Oil cooler system of water feeding pump

By improving the design of the water pump oil cooler system, including fire water backflushing and redundant oil coolers, the problems of reduced heat exchange efficiency and inconvenient maintenance caused by impurity accumulation have been solved, achieving stable operation and efficient cleaning, and extending equipment life.

CN223868153UActive Publication Date: 2026-02-03XINJIANG HUADIAN HAMI THERMAL POWER CO LTD
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Patent Information

Application Number
CN202520491741.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-20
Publication Date
2026-02-03
Estimated Expiration
2035-03-20

AI Technical Summary

Technical Problem

Existing feedwater pump oil cooler systems are prone to accumulating impurities after long-term operation, affecting heat exchange efficiency and cooling effect. Furthermore, the lack of effective observation and maintenance methods leads to unstable equipment operation.

Method used

A system comprising a water pump oil cooler, circulating water pipeline, water filter, and mechanical condenser was designed. The oil cooler and circulating water pipeline are cleaned through fire water backwashing pipeline and control valves. Combined with a transparent observation window and redundant oil cooler design, the cleanliness and maintenance convenience of the system are improved.

Benefits of technology

It effectively removes impurities, improves heat exchange efficiency, ensures stable operation of the feed water pump, extends equipment life, and guarantees system reliability and ease of operation through real-time monitoring and redundant design.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a feed pump oil cooler system which comprises a feed pump oil cooler, a circulating water pipeline, a water filter and a machine condenser, and the circulating water pipeline is communicated with the feed pump oil cooler, the water filter and the machine condenser; the water feeding pump oil cooler system further comprises a fire fighting water main pipe used for conveying water. One end of the fire-fighting water backwashing pipeline is connected with the fire-fighting water mother pipe, and the other end of the fire-fighting water backwashing pipeline is connected to a circulating water pipeline; wherein a fire-fighting water backwash main door is arranged between the fire-fighting water backwash pipeline and the fire-fighting water main pipe, and a fire-fighting water backwash sub door is arranged between the fire-fighting water backwash pipeline and the water feeding pump oil cooler. By means of the technical scheme, impurities in the water feed pump oil cooler and the circulating water pipeline can be effectively removed, the heat exchange efficiency is improved, stable operation of the water feed pump is guaranteed, and the service life of equipment is prolonged.
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Description

Technical Field

[0001] This application relates to the technical field of water pump cooling, and more particularly to a water pump oil cooler system. Background Technology

[0002] During the operation of a feedwater pump, the feedwater pump oil cooler plays a crucial role. It cools the working oil of the pump through circulating water, ensuring stable operation at a suitable temperature. However, existing feedwater pump oil cooler systems have several problems. Firstly, after prolonged operation, impurities easily accumulate inside the cooler, affecting heat exchange efficiency, reducing cooling effect, and consequently impacting the normal operation of the feedwater pump. For example, every spring, when cooling tower packing breaks, some packing fragments and calcium deposits from the tower pool enter the feedwater pump oil cooler through the circulating water self-flow channel filter and manual water filter. Current cleaning methods are complex and ineffective. Secondly, existing systems lack convenience in daily maintenance and operation, lacking effective observation and control methods, hindering timely detection and problem solving. Utility Model Content

[0003] This application provides a feedwater pump oil cooler system, which improves the cooling effect of the feedwater pump oil cooler system and facilitates the observation and maintenance of the feedwater pump oil cooler system, thereby at least partially solving the above-mentioned technical problems.

[0004] To achieve the above objectives, according to a first aspect of this application, a feedwater pump cooler system is provided, comprising:

[0005] The system includes a feedwater pump cooler, a circulating water pipeline, a water filter, and a mechanical condenser, wherein the circulating water pipeline connects the feedwater pump cooler, the water filter, and the mechanical condenser.

[0006] The feedwater pump cooler system also includes:

[0007] Fire hydrant hoses are used for transporting water.

[0008] The fire water backwashing pipeline is connected at one end to the fire water main pipe and at the other end to the circulating water pipeline.

[0009] The fire water backwashing pipeline is provided with a main fire water backwashing valve between itself and the fire water main pipe, and a sub-fire water backwashing valve is provided between itself and the water supply pump cooler.

