CN217549037U - Control system for continuous recovery of acetone rectifying tower - Google Patents
Control system for continuous recovery of acetone rectifying tower Download PDFInfo
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- CN217549037U CN217549037U CN202220236003.5U CN202220236003U CN217549037U CN 217549037 U CN217549037 U CN 217549037U CN 202220236003 U CN202220236003 U CN 202220236003U CN 217549037 U CN217549037 U CN 217549037U
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Abstract
The utility model discloses a control system that acetone rectifying column retrieved in succession, including the equipment cabinet that has master control set and successively loop through pipe connection's material feeding unit, rectifying column cauldron, rectifying column, condenser, reflux tank and cooler. Wherein, set pay-off pump, cauldron liquid discharge pump and backwash pump respectively on material feeding unit, rectifying column cauldron and the backward flow jar, main control set is connected with pay-off pump, cauldron liquid discharge pump and backwash pump electricity respectively. The utility model discloses use master control set on the equipment cabinet as the control main part, control the material flow of these several equipment that are in important node of in-process material feeding unit, rectifying column and backflow tank that acetone was retrieved to replace artifical frequent operation to these nodes, thereby save the cost of labor, still have higher reliability when improving the efficiency of retrieving.
Description
Technical Field
The utility model relates to an acetone recovery technical field, in particular to control system that acetone rectifying column retrieved in succession.
Background
Acetone is a colorless transparent liquid, has slight fragrance, and plays an important role in some chemical production. However, the acetone recovery in the existing acetone rectification tower adopts intermittent operation, and the process requirements are met by manual operation, so that the labor intensity is high, the production efficiency is low, the control precision and the stability of the acetone rectification tower cannot meet the higher requirements, and further the efficiency of equipment and the reliability of products are poor.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve is: the control system for continuous recovery of the acetone rectifying tower is provided, the labor cost for acetone recovery is saved, and the recovery efficiency and reliability are improved.
In order to solve the technical problem, the utility model discloses a technical scheme be:
a control system for continuous recovery of an acetone rectifying tower comprises an equipment cabinet with a main control device, and a feeding device, a rectifying tower kettle, the rectifying tower, a condenser, a reflux tank and a cooler which are sequentially connected through pipelines;
the feeding device is characterized in that the rectifying tower kettle and the reflux tank are respectively provided with a feeding pump, a kettle liquid discharging pump and a reflux pump, and the main control device is respectively connected with the feeding pump, the kettle liquid discharging pump and the reflux pump.
Furthermore, a flow transmitter and a first flow regulating valve are arranged on a feeding channel of the feeding device, and the flow transmitter and the first flow regulating valve are respectively electrically connected with the main control device.
Further, be provided with first liquid level changer and first liquid level governing valve in the backward flow jar, first liquid level changer with first liquid level governing valve respectively with master control device electricity is connected.
Further, a first temperature transmitter and a steam regulating valve are arranged in the rectifying tower kettle, and the first temperature transmitter and the steam regulating valve are respectively electrically connected with the main control device.
Furthermore, a second temperature transmitter and a second flow regulating valve are arranged in the top of the rectifying tower, and the second temperature transmitter and the second flow regulating valve are respectively electrically connected with the main control device.
Further, a second liquid level transmitter and a second liquid level adjusting valve are arranged in the rectifying tower kettle, and the second liquid level transmitter and the second liquid level adjusting valve are respectively electrically connected with the main control device.
The device further comprises a power supply, an emergency stop switch and three switch control circuits for correspondingly turning on or off the feeding pump, the kettle liquid discharging pump and the reflux pump one by one;
the switch control circuit comprises a change-over switch, a first normally closed switch, a second normally closed switch, a first normally open switch, a second normally open switch, a relay, an indicator light and a thermal relay normally closed switch;
one end of the emergency stop switch is connected with a first end of the power supply, the other end of the emergency stop switch is connected with an automatic end of the change-over switch, a manual end of the emergency stop switch is connected with one end of the first normally closed switch, the other end of the first normally closed switch is connected with one end of the second normally closed switch, the other end of the second normally closed switch is simultaneously connected with one end of the first normally open switch, one end of the second normally open switch and one end of the relay normally open switch, the other end of the first normally open switch is simultaneously connected with the other end of the second normally open switch, the other end of the relay normally open switch, one end of the main control device, one end of the relay and one end of the indicator light, the other end of the relay is connected with one end of the thermal relay normally closed switch, and the other end of the indicator light and the second end of the power supply;
the emergency stop switch, the change-over switch, the first normally closed switch, the first normally open switch and the indicator lamp are all located on the outer surface of the equipment cabinet.
