuring device is arranged on the heating module 40, the pressure measuring device is used for measuring the pressure of the heating module 40, the pressure measuring device is used for obtaining the pressure value in the heating module 40, when the pressure value in the heating module 40 is greater than or equal to a preset pressure threshold value, the heating module 40 starts to work, at the moment, the fifth switch 25 and the sixth switch 26 are controlled to be opened, when the pressure value in the heating module 40 is less than the preset pressure threshold value, the heating module 40 stops working, at the moment, the fifth switch 25 and the sixth switch 26 are controlled to be closed, wherein the fifth switch 25 and the sixth switch 26 can be electric valves, also can be stop valves, and for saving cost, the fifth switch 25 and the sixth switch 26 are usually stop valves.

The heating module 40 may further be provided with a water level gauge, the water level gauge is used for measuring the height of the heating medium in the heating module 40, when the height of the heating medium in the heating module 40 is greater than or equal to a preset height threshold, the heating module 40 starts to operate, at this time, the fifth switch 25 and the sixth switch 26 are controlled to be turned on, and when the height of the heating medium in the heating module 40 is less than the preset height threshold, the heating module 40 stops operating, at this time, the fifth switch 25 and the sixth switch 26 are controlled to be turned off.

It is noted that the heating module 40 heats the heating medium in an auxiliary heating mode, and thus the heating module 40 can heat the user in the first or second step heating mode as the auxiliary heating mode.

When the auxiliary heating mode is combined with the first-step heating mode to heat a user, a heating medium needs to directly flow into the user water supply interface 62 from the geothermal water supply interface 61 through the communication pipeline, at the moment, the controlled first switch 21 is opened, the second switch 22 is closed, in order to complete circulation of the heating medium between the user and a geothermal well, the heating medium needs to flow into the geothermal water return interface 63 from the user water return interface 64 through the communication pipeline, at the moment, the third switch 23 is controlled to be opened, and the fourth switch 24 is closed; meanwhile, the heating module needs to operate, the fifth switch 25 and the sixth switch 26 are controlled to be opened, in the heating module, when the height of the heating medium flowing out from the user water return interface 64 in the heating module is greater than or equal to a preset height threshold value or the pressure value is greater than or equal to a preset pressure threshold value, the heating module starts to operate, the heating medium is heated in an electrode heating mode, the heated heating medium is conveyed to the user water supply interface 62 through a communicating pipeline, at the moment, the heating medium provided by the user geothermal water supply interface 61 and the heating medium provided by the heating module can be obtained by the user geothermal water supply interface 62, and the common operation of the first step heating mode and the auxiliary heating mode is realized.

When the auxiliary heating mode is combined with the second step heating mode to heat a user, the heating medium needs to flow into the first interface of the evaporator 11 from the geothermal water supply interface 61 through the communication pipeline, and then flows into the geothermal water return interface 63 from the second interface of the evaporator 11 through the communication pipeline, in the process, the first switch 21 is controlled to be closed, the second switch 22 is controlled to be opened, in order to complete the circulation of the heating medium between the user and the geothermal well, the heating medium needs to flow into the first interface of the condenser 12 from the user water return interface 64 through the communication pipeline, and then flows into the user water supply interface 62 from the second interface of the condenser 12 through the communication pipeline, in the process, the third switch 23 is controlled to be closed, the fourth switch 24 is controlled to be opened, meanwhile, the heating module needs to be operated, the fifth switch 25 and the sixth switch 26 are controlled to be opened, in the heating module, when the height of the heating medium flowing out from the user water return interface 64 in the heating module is greater than or equal to a preset height threshold value or a pressure value which is greater than or equal to a preset height threshold value When the pressure is equal to or higher than the preset pressure threshold, the heating module starts to operate, the heating medium is heated in an electrode heating mode, the heated heating medium is conveyed to the user water supply interface 62 through the communicating pipeline, and at the moment, the user water supply interface 62 can obtain the heating medium provided by the second interface of the condenser 12 and the heating medium provided by the heating module, so that the common operation of the first-step heating mode and the auxiliary heating mode is realized.

In order to realize rapid circulation of the heating medium in the communication pipe, so that the heating medium with higher temperature continuously flows into the user side to realize better heating effect, please refer to fig. 5, the geothermal heating system further comprises a first power module 51;

the first interface of the first power module 51 is communicated with the geothermal water supply interface 61 through a communication pipeline;

the second port of the first power module 51 is connected to the first switch 21 and the second switch 22 through communication pipes, respectively.

