Connecting pipeline for processing ethylhexyl palmitate

By designing cleaning and cooling systems and processing connection pipes with ethylhexyl palmitate of thermal insulation flange, the problem of pipeline residue affecting product quality is solved, efficient cleaning and heat management are achieved, and pipeline connection and maintenance are simplified.

CN223294448UActive Publication Date: 2025-09-02HUBEI CHUYI NEW MATERIAL CO LTD
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Patent Information

Application Number
CN202422605596.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-28
Publication Date
2025-09-02
Estimated Expiration
2034-10-28

AI Technical Summary

Technical Problem

During the processing process, the residues in the pipeline and valve affect the product quality due to the reaction heat, and the pipeline connection is inconvenient, resulting in difficulty in replacement.

Method used

An ethylhexyl palmitate processing connection pipe was designed, equipped with a cleaning pipe and a cooling system, combined with a heat insulation flange, for cleaning and cooling, avoiding heat affecting residues and product quality.

Benefits of technology

Effectively clean residues, reduce heat impact, ensure product quality, and simplify pipeline connection and maintenance.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223294448U_ABST
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Abstract

The utility model provides an ethylhexyl palmitate processing connecting pipeline which comprises a middle pipe, valves are connected to the two ends of the middle pipe, mounting pipes are connected to the sides, away from the middle pipe, of the valves, one mounting pipe is used for being connected with a reaction kettle, and the other mounting pipe is used for being externally connected with a pipeline. The middle pipe is connected with two cleaning pipes, and the cleaning pipes extend into the middle pipe and are used for enabling cleaning liquid to enter to wash residual products or raw materials in the middle pipe. The utility model provides an ethylhexyl palmitate processing connecting pipeline, which is convenient for cleaning residual products or raw materials in the pipeline, and prevents the residual products or raw materials from being heated by reaction waste heat, so that adverse effects of the residual products or raw materials on subsequent products are avoided. The pipeline can be cooled, heat diffused by reaction is neutralized, adverse effects of high temperature on the pipeline and residual products or raw materials in the pipeline are avoided, and the product quality is guaranteed.
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Description

Technical Field

[0001] The utility model relates to the technical field of ethylhexyl palmitate processing, in particular to an ethylhexyl palmitate processing connecting pipe. Background Art

[0002] Ethylhexyl palmitate is a high-purity higher fatty acid ester product, mainly used as a raw material for cosmetics. It is a colorless and transparent liquid.

[0003] In the processing of ethylhexyl palmitate, esterification reaction is generally used, that is, the raw materials are added into the reactor, and then the reaction temperature and pressure are controlled to carry out esterification reaction to obtain ethylhexyl palmitate, and finally the product is sent out through a pipeline for storage.

[0004] However, in actual use, after ethylhexyl palmitate is transported through the pipeline, some ethylhexyl palmitate will remain on the inner wall of the pipeline and inside the valve connected to the pipeline. During the subsequent esterification reaction, the heat generated by the reactor will be transferred to the pipeline, thereby heating the residual ethylhexyl palmitate in the pipeline. The secondary heating can easily cause unpredictable changes in the ethylhexyl palmitate and even affect the service life of the pipeline and valve. The mixing of the newly produced ethylhexyl palmitate product and the defective product produced by the secondary heating in the pipeline will also affect the quality of the ethylhexyl palmitate product.

[0005] The raw material feed pipe connected to the ethylhexyl palmitate reactor also has raw materials attached to the pipe, and the quality of the raw materials is also affected by the residual heat of the reactor;

[0006] In particular, pipes directly connected to other equipment are difficult to replace and are more likely to have the above-mentioned problems, which is also a problem existing in existing reaction vessel pipe connections. Utility Model Content

[0007] The main purpose of the utility model is to provide an ethylhexyl palmitate processing connecting pipe to solve the problem that the connecting pipe of the ethylhexyl palmitate esterification reaction container is easily affected by the reaction heat.