[0010] Optionally,

[0011] The circulating water pipeline includes: a circulating water inlet main pipe and a circulating water outlet main pipe;

[0012] The other end of the fire water backwashing pipeline is connected to the circulating water inlet main pipe.

[0013] Optionally,

[0014] The fire water backwash main valve is located at one end near the fire water header.

[0015] Optionally,

[0016] The circulating water inlet header between the water supply pump cooler and the water filter is equipped with a cooler inlet control valve.

[0017] The circulating water outlet header between the water supply pump cooler and the water filter is equipped with a cooler outlet control valve.

[0018] Optionally,

[0019] The feedwater pump cooler is equipped with two drain control valves, which are located on the same side of the feedwater pump cooler.

[0020] Optionally,

[0021] The drainage control valve is located on the water-side pipe at the bottom of the water pump cooler.

[0022] Optionally,

[0023] The feedwater pump cooler also includes:

[0024] The water-side observation window of the oil cooler is configured to observe the condition of the internal tube bundle 1 of the feed water pump oil cooler.

[0025] Optionally,

[0026] The water-side observation window of the oil cooler is made of transparent material.

[0027] Optionally,

[0028] The water filter is a manual water filter.

[0029] Optionally,

[0030] At least two water pump coolers are provided in the water pump cooler system.

[0031] The feedwater pump cooler system of this application embodiment includes: a feedwater pump cooler, a circulating water pipeline, a water filter, and a mechanical condenser, wherein the circulating water pipeline connects the feedwater pump cooler, the water filter, and the mechanical condenser; the feedwater pump cooler system also includes: a fire water main pipe for water transportation; a fire water backwashing pipeline, one end of which is connected to the fire water main pipe, and the other end of which is connected to the circulating water pipeline; wherein a main fire water backwashing valve is provided between the fire water backwashing pipeline and the fire water main pipe, and a sub-fire water backwashing valve is provided between the fire water backwashing pipeline and the feedwater pump cooler. Through the above technical solution, impurities in the feedwater pump cooler and circulating water pipeline can be effectively removed, heat exchange efficiency can be improved, stable operation of the feedwater pump can be ensured, and the service life of the equipment can be extended.

[0032] Other features and advantages of this application will be described in detail in the following detailed description section. Attached Figure Description

[0033] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0034] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings, wherein the same reference numerals in the following description denote the same parts.

[0035] Figure 1 This is an overall schematic diagram of the feedwater pump cooler system provided in an exemplary embodiment of this disclosure;

[0036] Explanation of reference numerals in the attached figures:

[0037] 100. Feedwater pump oil cooler system;

[0038] 110. Feed water pump oil cooler; 111. Drainage control valve; 112. Water-side observation window of oil cooler;

[0039] 120. Circulating water pipe; 121. Circulating water inlet main pipe; 122. Circulating water outlet main pipe;

[0040] 130. Water filter;

[0041] 140. Mechanical condenser;

[0042] 150. Fire hydrant tube;

[0043] 170. Fire water backwashing pipeline;

[0044] 181. Fire water backwash main valve; 182. Fire water backwash sub-valve; 183. Oil cooler inlet control valve; 184. Oil cooler outlet control valve; Detailed Implementation

[0045] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the protection scope of this application.

[0046] This application provides a feedwater pump oil cooler system 100. Please refer to [link / reference]. Figure 1 , Figure 1 This is a schematic diagram of a water pump cooler system 100 provided in an embodiment of this application.

[0047] The water supply pump cooler system 100 includes: water supply pump cooler 110, circulating water pipeline 120, water filter 130, mechanical condenser 140, fire water main pipe 150, and fire water backwash pipeline 170.

[0048] The feedwater pump cooler 110 is connected to the water filter 130 via the circulating water pipe 120. The water filter 130 is connected to the mechanical condenser 140 via the circulating water pipe 120. The water filter 130 is located between the feedwater pump cooler 110 and the mechanical condenser 140. The circulating water pipe 120 includes a circulating water inlet header 121 and a circulating water outlet header 122. One end of the fire water backwash pipe 170 is connected to the fire water header 150, and the other end is connected to the circulating water inlet header 121 of the circulating water pipe 120. A fire water backwash main valve 181 is provided between the fire water backwash pipe 170 and the fire water header 150, and a fire water backwash sub-valve 182 is provided between the fire water backwash pipe 170 and the feedwater pump cooler 110.

