CN210317574U - Dust-containing oil product testing device - Google Patents
Dust-containing oil product testing device Download PDFInfo
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- CN210317574U CN210317574U CN201921301603.XU CN201921301603U CN210317574U CN 210317574 U CN210317574 U CN 210317574U CN 201921301603 U CN201921301603 U CN 201921301603U CN 210317574 U CN210317574 U CN 210317574U
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Abstract
The utility model provides a dust-containing oil testing arrangement, include: the device comprises an oil tank, a first oil supply pipeline, a circulating pump, a first filter, a second oil supply pipeline, an oil outlet connecting block, a first oil supply pump, a first oil way switching valve, a first oil return pipeline, a pressure regulating valve, a second oil return pipeline, a particle counter, an oil conveying pipeline, an oil conveying pump, a dusty oil barrel, a stirrer, a third oil supply pipeline, a second oil supply pump and a one-way valve; the oil tank comprises an oil return area and an oil supply area which are separated; one end of the first oil supply pipeline is connected with an oil return area of the oil tank, and the other end of the first oil supply pipeline is connected with an oil supply area of the oil tank; a circulating pump and a first filter are arranged on the first oil supply pipeline; one end of the second oil supply pipeline is connected with an oil supply area of the oil tank, and the other end of the second oil supply pipeline is connected with a first inlet of the oil outlet connecting block; a first oil supply pump is arranged on the second oil supply pipeline close to the oil supply area, and a first oil way switching valve is arranged on the second oil supply pipeline close to the oil outlet connecting block; the utility model discloses can verify the resistance to impurity of injection pump and sprayer product.
Description
Technical Field
The utility model relates to a testing arrangement of diesel engine injection pump and sprayer, especially a dirty oil testing arrangement of diesel engine injection pump and sprayer.
Background
The fuel injection pump and the fuel injector are core parts of the diesel engine, and in the service life evaluation of the diesel engine, the fuel injection pump and the fuel injector occupy important positions, and the service life required by a heavy truck reaches 100 kilometers. Such a long service life means a longer service life of the diesel engine, while the reliability requirements of the core components, such as the injection pump and the injector, are higher. At present, a standard reliability test method is established for both an injection pump and an injector, and the standard requirement is also met for an injection pump/injector reliability test bed, but no corresponding test method and device are provided for some special influence factors, such as sand and dust entering the injection pump or the injector.
Disclosure of Invention
To exist not enough among the prior art, the utility model provides a dirty oil testing arrangement for verify the resistance to impurity of injection pump and sprayer on the reliability test bench, thereby the examination or improve the ability of resistance to wear of spare part, so that improve the adaptability of product to the abominable application environment, reduce the diesel engine fault rate, improve the diesel engine life-span. The utility model adopts the technical proposal that:
a dust-laden oil testing apparatus, comprising: the device comprises an oil tank, a first oil supply pipeline, a circulating pump, a first filter, a second oil supply pipeline, an oil outlet connecting block, a first oil supply pump, a first oil way switching valve, a first oil return pipeline, a pressure regulating valve, a second oil return pipeline, a particle counter, an oil conveying pipeline, an oil conveying pump, a dusty oil barrel, a stirrer, a third oil supply pipeline, a second oil supply pump and a one-way valve;
the oil tank comprises an oil return area and an oil supply area which are separated; the oil return area is used for storing return oil, and the oil supply area is used for storing filtered fuel oil;
one end of the first oil supply pipeline is connected with an oil return area of the oil tank, and the other end of the first oil supply pipeline is connected with an oil supply area of the oil tank; a circulating pump and a first filter are arranged on the first oil supply pipeline;
one end of the second oil supply pipeline is connected with an oil supply area of the oil tank, and the other end of the second oil supply pipeline is connected with a first inlet of the oil outlet connecting block; a first oil supply pump is arranged on the second oil supply pipeline close to the oil supply area, and a first oil way switching valve is arranged on the second oil supply pipeline close to the oil outlet connecting block;
one end of the first oil return pipeline is connected with the second oil supply pipeline, and the other end of the first oil return pipeline is connected with an oil return area of the oil tank; a pressure regulating valve is arranged on the first oil return pipeline;
an oil outlet of the oil outlet connecting block is connected with an oil return area of the oil tank through a second oil return pipeline; a particle counter is arranged on the second oil return pipeline;
one end of the oil pipeline is connected with an oil supply area of the oil tank, the other end of the oil pipeline is connected with the dust-containing oil barrel, and the oil pipeline is provided with an oil delivery pump; a stirrer is arranged in the dusty oil barrel;
one end of the third oil supply pipeline is connected with the dusty oil barrel, and the other end of the third oil supply pipeline is connected with a third inlet of the oil outlet connecting block; a second oil supply pump is arranged on the third oil supply pipeline; and a check valve is arranged between the second oil supply pump and the oil outlet connecting block on the third oil supply pipeline, and the flow direction of the check valve is from the second oil supply pump to the oil outlet connecting block.
