CN201508338U - Soil thermal property parameter measuring device - Google Patents
Soil thermal property parameter measuring device Download PDFInfo
- Publication number
- CN201508338U CN201508338U CN200920246666XU CN200920246666U CN201508338U CN 201508338 U CN201508338 U CN 201508338U CN 200920246666X U CN200920246666X U CN 200920246666XU CN 200920246666 U CN200920246666 U CN 200920246666U CN 201508338 U CN201508338 U CN 201508338U
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Abstract
The utility model relates to a soil thermal property parameter measuring device. The device comprises a medium circulating pipeline and a medium container, wherein a heating device is arranged in the medium container, a circulating water pump is arranged between the medium circulating pipeline and the medium container, an inlet and an outlet of the medium circulating pipeline are connected with a prearranged medium pipeline which is arranged in soil which needs measuring, temperature sensor groups for measuring temperature of layered soil are arranged on the inner all or the outer wall of the prearranged medium pipeline, the temperature sensor groups comprise two temperature sensors, each temperature sensor is arranged according to prearranged distance, a flow capacity sensor is further arranged on the medium circulating pipeline, and the sensor groups and the flow capacity sensor are respectively connected with a data measuring control device. The technical solution of the utility model can accurately measure the temperature of each underground soil layer, and can precisely and reliably obtain the thermal property parameter of each layer soil according to the measured temperature of each layer soil, thereby providing basis for designing soil source heat pumps.
Description
Technical field
The utility model relates to soil thermal physical property parameter measuring technique, particularly relates to a kind of soil thermal physical property parameter measurement mechanism.
Background technology
Along with people's improving constantly to environmental protection consciousness; increasing building adopts the soil source heat pump technology to come heating and cooling; wherein; soil source heat pump is to utilize the soil characteristics of temperature stabilization throughout the year; can be as the thermal source of heat pump heating during winter with soil; promptly the heat energy in the soil energy that is higher than environment temperature is taken out for indoor heating; can be as the low-temperature receiver of air-conditioning during summer with soil; promptly indoor heat energy is taken out and be discharged in the soil that is lower than environment temperature; the not exhaust emission because soil source heat pump is in operation; energy resource consumption is low, therefore, utilizes soil source heat pump to carry out heating and cooling and has higher energy-conservation and environment protecting.
The heat interchanger of soil source heat pump system is to be used for connecting building and soil, and between carries out the important device of heat interchange, vertical U type heat exchange of heat pipe is exactly wherein a kind of more common heat interchanger, because the design of heat interchanger depends primarily on the cooling and heating load of building, soil thermal physical property parameters such as the initial temperature of soil and the coefficient of heat conductivity of soil and specific heat capacity, therefore, when carrying out U type heat exchange tube design and burying underground, need obtain the thermal physical property parameter of soil, so that for soil source heat pump system provides design considerations, at present, the thermal physical property parameter of soil generally is to obtain after measuring after the relevant parameter in post thermal source heat transfer model by certain calculating by the soil thermal property tester.
The soil thermal property tester of prior art generally includes circulation line, adiabatic media Containers, medium temperature detection record system, decides power heating system and pipeline medium circulation flow detection register system, wherein, before tester is started working, the circulation line import and export are connected with the import and export of the U type heat exchanger that is provided with respectively, form the circulatory mediator loop; Decide the power heating system and comprise well heater, be used for the pipeline circulatory mediator is heated with constant power; Medium temperature detection record system comprises two thermal resistances or galvanic couple temperature sensor, is separately positioned on the import and the outlet junction of circulation line and U type heat exchanger, is used to measure the temperature that enters and flow out the medium of import of U type heat exchanger and outlet; Pipeline medium circulation flow detection register system comprises flow sensor, is used to detect the data with the recording medium flow.When measuring, at first ON cycle pump when not heater or refrigeratory when making medium circulation to equilibrium temperature in circulation line, obtains the initial temperature data of soil by temperature sensor; After initial temperature is measured, utilization is decided power heater or refrigeratory heating medium and is circulated in pipeline, and the temperature data during the medium circulation operation of U type heat exchanger import and outlet when at interval certain hour writes down corresponding time point, and the rate-of flow data in the same time point loop; At last, temperature data and data on flows during according to the initial temperature data of the soil that measures, medium circulation operation obtain the thermal physical property parameter of soil by iterative computation in post thermal source heat transfer model.
