Steam drainage recycling system used in factory building

Abstract

The utility model discloses a steam drainage recycling system for a plant, and relates to the technical field of steam recycling. The heat exchange pool is arranged on one side of the steam drainage pool and used for conducting heat exchange on internal closed water and steam drainage fed into the steam drainage pool, the water storage pool is arranged on one side of the heat exchange pool and used for collecting the steam drainage after heat exchange, and a second pool cover is movably arranged at the top of the heat exchange pool; and a spiral heat exchange pipe for steam to flow in a hydrophobic manner is arranged in the heat exchange pool. According to the steam drain water recycling device, steam drain water and closed water in the heat exchange pool can be subjected to heat exchange through the spiral heat exchange pipe, the closed water with the temperature becoming higher after heat exchange can be used by boilers and other water using ends in a plant area, and therefore the steam drain water is recycled, and the driving mechanism can drive the stirring blades to rotate; the closed water in the heat exchange pool is stirred and mixed, so that the temperature difference of the closed water in the heat exchange pool is not easy to exist, and the heat exchange efficiency can be improved.

Description

Technical Field

[0001] This utility model relates to the field of steam recycling technology, and in particular to a steam condensate recycling system for use in factories. Background Technology

[0002] Special Medical Foods (STFS) are a type of nutritional food formulated for special medical purposes. STFS play a vital role in addressing chronic diseases. By utilizing nutritional diets, STFS provides patients with new treatment options, reduces their financial burden, and ensures they receive necessary medical services. The production process of STFS products utilizes a large amount of steam for heating high-temperature pharmaceutical tanks and providing heating for air conditioning on the production line. After heating, the high-temperature steam is cooled and condensed into 80°C hot water. Because the steam condensate discharge temperature can reach 80°C, the condensed water quality meets tap water standards, allowing for the reuse of the steam condensate.

[0003] Patent CN219510614U discloses "a PCB industry steam condensate recycling system, including a steam condensate tank, a heat exchanger, and a water storage tank. The input end of the steam condensate tank is connected to the production plant via a pipeline. By setting up the steam condensate tank, the steam condensate after use in the production plant is collected and pumped to the heat exchanger to heat the sealed water. The heated sealed water can be used for other hot water applications in the plant area, while the steam condensate after heat exchange enters the water storage tank for further treatment. This system effectively utilizes thermal energy and water resources, avoiding resource waste."

[0004] Regarding the aforementioned technologies, the inventors believe that the enclosed water in the heat exchanger is prone to temperature differences. For example, the water temperature near the hot water coil will be higher, while the water temperature near the heat exchanger shell will be lower, thereby reducing the thermal conductivity between the enclosed water and the steam condensate in the hot water coil, and thus reducing the efficiency of heat exchange. Therefore, improvements are needed. Utility Model Content

[0005] This utility model addresses the shortcomings of existing technologies by providing a steam condensate recovery system for factory buildings. The specific technical solution is as follows:

[0006] A steam condensate recycling system for a factory includes a steam condensate tank, a heat exchange tank located on one side of the steam condensate tank for exchanging heat between the closed water inside and the steam condensate fed into the steam condensate tank, and a water storage tank located on one side of the heat exchange tank for collecting the steam condensate after heat exchange. The top of the heat exchange tank is movably provided with a second tank cover, and the heat exchange tank is provided with a spiral heat exchange pipe for supplying steam condensate flow. The heat exchange tank is also provided with a stirring mechanism.

[0007] The stirring mechanism includes a threaded rod rotatably disposed in the heat exchange tank, a rotating rod fixedly disposed at the bottom end of the threaded rod, stirring blades fixedly disposed on the outer wall of the bottom end of the rotating rod and located inside the heat exchange tube, and a driving mechanism disposed on the top of the second tank cover for driving the threaded rod to rotate. A fixing plate is fixedly disposed on the top of the inner wall of the heat exchange tank, and a threaded hole is opened in the fixing plate for the threaded rod to be screwed in after the second tank cover is slightly raised.

