CN107024501A - Refrigerant insulating tube dimensional stability test equipment and its application method - Google Patents
Refrigerant insulating tube dimensional stability test equipment and its application method Download PDFInfo
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- CN107024501A CN107024501A CN201710350888.5A CN201710350888A CN107024501A CN 107024501 A CN107024501 A CN 107024501A CN 201710350888 A CN201710350888 A CN 201710350888A CN 107024501 A CN107024501 A CN 107024501A
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- G—PHYSICS
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N25/00—Investigating or analyzing materials by the use of thermal means
- G01N25/16—Investigating or analyzing materials by the use of thermal means by investigating thermal coefficient of expansion
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Abstract
The invention discloses a kind of refrigerant insulating tube dimensional stability test equipment, electric-heating container and high temperature resistant oil pump are provided with casing, provided with the copper pipe for circulating connection between electric-heating container and high temperature resistant oil pump, thermostable heat-conductive oil is marked with electric-heating container；The copper pipe side makes dismounting and replacing；And multi way temperature tester is set, multiple temperature probes of the tester are that contact temperature-measuring sensor is convenient to be arranged on the diverse location of the copper pipe with loading and unloading；Controller is additionally provided with, the controller carries out temperature signal with the multi way temperature tester and is connected, and switch control is carried out with the electrical heating switch of the electric-heating container and be connected；Power controling box is additionally provided with, the power controling box carries out safe power supply with the electric-heating container, multi way temperature tester, control device device and high temperature resistant oil pump and is connected.The present invention is applied to the test of insulating tube, and simple in construction to be applicable, easy to operate, test result is accurate.
Description
Technical field
It is a kind of that refrigerant insulating tube can be tested under the actual motion state of simulation the present invention relates to a kind of detection device
The equipment of dimensional stability and its method used.Insulating tube test on the various electric equipments such as air-conditioning, refrigerator.
Background technology
Heat preserving and insulating material and its product are the key factors for the energy-saving and environmental protection effect for influenceing building, household electrical appliances etc..Wherein,
Refrigerant insulating tube has a wide range of applications field, wherein being applied to the refrigeration piping sleeve pipe of air-conditioning, refrigerator etc. in large quantities.Therefore class
Part belongs to high polymer material foaming and formed, heated to easily cause deformation and melt, the fine or not direct relation of their capability and performance
To the effects of energy conservation and environmental protection and operation safety of electrical equipment.Need to test this base part for this.Most important of which is that
Carry out contact hot test.The currently known method of testing to refrigerant insulating tube dimensional stability is tested by high temperature
Case carries out high-temperature baking.Although this method of testing is simple, environment and the actual motion environment of test have too big difference,
Test result is difficult to accurately, it is impossible to obtain change in size data of these parts in actual working environment exactly.Therefore, need
Improve, simulate actual working environment, tested in the operation of actual working environment, it should be a kind of ideal
Test equipment and method of testing.
The content of the invention
The present invention in order to solve the above-mentioned technical problem, propose a kind of refrigerant insulating tube dimensional stability test equipment and its
Application method.The actual running environment of apparatus and method simulation insulating tube, insulating tube is placed on and actual motion identical
The test of change in size is carried out in environment.Reach that test result is accurate, test operation is convenient, safe and reliable effect.
To achieve these goals, the present invention takes following technical scheme：
A kind of refrigerant insulating tube dimensional stability test equipment, provided with casing, it is characterized in that：Add in casing provided with electricity
Heat container and high temperature resistant oil pump, the copper pipe provided with circulation connection between electric-heating container and high temperature resistant oil pump, electric-heating container
In be marked with thermostable heat-conductive oil, under the promotion of the high temperature resistant oil pump, thermostable heat-conductive oil is in the electric-heating container
Circulated with copper pipe；The copper pipe side makes dismounting and replacing；And set multi way temperature tester, multiple thermometrics of the tester
Probe is that contact temperature-measuring sensor is convenient to be arranged on the diverse location of the copper pipe with loading and unloading；Controller is additionally provided with, should
Controller carries out temperature signal with the multi way temperature tester and is connected, and switchs progress with the electrical heating of the electric-heating container
Switch control connection；Power controling box is additionally provided with, the power controling box and the electric-heating container, multi way temperature tester, control
Device processed and high temperature resistant oil pump carry out safe power supply connection.