The first power module 51 may be a raw water pressurizing pump, and is configured to pressurize the heating medium provided by the geothermal water supply interface 61 so as to rapidly circulate the heating medium in the communication pipe, the heating medium flows into the first interface of the first power module 51 through the geothermal water supply interface 61 via the communication pipe, the first power module 51 pressurizes the heating medium, and the pressurized heating medium is respectively delivered to the first interface of the evaporator 11 and the user water supply interface 62 through the second interface of the first power module 51.

In an alternative embodiment, referring to fig. 6, the geothermal heating system further includes a second power module 52.

The first interface of the second power module 52 is connected with the fourth switch 24 through a communication pipeline;

the second port of the second power module 52 communicates with the first port of the condenser 12 through a communication conduit.

The second power module 52 may be a system circulation pump, and when the fourth switch 24 is opened, the second power module is configured to pressurize the heating medium provided by the user water return interface 64, so that the heating medium flows rapidly through the communication pipe, the heating medium flows into the first interface of the second power module 52 through the user water return interface 64, the second power module 52 pressurizes the heating medium, and the pressurized heating medium is conveyed to the first interface of the condenser 12 through the second interface of the second power module 52.

Because the connecting pipe is corroded and each interface is possibly poor in tightness, a heating medium flows in the connecting pipe and runs off in a circulation process between the geothermal heating system and a user, and the heating medium needs to be supplemented to ensure the stability of the heating process, so that the geothermal heating system further comprises an external heating medium supplying module and a water supplementing interface 65;

the water replenishing interface 65 is used for replenishing heating medium;

the first interface of the external heating medium supply module is communicated with the water supplementing interface 65 through a communicating pipeline, the second interface of the external heating medium supply module is respectively communicated with the first power module 51 and the second power module 52 through communicating pipelines, and the external heating medium supply module is used for supplementing heating media.

In the geothermal heating system, since the pressure in the communication pipe is large, if the supplementary heating medium is not pressurized, the supplementary heating medium is hard to flow into the communication pipe, and therefore, referring to fig. 7, the external heating medium supply module includes a third power module 53 and a fourth power module 54;

a first interface of the third power module 53 is communicated with the water supplementing interface 65 through a communicating pipeline, and a second interface of the third power module 53 is communicated with a first interface of the first power module 51 through a communicating pipeline;

the first port of the fourth power module 54 is communicated with the water replenishing port 65 through a communication pipeline, and the second port of the fourth power module 54 is communicated with the first port of the second power module 52 through a communication pipeline.

The third power module 53 may be a water replenishing pump, the water replenishing pump is used for pressurizing the heating medium replenished by the water replenishing interface 65, so that the heating medium flows into the first interface of the first power module 51, the heating medium flows into the first interface of the third power module 53 through the water replenishing interface 65, the third power module 53 pressurizes the heating medium, and the pressurized heating medium is conveyed to the first interface of the first power module 51 through the second interface of the third power module 53.

The fourth power module 54 may be a water replenishing pump, and the water replenishing pump is configured to pressurize the heating medium replenished by the water replenishing interface 65, so that the heating medium flows into the first interface of the second power module 52, the heating medium flows into the first interface of the fourth power module 54 through the water replenishing interface 65, the fourth power module 54 pressurizes the heating medium, and the pressurized heating medium is conveyed to the first interface of the second power module 52 through the second interface of the fourth power module 54.

In the embodiment of the present application, the third power module 53 and the fourth power module 54 are provided, so that the heating medium can be flexibly replenished according to the actual condition of the heating medium in the first power module 51 and the second power module 52, and for example, the heating medium can be replenished to the first power module 51 alone or the heating medium can be replenished to the second power module 52 alone, or the heating medium can be replenished to the first power module 51 and the second power module 52 simultaneously.

By controlling the on or off of the switch, the heating medium provided by the geothermal water supply interface 61 is conveyed to the user water supply interface 62 or the heat exchange module 10, so that the cascade heat supply is realized, and the heating requirement is met.

In one embodiment, referring to fig. 8, a specific application scenario of a geothermal heating system is described.