[0008] By adopting the above technical solution, the spiral heat exchange tube can exchange heat between the steam condensate and the closed water in the heat exchange tank. The drive mechanism can drive the stirring blades to rotate, so as to stir and mix the closed water in the heat exchange tank, making it less likely for there to be a temperature difference in the closed water in the heat exchange tank, thereby improving the efficiency of heat exchange.

[0009] Optionally, a water pump for sending steam condensate into the heat exchange pipe is fixedly installed at the bottom of the inner wall of the steam condensate tank, a first tank cover is movably provided on the top of the steam condensate tank, and an insulation layer is fixedly provided on the outer wall of the steam condensate tank and the heat exchange tank.

[0010] By adopting the above technical solution, the steam condensate tank and the heat exchange tank can be covered by the first tank cover, making it difficult for the water in the steam condensate tank and the heat exchange tank to evaporate naturally, thus reducing the waste of water resources.

[0011] Optionally, a closed water inlet pipe for supplying closed water is fixedly provided at the top of the inner wall of the heat exchange tank, and a closed water drain pipe for discharging the closed water after heat exchange is fixedly provided at the bottom of the inner wall of the heat exchange tank. A booster pump for pressurizing the closed water after heat exchange is fixedly installed at one end of the closed water drain pipe.

[0012] By adopting the above technical solution, the closed water inlet pipe can continuously send closed water into the heat exchange tank. The closed water in the heat exchange tank can exchange heat with the steam condensate in the heat exchange pipe, so that the temperature of the closed water outlet can reach 40-50°C. The heated closed water can be discharged through the closed water drain pipe and pressurized by a booster pump. The pressurized and heated closed water can be used by boilers and other water-using terminals in the plant area, thereby reusing the steam condensate and reducing resource waste.

[0013] Optionally, the driving mechanism includes a motor fixedly mounted on the top of the second pool cover, a threaded rod fixedly mounted at the bottom of the motor output end, the motor output end penetrating the second pool cover and extending into the threaded hole of the fixing plate, a rotating ring fixedly mounted on the outer wall of the motor output end, the rotating ring being rotatably connected inside the second pool cover, and a limiting rod fixedly mounted at the bottom of the second pool cover, the bottom end of which penetrates through and extends to the outside of the fixing plate.

[0014] By adopting the above technical solution, when the second pool cover is slightly lifted upwards, the threaded rod can be screwed into the threaded hole of the fixed plate under the drive of the motor, thereby driving the second pool cover to rise automatically, making it easier for the staff to open the second pool cover.

[0015] In summary, this utility model has at least one of the following beneficial effects:

[0016] 1. The spiral heat exchange tubes can exchange heat between the steam condensate and the closed water in the heat exchange tank. The closed water with a higher temperature after heat exchange can be used by other water-using terminals such as boilers in the plant area, thereby reusing the steam condensate. The drive mechanism can drive the stirring blades to rotate, so as to stir and mix the closed water in the heat exchange tank, making it less likely for there to be a temperature difference in the closed water in the heat exchange tank, thereby improving the efficiency of heat exchange.

[0017] 2. The first pool cover and other covers can cover the steam condensate pool and heat exchange pool, making it difficult for the water in the steam condensate pool and heat exchange pool to evaporate naturally and reduce water waste. The steam condensate after heat exchange can be discharged into the water storage pool for water quality testing. The qualified steam condensate can be used as tap water, and the unqualified steam condensate can be used as reclaimed water, thus systematically reusing the steam condensate. When the second pool cover is slightly lifted, the threaded rod can be screwed into the threaded hole of the fixing plate under the drive of the motor, thereby driving the second pool cover to rise automatically, making it easier for the staff to open the second pool cover. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a front sectional view of the overall structure of this utility model;

[0020] Figure 3 This is the utility model Figure 2 Enlarged view of the structure of the intermediate heat exchanger;

[0021] Figure 4 This is a top view of the rotating ring of this utility model.

