A chemical kettle with explosion-proof function

Abstract

The utility model belongs to the technical field of reaction kettles, and specifically relates to a chemical kettle with explosion-proof function, including support legs, the support legs are fixedly connected to a kettle body, a discharge port is opened at the bottom of the kettle body, a feed port is arranged at the top of the kettle body, a pressure relief device is arranged at the top of the kettle body, and the pressure relief device includes a pressure relief rod, and the pressure relief rod passes through the kettle body and is fixedly connected to the kettle body. In the chemical kettle with explosion-proof function, when the pressure in the kettle body increases, the gas squeezes the piston rod, and when the piston rod slides through the lower pressure relief hole, the gas is discharged forward through the pressure relief hole to reduce the air pressure in the kettle body. When the air pressure in the kettle body is still too high after passing through the first layer of pressure relief, the gas continues to squeeze the piston rod to make the slider rise, and when the slider slides through the upper pressure relief hole, the gas is discharged from the two layers of pressure relief holes at the same time to reduce the air pressure in the kettle body. This setting can adjust the pressure relief amount of the gas and improve the efficiency of pressure relief.

Description

Technical Field

[0001] The utility model relates to the technical field of reaction kettles, in particular to a chemical kettle with an explosion-proof function. Background Art

[0002] A reactor is broadly understood as a container for physical or chemical reactions. Through the structural design and parameter configuration of the container, the heating, evaporation, cooling and low-speed mixing functions required by the process are realized. Reactors are widely used in the fields of petroleum, chemical industry, rubber, pesticides, dyes, medicine and food. They are pressure vessels used to complete processes such as vulcanization, nitration, hydrogenation, hydrocarbonization, polymerization and condensation. Due to some chemical reactions, a large amount of gas will be generated inside the reactor, resulting in an increase in the air pressure inside the reactor, which poses a certain safety risk. Therefore, a chemical reactor with explosion-proof function is required.

[0003] At present, in the prior art, a Chinese patent with announcement number CN209254747U discloses a chemical reactor with explosion-proof function. When a large amount of gas is generated by the reaction in the reactor, resulting in excessive pressure in the reactor, the high-pressure gas will push the pressure relief plate compression spring through the exhaust hole in the flange cover, causing the pressure relief plate and the flange cover to shift, resulting in a gap to allow the high-pressure gas to escape. However, the pressure relief amount in the device cannot be adjusted, resulting in the gas in the reactor being unable to be effectively discharged, and the decompression effect is general. In addition, the pressure relief pressure value in the device is fixed and cannot be adjusted. In view of this, we propose a chemical reactor with explosion-proof function. Utility Model Content

[0004] The main purpose of the utility model is to provide a chemical kettle with explosion-proof function, which can solve the problems raised in the above background technology.

[0005] To achieve the above purpose, the utility model proposes a chemical kettle with explosion-proof function, including support legs for fixing and supporting the kettle body, the support legs are fixedly connected to the kettle body, a device for physical or chemical reaction, a discharge port is provided below the kettle body, a feed port is provided above the kettle body, a pressure relief device is provided above the kettle body, and the device is used to relieve pressure in the kettle body to prevent the air pressure in the kettle body from being too high and affecting safety, and the pressure relief device includes:

[0006] A pressure relief rod, the pressure relief rod passes through the kettle body and is fixedly connected to the kettle body;

[0007] A pressure-increasing valve is used to adjust the pressure relief pressure value of the pressure relief device. The pressure-increasing valve passes through the pressure relief rod and is threadedly connected to the pressure relief rod.

[0008] Preferably, the kettle body is provided with a cooling cavity. When the temperature inside the kettle body becomes high, the kettle body is physically cooled by adding coolant into the cooling cavity, thereby lowering the temperature inside the kettle body and reducing the pressure inside the kettle body. A motor is fixedly connected to the top of the kettle body to provide power for the stirring rod. The output end of the motor is fixedly connected to the stirring rod. The stirring rod rotates inside the kettle body, so that the reactants in the kettle body react more fully, thereby improving the reaction efficiency in the kettle body. The stirring rod passes through the kettle body and is rotatably connected to the kettle body.

[0009] Preferably, the pressure relief rod is provided with a slide groove 1, which makes the piston rod slide more smoothly and also relieves pressure on the kettle body. The slide groove 1 is slidably connected with the piston rod, and the piston rod passes through the slider and is slidably connected with the slider, thereby improving the sliding stability of the piston rod.