[0049] The fire water backwash pipe 170 and fire water main pipe 150 are used to backwash the feedwater pump cooler 110 and the circulating water pipe 120 using the pressure of the fire water. When cleaning is required, the main fire water backwash valve 181 and the corresponding sub-valve fire water backwash valve 182 are opened. Fire water flows from the fire water main pipe 150 through the fire water backwash pipe 170 into the circulating water pipe 120 and the feedwater pump cooler 110, flushing out impurities inside the feedwater pump cooler 110. This effectively removes impurities from the feedwater pump cooler 110 and the circulating water pipe 120, improves heat exchange efficiency, ensures stable operation of the feedwater pump, and extends the service life of the equipment. In addition, the other end of the fire water backwash pipe 170 is connected to the circulating water inlet main pipe 121, allowing the fire water to flush the pipes before the circulating water enters the feedwater pump cooler 110. During backwashing, the water flow direction is opposite to the normal circulating water flow direction, which can more effectively flush out impurities.

[0050] In some embodiments of this application, the main fire water backwash valve 181 is located at one end near the fire water header 150. Positioning the main fire water backwash valve 181 near the fire water header 150 allows operators to more easily control the flow of fire water into the backwash pipeline, enabling faster shut-off or activation of the fire water supply. It also facilitates unified control of the fire water inflow, improving operational efficiency and ensuring rapid activation when backwashing is needed and timely closure when not required, thus guaranteeing the smooth operation of the backwash and the safe operation of the system.

[0051] In some embodiments of this application, a cooler inlet control valve 183 is provided on the circulating water inlet header 121 between the feedwater pump cooler 110 and the water filter 130, and a cooler outlet control valve 184 is provided on the circulating water outlet header 122 between the feedwater pump cooler 110 and the water filter 130. By controlling the opening of these two valves, the amount of circulating water entering the feedwater pump cooler 110 can be precisely adjusted, thereby controlling the cooling effect of the feedwater pump cooler 110 and improving the system's operating efficiency and stability.

[0052] In some embodiments of this application, the feedwater pump cooler 110 is equipped with two drain control valves 111, which are located on the same side of the feedwater pump cooler 110 and on the water-side pipe at the bottom of the cooler 110. During maintenance and repair of the feedwater pump cooler 110, drainage operations are inconvenient and may lead to incomplete drainage, affecting maintenance effectiveness. By providing two drain control valves 111 on the same side of the feedwater pump cooler 110, when drainage is needed, opening these two valves allows gravity to drain the water from the cooler, improving drainage efficiency, ensuring thorough drainage, and facilitating smooth maintenance and repair of the cooler.

[0053] In some embodiments of this application, the feedwater pump oil cooler 110 further includes a water-side observation window 112, configured to observe the internal tube bundle of the feedwater pump oil cooler 110. The water-side observation window 112 can be a movable window; it can be opened when observation is needed and closed when not in use. Alternatively, the water-side observation window 112 can be made of a transparent material, utilizing its light transmittance to allow operators to clearly see the internal tube bundle, such as whether there are problems like scaling, corrosion, or leaks. The transparent water-side observation window 112 can be fixedly connected to the housing of the feedwater pump oil cooler 110. This facilitates real-time monitoring of the internal tube bundle status of the feedwater pump oil cooler 110, enabling timely detection of potential faults and abnormalities, providing a basis for equipment maintenance and repair, and preventing equipment damage and production accidents caused by undetected faults.

[0054] In some embodiments of this application, the water filter 130 is either a manual water filter 130 or an automatic water filter 130. The manual water filter 130 filters the circulating water; its filter screen can intercept particulate impurities in the circulating water, preventing them from entering the feed water pump oil cooler 110. The manual water filter 130 is simpler and more reliable in structure than the automatic water filter 130, and has a lower cost. It can reduce equipment wear and the probability of failure in the feed water pump oil cooler system 100, improving the reliability of system operation.

