Protective box for explosion-proof fluorescent oxygen analyzer

Abstract

The utility model provides a kind of protective box for anti-explosion fluorescent oxygen analyzer, it is related to protective box technical field, including explosion-proof box main body, analyzer main body and explosion-proof valve, explosion-proof box main body includes installation shell, two door main bodies are equipped with in the side of installation shell, the bottom of installation shell is fixedly installed with base.The utility model is measured when oxygen by inductor, explosion-proof box combines explosion-proof valve and other components to form protective system, explosion-proof box is isolated by heat-insulating blanket explosion high temperature radiation, reduce external temperature and reduce internal heat accumulation, delay equipment damage, iron wire net enhances the strength of box body, fixed heat-insulating blanket, inhibit the splashing of debris, disperse flame energy to hinder deflagration when explosion, rear explosion-proof valve is through movable plate when explosion, instantaneously release overpressure, prevent box body to break, reduce explosive power and keep structure intact, effectively isolate dangerous area, reduce personnel and equipment safety risk.

Description

Technical Field

[0001] This utility model relates to the field of protective box technology, and in particular to a protective box for an explosion-proof fluorescent oxygen analyzer. Background Technology

[0002] When existing fluorescence oxygen analyzers detect oxygen, the mixture of combustible gas and oxygen reaches the explosion limit. If an ignition source is encountered, the ignition source can be an internal circuit fault, an electric spark generated by component friction, or electrostatic discharge. If combustible gas is present in the test environment, the high concentration of oxygen will intensify the reaction. In addition, if the equipment itself is not designed to be explosion-proof, an explosion may occur during the test.

[0003] Existing protective cases for fluorescence oxygen analyzers are dedicated enclosures designed to protect the analyzers. They can withstand interference from external factors such as dust, moisture, vibration, and impact, ensuring stable operation of the instrument. They are mostly made of metal or high-strength engineering plastics and have sealing, shockproof, and corrosion-resistant properties. They are suitable for complex environments such as industrial sites and outdoor testing, providing a safe and reliable protective space for the analyzers.

[0004] However, most of the protective cases used for existing fluorescence oxygen analyzers do not have explosion-proof functions and cannot be used in hazardous environments containing flammable gases and dust. When flammable and explosive substances in the environment mix with oxygen to the explosive limit, sparks from the circuits inside the case and friction between components can easily cause an explosion. Furthermore, the equipment has not passed explosion-proof certification and cannot meet the safety requirements of high-risk scenarios such as chemical and petroleum industries. This poses serious safety hazards and may lead to equipment damage and personal injury. Utility Model Content

[0005] The purpose of this invention is to provide a protective enclosure for an explosion-proof fluorescent oxygen analyzer to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: including an explosion-proof box body, an analyzer body, and an explosion-proof valve;

[0007] The explosion-proof box body includes a mounting shell, with two doors installed on one side of the mounting shell, a base fixedly installed at the bottom of the mounting shell, and an explosion-proof valve inserted into the back of the explosion-proof box body.

[0008] The bottom of the analyzer body is connected to a power supply box, and the analyzer body and the power supply box are fixedly fitted with a mounting shell and a base.

[0009] The explosion-proof box body includes an insulation blanket, one side of which is covered with wire mesh, and one side of which is fixedly installed with a metal plate. The insulation blanket, wire mesh and metal plate are all inserted into the sandwich between the two door bodies, the mounting shell and the base.

[0010] The explosion-proof valve includes a housing, which is fixedly inserted into the back of the explosion-proof box body. A filter screen is fixedly installed inside the housing, and a movable plate is movably installed at one end of the housing.

[0011] Preferably, a set of opening and closing components is inserted into one side of each of the two door bodies. Each set of opening and closing components includes a connecting rod inside. A fixing plate is fixedly installed on the outer wall of each connecting rod, and one side of each fixing plate corresponds to a door body for fixed installation.

