A waste heat recovery integrated device for normal temperature negative pressure deoxygenation treatment

Abstract

The utility model discloses a kind of waste heat recovery integrated devices for normal temperature negative pressure deoxygenation treatment, it is related to petroleum chemical industry, including heat absorption component and the first connecting pipe of side end portion sliding installation, the air charging assembly is wound and installed below the first connecting pipe, the filter assembly is threadedly installed in the side end portion of the air charging assembly;The inside of the air charging assembly includes self-circulation heat exchange component.The waste heat recovery integrated device for normal temperature negative pressure deoxygenation treatment, by setting heat absorption component in flue gas duct cooperation first heat exchange tube, fin carries out heating treatment to liquid in first heat exchange tube, then cooperation second heat exchange tube, third heat exchange tube carries out heat exchange to gas in third heat exchange tube, after heat exchange, by storage box, exhaust hole gas is guided into collection box and directly contact with liquid to occur heat exchange treatment, reach device when using can further improve heat exchange efficiency, enhance recovery heat usage, improve device use effect.

Description

Technical Field

[0001] This utility model relates to the field of petrochemical technology, specifically to an integrated waste heat recovery device for room temperature negative pressure deoxygenation treatment. Background Technology

[0002] In the petrochemical industry, energy efficiency and energy conservation and emission reduction have always been important issues of great concern. Currently, we face multiple challenges such as reducing production costs, improving energy utilization, and reducing environmental pollution. In petrochemical production, the qualified flue gas exhaust temperature of the furnace is usually less than or equal to 130 degrees Celsius. If this flue gas is directly discharged into the atmosphere, the heat contained in it will be wasted. Therefore, it is necessary to recover and utilize the heat.

[0003] For example, a waste heat recovery device with announcement number CN223179329U is characterized by including a shell and two liquid storage tanks. An air inlet pipe and an air outlet pipe for steam to enter and exit the inner cavity of the shell are provided on two opposite sides of the shell. A heat absorption system is provided in the inner cavity, and the heat absorption system includes a connecting mechanism. This device solves the problem that the entire waste heat recovery device will stop operating during the replacement of the circulating water in the heat absorption system.

[0004] Most of the existing technologies mentioned above improve the overall structure. However, in the process of operation, most existing waste heat recovery devices use a condenser tube to pass through the heated liquid so that the liquid or gas in the pipe can exchange heat with the external liquid. Although this waste heat recovery method is relatively convenient, in actual use, some heat needs to be used to preheat the condenser tube, which results in a certain loss of the recovered heat and reduces the waste heat recovery effect of the device. Utility Model Content

[0005] The purpose of this invention is to provide an integrated waste heat recovery device for ambient temperature negative pressure deoxygenation treatment, so as to solve the problem of poor heat utilization efficiency of existing ambient temperature negative pressure deoxygenation waste heat recovery devices in actual use as mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an integrated waste heat recovery device for room temperature negative pressure deoxygenation treatment, comprising a heat absorption component and a first connecting pipe slidably installed at its side end. An inflation component is wound around the lower part of the first connecting pipe, and a filter component is threadedly installed at the side end of the inflation component. The inflation component includes a self-circulating heat exchange component inside, through which the gas inside the self-circulating heat exchange component first undergoes a heat exchange reaction with the structure below the first connecting pipe, thereby heating the internal gas. Subsequently, the liquid contained in the collection box is preheated through the bottom structure of the inflation component. The filter component includes a quick-release gas sieving component inside, through which the gas entering the inflation component is filtered, thereby extending the service life of the inflation component.

[0007] Furthermore, the heat absorption component includes an installation frame, with two limiting plates fixedly installed on both the left and right sides of the installation frame, and a first heat exchange tube fixedly installed inside the installation frame.

[0008] Furthermore, connecting collars are fixedly installed at both openings on the same side of the first heat exchange tube, and sixteen fins are fixedly arranged inside the mounting frame, with each fin fitted onto the outer surface of the first heat exchange tube.

