CN106644547B - Pulse simulator - Google Patents
Pulse simulator Download PDFInfo
- Publication number
- CN106644547B CN106644547B CN201710001032.7A CN201710001032A CN106644547B CN 106644547 B CN106644547 B CN 106644547B CN 201710001032 A CN201710001032 A CN 201710001032A CN 106644547 B CN106644547 B CN 106644547B
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- China
- Prior art keywords
- valve
- storage tank
- electromagnetic valve
- oil
- oil storage
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- 230000001105 regulatory effect Effects 0.000 claims abstract description 44
- 238000004088 simulation Methods 0.000 claims abstract description 9
- 238000001514 detection method Methods 0.000 claims description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 238000007710 freezing Methods 0.000 claims description 7
- 239000007788 liquid Substances 0.000 claims description 7
- 230000002528 anti-freeze Effects 0.000 description 9
- 239000007789 gas Substances 0.000 description 6
- 230000007306 turnover Effects 0.000 description 4
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M99/00—Subject matter not provided for in other groups of this subclass
- G01M99/007—Subject matter not provided for in other groups of this subclass by applying a load, e.g. for resistance or wear testing
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The invention relates to a testing device, in particular to a pulse simulation device, which comprises a pressure regulating valve, an electromagnetic valve, an electronic pressure gauge, a control system, an oil storage tank, a quick connector, an oscilloscope and a pressure regulating device, wherein the pressure regulating valve is connected with the electromagnetic valve; the pressure regulating valve is respectively connected with the air storage tank and the electromagnetic valve, the electromagnetic valve is connected with the top of the oil storage tank through a pipeline, the electronic pressure gauge is arranged between the oil storage tank and the electromagnetic valve through a three-way pipe, the number of the quick connectors is not less than four, the quick connectors are connected with the oil outlet below the oil storage tank through a pipeline, the oscilloscope is connected with the quick connectors through a pressure sensor, and the pressure regulating device is connected with the quick connectors; the electromagnetic valve and the electronic pressure gauge are connected with the control system; the electromagnetic valve is provided with an electromagnetic valve, and the electromagnetic valve is provided with a muffler; the top of the oil storage tank is provided with an oil tank valve, and antifreezing oil is filled in the oil storage tank. The device is simple and novel, simulates the pulse condition in the actual use of the heat exchanger, has accurate and reliable test, and provides test equipment of a new heat exchanger.
Description
Technical Field
The invention relates to a testing device, in particular to a pulse simulation device.
Background
At present, the emission of nitrogen oxides is mainly reduced by reducing the temperature of exhaust gas at the exhaust port of an engine. A heat exchanger is typically installed at the exhaust port of the engine to reduce the exhaust gas temperature. The exhaust gas discharged from the exhaust port of the engine has a certain pressure and temperature, so that the heat exchanger is required to be pressure-resistant and long in service life.
After the heat exchanger is produced, the appearance and the air tightness of the product are usually checked, and the service life of the heat exchanger is not detected, because no proper detection equipment is provided, and the pulse of the tail gas of the automobile cannot be simulated.
Disclosure of Invention
In order to solve the problems, the invention provides a pulse simulation device capable of simulating automobile exhaust pulses, which comprises the following specific technical scheme:
the pulse simulation device comprises a pressure regulating valve, an electromagnetic valve, an electronic pressure gauge, a control system, an oil storage tank, a quick connector, an oscilloscope and a pressure regulating device; the pressure regulating valve is respectively connected with the air storage tank and the electromagnetic valve, the electromagnetic valve is connected with the top of the oil storage tank through a pipeline, the electronic pressure gauge is arranged between the oil storage tank and the electromagnetic valve through a three-way pipe, at least four quick connectors are arranged, the quick connectors are connected with an oil outlet below the oil storage tank through pipelines, the oscilloscope is connected with the quick connectors through a pressure sensor, and the pressure regulating device is connected with the quick connectors; the electromagnetic valve and the electronic pressure gauge are connected with the control system; the electromagnetic valve is provided with an electromagnetic valve, and the electromagnetic valve is provided with a muffler; the top of the oil storage tank is provided with an oil tank valve, antifreeze oil is filled in the oil storage tank, and the quick connector is respectively connected with the water inlet and the water outlet of the heat exchanger.
The pressure regulating device comprises a pressure regulating valve and a pressure relief pipe, the pressure regulating valve is connected with the quick connector, the pressure relief pipe is connected with the pressure regulating valve, and the other end of the pressure relief pipe is provided with a pressure relief pipe valve.
The anti-freezing oil storage tank further comprises an exhaust valve and an exhaust pipe, wherein one end of the exhaust valve is connected with the oil outlet through a pipeline, the other end of the exhaust valve is connected with the exhaust pipe, the exhaust valve and the exhaust pipe are vertically installed, and the height of the exhaust pipe is not lower than the liquid level of anti-freezing oil in the oil storage tank.