Further, the equipment cabinet also comprises a wiring duct, and a plurality of wiring ducts are arranged in the equipment cabinet.
Further, still be provided with double-colored alarm lamp on the surface of equipment cabinet, double-colored alarm lamp with.
Further, still include the touch-control display screen, the touch-control display screen set up in on the surface of equipment cabinet and with master control set electricity is connected.
The beneficial effects of the utility model reside in that: the control system for continuous recovery of the acetone rectifying tower is characterized in that a main control device on an equipment cabinet is used as a control main body, and the material flow of the equipment which is located at important nodes, namely a feeding device, the rectifying tower and a reflux tank, in the acetone recovery process is controlled to replace manual work for frequently operating the nodes, so that the labor cost is saved, the recovery efficiency is improved, and meanwhile, the reliability is higher.
Drawings
Fig. 1 is a schematic view of a process for recovering acetone in a control system for continuous recovery of an acetone rectification column according to an embodiment of the present invention;
fig. 2 is a front view of an equipment cabinet of a control system for continuous recovery of an acetone rectification tower according to an embodiment of the present invention;
FIG. 3 is an internal structure diagram of an equipment cabinet of a control system for continuous recovery of an acetone rectification tower according to an embodiment of the present invention;
fig. 4 is a circuit connection diagram of a main control device of a control system for continuous recovery of an acetone rectification column according to an embodiment of the present invention;
fig. 5 is a circuit connection diagram of a feed pump and the like and a main control device of a control system for continuous recovery of an acetone rectification tower in an embodiment of the present invention;
fig. 6 is a circuit connection diagram of a switch control circuit of a control system for continuous recovery of an acetone rectification column according to an embodiment of the present invention;
fig. 7 is a system block diagram of a control system for continuous recovery of an acetone rectification column according to an embodiment of the present invention.
Description of reference numerals:
1. an equipment cabinet; 2. a feeding device; 3. a rectifying tower kettle; 4. a rectifying tower; 5. a condenser; 6. a reflux tank; 7. a cooler; 8. a wiring duct; 9. a flow transmitter; 10. a first flow regulating valve; 11. a first level transmitter; 12. a first liquid level regulating valve; 13. a first temperature transmitter; 14. a steam regulating valve; 15. a second temperature transmitter; 16. a second flow regulating valve; 17. a second liquid level transmitter; 18. a second level adjustment valve;
LED1, double-color alarm lamp; LED2, indicator light;
HMI, touch control display screen;
j1, a relay;
k1, an emergency stop switch; k2, a change-over switch; k3, a first normally closed switch; k4, a second normally closed switch; k5, a first normally open switch; k6, a second normally open switch; k7, a normally open switch of the relay; k8, a normally closed switch of the thermal relay;
p1, a feeding pump; p2, a kettle liquid discharging pump; p3, a reflux pump;
u1, a master control device;
VCC and a power supply.
Detailed Description
In order to explain the technical content, the objects and the effects of the present invention in detail, the following description is made with reference to the accompanying drawings in combination with the embodiments.
Referring to fig. 1 to 7, a control system for continuous recovery of an acetone rectification tower comprises an equipment cabinet 1 with a main control device U1, and a feeding device 2, a rectification tower kettle 3, a rectification tower 4, a condenser 5, a reflux tank 6 and a cooler 7 which are sequentially connected through pipelines;
the feeding device 2, the rectifying tower kettle 3 and the reflux tank 6 are respectively provided with a feeding pump P1, a kettle liquid discharging pump P2 and a reflux pump P3, and the main control device U1 is respectively connected with the feeding pump P1, the kettle liquid discharging pump P2 and the reflux pump P3.
