Chemical safety ventilation device

Abstract

The utility model relates to the technical field of chemical engineering, in particular to a chemical engineering safety ventilation device which comprises a ventilation device body, and an assembly convenient to disassemble is arranged on the upper side of the ventilation device body. The assembly convenient to disassemble comprises an installation opening formed in the middle of the upper side of the ventilation device body, L-shaped supporting plates are arranged on the two sides of the installation opening respectively, sliding grooves are formed in the middles of the L-shaped supporting plates, sliding blocks are clamped and embedded in the middles of the sliding grooves, and hydraulic cylinders are arranged on the lower sides of one ends of the sliding blocks. According to the chemical safety ventilation device, one end of a rotary clamping plate is clamped to one side of a set of rotary blocks through the rotary clamping plate, a filter screen plate is conveniently limited, the filter screen plate can be disassembled by reversely rotating the clamping plate to be screwed out, the height of a ventilation fan is adjusted through stretching and retracting of a hydraulic cylinder, limiting is conducted through a limiting block, and installation does not need screws; and moreover, the shell of the ventilation device main body does not need to be disassembled, and the operation is simple.

Description

Technical Field

[0001] This utility model relates to the field of chemical technology, and in particular to a chemical safety ventilation device. Background Technology

[0002] Chemical plants typically generate flammable, explosive, and toxic gases during production. To ensure normal production operations and a safe working environment for operators, proper ventilation is necessary. To prevent these harmful gases from spreading to other spaces, they must be filtered before being released. While many existing filtration devices exist, they require regular maintenance, necessitating shutdowns for up to filtration. This inability to filter gases generated during maintenance contributes to air pollution and necessitates improvements.

[0003] A chemical safety ventilation device is disclosed in patent CN219473864U. This patent includes an air inlet pipe, an air outlet pipe, a filter device, a fan, a pipe body, a conical pipe, a partition plate, a baffle plate, a filter housing, an opening, a mounting plate, bolts, a ring, a rotating shaft, and a hexagonal prism. The air inlet pipe, filter device, exhaust pipe, and fan work together to treat harmful gases. Two filter housings are included, which, in conjunction with the baffle plate, allow for maintenance of the filter device and replacement of the filter housings without shutting down the chemical plant. However, this patent also has the following problems:

[0004] The fan equipment of the aforementioned chemical safety ventilation device is located inside the equipment. When maintenance is required, the entire device needs to be disassembled, which affects the efficiency of installation and maintenance and makes operation inconvenient. At the same time, when the filter equipment becomes clogged, it is difficult to replace. Common filter structures require manual bolt fixing and installation, resulting in low operating efficiency.

[0005] To address the above problems, a chemical safety ventilation device needs to be designed to overcome them. Utility Model Content

[0006] The main purpose of this utility model is to provide a chemical safety ventilation device that can effectively solve the problems in the background art.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0008] A chemical safety ventilation device includes a main body of the ventilation device, and an easy-to-disassemble component is provided on the upper side of the main body of the ventilation device;

[0009] The easily detachable component includes an installation port located in the middle of the upper side of the main body of the ventilation device. L-shaped support plates are respectively provided on both sides of the installation port. A sliding groove is formed in the middle of the L-shaped support plate, and a slider is embedded in the middle of the sliding groove. A hydraulic cylinder is provided on the lower side of one end of the slider, and the bottom of the hydraulic cylinder is installed on the outer wall of the main body of the ventilation device. A concave connecting plate is provided on the outer wall of the other end of the slider. A limiting groove is formed on the upper side of the concave connecting plate near the bottom, and a limiting block is embedded in the inner wall of the limiting groove. A ventilation fan is placed on the upper side of the bottom of the concave connecting plate, and a dustproof plate is installed on one side of the ventilation fan. A slot is formed at one end of the main body of the ventilation device, and a sealing ring is provided on the outer wall of the slot. Connecting seats are respectively provided on both sides of the top of the slot, and a rotating block is provided on the upper side of the connecting seat. A locking plate is provided on one side of a set of rotating blocks, and a filter screen is embedded in the inner wall of the slot.

[0010] As a preferred embodiment of this utility model, one end of the main body of the ventilation device is provided with a ventilation opening, the number of hydraulic cylinders is two, the number of sliders is two, the number of L-shaped support plates is two, the number of limiting blocks is two, the number of connecting seats is four, the number of rotating blocks is four, and the number of clamping plates is two.

[0011] As a preferred embodiment of this utility model, the filter screen is snapped into the slot, and the sealing ring is fixedly connected to the slot.

