Cooling system for gas engine test bench

Abstract

Provided is a cooling system for a gas engine test bench. A water storage pool is sequentially connected with a Y-shaped filter c, a valve f, a water pump c and an electric valve through water pipes, and the water storage pool is connected with a low-temperature water inlet of a gas engine. A water outlet of the high-level water tank is sequentially connected with a valve c, a water pump b and a heat exchanger; one side of the heat exchanger is connected to a cooling water tower; a water outlet of the cooling water tower is sequentially connected with a valve d, a heat exchanger, a valve e and a Y-shaped filter b, and the other side of the Y-shaped filter b is connected with a gas engine. The high-low temperature water system is arranged on the fuel gas test bench, the state of the fuel gas engine under the actual working condition is met to the greatest extent, the requirements of all cooling systems of the fuel gas engine are further met, and test run of different types of engines can be met through subsequent slight transformation; the high-low temperature water pipeline device for the gas engine is safe and convenient to maintain.

Description

Technical Field

[0001] The utility model belongs to the technical field of engine cooling cycle, in particular to a cooling system for a gas engine test bench. Background Art

[0002] The function of the gas engine cooling system is to force cooling of the gas engine, dissipate part of the excess heat of the gas engine, and control the temperature of each heated part within a lower range. From the perspective of improving the thermal efficiency of the gas engine cycle, it is hoped that the heat dissipated will be as small as possible and excessive cooling will not be allowed, so as to obtain better economic indicators of the gas engine.

[0003] Before leaving the factory, the gas engine needs to undergo a series of running-in tests at the gas engine manufacturer. The gas engine's own cooling system ensures that the connected parts of the gas engine that need to be cooled are cooled in time. The gas engine's peripheral cooling system, i.e., the cooling system for the test bench, is also an important guarantee for the gas engine's own cooling system.

[0004] To this end, a cooling system for a gas engine test bench is provided to solve the above problems. Summary of the invention

[0005] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a cooling system for a gas engine test bench. The cooling system of the test bench is a complete cooling system to ensure gas engine testing, so as to at least partially solve the above technical problems.

[0006] The technical solution adopted by the utility model is as follows:

[0007] The utility model proposes a cooling system for a gas engine test bench, including a high-temperature water system and a low-temperature water system;

[0008] The high-temperature water system includes valve a, a water storage tank, valve b, a Y-type filter a, a water pump a, a high-level water tank, valve c, a water pump b, a heat exchanger, valve d, valve e, a Y-type filter b, a cooling water tower, a gas engine, an overflow pipe a and an overflow pipe b;

[0009] The valve a is connected to the water tank, the overflow pipe a is arranged on one side of the water tank, and the water tank is connected to the high-level water tank through the valve b, the Y-type filter a, and the water pump a in sequence;

[0010] The low temperature water system includes valve g, valve h, water storage tank, electric valve, water pump c, valve f and Y-type filter c;

[0011] The water storage tank is connected to the Y-type filter c, the valve f, the water pump c and the electric valve in sequence through water pipes, and the water storage tank is connected to the low-temperature water inlet of the gas engine.

[0012] As a further solution of the utility model, the water outlet of the high-level water tank is connected to the valve c, the water pump b and the heat exchanger in sequence, and one side of the heat exchanger is connected to the cooling water tower.

[0013] As a further solution of the utility model, the water outlet of the cooling water tower is connected to the connecting valve d, the heat exchanger, the valve e and the Y-type filter b in sequence, and the other side of the Y-type filter b is connected to the gas engine.

[0014] As a further solution of the utility model, the low-temperature water outlet of the gas engine enters the cooling water tower through valve g in one way and returns to the water storage tank through valve h in the other way. The water in the water storage tank is supplied by the cooling water tower.

[0015] As a further solution of the utility model, the high-temperature return water pipe of the gas engine is connected between the valve c and the water pump b, and the vent water pipe of the gas engine water circuit returns water to the high-level water tank.

[0016] As a further solution of the utility model, the overflow pipe b is arranged on one side of the high-level water tank.

