CN102564648A - Thermostatic bath end cover for verifying pairing temperature sensor of heat meter - Google Patents
Thermostatic bath end cover for verifying pairing temperature sensor of heat meter Download PDFInfo
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- CN102564648A CN102564648A CN2012100023199A CN201210002319A CN102564648A CN 102564648 A CN102564648 A CN 102564648A CN 2012100023199 A CN2012100023199 A CN 2012100023199A CN 201210002319 A CN201210002319 A CN 201210002319A CN 102564648 A CN102564648 A CN 102564648A
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- calibration cell
- end cap
- soaking plate
- temperature sensor
- thermostatic bath
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Abstract
The invention provides a thermostatic bath end cover for verifying a pairing temperature sensor of heat meter. The end cover is matched with a working cavity of a thermostatic bath. The end cover comprises a uniform temperature plate at the bottom, a flow guide plate above the uniform temperature plate and a flow baffle plate above the flow guide plate. Liquid in the thermostatic bath at the position of the uniform temperature plate has uniform temperature distribution. The flow guide plate is used for maintaining the stability of the liquid in the thermostatic bath and reducing heat convection. By means of the end cover with a structure of three layers, the working liquid level of the thermostatic bath is increased, verification for the pairing temperature sensor of heat meter can be performed on a level 20mm under the liquid level of the thermostatic bath, and technical problems including shortness of the pairing temperature sensor of heat meter and high verification difficulty are solved.
Description
Technical field
The present invention relates to a kind of calibrating calibration cell end cap, especially relate to a kind of calorimeter pairing temperature sensor calibrating calibration cell end cap, be specifically designed to the calibration of calorimeter pairing temperature sensor.
Background technology
At present, calorimeter is widely used in heat supply and measures, and the user can regulate heating temperature as required, controls employed heat, prevents energy dissipation.Calorimeter mainly is made up of flow sensor, pairing temperature sensor and counter; The principle of work of calorimeter is: pairing temperature sensor is installed in respectively on the entrance and exit pipeline of heat exchange loop, flow sensor is installed on inlet or the outlet conduit; Flow sensor sends flow signal, and pairing temperature sensor provides the temperature signal of entrance and exit, and counter is gathered flow signal and temperature signal, through calculating, demonstrates the heat that thermal liquid is discharged to outlet from inlet.Usually, calorimeter need be calibrated the accuracy of its measurement when using before or overhaul afterwards, to guarantee the accuracy through the heat of calorimeter measurement.The calibrating installation of calorimeter is to produce according to the related request design of JJG225-2001 national metrological verification regulations heat energy table and CJ128-2000 city-building industry standard calorimeter; Its principle is that proving flowmeter and tested calorimeter are connected in the pipeline; Two calibration cells are simulated the out temperature in the pipe line, two temperature sensors of two standard thermometers that install and tested calorimeter are placed the calibration cell of two design temperatures respectively.Obtain the normal stream value through proving flowmeter; Two standard thermometers obtain the numerical value of the temperature and the temperature difference; Calculate the standard calorie value in the calibrating time according to associated hot mechanics formula; The actual calorie value that records of this numerical value and calorimeter compared can draw the accuracy of tested calorimeter, accomplishes calibrating.
In calibrating installation, owing to need to use calibration cell simulation out temperature, so that two temperature sensors are examined and determine; Usually pairing thermometer sensor is inserted into the liquid medium of calibration cell from the loam cake of calibration cell; Yet end cap one side as calibration cell contacts with external, and the liquid in opposite side and the calibration cell is contiguous, thereby there are heat interchange in the calibration cell and the external world; Cause to produce temperature difference in vertical direction usually near the liquid of very steady groove annex, the accuracy of influence calibrating; In addition, because pairing temperature sensor is shorter, its submergence in calibration cell is smaller, and standard thermometer and pairing temperature sensor possibly be positioned at different height, cause producing certain measuring errors, influence the calibrating accuracy of pairing temperature sensor
Therefore, need to adopt suitable end cover structure to improve calibrating accuracy to pairing temperature sensor.
