CN219291353U - Chloroethane feeding device - Google Patents
Chloroethane feeding device Download PDFInfo
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- CN219291353U CN219291353U CN202223521426.0U CN202223521426U CN219291353U CN 219291353 U CN219291353 U CN 219291353U CN 202223521426 U CN202223521426 U CN 202223521426U CN 219291353 U CN219291353 U CN 219291353U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
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Abstract
The utility model provides a chloroethane feeding device which characterized in that: the nitrogen generator comprises a nitrogen generator, a first pressure gauge, a first pneumatic ball valve, a first one-way valve, a first pneumatic regulating valve, a first pressure transmitter, a first chloroethane steel cylinder, a second dichloroethane steel cylinder, a second pressure gauge, a second one-way valve, a second pneumatic regulating valve, a second pressure transmitter, a second pneumatic ball valve and a reaction kettle. The utility model has the advantages of convenient operation, high automation and the like, is easy to be applied to the industrial amplified production with automation, onsite and high efficiency, and can be used as main equipment and material adding method in the future hazardous field.
Description
Technical Field
The utility model belongs to the technical field of chemical industry, and particularly relates to a chloroethane feeding device.
Background
Since chloroethane is a low boiling point, extremely flammable substance, there may be a risk of irreversible action, harmful to aquatic organisms, and possibly causing long-term adverse effects in the aquatic environment; and high requirements are put on the use and addition of materials.
Currently, three liquid feeding methods are commonly used in industry, including vacuum inhalation, pump delivery and gas compression.
The suction method mainly comprises the steps of pumping the equipment into a negative pressure body by using a vacuum pump, opening a charging valve, and sucking the materials into the equipment by using pressure; the method has requirements on the level difference of equipment and materials, and is not applicable when the level difference is too high; the method is not suitable for volatile materials with low boiling points, and the loss of the materials is easy to cause; because of the negative pressure formed by the method, when the system leaks, an explosive mixture of chloroethane is easy to form.
The pump delivery method uses a pump to pump into the equipment, and cavitation is likely to occur because of the low boiling point of chloroethane.
Disclosure of Invention
The utility model discloses a chloroethane feeding device which comprises a weighing system, an emergency cutting-off system, a nitrogen protection system, a safety interlocking system, a corresponding gas path and a valve element, and mainly solves the problem of difficult feeding in the prior art, and provides a new adding mode.
The utility model relates to a chloroethane feeding device which comprises a nitrogen making machine 1, a first pressure gauge 3, a first pneumatic ball valve 4, a first one-way valve 5, a first pneumatic regulating valve 7, a first pressure transmitter 9, a first chloroethane steel cylinder 18, a second dichloroethane steel cylinder 23, a second pressure gauge 10, a second one-way valve 11, a second pneumatic regulating valve 13, a second pressure transmitter 15, a second pneumatic ball valve 16 and a reaction kettle 17.
In the above-mentioned chloroethane charging device, the first chloroethane steel cylinder 18 is provided with a first air inlet 18-1 and a first air outlet 18-2, and the first air inlet 18-1 is communicated with a nitrogen pipeline through a first air inlet valve 20; the nitrogen pipeline is communicated with the air outlet of the nitrogen making machine 1; a first pressure gauge 3, a first pneumatic ball valve 4, a first one-way valve 5, a first pneumatic regulating valve 7 and a first pressure transmitter 9 are sequentially arranged on the nitrogen pipeline from the nitrogen generator 1 to the first air inlet 18-1; the first air outlet 18-2 is communicated with a feeding pipeline through a first air outlet valve 19; the feeding pipeline is communicated with a feeding port of the reaction kettle 17; the feeding pipeline is provided with a second pressure gauge 10, a second one-way valve 11, a second pneumatic regulating valve 13, a second pressure transmitter 15 and a second pneumatic ball valve 16 in sequence from the first air outlet 18-2 to the reaction kettle 17.
