Evaporative condensing device for chloromethane condensation production

Abstract

The utility model discloses a kind of evaporative condensing devices for chloromethane condensation production, comprising: box structure, the inner wall of the box structure is fixedly connected with cooling structure;The utility model relates to the technical field of evaporative condensation, the box structure and cooling structure, through the collaborative design of inclined spray head and rotary head, make spraying water form 360 ° evenly covered foggy water film, substantially increase the contact area of condensing pipe outer wall and spraying water, utilize latent heat and efficiently take away heat, significantly reduce condensing pipe wall temperature, through the water baffle of condensing tank top can effectively intercept the fine water mist ascending with air, further reduce water consumption in water circulation process, and through closed loop waterway formed by condensing tank bottom-connection pipe-water pump-spraying pipe-water pipe, without continuously supplementing a large amount of fresh water, not only reduce industrial water cost.

Description

Technical Field

[0001] This utility model relates to the field of evaporative condensation technology, specifically to an evaporative condensation device for the condensation production of chloromethane. Background Technology

[0002] Chloromethane, as an important organic chemical raw material, is widely used in the production processes of industries such as organosilicon, pesticides, and pharmaceuticals. In the industrial production of chloromethane, the condensation and liquefaction of gaseous chloromethane is one of the key processes.

[0003] Traditional evaporative condenser spray systems often use fixed spray head designs, with spray water applied in a unidirectional or localized manner. This fails to achieve complete coverage of the outer wall of the condenser tubes, resulting in uneven heat exchange in certain areas. In continuous chloromethane production, existing systems are prone to incomplete condensation when the amount of gaseous chloromethane processed increases. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides an evaporative condenser for chloromethane condensation production, which solves the problem that traditional evaporative condenser spray systems often use fixed spray head designs, making it impossible to achieve complete coverage of the outer wall of the condenser tube.

[0005] To achieve the above objectives, this utility model provides the following technical solution: An evaporative condenser for chloromethane condensation production includes: a box structure, the inner wall of which is fixedly connected to a cooling structure; the cooling structure includes a water pipe, the outer wall of which is fixedly connected to a spray pipe via a flange, a water pump fixedly connected to the outer wall at the bottom of the spray pipe, a connecting pipe fixedly connected to the outer wall at the bottom of the water pump, a spray pipe fixedly connected to the inner wall of the water pipe, an annular groove formed on the outer wall of the spray pipe, a rotating head slidably connected to the inner wall of the annular groove, and a spray head fixedly connected to the inner wall at the bottom of the rotating head.

[0006] Preferably, the interior of the water pipe is connected to the interior of the spray pipe, and the spray pipes are arranged horizontally along the inner wall of the water pipe. The spray pipes arranged horizontally along the inner wall of the water pipe divert the water flow, so that the water flow is evenly distributed to each spray pipe.

[0007] Preferably, the interior of the rotating head is connected to the interior of the spray pipe. The spray heads are arranged in a ring around the central point of the rotating head, and the spray heads are inclined. Because the spray heads are inclined, the water flow will generate a reaction force when it is sprayed out, which will push the rotating head to rotate along the annular groove of the spray pipe, thereby realizing rotating spraying.

[0008] Preferably, the housing structure includes a condenser box, a condenser pipe fixedly connected to the inner wall of the condenser box, a support block fixedly connected to the inner wall of the condenser box, a water outlet pipe fixedly connected to the inner wall of the bottom of the condenser box, a baffle plate fixedly connected to the inner wall of the top of the condenser box, and a filter screen plate fixedly connected to the outer wall of the top of the condenser box.

[0009] Preferably, the outer wall of the support block is fixedly connected to the outer wall of the condenser tube, the condenser tube is installed inside the condensation box, the flange at the top of the condenser tube is connected to the high-heat gas phase pipeline of chloromethane production, and the flange at the bottom of the condenser tube is connected to the condensate collection device.

[0010] Preferably, the outer wall of the water pipe is fixedly connected to the inner wall of the top of the condenser box, the connecting pipe is fixedly connected to the water outlet pipe through a flange, the water pipe is located above the condenser pipe, the water pipe is located below the baffle plate, and the water flow is evenly sprayed on the outer wall of the condenser pipe below in the form of a fine mist water film.

[0011] This invention provides an evaporative condensation device for the production of chloromethane. It has the following advantages: (i) The cooling structure, through the coordinated design of the inclined spray head and the rotating head, enables the spray water to form a 360° uniformly covered mist-like water film, which greatly increases the contact area between the outer wall of the condenser tube and the spray water. After absorbing the heat of the chloromethane, the spray water partially evaporates into water vapor, and uses latent heat to efficiently remove the heat, significantly reducing the temperature of the condenser tube wall, ensuring that the high-temperature gaseous chloromethane is rapidly cooled to below the boiling point and liquefied.

