Heat exchanger for n-butane light component removal tower

Abstract

The utility model relates to the technical field of heat exchangers, and discloses a heat exchanger for an n-butane light component removal tower, which comprises a heat exchanger main body, and a water inlet of the heat exchanger main body is fixedly communicated with a three-way pipe I; the second U-shaped plate is fixed on the surface of the heat exchanger main body close to the three-way pipe I; the two groups of placing discs are of annular structures and are respectively fixed in the inner side walls of the symmetrical ports of the three-way pipe; according to the heat exchanger for the n-butane light component removal tower, a water medium can be filtered, solid particles, suspended solids and other impurities in water can be intercepted, the impurities are prevented from entering the heat exchanger main body, the phenomenon of scaling in the heat exchanger main body caused by impurity deposition is reduced, and clean and efficient operation of the heat exchanger main body is kept; and the cleaning frequency and difficulty are reduced, the cleaning and maintenance cost is saved, and the using effect of the device is improved.

Description

Technical Field

[0001] This utility model relates to the field of heat exchanger technology, specifically a heat exchanger for a n-butane light removal tower. Background Technology

[0002] With the development of the petrochemical industry, n-butane light component removal towers play a crucial role in petroleum refining and chemical production. The main purpose of these towers is to separate light components from n-butane to obtain high-purity n-butane products. In this process, heat exchangers are one of the key pieces of equipment, used to transfer heat between different parts of the tower to maintain the stability and efficiency of the process.

[0003] Existing heat exchangers typically lack a filter at the inlet, allowing solid particles, suspended solids, and other impurities in the water to directly enter the heat exchanger. This increases scaling inside the heat exchanger, reduces heat exchange efficiency, and increases the frequency of cleaning and maintenance. Therefore, we propose a heat exchanger for a n-butane light residue removal tower to address these problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a heat exchanger for a n-butane light removal tower. It solves the problem that existing heat exchangers typically do not have a filter at the inlet, which allows solid particles, suspended solids, and other impurities in the water to directly enter the heat exchanger, increasing scaling inside the heat exchanger, reducing heat exchange efficiency, and increasing the frequency of cleaning and maintenance.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a heat exchanger for a n-butane light removal tower, comprising a heat exchanger body, wherein the inlet of the heat exchanger body is fixedly connected to a three-way pipe;

[0006] The second U-shaped plate is fixed on the surface of the heat exchanger body near the T-shaped pipe.

[0007] The ring-shaped placement tray is provided in two sets and is fixed in the inner side wall of a symmetrical port of a tee pipe respectively;

[0008] The annular frame is provided in two sets, which are respectively set on two sets of placement trays, and a filter screen is fixed on the inner side wall of the annular frame;

[0009] The second tee pipe is fixedly installed on the second U-shaped plate, and the symmetrical port of the second tee pipe corresponds to the symmetrical port of the first tee pipe.

[0010] Preferably, a U-shaped disc is welded to the symmetrical port of the first tee pipe, a sealing disc is provided at the position of the U-shaped disc, a telescopic flexible hose is fixed to the top port of the sealing disc, the other end of the telescopic flexible hose is fixedly connected to the port of the second tee pipe, a first U-shaped plate is fixed to the upper surface of the sealing disc, the upper surface of the first U-shaped plate is rotatably connected to the screw through a bearing, and the second U-shaped plate is threadedly connected to the screw through a threaded hole.

[0011] Preferably, telescopic rods arranged symmetrically are fixed between the first U-shaped plate and the second U-shaped plate.

[0012] Preferably, a sealing ring is provided between the U-shaped through plate and the sealing plate.

[0013] Preferably, the lower surface of the sealing disc is threadedly connected to two sets of top rods corresponding to the annular frame through threaded holes.

[0014] Preferably, two sets of first control valves are installed on the second tee pipe, and the symmetrical ports of the second tee pipe can be blocked by the two sets of first control valves. Two sets of second control valves are installed on the first tee pipe, and the symmetrical ports of the first tee pipe can be blocked by the two sets of second control valves.

