Condensate heat recovery device for pure water station

Abstract

This utility model relates to the field of waste heat recovery technology, specifically a condensate heat recovery device for a pure water station. It includes a recovery tank, a heat exchange tank, and an annular filter. The heat exchange tank is located above the recovery tank, and the annular filter is installed inside. A water supply pipe, communicating with the inner part of the recovery tank, is located on the outer side of the upper part of the recovery tank. This utility model has a reasonable and compact structure and is easy to use. By setting up a condensate coil, steam is guided, delaying the steam's time in the heat exchange tank and improving the heat exchange effect. By setting up a condensate output pipeline located at the lower end inside the recovery tank, the condensate generated in the condensate coil is collected, achieving the recovery and utilization of condensate and reducing resource waste. By setting up an annular filter, impurities in the condensate are removed and filtered, preventing impurities from clogging the circulation pipeline. It features stability, high efficiency, and good heat exchange effect.

Description

Technical Field

[0001] This utility model relates to the field of waste heat recovery and treatment technology, and is a heat recovery device for condensate water in a pure water station. Background Technology

[0002] The core technology of pure water equipment is reverse osmosis membrane technology. Its principle is to force water molecules and ionized minerals through a membrane layer under pressure, while dissolved inorganic salts (including heavy metals), organic matter, and microorganisms (such as bacteria and viruses) are blocked and retained by the membrane. This technology is widely used in high-purity water applications such as industrial electronic cleaning and food and beverage processing to ensure that water quality meets stringent standards.

[0003] In industries such as pharmaceuticals and food, pure steam (high-purity steam) is a crucial means of ensuring system sterility. Through high temperature and pressure (typically 121°C for 30 minutes), it thoroughly inactivates heat-resistant microorganisms such as spores and fungal spores, effectively maintaining the sterility of pipes, tanks, and other equipment in pure water treatment plants. Furthermore, steam can also serve as a heat source in the pure water preparation process, used for preheating raw water or maintaining system temperature, thus ensuring process stability.

[0004] Steam condensate, as a product of energy conversion, is often directly discharged without being recycled. Condensate is liquid water formed by the condensation of steam, representing the liquid medium after steam releases heat. Although saturated steam is widely used in industry due to its advantages of easy temperature control, uniform heating, high heat transfer efficiency, and low cost, most companies currently only recover the condensate itself, requiring further cooling treatment and failing to reuse the waste heat of the steam. This results in a double waste of water resources and energy, necessitating the optimization of recovery technologies to improve energy efficiency. Summary of the Invention

[0005] This utility model provides a condensate heat recovery device for a pure water station, which overcomes the shortcomings of the prior art and can effectively solve the problem of direct discharge of condensate after steam heat recovery.

[0006] The technical solution of this utility model is achieved through the following measures: A condensate heat recovery device for a pure water station includes a recovery tank, a heat exchange tank, and an annular filter screen. The heat exchange tank is located above the recovery tank, and the annular filter screen is located inside the recovery tank. A water inlet pipe that can communicate with the inside of the recovery tank is located on the outer side of the upper part of the recovery tank, and a drain pipe that can communicate with the inside of the recovery tank is located on the outer side of the lower part of the recovery tank. A steam pipeline is located inside the heat exchange tank, which includes a steam input pipeline, a condensate coil, and a condensate output pipeline connected in sequence. The upper end of the steam input pipeline is located above the heat exchange tank, and the lower end of the condensate output pipeline is located inside the recovery tank and inside the annular filter screen. A hot water exchange pipe that can communicate with the inside of the heat exchange tank is located on the outer side of the lower part of the heat exchange tank. A condensate recovery pipeline is fixedly connected between the outer side of the upper part of the heat exchange tank and the outer side of the lower part of the recovery tank, and a delivery pump is installed on the condensate recovery pipeline.

[0007] The following are further optimizations and / or improvements to the above-mentioned utility model technical solution: The above may also include a support plate, a linkage shaft, a drive device, and stirring blades. Two support plates are fixedly installed at left and right intervals between the upper side of the recovery box and the lower side of the heat exchange box. A linkage shaft is provided at the position between the two support plates. The upper part of the linkage shaft is located inside the heat exchange box and in the center of the condensing coil. Several stirring blades are provided at vertical intervals on the outer side of the upper part of the linkage shaft. A drive device capable of driving the linkage shaft to rotate is provided at the position between the upper side of the recovery box and the lower side of the heat exchange box.

[0008] The above may also include a cleaning frame and a cleaning brush. The lower part of the linkage shaft is located inside the recycling box and in the center of the annular filter screen. A cleaning frame is fixedly installed at the lower end of the linkage shaft. The cleaning frame is U-shaped with the opening facing downwards. Cleaning brushes capable of cleaning the inside of the annular filter screen are provided on the left and right sides of the cleaning frame.

