Steam waste heat recycling device

By introducing U-shaped tubes and filter mesh structures into the boiler steam circulation device, the problems of low waste heat recovery efficiency and waste of water resources are solved, and efficient steam waste heat recovery and environmental protection are achieved.

CN223091085UActive Publication Date: 2025-07-11THREE GORGES ELECTRIC POWER JINZHOU ENERGY (HUBEI) CO LTD
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Patent Information

Application Number
CN202422050481.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-22
Publication Date
2025-07-11
Estimated Expiration
2034-08-22

AI Technical Summary

Technical Problem

The existing boilers have problems of low waste heat recovery efficiency and waste of water resources, and impurities in the steam enter the waste heat recovery device to affect the operation effect.

Method used

A steam waste heat reuse device is designed, including a steam circulation mechanism in the box, a circulation path composed of the first and second U-shaped tubes is used, and a filter net is installed on the intake and outlet pipes, and the steam is filtered through the filter net, and the L-shaped plate and threaded cylinder are conveniently installed to achieve full contact between steam and water and impurity filtration.

Benefits of technology

It improves waste heat recovery efficiency, reduces waste of water resources, ensures the use environment of the device, and facilitates the cleaning and maintenance of the filter.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223091085U_ABST
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Abstract

The utility model discloses a steam waste heat recycling device which comprises a box body, a steam circulating mechanism is arranged in the box body and comprises a first U-shaped pipe, a connecting pipe and a second U-shaped pipe, the connecting pipe is connected with the second U-shaped pipe through the connecting pipe, and an air inlet pipe and an air outlet pipe are respectively communicated on the steam circulating mechanism. The air inlet pipe and the air outlet pipe are each provided with a first filter screen and a second filter screen, an L-shaped plate is fixed to the first filter screen and clamped to the air inlet pipe, and a circular ring is fixed to the second filter screen. The steam circulating mechanism is arranged in the box body, meanwhile, the steam circulating mechanism is composed of the first U-shaped pipe, the connecting pipe and the second U-shaped pipe, the first U-shaped pipe and the second U-shaped pipe can increase full contact between internal boiler steam and a water source in the box body, and the steam circulating mechanism is integrally installed in the box body. And the waste heat recovery efficiency is effectively improved, and boiler steam can be used by the steam waste heat recycling device.
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Description

Technical Field

[0001] The utility model relates to the technical field of boiler steam waste heat reuse, in particular to a steam waste heat reuse device. Background Technique

[0002] A boiler mainly consists of two parts: a pot and a furnace. The hot water or steam generated in the boiler can directly provide the required heat energy for industrial production and people's livelihood, or can be converted into mechanical energy through a steam power device, or further converted into electrical energy through a generator. A boiler that provides hot water is called a hot water boiler, which is mainly used for life and has a small amount of application in industrial production. A boiler that generates steam is called a steam boiler, often simply referred to as a boiler, and is mostly used in thermal power plants, ships, locomotives, and industrial and mining enterprises. When a steam boiler is in use, a large amount of hot steam will be generated. Direct discharge will cause waste of heat energy and water resources. Steam waste heat refers to the utilizable heat energy released during the production process. Steam has a wide range of uses in many different application industries, including energy production, industrial manufacturing, heating and air conditioning, chemical industry, oil and gas processing, food and beverage production, pharmaceutical industry, pulp and paper industry, automotive industry, and mining industry, etc.

[0003] At present, some boilers on the market lack waste heat recovery, resulting in low thermal utilization efficiency and large resource losses. Moreover, the water vapor generated during the operation of the boiler is not utilized, causing waste of water resources. Most of the existing industrial steam heat energy waste heat recovery and reuse devices recover the heat in the steam through cold water, but the contact between the cold water and the steam during the heat exchange process is not sufficient, resulting in low waste heat recovery efficiency of the device and being not conducive to use. At the same time, when the boiler is in use, there will be more impurities in the generated steam. When the impurities in the steam enter the internal part of the boiler waste heat recovery and reuse device, it is easy to affect the waste heat recovery and reuse operation, and the recovery and reuse effect is not good. Content of the Utility Model