[0008] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0009] An ethylhexyl palmitate processing connecting pipe includes an intermediate pipe, both ends of the intermediate pipe are connected to valves, and the side of the valve away from the intermediate pipe is connected to a mounting pipe, one mounting pipe is used to connect to a reactor, and the other mounting pipe is used to connect to an external pipe;

[0010] The middle tube is connected to two cleaning tubes, which extend into the interior of the middle tube and are used for cleaning liquid to enter and flush the residual products or raw materials in the middle tube.

[0011] In a preferred solution, one of the cleaning pipes is connected to the cleaning liquid storage tank via a first connecting pipe, and a first water pump is provided in the first connecting pipe;

[0012] Another cleaning pipe is connected to the wastewater treatment unit.

[0013] In the preferred solution, a cooling cavity is provided in the wall of the intermediate tube, and two cooling water pipes are connected to the intermediate tube. The cooling water pipes extend into the cooling cavity, and the cooling liquid enters the cooling cavity through the cooling water pipes for cooling to avoid excessive temperature.

[0014] In a preferred solution, one of the cooling water pipes is connected to the bottom end of the water tank via a second connecting pipe, and the second connecting pipe is connected to a second water pump;

[0015] Another cooling water pipe is connected to the top of the water tank through another second connecting pipe.

[0016] In a preferred solution, a cavity is provided in the wall of the installation tube, a transfer tube is provided between the installation tube and the intermediate tube, and the cooling chamber and the cavity are connected via the transfer tube.

[0017] In a preferred solution, the ends of the installation pipe and the intermediate pipe are both provided with thermal insulation flanges, which are used to connect to conventional flanges of a reactor, a valve or an external pipeline.

[0018] In a preferred embodiment, the thermal insulation flange includes a fixing plate connected to the mounting pipe or the intermediate pipe;

[0019] A heat insulation plate is provided on the end surface of the fixed disk, and the heat insulation plate is embedded in the interior of the fixed disk, and a reinforcement ring is provided inside the fixed disk;

[0020] The fixed disk and the heat insulation plate are both annular, and are provided with multiple through holes, which are adapted to the connecting holes of the conventional flange. The fixed disk and the heat insulation plate are connected and fixed to the conventional flange by bolts and nuts. The heat insulation plate is located between the fixed disk and the conventional flange, and the bolts pass through the through holes and the connecting holes.

[0021] In a preferred embodiment, a plurality of first thermal insulation sleeves are provided on the end face of the thermal insulation board, the first thermal insulation sleeves are located in the through hole of the fixed disk, a plurality of thermal insulation pads are provided on the side of the fixed disk away from the thermal insulation board, the thermal insulation pads are connected to the second thermal insulation sleeves, the second thermal insulation sleeves are located in the through hole of the fixed disk, and the bolts pass through the second thermal insulation sleeves and the first thermal insulation sleeves.

[0022] The utility model provides a connecting pipe for processing ethylhexyl palmitate, which has the following beneficial effects by adopting the above solution:

[0023] 1. It is convenient to clean the residual products or raw materials in the pipeline to avoid the residual heat of the reaction from heating the residual products or raw materials, thereby avoiding the residual products or raw materials from having adverse effects on subsequent products.

[0024] 2. It can cool the pipeline, neutralize the heat of reaction diffusion, avoid the adverse effects of high temperature on the pipeline and the products or raw materials remaining inside it, and ensure product quality.

[0025] 3. Isolate the transfer of reaction heat to the pipeline, further reduce the impact of high temperature on the pipeline and the residual products or raw materials inside it, and ensure product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0027] Figure 1 This is a schematic diagram of the structure of the utility model after the connection pipeline of the ethylhexyl palmitate processing is connected;

[0028] Figure 2 This is a schematic structural diagram of a connecting pipeline for processing ethylhexyl palmitate in the utility model;

[0029] Figure 3 This is a cross-sectional view of a connecting pipe for processing ethylhexyl palmitate according to the present invention;

[0030] Figure 4 It is a structural schematic diagram of the thermal insulation flange of the utility model;

[0031] Figure 5 It is a structural schematic diagram of the transfer tube of the utility model.

