Positive-pressure explosion-proof type dry fog electric control constant-pressure liquid supply device

Abstract

The utility model discloses a positive-pressure anti-explosion type dry fog electric control constant-pressure liquid supply device. Belongs to the technical field of dry fog electric control. According to the technical key points, the cabinet comprises a cabinet body, the cabinet body is internally divided into an electric control chamber and a liquid supply chamber through a horizontal partition plate, and a plurality of wire passing holes are formed in the horizontal partition plate; a positive pressure assembly is arranged on the side wall of the electric control chamber; a damping platform is arranged at the bottom in the liquid supply chamber, a water tank is arranged on the damping platform, the upper end of the water tank is connected with a water inlet pipe communicated to the outside of the cabinet body, and the lower end of the water tank is connected with a liquid supply assembly connected with dry fog; a through hole matched with the water inlet pipe is formed in the side wall of the liquid supply chamber, and a damping rubber sleeve is arranged in the through hole; the utility model aims to provide the positive-pressure explosion-proof type dry fog electric control constant-pressure liquid supply device which is simple in structure and reduces vibration conduction. The device is used for installing the dry fog electric control liquid supply system in an occasion with explosive gas.

Description

Technical Field

[0001] The utility model relates to a dry mist electrically controlled liquid supply device, and more specifically, to a positive pressure explosion-proof dry mist electrically controlled constant pressure liquid supply device. Background Art

[0002] When dry mist is used for spray dust suppression in places where explosive gases exist, such as kerosene chemical industry and metal smelting, the electrical equipment of the dry mist electronic control system and liquid supply system will generate electric sparks or generate high temperatures during use. Once they come into contact with the explosive gas on site, they are likely to cause explosions, directly endangering the property and life safety of users. Therefore, it is usually necessary to install the dry mist electrical equipment in an explosion-proof distribution device.

[0003] When installing dry mist electrical equipment in an explosion-proof distribution cabinet, the water pump of the liquid supply system will inevitably vibrate during operation. The vibration will be transmitted to the entire explosion-proof distribution cabinet. Long-term vibration will cause the electronic components or screws in the electronic control system to loosen, affecting the stability and accuracy of the electronic control system. Utility Model Content

[0004] The purpose of the utility model is to address the deficiencies of the above-mentioned prior art and to provide a positive pressure explosion-proof dry mist electrically controlled constant pressure liquid supply device which has a simple structure and reduces vibration conduction.

[0005] The technical solution of the utility model is achieved as follows: a positive pressure explosion-proof dry mist electric control constant pressure liquid supply device, including a cabinet body, which is divided into an electric control room and a liquid supply room by a horizontal partition, and a plurality of wire holes are provided on the horizontal partition; a positive pressure component is provided on the side wall of the electric control room.

[0006] A shock-absorbing platform is provided at the bottom of the liquid supply chamber, and a water tank is provided on the shock-absorbing platform. The upper end of the water tank is connected to a water inlet pipe leading to the outside of the cabinet, and the lower end of the water tank is connected to a liquid supply assembly connected to the dry mist; a through hole is provided on the side wall of the liquid supply chamber to match the water inlet pipe, and a shock-absorbing rubber sleeve is provided in the through hole.

[0007] In the above-mentioned positive pressure explosion-proof dry mist electric controlled constant pressure liquid supply device, the shock absorption platform includes an installation platform arranged in the liquid supply chamber, and a buffer module is provided on the side walls around the installation platform. The gap between the buffer module and the inner wall of the liquid supply chamber is 0.5-1 cm.

[0008] At least three support columns are evenly distributed at the bottom of the installation platform, and the free ends of the support columns are provided with step rings; positioning cylinders corresponding to the support columns are provided at the bottom of the liquid supply chamber, and shock-absorbing springs matching the step rings are provided in each positioning cylinder.

