Tower top condenser of rectifying tower for benzotriazole production

Abstract

The utility model discloses an overhead condenser of a rectifying tower for benzotriazole production, which relates to the technical field of benzotriazole production and comprises a condenser body. A first filtering structure is arranged in an inner cavity of the second connecting pipe and used for filtering impurities, suspended solids and microorganisms in the recycled cooling medium, and a second filtering structure is arranged on the side, away from the second connecting pipe, of the second water pipe and used for removing iron rust magnetic impurities in the recycled cooling medium. According to the cooling medium filtering device, the first filtering structure is arranged in the inner cavity of the second connecting pipe, so that impurities, suspended solids, microorganisms and the like in the recycled cooling medium can be filtered through the first filtering structure, and the second filtering structure is arranged in the inner cavity of the second water pipe; therefore, the second filtering structure can be used for removing magnetic impurities such as rust in the recycled cooling medium, so that the impurities in the cooling medium are reduced or even prevented from entering the inner cavity of the tube bundle.

Description

Technical Field

[0001] The utility model relates to the technical field of benzotriazole production, in particular to a distillation tower top condenser for benzotriazole production. Background Art

[0002] In the fine chemical production process of benzotriazole, the distillation tower is one of the indispensable core equipment, and its top condenser plays a vital role. The distillation tower separates the different components in the mixture according to the difference in boiling points by controlling the temperature, pressure and other conditions, while the top condenser is responsible for quickly condensing the steam generated at the top of the distillation tower into liquid for subsequent processing and recovery.

[0003] However, as production continues, the condenser also faces some challenges. One of the most notable problems is that the cooling medium (usually circulating cooling water or other coolants) entering the heat transfer tube will gradually accumulate dirt, scaling or impurities. These dirt may come from impure substances in the raw materials, chemical reaction products in the production process, impurities in the cooling water, etc. Over time, these dirt, scaling or impurities will gradually accumulate in the inner cavity of the tube bundle of the condenser. These accumulations not only cover the originally smooth inner surface of the tube bundle and increase thermal resistance, but may also cause partial blockage of the pipeline and affect the normal flow of the fluid. This phenomenon will significantly reduce the heat exchange efficiency of the condenser and cause the condensation effect to deteriorate. The steam that should have condensed quickly will have a greatly reduced heat transfer effect when passing through the tube bundle covered with dirt, so that the steam cannot be fully condensed, thereby affecting the efficiency of the entire distillation process. Utility Model Content

[0004] The utility model aims to provide a distillation tower top condenser for benzotriazole production to solve the problems raised in the above background technology.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0006] A top condenser of a distillation tower for producing benzotriazole comprises a condenser body; a connecting pipe 1 is symmetrically fixedly connected to one side of the condenser body, and the inner cavity of the connecting pipe 1 is communicated with the inner cavity of the condenser body, and a water inlet structure is fixedly connected to the side of the connecting pipe 1 away from the condenser body, and the water inlet structure comprises a water pipe 1, which is fixedly connected to the connecting pipe 1, a connecting pipe 2 is fixedly connected to the side of the water pipe 1 away from the connecting pipe 1, and a connecting pipe 2 is fixedly connected to the side of the connecting pipe 2 away from the water pipe 1, and a first filtering structure is arranged in the inner cavity of the connecting pipe 2, and the first filtering structure is used to filter impurities, suspended matter and microorganisms in a circulating cooling medium, and a second filtering structure is arranged on the side of the water pipe 2 away from the connecting pipe 2, and the second filtering structure is used to remove rust and magnetic impurities in the circulating cooling medium.

[0007] The further improvement of the technical solution of the utility model is that the first filtering structure includes a filter cover, a handle is fixedly connected to the upper end of the filter cover, a clamping block structure is symmetrically fixedly connected to the filter cover, and a filter frame is threadedly connected to the lower end of the filter cover.

[0008] The above-mentioned technical solution is adopted, in which a filter frame is provided, so that the cooling medium delivered to the inner cavity of the condenser body can be filtered by the filter frame, and some impurities in the medium can be intercepted to prevent a large amount of impurities from flowing into the inner cavity of the tube bundle in the inner cavity of the condenser body along with the cooling medium, thereby causing blockage in the inner cavity of the tube bundle.

[0009] A further improvement of the technical solution of the utility model is that a clamping groove 1 is symmetrically provided on the upper part of the inner cavity of the second connecting pipe.