[0009] Furthermore, a first connecting pipe is fixedly installed on the side end of each of the connecting collars, and a one-way valve is provided below one of the first connecting pipes. A water pump is provided on the side end of the one-way valve, and a second heat exchange pipe is sleeved below the one-way valve. The other side of the second heat exchange pipe is connected to the bottom of another first connecting pipe.

[0010] Furthermore, the self-circulating heat exchange assembly includes a third heat exchange tube, which is sleeved on the outer surface of the second heat exchange tube. A second connecting pipe is fixedly installed on one side of the third heat exchange tube, and a T-shaped pipe is installed on the other side.

[0011] Furthermore, a storage box is fixedly installed below the second connecting pipe, and the upper end of the storage box has six vent holes.

[0012] Furthermore, a collection box is provided above the storage box, and a third connecting pipe is fixedly installed on both the front and rear sides of the collection box.

[0013] Furthermore, the quick-release gas screening assembly includes an installation cylinder, on which a filter screen frame is installed by internal threads, and on which a side sealing plate is rotatably installed.

[0014] Furthermore, a sealing gasket is fixedly installed on the inner wall of the side sealing plate, a buckle is provided on the outer surface of the side sealing plate, and an air pump is provided at the side end of the mounting cylinder, with the side end of the air pump connected to the side opening of the T-tube.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This integrated waste heat recovery device for ambient temperature negative pressure deoxygenation treatment heats the liquid in the first heat exchange tube by setting the heat absorption component in the flue gas duct and cooperating with the first heat exchange tube and fins. Then, it cooperates with the second and third heat exchange tubes to exchange heat with the gas in the third heat exchange tube. After heat exchange, the gas is introduced into the collection box through the storage box and exhaust port to directly contact the liquid and undergo heat exchange. This can further improve the heat exchange efficiency, enhance the utilization rate of recovered heat, and improve the effect of the device during use.

[0017] Furthermore, when the air pump draws in external gas, the gas first passes through a filter assembly consisting of an installation cylinder and a filter screen to filter the gas. This ensures that the device can filter the gas during use, reducing impurities from entering the device and slowing down device wear. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a schematic diagram of the heat-absorbing component structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the second heat exchange tube structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the inflatable component structure of this utility model;

[0022] Figure 5 This is a schematic diagram of the filter assembly structure of this utility model;

[0023] Figure 6 This is a schematic diagram of the storage box structure of this utility model.

[0024] In the diagram: 1. Heat absorption assembly; 11. Mounting frame; 12. Limiting plate; 13. First heat exchange tube; 14. Connecting collar; 15. Fin; 16. First connecting pipe; 17. One-way valve; 18. Water pump; 19. Second heat exchange tube; 2. Air filling assembly; 21. Third heat exchange tube; 22. Second connecting pipe; 23. Storage box; 24. Exhaust port; 25. Collection box; 26. Third connecting pipe; 27. Air pump; 3. Filter assembly; 31. Mounting cylinder; 32. Filter screen frame; 33. Side sealing plate; 34. Sealing gasket; 35. Locking buckle. Detailed Implementation

[0025] 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.

[0026] Example 1: Please refer to Figures 1-4 and Figure 6 An integrated waste heat recovery device for ambient temperature negative pressure deoxygenation treatment is disclosed to address the problem of existing ambient temperature negative pressure deoxygenation equipment easily wasting exhaust heat. The device includes a heat absorption component 1 and a first connecting pipe 16 slidably mounted on its side. An inflation component 2 is wound around the bottom of the first connecting pipe 16, and a filter component 3 is threaded onto the side end of the inflation component 2. The inflation component 2 includes a self-circulating heat exchange component. The gas inside the self-circulating heat exchange component first undergoes a heat exchange reaction with the structure below the first connecting pipe 16, thereby heating the internal gas. Subsequently, the liquid contained in the collection box 25 is preheated through the bottom structure of the inflation component 2. The filter assembly 3 includes a quick-release gas sieving assembly, which filters the gas entering the inflation assembly 2, thereby extending the service life of the inflation assembly 2. The self-circulating heat exchange assembly includes a third heat exchange tube 21, which is sleeved on the outer surface of the second heat exchange tube 19. A second connecting pipe 22 is fixedly installed on one side of the third heat exchange tube 21, and a T-shaped pipe is installed on the other side. A storage box 23 is fixedly installed below the second connecting pipe 22. Six exhaust holes 24 are opened at the upper end of the storage box 23. A collection box 25 is set above the storage box 23. A third connecting pipe 26 is fixedly installed on both the front and rear sides of the collection box 25.