[0017] Implementing the technical solution of the utility model will have the following beneficial effects:

[0018] The gas test bench of the utility model is provided with a high and low temperature water system, which can meet the state of the gas engine under actual working conditions to the greatest extent possible, and thus meet the needs of various cooling systems of the gas engine, and with a little subsequent modification, it can also meet the test runs of different types of engines; and the high and low temperature water pipeline device for the gas engine is safe and easy to maintain.

[0019] The above summary is for the purpose of description only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments and features described above, further aspects, embodiments and features of the utility model will be readily apparent by reference to the accompanying drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or technical descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 The present invention is a schematic structural diagram of a cooling system for a gas engine test bench proposed in an embodiment of the present invention.

[0022] In the figure: 1. valve a; 2. water storage tank; 3. valve b; 4. Y-type filter a; 5. water pump a; 6. high-level water tank; 7. valve c; 8. water pump b; 9. heat exchanger; 10. valve d; 11. valve e; 12. Y-type filter b; 13. cooling tower; 14. valve g; 15. valve h; 16. water storage tank; 17. electric valve; 18. water pump c; 19. valve f; 20. Y-type filter c; 21. gas engine; 22. overflow pipe a; 23. overflow pipe b.

[0023] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention. DETAILED DESCRIPTION

[0024] In the following, only some exemplary embodiments are briefly described. As those skilled in the art will appreciate, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and descriptions are considered to be exemplary and non-restrictive in nature.

[0025] It should be noted that the terms "first", "second", etc. are only used to distinguish between description and position description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the feature defined as "first" etc. may explicitly or implicitly include one or more of the features; similarly, when the quantity of certain features is not limited in the form of words such as "two" or "three", it should be noted that the feature also explicitly or implicitly includes one or more feature quantities;

[0026] In the embodiments of the present invention, unless otherwise clearly specified and limited, the terms such as "installation", "connection", "fixation" and the like should be understood in a broad sense; for example, it can be a fixed connection, a detachable connection, or an integral molding; it can be a mechanical connection, a direct connection, welding, or an indirect connection through an intermediate medium, or it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the drawings in the specification and the specific circumstances.

[0027] In the description of the embodiments of the present invention, it should be understood that terms such as "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside" and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the embodiments of the present invention.

[0028] like Figure 1 As shown, an embodiment of the utility model provides a cooling system for a gas engine test bench, including a high-temperature water system and a low-temperature water system;

[0029] The high temperature water system includes valve a1, water storage tank 2, valve b3, Y-type filter a4, water pump a5, high-level water tank 6, valve c7, water pump b8, heat exchanger 9, valve d10, valve e11, Y-type filter b12, cooling water tower 13, gas engine 21, overflow pipe a22 and overflow pipe b23;

[0030] The valve a1 is connected to the water tank 2, the overflow pipe a22 is arranged on one side of the water tank 2, and the water tank 2 is connected to the high-level water tank 6 via the valve b3, the Y-type filter a4, and the water pump a5 in sequence.

[0031] In the specific application of the utility model, in the high-temperature water system, the cooling water first flows into the water tank 2 through the valve a1. The water tank serves as a storage and buffer device for cooling water, which can ensure the continuous supply of cooling water. When the water level in the water tank is too high, the excess cooling water will flow out through the overflow pipe a22 to maintain the water level in the water tank stable. The cooling water starts from the water tank 2, passes through the valve b3 for flow control, and then is filtered through the Y-type filter a4 to remove impurities and particulate matter in the cooling water to prevent blockage and damage to subsequent equipment. The filtered cooling water enters the water pump a5, which provides sufficient power to enable the cooling water to flow smoothly to the high-level water tank 6.

[0032] The high-level water tank 6 plays the role of stabilizing pressure and providing cooling water. It is located at a relatively high position, and uses gravity to allow the cooling water to flow naturally to the heat exchanger 9 and other parts that need cooling. The cooling water from the high-level water tank 6 passes through the valve c7 again for flow control, and then is pressurized by the water pump b8 and enters the heat exchanger 9. In the heat exchanger 9, the cooling water exchanges heat with the high-temperature parts of the gas engine, absorbs heat and takes the heat away, thereby cooling the gas engine. The temperature of the cooling water after heat exchange will increase, forming high-temperature water.

