CN107340104A - Finned heat exchanger high pressure leak test plant - Google Patents
Finned heat exchanger high pressure leak test plant Download PDFInfo
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- CN107340104A CN107340104A CN201710506325.0A CN201710506325A CN107340104A CN 107340104 A CN107340104 A CN 107340104A CN 201710506325 A CN201710506325 A CN 201710506325A CN 107340104 A CN107340104 A CN 107340104A
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- pressure
- heat exchanger
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- high pressure
- tank
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
- G01M3/32—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for containers, e.g. radiators
- G01M3/3236—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for containers, e.g. radiators by monitoring the interior space of the containers
- G01M3/3272—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for containers, e.g. radiators by monitoring the interior space of the containers for verifying the internal pressure of closed containers
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
The present invention relates to technical field of heat exchange equipment, propose finned heat exchanger high pressure leak test plant, air inlet, exhaust outlet, pressure tap and at least one test mouth are provided with more parts, supercharger is connected with supply main line, the air outlet slit of supercharger is connected through check valve with high pressure tank, high pressure tank is connected with the air inlet pipeline of more parts, and the first electro connecting pressure gauge, pressure reducer and the first magnetic valve are disposed with the connecting line；The test mouth of more parts is connected by high-pressure rubber pipe and action pressure-testing joint with heat exchanger, and heat exchanger is placed in tank；The pressure tap of more parts sets the second electro connecting pressure gauge, the exhaust outlet of more parts is connected with supply main line, and second solenoid valve is provided with the connecting line, ECU electrically connects with supercharger, the first electro connecting pressure gauge, the second electro connecting pressure gauge, the first magnetic valve, second solenoid valve respectively.The accurate leak detection of the achievable heat exchanger of the present invention, and have the advantages that simple to operate, safety coefficient is high.
Description
Technical field
The present invention relates to technical field of heat exchange equipment, and in particular to a kind of heat exchanger leak test plant.
Background technology
The key index of the quality quality of sealing heat exchanger, needs to carry out leak detection test to it when heat exchanger dispatches from the factory, with
Ensure that its sealing is good.Existing frequently-used leak detection mode is examined for water, i.e., is put after compressed air or nitrogen are filled with heat exchanger
Enter in water, check whether to reveal.Applied to the heat exchanger under different operating modes, its operating pressure is different, it is therefore desirable to different pressures
Pressure-air is tested to complete leak detection, especially for the heat exchanger that operating pressure is larger（Such as the work of co 2 heat exchanger
Pressure is 8MPA）Corresponding pressure-air and supporting joint and pressure testing rifle are also required to carry out leak detection test, existing leak detection
Equipment can not meet Hi-pot test requirement.Meanwhile in the inspection of existing water, it usually needs eye-observation judges whether to let out
Leakage, detection accuracy are difficult to ensure that；Gases at high pressure after detection lack recovery link, the problem of gas waste be present.
The content of the invention
To solve problems of the prior art, the present invention proposes a kind of high pressure leak test plant, can meet different works
Make the leak detection of the heat exchanger, especially high pressure heat exchanger of pressure, and with accuracy of detection is high, safety coefficient is high and avoids gas unrestrained
The advantages that taking.
To achieve the above object, the technical solution adopted by the present invention is：It is proposed that a kind of finned heat exchanger high pressure leak detection is set
It is standby, including supercharger, high pressure tank, pressure reducer, more parts, tank and ECU, it is provided with one in more parts
Air inlet, an exhaust outlet, a pressure tap and at least one test mouth, supercharger are connected by pipeline with supply main line,
The air outlet slit of supercharger is connected through check valve with high pressure tank by pipeline, and high pressure tank and the air inlet of more parts lead to
Pipeline connection is crossed, and the first electro connecting pressure gauge, pressure reducer and the first magnetic valve are disposed with the connecting line；More parts
Test mouth be connected by high-pressure rubber pipe and action pressure-testing joint with heat exchanger, heat exchanger is placed in the tank；The survey of more parts
Pressure mouth is provided with the second electro connecting pressure gauge, and the exhaust outlet of more parts is connected by pipeline with supply main line, and the connecting tube
Be provided with second solenoid valve on road, the ECU respectively with supercharger, the first electro connecting pressure gauge, the second electric contact pressure
Table, the first magnetic valve, second solenoid valve electrical connection.