[0027] User based Figure 2 and Figure 3 As shown, the heat absorption component 1 is installed inside the flue gas duct along the limiting plate 12. When a large amount of high-temperature flue gas is discharged from the duct, it can pass through the inside of the mounting frame 11 and perform heat exchange with the first heat exchange tube 13 and fins 15 installed inside the mounting frame 11. The fins 15 increase the contact area, thereby improving the heating efficiency of the liquid flowing in the first heat exchange tube 13. Then, the water pump 18 is started. The water pump 18, in conjunction with the one-way valve 17 and the first connecting pipe 16, allows the liquid in the first heat exchange tube 13 to circulate between the first connecting pipe 16, the one-way valve 17, the second heat exchange tube 19, and the first heat exchange tube 13. At this time, according to Figure 4 , Figure 6The demonstration shows that the user starts the air pump 27 to draw external gas into the third heat exchange tube 21 and transport it upwards. The third heat exchange tube 21 exchanges heat with the second heat exchange tube 19, thereby heating the gas inside the third heat exchange tube 21. The gas is then transported into the storage box 23 through the second connecting pipe 22 and discharged outwards through the exhaust port 24 on the top of the storage box 23. The user then connects the liquid delivery pipe that needs to be deoxygenated to the third connecting pipe 26 and introduces the liquid into the collection box 25. At this time, the gas discharged from the exhaust port 24 will come into direct contact with the liquid, thereby undergoing a heat exchange reaction and heating the liquid. At the same time, the top of the storage box 23 can further increase the heating area of ​​the liquid and improve the heat exchange efficiency.

[0028] Example 2: Figure 1 and Figure 5 The technical solution shown, based on Embodiment 1, further discloses, in order to solve the problem of pipe blockage that easily occurs in the actual use of existing integrated waste heat recovery devices for ambient temperature negative pressure deoxygenation treatment, that: the heat absorption component 1 includes an internal mounting frame 11, with two limiting plates 12 fixedly installed on both the left and right sides of the mounting frame 11; a first heat exchange tube 13 is fixedly installed inside the mounting frame 11; connecting collars 14 are fixedly installed at two openings on the same side of the first heat exchange tube 13; sixteen fins 15 are fixedly arranged inside the mounting frame 11, each fin 15 is sleeved on the outer surface of the first heat exchange tube 13; and a first... The connecting pipe 16 has a one-way valve 17 installed below it, a water pump 18 installed on the side of the one-way valve 17, a second heat exchange pipe 19 sleeved below the one-way valve 17, and the other side of the second heat exchange pipe 19 connected to the bottom of the other first connecting pipe 16. The quick-release gas screening assembly includes an installation cylinder 31, a filter screen frame 32 installed on the internal thread of the installation cylinder 31, a side sealing plate 33 rotatably installed on the outer surface of the installation cylinder 31, a sealing gasket 34 fixedly installed on the inner wall of the side sealing plate 33, a buckle 35 provided on the outer surface of the side sealing plate 33, and an air pump 27 installed on the side end of the installation cylinder 31, the side end of the air pump 27 connected to the side opening of the T-shaped pipe.

[0029] User based Figure 5 The demonstration shows that when the air pump 27 is in use, it works with the side filter assembly 3 to draw in outside air. When the air is drawn into the filter assembly 3, it first passes through the filter screen 32 to filter impurities, preventing contamination during subsequent heat exchange with the liquid. When it is necessary to clean the inside, the user slides the latch 35 to unlock it, and then pulls the side handle of the side sealing plate 33 to rotate the side sealing plate 33. The rotation of the side sealing plate 33 moves the sealing gasket 34, thereby exposing the inside of the mounting cylinder 31. Then, the user can remove the filter screen 32 from the mounting cylinder 31 for cleaning.