[0033] The high-temperature water then passes through valve d10 and valve e11 for flow control and direction switching, and then passes through Y-type filter b12 for secondary filtration to ensure the cleanliness of the cooling water. Finally, the high-temperature water flows into the cooling tower 13 for cooling. Through the spray and ventilation devices in the cooling tower, the cooling water is fully in contact with the air to reduce the temperature.

[0034] The cooled cooling water flows back to the water storage tank 2 again, forming a closed loop. At the same time, during the circulation of cooling water, the water level is controlled and discharged through the overflow pipe b23 to ensure the stable operation of the entire system.

[0035] The low temperature water system includes valve g14, valve h15, water storage tank 16, electric valve 17, water pump c18, valve f15 and Y-type filter c20;

[0036] The water storage tank 16 is connected to the Y-type filter c20, the valve f19, the water pump c18 and the electric valve 17 in sequence through water pipes, and the water storage tank 16 is connected to the low-temperature water inlet of the gas engine 21.

[0037] In the specific application of the utility model, the water storage tank 16 is used as a storage device for cooling water to ensure the continuous supply of cooling water. The water storage tank 16 is connected to the Y-type filter c20 through a water pipe. The function of the Y-type filter is to filter out impurities and particulate matter in the cooling water to prevent them from causing damage to the gas engine and the cooling system. The cooling water filtered by the Y-type filter c20 enters the valve f19, which is used to control the flow of cooling water to ensure that the cooling water can be supplied to the gas engine as required; then, the cooling water enters the water pump c18, which is the power source in the low-temperature water system. It provides sufficient pressure to enable the cooling water to flow smoothly to the gas engine.

[0038] The electric valve 17 can adjust the flow speed and direction of the cooling water according to the system's working requirements and control instructions, thereby achieving precise control of the gas engine's cooling process. Through precise adjustment of the electric valve 17, it can be ensured that the gas engine can obtain appropriate cooling effects under different working conditions.

[0039] The water storage tank 16 is also directly connected to the low-temperature water inlet of the gas engine 21 through a water pipe, and the cooling water can directly enter the low-temperature part of the gas engine to effectively cool it. This direct connection method can reduce the heat loss and pressure loss of the cooling water during the transportation process and improve the cooling efficiency.

[0040] In a possible implementation, the water outlet of the high-level water tank 6 is connected to the valve c7 , the water pump b8 , and the heat exchanger 9 in sequence, and one side of the heat exchanger 9 is connected to the cooling water tower 13 .

[0041] In the specific application of the utility model, cooling water enters the water pump b8 through valve c7. The water pump b8 drives the flow of water through mechanical energy, provides the necessary pressure and flow for the cooling water, so that it can overcome the pipe resistance and flow smoothly to the heat exchanger 9. The heat exchanger 9 uses the principle of heat conduction to transfer the heat generated by the gas engine to the cooling water flowing through it. When the cooling water passes through the heat exchanger 9, it absorbs the heat generated by the engine, thereby reducing the temperature of the engine and preventing it from overheating. One side of the heat exchanger 9 is connected to the cooling water tower 13. The cooling water tower 13 releases heat in the process of heat exchange with the air, thereby reducing its own temperature. After the cooling water absorbs heat in the heat exchanger 9, the temperature rises, and then enters the cooling water tower 13. Through the action of the spray device and the fan in the water tower, it fully contacts and exchanges heat with the air, and finally dissipates the heat into the air.

[0042] Through the working principle of this cooling system, the gas engine test bench can effectively reduce the temperature of the engine to ensure its normal operation and stable performance. At the same time, the cooling system can also realize the recycling of cooling water, improve the use efficiency of cooling water and reduce operating costs.