To sum up, when prior art soil thermal property tester is measured, can only measure the temperature of pipe import of U type and exit medium, and ignored of the influence of water pump self-heating to water temperature, the temperature that records is the medial temperature of whole underground, be that the prior art tester is that whole underground is measured as a whole, and in fact underground is vertical demixing distribution ground, the initial temperature of each stratified soil has than big-difference, therefore, the thermal physical property parameter of the soil that calculates according to the temperature data that measures is the mean value of soil, it can not feed back the characteristic of soil layer distributed exactly, thereby the thermal physical property parameter out of true of the feasible soil that obtains, measurement result is unreliable.
The utility model content
The purpose of this utility model provides a kind of soil thermal physical property parameter measurement mechanism, can effectively measure the temperature of underground each stratified soil, the thermal physical property parameter that obtains each stratified soil according to the temperature of each stratified soil that measures can effectively feed back the true distribution situation of soil, thereby can effectively improve accuracy and reliability that the thermal physical property parameter of soil is measured.
For achieving the above object, the utility model provides a kind of soil thermal physical property parameter measurement mechanism, comprise: medium circulation pipeline and the media Containers that is used to provide circulatory mediator that is connected with described medium circulation pipeline, wherein, be provided with the heating arrangement that is used for the heat cycles medium in the described media Containers; Be provided with the water circulating pump that is used to provide circulation power between described medium circulation pipeline and the media Containers, the import of described medium circulation pipeline and outlet are connected with default medium pipeline in being arranged on soil to be measured, make described circulation line and described default medium pipeline formation loop;
The inwall of described default medium pipeline or outer wall are provided with the sets of temperature sensors that is used to measure the stratified soil temperature, and described sets of temperature sensors comprises at least two temperature sensors, and each temperature sensor is pressed the predeterminable range setting; Also be provided with the flow sensor that is used for the measuring media flow on the described medium circulation pipeline; Described sensor groups is connected with the DATA REASONING control device respectively with flow sensor.
Wherein, also be provided with the equalizing valve that is used to regulate the circulatory mediator flow between described medium circulation pipeline and the media Containers.Described heating arrangement is an electric heater, is arranged in the described media Containers.Described media Containers comprises water filling port, first connector that is connected with described water circulating pump and second connector that is connected with described medium circulation pipeline that is used to inject circulatory mediator.The quantity of temperature sensor can be 50-100, and evenly is vertically set on the inwall or outer wall of described default medium pipeline at interval.
In addition, described soil thermal physical property parameter measurement mechanism also can comprise the control center that is used to control described water circulating pump, DATA REASONING control device and heating arrangement operation.
The utility model provides a kind of soil thermal physical property parameter measurement mechanism, by the sensor groups that comprises a plurality of temperature sensors that is provided with, can measure the initial temperature of each stratified soil, the temperature that circulatory mediator water carries out each stratified soil in the heat exchanging process effectively, temperature data according to each stratified soil that measures, can accurately calculate the thermal physical property parameter of each stratified soil, improve accuracy and reliability that the soil thermal physical property parameter is measured, so that for the design of soil source heat pump provides data reliably, improve the accuracy of soil source heat pump design.
Description of drawings
Fig. 1 is the structural representation of the utility model soil thermal physical property parameter measurement mechanism embodiment.
Embodiment
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
Because underground is the layering vertical distribution, the temperature of the soil of different layerings position is inequality, underground is not to be the vertical distribution of homogeneous, therefore, at prior art when the thermal physical property parameter that carries out soil is measured, generally soil to be measured is all regarded as the single cylinder of temperature distribution equalizing, the utility model embodiment provides a kind of soil thermal physical property parameter measurement mechanism, characteristic according to the distribution of soil vertical demixing, can detect the stratification temperature of each stratified soil effectively, thereby feasible stratification temperature according to each stratified soil, calculate the thermal physical property parameter of each stratified soil, the thermal physical property parameter of the soil of acquisition is accurate, reliably, can effectively feed back the actual distribution situation of soil, improve the accuracy that the soil thermal physical property parameter is measured, think that the design of soil source heat pump provides foundation.