The exhaust outlet of more parts is provided with the 3rd magnetic valve, and the Single port of the 3rd magnetic valve connects the exhaust of more parts
Mouthful, another port connection muffler, the 3rd magnetic valve electrically connects with ECU.
Hand sluice valve is provided with high-pressure rubber pipe between more parts test mouths and heat exchanger.
More parts are seven parts, and an air inlet, an exhaust outlet, a pressure tap and four are provided with seven parts
Individual test mouth.
Covered with safety net at the tank upper opening.
The tank is fixed on trough rack, on trough rack solid welding have instrument desk and electric appliance box, the ECU is located at
In electric appliance box, first electro connecting pressure gauge, the second electro connecting pressure gauge and pressure reducer are arranged on instrument desk, on instrument desk
It is provided with indicator lamp.
Movement is provided with outside the electric appliance box and controls platform, mobile console electrically connects with ECU.
Beneficial effects of the present invention are embodied in：
（1）The gas of supply supervisor is pressurized and stored into high pressure tank using supercharger, according to various heat exchange device
Leak detection requirement gas pressure dropped to by required pressure by pressure reducer, therefore, the equipment disclosure satisfy that the inspection of various heat exchange device
Leakage demand；
（2）Gas withdrawal line is provided with the leak test plant of the present invention, gas can return to workshop by pipeline after leak detection test
Central gas supply is responsible for, and solves the phenomenon of gas waste；
（3）Multiple heat exchangers are realized using more parts while are tested, and on each pipeline between heat exchanger and its air supply opening
Hand sluice valve is respectively provided with, can flexibly open according to demand or stop each TCH test channel；
（4）The relevant position of each pipeline is provided with electric control element in the equipment of the present invention, passes through being examined to whole for ECU
Leakage current journey is automatically controlled, and the pressured difference of the equipment determines whether to reveal, and prompts to be tested automatically by indicator lamp and alarm
Heat exchanger substantially increases the accuracy and convenience of detection with the presence or absence of leaking；
（5）The equipment safety coefficient of the present invention is high, connects heat exchanger to be measured by high-pressure rubber pipe, and peace is covered on testing flume
The whole network, avoid pressure testing（Quickly）Joint is dangerous caused by collapsing.
Brief description of the drawings
Fig. 1 is the connection diagram of each part of the present invention；
Fig. 2 is the stereogram one of the present invention；
Fig. 3 is the stereogram two of the present invention；
In figure：1- superchargers, 2- check valves, 3- high pressure tanks, the electro connecting pressure gauges of 4- first, 5- pressure reducers, the electricity of 6- first
Magnet valve, the parts of 7- seven, the electro connecting pressure gauges of 8- second, the magnetic valves of 9- the 3rd, 10- mufflers, 11- second solenoid valves, 12-
Hand sluice valve, 13- high-pressure rubber pipes, 14- action pressure-testing joints, 15- heat exchangers, 16- tanks, 17- red lights, 18- amber lights, 19- green lights,
20- inflates button, 21- SRs, 22- stop buttons, 23- scram buttons, A1- trough racks, A2- instrument desks, A3- movement controls
Put platform, A4- electric appliance boxes, the combination of A5- indicator lamps, A6- safety nets, A7- effect nameplates.
Embodiment
The present invention is described in detail below in conjunction with the accompanying drawings.