The leakage alarm comprises two tooth-shaped detection pieces, a plurality of teeth are arranged on the tooth-shaped detection pieces at equal intervals, the teeth of the two tooth-shaped detection pieces are installed in a staggered mode and are not in contact with each other, and the tooth-shaped detection pieces are respectively connected with the control system.
The oil tank valve is a ball valve, and the electromagnetic valve is a gate valve.
The pressure regulating valve is a gate valve.
The exhaust valve is a ball valve.
And a liquid viewing pipe is arranged on the side surface of the oil storage tank.
The pipeline is a transparent PU pipe.
The pressure regulating valve is used for regulating the output pressure of the air storage tank.
The electromagnetic valve is switched according to the set frequency to pressurize and depressurize the oil storage tank, so that pulse simulation is realized. The electromagnetic valve is a two-position three-way electromagnetic valve, the air inlet is connected with the pressure regulating valve, the working port is connected with the oil storage tank, the air outlet is connected with the electromagnetic valve, and the electromagnetic valve is provided with a muffler. When the air inlet is connected with the working port, high-pressure gas enters the oil storage tank to impact antifreeze oil, and the antifreeze oil impacts the heat exchanger. After the electromagnetic valve is switched, the working port is connected with the exhaust port, high-pressure gas in the oil storage tank is discharged from the exhaust port, and the pressure of the oil storage tank is restored to the atmospheric pressure. The electromagnetic valve is switched back and forth according to the set frequency, so that the pulse with the set frequency is realized.
The electromagnetic valve is arranged at the exhaust port of the electromagnetic valve to control the exhaust speed, thereby controlling the pulse waveform. The electromagnetic valve adopts a gate valve, and the opening size of the gate valve is controlled by rotating the handle, so that the exhaust speed is controlled, and more accurate control can be realized. If a ball valve is adopted, the control precision is poor. The waveform of the oscilloscope is observed as the handle is rotated until the desired waveform is displayed.
And the electronic pressure gauge detects the air pressure in the pipeline, and when the pressure is smaller than a set range value, the control system gives an alarm and stops the test, so that the test invalidation caused by pipeline leakage is prevented.
The oil tank valve at the top of the oil tank is used as an oil filling port and also can be used as an exhaust port. The oil tank valve seals the oil tank and can preserve pressure. The oil tank valve adopts the ball valve, and the handle of the ball valve can be completely opened only by rotating 90 degrees, so that the oil tank valve is convenient to use.
The side of the oil storage tank is provided with a liquid viewing pipe which is used for observing the liquid level of the antifreeze oil in the oil storage tank.
An oil outlet is arranged below the oil storage tank and is connected with a transparent PU pipeline. The exhaust valve is vertically arranged above the pipeline through the three-way pipe, the other end of the exhaust valve is vertically provided with a transparent PU exhaust pipe, the height of the exhaust pipe is larger than the liquid level of the antifreeze oil in the oil storage barrel, otherwise, when the exhaust valve is opened, the antifreeze oil in the oil storage tank overflows from the exhaust pipe. When the air in the heat exchanger flows to the oil storage barrel along the pipeline, the air must pass through the three-way pipe below the exhaust valve, the exhaust valve is opened, the air enters the exhaust valve along the three-way pipe, then enters the exhaust pipe, and then is discharged into the air. The transparent PU pipe is convenient for observing various conditions in the pipeline, including the conditions of antifreeze oil and bubbles.
The pipeline at the oil outlet adopts a transparent PU pipeline, the pipeline is connected with 7 quick connectors through a three-way pipe, every two quick connectors form a group, the quick connectors are respectively connected with the water inlet and the water outlet of the heat exchanger, and three heat exchangers can be tested simultaneously. The rest of the quick connector is connected with a pressure sensor, the pressure sensor is connected with an oscilloscope, and the oscilloscope displays pulse waveforms in a pipeline of the pulse simulation device.
The pipeline is also connected with a pressure regulating valve through the three-way pipe, the other end of the pressure regulating valve is connected with a pressure relief pipe, the diameter of the pressure relief pipe is larger than that of the pipeline, and the tail end of the pressure relief pipe is provided with a pressure relief pipe valve. The pressure regulating valve is used for regulating the amplitude of the waveform. The pressure regulating valve adopts a gate valve, the gate valve is accurately controlled, the handle can be slowly rotated, and the waveform of the oscillograph is observed until the waveform reaches the required amplitude.
During the test, place the heat exchanger that connects on the mount in the turnover case, the turnover case can prevent to prevent that the antifreeze oil from flowing elsewhere when revealing. The leakage alarm is arranged below the heat exchanger, tooth-shaped detection sheets of the leakage alarm are arranged in a staggered mode and are respectively connected with the control system, when leakage occurs, anti-freezing oil drops onto the tooth-shaped detection sheets, two adjacent teeth are communicated, and the control system gives an alarm.
