CN216499253U - Automatic density control device for chlorination process of bio-ester plasticizer - Google Patents
Automatic density control device for chlorination process of bio-ester plasticizer Download PDFInfo
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- CN216499253U CN216499253U CN202122917093.2U CN202122917093U CN216499253U CN 216499253 U CN216499253 U CN 216499253U CN 202122917093 U CN202122917093 U CN 202122917093U CN 216499253 U CN216499253 U CN 216499253U
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Abstract
The utility model discloses a device for automatically controlling the density of a chlorination process of a bio-ester plasticizer, which comprises a reaction kettle 1, a glass lining pipeline 2, a flow regulating valve 3, a cylindrical glass visual cup 4, a densimeter 5 with a density numerical value display instrument 8, a temperature measuring meter 6, a check valve 7 and a circulating pump 9, wherein the reaction kettle is provided with a water inlet pipe and a water outlet pipe; the bottom outlet of the reaction kettle 1 is divided into two paths after being connected with a circulating pump 9 through a glass lining pipeline 2, the first path is directly circularly connected back to the reaction kettle 1, and the other path is sequentially connected with a flow regulating valve 3, a cylindrical glass visual cup 4, a densimeter 5, a temperature measuring meter 6 and a check valve 7 and then is converged with the first path; the density value display instrument 8 is arranged at a high position so as to be observed and read by an operator. The method has the advantages of reliable and efficient material density detection in the chlorination process of the biological ester plasticizer, safe operation and no pollution.
Description
Technical Field
The utility model relates to the technical field of production devices of bio-ester plasticizers of organic chemical products, in particular to an automatic density control device for a chlorination process of a bio-ester plasticizer.
Background
At present, the production of the chlorinated environment-friendly plasticizer for fatty acid methyl ester is that addition and substitution reaction are carried out through chlorine, materials can increase the density along with the reaction in the reaction process, the reaction is carried out by taking a density index according to the requirements of customers as an end point, and therefore, when the reaction is close to the end point, the reaction kettle needs to be manually and frequently sampled, and the converted density is measured according to the temperature of the materials. The existing defects are that: due to manual operation, the following instability factors are caused: firstly, the product density error is large; secondly, the materials contain a large amount of hydrogen chloride in the reaction process, great potential safety hazards exist in manual sampling, and simultaneously released hydrogen chloride gas affects the environment and the human body; thirdly, materials which are frequently sampled are sucked into the reaction kettle again, so that the operation is complicated and mistakes are easy to make.
Disclosure of Invention
The utility model aims to provide an automatic density control device for a chlorination process of a bio-ester plasticizer, which has the advantages of reliable and efficient density detection, safe operation and no pollution.
In order to realize the aim, the automatic density control device for the chlorination process of the bio-ester plasticizer comprises a reaction kettle 1, a glass lining pipeline 2, a flow regulating valve 3, a cylindrical glass visual cup 4, a densimeter 5 with a density numerical value display instrument 8, a temperature measuring meter 6, a check valve 7 and a circulating pump 9; the bottom outlet of the reaction kettle 1 is divided into two paths after being connected with a circulating pump 9 through a glass lining pipeline 2, the first path is directly connected back to the reaction kettle 1 in a circulating way, and the other path is connected with a flow regulating valve 3, a cylindrical glass visual cup 4, a densimeter 5, a temperature measuring meter 6 and a check valve 7 in sequence and then is converged with the first path; the density value display instrument 8 is arranged at a high position so as to be observed and read by an operator.
The materials in the reaction kettle continuously circulate in the chlorination process, the density value of the materials is detected by the densimeter 5 and displayed by the density value display instrument 8 in real time in the circulation process, production operators can quickly determine the corresponding density of the materials at the normal temperature of 25 ℃ through the chlorinated plasticizer proportion comparison table to operate according to the corresponding material temperature displayed by the density value and the temperature measurement table 6, and the reaction is stopped when the corresponding density index at the normal temperature of 25 ℃ reaches the target density index, so that the next production operation is carried out.
By adopting the automatic density control device for the chlorination process of the bio-ester plasticizer, the temperature meter 6 and the densimeter with the density numerical display instrument 8 are utilized to automatically display the real-time temperature and the density of the material in the reaction process of the material in the reaction kettle, and the density corresponding to the real-time material at the normal temperature of 25 ℃ is quickly determined through the comparison table of the specific gravity of the chlorinated plasticizer, so that the device has the following technical characteristics and beneficial effects:
1. the automatic detection of the real-time density of the product is realized, and the following problems are avoided: firstly, manual sampling and density measurement are not accurate; secondly, potential safety hazards caused by manual sampling; thirdly, the production workshop environment is polluted by a large amount of hydrogen chloride in the sampling material belt during manual operation.
