Waste heat recovery device for chemical gas

Abstract

The utility model discloses a waste heat recovery device for chemical gas, which comprises a gas delivery pipe, a lower box body and an upper box body, the upper box body and the lower box body are respectively distributed up and down and are assembled by a flange, and an adaptive hole for the gas delivery pipe to penetrate through is formed between the upper box body and the lower box body; the heat exchange assembly comprises a lining plate and a water tank, and the lower box body is of a hollow-out structure in the middle. According to the waste heat recovery device for the environment-friendly chemical gas, the upper box body and the lower box body are arranged, the upper box body and the lower box body are spliced through flanges and can be directly arranged outside an original gas conveying pipe in a sleeving mode, the original gas conveying pipe does not need to be modified, the installation convenience and flexibility of an operator are improved, and meanwhile the waste heat recovery device is convenient to use. By means of indirect heat exchange between the heat exchange assembly and the gas conveying pipe, compared with direct introduction of chemical gas for heat exchange, the problem that the chemical gas leaks and overflows does not need to be worried about, and potential safety hazards are reduced.

Description

Technical Field

[0001] The utility model relates to a waste heat recovery device, in particular to a waste heat recovery device for chemical gas. Background Art

[0002] Chinese patent CN217179358U discloses an environmentally friendly waste heat recovery device for chemical gas, including a bottom plate, a gas generating device and a box body located at the upper end of the bottom plate, a bottom pipe located at the bottom of the box body is arranged inside the box body, an exhaust pipe connected to the bottom pipe is arranged on the outer wall of the box body, a plurality of cooling pipes connected to the bottom pipe are arranged at the upper end of the bottom pipe, and a heat exchange pipe is wound on the inner wall of the cooling pipe. When the structure is in use, the liquid inlet seat on the box body is docked with the designated liquid supply device, so as to ensure that the low-temperature liquid in the heat exchange pipe on the inner wall of the cooling pipe can be always present, thereby ensuring that the heat exchange process of the structure can operate normally, and the low-temperature liquid will be heated to a high-temperature liquid after heat exchange, and the liquid outlet seat on the other side of the box body can be docked with the bathroom water pipe or the kitchen water pipe in the factory, so as to supply hot water to the bathroom or the kitchen, thereby improving the waste heat recovery and utilization effect of the structure.

[0003] With the deepening of energy conservation and emission reduction, the existing waste heat recovery devices for chemical gases are developing towards miniaturization. On the one hand, miniaturized waste heat recovery devices are easier to achieve flexibility and mobility. On the other hand, they are easy to maintain and manage, reducing costs. Although the above-mentioned existing technology meets the miniaturization requirements in terms of structure, in actual use, the patent directly introduces chemical gases into the box through an air duct for heat exchange. When the sealing does not meet the requirements, it is easy to cause chemical gases to overflow, posing certain safety hazards. In addition, when deploying existing chemical gas pipelines, it is not convenient for installers to perform modification operations. Utility Model Content

[0004] In view of the shortcomings of the prior art, the utility model provides a waste heat recovery device for chemical gases, which solves the problem that the existing miniaturized waste heat recovery devices for chemical gases have certain safety hazards and are inconvenient for operators to modify and deploy existing chemical gas pipelines.

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

[0006] The utility model is a waste heat recovery device for chemical gas, including a gas pipeline, a lower box body and an upper box body, wherein the upper box body and the lower box body are respectively distributed in the upper and lower parts and the two are flange-assembled and an adapter hole for the gas pipeline to pass through is formed between the two. A heat exchange component is embedded in the upper box body, and the heat exchange component includes an inner lining plate and a water tank. The inner lining plate is an arc-shaped panel structure and is installed on the top of the gas pipeline in an axial direction of the gas pipeline. The water tank is mounted on the top of the inner lining plate through a plurality of fins. The two sides of the water tank are diagonally distributed and respectively provided with a first external pipe and a second external pipe extending vertically outward. The first external pipe and the second external pipe both pass through the upper box body and are respectively welded to the two side walls of the upper box body. The lower box body is a hollow structure in the middle. The upper box body can be directly mounted on the outside of the gas pipeline by assembling with the flange of the lower box body. At the same time, the upper box body provides structural support for the embedding of the heat exchange component.