[0012] Preferably, each connecting rod has two connecting shafts movably sleeved at its upper and lower ends, and a fixing plate is fixedly installed on one side of each connecting shaft, and each fixing plate is fixedly installed on the outer wall of the mounting shell.

[0013] Preferably, a sensor body is inserted into the bottom of the analyzer body, and a wire is connected to the top of the sensor body, with the wire extending and passing through the interior of the base.

[0014] Preferably, an air-injection assembly is fixedly installed on the back of the mounting housing. The air-injection assembly includes an air pump, and one side of the air pump is connected to an air extraction pipe and an air delivery pipe.

[0015] Preferably, one end of the extraction pipe is inserted into the top of the nitrogen cylinder, and one end of the gas supply pipe is inserted into two air diffusers. The two air diffusers are inserted into the interior of the mounting housing, and the air pump and the nitrogen cylinder are both fixedly installed on the back of the mounting housing.

[0016] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0017] 1. In this utility model, when oxygen is measured by a sensor, the explosion-proof box, together with components such as the explosion-proof valve, forms a protective system. The heat insulation blanket inside the explosion-proof box blocks the high-temperature radiation of the explosion, reduces the external temperature and reduces the accumulation of internal heat, thus delaying equipment damage. The wire mesh strengthens the box and fixes the heat insulation blanket, suppressing the splashing of fragments and dispersing the flame energy to prevent deflagration during an explosion. The explosion-proof valve on the rear side releases overpressure instantly through a movable plate during an explosion, preventing the box from breaking, reducing the explosive force and maintaining structural integrity, effectively isolating dangerous areas, and reducing the safety risks to personnel and equipment.

[0018] 2. In this utility model, the inert gas in the nitrogen cylinder is drawn by the air pump of the air filling component and injected into the explosion-proof box body through the gas supply pipe. The air is replaced to reduce the oxygen concentration to below the explosion limit, suppressing deflagration from the source. At the same time, the flow of nitrogen absorbs heat, which, together with the heat insulation blanket, blocks external heat and enhances cooling. The wire mesh hinders the spread of flame in the low-oxygen environment, forming a double explosion suppression with nitrogen. When the box is overpressurized, the explosion-proof valve is linked to the positive pressure environment to quickly release pressure, and nitrogen is continuously replenished to suppress secondary deflagration. When it is safe, the door body can be opened and closed through the linkage component for easy operation, and the outer latch locks the box body when not in operation or during an explosion, improving the flexibility and safety of explosion protection. Attached Figure Description

[0019] Figure 1 This is a three-dimensional view of the protective box for an explosion-proof fluorescent oxygen analyzer proposed in this utility model;

[0020] Figure 2 A side perspective view of the protective box for an explosion-proof fluorescent oxygen analyzer is provided for this utility model;

[0021] Figure 3 This is a perspective view of the explosion-proof box body in the protective box for an explosion-proof fluorescent oxygen analyzer proposed in this utility model;

[0022] Figure 4 This is a three-dimensional view of the heat insulation blanket in the protective box for an explosion-proof fluorescent oxygen analyzer proposed in this utility model;

[0023] Figure 5 This is a perspective view of the opening and closing components in the protective box for an explosion-proof fluorescent oxygen analyzer proposed in this utility model;

[0024] Figure 6 This is a three-dimensional view of the explosion-proof valve in the protective box for an explosion-proof fluorescent oxygen analyzer proposed in this utility model;

[0025] Figure 7 This is a three-dimensional view of the air filling component in the protective box for an explosion-proof fluorescent oxygen analyzer proposed in this utility model.

