CN216210671U

CN216210671U - Automatic control device for liquid level stabilization of bottom of coarse argon tower

Info

Publication number: CN216210671U
Application number: CN202122129756.4U
Authority: CN
Inventors: 张文静; 胡极苍; 张公涛; 杨光辉; 卢民; 陈爱军
Original assignee: Laiwu Yingde Gas Co ltd
Current assignee: Laiwu Yingde Gas Co ltd
Priority date: 2021-09-06
Filing date: 2021-09-06
Publication date: 2022-04-05
Anticipated expiration: 2031-09-06

Abstract

The utility model discloses an automatic control device for stabilizing liquid level at the bottom of a crude argon secondary tower, which comprises the crude argon secondary tower, a control box and a circulating argon pump, wherein the middle position of one side of the crude argon secondary tower is connected with the circulating argon pump through a liquid supplementing pipe, a liquid inlet pipe is installed at the position of one side of the circulating argon pump, the top end of the circulating argon pump is connected with the control box through a data line B, a data line A is installed at one side of the control box, the tail end of the data line A is connected with the crude argon secondary tower through an inductor, a display screen is installed at the middle position of one side of the front surface of the control box, and a control panel is installed at the position of one side of the display screen on the front surface of the control box. The utility model solves the problems that the prior device mostly adopts manual operation to adjust the operation rotating speed of the circulating argon pump frequency converter, realizes the liquid level control of the crude argon second tower, has high labor intensity, poor liquid level control stability and poor control effect, and improves the control effect of the utility model.

Description

Automatic control device for liquid level stabilization of bottom of coarse argon tower

Technical Field

The utility model relates to the technical field of air separation equipment, in particular to an automatic control device for stabilizing liquid level at the bottom of a crude argon tower.

Background

The air separation equipment is equipment which takes air as a raw material, turns the air into liquid by a compression cycle deep freezing method, and gradually separates and produces inert gases such as oxygen, nitrogen, argon and the like from the liquid air by rectification, and the air separation equipment is a large-scale complex system and mainly comprises the following subsystems: the system comprises a power system, a purification system, a refrigeration system, a heat exchange system, a rectification system, a product conveying system, a liquid storage system, a control system and the like, wherein the liquid level at the bottom of a crude argon tower is required to be controlled in the production process of the air separation plant.

The bottom liquid level control of the existing coarse argon tower adopts the running rotating speed of a manual regulation circulating argon pump frequency converter, the control of the liquid level of the coarse argon tower is realized, the labor intensity is high, the stability of the liquid level control is poor, the control effect is not good, and therefore, the automatic control device for stabilizing the liquid level at the bottom of the coarse argon tower is provided.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an automatic control device for stabilizing the liquid level at the bottom of a crude argon secondary tower, which has the advantage of automatic control and solves the problems of high labor intensity, poor liquid level control stability and poor control effect of the conventional device in which the operating rotating speed of a circulating argon pump frequency converter is adjusted manually to realize the liquid level control of the crude argon secondary tower.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a be used for two tower bottoms liquid level stabilization automatic control devices of thick argon, includes two towers of thick argon, control box and circulation argon pump, wherein two tower one side intermediate position departments of thick argon have the circulation argon pump through fluid infusion union coupling, circulation argon pump one side position department installs the feed liquor pipe, circulation argon pump top is connected with the control box through data line B, data line A is installed to control box one side, data line A is terminal to be connected in two towers of thick argon through the inductor.

Preferably, the display screen is installed to control box front surface one side intermediate position department, the control box front surface is located display screen one side position department and installs the control panel, alarm is installed to control box top intermediate position department.

Preferably, the control box is internally provided with a control chamber through a heat exchanger at a position close to the top end, the control box is internally provided with a heat dissipation chamber through a heat exchanger at a position close to the bottom end, and the top end of the heat exchanger is provided with a heat conducting fin at a position located at the upper end of the control chamber.

Preferably, the controller is installed to the inside bottom intermediate position department of control room, the battery is installed to the inside one side intermediate position department of control room, controller internally mounted has remote control module, data storage module and central processing module.

Preferably, a heat exchange chamber is installed at the middle position inside the heat exchanger, partition plates are installed at the top end position and the bottom end position inside the heat exchange chamber, and the partition plates are arranged in a staggered mode.