[0030] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0031] Although the present invention 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 invention should be included within the protection scope of the present invention.

Claims

1. An integrated waste heat recovery device for room temperature negative pressure deoxygenation treatment, comprising a heat absorption component (1) and a first connecting pipe (16) slidably installed at the side end, wherein an inflation component (2) is wound around the bottom of the first connecting pipe (16), and a filter component (3) is threadedly installed at the side end of the inflation component (2). Its features are: The interior of the inflation assembly (2) includes a self-circulating heat exchange assembly. The gas inside the self-circulating heat exchange assembly first exchanges heat with the structure below the first connecting pipe (16) to heat the gas inside. Then, the liquid in the collection box (25) is preheated through the bottom structure of the inflation assembly (2). The filter assembly (3) includes a quick-release gas sieving assembly, which filters the gas entering the inflation assembly (2) to extend the service life of the inflation assembly (2).

2. The waste heat recovery integrated device for ambient temperature negative pressure deoxygenation treatment according to claim 1, characterized in that: The heat absorption component (1) includes an installation frame (11) inside. Two limiting plates (12) are fixedly installed on both the left and right sides of the installation frame (11). A first heat exchange tube (13) is fixedly installed inside the installation frame (11).

3. The waste heat recovery integrated device for ambient temperature negative pressure deoxygenation treatment according to claim 2, characterized in that: A connecting collar (14) is fixedly installed at both openings on the same side of the first heat exchange tube (13). Sixteen fins (15) are fixedly arranged inside the mounting frame (11), and each fin (15) is sleeved on the outer surface of the first heat exchange tube (13).

4. The waste heat recovery integrated device for ambient temperature negative pressure deoxygenation treatment according to claim 3, characterized in that: Each of the connecting collars (14) has a first connecting pipe (16) fixedly installed on its side end. A one-way valve (17) is provided below one of the first connecting pipes (16). A water pump (18) is provided on the side end of the one-way valve (17). A second heat exchange pipe (19) is sleeved below the one-way valve (17). The other side of the second heat exchange pipe (19) is connected to the bottom of another first connecting pipe (16).

5. The integrated waste heat recovery device for ambient temperature negative pressure deoxygenation treatment according to claim 4, characterized in that: The self-circulating heat exchange assembly includes a third heat exchange tube (21), which is sleeved on the outer surface of the second heat exchange tube (19). A second connecting pipe (22) is fixedly installed on one side of the third heat exchange tube (21), and a T-shaped pipe is installed on the other side.

6. The waste heat recovery integrated device for ambient temperature negative pressure deoxygenation treatment according to claim 5, characterized in that: A storage box (23) is fixedly installed below the second connecting pipe (22), and the upper end of the storage box (23) is provided with six exhaust holes (24).

7. The waste heat recovery integrated device for ambient temperature negative pressure deoxygenation treatment according to claim 6, characterized in that: A collection box (25) is provided above the storage box (23), and a third connecting pipe (26) is fixedly installed on both the front and rear sides of the collection box (25).

8. The waste heat recovery integrated device for ambient temperature negative pressure deoxygenation treatment according to claim 7, characterized in that: The quick-release gas screening assembly includes a mounting cylinder (31), on which a filter screen frame (32) is installed by internal threads, and a side sealing plate (33) is rotatably installed on the outer surface of the mounting cylinder (31).

9. The waste heat recovery integrated device for ambient temperature negative pressure deoxygenation treatment according to claim 8, characterized in that: A sealing gasket (34) is fixedly installed on the inner wall of the side sealing plate (33), and a buckle (35) is provided on the outer surface of the side sealing plate (33). An air pump (27) is provided on the side end of the mounting cylinder (31), and the side end of the air pump (27) is connected to the side end opening of the T-tube.

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