Constant-temperature and constant-flow water system capable of following rotating speed of engine

Abstract

The utility model discloses a constant-temperature and constant-flow water system capable of following the rotating speed of an engine, belongs to the technical field of engines, and solves the problem that the performance and the service life of the engine are affected due to frequent clamping stagnation faults of an EGR (Exhaust Gas Recirculation) valve in a cold zone. The constant-temperature and constant-flow water system capable of following the rotating speed of the engine comprises a base and a control cabinet, a first support is arranged at one end of the base, the control cabinet is installed on the first support, a diaphragm pump is arranged on the base, an anti-freezing liquid inlet pipe is arranged at the input end of the diaphragm pump, a first branch pipe is arranged at the output end of the diaphragm pump, and a second branch pipe is arranged at the output end of the first branch pipe. A second branch pipe communicated with the first branch pipe is arranged at the other end of the first branch pipe, a heating tank communicated with the second branch pipe is arranged at one end of the second branch pipe, and a plurality of electric heating rods are arranged in the heating tank. According to the constant-temperature and constant-flow water system capable of following the rotating speed of the engine, the defects of the EGR valve can be found in time and perfected, and the service life of the engine is effectively prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of engines, and more particularly to a constant-temperature and constant-flow water system that can follow the speed of an engine. Background Art

[0002] The EGR valve, also known as the Exhaust Gas Recirculation (EGR) valve, is an engine-mounted component used to control the amount of exhaust gas recirculated back into the intake system. The EGR valve's primary function is to control the amount of exhaust gas entering the intake manifold, allowing a specific amount of exhaust gas to flow into the intake manifold for recirculation. This is done by directing engine exhaust gas into the intake manifold for combustion, thereby lowering combustion chamber temperatures, improving engine efficiency, enhancing the combustion environment, reducing engine burden, effectively reducing NOx (nitrogen oxides) emissions, and extending the life of engine components.

[0003] According to the latest market information, EGR valves frequently become stuck and malfunction in cold climates when engines are fitted to vehicles. Failure of the EGR valve can lead to unstable idling or even stalling, impacting engine performance and service life while also polluting the air. Utility Model Content

[0004] The technical problem to be solved by the present invention is to address the above-mentioned deficiencies in the prior art and provide a constant temperature and constant flow water system that can follow the engine speed, simulate the operating temperature of the EGR valve of the engine in different areas, reproduce the freezing effect and ice-melting ability of the EGR valve at different temperatures, timely discover and improve the deficiencies of the EGR valve, effectively extend the service life of the engine, and reduce pollution to the air environment.

[0005] The technical solution of the utility model is as follows: a constant temperature and constant flow water system that can follow the engine speed, comprising a base and a control cabinet, one end of the base is provided with a first bracket, the control cabinet is installed on the first bracket, a diaphragm pump is provided on the base, the input end of the diaphragm pump is provided with an antifreeze water inlet pipe, the output end of the diaphragm pump is provided with a first branch pipe, the other end of the first branch pipe is connected to the second branch pipe through a three-way joint, one end of the second branch pipe is provided with a heating tank connected thereto, a plurality of electric heating rods are provided in the heating tank, and a first liquid level sensor is provided in the heating tank, an engine return pipe connected thereto is provided on the heating tank, a circulating pump is provided at the other end of the second branch pipe, the output end of the circulating pump is provided with an engine water inlet pipe, a first stop valve and a second stop valve are respectively provided on the first branch pipe and the second branch pipe, and the second stop valve is located between the three-way joint and the circulating pump, the electric heating rod, the first liquid level sensor, the first stop valve, the second stop valve, the diaphragm pump, and the circulating pump are all electrically connected to the control cabinet.

[0006] As a further improvement, the base is a hollow rectangular frame, a bottom plate is provided on the base, and the diaphragm pump is installed on the bottom plate.

