Fire protection structure of heat conduction oil pump
By installing an explosion-proof point-type infrared flame detector and a sprinkler system at the thermal oil pump, combined with the control system, the open flame of the thermal oil pump can be monitored and extinguished in a timely manner, solving the problems of easy combustion and leakage of the thermal oil pump, and improving fire safety and operator safety.
Patent Information
- Application Number
- CN202423212881.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-25
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2034-12-25
AI Technical Summary
Existing thermal oil pumps are prone to combustion in high-temperature environments, and the bearing connections are easily damaged, leading to leaks and potential fires. Existing fire protection systems are unable to effectively monitor and extinguish fires in a timely manner.
An explosion-proof point-type infrared flame detector is used to monitor whether there is an open flame at the heat transfer oil pump. The power is cut off through the DCS or PLC control system, and nitrogen gas is sprayed to extinguish the fire in combination with the sprinkler head and solenoid valve, forming an interlocking mechanism to ensure timely fire extinguishing.
It enables effective monitoring and timely extinguishing of open flames at the heat transfer oil pump, preventing the fire from spreading, improving fire safety, and ensuring the safety of operators.
Smart Images

Figure CN223731982U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of heat transfer oil heating. Specifically, this utility model relates to a fire protection structure for a heat transfer oil pump. Background Technology
[0002] During the heating process of the reactor, high-temperature heat transfer oil is usually used to heat the main unit. The heated heat transfer oil is then transported to pipelines and reactors for further heating via a heat transfer oil pump. The heat transfer oil is heated to a high temperature and is in an atomized state, making it prone to combustion when exposed to an open flame. During the high-speed rotation of the heat transfer oil pump, the soft rubber hexagonal block at the bearing connection between the heat transfer oil motor and the heat transfer oil pump is easily damaged by the high temperature, causing slight leakage of the heat transfer oil pump oil seal. When the ambient temperature around the heat transfer oil pump is abnormally high, it can easily cause a fire in the surrounding equipment.
[0003] To address the aforementioned issues, patent document 107485810A discloses an automatic heat transfer oil temperature control device, comprising a frame, a fire-fighting pipe, an electric pump, a fire-fighting liquid tank, a spray pipe, a return pipe, an intermediate pipe, a heater, a temperature control switch, a hot oil pump, and a solenoid valve. The spray pipe is housed inside the frame, with a fire-fighting pipe mounted on its upper end. An electric pump is installed on the fire-fighting pipe, and both the electric pump and the fire-fighting pipe are located inside the frame. A fire-fighting liquid tank is installed at the upper end of the frame, and the fire-fighting pipe passes through the frame and connects to the fire-fighting liquid tank. This design improves the timeliness of fire suppression. A heater, a temperature control switch, and a hot oil pump are installed on the intermediate pipe, and a return pipe is mounted at the lower end of the intermediate pipe. A solenoid valve is installed on the return pipe, and both the solenoid valve and the return pipe are located on the right side of the hot oil pump. This design enables heating detection and temperature control, improving the heating effect, but it cannot solve the aforementioned problems. Utility Model Content
[0004] This utility model is designed to solve the aforementioned problems. Its purpose is to provide a fire protection structure for a heat transfer oil pump that can conveniently and effectively monitor for open flames at the pump, extinguish fires promptly, and improve fire safety. To achieve this objective, the technical solution adopted by this utility model is as follows:
[0005] This utility model provides a fire protection structure for a thermal oil pump, which includes a detection component and a fire protection component. The detection component is disposed between the thermal oil pump and the thermal oil motor, and the detection component is connected to the fire protection component.
[0006] The fire protection structure for the heat transfer oil pump provided by this utility model may also have the following feature: the detection component includes an explosion-proof point infrared flame detector, which is located between the heat transfer oil pump and the heat transfer oil motor.
[0007] The fire protection structure for the thermal oil pump provided by this utility model may also include a thermal oil pump electrical cabinet, which is connected to the detection component and the fire protection component.
[0008] The fire protection structure for the thermal oil pump provided by this utility model may also have the following features: the fire protection components include a sprinkler head, a solenoid valve, a sprinkler pipe, and a nitrogen cylinder. One end of the sprinkler pipe is connected to the sprinkler head, and the other end of the sprinkler pipe is connected to the nitrogen cylinder. The solenoid valve is connected to the sprinkler head and the solenoid valve is connected to the thermal oil pump electrical cabinet.
[0009] The fire protection structure for the thermal oil pump provided by this utility model may also have the following feature: a DCS control system or a PLC control system is provided between the thermal oil pump electrical cabinet and the thermal oil motor.