Embodiment 1：
Finned heat exchanger high pressure leak test plant as shown in Figure 1, 2, 3, including supercharger 1, high pressure tank 3, pressure reducer 5,
Seven parts 7, tank 16 and ECU, an air inlet, an exhaust outlet, a pressure tap and four are provided with seven parts 7
Individual test mouth, supercharger 1 are connected by pipeline with supply main line, and the air outlet slit of supercharger 1 is through check valve 2 and high-pressure gas
Tank 3 is connected by pipeline, and high pressure tank 3 is connected with the air inlet of seven parts 7 by pipeline, and is set successively on the connecting line
It is equipped with the first electro connecting pressure gauge 4, the magnetic valve 6 of pressure reducer 5 and first；The test mouth of seven parts 7 passes through high-pressure rubber pipe 13 and examination
Crimp head 14 is connected with the Single port of heat exchanger 15, and the another port closing of heat exchanger, heat exchanger 15 is placed in tank 16；Seven
The pressure tap of parts 7 is provided with the second electro connecting pressure gauge 8, and the exhaust outlet of seven parts is connected by pipeline with supply main line,
And second solenoid valve 11 is provided with the connecting line, the exhaust outlet of seven parts 7 is additionally provided with the 3rd magnetic valve 9, the 3rd electromagnetism
The Single port of valve 9 connects the exhaust outlet of seven parts, another port connection muffler 10.ECU respectively with supercharger 1,
First electro connecting pressure gauge 4, the second electro connecting pressure gauge 8, the first magnetic valve 4, second solenoid valve 11, the 3rd magnetic valve 9 are electrically connected
Connect.A hand sluice valve 12 is each provided with high-pressure rubber pipe between four test mouths of seven parts 7 and four heat exchangers to be measured.
Tank 16 is fixed on trough rack A1, covered with safety net A16 at the upper opening of tank 16.Solid welding on trough rack A1
There is instrument desk A2 and electric appliance box A4, ECU uses PLC, and it is arranged in electric appliance box A4, the first electric contact pressure
Table 4, the second electro connecting pressure gauge 8 and pressure reducer 5 are arranged on instrument desk, and indicator lamp combination A5, instruction are provided with instrument desk
Lamp combination includes red light 17, amber light 18 and green light 19.The outside of electric appliance box is provided with movement and controls platform A3, mobile console and electricity
Unit electrical connection is controlled, mobile control is provided with inflation button 20, SR 21, stop button 22 and scram button on platform A3
23。
Use the present invention as follows for the specific work process that 8Mpa co 2 heat exchanger is hunted leak to operating pressure：
（1）Supercharger 1 sucks the low-pressure air from supply air line（0.8Mpa）, it is pressurized by three-level, 12MPa gas is passed through
Check valve 2 is crossed to be stored in high pressure tank 3；
（2）12Mpa gases are become by 8MPa gases by pressure reducer 5；
（3）Pressure testing（Quickly）Joint is inserted on the inlet/outlet pipe of heat exchanger,（First magnetic valve 6, the electricity of second solenoid valve the 11, the 3rd
Magnet valve 9 is normally off, and hand sluice valve 12 is normally open, if which root is without using being shut off）, heat exchanger is put into tank 16
Middle preparation pressure testing；
（4）The inflation button 20 on mobile console is pressed, the first magnetic valve 6 is automatically opened up, inflated into heat exchanger, when second
When the upper change point of electro connecting pressure gauge 8 reaches 8MPa, the first magnetic valve 6 is closed automatically, stops inflation, and green light dodges in gas replenishment process
It is bright；
（5）Heat exchanger is connected to high-pressure rubber pipe 13 and carries out pressure experiment in the sink, it is desirable to is filled with 8MPa gases and is placed in water and protects
Pressure can not be revealed for 5 minutes, the Chang Liang of green light 19 during 8MPa pressurizes；
（6）Product Qualification：In PLC timing 5 minutes, the table of the second electric contact pressure 8 does not fall pressure, illustrates product not