[0007] Furthermore, a high-level water supply tank is provided on one side of the heating tank, a second liquid level sensor is provided in the high-level water supply tank, a third branch pipe is provided at the bottom of the high-level water supply tank, the other end of the third branch pipe is connected to the second branch pipe, a third stop valve is provided on the third branch pipe, and the third stop valve and the second liquid level sensor are electrically connected to the control cabinet.

[0008] Furthermore, a second bracket is provided on the first bracket, and the second bracket is connected to the third branch pipe.

[0009] Furthermore, the second bracket includes a fixed rod and a movable rod, one end of the fixed rod is connected to the first bracket, and the movable rod is hingedly mounted on the fixed rod. Both the fixed rod and the movable rod are provided with an arc structure, and the two arc structures form a circular ring for fixing the third branch pipe, and the fixed rod and the movable rod are connected by bolts.

[0010] Furthermore, the height position of the high-position water supply tank is higher than the height position of the heating tank.

[0011] Furthermore, a plurality of universal wheels with self-locking devices are provided at the bottom of the base.

[0012] Furthermore, a push rod is provided at one end of the base close to the control cabinet.

[0013] Beneficial effects

[0014] Compared with the prior art, the present invention has the following advantages:

[0015] The utility model provides a constant temperature and constant flow water system that can follow the engine speed, can simulate the operating temperature of the EGR valve of the engine in different areas, reproduce the freezing effect and ice-melting ability of the EGR valve at different temperatures, timely discover and improve the shortcomings of the EGR valve, effectively extend the service life of the engine, and reduce pollution to the air environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural diagram of the utility model;

[0017] Figure 2 This is a schematic diagram of the top view of the base and diaphragm pump in the utility model;

[0018] Figure 3 It is a schematic diagram of the top cross-sectional structure of the second bracket in the present invention.

[0019] Among them: 1-base, 2-diaphragm pump, 3-heating tank, 4-high-position water supply tank, 5-control cabinet, 6-circulation pump, 7-antifreeze inlet pipe, 8-first branch pipe, 9-second branch pipe, 10-third branch pipe, 11-first stop valve, 12-second stop valve, 13-third stop valve, 14-engine water inlet pipe, 15-engine return pipe, 16-first bracket, 17-second bracket, 18-bottom plate, 19-universal wheel, 20-push rod, 171-fixed rod, 172-movable rod. DETAILED DESCRIPTION

[0020] The present invention will be further described below with reference to the specific embodiments in the accompanying drawings.

[0021] See Figure 1-3A constant temperature and constant flow water system that can follow the engine speed includes a base 1, a control cabinet 5, a first bracket 16 is provided at one end of the base 1, the control cabinet 5 is installed on the first bracket 16, a diaphragm pump 2 is provided on the base 1, an antifreeze liquid inlet pipe 7 is provided at the input end of the diaphragm pump 2, a first branch pipe 8 is provided at the output end of the diaphragm pump 2, the other end of the first branch pipe 8 is connected to a second branch pipe 9 through a three-way joint, and a heating tank 3 is provided at one end of the second branch pipe 9 to be connected thereto, and a plurality of electric heating rods are provided in the heating tank 3. Accordingly, a sensor for sensing the temperature is installed in the heating tank 3. The sensor of its temperature is electrically connected to the control cabinet 5; and the first liquid level sensor is provided in the heating tank 3, and the heating tank 3 is provided with an engine return pipe 15 connected thereto, the other end of the second branch pipe 9 is provided with a circulation pump 6, and the output end of the circulation pump 6 is provided with an engine water inlet pipe 14, the first branch pipe 8 and the second branch pipe 9 are respectively provided with a first stop valve 11 and a second stop valve 12, and the second stop valve 12 is located between the three-way joint and the circulation pump 6, the electric heating rod, the first liquid level sensor, the first stop valve 11, the second stop valve 12, the diaphragm The pump 2 and the circulating pump 6 are both electrically connected to the control cabinet 5. Before use, the control cabinet 5 controls the first stop valve 11 and the third stop valve 13 to open, and starts the diaphragm pump 2 at the same time, and replenishes the coolant into the heating tank 3 and the high-level water supply tank 4 through the diaphragm pump 2. When the first liquid level sensor and the second liquid level sensor detect that the heating tank 3 and the high-level water supply tank 4 are full of coolant, the control cabinet 5 controls the diaphragm pump 2 to stop working, and closes the first stop valve 11 and the third stop valve 13 at the same time, and the heating tank 3 starts to heat. When the antifreeze in the heating tank 3 is heated After reaching the specified temperature, the control cabinet 5 controls the second stop valve 12 to open, and the circulating pump 6 starts to work. The antifreeze in the heating tank 3 is transported to the engine to be tested along the engine water inlet pipe 14, and then flows back to the heating tank 3 through the engine return pipe 15. This reciprocating cycle can simulate the operating temperature of the EGR valve of the engine in different areas, reproduce the freezing effect and ice-melting ability of the EGR valve at different temperatures, timely discover and improve the shortcomings of the EGR valve, effectively extend the service life of the engine, and reduce pollution to the air environment.

