CN217518834U

CN217518834U - Small-flow comprehensive fuel pump test bed

Info

Publication number: CN217518834U
Application number: CN202222205647.0U
Authority: CN
Inventors: 单亚光; 孔德胜; 刘洋; 牛新伍
Original assignee: Xinxiang Henghai Electromechanical Technology Co ltd
Current assignee: Xinxiang Henghai Electromechanical Technology Co ltd
Priority date: 2022-08-22
Filing date: 2022-08-22
Publication date: 2022-09-30
Anticipated expiration: 2032-08-22

Abstract

The utility model discloses a low flow comprehensive fuel pump test bench, the fuel tank comprises a fuel tank, the fuel tank upper end is equipped with pressure sensor one and temperature sensor, and is equipped with the opening on the fuel tank, and this opening is connected with relief valve one, and the front of fuel tank is equipped with the level gauge, and the lower extreme exit linkage of fuel tank has ball valve one, the side upper end of fuel tank is equipped with the oil filler hole, and the side lower extreme of fuel tank is equipped with two oil-outs, and first oil-out is connected with fluid circulation subassembly, and the second oil-out is with the inlet connection of ball valve four, the export of ball valve four and oil pump access connection, the export of oil pump pass through the pipe and the inlet connection of filter four, and test bench fluid self-loopa purifies, and test bench fluid temperature automatic temperature control possesses multiple safety precautions such as superpressure, overtemperature, electric leakage, low liquid level protection, can test multiple fuel pump, can go on running-in the running-in test, The test device comprises a test, a performance test and a fuel pump efficiency curve test, and can realize the simultaneous test of a plurality of fuel pumps.

Description

Small-flow comprehensive fuel pump test bed

Technical Field

The utility model relates to a test bench technical field specifically is a low discharge comprehensive fuel pump test bench.

Background

At present, fuel pumps produced in China need to be tested, and the test bed is used for carrying out test items such as running-in tests, inspection tests, performance tests and fuel pump efficiency curve tests on the fuel pumps, but the existing test bed has the defects of single function, insufficient automatic control, few test types and the like, and the batch tests and the production capacity of the fuel pumps are severely restricted.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome current defect, a low discharge comprehensive fuel pump test bench is provided, test bench fluid self-loopa purifies, test bench fluid temperature automatic temperature control possesses the superpressure, the overtemperature, the electric leakage, multiple safety protection measures such as low liquid level protection, can test multiple fuel pump, can go on the break-in test, the inspection test, the performance test, fuel pump efficiency curve is experimental, can realize automated control, and can realize many fuel pumps simultaneous testing, can effectively solve the problem in the background art.

In order to achieve the above purpose, the utility model provides a following technical scheme: a small-flow comprehensive fuel pump test bed comprises a fuel tank, wherein a pressure sensor I and a temperature sensor are arranged at the upper end of the fuel tank, an opening is formed in the upper end of the fuel tank and connected with a safety valve I, a liquid level meter is arranged on the front side of the fuel tank, a ball valve I is connected to an outlet at the lower end of the fuel tank, a fuel filling port is formed in the upper end of the side face of the fuel tank, two fuel outlets are formed in the lower end of the side face of the fuel tank, a first fuel outlet is connected with a fuel liquid circulating assembly, a second fuel outlet is connected with an inlet of a ball valve IV, an outlet of the ball valve IV is connected with an inlet of a fuel pump, an outlet of the fuel pump is connected with an inlet of a filter IV through a guide pipe, an outlet of the filter IV is connected with an inlet of a self-sealing head I through a guide pipe, an outlet of the hose I is connected with an inlet of a tested pump, and outlets of the tested pump are respectively provided with a pressure detection piece, the outlet of the tested pump is connected with a second hose, the outlet of the second hose is connected with the inlet of a self-sealing joint, the outlet of the self-sealing joint is connected with the inlet of a first flowmeter through a guide pipe, the outlet of the first flowmeter is connected with the inlet of a second filter through a guide pipe, a third safety valve and a throttle valve are further arranged on the guide pipe connected with the second filter through the self-sealing joint, the outlet of the second filter is connected with the inlet of the second flowmeter through a guide pipe, a second safety valve is connected between the outlet of the fourth filter and the outlet of the second flowmeter, the outlet of the second flowmeter is connected with the inlet of an oil tank through a guide pipe, the upper end of the oil tank is connected with an air tightness detection assembly, and one side of the oil tank is connected with a residual oil recovery system vent.