When the device is used, the pressure regulating valve is adjusted according to the test requirement, and then the pulse frequency is set in the control system according to the test requirement. The heat exchanger is connected to the quick connector, the heat exchanger is placed at a lower position and is lower than the oil storage tank, air in the heat exchanger flows to the oil storage tank along the pipeline, the exhaust valve is opened, and the air is discharged into the air from the exhaust pipe. The heat exchanger is slowly rotated until no bubbles come out of the heat exchanger. An oscilloscope is connected into the pipeline through a pressure sensor. The heat exchanger is placed on a fixing frame in the turnover box, and the leakage alarm is placed below the heat exchanger. And starting a control system, and respectively adjusting the solenoid valve and the pressure regulating valve until the oscillograph displays the required waveform and amplitude.
Compared with the prior art, the invention has the following beneficial effects:
The pulse simulation device provided by the invention is simple and novel, simulates the pulse condition of the heat exchanger in actual use, is accurate and reliable in test, and provides new test equipment of the heat exchanger.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Detailed Description
Specific embodiments of the present invention will now be described with reference to the accompanying drawings.
As shown in fig. 1, the pulse simulation device comprises a pressure regulating valve 2, an electromagnetic valve 3, an electronic pressure gauge 4, a control system 51, an oil storage tank 6, a quick connector, an oscilloscope 52 and a pressure regulating device; the pressure regulating valve 2 is respectively connected with the air storage tank 1 and the electromagnetic valve 3, the electromagnetic valve 3 is connected with the top of the oil storage tank 6 through a pipeline, the electronic pressure gauge 4 is arranged between the oil storage tank 6 and the electromagnetic valve 3 through a three-way pipe, the number of the quick connectors is not less than four, the quick connectors are connected with an oil outlet below the oil storage tank 6 through a pipeline, the oscilloscope 52 is connected with the quick connectors through a pressure sensor 53, and the pressure regulating device is connected with the quick connectors; the electromagnetic valve 3 and the electronic pressure gauge 4 are connected with a control system; the electromagnetic valve 3 is provided with an electromagnetic valve 31, and the electromagnetic valve 31 is provided with a muffler 32; the top of the oil storage tank 6 is provided with an oil tank valve 61, antifreeze oil is filled in the oil storage tank, and the quick connector is respectively connected with the water inlet and the water outlet of the heat exchanger.
The pressure regulating device comprises a pressure regulating valve 71 and a pressure relief pipe 72, the pressure regulating valve 71 is connected with a quick connector, the pressure relief pipe 72 is connected with the pressure regulating valve 71, and a pressure relief pipe valve 73 is arranged at the other end of the pressure relief pipe 72.
The anti-freezing oil storage tank is characterized by further comprising an exhaust valve 63 and an exhaust pipe 64, wherein one end of the exhaust valve 63 is connected with the oil outlet through a pipeline, the other end of the exhaust valve 63 is connected with the exhaust pipe 64, the exhaust valve 63 and the exhaust pipe 64 are vertically installed, and the height of the exhaust pipe 64 is not lower than the liquid level of anti-freezing oil in the oil storage tank 6.
Still include the weeping alarm, the weeping alarm includes two profile of tooth detection pieces 9, equidistant a plurality of teeth that are equipped with on the profile of tooth detection piece 9, the crisscross installation of the tooth of two profile of tooth detection pieces 9, and not contact each other, profile of tooth detection piece 9 is connected with control system respectively.
The tank valve 61 is a ball valve, and the solenoid valve 31 is a gate valve.
The pressure regulating valve 71 is a gate valve.
The exhaust valve 63 is a ball valve.
The side of the oil storage tank 6 is provided with a viewing pipe 62.
The pipeline is a transparent PU pipe.
When the device is used, the pressure regulating valve 2 is firstly adjusted according to test requirements, and then the pulse frequency is set in the control system according to the test requirements. The heat exchanger is connected to the quick connector, the heat exchanger is placed at a lower position than the oil storage tank 6, air in the heat exchanger flows to the oil storage tank 6 along a pipeline, the exhaust valve 63 is opened, and the air is discharged from the exhaust pipe 64 into the air. The heat exchanger is slowly rotated until no bubbles come out of the heat exchanger. An oscilloscope is connected to the pipeline through a pressure sensor 53. The heat exchanger is placed on a fixing frame in the turnover box, and the leakage alarm is placed below the heat exchanger. The control system is activated to adjust the solenoid valve 31 and the pressure regulating valve 71, respectively, until the oscilloscope 52 displays the desired waveform and amplitude.
