1. The generator set is equipped with plate heat exchanger. The plate heat exchanger a is installed in the oil cooling system of the generator set. The high-temperature cooling oil flows into the plate heat exchanger from the A1 corner hole, the cold water enters the plate heat exchanger from the A3 corner hole, and after heat exchange, the low-temperature cooling oil flows back to the generator set from the A2 corner hole, and the warm water flows into the plate heat exchanger B from the A4 corner hole; Plate heat exchanger B is installed on the water cooling system of the generator set. The high-temperature cooling water flows into the plate heat exchanger from corner hole B1, exchanges heat with the warm water entering plate heat exchanger B, and then flows back to the generator set, and the hot water flows out from corner hole B4. After heat exchange, the temperature of normal temperature water entering from A3 corner hole and flowing out from B4 corner hole is 75 ~ 80 ℃.

2、供水管路設計。礦井高位水池通過閘閥12 向瓦斯發電機組冷卻水池供冷水，冷卻水池內冷水流向發電機組板式換熱器加熱，然后通過閘閥1 流入加裝保溫棉的保溫水箱內。在熱水使用低峰期可通過閘閥2、閘閥3流向冷卻水塔，對熱水冷卻降溫，然后循環使用。當保溫水箱內水溫降低時，可通過閘閥5 將低溫水回流到冷卻水池。正常用水時，關閉閘閥13，打開管道泵兩端閘閥，打開閘閥14 及水箱入口閘閥，使用綜合泵房內管道泵將保溫水箱內熱水排入澡堂水箱，供職工澡堂使用。當澡堂水箱內熱水溫度降低后，可通過閘閥13 將溫水回流到冷卻水池。

2. Water supply pipeline design. The mine high-level water tank supplies cold water to the gas generator unit cooling water tank through the gate valve 12. The cold water in the cooling water tank flows to the generator unit plate heat exchanger for heating, and then flows into the thermal insulation water tank equipped with thermal insulation cotton through the gate valve 1. During the low peak period of hot water use, it can flow to the cooling water tower through gate valve 2 and gate valve 3, cool the hot water, and then recycle it. When the water temperature in the insulation water tank decreases, the low-temperature water can be returned to the cooling water tank through the gate valve 5. When using water normally, close the gate valve 13, open the gate valves at both ends of the pipeline pump, open the gate valve 14 and the gate valve at the inlet of the water tank, and use the pipeline pump in the comprehensive pump house to discharge the hot water in the thermal insulation water tank into the bathhouse water tank for use by the staff bathhouse. When the hot water temperature in the bathhouse water tank decreases, the warm water can be returned to the cooling pool through the gate valve 13.

3、加裝自動控制。安裝溫控裝置對閘閥5 進行控制，在溫控開關上設置相應溫度，當水溫降低到設置溫度以下時閘閥5 打開，將冷水回流，重新通過余熱利用裝置加熱。在澡堂水箱內安裝水位控制裝置并設置水位，當水位降低到水位時，相應閘閥打開，管道泵起動，向澡堂水箱加水；當澡堂水箱水位達到水位時，相應閘閥關閉，管道泵停止運行。增加澡堂水箱溫控裝置，澡堂水箱水溫降低時，通過閘閥13、閘閥14、閘閥15 或閘閥16 將低溫水回流，重新經過余熱利用裝置加熱。通過加裝自動控制裝置，減少人工操作步驟，降低了人員投入和工人勞動強度。

3. Add automatic control. Install a temperature control device to control the gate valve 5. Set the corresponding temperature on the temperature control switch. When the water temperature drops below the set temperature, the gate valve 5 opens to return the cold water and heat it again through the waste heat utilization device. Install a water level control device in the bathhouse water tank and set the water level. When the water level drops to the minimum water level, the corresponding gate valve opens and the pipeline pump starts to add water to the bathhouse water tank; When the water level of the bathhouse water tank reaches the maximum water level, the corresponding gate valve is closed and the pipeline pump stops running. Add a temperature control device for the bath water tank. When the water temperature of the bath water tank decreases, the low-temperature water will be refluxed through gate valve 13, gate valve 14, gate valve 15 or gate valve 16 and heated again by the waste heat utilization device. Through the installation of automatic control device, the manual operation steps are reduced, and the personnel input and labor intensity are reduced.、

4、創造的效益。發電機組余熱利用系統正常運行后，該礦停止使用原有的2臺4t 燃煤蒸汽壓力鍋爐，每年可節約燃煤2000 t，每年可減少燃煤鍋爐維修費用、各種檢驗檢測費用。

4. Benefits created. After the waste heat utilization system of the generator set operates normally, the mine stops using the original two 4T coal-fired steam pressure boilers, which can save 2000 t of coal every year and reduce the maintenance cost and various inspection and testing costs of coal-fired boilers every year.

使用燃煤鍋爐排放大量硫化物等污染物，對環境造成污染。瓦斯發電機組余熱利用則為清潔能源，全程無污染物的排放，具有極高的環保效益。燃煤蒸汽鍋爐使用壓力容器，具有一定的爆炸危險性，余熱利用系統比原有的燃煤蒸汽壓力鍋爐更加安全。余熱利用系統安裝后，提升了發電機組冷卻系統的冷卻效果，延長了部分配件的使用壽命。

The use of coal-fired boilers releases a large number of sulfide and other pollutants, which pollutes the environment. The waste heat utilization of gas generator set is clean energy with no pollutant emission in the whole process, which has high environmental protection benefits. The coal-fired steam boiler uses pressure vessels, which has a certain explosion risk. The waste heat utilization system is safer and more efficient than the original coal-fired steam pressure boiler. After the installation of the waste heat utilization system, the cooling effect of the generator unit cooling system is improved and the service life of some accessories is prolonged.