CN220933400U - A pipeline reactor pressure control device - Google Patents

Abstract

The utility model relates to the technical field of gas pressure regulating devices, and provides a pipeline reactor pressure control device, comprising a first connecting pipe connected to the upper side of the reactor, a second connecting pipe connected to the first connecting pipe, a pressure tank connected to the second connecting pipe, a pressure detection device connected to the pressure tank, and a pressure relief device connected to the pressure tank; the diameter of the pressure tank is greater than the diameter of the second connecting pipe. The pipeline reactor pressure control device of the utility model can not only well regulate the gas pressure of the reaction process, but also reduce the impact caused by the reaction liquid being carried out.

Description

A pipeline reactor pressure control device

Technical Field

The utility model relates to the technical field of air pressure regulating devices, in particular to a pipeline reactor pressure control device.

Background technique

In chemical production, the control of reaction process pressure (gas pressure) is a key link, which not only ensures the normal progress of the reaction, but also ensures the safe and stable operation of production equipment.

For some biochemical reactions that occur in solutions, a large amount of gas may be produced during the reaction. For example, a large amount of nitric oxide gas will be produced during the production of p-nitrobenzoic acid, and the pressure in the production process needs to be controlled at around 2MPa. Therefore, the gas pressure needs to be tested in time and the excess gas needs to be discharged (for continuous reactions, there is a situation where the material is fed and discharged at the same time).

Traditional gas pressure control is generally achieved by setting up a pressure relief pipe or a pressure relief valve. When the gas pressure is detected to be too high, the excess gas is discharged through the pipe or valve. However, when the gas is suddenly generated and discharged, the rapidly ejected gas will take away a part of the reaction liquid, and the acid (or alkali) concentration in the reaction liquid is relatively high. This will not only cause the loss of part of the raw materials, but also cause unnecessary corrosion to other parts of the device.

Utility Model Content

The utility model aims to provide a pipeline reactor pressure control device, which can not only well regulate the gas pressure of the reaction process, but also reduce the influence caused by the reaction liquid being carried out.

The embodiment of the utility model is realized through the following technical scheme: the pipeline reactor pressure control device of the utility model includes a first connecting pipe connected to the upper side of the reactor, a second connecting pipe connected to the first connecting pipe, a pressure tank connected to the second connecting pipe, a pressure detection device connected to the pressure tank, and a pressure relief device connected to the pressure tank; the diameter of the pressure tank is larger than the diameter of the second connecting pipe.

Furthermore, the first connecting pipe and the second connecting pipe are detachably connected.

Furthermore, a cooling cavity is provided at the lower end of the pressure tank, and a cooling device is provided in the cooling cavity.

Furthermore, the cooling device includes a plurality of cooling pipes horizontally arranged in the cooling cavity, and a circulating water device connected to the cooling pipes.

Furthermore, along the vertical cross section, the plurality of cooling pipes are staggeredly distributed.

Furthermore, the cooling pipe is made of metal material.

Furthermore, a cooling jacket is disposed outside the cooling tube, and the cooling jacket is made of plastic material.

Furthermore, a plurality of cooling rings are provided on the outer wall of the cooling jacket, and the plurality of cooling rings are distributed along the axial direction of the cooling jacket; and the cooling rings are made of plastic material.

Furthermore, the circulating water device includes a water inlet pipe connected to the plurality of cooling pipes, a water outlet pipe connected to the plurality of cooling pipes, and a pump body connected to the water inlet pipe and the water outlet pipe.