The heating module 40 provides three heating modes, which are a first step heating mode, a second step heating mode, and an auxiliary heating mode. The first and second heating modes may be selected based on the temperature of the heating medium flowing out of the geothermal water supply connection 61, or may be selected based on a difference in time period.

Assuming that the temperature of the heating medium is higher than 30 ℃ when the temperature is used as a condition for selecting the heating mode, controlling the first switch 21 and the third switch 23 to be opened, the second switch 22 and the fourth switch 24 to be closed, so that the geothermal heating system heats based on the first step heating mode, when the first step heating mode is in use, the geothermal water supply interface 61 is communicated with the first interface of the first power module 51, the heating medium flows into the first power module 51 through the geothermal water supply interface 61 through a flow pipe, the first power module 51 pressurizes the heating medium, the second interface of the first power module 51 is connected with the first interface of the first switch 21 and the first interface of the second switch 22 respectively, the second interface of the first switch 21 is connected with the user water supply interface 62, and when the first switch 21 is opened and the second switch 22 is closed, the geothermal water supply interface 61 is communicated with the user water supply interface 62, the heating medium flowing out of the geothermal water supply connection 61 flows into the user water supply connection 62 through the flow pipe.

The heating medium flows into the user water supply interface 62 through the communicating pipe and then flows out from the user water return interface 64, the user water return interface 64 is respectively connected with the first interface of the third switch 23 and the first interface of the fourth switch 24, the second interface of the third switch 23 is connected with the geothermal water return interface 63, and when the third switch 23 is opened and the fourth switch 24 is closed, the heating medium flowing out from the user water return interface 64 flows into the geothermal water return interface 63 through the communicating pipe.

And if the temperature of the heating medium is not higher than 30 ℃, controlling the first switch 21 and the third switch 23 to be closed and the second switch 22 and the fourth switch 24 to be opened so that the geothermal heating system heats based on the second step heating mode. When in the second step heating mode, the geothermal water supply interface 61 is communicated with the first interface of the first power module, the heating medium flows into the first power module 51 through the geothermal water supply interface 61 via the flow pipe, the first power module 51 pressurizes the heating medium, the second interface of the first power module 51 is respectively connected with the first interface of the first switch 21 and the first interface of the second switch 22, when the first switch 21 is closed and the second switch 22 is opened, the heating medium flows into the evaporator 11 through the communication pipe, the evaporator 11 performs heat absorption treatment on the heating medium, the heating medium subjected to heat absorption treatment flows out from the second interface of the evaporator 11, the second interface of the evaporator 11 is respectively connected with the second interface of the third switch 23 and the geothermal water return interface 63, at this time, the third switch 23 is controlled to be closed, and the heating medium flowing out from the second interface of the evaporator 11 flows into the geothermal water return interface 63 through the communication pipe.

The first interface of the fourth switch 24 is connected with the user backwater interface 64, the second interface of the fourth switch 24 is connected with the first interface of the second power module 52, the fourth switch 24 is controlled to be opened, the heating medium flowing out from the user backwater interface 64 flows into the first interface of the second power module 52 through a communicating pipeline, the second power module 52 pressurizes the heating medium, the pressurized heating medium flows into the first interface of the condenser 12 from the second interface of the second power module 52, the condenser 12 heats the flowing heating medium, and the heated heating medium is conveyed to the user backwater interface 64 through the second interface of the condenser 12.

The heating module 40 is installed as an auxiliary heating module in a geothermal heating system, and is used for performing supplementary heating on a user in an extremely cold weather, wherein whether the auxiliary heating mode is selected for heating or not can be selected based on the height of a heating medium in the heating module or the pressure of the heating module.

If the pressure of the heating module is selected, when the pressure value of the heating module is greater than or equal to the preset pressure threshold value, the fifth switch 25 and the sixth switch 26 are controlled to be opened, so that the heating module starts to operate, when the heating module starts to operate, the heating medium flowing out of the user water return interface 64 is transmitted to the heating module 40, the heating module 40 heats the heating medium, and the heated heating medium is transmitted to the user water supply interface 62.