[0009] In the above-mentioned positive pressure explosion-proof dry mist electronically controlled constant pressure liquid supply device, the liquid supply component includes a liquid supply pipe connected to the lower end of the water tank, and the liquid supply pipe is connected to the dry mist; a centrifugal pump and a gas tank are sequentially provided on the liquid supply pipe.

[0010] In the above-mentioned positive pressure explosion-proof dry mist electrically controlled constant pressure liquid supply device, the outer surface of the water tank and the liquid supply component are covered with an insulation layer; the insulation layer includes insulation cotton covered on the surface of the liquid supply component, a heating tape is wound between the insulation cotton and the liquid supply component, and an insulation tin foil layer is provided outside the insulation cotton.

[0011] After the utility model adopts the above structure, the water tank and the liquid supply assembly are installed on the shock-absorbing platform to offset the vibration generated during the working process, thereby preventing the vibration from being transmitted to the electric control room, and by arranging the shock-absorbing rubber sleeve, the through hole is sealed while preventing the water inlet pipe from transmitting the vibration to the side wall of the cabinet, thereby ensuring that the electric control system in the electric control room will not be affected by the vibration, preventing the electronic components from loosening, and ensuring the stability and accuracy of the electric control system. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The present invention will be further described in detail below with reference to the embodiments in the accompanying drawings, but this does not constitute any limitation to the present invention.

[0013] Figure 1 It is a structural diagram of the utility model;

[0014] Figure 2 It is a schematic structural diagram of the side view of the utility model;

[0015] Figure 3 This is a schematic diagram of the partial structure of point A of the present utility model;

[0016] Figure 4 This is a schematic diagram of the local structure of B of the utility model;

[0017] Figure 5 It is a schematic diagram of the local structure of position C of the present utility model.

[0018] In the figure: 1. Cabinet; 2. Horizontal partition; 3. Electric control room; 4. Liquid supply room; 5. Positive pressure assembly; 6. Shock-absorbing platform; 6a. Mounting platform; 6b. Support column; 6c. Step ring; 6d. Positioning cylinder; 6e. Shock-absorbing spring; 7. Water tank; 8. Water inlet pipe; 9. Liquid supply assembly; 9a. Liquid supply pipe; 9b. Centrifugal pump; 9c. Gas tank; 10. Shock-absorbing rubber sleeve; 11. Buffer module; 11a. C-shaped block; 11b. Rubber pad; 11c. Step hole; 11d. Hexagon socket screw; 11e. Mounting hole; 11f. Positioning plate; 11g. Slide; 12. Insulation layer; 12a. Insulation cotton; 12b. Heating tape. DETAILED DESCRIPTION

[0019] See Figure 1-5 As shown, the present invention discloses a positive-pressure, explosion-proof, dry mist, electrically controlled, constant-pressure liquid supply device comprising a cabinet 1. The cabinet 1 is characterized in that the interior is divided into an electrical control chamber 3 and a liquid supply chamber 4 by a horizontal partition 2, with several wire holes provided on the horizontal partition 2. A positive-pressure assembly 5 is provided on the sidewall of the electrical control chamber 3. The positive-pressure assembly includes an air intake and exhaust pipes and corresponding valves, a filter assembly provided on the air intake pipe, and a pressure gauge and alarm provided on the exhaust pipe. The specific structure and connection method are conventional and will not be further described here.

[0020] Corresponding mounting hooks or clips are provided on the inner wall of the electric control room for installing electric control components, which are connected to the external power switch. Corresponding door panels are provided on the cabinets of the electric control room and the liquid supply room, and sealing strips are provided on the door panels for sealing. The specific structure and connection method are all existing technologies and will not be repeated here.

[0021] A shock-absorbing platform 6 is provided at the bottom of the liquid supply chamber 4, and a water tank 7 is provided on the shock-absorbing platform 6. The upper end of the water tank 7 is connected to a water inlet pipe 8 that leads to the outside of the cabinet 1, and the lower end of the water tank 7 is connected to a liquid supply component 9 that is connected to the external dry mist equipment; a through hole that cooperates with the water inlet pipe 8 is provided on the side wall of the liquid supply chamber 4, and a shock-absorbing rubber sleeve 10 is provided in the through hole.

