Novel explosion-proof positive pressure controller

Abstract

The utility model discloses a novel explosion-proof positive pressure controller, which relates to the technical field of positive pressure controllers and comprises a shell. An explosion-proof box body bottom plate is arranged at the bottom of the shell; an embedded cover plate is mounted on a bottom plate of the explosion-proof box body in a matched manner; the embedded cover plate is fixedly mounted through an anti-explosion fixing cap; the bottom plate of the explosion-proof box body is provided with a plurality of round holes which are convenient for the explosion-proof keys to penetrate and install. An explosion-proof window convenient for observation is also formed in the middle of the bottom plate of the explosion-proof box body; according to the device, all functions of original equipment are integrated into one circuit board, a 3.5-inch liquid crystal display screen is adopted for display, a 163 * 163 * 120MM explosion-proof shell is adopted as a shell, and explosion-proof small keys are adopted as explosion-proof keys; and a display embedded in the explosion-proof window is used for displaying the working state more intuitively.

Description

Technical Field

[0001] The utility model specifically relates to the technical field of positive pressure controllers, in particular to a novel explosion-proof positive pressure controller. Background Art

[0002] With the rapid development of petrochemical, metal smelting, chemical pharmaceutical and other industries, explosion-proof positive pressure cabinets are increasingly used in system control. How to use positive pressure explosion-proof controllers correctly in explosive gas hazards. Since electrical equipment will inevitably generate sparks or hot surfaces when working, once they meet with explosive gas mixtures on site, explosions will occur, directly endangering the property and life safety of users.

[0003] The current positive pressure controller uses a relatively primitive digital pressure gauge, with complex other electrical components and complex line connections to achieve the entire requirement; the processing technology is cumbersome, wasting a lot of manpower and material resources, and the current traditional equipment is large in size, which is not conducive to use in special small explosion-proof places; and the current equipment has many structures, so when it is used, the degree of automation of the equipment is low, and the real-time status of the equipment cannot be seen at a glance, which will cause the labor intensity of the staff;

[0004] After searching, Chinese patent CN202220488985.7 discloses an integrated explosion-proof positive pressure controller; it includes a shell arranged on one side of the electrical cabinet, and an air pipe, a valve assembly and a monitoring unit are arranged inside the shell; one end of the air pipe is connected to the external air source through the air pipe interface, and the other end is connected to the electrical cabinet; the valve assembly includes an air intake pressure reducing valve, a pressure control valve and a quick air exchange valve connected to the air pipe; the quick air exchange valve is connected to the gas output pipeline; the monitoring unit includes a pressure gauge and an explosion-proof pressure differential switch;

[0005] The structure in the above patent can effectively realize the connection between multiple components when used, but there are too many structures in the above patent. When installing, each related component needs to be connected, which makes the lines or pipelines more complicated. In this way, more manpower is consumed during the maintenance of logistics. In addition, the size of the above patent is large, so it is not convenient to install when used in a small space.

[0006] In view of the above situation, we provide a new type of explosion-proof positive pressure controller. In this device, the shell is set to 163*163*120MM, which is convenient for installation in a small space; and the internal components of this device are concentrated on the integrated circuit board, so that more lines are not needed for connection, which saves a lot of space and is convenient for later maintenance. The display in this device can more intuitively understand the working status, and the working status display is intuitive and clear. Utility Model Content

[0007] The purpose of the utility model is to provide a novel explosion-proof positive pressure controller. In the device, the internal components are concentrated on an integrated circuit board, so that more lines are not needed for connection, which saves a lot of space and is convenient for later maintenance. The working status can be more intuitively understood through the display in the device, and the working status display is intuitive and clear; so as to solve the problems of the above-mentioned background technology.

[0008] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0009] A novel explosion-proof positive pressure controller comprises a shell; an explosion-proof box bottom plate is arranged at the bottom of the shell; an inlaid cover plate is installed in cooperation with the explosion-proof box bottom plate; the inlaid cover plate is fixedly installed by an explosion-proof fixing cap; a plurality of round holes are opened on the explosion-proof box bottom plate for convenient penetration and installation of explosion-proof buttons;

[0010] As a further technical solution of the utility model, an explosion-proof window for easy observation is provided in the middle of the bottom plate of the explosion-proof box.

[0011] As a further technical solution of the utility model, a plurality of explosion-proof glands for fixing cables are fixedly installed on the shell; wherein an integrated circuit board is fixedly installed inside the shell.

[0012] As a further technical solution of the utility model, the explosion-proof key is a small key; the explosion-proof key is connected to the integrated circuit board.

[0013] As a further technical solution of the utility model, the size of the shell is 163*163*120MM; an explosion-proof box cover is installed at one end of the shell away from the bottom plate of the explosion-proof box.