Because the connecting pipe is corroded and the interfaces may have poor closeness, a heating medium flows in the connecting pipe and runs off in a circulation process between the geothermal heating system and a user, and the heating medium needs to be supplemented to ensure the stability of the heating process, so the geothermal heating system is further provided with an external heating medium supplementing module, the external heating medium supplementing module comprises a water supplementing interface 65, a third power module 53 and a fourth power module 54, the third power module 53 can be a water supplementing pump, the water supplementing pump is used for pressurizing the heating medium supplemented by the water supplementing interface 65 so that the heating medium flows into the first interface of the first power module 51, the heating medium flows into the first interface of the third power module 53 through the water supplementing interface 65, the third power module 53 pressurizes the heating medium, and the pressurized heating medium is conveyed to the first interface of the first power module 51 through the second interface of the third power module 53 A first interface; the fourth power module 54 may be a water replenishing pump, the water replenishing pump is used for pressurizing the heating medium replenished by the water replenishing interface 65, so that the heating medium flows into the first interface of the second power module 52, the heating medium flows into the first interface of the fourth power module 54 through the water replenishing interface 65, the fourth power module 54 pressurizes the heating medium, and the pressurized heating medium is conveyed to the first interface of the second power module 52 through the second interface of the fourth power module 54.

The geothermal heating system provided by the embodiment of the application comprises a heat exchange module, a first switch, a second switch, a communication pipeline, a geothermal water supply interface and a user water supply interface; when the first switch is opened, the second switch is closed, the geothermal water supply interface is communicated with the first interface of the first switch through a communicating pipeline, and the second interface of the first switch is communicated with the user water supply interface through a communicating pipeline, so that the heating medium flowing out of the geothermal water supply interface is directly conveyed to the user water supply interface; when the second switch is opened, the first switch is closed, the geothermal water supply interface is communicated with the first interface of the second switch through a communicating pipeline, the second interface of the second switch is communicated with the heat exchange module through a communicating pipeline, and the heat exchange module is communicated with the user water supply interface through a communicating pipeline. So, through opening and closing of control setting first switch and second switch on the intercommunication pipeline, carry the heating medium that geothermal water supply interface provided to user's water supply interface or heat transfer module, step heat supply has been realized, satisfy the heating demand, and simultaneously, heat transfer module, first switch, second switch and intercommunication pipeline are connected according to above-mentioned connected mode and are set up in the box of a standard, set up geothermal water supply interface and user's water supply interface simultaneously on the box, realize the exchange of heating medium between user and the geothermal heating equipment, the cost of transportation and installation has been reduced.

In order to facilitate transportation and installation and reduce cost, in this embodiment, the present embodiment provides a geothermal heating apparatus, as shown in fig. 9, including: a case 30;

the system comprises a heat exchange module 10, a first switch 21, a second switch 22, communicating pipes, a geothermal water supply interface 61, a user water supply interface 62, a geothermal water return interface 63 and a user water return interface 64, wherein the heat exchange module 10, the first switch 21, the second switch 22 and the communicating pipes are arranged in a box body, and the geothermal water supply interface, the user water supply interface 62, the geothermal water return interface 63 and the user water return interface 64 are arranged on the box body; the geothermal water supply interface 61 is respectively connected with the first switch 21 and the second switch 22 through communicating pipelines, the first switch 21 is connected with the user water supply interface 62 through a communicating pipeline, the second switch 22 is connected with the first interface of the evaporator 11 through a communicating pipeline, the second interface of the evaporator 11 is connected with the geothermal water return interface 63 through a communicating pipeline, the user water return interface 64 is respectively connected with the geothermal water return interface 63 and the first interface of the condenser 12 through communicating pipelines, and the second interface of the condenser 12 is connected with the user water supply interface 62 through a communicating pipeline.

It can be understood that, for the connection relationship of the components and the functions realized by the components in the geothermal heating apparatus provided by this embodiment, please refer to the corresponding description in the geothermal heating system, and redundant description is not repeated here.

The geothermal heating equipment that this application embodiment provided includes: the box body is provided with a heat exchange module, a first switch, a second switch, a communication pipeline, a geothermal water supply interface and a user water supply interface; when the first switch is opened, the second switch is closed, the geothermal water supply interface is communicated with the first interface of the first switch through a communicating pipeline, and the second interface of the first switch is communicated with the user water supply interface through a communicating pipeline, so that the heating medium flowing out of the geothermal water supply interface is directly conveyed to the user water supply interface; when the second switch is opened, the first switch is closed, the geothermal water supply interface is communicated with the first interface of the second switch through a communicating pipeline, the second interface of the second switch is communicated with the heat exchange module through a communicating pipeline, and the heat exchange module is communicated with the user water supply interface through a communicating pipeline. So, through opening and closing of control setting first switch and second switch on the intercommunication pipeline, carry the heating medium that geothermal water supply interface provided to user's water supply interface or heat exchange module, step heat supply has been realized, satisfy the heating demand, and simultaneously, heat exchange module, first switch, second switch and intercommunication pipeline are connected the setting according to above-mentioned connected mode in the box of a standard, set up geothermal water supply interface and user's water supply interface simultaneously on the box, realize the exchange of heating medium between user and the geothermal heating equipment, the cost of transportation and installation has been reduced.