From the above description, the beneficial effects of the present invention are: the main control device U1 on the equipment cabinet 1 is used as a control main body to control the material flow of the feeding device 2, the rectifying tower and the reflux tank 6 which are positioned at important nodes in the acetone recovery process so as to replace the manual frequent operation of the nodes, thereby saving the labor cost, improving the recovery efficiency and having higher reliability.
Further, a flow transmitter 9 and a first flow regulating valve 10 are arranged on a feeding channel of the feeding device 2, and the flow transmitter 9 and the first flow regulating valve 10 are respectively electrically connected with the main control device U1.
As can be seen from the above description, the flow transmitter 9 and the first flow regulating valve 10 are provided on the feeding device 2, and the first flow regulating valve 10 is regulated by collecting the flow transmitter 9, so that the flow of the feeding device 2 is stabilized in a required range in real time.
Further, be provided with first liquid level changer 11 and first liquid level governing valve 12 in the return tank 6, first liquid level changer 11 with first liquid level governing valve 12 respectively with master control device U1 electricity is connected.
It can be known from the above description that set up first liquid level transmitter 11 and first liquid level control valve 12 in return tank 6, correspond through the liquid level data who acquires first liquid level transmitter 11 in real time and adjust first liquid level control valve 12 to make return tank 6's liquid level keep in stable within range, save the time of production regulation and control and very reliable.
Further, a first temperature transmitter 13 and a steam regulating valve 14 are arranged in the rectifying tower kettle 3, and the first temperature transmitter 13 and the steam regulating valve 14 are respectively electrically connected with the main control device U1.
As can be seen from the above description, the first temperature transmitter 13 and the steam control valve 14 are disposed in the rectifying tower 3, and the opening degree of the steam control valve 14 is adjusted by using the temperature data of the first temperature transmitter 13, so that the rectifying tower 3 is maintained in a stable temperature range, and a good reaction effect is ensured.
Further, a second temperature transmitter 15 and a second flow regulating valve 16 are arranged in the top of the rectifying tower 4, and the second temperature transmitter 15 and the second flow regulating valve 16 are respectively electrically connected with the main control device U1.
As can be seen from the above description, the second temperature transmitter 15 and the second flow regulating valve 16 are disposed in the top of the rectifying tower 4, and the second flow regulating valve 16 of the rectifying tower 4 is regulated by using the temperature data of the second temperature transmitter 15, so as to realize the automatic control of the top reflux temperature.
Further, a second liquid level transmitter 17 and a second liquid level adjusting valve 18 are arranged in the rectifying tower 3, and the second liquid level transmitter 17 and the second liquid level adjusting valve 18 are respectively electrically connected with the main control device U1.
As can be seen from the above description, the second liquid level transmitter 17 and the second liquid level adjusting valve 18 are arranged in the rectifying tower 3, and the opening of the second liquid level adjusting valve 18 is adjusted by using the liquid level data of the second liquid level transmitter 17, so as to realize automatic control of the liquid level extracted from the tower.
Further, the device also comprises a power supply VCC, an emergency stop switch K1 and three switch control circuits which are used for correspondingly turning on or off the feeding pump P1, the kettle liquid discharging pump P2 and the reflux pump P3 one by one;
the switch control circuit comprises a change-over switch K2, a first normally closed switch K3, a second normally closed switch K4, a first normally open switch K5, a second normally open switch K6, a relay normally open switch K7, a relay J1, an indicator light LED2 and a thermal relay normally closed switch K8;
one end of the emergency stop switch K1 is connected with a first end of the power supply VCC, the other end of the emergency stop switch K1 is connected with an automatic end of the transfer switch K2, a manual end of the emergency stop switch K1 is connected with one end of the first normally closed switch K3, the other end of the first normally closed switch K3 is connected with one end of the second normally closed switch K4, the other end of the second normally closed switch K4 is simultaneously connected with one end of the first normally open switch K5, one end of the second normally open switch K6 and one end of the relay normally open switch K7, the other end of the first normally open switch K5 is simultaneously connected with the other end of the second normally open switch K6, the other end of the relay normally open switch K7, the main control device U1, one end of the relay J1 and one end of the indicator light LED2, the other end of the relay J1 is connected with one end of the thermal relay normally closed switch K8, and the other end of the thermal relay K8 is simultaneously connected with the other end of the indicator light LED2 and a second end of the power supply VCC;
the emergency stop switch K1, the change-over switch K2, the first normally closed switch K3, the first normally open switch K5 and the indicator light LED2 are all located on the outer surface of the equipment cabinet 1.
