CN203705380U - Rock-soil cold-hot response testing system - Google Patents
Rock-soil cold-hot response testing system Download PDFInfo
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- CN203705380U CN203705380U CN201420036991.4U CN201420036991U CN203705380U CN 203705380 U CN203705380 U CN 203705380U CN 201420036991 U CN201420036991 U CN 201420036991U CN 203705380 U CN203705380 U CN 203705380U
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Abstract
The utility model discloses a rock-soil cold-hot response testing system, relates to the technical field of ground source heat pump, and solves the technical problems of the testing time reduction and the capability of calculating rock-soil heat exchange ability. The system comprises a data acquisition device, a constant temperature water bath device, a circulating water tank, a first circulating water pump, a second circulating water pump and two testing wells, wherein a buried pipe is respectively arranged in each of the two testing wells; one of the buried pipes is a first buried pipe; the other of the buried pipes is a second buried pipe; the water outlet of the constant temperature water bath device is connected to the water inlet of the constant temperature water bath device through the first buried pipe and the first circulating water pump; a pipe orifice temperature sensor is respectively arranged at each of the two-end pipe orifices of the first buried pipe; a plurality of in-pipe temperature sensors are respectively arranged in vertical pipe sections of the two buried pipes; the water outlet of the circulating water tank is connected to the water inlet of the circulating water tank through the second buried pipe and the second circulating water pump. The system provided by the utility model is suitable for rock-soil cold-hot response testing.
Description
Technical field
The utility model relates to ground source heat pump technology, particularly relates to a kind of technology of ground cold/thermal response pilot system.
Background technology
Earth-source hot-pump system utilizes earth surface geothermal using resource as Cooling and Heat Source, by inputting a small amount of high-grade energy, can realize the transfer of energy from low-temperature heat source to high temperature heat source, have stable, energy-conserving and environment-protective, the series of advantages such as maintenance cost is low, have obtained increasing application in the society now of being becoming tight energy day, are the exchange capability of heat of ground for the core foundation of soil source heat pump system design.A large amount of engineering practices prove, the ground exchange capability of heat of different regions has very large difference, and therefore, design is carried out ground thermal property test and have vital effect early stage.
In the hot property test system of traditional ground source heat pump rock-soil, exist following problem:
1) the hot property test system of traditional ground source heat pump rock-soil generally adopts electric heater unit or source pump to do that system heats, refrigeration module, the former can only carry out thermal response test, although the latter can carry out hot and cold response test, there is the problems such as volume is large, system complex;
2) the hot property test system of traditional ground source heat pump rock-soil is generally for single testing well, start after test need do not open heat, under the prerequisite of refrigeration module operational system to record the initial temperature of ground, then unlatching heats, refrigeration module is tested, when calculate the Average heat transfer amount of every meter of this testing well after system stability by the flow that collects and import and export water temperature value, the relative test duration is longer, and cannot analyze the impact between the exchange capability of heat of DIFFERENT SOIL layer and adjacent testing well.
Utility model content
For the defect existing in above-mentioned prior art, technical problem to be solved in the utility model is to provide one can realize the hot and cold response test of ground, and the test duration is short, can calculate the ground cold/thermal response pilot system of different depth ground exchange capability of heat.
In order to solve the problems of the technologies described above, a kind of ground cold/thermal response pilot system provided by the utility model, is characterized in that: comprise data collector, constant temperature water bath apparatus, cyclic water tank, the first water circulating pump, the second water circulating pump, and two testing wells;
In described two testing wells, be respectively embedded with a underground pipe, the underground pipe in one of them testing well is the first underground pipe, and the underground pipe in another testing well is the second underground pipe;
The water delivering orifice of described constant temperature water bath apparatus is received the water inlet end mouth of pipe of the first underground pipe, and the water delivering orifice of constant temperature water bath apparatus is equipped with a flow sensor for detection of its water flow;
The water side mouth of pipe of described the first underground pipe is received the water inlet of the first water circulating pump, and the water delivering orifice of the first water circulating pump is received the water inlet of constant temperature water bath apparatus;
In the water inlet end mouth of pipe of described the first underground pipe and in the mouth of pipe of water side, be respectively provided with a mouth of pipe temperature sensor, in each vertical segment of the first underground pipe, be respectively provided with temperature sensor in multiple pipes of laying along vertical equi-spaced apart;
The water delivering orifice of described cyclic water tank is received the water inlet end mouth of pipe of the second underground pipe, and the water delivering orifice of cyclic water tank is equipped with a flow sensor for detection of its water flow;
The water side mouth of pipe of described the second underground pipe is received the water inlet of the second water circulating pump, and the water delivering orifice of the second water circulating pump is received the water inlet of cyclic water tank;
In each vertical segment of described the second underground pipe, be respectively provided with temperature sensor in multiple pipes of laying along vertical equi-spaced apart;
Temperature sensor in two flow sensors and two mouth of pipe temperature sensors, each pipe, receives respectively the data acquisition port of data collector.
Further, in each pipe, the vertical laying spacing of temperature sensor is 5～10 meters.
