A steam waste heat recovery device for coal-fired boiler production

Abstract

The utility model relates to the field of coal -fired boiler production technology discloses a steam waste heat recovery device for coal -fired boiler production, including exchange device and processing jar body, the left and right sides of processing jar body are installed with the connecting pipeline, the exchange device is installed in the inside of processing jar body, the exchange device includes trachea, baffle and support device, the support device is installed in the top of trachea, the baffle is connected in the surface of trachea. This steam waste heat recovery device for coal -fired boiler production is provided with connecting plate, metal slide rail, metal sheet and vertical threaded rod, and the vertical threaded rod can limit the metal slide rail and connecting plate, can hold and fix trachea, when trachea conveys gas, can avoid trachea left and right movement, conveniently operates trachea, can keep the stability of trachea, can protect the safety of trachea, avoids the damage of trachea to increase the use time of the device.

Description

Technical Field

[0001] This utility model relates to the field of coal-fired boiler production technology, specifically to a steam waste heat recovery device for coal-fired boiler production. Background Technology

[0002] A coal-fired boiler is a heat energy conversion device that uses coal as its main fuel, releases heat energy through combustion, and heats water to convert it into steam or hot water. It is widely used in industrial production, heating, power generation and other fields.

[0003] The prior art discloses a steam waste heat recovery device for coal-fired boiler production, with announcement number CN217358163U. This device includes a heat exchange box with multiple sets of partitions dividing the interior into a top box, middle box, and bottom box. Gas pipes are installed inside the heat exchange box, with varying lengths in each box. The two ends of the gas pipes are positioned on opposite sides of the heat exchange box. An inlet pipe is located on one side of the heat exchange box, and multiple sets of fins are fixed to the outer wall of each gas pipe. Waste heat from the high-temperature gas is stored inside the heat exchange box and insulated by an internal insulation layer. Users can also release the liquid inside using thermometers and outlet pipes. Compared to existing structures, this device allows users to utilize steam waste heat and store gas within the heat exchange box for convenient use. The multiple thermometers and outlet pipes allow for the replacement of the internal liquid with the liquid requiring heating, and the liquid is injected in layers according to the thermometer readings to achieve different heating effects.

[0004] The heat exchanger box has an internal gas pipe with a connecting pipe at the top. However, the gas pipe is not equipped with a clamping device, which causes the gas pipe to swing left and right when transporting gas, making it difficult to connect to other pipes effectively and requiring a lot of time. Utility Model Content

[0005] The purpose of this utility model is to provide a steam waste heat recovery device for coal-fired boiler production, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a steam waste heat recovery device for coal-fired boiler production, comprising an exchange device and a processing tank, wherein connecting pipes are installed on the left and right sides of the processing tank, and the exchange device is installed inside the processing tank.

[0007] The exchange device includes an air tube, a partition, and a support device. The support device is installed on the top of the air tube, and the partition is connected to the surface of the air tube.

[0008] The support device includes a clamping unit and a spring-back unit, which are arranged sequentially from top to bottom.

[0009] The clamping unit includes a connecting plate, a fastening threaded rod is fixedly connected to the top surface of the connecting plate, and limit threaded rods are fixedly connected to the front and rear ends of the connecting plate.

[0010] Preferably, the support unit includes a metal frame, a vertical threaded rod is threadedly connected to the inner wall surface of the metal frame, a helical spring is installed on the top surface of the vertical threaded rod, a metal plate is installed on the top surface of the helical spring, and the metal plate is fixedly connected to the outer surface of the metal slide rail.

[0011] Preferably, the limiting threaded rod is slidably connected to the upper and lower ends of the metal slide rail, and the connecting plate is slidably connected to the inner wall surface of the metal slide rail. The limiting threaded rod can lock and fix the metal slide rail and the connecting plate.

[0012] Preferably, the fastening threaded rod is inserted into the top of the air tube, and the connecting plate is slidably connected to the top of the air tube. The connecting plate and the fastening threaded rod can support the air tube and protect its stability.

[0013] Preferably, the partition and the inner wall surface of the processing tank are bonded and fixed by hot melt adhesive. There are four partitions, which can divide the interior of the processing tank into three cavities, which are arranged from bottom to top as a lower cavity, a middle cavity, and an upper cavity.

[0014] Preferably, the vertical threaded rod is located inside the helical spring, and the metal plate is mounted on top of the vertical threaded rod. The vertical threaded rod and the helical spring can determine the position of the metal plate.

[0015] Preferably, the metal frame is installed on the top of the processing tank, and the metal frame is installed on the top surface of the partition, the partition and the processing tank being able to determine the position of the metal frame.

[0016] Preferably, there are four vertical threaded rods, with two vertical threaded rods forming a group. The two groups of vertical threaded rods are distributed front to back, with two vertical threaded rods on the same side distributed at the left and right ends of the metal plate. The vertical threaded rods can determine the position of the metal plate and maintain the balance of the connecting plate.

