Evaporator assembly and liquid caustic soda evaporation and concentration device
By designing an evaporator assembly including an evaporator vacuum barrel, a pipeline connection mechanism, a sealing end and a blocking adjustment mechanism, the problem of the evaporator assembly in the liquid alkali evaporation and concentration device is easily scaled and alkaline with vapor phase is solved, and the clean water phase reflux and effective cleaning of the components are achieved.
Patent Information
- Application Number
- CN202421726172.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-22
- Publication Date
- 2025-05-30
- Estimated Expiration
- 2034-07-22
AI Technical Summary
In the existing liquid alkali evaporation and concentration devices, the evaporator components are prone to fouling, resulting in vapor phase alkaline, affecting the normal operation of the process water system.
An evaporator assembly is designed, including an evaporator vacuum barrel, a pipe connection mechanism, a sealing end and a blocking adjustment mechanism. Through the combination and installation of these components, a multi-effect connection and blocking adjustment of the evaporator assembly is realized, making it easy to clean and seal.
It effectively prevents the vapor phase from evaporating, ensures that the cleaned water phase can be directly returned to the liquid alkali evaporation and concentration device, provides a clean water source for the process water system, and reduces the scaling problem of evaporator components.
Smart Images
Figure CN222918117U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of liquid caustic soda evaporation and concentration devices, and particularly relates to an evaporator assembly and a liquid caustic soda evaporation and concentration device. Background Technique
[0002] In the production process of preparing cyclohexanone and cyclohexanol by cyclohexane oxidation, due to the deep oxidation reaction of cyclohexane to generate certain organic carboxylic acids and esters, and the decomposition of cyclohexyl hydroperoxide to generate a small amount of organic carboxylic acids, the product containing carboxylic acids and esters is subjected to a neutralization saponification reaction with an aqueous NaOH solution to generate organic carboxylate salts and dissolve them in the aqueous phase, and then removed by oil-water separation. The solid content in the waste alkali liquor can be concentrated to 45% (mass fraction, the same below) or higher, and part of the organic matter therein can be recovered. The concentrated waste alkali liquor is sent to a waste alkali incineration device for incineration treatment.
[0003] In the existing liquid caustic soda evaporation and concentration device, scale forms on the tube side of the heat exchanger in the evaporator assembly, and the evaporator assembly needs to be frequently shut down for cleaning, resulting in the vapor phase of evaporation being prone to carry alkali. After the vapor phase condenses and the oil and water are separated, both the aqueous phase and the oil phase carry a small amount of alkali, causing the aqueous phase to be unable to directly return to the process water system of the liquid caustic soda evaporation and concentration device for use. Content of the Utility Model
[0004] The purpose of the utility model is to provide an evaporator assembly and a liquid caustic soda evaporation and concentration device to solve the problems raised in the above background technique.
[0005] To achieve the above purpose, the utility model provides the following technical solution: An evaporator assembly includes an evaporator vacuum barrel and a sealing end. A pipeline connection mechanism is movably installed at the top of the evaporator vacuum barrel, and a series pipe is threadedly connected to one side of the pipeline connection mechanism. The sealing end is arranged on one side of the series pipe. A series barrel is fixed to the bottom end of the sealing end, and a single-effect evaporator barrel is installed on one side of the series barrel. A multi-effect connection end is arranged at the top of the single-effect evaporator barrel, and blocking adjustment mechanisms are arranged on both sides of the multi-effect connection end. A flange is threadedly connected to one side of the bottom end of the evaporator vacuum barrel.
[0006] Preferably, the pipeline connection mechanism is connected and installed on the sealing end through the series pipe for the connection and installation of the single-effect evaporator barrel.
[0007] Preferably, the multi-effect connection end is communicated with the blocking adjustment mechanism, and the multi-effect connection end is threadedly connected to the single-effect evaporator barrel.
[0008] Preferably, the pipeline connection mechanism includes a threaded pipe, a sealing sleeve ring, and a fastening ring sleeve. The fastening ring sleeve is movably installed inside the sealing sleeve ring, and the threaded pipe passes through the inside of the sealing sleeve ring and the fastening ring sleeve.
[0009] Preferably, the sealing collar and the fastening collar are threadedly fastened to the top end of the evaporator vacuum barrel, and the threaded pipe is fastened to the connection at the top end of the evaporator vacuum barrel.
