Middle-deep layer coaxial buried pipe heat supply monitoring system capable of monitoring heat supply parameters in real time

Abstract

According to the utility model, the flow calculation instruments and the thermometers are arranged at the buried pipes and the input and output ports, and the flow calculation instruments and the thermometers are connected with the monitoring control unit, so that the geothermal resources and the heating system can be comprehensively monitored in real time, and the efficient utilization of the geothermal resources is ensured. And meanwhile, the monitoring control unit comprehensively monitors the geothermal resources and the heating system in real time, so that the control valves can be accurately adjusted according to monitored data, the optimal operation state of the heating system is achieved, the heating efficiency is improved, and energy resources are saved.

Description

TECHNICAL FIELD

[0001] The utility model relates to geothermal energy development technical field especially relates to a kind of middle-deep coaxial ground buried pipe heat supply monitoring system of real-time monitoring heat supply parameter. BACKGROUND

[0002] With the increasing global energy demand and the increasingly prominent environmental problems, the development and utilization of clean energy have attracted widespread attention. As a kind of renewable energy, geothermal energy has the characteristics of clean, stable and sustainable, and has become one of the important directions of energy development, especially in the context of reducing carbon emissions and realizing energy transformation, geothermal energy gradually becomes a hot spot in global energy development due to its characteristics of all-weather operation and not being limited by weather conditions.

[0003] In the development of geothermal energy, middle-deep ground buried pipe heat supply system gradually attracts attention due to its high heat supply efficiency and good environmental adaptability. However, in the prior art, the economic evaluation of middle-deep ground buried pipe heat supply system usually uses static indicators for analysis, so that the heat supply parameters cannot be well monitored, and problems such as complex parameter selection and difficult economic balance are faced in the running process. UTILITY MODEL CONTENT

[0004] To solve the above technical problems, the utility model provides a kind of middle-deep coaxial ground buried pipe heat supply monitoring system of real-time monitoring heat supply parameter, which can well monitor heat supply parameters, and conveniently select heat supply parameters in the running process, so as to well balance economy.

[0005] The utility model adopts the following technical scheme to realize: a kind of middle-deep coaxial ground buried pipe heat supply monitoring system of real-time monitoring heat supply parameter, including heat pump unit, the first output of the heat pump unit is communicated with the water inlet of ground buried pipe by pipeline, the water inlet of ground buried pipe is equipped with ground buried pipe import temperature meter and ground buried pipe import flow calculator respectively;

[0006] The water outlet of ground buried pipe is communicated with the first input of heat pump unit and the first input of user side heating equipment respectively by pipeline, and the water outlet of ground buried pipe is equipped with ground buried pipe export temperature meter and ground buried pipe export flow calculator respectively;The first input of user side heating equipment is equipped with first heat user side inlet flow calculator and first user side inlet temperature meter;

[0007] The first output of user side heating equipment is communicated with the pipeline of the first output of heat pump unit by pipeline, and the first output of user side heating equipment is equipped with first user side outlet temperature meter and first user side outlet flow calculator;

[0008] The second output port of the heat pump unit is communicated with the second input port of the user-side heating device through a pipeline, and the second input port of the user-side heating device is provided with a second heat user-side inlet flow calculator and a second user-side inlet temperature meter;

[0009] The second output port of the user-side heating device is communicated with the second input port of the heat pump unit through a pipeline, and the second output port of the user-side heating device is provided with a second user-side outlet temperature meter and a second user-side outlet flow calculator; the user-side heating device supplies heat to the heat user;

[0010] The ground heat exchanger inlet temperature meter, the ground heat exchanger inlet flow calculator, the ground heat exchanger outlet temperature meter and the ground heat exchanger outlet flow calculator are connected with the data processing unit;

[0011] The first heat user-side inlet flow calculator, the first user-side inlet temperature meter, the first user-side outlet temperature meter, the first user-side outlet flow calculator, the second heat user-side inlet flow calculator, the second user-side inlet temperature meter, the second user-side outlet temperature meter and the second user-side outlet flow calculator are connected with the monitoring control unit; the data processing unit is also connected with the monitoring control unit.

[0012] Preferably, the ground heat exchanger is provided with a ground heat exchanger annular cavity outside, the ground heat exchanger annular cavity is provided with a backfill outside, and the backfill is provided with a rock-soil body outside.

[0013] Preferably, the ground heat exchanger, the ground heat exchanger annular cavity, the backfill and the rock-soil body are all provided with thermocouple sensors inside, and the thermocouple sensors are all connected with the data processing unit.