[0007] Preferably, it also includes a mounting platform welded to the interior of the lower box body and having a trapezoidal platform structure, the bottom of the mounting platform is hollowed out and a fan is embedded therein, and the bottom of the lower box body is covered and installed with a filter. The lower box body is further structurally optimized and cooperated with the fan to further optimize the heat exchange effect by introducing wind flow into the box body.

[0008] Preferably, the upper box body comprises a box seat and a sealing plate, and the sealing plate is covered and installed on the top of the box seat. The upper box body is structurally optimized to be split into a detachable box seat and a sealing plate, which are separately arranged, thereby increasing the convenience of disassembly and assembly and further improving the practicality.

[0009] Preferably, thermally conductive silicone is coated between the inner lining plate and the gas pipe, a plurality of fins are parallel to each other and evenly distributed at equal distances along the axial direction of the inner lining plate, a plurality of fins are vertically welded to the outer wall of the inner lining plate, and the water tank is welded to the top of a plurality of fins. Among them, by integrating the various structural components, the heat exchange assembly can be integrated into one component, so that in the production process, the heat exchange assembly can be prefabricated in advance to facilitate the subsequent overall disassembly and assembly of the heat exchange assembly.

[0010] Preferably, a plurality of guide plates are welded on the outer side wall of the top of the water tank, and the guide plates are vertically welded on the water tank and are staggered left and right along the length of the water tank. The outer wall of the top of the box is structurally optimized to slow down the wind flow rate and further improve the heat exchange effect.

[0011] As a rule, it also includes bushings respectively mounted on the outside of the gas pipe connection and the connection, and gaskets are embedded on the inner sides of the flanges of the upper box body and the lower box body. Among them, by adding bushings and gaskets, the structural splicing between the upper box body and the lower box body is further optimized, and the sealing and reliability of the splicing are optimized.

[0012] Therefore, the utility model has the following beneficial effects: by providing an upper box body and a lower box body, the upper box body and the lower box body can be directly installed on the outside of the original gas pipeline through flange assembly, and there is no need to modify the original gas pipeline, which improves the convenience and flexibility of installation for operators. At the same time, by means of indirect heat exchange with the gas pipeline by means of the heat exchange component, compared with the traditional direct use of chemical gas for heat exchange, there is no need to worry about the leakage and overflow of chemical gas, which greatly reduces the safety hazard. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the utility model.

[0014] Figure 2 It is a schematic diagram of the split structure of the utility model.

[0015] Figure 3 It is a schematic diagram of the dissected structure of the upper box body of the utility model.

[0016] Figure 4 It is a structural schematic diagram of the heat exchange component of the utility model.

[0017] Figure 5 It is a structural schematic diagram of the upper box body of the utility model.

[0018] Figure 6 It is a structural schematic diagram of the lower box body of the utility model.

[0019] In the figure: 100, air pipe; 200, lower box body; 210, mounting platform; 220, fan; 230, filter; 300, upper box body; 310, box seat; 320, sealing plate; 400, heat exchange component; 410, inner lining plate; 420, water tank; 430, fin; 440, first external pipe; 450, second external pipe; 460, guide plate; 500, bushing; 600, gasket. DETAILED DESCRIPTION

[0020] The utility model is further described below in conjunction with the accompanying drawings and specific implementation methods.

[0021] like Figure 1-Figure 6The waste heat recovery device for chemical gas shown in the figure includes a gas pipeline 100, a lower box body 200 and an upper box body 300. The upper box body 300 and the lower box body 200 are respectively arranged in an upper and lower manner and are flange-assembled to form an adapter hole for the gas pipeline 100 to pass through. A heat exchange component 400 is embedded in the upper box body 300. The heat exchange component 400 includes an inner lining plate 410 and a water tank 420. The inner lining plate 410 is an arc-shaped panel structure and is arranged along the gas pipeline 100. 0 is axially fitted and covered on the top of the gas pipe 100, the water tank 420 is mounted on the top of the inner lining plate 410 through a plurality of fins 430, and the two sides of the water tank 420 are diagonally distributed with a first external tube 440 and a second external tube 450 extending vertically outward, the first external tube 440 and the second external tube 450 both penetrate the upper box body 300 and are respectively welded to the two side walls of the upper box body 300, and the lower box body 200 is a hollow structure in the middle.