[0032] In the figure: reactor 1, mounting pipe 2, cavity 201, valve 3, intermediate pipe 4, cooling chamber 401, cleaning liquid storage tank 501, first connecting pipe 502, cleaning pipe 503, first water pump 504, wastewater treatment unit 505, water tank 601, second connecting pipe 602, cooling water pipe 603, second water pump 604, insulation flange 7, fixing plate 701, insulation plate 702, reinforcement ring 703, first insulation sleeve 704, insulation pad 705, second insulation sleeve 706, bolts 801, nuts 802, adapter tube 9. DETAILED DESCRIPTION

[0033] Example 1:

[0034] like Figure 1 and 2As shown, a connecting pipeline for processing ethylhexyl palmitate includes an intermediate pipe 4, both ends of which are connected to valves 3. The valves 3 can use pipeline valves commonly used in existing reactors. The side of the valve 3 away from the intermediate pipe 4 is connected to a mounting pipe 2. One mounting pipe 2 is used to connect to a reactor 1. The reactor 1 refers to a reactor used for processing ethylhexyl palmitate in the prior art, and also refers to a commonly used reactor, or other thermal reaction vessel. The other mounting pipe 2 is used to connect to an external pipeline, such as a pipeline connecting a storage device to the reactor or a pipeline connecting a raw material storage tank to the reactor, and the specific connection depends on the actual connected pipeline.

[0035] The middle tube 4 is connected to two cleaning tubes 503 , which extend into the interior of the middle tube 4 and are used for cleaning liquid to enter and flush the residual products or raw materials in the middle tube 4 .

[0036] During use, after the discharge or feeding is completed, the valve is closed, and then the cleaning liquid enters through the cleaning pipe 503 to flush the residual product or raw material in the intermediate pipe 4, and then discharged through another cleaning pipe 503 to complete the flushing, thereby preventing the residual product or raw material from being affected by the heat transferred from the reactor, and thus preventing the residual product or raw material from mixing into the product, thereby ensuring the quality of the product.

[0037] In a preferred embodiment, one of the cleaning pipes 503 is connected to the cleaning liquid storage tank 501 via a first connecting pipe 502. A first water pump 504 is provided in the first connecting pipe 502. The first water pump 504 can be a common water pump.

[0038] Another cleaning pipe 503 is connected to a wastewater treatment unit 505 , and the wastewater treatment unit 505 can be wastewater treatment equipment in the prior art.

[0039] When in use, the first water pump 504 is started to send the cleaning liquid in the cleaning liquid storage tank 501 into the intermediate pipe 4 through the first connecting pipe 502 and the cleaning pipe 503, and then into the wastewater treatment unit 505 through another cleaning pipe 503.

[0040] The cleaning liquid can be any commonly used cleaning liquid, and can also be water according to actual conditions.

[0041] Example 2:

[0042] like Figure 1 、 2 As shown in Figure 3, a cooling chamber 401 is provided in the wall of the intermediate tube 4. The intermediate tube 4 is connected to two cooling water pipes 603. The cooling water pipes 603 extend into the cooling chamber 401. The cooling liquid enters the cooling chamber 401 through the cooling water pipes 603 for cooling to avoid excessive temperature.

[0043] The intermediate tube 4 is cooled by the water-cooling liquid, thereby neutralizing the heat transferred from the reactor 1, avoiding excessive temperature in the intermediate tube 4 and the pipes connected thereto, thereby avoiding adverse effects of high temperature on the pipes and the products or raw materials remaining therein, thereby ensuring product quality.

[0044] In a preferred solution, one of the cooling water pipes 603 is connected to the bottom end of the water tank 601 through a second connecting pipe 602, and the second connecting pipe 602 is connected to a second water pump 604. The second water pump 604 can be a common water pump.