The controller is also controlled with an alarm and is connected, when the temperature signal that multi way temperature tester is measured surpasses
Control alarm is alarmed when crossing the safety value of setting.
The application method of above-mentioned refrigerant insulating tube dimensional stability test equipment：
1st, for the insulating tube to be tested specification, internal diameter, the suitable copper pipe of selection are arranged on electric-heating container and resistance to
Between high temperature oil pump；
2nd, test sample 2-4 of tested insulating tube, the mark before being tested are taken：Length, cross-sectional diameter take 2-4
It is individual, test sample is measured and recorded with slide measure, 0.01mm is accurate to；
3rd, test sample is enclosed on copper pipe；
4th, the probe for installing multichannel temperature logger between test specimens device on copper pipe is that contact temperature-measuring sensor is several, is used
Aluminum foil and adhesive tape carries out contact fixation；
5th, set temperature controller control temperature be test needed for temperature, that is, in electric-heating container conduction oil heating temperature
Degree；
6th, the heating power supply of electric-heating container of performing fighting is heated, and opening controller and multi way temperature tester work as heat conduction
Oil temperature reaches after the temperature of setting that controller automatically turns on high temperature resistant oil pump, and test run starts；
7th, every 12 hour record one-time detections and record test sample the straight 2-4 point of length and cross section data；
8th, according to different test samples, testing results different time：24-72 hours；
9th, after the testing time arrives, power supply is closed, room temperature is naturally cooled to：15-25 DEG C；
10th, test sample is taken out from copper pipe, 2-4 point of length and cross-sectional diameter is measured, is accurate to
0.01mm。
11st, interpretation of result：
1) calculating of size changing rate：(M1-M2)/M1╳ 100%=run anteroposterior dimension rate of change
Wherein M1For data, M before operation2For data after operation, average；
2) calculating of size changing rate in running：(m2-m1)/m2╳ 100%=run intermediate sizes rate of change
Wherein m1For data, m before operation2For the data in operation every detection in 12 hours, average.
Advantages of the present invention：
1st, structure design is brief rationally perfect, and cost is low, identical with actual motion environment；
2nd, it is easy to operate, operation safety；
3rd, test result is accurate, stable；
4th, strong adaptability, goes for the test of a variety of insulating tube products；
5th, automatic controlling level is high.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention.
Embodiment
Below according to drawings and examples, the present invention will be described：
Embodiment：Referring to accompanying drawing, a kind of refrigerant insulating tube dimensional stability test equipment, according to refrigerant insulating tube with
It is that the copper material of refrigeration piping is wrapped up by refrigerant insulating tube when the refrigeration piping sleeve pipe such as air-conditioning, refrigerator, it is cold in order to simulate
Matchmaker's insulating tube under actual working state running environment and design the equipment, air-conditioning, refrigerator can operationally be entered using freon
Row circulation, this embodiment is circulated using conduction oil, simulation air-conditioning, the working condition of refrigerator.This equipment is by casing, controller 7, many
Road temperature measuring device 6, electric-heating container 5, high temperature resistant oil pump 1 are constituted.Controller uses computer：For testing multi way temperature
Instrument is driven, and is attached using data wire with multi way temperature tester, records the monitoring data of multi way temperature tester.It is many
Road temperature measuring device：It is acquired for the temperature to detection zone different parts, uses contact temperature-measuring sensor 3 and experiment
Region is connected.Electric-heating container 5 is made up of stainless steel bucket with electric heating coil, for being heated and being stored to conduction oil.Resistance to height
Warm oil pump is used to circulate conduction oil.Equipment package size：The Chang ╳ Kuan ╳ of 1000mm*500mm*1500 (are high)；By resistance to height
Warm oil pump is attached with electric-heating container bottom, then oil resistant is pumped out into top of the hydraulic fluid port using copper pipe 4 and electric-heating container
Portion is attached, and refrigerant insulating tube 2 is enclosed on copper pipe by copper pipe coupling part as the test zone of equipment, copper pipe external diameter with
Refrigerant insulation bore should be consistent with the drawing of institute test product.Electrical heating is held by temperature needed for temperature control system setting experiment
Conduction oil in device is heated, and is started high temperature resistant oil pump and is circulated conduction oil.By the contact of multi way temperature tester
The diverse location of temperature transducer and pilot region is attached grasp actual work temperature.Using computer to temperature and equipment
Operation is continuously monitored.The controller is also controlled with an alarm and is connected, and is measured when multi way temperature tester
Control alarm is alarmed when temperature signal exceedes the safety value of setting.