[0010] The above-mentioned technical solution is adopted, in which a card slot 1 is symmetrically opened on the upper part of the inner cavity of the connecting tube 2, so that the position of the first filter structure can be limited by the cooperation of the card slot 1 and the card block structure, thereby preventing the first filter structure from being subjected to the impact force of the cold zone medium during use, thereby preventing the position from being shifted, thereby affecting the first filter structure's filtration of the cooling medium.

[0011] A further improvement of the technical solution of the utility model is that an indicator groove is provided on one side of the upper end of the handle.

[0012] The above technical solution is adopted, in which an indicator groove is provided, so that the staff can visually observe the opening direction of the filter frame, thereby avoiding not adjusting the opening direction of the filter frame when it is necessary to adjust the flow direction of the cooling medium, thereby affecting the filtering and interception of the cooling medium.

[0013] A further improvement of the technical solution of the utility model is that the block structure comprises a shell, the outer surface of the shell is fixedly connected to the filter cover, the inner cavity of the shell is fixedly connected to a spring, the inner cavity of the shell is slidably connected to a convex block, and the convex block is fixedly connected to the spring.

[0014] The above-mentioned technical solution is adopted, in which the protrusion is pushed to move in the shell by a spring, and then the protrusion cooperates with the slot 1, so that the position of the first filter structure can be quickly limited. When the opening direction of the filter frame needs to be adjusted, or when impurities in the inner cavity of the filter frame need to be processed, the position limitation of the first filter structure can be quickly released, thereby saving a lot of time.

[0015] A further improvement of the technical solution of the utility model is that the second filtering structure includes a connecting block 1, which is fitted with the outer surface of the water pipe 2, a magnetic structure is slidably connected to the middle of the connecting block 1, and a connecting block 2 is symmetrically rotated and connected to the lower part of the connecting block.

[0016] By adopting the above technical solution, a second connecting block is provided in the solution, so that the position of the second filter structure can be limited by the cooperation of the two connecting blocks 2, thereby preventing the second filter structure from being shifted in position during operation.

[0017] A further improvement of the technical solution of the utility model is that the magnetic attraction structure comprises an electromagnetic block, a sealing block is fixedly connected to the lower end of the electromagnetic block, and an iron rod is fixedly connected to the lower end of the electromagnetic block and the middle part of the sealing block.

[0018] The above technical solution is adopted, in which a sealing block is provided to prevent the liquid in the inner cavity of the second water pipe from flowing out of the groove. The electromagnetic block and the iron rod are coordinated so that the electromagnetic block can be used to control the iron rod to generate magnetism, and then the iron rod can be used to absorb magnetic impurities such as rust contained in the liquid in the inner cavity of the second water pipe to prevent it from being deposited in the inner cavity of the condenser tube bundle, thereby slowing down or even avoiding blockage and rust in the inner cavity of the tube bundle.

[0019] Due to the adoption of the above technical solution, the utility model has achieved the following technical progress compared with the prior art:

[0020] 1. The utility model provides a top condenser of a distillation tower for the production of benzotriazole. A first filtering structure is provided in the inner cavity of the second connecting pipe, so that the first filtering structure can be used to filter impurities, suspended matter and microorganisms in a circulating cooling medium. A second filtering structure is provided in the inner cavity of the second water pipe, so that the second filtering structure can be used to remove magnetic impurities such as rust in the circulating cooling medium, thereby reducing or even avoiding impurities in the cooling medium from entering the inner cavity of the tube bundle, and avoiding a large amount of impurities from accumulating in the inner cavity of the tube bundle for a long time, which then leads to an increase in thermal resistance of the inner cavity of the tube bundle or even blockage.

[0021] 2. The utility model provides a top condenser of a distillation tower for the production of benzotriazole. By providing an indicator slot, the staff can visually observe the opening direction of the filter frame, thereby avoiding the situation where the opening direction of the filter frame is not adjusted when the flow direction of the medium in the cold zone needs to be adjusted, thereby affecting the filtering and interception of the cooling medium. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The utility model will be further described below in conjunction with the accompanying drawings.