Fig. 1 is the structural representation of the utility model soil thermal physical property parameter measurement mechanism embodiment.Particularly, as shown in Figure 1, the utility model embodiment device comprises: medium circulation pipeline 1, media Containers 2, the sensor groups 3 that comprises at least two temperature sensors, flow sensor 4 and DATA REASONING control device 5, wherein, media Containers 2 can be stored the water that is used to medium circulation pipeline 1 that circulatory mediator is provided, it is connected with medium circulation pipeline 1, simultaneously, also is provided with the heating arrangement 6 that is used for the heat cycles WATER AS FLOW MEDIUM in the media Containers 2; Be provided with water circulating pump 7 between medium circulation pipeline 1 and the media Containers 2, the circulation power of circulatory mediator water is provided; The import of medium circulation pipeline 1 and outlet respectively be arranged on soil to be measured in default medium pipeline 8 is connected so that loop that is used for circulatory mediator circulation capable of circulation of this medium circulation pipeline 1 and default medium pipeline 8 formation; Sensor groups 3 is arranged on the inwall or outer wall of default medium pipeline 8, and each sensor in the sensor groups 3 presses the predeterminable range setting, to be used to measure the temperature of each stratified soil; Flow sensor 4 is arranged on the medium circulation pipeline 1, is used for the flow of medium in the measuring media circulation line 1; Sensor groups 3 is connected with DATA REASONING control device 5 with flow sensor 4, by each sensor in the DATA REASONING control device 5 control sensor groups 3 and the operation of flow sensor 4, and each sensor in the receiving sensor group 3 and flow sensor 4 temperature data and the data on flows that record.According to the temperature data and the data on flows of each stratified soil in the soil that measures, can be by calculating the thermal physical property parameter of each stratified soil, so that provide foundation for the design of soil source heat pump.
In the practical application, described media Containers 2 can comprise water filling port, first connector that is connected with water circulating pump and second connector that is connected with the medium circulation pipeline that is used to inject circulatory mediator water, fit together reliably so that medium circulation pipeline 1, water circulating pump 7 and media Containers 2 are convenient, simultaneously, can be convenient to for adding medium circulation water in the media Containers.In addition, described heating arrangement 6 can be electric heater, is arranged in the media Containers 2, and the power that this electric heater can be fixed heats, and the heating power of this electric heater is adjustable, with heating process in, can satisfy the needs that in the practical application circulatory mediator water heated.
In addition, as shown in Figure 1, also can be provided with equalizing valve 9 between medium circulation pipeline 1 and the media Containers 2, be used for circulatory mediator flow in the regulation loop.Described soil thermal physical property parameter measurement mechanism also can comprise control center 10, be connected with water circulating pump 7, DATA REASONING control device 5 and heating arrangement 6, be used to control the operation of each parts, by this control center 10, can control water circulating pump 7, heating arrangement 6 and DATA REASONING control device 5 effectively, to finish measurement accurately and reliably, obtain required measurement data to temperature data and data on flows.
In the practical application, the number operated by rotary motion of sets of temperature sensors 3 inner sensors is more than 10, can set according to the actual needs, the degree of depth of the Tube Sheet of Heat Exchanger of burying underground as needs, can set 50-100, particularly, the quantity of temperature sensor is set at 100 in the present embodiment, and is vertically set on evenly and at intervals on the inwall or outer wall of default medium pipeline.Wherein, correspondingly stratified soil can be represented in the position of the setting of each temperature sensor, by the temperature sensor of each position, can determine the temperature of soil residing stratified soil in relevant position when each condition.
In addition, as shown in Figure 1, also can first outlet temperature sensor and second outlet temperature sensor be set in the present embodiment at the import and export of default medium pipeline, outlet temperature according to the default medium pipeline of measuring, can assess the heat of default medium pipeline, for the design of whole soil source heat pump system provides foundation.
Concrete measuring process to the utility model embodiment describes below, so that technical solutions of the utility model are had a better understanding, particularly, when utilizing the utility model embodiment to treat measured soil to measure, can may further comprise the steps:
Measurement mechanism installs and waits for 2～3 days, when treating that the soil moisture returns to original state, under the control of control center 10 and DATA REASONING control device 5, initial temperature by each stratified soil of temperature sensor measurement, and read and write down the temperature that each temperature sensor measurement of sets of temperature sensors 3 obtains by DATA REASONING control device 5, the temperature of each temperature sensor of record should with sensor that the position is set is corresponding so that can calculate the thermal physical property parameter that each sensor is provided with the pairing stratified soil in position exactly.Particularly, when carrying out temperature survey, after each sensor in the sensor groups 3 can be laid in the U type heat exchanger tube by predeterminable range, can be numbered each sensor, when detecting and during the detected temperatures of record sensor, when the temperature that each temperature sensor measurement is obtained writes down, carry out corresponding with the numbering of respective sensor, to guarantee the accuracy and the reliability of temperature data record, simultaneously, also be convenient to the record of temperature data and call.
