Heating system for emergency diesel engine maintenance

Abstract

The utility model discloses a heating system for emergency maintenance of a diesel engine. The heating system comprises a storage tank for storing lubricating oil or cooling water, a heating device for heating the storage tank, and a conveying pipeline for conveying the lubricating oil or the cooling water into or out of the storage tank, the heating device comprises an electric heating cable; the electric heating cable is uniformly wound on the periphery of the storage tank; the conveying pipeline comprises a driving pump, a conveying pipeline body and an inlet and outlet pipe, the driving pump is arranged on the conveying pipeline body, the first end of the conveying pipeline body is connected with the storage tank, and the inlet and outlet pipe is connected with the second end of the conveying pipeline body. The storage tank, the heating device and the conveying pipeline are arranged in a matched mode, the stability of discharging and feeding of lubricating oil and cooling water of the emergency diesel engine is guaranteed, the lubricating oil and the cooling water are kept at the optimal working temperature, the emergency diesel engine set can rapidly enter the optimal working condition after being overhauled, and safe production of a power plant is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of emergency diesel engine maintenance technology, and in particular to a heating system for emergency diesel engine maintenance. Background Technology

[0002] To ensure the safe operation of power plants, emergency diesel engines must be in standby mode at all times. Therefore, routine maintenance and upkeep are crucial for maintaining their optimal operating condition. The discharge, inflow, and temperature of lubricating oil and cooling water are important factors affecting the quality and efficiency of emergency diesel engine maintenance.

[0003] Excessive lubrication of lubricating oil can lead to insufficient lubrication in certain machine parts or the removal of impurities, causing blockages. Slow drainage, on the other hand, affects maintenance efficiency and results in old oil residue. High operating temperatures of lubricating oil reduce its lubricating performance and accelerate oxidation, while low temperatures reduce its fluidity, leading to insufficient lubrication and potential starting difficulties. Rapid cooling water drainage poses a risk of thermal shock to components and may allow air to enter the cooling system, affecting heat dissipation efficiency; slow drainage reduces maintenance efficiency and introduces impurities. Coolant temperature affects heat exchange efficiency and engine cooling capacity.

[0004] Therefore, in order to improve the maintenance quality and repair efficiency of emergency diesel engines, it is necessary to design a device to control the discharge, inflow and temperature of lubricating oil and cooling water. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a heating system for emergency diesel engine maintenance.

[0006] The technical solution adopted by this utility model to solve its technical problem is: to provide a heating system for emergency diesel engine maintenance, including a storage tank for storing lubricating oil or cooling water, a heating device for heating the storage tank, and a conveying pipeline for sending lubricating oil or cooling water into or out of the storage tank.

[0007] The heating device includes an electric heating cable, which is uniformly wrapped around the outer periphery of the storage tank.

[0008] The delivery pipeline includes a drive pump, a delivery pipe, and inlet and outlet pipes. The drive pump is installed on the delivery pipe. The first end of the delivery pipe is connected to the storage tank, and the inlet and outlet pipes are connected to the second end of the delivery pipe.

[0009] In some embodiments, the delivery pipeline further includes a switching valve and a first check valve;

[0010] The switching valve and the first check valve are respectively located at the second end of the conveying pipeline, and the inlet and outlet pipes are connected to the conveying pipeline through the switching valve and the first check valve.

[0011] In some embodiments, the drive pump is a self-priming pump.

[0012] In some embodiments, the emergency diesel engine maintenance heating system further includes an insulation layer covering the outside of the storage tank.

[0013] In some embodiments, the emergency diesel engine maintenance heating system further includes a circulation pipeline connected to the storage tank, which drives lubricating oil or cooling water to circulate in and out of the storage tank.

[0014] In some embodiments, the circulation pipeline includes a circulation pipe, a circulation pump, and a heater; the opposite ends of the circulation pipe are respectively connected to different sides of the storage tank, and the circulation pump and the heater are respectively disposed on the circulation pipe.

[0015] In some embodiments, the circulation pipeline further includes a flow valve disposed on the circulation pipeline.

[0016] In some embodiments, the circulation pipeline further includes an outlet pipe, which is connected to the circulation pipeline via a three-way valve, and a second check valve is provided between the three-way valve and the outlet pipe.

[0017] In some embodiments, the heating system for emergency diesel engine maintenance further includes a pressure relief valve disposed on the storage tank.