In the device, a first front valve 8 and a first rear valve 6 are respectively arranged at the front and the rear of the first pneumatic control valve 7, and the first front valve 8 is positioned between the first pneumatic control valve 7 and the first pressure transmitter 9; the first rear valve 6 is positioned between the first pneumatic adjusting valve 7 and the first one-way valve 5; the nitrogen pipeline is provided with a safe nitrogen conveying pipeline, an inlet of the safe nitrogen conveying pipeline is connected to the nitrogen pipeline between the first one-way valve 5 and the first rear valve 6, an outlet of the safe nitrogen conveying pipeline is connected to the nitrogen pipeline between the first pressure transmitter 9 and the first front valve 8, and the safe nitrogen conveying pipeline is also provided with a first protection valve 24.
In the device, a second front valve 14 and a second rear valve 12 are respectively arranged at the front and the rear of the second pneumatic control valve 13, and the second front valve 14 is positioned between the second pneumatic control valve 13 and the second pressure transmitter 15; the second rear valve 12 is positioned between the second pneumatic control valve 13 and the second one-way valve 11; the feeding pipeline is provided with a safe conveying feeding pipeline, an inlet of the safe conveying feeding pipeline is connected to the feeding pipeline between the second one-way valve 11 and the second rear valve 12, an outlet of the safe conveying feeding pipeline is connected to the feeding pipeline between the second pressure transmitter 15 and the second front valve 14, and the safe conveying feeding pipeline is also provided with a second protection valve 25.
In the device, the second dichloroethane steel cylinder 23 is provided with a second air inlet 23-1 and a second air outlet 23-2, and the second air inlet 23-1 is communicated with a nitrogen pipeline through a second air inlet valve 22; the second air outlet 23-2 is communicated with the feeding pipeline through a second air outlet valve 21.
In the device, the first chloroethane steel cylinder 18 is positioned on the first weighing module 29, and the first weighing module 29 is communicated with the DCS controller 28; meanwhile, the DCS controller 28 is also communicated with the first pneumatic ball valve 4, the first pneumatic regulating valve 7, the first pressure transmitter 9, the second pneumatic regulating valve 13, the second pressure transmitter 15 and the second pneumatic ball valve 16; the DCS controller 28 is also connected with the axial flow fan 2; interlock control is implemented by DCS controller 28.
In the device, a first pressure gauge 3 is arranged on a nitrogen pipeline between the nitrogen generator 1 and the first pneumatic ball valve 4; a second pressure gauge 10 is arranged on the feeding pipeline between the second one-way valve 11 and the first air outlet valve 19.
In the above device, the second dichloroethane steel cylinder 23 is located on the second weighing module 27, and the second weighing module 27 is in communication with the DCS controller 28.
In the above arrangement, the DCS controller 28 is also connected to the flammable alarm 26.
The utility model relates to a chloroethane feeding device which is carried out according to the following steps:
(1) Placing a first chloroethane steel cylinder on a first weighing module through a monorail electric hoist crane, setting a charging speed and a charging weight, setting a nitrogen pressure, and starting to add chloroethane into the reaction kettle;
(2) The DCS controller is used for automatically controlling the nitrogen pressure and starting the axial flow fan; the nitrogen pressurization consists of a first pressure transmitter, a first pneumatic regulating valve, a first pressure gauge and a nitrogen pipeline/charging pipeline, and the pneumatic regulating valve is used for controlling the internal and external pressure of the chloroethane steel cylinder to regulate the height to which the chloroethane can be pressurized; the nitrogen first pressure transmitter and the first pneumatic regulating valve are used for controlling the pressure in the chloroethane steel cylinder to be stable in an interlocking manner, and the pressure stabilizing is completed through a DCS controller;
(3) The adding amount of the chloroethane is controlled by interlocking of the weighing module and the second pneumatic regulating valve, and the second pneumatic regulating valve is closed after the accumulated weight reaches; the sequential weight of the added chloroethane is controlled by the first weighing module and the second pneumatic adjusting valve in an interlocking way, and the actual value of the instantaneous weight of the second pneumatic adjusting valve is adjusted through the DCS controller after the sequential weight is set.
