A vertical high-temperature drainage pump cooling device
By designing a vertical high-temperature drainage pump cooling device and utilizing the automatic control of cooling water pipes and solenoid valves, the problem of low mixing efficiency between cooling water and high-temperature drainage is solved, effectively cooling the drainage pump and improving the reliability and continuity of the system.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGXIA BAOFENG ENERGY GROUP CO LTD
- Filing Date
- 2025-09-11
- Publication Date
- 2026-07-31
AI Technical Summary
In the existing technology, the mixing efficiency of cooling water and high-temperature drainage is low, which leads to overheating of the drainage pump, aging of seals, damage to bearings, frequent motor failures, and affects the continuity and reliability of the system.
A vertical high-temperature drainage pump cooling device was designed. Through the combination structure of cooling water pipe, diversion pipe and return pipe, and by using temperature sensor and microcontroller to control solenoid valve, the cooling water is automatically regulated, and the temperature of the fixed discharge well and drainage pump is directly reduced, thereby improving mixing efficiency and cooling effect.
It improves the mixing efficiency of cooling water and high-temperature drainage, reduces the temperature of the drainage pump, extends its service life, avoids equipment failure, and ensures the stable operation of the system.
Smart Images
Figure CN224579542U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of drainage pump cooling technology, and more specifically, to a vertical high-temperature drainage pump cooling device. Background Technology
[0002] In thermal power plants and industrial boiler systems, the periodic blowdowns of pulverized coal boilers and various condensates from public systems are usually discharged into drainage wells or sump pits. The temperature of these high-temperature effluents often exceeds 100°C. Direct discharge or recycling would cause severe thermal shock to downstream equipment. Therefore, existing technologies generally use domestic water as a cooling medium, which is directly injected into drainage wells or sump pits and mixed with the high-temperature effluent to reduce the water temperature to a safe range of 60-80°C. The water is then pumped up and recycled using a vertical high-temperature effluent pump to achieve the recycling of water resources.
[0003] Because the cooling process relies entirely on external mixing and cooling within the drainage well, the mixing efficiency between the cooling water and the high-temperature drainage is low, and the cooling effect is unstable. Especially when the high-temperature drainage volume increases suddenly or the cooling water pressure fluctuates, uneven mixing and excessive water temperature are very likely to occur. When the water temperature entering the drainage pump exceeds its design tolerance range, it will cause the pump body to overheat, leading to aging of seals, damage to bearings, or even motor failure. This will cause the high-temperature drainage pump to frequently alarm at high temperatures or shut down, seriously affecting the continuity and reliability of the system. Utility Model Content
[0004] To overcome the above deficiencies, this application provides a vertical high-temperature drainage pump cooling device, which aims to improve the low mixing efficiency of cooling water and high-temperature drainage. When the water temperature entering the drainage pump exceeds its design tolerance range, it will cause the pump body to overheat, leading to problems such as aging of seals, damage to bearings, and even motor failure.
[0005] This application provides a vertical high-temperature drainage pump cooling device, including a main structure and a cooling structure. The main structure includes a cooling water pipe, a drainage pump, a pumping pipe, and a drain pipe. The pumping pipe is fixedly connected to the inlet end of the drainage pump, and the drain pipe is fixedly connected to the outlet end of the drainage pump. The cooling structure includes a branch pipe, a return pipe, and a fixed pipe. The branch pipe is located between the cooling water pipe and the pumping pipe, the return pipe is located between the cooling water pipe and the drain pipe, and the fixed pipe is located on the surface of the return pipe.
[0006] In one specific implementation, the upper end of the cooling water pipe is connected to an external cooling water source, and the left end of the pumping pipe is connected to an external drainage well.
[0007] In the above process, the cooling water pipe is used to transport the external cooling water to the fixed discharge well to cool the water, and the pumping pipe is used to pump the water out of the fixed discharge well for recycling.