[0045] Another cooling water pipe 603 is connected to the top of the water tank 601 through another second connecting pipe 602 .

[0046] The water tank 601 is used to store water-cooling liquid. The water-cooling liquid can be any existing liquid. The water-cooling liquid is cooled by using existing technology, such as a heat exchanger.

[0047] When in use, start the second water pump 604 to send the cooling liquid in the water tank 601 into the cooling chamber 401 through the second connecting pipe 602 and the cooling water pipe 603, and then return to the water tank 601 through another cooling water pipe 603.

[0048] In a further embodiment, Figure 5 As shown, as needed, a cavity 201 is provided in the wall of the mounting tube 2, and a transfer tube 9 is provided between the mounting tube 2 and the intermediate tube 4. The cooling chamber 401 is connected to the cavity 201 through the transfer tube 9, so that the water-cooling liquid can flow into the cavity 201 of the mounting tube 2, so that the mounting tube 2 can also be cooled to avoid the influence of high temperature.

[0049] Example 3:

[0050] like Figure 2 、 3 As shown in Figure 4, the ends of the mounting pipe 2 and the intermediate pipe 4 are both provided with insulating flanges 7, which are used to connect to the reactor 1, the valve 3 or the conventional flanges of the external pipeline. The insulating flanges 7 can reduce the heat transfer from the reactor 1 to the pipeline, further reducing the impact on the pipeline and the products or raw materials remaining therein.

[0051] In a preferred embodiment, the thermal insulation flange 7 includes a fixing plate 701 connected to the mounting pipe 2 or the intermediate pipe 4;

[0052] A heat shield 702 is provided on the end face of the fixed disk 701. The heat shield 702 is embedded in the interior of the fixed disk 701. A reinforcement ring 703 is provided inside the fixed disk 701 to increase the strength of the heat shield 702.

[0053] The fixed disk 701 and the heat insulation plate 702 are both annular, and are provided with multiple through holes, which are adapted to the connection holes of the conventional flange. The fixed disk 701 and the heat insulation plate 702 are connected and fixed to the conventional flange by bolts 801 and nuts 802. The heat insulation plate 702 is located between the fixed disk 701 and the conventional flange, and the bolts 801 pass through the through holes and the connection holes.

[0054] An insulation board 702 is provided between the fixed disk 701 and the conventional flange. The insulation board 702 can isolate heat and prevent high temperature from adversely affecting the pipeline and the products or raw materials remaining therein, thereby ensuring product quality without affecting the pipeline connection.

[0055] In the preferred solution, a plurality of first thermal insulation sleeves 704 are provided on the end face of the thermal insulation plate 702, the first thermal insulation sleeves 704 are located in the through hole of the fixed disk 701, and a plurality of thermal insulation pads 705 are provided on the side of the fixed disk 701 away from the thermal insulation plate 702, the thermal insulation pads 705 are connected to the second thermal insulation sleeve 706, the second thermal insulation sleeve 706 is located in the through hole of the fixed disk 701, and the bolts 801 pass through the second thermal insulation sleeve 706 and the first thermal insulation sleeve 704, so that the connected bolts 801 will not directly contact the fixed disk 701, thereby further increasing the thermal insulation effect and reducing heat transfer.

[0056] The above-mentioned insulation board 702, insulation pad 705, first insulation sleeve 704 and second insulation sleeve 706 are all made of existing insulation materials, such as aerogel, ceramic fiber, vacuum board or rock wool, etc. The specific method depends on the actual situation. This application does not limit the insulation material.

[0057] This application is mainly used for the production and processing of ethylhexyl palmitate, but is not limited to the processing of ethylhexyl palmitate, and ethylhexyl palmitate cannot be interpreted as a limitation to this application.

[0058] The above embodiments are merely preferred technical solutions of the present invention and should not be construed as limiting the present invention. The scope of protection of the present invention shall be the technical solutions set forth in the claims, including equivalent alternatives to the technical features of the technical solutions set forth in the claims. Equivalent alternatives and improvements within this scope are also within the scope of protection of the present invention.