Claims (1)
1. The pulse simulation device is characterized by comprising a pressure regulating valve (2), an electromagnetic valve (3), an electronic pressure gauge (4), a control system (51), an oil storage tank (6), a quick connector, an oscilloscope (52) and a pressure regulating device; the pressure regulating valve (2) is respectively connected with the air storage tank (1) and the electromagnetic valve (3), the electromagnetic valve (3) is connected with the top of the oil storage tank (6) through a pipeline, the electronic pressure gauge (4) is arranged between the oil storage tank (6) and the electromagnetic valve (3) through a three-way pipe, the number of the quick connectors is not less than four, the quick connectors are connected with the oil outlet below the oil storage tank (6) through pipelines, the oscilloscope (52) is connected with the quick connectors through the pressure sensor (53), and the pressure regulating device is connected with the quick connectors; the electromagnetic valve (3) and the electronic pressure gauge (4) are connected with a control system; the electromagnetic valve (3) is provided with an electromagnetic valve (31), and the electromagnetic valve (31) is provided with a muffler (32); an oil tank valve (61) is arranged at the top of the oil storage tank (6), antifreezing oil is filled in the oil storage tank, and the quick connector is respectively connected with the water inlet and the water outlet of the heat exchanger;
The pressure regulating device comprises a pressure regulating valve (71) and a pressure relief pipe (72), the pressure regulating valve (71) is connected with the quick connector, the pressure relief pipe (72) is connected with the pressure regulating valve (71), and the other end of the pressure relief pipe (72) is provided with a pressure relief pipe valve (73);
The anti-freezing device is characterized by further comprising an exhaust valve (63) and an exhaust pipe (64), wherein one end of the exhaust valve (63) is connected with an oil outlet through a pipeline, the other end of the exhaust valve is connected with the exhaust pipe (64), the exhaust valve (63) and the exhaust pipe (64) are vertically arranged, and the height of the exhaust pipe (64) is not lower than the liquid level of anti-freezing oil in the oil storage tank (6);
The automatic leakage detection device is characterized by further comprising a leakage alarm, wherein the leakage alarm comprises two tooth-shaped detection pieces (9), a plurality of teeth are arranged on the tooth-shaped detection pieces (9) at equal intervals, the teeth of the two tooth-shaped detection pieces (9) are installed in a staggered manner and are not contacted with each other, and the tooth-shaped detection pieces (9) are respectively connected with a control system;
the oil tank valve (61) is a ball valve, and the electromagnetic valve (31) is a gate valve;
the pressure regulating valve (71) is a gate valve;
the exhaust valve (63) is a ball valve;
a viewing pipe (62) is arranged on the side surface of the oil storage tank (6);
The pipeline is a transparent PU pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710001032.7A CN106644547B (en) | 2017-01-03 | 2017-01-03 | Pulse simulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710001032.7A CN106644547B (en) | 2017-01-03 | 2017-01-03 | Pulse simulator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106644547A CN106644547A (en) | 2017-05-10 |
| CN106644547B true CN106644547B (en) | 2024-05-17 |
Family
ID=58838664
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710001032.7A Active CN106644547B (en) | 2017-01-03 | 2017-01-03 | Pulse simulator |
Country Status (1)
| Country | Link |
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| CN (1) | CN106644547B (en) |
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| CN106153315A (en) * | 2016-06-21 | 2016-11-23 | 长春鑫利密封制品有限公司 | A kind of engine gasket pulse test bench |
| CN206330770U (en) * | 2017-01-03 | 2017-07-14 | 无锡塔尔基热交换器科技有限公司 | Pulse simulation device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150059327A1 (en) * | 2013-04-17 | 2015-03-05 | Arthur M. Rabert | Dual channel pulsed variable pressure hydraulic test apparatus |
-
2017
- 2017-01-03 CN CN201710001032.7A patent/CN106644547B/en active Active
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| EP0631216A2 (en) * | 1993-05-18 | 1994-12-28 | IPT Institut für Prüftechnik Gerätebau GmbH & CO KG | Method and control circuit for regulating pressure by means of solenoid valves, e.g. for pressure testing of plastic tubes |
| JP2005241089A (en) * | 2004-02-25 | 2005-09-08 | Mitsubishi Electric Corp | Apparatus diagnosing device, refrigeration cycle device, apparatus diagnosing method, apparatus monitoring system and refrigeration cycle monitoring system |
| CN1995951A (en) * | 2006-12-12 | 2007-07-11 | 天津市天一科技有限公司 | Gasoline filter impulse test device |
| CN201344883Y (en) * | 2009-01-11 | 2009-11-11 | 江苏常牵庞巴迪牵引系统有限公司 | Hydraulic pulse fatigue device in pipe |
| CN101793652A (en) * | 2010-02-10 | 2010-08-04 | 中国北方车辆研究所 | Heat exchanger performance experiment device |
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| CN106644547A (en) | 2017-05-10 |
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