CN203148866U - Mobile soil thermal response tester for ground source heat pump - Google Patents
Mobile soil thermal response tester for ground source heat pump Download PDFInfo
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- CN203148866U CN203148866U CN 201320126796 CN201320126796U CN203148866U CN 203148866 U CN203148866 U CN 203148866U CN 201320126796 CN201320126796 CN 201320126796 CN 201320126796 U CN201320126796 U CN 201320126796U CN 203148866 U CN203148866 U CN 203148866U
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- shaped pipe
- water tank
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Abstract
The utility model relates to a mobile soil thermal response tester for a ground source heat pump. The mobile soil thermal response tester comprises a vertical U-shaped pipe in a ground source to be tested, a water tank, an electric heater, a circulating water pump, a flow meter, two temperature sensors, a power regulator, a proportion integration differentiation (PID) controller, a data acquirer and a frequency converter, wherein the vertical U-shaped pipe is connected with a water inlet and a water outlet of the water tank; the electric heater is arranged at the bottom of the water tank; the two temperature sensors are respectively arranged at a water inlet and a water outlet of the vertical U-shaped pipe; the flow meter is arranged at the water inlet of the water tank; signals of the flow meter and the two temperature sensors are sent into the data acquirer; the signal of the temperature sensor which is arranged at the water inlet of the vertical U-shaped pipe is sent to the PID controller; the PID controller generates an output signal, and sends the output signal to the power regulator to control the electric heater; and the frequency converter outputs a control signal to the circulating water pump. The tester can complete a soil thermal response test on the ground source heat pump under working conditions of constant heat flux and constant temperature; and real-time data can be acquired and analyzed in the test so as to obtain accurate soil thermal response data.
Description
Technical field
The utility model relates to a kind of measuring technology, particularly a kind of portable earth source heat pump soil thermal response tester.
Background technology
The characteristics of earth-source hot-pump system and environmental protection efficient, energy-conservation because of it enjoy popularization under the overall situation of China's building energy conservation.Because the variation of underground situation everywhere, suction in the operation of heat pump, thermal discharge are changed greatly, therefore, basic data before the earth source heat pump design is collected with the test of layer depth place soil thermal response over the ground extremely important, especially the design and installation to the ground-source heat pump ground buried tube heat exchanger play direct directive function, still do not have at present conventional method of testing, GB does not have the regulation of this respect yet.By the thermal physical property parameter of the regional deep soil of the definite test of on-the-spot test, the design and the construction that can be the ground buried pipe of ground source heat pump heat interchanger provide foundation accurately and reliably.
Summary of the invention
The utility model be at the soil thermal response test that earth source heat pump design needs lack problem, a kind of portable earth source heat pump soil thermal response tester has been proposed, this tester can be finished the soil thermal response testing experiment of earth source heat pump under constant heat flux or two kinds of operating modes of steady temperature, in test, can realize the real time data acquisition of ground buried pipe of ground source heat pump heat interchanger and the real-time analysis of image data, to obtain the data of soil thermal response accurately.
The technical solution of the utility model is: a kind of portable earth source heat pump soil thermal response tester, comprise vertical U-shaped pipe, water tank, electric heater, water circulating pump, flowmeter, two temperature sensors, Power Regulation instrument, the PID controller, data collecting instrument, frequency converter, vertical U-shaped pipe are imbedded to be needed in the geodetic source, vertical U-shaped pipe is connected with water inlet with the water outlet of water tank, electric heater places the bottom of water tank, and two temperature sensors place water delivering orifice and the water inlet of vertical U-shaped pipe respectively, and flowmeter places the water inlet of water tank, flowmeter and two temperature sensor signals are sent into data collecting instrument, place the temperature sensor signal of vertical U-shaped pipe water inlet to send PID controller, the PID controller produces output signal and send Power Regulation instrument control electric heater, and frequency converter outputs a control signal to water circulating pump.
Can add a multi-functional switch in the described electric heater current supply circuit, to realize the switching of constant heat flux and these two kinds of operational modes of steady temperature.
The beneficial effects of the utility model are: the portable earth source heat pump soil of the utility model thermal response tester, compact conformation, all devices are installed on the dolly, and profile is small and exquisite attractive in appearance, test simple and easy to doly, can adapt to the earth source heat pump soil thermal response test of varying environment condition; But fluid flow, flow velocity in the stable regulation control ground heat exchanger; Satisfy different test requests, include with the constant temperature mode of set temperature value operation with to set the permanent heat flow density pattern of heat flow density value operation; The data acquisition software of this tester, analysis and evaluation software can be finished real-time collection, the real-time analysis of earth source heat pump soil thermal response test experiments data.
Description of drawings
Fig. 1 is the portable earth source heat pump soil of the utility model thermal response tester structural representation.
Embodiment
Portable earth source heat pump soil thermal response tester structural representation comprises vertical U-shaped pipe 11, water tank 1, electric heater 2, water circulating pump 9, flowmeter 6 as shown in Figure 1; TT﹠C system comprises temperature sensor 7,8, Power Regulation instrument 3, PID controller 4, data collecting instrument 5, frequency converter 10, vertical U-shaped pipe 11 is imbedded to be needed in the geodetic source, vertical U-shaped pipe 11 is connected with water inlet with the water outlet of water tank 1, electric heater 2 places the bottom of water tank 1, temperature sensor 7,8 place water delivering orifice and the water inlet of vertical U-shaped pipe 11 respectively, and flowmeter 6 places the water inlet of water tank 1, flowmeter 6, temperature sensor 7,8 signals are sent into data collecting instrument 5, vertical U-shaped pipe 11 water inlet temperature sensors 8 signals send PID controller 4, and PID controller 4 produces output signal and send the Power Regulation instrument 3 control electric heaters 2, frequency converter 10 control water circulating pumps 9.
