CN207908021U - A kind of Laboratory Module for flowmeter high temperature performance dynamic test - Google Patents
A kind of Laboratory Module for flowmeter high temperature performance dynamic test Download PDFInfo
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- 238000012360 testing method Methods 0.000 title claims abstract description 48
- 238000005057 refrigeration Methods 0.000 claims abstract description 26
- 238000010438 heat treatment Methods 0.000 claims abstract description 15
- 238000011084 recovery Methods 0.000 claims abstract description 12
- 238000001816 cooling Methods 0.000 claims description 5
- 229920005830 Polyurethane Foam Polymers 0.000 claims description 3
- 239000002131 composite material Substances 0.000 claims description 3
- 239000011810 insulating material Substances 0.000 claims description 3
- 239000011496 polyurethane foam Substances 0.000 claims description 3
- 239000012774 insulation material Substances 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 238000001514 detection method Methods 0.000 abstract description 7
- 108010066057 cabin-1 Proteins 0.000 description 20
- 238000007791 dehumidification Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
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- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical group N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 1
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Abstract
一种用于流量计高低温性能动态试验的实验舱。其特征在于:包括舱室、制冷装置、制热装置、送风管道、试验管道、被检测流量计、标准流量计、回温组件。其优点在于室外气体由风机通过送风管道送入舱室内,再由气泵通过实验管道排出舱室外,在此过程中,进入舱室的气体会先通过制冷装置或制热装置进行温度调节,温度变化后的气体则会先通过被检测流量计进行流量检测,然后经过回温组件进行温度回复,再通过标准流量计进行流量检测,最后通过被检测流量计与标准流量计的测量值计算得到被检测流量计在高低温的线性,完成流量计的高低温性能动态试验。
The utility model relates to an experimental chamber used for dynamic tests of high and low temperature performance of flowmeters. It is characterized in that it includes a cabin, a refrigeration device, a heating device, an air supply pipe, a test pipe, a tested flow meter, a standard flow meter, and a temperature return component. Its advantage is that the outdoor air is sent into the cabin by the fan through the air supply pipe, and then discharged out of the cabin by the air pump through the experimental pipeline. The final gas will first pass the flow detection of the detected flow meter, then go through the temperature recovery component for temperature recovery, and then carry out the flow detection through the standard flow meter, and finally calculate the detected flow meter and the standard flow meter through the measured value. The linearity of the flowmeter at high and low temperature, and the dynamic test of the high and low temperature performance of the flowmeter.
Description
技术领域technical field
本实用新型涉及一种流量计性能试验实验室,具体涉及一种用于流量计高低温性能动态试验的实验舱。The utility model relates to a flowmeter performance test laboratory, in particular to an experimental cabin for the dynamic test of the high and low temperature performance of the flowmeter.
背景技术Background technique
流量计通常工作温度在-25℃~+55℃,出厂检定工作温度在20℃左右,高低温性能检测一般在型式试验进行,而国内并无这种专业的流量计高低温动态实验室,因此建立一个可供流量计高低温性能检测的实验室成为企业技术研发的需求。The working temperature of the flowmeter is usually -25℃~+55℃, and the working temperature of the factory inspection is about 20℃. Establishing a laboratory for high and low temperature performance testing of flowmeters has become a demand for enterprise technology research and development.
实用新型内容Utility model content
为了克服背景技术的不足,本实用新型提供一种用于流量计高低温性能动态试验的实验舱,方便实现流量计的高低温性能动态试验。In order to overcome the deficiency of the background technology, the utility model provides an experimental cabin for the dynamic test of the high and low temperature performance of the flowmeter, which facilitates the dynamic test of the high and low temperature performance of the flowmeter.
本实用新型所采用的技术方案:一种用于流量计高低温性能动态试验的实验舱,包括舱室、制冷装置、制热装置、送风管道、试验管道、被检测流量计、标准流量计、回温组件;所述舱室为由隔热保温材料制成的密封空间,并带有可开启的舱门以及可观察舱内情况的观察窗;所述制冷装置设置在舱室内,用于空气制冷;所述制热装置设置在舱室内,用于空气制热;所述送风管道一端连接风机,另一端穿过舱室的舱壁,连通舱室;所述试验管道一端连接气泵,另一端穿过舱室的舱壁,连通舱室;所述被检测流量计设置在舱室内,并安装在试验管道上;所述标准流量计设置在舱室外,并安装在试验管道上;所述回温组件设置在舱室外,并安装在试验管道上,且所述回温组件位于所述被检测流量计与标准流量计之间。The technical solution adopted by the utility model: an experimental cabin for the dynamic test of the high and low temperature performance of the flowmeter, including a cabin, a refrigeration device, a heating device, an air supply pipeline, a test pipeline, a detected flowmeter, a standard flowmeter, The temperature recovery component; the cabin is a sealed space made of heat-insulating materials, and has an openable hatch and an observation window for observing the situation in the cabin; the refrigeration device is arranged in the cabin for air cooling The heating device is arranged in the cabin for air heating; one end of the air supply duct is connected to the fan, and the other end passes through the bulkhead of the cabin to communicate with the cabin; one end of the test pipeline is connected to the air pump, and the other end passes through The bulkhead of the cabin communicates with the cabin; the detected flowmeter is arranged in the cabin and installed on the test pipeline; the standard flowmeter is arranged outside the cabin and installed on the test pipeline; outside the cabin, and installed on the test pipeline, and the temperature recovery component is located between the tested flowmeter and the standard flowmeter.