The application method of above-mentioned test equipment, step is as follows：
1st, for the insulating tube to be tested specification, internal diameter, the suitable copper pipe of selection are arranged on electric-heating container and resistance to
Between high temperature oil pump；
2nd, the test sample 4 of tested insulating tube, the mark before being tested are taken：Length, cross-sectional diameter take 4 points,
Test sample is measured and recorded with slide measure, 0.01mm is accurate to；
3rd, test sample is enclosed on copper pipe；
4th, the probe for installing multichannel temperature logger between test specimens device on copper pipe is that contact temperature-measuring sensor is several, is used
Aluminum foil and adhesive tape carries out contact fixation；
5th, set temperature controller control temperature be test needed for temperature, that is, in electric-heating container conduction oil heating temperature
Degree；
6th, the heating power supply of electric-heating container of performing fighting is heated, and opening controller and multi way temperature tester work as heat conduction
Oil temperature reaches after the temperature of setting that controller automatically turns on high temperature resistant oil pump, and test run starts；
7th, every 12 hour record one-time detections and record test sample straight 4 points of length and cross section data；
8th, according to different test samples, testing results different time：24-72 hours；The present embodiment is tested 48 hours；
9th, after the testing time arrives, power supply is closed, room temperature is naturally cooled to：20℃；
10th, test sample is taken out from copper pipe, 4 points of length and cross-sectional diameter is measured, are accurate to
0.01mm。
11st, interpretation of result：
1) calculating of size changing rate：(M1-M2)/M1╳ 100%=run anteroposterior dimension rate of change
Wherein M1For data, M before operation2For data after operation, average；
2) calculating of size changing rate in running：(m2-m1)/m2╳ 100%=run intermediate sizes rate of change
Wherein m1For data, m before operation2For the data in operation every detection in 12 hours, average.
The test result of the present embodiment is：
1) anterior-posterior length size changing rate is run：
(M1-M2)/M1╳ 100%=(30cm-29.8cm)/30cm ╳ 100%=0.6%
Cross-sectional diameter size changing rate before and after operation：
(M1-M2)/M1╳ 100%=(8cm-7.95cm)/8cm ╳ 100%=0.6%%
2) intermediate length size changing rate is run：
(m2-m1)/m2╳ 100%=(30.4cm-30cm)/30cm ╳ 100%=1.3%
Run intermediate cross-section diameter dimension rate of change：
(m2-m1)/m2╳ 100%=(8.1cm-8cm)/8cm ╳ 100%=0.12%
It should be pointed out that for those skilled in the art, before its general principles are not departed from
Put, some changes can also be made, these changes also should be regarded as the protection domain of this patent.
Claims (3)
1. a kind of refrigerant insulating tube dimensional stability test equipment, provided with casing, it is characterized in that：Electrical heating is provided with casing
Container (5) and high temperature resistant oil pump (1), the copper pipe (4) provided with circulation connection between electric-heating container and high temperature resistant oil pump, electricity add
Thermostable heat-conductive oil is marked with heat container, under the promotion of the high temperature resistant oil pump, the thermostable heat-conductive oil adds in the electricity
Circulated in heat container and copper pipe；The copper pipe side makes dismounting and replacing；And set multi way temperature tester (6), the tester
Multiple temperature probes be the convenient handling of contact temperature-measuring sensor (3) be arranged on the diverse location of the copper pipe；In addition
Provided with controller (7), the controller and the multi way temperature tester carry out temperature signal and are connected, and with the electric-heating container
Electrical heating switch carry out switch control connection；Power controling box is additionally provided with, it is the power controling box and the electric-heating container, many
Road temperature measuring device, controller and high temperature resistant oil pump carry out safe power supply connection.
2. test equipment according to claim 1, it is characterised in that：The controller is also controlled with an alarm
Connection, when the temperature signal that multi way temperature tester is measured exceedes the safety value of setting, control alarm is alarmed.