[0014] Preferably, a first control valve is arranged on the pipeline of the ground heat exchanger inlet, and a second control valve is arranged on the pipeline of the first output port of the heat pump unit;

[0015] A third control valve is arranged on the pipeline of the ground heat exchanger outlet, and a first water pump is arranged on the pipeline of the first input port of the heat pump unit;

[0016] The first control valve, the second control valve and the third control valve are all connected with the monitoring control unit.

[0017] Preferably, a fourth control valve and a second water pump are arranged on the pipeline between the first input port of the heat pump unit and the first input port of the user-side heating device in sequence;

[0018] A fifth control valve is arranged on the pipeline between the first output port of the user-side heating device and the first output port of the heat pump unit;

[0019] The fourth control valve and the fifth control valve are all connected with the monitoring control unit.

[0020] Preferably, a third water pump and a sixth control valve are sequentially arranged on a pipeline between the second output port of the heat pump unit and the second input port of the user-side heating device.

[0021] A seventh control valve is arranged on a pipeline between the second output port of the user-side heating device and the second input port of the heat pump unit.

[0022] The sixth control valve and the seventh control valve are connected with the monitoring control unit.

[0023] Compared with the prior art, the heat supply monitoring system has the following beneficial effects:

[0024] The heat supply monitoring system can comprehensively and real-timely monitor the geothermal resources and the heating system, ensure efficient use of the geothermal resources, accurately adjust the control valves according to the monitoring data, realize optimal operation of the heating system, improve the heating efficiency and save energy resources. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 The utility model discloses a structure schematic diagram.

[0026] Mark explanation:

[0027] 1, the buried pipe; 2, backfill material; 3, rock-soil body; 4, thermocouple sensor; 5, first water pump; 6, buried pipe export flow calculator; 7, buried pipe import flow calculator; 8, buried pipe import thermometer; 9, buried pipe export thermometer; 10, data processing unit; 11, heat pump unit; 12, monitoring control unit; 13, heat user; 14, third water pump; 15, second heat user side import flow calculator; 16, first heat user side import flow calculator; 17, first control valve; 18, third control valve; 19, fourth control valve; 20, second control valve; 21, fifth control valve; 22, seventh control valve; 23, sixth control valve; 24, second user side export thermometer; 25, first user side export thermometer; 26, second user side import side thermometer; 27, first user side import side thermometer; 28, second water pump; 29, user-side heating device; 30, second user side export flow calculator; 31, first user side export flow calculator; 32, buried pipe ring cavity. DETAILED DESCRIPTION

[0028] The utility model is further described below in combination with the drawings and specific embodiments. It should be noted that the embodiments described below or the technical features thereof can be combined to form new embodiments without conflict.

[0029] Embodiment:

[0030] Please combine Figure 1 The embodiment of the utility model discloses a kind of real-time monitoring heat supply parameter's middle-deep coaxial buried pipe heat supply monitoring system, including heat pump unit 11, the first output of the heat pump unit 11 is communicated with the water inlet of buried pipe 1 by pipeline, the water inlet of buried pipe 1 is equipped with buried pipe import temperature meter 8 and buried pipe import flow calculator 7 respectively;The water outlet of buried pipe 1 is communicated with the first input of heat pump unit 11 and the first input of user side heating equipment 29 respectively by pipeline, the water outlet of buried pipe 1 is equipped with buried pipe export temperature meter 9 and buried pipe export flow calculator 6 respectively;The first input of user side heating equipment 29 is equipped with first hot user side import flow calculator 16 and first user side import temperature meter 27;The first output of user side heating equipment 29 is communicated with the pipeline of the first output of heat pump unit 11 by pipeline, and the first output of user side heating equipment 29 is equipped with first user side export temperature meter 25 and first user side export flow calculator 31.

[0031] The second output of the heat pump unit 11 is communicated with the second input of user side heating equipment 29 by pipeline, and the second input of user side heating equipment 29 is equipped with second hot user side import flow calculator 15 and second user side import temperature meter 26;The second output of user side heating equipment 29 is communicated with the second input of heat pump unit 11 by pipeline, and the second output of user side heating equipment 29 is equipped with second user side export temperature meter 24 and second user side export flow calculator 30;User side heating equipment 29 heats hot user 13.

[0032] The outer side of the buried pipe 1 is equipped with buried pipe ring cavity 32, the outer side of the buried pipe ring cavity 32 is equipped with backfill 2, and the outer side of the backfill 2 is equipped with rock-soil body 3;The buried pipe 1, buried pipe ring cavity 32, backfill 2 and rock-soil body 3 are all equipped with thermocouple sensor 4.