[0026] Legend: 1. Explosion-proof box body; 101. Door body; 102. Mounting shell; 103. Insulation blanket; 104. Wire mesh; 105. Metal plate; 106. Base; 2. Opening and closing assembly; 201. Fixing plate; 202. Connecting rod; 203. Connecting shaft; 3. Sensor body; 4. Analyzer body; 5. Explosion-proof valve; 501. Outer shell; 502. Movable plate; 503. Filter screen; 6. Air filling assembly; 601. Air pump; 602. Exhaust pipe; 603. Air supply pipe; 604. Nitrogen cylinder; 605. Ventilation duct. Detailed Implementation

[0027] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0028] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0029] Example 1: Refer to Figure 3 , Figure 4 as well as Figure 6 As shown: In this embodiment, a protective case for an explosion-proof fluorescent oxygen analyzer is included, comprising an explosion-proof case body 1, an analyzer body 4, and an explosion-proof valve 5. The explosion-proof case body 1 includes a mounting shell 102, with two door bodies 101 installed on one side of the mounting shell 102. A base 106 is fixedly installed on the bottom of the mounting shell 102. The explosion-proof valve 5 is inserted into the back of the explosion-proof case body 1. A power supply box is inserted into the bottom of the analyzer body 4, and the mounting shell 102 and the base 106 are fixedly fitted onto the outer sides of the analyzer body 4 and the power supply box. The main body 1 of the box includes a heat insulation blanket 103, one side of which is covered with a wire mesh 104. A metal plate 105 is fixedly installed on one side of the wire mesh 104. The heat insulation blanket 103, the wire mesh 104 and the metal plate 105 are all inserted into the interlayer of the two door bodies 101, the mounting shell 102 and the base 106. The explosion-proof valve 5 includes a shell 501. The shell 501 is fixedly inserted into the back of the explosion-proof box body 1. A filter screen 503 is fixedly installed inside the shell 501. A movable plate 502 is movably installed at one end of the shell 501.

[0030] The overall effect of Embodiment 1 is as follows: When oxygen measurement is performed through the sensor body 3 connected to the outside of the analyzer body 4, explosion-proof treatment is carried out through the explosion-proof box body 1 and the explosion-proof valve 5 to ensure personnel safety. The heat insulation blanket 103 and wire mesh 104 installed inside the explosion-proof box body 1 block the high-temperature radiation of an explosion, reduce the external temperature of the box, prevent the ignition of surrounding flammable materials, and reduce internal heat accumulation, delaying overheating damage to the equipment. The wire mesh 104 enhances the structural strength of the box and serves to fix the heat insulation blanket 103. In the event of an explosion, it also... It can suppress the flying of fragments during an explosion, disperse the flame energy, and hinder the spread of deflagration, thus playing a role in suppressing the explosion. By installing an explosion-proof valve 5 on the rear side of the explosion-proof box body 1, when an explosion occurs, the movable plate 502 inside the explosion-proof valve 5 can be opened and closed instantaneously to release the pressure. This allows the analyzer body 4 to release the internal overpressure at the moment of the explosion inside the explosion-proof box body 1, preventing the box from rupturing due to a sudden increase in pressure. Controllable pressure relief reduces the explosive force and avoids deflagration from turning into detonation. At the same time, the box structure remains intact after pressure relief, effectively isolating the dangerous area, reducing the risk of secondary injury, and ensuring the safety of personnel and equipment.

[0031] Example 2: According to Figure 1 - Figure 7As shown: A set of opening / closing components 2 is inserted into one side of each of the two door bodies 101. Each set of opening / closing components 2 includes a connecting rod 202. A fixing plate 201 is fixedly installed on the outer wall of each connecting rod 202, and one side of each fixing plate 201 corresponds to one door body 101. Two connecting shafts 203 are movably sleeved at the upper and lower ends of each connecting rod 202. A fixing plate 201 is fixedly installed on one side of each connecting shaft 203, and each fixing plate 201 is fixedly installed on the outer wall of the mounting shell 102. A sensor is inserted into the bottom of the analyzer body 4. The sensor body 3 has a wire connected to its top, which extends and passes through the interior of the base 106. An air filling assembly 6 is fixedly installed on the back of the mounting shell 102. The air filling assembly 6 includes a pump 601. One side of the pump 601 is connected to an exhaust pipe 602 and an air supply pipe 603. One end of the exhaust pipe 602 is inserted into the top of a nitrogen cylinder 604. One end of the air supply pipe 603 is inserted into two air diffusers 605. The two air diffusers 605 pass through and are fixed inside the mounting shell 102. The pump 601 and the nitrogen cylinder 604 are both fixedly installed on the back of the mounting shell 102.