In the method, the second ethylene dichloride steel cylinder is used for switching the work of the first ethylene dichloride steel cylinder.
In the method, the reverse series of the chloroethane into the nitrogen system is prevented by the first one-way valve.
In the method, in order to prevent the material of the reaction system from being reversely strung into the chloroethane steel cylinder, the reaction is completed by a second one-way valve.
In the method, the safety linkage when the chloroethane leaks is completed by the combustible gas alarm, the axial flow fan and the pneumatic ball valve and is controlled by the DCS.
The method realizes the interlocking control of the DCS controller and has high degree of automation; in order to prevent automatic abnormality, a one-way valve is additionally arranged on the device, so that materials are prevented from being reversely strung when the nitrogen pressure is too low, and the pressure of a nitrogen main pipe is smaller than the design pressure of the device.
In order to explore an effective adding path of the material, the utility model mainly prevents leakage and generates potential safety hazard. The nitrogen can be considered to be sent into the chloroethane steel bottle, the pressure in the bottle is kept, the chloroethane steel bottle is placed on the weighing module, then the materials are transferred to the reaction kettle system according to the weight and the speed of the added materials, leakage can be well prevented, and safety interlocking is achieved.
The method has the advantages of convenient operation, high automation and the like, is easy to be applied to the industrial large-scale production with automation, onsite and high efficiency, and can be used as main equipment and a material adding method in the future hazardous field.
Drawings
FIG. 1 is a schematic diagram of a chloroethane charging device of the present utility model;
in the figure, 1, a nitrogen making machine, 2, an axial flow fan, 3, a first pressure gauge, 4, a first pneumatic ball valve, 5, a first one-way valve, 6, a first rear valve, 7, a first pneumatic adjusting valve, 8, a first front valve, 9, a first pressure transmitter, 10, a second pressure gauge, 11, a second one-way valve, 12, a second rear valve, 13, a second pneumatic adjusting valve, 14, a second front valve, 15, a second pressure transmitter, 16, a second pneumatic ball valve, 17, a reaction kettle, 18, a first chloroethane steel cylinder, 18-1, a first air inlet, 18-2, a first air outlet, 19, a first air outlet valve, 20, a first air inlet valve, 21, a second air outlet valve, 22, a second air inlet valve, 23, a first dichloroethane steel cylinder, 23-1, a second air inlet, 23-2, a second air outlet, 24, a first protection valve, 25, a second protection valve, 26, a combustible alarm, 27, a second weighing module, 28, a DCS controller and a first weighing module.
Detailed Description
In order to make the technical problems, technical solutions and advantages to be solved by the present utility model more apparent, the following detailed description will be given with reference to the accompanying drawings and specific embodiments, which are intended to illustrate the present utility model, but should not be construed as limiting the present utility model.
Technical solutions in the embodiments of the present application will be clearly described with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application are within the scope of the protection of the present application.
The utility model relates to a chloroethane feeding device which is carried out according to the following steps:
(1) Placing a first chloroethane steel cylinder on a first weighing module through a monorail electric hoist crane, setting a charging speed and a charging weight, setting a nitrogen pressure, and starting to add chloroethane into the reaction kettle;
(2) The DCS controller is used for automatically controlling the nitrogen pressure and starting the axial flow fan; the nitrogen pressurization consists of a first pressure transmitter, a first pneumatic regulating valve, a first pressure gauge and a nitrogen pipeline/charging pipeline, and the pneumatic regulating valve is used for controlling the internal and external pressure of the chloroethane steel cylinder to regulate the height to which the chloroethane can be pressurized; the nitrogen first pressure transmitter and the first pneumatic regulating valve are used for controlling the pressure in the chloroethane steel cylinder to be stable in an interlocking manner, and the pressure stabilizing is completed through a DCS controller;
(3) The adding amount of the chloroethane is controlled by interlocking of the weighing module and the second pneumatic regulating valve, and the second pneumatic regulating valve is closed after the accumulated weight reaches; the sequential weight of the added chloroethane is controlled by the first weighing module and the second pneumatic adjusting valve in an interlocking way, and the actual value of the instantaneous weight of the second pneumatic adjusting valve is adjusted through the DCS controller after the sequential weight is set.