[0015] Beneficial effects

[0016] This invention provides a heat exchanger for a n-butane light component removal tower. Compared with the prior art, it has the following advantages:

[0017] The heat exchanger used in this n-butane light removal tower can filter the water medium, intercepting solid particles, suspended matter and other impurities in the water, preventing these impurities from entering the heat exchanger body, reducing scaling inside the heat exchanger body caused by impurity deposition, keeping the heat exchanger body clean and operating efficiently, reducing the frequency and difficulty of cleaning, saving cleaning and maintenance costs, and improving the effectiveness of the equipment. 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 partial sectional view of the overall structure of this utility model;

[0020] Figure 3 This is a partial sectional view of the structure of the connecting parts such as the three-way pipe and the placement tray of this utility model;

[0021] Figure 4 This utility model Figure 3 A magnified structural diagram at point A.

[0022] In the diagram: 100, Heat exchanger body; 101, T-pipe one; 102, Placement plate; 103, Annular frame; 104, Filter screen; 105, T-pipe two; 106, U-shaped plate; 107, Sealing ring; 108, Sealing plate; 109, Telescopic flexible hose; 110, First U-shaped plate; 111, Screw; 112, Telescopic rod; 113, First control valve; 114, Second control valve; 115, Second U-shaped plate; 116, Top rod. Detailed Implementation

[0023] 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.

[0024] like Figure 1-4 As shown:

[0025] A heat exchanger for a n-butane light removal tower includes a heat exchanger body 100, and a three-way pipe 101 is fixedly connected to the water inlet of the heat exchanger body 100.

[0026] The second U-shaped plate 115 is fixed on the surface of the heat exchanger body 100 near the position of the tee pipe 101.

[0027] The ring-shaped placement tray 102 is provided in two sets and is fixed in the inner side wall of the symmetrical port of the tee pipe 101 respectively.

[0028] Two sets of annular frames 103 are provided, which are respectively set on two sets of placement trays 102, and a filter screen 104 is fixed on the inner side wall of the annular frame 103.

[0029] T-pipe 2 105 is fixedly installed on the second U-shaped plate 115, and the symmetrical port of t-pipe 2 105 corresponds to the symmetrical port of t-pipe 1 101.

[0030] A U-shaped disc 106 is welded to the symmetrical port of the tee pipe 101. A sealing disc 108 is provided at the position of the U-shaped disc 106. A telescopic flexible hose 109 is fixed to the top port of the sealing disc 108. The other end of the telescopic flexible hose 109 is fixedly connected to the port of the tee pipe 105. A first U-shaped plate 110 is fixed to the upper surface of the sealing disc 108. The upper surface of the first U-shaped plate 110 is rotatably connected to the screw 111 through a bearing. A second U-shaped plate 115 is threadedly connected to the screw 111 through a threaded hole.

[0031] In this embodiment: When using the heat exchanger for the n-butane light removal tower, n-butane enters the tube bundle (not shown in the figure) of the heat exchanger body 100 through the gas inlet. During the flow, the n-butane transfers heat to the tube wall through convection, and the tube wall then transfers heat to the fluid outside the tube bundle through thermal conduction. The fluid is water medium that enters from the water inlet of the heat exchanger body 100. Its temperature is low and it is used to cool the n-butane. The cooled gas is discharged through the exhaust port of the heat exchanger body 100, and at the same time, the water medium is discharged through the drain port.

[0032] During this process, water enters through the second three-way pipe 105, flows along the flexible flexible hose 109, enters the first three-way pipe 101, and is discharged into the heat exchanger body 100. In this process, the water medium is filtered by the filter screen 104 on the placement plate 102. The filter device can intercept solid particles, suspended matter and other impurities in the water, preventing these impurities from entering the heat exchanger body 100. This reduces the scaling phenomenon inside the heat exchanger body 100 caused by impurity deposition, keeps the heat exchanger body 100 clean and operates efficiently, reduces the frequency and difficulty of cleaning, saves cleaning and maintenance costs, and improves the use effect of the device.

