CN101995358A - Pipe temperature change test unit - Google Patents
Pipe temperature change test unit Download PDFInfo
- Publication number
- CN101995358A CN101995358A CN2010105037663A CN201010503766A CN101995358A CN 101995358 A CN101995358 A CN 101995358A CN 2010105037663 A CN2010105037663 A CN 2010105037663A CN 201010503766 A CN201010503766 A CN 201010503766A CN 101995358 A CN101995358 A CN 101995358A
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- China
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- solenoid valve
- electromagnetic valve
- water pump
- valve
- thermal sensor
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- Examining Or Testing Airtightness (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
A pipe temperature change test unit comprises a solenoid valve I, a solenoid valve III, a water pump, a pressure valve and a thermal sensor. An output end and an input end of a water heater are respectively connected with the solenoid valve I and the solenoid valve III, wherein the other end of the solenoid valve I is provided with the water pump; the water pump is respectively connected with a solenoid valve II and the pressure valve; an output end of the pressure valve is provided with the thermal sensor; and a solenoid valve IV connected with a cold water outlet is arranged outside the solenoid valve III. The invention has the advantages that: the pipe temperature change test unit is convenient to operate, and contributes to improvement on product pass percent and test effect; in the test, cyclic change is carried out for 5,000 times under the pressure of (0.1+/-0.01)MPa and at the temperature of (20+/-5) DEG C and (93+/-5) DEG C, the time for each cycle is (30+/-2)min, and both cold water and hot water are kept for 15 minutes. When the outer diameter of a carbon steel pipe is more than 54mm, cyclic change is carried out for 2,500 times and the time for each cycle is (60+/-2) minutes so that the connecting part avoids leakage.
Description
Technical field
The present invention relates to be used for the performance test apparatus of pipe fitting, relate in particular to a kind of tubing change of temperature test device.
Background technology
Pipe fitting can be divided into socket fitting, threaded fitting, flanged fitting and weld-end fittings four classes, and elbow is used for the position that pipe is hugged turning, and flange then is used to make pipe and the interconnective part of pipe.Existing stainless steel clamp-press type pipe, stainless steel lathe dog joint and the connection thin-wall stainless steel of being used for, after production and processing is finished, need carry out certain temperature test device and guarantee that this pipe fitting has good temperature performance and high-caliber product quality, if adopt existing simple and crude detection means, then can't guarantee validity.
Summary of the invention
At above defective, the purpose of this invention is to provide a kind of qualification rate that helps improving product, improve test effect, easy to operate tubing change of temperature test device, to solve many deficiencies of prior art.
For achieving the above object, the present invention is achieved through the following technical solutions:
A kind of tubing change of temperature test device, comprise electromagnetic valve I, electromagnetic valve II I, water pump, pressure valve, thermal sensor, the output terminal of described water heater is connected electromagnetic valve I and electromagnetic valve II I respectively with input end, the electromagnetic valve I other end wherein is provided with water pump, this water pump is connected with electromagnetic valve II and pressure valve respectively, the output terminal of described pressure valve is provided with thermal sensor, this thermal sensor one side is connected tubing to be detected, the tubing outside is provided with the unsteady bearing of fixed support, and described electromagnetic valve II I outside is provided with the electromagnetic valve I V that is connected with cooling water outlet.
The beneficial effect of tubing change of temperature test device of the present invention is: the humid test of carrying out pipe fitting by the combination that water pump, water heater, solenoid valve, pressure valve, thermal sensor are set, easy to operate, help improving the qualification rate of product, improve test effect; Can with test when (20 ± 5) ℃ and (93 ± 2) ℃ with (0.1 ± 0.01) MPa in pressure carry out circulation change 5000 times, a circulation is (30 ± 2) min, hot and cold water respectively keeps 15min, when carbon steel tube outer diameter during greater than 54mm, carry out circulation change 2500 times, a circulation is (60 ± 2) min, and the result can make connecting portion ne-leakage phenomenon.
Description of drawings
According to embodiment and accompanying drawing the present invention is described in further detail below.
Fig. 1 is the structural representation of the described tubing change of temperature test of embodiment of the invention device.
