Cooling device of waste gas power station
By connecting the high-temperature and low-temperature core groups in parallel with the horizontal multi-fan water tank and auxiliary cooling system, the problem of low heat dissipation efficiency in the abandoned gas power station under high-temperature environment is solved, and efficient cooling and stable operation of the generator set are achieved, thereby improving the power generation efficiency and equipment life.
Patent Information
- Application Number
- CN202423175870.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-23
- Publication Date
- 2025-10-14
- Estimated Expiration
- 2034-12-23
AI Technical Summary
The cooling devices of existing abandoned gas-fired power plants have low heat dissipation efficiency in high summer temperatures, causing the generator sets to overheat and requiring power generation to be reduced to protect the equipment, resulting in energy waste and reduced power generation.
A horizontal multi-fan water tank consisting of parallel high-temperature and low-temperature cores is combined with an auxiliary cooling system, including a pipeline pump, return and inlet water main lines, branch lines and wire braided hoses, to form a composite cooling cycle to enhance heat dissipation capacity. The oil circulation is formed through the oil cooler to prevent oil overheating.
Ensure that the generator set operates at full power in high temperature environments, improve power generation efficiency, reduce equipment wear, extend service life, and avoid energy waste.
Smart Images
Figure CN223434410U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of waste gas internal combustion engine power generation, in particular to a cooling device for a waste gas power station. Background Art
[0002] Waste gas, as a viable energy source, is in a stage of vigorous development. The number of projects using waste gas for power generation is increasing and gradually becoming popular. This power generation method can not only convert the originally waste energy into electricity to meet the electricity needs of production and life and reduce dependence on traditional energy, but also reduce the negative impact of waste gas on the environment to a certain extent. However, at present, waste gas power stations usually use a closed-loop cooling structure. In the hot summer season, this cooling structure often exposes serious problems. On the one hand, the ambient air temperature often exceeds the design temperature of the generator set, resulting in the radiator being unable to effectively dissipate the heat generated by the unit; on the other hand, the horizontal multi-fan radiator may cause poor air circulation due to improper installation position and other reasons, further reducing its heat dissipation efficiency and failing to meet the normal cooling requirements of the unit.
[0003] There is currently a lack of effective solutions to the above-mentioned defects. If the design of the generator oil cooler and the horizontal multi-fan radiator is to be changed, it will not only take a lot of time and effort, but also be basically not feasible in actual operation. Therefore, in high temperature seasons, in order to avoid equipment damage, measures such as reducing the power of the generator set are often the only option. Although this approach can protect the equipment to a certain extent, it causes a large amount of waste gas to be wasted, and also leads to a significant reduction in the power generation of the power station, seriously affecting the economic benefits and energy utilization efficiency of the power station. At this stage, a cooling device for a waste gas power station is needed. Utility Model Content
[0004] In order to solve the problem that the cooling device of the existing waste gas power station has obvious deficiencies under special working conditions such as high temperature in summer, the utility model provides a cooling device for the waste gas power station.
[0005] In a first aspect, the present invention provides a cooling device for a waste gas power station, which adopts the following technical solution:
[0006] A cooling device for an abandoned gas power station, comprising
[0007] The generator set and the auxiliary cooling system, wherein the water inlet and the water outlet of the generator set are both provided with a cylinder liner water interface flange, and the generator set is connected to the auxiliary cooling system through the cylinder liner water interface flange;
[0008] The auxiliary cooling system includes a first horizontal multi-fan water tank, a pipeline pump, a return water main line and a water inlet main line. The return water main line and the water inlet main line are respectively provided with multiple return water branch lines and water inlet branch lines. The return water branch line and the water inlet branch line are connected to the water outlet and water inlet of the generator set through the cylinder liner water interface flange. The generator set has a built-in second horizontal multi-fan water tank, and the second horizontal multi-fan water tank is connected to the return water branch line and the water inlet branch line through the cylinder liner water interface flange.
[0009] Furthermore, the first horizontal multi-fan water tank includes a high-temperature core group and a low-temperature core group, and the high-temperature core group and the low-temperature core group are connected in parallel. One outlet flange of the first horizontal multi-fan water tank is connected to one end of the water inlet main line, and the other outlet flange of the first horizontal multi-fan water tank is connected to one end of the return water main line.
[0010] Furthermore, the low-temperature core group of the second horizontal multi-fan water tank is connected to the water inlet branch line through the cylinder liner water interface flange, and the high-temperature core group of the second horizontal multi-fan water tank is connected to the return water branch line through the cylinder liner water interface flange.
[0011] Furthermore, a branch gate valve is provided at the connection between the cylinder liner water interface flange and the return branch line and the water inlet branch line, and the branch gate valve is connected to the cylinder liner water interface flange through a steel wire braided hose.