[0009] The aforementioned drive device may include a drive motor, a drive box, a drive bevel gear, and a driven bevel gear. A driven bevel gear is provided on the outside of the linkage shaft corresponding to the position between the upper side of the recovery box and the lower side of the heat exchange box. A drive box is installed on the lower side of the heat exchange box corresponding to the position outside the driven bevel gear. A drive motor is provided on the outside of the drive box. The output shaft of the drive motor is located inside the drive box and has a drive bevel gear on its outside that can mesh with the driven bevel gear.

[0010] The above may also include a bottom cover and a rubber sealing block. A drain hole is provided in the center of the lower side of the recycling bin. A ring filter screen is fixedly installed in the recycling bin corresponding to the position of the drain hole. The upper part of the ring filter screen is fixedly installed together with the inner side of the top of the recycling bin. A bottom cover is fixedly installed on the lower side of the recycling bin. A rubber sealing block located in the drain hole is fixedly installed in the center of the bottom cover. The outer side of the upper end of the rubber sealing block is in contact with the inner side of the lower end of the ring filter screen.

[0011] The above may also include on / off valves, with on / off valves installed on the water inlet pipe, drain pipe, and hot water exchange pipe.

[0012] The above may also include a transfer pump, and a condensate recovery pipeline is fixedly connected between the upper outer side of the heat exchange box and the lower outer side of the recovery box, with a transfer pump installed on the condensate recovery pipeline.

[0013] This utility model has a reasonable and compact structure and is easy to use. By setting up a condenser coil, the steam is guided to slow down the steam's time in the heat exchange box, thereby improving the heat exchange effect. By setting up a condensate outlet pipeline located at the lower end in the recovery tank, the condensate generated in the condenser coil is collected, realizing the recovery and utilization of condensate and reducing resource waste. By setting up an annular filter screen, the condensate is removed and filtered to prevent impurities generated in the condensate from clogging the circulation pipeline. It has the characteristics of stability, high efficiency and good heat exchange effect. Attached Figure Description

[0014] Appendix Figure 1 This is a three-dimensional structural diagram of embodiments 1 to 6 of this utility model. Figure 1 .

[0015] Appendix Figure 2 This is a three-dimensional structural diagram of embodiments 1 to 6 of this utility model. Figure 2 .

[0016] Appendix Figure 3 This is a three-dimensional structural diagram of embodiments 1 to 6 of this utility model. Figure 3 .

[0017] Appendix Figure 4 For the appendix Figure 3 A magnified structural diagram of point A in the middle.

[0018] Appendix Figure 5 This is a schematic diagram of the three-dimensional structure of the recycling bin.

[0019] The codes in the attached diagram are as follows: 1 is the recovery box, 2 is the heat exchange box, 3 is the condensate coil, 4 is the linkage shaft, 5 is the agitator blade, 6 is the condensate recovery pipeline, 7 is the transfer pump, 8 is the condensate output pipeline, 9 is the steam input pipeline, 10 is the annular filter screen, 11 is the drain hole, 12 is the bottom cover, 13 is the rubber sealing block, 15 is the cleaning rack, 16 is the cleaning brush, 17 is the drive box, 18 is the drive motor, 19 is the drive bevel gear, 20 is the driven bevel gear, 21 is the switch valve, 22 is the water inlet pipe, 23 is the drain pipe, and 24 is the hot water exchange pipe. Detailed Implementation

[0020] This utility model is not limited to the following embodiments, and the specific implementation method can be determined according to the technical solution of this utility model and the actual situation.

[0021] In this utility model, for ease of description, the description of the relative positions of the components is based on the appendix to the specification. Figure 1 The layout is described using a diagrammatic method, such as front, back, top, bottom, left, right, etc. The positional relationships are determined based on the layout direction of the attached diagram in the instruction manual.