Further, the physical dimension of described two testing wells is all consistent, and the spacing between two testing wells is 2～5 meters.
Further, described the first water circulating pump, the second water circulating pump are variable frequency pump, and the water inlet of the water inlet of the first water circulating pump and the second water circulating pump is respectively equipped with an expansion tank.
The ground cold/thermal response pilot system that the utility model provides, can carry out the cold response test of ground source heat pump rock-soil and thermal response test, testing apparatus compact conformation, control accuracy are high, temperature sensing module is placed in underground pipe and can reuses, can measure different depth place tube fluid temperature, calculate the exchange capability of heat of different depth ground, can in measuring ground initial temperature, carry out hot and cold response test, shorten the test duration.
Brief description of the drawings
Fig. 1 is the structural representation of the ground cold/thermal response pilot system of the utility model embodiment.
Embodiment
Below in conjunction with brief description of the drawings, embodiment of the present utility model is described in further detail, but the present embodiment is not limited to the utility model, every employing analog structure of the present utility model and similar variation thereof, all should list protection domain of the present utility model in.
As shown in Figure 1, a kind of ground cold/thermal response pilot system that the utility model embodiment provides, it is characterized in that: comprise data collector 8, constant temperature water bath apparatus 2, cyclic water tank 1, the first water circulating pump 31, the second water circulating pump 32, and two testing wells;
In described two testing wells, be respectively embedded with a underground pipe, the underground pipe in one of them testing well is the first underground pipe 51, and the underground pipe in another testing well is the second underground pipe 52;
The water delivering orifice of described constant temperature water bath apparatus 2 is received the water inlet end mouth of pipe of the first underground pipe 51, and the water delivering orifice of constant temperature water bath apparatus 2 is equipped with a flow sensor 41 for detection of its water flow, and this flow sensor 41 is first flow sensor;
The water side mouth of pipe of described the first underground pipe 51 is received the water inlet of the first water circulating pump 31, and the water delivering orifice of the first water circulating pump 31 is received the water inlet of constant temperature water bath apparatus 2;
In the water inlet end mouth of pipe of described the first underground pipe 51 and be respectively provided with in the mouth of pipe of water side in each vertical segment of a mouth of pipe temperature sensor 6, the first underground pipes 51 and be respectively provided with temperature sensor 7 in multiple pipes of laying along vertical equi-spaced apart;
The water delivering orifice of described cyclic water tank 1 is received the water inlet end mouth of pipe of the second underground pipe 52, and the water delivering orifice of cyclic water tank 1 is equipped with a flow sensor 42 for detection of its water flow, and this flow sensor 42 is second quantity sensor;
The water side mouth of pipe of described the second underground pipe 52 is received the water inlet of the second water circulating pump 32, and the water delivering orifice of the second water circulating pump 32 is received the water inlet of cyclic water tank 1;
In each vertical segment of described the second underground pipe 52, be respectively provided with temperature sensor 7 in multiple pipes of laying along vertical equi-spaced apart;
Temperature sensor 7 in two flow sensors 41,42 and two mouth of pipe temperature sensors 6, each pipe, receives respectively the data acquisition port of data collector 8.
In the utility model embodiment, described data collector, constant temperature water bath apparatus are prior art, data collector is for gathering the detection data of temperature sensor in each flow sensor and each mouth of pipe temperature sensor, each pipe, data collector can adopt recording instrument without paper, or there is the miscellaneous equipment of data acquisition function, constant temperature water bath apparatus, for the thermostatted water of 5～70 DEG C is provided, is realized cold response test and the thermal response test of permanent leaving water temperature.
In the utility model embodiment, described flow sensor is electromagnetic flowmeter, and in described mouth of pipe temperature sensor, pipe, temperature sensor is high-precision platinum resistor temperature sensor, and in each pipe, the vertical laying spacing of temperature sensor is 5～10 meters.
In the utility model embodiment, the physical dimension of described two testing wells is all consistent, and the spacing between two testing wells is 2～5 meters.
In the utility model embodiment, described the first water circulating pump, the second water circulating pump are variable frequency pump, and the water inlet of the water inlet of the first water circulating pump 31 and the second water circulating pump 32 is respectively equipped with an expansion tank 9.
The use-pattern of the utility model embodiment is as follows:
While carrying out ground thermal response test, constant temperature water bath apparatus is adjusted to thermal response pattern, open the first water circulating pump, the second water circulating pump, and utilize data collector to gather two flow sensors and two mouth of pipe temperature sensors, the detection data of temperature sensor in each pipe, the acquisition interval time is 2 minutes, and regulate the frequency of operation of the first water circulating pump and the second water circulating pump according to the detection data of two flow sensors, make both there is identical discharge, control the water inlet end mouth of pipe temperature (this temperature can detect by the mouth of pipe temperature sensor in this mouth of pipe) of the first underground pipe by the leaving water temperature of regulating thermostatic water bath device,
When the detected temperature value of temperature sensor in each pipe in the second underground pipe in 4 hours when obviously fluctuating, think that the interior detected temperature value of temperature sensor of each pipe in the second underground pipe is the initial temperature value of soil, the mean value that is positioned at the detected temperature of each pipe temperature sensor of same depth in the second underground pipe is the initial temperature of this deep soil.
