Thermal response test system

Abstract

The utility model relates to the technical field of testing, in particular to a thermal response testing system which comprises a heating container arranged in an equipment shell, and an output port of the heating container is used for being connected with an input port of a buried pipe. A water outlet temperature sensor, a water outlet flow meter and a water outlet pressure sensor are arranged between the output port of the heating container and the input port of the buried pipe; an input port of the heating container is connected with an output port of the circulating pump, an input port of the circulating pump is used for being connected with an output port of the buried pipe, and a return water temperature sensor is arranged between the input port of the circulating pump and the output port of the buried pipe; a plurality of heater assemblies are arranged in the heating container; the constant power testing device has the characteristics of being more convenient to control and display, and being capable of better controlling and completing constant power tests under different power values.

Description

Technical Field

[0001] The utility model relates to the technical field of testing, in particular to a thermal response testing system. Background Art

[0002] In the national standard "Technical Code for Ground-Source Heat Pump System Engineering" (GB50366-2005 (2009 Edition)), it is required that a geotechnical thermal response test should be carried out before the design of the ground-source heat pump system. There are mainly two methods for geotechnical thermal response testing: the "constant power method" and the "constant temperature method". Among them, the "constant power method" conducts testing by applying a certain heating or heat absorption power to the geotechnical body through a cold and heat source. The theoretical basis of this method is the line heat source model, and the comprehensive thermal response parameters of the formation can be inversely calculated from the inlet and outlet temperature data of the buried pipe through the solution of the heat conduction inverse problem. The "constant temperature method" is to keep the inlet temperature of the loop unchanged during the test, and then obtain the heat exchange amount in the loop from the measured flow rate and the return water temperature. Therefore, the inventor designed a thermal response tester (patent number: CN209416953 U) that can perform constant temperature method and constant power method tests, and can complete both the "constant power method" and the "constant temperature method" tests simultaneously.

[0003] During the actual use of the above tester, the inventor found that there are still the following problems: 1. It is not convenient to control the instrument and equipment, and it is not convenient to display the test data; 2. Using a single heater structure makes it inconvenient to control the heater to have different constant power values during the test; 3. During the test, there will be gas inside the pipeline, which cannot be discharged in time, affecting the test reliability; 4. During the test, the circulating water cannot be replenished in time; 5. It cannot well adapt to the test of the buried pipe with a double U-shaped pipe structure. Summary of the Utility Model

[0004] In view of the above-mentioned defects of the prior art, the technical problem to be solved by the utility model is how to provide a thermal response testing system with a simpler and more reasonable structural design, which can be more convenient to control and display, and can better control and complete the constant power test under different power values.

[0005] To achieve the above object, the present utility model provides a thermal response test system, which includes a heating container disposed inside an equipment housing. The output port of the heating container is used to be connected to the input port of the buried pipe. An outlet water temperature sensor, an outlet water flowmeter, and an outlet water pressure sensor are provided between the output port of the heating container and the input port of the buried pipe. The input port of the heating container is connected to the output port of a circulation pump, and the input port of the circulation pump is used to be connected to the output port of the buried pipe. A return water temperature sensor is provided between the input port of the circulation pump and the output port of the buried pipe. It is characterized in that a plurality of heater assemblies are provided inside the heating container. It further includes a PLC controller and a display terminal, and the electric control ends of the heater assemblies, the electric control end of the circulation pump, the outlet water temperature sensor, the outlet water flowmeter, the outlet water pressure sensor, and the return water temperature sensor are each electrically connected to the PLC controller, and the PLC controller is electrically connected to the display terminal.

[0006] In this way, in the above thermal response test system, by providing a plurality of heater assemblies inside the heating container, the PLC controller can control different numbers of heater assemblies to work, so that during the test, a constant power at different power values can be obtained, which is more convenient to complete the constant power method test. By providing a display terminal, it is more convenient to display each monitored value and more convenient to use the entire device.

[0007] As an optimization, the number of the heater assemblies is 6.

[0008] In this way, the number design of the heater assemblies is more reasonable, and different power values can be better combined.

[0009] As an optimization, two outlet water temperature sensors are provided.