所述舱室的隔热保温材料为硬质聚氨酯发泡复合板。The heat insulation material of the cabin is a rigid polyurethane foam composite board.
所述制冷装置采用二级制冷机组,其包括用于零度以上工况制冷的一级制冷高温机组和用于零度以下工况制冷的二级制冷低温机组。The refrigerating device adopts a two-stage refrigeration unit, which includes a first-stage refrigeration high-temperature unit for refrigeration above zero and a second-stage refrigeration low-temperature unit for below-zero refrigeration.
所述制热装置为电加热器。The heating device is an electric heater.
所述舱室内设有空气压力传感器。An air pressure sensor is arranged in the cabin.
所述试验管道包括多根直管,所述回温组件包括直管式水冷换热器以及气体常温换热装置,所述试验管道与被检测流量计、标准流量计、直管式水冷换热器、气体常温换热装置之间均通过法兰连接。The test pipeline includes a plurality of straight pipes, and the temperature return assembly includes a straight-tube water-cooled heat exchanger and a gas normal temperature heat exchange device. The device and the gas normal temperature heat exchange device are connected by flanges.
所述试验管道底部均匀设置若干用于其支撑固定的支撑架。A number of support frames are evenly arranged at the bottom of the test pipeline for its support and fixation.
所述舱室内设有照明灯,所述照明灯位于舱门的上方位置。A lighting lamp is arranged in the cabin, and the lighting lamp is located above the cabin door.
本实用新型的有益效果是:室外气体由风机通过送风管道送入舱室内,再由气泵通过实验管道排出舱室外,在此过程中,进入舱室的气体会先通过制冷装置或制热装置进行温度调节,温度变化后的气体则会先通过被检测流量计进行流量检测,然后经过回温组件进行温度回复,再通过标准流量计进行流量检测,最后通过被检测流量计与标准流量计的测量值计算得到被检测流量计在高低温的线性,完成流量计的高低温性能动态试验。The beneficial effects of the utility model are: the outdoor air is sent into the cabin by the fan through the air supply pipe, and then discharged out of the cabin by the air pump through the experimental pipeline. Temperature adjustment, the gas after the temperature change will first pass through the detected flowmeter for flow detection, then through the temperature recovery component for temperature recovery, then through the standard flowmeter for flow detection, and finally through the measurement of the detected flowmeter and the standard flowmeter The value is calculated to obtain the linearity of the detected flowmeter at high and low temperatures, and the high and low temperature performance dynamic test of the flowmeter is completed.
附图说明Description of drawings
图1为本实用新型实施例用于流量计高低温性能动态试验的实验舱的结构示意图。Fig. 1 is a structural schematic diagram of an experimental cabin used for dynamic testing of high and low temperature performance of a flowmeter according to an embodiment of the utility model.
图中1-舱室,2-制冷装置,3-制热装置,4-送风管道,5-试验管道,6-被检测流量计,7-标准流量计,8-直管式水冷换热器,9-气体常温换热装置,10-照明灯,11舱门。In the figure, 1-chamber, 2-refrigerating device, 3-heating device, 4-air supply pipe, 5-test pipe, 6-tested flowmeter, 7-standard flowmeter, 8-straight tube water-cooled heat exchanger , 9-gas normal temperature heat exchange device, 10-lighting lamp, 11 cabin door.
具体实施方式Detailed ways
下面结合附图对本实用新型实施例作进一步说明:Below in conjunction with accompanying drawing, the utility model embodiment is further described:
如图所示,一种用于流量计高低温性能动态试验的实验舱,包括舱室1、制冷装置2、制热装置3、送风管道4、试验管道5、被检测流量计6、标准流量计7、回温组件。As shown in the figure, an experimental cabin for dynamic testing of high and low temperature performance of flowmeters, including cabin 1, refrigeration device 2, heating device 3, air supply pipe 4, test pipe 5, tested flowmeter 6, standard flow 7. Return to temperature components.
