EH oil chilled water cooling device
By using EH oil refrigerated water cooling device in EH oil cooler and using air-conditioning refrigerated water and plate heat exchanger for cooling, the problem of difficulty in cooling EH oil in traditional oil coolers in high temperature environments is solved, and high efficiency and energy saving is achieved. Precise control and economical.
Patent Information
- Application Number
- CN202421361132.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-14
- Publication Date
- 2025-02-14
- Estimated Expiration
- 2034-06-14
AI Technical Summary
In the high temperature environment in summer, traditional EH oil coolers are difficult to meet the cooling needs of EH oil, resulting in excessive temperature of EH oil, shortening service life and threatening the safe operation of the unit.
EH oil refrigerated water cooling device is used, which uses air-conditioned refrigerated water as a cooling water source and heat exchanges through a plate heat exchanger. Combined with the use of water pumps and isolation valves, the precise control of EH oil temperature is achieved.
It improves energy utilization efficiency, reduces additional energy consumption, achieves precise control of EH oil temperature, extends the service life of the equipment, and reduces installation and maintenance difficulties.
Smart Images
Figure CN222479135U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of temperature reduction, and specifically refers to an EH oil refrigeration water cooling device. Background Art
[0002] EH oil, or electro-hydraulic servo control oil, is an important working medium for steam turbines in power systems. As a turbine oil cooling device used in conjunction with steam turbines, the EH oil cooler has the main function of reducing the temperature of the EH oil through heat exchange to ensure the normal operation of the unit. Traditional EH oil coolers usually use closed cooling water as the cooling water source, which can meet the cooling needs in most cases.
[0003] However, in the high temperature environment in summer, the temperature of closed cooling water often exceeds 30℃. At this time, even if the oil cooler valve is fully opened, it is difficult to meet the cooling needs of EH oil. Excessive EH oil temperature will cause the oxidation and decomposition of the anti-oil oil to accelerate, the acid value to increase, and the color to darken. This will not only shorten the service life of EH oil, but also pose a serious threat to the safe operation of the unit. Utility Model Content
[0004] In order to solve the above problems, the utility model proposes an EH oil refrigeration water cooling device.
[0005] The technical solution adopted by the utility model is as follows: The utility model provides an EH oil chilled water cooling device, including an EH oil station for a unit, wherein the output end of the EH oil station for a unit is penetrated with one end of a pipeline one, and the other end of the pipeline one is penetrated and installed on one side of an input end of a plate heat exchanger, and the output end of one side of the plate heat exchanger is penetrated and installed with one end of a pipeline two, and the other end of the pipeline two is penetrated and connected to the input end of the EH oil station for a unit, a water pump one is provided on the pipeline two, and the output end of the other side of the plate heat exchanger is penetrated and installed with one end of a pipeline three, and the other end of the pipeline three is penetrated through the input end of an air-conditioning chilled water tank, and the output end of the air-conditioning chilled water tank is penetrated and installed with one end of a pipeline four, and the other end of the pipeline four is penetrated and installed with the other side of the input end of the plate heat exchanger.
[0006] Furthermore, the pipeline 2 is provided with a water pump 1, and the pipeline 4 is provided with a water pump 2.
[0007] Furthermore, the model of the plate heat exchanger is ER0.1-5,316L / N.
[0008] Furthermore, the pipeline one is provided with an isolation valve one, the model of the isolation valve one is J41H-16C, DN25, and the pipeline three is provided with an isolation valve two, the model of the isolation valve two is J41H-16C, DN25.
[0009] The beneficial effects achieved by the utility model using the above structure are as follows:
[0010] (1) High efficiency and energy saving: Using air conditioning chilled water as the cooling water source improves energy utilization efficiency and reduces additional energy consumption. The high heat transfer coefficient of the plate heat exchanger makes heat transfer more efficient and reduces energy waste.
[0011] (2) Precise control: By isolating valve 2 to control the flow entering the plate heat exchanger, the EH oil temperature can be precisely controlled to meet different working requirements. Precise temperature control helps to ensure the stable operation of the EH oil system and extend the service life of the equipment.
[0012] (3) Stable operation: The plate heat exchanger has a compact structure and occupies a small area, which reduces the difficulty of installation and maintenance. Since the fluid has developed turbulence in the flow channel between the plates, the solid particles are suspended, the surface is smooth, and dirt is not easy to deposit, which further ensures the stability of the system operation.
[0013] (4) Economy: Using existing air-conditioning chilled water as the cooling water source reduces additional equipment investment. The use of plate heat exchangers reduces heat dissipation losses, further improving the economy of the system. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] In order to more clearly illustrate the technical solution of the utility model, the drawings required for use in the description will be briefly introduced below. Obviously, the drawings in the following description 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.
[0015] Figure 1 This is a front view of an EH oil-chilled water cooling device of the utility model.
[0016] Among them, 1. Plate heat exchanger, 2. Unit EH oil station, 3. Isolation valve one, 4. Isolation valve two, 5. Pipeline one, 6. Pipeline two, 7. Pipeline three, 8. Pipeline four, 9. Water pump one, 10. Water pump two, 11. Air conditioning chilled water tank. DETAILED DESCRIPTION
[0017] In order to make the purpose, features and advantages of the utility model more obvious and easy to understand, the technical scheme of the utility model will be clearly and completely described below in combination with the drawings in the specific embodiment. Obviously, the embodiments described below are only part of the embodiments of the utility model, not all of them. Based on the embodiments in this patent, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this patent.