Leakage；After timing terminates, second solenoid valve 11 is automatically opened up, and heat exchanger mesohigh gas is sent into workshop central gas supply master
Pipeline（Low pressure pipeline）, realize that gas reclaims.When the table of the second electric contact pressure 11 is down to low pressure main conduit's pressure（0.8MPa）,
Second solenoid valve 11 is closed automatically, while the 3rd magnetic valve 9 automatically opens up, more than in the discharge product of muffler 10
Gas；
（7）The unqualified situation of product：When showing that 8MPa pressurizes are abnormal such as the table of the second electric contact pressure 8（Second electric contact pressure
When table 8 was down to 7MPa in 1 minute）Illustrate there is gas leak phenomenon, now red light 17 flashes and alarmed, and prompts operator's pressure testing different
Often.Operator can press stop button 22, and now second solenoid valve 11 automatically opens up, and heat exchanger mesohigh gas is sent into workshop collection
Middle supply main pipeline, realize that gas reclaims.When the second electro connecting pressure gauge 8 is down to low pressure pipeline pressure（0.8MPa）When, second
Magnetic valve 11 is closed automatically, while the 3rd magnetic valve 9 automatically opens up, and discharges the residual air in product by muffler 10, so
Gas leakage product is taken out afterwards；
（8）After pressure testing detects, heat exchanger is taken out from tank, unloads pressure testing（Quickly）Joint.Complete whole process；
（9）In operation when the first electro connecting pressure gauge 4（High-pressure gas pressure tank）During less than 9MPa, indicator lamp amber light dodges
It is bright, insufficient pressure is prompted, supercharger 1 starts to be inflated into high pressure tank 3；When the first electro connecting pressure gauge 4（High pressure tank
Pressure）When reaching 12MPa, indicator lamp green light, prompt high pressure tank 3 full, supercharger 1 stops.
The present invention is used to hunt leak operating pressure for 8Mpa co 2 heat exchanger, the technology of equipment key part
Parameter is as follows：
Supercharger：It is pressurized using three-level, is arranged on 12Mpa；
Pressure reducer：Using the double gauge outfits of high pressure（U.S.'s victory is sharp）, it is arranged to be depressurized to 8Mpa by 12MPa；
Customize high-pressure solenoid valve, pressure-resistant 12MPa, voltage selection 24V；
Seven parts：Can pressure-resistant more than 12MPa, size makes according to actual conditions；
Electro connecting pressure gauge：Pressure gage measuring range selects 16Mpa；
Hand sluice valve：Pressure-resistant 12MPa, its latus rectum select according to actual conditions；
High-pressure rubber pipe：Pressure-resistant 12Mpa, length make according to actual conditions；
Pressure testing（Quickly）Joint：Pressure-resistant more than 8MPa.
The accurate leak detection of heat-exchanger products can be realized using the leak test plant of the present invention, and with simple to operate, safety system
The advantages that number is high.
Claims (7)
1. finned heat exchanger high pressure leak test plant, it is characterised in that：Including supercharger, high pressure tank, pressure reducer, more logical
Part, tank and ECU, an air inlet, an exhaust outlet, a pressure tap and at least one are provided with more parts
Individual test mouth, supercharger are connected by pipeline with supply main line, and the air outlet slit of supercharger is through check valve and high pressure tank
Connected by pipeline, high pressure tank is connected with the air inlet of more parts by pipeline, and is disposed with the connecting line
First electro connecting pressure gauge, pressure reducer and the first magnetic valve；The test mouth of more parts is by high-pressure rubber pipe and action pressure-testing joint with changing
Hot device connection, heat exchanger are placed in the tank；The pressure tap of more parts is provided with the second electro connecting pressure gauge, more parts
Exhaust outlet is connected by pipeline with supply main line, and second solenoid valve is provided with the connecting line, the ECU point
Do not electrically connected with supercharger, the first electro connecting pressure gauge, the second electro connecting pressure gauge, the first magnetic valve and second solenoid valve.