The technical solution of the embodiment of the utility model has at least the following advantages and beneficial effects: the pipeline reactor pressure control device of the utility model, when in use, the gas generated inside the reactor enters the pressure tank through the first connecting pipe and the second connecting pipe. Since the diameter of the pressure tank is significantly larger than the diameter of the second connecting pipe, when the gas enters the pressure tank through the second connecting pipe, it will expand rapidly and the flow rate will decrease rapidly. At this time, the liquid (in the form of water droplets or mist, etc.) entrained in the gas loses the support of the gas and will gradually fall back. The pressure in the pressure tank is detected in real time through a pressure detection device to adjust the action of the pressure relief device, which can well adjust the pressure in the pressure tank and the reactor in real time, so that a relatively balanced pressure is maintained in the reactor, so that when new raw materials are added and a rapid reaction occurs to produce a large amount of gas, the pressure tank can well discharge the suddenly generated large amount of gas, but will not discharge the reaction liquid, so that it can not affect the concentration of the original reaction liquid, and the whole process can be automatically operated without manual intervention.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

FIG1 is a schematic structural diagram of a pipeline reactor pressure control device provided by an embodiment of the utility model;

FIG. 2 is a schematic structural diagram of a cooling pipe portion provided in an embodiment of the present utility model.

Icons: 10-reactor, 11-first connecting pipe, 12-second connecting pipe, 13-pressure tank, 14-air pressure detection device, 15-pressure relief device, 21-cooling chamber, 22-cooling pipe, 23-cooling jacket, 24-cooling ring, 25-water inlet pipe, 26-water outlet pipe.

Detailed ways

In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Generally, the components of the embodiment of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not require further definition and explanation in the subsequent drawings.

In the description of the present invention, it should be noted that if the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, or is the orientation or position relationship in which the product of the application is usually placed when used. It is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply 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 a limitation on the present invention.

In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" 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 communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Example

The following is further described in conjunction with specific embodiments. As shown in Figures 1-2, the pressure control device of the pipeline reactor 10 of this embodiment includes a first connecting pipe 11 connected to the upper side of the reactor 10, a second connecting pipe 12 connected to the first connecting pipe 11, a pressure tank 13 connected to the second connecting pipe 12, a pressure detection device connected to the pressure tank 13, and a pressure relief device 15 connected to the pressure tank 13; the diameter of the pressure tank 13 is greater than the diameter of the second connecting pipe 12. Specifically, when in use, the gas generated inside the reactor 10 enters the pressure tank 13 through the first connecting pipe 11 and the second connecting pipe 12. Since the diameter of the pressure tank 13 is significantly larger than the diameter of the second connecting pipe 12, when the gas enters the pressure tank 13 through the second connecting pipe 12, it will expand rapidly and the flow rate will decrease rapidly. At this time, the liquid (in the form of water drops or mist, etc.) entrained in the gas loses the support of the gas and will gradually fall back. The pressure in the pressure tank 13 is detected in real time through a pressure detection device to adjust the action of the pressure relief device 15. The pressure in the pressure tank 13 and the reactor 10 can be well adjusted in real time, so that a relatively balanced pressure is maintained in the reactor 10, so that when new raw materials are added and a large amount of gas is generated by a rapid reaction, the pressure tank 13 can well discharge the large amount of gas suddenly generated, but will not discharge the reaction liquid, so that it can not affect the concentration of the original reaction liquid, and the whole process can be automatically operated without manual intervention.

In this embodiment, the first connecting pipe 11 and the second connecting pipe 12 are detachably connected, which makes it easy to disassemble the device for cleaning and maintenance.

A cooling chamber 21 is provided at the lower end of the pressure tank 13 in this embodiment, and a cooling device is provided in the cooling chamber 21. The cooling device includes a plurality of cooling pipes 22 horizontally arranged in the cooling chamber 21, and a circulating water device connected to the cooling pipes 22. Specifically, a certain high temperature is generated during the reaction in the reactor 10, and at this time, the cooling device is used to cool the gas and water vapor, so that the liquid can flow back into the reactor 10 better.

In the cross section along the vertical direction of this embodiment, the plurality of cooling tubes 22 are staggeredly distributed, which can increase the contact area between the hot gas and the cooling tubes 22 and improve the cooling effect.