[0010] In this way, by providing two outlet water temperature sensors, the outlet water temperature can be better measured, and the reliability of the outlet water temperature monitoring can be improved.

[0011] As an optimization, it further includes a container temperature monitoring sensor, which is installed on the heating container; a smoke sensor is provided inside the equipment housing; the container temperature monitoring sensor and the smoke sensor are each electrically connected to the PLC controller; it further includes an audible and visual alarm provided outside the equipment housing, and the audible and visual alarm is electrically connected to the PLC controller.

[0012] In this way, by providing a container temperature monitoring sensor to monitor the temperature of the heating container and sending the temperature information to the PLC controller, when the temperature is higher than 160 °C, the audible and visual alarm is controlled to alarm; by providing a smoke sensor, when smoke is detected inside the equipment housing, the information is sent to the PLC controller, and the PLC controller controls the audible and visual alarm to alarm; thus, the safety of the equipment can be improved.

[0013] As an optimization, a return water input pipe is connected to the input port of the circulation pump, and the distal end of the return water input pipe is used to be connected to the output port of the buried pipe; and the return water temperature sensor is arranged on the return water input pipe.

[0014] In this way, by setting the return water input pipe, the arrangement of the return water temperature sensor can be made more convenient.

[0015] As an optimization, a make-up water pipe is further connected to the distal end of the return water input pipe, and the distal end of the make-up water pipe is used to be connected to the output port of the make-up water tank.

[0016] In this way, by setting the make-up water tank and the make-up water pipe, water replenishment can be made more convenient during the test.

[0017] As an optimization, two first return water pipes are connected to the distal end of the return water input pipe, and return water valves are respectively arranged on the two first return water pipes; an outlet water output pipe is connected to the output port of the heating container, and the outlet water temperature sensor, the outlet water flowmeter and the outlet water pressure sensor are arranged on the outlet water output pipe; two first outlet water pipes are connected to the distal end of the outlet water output pipe, and outlet water valves are respectively arranged on the two first outlet water pipes.

[0018] In this way, by setting two first return water pipes and the return water valves; and then setting the outlet water output pipe, the first outlet water pipes and the outlet water valves, it can be more convenient to be applicable to the test of the buried pipe with a double U-shaped tube structure.

[0019] As an optimization, return water pipe joints are respectively connected to the distal ends of the two first return water pipes; outlet water pipe joints are respectively connected to the distal ends of the two first outlet water pipes.

[0020] In this way, by setting the return water pipe joints and the outlet water pipe joints, the connection and use can be made more convenient.

[0021] As an optimization, the output port of the circulation pump and the input port of the heating container are connected by a connecting pipe, and a check valve is arranged on the connecting pipe.

[0022] In this way, by designing the connecting pipe, the installation and arrangement of the check valve can be made more convenient.

[0023] As an optimization, an exhaust pipe is also connected and arranged on the connecting pipe, and an exhaust valve is arranged at the distal end of the exhaust pipe.

[0024] In this way, by designing the exhaust pipe and the exhaust valve, the air in the loop can be discharged in time, improving the reliability of the test.

[0025] In summary, in the above thermal response test system structure, the overall system structure design is simpler and more reasonable. By designing a display terminal, it is more convenient to display the monitored data. By setting multiple heater components, it is more convenient to control and complete the constant power test at different power values. By designing an exhaust pipe, it is convenient to discharge gases, improve the reliability of the test, and is also convenient for water replenishment and can adapt to the tests of different buried pipes. Description of the Drawings

[0026] Figure 1 is a schematic diagram of the thermal response test system in the specific embodiment of the present invention. Specific Embodiment

[0027] The present invention will be further described below in conjunction with the drawings and embodiments. It should be noted that in the description of the present invention, the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific manner, and therefore cannot be understood as a limitation of the present invention. The terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0028] As Figure 1 shown, a thermal response test system includes a heating container 2 arranged in an equipment housing 1. The output port of the heating container is used to be connected to the input port of a buried pipe 3. An outlet water temperature sensor 4, an outlet water flowmeter 5, and an outlet water pressure sensor 6 are arranged between the output port of the heating container and the input port of the buried pipe. The input port of the heating container is connected to the output port of a circulation pump 7, and the input port of the circulation pump is used to be connected to the output port of the buried pipe. A return water temperature sensor 8 is arranged between the input port of the circulation pump and the output port of the buried pipe. A plurality of heater components 9 are arranged in the heating container. It also includes a PLC controller 10 and a display terminal 11, and the electric control ends of the heater components, the electric control end of the circulation pump, the outlet water temperature sensor, the outlet water flowmeter, the outlet water pressure sensor, and the return water temperature sensor are respectively electrically connected to the PLC controller, and the PLC controller is electrically connected to the display terminal.

