Automatic pressure relief device of reaction kettle

Abstract

The utility model discloses an automatic pressure relief device of a reaction kettle, and belongs to the field of fine chemical engineering. The automatic pressure relief device of the reaction kettle comprises a connecting nozzle arranged on a reaction kettle body, and further comprises a pressure relief pipe fixedly arranged on the connecting nozzle, the top cover is arranged at the top of the pressure relief pipe; the multiple groups of exhaust holes are circumferentially formed in the pressure relief pipe at equal intervals; the top plate is arranged in the pressure relief pipe; the sliding rod is arranged on the top plate in a sliding manner; the pressure relief groove is formed in the connecting nozzle; the sealing head is fixedly arranged on the sliding rod, and the sealing head corresponds to the pressure relief groove; the spring is fixedly arranged between the sealing head and the top plate; the reaction kettle disclosed by the utility model can be used for effectively preventing a worker from being influenced by over-high speed of gas leaked from the reaction kettle body, and can be used for adjusting a pressure balance value in the reaction kettle body.

Description

Technical Field

[0001] The utility model relates to the technical field of fine chemical industry, in particular to an automatic pressure relief device for a reaction kettle. Background Art

[0002] A reaction kettle is a container used for physical or chemical reactions. Through the structural design and parameter configuration of the container, functions such as heating, evaporation, cooling, and mixing at low and high speeds required by the process are realized. It is widely used in industries such as petrochemical, pesticide, and pharmaceutical intermediates. When a chemical reaction is carried out on materials, gas is sometimes generated. When the pressure in the reaction kettle reaches a certain value, it needs to be automatically pressure-relieved to prevent continuous pressure increase and cause safety accidents.

[0003] At present, the automatic pressure relief device of the reaction kettle uses a pressure relief valve for pressure relief and cannot adjust the exhaust rate. In the initial stage of some chemical reactions, it is relatively violent and needs to be carried out at high temperature. At this time, the ejected high-temperature gas has a fast ejection speed and may cause harm to the staff beside the reaction kettle. Content of the Utility Model

[0004] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide an automatic pressure relief device for a reaction kettle that can overcome or at least partially solve the above problems.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0006] An automatic pressure relief device for a reaction kettle, comprising: a connecting nozzle provided on the reaction kettle body, and further comprising: a pressure relief pipe fixedly provided on the connecting nozzle; a top cover provided on the top of the pressure relief pipe; a plurality of groups of exhaust holes circumferentially and equidistantly opened on the pressure relief pipe; a top plate provided in the pressure relief pipe; a sliding rod slidably provided on the top plate; a pressure relief groove opened on the connecting nozzle; a sealing head fixedly provided on the sliding rod, and the sealing head corresponding to the pressure relief groove; a spring fixedly provided between the sealing head and the top plate; an electric telescopic rod fixedly provided on the top cover, and the axis of the output end of the electric telescopic rod being collinear with the axis of the sliding rod; a controller provided on the top cover.

[0007] Preferably, in order to facilitate prompting the staff, a warning light is provided on the top cover, and a pressure sensor is fixedly connected to the output end of the electric telescopic rod.

[0008] Further, in order to facilitate adjusting the pressure balance value in the reaction kettle body, a limiting rod is fixedly connected to the top cover, and the top plate is slidably provided on the limiting rod. A threaded rod is rotatably connected to the top cover, and the top plate is threadedly connected to the threaded rod.

[0009] In order to facilitate softening the force of the ejected gas, further, a wire mesh cover is fixedly connected to the outside of the pressure relief pipe.

[0010] Preferably, both the sealing head and the pressure relief groove are arranged in a frustum shape.

[0011] In order to facilitate maintenance, further, the top cover is threadedly connected to the pressure relief pipe.

[0012] Compared with the prior art, the present utility model provides an automatic pressure relief device for a reaction kettle, which has the following beneficial effects:

[0013] 1. For this automatic pressure relief device of the reaction kettle, the electric telescopic rod is controlled by the controller to extend to a specified length to limit the sliding amplitude of the sliding rod, thereby effectively preventing the gas rate discharged from the inside of the reaction kettle body from being too large and affecting the staff.