[0022] The present invention will be further described below with reference to the embodiments and accompanying drawings: Example 1: As shown in the attached document Figure 1 , 2As shown in Figures 3, 4, and 5, the condensate heat recovery device of the pure water station includes a recovery tank 1, a heat exchange tank 2, and an annular filter screen 10. The heat exchange tank 2 is located above the recovery tank 1, and the annular filter screen 10 is located inside the recovery tank 1. A water supply pipe 22 that can communicate with the inside of the recovery tank 1 is located on the outer side of the upper part of the recovery tank 1, and a drain pipe 23 that can communicate with the inside of the recovery tank 1 is located on the outer side of the lower part of the recovery tank 1. A steam pipeline is located inside the heat exchange tank 2. The steam pipeline includes a steam input pipeline 9, a condensate coil 3, and a condensate output pipeline 8 that are connected in sequence. The upper end of the steam input pipeline 9 is located above the heat exchange tank 2, and the lower end of the condensate output pipeline 8 is located inside the recovery tank 1 and inside the annular filter screen 10. A hot water exchange pipe 24 that can communicate with the inside of the heat exchange tank 2 is located on the outer side of the lower part of the heat exchange tank 2. A condensate recovery pipeline 6 is fixedly connected between the outer side of the upper part of the heat exchange tank 2 and the outer side of the lower part of the recovery tank 1. A delivery pump 7 is installed on the condensate recovery pipeline 6. During operation, the condenser coil 3 guides the steam flow, delaying its time in the heat exchange box 2 and improving heat exchange efficiency. A condensate outlet pipeline 8, located at the lower end of the recovery tank 1, collects the condensate generated in the condenser coil 3, achieving condensate recovery and utilization, thus reducing resource waste. A ring filter 10 removes impurities from the condensate and filters it, preventing blockages in the circulation pipeline. Specifically, the condensate flows into the recovery tank 1 (or, water is added to the recovery tank 1 via the water inlet pipe 22). The input pump draws water from the recovery tank 1 into the heat exchange box 2 via the condensate recovery pipeline 6. Steam enters the condenser coil 3 in the heat exchange box 2 via the steam inlet pipeline 9. The steam passes through the condenser coil 3 and completes heat exchange and condensation with the water in the heat exchange box 2. The condensate from the steam flows into the recovery tank 1 via the condensate outlet pipeline 8 for recovery. The water after heat exchange is discharged from the heat exchange box 2 via the hot water exchange pipe 24.

[0023] The above-mentioned condensate heat recovery device for the pure water station can be further optimized and / or improved according to actual needs: Example 2: As shown in the attached document Figure 1 , 2 As shown in Figures 3, 4, and 5, the system also includes support plates, a linkage shaft 4, a drive device, and stirring blades 5. Two support plates are fixedly installed at intervals between the upper side of the recovery tank 1 and the lower side of the heat exchange tank 2. A linkage shaft 4 is positioned between the two support plates. The upper part of the linkage shaft 4 is located inside the heat exchange tank 2 and in the center of the condensing coil 3. Several stirring blades 5 are spaced vertically on the outer side of the upper part of the linkage shaft 4. A drive device is provided on the linkage shaft 4 at the position between the upper side of the recovery tank 1 and the lower side of the heat exchange tank 2 to drive its rotation. During use, by setting the stirring blades 5 to rotate with the linkage shaft 4, the water in the heat exchange tank 2 can be stirred, keeping the water temperature in the upper, middle, and lower parts of the heat exchange tank 2 synchronized, and keeping the surface of the condensing coil 3 at a uniform temperature, thereby improving the heat exchange effect and increasing the conversion rate of steam to condensate.

[0024] Example 3: As shown in the attached document Figure 1 , 2 As shown in Figures 3, 4, and 5, the system also includes a cleaning frame 15 and a cleaning brush 16. The lower part of the linkage shaft 4 is located inside the recycling bin 1 and in the center of the annular filter screen 10. The cleaning frame 15 is fixedly installed at the lower end of the linkage shaft 4. The cleaning frame 15 is U-shaped with its opening facing downwards. Cleaning brushes 16 are provided on both the left and right sides of the cleaning frame 15 to clean the inside of the annular filter screen 10. During use, by setting the cleaning frame 15 to rotate with the linkage shaft 4, the cleaning brushes 16 clean the annular filter screen 10.

[0025] Example 4: As shown in the appendix Figure 1 , 2 As shown in Figures 3, 4, and 5, the drive unit includes a drive motor 18, a drive box 17, a drive bevel gear 19, and a driven bevel gear 20. The driven bevel gear 20 is located on the outer side of the linkage shaft 4, corresponding to the position between the upper side of the recovery box 1 and the lower side of the heat exchange box 2. The drive box 17 is installed on the lower side of the heat exchange box 2, corresponding to the outer position of the driven bevel gear 20. The drive motor 18 is located on the outer side of the drive box 17. The output shaft of the drive motor 18 is located inside the drive box 17, and the drive bevel gear 19, which meshes with the driven bevel gear 20, is located on its outer side. During use, this arrangement facilitates the synchronous rotation of the stirring blades 5 and the cleaning frame 15.

[0026] Example 5: As shown in the attached document Figure 1 , 2 As shown in Figures 3, 4, and 5, the system also includes a bottom cover 12 and a rubber sealing block 13. A drain hole 11 is located at the center of the lower side of the recycling bin 1. A ring-shaped filter screen 10 is fixedly installed inside the recycling bin 1 at the location corresponding to the drain hole 11. The upper end of the ring-shaped filter screen 10 is fixedly installed to the inner top of the recycling bin 1. A bottom cover 12 is fixedly installed on the lower side of the recycling bin 1. A rubber sealing block 13 is fixedly installed in the center of the bottom cover 12, located inside the drain hole 11. The outer upper end of the rubber sealing block 13 contacts the inner lower end of the ring-shaped filter screen 10. During use, the drain hole 11 facilitates quick drainage and replacement of the ring-shaped filter screen 10 after removing the bottom cover 12; the rubber sealing block 13 maintains the seal at the drain hole 11.