It can be known from the above description that adding scram switch K1 and on-off control circuit in the circuit, not only can carrying out the scram control to all equipment, can also start alone and close certain equipment wherein for operating personnel just can control the operation of system on equipment cabinet 1, convenient to use, it is efficient.
Further, the equipment cabinet 1 further comprises a wiring duct 8, and a plurality of wiring ducts 8 are arranged in the equipment cabinet 1.
As can be seen from the above description, the multiple wiring slots 8 are arranged in the equipment cabinet 1, which facilitates the wiring management of the equipment and the daily use and maintenance.
Furthermore, a double-color alarm lamp LED1 is further arranged on the outer surface of the equipment cabinet 1, and the double-color alarm lamp LED1 is matched with the double-color alarm lamp LED 1.
According to the above description, the alarm feedback can be timely carried out on some abnormal operation occurring in the acetone reaction production process through the double-color alarm lamp LED1, so that operators can be informed at the first time, real-time and accurate monitoring of a machine is realized, manpower is saved, and the smooth operation of the production process is guaranteed.
Further, the intelligent cabinet also comprises a touch display screen HMI, wherein the touch display screen HMI is arranged on the outer surface of the equipment cabinet 1 and is electrically connected with the main control device U1.
From the above description, the display screen is arranged on the equipment cabinet 1, and the collected data and the operation data of the system can be fed back in real time, so that an operator can control the production process conveniently.
The utility model discloses a control system that acetone rectifying column retrieved in succession is applicable to the application scene of acetone production, explains through specific embodiment below:
referring to fig. 1, fig. 2, fig. 3, fig. 4, fig. 5 and fig. 7, a first embodiment of the present invention is:
a control system for continuous recovery of an acetone rectifying tower is shown in figures 1, 4 and 5 and comprises an equipment cabinet 1 with a main control device U1, a wiring duct 8 and a two-color alarm lamp LED1, and a feeding device 2, a rectifying tower kettle 3, a rectifying tower 4, a condenser 5, a reflux tank 6 and a cooler 7 which are sequentially connected through pipelines. Feeding pump P1, kettle liquid discharge pump P2 and reflux pump P3 have been set respectively on material feeding unit 2, the rectifying column cauldron 3 and the reflux drum 6, and master control set U1 is connected with feeding pump P1, kettle liquid discharge pump P2 and reflux pump P3 electricity respectively.
As shown in fig. 1 and fig. 7, the present embodiment has the following five automatic control structures:
firstly, the feeding amount of the feeding device 2 is automatically controlled by adopting flow; a flow transmitter 9 and a first flow regulating valve 10 are arranged on a feeding channel of the feeding device 2, and the flow transmitter 9 and the first flow regulating valve 10 are respectively and electrically connected with the main control device U1.
Secondly, the liquid level from the rectifying tower 4 to the reflux tank 6 is automatically controlled; a first liquid level transmitter 11 and a first liquid level regulating valve 12 are arranged in the liquid level reflux tank 6, and the first liquid level transmitter 11 and the first liquid level regulating valve 12 are electrically connected with a main control device U1 respectively.
Thirdly, controlling the steam quantity of the rectifying tower kettle 3 by adopting temperature; a first temperature transmitter 13 and a steam regulating valve 14 are arranged in the rectifying tower kettle 3, and the first temperature transmitter 13 and the steam regulating valve 14 are respectively and electrically connected with the main control device U1.
Fourthly, the reflux quantity at the top of the rectifying tower 4 is automatically controlled by temperature, a second temperature transmitter 15 and a second flow regulating valve 16 are arranged in the rectifying tower 4, and the second temperature transmitter 15 and the second flow regulating valve 16 are respectively and electrically connected with a main control device U1.