Claims

1. A connecting pipe for processing ethylhexyl palmitate, characterized in that: It comprises an intermediate tube (4), both ends of the intermediate tube (4) are connected to valves (3), and the side of the valve (3) away from the intermediate tube (4) is connected to a mounting tube (2), one of the mounting tubes (2) is used to connect to the reactor (1), and the other mounting tube (2) is used to connect to an external pipeline; The intermediate tube (4) is connected to two cleaning tubes (503), which extend into the interior of the intermediate tube (4) and are used for cleaning liquid to enter and flush out residual products or raw materials in the intermediate tube (4).

2. According to claim 1, a palmitic acid ethylhexyl ester processing connecting pipe is characterized in that: one The cleaning pipe (503) is connected to the cleaning liquid storage tank (501) via a first connecting pipe (502), and a first water pump (504) is provided in the first connecting pipe (502); Another cleaning pipe (503) is connected to the wastewater treatment unit (505).

3. The ethylhexyl palmitate processing and connecting pipe according to claim 1, wherein: A cooling chamber (401) is provided in the wall of the intermediate tube (4). The intermediate tube (4) is connected to two cooling water pipes (603). The cooling water pipes (603) extend into the cooling chamber (401). Cooling liquid enters the cooling chamber (401) through the cooling water pipes (603) to cool the temperature, thereby preventing the temperature from being too high.

4. The ethylhexyl palmitate processing connecting pipe according to claim 3, characterized in that: One of the cooling water pipes (603) is connected to the bottom end of the water tank (601) via a second connecting pipe (602), and the second connecting pipe (602) is connected to a second water pump (604); Another cooling water pipe (603) is connected to the top of the water tank (601) through another second connecting pipe (602).

5. The ethylhexyl palmitate processing connecting pipe according to claim 3, characterized in that: A cavity (201) is provided in the wall of the installation tube (2), a transfer tube (9) is provided between the installation tube (2) and the intermediate tube (4), and the cooling chamber (401) is connected to the cavity (201) via the transfer tube (9).

6. The ethylhexyl palmitate processing and connecting pipe according to claim 5, characterized in that: The ends of the installation pipe (2) and the intermediate pipe (4) are both provided with heat-insulating flanges (7), and the heat-insulating flanges (7) are used to be connected to conventional flanges of the reactor (1), the valve (3) or the external pipeline.

7. The ethylhexyl palmitate processing and connecting pipe according to claim 6, characterized in that: The thermal insulation flange (7) includes a fixing plate (701) connected to the mounting pipe (2) or the intermediate pipe (4); A heat insulation plate (702) is provided on the end surface of the fixed disk (701), and the heat insulation plate (702) is embedded in the interior of the fixed disk (701). A reinforcement ring (703) is provided inside the fixed disk (701); The fixed disk (701) and the heat insulation plate (702) are both annular, and a plurality of through holes are provided in the fixed disk (701) and the heat insulation plate (702), and the through holes are adapted to the connection holes of the conventional flange. The fixed disk (701) and the heat insulation plate (702) are connected and fixed to the conventional flange via bolts (801) and nuts (802), and the heat insulation plate (702) is located between the fixed disk (701) and the conventional flange, and the bolts (801) pass through the through holes and the connection holes.

8. The ethylhexyl palmitate processing and connecting pipe according to claim 7, characterized in that: The end surface of the heat insulation plate (702) is provided with a plurality of first heat insulation sleeves (704), the first heat insulation sleeves (704) are located in the through hole of the fixed disk (701), and a plurality of heat insulation pads (705) are provided on the side of the fixed disk (701) away from the heat insulation plate (702), the heat insulation pads (705) are connected to the second heat insulation sleeves (706), the second heat insulation sleeves (706) are located in the through hole of the fixed disk (701), and the bolts (801) pass through the second heat insulation sleeves (706) and the first heat insulation sleeves (704).