[0043] In a possible implementation, the water outlet of the cooling water tower 13 is connected to the connecting valve d10 , the heat exchanger 9 , the valve e11 and the Y-type filter b12 in sequence, and the other side of the Y-type filter b12 is connected to the gas engine 21 .

[0044] In the specific application of the utility model, after the cooling water completes the heat dissipation cycle, the outlet of the cooling water tower 13 is connected to the valve d10, and the valve d10 is used as a device to control the reflux of the cooling water, ensuring that the cooling water can flow back to the heat exchanger 9 according to the set flow rate and direction. The cooling water passing through the valve d10 enters the heat exchanger 9 again, and the cooling water undergoes a second heat exchange process. Since the cooling water tower 13 has already performed preliminary heat dissipation on it, the temperature of the cooling water is relatively low at this time. When the heat generated by the engine is transferred to the cooling water again, the cooling water can more effectively absorb and take away the heat, thereby further reducing the temperature of the engine.

[0045] After passing through the heat exchanger 9, the cooling water flows through the valve e11. The valve e11 regulates and controls the cooling water to flow to the Y-type filter b12, ensuring that the cooling water can pass through the filter smoothly and remove impurities therein. The Y-type filter b12 uses a built-in filter to filter impurities in the cooling water, thereby protecting the gas engine 21 from damage by impurities. When the cooling water passes through the Y-type filter b12, the impurities therein are blocked by the filter and remain in the filter, while the clean cooling water continues to flow to the gas engine 21.

[0046] Finally, the cooling water filtered by the Y-type filter b12 enters the gas engine 21, providing the necessary cooling effect for the engine. Clean cooling water can more effectively reduce the temperature of the engine and ensure the normal operation and stable performance of the engine.

[0047] In a possible implementation, the low-temperature water outlet of the gas engine 21 enters the cooling water tower 13 through valve g14 in one way and returns to the water storage tank 16 through valve h15 in another way. The water in the water storage tank 16 is supplied by the cooling water tower 13.

[0048] In the specific application of the utility model, the low-temperature water outlet of the gas engine 21 has two outlet directions, one of which flows directly to the cooling water tower 13 through the valve g14. The function of the valve g14 is to control the flow and direction of the cooling water in this way to ensure that the cooling water can smoothly enter the cooling water tower for heat dissipation. The cooling water tower 13 dissipates the heat in the cooling water into the atmosphere through its heat dissipation mechanism, such as a fan or natural convection, so that the cooling water is cooled.

[0049] Another cooling water path returns to the water storage tank 16 through valve h15. Valve h15 also controls the flow rate so that an appropriate amount of cooling water can flow back to the water storage tank. As one of the water sources of the cooling system, the water storage tank 16 stores a certain amount of cooling water. When the cooling water flows back to the water storage tank through valve h15, the cooling water in the tank is replenished and updated, thereby ensuring the supply of cooling water.

[0050] Through such a cycle, the cooling system achieves effective cooling of the gas engine. The cooling water is recycled after dissipating heat through the cooling tower, which not only improves the cooling efficiency but also saves water resources. At the same time, the presence of the water storage tank ensures a stable supply of cooling water, making the entire cooling system more reliable and durable.

[0051] In a possible implementation, the high-temperature return water pipe of the gas engine 21 is connected between the valve c7 and the water pump b8, and the venting water pipe of the water circuit of the gas engine 21 returns water to the high-level water tank 6.

[0052] In the specific application of the utility model, a large amount of heat is generated inside the gas engine 21 during operation, causing the cooling water temperature to rise significantly. The high-temperature cooling water flows out through the engine's water system and enters the high-temperature return water pipe. The high-temperature return water pipe is connected to valve c7, which controls the flow of cooling water. When valve c7 is opened, the high-temperature cooling water can smoothly enter the water pump b8, which is responsible for pumping cooling water out of the engine and promoting the circulation of cooling water in the system.