[0018] like Figure 1 As shown, the utility model proposes an EH oil refrigeration water cooling device, including an EH oil station 2 of the unit, the output end of the EH oil station 2 of the unit is connected with one end of a pipeline 5, and the other end of the pipeline 5 is connected and installed at one side of the input end of the plate heat exchanger 1, the model of the plate heat exchanger 1 is ER0.1-5,316L / N, one side of the output end of the plate heat exchanger 1 is connected with one end of a pipeline 6, and a water pump 9 is arranged on the pipeline 6, and the other end of the pipeline 6 is connected and connected to the input end of the EH oil station 2 of the unit, and the pipeline 6 is provided with a water pump 9, and the plate heat exchanger The output end of the other side of the heat exchanger 1 is connected with one end of a pipeline 3 7, the other end of the pipeline 3 7 is connected with the input end of the air-conditioning chilled water tank 11, the output end of the air-conditioning chilled water tank 11 is connected with one end of a pipeline 4 8, a water pump 2 10 is provided on the pipeline 4 8, the other end of the pipeline 4 8 is connected with the input end of the other side of the plate heat exchanger 1, an isolation valve 1 3 is provided on the pipeline 1 5, the model of the isolation valve 1 3 is J41H-16C, DN25, and an isolation valve 2 4 is provided on the pipeline 3 7, the model of the isolation valve 2 4 is J41H-16C, DN25.
[0019] When in use, open the isolation valve 2 4, start the water pump 2 10, the air-conditioning chilled water in the air-conditioning chilled water tank 11 enters the plate heat exchanger 1 through the pipeline 4 8, and then flows back to the air-conditioning chilled water tank 11 from the pipeline 3 7, thereby cooling the plate heat exchanger 1, start the water pump 1 9 to draw the EH oil in the plate heat exchanger 1 from the pipeline 2 6 into the plate heat exchanger 1, and after cooling in the plate heat exchanger 1, it flows back to the unit EH oil station 2 through the pipeline 1 5, completing the cooling of the EH oil in the unit EH oil station 2. The isolation valve 2 4 isolates the air-conditioning chilled water. The above is the overall working process of the utility model, and this step can be repeated the next time it is used.
[0020] It can be seen from the above embodiments that the beneficial effects of the utility model are:
[0021] High efficiency and energy saving: Using air-conditioning chilled water as the cooling water source improves energy utilization efficiency and reduces additional energy consumption. The high heat transfer coefficient of the plate heat exchanger makes heat transfer more efficient and reduces energy waste. Precise control: By controlling the flow entering the plate heat exchanger through isolation valve 2, the EH oil temperature can be precisely controlled to meet different work requirements. Precise temperature control helps to ensure the stable operation of the EH oil system and extend the service life of the equipment. Stable operation: The plate heat exchanger has a compact structure and a small footprint, which reduces the difficulty of installation and maintenance. Due to the developed turbulence of the fluid in the flow channel between the plates, the solid particles are suspended, the surface is smooth, and dirt is not easy to deposit, which further ensures the stability of the system operation. Economy: Using existing air-conditioning chilled water as the cooling water source reduces additional equipment investment. The use of plate heat exchangers reduces heat dissipation losses and further improves the economy of the system.
[0022] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. An EH oil chilled water cooling device, comprising an EH oil station (2) of a unit, characterized in that; The output end of the EH oil station (2) of the unit is penetrated by one end of a pipeline 1 (5), the other end of the pipeline 1 (5) is penetrated and installed on one side of the input end of the plate heat exchanger (1), the output end of one side of the plate heat exchanger (1) is penetrated by one end of a pipeline 2 (6), the other end of the pipeline 2 (6) is penetrated and connected to the input end of the EH oil station (2) of the unit, a water pump 1 (9) is provided on the pipeline 2 (6), the output end of the other side of the plate heat exchanger (1) is penetrated by one end of a pipeline 3 (7), the other end of the pipeline 3 (7) is penetrated by the input end of the air-conditioning chilled water tank (11), the output end of the air-conditioning chilled water tank (11) is penetrated by one end of a pipeline 4 (8), the other end of the pipeline 4 (8) is penetrated and installed on the other side of the input end of the plate heat exchanger (1).
2. The EH oil refrigerated water cooling device according to claim 1, characterized in that: The pipeline 2 (6) is provided with a water pump 1 (9), and the pipeline 4 (8) is provided with a water pump 2 (10).
3. The EH oil refrigerated water cooling device according to claim 2, characterized in that: The model of the plate heat exchanger (1) is ER0.1-5,316L / N.
4. The EH oil refrigerated water cooling device according to claim 3, characterized in that: The pipeline one (5) is provided with an isolation valve one (3), the model of the isolation valve one (3) is J41H-16C, DN25, and the pipeline three (7) is provided with an isolation valve two (4), the model of the isolation valve two (4) is J41H-16C, DN25.