[0027] Example 6: As shown in the appendix Figure 1 , 2 As shown in Figures 3, 4, and 5, the system also includes a switch valve 21. Switch valves 21 are also installed on the water inlet pipe 22, the drain pipe 23, and the hot water exchange pipe 24. During use, the switch valves 21 facilitate control.

[0028] The above technical features constitute the preferred embodiment of this utility model, which has strong adaptability and the best implementation effect. Unnecessary technical features can be added or removed according to actual needs to meet the needs of different situations.

Claims

1. A condensate heat recovery device for a pure water station, characterized in that... The system includes a recovery tank, a heat exchange tank, and a ring-shaped filter. The heat exchange tank is located above the recovery tank, and the ring-shaped filter is located inside the recovery tank. A water inlet pipe is located on the outer side of the upper part of the recovery tank, which is connected to the inside of the tank. A drain pipe is located on the outer side of the lower part of the recovery tank, which is also connected to the inside of the tank. A steam pipeline is located inside the heat exchange tank, which includes a steam inlet pipeline, a condensate coil, and a condensate outlet pipeline connected in sequence. The upper end of the steam inlet pipeline is located above the heat exchange tank, and the lower end of the condensate outlet pipeline is located inside the recovery tank and within the ring-shaped filter. A hot water exchange pipe is located on the outer side of the lower part of the heat exchange tank, which is connected to the inside of the tank. A condensate recovery pipeline is fixedly connected between the outer side of the upper part of the heat exchange tank and the outer side of the lower part of the recovery tank, and a delivery pump is installed on the condensate recovery pipeline.

2. The condensate heat recovery device for a pure water station according to claim 1, characterized in that... It also includes support plates, linkage shafts, drive devices, and stirring blades. Two support plates are fixedly installed at left and right intervals between the upper side of the recovery tank and the lower side of the heat exchange tank. A linkage shaft is provided at the position between the two support plates. The upper part of the linkage shaft is located inside the heat exchange tank and in the center of the condensing coil. Several stirring blades are provided at intervals on the outer side of the upper part of the linkage shaft. A drive device capable of driving the linkage shaft to rotate is provided at the position between the upper side of the recovery tank and the lower side of the heat exchange tank.

3. The condensate heat recovery device for a pure water station according to claim 2, characterized in that... It also includes a cleaning frame and cleaning brushes. The lower part of the linkage shaft is located inside the recycling box and in the center of the annular filter screen. The cleaning frame is fixedly installed at the lower end of the linkage shaft. The cleaning frame is U-shaped with the opening facing downwards. The left and right sides of the cleaning frame are equipped with cleaning brushes that can clean the inside of the annular filter screen.

4. The condensate heat recovery device for a pure water station according to claim 3, characterized in that... The drive unit includes a drive motor, a drive box, a drive bevel gear, and a driven bevel gear. A driven bevel gear is provided on the outside of the linkage shaft corresponding to the position between the upper side of the recovery box and the lower side of the heat exchange box. A drive box is installed on the lower side of the heat exchange box corresponding to the position outside the driven bevel gear. A drive motor is provided on the outside of the drive box. The output shaft of the drive motor is located inside the drive box and has a drive bevel gear on its outside that can mesh with the driven bevel gear.

5. The pure water station condensate heat recovery device according to claim 1, 2, 3, or 4, characterized in that... It also includes a bottom cover and a rubber sealing block. A drain hole is provided in the center of the bottom side of the recycling bin. A ring-shaped filter screen is fixedly installed inside the recycling bin corresponding to the position of the drain hole. The upper part of the ring-shaped filter screen is fixedly installed together with the inner side of the top of the recycling bin. A bottom cover is fixedly installed on the bottom side of the recycling bin. A rubber sealing block located in the drain hole is fixedly installed in the center of the bottom cover. The outer side of the upper end of the rubber sealing block is in contact with the inner side of the lower end of the ring-shaped filter screen.

6. The pure water station condensate heat recovery device according to claim 1, 2, 3, or 4, characterized in that... It also includes on / off valves, which are installed on the water supply pipe, drain pipe, and hot water exchange pipe.

7. The condensate heat recovery device of the pure water station according to claim 5, characterized by It also includes on / off valves, which are installed on the water supply pipe, drain pipe, and hot water exchange pipe.

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