3. the application method of refrigerant insulating tube dimensional stability test equipment according to claim 1 or 2：It is characterized in that
Have steps of：
1) specification for the insulating tube to be tested, internal diameter, the suitable copper pipe of selection are arranged on electric-heating container and high temperature resistant
Between oil pump；
2) test sample 2-4 of tested insulating tube, the mark before being tested are taken：Length, cross-sectional diameter take 2-4
Point, is measured and is recorded with slide measure to test sample, be accurate to 0.01mm；
3) test sample is enclosed on copper pipe；
4) probe for installing multichannel temperature logger between test specimens device on copper pipe is that contact temperature-measuring sensor is several, uses aluminium foil
Adhesive tape carries out contact fixation；
5) the control temperature for setting controller is the required temperature of test, is also the heating-up temperature of conduction oil in electric-heating container；
6) heating power supply of electric-heating container of performing fighting is heated, opening controller and multi way temperature tester, when heat conduction oil temperature
Degree reaches after the temperature of setting that controller automatically turns on high temperature resistant oil pump, and test run starts；
7) carry out one-time detection every 12 hours and record the data of the 2-4 point of length and cross-sectional diameter of test sample；
8) according to different test samples, testing results different time：24-72 hours；
9) after the testing time arrives, power supply is closed, room temperature is naturally cooled to：15-25 DEG C；
10) test sample is taken out from copper pipe, 2-4 point of length and cross-sectional diameter is measured, is accurate to
0.01mm。
11) interpretation of result：
(1) calculating of size changing rate：(M1-M2)/M1╳ 100%=run anteroposterior dimension rate of change
Wherein M1For data, M before operation2For data after operation, average；
(2) calculating of size changing rate in running：(m2-m1)/m2╳ 100%=run intermediate sizes rate of change
Wherein m1For data, m before operation2For the data in operation every detection in 12 hours, average.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710350888.5A CN107024501B (en) | 2017-05-17 | 2017-05-17 | Refrigerant heat-insulating pipe dimensional stability performance test equipment and application method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710350888.5A CN107024501B (en) | 2017-05-17 | 2017-05-17 | Refrigerant heat-insulating pipe dimensional stability performance test equipment and application method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN107024501A true CN107024501A (en) | 2017-08-08 |
| CN107024501B CN107024501B (en) | 2023-07-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710350888.5A Active CN107024501B (en) | 2017-05-17 | 2017-05-17 | Refrigerant heat-insulating pipe dimensional stability performance test equipment and application method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114776896A (en) * | 2022-04-20 | 2022-07-22 | 河北元丰管道工程有限公司 | Polyurethane thermal insulation pipe adopting pipe-in-pipe method and spraying method and testing method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202393722U (en) * | 2011-12-15 | 2012-08-22 | 北京建筑工程学院 | Device for measuring thermal conductivity factor of low-vacuum degree vacuum composite insulating pipeline |
| CN206772872U (en) * | 2017-05-17 | 2017-12-19 | 绵阳高新区三阳塑胶有限责任公司 | Refrigerant insulating tube dimensional stability test equipment |
-
2017
- 2017-05-17 CN CN201710350888.5A patent/CN107024501B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202393722U (en) * | 2011-12-15 | 2012-08-22 | 北京建筑工程学院 | Device for measuring thermal conductivity factor of low-vacuum degree vacuum composite insulating pipeline |
| CN206772872U (en) * | 2017-05-17 | 2017-12-19 | 绵阳高新区三阳塑胶有限责任公司 | Refrigerant insulating tube dimensional stability test equipment |
Non-Patent Citations (1)
| Title |
|---|
| 吴一鸣;: "冻土路基用聚氨酯保温材料的研制与性能测试" * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114776896A (en) * | 2022-04-20 | 2022-07-22 | 河北元丰管道工程有限公司 | Polyurethane thermal insulation pipe adopting pipe-in-pipe method and spraying method and testing method thereof |
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| Publication number | Publication date |
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| CN107024501B (en) | 2023-07-04 |
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Effective date of registration: 20190703 Address after: No. 118, Middle Section of Kefa Avenue, Mianyang High-tech Zone, Sichuan Province, 621000 Applicant after: Mianyang Sanyang Zhicheng Technology Co.,Ltd. Applicant after: BEIJNG SMARTMI ELECTRONIC TECHNOLOGY CO.,LTD. Address before: 621000 West Section 2 of Puming North Road, Mianyang High-tech Zone, Mianyang City, Sichuan Province Applicant before: MIANYANG HIGH-TECH ZONE SANYANG PLASTICS CO.,LTD. Applicant before: BEIJNG SMARTMI ELECTRONIC TECHNOLOGY CO.,LTD. |
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