[0033] In specific implementation, the thermocouple sensor 4, the buried pipe inlet thermometer 8, the buried pipe inlet flow calculator 7, the buried pipe outlet thermometer 9 and the buried pipe outlet flow calculator 6 are connected with the data processing unit 10; the first heat user side inlet flow calculator 16, the first user side inlet thermometer 27, the first user side outlet thermometer 25, the first user side outlet flow calculator 31, the second heat user side inlet flow calculator 15, the second user side inlet thermometer 26, the second user side outlet thermometer 24 and the second user side outlet flow calculator 30 are connected with the monitoring control unit 12; and the data processing unit 10 is further connected with the monitoring control unit 12.

[0034] In specific implementation, the first control valve 17 is arranged on the pipeline of the buried pipe 1 inlet, and the second control valve 20 is arranged on the pipeline of the first output port of the heat pump unit 11; the third control valve 18 is arranged on the pipeline of the buried pipe 1 outlet, and the first water pump 5 is arranged on the pipeline of the first input port of the heat pump unit 11; the fourth control valve 19 and the second water pump 28 are arranged in sequence on the pipeline between the first input port of the heat pump unit 11 and the first input port of the user side heating device 29; the fifth control valve 21 is arranged on the pipeline between the first output port of the user side heating device 29 and the first output port of the heat pump unit 11; the third water pump 14 and the sixth control valve 23 are arranged in sequence on the pipeline between the second output port of the heat pump unit 11 and the second input port of the user side heating device 29; and the seventh control valve 22 is arranged on the pipeline between the second output port of the user side heating device 29 and the second input port of the heat pump unit 11.

[0035] In specific implementation, the first control valve 17, the second control valve 20, the third control valve 18, the fourth control valve 19, the fifth control valve 21, the sixth control valve 23 and the seventh control valve 22 are connected with the monitoring control unit 12.

[0036] In operation, the working medium parameters entering the buried pipe 1 are monitored by the buried pipe inlet flow calculator 7, the buried pipe outlet flow calculator 6 and the thermocouple sensor 4, and the monitoring data are transmitted to the data processing unit 10 for processing to obtain the optimal parameter values (flow, temperature, etc.) under the current operating condition, and are fed back to the monitoring control unit 12; the monitoring control unit 12 adjusts the flow and pressure of the working medium in the pipeline through the first control valve 17, the second control valve 20, the third control valve 18, the fourth control valve 19 and the fifth control valve 21 according to the feedback data of the data processing unit, and after the adjustment is completed, the feedback data are transmitted to the data processing unit in real time to form a closed loop control, so as to ensure that the system is always in the optimal operating state.

[0037] The high-temperature water at the outlet of the buried pipe is extracted to the ground surface by the first water pump 5, a part of the high-temperature water is directly delivered to the user side for heating by the second water pump 28, another part of the high-temperature water enters the heat pump unit 11 to improve the energy grade, the high-grade hot water treated by the heat pump unit 11 is delivered to the user side 13 by the third water pump 14, and efficient heating is realized; at the outlet end of the user, the heating water is divided into two parts, one part returns to the buried pipe 1 to continue extracting geothermal energy, and the other part returns to the heat pump unit 11 to further improve the energy grade with the high-temperature water extracted by the buried pipe 1, and the system heat energy utilization efficiency is continuously optimized through the closed loop circulation; if the high-temperature water extracted from the buried pipe 1 is insufficient to meet the heating demand of the user side, the heat pump unit 11 is started to supplement the high-temperature water, so that the heating demand is met.

[0038] The first and second user side inlet flow calculators 16 and 15 are used to monitor the inlet side parameters (flow and pressure) of the user side, the second and first user side inlet thermometers 26 and 27 are used to monitor the inlet side temperature, the second and first user side outlet thermometers 24 and 25 are used to monitor the outlet side temperature, the second and first user side outlet flow calculators 30 and 31 are used to monitor the outlet side parameters (flow and pressure), and the monitoring and control unit 12 is used to immediately close the first control valve 17, the second control valve 20, the third control valve 18, the fourth control valve 19, the fifth control valve 21, the sixth control valve 23 and the seventh control valve 22 when the parameters of the user side or the pipe exceed the critical range (such as abnormal temperature, flow and pressure), so that the quick response protection device is used to prevent damage or failure.

[0039] The above-mentioned embodiments are only preferred embodiments of the utility model, and cannot be used to limit the range of the utility model protection, and any non-substantial change and replacement made by the person skilled in the art on the basis of the utility model belongs to the range of the utility model protection.