Fifthly, automatically controlling the extraction amount of the rectifying tower kettle 3 by using the liquid level; a second liquid level transmitter 17 and a second liquid level regulating valve 18 are arranged in the rectifying tower kettle 3, and the second liquid level transmitter 17 and the second liquid level regulating valve 18 are respectively and electrically connected with the main control device U1.
In this embodiment, in the operation process of acetone rectifying column, control system regulates and control the working data of each node in real time through five automatic structures as above for each node of production process is assisted by equipment cabinet 1 and is controlled, saves the cost of labor, still is enough reliable.
In this embodiment, as shown in fig. 3, a plurality of wiring ducts 8 are disposed in the interior of the equipment cabinet 1, so that the wiring in the equipment cabinet 1 is managed in a standardized manner, and is convenient for maintenance. Moreover, still be provided with double-colored alarm lamp LED1 and display screen on the surface of equipment cabinet 1, double-colored alarm lamp LED1 and display screen all are connected with master control set U1 electricity.
Referring to fig. 2 and fig. 6, a second embodiment of the present invention is:
on the basis of the first embodiment, as shown in fig. 6, the control system for continuous recovery of the acetone rectifying tower further comprises a power supply VCC, an emergency stop switch K1 and three switch control circuits for one-to-one corresponding opening or closing of the feeding pump P1, the kettle liquid discharging pump P2 and the reflux pump P3. Switch control circuit includes change over switch K2, first normally closed switch K3, second normally closed switch K4, first normally opened switch K5, the second normally opened switch K6, relay normally opened switch K7, relay J1, pilot lamp LED2 and thermorelay normally closed switch K8. Wherein, scram switch K1's one end links to each other with the first end of power supply VCC, scram switch K1's the other end links to each other with change over switch K2's automatic end, scram switch K1's manual end links to each other with first normally closed switch K3's one end, first normally closed switch K3's the other end links to each other with second normally closed switch K4's one end, second normally closed switch K4's the other end simultaneously with first normally open switch K5's one end, second normally open switch K6's one end and relay normally open switch K7's one end link to each other, first normally open switch K5's the other end simultaneously with second normally open switch K6's the other end, relay normally open switch K7's the other end, master control unit U1, relay J1's one end and pilot lamp LED 2's one end link to each other, relay J1's the other end links to each other with thermal relay normally closed switch K8's one end, thermal relay normally closed switch K8's the other end simultaneously links to each other with the other end of pilot lamp LED2 and the second end of power supply VCC.
And, as shown in fig. 2, the scram switch K1, the change-over switch K2, the first normally closed switch K3, the first normally open switch K5 and the indicator light LED2 are all located on the outer surface of the equipment cabinet 1.
In this embodiment, as shown in fig. 6, the feeding pump P1, the kettle liquid discharging pump P2 and the reflux pump P3 are all provided with two control modes: one is to utilize the output signal of the main control device U1 to carry out automatic control; the other is a manual control by means of an operator turning the change-over switch K2. And an additional branch circuit is arranged in the switch control circuit, so that line switching is performed when the currently used equipment fails, and further, standby equipment is used.
To sum up, the utility model provides a control system that acetone rectifying column retrieved in succession, main control unit on the equipment cabinet has set up the display screen as control main part, double-colored alarm lamp, auxiliary assembly such as emergency stop switch, the in-process material feeding unit who retrieves acetone, the material flow of these several equipment that are in important node of rectifying column and backward flow jar is controlled, and utilize first flow control valve, first liquid level transmitter, first liquid level control valve, collection equipment such as first temperature transmitter and regulation and control device carry out automated control to equipment such as rectifying column, make holistic reaction effect keep within the scope of demand, in order to replace artifical frequent operation to these nodes, thereby save the cost of labor, still have higher reliability when improving the efficiency of retrieving.
The above mentioned is only the embodiment of the present invention, and the patent scope of the present invention is not limited thereby, and all the equivalent transformations made by the contents of the specification and the drawings, or the direct or indirect application in the related technical field, are included in the patent protection scope of the present invention.
Claims (10)
1. A control system for continuous recovery of an acetone rectifying tower is characterized by comprising an equipment cabinet with a main control device, and a feeding device, a rectifying tower kettle, the rectifying tower, a condenser, a reflux tank and a cooler which are sequentially connected through pipelines;
the feeding device, the rectifying tower kettle and the reflux tank are respectively provided with a feeding pump, a kettle liquid discharging pump and a reflux pump, and the main control device is respectively electrically connected with the feeding pump, the kettle liquid discharging pump and the reflux pump.