Summary of the invention
The purpose of this invention is to provide a kind of calorimeter pairing temperature sensor calibrating calibration cell end cap, be specifically designed to the calibration of calorimeter pairing temperature sensor, guarantee the accuracy of calibrating.
The invention provides a kind of calorimeter pairing temperature sensor calibrating calibration cell end cap; This end cap matches with the working cavity of calibration cell; This end cap comprises: be positioned at the soaking plate of below of end cap, the liquid in the calibration cell of soaking plate position has even temperature and distributes; Be positioned at the fair water fin of soaking plate top, liquid is steady in its maintenance calibration cell, reduces thermal convection; Be positioned at the spoiler of fair water fin top.
Wherein, include pairing temperature sensor on the said soaking plate and detect jack, be positioned at the standard thermometer slot on soaking plate surface, and sensor holder.
Wherein, said sensor holder is used for the lead-in wire of standard thermometer is derived.
Wherein, pairing temperature sensor in the said detection jack and the thermometer in the said standard thermometer slot are positioned at same surface level.
Wherein, the top of said spoiler has spout hole, when liquid level arrives the height of spout hole, can flow into run-down pipe and guarantee that liquid level is stable, and said run-down pipe is the outer independent pipeline of calibration cell.
Wherein, said soaking plate, fair water fin, spoiler have identical structure.
The end cap of three-decker of the present invention has reduced calibration cell and the extraneous heat interchange that exists, and has eliminated near near the temperature difference of the liquid the calibration cell end cap in vertical direction, has improved the accuracy of calibrating; Solved because pairing thermometer sensor is shorter; Need be near darker operating fluid level near the port; The big technical barrier of calibrating difficulty; The end cap of three-decker has improved the operating fluid level of calibration cell, makes the following 20mm of calibration cell liquid level can carry out the calibrating of calorimeter pairing temperature sensor.
Description of drawings
Accompanying drawing is just for the ease of it will be apparent to those skilled in the art that and embodiment of the present invention, and what it provided is the synoptic diagram of structure, and size and dimension in the accompanying drawing and position concern that conduct is not to the restriction of the apparatus structure of reality.
Fig. 1 calibration cell end cover structure synoptic diagram;
The soaking plate schematic top plan view of Fig. 2 calibration cell end cap.
Embodiment
Below in conjunction with accompanying drawing the present invention is further described, it will be appreciated by those skilled in the art that following example only is for the ease of understanding and embodiment of the present invention, and should be with on the concrete structure of limiting to scope of invention.
Comprise working cavity in the calibration cell of the present invention and the upper end cover 1 that matches with working cavity; Have the isothermal liquid medium in the working cavity, and working cavity can be various forms of containers, cooperate with upper end cover on the top of working cavity; Satisfy the calibrating of pairing temperature sensor; Owing to present invention focuses on improvement to end cap, in Fig. 1, only provided the schematic cross-section of end cap, the structure of end cap is under the constant situation of basic function; Can suitably change according to the structure of the working cavity of concrete calibration cell, to cooperate with working cavity.
End cover structure as shown in Figure 1, it comprises at least three parts, is followed successively by the soaking plate 2 of below, the middle fair water fin 3 and the spoiler 4 of the top from top to bottom.Wherein the structure of soaking plate 2, fair water fin 3 can be identical, and spoiler 4 is different with the structure of the two, and less relatively jack of quantity or thermometer slot are set on spoiler, perhaps as common end cap commonly used, has sealing function and get final product; Further, preferred soaking plate 2, fair water fin 3, spoiler 4 adopt same template manufacturing, have identical structure, are convenient to examine and determine operation, and difference only is that role is different.In addition, this end cap also can comprise other part except that above-mentioned three parts.