[0022] Based on the above-mentioned structural setting, the waste heat recovery device for chemical gas is composed of a gas pipeline 100, a lower box body 200, an upper box body 300 and a heat exchange component 400. In the working process, the chemical gas is transported along the gas pipeline 100. When the gas passes through the box body formed by the flange assembly of the upper box body 300 and the lower box body 200, the heat exchange component 400 recovers the waste heat of the passing gas. Specifically, with the help of the inner lining plate 410, the heat of the passing gas is successively transferred from the wall of the gas pipeline 100, the inner lining plate 410 and a plurality of fins 430 to the water tank 420, and under the cooperation of the first external pipe 440 and the second external pipe 450 and the water tank 420, the heat of the passing gas can be recovered in the water tank. Water is continuously supplied in 420, and then with the help of a continuous flow of water, combined with the chemical gas continuously transported in the gas pipe 100, uninterrupted heat exchange can be achieved. The waste heat recovery device for chemical gas is provided with an upper box body 300 and a lower box body 200. The upper box body 300 and the lower box body 200 can be directly mounted on the outside of the original gas pipe 100 through flange assembly, without the need to modify the original gas pipeline, thereby improving the convenience and flexibility of installation for operators. At the same time, by means of indirect heat exchange with the gas pipe 100, compared with the traditional direct use of chemical gas for heat exchange, there is no need to worry about the leakage and overflow of chemical gas, thereby greatly reducing safety hazards.

[0023] Furthermore, it also includes a mounting platform 210 welded inside the lower box body 200 and having a trapezoidal platform structure, the bottom of the mounting platform 210 is hollowed out and embedded with a fan 220, and the bottom of the lower box body 200 is covered and installed with a filter screen 230. Preferably, by embedding the mounting platform 210 and the fan 220 in the hollow cavity of the lower box body 200, the fan 220 can be used to draw air into the box body composed of the upper box body 300 and the lower box body 200, and the heat can be further blown to the water tank 420 with the wind flow. The mounting platform 210 with a trapezoidal platform structure is used to form air outlets on both sides, which helps the wind flow to flow slowly inside the box body, ensuring the heat exchange effect. In addition, the setting of the filter screen 230 can isolate impurities from the outside of the filter screen 230 during the air induction process.

[0024] Furthermore, the upper box body 300 includes a box seat 310 and a sealing plate 320, and the sealing plate 320 is covered and installed on the top of the box seat 310. Specifically, the sealing plate 320 is made of rock wool board, which has good thermal insulation effect and can prevent a large amount of residual heat from being transmitted through the sealing plate 320. The sealing plate 320 is fixedly assembled on the top of the upper box body 300 by a number of screws. When the sealing plate 320 is removed from the top of the box seat 310, the box seat 310 is a hollow box body structure connected from top to bottom, which is convenient for operators to install, disassemble and maintain internal components.

[0025] Furthermore, thermally conductive silicone is coated between the inner lining plate 410 and the gas pipe 100, and a plurality of fins 430 are parallel to each other and evenly distributed at equal distances along the axial direction of the inner lining plate 410. The plurality of fins 430 are vertically welded to the outer wall of the inner lining plate 410, and the water tank 420 is welded to the top of the plurality of fins 430. The inner lining plate 410 cooperates with the thermally conductive silicone to form a heat exchange path with the gas pipe 100, and under the action of the plurality of fins 430, the waste heat can be effectively transferred to the water tank 420. In actual use, the water tank 420, the inner lining plate 410 and the plurality of fins 430 can be prefabricated into an integral component in the production process to facilitate production installation and subsequent maintenance and replacement.

