CN102564648B - 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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- CN102564648B CN102564648B CN 201210002319 CN201210002319A CN102564648B CN 102564648 B CN102564648 B CN 102564648B CN 201210002319 CN201210002319 CN 201210002319 CN 201210002319 A CN201210002319 A CN 201210002319A CN 102564648 B CN102564648 B CN 102564648B
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- calibration cell
- end cap
- soaking plate
- temperature sensor
- liquid
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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 before using or after the maintenance time, with the accuracy of the heat that guarantees to measure by calorimeter.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, out temperature in two calibration cells simulation pipe line places two temperature sensors of two standard thermometers of device and tested calorimeter respectively the calibration cell of two design temperatures.Obtain the normal stream value by proving flowmeter, two standard thermometers obtain the numerical value of the temperature and the temperature difference, calculate 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, finishes 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 the accuracy of influence calibrating near the liquid of very steady groove annex; In addition, because pairing temperature sensor is shorter, its submergence in calibration cell is smaller, and standard thermometer may be positioned at different height with pairing temperature sensor, causes producing certain measuring errors, influences 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 described soaking plate and detect jack, be positioned at the standard thermometer slot on soaking plate surface, and sensor holder.
Wherein, described sensor holder is used for the lead-in wire of standard thermometer is derived.
Wherein, pairing temperature sensor in the described detection jack and the thermometer in the described standard thermometer slot are positioned at same surface level.
Wherein, the top of described 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 described run-down pipe is the outer independent pipeline of calibration cell.
Wherein, described 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 the temperature difference of the liquid of close 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 to understand and enforcement the present invention for the ease of those skilled in the art, the just synoptic diagram of structure that it provides, 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
The present invention is further illustrated below in conjunction with accompanying drawing, it will be appreciated by those skilled in the art that following example only is for the ease of understanding and implements the present invention, and should be with on the concrete structure that scope of invention is limited to.
Comprise working cavity in the calibration cell of the present invention and the upper end cover 1 that matches with working cavity, has the isothermal liquid medium in the working cavity, and working cavity can be various forms of containers, top at working cavity cooperates with upper end cover, 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 has sealing function as common end cap commonly used 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 the role difference.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, 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 is derived and is inserted standard platinum resistance thermometer during the calibration criterion thermometer and use, 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 in the left side of soaking plate 2, be to be understood that the setting of sensor holder 6 is not limited to therewith, 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, 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 in such a manner, the maloperation that causes adjacent to one another between the sensor holder in can avoiding using or the generation of interference; Detect jack 7, in calibrating, pairing temperature sensor is inserted in the described 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, described 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 by sensor holder 5, perhaps insert standard platinum resistance thermometers by sensor holder 6 during the calibration criterion thermometer, provide the temperature of the thermometer that is arranged in the standard temperature thermometer well by the lead-in wire of deriving by sensor 6, it is as the standard temperature of calibration cell in the calibrating, as shown in the vertical view of Fig. 2, on soaking plate 2, has 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, 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, the effect of soaking plate 2 further is to promote to be positioned in the calibration cell with the temperature of the liquid of soaking plate sustained height even, make the surface level at soaking plate 2 places have uniform temperature field distribution, guarantee 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 the temperature difference of the liquid of close 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 by the specific embodiment and 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 those skilled in the art should understand that; specific embodiments of enumerating in this instructions or embodiment; only in order to understand technology contents of the present invention; in the case of without departing from the spirit and scope of the present invention; the present invention can carry out multiple change in the form and details; those skilled in the art can be according to concrete calibrating requirement; 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 within the claimed and scope of disclosure of the present invention.
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 described 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: described 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 described detection jack and the described 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 described 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 described 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: described 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 |
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| Publication Number | Publication Date |
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| CN102564648A CN102564648A (en) | 2012-07-11 |
| CN102564648B true 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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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104132686B (en) * | 2014-08-04 | 2017-04-19 | 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 (2)
| 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 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100964543B1 (en) * | 2008-10-31 | 2010-06-21 | 주식회사 하이소닉 | Cover for compact image photographing device and making methode of the same and compact image photographing device with the same |
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2012
- 2012-01-06 CN CN 201210002319 patent/CN102564648B/en not_active Expired - Fee Related
Patent Citations (2)
| 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 |
Non-Patent Citations (1)
| Title |
|---|
| JP特开2010-105912A 2010.05.13 |
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| CN102564648A (en) | 2012-07-11 |
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Granted publication date: 20130731 Termination date: 20140106 |