[0055] In some embodiments of this application, at least two feedwater pump oil coolers 110 are provided in the feedwater pump oil cooler system 100. When a feedwater pump oil cooler 110 malfunctions or requires maintenance, a single oil cooler may not be able to meet the cooling requirements of the system, leading to unstable operation of the feedwater pump. By providing at least two feedwater pump oil coolers 110 in the feedwater pump oil cooler system 100, when one oil cooler malfunctions or requires maintenance, the other oil cooler can continue to operate, ensuring the normal operation of the system's cooling function. This improves the system's reliability and redundancy, ensuring that the feedwater pump can still operate stably at a suitable temperature when an oil cooler malfunctions or requires maintenance, thus guaranteeing the continuity of production.

[0056] The feedwater pump cooler system 100 of this application allows for real-time observation of the system through the water-side observation window 112. If significant blockage is found in the tube bundle of the feedwater pump cooler 110, and flushing of the feedwater pump cooler 110 is required, the following procedure shall be followed:

[0057] Open the main fire water backwash valve 181 and the sub-fire water backwash valve 182; close the oil cooler inlet control valve 183 and the oil cooler outlet control valve 184; open the drain control valve 111 of the water supply pump oil cooler 110 for flushing. When there are two drain control valves, first open one drain control valve 111 for flushing for 15 minutes, and then open the other drain control valve 111 for flushing for 15 minutes.

[0058] Observe through the water-side observation window 112 of the oil cooler. After cleaning is completed, close the drain control valve 111, open the oil cooler inlet control valve 183 and the oil cooler outlet control valve 184, and close the fire water backwash sub-valve 182.

[0059] The waterproof backwash main valve can be opened and closed as needed, and can be kept in the normally open state.

[0060] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0061] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0062] The embodiments, implementation methods, and related technical features of this application can be combined and substituted for each other without conflict.

[0063] The above are merely preferred embodiments of this application and are not intended to limit this application in any way. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this application without departing from the scope of the technical solution of this application shall still fall within the scope of the technical solution of this application.

Claims

1. A water pump oil cooler system characterized by, The system comprises: a feed water pump oil cooler, a circulating water pipeline, a water filter, and a machine condenser, wherein the circulating water pipeline is connected to the feed water pump oil cooler, the water filter, and the machine condenser; the feed water pump oil cooler system further comprises: a fire-fighting water main pipe for water delivery; a fire-fighting water backwashing pipeline connected to one end of the fire-fighting water main pipe and to the other end of the circulating water pipeline; wherein a fire-fighting water backwashing main gate is arranged between the fire-fighting water backwashing pipeline and the fire-fighting water main pipe, and a fire-fighting water backwashing sub-gate is arranged between the fire-fighting water backwashing pipeline and the feed water pump oil cooler.

2. The feed water pump oil cooler system according to claim 1, wherein the circulating water pipeline comprises a circulating water inlet main pipe and a circulating water outlet main pipe; the other end of the fire-fighting water backwashing pipeline is connected to the circulating water inlet main pipe.

3. The feed water pump oil cooler system according to claim 2, wherein the fire-fighting water backwashing main gate is arranged close to one end of the fire-fighting water main pipe.

4. The feed water pump oil cooler system according to claim 2, wherein the circulating water inlet main pipe between the feed water pump oil cooler and the water filter is provided with an oil cooler water inlet control valve; the circulating water outlet main pipe between the feed water pump oil cooler and the water filter is provided with an oil cooler water outlet control valve.

5. The feed water pump oil cooler system according to claim 1, wherein the feed water pump oil cooler is provided with two water discharge control valves arranged on the same side of the feed water pump oil cooler.

6. The feed water pump oil cooler system according to claim 5, wherein the water discharge control valves are arranged on the bottom water side pipeline of the feed water pump oil cooler.

7. The feed water pump oil cooler system according to claim 6, wherein the feed water pump oil cooler further comprises: an oil cooler water side observation window configured to observe the internal tube bundle 1 of the feed water pump oil cooler.

8. The feed water pump oil cooler system according to claim 7, wherein the material of the oil cooler water side observation window is transparent.

9. The feed water pump oil cooler system according to any one of claims 1 to 8, wherein the water filter is a manual water filter.

10. The feed water pump oil cooler system according to claim 9, wherein at least two feed water pump oil coolers are arranged in the feed water pump oil cooler system.