[0023] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0024] Figure 2 It is a partial structural schematic diagram of the utility model;

[0025] Figure 3 It is a schematic cross-sectional view of a local structure of the utility model;

[0026] Figure 4 This is a schematic diagram of the water inlet structure of the utility model;

[0027] Figure 5 This is a schematic diagram of the first filtering structure of the utility model;

[0028] Figure 6 It is a schematic diagram of the filter cover of the utility model;

[0029] Figure 7 This is a schematic diagram of the card block structure of the utility model;

[0030] Figure 8 This is a schematic diagram of the second filtering structure of the utility model;

[0031] Fig. 9 This is a schematic diagram of the magnetic attraction structure of the utility model;

[0032] In the figure: 1. condenser body; 2. connecting pipe 1; 3. water inlet structure; 31. water pipe 1; 32. connecting pipe 2; 321. slot 1; 33. water pipe 2; 4. first filter structure; 41. filter cover; 42. handle; 421. indicator slot; 43. block structure; 431. housing; 432. spring; 433. bump; 44. filter frame; 5. second filter structure; 51. connecting block 1; 52. magnetic structure; 521. electromagnetic block; 522. sealing block; 523. iron rod; 53. connecting block 2. DETAILED DESCRIPTION

[0033] The present invention is further described in detail below in conjunction with the embodiments:

[0034] Example 1

[0035] like Figure 1-9 As shown, the utility model provides a top condenser of a distillation tower for producing benzotriazole, including a condenser body 1; a connecting pipe 2 is symmetrically fixedly connected to one side of the condenser body 1, and the inner cavity of the connecting pipe 2 is communicated with the inner cavity of the condenser body 1, and the side of the connecting pipe 2 away from the condenser body 1 is fixedly connected to a water inlet structure 3, the water inlet structure 3 includes a water pipe 1 31, the water pipe 1 31 is fixedly connected to the connecting pipe 2, the side of the water pipe 1 31 away from the connecting pipe 2 is fixedly connected to a connecting pipe 2 32, the side of the connecting pipe 2 32 away from the water pipe 1 31 is fixedly connected to a water pipe 2 33, the inner cavity of the connecting pipe 2 32 is provided with a first filter structure 4, the first filter structure 4 is used to filter impurities, suspended matter and microorganisms in the circulating cooling medium, the side of the water pipe 2 33 away from the connecting pipe 2 32 is provided with a second filter structure 5, the second filter structure 5 is used to remove rust and magnetic impurities in the circulating cooling medium.

[0036] In this embodiment, the cooling medium can be transported to the inner cavity of the condenser body 1 through the connecting pipe 1 2, the connecting pipe 1 2 can be connected through the water pipe 1 31, the connecting pipe 2 32 can provide an area for the first filter structure 4 to filter the cooling medium, the second filter structure 5 can be connected through the water pipe 2 33, the first filter structure 4 can filter the recycled cooling medium and intercept some impurities in the cooling medium, and the second filter structure 5 can filter magnetic impurities such as rust in the recycled cooling medium to prevent them from being deposited on the surface of the condenser, thereby causing blockage or even rust in the inner cavity of the tube bundle.

[0037] Example 2

[0038] like Figure 4 , Figure 8 , Fig. 9 As shown, on the basis of Example 1, the utility model provides a technical solution: preferably, the second filtering structure 5 includes a connecting block 51, the connecting block 51 is fitted with the outer surface of the water pipe 33, the middle part of the connecting block 51 is slidably connected with a magnetic structure 52, the lower part of the connecting block 51 is symmetrically rotatably connected with the connecting block 2 53, the magnetic structure 52 includes an electromagnetic block 521, the lower end of the electromagnetic block 521 is fixedly connected with a sealing block 522, and the lower end of the electromagnetic block 521 and the middle of the sealing block 522 are jointly fixedly connected with an iron rod 523.

[0039] In this embodiment, the water pipe 2 33 is connected to the pipeline for conveying the cooling medium, and then the cooling medium is conveyed through the water pipe 2 33. Then, when the medium passes through the second filter structure 5, the sealing block 522 can prevent the medium in the inner cavity of the water pipe 2 33 from flowing out. The electromagnetic block 521 controls the iron rod 523 to generate magnetic force, and then the iron rod 523 is used to filter and intercept magnetic impurities such as rust in the cooling medium. Then, the cooling medium filtered by the second filter structure 5 will be conveyed to the inner cavity of the connecting pipe 2 32. At the same time, through the cooperation of the connecting block 1 51 and the two connecting blocks 2 53, the second filter structure 5 can be fixed at the water pipe 2 33 to avoid being affected by the impact of the medium, causing the second filter structure 5 to shake, etc., thereby affecting the filtering quality of the second filter structure 5 for the medium.