[0033] It should be noted that one end of the tee pipe 2105 is connected to the water inlet system.

[0034] It should be noted that the heat exchanger body 100 includes a shell, a tube bundle, and a tube sheet. The shell is usually made of metal and is cylindrical in shape. It is used to house the heat exchange elements and fluid. The tube bundle is the core part of the heat exchanger and consists of multiple tubes for heat exchange between fluids. The tube sheet is located at both ends of the shell and is used to fix the tube bundle and maintain the distance between the tubes. The shell is also provided with an air inlet, an exhaust outlet, a water inlet, and a drain outlet. The two ends of the tube bundle are connected to the air inlet and the exhaust outlet, respectively. The contents of the heat exchanger body 100 that are not described in detail are all prior art known to those skilled in the art and will not be described in detail.

[0035] Furthermore;

[0036] In an optional embodiment, telescopic rods 112 arranged symmetrically are fixed between the first U-shaped plate 110 and the second U-shaped plate 115;

[0037] A sealing ring 107 is provided between the U-shaped through plate 106 and the sealing plate 108;

[0038] The lower surface of the sealing disc 108 is threaded with two sets of push rods 116 corresponding to the annular frame 103 through threaded holes.

[0039] Two sets of first control valves 113 are installed on the tee pipe 2 105. The symmetrical ports of the tee pipe 2 105 can be blocked by the two sets of first control valves 113. Two sets of second control valves 114 are installed on the tee pipe 1 101. The symmetrical ports of the tee pipe 1 101 can be blocked by the two sets of second control valves 114.

[0040] In this embodiment: when the filter screen 104 needs to be replaced, two sets of first control valves 113 are provided on the second tee pipe 105, and two sets of second control valves 114 are installed on the first tee pipe 101. By closing one set of corresponding first control valves 113 and second control valves 114, one set of ports of the second tee pipe 105 and the first tee pipe 101 can be blocked, while the other port remains in a water-passing state. In this way, when one set of filter screens 104 is replaced, the other set of filter screens 104 can still maintain the water filtration state. This design allows the filter screen 104 to be replaced without stopping the equipment operation, thereby improving work efficiency.

[0041] By rotating the screw 111, the first U-shaped plate 110 can be moved upward, and at the same time the telescopic rod 112 can be retracted. The telescopic rod 112 can limit the first U-shaped plate 110 and ensure its movement stability.

[0042] As the first U-shaped plate 110 moves upward, the sealing disc 108 also rises, causing the sealing disc 108 to separate from the U-shaped through disc 106. Due to the telescopic flexible hose 109 having a telescopic flexible structure design, it can drive the top rod 116 to move upward when the sealing disc 108 moves upward, thereby relieving the compression on the annular frame 103. In this way, the annular frame 103 and the filter screen 104 can be removed from the three-way pipe 101 and replaced.

[0043] A sealing ring 107 is provided between the sealing disc 108 and the U-shaped disc 106. When the sealing disc 108 is installed on the U-shaped disc 106, the sealing ring 107 is compressed, which enhances the sealing between the U-shaped disc 106 and the sealing disc 108. The top rod 116 is provided so that after the sealing disc 108 is installed, one end of it abuts against the annular frame 103, which increases the stability of the contact between the annular frame 103 and the placement disc 102.