[0022] The water tank and liquid supply components are installed on a shock-absorbing platform to offset the vibration generated during the working process, preventing the vibration from being transmitted to the electrical control room. In addition, by setting a shock-absorbing rubber sleeve to seal the through hole, the water inlet pipe is prevented from transmitting the vibration to the side wall of the cabinet, ensuring that the electrical control system in the electrical control room will not be affected by the vibration, preventing electronic components from loosening, and ensuring the stability and accuracy of the electrical control system.

[0023] In this embodiment, the shock-absorbing platform 6 includes a mounting platform 6a disposed within the liquid supply chamber 4. A buffer module 11 is provided on the sidewalls surrounding the mounting platform 6a. A gap of 0.5-1 cm is provided between the buffer module 11 and the inner wall of the liquid supply chamber 4. The buffer module prevents the shock-absorbing platform from contacting the inner wall of the liquid supply chamber during vibration, thereby transmitting vibration to the cabinet.

[0024] At least three support columns 6b are evenly distributed across the bottom of the mounting platform 6a, each with a stepped ring 6c at its free end. Positioning cylinders 6d, corresponding one to each support column 6b, are located at the bottom of the liquid supply chamber 4. Each positioning cylinder 6d houses a shock-absorbing spring 6e that cooperates with the stepped ring 6c. An inverted tapered portion is formed at the upper end of each support column to increase the contact area between the support column and the mounting platform, enhancing the stability of the mounting platform.

[0025] In this embodiment, the buffer module 11 comprises a C-shaped block 11a mounted on the end of the mounting platform 6a. Several rubber pads 11b are evenly distributed on the C-shaped block 11a. Hexagon socket screws 11d are located within these rubber pads 11b through stepped holes 11c. Mounting holes 11e are provided on the sides of both the C-shaped block 11a and the mounting platform 6a, corresponding to the hexagon socket screws 11d. The rubber pads cushion the edges of the mounting platform, offsetting vibrations from the damping platform and preventing contact between the damping platform and the inner wall of the liquid supply chamber, which could transfer vibrations to the cabinet.

[0026] Furthermore, the lower end of the open end of the C-shaped block 11a is integrally formed with an upwardly curved positioning plate 11f, and a slide groove 11g is provided at the bottom of the mounting platform 6a to cooperate with the positioning plate 11f. The cooperation between the positioning plate and the slide groove can prevent the C-shaped block and the hexagon socket screw from loosening and sliding outward due to vibration.

[0027] In this embodiment, the liquid supply assembly 9 includes a liquid supply pipe 9a connected to the lower end of the water tank 7. This pipe is connected to an external dry mist device. A centrifugal pump 9b and an air tank 9c are sequentially mounted on this pipe. The centrifugal pump pumps water from the water tank along the pipe to the external dry mist device for spraying. The air tank is mounted on the pipe on one side of the centrifugal pump to direct water to the centrifugal pump.

[0028] In this embodiment, the outer surfaces of the water tank 7 and liquid supply assembly 9 are covered with an insulation layer 12. This insulation layer 12 comprises insulation foam 12a wrapped around the surface of the liquid supply assembly 9, a heating tape 12b wound between the insulation foam 12a and the liquid supply assembly 9, and a layer of insulating tin foil wrapped around the insulation foam 12a. When the device is used in cold northern environments, the heating tape heats the water tank and pipes, insulating them and preventing them from freezing. The insulation foam and tin foil layer reduce heat loss and improve insulation effectiveness.

[0029] During operation, first, fill the water tank with enough water through the water inlet pipe, turn on the corresponding switch on the electronic control component, close and lock the cabinet door, open the valves on the exhaust pipe and the air inlet pipe in turn to deliver clean gas into the electronic control room for ventilation. After the ventilation is completed, turn on the external power switch to supply power to the electronic control component, so that each component starts working.