[0026] Furthermore, a plurality of guide plates 460 are welded on the outer side wall of the top of the water tank 420. The guide plates 460 are vertically welded on the water tank 420 and are staggered left and right in sequence along the length direction of the water tank 420. The guide plates 460 are provided to cooperate with the fan 220. When the introduced wind flow passes between the top of the water tank 420 and the inner top wall of the upper box body 300, under the action of the guide plates 460, on the one hand, heat exchange can be further performed, and on the other hand, the wind flow velocity can be effectively slowed down, thereby further ensuring the heat exchange effect.

[0027] Furthermore, it also includes bushings 500 respectively mounted on the outside of the access and outlet of the gas pipe 100, and gaskets 600 are embedded on the inner sides of the flanges of the upper box body 300 and the lower box body 200. The bushings 500 and the gaskets 600 are both made of thermal insulation cotton. On the one hand, the bushings 500 serve as interference fit parts for the upper box body 300 and the lower box body 200 to be assembled on the outside of the gas pipe 100. On the other hand, in conjunction with the two gaskets 600, the sealing of the assembly of the upper box body 300 and the lower box body 200 can be ensured, thereby ensuring the thermal insulation effect.

[0028] The above-described embodiment is only a preferred solution of the present invention and does not limit the present invention in any form. There are other variations and modifications without exceeding the technical solution described in the claims.

Claims

1. A waste heat recovery device for chemical gas, characterized in that: The invention comprises an air delivery pipe (100), a lower box body (200) and an upper box body (300), wherein the upper box body (300) and the lower box body (200) are arranged in an upper and a lower position respectively and are flange-assembled and an adapter hole is formed between the two for the air delivery pipe (100) to pass through; a heat exchange component (400) is embedded in the upper box body (300), and the heat exchange component (400) comprises an inner lining plate (410) and a water tank (420); the inner lining plate (410) is in an arc-shaped panel structure and fits and covers the air delivery pipe (100) along the axial direction. Installed on the top of the gas transmission pipe (100), the water tank (420) is mounted above the inner lining plate (410) through a plurality of fins (430), and a first external pipe (440) and a second external pipe (450) are respectively provided on both sides of the water tank (420) in a diagonally distributed manner, both of which extend vertically outwards, and the first external pipe (440) and the second external pipe (450) both penetrate the upper box body (300) and are respectively welded to the two side walls of the upper box body (300); the lower box body (200) is a hollow structure in the middle.

2. A waste heat recovery device for chemical gas according to claim 1, characterized in that: It also comprises a mounting platform (210) welded to the inside of the lower box body (200) and presenting a trapezoidal platform structure, the bottom of the mounting platform (210) being hollowed out and having a fan (220) embedded therein, and the bottom of the lower box body (200) being covered and installed with a filter screen (230).

3. The waste heat recovery device for chemical gas according to claim 1, characterized in that: The upper box body (300) comprises a box seat (310) and a sealing plate (320), wherein the sealing plate (320) is installed and covered on the top of the box seat (310).

4. A waste heat recovery device for chemical gas according to claim 1, characterized in that: Thermally conductive silicone is coated between the inner lining plate (410) and the gas transmission pipe (100); the plurality of fins (430) are parallel to each other and evenly distributed at equal distances along the axial direction of the inner lining plate (410); the plurality of fins (430) are vertically welded to the outer wall of the inner lining plate (410); and the water tank (420) is welded to the top of the plurality of fins (430).

5. The waste heat recovery device for chemical gas according to claim 1, characterized in that: A plurality of guide plates (460) are welded to the outer side wall of the top of the water tank (420); the plurality of guide plates (460) are vertically welded to the water tank (420) and are alternately distributed left and right along the length direction of the water tank (420).

6. A waste heat recovery device for chemical gas according to claim 1, characterized in that: It also includes bushings (500) respectively sleeved on the outside of the gas pipe (100) at the inlet and outlet, and gaskets (600) are embedded on the inner sides of the flanges of the upper box body (300) and the lower box body (200).

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