[0008] In one specific implementation, a first solenoid valve is provided at the lower end of the surface of the cooling water pipe, a first tee pipe is connected to the surface of the cooling water pipe and above the first solenoid valve, and a second tee pipe is connected to the surface of the cooling water pipe and above the first tee pipe.
[0009] In the above implementation process, the first solenoid valve is used to control the water flow inside the cooling water pipe, the first tee pipe is used to connect the cooling water pipe and the branch pipe, and the second tee pipe is used to connect the cooling water pipe and the return pipe.
[0010] In one specific implementation, the left end of the diversion pipe is connected to the right end of the first tee pipe, and the left end of the return pipe is connected to the right end of the second tee pipe.
[0011] In the above process, the diversion pipe is used to directly transport the cooling water in the cooling water pipe to the pumping pipe, so that it can flow through the inside of the drain pump. While flowing, it can cool the inside of the drain pump. The return pipe is used to transport the water used for cooling in the drain pipe back to the inside of the cooling water pipe, so that it can continue to perform cooling work.
[0012] In one specific implementation, the surface of the pumping pipe is connected to a third tee pipe, and the lower end of the diversion pipe is connected to the upper end of the third tee pipe.
[0013] In the above process, the third tee pipe is used to connect the pumping pipe and the branch pipe.
[0014] In one specific implementation, a second solenoid valve is provided at the upper end of the surface of the drain pipe, and a fourth three-way pipe is connected to the surface of the drain pipe and below the second solenoid valve. The right end of the return pipe is connected to the left end of the fourth three-way pipe.
[0015] In the above implementation process, the second solenoid valve is used to control the flow rate of water in the drain pipe, and the fourth three-way pipe is used to connect the drain pipe and the return pipe.
[0016] In one specific implementation, a third solenoid valve is provided on the surface of the diversion pipe, a fourth solenoid valve is provided on the surface of the return pipe, and a temperature sensor and a microcontroller are provided on the surface of the drain pump.
[0017] In the above implementation process, the third solenoid valve is used to control the flow rate of water inside the diversion pipe, and the fourth solenoid valve is used to control the flow rate of water inside the return pipe.
[0018] In one specific implementation, the output of the temperature sensor is connected to the input of the microcontroller, and the inputs of the first, second, third, and fourth solenoid valves are all connected to the output of the microcontroller.
[0019] In the above implementation process, the temperature controller is used to detect the internal temperature of the drainage pump and transmit the monitoring data to the microcontroller in the form of an electrical signal. The microcontroller can automatically control the opening and closing of the first solenoid valve, the second solenoid valve, the third solenoid valve and the fourth solenoid valve according to the temperature data, thereby automatically cooling the drainage pump.
[0020] In one specific implementation, a fixing ring is fixedly connected to the inner cavity of the fixing pipe, and a water-blocking plate is movably connected to the inner cavity of the fixing pipe on the left side of the fixing ring via a rotating shaft.
[0021] In the above process, the fixing ring is used to fix the sealing gasket and limit the water baffle, so that it can only deflect to the left. The water baffle plays a role in limiting the water flow, so that the water can only flow from right to left inside the return pipe.
[0022] In one specific embodiment, a sealing gasket is fixedly connected to the left side of the fixing ring, and the right side of the sealing gasket contacts the left side of the sealing gasket.
[0023] In the above process, the sealing gasket is used to seal the gap between the fixing ring and the water-blocking plate, thereby reducing water seepage.
[0024] Compared with the prior art, the beneficial effects of this application are: cooling water can not only be directly added to the drainage well, but also be delivered to the inlet pipe of the drainage pump, so that the cooling water can flow through the inside of the drainage pump. While flowing, the cooling water can remove the heat in the drainage pump by heat transfer, thereby reducing the impact of high temperature on the use of the drainage pump and improving the service life of the drainage pump. Attached Figure Description
[0025] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.