[0030] The above embodiments are preferred implementation methods of the present invention and are only used to facilitate the explanation of the present invention. They are not intended to limit the present invention in any form. Any person with ordinary knowledge in the technical field can, without departing from the scope of the technical features of the present invention, make partial changes or modifications to the technical contents disclosed in the present invention and make equivalent embodiments without departing from the technical features of the present invention. These modifications still fall within the scope of the technical features of the present invention.

Claims

1. A positive pressure explosion-proof dry mist electric controlled constant pressure liquid supply device, comprising a cabinet (1), characterized in that: The cabinet (1) is divided into an electric control room (3) and a liquid supply room (4) by a horizontal partition (2), and a plurality of wire holes are provided on the horizontal partition (2); a positive pressure component (5) is provided on the side wall of the electric control room (3); A shock-absorbing platform (6) is provided at the bottom of the liquid supply chamber (4), a water tank (7) is provided on the shock-absorbing platform (6), the upper end of the water tank (7) is connected to a water inlet pipe (8) that is connected to the outside of the cabinet (1), and the lower end of the water tank (7) is connected to a liquid supply assembly (9) that is connected to an external dry mist device; a through hole that matches the water inlet pipe (8) is provided on the side wall of the liquid supply chamber (4), and a shock-absorbing rubber sleeve (10) is provided in the through hole.

2. A positive pressure explosion-proof dry mist electric controlled constant pressure liquid supply device according to claim 1, characterized in that: The shock-absorbing platform (6) comprises a mounting platform (6a) arranged in the liquid supply chamber (4), and a buffer module (11) is provided on the side walls around the mounting platform (6a), and the gap between the buffer module (11) and the inner side wall of the liquid supply chamber (4) is 0.5-1 cm; At least three support columns (6b) are evenly distributed at the bottom of the installation platform (6a), and the free ends of the support columns (6b) are provided with step rings (6c); positioning cylinders (6d) corresponding one to one with the support columns (6b) are provided at the bottom of the liquid supply chamber (4), and a shock-absorbing spring (6e) matching the step ring (6c) is provided in each positioning cylinder (6d).

3. A positive pressure explosion-proof dry mist electric controlled constant pressure liquid supply device according to claim 2, characterized in that: The buffer module (11) includes a C-shaped block (11a) arranged on the end of the mounting platform (6a), and a plurality of rubber pads (11b) are evenly distributed on the C-shaped block (11a); a hexagon socket screw (11d) is provided in the rubber pad (11b) through a step hole (11c), and mounting holes (11e) that match the hexagon socket screw (11d) are provided on the side surfaces of the C-shaped block (11a) and the mounting platform (6a).

4. A positive pressure explosion-proof dry mist electrically controlled constant pressure liquid supply device according to claim 3, characterized in that: A positioning plate (11f) bent upward is integrally formed at the lower end of the open end of the C-shaped block (11a), and a sliding groove (11g) matching the positioning plate (11f) is provided at the bottom of the installation platform (6a).

5. The positive pressure explosion-proof dry mist electrically controlled constant pressure liquid supply device according to claim 1, characterized in that: The liquid supply assembly (9) comprises a liquid supply pipe (9a) connected to the lower end of the water tank (7), wherein the liquid supply pipe (9a) is connected to an external dry mist device; a centrifugal pump (9b) and a gas tank (9c) are sequentially arranged on the liquid supply pipe (9a).

6. The positive pressure explosion-proof dry mist electrically controlled constant pressure liquid supply device according to claim 1, characterized in that: The outer surfaces of the water tank (7) and the liquid supply component (9) are coated with a thermal insulation layer (12); the thermal insulation layer (12) comprises thermal insulation cotton (12a) coated on the surface of the liquid supply component (9), a heating tape (12b) is wound between the thermal insulation cotton (12a) and the liquid supply component (9), and a thermal insulation tin foil layer is provided outside the thermal insulation cotton (12a).

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