[0018] In some embodiments, the emergency diesel engine maintenance heating system further includes a support base disposed below the storage tank.

[0019] The beneficial effects of this utility model are as follows: by coordinating the storage tank, heating device and conveying pipeline, the stability of the discharge and inflow of lubricating oil and cooling water of the emergency diesel engine is ensured, and the lubricating oil and cooling water are kept at the optimal working temperature, so that the emergency diesel engine unit can quickly enter the optimal working condition after maintenance, thus ensuring the safe production of the power plant. Attached Figure Description

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments. In the accompanying drawings:

[0021] Figure 1 This is a schematic diagram of the structure of an emergency diesel engine repair heating system according to an embodiment of the present invention at one angle;

[0022] Figure 2 This is a schematic diagram of the structure of an emergency diesel engine maintenance heating system according to an embodiment of the present invention from another angle. Detailed Implementation

[0023] To provide a clearer understanding of the technical features, objectives, and effects of this utility model, the specific embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0024] like Figures 1-2 As shown, an emergency diesel engine maintenance heating system according to an embodiment of the present invention includes a storage tank 100, a heating device, and a delivery pipeline 20.

[0025] The storage tank 100 is a sealed container used to store lubricating oil or cooling water, and its volume can be selected and set according to actual needs. A heating device is installed on the storage tank 100 to heat the tank, thereby heating the lubricating oil or cooling water inside. A delivery pipeline 20 is connected to the storage tank 100 to deliver or discharge lubricating oil or cooling water into or out of the storage tank 100.

[0026] The storage tank 100 is also equipped with a pressure relief valve 110. When the internal pressure of the storage tank 100 reaches the pressure relief threshold, the pressure relief valve 110 automatically opens to release pressure. The pressure relief valve 110 is preferably located on the upward-facing surface of the storage tank 100; for example, when the storage tank 100 is... Figure 1 When the tank is laid horizontally, the pressure relief valve 110 is located on the upward-facing side of the storage tank 100. When the storage tank 100 is cubic, the pressure relief valve 110 is located on the upward-facing end face of the storage tank 100.

[0027] In one embodiment, the storage tank 100 may also be provided with an observation window 120, which allows staff to observe the internal conditions of the storage tank 100 through the observation window 120.

[0028] In one embodiment, the storage tank 100 is further provided with a temperature detection unit 130 for detecting the temperature of the lubricating oil or cooling water inside the storage tank 100. The temperature detection unit 130 may include a temperature probe, a thermocouple, or a temperature gauge.

[0029] The heating device includes an electric heating cable 10, which is uniformly wrapped around the outer circumference of the storage tank 100. Because the heating device has a high power, direct contact between the lubricating oil and the heating device would cause the temperature at the contact point to rise rapidly, exceeding the suitable operating range of the lubricating oil. This would reduce the viscosity of the lubricating oil, and it might even boil and evaporate, leading to oxidation and decomposition reactions and additive failure, causing safety hazards and wasting lubricating oil. In this invention, the electric heating cable 10 is placed outside the storage tank 100, isolating it from the lubricating oil or cooling water inside the tank 100. When the electric heating cable 10 is energized, the heat energy is absorbed by the storage tank 100, causing the temperature of the storage tank 100 to rise uniformly. The heat is then transferred to the lubricating oil or cooling water through the storage tank 100, thus avoiding the safety hazards of direct contact with the lubricating oil.

[0030] In addition, the heating device is located outside the storage tank 100, which increases the thermal resistance. The heat energy of the heating device is absorbed by the storage tank 100, and the temperature of the storage tank 100 rises evenly, avoiding the safety problems caused by the local temperature rising too quickly due to the dry burning of traditional heaters.

[0031] In one embodiment, the heating system for emergency diesel engine maintenance further includes an insulation layer 140, which covers the outside of the storage tank 100 and the outside of the electric heating cable 10, serving to insulate and reduce heat loss. The insulation layer 140 can be formed using insulation materials such as insulation cotton.

[0032] The delivery pipeline 20 may include a drive pump 22, a delivery pipe 21, and inlet / outlet pipes 23. The drive pump 22 is mounted on the delivery pipe 21; the delivery pipe 21 has a first end and a second end, the first end of the delivery pipe 21 is connected to the storage tank 100, and the second end of the delivery pipe 21 is connected to the inlet / outlet pipes 23. The inlet / outlet pipes 23 serve as the connectors of the delivery pipeline 20 and are used to connect to the emergency diesel engine. Driven by the drive pump 22, lubricating oil or cooling water in the storage tank 100 enters the delivery pipe 21 and flows along the delivery pipe 21 and the inlet / outlet pipes 23 into the emergency diesel engine.