[0012] As a preferred embodiment of this utility model, the connecting seat is fixedly connected to the main body of the ventilation device, and the rotating block is rotatably connected to the connecting seat.

[0013] As a preferred embodiment of this utility model, the card plate is fixedly connected to a set of rotating blocks, and one end of the card plate is engaged with another set of rotating blocks.

[0014] As a preferred embodiment of this utility model, the hydraulic cylinder is fixedly connected to the main body of the ventilation device, the hydraulic cylinder is fixedly connected to the slider, and the concave connecting plate is fixedly connected to the slider.

[0015] As a preferred embodiment of this utility model, the limiting block and the limiting groove are slidably connected, and the ventilation fan and the dustproof plate are detachably installed.

[0016] Beneficial effects

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] In this utility model, a chemical safety ventilation device is designed. A rotating clamp plate is used to clamp one end of the filter screen to one side of a set of rotating blocks, which facilitates the limiting of the filter screen. Disassembly is achieved by rotating the clamp plate in the opposite direction to unscrew it. The ventilation fan is height-adjusted by the extension and retraction of the hydraulic cylinder and is limited by the limiting block. No screws are required for installation, and disassembly is more time-saving. Furthermore, it does not require disassembling the outer shell of the main body of the ventilation device, making operation simple. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the main structure of the ventilation device of this utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the ventilation opening and hydraulic cylinder of this utility model;

[0021] Figure 3 This is a structural schematic diagram of the L-shaped support plate and the concave connecting plate of this utility model;

[0022] Figure 4 This is a structural schematic diagram of part A of this utility model;

[0023] Figure 5 This is a structural schematic diagram of the ventilation fan and dustproof plate of this utility model.

[0024] In the diagram: 1. Main body of the ventilation device; 2. Ventilation opening; 3. Easy-to-disassemble component; 301. Hydraulic cylinder; 302. Mounting port; 303. Slot; 304. Sealing ring; 305. Connecting seat; 306. Rotating block; 307. Clamping plate; 308. L-shaped support plate; 309. Slide groove; 310. Sliding block; 311. Concave connecting plate; 312. Limiting groove; 313. Limiting block; 314. Ventilation fan; 315. Dustproof plate; 316. Filter screen. Detailed Implementation

[0025] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0026] like Figure 1-5 As shown, a chemical safety ventilation device includes a ventilation device body 1, and a disassembly-friendly component 3 is provided on the upper side of the ventilation device body 1.

[0027] The easily disassembled component 3 includes a mounting opening 302 located in the middle of the upper side of the main body 1 of the ventilation device. L-shaped support plates 308 are respectively provided on both sides of the mounting opening 302. A sliding groove 309 is provided in the middle of the L-shaped support plate 308, and a slider 310 is fitted into the middle of the sliding groove 309. A hydraulic cylinder 301 is provided on the lower side of one end of the slider 310, and the bottom of the hydraulic cylinder 301 is installed on the outer wall of the main body 1 of the ventilation device. A concave connecting plate 311 is provided on the outer wall of the other end of the slider 310, and a limiting groove 3 is provided on the upper side of the concave connecting plate 311 near the bottom. 12. A limiting block 313 is embedded in the inner wall of the limiting groove 312. A ventilation fan 314 is placed on the bottom upper side of the concave connecting plate 311. A dustproof plate 315 is installed on one side of the ventilation fan 314. A slot 303 is opened at one end of the main body 1 of the ventilation device. A sealing ring 304 is provided on the outer wall of the slot 303. A connecting seat 305 is provided on both sides of the top of the slot 303. A rotating block 306 is provided on the upper side of the connecting seat 305. A card plate 307 is provided on one side of a set of rotating blocks 306. A filter screen plate 316 is embedded in the inner wall of the slot 303.

[0028] Please see the appendix Figure 1 Appendix Figure 2 and attached Figure 5 As shown, one end of the main body 1 of the ventilation device is provided with a ventilation port 2. Two sets of hydraulic cylinders 301, two sets of sliders 310, two sets of L-shaped support plates 308, two sets of limiting blocks 313, four sets of connecting seats 305, four sets of rotating blocks 306, and two sets of clamping plates 307. A filter screen 316 is clamped to a slot 303, and a sealing ring 304 is fixedly connected to the slot 303. The connecting seat 305 is connected to the ventilation device. The main body 1 is fixedly connected to each other, the rotating block 306 is rotatably connected to the connecting seat 305, the clamping plate 307 is fixedly connected to a set of rotating blocks 306, one end of the clamping plate 307 is clamped to another set of rotating blocks 306, the hydraulic cylinder 301 is fixedly connected to the main body 1 of the ventilation device, the hydraulic cylinder 301 is fixedly connected to the slider 310, the concave connecting plate 311 is fixedly connected to the slider 310, the limiting block 313 is slidably connected to the limiting groove 312, and the ventilation fan 314 and the dustproof plate 315 are detachably installed;

[0029] The ventilation fan 314 is equipped with a dustproof plate 315 on one side. The dustproof plate 315 can effectively prevent dust and prevent impurities from directly entering the ventilation fan 314 and affecting its service life.