[0010] Preferably, a small spring is fixedly connected to the outer wall of the piston rod to provide resistance to the sliding of the piston rod. One end of the small spring away from the piston rod is fixedly connected to the outer wall of the slider to fixedly support the small spring. Under the action of the small spring, the piston rod and the slider are elastically connected.

[0011] Preferably, a second slideway is provided above the first slideway, and a pressure block is slidably connected to the second slideway, and the large spring is elastically deformed by sliding the pressure block, and the pressure relief value of the pressure relief device is adjusted by elastically deforming the large spring. A large spring is fixedly connected to the outer wall of the pressure block, and one end of the large spring away from the pressure block is fixedly connected to the outer wall of the slider.

[0012] Preferably, the pressure relief rod is provided with a pressure relief hole, and the gas is discharged through the pressure relief hole to achieve the purpose of pressure relief on the kettle body.

[0013] Beneficial Effects

[0014] The utility model provides a chemical kettle with explosion-proof function. It has the following beneficial effects:

[0015] (1) In the chemical kettle with explosion-proof function, when the pressure inside the kettle increases, the gas squeezes the piston rod. When the piston rod slides through the lower pressure relief hole, the gas is discharged through the pressure relief hole to reduce the air pressure inside the kettle. When the air pressure inside the kettle is still too high after passing through the first pressure relief hole, the gas will continue to squeeze the piston rod, causing the piston rod to squeeze the slider to slide upward. When the slider slides through the upper pressure relief hole, the gas is discharged from the two pressure relief holes at the same time to reduce the air pressure inside the kettle. This setting can adjust the gas pressure relief amount and improve the pressure relief efficiency.

[0016] (2) The chemical kettle with explosion-proof function rotates the pressure valve to make the pressure block slide downward in the second slide groove to squeeze the large spring. When the large spring becomes elastic, the force required by the slider to squeeze the large spring increases, and the required air strength is higher. In this way, the pressure relief value of the pressure relief device can be adjusted. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0018] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0019] Figure 2 It is a schematic diagram of the overall three-dimensional cross-sectional structure of the utility model;

[0020] Figure 3 This is a schematic diagram of the three-dimensional structure of the pressure relief device of the utility model;

[0021] Figure 4 It is a schematic diagram of the cross-sectional structure of the pressure relief device of the utility model.

[0022] Description of Figure Numbers:

[0023] 1. Support legs; 2. Kettle body; 3. Discharge port; 4. Feed port; 5. Motor; 6. Pressure relief device; 61. Pressure valve; 62. Pressure relief rod; 621. Slide 1; 622. Piston rod; 623. Small spring; 624. Pressure relief hole; 625. Slider; 626. Slide 2; 627. Large spring; 628. Pressure block; 7. Stirring rod; 8. Cooling chamber.

[0024] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

[0026] See also Figure 1-Figure 4The utility model proposes a chemical kettle with explosion-proof function, including a supporting leg 1, the supporting leg 1 is fixedly connected to a kettle body 2, a discharge port 3 is provided below the kettle body 2, a feed port 4 is provided above the kettle body 2, a cooling chamber 8 is provided in the kettle body 2, a motor 5 is fixedly connected above the kettle body 2, a stirring rod 7 is fixedly connected to the output end of the motor 5, the stirring rod 7 passes through the kettle body 2 and is rotatably connected to the kettle body 2.