[0010] Preferably, the blocking and adjusting mechanism includes a valve rod and a butterfly valve, and the butterfly valve is fixedly connected to the bottom end of the valve rod.
[0011] Preferably, the butterfly valve can be sealed on both sides of the multi-effect connection end by screwing the valve rod.
[0012] A liquid caustic soda evaporation and concentration device is provided with the above-mentioned evaporator assembly.
[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0014] 1. By setting the valve rod and the butterfly valve in the present utility model, the user can manually screw the valve rod and the butterfly valve to seal them on the multi-effect connection end, stop and close the connection between the tubes of the liquid caustic soda evaporation and concentration device and the multi-effect connection end, and stop and close the liquid caustic soda evaporation and concentration device and the single-effect evaporator barrel. When cleaning the dirt on the evaporator assembly of the evaporator vacuum barrel on the single-effect evaporator barrel, it can prevent the vapor phase of evaporation from easily carrying alkali. After the vapor phase condenses and the oil and water are separated, both the water phase and the oil phase contain a small amount of alkali, and cleaning is carried out, so that the water phase after cleaning directly returns to the liquid caustic soda evaporation and concentration device for use in the process water system.
[0015] 2. By setting the sealing collar and the fastening collar in the present utility model, the threaded pipe is threadedly fastened at the notch of the evaporator vacuum barrel. The sealing collar and the fastening collar can be fastened at the notch of the evaporator vacuum barrel for sealing. When the material side of the tubes of the liquid caustic soda evaporation and concentration device is scaled on the evaporator assembly, it is necessary to frequently stop the machine. The threaded pipe, the sealing collar and the fastening collar are disassembled, and the threaded pipe, the sealing collar and the fastening collar can be removed to clean the scale on the material side. The sealing collar and the fastening collar play the role of disassembly, installation and sealing, avoiding the vapor phase of evaporation from easily carrying alkali. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 is a three-dimensional structural diagram of the present utility model;
[0017] Figure 2 is a structural diagram of the pipeline connection mechanism of the present utility model;
[0018] Figure 3 is a structural diagram of the blocking and adjusting mechanism of the present utility model.
[0019] In the figure: 1. Evaporator vacuum barrel; 2. Pipeline connection mechanism; 3. Series pipe; 4. Sealed end; 5. Series barrel; 6. Multi-effect connection end; 7. Blocking and adjusting mechanism; 8. Single-effect evaporator barrel; 9. Flange; 10. Threaded pipe; 11. Sealing collar; 12. Fastening collar; 13. Valve rod; 14. Butterfly valve. Specific implementation mode
[0020] In order to clearly and completely describe the purpose, technical solution of the present utility model and make the advantages more clear, the following further details the embodiments of the present utility model with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present utility model, rather than all the embodiments, and are only used to explain the embodiments of the present utility model, not to limit the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present utility model. Embodiment
[0021] Please refer to Figures 1 - 3 , the present utility model provides a technical solution, an evaporator assembly, including an evaporator vacuum barrel 1 and a sealed end 4. A pipeline connection mechanism 2 is movably installed at the top end of the evaporator vacuum barrel 1, and a series pipe 3 is threadedly connected to one side of the pipeline connection mechanism 2. The sealed end 4 is arranged on one side of the series pipe 3. A series barrel 5 is fixed at the bottom end of the sealed end 4, and a single-effect evaporator barrel 8 is installed on one side of the series barrel 5. A multi-effect connection end 6 is arranged at the top end of the single-effect evaporator barrel 8. Blocking and adjusting mechanisms 7 are arranged on both sides of the multi-effect connection end 6. A flange 9 is threadedly connected to one side of the bottom end of the evaporator vacuum barrel 1. The pipeline connection mechanism 2 assembly is movably installed at the top end of the evaporator vacuum barrel 1, so that the series pipe 3 is threadedly connected to the pipeline connection mechanism 2. The series barrel 5 is installed on the evaporator vacuum barrel 1 through the series pipe 3. The single-effect evaporator barrel 8 is installed on the evaporator vacuum barrel 1 through the series barrel 5. The single-effect evaporator barrel 8 and the evaporator vacuum barrel 1 can be connected in series in multiple pots for