[0017] Preferably, the connecting pipes are divided into two groups, which are distributed left and right and staggered. The upper group of connecting pipes is the water inlet pipe and the lower group of connecting pipes is the water outlet pipe. A valve is installed at the outward end of the connecting pipe.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] This waste heat recovery device for steam in coal-fired boiler production is equipped with a connecting plate, a metal slide rail, a metal plate, and a vertical threaded rod. The vertical threaded rod can limit the metal slide rail and the connecting plate, clamp and fix the gas pipe, and prevent the gas pipe from moving left and right when the gas pipe is transporting gas, which facilitates the operation of the gas pipe and maintains the stability of the gas pipe.

[0020] This waste heat recovery device for steam in coal-fired boilers is equipped with a connecting plate, a limiting threaded rod, and a metal slide rail. The metal slide rail and the connecting plate are locked together by the limiting threaded rod, which facilitates the disassembly and replacement of the connecting plate. This makes the replacement of the connecting plate and the fastening threaded rod quick and convenient, thereby increasing the service life of the connecting plate. Attached Figure Description

[0021] Figure 1 This is a three-dimensional schematic diagram of the entire utility model;

[0022] Figure 2 This is a three-dimensional schematic diagram of the switching device of this utility model;

[0023] Figure 3 This is a three-dimensional schematic diagram of the support device of this utility model;

[0024] Figure 4 This utility model Figure 3 A magnified schematic diagram of the structure at point A in the diagram.

[0025] In the diagram: 1. Exchange device; 11. Air pipe; 12. Baffle; 13. Support device; 131. Metal frame; 132. Helical spring; 133. Vertical threaded rod; 134. Metal slide rail; 135. Connecting plate; 136. Fastening threaded rod; 137. Limiting threaded rod; 138. Metal plate; 2. Processing tank; 3. Connecting pipe. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figure 1-4 The present invention provides the following technical solution:

[0028] A waste heat recovery device for steam in coal-fired boiler production includes an exchange device 1 and a treatment tank 2. Connecting pipes 3 are installed on the left and right sides of the treatment tank 2. The connecting pipes 3 are divided into two groups, which are distributed left and right and staggered. The upper group of connecting pipes 3 is a water inlet pipe, and the lower group of connecting pipes 3 is a water outlet pipe. A valve is installed at the outward end of the connecting pipes 3. The exchange device 1 is installed inside the treatment tank 2.

[0029] The exchange device 1 includes an air pipe 11, a partition 12, and a support device 13. The support device 13 is installed on the top of the air pipe 11, and the partition 12 is connected to the surface of the air pipe 11. The partition 12 and the inner wall surface of the treatment tank 2 are bonded and fixed with hot melt adhesive. There are four partitions 12. The four partitions 12 can divide the interior of the treatment tank 2 into three chambers. The three chambers are, from bottom to top, the lower chamber, the middle chamber, and the upper chamber.

[0030] The support device 13 includes a clamping unit and a spring-back unit, which are arranged sequentially from top to bottom.

[0031] The clamping unit includes a connecting plate 135, and a fastening threaded rod 136 is fixedly connected to the top surface of the connecting plate 135. The fastening threaded rod 136 is inserted into the top of the air tube 11. The connecting plate 135 is slidably connected to the top of the air tube 11. The connecting plate 135 and the fastening threaded rod 136 can support the air tube 11 and protect the stability of the air tube 11. Limiting threaded rods 137 are fixedly connected to the front and rear ends of the connecting plate 135.

[0032] The support unit includes a metal frame 131, which is mounted on the top of the processing tank 2 and on the top surface of the partition 12. The partition 12 and the processing tank 2 can determine the position of the metal frame 131. The inner wall surface of the metal frame 131 is threaded with four vertical threaded rods 133, arranged in groups of two. The two groups of vertical threaded rods 133 are distributed front to back, with two vertical threaded rods 133 on the same side distributed at the left and right ends of the metal plate 138. The vertical threaded rods 133 can determine the position of the metal plate 138 and maintain the balance of the connecting plate 135. A helical spring 132 is installed on the top surface of 133. A vertical threaded rod 133 is located inside the helical spring 132. A metal plate 138 is installed on the top of the vertical threaded rod 133. The vertical threaded rod 133 and the helical spring 132 can determine the position of the metal plate 138. A metal plate 138 is installed on the top surface of the helical spring 132. The metal plate 138 is fixedly connected to the outer side surface of the metal slide rail 134. A limiting threaded rod 137 is slidably connected to the upper and lower ends of the metal slide rail 134. A connecting plate 135 is slidably connected to the inner wall surface of the metal slide rail 134. The limiting threaded rod 137 can lock and fix the metal slide rail 134 and the connecting plate 135.

[0033] When in use, open the valve at the outward end of the connecting pipe 3 to allow water to enter the interior of the treatment tank 2. The cold water inside the three chambers is connected to the surface of the air pipe 11. Then close the valve at the outward end of the connecting pipe 3 to allow the cold water inside the treatment tank 2 to be stored.