Example 1
The structure of the chloroethane feeding device is shown in fig. 1, and the chloroethane feeding device comprises a nitrogen making machine 1, a first pressure gauge 3, a first pneumatic ball valve 4, a first one-way valve 5, a first pneumatic regulating valve 7, a first pressure transmitter 9, a first chloroethane steel cylinder 18, a second pressure gauge 10, a second one-way valve 11, a second pneumatic regulating valve 13, a second pressure transmitter 15, a second pneumatic ball valve 16 and a reaction kettle 17;
the first chloroethane steel cylinder 18 is provided with a first air inlet 18-1 and a first air outlet 18-2, and the first air inlet 18-1 is communicated with a nitrogen pipeline through a first air inlet valve 20; the nitrogen pipeline is communicated with the air outlet of the nitrogen making machine 1; a first pressure gauge 3, a first pneumatic ball valve 4, a first one-way valve 5, a first pneumatic regulating valve 7 and a first pressure transmitter 9 are sequentially arranged on the nitrogen pipeline from the nitrogen generator 1 to the first air inlet 18-1; the first air outlet 18-2 is communicated with a feeding pipeline through a first air outlet valve 19; the feeding pipeline is communicated with a feeding port of the reaction kettle 17; the feeding pipeline is provided with a second pressure gauge 10, a second one-way valve 11, a second pneumatic regulating valve 13, a second pressure transmitter 15 and a second pneumatic ball valve 16 in sequence from the first air outlet 18-2 to the reaction kettle 17;
the front and the rear of the first pneumatic control valve 7 are respectively provided with a first front valve 8 and a first rear valve 6, and the first front valve 8 is positioned between the first pneumatic control valve 7 and the first pressure transmitter 9; the first rear valve 6 is positioned between the first pneumatic adjusting valve 7 and the first one-way valve 5; the nitrogen pipeline is provided with a safe nitrogen conveying pipeline, an inlet of the safe nitrogen conveying pipeline is connected to the nitrogen pipeline between the first one-way valve 5 and the first rear valve 6, an outlet of the safe nitrogen conveying pipeline is connected to the nitrogen pipeline between the first pressure transmitter 9 and the first front valve 8, and the safe nitrogen conveying pipeline is also provided with a first protection valve 24;
the second pneumatic control valve 13 is provided with a second front valve 14 and a second rear valve 12 respectively in front and behind, and the second front valve 14 is positioned between the second pneumatic control valve 13 and the second pressure transmitter 15; the second rear valve 12 is positioned between the second pneumatic control valve 13 and the second one-way valve 11; the feeding pipeline is provided with a safe conveying feeding pipeline, an inlet of the safe conveying feeding pipeline is connected to the feeding pipeline between the second one-way valve 11 and the second rear valve 12, an outlet of the safe conveying feeding pipeline is connected to the feeding pipeline between the second pressure transmitter 15 and the second front valve 14, and the safe conveying feeding pipeline is also provided with a second protection valve 25;
the second dichloroethane steel cylinder 23 is provided with a second air inlet 23-1 and a second air outlet 23-2, and the second air inlet 23-1 is communicated with a nitrogen pipeline through a second air inlet valve 22; the second air outlet 23-2 is communicated with a feeding pipeline through a second air outlet valve 21;
the first chloroethane steel cylinder 18 is positioned on a first weighing module 29, and the first weighing module 29 is communicated with the DCS controller 28; meanwhile, the DCS controller 28 is also communicated with the first pneumatic ball valve 4, the first pneumatic regulating valve 7, the first pressure transmitter 9, the second pneumatic regulating valve 13, the second pressure transmitter 15 and the second pneumatic ball valve 16; the DCS controller 28 is also connected with the axial flow fan 2; interlock control is implemented by DCS controller 28;
a first pressure gauge 3 is arranged on a nitrogen pipeline between the nitrogen generator 1 and the first pneumatic ball valve 4; a second pressure gauge 10 is arranged on a feeding pipeline between the second one-way valve 11 and the first air outlet valve 19;