[0029] In this way, in the above thermal response test system, by arranging a plurality of heater components in the heating container, the PLC controller can control the operation of different numbers of heater components, so that during the test, a constant power at different power values can be obtained, and it is more convenient to complete the constant power method test. By setting a display terminal, it is more convenient to display each monitored value and more convenient to use the entire device.

[0030] Further, the display terminal can be an existing display screen, or a mobile phone, a computer, etc. Bluetooth connection or 4G / 5G network connection can be adopted.

[0031] In this specific embodiment, there are 6 heater components.

[0032] In this way, the number of heater components is more reasonably designed, and different power values can be better combined.

[0033] In this specific embodiment, there are two outlet water temperature sensors.

[0034] In this way, by designing two outlet water temperature sensors, the outlet water temperature can be better measured, and the reliability of outlet water temperature monitoring can be improved.

[0035] In this specific embodiment, it further includes a container temperature monitoring sensor 12, which is installed on the heating container; a smoke sensor 13 is arranged inside the equipment housing; the container temperature monitoring sensor and the smoke sensor are respectively electrically connected to the PLC controller; it further includes an audible and visual alarm 14 arranged outside the equipment housing, and the audible and visual alarm is electrically connected to the PLC controller.

[0036] In this way, by setting the container temperature monitoring sensor to monitor the temperature of the heating container and sending the temperature information to the PLC controller, when the temperature of the container temperature monitoring sensor is higher than 160°C, the PLC controller controls the audible and visual alarm to alarm; by setting the smoke sensor, when smoke is detected inside the equipment housing, the information is sent to the PLC controller, and the PLC controller controls the audible and visual alarm to alarm; thus, the equipment safety can be improved.

[0037] In this specific embodiment, a return water input pipe 15 is connected to the input port of the circulation pump, and the distal end of the return water input pipe is used to be connected to the output port of the buried pipe; and the return water temperature sensor is arranged on the return water input pipe.

[0038] In this way, by setting the return water input pipe, the layout of the return water temperature sensor can be more convenient.

[0039] In this specific embodiment, a make-up water pipe 16 is further connected to the distal end of the return water input pipe, and the distal end of the make-up water pipe is used to be connected to the output port of the make-up water tank 17.

[0040] In this way, by setting the make-up water tank and the make-up water pipe, water replenishment can be more convenient during the test.

[0041] In this specific embodiment, two first return water pipes 18 are connected to the distal end of the return water input pipe, and a return water valve 19 is respectively arranged on each of the two first return water pipes; an outlet water output pipe 20 is connected to the output port of the heating container, and the outlet water temperature sensor, the outlet water flowmeter and the outlet water pressure sensor are arranged on the outlet water output pipe; two first outlet water pipes 21 are connected to the distal end of the outlet water output pipe, and an outlet water valve 22 is respectively arranged on each of the two first outlet water pipes.

[0042] In this way, by arranging two first return water pipes and the return water valves; and then arranging the outlet water output pipe, the first outlet water pipes and the outlet water valves, it can be more conveniently applied to the test of the buried pipe with a double U-shaped pipe structure.

[0043] In this specific embodiment, a return water pipe joint 23 is respectively connected to the distal end of each of the two first return water pipes; an outlet water pipe joint 24 is respectively connected to the distal end of each of the two first outlet water pipes.

[0044] In this way, by arranging the return water pipe joint and the outlet water pipe joint, it can be more convenient for connection and use.

[0045] In this specific embodiment, the output port of the circulation pump is connected to the input port of the heating container through a connecting pipe 25, and a check valve 26 is arranged on the connecting pipe.