The cooling tube 22 in this embodiment is made of metal. A cooling jacket 23 is provided on the outer surface of the cooling tube 22, and the cooling jacket 23 is made of plastic. A plurality of cooling rings 24 are provided on the outer wall of the cooling jacket 23, and the plurality of cooling rings 24 are distributed along the length direction of the cooling jacket 23; the cooling rings 24 are made of plastic. Specifically, as shown in FIG2 , there is a large amount of acid in the reactor 10, so if a metal cooling tube 22 is directly used and exposed in the pressure tank 13, the cooling tube 22 will be corroded, so a cooling jacket 23 is provided on the outer surface of the cooling tube 22 to protect the cooling tube 22 well, wherein the cooling jacket 23 can be made of polytetrafluoroethylene. The cooling ring 24 is to increase the contact area between the gas and the cooling device and improve the cooling effect.

The circulating water device in this embodiment includes a water inlet pipe 25 connected to multiple cooling pipes 22, a water outlet pipe 26 connected to multiple cooling pipes 22, and a pump body connected to the water inlet pipe 25 and the water outlet pipe 26.

In summary, the pressure control device of the pipeline reactor 10 of this embodiment, when in use, the gas generated inside the reactor 10 enters the pressure tank 13 through the first connecting pipe 11 and the second connecting pipe 12. Since the diameter of the pressure tank 13 is significantly larger than the diameter of the second connecting pipe 12, when the gas enters the pressure tank 13 from the second connecting pipe 12, it will expand rapidly and the flow rate will decrease rapidly. At this time, the liquid (in the form of water droplets or mist, etc.) entrained in the gas loses the support of the gas and will gradually fall back. The pressure in the pressure tank 13 is detected in real time through a pressure detection device to adjust the action of the pressure relief device 15, which can well adjust the pressure in the pressure tank 13 and the reactor 10 in real time, so that a relatively balanced pressure is maintained in the reactor 10, so that when new raw materials are added and a large amount of gas is generated by a rapid reaction, the pressure tank 13 can well discharge the large amount of gas suddenly generated, but will not discharge the reaction liquid, so that it can not affect the concentration of the original reaction liquid, and the whole process can be automatically operated without manual intervention.

The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims (9)

1. A pipeline reactor pressure control device, characterized by: comprises a first connecting pipe (11) connected with the upper side of the reactor (10), a second connecting pipe (12) connected with the first connecting pipe (11), a pressure tank (13) connected with the second connecting pipe (12), a pressure detection device connected with the pressure tank (13) and a pressure relief device (15) connected with the pressure tank (13);

The diameter of the pressure tank (13) is larger than the diameter of the second connecting pipe (12).

2. The pipe reactor pressure control device according to claim 1, wherein: the first connecting pipe (11) is detachably connected with the second connecting pipe (12).

3. The pipe reactor pressure control device according to claim 1, wherein: the lower end in the pressure tank (13) is provided with a cooling cavity (21), and a cooling device is arranged in the cooling cavity (21).

4. A pipeline reactor pressure control device as claimed in claim 3, wherein: the cooling device comprises a plurality of cooling pipes (22) horizontally arranged in the cooling cavity (21), and a circulating water device connected with the cooling pipes (22).

5. The pipe reactor pressure control device according to claim 4, wherein: the cooling pipes (22) are staggered in the vertical cross section.

6. The pipe reactor pressure control device according to claim 4, wherein: the cooling pipe (22) is made of metal materials.

7. The pipe reactor pressure control device according to claim 6, wherein: the cooling pipe (22) is sleeved with a cooling sleeve (23), and the cooling sleeve (23) is made of plastic materials.

8. The pipe reactor pressure control device according to claim 7, wherein: the outer wall of the cooling sleeve (23) is provided with a plurality of cooling rings (24), and the cooling rings (24) are distributed along the axial direction of the cooling sleeve (23); the cooling ring (24) is made of plastic materials.

9. The pipe reactor pressure control device according to claim 4, wherein: the circulating water device comprises a water inlet pipe (25) connected with a plurality of cooling pipes (22), a water outlet pipe (26) connected with the cooling pipes (22) at the same time, and a pump body connected with the water inlet pipe (25) and the water outlet pipe (26).