[0040] Example 3

[0041] like Figure 3 , Figure 5 As shown, based on Example 2, the utility model provides a technical solution: preferably, the first filter structure 4 includes a filter cover 41, a handle 42 is fixedly connected to the upper end of the filter cover 41, a block structure 43 is symmetrically fixedly connected to the filter cover 41, and a filter frame 44 is threadedly connected to the lower end of the filter cover 41.

[0042] In this embodiment, the cooling medium transported to the inner cavity of the connecting pipe 2 32 will flow into the inner cavity of the filter frame 44 through the opening of the filter frame 44, and then some impurities in the medium will be filtered and intercepted by the filter frame 44, and then the filtered cooling medium will flow into the inner cavity of the connecting pipe 2 through the water pipe 1 31, and then flow into the inner cavity of the condenser body 1 from the connecting pipe 2, and then after these cooling media are cooled in the inner cavity of the condenser body 1, they will flow into the inner cavity of the water pipe 31 through the inner cavity of the connecting pipe 2 located on the lower side, and then repeat the above steps to complete the filtering of the cooling medium again, and then the filtered medium will flow back to the storage water tank to wait for recycling again.

[0043] Example 4

[0044] like Figure 6 , Figure 7 As shown, on the basis of Example 3, the utility model provides a technical solution: preferably, a card slot 321 is symmetrically opened on the upper part of the inner cavity of the connecting tube 32, an indicating slot 421 is opened on one side of the upper end of the handle 42, and the card block structure 43 includes a shell 431, the outer surface of the shell 431 is fixedly connected to the filter cover 41, the inner cavity of the shell 431 is fixedly connected to a spring 432, the inner cavity of the shell 431 is slidably connected to a protrusion 433, and the protrusion 433 is fixedly connected to the spring 432.

[0045] In this embodiment, when the flow direction of the cooling medium is adjusted and the opening direction of the filter frame 44 needs to be adjusted, the staff first applies a force to the first filter structure 4 by holding the handle 42, pulling the first filter structure 4 to move upward, and then driving the protrusion 433 to move out of the card slot 1 321, so that under the obstruction of the inner cavity of the connecting pipe 2 32, the protrusion 433 is driven to slide in the inner cavity of the shell 431, and then the spring 432 is driven to contract, thereby releasing the position limit of the first filter structure 4, and then the staff drives the first filter structure 4 to rotate according to the indication of the indication slot 421. , adjust the opening of the filter frame 44 to the side opposite to the previous direction, and then during the rotation of the first filter structure 4, the block structure 43 will also rotate together. When the block structure 43 rotates to the inner cavity of another slot 321, under the elastic force of the spring 432 itself, the protrusion 433 will be pushed to move toward the inner cavity of the slot 321, thereby pushing the protrusion 433 into the inner cavity of the slot 321, so that under the cooperation of the protrusion 433 and the slot 321, the position of the first filter structure 4 can be limited, thereby completing the adjustment of the opening direction of the filter frame 44.

[0046] The working principle of the top condenser of the distillation tower for benzotriazole production is described in detail below.

[0047] like Figure 1-9As shown, when the cooling medium needs to be filtered, firstly, the water pipe 2 33 is connected to the pipeline for conveying the cooling medium, and then the cooling medium is conveyed through the water pipe 2 33. Then, when the medium passes through the second filtering structure 5, the sealing block 522 can prevent the medium in the inner cavity of the water pipe 2 33 from flowing out, and the iron rod 523 is controlled by the electromagnetic block 521 to generate magnetic force, and then the iron rod 523 is used to filter and intercept magnetic impurities such as rust in the cooling medium, and then the cooling medium filtered by the second filtering structure 5 will be conveyed to the inner cavity of the connecting pipe 2 32. At the same time, through the cooperation of the connecting block 1 51 and the two connecting blocks 2 53, the second filtering structure 5 can be fixed at the water pipe 2 33 to avoid being affected by the impact of the medium, causing the second filtering structure 5 to shake, etc., thereby affecting the filtering quality of the second filtering structure 5 for the medium;

[0048] The cooling medium transported to the inner cavity of the connecting pipe 2 32 will flow into the inner cavity of the filter frame 44 through the opening of the filter frame 44, and then some impurities in the medium will be filtered and intercepted by the filter frame 44, and then the filtered cooling medium will flow into the inner cavity of the connecting pipe 2 through the water pipe 1 31, and then flow into the inner cavity of the condenser body 1 through the connecting pipe 1 2, and then these cooling media will flow into the inner cavity of the water pipe 1 31 through the inner cavity of the connecting pipe 2 located at the lower side after the cooling in the inner cavity of the condenser body 1, and then repeat the above steps to complete the filtering of the cooling medium again, and then the filtered medium will flow back to the storage water tank to wait for recycling again;