The geothermal heating system and the geothermal heating equipment provided by the embodiment of the present application are described in detail above, and the principle and the embodiment of the present application are explained by applying a specific example, and the description of the above embodiment is only used to help understand the core idea of the present application; meanwhile, for those skilled in the art, according to the idea of the present application, the specific implementation manner and the application scope may be changed, and in summary, the content of the present specification should not be construed as a limitation to the present application.

Claims (16)

1. A geothermal heating system is characterized by comprising a heat exchange module, a first switch, a second switch, a communicating pipeline, a geothermal water supply interface, a user water supply interface, a geothermal water return interface and a user water return interface, wherein the heat exchange module comprises an evaporator and a condenser;

the geothermal water supply interface is respectively connected with the first switch and the second switch through the communicating pipeline, the first switch is connected with the user water supply interface through the communicating pipeline, the second switch is connected with the first interface of the evaporator through the communicating pipeline, the second interface of the evaporator is connected with the geothermal water return interface through the communicating pipeline, the user water return interface is respectively connected with the geothermal water return interface and the first interface of the condenser through the communicating pipeline, and the second interface of the condenser is connected with the user water supply interface through the communicating pipeline.

2. The geothermal heating system of claim 1, further comprising a third switch and a fourth switch;

when the first switch and the third switch are opened, the second switch and the fourth switch are closed, the geothermal water supply interface is communicated with the first switch through the communicating pipeline, the first switch is communicated with the user water supply interface through the communicating pipeline, the user water return interface is communicated with the third switch through the communicating pipeline, the third switch is communicated with the geothermal water return interface through the communicating pipeline, and the third switch is arranged on the communicating pipeline between the user water return interface and the second interface of the evaporator;

when the second switch and the fourth switch are opened, the first switch and the third switch are closed, the geothermal water supply interface is communicated with the second switch through the communicating pipeline, the second switch is communicated with the first interface of the evaporator through the communicating pipeline, the second interface of the evaporator is communicated with the geothermal water return interface through the communicating pipeline, the user water return interface is communicated with the fourth switch through the communicating pipeline, the fourth switch is communicated with the first interface of the condenser through the communicating pipeline, and the second interface of the condenser is communicated with the user water supply interface through the communicating pipeline.

3. The geothermal heating system of claim 1, further comprising a heating module;

the heating module is connected with the user water supply interface and the user water return interface through the communication pipeline respectively, and is used for heating a heating medium provided by the user water return interface and conveying the heating medium obtained through heating to the user water supply interface.

4. The geothermal heating system of claim 3, further comprising a fifth switch and a sixth switch;

the user water supply interface is connected with the fifth switch through the communicating pipeline, and the fifth switch is connected with the heating module through the communicating pipeline;

the user backwater interface is connected with the sixth switch through the communicating pipeline, and the fifth switch is connected with the heating module through the communicating pipeline.

5. The geothermal heating system of claim 2, further comprising a first power module;

the first interface of the first power module is communicated with the geothermal water supply interface through the communication pipeline;

and the second interface of the first power module is respectively connected with the first switch and the second switch through the communicating pipelines.

6. The geothermal heating system of claim 5, further comprising a second power module;

the first interface of the second power module is connected with the fourth switch through the communication pipeline;

and the second interface of the second power module is communicated with the first interface of the condenser through the communication pipeline.

7. The geothermal heating system of claim 6, further comprising an external heating medium make-up module and a water make-up interface;

the water supplementing interface is used for supplementing a heating medium;

the first interface of the external heating medium supply module is communicated with the water supplementing interface through the communicating pipeline, the second interface of the external heating medium supply module is communicated with the first power module and the second power module through the communicating pipeline respectively, and the external heating medium supply module is used for supplementing heating media.