the second dichloroethane steel cylinder 23 is positioned on a second weighing module 27, and the second weighing module 27 is communicated with a DCS controller 28;
the DCS controller 28 is also connected with a flammable alarm 26;
the ethyl chloride feeding device is used according to the following steps:
(1) Placing a first chloroethane steel cylinder on a first weighing module through a monorail electric hoist crane, setting a charging speed and a charging weight, setting a nitrogen pressure, and starting to add chloroethane into the reaction kettle;
(2) The DCS controller is used for automatically controlling the nitrogen pressure and starting the axial flow fan; the nitrogen pressurization consists of a first pressure transmitter, a first pneumatic regulating valve, a first pressure gauge and a nitrogen pipeline/charging pipeline, and the pneumatic regulating valve is used for controlling the internal and external pressure of the chloroethane steel cylinder to regulate the height to which the chloroethane can be pressurized; the nitrogen first pressure transmitter and the first pneumatic regulating valve are used for controlling the pressure in the chloroethane steel cylinder to be stable in an interlocking manner, and the pressure stabilizing is completed through a DCS controller;
(3) The adding amount of the chloroethane is controlled by interlocking of the weighing module and the second pneumatic regulating valve, and the second pneumatic regulating valve is closed after the accumulated weight reaches; the sequential weight of the added chloroethane is controlled by the first weighing module and the second pneumatic regulating valve in an interlocking way, and after the sequential weight is set, the actual value of the instantaneous weight of the second pneumatic regulating valve is regulated by the DCS controller;
the second ethylene dichloride steel cylinder is used for switching the work of the first ethylene dichloride steel cylinder; to prevent the reverse series of the chloroethane into the nitrogen system, the first check valve is used for completing the process; in order to prevent the material chloroethane of the reaction system from reversely stringing into the chloroethane steel cylinder, the reaction is completed by a second one-way valve; the safety linkage when the chloroethane leaks is completed by a combustible gas alarm, an axial flow fan and a pneumatic ball valve, and is controlled by a DCS;
introducing nitrogen into the chloroethane steel cylinder, and controlling the pressure in the chloroethane steel cylinder by utilizing the first pressure transmitter and the first pneumatic regulating valve in an interlocking way, so that the chloroethane in the nitrogen making machine can reach the inside of the reaction kettle, wherein the set value is 0.3MPa;
the chloroethane is conveyed into the reaction kettle through pressure, during the period, the DCS detects the weight change of the material through the data change of the weighing module, and then the rate is controlled through the interlocking of the second pneumatic regulating valve;
the material is safely cut off when the material is leaked through the interlocking of the combustible gas alarm and the pneumatic ball valve, and the leaked material is blown away through the interlocking of the combustible gas alarm and the axial flow fan;
while the foregoing is directed to the preferred embodiments of the present utility model, it will be appreciated by those skilled in the art that various modifications and adaptations can be made without departing from the principles of the present utility model, and such modifications and adaptations are intended to be comprehended within the scope of the present utility model.
Claims (9)
1. The utility model provides a chloroethane feeding device which characterized in that: the nitrogen generator comprises a nitrogen generator, a first pressure gauge, a first pneumatic ball valve, a first one-way valve, a first pneumatic regulating valve, a first pressure transmitter, a first chloroethane steel cylinder, a second dichloroethane steel cylinder, a second pressure gauge, a second one-way valve, a second pneumatic regulating valve, a second pressure transmitter, a second pneumatic ball valve and a reaction kettle.