[0030] The working process of this utility model is as follows: When the filter screen 316 needs to be disassembled during operation using the chemical safety ventilation device designed in this solution, a set of rotating blocks 306 is manually rotated to drive the clamping plate 307 out of the groove on one side of another set of rotating blocks 306, thereby removing the filter screen 316 upwards. This facilitates cleaning or replacement of the filter screen 316. The operation is simple, does not require disassembling screws, and saves time. When disassembling the ventilation fan 314, the two sets of hydraulic cylinders 301 are extended by the external controller, which drives the slider 310 at one end to slide with the slide groove 309, while simultaneously moving the concave connecting plate 311 on which the ventilation fan 314 is installed to move upwards and out of the installation port 302. By manually pulling the limiting blocks 313 on both sides of the lower end of the dustproof plate 315 in the opposite direction, the ventilation fan 314 is no longer clamped to the sides of the dustproof plate 315, making it easy to remove without the need for screw fixation. The disassembly is convenient, facilitating maintenance or cleaning. Furthermore, a cover plate is provided on the top of the installation port 302 to enhance the sealing effect.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A chemical safety ventilation device, comprising a ventilation device body (1), characterized in that: The upper side of the main body (1) of the ventilation device is provided with a component (3) that is easy to disassemble; The easily detachable component (3) includes an installation port (302) located in the middle of the upper side of the ventilation device body (1). L-shaped support plates (308) are respectively provided on both sides of the installation port (302). A sliding groove (309) is provided in the middle of the L-shaped support plate (308), and a slider (310) is embedded in the middle of the sliding groove (309). A hydraulic cylinder (301) is provided on the lower side of one end of the slider (310). The bottom of the hydraulic cylinder (301) is installed on the outer wall of the ventilation device body (1). A concave connecting plate (311) is provided on the outer wall of the other end of the slider (310). A limiting groove (312) is provided on the upper side of the concave connecting plate (311) near the bottom. The inner wall of the limiting groove (312) is fitted with a limiting block (313), a ventilation fan (314) is placed on the upper side of the bottom of the concave connecting plate (311), a dustproof plate (315) is installed on one side of the ventilation fan (314), a slot (303) is opened at one end of the main body (1) of the ventilation device, a sealing ring (304) is provided on the outer wall of the slot (303), a connecting seat (305) is provided on both sides of the top of the slot (303), a rotating block (306) is provided on the upper side of the connecting seat (305), a card plate (307) is provided on one side of a set of rotating blocks (306), and a filter screen plate (316) is fitted into the inner wall of the slot (303).

2. The chemical safety ventilation device according to claim 1, characterized in that: The ventilation device body (1) has a ventilation opening (2) at one end. The number of hydraulic cylinders (301) is two, the number of sliders (310) is two, the number of L-shaped support plates (308) is two, the number of limiting blocks (313) is two, the number of connecting seats (305) is four, the number of rotating blocks (306) is four, and the number of clamping plates (307) is two.

3. A chemical safety ventilation device according to claim 1, characterized in that: The filter screen (316) is snapped into the slot (303), and the sealing ring (304) is fixedly connected to the slot (303).

4. A chemical safety ventilation device according to claim 1, characterized in that: The connecting seat (305) is fixedly connected to the main body (1) of the ventilation device, and the rotating block (306) is rotatably connected to the connecting seat (305).

5. A chemical safety ventilation device according to claim 1, characterized in that: The card plate (307) is fixedly connected to a set of rotating blocks (306), and one end of the card plate (307) is engaged with another set of rotating blocks (306).

6. A chemical safety ventilation device according to claim 1, characterized in that: The hydraulic cylinder (301) is fixedly connected to the main body (1) of the ventilation device, the hydraulic cylinder (301) is fixedly connected to the slider (310), and the concave connecting plate (311) is fixedly connected to the slider (310).

7. A chemical safety ventilation device according to claim 1, characterized in that: The limiting block (313) is slidably connected to the limiting groove (312), and the ventilation fan (314) is detachably installed to the dustproof plate (315).

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