[0053] After the water pump b8 pressurizes the high-temperature cooling water, it is transported to other parts of the cooling system, such as a radiator or a cooling tower, through a pipeline for heat dissipation. In this process, the cooling water releases the heat it absorbs and the temperature gradually decreases. At the same time, a venting water pipe is also provided in the water system of the gas engine 21. The function of this water pipe is to discharge the gas in the water circuit to ensure that the cooling water can flow smoothly. The venting water pipe guides the discharged gas and water back to the high-level water tank 6.

[0054] The high-level water tank 6 is a water storage device in the cooling system. It is located at a higher position in the system and uses gravity to provide a stable water supply pressure for cooling water. When the venting water pipe returns gas and water to the high-level water tank, the water level in the water tank will rise accordingly. The high-level water tank also has an automatic water replenishment function. When the water level drops to a certain level, it will automatically replenish cooling water to ensure that there is sufficient water in the system.

[0055] In a possible implementation manner, the overflow pipe b23 is disposed on one side of the high-level water tank 6 .

[0056] In the specific application of the utility model, the high-level water tank 6 provides a stable water supply pressure for the entire cooling system through gravity. At the same time, the high-level water tank can also purify and buffer the water to a certain extent to ensure the cleanliness and stability of the cooling water. The overflow pipe b23 is located on one side of the high-level water tank and is connected to the inside of the water tank. When the water level in the high-level water tank exceeds the set value, the excess water will be automatically discharged through the overflow pipe b23, thereby preventing the water tank from overflowing due to overfilling or other safety problems.

[0057] Ensure the stable operation and safety of the cooling system. During the gas engine test, the cooling system will continuously circulate cooling water to remove the heat generated by the engine through components such as the radiator.

[0058] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0059] 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 variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

[0060] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. A cooling system for a gas engine test bench, characterized in that: Including high temperature water system and low temperature water system; The high-temperature water system comprises a valve a (1), a water storage tank (2), a valve b (3), a Y-type filter a (4), a water pump a (5), a high-level water tank (6), a valve c (7), a water pump b (8), a heat exchanger (9), a valve d (10), a valve e (11), a Y-type filter b (12), a cooling water tower (13), a gas engine (21), an overflow pipe a (22) and an overflow pipe b (23); The valve a (1) is connected to the water storage tank (2), the overflow pipe a (22) is arranged on one side of the water storage tank (2), and the water storage tank (2) is connected to the high-level water tank (6) via the valve b (3), the Y-type filter a (4), and the water pump a (5) in sequence; The low-temperature water system comprises a valve g (14), a valve h (15), a water storage tank (16), an electric valve (17), a water pump c (18), a valve f (19) and a Y-type filter c (20); The water storage tank (16) is connected to the Y-type filter c (20), the valve f (19), the water pump c (18) and the electric valve (17) in sequence through water pipes, and the water storage tank (16) is connected to the low-temperature water inlet of the gas engine (21).

2. A cooling system for a gas engine (21) test bench according to claim 1, characterized in that: The water outlet of the high-level water tank (6) is connected to the valve c (7), the water pump b (8) and the heat exchanger (9) in sequence, and one side of the heat exchanger (9) is connected to the cooling water tower (13).

3. A cooling system for a gas engine (21) test bench according to claim 1, characterized in that: The water outlet of the cooling water tower (13) is connected to the valve d (10), the heat exchanger (9), the valve e (11) and the Y-type filter b (12) in sequence, and the other side of the Y-type filter b (12) is connected to the gas engine (21).

4. A cooling system for a gas engine (21) test bench according to claim 1, characterized in that: The low-temperature water outlet of the gas engine (21) enters the cooling water tower (13) through valve g (14) in one way and returns to the water storage tank (16) through valve h (15) in the other way. The water in the water storage tank (16) is supplied by the cooling water tower (13).

5. A cooling system for a gas engine (21) test bench according to claim 1, characterized in that: The high-temperature return water pipe of the gas engine (21) is connected between the valve c (7) and the water pump b (8), and the venting water pipe of the water circuit of the gas engine (21) returns water to the high-level water tank (6).

6. A cooling system for a gas engine (21) test bench according to claim 1, characterized in that: The overflow pipe b (23) is arranged on one side of the high-level water tank (6).

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