The temperature of each stratified soil in step 3, the measurement circulatory mediator hydrothermal exchange process.
After the initial temperature measurement of each stratified soil finishes, can be by water filling port top-off cycle WATER AS FLOW MEDIUM in media Containers 2, and by control center's 10 ON cycle water pumps 7, utilize the flow of water in the equalizing valve regulation loop simultaneously, treat that heating arrangement is opened in the stable back of water cycle in the loop, and the constant heating power heat cycles WATER AS FLOW MEDIUM to regulate.Then, detect and write down the temperature data that each temperature sensor detection obtains in the sensor groups 3 at a certain time interval, simultaneously, when carrying out temperature survey, detection and recorded stream quantity sensor 4 detect the flow of circulatory mediator water in loop that obtains at the same time, device circular flow to be measured 2～3 days when the temperature data that the detection of DATA REASONING control device obtains tends towards stability, is closed water circulating pump and heating arrangement.
The temperature of each stratified soil in step 4, the measured soil temperature rejuvenation.
Measure when step 3 and to finish, close water circulating pump and heating arrangement after, continue at a certain time interval to detect and the temperature of record soil restoration in the initial temperature process, till the initial temperature, soil moisture rejuvenation was generally 3 days up to soil restoration.
As can be seen, the utility model embodiment soil thermal physical property parameter measurement mechanism can obtain the temperature of various state lower leaf soil by above step, according to the temperature data under the various states that measure, and the heating power when data on flows that measures and heat cycles WATER AS FLOW MEDIUM, can be by in post thermal source heat transfer model, calculating the thermal physical property parameter of each stratified soil, thermal physical property parameter according to each stratified soil that obtains can design soil source heat pump, to satisfy the practical design needs.
The sensor groups that comprise a plurality of temperature sensors of the utility model embodiment soil thermal physical property parameter measurement mechanism by being provided with, can measure the initial temperature of each stratified soil, the temperature that circulatory mediator water carries out each stratified soil in the heat exchanging process effectively, temperature data according to each stratified soil that measures, can accurately calculate the thermal physical property parameter of each stratified soil, improve accuracy and reliability that the soil thermal physical property parameter is measured, so that for the design of soil source heat pump provides data reliably, improve the accuracy of soil source heat pump design.
It should be noted that at last: above embodiment is only in order to explanation the technical solution of the utility model but not limit it, although the utility model is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that: it still can make amendment or be equal to replacement the technical solution of the utility model, and these modifications or be equal to replacement and also can not make amended technical scheme break away from the spirit and scope of technical solutions of the utility model.
Claims (6)
1. soil thermal physical property parameter measurement mechanism, it is characterized in that, comprise: medium circulation pipeline and the media Containers that is used to provide circulatory mediator that is connected with described medium circulation pipeline wherein, are provided with the heating arrangement that is used for the heat cycles medium in the described media Containers; Be provided with the water circulating pump that is used to provide circulation power between described medium circulation pipeline and the media Containers, the import of described medium circulation pipeline and outlet are connected with default medium pipeline in being arranged on soil to be measured, make described circulation line and described default medium pipeline formation loop;
The inwall of described default medium pipeline or outer wall are provided with the sets of temperature sensors that is used to measure the stratified soil temperature, and described sets of temperature sensors comprises at least two temperature sensors, and each temperature sensor is pressed the predeterminable range setting; Also be provided with the flow sensor that is used for the measuring media flow on the described medium circulation pipeline; Described sensor groups is connected with the DATA REASONING control device respectively with flow sensor.
2. soil thermal physical property parameter measurement mechanism according to claim 1 is characterized in that, also is provided with the equalizing valve that is used to regulate the circulatory mediator flow between described medium circulation pipeline and the media Containers.
3. soil thermal physical property parameter measurement mechanism according to claim 1 is characterized in that described heating arrangement is an electric heater, is arranged in the described media Containers.
4. soil thermal physical property parameter measurement mechanism according to claim 1 is characterized in that, also comprises the control center that is used to control described water circulating pump, DATA REASONING control device and heating arrangement operation.
5. soil thermal physical property parameter measurement mechanism according to claim 1, it is characterized in that described media Containers comprises water filling port, first connector that is connected with described water circulating pump and second connector that is connected with described medium circulation pipeline that is used to inject circulatory mediator.