[0004] The purpose of the utility model is to solve the problems existing in the prior art that the water vapor generated during the operation of the boiler is not utilized, causing waste of water resources. Most of the existing industrial steam heat energy waste heat recovery and reuse devices recover the heat in the steam through cold water, but the contact between the cold water and the steam during the heat exchange process is not sufficient, resulting in low waste heat recovery efficiency of the device and being not conducive to use. At the same time, when the boiler is in use, there will be more impurities in the generated steam. When the impurities in the steam enter the internal part of the boiler waste heat recovery and reuse device, it is easy to affect the waste heat recovery and reuse operation, and the recovery and reuse effect is not good, and a steam waste heat reuse device is proposed.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] A steam waste heat reuse device, comprising a box body, inside which a steam circulation mechanism is arranged. The steam circulation mechanism includes a first U-shaped pipe, a connecting pipe and a second U-shaped pipe. The connecting pipe is connected to the second U-shaped pipe through the connecting pipe. An air inlet pipe and an air outlet pipe are respectively connected to the steam circulation mechanism. First filters and second filters are installed on both the air inlet pipe and the air outlet pipe. An L-shaped plate is fixed on the first filter and is clamped on the air inlet pipe. A circular ring is fixed on the second filter, and a threaded cylinder is fixed on the circular ring. The threaded cylinder is installed inside the air outlet pipe.

[0007] Preferably, a water inlet pipe and a water outlet pipe are respectively arranged on the box body.

[0008] Preferably, side plates are fixed on the side walls of the box body.

[0009] Preferably, a clamping groove is formed inside the air inlet pipe, and the L-shaped plate is clamped on the clamping groove.

[0010] Preferably, a threaded groove is formed on the air outlet pipe, and the threaded cylinder is in threaded fit inside the threaded groove.

[0011] Preferably, two turning handles are fixed on the circular ring.

[0012] The utility model has the following beneficial effects:

[0013] 1. The steam circulation mechanism of the utility model is arranged inside the box body. At the same time, the steam circulation mechanism is composed of a first U-shaped pipe, a connecting pipe and a second U-shaped pipe. The first U-shaped pipe and the second U-shaped pipe can increase the full contact between the steam inside the internal boiler and the water source inside the box body. The steam circulation mechanism is integrally installed inside the box body, effectively improving the waste heat recovery efficiency and being beneficial to the use of the boiler steam by the steam waste heat reuse device.

[0014] 2. The utility model is provided with a first filter and a second filter on the air inlet pipe and the air outlet pipe of the steam circulation mechanism. The first filter and the second filter can filter the boiler steam inside the steam circulation mechanism, so that when the boiler steam is discharged through the air outlet pipe, it will not affect the external environment, ensuring the use environment of the steam waste heat reuse device. The first filter and the second filter installed on the air inlet pipe and the air outlet pipe through the L-shaped plate and the threaded cylinder are more convenient to disassemble and install, facilitating the user to clean and repair the L-shaped plate and the threaded cylinder. Description of the Drawings

[0015] Figure 1 is a schematic diagram of the overall structure of the box body;

[0016] Figure 2 is one of the schematic diagrams of the overall structure of the steam circulation mechanism;

[0017] Figure 3 is the other schematic diagram of the overall structure of the steam circulation mechanism;

[0018] Figure 4 It is one of the overall structural schematic diagrams of the air outlet pipe and the second filter screen;

[0019] Figure 5 It is the second of the overall structural schematic diagrams of the air outlet pipe and the second filter screen.

[0020] In the figure: 1. Box body; 101. Water inlet pipe; 102. Water outlet pipe; 103. Side plate; 2. Steam circulation mechanism; 201. First U-shaped pipe; 202. Connecting pipe; 203. Second U-shaped pipe; 3. Air inlet pipe; 301. Card slot; 4. Air outlet pipe; 401. Threaded groove; 5. First filter screen; 501. L-shaped plate; 6. Second filter screen; 601. Ring; 602. Threaded cylinder; 603. Rotating handle. Specific implementation manner

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0022] Refer to Figures 1-5 , a steam waste heat recycling device, including a box body 1, a water inlet pipe 101 and a water outlet pipe 102 are respectively arranged on the box body 1. The box body 1 conveys external water source through the water inlet pipe 101, and the water source is conveyed to the inside of the box body 1. Side plates 103 are fixedly arranged on the side walls of the box body 1, and the side plates 103 of the box body 1 are fixed at the designated positions required by the user through bolts. A steam circulation mechanism 2 is arranged inside the box body 1. The steam circulation mechanism 2 includes a first U-shaped pipe 201, a connecting pipe 202 and a second U-shaped pipe 203. The connecting pipe 202 and the second U-shaped pipe 203 are connected through the connecting pipe 202. The steam generated by the boiler is circulated through the steam circulation mechanism 2, so that the steam inside the steam circulation mechanism 2 can heat the box body 1, thereby realizing the recovery and recycling operation of the waste heat of the boiler steam.