[0014] 2. For this automatic pressure relief device of the reaction kettle, when the gas generation rate in the reaction kettle body is too large in a short time, the gas pushes the sliding rod to move upward. The sliding rod presses the pressure sensor, and the controller receives the pressure signal of the pressure sensor. And when the pressure reaches the first set value, the controller controls the warning light to turn on. Then the controller controls the electric telescopic rod to contract, so that the distance that the sliding rod can move upward increases, thereby facilitating the rapid discharge of the gas in the reaction kettle body and effectively preventing a large amount of gas from being discharged instantaneously and affecting the staff.

[0015] 3. For this automatic pressure relief device of the reaction kettle, by rotating the threaded rod, the position of the top plate is adjusted, and the compression degree of the spring is adjusted, thereby the pressure balance value in the reaction kettle body can be adjusted.

[0016] 4. For this automatic pressure relief device of the reaction kettle, the gas ejected from the exhaust hole is softened by the wire mesh cover, thereby effectively preventing the ejection force of the gas discharged from the inside of the reaction kettle body from being too large and hurting the staff.

[0017] For the parts not involved in this device, they are the same as the prior art or can be implemented by the prior art. The present utility model effectively prevents the gas rate discharged from the inside of the reaction kettle body from being too large and affecting the staff, and can adjust the pressure balance value in the reaction kettle body. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic structural diagram of the automatic pressure relief device for a reaction kettle proposed by the present utility model;

[0019] Figure 2 is a schematic sectional view of the automatic pressure relief device for a reaction kettle proposed by the present utility model;

[0020] Figure 3 is a schematic diagram of a partially unfolded structure of the automatic pressure relief device for a reaction kettle proposed by the present utility model;

[0021] Figure 4 Automatic pressure relief device for the reactor proposed by the present utility model Figure 2 Enlarged schematic view of part A in

[0022] In the figure: 1. Reactor body; 2. Connecting nozzle; 201. Pressure relief pipe; 202. Exhaust hole; 203. Wire mesh cover; 204. Top cover; 205. Top plate; 206. Slide bar; 207. Sealing head; 208. Pressure relief groove; 209. Spring; 210. Limit rod; 211. Threaded rod; 3. Electric telescopic rod; 301. Pressure sensor; 302. Controller; 303. Warning lamp. Specific embodiments

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments.

[0024] Embodiment 1: Refer to Figures 1 - 4 , the automatic pressure relief device for the reactor includes: a connecting nozzle 2 provided on the reactor body 1, and further includes: a pressure relief pipe 201 fixedly provided on the connecting nozzle 2; a top cover 204 provided on the top of the pressure relief pipe 201; a plurality of groups of exhaust holes 202 circumferentially and equidistantly opened on the pressure relief pipe 201; a top plate 205 provided inside the pressure relief pipe 201; a slide bar 206 slidably provided on the top plate 205; a pressure relief groove 208 opened on the connecting nozzle 2; a sealing head 207 fixedly provided on the slide bar 206, and the sealing head 207 corresponds to the pressure relief groove 208; a spring 209 fixedly provided between the sealing head 207 and the top plate 205; an electric telescopic rod 3 fixedly provided on the top cover 204, and the axis of the output end of the electric telescopic rod 3 is collinear with the axis of the slide bar 206; a controller 302 provided on the top cover 204.

[0025] A warning lamp 303 is provided on the top cover 204, and a pressure sensor 301 is fixedly connected to the output end of the electric telescopic rod 3.

[0026] When automatically relieving the pressure inside the reactor body 1, the electric telescopic rod 3 is controlled by the controller 302 to extend a specified length to limit the sliding amplitude of the slide bar 206, thereby effectively preventing the gas rate discharged from the reactor body 1 from being too large and affecting the staff.