Further, the circulating pump is arranged on the first oil supply pipeline close to the oil return area side.
Furthermore, a heat exchanger is arranged on the first oil supply pipeline and used for cooling the fuel oil entering the oil supply area.
Furthermore, the connecting position of the first oil return pipeline and the second oil supply pipeline is positioned between the first oil supply pump and the first oil way switching valve.
Furthermore, a first pressure sensor and a second filter are arranged on the second oil supply pipeline.
Further, a second filter is located between the first oil passage switching valve and a position where the first oil return passage and the second oil supply passage are connected.
Furthermore, the dust-containing oil product testing device also comprises a self-suction oil way, one end of the self-suction oil way is connected with an oil supply area of the oil tank, and the other end of the self-suction oil way is connected with a second inlet of the oil outlet connecting block; a second oil way switching valve is arranged on the self-priming oil way; and a second pressure sensor is arranged on the self-priming oil circuit.
Further, still be equipped with the hybrid tube in the dirty oil drum, set up the hybrid pump on the hybrid tube.
Furthermore, a throttle valve is further arranged between the second oil supply pump and the oil outlet connecting block on the third oil supply pipeline.
Furthermore, a third pressure sensor is arranged on the third oil supply pipeline.
Further, the second oil supply pump employs a plunger pump.
The utility model has the advantages that:
1) the impurity is conveniently mixed into in diesel oil to but real-time supervision impurity quantity can verify the resistance to impurity of injection pump and sprayer product.
2) Clean diesel oil passes through the pressure pipeline and gets into out oily connecting block, and the diesel oil that contains impurity is gone into out oily connecting block through the plunger pump, can be in order to adjust impurity content in the diesel oil.
3) The energy consumption and the diesel oil consumption are low; the test method is applicable to both the fuel injection pump and the fuel injector.
Drawings
Fig. 1 is a schematic view of the structure of the present invention.
Detailed Description
The invention is further described with reference to the following specific drawings and examples.