[0022] Explanation of reference numerals in the attached drawings: 1. Steam trap; 11. Water pump; 12. First tank cover; 2. Heat exchange tank; 21. Heat exchange pipe; 22. Second tank cover; 23. Threaded rod; 24. Rotating rod; 25. Stirring blade; 26. Fixing plate; 27. Motor; 28. Rotating ring; 29. ​​Limiting rod; 3. Water storage tank; 4. Sealed water inlet pipe; 41. Sealed water outlet pipe; 42. Booster pump; 5. Insulation layer. Detailed Implementation

[0023] The following is in conjunction with the appendix Figure 1-4 The present invention will be described in further detail below.

[0024] This utility model discloses a steam condensate recovery system for use in a factory, referring to... Figure 1-2 It includes a steam condensate tank 1, a heat exchange tank 2, and a water storage tank 3. The steam condensate tank 1, the heat exchange tank 2, and the water storage tank 3 are all installed inside the factory building. The steam condensate tank 1 can collect the steam condensate that is condensed and cooled after the production of special medical products. One end of the top of the steam condensate tank 1 is fixed with an inlet pipe for the steam condensate that is condensed and cooled to flow into the steam condensate tank 1.

[0025] Reference Figure 1-3 The heat exchange tank 2 is located on one side of the steam condensate tank 1. The heat exchange tank 2 is used to exchange heat between the closed water inside itself and the steam condensate sent into the steam condensate tank 1. The heat exchange tank 2 is provided with a spiral heat exchange tube 21 for the flow of steam condensate. The heat exchange tube 21 is in the shape of a spiral coil. A water pump 11 is fixedly installed at the bottom of the inner wall of the steam condensate tank 1 to send steam condensate into the heat exchange tube 21. The steam condensate tank 1 can send the steam condensate inside itself into the heat exchange tube 21 through the water pump 11, and the water pump 11 and the heat exchange tube 21 can be provided with a conduit for connection.

[0026] Reference Figure 1-3 A closed water inlet pipe 4 is fixedly installed at the top of the inner wall of the heat exchange tank 2 for supplying closed water, and a closed water drain pipe 41 is fixedly installed at the bottom of the inner wall of the heat exchange tank 2 for discharging the closed water after heat exchange. A booster pump 42 for pressurizing the closed water after heat exchange is fixedly installed at one end of the closed water drain pipe 41. The closed water inlet pipe 4 can continuously send closed water into the heat exchange tank 2. The closed water in the heat exchange tank 2 can exchange heat with the steam condensate in the heat exchange pipe 21, so that the temperature of the closed water outlet can reach 40-50°C. The heated closed water can be discharged through the closed water drain pipe 41 and pressurized by the booster pump 42, so that the pressurized and heated closed water can be used by boilers and other water-using terminals in the plant area, thereby reusing the steam condensate and reducing the waste of resources.

[0027] Reference Figure 1-3 A first cover 12 is movably provided on the top of the steam condensate tank 1. An insulation layer 5 is fixedly provided on the outer wall of the steam condensate tank 1 and the heat exchange tank 2. A second cover 22 is movably provided on the top of the heat exchange tank 2. The first cover 12 can cover the steam condensate tank 1, making it difficult for the water in the steam condensate tank 1 to evaporate naturally. The second cover 22 can cover the heat exchange tank 2, making it difficult for the water in the heat exchange tank 2 to evaporate naturally. The insulation layer 5 can be made of materials with insulation effect such as insulation board. The insulation layer 5 can protect the steam condensate tank 1 and the heat exchange tank 2 to reduce the heat loss at the steam condensate tank 1 and the heat exchange tank 2.

[0028] Reference Figure 1-2The water storage tank 3 is located on one side of the heat exchange tank 2 and is used to collect steam condensate after heat exchange. The top of the heat exchange pipe 21 can send the steam condensate with reduced temperature after heat exchange into the water storage tank 3 through a conduit. The water storage tank 3 temporarily stores the steam condensate. A drain pipe for drainage is fixed at the bottom of the inner wall of the water storage tank 3. A valve can be installed at one end of the drain pipe. The steam condensate after heat exchange can be discharged into the water storage tank 3 for water quality testing. The steam condensate that passes the test can be used as tap water, and the steam condensate that fails the test can be used as reclaimed water, thereby systematically reusing the steam condensate.