[0023] An air inlet pipe 3 and an air outlet pipe 4 are respectively connected to the steam circulation mechanism 2. A first filter screen 5 and a second filter screen 6 are installed on both the air inlet pipe 3 and the air outlet pipe 4. The first filter screen 5 and the second filter screen 6 installed on the air inlet pipe 3 and the air outlet pipe 4 of the steam circulation mechanism 2 can filter the boiler steam inside the steam circulation mechanism 2, so that when the boiler steam is discharged through the air outlet pipe 4, it will not affect the external environment and ensure the use environment of the steam waste heat recycling device.

[0024] An L-shaped plate 501 is fixed on the first filter screen 5. The L-shaped plate 501 is an elastic plate. The L-shaped plate 501 is clamped on the air inlet pipe 3. A clamping groove 301 is opened inside the air inlet pipe 3. The L-shaped plate 501 is clamped on the clamping groove 301. A circular ring 601 is fixed on the second filter screen 6. A threaded cylinder 602 is fixed on the circular ring 601. The threaded cylinder 602 is installed inside the air outlet pipe 4. A threaded groove 401 is opened on the air outlet pipe 4. The threaded cylinder 602 is in threaded fit inside the threaded groove 401. Two turning handles 603 are fixed on the circular ring 601. The first filter screen 5 and the second filter screen 6 installed on the air inlet pipe 3 and the air outlet pipe 4 through the L-shaped plate 501 and the threaded cylinder 602 are more convenient to disassemble and install, facilitating the user to clean and repair the L-shaped plate 501 and the threaded cylinder 602.

[0025] When using a steam waste heat recycling device, external water source is conveyed into the interior of the box body 1 through the water inlet pipe 101, so that the external water source can be stored inside the box body 1. The air outlet end of the boiler is installed on the air inlet pipe 3 of the steam circulation mechanism 2 inside the box body 1. On the air inlet pipe 3, a first filter screen 5 is clamped through the clamping groove 301. The first filter screen 5 can filter the steam generated by the boiler. The steam enters the interior of the steam circulation mechanism 2 through the air inlet pipe 3. Thus, the overall circulation of the boiler steam is realized through the first U-shaped pipe 201, the connecting pipe 202 and the second U-shaped pipe 203 of the steam circulation mechanism 2, achieving the recycling of the waste heat of the boiler steam. After the recycling of the waste heat of the boiler steam is completed, the steam is discharged through the air outlet pipe 4 at the bottom of the steam circulation mechanism 2. At the same time, secondary filtration is realized through the second filter screen 6 on the air outlet pipe 4 to ensure the use of the steam waste heat recycling device. When it is necessary to disassemble the first filter screen 5 and the second filter screen 6 inside the air inlet pipe 3 and the air outlet pipe 4, respectively press the L-shaped plate 501 of the first filter screen 5 and hold the turning handle 603 to rotate the threaded cylinder 602 on the circular ring 601 of the second filter screen 6, so that the first filter screen 5 and the second filter screen 6 can be disassembled from the clamping groove 301 and the threaded groove 401 respectively, ensuring the cleaning of the first filter screen 5 and the second filter screen 6 by the user.

[0026] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and the inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A steam waste heat reuse device, comprising a box body (1), characterized in that: A steam circulation mechanism (2) is arranged inside the box body (1). The steam circulation mechanism (2) includes a first U-shaped pipe (201), a connecting pipe (202) and a second U-shaped pipe (203). The connecting pipe (202) is connected to the second U-shaped pipe (203) through the connecting pipe (202). An air inlet pipe (3) and an air outlet pipe (4) are respectively communicated with the steam circulation mechanism (2). First filter nets (5) and second filter nets (6) are installed on both the air inlet pipe (3) and the air outlet pipe (4). An L-shaped plate (501) is fixed on the first filter net (5), and the L-shaped plate (501) is clamped on the air inlet pipe (3). A ring (601) is fixed on the second filter net (6), and a threaded cylinder (602) is fixed on the ring (601). The threaded cylinder (602) is installed inside the air outlet pipe (4).

2. The steam waste heat reuse device according to claim 1, characterized in that: A water inlet pipe (101) and a water outlet pipe (102) are respectively arranged on the box body (1).

3. A steam waste heat reuse device according to claim 1, characterized in that: Side plates (103) are fixed on the side walls of the box body (1).

4. A steam waste heat recycling device according to claim 1, characterized in that: A clamping groove (301) is formed inside the air inlet pipe (3), and the L-shaped plate (501) is clamped on the clamping groove (301).

5. A steam waste heat recycling device according to claim 1, characterized in that: A threaded groove (401) is formed on the air outlet pipe (4), and the threaded cylinder (602) is in threaded fit inside the threaded groove (401).

6. The steam waste heat reuse device according to claim 1, characterized in that: Two turning handles (603) are fixed on the ring (601).