[0034] The partition 12 can divide the processing tank 2 into three chambers, namely the lower chamber, the middle chamber and the upper chamber, and the distribution of the trachea 11 in the three chambers changes from dense to sparse.

[0035] A steam pipe is connected to the bottom of the gas pipe 11. The steam generated by the coal-fired boiler passes through the gas pipe 11 and the inside of the treatment tank 2. When the gas pipe 11 passes through the three chambers, the steam inside the gas pipe 11 can heat the cold water inside the three chambers. Finally, the steam is discharged through the top of the gas pipe 11.

[0036] The nut rotates on the surface of the fastening threaded rod 136, loosening the connection between the air tube 11 and the connecting air tube. Then, the connecting air tube is pulled upwards, allowing the connecting air tube to be replaced.

[0037] Rotating the nut causes it to rotate on the surface of the limiting threaded rod 137, loosening the connection between the connecting plate 135 and the metal slide rail 134.

[0038] Pushing the fastening threaded rod 136 downwards can push the connecting plate 135 downwards. When the connecting plate 135 drives the fastening threaded rod 136 downwards, it can disengage the fastening threaded rod 136 from the top of the air pipe 11.

[0039] When the connecting plate 135 moves downward, the connecting plate 135 drives the metal slide rail 134 to move downward. The metal slide rail 134 can drive the metal plate 138 to move downward, so that the metal plate 138 slides on the surface of the vertical threaded rod 133, so that the helical spring 132 can be compressed between the metal frame 131 and the metal plate 138.

[0040] At this time, by pulling the connecting plate 135 left and right, the connecting plate 135 can drive the limiting threaded rod 137 to slide left and right on the inner wall surface of the metal slide rail 134, allowing the connecting plate 135 and the limiting threaded rod 137 to disengage from the metal slide rail 134. The connecting plate 135 and the fastening threaded rod 136 can be disassembled and replaced, and different types of connecting plates 135 and fastening threaded rods 136 can be used according to the specifications of the connecting air pipe.

[0041] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A steam waste heat recovery device for coal-fired boiler production, comprising an exchange device (1) and a processing tank (2), characterized in that: Connecting pipes (3) are installed on the left and right sides of the processing tank (2), and the exchange device (1) is installed inside the processing tank (2); The exchange device (1) includes an air tube (11), a partition (12) and a support device (13). The support device (13) is installed on the top of the air tube (11), and the partition (12) is connected to the surface of the air tube (11). The support device (13) includes a clamping unit and a spring-back unit, which are arranged from top to bottom. The clamping unit includes a connecting plate (135), a fastening threaded rod (136) is fixedly connected to the top surface of the connecting plate (135), and a limiting threaded rod (137) is fixedly connected to the front and rear ends of the connecting plate (135).

2. The steam waste heat recovery device for coal-fired boiler production according to claim 1, characterized in that: The support unit includes a metal frame (131), on which a vertical threaded rod (133) is threadedly connected to the inner wall surface. A helical spring (132) is installed on the top surface of the vertical threaded rod (133), and a metal plate (138) is installed on the top surface of the helical spring (132). The metal plate (138) is fixedly connected to the outer side surface of the metal slide rail (134).

3. The steam waste heat recovery device for coal-fired boiler production according to claim 2, characterized in that: The limiting threaded rod (137) is slidably connected to the upper and lower ends of the metal slide rail (134), and the connecting plate (135) is slidably connected to the inner wall surface of the metal slide rail (134).

4. The steam waste heat recovery device for coal-fired boiler production according to claim 3, characterized in that: The fastening threaded rod (136) is inserted into the top of the air pipe (11), and the connecting plate (135) is slidably connected to the top of the air pipe (11).

5. The steam waste heat recovery device for coal-fired boiler production according to claim 4, characterized in that: The partition (12) and the inner wall surface of the treatment tank (2) are bonded together with hot melt adhesive, and there are four partitions (12).

6. The steam waste heat recovery device for coal-fired boiler production according to claim 5, characterized in that: The vertical threaded rod (133) is located inside the helical spring (132), and the metal plate (138) is mounted on top of the vertical threaded rod (133).

7. A steam waste heat recovery device for coal-fired boiler production according to claim 6, characterized in that: The metal frame (131) is installed on the top of the processing tank (2) and on the top surface of the partition (12).

8. The steam waste heat recovery device for coal-fired boiler production according to claim 7, characterized in that: The number of vertical threaded rods (133) is four. Two vertical threaded rods (133) form a group, and the two groups of vertical threaded rods (133) are distributed front and back. The two vertical threaded rods (133) on the same side are distributed at the left and right ends of the metal plate (138).

9. A steam waste heat recovery device for coal-fired boiler production according to claim 8, characterized in that: The connecting pipes (3) are divided into two groups. The two groups of connecting pipes (3) are distributed left and right and are staggered. The upper group of connecting pipes (3) is the water inlet pipe and the lower group of connecting pipes (3) is the water outlet pipe.

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