evaporation and concentration. Then, the multi-effect connection end 6 is installed at the top end of the single-effect evaporator barrel 8 and is connected in multiple stages to the liquid caustic soda evaporation and concentration device. For the tube cleaning of the liquid caustic soda evaporation and concentration device, through the blocking and adjusting mechanism 7 assembly on the multi-effect connection end 6, the cleaning can be stopped and closed. The pipeline connection mechanism 2 is connected and installed on the sealed end 4 through the series pipe 3 for the connection and installation of the single-effect evaporator barrel 8. The single-effect evaporator barrel 8 is connected and installed to the evaporator vacuum barrel 1 through the series pipe 3 and the sealed end 4, which is beneficial for the single-effect evaporator barrel 8 and the evaporator vacuum barrel 1 to be connected in series in multiple pots for evaporation and concentration. The multi-effect connection end 6 is communicated with the blocking and adjusting mechanism 7. The multi-effect connection end 6 and the single-effect evaporator barrel 8 are threadedly connected. The single-effect evaporator barrel 8 can be fixedly installed on the liquid caustic soda evaporation and concentration device through the connected multi-effect connection end 6. The liquid caustic soda evaporation and concentration device and the single-effect evaporator barrel 8 are controlled to stop and close through the blocking and adjusting mechanism 7 assembly. Embodiment
[0022] As Figure 2 and Figure 3 shown, the pipeline connection mechanism 2 includes a threaded pipe 10, a sealing collar 11 and a fastening collar 12. The fastening collar 12 is movably installed inside the sealing collar 11. The threaded pipe 10 passes through the inside of the sealing collar 11 and the fastening collar 12. The sealing collar 11 and the fastening collar 12 are threadedly fastened to the top of the evaporator vacuum barrel 1. The threaded pipe 10 is fastened to the connection at the top of the evaporator vacuum barrel 1. The sealing collar 11 and the fastening collar 12 are movably installed at the top of the evaporator vacuum barrel 1, so that the sealing collar 11 and the fastening collar 12 are sealed at the notch of the evaporator vacuum barrel 1. Then, the threaded pipe 10 is threadedly connected inside the sealing collar 11 and the fastening collar 12. The threaded pipe 10 movably penetrates through the sealing collar 11 and the fastening collar 12. The sealing collar 11 and the fastening collar 12 are threadedly fastened to the notch of the evaporator vacuum barrel 1 through the threaded pipe 10. The sealing collar 11 and the fastening collar 12 can be fastened at the notch of the evaporator vacuum barrel 1 for sealing. When scale forms on the tube side of the liquid caustic evaporation and concentration device on the evaporator assembly, it is necessary to frequently stop the machine. The threaded pipe 10, the sealing collar 11 and the fastening collar 12 are disassembled, and the threaded pipe 10, the sealing collar 11 and the fastening collar 12 can be removed to clean the scale on the material side. The sealing collar 11 and the fastening collar 12 play the role of disassembly, installation and sealing, avoiding the easy occurrence of alkali entrainment in the evaporated vapor phase. The blocking and regulating mechanism 7 includes a valve rod 13 and a butterfly valve 14. The bottom end of the valve rod 13 is fixedly connected to the butterfly valve 14. The butterfly valve 14 can be sealed on both sides of the multi-effect connection end 6 by screwing the valve rod 13. The components of the blocking and regulating mechanism 7 are movably installed on both sides of the multi-effect connection end 6, so that the valve rod 13 and the butterfly valve 14 are installed inside it. When scale forms on the tube side of the liquid caustic evaporation and concentration device on the evaporator assembly and it is necessary to frequently stop the machine for cleaning, the user can manually screw the valve rod 13 and the butterfly valve 14 to seal them on the multi-effect connection end 6, and can stop and close the connection between the tube of the liquid caustic evaporation and concentration device and the multi-effect connection end 6, and can stop and close the liquid caustic evaporation and concentration device and the single-effect evaporator barrel 8. When cleaning the dirt on the evaporator assembly of the evaporator vacuum barrel 1 on the single-effect evaporator barrel 8, it is necessary to prevent the easy occurrence of alkali entrainment in the evaporated vapor phase. After the vapor is condensed and the oil and water are separated, both the water phase and the oil phase carry a small amount of alkali, and cleaning is carried out, so that the water phase after cleaning directly returns to the liquid caustic evaporation and concentration device for use in the process water system.