所述舱室1为由隔热保温材料制成的密封空间,该隔热保温材料可以为厚度200mm硬质聚氨酯发泡复合板,其不仅具有较好的隔热保温效果,而且具有阻燃功能,大大提高安全性。The cabin 1 is a sealed space made of heat-insulating material, which can be a rigid polyurethane foam composite board with a thickness of 200mm, which not only has a good heat-insulating effect, but also has a flame-retardant function. Greatly improve security.
所述舱室1可以是3400*2500*2400mm的长方体空间,其设有一个可开启的舱门11,以及一个可观察舱内情况的观察窗,该舱室1结构简单,便于生产搭建,通过舱门11方便工作人员进入进行一些准备性工作,通过观察窗可方便观察舱室1内部的工作环境状态。The cabin 1 can be a cuboid space of 3400*2500*2400mm, which is provided with an openable hatch 11 and an observation window for observing the situation inside the cabin. The cabin 1 has a simple structure and is convenient for production and construction. 11. It is convenient for the staff to enter to carry out some preparatory work, and the working environment state inside the cabin 1 can be observed conveniently through the observation window.
进一步的,所述舱室1内设有照明灯10,所述照明灯10位于舱门11的上方位置,所述舱门11上也设置一个小型观察窗,更好的对舱室1内进行观察。Further, the cabin 1 is provided with an illuminating lamp 10, and the illuminating lamp 10 is located above the cabin door 11, and a small observation window is also provided on the cabin door 11 to better observe the cabin 1.
所述制冷装置2设置在舱室1内,用于空气制冷,由于低温除湿工作在零度以上工况时,换热器会产生结露,而在零度一下工况时,则会结霜,形成冰堵,影响制冷装置的制冷效率,因此,将制冷装置2采用二级制冷机组,包括一级制冷高温机组和二级制冷低温机组,分别用于零度以上工况和零度以下工况。The refrigerating device 2 is installed in the cabin 1 for air cooling. When the low-temperature dehumidification works above zero, the heat exchanger will condense, and when it is below zero, it will frost and form ice. Blockage affects the refrigeration efficiency of the refrigeration device. Therefore, the refrigeration device 2 adopts two-stage refrigeration units, including a primary refrigeration high-temperature unit and a secondary refrigeration low-temperature unit, which are respectively used for working conditions above zero and below zero.
其中,上述设备均可由现有设备直接使用,一级制冷高温机组可以采用爱默生数码涡旋压缩机,而二级制冷低温机组可以采用爱默生低温涡旋压缩机。Among them, the above-mentioned equipment can be directly used by the existing equipment, the first-stage refrigeration high-temperature unit can use Emerson digital scroll compressor, and the second-stage refrigeration low-temperature unit can use Emerson low-temperature scroll compressor.
所述制热装置3设置在舱室1内,用于空气制热,由于舱室1内温度范围变化大,还需要考虑到除湿要求,因此所述制热装置3采用电加热器对空气进行加热,能够大大提高控温的稳定性。The heating device 3 is arranged in the cabin 1 for air heating. Since the temperature range in the cabin 1 varies greatly, dehumidification requirements need to be considered, so the heating device 3 uses an electric heater to heat the air. Can greatly improve the stability of temperature control.
所述送风管道4一端连接风机,另一端穿过舱室1的舱壁,连通舱室1;所述试验管道5一端连接气泵,另一端穿过舱室1的舱壁,连通舱室1,所述被检测流量计6设置在舱室1内,并安装在试验管道5上;所述标准流量计7设置在舱室1外,并安装在试验管道5上;所述回温组件设置在舱室1外,并安装在试验管道5上,且所述回温组件位于所述被检测流量计6与标准流量计7之间。One end of the air supply duct 4 is connected to the fan, and the other end passes through the bulkhead of the cabin 1 to communicate with the cabin 1; one end of the test pipeline 5 is connected to the air pump, and the other end passes through the bulkhead of the cabin 1 to communicate with the cabin 1. The detection flowmeter 6 is arranged in the cabin 1 and installed on the test pipeline 5; the standard flowmeter 7 is arranged outside the cabin 1 and installed on the test pipeline 5; the temperature return assembly is arranged outside the cabin 1, and It is installed on the test pipeline 5 , and the temperature recovery component is located between the tested flowmeter 6 and the standard flowmeter 7 .