2. The stability of the product quality is ensured.
3. Simple structure, low manufacturing and maintenance cost and convenient and reliable use.
Drawings
FIG. 1 is a schematic structural diagram of an automatic density control device for a chlorination process of a bio-ester plasticizer.
Reference numerals: the device comprises a reaction kettle 1, a glass lining pipeline 2, a flow regulating valve 3, a cylindrical glass visual cup 4, a densimeter 5, a temperature measuring meter 6, a check valve 7, a density numerical value display instrument 8 and a circulating pump 9.
Detailed Description
The automatic density control device for the chlorination process of the bio-ester plasticizer according to the present invention will be further described in detail with reference to the accompanying drawings and the following detailed description.
As shown in figure 1, the automatic density control device for the chlorination process of the bio-ester plasticizer comprises a reaction kettle 1, a glass lining pipeline 2, a flow regulating valve 3, a cylindrical glass visual cup 4, a densimeter 5 with a density numerical indicator 8, a temperature measuring meter 6, a check valve 7 and a circulating pump 9; the bottom outlet of the reaction kettle 1 is divided into two paths after being connected with a circulating pump 9 through a glass lining pipeline 2, the first path is directly connected back to the reaction kettle 1 in a circulating way, and the other path is connected with a flow regulating valve 3, a cylindrical glass visual cup 4, a densimeter 5, a temperature measuring meter 6 and a check valve 7 in sequence and then is converged with the first path; the density value display instrument 8 is arranged at a high position so as to be observed and read by an operator.
During production operation, a power supply and a valve of related equipment are started, a flow regulating valve 3 is started, materials circulate in a reaction kettle 1 through a circulating pump 9, enter a cylindrical glass visual cup 4 through a glass lining pipeline 2 through the flow regulating valve 3 in the circulation process, and circulate back to the reaction kettle 1 through a check valve 7 after passing through a density meter 5 and a temperature measuring meter 6, the density value of the materials can be determined and converted into the density corresponding to the normal temperature of 25 ℃ through the meter 1 according to the real-time temperature and the density which are actually measured, and the reaction is stopped when the density index corresponding to the normal temperature of 25 ℃ reaches the target density index, so that the next production operation is carried out.
TABLE 1 comparison table of specific gravity of chlorinated plasticizer
Note: the standard temperature is 25 ℃, for example: the density of the material at 90 ℃ is shown as 1.0675, the density is 1.0675+ 0.0325-1.1 g/cm3 at the state of 25 ℃, and the density of the chlorinated plasticizer required by customers is usually 1.1g/cm3 at the state of 25 ℃ and normal temperature; in actual production, the maximum temperature of the real-time material is lower than 90 ℃, and the minimum temperature is higher than 70 ℃.
Claims (1)
1. An automatic density control device for a chlorination process of a bio-ester plasticizer is characterized in that: the device comprises a reaction kettle (1), a glass lining pipeline (2), a flow regulating valve (3), a cylindrical glass visual cup (4), a densimeter (5) with a density numerical value display instrument (8), a temperature measuring meter (6), a check valve (7) and a circulating pump (9); the bottom outlet of the reaction kettle (1) is divided into two paths after being connected with a circulating pump (9) through a glass lining pipeline (2), the first path is directly connected back to the reaction kettle (1) in a circulating way, and the other path is connected with a flow regulating valve (3), a cylindrical glass sight cup (4), a densimeter (5), a temperature measuring meter (6) and a check valve (7) in sequence and then is converged with the first path; the density numerical indicator (8) is arranged at a high position so as to be observed and read by an operator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122917093.2U CN216499253U (en) | 2021-11-25 | 2021-11-25 | Automatic density control device for chlorination process of bio-ester plasticizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122917093.2U CN216499253U (en) | 2021-11-25 | 2021-11-25 | Automatic density control device for chlorination process of bio-ester plasticizer |
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| CN216499253U true CN216499253U (en) | 2022-05-13 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114984859A (en) * | 2022-07-05 | 2022-09-02 | 广东新翔星科技股份有限公司 | Silicon oil cracking reaction device capable of controlling input amount of alcohol alkali liquor |
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2021
- 2021-11-25 CN CN202122917093.2U patent/CN216499253U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114984859A (en) * | 2022-07-05 | 2022-09-02 | 广东新翔星科技股份有限公司 | Silicon oil cracking reaction device capable of controlling input amount of alcohol alkali liquor |
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