Pressure control device for rectification

Abstract

A pressure control device for rectification is characterized by comprising a base, a rectifying tower, a pressure detection assembly, a pressure early warning assembly and a pressure release assembly, the rectifying tower is arranged on the top of the base, the base is fixedly connected with the rectifying tower, the pressure detection assembly is arranged on the rectifying tower, the rectifying tower is fixedly connected with the pressure detection assembly, and the pressure early warning assembly is fixedly connected with the pressure release assembly. The pressure detection assembly is provided with a pressure early warning assembly, the pressure detection assembly is electrically connected with the pressure early warning assembly, the rectifying tower is provided with a pressure release assembly, the rectifying tower is fixedly connected with the pressure release assembly, and the pressure detection assembly is electrically connected with the pressure release assembly.

Description

Technical Field

[0001] The utility model relates to the technical field of distillation pressure control, in particular to a pressure control device used for distillation. Background Art

[0002] A distillation tower is a tower-type gas-liquid contact device for distillation. It utilizes the different volatilities of the components in the mixture, that is, the different vapor pressures of the components at the same temperature, to transfer the light components (low boiling substances) in the liquid phase to the gas phase, and the heavy components (high boiling substances) in the gas phase to the liquid phase, thereby achieving the purpose of separation. The distillation tower is also a mass transfer and heat transfer device that is widely used in petrochemical production. When the distillation tower is working, the pressure inside the distillation tower needs to be adjusted in time to keep the pressure inside the distillation tower stable to ensure the normal use of the device. The pressure control devices currently used generally directly use a condensing device to cool the distillation tower and then control the pressure. This method of pressure control has low efficiency and poor control effect. When the pressure of the distillation tower is too high, the pressure control speed is slow and it is easy to cause The distillation tower is damaged. At present, there are patents to solve the above problems. For example, patent number CN211069090U is a pressure control device for an alcohol-based liquid fuel distillation tower that solves the above-mentioned problems. A pressure detection device is fixedly installed on the top of the distillation tower. A pressure quick release device is fixedly installed on the top of the base located on the left side of the distillation tower. The distillation tower is fixedly connected with a first pressure release valve and a second pressure release valve. By setting the pressure detection device and the cooperation of the second pressure release valve and the control device, the pressure gas of the distillation tower is released when the pressure is too high. At the same time, the high-pressure gas is cooled by the condensing plate inside the condensing device to reduce the pressure. When the pressure of the distillation tower is too high and the release speed of the second pressure release valve is slow, the pressure of the distillation tower can be quickly released through the first pressure release valve and the pressure quick release device.

[0003] The above patent still has certain problems when working. When the above device is working, if the pressure detection device in the pressure control device fails, the pressure relief valve and the control device will not work, which will cause serious consequences. Therefore, in order to solve the above-mentioned problems, we propose a pressure control device for distillation. Utility Model Content

[0004] According to the above existing technical problems, the utility model provides a pressure control device for distillation, which is characterized by comprising a base, a distillation tower, a pressure detection component, a pressure warning component, and a pressure release component. A distillation tower is provided on the top of the base, and the base is fixedly connected to the distillation tower. A pressure detection component is provided on the distillation tower, and the distillation tower is fixedly connected to the pressure detection component. A pressure warning component is provided on the pressure detection component, and the pressure detection component is electrically connected to the pressure warning component. A pressure release component is provided on the distillation tower, and the distillation tower is fixedly connected to the pressure release component, and the pressure detection component is electrically connected to the pressure release component.

[0005] The pressure detection assembly consists of a pressure sensor and a pressure detection instrument. The distillation tower is provided with a pressure sensor inside, the distillation tower is fixedly connected to the pressure sensor, the top of the distillation tower is provided with a pressure detection instrument, the distillation tower is fixedly connected to the pressure detection instrument, and the pressure sensor is electrically connected to the detection instrument.

[0006] The pressure warning component is composed of a warning device and a signal sensor. The top of the distillation tower is provided with a warning device, the top of the distillation tower is provided with a signal sensor, the pressure detection instrument is electrically connected to the warning device, and the warning device is electrically connected to the signal sensor.

[0007] The pressure release assembly consists of a pressure release valve and a control unit. A pressure release valve is provided at the bottom of the outer side of the distillation tower. The distillation tower is fixedly connected to the pressure release valve. A control unit is provided on the pressure release valve. The pressure release valve is fixedly connected to the control unit. The control unit is electrically connected to a pressure sensor.