[0012] Furthermore, the steel wire braided hose is composed of an inner rubber layer and an outer steel wire braided layer.
[0013] Furthermore, the generator set also includes a low-temperature water pump and a high-temperature water pump, which are respectively connected to the low-temperature core group and the high-temperature core group of the second horizontal multi-fan water tank.
[0014] Furthermore, the engine oil in the engine block flows out from the oil pan, passes through an oil cooler connected to the oil pan, the engine block and the cylinder head for cooling, and finally flows back to the oil pan to form an oil circulation.
[0015] Furthermore, the return water main line and the inlet water main line are both provided with ordinary pressure gauges and bimetallic thermometers.
[0016] Furthermore, a Y-type filter and a water inlet gate valve are sequentially provided on the water inlet main line between the pipeline pump and the first horizontal multi-fan water tank.
[0017] Furthermore, a check valve is provided on the water inlet main line between the pipeline pump and the water inlet branch line.
[0018] In summary, the present invention has the following beneficial technical effects:
[0019] 1. The utility model connects the high-temperature core group and the low-temperature core group of the first horizontal multi-fan water tank in parallel, thereby increasing the heat dissipation area. It works in conjunction with the second horizontal multi-fan water tank built into the generator set, effectively reducing the temperature of the generator set and ensuring that the generator set can operate at full power even in a high-temperature environment, avoiding the reduction in power generation caused by the need to reduce power operation due to overheating, and improving power generation efficiency.
[0020] 2. The engine oil in the engine unit of the present invention flows out from the oil pan, is cooled by the oil cooler, and then flows back to the oil pan to form a cycle. The cooling system effectively controls the temperature of the generator set, ensuring that the oil operates within a suitable temperature range, reducing wear between engine components, especially in key areas such as the cylinder wall and piston rings, preventing viscosity reduction and poor lubrication due to overheating of the oil, thereby extending the service life of the engine.
[0021] 3. The utility model adopts a Y-type filter to prevent solid particles from entering pumps, valves, instruments and other equipment. It is easy to disassemble and clean, which can effectively protect key equipment in the system and facilitate regular maintenance.
[0022] 4. The wire braided hose in the utility model is composed of an inner rubber layer and an outer steel wire braided layer, which can not only absorb vibrations in the piping system and reduce damage to the system caused by vibrations, but also facilitate installation and replacement. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 It is a schematic diagram of the overall structural connection of a cooling device for a waste gas power station according to an embodiment of the utility model.
[0024] Figure 2 The present invention is a schematic diagram of the structural connection of a generator set in a cooling device of a waste gas power station according to an embodiment of the present invention.
[0025] Figure 3 It is a structural connection diagram of an auxiliary cooling system in a cooling device of a waste gas power station according to an embodiment of the present utility model.
[0026] Figure 4 It is a schematic diagram of the connection between the auxiliary cooling system and the generator set in an embodiment of the present utility model.
[0027] Figure 5 It is a schematic diagram of the overall operation flow of an embodiment of the present utility model.
[0028] Wherein, 1, the first horizontal multi-fan water tank; 2, water inlet gate valve; 3, Y filter; 4, pipeline pump; 5, rubber joint; 6, check valve; 7, water outlet gate valve; 8, ordinary pressure gauge; 9, bimetallic thermometer; 10, backwater gate valve; 11, backwater main pipeline; 12, water inlet main pipeline; 13, water inlet branch pipeline; 14, backwater branch pipeline; 15, branch gate valve; 16, steel wire braided hose. DETAILED DESCRIPTION
[0029] The utility model will be made further detailed description in combination with the drawings.
[0030] Example 1
[0031] Reference Figure 1 The cooling device of the waste gas power station of the embodiment comprises:
[0032] The generator set and the auxiliary cooling system are provided with cylinder liner water interface flanges at the water inlet and the water outlet of the generator set, and the generator set is connected to the auxiliary cooling system through the cylinder liner water interface flanges.
[0033] The auxiliary cooling system comprises a first horizontal multi-fan water tank, a pipeline pump, a backwater main pipeline and a water inlet main pipeline, a plurality of backwater branch pipelines and water inlet branch pipelines are respectively arranged on the pipelines of the backwater main pipeline and the water inlet main pipeline, the backwater branch pipelines and the water inlet branch pipelines are connected to the water outlet and the water inlet of the generator set through the cylinder liner water interface flanges, a second horizontal multi-fan water tank is arranged in the generator set, and the second horizontal multi-fan water tank is connected to the backwater branch pipelines and the water inlet branch pipelines through the cylinder liner water interface flanges.