The utility model provides a dirty oil testing arrangement, including oil tank 1, first oil feed pipeline 2, circulating pump 3, first filter 4, heat exchanger 5, second oil feed pipeline 6, the connecting block 7 that produces oil, first oil feed pump 8, first oil circuit diverter valve 9, first oil return pipeline 10, air-vent valve 11, first pressure sensor 12, second filter 13, second oil return pipeline 14, particle counter 15, from oil circuit 16, second oil circuit diverter valve 17, second pressure sensor 18, oil pipeline 19, oil transfer pump 20, dirty oil drum 21, agitator 22, hybrid tube 23, hybrid pump 24, third oil feed pipeline 25, second oil feed pump 26, check valve 27, choke valve 28, third pressure sensor 29;
the oil tank 1 comprises an oil return area 101 and an oil supply area 102 which are isolated; diesel oil for testing is stored in the oil tank 1, and after the testing is carried out for a period of time, the return oil contains impurity particles, so that an oil return area 101 and an oil supply area 102 which are isolated from each other need to be arranged; diesel oil containing impurities is contained in the oil return area 101, and filtered clean diesel oil is contained in the oil supply area 102;
one end of the first oil supply pipeline 2 is connected with an oil return area 101 of the oil tank, and the other end of the first oil supply pipeline is connected with an oil supply area 102 of the oil tank; a circulating pump 3 and a first filter 4 are arranged on the first oil supply pipeline 2; the circulation pump 3 is preferably arranged on the first oil supply line 2 on the side close to the oil return area 101; preferably, the first oil supply pipeline 2 is further provided with a heat exchanger 5 for cooling the diesel oil entering the oil supply area 102;
one end of the second oil supply pipeline 6 is connected with an oil supply area 102 of the oil tank, and the other end of the second oil supply pipeline is connected with a first inlet of the oil outlet connecting block 7; a first oil supply pump 8 is arranged on the second oil supply pipeline 6 close to the oil supply area 102, and a first oil way switching valve 9 is arranged on the second oil supply pipeline 6 close to the oil outlet connecting block 7;
one end of the first oil return pipeline 10 is connected with the second oil supply pipeline 6, and the other end is connected with an oil return area 101 of the oil tank; the first oil return pipeline 10 is provided with a pressure regulating valve 11; preferably, the connection position of the first oil return pipeline 10 and the second oil supply pipeline 6 is positioned between the first oil supply pump 8 and the first oil way switching valve 9;
preferably, the second oil supply line 6 may further be provided with a first pressure sensor 12 and a second filter 13; the second filter 13 is preferably located between the first oil way switching valve 9 and the connection position of the first oil return line 10 and the second oil supply line 6;
an oil outlet 701 of the oil outlet connecting block 7 is connected with an oil return area 101 of the oil tank through a second oil return pipeline 14; a particle counter 15 is arranged on the second oil return pipeline 14;
in order to meet the test requirements of some fuel injection pumps capable of self-priming oil supply, the utility model can also be provided with a self-priming oil path 16, one end of the self-priming oil path 16 is connected with the oil supply area 102 of the oil tank, and the other end is connected with the second inlet of the oil outlet connecting block 7; a second oil path switching valve 17 is arranged on the self-priming oil path 16, and a second pressure sensor 18 can be further arranged;
one end of the oil pipeline 19 is connected with an oil supply area 102 of the oil tank, the other end of the oil pipeline is connected with a dust-containing oil drum 21, and the oil pipeline 19 is provided with an oil pump 20; a stirrer 22 is arranged in the dusty oil barrel 21;
preferably, a mixing pipe 23 can be further arranged in the dusty oil barrel 21, and a mixing pump 24 is arranged on the mixing pipe 23; the mixing pump and the mixing pipe are matched with the stirrer, so that particles contained in diesel oil in the dust-containing oil barrel can be uniformly distributed;
one end of a third oil supply pipeline 25 is connected with the dusty oil barrel 21, and the other end is connected with a third inlet of the oil outlet connecting block 7; a second oil supply pump 26 is provided on the third oil supply line 25; the second oil supply pump 26 is preferably a plunger pump, which can accurately control the flow rate and facilitate the flow rate adjustment; the third oil supply line 25 has a small flow rate with respect to the first oil supply line and the second oil supply line, and in order to prevent backflow of fuel, a check valve 27 is provided on the third oil supply line 25 between the second oil supply pump 26 and the oil outlet connection block 7, and the check valve 27 flows from the second oil supply pump 26 to the oil outlet connection block 7;
preferably, a throttle valve 28 may be further provided on the third oil supply line 25 between the second oil supply pump 26 and the outlet oil connecting block 7; the throttle 28 can on the one hand regulate the flow during the test and on the other hand shut off the third oil supply line 25 after the test has ended;
preferably, a third pressure sensor 29 may also be provided on the third oil supply line 25.