Furthermore, the oil liquid circulation assembly comprises a second ball valve, the inlet of the second ball valve is connected with the first oil outlet of the oil tank, the outlet of the second ball valve is connected with a third hose, the outlet of the third hose is connected with the inlet of the oil cooling machine, the outlet of the oil cooling machine is connected with a fourth hose, the outlet of the fourth hose is connected with the inlet of the third filter, and the outlet of the third filter is connected with the inlet of the upper end of the oil tank through a guide pipe.

Furthermore, the pressure detection piece comprises a pressure measuring joint arranged on the interface of the tested pump, the pressure measuring joint is connected with a second pressure sensor through a pressure measuring hose, the pressure of the inlet and the pressure of the outlet of the tested pump can be detected through the two second pressure sensors, and the detection is more convenient.

Further, residual oil recovery system is including setting up the collection fill by the pump below, the inside of collecting the fill is equipped with liquid level switch, and the export of collecting the fill passes through the access connection of pipe and ball valve three, the export of ball valve three passes through the pipe and the access connection of filter five, the export of filter five passes through the pipe and the access connection of pump package, the export of pump package passes through the pipe and the access connection of check valve, the export of check valve passes through the pipe and the access connection of filter six, the export of filter six passes through the pipe and is connected with the oil tank, can collect the oil that is tried the pump to leak out through collecting the fill, then can extract the oil of collecting inside the oil tank through the pump package.

Furthermore, the air tightness detecting assembly comprises an air filter, an outlet of the air filter is connected with an inlet of a pressure regulating valve through a guide pipe, an outlet of the pressure regulating valve is connected with an inlet of a detecting piece through a guide pipe, an outlet of the detecting piece is connected with an air vent of an oil tank through a guide pipe, an inlet and an outlet of the detecting piece are both provided with a first electromagnetic valve, the air vent of the oil tank is also connected with an inlet of a second electromagnetic valve through a guide pipe, an outlet of the second electromagnetic valve is connected with an inlet of the first filter through a guide pipe, an outlet of the first filter is connected with an inlet of a vacuum pump through a guide pipe, the vacuum pump can pump the oil tank and the detection part to be vacuum, and the pumped gas can be filtered by the filter, and by opening the second electromagnetic valve at the inlet of the detection piece, gas enters the detection piece through the air filter and the pressure regulating valve, so that the internal air pressure of the detection piece is regulated.

Compared with the prior art, the beneficial effects of the utility model are that: the vacuum pump can pump the oil tank and the detection part to be vacuum, and the pumped gas can be filtered by the filter, and by opening the second electromagnetic valve at the inlet of the detection part, the gas enters the detection part through the air filter and the pressure regulating valve so as to regulate the air pressure in the detection part, the small-flow comprehensive fuel pump test bed can collect the oil leaked from the tested pump through the collecting hopper, then the collected oil can be pumped into the oil tank through a pump set, the oil liquid of the test bed is purified in a self-circulation way, the temperature of the oil liquid of the test bed is automatically controlled, and the test bed has various safety protection measures such as overpressure, overtemperature, electric leakage, low liquid level protection and the like, the testing device can test various fuel pumps, can perform running-in tests, inspection tests, performance tests and fuel pump efficiency curve tests, can realize automatic control, and can realize simultaneous testing of multiple fuel pumps.

Drawings

Fig. 1 is a schematic structural view of the present invention.

In the figure: the system comprises a pressure sensor I1, a temperature sensor 2, a safety valve I3, an oil filling port 4, an electromagnetic valve I5, a collecting hopper 6, an oil cooler 7, a hose IV 8, a pressure regulating valve 9, an air filter 10, a vacuum pump 11, a filter I12, a solenoid valve II 13, a flow meter II 14, a filter II 15, a safety valve III 16, a flow meter I17, a throttle valve 18, a self-sealing joint II 19, a hose II 20, a pressure sensor II 21, a pressure measuring hose 22, a pressure measuring joint 23, a filter III 24, a filter VI 25, a check valve 26, a pump set 27, a hose I28, a self-sealing joint I29, a safety valve II 30, a safety valve II 31, a ball valve IV 32, a ball valve III 33 oil pump 34, a liquid level switch 35 tested pump, a ball IV 36, a liquid level meter 37, an oil tank 38, a ball valve I39, a ball valve II 40, a hose III 41 and a filter V42.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