[0022] In this embodiment, the base 1 is a hollow rectangular frame, on which a bottom plate 18 is provided, and the diaphragm pump 2 is mounted on the bottom plate 18. The bottom plate 18 is placed horizontally on the base 1, which can reinforce the base 1 and improve the overall structural strength of the base 1. At the same time, it can reduce the material usage, thereby reducing the production cost; and it can reduce the overall weight of the system, making it easier for operators to move.

[0023] In this embodiment, a high-level water filling tank 4 is provided on one side of the heating tank 3, a second liquid level sensor is provided in the high-level water filling tank 4, a third branch pipe 10 is provided at the bottom of the high-level water filling tank 4, the other end of the third branch pipe 10 is connected to the second branch pipe 9, and a third stop valve 13 is provided on the third branch pipe 10. The third stop valve 13 and the second liquid level sensor are electrically connected to the control cabinet 5; when the first liquid level sensor detects that there is insufficient coolant in the heating tank 3, the control cabinet 5 controls the third stop valve 13 to open, so that the coolant in the high-level water filling tank 4 enters the second branch pipe 9 from the second branch pipe 10, and the temperature of the coolant entering the engine can be adjusted by adding unheated coolant in the high-level water filling tank 4, so that the temperature of the coolant can change with the speed of the engine, which can more accurately simulate the working temperature changes in different regions.

[0024] In this embodiment, a second bracket 17 is provided on the first bracket 16, and the second bracket 17 is connected to the third branch pipe 10. The second bracket 17 includes a fixed rod 171 and a movable rod 172. One end of the fixed rod 171 is connected to the first bracket 16, and the movable rod 172 is hingedly mounted on the fixed rod 171. Both the fixed rod 171 and the movable rod 172 are provided with an arc structure, and the two arc structures form a ring for fixing the third branch pipe 10. The fixed rod 171 and the movable rod 172 are fixed by bolts; the third branch pipe 10 is placed in the arc structure on the fixed rod 171, and then the movable rod 172 is rotated so that the arc structure corresponding to the fixed rod 171 and the arc structure corresponding to the movable rod 172 are combined to form a ring, and then the fixed rod 171 and the movable rod 172 are connected by bolts, thereby achieving the purpose of fixing the third branch pipe 10.

[0025] In this embodiment, the height position of the high-level water supply tank 4 is higher than the height position of the heating tank 3, and the water pressure in the high-level water supply tank 4 is greater than the water pressure in the heating tank 3, which facilitates the coolant in the high-level water supply tank 4 to flow from the third branch pipe 10 into the second branch pipe 9.

[0026] In this embodiment, a plurality of universal wheels 19 with self-locking devices are provided at the bottom of the base 1. There are four universal wheels 19 with self-locking devices. The four universal wheels 19 are respectively installed at the four corners of the base 1, so that the constant temperature and constant water system can be moved to the designated position through the universal wheels 19, and then the self-locking device of the universal wheels 19 is locked to prevent it from moving during operation.