室外气体由风机通过送风管道4送入舱室内,再由气泵通过实验管道5排出舱室外,在此过程中,进入舱室的气体会先通过制冷装置2或制热装置3进行温度调节,温度变化后的气体则会先通过被检测流量计6进行流量检测,然后经过回温组件进行温度回复,再通过标准流量计7进行流量检测,最后通过被检测流量计6与标准流量计7的测量值计算得到被检测流量计在高低温的线性,完成被检测流量计的高低温性能动态试验。The outdoor air is sent into the cabin by the fan through the air supply pipe 4, and then discharged out of the cabin by the air pump through the experimental pipeline 5. During this process, the temperature of the gas entering the cabin will first be regulated by the refrigeration device 2 or the heating device 3. The changed gas will first pass through the detected flowmeter 6 for flow detection, then through the temperature recovery component for temperature recovery, then through the standard flowmeter 7 for flow detection, and finally through the measurement of the detected flowmeter 6 and the standard flowmeter 7 The value is calculated to obtain the linearity of the detected flowmeter at high and low temperature, and the dynamic test of the high and low temperature performance of the detected flowmeter is completed.
另外,所述舱室1内设有空气压力传感器,实时检测舱内压力值,从而对风机进行调节,控制送风量,保证舱室1内压力稳定。In addition, an air pressure sensor is installed in the cabin 1 to detect the pressure value in the cabin in real time, so as to adjust the fan, control the air supply volume, and ensure the stability of the pressure in the cabin 1 .
如图所示,所述试验管道5包括多根直管,所述回温组件包括直管式水冷换热器8以及气体常温换热装置9,所述试验管道5与被检测流量计6、标准流量计7、直管式水冷换热器8、气体常温换热装置9之间均通过法兰连接,安装连接非常方便。As shown in the figure, the test pipeline 5 includes a plurality of straight pipes, the temperature return assembly includes a straight tube water-cooled heat exchanger 8 and a gas normal temperature heat exchange device 9, and the test pipeline 5 is connected to the tested flowmeter 6, The standard flow meter 7, the straight tube water-cooled heat exchanger 8, and the gas normal temperature heat exchange device 9 are all connected by flanges, so the installation and connection are very convenient.
而且回温组件采用先后布置的直管式水冷换热器8与气体常温换热装置9,先降温,后升温,能够避免回温时产生过多冷凝水,保证试验准确性,同时直管式水冷换热器8与气体常温换热装置9均为主动换热,保证换热效果。Moreover, the temperature return component adopts the straight tube water-cooled heat exchanger 8 and the gas normal temperature heat exchange device 9 arranged successively. The temperature is lowered first and then heated up, which can avoid excessive condensed water during the temperature return and ensure the accuracy of the test. At the same time, the straight tube type The water-cooled heat exchanger 8 and the gas normal temperature heat exchange device 9 are both active heat exchange to ensure the heat exchange effect.
另外,所述试验管道5底部均匀设置若干用于其支撑固定的支撑架,由于试验管道5长度较长,重量较重,通过支撑架的结构进行支撑固定,不仅试验管道5安装更加稳定牢固,而且有效防止其对舱室1的舱壁结构进行损坏。In addition, the bottom of the test pipeline 5 is evenly provided with several support frames for its support and fixation. Since the test pipeline 5 is long in length and heavy in weight, it is supported and fixed by the structure of the support frame. Not only the test pipeline 5 is installed more stable and firm, Moreover, it is effectively prevented from damaging the bulkhead structure of the cabin 1 .
实施例不应视为对实用新型的限制,但任何基于本实用新型的精神所作的改进,都应在本实用新型的保护范围之内。The embodiment should not be regarded as limiting the utility model, but any improvement based on the spirit of the utility model should be within the protection scope of the utility model.
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
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CN113175978A (en) * | 2021-06-01 | 2021-07-27 | 新风智联(杭州)科技有限公司 | Gas flow sensor calibrating device |
CN117268504A (en) * | 2023-10-23 | 2023-12-22 | 宁波力擎超声科技有限公司 | Ultrasonic flowmeter correction instrument |
WO2024250545A1 (en) * | 2023-06-09 | 2024-12-12 | 丽水市天洋农业科技有限公司 | Multi-environment testing device for meter |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
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CN113175978A (en) * | 2021-06-01 | 2021-07-27 | 新风智联(杭州)科技有限公司 | Gas flow sensor calibrating device |
WO2024250545A1 (en) * | 2023-06-09 | 2024-12-12 | 丽水市天洋农业科技有限公司 | Multi-environment testing device for meter |
CN117268504A (en) * | 2023-10-23 | 2023-12-22 | 宁波力擎超声科技有限公司 | Ultrasonic flowmeter correction instrument |
CN117268504B (en) * | 2023-10-23 | 2024-03-19 | 宁波力擎超声科技有限公司 | Ultrasonic flowmeter correction instrument |
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