6. soil thermal physical property parameter measurement mechanism according to claim 1 is characterized in that, the quantity of temperature sensor is 50-100, and evenly is vertically set on the inwall or outer wall of described default medium pipeline at interval.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920246666XU CN201508338U (en) | 2009-10-23 | 2009-10-23 | Soil thermal property parameter measuring device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN200920246666XU CN201508338U (en) | 2009-10-23 | 2009-10-23 | Soil thermal property parameter measuring device |
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| CN201508338U true CN201508338U (en) | 2010-06-16 |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101916504A (en) * | 2010-07-16 | 2010-12-15 | 天津市国土资源和房屋管理局 | Distributed tandem earth-layer fine temperature measurement and wire transmission and acquisition system |
| CN102288638A (en) * | 2011-07-07 | 2011-12-21 | 三江学院 | Ground source heat pump thermal response testing system based on PLC (Programmable Logic Controller) |
| CN102818818A (en) * | 2012-08-21 | 2012-12-12 | 吉林大学 | Sandy soil medium thermal conductivity detection system for experiments |
| CN102854215A (en) * | 2012-08-31 | 2013-01-02 | 中国建筑科学研究院 | Soil thermophysical property parameter measuring device and measuring method |
| CN102854214A (en) * | 2012-08-31 | 2013-01-02 | 中国建筑科学研究院 | Soil thermophysical property parameter measuring device and measuring method |
| CN103243699A (en) * | 2013-05-22 | 2013-08-14 | 国家电网公司 | Transducer for measuring thermal parameters of soil around cable |
| CN103439356A (en) * | 2013-06-05 | 2013-12-11 | 中国石油大学(华东) | Experimental apparatus and method for constant-pressure specific heat measurement of supercritical carbon dioxide |
| CN105372288A (en) * | 2015-10-28 | 2016-03-02 | 中国农业大学 | Heat flow rate measuring instrument and measuring method |
| CN113798314A (en) * | 2021-09-30 | 2021-12-17 | 上海市政工程设计研究总院（集团）有限公司 | Control method of segmented electric heating in-situ thermal desorption remediation system for contaminated site |
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2009
- 2009-10-23 CN CN200920246666XU patent/CN201508338U/en not_active Expired - Fee Related
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101916504B (en) * | 2010-07-16 | 2012-11-14 | 天津市国土资源和房屋管理局 | Distributed tandem earth-layer fine temperature measurement and wire transmission and acquisition system |
| CN101916504A (en) * | 2010-07-16 | 2010-12-15 | 天津市国土资源和房屋管理局 | Distributed tandem earth-layer fine temperature measurement and wire transmission and acquisition system |
| CN102288638A (en) * | 2011-07-07 | 2011-12-21 | 三江学院 | Ground source heat pump thermal response testing system based on PLC (Programmable Logic Controller) |
| CN102818818B (en) * | 2012-08-21 | 2014-07-30 | 吉林大学 | Sandy soil medium thermal conductivity detection system for experiments |
| CN102818818A (en) * | 2012-08-21 | 2012-12-12 | 吉林大学 | Sandy soil medium thermal conductivity detection system for experiments |
| CN102854215A (en) * | 2012-08-31 | 2013-01-02 | 中国建筑科学研究院 | Soil thermophysical property parameter measuring device and measuring method |
| CN102854214A (en) * | 2012-08-31 | 2013-01-02 | 中国建筑科学研究院 | Soil thermophysical property parameter measuring device and measuring method |
| CN103243699A (en) * | 2013-05-22 | 2013-08-14 | 国家电网公司 | Transducer for measuring thermal parameters of soil around cable |
| CN103243699B (en) * | 2013-05-22 | 2015-12-23 | 国家电网公司 | A kind of cable surrounding soil thermal parameter measurement sensor |
| CN103439356A (en) * | 2013-06-05 | 2013-12-11 | 中国石油大学(华东) | Experimental apparatus and method for constant-pressure specific heat measurement of supercritical carbon dioxide |
| CN103439356B (en) * | 2013-06-05 | 2016-08-10 | 中国石油大学(华东) | The experimental provision measured for supercritical carbon dioxide specific heat at constant pressure and method |
| CN105372288A (en) * | 2015-10-28 | 2016-03-02 | 中国农业大学 | Heat flow rate measuring instrument and measuring method |
| CN105372288B (en) * | 2015-10-28 | 2018-02-13 | 中国农业大学 | A kind of rate of heat flow measuring instrument and measuring method |
| CN113798314A (en) * | 2021-09-30 | 2021-12-17 | 上海市政工程设计研究总院（集团）有限公司 | Control method of segmented electric heating in-situ thermal desorption remediation system for contaminated site |
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