8. The geothermal heating system of claim 7, wherein the off-board heating medium make-up module comprises a third power module and a fourth power module;

the first interface of the third power module is communicated with the water supplementing interface through the communicating pipeline, and the second interface of the third power module is communicated with the first interface of the first power module through the communicating pipeline;

and the first interface of the fourth power module is communicated with the water supplementing interface through the communicating pipeline, and the second interface of the fourth power module is communicated with the first interface of the second power module through the communicating pipeline.

9. A geothermal heating apparatus, characterized by comprising: a box body;

the system comprises a box body, a heat exchange module, a first switch, a second switch and a communication pipeline, wherein the box body is internally provided with the heat exchange module, the first switch, the second switch and the communication pipeline;

the geothermal water supply interface is respectively connected with the first switch and the second switch through the communicating pipeline, the first switch is connected with the user water supply interface through the communicating pipeline, the second switch is connected with the first interface of the evaporator through the communicating pipeline, the second interface of the evaporator is connected with the geothermal water return interface through the communicating pipeline, the user water return interface is respectively connected with the geothermal water return interface and the first interface of the condenser through the communicating pipeline, and the second interface of the condenser is connected with the user water supply interface through the communicating pipeline.

10. A geothermal heating apparatus according to claim 9, wherein a third switch and a fourth switch are further provided in the box body;

when the first switch and the third switch are opened, the second switch and the fourth switch are closed, the geothermal water supply interface is communicated with the first switch through the communicating pipeline, the first switch is communicated with the user water supply interface through the communicating pipeline, the user water return interface is communicated with the third switch through the communicating pipeline, the third switch is communicated with the geothermal water return interface through the communicating pipeline, and the third switch is arranged on the communicating pipeline between the user water return interface and the second interface of the evaporator;

when the second switch and the fourth switch are opened, the first switch and the third switch are closed, the geothermal water supply interface is communicated with the second switch through the communicating pipeline, the second switch is communicated with the first interface of the evaporator through the communicating pipeline, the second interface of the evaporator is communicated with the geothermal water return interface through the communicating pipeline, the user water return interface is communicated with the fourth switch through the communicating pipeline, the fourth switch is communicated with the first interface of the condenser through the communicating pipeline, and the second interface of the condenser is communicated with the user water supply interface through the communicating pipeline.

11. The geothermal heating apparatus according to claim 9, wherein the tank body is further provided with a heating module;

the heating module is connected with the user water supply interface and the user water return interface through the communication pipeline respectively, and is used for heating a heating medium provided by the user water return interface and conveying the heating medium obtained through heating to the user water supply interface.

12. A geothermal heating apparatus according to claim 11, wherein a fifth switch and a sixth switch are further provided in the box body;

the user water supply interface is connected with the fifth switch through the communicating pipeline, and the fifth switch is connected with the heating module through the communicating pipeline;

the user backwater interface is connected with the sixth switch through the communicating pipeline, and the fifth switch is connected with the heating module through the communicating pipeline.

13. A geothermal heating apparatus according to claim 10, wherein a first power module is provided in the tank;

the first interface of the first power module is communicated with the geothermal water supply interface through the communication pipeline;

and the second interface of the first power module is respectively connected with the first switch and the second switch through the communication pipeline.

14. A geothermal heating apparatus according to claim 13, wherein a second power module is further provided within the tank;

the first interface of the second power module is connected with the fourth switch through the communication pipeline;

and the second interface of the second power module is communicated with the first interface of the condenser through the communication pipeline.

15. The geothermal heating apparatus of claim 14, wherein the box is further provided with an external heating medium supply module and a water supply interface;

the water supplementing interface is used for supplementing a heating medium;

the first interface of external heating medium supply module passes through the connecting line with the moisturizing interface intercommunication, the second interface of external heating medium supply module passes through the connecting line respectively with first power module with second power module intercommunication, external heating medium supply module is used for supplementing the heating medium.

16. The geothermal heating apparatus of claim 15, wherein the off-board heating medium make-up module comprises a third power module and a fourth power module;

the first interface of the third power module is communicated with the water supplementing interface through the communicating pipeline, and the second interface of the third power module is communicated with the first interface of the first power module through the communicating pipeline;

and the first interface of the fourth power module is communicated with the water supplementing interface through the communicating pipeline, and the second interface of the fourth power module is communicated with the first interface of the second power module through the communicating pipeline.

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