Referring to fig. 1, the present invention provides a technical solution: a small-flow comprehensive fuel pump test bed comprises a fuel tank 38, wherein a pressure sensor I1 and a temperature sensor 2 are arranged at the upper end of the fuel tank 38, an opening is formed in the upper end of the fuel tank 38 and connected with a safety valve I3, a liquid level meter 37 is arranged on the front face of the fuel tank 38, a ball valve I39 is connected to an outlet at the lower end of the fuel tank 38, a fuel filling port 4 is formed in the upper end of the side face of the fuel tank 38, two fuel outlets are formed in the lower end of the side face of the fuel tank 38, a first fuel outlet is connected with a fuel oil circulating assembly, a second fuel outlet is connected with an inlet of a ball valve IV 36, an outlet of the ball valve IV 36 is connected with an inlet of a fuel pump 33, an outlet of the fuel pump 33 is connected with an inlet of a filter IV 31 through a guide pipe, an outlet of the filter IV 31 is connected with an inlet of a self-sealing joint IV 29 through a guide pipe, an outlet of the self sealing joint IV 29 is connected with a hose I28, an outlet of the hose I28 is connected with an inlet of a tested pump 35, a pressure detection piece is arranged at an inlet and an outlet of the tested pump 35, the outlet of the tested pump 35 is connected with a second hose 20, the outlet of the second hose 20 is connected with the inlet of a second self-sealing joint 19, the outlet of the second self-sealing joint 19 is connected with the inlet of a first flowmeter 17 through a conduit, the outlet of the first flowmeter 17 is connected with the inlet of a second filter 15 through a conduit, a third safety valve 16 and a throttle valve 18 are further arranged on the conduit connecting the second self-sealing joint 19 with the second filter 15, the outlet of the second filter 15 is connected with the inlet of a second flowmeter 14 through a conduit, a second safety valve 30 is connected between the outlet of the fourth filter 31 and the outlet of the second flowmeter 14, the outlet of the second flowmeter 14 is connected with the inlet of an oil tank 38 through a conduit, an air vent at the upper end of the oil tank 38 is connected with an air tightness detection assembly, one side of the oil tank 38 is connected with a residual oil recovery system, the oil circulation assembly comprises a second ball valve 40, the inlet of the second hose 40 is connected with a first oil outlet of the ball valve 38, the outlet of the ball valve II 40 is connected with a hose III 41, the outlet of the hose III 41 is connected with the inlet of the oil cooler 7, the outlet of the oil cooler 7 is connected with a hose IV 8, the outlet of the hose IV 8 is connected with the inlet of a filter III 24, the outlet of the filter III 24 is connected with the upper end inlet of the oil tank 38 through a conduit, the pressure detection part comprises a pressure measuring connector 23 arranged on the interface of the tested pump 35, the pressure measuring connector 23 is connected with a pressure sensor II 21 through a pressure measuring hose 22, the inlet and outlet pressures of the tested pump 35 can be detected through the two pressure sensors II 21, the detection is more convenient, the residual oil recovery system comprises a collecting hopper 6 arranged below the tested pump 35, a liquid level switch 34 is arranged inside the collecting hopper 6, the outlet of the collecting hopper 6 is connected with the inlet of the ball valve III 32 through a conduit, the outlet of the ball valve III 32 is connected with the inlet of the filter V42 through a conduit, the outlet of the filter five 42 is connected with the inlet of the pump group 27 through a conduit, the outlet of the pump group 27 is connected with the inlet of the one-way valve 26 through a conduit, the outlet of the one-way valve 26 is connected with the inlet of the filter six 25 through a conduit, the outlet of the filter six 25 is connected with the oil tank 38 through a conduit, the oil leaked by the tested pump 35 can be collected through the collecting hopper 6, then the collected oil can be pumped into the oil tank 38 through the pump group 27, the air tightness detecting assembly comprises the air filter 10, the outlet of the air filter 10 is connected with the inlet of the pressure regulating valve 9 through a conduit, the outlet of the pressure regulating valve 9 is connected with the inlet of the detecting piece through a conduit, the outlet of the detecting piece is connected with the air vent of the oil tank 38 through a conduit, the inlet and the outlet of the detecting piece are both provided with the first electromagnetic valve 5, the air vent of the oil tank 38 is also connected with the inlet of the second electromagnetic valve 13 through a conduit, the air vent in the oil tank 38 is an air inlet and outlet opening, when the air needs to be fed or discharged from the oil tank 38, air vents are formed, the outlet of the electromagnetic valve II 13 is connected with the inlet of the filter I12 through a guide pipe, the outlet of the filter I12 is connected with the inlet of the vacuum pump 11 through a guide pipe, the oil tank 38 and the interior of the detection piece can be vacuumized through the vacuum pump 11, the vacuumized gas can be filtered through the filter I12 during pumping, and the gas enters the detection piece through the air filter 10 and the pressure regulating valve 9 by opening the electromagnetic valve II 13 at the inlet of the detection piece, so that the internal air pressure of the detection piece is regulated The fuel pump efficiency curve test can realize automatic control and can realize the simultaneous test of a plurality of fuel pumps.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention.