[0049] After adjusting the flow direction of the cooling medium, when it is necessary to adjust the opening direction of the filter frame 44, the staff first applies a force to the first filter structure 4 by holding the handle 42, pulling the first filter structure 4 to move upward, and then driving the protrusion 433 to move out of the card slot 1 321, so that under the obstruction of the inner cavity of the connecting pipe 2 32, the protrusion 433 is driven to slide in the inner cavity of the shell 431, and then the spring 432 is driven to contract, thereby releasing the position limit of the first filter structure 4, and then the staff drives the first filter structure 4 to rotate according to the indication of the indication slot 421, and the filter is moved upward. The opening of the mesh frame 44 is adjusted to the side opposite to the previous direction, and then during the rotation of the first filter structure 4, the block structure 43 will also rotate together. When the block structure 43 rotates to the inner cavity of another slot 321, under the elastic force of the spring 432 itself, the protrusion 433 will be pushed to move toward the inner cavity of the slot 321, thereby pushing the protrusion 433 into the inner cavity of the slot 321. Therefore, under the cooperation of the protrusion 433 and the slot 321, the position of the first filter structure 4 can be limited, thereby completing the adjustment of the opening direction of the filter frame 44.

[0050] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not deviate from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A distillation tower top condenser for benzotriazole production, comprising a condenser body (1); characterized in that: A connecting pipe (2) is symmetrically fixedly connected to one side of the condenser body (1), and the inner cavity of the connecting pipe (2) is communicated with the inner cavity of the condenser body (1). A water inlet structure (3) is fixedly connected to the side of the connecting pipe (2) away from the condenser body (1). The water inlet structure (3) comprises a water pipe (31). The water pipe (31) is fixedly connected to the connecting pipe (2). A connecting pipe (32) is fixedly connected to the side of the connecting pipe (31) away from the connecting pipe (2). A water pipe (33) is fixedly connected to the side of the connecting pipe (32) away from the connecting pipe (31). A first filtering structure (4) is provided in the inner cavity of the connecting pipe (32). The first filtering structure (4) is used to filter impurities, suspended matter and microorganisms in the circulating cooling medium. A second filtering structure (5) is provided on the side of the water pipe (33) away from the connecting pipe (32). The second filtering structure (5) is used to remove rust and magnetic impurities in the circulating cooling medium.

2. The top condenser of a distillation tower for producing benzotriazole according to claim 1, characterized in that: The first filtering structure (4) comprises a filter cover (41), the upper end of the filter cover (41) is fixedly connected to a handle (42), the filter cover (41) is symmetrically fixedly connected to a clamping block structure (43), and the lower end of the filter cover (41) is threadedly connected to a filter frame (44).

3. The top condenser of a distillation tower for producing benzotriazole according to claim 1, characterized in that: A first clamping groove (321) is symmetrically provided on the upper portion of the inner cavity of the second connecting pipe (32).

4. The top condenser of a distillation tower for producing benzotriazole according to claim 2, characterized in that: An indicator groove (421) is provided on one side of the upper end of the handle (42).

5. The top condenser of a distillation tower for producing benzotriazole according to claim 2, characterized in that: The block structure (43) comprises a shell (431), the outer surface of the shell (431) is fixedly connected to the filter cover (41), the inner cavity of the shell (431) is fixedly connected to a spring (432), the inner cavity of the shell (431) is slidably connected to a protrusion (433), and the protrusion (433) is fixedly connected to the spring (432).

6. The top condenser of a distillation tower for producing benzotriazole according to claim 1, characterized in that: The second filtering structure (5) comprises a connecting block 1 (51), wherein the connecting block 1 (51) is fitted with the outer surface of the water pipe 2 (33), the middle part of the connecting block 1 (51) is slidably connected to a magnetic attraction structure (52), and the lower part of the connecting block 1 (51) is symmetrically rotatably connected to the connecting block 2 (53).

7. The top condenser of a distillation tower for producing benzotriazole according to claim 6, characterized in that: The magnetic attraction structure (52) comprises an electromagnetic block (521), the lower end of the electromagnetic block (521) is fixedly connected to a sealing block (522), and the lower end of the electromagnetic block (521) and the middle of the sealing block (522) are fixedly connected to an iron rod (523).

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