Claims

1. A mid-deep coaxial buried pipe heating monitoring system capable of real-time monitoring of heating parameters, characterized in that: It includes a heat pump unit (11), the first output port of which is connected to the inlet of the buried pipe (1) through a pipe, and the inlet of the buried pipe (1) is equipped with a buried pipe inlet thermometer (8) and a buried pipe inlet flow meter (7). The outlet of the buried pipe (1) is connected to the first inlet of the heat pump unit (11) and the first inlet of the user-side heating equipment (29) through pipes respectively. The outlet of the buried pipe (1) is equipped with a buried pipe outlet thermometer (9) and a buried pipe outlet flow meter (6) respectively. The first inlet of the user-side heating equipment (29) is equipped with a first user-side inlet flow meter (16) and a first user-side inlet thermometer (27). The first output port of the user-side heating equipment (29) is connected to the first output port of the heat pump unit (11) through a pipe. The first output port of the user-side heating equipment (29) is equipped with a first user-side outlet thermometer (25) and a first user-side outlet flow meter (31). The second output port of the heat pump unit (11) is connected to the second input port of the user-side heating equipment (29) through a pipe. The second input port of the user-side heating equipment (29) is equipped with a second user-side inlet flow calculator (15) and a second user-side inlet thermometer (26). The second output port of the user-side heating equipment (29) is connected to the second input port of the heat pump unit (11) through a pipe. The second output port of the user-side heating equipment (29) is equipped with a second user-side outlet thermometer (24) and a second user-side outlet flow meter (30). The user-side heating equipment (29) provides heat to the heat user (13). The buried pipe inlet thermometer (8), buried pipe inlet flow calculator (7), buried pipe outlet thermometer (9) and buried pipe outlet flow calculator (6) are all connected to the data processing unit (10). The first user-side inlet flow calculator (16), the first user-side inlet thermometer (27), the first user-side outlet thermometer (25), the first user-side outlet flow calculator (31), the second user-side inlet flow calculator (15), the second user-side inlet thermometer (26), the second user-side outlet thermometer (24), and the second user-side outlet flow calculator (30) are all connected to the monitoring and control unit (12); the data processing unit (10) is also connected to the monitoring and control unit (12).

2. The mid-deep coaxial buried pipe heating monitoring system capable of real-time monitoring of heating parameters as described in claim 1, characterized in that: The buried pipe (1) is provided with a buried pipe annular cavity (32) on the outside, and backfill material (2) is provided on the outside of the buried pipe annular cavity (32), and rock and soil mass (3) is provided on the outside of the backfill material (2).

3. A mid-deep coaxial buried pipe heating monitoring system capable of real-time monitoring of heating parameters as described in claim 2, characterized in that: Thermocouple sensors (4) are provided in the underground pipe (1), the underground pipe annular cavity (32), the backfill material (2) and the soil and rock mass (3), and the thermocouple sensors (4) are all connected to the data processing unit (10).

4. A mid-deep coaxial buried pipe heating monitoring system capable of real-time monitoring of heating parameters as described in claim 3, characterized in that: The inlet pipe of the buried pipe (1) is provided with a first control valve (17), and the pipe of the first control valve (17) and the first outlet pipe of the heat pump unit (11) is provided with a second control valve (20). A third control valve (18) is provided on the pipe at the outlet of the buried pipe (1), and a first water pump (5) is provided on the pipe between the third control valve (18) and the first input port of the heat pump unit (11). The first control valve (17), the second control valve (20) and the third control valve (18) are all connected to the monitoring and control unit (12).

5. A mid-deep coaxial buried pipe heating monitoring system capable of real-time monitoring of heating parameters as described in claim 4, characterized in that: A fourth control valve (19) and a second water pump (28) are sequentially installed on the pipe between the first inlet of the heat pump unit (11) and the first inlet of the user-side heating equipment (29); A fifth control valve (21) is provided on the pipe between the first output port of the user-side heating equipment (29) and the first output port of the heat pump unit (11); The fourth control valve (19) and the fifth control valve (21) are both connected to the monitoring and control unit (12).

6. A mid-deep coaxial buried pipe heating monitoring system capable of real-time monitoring of heating parameters as described in claim 5, characterized in that: A third water pump (14) and a sixth control valve (23) are sequentially installed on the pipe between the second output port of the heat pump unit (11) and the second input port of the user-side heating equipment (29); A seventh control valve (22) is provided on the pipe between the second output port of the user-side heating equipment (29) and the second input port of the heat pump unit (11); The sixth control valve (23) and the seventh control valve (22) are both connected to the monitoring and control unit (12).

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