[0033] The drive pump 22 is preferably a self-priming pump. When the self-priming pump pumps water (oil), it can control the optimal flow rate and remove air from the cooling water (lubricating oil), thus preventing air from entering the emergency diesel engine system and affecting engine performance.

[0034] The inlet and outlet pipes 23 are equipped with flanges at the ends away from the conveying pipes 21. They are connected to the emergency diesel engine through the flanges. The lubricating oil or cooling water is discharged in a fully sealed manner, avoiding the risk of foreign matter mixing in and deterioration during the maintenance process. The lubricating oil or cooling water can be reused, saving costs.

[0035] The conveying pipeline 20 also includes a switch valve 24 and a first check valve 25; the switch valve 24 and the first check valve 25 are respectively located at the second end of the conveying pipeline 21, so that the inlet and outlet pipes 23 are connected to the conveying pipeline 21 through the switch valve 24 and the first check valve 25. The switch valve 24 is used to control the opening and closing of the conveying pipeline 21, and can be operated manually or electrically. The first check valve 25 is used to restrict the backflow of the conveyed fluid.

[0036] In one embodiment, the heating system for emergency diesel engine maintenance further includes a circulation pipe 30, which is connected to a storage tank 100 to drive lubricating oil or cooling water to circulate in and out of the storage tank 100, so as to keep the lubricating oil or cooling water uniform and at a uniform temperature.

[0037] The circulation pipeline 30 may include a circulation pipe 31, a circulation pump 32, and a heater 33. The two ends of the circulation pipe 31 are respectively connected to different sides of the storage tank 100, and the circulation pump 32 and the heater 33 are respectively installed on the circulation pipe 31. The circulation pump 32 provides power to drive the lubricating oil or cooling water in the storage tank 100 into the circulation pipe 31, flow along the circulation pipe 31 and through the heater 33, and finally return to the storage tank 100.

[0038] Heater 33 is installed on part or all of the circulation pipe 31 to heat the lubricating oil or cooling water passing through. When heater 33 is turned on, it heats the lubricating oil or cooling water as it circulates between storage tank 100 and circulation pipe 30, thus preventing uneven temperature distribution when the volume of lubricating oil or cooling water is large, and maintaining the overall temperature uniformity and optimal operating conditions of the lubricating oil or cooling water.

[0039] The heater 33 includes a junction box 331 and a heating element 332 electrically connected to the junction box 331. The heating element 332 is tubular or sleeve-shaped and is fitted around the outer periphery of the circulation pipe 31; or the heating element 332 is an electric heating cable wrapped around the outer periphery of the circulation pipe 31. The junction box 331 can be positioned on one side of the heating element 332; the junction box 331 is used to connect an external power source to energize the heating element 332 and generate heat.

[0040] The circulation pipeline 30 also includes a flow valve 34 installed on the circulation pipeline 31 for controlling the flow rate of the fluid in the circulation pipeline 31.

[0041] A switch control valve 35 can also be installed on the circulation pipe 31 to control the on / off state of the circulation pipe 31. Figure 2 In the illustrated embodiment, the switch control valve 35 is located on the inlet side of the circulation pump 32 on the circulation pipeline 31.

[0042] As needed, the circulation pipeline 30 may also include an outlet pipe 36, which is connected to the circulation pipeline 31 via a three-way valve. A second check valve 37 is provided between the three-way valve and the outlet pipe 36. The outlet pipe 36 can be used to empty the storage tank 100 or to drain water during cleaning of the storage tank 100.

[0043] It is understood that the outlet pipe 36 can also be installed independently of the circulation pipe 30 on the storage tank 100, and the liquid in the storage tank 100 can be discharged through the outlet pipe 36 by a pump, including discharging lubricating oil or cooling water from the storage tank 100 back to the emergency diesel engine, or draining water when the storage tank 100 is being cleaned.

[0044] In one embodiment, the heating system for emergency diesel engine maintenance also includes a support base 40, which is disposed below the storage tank 100 to support the storage tank 100. The storage tank 100 is positioned on the ground or other locations by means of the support base 40.

[0045] by Figure 1 Taking the cylindrical tank 100 shown as an example, the tank 100 can be placed vertically or horizontally.