[0027] In the embodiment of the utility model, in order to release the pressure in the reactor, specifically, a pressure relief device 6 is provided above the reactor body 2, and the pressure relief device 6 includes a pressure relief rod 62, the pressure relief rod 62 passes through the reactor body 2 and is fixedly connected to the reactor body 2 with a pressure-increasing valve 61, and the pressure-increasing valve 61 passes through the pressure relief rod 62 and is threadedly connected to the pressure relief rod 62. By rotating the pressure-increasing valve 61, the pressure-increasing block 628 slides downward in the second slide groove 626. When the pressure-increasing block 628 slides downward, the large spring 627 is squeezed, causing the large spring 627 to undergo elastic deformation. When the large spring 627 undergoes elastic deformation, the slider 625 squeezes The force required by the large spring 627 increases. This method adjusts the pressure relief value of the pressure relief device 6 by squeezing the large spring 627. The pressure relief rod 62 is provided with a pressure relief hole 624. The pressure relief rod 62 is provided with a slide groove 621. The slide groove 621 is slidably connected with a piston rod 622. The piston rod 622 passes through the slider 625 and is slidably connected with the slider 625. The outer wall of the piston rod 622 is fixedly connected with a small spring 623. One end of the small spring 623 away from the piston rod 622 is fixedly connected to the outer wall of the slider 625. A slide groove 626 is provided above the slide groove 621. The straightness of the slide groove 626 is The diameter of the slider 625 is larger than the diameter of the slide groove 1 621, and the two are interconnected. The diameter of the slider 625 is consistent with that of the slide groove 2 626, and the two are slidably connected. The slide groove 2 626 can also limit the slider 625 to prevent the slider 625 from remaining in place when the pressure valve 61 is adjusting the pressure relief. The slide groove 2 626 is slidably connected with a pressure block 628, and a large spring 627 is fixedly connected to the outer wall of the pressure block 628. One end of the large spring 627 away from the pressure block 628 is fixedly connected to the outer wall of the slider 625. When the pressure in the kettle body 2 increases, the gas squeezes the piston rod 622, so that the piston rod 622 Sliding in the slide groove 621, when the piston rod 622 slides over the lower pressure relief hole 624, the gas is discharged through the pressure relief hole 624 to reduce the air pressure in the kettle body 2. When the gas passes through the first layer of pressure relief pipe and the air pressure in the kettle body 2 is still too high, the gas will continue to squeeze the piston rod 622, causing the piston rod 622 to squeeze the slider 625 to slide upward. When the slider 625 slides upward, the large spring 627 is squeezed and elastically deformed. When the slider 625 slides over the upper pressure relief hole 624, the gas is discharged from the two layers of pressure relief holes 624 at the same time to reduce the air pressure in the kettle body 2.

[0028] In the utility model, when in use, the reactants are first placed in the kettle body 2. When the reactants react, when the pressure in the kettle body 2 increases, the gas squeezes the piston rod 622. When the piston rod 622 slides through the lower pressure relief hole 624, the gas is discharged through the pressure relief hole 624. When the gas passes through the first layer of pressure relief pipe, the air pressure inside and outside the kettle body 2 cannot reach balance. At this time, the gas will continue to squeeze the piston rod 622, causing the slider 625 to slide upward. When the slider 625 slides through the upper layer of pressure relief hole 624, the gas is discharged from the two layers of pressure relief holes 624 at the same time, completing the pressure relief of the kettle body 2.

[0029] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A chemical kettle with explosion-proof function, comprising a support leg (1), characterized in that: The support leg (1) is fixedly connected to a kettle body (2); a discharge port (3) is provided at the bottom of the kettle body (2); a feed port (4) is provided at the top of the kettle body (2); a pressure relief device (6) is provided at the top of the kettle body (2); the pressure relief device (6) comprises: A pressure relief rod (62), the pressure relief rod (62) passes through the kettle body (2) and is fixedly connected to the kettle body (2), the pressure relief rod (62) is provided with a slide groove (621), the slide groove (621) is slidably connected to a piston rod (622), the piston rod (622) passes through a slider (625) and is slidably connected to the slider (625), and a small spring (623) is fixedly connected to the outer wall of the piston rod (622), and the small spring (623) is away from the piston rod One end of (622) is fixedly connected to the outer wall of the slider (625), a second slide groove (626) is provided above the first slide groove (621), a pressure block (628) is slidably connected to the second slide groove (626), a large spring (627) is fixedly connected to the outer wall of the pressure block (628), one end of the large spring (627) away from the pressure block (628) is fixedly connected to the outer wall of the slider (625), and a pressure relief hole (624) is provided on the pressure relief rod (62); A pressure-increasing valve (61), wherein the pressure-increasing valve (61) passes through the pressure-relief rod (62) and is threadedly connected to the pressure-relief rod (62).

2. The chemical reactor with explosion-proof function according to claim 1, characterized in that: The kettle body (2) is provided with a cooling chamber (8); a motor (5) is fixedly connected to the top of the kettle body (2); a stirring rod (7) is fixedly connected to the output end of the motor (5); the stirring rod (7) passes through the kettle body (2) and is rotatably connected to the kettle body (2).

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