[0008] The beneficial effects of the utility model are as follows: a pressure control device for distillation, which releases the pressurized gas when the pressure of the distillation tower is too high by arranging the pressure detection device, the pressure release valve and the control device, and can quickly release the pressure of the distillation tower through the pressure release valve and the pressure quick release device when the pressure of the distillation tower is too high and the release speed of the pressure release valve is slow. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 This is a schematic diagram of the overall structure of a pressure control device for distillation according to the utility model;

[0010] In the figure: 1. Base, 2. Distillation tower, 3. Pressure sensor, 4. Pressure detection instrument, 5. Early warning device, 6. Signal sensor, 7. Pressure relief valve, 8. Control unit. DETAILED DESCRIPTION

[0011] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0012] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0013] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. In addition, the technical features involved in the different embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other.

[0014] Example 1

[0015] A pressure control device for distillation, characterized in that a distillation tower 2 is provided on the top of a base 1, the base 1 is fixedly connected to the distillation tower 2, a pressure sensor 3 is provided inside the distillation tower 2, the distillation tower 2 is fixedly connected to the pressure sensor 3, a pressure detection instrument 4 is provided on the top of the distillation tower 2, the distillation tower 2 is fixedly connected to the pressure detection instrument 4, the pressure sensor 3 is electrically connected to the pressure detection instrument 4, an early warning device 5 is provided on the top of the distillation tower 2, a signal sensor 6 is provided on the top of the distillation tower 2, the pressure detection instrument 4 is electrically connected to the early warning device 5, the early warning device 5 is electrically connected to the signal sensor 6, a pressure release valve 7 is provided at the bottom of the outer side of the distillation tower 2, the distillation tower 2 is fixedly connected to the pressure release valve 7, a control unit 8 is provided on the pressure release valve 7, the pressure release valve 7 is fixedly connected to the control unit 8, and the control unit 8 is electrically connected to the pressure sensor 3.

[0016] When using the utility model, when regulating the pressure, the pressure detection instrument 4 detects the pressure inside the distillation tower 2. At this time, the control unit 8 controls the pressure release valve 7 to open. At this time, the pressure sensor 3 detects the pressure. When the pressure detection instrument 4 detects that the pressure speed is slow, the pressure release valve 7 opens to release the high-pressure gas into the pressure quick release device for pressure release. When the gas pressure sensor 3 detects that the pressure is high, the discharge valve 7 opens to release the gas for processing.

[0017] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. The various components mentioned in the utility model are common technologies in the existing field. The technicians in this industry should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only to illustrate the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A pressure control device for distillation, characterized in that It includes a base, a distillation tower, a pressure detection component, a pressure warning component, and a pressure release component. A distillation tower is provided on the top of the base, and the base is fixedly connected to the distillation tower. A pressure detection component is provided on the distillation tower, and the distillation tower is fixedly connected to the pressure detection component. A pressure warning component is provided on the pressure detection component, and the pressure detection component is electrically connected to the pressure warning component. A pressure release component is provided on the distillation tower, and the distillation tower is fixedly connected to the pressure release component, and the pressure detection component is electrically connected to the pressure release component.

2. A pressure control device for distillation according to claim 1, characterized in that The pressure detection component consists of a pressure sensor and a pressure detection instrument. The pressure sensor is provided inside the distillation tower, the distillation tower is fixedly connected to the pressure sensor, a pressure detection instrument is provided on the top of the distillation tower, the distillation tower is fixedly connected to the pressure detection instrument, and the pressure sensor is electrically connected to the detection instrument.

3. A pressure control device for distillation according to claim 2, characterized in that The pressure warning component consists of an early warning device and a signal sensor. The top of the distillation tower is provided with an early warning device, the top of the distillation tower is provided with a signal sensor, the pressure detection instrument is electrically connected to the early warning device, and the early warning device is electrically connected to the signal sensor.

4. A pressure control device for distillation according to claim 3, characterized in that The pressure release assembly consists of a pressure release valve and a control unit. A pressure release valve is provided at the bottom of the outer side of the distillation tower. The distillation tower is fixedly connected to the pressure release valve. A control unit is provided on the pressure release valve. The pressure release valve is fixedly connected to the control unit. The control unit is electrically connected to a pressure sensor.

Images