[0010] The fire protection structure for the heat transfer oil pump provided by this utility model may also have the following features: a first interlock is formed between the explosion-proof point infrared flame detector and the heat transfer oil motor; a second interlock is formed between the explosion-proof point infrared flame detector and the solenoid valve.
[0011] The fire protection structure for the thermal oil pump provided by this utility model may also have the following feature: the electrical cabinet of the thermal oil pump is connected to an audible and visual alarm device, which includes an alarm light and a buzzer.
[0012] The technical effects of this utility model are as follows: The fire protection structure for the heat transfer oil pump provided by this utility model includes a detection component and a fire-fighting component. The detection component is set between the heat transfer oil pump and the heat transfer oil motor. The detection component is connected to the fire-fighting component. The detection component can effectively monitor whether there is an open flame at the heat transfer oil pump. The fire-fighting component can extinguish the fire in time, prevent the fire from spreading and igniting the surrounding machines, improve fire safety, and protect the safety of the current operators.
[0013] Therefore, the fire protection structure for the heat transfer oil pump provided by this utility model can effectively monitor whether there is an open flame at the heat transfer oil pump, extinguish the fire in time, prevent the fire from spreading and igniting surrounding machines, improve fire safety, and protect the safety of current operators. Attached Figure Description
[0014] This manual includes the following figures, which illustrate the following:
[0015] Figure 1 This is a schematic diagram of the fire protection structure of the heat transfer oil pump in an embodiment of this utility model.
[0016] The components are marked as follows: thermal oil pump-1, thermal oil motor-2, detection component-10, explosion-proof point infrared flame detector-11, first interlock-12, second interlock-13, fire-fighting component-20, sprinkler head-21, solenoid valve-22, sprinkler pipe-23, nitrogen cylinder-24. Detailed Implementation
[0017] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings, in order to help those skilled in the art to have a more complete, accurate and in-depth understanding of the inventive concept and technical solution of the present invention, and to facilitate its implementation.
[0018] Figure 1 This is a schematic diagram of the fire protection structure of the heat transfer oil pump in an embodiment of this utility model.
[0019] like Figure 1 As shown, the fire protection structure for the thermal oil pump provided by this utility model includes a detection component 10 and a fire-fighting component 20. The detection component 10 is disposed between the thermal oil pump 1 and the thermal oil motor 2, and is connected to the fire-fighting component 20. The detection component 10 can effectively monitor whether there is an open flame at the thermal oil pump 1, and the fire-fighting component 20 can extinguish the fire in time, preventing the fire from spreading and igniting surrounding machines, thus improving fire safety and protecting the safety of the operators.
[0020] The detection component 10 includes an explosion-proof point-type infrared flame detector 11. The explosion-proof point-type infrared flame detector 11 is located between the heat transfer oil pump 1 and the heat transfer oil motor 2, at a position 1.5m to 2m above the bearing of the heat transfer oil pump 1. The explosion-proof point-type infrared flame detector 11 is a device specifically designed for detecting flames and is commonly used in flammable and explosive environments such as petrochemical plants, mines, and warehouses. The explosion-proof point-type infrared flame detector 11 uses an infrared sensor to monitor infrared radiation of a specific wavelength. During combustion, a flame emits infrared radiation of a specific wavelength (usually in the 3-5 micrometer and 8-14 micrometer bands). The explosion-proof point-type infrared flame detector 11 receives this radiation to determine whether a flame exists, thereby effectively monitoring whether there is an open flame at the heat transfer oil pump 1.
[0021] The fire protection structure for the thermal oil pump provided by this utility model also includes a thermal oil pump electrical cabinet 30. The thermal oil pump electrical cabinet 30 is connected to the detection component 10 and the fire protection component 20. The thermal oil pump electrical cabinet 30 is connected to an explosion-proof point-type infrared flame detector 11. After detecting the presence of a flame, the explosion-proof point-type infrared flame detector 11 outputs an alarm digital signal to the thermal oil pump electrical cabinet 30. A DCS control system or PLC control system is provided between the thermal oil pump electrical cabinet 30 and the thermal oil motor 1, so that after receiving the alarm signal from the explosion-proof point-type infrared flame detector 11, the thermal oil pump electrical cabinet 30 will cut off the power to the thermal oil motor 1 and stop its operation through the DCS control system or PLC control system.