[0029] Reference Figure 2-3 The heat exchange tank 2 is equipped with a stirring mechanism, which includes a threaded rod 23 rotatably installed inside the heat exchange tank 2, a rotating rod 24 fixed at the bottom end of the threaded rod 23, a stirring blade 25 fixed on the outer wall of the bottom end of the rotating rod 24 and located inside the heat exchange tube 21, and a drive mechanism installed on the top of the second tank cover 22 for driving the threaded rod 23 to rotate. After the drive mechanism is running, it will drive the threaded rod 23, the rotating rod 24 and the stirring blade 25 to rotate. After the stirring blade 25 rotates, it will stir and mix the closed water in the heat exchange tank 2, so that there is less temperature difference in the closed water in the heat exchange tank 2, thereby making the closed water in the heat exchange tank 2 heat the steam condensate in the heat exchange tube 21 evenly, thereby improving the efficiency of heat exchange.

[0030] Reference Figure 1-3 The driving mechanism includes a motor 27 fixedly mounted on the top of the second tank cover 22. After the motor 27 is running, it will drive the threaded rod 23, the rotating rod 24 and the stirring blade 25 to rotate. The motor 27 can rotate forward and reverse. This is a public technology and will not be described in detail here. The second tank cover 22 can support and fix the motor 27.

[0031] Reference Figure 2-4 A fixing plate 26 is fixedly installed on the top of the inner wall of the heat exchange tank 2. The fixing plate 26 has a threaded hole for the threaded rod 23 to be screwed in after the second tank cover 22 is slightly raised. The threaded rod 23 is fixedly installed at the bottom of the output end of the motor 27. The output end of the motor 27 passes through the second tank cover 22 and extends into the threaded hole of the fixing plate 26. A rotating ring 28 is fixedly installed on the outer wall of the output end of the motor 27. The rotating ring 28 is rotatably connected inside the second tank cover 22. A limiting rod 29 with its bottom end passing through and extending to the outside of the fixing plate 26 is fixedly installed at the bottom of the second tank cover 22. The rotating ring 28 can further connect the output end of the motor 27 and the second tank cover 22, and the rotating ring 28 can support the bottom stirring blades 25 and other components, reducing the load on the motor 27. The limiting rod 29 can limit the second tank cover 22, so that the second tank cover 22 can be raised and lowered.

[0032] When the second pool cover 22 needs to be opened, the operator can control the motor 27 to reverse and slightly lift the second pool cover 22. At this time, the slightly raised threaded rod 23 can be screwed into the threaded hole of the fixing plate 26 under the drive of the motor 27. With the limit rod 29 limiting the second pool cover 22, the threaded rod 23 will automatically raise the second pool cover 22 after rotation, making it easier for the operator to open the second pool cover 22.

[0033] The implementation principle of a steam condensate recovery system in a factory according to an embodiment of this utility model is as follows:

[0034] In use, the vapor condensate tank 1 can collect the vapor condensate that condenses and cools down after the production of special medical products. The vapor condensate tank 1 can send the vapor condensate inside itself to the heat exchange tube 21 through the water pump 11. The closed water inlet pipe 4 can continuously send closed water into the heat exchange tank 2. The closed water in the heat exchange tank 2 can exchange heat with the vapor condensate in the heat exchange tube 21, so that the temperature of the closed water outlet can reach 40-50°C. The heated closed water can be discharged through the closed water drain pipe 41 and pressurized by the booster pump 42, so that the pressurized and heated closed water can be used by boilers and other water-using terminals in the factory area. The vapor condensate after heat exchange can be discharged into the water storage tank 3 for water quality testing. The qualified vapor condensate can be used as tap water, and the unqualified vapor condensate can be used as reclaimed water, thereby systematically reusing the vapor condensate and reducing the waste of resources.