Preferably, the circulating pump is installed to heat dissipation chamber bottom one side position department, circulating pump one side intermediate position department is connected in the heat transfer chamber through going out water piping connection, the circulating pump deviates from outlet pipe one side intermediate position department and is connected with the regulator through the connecting pipe, the regulator deviates from connecting pipe one side and is close to top position department and install the cooling tube, the cooling tube is the setting of U type, cooling tube end-to-end connection is in the heat transfer chamber.

Preferably, the spring is installed to inside bottom intermediate position department of regulator, the rubber buffer is installed to inside spring upper end position department that is located of regulator.

Preferably, the heat dissipation chamber is internally provided with a heat sink at a position away from one side of the circulating pump, and the control box is provided with heat dissipation holes at a position corresponding to the heat sink.

Compared with the prior art, the utility model has the following beneficial effects:

1. the automatic control device is provided with the sensor, the control box, the data line A and the data line B, so that the effect of automatically controlling the liquid level at the bottom of the crude argon secondary tower is achieved, the circulating argon pump is arranged at the middle position of one side of the crude argon secondary tower through the liquid supplementing pipe, the liquid inlet pipe is arranged at the position of one side of the circulating argon pump, the control box is arranged at the top end of the circulating argon pump through the data line B, the data line A is arranged at one side of the control box, and the sensor is arranged at the tail end of the data line A and connected to the crude argon secondary tower, so that the problems that the operation rotating speed of the circulating argon pump frequency converter is adjusted manually, the liquid level of the crude argon secondary tower is controlled, the labor intensity is high, the liquid level control stability is poor, and the control effect is poor are solved, and the liquid level control effect of the automatic control device is improved.

2. The heat exchanger, the circulating pump, the radiating pipes and the radiator are arranged, so that the effect of water-cooling heat exchange and cooling of the interior of the control chamber is achieved, the circulating pump is arranged at the position of one side of the bottom end of the radiating chamber, the water outlet pipe is arranged at the middle position of one side of the circulating pump and connected to the heat exchange chamber, the regulator is arranged at the middle position of one side of the circulating pump, which is far away from the water outlet pipe, through the connecting pipe, the radiating pipes are arranged at the position, which is far away from the connecting pipe and close to the top end, of the regulator, the radiating pipes are arranged in a U shape, and the tail ends of the radiating pipes are connected to the heat exchange chamber, so that the problem that the service life of the controller is influenced due to the fact that air cooling and radiating are directly conducted inside the control chamber is high in external air humidity is solved, and the service life of the heat exchanger is prolonged.

3. According to the utility model, the regulator is arranged at the middle position of one side of the circulating pump, which is far away from the water outlet pipe, through the connecting pipe, so that the effect of adjusting the pressure of the cooling water is achieved, the spring is arranged at the middle position of the bottom end in the regulator, and the rubber plug is arranged at the position, which is positioned at the upper end of the spring, in the regulator, so that the problems of poor stability of the pressure of the cooling water and poor heat exchange efficiency of the cooling water are solved, and the heat dissipation effect of the utility model is improved.

Drawings

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is a schematic diagram of a front view of the control box of the present invention;

FIG. 3 is a schematic cross-sectional view of the control box of the present invention;

fig. 4 is an enlarged structural diagram of a in fig. 3.