[0046] When the storage tank is 100 Figure 1 and Figure 2 When placed horizontally as shown, the support base 40 is installed on the downward-facing side of the storage tank 100, and the storage tank 100 is horizontally positioned on the ground by the support base 40. The delivery pipe 21 of the delivery pipeline 20 and the circulation pipe 31 of the circulation pipeline 30 can extend laterally along the side of the storage tank 100 and pass through the support base 40. The support base 40 provides support and positioning for the delivery pipe 21 and the circulation pipe 31. The drive pump 22 and the circulation pump 32 can be installed and positioned on the support base 40.

[0047] When the storage tank 100 is placed vertically, the support base 40 is installed at the bottom of the storage tank 100, and the storage tank 100 is positioned vertically on the ground by the support base 40. The conveying pipe 21 of the conveying pipeline 20 and the circulation pipe 31 of the circulation pipeline 30 can extend vertically along the side of the storage tank 100, and are positioned on the side of the storage tank 100 by supports such as brackets. The drive pump 22 and the circulation pump 32 can be installed and positioned on the support base 40 or the bracket.

[0048] The emergency diesel engine maintenance heating system of this utility model may also include a control box 50. Electrical control devices such as the drive pump 22, circulation pump 32, heating device, and heater 33 are connected to the control box 50, and the control box 50 controls the start / stop and operating mode of the aforementioned electrical control devices.

[0049] When using the heating system for emergency diesel engine maintenance of this utility model, the heating device can be started first to preheat the storage tank 100. When the lubricating oil or cooling water discharged from the emergency diesel engine is transported into the storage tank 100, the oil / water temperature will not drop or will drop only slightly, reducing the heating time for the lubricating oil or cooling water and improving maintenance efficiency. After the emergency diesel engine has completed maintenance, the lubricating oil or cooling water is discharged from the storage tank 100 and returned to the emergency diesel engine.

[0050] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A heating system for emergency diesel engine maintenance, characterized in that, It includes a storage tank for storing lubricating oil or cooling water, a heating device for heating the storage tank, and a delivery pipeline for sending lubricating oil or cooling water into or out of the storage tank. The heating device includes an electric heating cable, which is uniformly wrapped around the outer periphery of the storage tank. The delivery pipeline includes a drive pump, a delivery pipe, and inlet and outlet pipes. The drive pump is installed on the delivery pipe. The first end of the delivery pipe is connected to the storage tank, and the inlet and outlet pipes are connected to the second end of the delivery pipe.

2. The heating system for emergency diesel engine maintenance according to claim 1, characterized in that, The delivery pipeline also includes a switching valve and a first check valve; The switching valve and the first check valve are respectively located at the second end of the conveying pipeline, and the inlet and outlet pipes are connected to the conveying pipeline through the switching valve and the first check valve.

3. The heating system for emergency diesel engine maintenance according to claim 1, characterized in that, The drive pump is a self-priming pump.

4. The heating system for emergency diesel engine maintenance according to claim 1, characterized in that, The emergency diesel engine maintenance heating system also includes an insulation layer covering the outside of the storage tank.

5. The heating system for emergency diesel engine maintenance according to claim 1, characterized in that, The emergency diesel engine maintenance heating system also includes a circulation pipeline connected to the storage tank, which drives lubricating oil or cooling water to circulate in and out of the storage tank.

6. The heating system for emergency diesel engine maintenance according to claim 5, characterized in that, The circulation pipeline includes a circulation pipe, a circulation pump, and a heater; the two ends of the circulation pipe are respectively connected to different sides of the storage tank, and the circulation pump and the heater are respectively installed on the circulation pipe.

7. The heating system for emergency diesel engine maintenance according to claim 6, characterized in that, The circulation pipeline also includes a flow valve installed on the circulation pipeline.

8. The heating system for emergency diesel engine maintenance according to claim 6, characterized in that, The circulation pipeline also includes an outlet pipe, which is connected to the circulation pipeline via a three-way valve. A second check valve is provided between the three-way valve and the outlet pipe.

9. The heating system for emergency diesel engine maintenance according to any one of claims 1-8, characterized in that, The emergency diesel engine maintenance heating system also includes a pressure relief valve, which is installed on the storage tank.

10. The heating system for emergency diesel engine maintenance according to any one of claims 1-8, characterized in that, The emergency diesel engine maintenance heating system also includes a support base, which is located below the storage tank.

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