2. finned heat exchanger high pressure leak test plant according to claim 1, it is characterised in that：The exhaust of more parts
Mouth is additionally provided with the 3rd magnetic valve, and the Single port of the 3rd magnetic valve connects the exhaust outlet of more parts, and another port connection exhaust disappears
Sound device, the 3rd magnetic valve electrically connect with ECU.
3. finned heat exchanger high pressure leak test plant according to claim 1, it is characterised in that：More parts test mouths
Hand sluice valve is provided with high-pressure rubber pipe between heat exchanger.
4. according to any described finned heat exchanger high pressure leak test plants of claim 1-3, it is characterised in that：More parts
For seven parts, an air inlet, an exhaust outlet, a pressure tap and four test mouths are provided with seven parts.
5. according to any described finned heat exchanger high pressure leak test plants of claim 1-3, it is characterised in that：On the tank
Portion's opening is covered with safety net.
6. according to any described finned heat exchanger high pressure leak test plants of claim 1-3, it is characterised in that：The tank is consolidated
Be scheduled on trough rack, on trough rack solid welding have instrument desk and electric appliance box, the ECU is located in electric appliance box, it is described first electricity
Contact pressure table, the second electro connecting pressure gauge and pressure reducer are arranged on instrument desk, and indicator lamp is provided with instrument desk.
7. according to any described finned heat exchanger high pressure leak test plant of claim 6, it is characterised in that：Outside the electric appliance box
Portion is provided with movement and controls platform, and mobile console electrically connects with ECU.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710506325.0A CN107340104B (en) | 2017-06-28 | 2017-06-28 | High-pressure leakage detection equipment for fin type heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710506325.0A CN107340104B (en) | 2017-06-28 | 2017-06-28 | High-pressure leakage detection equipment for fin type heat exchanger |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107340104A true CN107340104A (en) | 2017-11-10 |
| CN107340104B CN107340104B (en) | 2023-09-08 |
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ID=60220991
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710506325.0A Active CN107340104B (en) | 2017-06-28 | 2017-06-28 | High-pressure leakage detection equipment for fin type heat exchanger |
Country Status (1)
| Country | Link |
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| CN (1) | CN107340104B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111412693A (en) * | 2020-03-30 | 2020-07-14 | 浙江大学 | New energy battery heat pump air conditioner heat exchanger and processing equipment thereof |
| CN114878111A (en) * | 2022-05-05 | 2022-08-09 | 珠海格力电器股份有限公司 | Leakage detection method and device for air conditioner heat exchanger |
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| CN206920096U (en) * | 2017-06-28 | 2018-01-23 | 大连尼维斯冷暖技术有限公司 | A kind of pressure testing device for finned heat exchanger |
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2017
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Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201041525Y (en) * | 2007-04-10 | 2008-03-26 | 孙德亮 | Detection device for heat radiator airproof performance |
| CN104697726A (en) * | 2013-12-05 | 2015-06-10 | 珠海格力电器股份有限公司 | Workpiece leakage detection device |
| CN104748919A (en) * | 2013-12-25 | 2015-07-01 | 格力电器（武汉）有限公司 | Leak detection device and method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111412693A (en) * | 2020-03-30 | 2020-07-14 | 浙江大学 | New energy battery heat pump air conditioner heat exchanger and processing equipment thereof |
| CN111412693B (en) * | 2020-03-30 | 2021-04-09 | 浙江大学 | New energy battery heat pump air conditioner heat exchanger and processing equipment thereof |
| CN114878111A (en) * | 2022-05-05 | 2022-08-09 | 珠海格力电器股份有限公司 | Leakage detection method and device for air conditioner heat exchanger |
| CN114878111B (en) * | 2022-05-05 | 2023-08-18 | 珠海格力电器股份有限公司 | Leakage detecting method and leakage detecting device for air conditioner heat exchanger |
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| Publication number | Publication date |
|---|---|
| CN107340104B (en) | 2023-09-08 |
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