[0035] At the same time, the motor 27 can be turned on. After the motor 27 is running, it will drive the threaded rod 23, the rotating rod 24 and the stirring blade 25 to rotate. After the stirring blade 25 rotates, it will stir and mix the closed water in the heat exchange tank 2, so that there is less temperature difference in the closed water in the heat exchange tank 2. In this way, the closed water in the heat exchange tank 2 can be heated evenly with the steam condensate in the heat exchange tube 21, thereby improving the efficiency of heat exchange.

[0036] When the second pool cover 22 needs to be opened, the operator can control the motor 27 to reverse and slightly lift the second pool cover 22. At this time, the slightly raised threaded rod 23 can be screwed into the threaded hole of the fixing plate 26 under the drive of the motor 27. With the limit rod 29 limiting the second pool cover 22, the threaded rod 23 will automatically raise the second pool cover 22 after rotation, making it easier for the operator to open the second pool cover 22. At this time, the operator can inspect and maintain the heat exchange pool 2 after the second pool cover 22 is opened.

[0037] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A steam condensate recycling system for a factory, comprising a steam condensate tank (1), a heat exchange tank (2) disposed on one side of the steam condensate tank (1) for exchanging heat between the closed water inside the tank and the steam condensate fed into the steam condensate tank (1), and a water storage tank (3) disposed on one side of the heat exchange tank (2) for collecting the steam condensate after heat exchange, characterized in that: The heat exchange tank (2) is provided with a second tank cover (22) on top. The heat exchange tank (2) is provided with a spiral heat exchange tube (21) for steam and water flow. The heat exchange tank (2) is provided with a stirring mechanism. The stirring mechanism includes a threaded rod (23) rotatably disposed in the heat exchange tank (2), a rotating rod (24) fixedly disposed at the bottom end of the threaded rod (23), a stirring blade (25) fixedly disposed on the outer wall of the bottom end of the rotating rod (24) and located inside the heat exchange tube (21), and a driving mechanism disposed on the top of the second tank cover (22) for driving the threaded rod (23) to rotate. A fixing plate (26) is fixedly disposed on the top of the inner wall of the heat exchange tank (2), and a threaded hole is provided in the fixing plate (26) for the threaded rod (23) to be screwed in after the second tank cover (22) is slightly raised.

2. A steam condensate recovery system for a factory building according to claim 1, characterized in that: A water pump (11) for sending steam condensate into the heat exchange tube (21) is fixedly installed at the bottom of the inner wall of the steam condensate tank (1).

3. A steam condensate recovery system for a factory building according to claim 1, characterized in that: The top of the steam condensate tank (1) is provided with a first tank cover (12), and the outer walls of the steam condensate tank (1) and the heat exchange tank (2) are fixedly provided with a heat insulation layer (5).

4. A steam condensate recovery system for a factory building according to claim 1, characterized in that: The heat exchange tank (2) has a closed water inlet pipe (4) fixedly installed on the top of its inner wall for allowing closed water to enter.

5. A steam condensate recovery system for a factory building according to claim 1, characterized in that: The bottom of the inner wall of the heat exchange tank (2) is fixedly provided with a closed water drain pipe (41) for discharging the closed water after heat exchange. One end of the closed water drain pipe (41) is fixedly installed with a booster pump (42) for pressurizing the closed water after heat exchange.

6. A steam condensate recovery system for a factory building according to claim 1, characterized in that: The drive mechanism includes a motor (27) fixedly mounted on the top of the second pool cover (22), and a threaded rod (23) fixedly mounted at the bottom of the output end of the motor (27). The output end of the motor (27) passes through the second pool cover (22) and extends into the threaded hole of the fixing plate (26).

7. A steam condensate recovery system for a factory building according to claim 6, characterized in that: The output end of the motor (27) is fixedly provided with a rotating ring (28), which is rotatably connected inside the second pool cover (22).

8. A steam condensate recovery system for a factory building according to claim 7, characterized in that: The bottom of the second pool cover (22) is fixed with a limiting rod (29) that extends through the bottom end and to the outside of the fixing plate (26).

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