Claims

1. The utility model provides a low flow comprehensive fuel pump test bench, includes oil tank (38), its characterized in that: the upper end of the oil tank (38) is provided with a first pressure sensor (1) and a first temperature sensor (2), the upper end of the oil tank (38) is provided with an opening, the opening is connected with a first safety valve (3), the front surface of the oil tank (38) is provided with a liquid level meter (37), the lower end outlet of the oil tank (38) is connected with a first ball valve (39), the upper end of the side surface of the oil tank (38) is provided with an oil filling port (4), the lower end of the side surface of the oil tank (38) is provided with two oil outlets, the first oil outlet is connected with an oil liquid circulation component, the second oil outlet is connected with the inlet of a fourth ball valve (36), the outlet of the fourth ball valve (36) is connected with the inlet of an oil pump (33), the outlet of the oil pump (33) is connected with the inlet of a fourth filter (31) through a guide pipe, the outlet of the fourth filter (31) is connected with the inlet of a first self-sealing head (29) through a guide pipe, and the outlet of the first sealing head (29) is connected with a first hose (28), the outlet of the first hose (28) is connected with the inlet of a tested pump (35), the inlet and the outlet of the tested pump (35) are respectively provided with a pressure detection piece, the outlet of the tested pump (35) is connected with a second hose (20), the outlet of the second hose (20) is connected with the inlet of a second self-sealing joint (19), the outlet of the second self-sealing joint (19) is connected with the inlet of a first flowmeter (17) through a conduit, the outlet of the first flowmeter (17) is connected with the inlet of a second filter (15) through a conduit, a third safety valve (16) and a throttle valve (18) are further arranged on the conduit connecting the second self-sealing joint (19) with the second filter (15), the outlet of the second filter (15) is connected with the inlet of the second flowmeter (14) through a conduit, a second safety valve (30) is connected between the outlet of the fourth filter (31) and the outlet of the second flowmeter (14), the outlet of the second flowmeter (14) is connected with the inlet of an oil tank (38) through a conduit, an air vent at the upper end of the oil tank (38) is connected with an air tightness detection assembly, and one side of the oil tank (38) is connected with a residual oil recovery system.

2. The low flow integrated fuel pump test stand of claim 1, wherein: the oil liquid circulation assembly comprises a second ball valve (40), the inlet of the second ball valve (40) is connected with the first oil outlet of the oil tank (38), the outlet of the second ball valve (40) is connected with a third hose (41), the outlet of the third hose (41) is connected with the inlet of the oil cooler (7), the outlet of the oil cooler (7) is connected with a fourth hose (8), the outlet of the fourth hose (8) is connected with the inlet of a third filter (24), and the outlet of the third filter (24) is connected with the inlet at the upper end of the oil tank (38) through a guide pipe.

3. The low flow integrated fuel pump test stand of claim 1, wherein: the pressure detection piece comprises a pressure measuring joint (23) arranged on an interface of a tested pump (35), and the pressure measuring joint (23) is connected with a second pressure sensor (21) through a pressure measuring hose (22).

4. The low flow integrated fuel pump test stand of claim 1, wherein: the residual oil recovery system comprises a collecting hopper (6) arranged below a tested pump (35), a liquid level switch (34) is arranged inside the collecting hopper (6), the outlet of the collecting hopper (6) is connected with the inlet of a ball valve III (32) through a guide pipe, the outlet of the ball valve III (32) is connected with the inlet of a filter V (42) through a guide pipe, the outlet of the filter V (42) is connected with the inlet of a pump group (27) through a guide pipe, the outlet of the pump group (27) is connected with the inlet of a one-way valve (26) through a guide pipe, the outlet of the one-way valve (26) is connected with the inlet of a filter VI (25) through a guide pipe, and the outlet of the filter VI (25) is connected with an oil tank (38) through a guide pipe.

5. The low flow integrated fuel pump test stand of claim 1, wherein: the air tightness detection assembly comprises an air filter (10), the outlet of the air filter (10) is connected with the inlet of a pressure regulating valve (9) through a guide pipe, the outlet of the pressure regulating valve (9) is connected with the inlet of a detection piece through a guide pipe, the outlet of the detection piece is connected with the air vent of an oil tank (38) through a guide pipe, the inlet and the outlet of the detection piece are respectively provided with a first electromagnetic valve (5), the air vent of the oil tank (38) is further connected with the inlet of a second electromagnetic valve (13) through a guide pipe, the outlet of the second electromagnetic valve (13) is connected with the inlet of a first filter (12) through a guide pipe, and the outlet of the first filter (12) is connected with the inlet of a vacuum pump (11) through a guide pipe.