The testing process comprises the following steps:
the dust-containing oil product testing device needs to operate together with a reliability test bed of an oil injection pump/an oil injector; installing an oil injection pump and an oil injector on a reliability test bed, wherein the oil injector is connected to the oil injection pump;
an engine oil pipeline connected with an oil injection pump moves a dust-containing oil product testing device to the side of a reliability test bed, an oil pipe is connected to an oil inlet of the oil injection pump from an oil outlet 701 of an oil outlet connecting block 7, return oil of the oil injection pump and an oil injector is connected to an oil return area 101 of an oil tank 1, and a cooling water pipe of the reliability test bed is connected to a heat exchanger 5; electrifying a dust-containing oil product testing device; checking the diesel oil liquid level in the oil tank, and starting a circulating pump 3; starting a reliability test bed, and adding the rotating speed and the pressure of an oil injection pump to a test working condition to enable the oil injection pump and an oil injector to work under a specified condition; starting a particle counter 15 and a first oil supply pump 8, monitoring impurities in diesel oil until the number of particles is reduced to be below 1000/10 ml, adding a part of clean diesel oil in an oil supply area 102 into a dust-containing oil barrel 21 through an oil transfer pump 20, simultaneously adding impurity particles used for a test, starting a stirrer 22, optionally starting a mixing pump 24 to uniformly mix the impurity particles in the dust-containing oil barrel 21 and the diesel oil, starting a plunger pump 26 and a throttle valve 28 to enable the diesel oil containing the impurity particles to enter an oil outlet connecting block 7 through a one-way valve 27, supplying oil pressure by the first oil supply pump 8, enabling the clean diesel oil with certain pressure to enter the oil outlet connecting block 7 from a second oil supply pipeline 6, and enabling the clean diesel oil with certain pressure to enter an oil injection pump after being mixed with the diesel oil containing the impurity particles;
adjusting a lift knob on a plunger pump 26 to control the flow of diesel containing impurity particles, observing the change of readings of a particle counter 15 at the same time until the number of the particles is adjusted to a specified range, starting to record the running time of an oil injection pump and an oil injector, observing the running conditions of the oil injection pump and the oil injector at the same time, closing the plunger pump 26 and a throttle valve 28 in time if a product fault occurs, closing a reliability test bed at the same time, checking and analyzing the failure of the product, running according to the specified running time if no fault occurs, and closing the plunger pump 26 and the throttle valve 28, closing a circulating pump 3 at the same time, closing the reliability test bed and ending the test.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the examples, those skilled in the art should understand that the technical solutions of the present invention can be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the scope of the claims of the present invention.
Claims (11)
1. A dust-containing oil product testing device is characterized by comprising: the device comprises an oil tank (1), a first oil supply pipeline (2), a circulating pump (3), a first filter (4), a second oil supply pipeline (6), an oil outlet connecting block (7), a first oil supply pump (8), a first oil way switching valve (9), a first oil return pipeline (10), a pressure regulating valve (11), a second oil return pipeline (14), a particle counter (15), an oil conveying pipeline (19), an oil conveying pump (20), a dust-containing oil barrel (21), a stirrer (22), a third oil supply pipeline (25), a second oil supply pump (26) and a one-way valve (27);
the oil tank (1) comprises an oil return area (101) and an oil supply area (102) which are separated from each other;
one end of the first oil supply pipeline (2) is connected with an oil return area (101) of the oil tank, and the other end of the first oil supply pipeline is connected with an oil supply area (102) of the oil tank; a circulating pump (3) and a first filter (4) are arranged on the first oil supply pipeline (2);