[0022] The fire suppression system 20 includes a sprinkler head 21, a solenoid valve 22, a sprinkler pipe 23, and a nitrogen cylinder 24. The sprinkler head 21 is located 1.5m to 2m above the bearing of the thermal oil pump 1. One end of the sprinkler pipe 23 is connected to the sprinkler head 21, and the other end is connected to the nitrogen cylinder 24, which stores nitrogen gas. The solenoid valve 22 is connected to the sprinkler head 21 and the thermal oil pump electrical cabinet 30. After receiving an alarm signal from the explosion-proof point-type infrared flame detector 11, the thermal oil pump electrical cabinet 30 can control the solenoid valve 22 to open, and the sprinkler head 21 will start spraying nitrogen gas to extinguish the fire. This timely extinguishing of the fire prevents the fire from spreading and igniting surrounding machinery, improves fire safety, and protects the safety of the operators.
[0023] The thermal oil pump electrical cabinet 30 is connected to an audible and visual alarm device 31, which includes an alarm light and a buzzer. When the thermal oil pump electrical cabinet 30 receives an alarm signal from the explosion-proof point infrared flame detector 11, it will turn on the alarm light and buzzer to promptly remind the operator and facilitate the operator to confirm the situation on site in a timely manner.
[0024] An explosion-proof point-type infrared flame detector 11 and the heat transfer oil motor 1 form a first interlock 12. When the explosion-proof point-type infrared flame detector 11 detects a flame, the heat transfer oil motor 2 is automatically powered off and stopped by the heat transfer oil pump electrical cabinet 30. A second interlock 13 is formed between the explosion-proof point-type infrared flame detector 11 and the solenoid valve 22. When the explosion-proof point-type infrared flame detector 11 detects a flame, the solenoid valve 22 is automatically opened by the heat transfer oil pump electrical cabinet 30. This can effectively monitor whether there is an open flame at the heat transfer oil pump, extinguish the fire in time, prevent the fire from spreading and igniting surrounding machines, improve fire safety, and protect the safety of the operators.
[0025] The role and effect of the embodiments
[0026] The fire protection structure for a thermal oil pump provided by this utility model includes a detection component 10 and a fire-fighting component 20. The detection component 10 is disposed between the thermal oil pump 1 and the thermal oil motor 2, and is connected to the fire-fighting component 20. The detection component 10 can effectively monitor whether there is an open flame at the thermal oil pump 1, and the fire-fighting component 20 can extinguish the fire in time, preventing the fire from spreading and igniting surrounding machinery, thus improving fire safety and protecting the safety of the operators.
[0027] The present invention has been described above by way of example with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvements made using the inventive concept and technical solution of the present invention; or the direct application of the inventive concept and technical solution to other situations without modification, are all within the protection scope of the present invention.
Claims
1. A heat transfer oil pump fire protection structure, characterized by, Including detection assembly (10) and fire-fighting assembly (20), the detection assembly (10) is arranged between heat conducting oil pump (1) and heat conducting oil motor (2), and the detection assembly (10) is connected with the fire-fighting assembly (20).
2. The hot oil pump fire protection arrangement of claim 1, wherein, The detection assembly (10) includes an explosion-proof point-type infrared flame detector (11), which is located between the heat conducting oil pump (1) and the heat conducting oil motor (2).
3. The hot oil pump fire protection arrangement of claim 2, wherein, Further comprising heat conducting oil pump electrical cabinet (30), the heat conducting oil pump electrical cabinet (30) is connected with the detection assembly (10) and the fire-fighting assembly (20).
4. The hot oil pump fire protection arrangement of claim 3, wherein, The fire-fighting assembly (20) includes a spray head (21), an electromagnetic valve (22), a spray pipe (23) and a nitrogen bottle (24), one end of the spray pipe (23) is connected with the spray head (21), the other end of the spray pipe (23) is connected with the nitrogen bottle (24), the electromagnetic valve (22) is connected with the spray head (21), and the electromagnetic valve (22) is connected with the heat conducting oil pump electrical cabinet (30).
5. The hot oil pump fire protection arrangement of claim 4, wherein, DCS control system or PLC control system is arranged between the heat conducting oil pump electrical cabinet (30) and the heat conducting oil motor (2).
6. The hot oil pump fire protection arrangement of claim 5, wherein, The explosion-proof point-type infrared flame detector (11) and the heat conducting oil motor (2) form a first interlock (12); the explosion-proof point-type infrared flame detector (11) and the electromagnetic valve (22) form a second interlock (13).
7. The hot oil pump fire protection arrangement of claim 6, wherein, The heat conducting oil pump electrical cabinet (30) is connected with an audible and visual alarm device (31), and the audible and visual alarm device includes an alarm lamp and a buzzer.