[0026] Figure 1 This is a schematic diagram of a vertical high-temperature drainage pump cooling device provided in an embodiment of this application;
[0027] Figure 2 A schematic diagram of a vertical high-temperature drainage pump cooling device provided for embodiments of this application;
[0028] Figure 3 A schematic diagram of the connection structure of the cooling water pipe, drainage pump, and pumping pipe provided for an embodiment of this application;
[0029] Figure 4A schematic diagram of the front cross-sectional structure of the fixed tube provided in the embodiments of this application;
[0030] Figure 5 A schematic diagram of the water flow direction in a drainage project provided for an embodiment of this application;
[0031] Figure 6 A schematic diagram of the water flow direction during the water addition process provided in this application embodiment;
[0032] Figure 7 A schematic diagram of the water flow direction structure in the circulating cooling process provided in this application embodiment;
[0033] Figure 8 A schematic diagram of the water flow direction in the direct discharge cooling process provided in this application embodiment.
[0034] In the diagram: 10, main structure; 110, cooling water pipe; 1101, first solenoid valve; 1102, first tee pipe; 1103, second tee pipe; 120, drain pump; 130, water suction pipe; 1301, third tee pipe; 140, drain pipe; 1401, second solenoid valve; 1402, fourth tee pipe; 20, cooling structure; 210, branch pipe; 2101, third solenoid valve; 220, return pipe; 2201, fourth solenoid valve; 230, fixed pipe; 2301, fixing ring; 2302, water baffle; 2303, sealing gasket. Detailed Implementation
[0035] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments.
[0036] Please see Figures 1 to 8 This application provides a vertical high-temperature drainage pump cooling device, including a main structure 10 and a cooling structure 20.
[0037] Please see Figure 1 , Figure 2 and Figure 3 The main structure 10 includes a cooling water pipe 110, a drainage pump 120, a water suction pipe 130, and a drainage pipe 140. The water suction pipe 130 is fixedly connected to the water inlet of the drainage pump 120, and the drainage pipe 140 is fixedly connected to the water outlet of the drainage pump 120.
[0038] Please see Figure 1 , Figure 2 and Figure 3The cooling structure 20 includes a distribution pipe 210, a return pipe 220, and a fixed pipe 230. The distribution pipe 210 is located between the cooling water pipe 110 and the water extraction pipe 130, the return pipe 220 is located between the cooling water pipe 110 and the drain pipe 140, and the fixed pipe 230 is located on the surface of the return pipe 220.
[0039] In a specific configuration, the upper end of the cooling water pipe 110 is connected to an external cooling water source, and the left end of the pumping pipe 130 is connected to an external set-out well. The cooling water pipe 110 is used to transport external cooling water to the set-out well to cool the water, and the pumping pipe 130 is used to pump out the water from the set-out well for recycling.
[0040] In a specific configuration, a first solenoid valve 1101 is provided at the lower end of the surface of the cooling water pipe 110. A first three-way pipe 1102 is connected to the surface of the cooling water pipe 110 and above the first solenoid valve 1101. A second three-way pipe 1103 is connected to the surface of the cooling water pipe 110 and above the first three-way pipe 1102. The first solenoid valve 1101 is used to control the water flow rate inside the cooling water pipe 110. The first three-way pipe 1102 is used to connect the cooling water pipe 110 and the branch pipe 210. The second three-way pipe 1103 is used to connect the cooling water pipe 110 and the return pipe 220.
[0041] In the specific configuration, the left end of the diversion pipe 210 is connected to the right end of the first tee pipe 1102, and the left end of the return pipe 220 is connected to the right end of the second tee pipe 1103. The diversion pipe 210 is used to directly transport the cooling water in the cooling water pipe 110 to the pumping pipe 130, so that it can flow through the inside of the drain pump 120. While flowing, it can cool the inside of the drain pump 120. The return pipe 220 is used to transport the water used for cooling in the drain pipe 140 back to the inside of the cooling water pipe 110, so that it can continue to perform cooling work.