In the figure: 1. a second crude argon tower; 2. an inductor; 3. a data line A; 4. a data line B; 5. a control box; 6. a liquid supplementing pipe; 7. a circulating argon pump; 8. a liquid inlet pipe; 9. a display screen; 10. an alarm; 11. a control panel; 12. heat dissipation holes; 13. a heat exchanger; 14. a controller; 15. a control room; 16. a heat conductive sheet; 17. a battery; 18. a partition plate; 19. a heat sink; 20. a heat dissipation chamber; 21. a radiating pipe; 22. a connecting pipe; 23. a circulation pump; 24. a water outlet pipe; 25. a heat exchange chamber; 26. a regulator; 27. a rubber plug; 28. a spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to fig. 3, the present invention provides a technical solution for an automatic control device for stabilizing a liquid level at the bottom of a crude argon tower: an automatic control device for stabilizing liquid level at the bottom of a crude argon secondary tower comprises a crude argon secondary tower 1, a control box 5 and a circulating argon pump 7, wherein the middle position of one side of the crude argon secondary tower 1 is connected with the circulating argon pump 7 through a liquid supplementing pipe 6, a liquid inlet pipe 8 is installed at the position of one side of the circulating argon pump 7, the top end of the circulating argon pump 7 is connected with the control box 5 through a data line B4, a data line A3 is installed at one side of the control box 5, the tail end of the data line A3 is connected to the crude argon secondary tower 1 through an inductor 2 so as to induce the internal resistance of the crude argon secondary tower 1, a display screen 9 is installed at the middle position of one side of the front surface of the control box 5, a control board 11 is installed at the position of one side of the display screen 9 at the front surface of the control box 5, an alarm 10 is installed at the middle position of the top end of the control box 5, a controller 14 is installed at the middle position of the bottom end inside the control room 15, a battery 17 is installed at the middle position of one side inside the control room 15, the controller 14 is internally provided with a remote control module, a data storage module and a central processing module, so that the remote control device is convenient to remotely control.

Referring to fig. 3, the present invention provides a technical solution for an automatic control device for stabilizing a liquid level at the bottom of a crude argon tower: an automatic control device for stabilizing liquid level at the bottom of a crude argon secondary tower comprises a crude argon secondary tower 1, a control box 5 and a circulating argon pump 7, wherein the middle position of one side of the crude argon secondary tower 1 is connected with the circulating argon pump 7 through a liquid supplementing pipe 6, a liquid inlet pipe 8 is installed at the position of one side of the circulating argon pump 7, the top end of the circulating argon pump 7 is connected with the control box 5 through a data line B4, a data line A3 is installed at one side of the control box 5, the tail end of the data line A3 is connected to the crude argon secondary tower 1 through an inductor 2, a control chamber 15 is installed at the position close to the top end inside the control box 5 through a heat exchanger 13, a heat dissipation chamber 20 is installed at the position close to the bottom end inside the control box 5 through the heat exchanger 13, a heat conduction sheet 16 is installed at the position at the upper end of the top end of the control chamber 15 at the position inside the heat exchanger 13, a heat exchange chamber 25 is installed at the middle position inside the heat exchange chamber 25, partition plates 18 are installed at the position and the position at the top end and the bottom end inside the heat exchange chamber 25, the partitions 18 are arranged in a staggered manner to increase the heat exchange efficiency of the cooling water.

Referring to fig. 3 and 4, the present invention provides a technical solution for an automatic control device for stabilizing a liquid level at the bottom of a crude argon column: an automatic control device for stabilizing liquid level at the bottom of a crude argon secondary tower comprises a crude argon secondary tower 1, a control box 5 and a circulating argon pump 7, wherein the middle position of one side of the crude argon secondary tower 1 is connected with the circulating argon pump 7 through a liquid supplementing pipe 6, a liquid inlet pipe 8 is arranged at the position of one side of the circulating argon pump 7, the top end of the circulating argon pump 7 is connected with the control box 5 through a data line B4, a data line A3 is arranged at one side of the control box 5, the tail end of the data line A3 is connected with the crude argon secondary tower 1 through an inductor 2, a circulating pump 23 is arranged at the position of one side of the bottom end of a heat dissipation chamber 20, the middle position of one side of the circulating pump 23 is connected with a heat exchange chamber 25 through a water outlet pipe 24, an adjustor 26 is connected at the middle position of one side of the circulating pump 23, which deviates from the connecting pipe 22, a radiating pipe 21 is arranged near the top end, the radiating pipe 21 is in a U-shaped arrangement, and the radiating efficiency of cooling water is increased, the terminal of the radiating pipe 21 is connected to the heat exchange chamber 25, the spring 28 is installed at the middle position of the bottom end inside the regulator 26, the rubber plug 27 is installed at the upper end position of the spring 28 inside the regulator 26 to adjust the conveying pressure of the cooling water, the radiator 19 is installed at the position of one side, deviating from the circulating pump 23, inside the radiating chamber 20, and the control box 5 is provided with the radiating hole 12 at the position corresponding to the radiator 19.