Be illustrated in figure 2 as the vertical view of soaking plate; This vertical view is the functional schematic of soaking plate; Structure according to concrete calibration cell; The shape of soaking plate and concrete structural design can change, and in soaking plate, comprise standard thermometer slot 5, preferably on soaking plate 2, have two standard thermometer slots, more preferably on soaking plate 2, have plural standard thermometer slot; Sensor holder 6, its lead-in wire that is used for standard thermometer are derived and are inserted standard platinum resistance thermometer usefulness during the calibration criterion thermometer, and wherein sensor holder 6 preferably is arranged on the position that keeps to the side of soaking plate 2; In Fig. 2, be provided with three sensor holders 6, be to be understood that the setting of sensor holder 6 is not limited to therewith that the quantity of sensor holder can be two, three, four or more, owing on soaking plate 2, can have a plurality of standard thermometer slots in the left side of soaking plate 2; Sensor holder 6 can be arranged alternately; For example, in the horizontal direction, a sensor holder is arranged on the left side of soaking plate; Corresponding next standard thermometer slot; Another sensor holder is arranged on the right side of soaking plate, is arranged alternately with mode like this, the maloperation that causes adjacent to one another between the sensor holder in can avoiding the use of or the generation of interference; Detect jack 7, in calibrating, pairing temperature sensor is inserted in the said jack, contact isothermal liquid medium; Run-down pipe 8; This run-down pipe is the outer independent pipeline of calibration cell; Top at the fair water fin that is positioned at the end cap the top has spout hole; When liquid level arrives the height of spout hole, can flow into run-down pipe and guarantee that liquid level is stable, said run-down pipe 8 is for running through the overflow pipe of soaking plate 2, spoiler 3, fair water fin 4.
The detection jack 7 that tested calorimeter pairing temperature sensor is arranged on the soaking plate 2; On some sides or a plurality of side, sensor holder 6 is arranged; The lead-in wire of standard thermometer is derived through sensor holder 5, perhaps inserts standard platinum resistance thermometers through sensor holder 6 during the calibration criterion thermometer, provides the temperature of the thermometer that is arranged in the standard temperature thermometer well through the lead-in wire of being derived by sensor 6; It is as the standard temperature of calibration cell in the calibrating; Shown in the vertical view of Fig. 2, on soaking plate 2, have the groove that is provided with along soaking plate plate surface, wherein standard thermometer lies in a horizontal plane in the groove; Make the temperature survey of thermometer be divided into and be limited to soaking plate near surface position, the lead-in wire of thermometer is drawn from sensor holder.In calibrating; The pairing temperature sensor of calorimeter is inserted the soaking plate of end cap; Pairing thermometer sensor is arranged in the detection jack 7 of soaking plate 2, and this detection jack has the identical degree of depth with the groove that is provided with along the soaking plate surface, thereby; Be arranged in the pairing temperature sensor that detects jack and standard thermometer on identical surface level; Simultaneously, that the effect of soaking plate 2 further is to promote to be positioned in the calibration cell is even with the temperature of the liquid of soaking plate sustained height, makes the surface level at soaking plate 2 places have uniform temperature field distribution, guarantees the consistance of pairing temperature sensor and standard thermometer measurement temperature.
The end cap of three-decker of the present invention has reduced calibration cell and the extraneous heat interchange that exists, and has eliminated near near the temperature difference of the liquid the calibration cell end cap in vertical direction, has improved the accuracy of calibrating; Solved because pairing thermometer sensor is shorter; Need be near darker operating fluid level near the port; The big technical barrier of calibrating difficulty; The end cap of three-decker has improved the operating fluid level of calibration cell, makes the following 20mm of calibration cell liquid level can carry out the calibrating of calorimeter pairing temperature sensor.
By the concrete embodiment and the description of the course of work; Can be conveniently the end cover structure of calibration cell of the present invention and principle of work be understood and implemented; But it should be appreciated by those skilled in the art that the specific embodiments or the embodiment that enumerate in this instructions, only in order to understand technology contents of the present invention; Under the situation that does not deviate from purport of the present invention and scope; The present invention can carry out multiple change in form with on the details, and those skilled in the art can be according to concrete calibrating requirement, and each parts in the foregoing description are reasonably selected and made up; And details of carrying out to a certain extent and pro forma variation, it still will drop on the present invention and require within protection and the scope of disclosure.