[0044] The working principle and usage process of this utility model are as follows: In use, the heat exchanger for the n-butane light removal tower allows n-butane to enter the tube bundle (not shown in the figure) of the heat exchanger body 100 through the gas inlet. During the flow, the n-butane transfers heat to the tube wall through convection, and the tube wall then transfers heat to the fluid outside the tube bundle through thermal conduction. This fluid is water, which enters from the water inlet of the heat exchanger body 100. Its lower temperature is used to cool the n-butane. The cooled gas is discharged through the exhaust port of the heat exchanger body 100, while the water is discharged through the drain port. During this process, water enters through the second three-way pipe 105 and flows along the telescopic flexible hose 109, then enters the first three-way pipe 101 and is discharged into the heat exchanger body 100. During this process, the water is filtered by the filter screen 104 on the placement tray 102. When the filter screen 104 needs to be replaced, two... The first control valve 113 is installed in the first group, and two sets of second control valves 114 are installed on the three-way pipe 101. By closing one set of corresponding first control valves 113 and second control valves 114, one set of ports of the three-way pipe 105 and the three-way pipe 101 can be blocked, while the other port remains open to water. In this way, when one set of filter screens 104 is replaced, the other set of filter screens 104 can still maintain the water filtration state. This design allows the filter screens 104 to be replaced without stopping the equipment, thereby improving work efficiency. By rotating the screw 111, the first U-shaped plate 110 can be moved upward. As the first U-shaped plate 110 moves upward, the sealing disc 108 also rises, causing the sealing disc 108 to separate from the U-shaped plate 106. Due to the telescopic flexible hose 109 having a telescopic flexible structure design, when the sealing disc 108 moves upward, it can drive the top rod 116 to move upward, thereby relieving the compression on the annular frame 103. In this way, the annular frame 103 and the filter screen 104 can be removed from the three-way pipe 101 and replaced.

[0045] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the 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 this utility model should be included within the protection scope of this utility model.

Claims

1. A heat exchanger for a n-butane light component removal tower, comprising a heat exchanger body (100), characterized in that, include: The heat exchanger body (100) has a three-way pipe (101) fixedly connected to its inlet. The second U-shaped plate (115) is fixed on the surface of the heat exchanger body (100) near the position of the tee pipe (101); The ring-shaped placement tray (102) is provided in two sets and is fixed in the inner side wall of the symmetrical port of the three-way pipe (101); Two sets of annular frames (103) are provided, which are respectively placed on two sets of placement trays (102), and a filter screen (104) is fixed on the inner side wall of the annular frame (103). The second tee pipe (105) is fixedly installed on the second U-shaped plate (115), and the symmetrical port of the second tee pipe (105) corresponds to the symmetrical port of the first tee pipe (101).

2. The heat exchanger for the n-butane light component removal tower according to claim 1, characterized in that: A U-shaped plate (106) is welded to the symmetrical port of the first three-way pipe (101). A sealing plate (108) is provided at the position of the U-shaped plate (106). A telescopic flexible hose (109) is fixed to the top port of the sealing plate (108). The other end of the telescopic flexible hose (109) is fixedly connected to the port of the second three-way pipe (105). A first U-shaped plate (110) is fixed to the upper surface of the sealing plate (108). The upper surface of the first U-shaped plate (110) is rotatably connected to the screw (111) through a bearing. The second U-shaped plate (115) is threadedly connected to the screw (111) through a threaded hole.

3. The heat exchanger for the n-butane light component removal tower according to claim 2, characterized in that: A telescopic rod (112) arranged symmetrically is fixed between the first U-shaped plate (110) and the second U-shaped plate (115).

4. The heat exchanger for the n-butane light component removal tower according to claim 2, characterized in that: A sealing ring (107) is provided between the U-shaped disc (106) and the sealing disc (108).

5. The heat exchanger for the n-butane light component removal tower according to claim 4, characterized in that: The lower surface of the sealing disc (108) is threaded with two sets of push rods (116) corresponding to the annular frame (103) through threaded holes.

6. The heat exchanger for the n-butane light component removal tower according to claim 1, characterized in that: Two sets of first control valves (113) are installed on the second tee pipe (105). The symmetrical ports of the second tee pipe (105) can be blocked by the two sets of first control valves (113). Two sets of second control valves (114) are installed on the first tee pipe (101). The symmetrical ports of the first tee pipe (101) can be blocked by the two sets of second control valves (114).

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