[0023] In actual use, the single-effect evaporator barrel 8 and the evaporator vacuum barrel 1 can be connected in series for multiple pots for evaporation and concentration. Then, the multi-effect connection end 6 is installed at the top of the single-effect evaporator barrel 8 and is connected in multiple stages and installed on the liquid caustic soda evaporation and concentration device. For the tube cleaning of the liquid caustic soda evaporation and concentration device, the blocking and adjusting mechanism 7 components are movably installed on both sides of the multi-effect connection end 6, so that the valve rod 13 and the butterfly valve 14 are installed inside it. When the scale forms on the material side of the tubes on the evaporator components and frequent shutdowns for cleaning are required, the user can manually turn the valve rod 13 and the butterfly valve 14 to seal on the multi-effect connection end 6, and can shut off the connection between the tubes of the liquid caustic soda evaporation and concentration device and the multi-effect connection end 6, and can shut off the liquid caustic soda evaporation and concentration device and the single-effect evaporator barrel 8. For the evaporator components of the evaporator vacuum barrel 1 on the single-effect evaporator barrel 8, for dirt cleaning, the sealing sleeve ring 11 and the fastening ring sleeve 12 are movably installed at the top of the evaporator vacuum barrel 1, so that the sealing sleeve ring 11 and the fastening ring sleeve 12 are sealed at the notch of the evaporator vacuum barrel 1. Then, the threaded tube 10 is threadedly connected inside the sealing sleeve ring 11 and the fastening ring sleeve 12, and the threaded tube 10 movably penetrates through the sealing sleeve ring 11 and the fastening ring sleeve 12. The sealing sleeve ring 11 and the fastening ring sleeve 12 are threadedly fastened at the notch of the evaporator vacuum barrel 1 through the threaded tube 10, and the sealing sleeve ring 11 and the fastening ring sleeve 12 can be fastened at the notch of the evaporator vacuum barrel 1 for sealing.
[0024] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. An evaporator assembly, comprising an evaporator vacuum barrel (1) and a sealing end (4), characterized in that: The top of the evaporator vacuum barrel (1) is movably provided with a pipe connection mechanism (2), and one side of the pipe connection mechanism (2) is threadedly connected to a series pipe (3), the sealing end (4) is arranged on one side of the series pipe (3), the bottom of the sealing end (4) is fixed with a series barrel (5), and one side of the series barrel (5) is provided with a single-effect evaporator barrel (8), the top of the single-effect evaporator barrel (8) is provided with a multi-effect connection end (6), and both sides of the multi-effect connection end (6) are provided with a blocking adjustment mechanism (7), and one side of the bottom of the evaporator vacuum barrel (1) is threadedly connected to a flange (9).
2. An evaporator assembly according to claim 1, characterized in that: The pipeline connection mechanism (2) is connected and installed on the sealing end (4) via a series pipe (3) and is used for connection and installation of a single-effect evaporator barrel (8).
3. An evaporator assembly according to claim 1, characterized in that: The multi-effect connection end (6) is connected to the blocking adjustment mechanism (7), and the multi-effect connection end (6) is threadedly connected to the single-effect evaporator barrel (8).
4. An evaporator assembly according to claim 1, characterized in that: The pipe connection mechanism (2) comprises a threaded pipe (10), a sealing collar (11) and a fastening ring sleeve (12); the fastening ring sleeve (12) is movably installed inside the sealing collar (11); and the threaded pipe (10) passes through the inside of the sealing collar (11) and the fastening ring sleeve (12).
5. An evaporator assembly according to claim 4, characterized in that: The sealing sleeve (11) and the fastening sleeve (12) are threadedly fastened to the top of the evaporator vacuum barrel (1), and the threaded tube (10) is fastened to the top connection of the evaporator vacuum barrel (1).
6. The evaporator assembly according to claim 1, characterized in that: The multi-effect connection end (6) comprises a valve stem (13) and a butterfly valve (14), and the bottom end of the valve stem (13) is fixedly connected to the butterfly valve (14).
7. An evaporator assembly according to claim 6, characterized in that: The butterfly valve (14) can be sealed on both sides of the multi-effect connection end (6) by twisting the valve stem (13).
8. A liquid alkali evaporation and concentration device, characterized in that: The liquid alkali evaporation and concentration device is equipped with an evaporator component as described in any one of claims 1-7.