2. The control system for the continuous recovery of the acetone rectifying tower as claimed in claim 1, wherein a flow transmitter and a first flow regulating valve are arranged on a feeding channel of the feeding device, and the flow transmitter and the first flow regulating valve are respectively and electrically connected with the main control device.
3. The control system for the continuous recovery of the acetone rectifying tower as claimed in claim 1, wherein a first liquid level transmitter and a first liquid level regulating valve are arranged in the reflux tank, and the first liquid level transmitter and the first liquid level regulating valve are respectively and electrically connected with the main control device.
4. The control system for the continuous recovery of the acetone rectifying tower as claimed in claim 1, wherein a first temperature transmitter and a steam regulating valve are arranged in the rectifying tower kettle, and the first temperature transmitter and the steam regulating valve are respectively and electrically connected with the main control device.
5. The acetone rectifying tower continuous recovery control system according to claim 1, wherein a second temperature transmitter and a second flow regulating valve are arranged in the tower top of the rectifying tower, and the second temperature transmitter and the second flow regulating valve are respectively electrically connected with the main control device.
6. The control system for the continuous recovery of the acetone rectifying tower as claimed in claim 1, wherein a second liquid level transmitter and a second liquid level regulating valve are arranged in the rectifying tower kettle, and the second liquid level transmitter and the second liquid level regulating valve are respectively and electrically connected with the main control device.
7. The control system for the continuous recovery of the acetone rectifying tower according to claim 1, further comprising a power supply, an emergency stop switch and three switch control circuits for correspondingly turning on or off the feed pump, the kettle liquid discharge pump and the reflux pump one by one;
the switch control circuit comprises a change-over switch, a first normally closed switch, a second normally closed switch, a first normally open switch, a second normally open switch, a relay, an indicator light and a thermal relay normally closed switch;
one end of the emergency stop switch is connected with a first end of the power supply, the other end of the emergency stop switch is connected with an automatic end of the change-over switch, a manual end of the emergency stop switch is connected with one end of the first normally closed switch, the other end of the first normally closed switch is connected with one end of the second normally closed switch, the other end of the second normally closed switch is simultaneously connected with one end of the first normally open switch, one end of the second normally open switch and one end of the relay normally open switch, the other end of the first normally open switch is simultaneously connected with the other end of the second normally open switch, the other end of the relay normally open switch, one end of the main control device, one end of the relay and one end of the indicator lamp, the other end of the relay is connected with one end of the thermal relay normally closed switch, and the other end of the thermal relay normally closed switch is simultaneously connected with the other end of the indicator lamp and a second end of the power supply;
the emergency stop switch, the change-over switch, the first normally closed switch, the first normally open switch and the indicator lamp are all located on the outer surface of the equipment cabinet.
8. The control system for the continuous recovery of the acetone rectification tower as claimed in claim 1, further comprising a wiring duct, wherein a plurality of wiring ducts are arranged in the inner part of the equipment cabinet.
9. The control system for the continuous recovery of the acetone rectifying tower as claimed in claim 1, wherein a bicolor alarm lamp is further arranged on the outer surface of the equipment cabinet.
10. The control system for the continuous recovery of the acetone rectification tower according to claim 1, further comprising a touch display screen, wherein the touch display screen is arranged on the outer surface of the equipment cabinet and electrically connected with the main control device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220236003.5U CN217549037U (en) | 2022-01-28 | 2022-01-28 | Control system for continuous recovery of acetone rectifying tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220236003.5U CN217549037U (en) | 2022-01-28 | 2022-01-28 | Control system for continuous recovery of acetone rectifying tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217549037U true CN217549037U (en) | 2022-10-11 |
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ID=83469514
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220236003.5U Active CN217549037U (en) | 2022-01-28 | 2022-01-28 | Control system for continuous recovery of acetone rectifying tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217549037U (en) |
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2022
- 2022-01-28 CN CN202220236003.5U patent/CN217549037U/en active Active
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