[0012] (ii) The structure of this box can effectively intercept the fine water mist rising with the air through the baffle plate on the top of the condenser box, further reducing the water loss during the water circulation process. The closed-loop water circuit formed by the bottom of the condenser box, connecting pipe, water pump, spray pipe and water pipe eliminates the need to continuously replenish a large amount of fresh water, which not only reduces the cost of industrial water, but also reduces wastewater discharge, meeting the requirements of energy-saving and environmentally friendly production. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the structure of the condenser tube of this utility model; Figure 3 This is a schematic diagram of the internal structure of this utility model; Figure 4 This is a schematic diagram of the structure of the water baffle of this utility model; Figure 5 This is a schematic diagram of the water pipe structure of this utility model; Figure 6 This utility model Figure 5 A schematic diagram of the structure at point A.

[0014] In the diagram: 1. Box structure; 11. Condensation box; 12. Condensation pipe; 13. Support block; 14. Water outlet pipe; 15. Water baffle; 16. Filter screen plate; 2. Cooling structure; 21. Water pipe; 22. Water spray pipe; 23. Water pump; 24. Connecting pipe; 25. Spray pipe; 251. Circular groove; 26. Rotary head; 27. Spray head. Detailed Implementation

[0015] 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.

[0016] Please see Figure 1-6 This utility model provides a technical solution: an evaporative condensation device for chloromethane condensation production, comprising: a box structure 1, a cooling structure 2 fixedly connected to the inner wall of the box structure 1; the cooling structure 2 includes a water pipe 21, a spray pipe 22 fixedly connected to the outer wall of the water pipe 21 via a flange, a water pump 23 fixedly connected to the outer wall of the bottom of the spray pipe 22, a connecting pipe 24 fixedly connected to the outer wall of the bottom of the water pump 23, a spray pipe 25 fixedly connected to the inner wall of the water pipe 21, an annular groove 251 formed on the outer wall of the spray pipe 25, a rotating head 26 slidably connected to the inner wall of the annular groove 251, and a spray head 27 fixedly connected to the inner wall of the bottom of the rotating head 26.

[0017] The interior of the water pipe 21 is connected to the interior of the spray pipe 22. The spray pipe 25 is arranged horizontally along the inner wall of the water pipe 21. The interior of the spray pipe 25 is connected to the interior of the water pipe 21. The spray pipes 25 arranged horizontally along the inner wall of the water pipe 21 divide the water flow so that the water flow is evenly distributed to each spray pipe 25.

[0018] The interior of the rotating head 26 is connected to the interior of the spray pipe 25. The spray heads 27 are arranged in a ring around the central point of the rotating head 26 and are inclined. Because the spray heads 27 are inclined, the water flow will generate a reaction force when it is sprayed out, which will push the rotating head 26 to rotate along the annular groove 251 of the spray pipe 25, thereby realizing rotating spraying.

[0019] The housing structure 1 includes a condenser box 11, a condenser pipe 12 fixedly connected to the inner wall of the condenser box 11, a support block 13 fixedly connected to the inner wall of the condenser box 11, a water outlet pipe 14 fixedly connected to the inner wall of the bottom of the condenser box 11, a baffle plate 15 fixedly connected to the inner wall of the top of the condenser box 11, and a filter screen plate 16 fixedly connected to the outer wall of the top of the condenser box 11.

[0020] The outer wall of the support block 13 is fixedly connected to the outer wall of the condenser tube 12. The condenser tube 12 is installed inside the condenser box 11. The flange at the top of the condenser tube 12 is connected to the high-heat gas phase pipeline of chloromethane production, and the flange at the bottom of the condenser tube 12 is connected to the condensate collection device.

[0021] The outer wall of the water pipe 21 is fixedly connected to the inner wall of the top of the condenser box 11. The connecting pipe 24 is fixedly connected to the outlet pipe 14 through a flange. The water pipe 21 is located above the condenser pipe 12 and below the baffle plate 15. The water flow is evenly sprayed on the outer wall of the condenser pipe 12 below in the form of a fine mist water film.