The working principle is as follows: after the device is installed, liquid argon in a liquid inlet pipe 8 is conveyed to a second crude argon tower 1 through a liquid replenishing pipe 6 by a circulating argon pump 7, liquid replenishing is carried out on the second crude argon tower 1, when the sensor 2 senses that the internal resistance of the second crude argon tower 1 reaches a set value, the circulating argon pump 7 is stopped, after a period of time, when the sensor 2 senses that the internal resistance of the second crude argon tower 1 is lower than the set value, the circulating argon pump 7 is controlled and started by a controller 14 in a control box 5, liquid replenishing is carried out on the second crude argon tower 1 until the internal resistance of the second crude argon tower 1 reaches the set value, the circulating argon pump 7 is stopped, in the using process, cooling water is conveyed to a regulator 26 through a connecting pipe 22 by a circulating pump 23, then conveyed to a radiating pipe 21 through the regulator 26, conveyed to a heat exchange chamber 25 through the radiating pipe 21, and heat exchange is carried out on the inside of the control chamber 15 through a partition plate 18 and a heat conducting fin 16 in the heat exchange chamber 25, the cooling water after heat exchange flows back through the water outlet pipe 24, and meanwhile, the radiator 19 is started to blow the radiating pipe 21 in the radiating chamber 20 for radiating, so that the working process of the equipment is completed.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a be used for two tower bottoms liquid level stabilization automatic control devices of crude argon, includes two towers of crude argon (1), control box (5) and circulation argon pump (7), its characterized in that: two towers of crude argon (1) one side intermediate position department is connected with circulation argon pump (7) through fluid infusion pipe (6), circulation argon pump (7) one side position department installs feed liquor pipe (8), circulation argon pump (7) top is connected with control box (5) through data line B (4), data line A (3) are installed to control box (5) one side, data line A (3) are terminal to be connected in two towers of crude argon (1) through inductor (2).

2. The automatic control device for the bottom liquid level stabilization of the crude argon secondary tower is characterized in that: display screen (9) are installed to control box (5) front surface one side intermediate position department, control box (5) front surface is located display screen (9) one side position department and installs control panel (11), alarm (10) are installed to control box (5) top intermediate position department.

3. The automatic control device for the bottom liquid level stabilization of the crude argon secondary tower is characterized in that: the heat dissipation device is characterized in that a control room (15) is installed at a position close to the top end inside the control box (5) through a heat exchanger (13), a heat dissipation room (20) is installed at a position close to the bottom end inside the control box (5) through the heat exchanger (13), and a heat conduction sheet (16) is installed at a position, located at the upper end of the control room (15), at the top end of the heat exchanger (13).

4. The automatic control device for the bottom liquid level stabilization of the crude argon secondary tower is characterized in that: controller (14) are installed to inside bottom intermediate position department of control room (15), battery (17) are installed to inside one side intermediate position department of control room (15), controller (14) internally mounted has remote control module, data storage module and central processing module.

5. The automatic control device for the bottom liquid level stabilization of the crude argon secondary tower is characterized in that: heat exchange chamber (25) are installed to inside intermediate position department of heat exchanger (13), baffle (18) are all installed to inside top position department of heat exchange chamber (25) and bottom position department, baffle (18) set up of staggering each other.

6. The automatic control device for the bottom liquid level stabilization of the crude argon secondary tower is characterized in that: radiating chamber (20) bottom one side position department installs circulating pump (23), circulating pump (23) one side intermediate position department connects in heat transfer chamber (25) through outlet pipe (24), circulating pump (23) deviate from outlet pipe (24) one side intermediate position department and are connected with regulator (26) through connecting pipe (22), regulator (26) deviate from connecting pipe (22) one side and are close to top position department and install cooling tube (21), cooling tube (21) are the setting of U type, cooling tube (21) end-to-end connection in heat transfer chamber (25).

7. The automatic control device for the bottom liquid level stabilization of the crude argon secondary tower is characterized in that: spring (28) are installed to inside bottom intermediate position department of regulator (26), rubber buffer (27) are installed to inside spring (28) upper end position department that is located of regulator (26).

8. The automatic control device for the bottom liquid level stabilization of the crude argon secondary tower is characterized in that: radiator (19) are installed to the inside one side position department that deviates from circulating pump (23) of heat dissipation room (20), control box (5) are located radiator (19) and correspond position department and are equipped with louvre (12).