[0027] In this embodiment, a push rod 20 is provided at one end of the base 1 close to the control cabinet 5 , so that the base 1 can be pushed by the push rod 20 .

[0028] The above is only a preferred embodiment of the present invention. It should be pointed out that for those skilled in the art, several modifications and improvements can be made without departing from the structure of the present invention. These modifications and improvements will not affect the effect of the implementation of the present invention and the practicality of the patent.

Claims

1. A constant temperature and constant flow water system that can follow the engine speed, characterized in that: The invention comprises a base (1) and a control cabinet (5), wherein one end of the base (1) is provided with a first bracket (16), the control cabinet (5) is mounted on the first bracket (16), the base (1) is provided with a diaphragm pump (2), the input end of the diaphragm pump (2) is provided with an antifreeze liquid inlet pipe (7), the output end of the diaphragm pump (2) is provided with a first branch pipe (8), the other end of the first branch pipe (8) is connected to a second branch pipe (9) through a three-way joint, one end of the second branch pipe (9) is provided with a heating tank (3) connected thereto, the heating tank (3) is provided with a plurality of electric heating rods, and the heating tank (3) is provided with a first liquid The heating tank (3) is provided with an engine water return pipe (15) connected thereto, the other end of the second branch pipe (9) is provided with a circulation pump (6), the output end of the circulation pump (6) is provided with an engine water inlet pipe (14), the first branch pipe (8) and the second branch pipe (9) are respectively provided with a first stop valve (11) and a second stop valve (12), and the second stop valve (12) is located between the three-way joint and the circulation pump (6), and the electric heating rod, the first liquid level sensor, the first stop valve (11), the second stop valve (12), the diaphragm pump (2), and the circulation pump (6) are all electrically connected to the control cabinet (5).

2. A constant temperature and constant flow water system that can follow the engine speed according to claim 1, characterized in that: The base (1) is a hollow rectangular frame. A bottom plate (18) is provided on the base (1), and the diaphragm pump (2) is installed on the bottom plate (18).

3. The constant temperature and constant flow water system capable of following the engine speed according to claim 1, characterized in that: A high-level water supply tank (4) is provided on one side of the heating tank (3), a second liquid level sensor is provided in the high-level water supply tank (4), a third branch pipe (10) is provided at the bottom of the high-level water supply tank (4), the other end of the third branch pipe (10) is connected to the second branch pipe (9), a third stop valve (13) is provided on the third branch pipe (10), and the third stop valve (13) and the second liquid level sensor are both electrically connected to the control cabinet (5).

4. A constant temperature and constant flow water system that can follow the engine speed according to claim 3, characterized in that: A second bracket (17) is provided on the first bracket (16), and the second bracket (17) is connected to the third branch pipe (10).

5. A constant temperature and constant flow water system capable of following engine speed according to claim 4, characterized in that: The second bracket (17) includes a fixed rod (171) and a movable rod (172). One end of the fixed rod (171) is connected to the first bracket (16). The movable rod (172) is hingedly mounted on the fixed rod (171). Both the fixed rod (171) and the movable rod (172) are provided with an arc structure. The two arc structures form a circular ring for fixing the third branch pipe (10). The fixed rod (171) and the movable rod (172) are connected by bolts.

6. The constant temperature and constant flow water system capable of following the engine speed according to claim 3, characterized in that: The height of the high-position water replenishment tank (4) is higher than the height of the heating tank (3).

7. The constant temperature and constant flow water system capable of following the engine speed according to claim 1, characterized in that: The bottom of the base (1) is provided with a plurality of universal wheels (19) with self-locking devices.

8. The constant temperature and constant flow water system capable of following the engine speed according to claim 1, characterized in that: A push rod (20) is provided at one end of the base (1) close to the control cabinet (5).

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