Claims (6)
1. calorimeter pairing temperature sensor calibrating calibration cell end cap, this end cap matches with the working cavity of calibration cell, it is characterized in that: be positioned at the soaking plate of below of end cap, the liquid in the calibration cell of soaking plate position has the even temperature distribution; Be positioned at the fair water fin of soaking plate top, liquid is steady in its maintenance calibration cell, reduces thermal convection; Be positioned at the spoiler of fair water fin top.
2. calibration cell end cap as claimed in claim 1 is characterized in that: includes pairing temperature sensor on the said soaking plate and detects jack, be positioned at the standard thermometer slot on soaking plate surface, and sensor holder.
3. calibration cell end cap as claimed in claim 2 is characterized in that: said sensor holder is used for the lead-in wire of standard thermometer is derived.
4. calibration cell end cap as claimed in claim 2 is characterized in that: the thermometer in pairing temperature sensor in the said detection jack and the said standard thermometer slot is positioned at same surface level.
5. calibration cell end cap as claimed in claim 1 is characterized in that: the top of said spoiler has spout hole, when liquid level arrives the height of spout hole, can flow into run-down pipe and guarantee that liquid level is stable, and said run-down pipe is the outer independent pipeline of calibration cell.
6. calibration cell end cap as claimed in claim 1 is characterized in that: said soaking plate, fair water fin, spoiler have identical structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210002319 CN102564648B (en) | 2012-01-06 | 2012-01-06 | Thermostatic bath end cover for verifying pairing temperature sensor of heat meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210002319 CN102564648B (en) | 2012-01-06 | 2012-01-06 | Thermostatic bath end cover for verifying pairing temperature sensor of heat meter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102564648A true CN102564648A (en) | 2012-07-11 |
| CN102564648B CN102564648B (en) | 2013-07-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201210002319 Expired - Fee Related CN102564648B (en) | 2012-01-06 | 2012-01-06 | Thermostatic bath end cover for verifying pairing temperature sensor of heat meter |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104132686A (en) * | 2014-08-04 | 2014-11-05 | 广州赛宝计量检测中心服务有限公司 | Thermostatic temperature and humidity calibration box heated through liquid |
| CN108645541A (en) * | 2018-06-15 | 2018-10-12 | 大连博控科技股份有限公司 | Temperature sensors of high precision detects special heat collector |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200942342Y (en) * | 2006-09-15 | 2007-09-05 | 王长勋 | Liquid medium thermostatic tank |
| CN201260968Y (en) * | 2008-09-08 | 2009-06-24 | 王长勋 | Cylindrical air medium high-temperature constant temperature bath |
| JP2010105912A (en) * | 2008-10-31 | 2010-05-13 | Park Sungjong | METHOD FOR PREPARING HIGH PURITY COPPER OXIDE CONTAINING A TRACE AMOUNT OF CHLORINE FROM WASTE LIQUID CONTAINING Cu(NH3)4Cl2 |
-
2012
- 2012-01-06 CN CN 201210002319 patent/CN102564648B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200942342Y (en) * | 2006-09-15 | 2007-09-05 | 王长勋 | Liquid medium thermostatic tank |
| CN201260968Y (en) * | 2008-09-08 | 2009-06-24 | 王长勋 | Cylindrical air medium high-temperature constant temperature bath |
| JP2010105912A (en) * | 2008-10-31 | 2010-05-13 | Park Sungjong | METHOD FOR PREPARING HIGH PURITY COPPER OXIDE CONTAINING A TRACE AMOUNT OF CHLORINE FROM WASTE LIQUID CONTAINING Cu(NH3)4Cl2 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104132686A (en) * | 2014-08-04 | 2014-11-05 | 广州赛宝计量检测中心服务有限公司 | Thermostatic temperature and humidity calibration box heated through liquid |
| CN108645541A (en) * | 2018-06-15 | 2018-10-12 | 大连博控科技股份有限公司 | Temperature sensors of high precision detects special heat collector |
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| Publication number | Publication date |
|---|---|
| CN102564648B (en) | 2013-07-31 |
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Granted publication date: 20130731 Termination date: 20140106 |