[0022] In use, the flange at the top of the condenser tube 12 in the box structure 1 is connected to the high-heat gas phase pipeline produced by chloromethane, and the flange at the bottom of the condenser tube 12 is connected to the condensate collection device. The high-heat gas in the condenser tube 12 in the box structure 1 is condensed through the cooling structure 2. Before the device is started, a certain amount of circulating water is stored at the bottom of the condenser 11 and connected to the flange of the outlet pipe 14 through the connecting pipe 24 to form a closed-loop water circuit of "bottom of condenser 11-connecting pipe 24-water pump 23-spray pipe 22-water pipe 21". At the same time, the condenser pipe 12 is fixed in the condenser 11 by the support block 13. Its position is directly below the water pipe 21 and directly below the baffle plate 15, ensuring that the subsequent spray water can directly act on the surface of the condenser pipe 12. After the water pump 23 is started, it draws the circulating water collected at the bottom of the condenser 11 through the bottom connecting pipe 24, pressurizes the water and delivers it to the spray pipe 22. The pressurized water in the spray pipe 22 flows into the water pipe 21 and is then distributed through the spray pipes 25 arranged horizontally on the inner wall of the water pipe 21, so that the water flow is evenly distributed to each spray pipe 25. The pressurized water flow in the spray pipe 25 enters the rotating head 26 and is sprayed out through the inclined spray heads 27 in the annular array at the bottom of the rotating head 26. Since the spray heads 27 are "inclined", the water flow will generate a reaction force when it is sprayed out, which will push the rotating head 26 to rotate along the annular groove 251 of the spray pipe 25, thereby realizing the rotation spray. The water flow is evenly sprayed on the outer wall of the condenser 12 below in the form of a fine mist water film. The high-temperature gaseous chloromethane to be condensed flows in from one end of the condenser tube 12. During the flow inside the condenser tube 12, its heat is transferred to the spray water outside the tube through the tube wall. After the spray water absorbs the heat of the chloromethane, part of it directly heats up and evaporates into water vapor, carrying away a large amount of latent heat and further reducing the temperature of the tube wall of the condenser tube 12. As the heat is continuously absorbed by the spray water outside the tube, the temperature of the high-temperature gaseous chloromethane inside the condenser tube 12 drops below the boiling point, gradually condenses into liquid chloromethane, and flows along the condenser tube 12 to the outlet end, and is finally collected for subsequent production. Water sprayed onto the outer wall of the condenser tube 12 drips down the tube wall and eventually flows back to the bottom of the condenser box 11, becoming the water source for the water pump 23 again, realizing the closed-loop utilization of water circulation. Some fine water mist that does not drip will flow upward with the air. At this time, the baffle plate 15 on the top of the condenser box 11 will intercept these water mists to prevent them from drifting directly outside the condenser box 11 and wasting water resources. The intercepted water mist will condense and drip back to the bottom of the condenser box 11. The filter plate 16 on the top of the condenser box 11 can prevent external dust and debris from entering the condenser box 11, avoiding clogging of the spray head 27, contamination of the circulating water, or affecting the heat exchange efficiency of the condenser tube 12.

[0023] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0024] 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 these 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. An evaporative condensation device for the condensation production of chloromethane, characterized in that, include: The box structure (1) has a cooling structure (2) fixedly connected to its inner wall; The cooling structure (2) includes a water pipe (21), a water spray pipe (22) is fixedly connected to the outer wall of the water pipe (21) by a flange, a water pump (23) is fixedly connected to the outer wall of the bottom of the water spray pipe (22), a connecting pipe (24) is fixedly connected to the outer wall of the bottom of the water pump (23), a spray pipe (25) is fixedly connected to the inner wall of the water pipe (21), an annular groove (251) is provided on the outer wall of the spray pipe (25), a rotating head (26) is slidably connected to the inner wall of the annular groove (251), and a spray head (27) is fixedly connected to the inner wall of the bottom of the rotating head (26).

2. The evaporative condenser for chloromethane condensation production according to claim 1, characterized in that: The interior of the water pipe (21) is connected to the interior of the spray pipe (22), and the spray pipe (25) is arranged horizontally along the inner wall of the water pipe (21). The interior of the spray pipe (25) is connected to the interior of the water pipe (21).

3. The evaporative condenser for chloromethane condensation production according to claim 1, characterized in that: The interior of the rotating head (26) is connected to the interior of the spray pipe (25). The spray heads (27) are arranged in a ring along the central point of the rotating head (26), and the spray heads (27) are inclined.

4. The evaporative condenser for chloromethane condensation production according to claim 1, characterized in that: The box structure (1) includes a condenser box (11), a condenser pipe (12) is fixedly connected to the inner wall of the condenser box (11), a support block (13) is fixedly connected to the inner wall of the condenser box (11), a water outlet pipe (14) is fixedly connected to the inner wall of the bottom of the condenser box (11), a baffle plate (15) is fixedly connected to the inner wall of the top of the condenser box (11), and a filter screen plate (16) is fixedly connected to the outer wall of the top of the condenser box (11).

5. The evaporative condenser for chloromethane condensation production according to claim 4, characterized in that: The outer wall of the support block (13) is fixedly connected to the outer wall of the condenser pipe (12), and the condenser pipe (12) is located inside the condenser box (11).

6. The evaporative condenser for chloromethane condensation production according to claim 1, characterized in that: The outer wall of the water pipe (21) is fixedly connected to the inner wall of the top of the condenser (11), the connecting pipe (24) is fixedly connected to the water outlet pipe (14) through a flange, the water pipe (21) is located above the condenser pipe (12), and the water pipe (21) is located below the baffle plate (15).

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