one end of the second oil supply pipeline (6) is connected with an oil supply area (102) of the oil tank, and the other end of the second oil supply pipeline is connected with a first inlet of the oil outlet connecting block (7); a first oil supply pump (8) is arranged on the second oil supply pipeline (6) close to the oil supply area (102), and a first oil way switching valve (9) is arranged on the second oil supply pipeline (6) close to the oil outlet connecting block (7);
one end of the first oil return pipeline (10) is connected with the second oil supply pipeline (6), and the other end is connected with an oil return area (101) of the oil tank; a pressure regulating valve (11) is arranged on the first oil return pipeline (10);
an oil outlet (701) of the oil outlet connecting block (7) is connected with an oil return area (101) of the oil tank through a second oil return pipeline (14); a particle counter (15) is arranged on the second oil return pipeline (14);
one end of the oil pipeline (19) is connected with an oil supply area (102) of the oil tank, the other end of the oil pipeline is connected with a dust-containing oil barrel (21), and the oil pipeline (19) is provided with an oil delivery pump (20); a stirrer (22) is arranged in the dusty oil barrel (21);
one end of a third oil supply pipeline (25) is connected with the dust-containing oil barrel (21), and the other end of the third oil supply pipeline is connected with a third inlet of the oil outlet connecting block (7); a second oil supply pump (26) is arranged on the third oil supply pipeline (25); and a check valve (27) is arranged between the second oil supply pump (26) and the oil outlet connecting block (7) on the third oil supply pipeline (25), and the flow direction of the check valve (27) is from the second oil supply pump (26) to the oil outlet connecting block (7).
2. The dust-laden oil testing apparatus of claim 1,
the circulating pump (3) is arranged on the first oil supply pipeline (2) and close to the oil return area (101).
3. The dust-laden oil testing apparatus of claim 1,
the first oil supply pipeline (2) is also provided with a heat exchanger (5) for cooling the fuel oil entering the oil supply area (102).
4. The dust-laden oil testing apparatus of claim 1,
the connecting position of the first oil return pipeline (10) and the second oil supply pipeline (6) is positioned between the first oil supply pump (8) and the first oil way switching valve (9).
5. The dust-laden oil testing apparatus of claim 1,
the second oil supply pipeline (6) is also provided with a first pressure sensor (12) and a second filter (13).
6. The dust-laden oil testing apparatus of claim 5,
the second filter (13) is positioned between the first oil way switching valve (9) and the connecting position of the first oil return pipeline (10) and the second oil supply pipeline (6).
7. The dust-laden oil testing apparatus of claim 1,
the oil tank is characterized by also comprising a self-suction oil way (16), wherein one end of the self-suction oil way (16) is connected with an oil supply area (102) of the oil tank, and the other end of the self-suction oil way is connected with a second inlet of the oil outlet connecting block (7); a second oil path switching valve (17) is arranged on the self-suction oil path (16); a second pressure sensor (18) is provided on the self-priming oil path (16).
8. The dust-laden oil testing apparatus of claim 1,
still be equipped with mixing tube (23) in dirty oil drum (21), set up mixing pump (24) on mixing tube (23).
9. The dust-laden oil testing apparatus of claim 1,
and a throttle valve (28) is also arranged between the second oil supply pump (26) and the oil outlet connecting block (7) on the third oil supply pipeline (25).
10. The dust-laden oil testing apparatus of claim 1,
a third pressure sensor (29) is also arranged on the third oil supply pipeline (25).
11. The dust-laden oil testing apparatus of claim 1,
the second oil supply pump (26) is a plunger pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921301603.XU CN210317574U (en) | 2019-08-13 | 2019-08-13 | Dust-containing oil product testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921301603.XU CN210317574U (en) | 2019-08-13 | 2019-08-13 | Dust-containing oil product testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210317574U true CN210317574U (en) | 2020-04-14 |
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ID=70129445
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921301603.XU Active CN210317574U (en) | 2019-08-13 | 2019-08-13 | Dust-containing oil product testing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210317574U (en) |
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2019
- 2019-08-13 CN CN201921301603.XU patent/CN210317574U/en active Active
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