When the detected temperature value of temperature sensor in each pipe in the first underground pipe in 4 hours when obviously fluctuating, and when obvious fluctuation of the import and export water temperature that two mouth of pipe temperature sensors of the first underground pipe mouth of pipe detect nothing in 4 hours, think that this thermal response (or cold response) test reaches stable, the mean value that is positioned at the detected temperature of each pipe temperature sensor of same depth in the first underground pipe is the temperature-averaging value of this deep soil, the flow value detecting according to first flow sensor, and the import and export water temperature that detects of two mouth of pipe temperature sensors of the first underground pipe mouth of pipe, the temperature-averaging value of each deep soil in the first underground pipe, can calculate the heat exchange amount of the first testing well at different depth, in this process, recirculated water in the first underground pipe rejects heat in soil and along horizontal direction the second testing well is exerted an influence, in this process in the second underground pipe in the pipe of each depth temperature sensor monitors to temperature value there will be rising phenomenon, the flow detection value of each flow sensor collecting according to each moment and the temperature detection value of each temperature sensor, can test thermal response time, the coefficient of heat conductivity of each moment different depth place ground calculates, the coefficient of heat conductivity of different depth ground is averaged and can be tried to achieve the mean coefficient of heat conductivity of thermal response when test ground,
While carrying out the cold response test of ground, constant temperature water bath apparatus is adjusted to cold response modes, other test process and thermal response test process are similar.
Claims (4)
1. a ground cold/thermal response pilot system, is characterized in that: comprise data collector, constant temperature water bath apparatus, cyclic water tank, the first water circulating pump, the second water circulating pump, and two testing wells;
In described two testing wells, be respectively embedded with a underground pipe, the underground pipe in one of them testing well is the first underground pipe, and the underground pipe in another testing well is the second underground pipe;
The water delivering orifice of described constant temperature water bath apparatus is received the water inlet end mouth of pipe of the first underground pipe, and the water delivering orifice of constant temperature water bath apparatus is equipped with a flow sensor for detection of its water flow;
The water side mouth of pipe of described the first underground pipe is received the water inlet of the first water circulating pump, and the water delivering orifice of the first water circulating pump is received the water inlet of constant temperature water bath apparatus;
In the water inlet end mouth of pipe of described the first underground pipe and in the mouth of pipe of water side, be respectively provided with a mouth of pipe temperature sensor, in each vertical segment of the first underground pipe, be respectively provided with temperature sensor in multiple pipes of laying along vertical equi-spaced apart;
The water delivering orifice of described cyclic water tank is received the water inlet end mouth of pipe of the second underground pipe, and the water delivering orifice of cyclic water tank is equipped with a flow sensor for detection of its water flow;
The water side mouth of pipe of described the second underground pipe is received the water inlet of the second water circulating pump, and the water delivering orifice of the second water circulating pump is received the water inlet of cyclic water tank;
In each vertical segment of described the second underground pipe, be respectively provided with temperature sensor in multiple pipes of laying along vertical equi-spaced apart;
Temperature sensor in two flow sensors and two mouth of pipe temperature sensors, each pipe, receives respectively the data acquisition port of data collector.
2. ground cold/thermal response pilot system according to claim 1, is characterized in that: in each pipe, the vertical laying spacing of temperature sensor is 5～10 meters.
3. ground cold/thermal response pilot system according to claim 1, is characterized in that: the physical dimension of described two testing wells is all consistent, and the spacing between two testing wells is 2～5 meters.
4. ground cold/thermal response pilot system according to claim 1, is characterized in that: described the first water circulating pump, the second water circulating pump are variable frequency pump, the water inlet of the water inlet of the first water circulating pump and the second water circulating pump is respectively equipped with an expansion tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420036991.4U CN203705380U (en) | 2014-01-21 | 2014-01-21 | Rock-soil cold-hot response testing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420036991.4U CN203705380U (en) | 2014-01-21 | 2014-01-21 | Rock-soil cold-hot response testing system |
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| Publication Number | Publication Date |
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| CN203705380U true CN203705380U (en) | 2014-07-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420036991.4U Expired - Fee Related CN203705380U (en) | 2014-01-21 | 2014-01-21 | Rock-soil cold-hot response testing system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103792255A (en) * | 2014-01-21 | 2014-05-14 | 上海建科建筑节能技术有限公司 | Rock soil cold and hot response testing system |
-
2014
- 2014-01-21 CN CN201420036991.4U patent/CN203705380U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103792255A (en) * | 2014-01-21 | 2014-05-14 | 上海建科建筑节能技术有限公司 | Rock soil cold and hot response testing system |
| CN103792255B (en) * | 2014-01-21 | 2017-01-18 | 上海建科建筑节能技术股份有限公司 | Rock soil cold and hot response testing system |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140709 Termination date: 20170121 |
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| CF01 | Termination of patent right due to non-payment of annual fee |