[0034] Specifically,
[0035] As shown in Figure 1 , Figure 5 First, four generator sets are prepared, and each generator set is equipped with a second horizontal multi-fan water tank, the water tank comprises a high-temperature core group, a low-temperature core group, a high-temperature water pump, a low-temperature water pump, a cylinder liner water interface flange and other components, and then the components required by the auxiliary cooling system are prepared, including a first horizontal multi-fan water tank 1, a pipeline pump 4, a rubber joint 5, a backwater main pipeline 11, a water inlet main pipeline 12, a backwater branch pipeline 14, a water inlet branch pipeline 13, a branch gate valve 15, a steel wire braided hose 16, an ordinary pressure gauge 8, a bimetallic thermometer 9, a Y filter 3, a water inlet gate valve 2 and a check valve 6.
[0036] As shown in Figure 3As shown, one outlet flange of the first horizontal multi-fan water tank 1 is welded to one end of the water inlet main line 12, ensuring a secure and airtight connection. On the water inlet main line 12, starting near the end of the first horizontal multi-fan water tank 1, the water inlet gate valve 2 and Y-type filter 3 are installed in sequence. Then, the pipeline pump 4 is connected to the water inlet main line 12. A check valve 6 is installed on the water inlet main line 12 before the branch point between the pipeline pump 4 and the water inlet branch line 13. The other outlet flange of the first horizontal multi-fan water tank 1 is welded to one end of the return water main line 11. A standard pressure gauge 8 and a bimetallic thermometer 9 are installed on the return water main line 11 to monitor the pressure and temperature of the return water.
[0037] The four water inlet branch lines 13 are respectively welded vertically to the water inlet main line 12. A branch gate valve 15 is first installed at the connection end of each water inlet branch line 13 and the generator set. Then, the branch gate valve 15 is connected to the second cylinder liner water interface flange of the generator set through a steel wire braided hose 16. The inner rubber layer of the steel wire braided hose 16 fits tightly with the interface, and the outer steel wire braided layer plays a role in protecting and enhancing the stability of the connection.
[0038] Similarly, the four return water branch lines 14 are vertically welded to the return water main line 11, and a branch gate valve 15 is first installed at the connection end of each return water branch line 14 and the generator set, and then the branch gate valve 15 is connected to the first cylinder water interface flange of the generator set through a steel wire braided hose 16.
[0039] like Figure 2 As shown, inside the generator set, ensure that the low-temperature water pump is well connected to the low-temperature core group of the second horizontal multi-fan water tank, and the high-temperature water pump is correctly connected to the high-temperature core group, so that the coolant can circulate normally inside the generator set, and connect the oil cooler to the oil pan, the engine body and the cylinder head in accordance with the design requirements to form a complete oil circulation path, ensuring that the oil can flow out of the oil pan and flow back to the oil pan after cooling to lubricate and cool the key components of the engine. After completing the system connection, add antifreeze to the first horizontal multi-fan water tank 1, the water inlet main line 12, the return main line 11, the wire braided hose 16 and all branch lines until the entire system is filled with antifreeze and no bubbles are present.
[0040] like Figure 4 As shown, all eight branch pipe gate valves 15 are closed to temporarily isolate the auxiliary cooling system from the coolant circulation of the generator set, the outlet gate valve 7 (located on the water inlet main line 12 after the pipeline pump 4 and before the water inlet branch line 13 branches off) is closed, and the water inlet gate valve 2 and the return water gate valve 10 are all opened. At this time, the generator set only relies on its own second horizontal multi-fan water tank for a separate cooling cycle. The coolant flows normally in the high-temperature cooling circulation system and the low-temperature cooling circulation system inside the generator set, and heat is dissipated through the heat dissipation core group and fan of the built-in water tank.
[0041] When high summer temperatures arrive and the generator set's built-in second horizontal multi-fan water tank's cooling capacity is insufficient, causing the oil pan temperature to rise to or above 85°C, pipeline pump 4 is activated, providing power for the antifreeze circulation, causing the antifreeze to begin flowing through the inlet main line 12. The outlet gate valve 7 is gradually opened, and the standard pressure gauge 8 on the inlet main line 12 is closely monitored. As the outlet gate valve 7 opens, the pipeline pressure gradually rises. When the pipeline pressure reaches approximately 200 kPa, the branch pipe gate valves 15 are gradually opened, allowing the newly added antifreeze to begin to participate in the generator set's high-temperature cooling circulation system. At this time, the antifreeze in the high-temperature cooling circulation system is partially dissipated by the generator set's built-in second horizontal multi-fan water tank, and the remaining part is dissipated by the first horizontal multi-fan water tank 1 in the auxiliary cooling system, thereby increasing the cooling air volume and effectively enhancing the cooling effect.