Among the figure:
1, electromagnetic valve I; 2, electromagnetic valve II; 3, electromagnetic valve II I; 4, electromagnetic valve I V; 5, water heater; 6, water pump; 7, pressure valve; 8, thermal sensor; 9, pipe fitting joint; 10, tubing; 11, the unsteady bearing of fixed support.
Embodiment
As shown in Figure 1, tubing change of temperature test device of the present invention, comprise electromagnetic valve I 1, electromagnetic valve II I3, water pump 6, pressure valve 7, thermal sensor 8, the output terminal of described water heater 5 is connected electromagnetic valve I 1 and electromagnetic valve II I3 respectively with input end, electromagnetic valve I 1 other end wherein is provided with water pump 6, this water pump 6 is connected with electromagnetic valve II 2 and pressure valve 7 respectively, and electromagnetic valve II 2 is connected with the cooling water inlet end; The output terminal of described pressure valve 7 is provided with thermal sensor 8, these thermal sensor 8 one sides are connected tubing 10 to be detected, be connected with pipe fitting joint 9 between each section tubing 10, tubing 10 outsides are provided with the unsteady bearing 11 of fixed support, and described electromagnetic valve II I3 outside is provided with the electromagnetic valve I V4 that is connected with cooling water outlet.During detection, can open water pump 6, electromagnetic valve I 1 is opened with electromagnetic valve II I3, electromagnetic valve II 2 is closed with electromagnetic valve I V4, carry out hot water circulation, otherwise carry out the cold water circulation after crossing certain hour, can with test when (20 ± 5) ℃ and (93 ± 2) ℃ with (0.1 ± 0.01) MPa in pressure carry out circulation change 5000 times, a circulation is (30 ± 2) min, hot and cold water respectively keeps 15min, when carbon steel tube outer diameter during greater than 54mm, carries out circulation change 2500 times, a circulation is (60 ± 2) min, and the result can make connecting portion ne-leakage phenomenon.
Claims (1)
1. tubing change of temperature test device, comprise electromagnetic valve I (1), electromagnetic valve II I (3), water pump (6), pressure valve (7), thermal sensor (8), it is characterized in that: the output terminal of described water heater (5) is connected electromagnetic valve I (1) and electromagnetic valve II I (3) respectively with input end, electromagnetic valve I wherein (1) other end is provided with water pump (6), this water pump (6) is connected with electromagnetic valve II (2) and pressure valve (7) respectively, the output terminal of described pressure valve (7) is provided with thermal sensor (8), these thermal sensor (8) one sides are connected tubing to be detected (10), tubing (10) outside is provided with the unsteady bearing (11) of fixed support, and described electromagnetic valve II I (3) outside is provided with the electromagnetic valve I V (4) that is connected with cooling water outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105037663A CN101995358A (en) | 2010-09-30 | 2010-09-30 | Pipe temperature change test unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105037663A CN101995358A (en) | 2010-09-30 | 2010-09-30 | Pipe temperature change test unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101995358A true CN101995358A (en) | 2011-03-30 |
Family
ID=43785813
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105037663A Pending CN101995358A (en) | 2010-09-30 | 2010-09-30 | Pipe temperature change test unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101995358A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103016453A (en) * | 2012-12-14 | 2013-04-03 | 浙江大学 | Impulse test system of hydraulic hose |
| CN103776700A (en) * | 2014-02-17 | 2014-05-07 | 哈尔滨三迪工控工程有限公司 | Constant flow pressure impact testing machine |
| CN108195708A (en) * | 2018-02-23 | 2018-06-22 | 江苏省产品质量监督检验研究院 | A kind of sample cabinet for cold and hot water cycle test |
-
2010
- 2010-09-30 CN CN2010105037663A patent/CN101995358A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103016453A (en) * | 2012-12-14 | 2013-04-03 | 浙江大学 | Impulse test system of hydraulic hose |
| CN103776700A (en) * | 2014-02-17 | 2014-05-07 | 哈尔滨三迪工控工程有限公司 | Constant flow pressure impact testing machine |
| CN108195708A (en) * | 2018-02-23 | 2018-06-22 | 江苏省产品质量监督检验研究院 | A kind of sample cabinet for cold and hot water cycle test |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110330 |