[0027] In addition, when the rate of gas generation in the reactor body 1 is too high in a short period of time, the gas pushes the sliding rod 206 upward. The sliding rod 206 presses the pressure sensor 301. The controller 302 receives the pressure signal from the pressure sensor 301. And when the pressure reaches the first set value, the controller 302 controls the warning light 303 to turn on. Then the controller 302 controls the electric telescopic rod 3 to contract, increasing the distance that the sliding rod 206 can move upward. Thus, it is convenient for the gas in the reactor body 1 to be quickly discharged, and effectively prevents a large amount of gas from being instantaneously discharged and affecting the staff.

[0028] Embodiment 2: Refer to Figures 1 - 4 , the automatic pressure relief device of the reactor is basically the same as that of Embodiment 1. Further, a limiting rod 210 is fixedly connected to the top cover 204, and the top plate 205 is slidably arranged on the limiting rod 210. A threaded rod 211 is rotatably connected to the top cover 204, and the top plate 205 is threadedly connected to the threaded rod 211.

[0029] By rotating the threaded rod 211, the position of the top plate 205 is adjusted, and the compression degree of the spring 209 is adjusted. Thus, the pressure balance value in the reactor body 1 can be adjusted. At this time, by adjusting the electric telescopic rod 3, the pressure sensor 301 is brought into contact with the sliding rod 206, and the value of the pressure sensor 301 reaches the second set value. At this time, the distance adjusted by the top plate 205 can be judged by the extended length of the electric telescopic rod 3.

[0030] It should be noted that a positioner can be built into the end of the electric telescopic rod 3 to judge the extended length of the electric telescopic rod 3.

[0031] A wire mesh cover 203 is fixedly connected to the outside of the pressure relief pipe 201.

[0032] Both the sealing head 207 and the pressure relief groove 208 are arranged in a frustum shape.

[0033] The top cover 204 is threadedly connected to the pressure relief pipe 201.

[0034] The wire mesh cover 203 softens the gas ejected from the exhaust hole 202, thus effectively preventing the gas ejected from the reactor body 1 from having too large a jet force and causing harm to the staff.

[0035] The above is only the preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and the inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. Automatic pressure relief device for reaction kettle, comprising: The connecting nozzle (2) arranged on the reactor body (1), characterized in that it further comprises: A pressure relief pipe (201), fixedly arranged on the connecting nozzle (2); A top cover (204), arranged on the top of the pressure relief pipe (201); Multiple groups of exhaust holes (202), circumferentially and equidistantly arranged on the pressure relief pipe (201); A top plate (205), arranged inside the pressure relief pipe (201); A sliding rod (206), slidably arranged on the top plate (205); A pressure relief groove (208), opened on the connecting nozzle (2); A sealing head (207), fixedly arranged on the sliding rod (206), and the sealing head (207) corresponds to the pressure relief groove (208); A spring (209), fixedly arranged between the sealing head (207) and the top plate (205); An electric telescopic rod (3), fixedly arranged on the top cover (204), and the axis of the output end of the electric telescopic rod (3) is collinear with the axis of the sliding rod (206); A controller (302), arranged on the top cover (204).

2. The automatic pressure relief device for the reactor according to claim 1, wherein, A warning lamp (303) is arranged on the top cover (204), and a pressure sensor (301) is fixedly connected to the output end of the electric telescopic rod (3).

3. The automatic pressure relief device for the reactor according to claim 1, wherein A limiting rod (210) is fixedly connected to the top cover (204), and the top plate (205) is slidably arranged on the limiting rod (210). A threaded rod (211) is rotatably connected to the top cover (204), and the top plate (205) is threadedly connected to the threaded rod (211).

4. The automatic pressure relief device for the reaction kettle according to claim 1, characterized in that, A wire mesh cover (203) is fixedly connected to the outer side of the pressure relief pipe (201).

5. The automatic pressure relief device for the reactor according to claim 1, characterized in that, Both the sealing head (207) and the pressure relief groove (208) are arranged in a frustum shape.

6. The automatic pressure relief device for the reaction kettle according to claim 3, characterized in that, The top cover (204) is threadedly connected to the pressure relief pipe (201).

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