[0014] As a further technical solution of the utility model, the explosion-proof window is embedded and fixed with a display; the display is a 3.5-inch liquid crystal display.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] This utility model integrates all the functions of the original equipment into a circuit board, uses a 3.5-inch LCD display, the outer shell uses a 163*163*120MM explosion-proof shell, and the explosion-proof button uses a small explosion-proof button, which can effectively ensure that the controller can be used in a small space;

[0017] The utility model has a smaller volume and saves more space due to the integrated functions of the controller. Since the controller adopts an explosion-proof setting, it can be openly installed during installation, and the display embedded in the explosion-proof window can more intuitively display the working status. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is the front view of the utility model.

[0019] Figure 2 This utility model Figure 1 Side view of.

[0020] In the figure: 1-explosion-proof fixing cap, 2-explosion-proof box bottom plate, 3-explosion-proof window, 4-explosion-proof button, 5-inlaid cover plate, 6-explosion-proof gland, 7-explosion-proof box cover. DETAILED DESCRIPTION

[0021] 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.

[0022] See also Figure 1-2 In the embodiment of the utility model, a novel explosion-proof positive pressure controller comprises a shell; an explosion-proof box bottom plate 2 is arranged at the bottom of the shell; an inlaid cover plate 5 is installed in cooperation with the explosion-proof box bottom plate 2; the inlaid cover plate 5 is fixedly installed by an explosion-proof fixing cap 1; a plurality of round holes are opened on the explosion-proof box bottom plate 2 for convenient installation of explosion-proof buttons 4;

[0023] An explosion-proof viewing window 3 for easy observation is also provided in the middle of the explosion-proof box bottom plate 2.

[0024] More specifically, the shell is also fixedly mounted with a plurality of explosion-proof glands 6 for fixing cables; wherein an integrated circuit board is fixedly mounted inside the shell.

[0025] By adopting the above technical solution, this device integrates all the functions of the original equipment into a circuit board, uses a 3.5-inch LCD display, the outer shell uses a 163*163*120MM explosion-proof shell, and the explosion-proof button 4 uses a small explosion-proof button, which can effectively ensure that the controller can be used in a small space;

[0026] The explosion-proof button 4 is a small button; the explosion-proof button 4 is connected to the integrated circuit board.

[0027] In this embodiment, the size of the shell is 163*163*120MM; an explosion-proof box cover 7 is installed at one end of the shell away from the explosion-proof box bottom plate 2;

[0028] The explosion-proof window 3 is embedded and fixed with the display; the display is a 3.5-inch liquid crystal display screen.

[0029] By adopting the above technical solution, the controller has integrated functions, a smaller volume and saves more space. Since the controller adopts an explosion-proof setting, it can be openly installed during installation, and the display embedded in the explosion-proof window 3 can more intuitively display the working status.

[0030] The working principle of the utility model is: the device integrates all the functions of the original equipment into a circuit board, the display adopts a 3.5-inch LCD screen, the shell adopts a 163*163*120MM explosion-proof shell, and the explosion-proof button 4 adopts a small explosion-proof button, which can effectively ensure that the controller can be used in a small space;

[0031] Since the controller is functionally integrated, it has a smaller size and saves more space. Since the controller adopts an explosion-proof setting, it can be exposed during installation, and the display embedded in the explosion-proof window 3 can display the working status more intuitively.

[0032] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0033] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A new type of explosion-proof positive pressure controller, characterized by: The invention comprises a shell; an explosion-proof box bottom plate (2) is arranged at the bottom of the shell; an inlaid cover plate (5) is installed in cooperation with the explosion-proof box bottom plate (2); the inlaid cover plate (5) is fixedly installed by an explosion-proof fixing cap (1); a plurality of circular holes are opened on the explosion-proof box bottom plate (2) for convenient installation of explosion-proof buttons (4); An explosion-proof viewing window (3) for easy observation is also provided in the middle of the explosion-proof box bottom plate (2).

2. A novel explosion-proof positive pressure controller according to claim 1, characterized in that: The shell is also fixedly mounted with a plurality of explosion-proof glands (6) for fixing cables; wherein an integrated circuit board is fixedly mounted inside the shell.

3. A novel explosion-proof positive pressure controller according to claim 1, characterized in that: The explosion-proof key (4) is a small key; the explosion-proof key (4) is connected to the integrated circuit board.

4. A novel explosion-proof positive pressure controller according to claim 3, characterized in that: The size of the shell is 163*163*120MM; an explosion-proof box cover (7) is installed at one end of the shell away from the explosion-proof box bottom plate (2).

5. A novel explosion-proof positive pressure controller according to claim 4, characterized in that: The explosion-proof window (3) is embedded and fixed with the display; the display is a 3.5-inch liquid crystal display.

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