[0042] In a specific configuration, the surface of the pumping pipe 130 is connected to a third tee pipe 1301, and the lower end of the branch pipe 210 is connected to the upper end of the third tee pipe 1301. The third tee pipe 1301 is used to connect the pumping pipe 130 and the branch pipe 210.
[0043] In a specific configuration, a second solenoid valve 1401 is installed at the upper end of the surface of the drain pipe 140. A fourth three-way pipe 1402 is connected to the surface of the drain pipe 140 and below the second solenoid valve 1401. The right end of the return pipe 220 is connected to the left end of the fourth three-way pipe 1402. The second solenoid valve 1401 is used to control the flow rate of water in the drain pipe 140, and the fourth three-way pipe 1402 is used to connect the drain pipe 140 and the return pipe 220.
[0044] In the specific configuration, a third solenoid valve 2101 is provided on the surface of the diversion pipe 210, a fourth solenoid valve 2201 is provided on the surface of the return pipe 220, and a temperature sensor and a microcontroller are provided on the surface of the drain pump 120. The third solenoid valve 2101 is used to control the flow rate of water inside the diversion pipe 210, and the fourth solenoid valve 2201 is used to control the flow rate of water inside the return pipe 220.
[0045] In the specific setup, the output of the temperature sensor is connected to the input of the microcontroller, and the inputs of the first solenoid valve 1101, the second solenoid valve 1401, the third solenoid valve 2101, and the fourth solenoid valve 2201 are all connected to the output of the microcontroller. The temperature controller is used to detect the internal temperature of the drain pump 120 and transmit the monitoring data to the microcontroller in the form of an electrical signal. The microcontroller can automatically control the opening and closing of the first solenoid valve 1101, the second solenoid valve 1401, the third solenoid valve 2101, and the fourth solenoid valve 2201 according to the temperature data, thereby automatically cooling the drain pump 120.
[0046] In the specific setup, a fixing ring 2301 is fixedly connected to the inner cavity of the fixing pipe 230. A water baffle 2302 is movably connected to the inner cavity of the fixing pipe 230 and to the left of the fixing ring 2301 via a rotating shaft. The fixing ring 2301 is used to fix the sealing gasket 2303 and limit the water baffle 2302, so that it can only deflect to the left. The water baffle 2302 plays a role in limiting the water flow, so that the water flow can only flow from right to left inside the return pipe 220.
[0047] In the specific setup, a sealing gasket 2303 is fixedly connected to the left side of the fixing ring 2301, and the right side of the sealing gasket 2303 contacts the left side of the sealing gasket 2303. The sealing gasket 2303 is used to seal the gap between the fixing ring 2301 and the water baffle 2302 to reduce the amount of water seepage.
[0048] The working principle of the vertical high-temperature drainage pump cooling device is as follows: Under normal circumstances, cooling water is directly transported to the fixed drainage well through the cooling water pipe 110. The temperature sensor on the surface of the drainage pump 120 monitors the internal temperature of the drainage pump 120 in real time and transmits the monitoring data to the microcontroller in the form of an electrical signal. The microcontroller can automatically control the opening and closing of the first solenoid valve 1101, the second solenoid valve 1401, the third solenoid valve 2101 and the fourth solenoid valve 2201 according to the temperature data.
[0049] When the drainage pump 120 is working, it can simultaneously perform cooling. At this time, the first solenoid valve 1101 and the fourth solenoid valve 2201 are closed, and the second solenoid valve 1401 and the third solenoid valve 2101 are open. While the drainage pump 120 pumps water from the fixed discharge well through the pumping pipe 130, the cooling water is transported to the pumping pipe 130 through the cooling water pipe 110 and the diversion pipe 210, so that the cooling water can flow through the interior of the drainage pump 120 to achieve the cooling effect, and finally discharged through the drainage pipe 140 along with the water pumped from the fixed discharge well.