[0046] In this way, by designing the connecting pipe, it can be more convenient for the installation and arrangement of the check valve.

[0047] In this specific embodiment, an exhaust pipe 27 is further connected and arranged on the connecting pipe, and an exhaust valve 28 is arranged at the distal end of the exhaust pipe.

[0048] In this way, by designing the exhaust pipe and the exhaust valve, the air in the loop can be discharged in time, improving the reliability of the test.

[0049] To sum up, in the above-mentioned thermal response test system structure, the overall system structure design is simpler and more reasonable. By designing the display terminal, it can be more convenient to display the monitored data. By arranging multiple heater components, it can be more convenient to control and complete the constant power test under different power values; by designing the exhaust pipe, it is convenient to discharge the gas, improving the reliability of the test, and it is also convenient for water replenishment and can adapt to the tests of different buried pipes.

[0050] The preferred specific embodiments of the present invention have been described in detail above. It should be understood that those of ordinary skill in the art can make many modifications and variations according to the concept of the present invention without creative labor. Therefore, all technical solutions that can be obtained by those skilled in the art in the technical field of the present invention based on the concept of the present invention through logical analysis, reasoning or limited experiments on the basis of the prior art should be within the protection scope determined by the claims.

Claims

1. A thermal response test system, comprising a heating container arranged inside a device housing, an output port of the heating container being used to be connected to an input port of a buried pipe, and a water outlet temperature sensor, a water outlet flowmeter and a water outlet pressure sensor being arranged between the output port of the heating container and the input port of the buried pipe; an input port of the heating container is connected to an output port of a circulation pump, and an input port of the circulation pump is used to be connected to an output port of the buried pipe, and a return water temperature sensor is arranged between the input port of the circulation pump and the output port of the buried pipe; characterized in that, There are multiple heater components arranged inside the heating container; it also includes a PLC controller and a display terminal, and the electrical control terminals of the heater components, the electrical control terminal of the circulation pump, the outlet water temperature sensor, the outlet water flowmeter, the outlet water pressure sensor, and the return water temperature sensor are each electrically connected to the PLC controller, and the PLC controller is electrically connected to the display terminal.

2. The thermal response test system according to claim 1, wherein: There are 6 heater components.

3. The thermal response test system according to claim 1, wherein: There are two outlet water temperature sensors.

4. The thermal response test system according to claim 1, wherein: It also includes a container temperature monitoring sensor which is installed on the heating container; a smoke sensor is arranged inside the equipment housing; the container temperature monitoring sensor and the smoke sensor are each electrically connected to the PLC controller; it also includes an audible and visual alarm arranged outside the equipment housing, and the audible and visual alarm is electrically connected to the PLC controller.

5. A thermal response test system according to claim 1, characterized in that: A return water input pipe is connected to the input port of the circulation pump, and the distal end of the return water input pipe is used to be connected to the output port of the buried pipe; and the return water temperature sensor is arranged on the return water input pipe.

6. The thermal response test system according to claim 5, wherein: A make-up water pipe is also connected to the distal end of the return water input pipe, and the distal end of the make-up water pipe is used to be connected to the output port of the make-up water tank.

7. The thermal response test system according to claim 5, wherein: Two first return water pipes are connected to the distal end of the return water input pipe, and return water valves are respectively arranged on the two first return water pipes; an outlet water output pipe is connected to the output port of the heating container, and the outlet water temperature sensor, the outlet water flowmeter, and the outlet water pressure sensor are arranged on the outlet water output pipe; two first outlet water pipes are connected to the distal end of the outlet water output pipe, and outlet water valves are respectively arranged on the two first outlet water pipes.

8. The thermal response test system according to claim 7, wherein: Return water pipe connectors are respectively connected to the distal ends of the two first return water pipes; outlet water pipe connectors are respectively connected to the distal ends of the two first outlet water pipes.

9. The thermal response test system according to claim 1, wherein: The output port of the circulation pump is connected to the input port of the heating container through a connecting pipe, and a check valve is arranged on the connecting pipe.

10. A thermal response test system according to claim 9, characterized in that: An exhaust pipe is also connected and arranged on the connecting pipe, and an exhaust valve is arranged at the distal end of the exhaust pipe.

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