Test macro is confirmed ready, and water tank 1 is connected the three phase supply power supply, and the water tank control system is in holding state, and water tank mode of operation selective switchgear is as for lock catch, and water circulating pump 9 does not start, and the electric heater of being made up of three groups of heating wire 2 does not load.After confirming the test beginning, select water tank operational mode (constant temperature or permanent hot-fluid) earlier; Press the button switch, start water circulating pump 9, control water circulating pumps 9 discharges in a desired value by frequency converter 10.
If water tank 1 is in permanent hot-fluid operational mode, switch is placed permanent hot-fluid shelves, the fixedly electrical heating power operation of water tank 1 to load.According to concrete test request, add (unloading) year corresponding heating wire by pushbutton switch and regulate electric heater 2 watt levels.Excessive for preventing the operating circuit electric current, in every group of heating wire loop, install a fuse additional.
If water tank 1 presses the button switch earlier with the constant temperature mode operation, connect the working power of PID controller 4; Switch is placed the constant temperature shelves, and operating personnel are by PID controller 4 control Power Regulation instrument 3, and Power Regulation instrument 3 connects well heater 2, makes the water tank water temperature maintain the temperature of setting.System operation early stage, water tank 1 water temperature can be connected three groups of heating wire simultaneously and load work simultaneously during far below set temperature value, and with maximum electrical heating power operation, the shortening system reaches the stable time.After system tends towards stability, unload one group or two groups of heating wire, with the operation of small electric heating power, make water tank heating load and " testing well " institute heat requirement reach optimum matching, improve the observing and controlling precision of whole test system.
Whole tester compact conformation, top are constant temperature water tank, and the bottom is that water pump, flow are taken into account switch board, and all devices is installed on the dolly, and profile is small and exquisite attractive in appearance, tests simple and easy to do.Difference according to test request, the constant temperature water tank quantity of circulating water can be finished the single U-shaped ground pipe laying of earth source heat pump a bite or double-U-shaped ground heat exchanger testing well soil thermal response test experiments, and by frequency converter, but fluid flow, flow velocity in the stable regulation control ground heat exchanger.The tester thermal source is constant temperature water tank, in the test process, can realize two kinds of different stable operation patterns by PID controller constant temperature water tank, to satisfy different test requests, include with the constant temperature mode of set temperature value operation with to set the permanent heat flow density pattern of heat flow density value operation.The data acquisition software of this tester, analysis and evaluation software can be finished real-time collection, the real-time analysis of earth source heat pump soil thermal response test experiments data.
Claims (2)
1. portable earth source heat pump soil thermal response tester, it is characterized in that, comprise vertical U-shaped pipe, water tank, electric heater, water circulating pump, flowmeter, two temperature sensors, the Power Regulation instrument, PID controller, data collecting instrument, frequency converter, vertical U-shaped pipe is imbedded to be needed in the geodetic source, and vertical U-shaped pipe is connected with water inlet with the water outlet of water tank, and electric heater places the bottom of water tank, two temperature sensors place water delivering orifice and the water inlet of vertical U-shaped pipe respectively, flowmeter places the water inlet of water tank, and flowmeter and two temperature sensor signals are sent into data collecting instrument, places the temperature sensor signal of vertical U-shaped pipe water inlet to send PID controller, the PID controller produces output signal and send Power Regulation instrument control electric heater, and frequency converter outputs a control signal to water circulating pump.
2. according to the described portable earth source heat pump soil thermal response tester of claim 1, it is characterized in that, can add a multi-functional switch in the described electric heater current supply circuit, to realize the switching of constant heat flux and these two kinds of operational modes of steady temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320126796 CN203148866U (en) | 2013-03-20 | 2013-03-20 | Mobile soil thermal response tester for ground source heat pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320126796 CN203148866U (en) | 2013-03-20 | 2013-03-20 | Mobile soil thermal response tester for ground source heat pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203148866U true CN203148866U (en) | 2013-08-21 |
Family
ID=48976382
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320126796 Expired - Fee Related CN203148866U (en) | 2013-03-20 | 2013-03-20 | Mobile soil thermal response tester for ground source heat pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203148866U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103149234A (en) * | 2013-03-20 | 2013-06-12 | 上海理工大学 | Movable ground source heat pump thermal response test instrument and testing method |
| CN104280257A (en) * | 2014-09-30 | 2015-01-14 | 合肥天地源节能技术开发有限公司 | Heat exchange capability testing equipment of underground heat exchanger of ground source heat pump |
-
2013
- 2013-03-20 CN CN 201320126796 patent/CN203148866U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103149234A (en) * | 2013-03-20 | 2013-06-12 | 上海理工大学 | Movable ground source heat pump thermal response test instrument and testing method |
| CN104280257A (en) * | 2014-09-30 | 2015-01-14 | 合肥天地源节能技术开发有限公司 | Heat exchange capability testing equipment of underground heat exchanger of ground source heat pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130821 Termination date: 20180320 |