2. A chloroethane charging apparatus as claimed in claim 1 wherein: the first chloroethane steel cylinder is provided with a first air inlet and a first air outlet, and the first air inlet is communicated with a nitrogen pipeline through a first air inlet valve; the nitrogen pipeline is communicated with an air outlet of the nitrogen making machine; a first pressure gauge, a first pneumatic ball valve, a first one-way valve, a first pneumatic regulating valve and a first pressure transmitter are sequentially arranged on the nitrogen pipeline from the nitrogen generator to the first air inlet; the first air outlet is communicated with a feeding pipeline through a first air outlet valve; the feeding pipeline is communicated with a feeding port of the reaction kettle; the feeding pipeline is sequentially provided with a second pressure gauge, a second one-way valve, a second pneumatic regulating valve, a second pressure transmitter and a second pneumatic ball valve from the first air outlet to the reaction kettle.
3. A chloroethane charging apparatus as claimed in claim 1 wherein: a first front valve and a first rear valve are respectively arranged in front of and behind the first pneumatic adjusting valve, and the first front valve is positioned between the first pneumatic adjusting valve and the first pressure transmitter; the first rear valve is positioned between the first pneumatic adjusting valve and the first one-way valve; be equipped with the safety on the nitrogen pipe line and carry the nitrogen line, the import of safety carries the nitrogen line is connected to on the nitrogen line between first check valve and the first back valve, and the export of safety carries the nitrogen line is connected to on the nitrogen line between first pressure transmitter and the first preceding valve, still is equipped with first protection valve on the safety carries the nitrogen pipe line.
4. A chloroethane charging apparatus as claimed in claim 1 wherein: a second front valve and a second rear valve are respectively arranged in front of and behind the second pneumatic regulating valve, and the second front valve is positioned between the second pneumatic regulating valve and the second pressure transmitter; the second rear valve is positioned between the second pneumatic adjusting valve and the first one-way valve; the feeding pipeline is provided with a safe conveying feeding pipeline, an inlet of the safe conveying feeding pipeline is connected to the feeding pipeline between the second one-way valve and the first back valve, an outlet of the safe conveying feeding pipeline is connected to the feeding pipeline between the second pressure transmitter and the first front valve, and the safe conveying feeding pipeline is also provided with a second protection valve.
5. A chloroethane charging apparatus as claimed in claim 1 wherein: the second dichloroethane steel cylinder is provided with a second air inlet and a second air outlet, and the second air inlet is communicated with a nitrogen pipeline through a second air inlet valve; the second air outlet is communicated with the feeding pipeline through a second air outlet valve.
6. A chloroethane charging apparatus as claimed in claim 1 wherein: the first chloroethane steel cylinder is positioned on the first weighing module, and the first weighing module is communicated with the DCS controller; meanwhile, the DCS controller is also communicated with the first pneumatic ball valve, the first pneumatic regulating valve, the first pressure transmitter, the second pneumatic regulating valve, the second pressure transmitter and the second pneumatic ball valve; the DCS controller is also connected with an axial flow fan; interlock control is implemented by the DCS controller.
7. A chloroethane charging apparatus as claimed in claim 1 wherein: a first pressure gauge is arranged on a nitrogen pipeline between the nitrogen generator and the first pneumatic ball valve; a second pressure gauge is arranged on the feeding pipeline between the second one-way valve and the first air outlet valve.
8. A chloroethane charging apparatus as claimed in claim 1 wherein: the second dichloroethane steel cylinder is positioned on the second weighing module, and the second weighing module is communicated with the DCS controller.
9. The ethyl chloride feeding apparatus of claim 8, wherein: the DCS controller is also connected with a combustible alarm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223521426.0U CN219291353U (en) | 2022-12-28 | 2022-12-28 | Chloroethane feeding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223521426.0U CN219291353U (en) | 2022-12-28 | 2022-12-28 | Chloroethane feeding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219291353U true CN219291353U (en) | 2023-07-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223521426.0U Active CN219291353U (en) | 2022-12-28 | 2022-12-28 | Chloroethane feeding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219291353U (en) |
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2022
- 2022-12-28 CN CN202223521426.0U patent/CN219291353U/en active Active
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