[0042] During operation of the auxiliary cooling system, the pressure and flow rate of the antifreeze fluid in the pipeline can be adjusted by adjusting the operating parameters (such as the speed) of the inlet and return water valves 2, 10, branch valves 15, and pipeline pump 4. Focus on the inlet and return water temperatures measured by the bimetallic thermometer 9, as well as the generator set's sump oil temperature. Based on temperature fluctuations, the openings of the various valves are precisely adjusted to ensure that the sump oil temperature steadily decreases and remains below 85°C, allowing the power station to operate at full power. For example, if the sump oil temperature remains high, the speed of pipeline pump 4 can be appropriately increased or the branch valve 15 can be further opened to increase the coolant flow rate. If the temperature drops too rapidly, the openings of the relevant valves can be appropriately reduced or the speed of pipeline pump 4 can be reduced to maintain stable system operation.
[0043] When temperatures are moderate, the generator set's built-in second horizontal multi-fan water tank's heat dissipation capacity is sufficient to meet cooling needs. Pipeline pump 4 is shut down, ceasing its action on the antifreeze solution. Then, the eight branch pipe gate valves 15 are closed sequentially, completely severing the connection between the auxiliary cooling system and the generator set, allowing the generator set to resume independent operation. At this point, the generator set relies solely on its own cooling system for coolant circulation and heat dissipation, reducing energy consumption and equipment wear associated with the auxiliary cooling system.
[0044] Through the above specific implementation methods, the cooling system of the waste gas power station can operate stably and efficiently under different ambient temperatures, achieve effective cooling of the generator set, and ensure normal power generation of the power station and long-term stable operation of the equipment.
[0045] The above are all preferred embodiments of the present invention, and are not intended to limit the scope of protection of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the scope of protection of the present invention.
Claims
1. A cooling device for an abandoned gas power station, characterized in that: include: The generator set and the auxiliary cooling system, wherein the water inlet and the water outlet of the generator set are both provided with a cylinder jacket water interface flange, and the generator set is connected to the auxiliary cooling system via the cylinder jacket water interface flange; The auxiliary cooling system includes a first horizontal multi-fan water tank, a pipeline pump, a return water main line and a water inlet main line. The return water main line and the water inlet main line are respectively provided with multiple return water branch lines and water inlet branch lines. The return water branch line and the water inlet branch line are connected to the water outlet and water inlet of the generator set through the cylinder liner water interface flange. The generator set has a built-in second horizontal multi-fan water tank, and the second horizontal multi-fan water tank is connected to the return water branch line and the water inlet branch line through the cylinder liner water interface flange.
2. The cooling device for a waste gas power station according to claim 1, characterized in that: The first horizontal multi-fan water tank includes a high-temperature core group and a low-temperature core group, which are connected in parallel. One outlet flange of the first horizontal multi-fan water tank is connected to one end of the water inlet main line, and the other outlet flange of the first horizontal multi-fan water tank is connected to one end of the return water main line.
3. The cooling device for a waste gas power station according to claim 2, characterized in that: The low-temperature core group of the second horizontal multi-fan water tank is connected to the water inlet branch line through the cylinder liner water interface flange, and the high-temperature core group of the second horizontal multi-fan water tank is connected to the return water branch line through the cylinder liner water interface flange.
4. The cooling device for a waste gas power station according to claim 3, characterized in that: A branch gate valve is provided at the connection between the cylinder liner water interface flange and the return branch line and the water inlet branch line. The branch gate valve is connected to the cylinder liner water interface flange through a steel wire braided hose.
5. The cooling device for a waste gas power station according to claim 4, characterized in that: The steel wire braided hose consists of an inner rubber layer and an outer steel wire braided layer.
6. The cooling device for a waste gas power station according to claim 5, characterized in that: The generator set further includes a low-temperature water pump and a high-temperature water pump, which are respectively connected to the low-temperature core group and the high-temperature core group of the second horizontal multi-fan water tank.
7. The cooling device for a waste gas power station according to claim 6, characterized in that: The engine oil in the generator set flows out from the oil pan, passes through an oil cooler connected to the oil pan, the engine body and the cylinder head for cooling, and finally flows back to the oil pan to form an oil circulation.
8. The cooling device for a waste gas power station according to claim 7, characterized in that: The return water main line and the inlet water main line are both provided with ordinary pressure gauges and bimetallic thermometers.
9. The cooling device for a waste gas power station according to claim 8, characterized in that: A Y-type filter and a water inlet gate valve are sequentially arranged on the water inlet main line between the pipeline pump and the first horizontal multi-fan water tank.
10. The cooling device for a waste gas power station according to claim 9, characterized in that: A check valve is provided on the water inlet main line between the pipeline pump and the water inlet branch line.