[0050] When the drainage pump 120 stops, it can be cooled down. At this time, the second solenoid valve 1401 is closed, and the third solenoid valve 2101 and the fourth solenoid valve 2201 are opened. The external cooling water is transported through the cooling water pipe 110 to the inside of the diversion pipe 210, and then from the diversion pipe 210 to the inside of the pumping pipe 130. When it passes through the drainage pump 120, it can be cooled down. Finally, it is transported back to the cooling water pipe 110 through the drainage pipe 140 and the return pipe 220. At this time, the first solenoid valve 1101 can be opened to transport the cooling water back to the fixed discharge well.
[0051] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.
Claims
1. A vertical high temperature drainage pump cooling device, characterized by, include The main structure (10) includes a cooling water pipe (110), a drainage pump (120), a water suction pipe (130), and a drainage pipe (140). The water suction pipe (130) is fixedly connected to the water inlet of the drainage pump (120), and the drainage pipe (140) is fixedly connected to the water outlet of the drainage pump (120). The cooling structure (20) includes a distribution pipe (210), a return pipe (220), and a fixed pipe (230). The distribution pipe (210) is located between the cooling water pipe (110) and the water pumping pipe (130). The return pipe (220) is located between the cooling water pipe (110) and the drain pipe (140). The fixed pipe (230) is located on the surface of the return pipe (220).
2. A vertical high temperature drainage pump cooling device according to claim 1, characterized in that, The upper end of the cooling water pipe (110) is connected to an external cooling water source, and the left end of the pumping pipe (130) is connected to an external drainage well.
3. A vertical high temperature drainage pump cooling device according to claim 1, characterized in that, A first solenoid valve (1101) is provided at the lower end of the surface of the cooling water pipe (110), a first tee pipe (1102) is connected to the surface of the cooling water pipe (110) and above the first solenoid valve (1101), and a second tee pipe (1103) is connected to the surface of the cooling water pipe (110) and above the first tee pipe (1102).
4. A vertical high temperature drainage pump cooling device according to claim 3, characterized in that, The left end of the diversion pipe (210) is connected to the right end of the first tee pipe (1102), and the left end of the return pipe (220) is connected to the right end of the second tee pipe (1103).
5. A vertical high temperature drainage pump cooling device according to claim 1, characterized in that, The surface of the pumping pipe (130) is connected to a third tee pipe (1301), and the lower end of the diversion pipe (210) is connected to the upper end of the third tee pipe (1301).
6. A vertical high temperature drainage pump cooling device according to claim 3, characterized in that, A second solenoid valve (1401) is provided at the upper end of the surface of the drain pipe (140), and a fourth three-way pipe (1402) is connected to the surface of the drain pipe (140) and below the second solenoid valve (1401). The right end of the return pipe (220) is connected to the left end of the fourth three-way pipe (1402).
7. A vertical high temperature drainage pump cooling device according to claim 6, characterized in that The surface of the diversion pipe (210) is provided with a third solenoid valve (2101), the surface of the return pipe (220) is provided with a fourth solenoid valve (2201), and the surface of the drain pump (120) is provided with a temperature sensor and a microcontroller.
8. A vertical high temperature drainage pump cooling device according to claim 7, characterized in that The output of the temperature sensor is connected to the input of the microcontroller, and the inputs of the first solenoid valve (1101), the second solenoid valve (1401), the third solenoid valve (2101), and the fourth solenoid valve (2201) are all connected to the output of the microcontroller.
9. A vertical high temperature drainage pump cooling device according to claim 1, characterized in that, A fixing ring (2301) is fixedly connected to the inner cavity of the fixing pipe (230), and a water baffle (2302) is movably connected to the inner cavity of the fixing pipe (230) and located to the left of the fixing ring (2301) via a rotating shaft.
10. A vertical high temperature drainage pump cooling device according to claim 9, characterized in that A sealing gasket (2303) is fixedly connected to the left side of the fixing ring (2301), and the right side of the sealing gasket (2303) contacts the left side of the sealing gasket (2303).