[0032] The overall effect of Embodiment 2 is as follows: By adding the air filling component 6, the inert gas in the nitrogen cylinder 604 is extracted through the air extraction pipe 602 connected to the air pump 601, and then the nitrogen is delivered into the explosion-proof box body 1 through the air supply pipe 603. The inert gas can replace the air in the box, reducing the oxygen concentration to below the explosion limit, thus suppressing the formation of deflagration conditions from the source. At the same time, the flow of nitrogen can absorb heat in the box, and together with the heat insulation blanket 103, it can block external heat radiation, enhance the cooling effect, and avoid equipment failure or gas expansion and overpressure caused by high temperature. The wire mesh 104 can further hinder the spread of flame in the low-oxygen environment created by nitrogen, forming a dual explosion suppression mechanism with the dilution effect of nitrogen. When the pressure in the box rises suddenly due to accidental energy triggering, the explosion-proof valve 5 is linked to the positive pressure environment formed by nitrogen filling, which can more quickly balance the internal and external pressure. During depressurization, nitrogen continues to flow. The supplementary mechanism can suppress secondary deflagration, and the four components work together to achieve three-dimensional protection of explosion suppression, heat insulation, fire prevention, and pressure relief, significantly improving the inherent safety of the explosion-proof box. When the analyzer body 4 is relatively safe, the two sets of door bodies 101 on the outside of the explosion-proof box body 1 can be linked to open and close the assembly 2, causing the connecting rod 202 to drive the door body 101 to rotate inside the two sets of connecting shafts 203, so that the door body 101 can be opened and closed, allowing personnel to operate the analyzer body 4 inside the explosion-proof box body 1. This makes the explosion-proof box body 1 more flexible in protecting and using the analyzer body 4. The latches on the outside of the two sets of door bodies 101 can be used to lock the explosion-proof box body 1 when the analyzer body 4 is not being operated. They can also effectively lock the explosion-proof box body 1 in the event of an explosion inside the explosion-proof box body 1 if the analyzer body 4 explodes.

[0033] Working principle: The explosion-proof enclosure body 1 and its internal components form a comprehensive protection system integrating prevention, isolation, release, and operation through multi-dimensional collaboration, ensuring the safe operation of the analyzer body 4 and the sensor body 3. Under normal conditions, the two sets of doors 101 on the outside of the explosion-proof enclosure body 1 can be flexibly opened and closed via the connecting rod 202 and the connecting shaft 203, facilitating personnel operation of the analyzer body 4. After operation, the outer latches lock the enclosure, ensuring both daily sealing and structural integrity in the event of an explosion. The air filling assembly 6, through the air pump 601, ... The extraction pipe 602 draws inert gas from the nitrogen cylinder 604 and continuously injects it into the chamber through the gas supply pipe 603, replacing the air and reducing the oxygen concentration below the explosion limit, thus eliminating the conditions for deflagration at the source. At the same time, the flowing nitrogen absorbs the heat generated by the equipment operation, forming a two-way temperature control system with the inner wall insulation blanket 103 blocking external high-temperature radiation. This prevents malfunctions caused by high temperatures or gas expansion and overpressure. The internal wire mesh 104 not only fixes the insulation blanket 103 and enhances the structural strength of the chamber, but also disperses flame energy and suppresses debris during an explosion through its mesh structure. The explosion-proof enclosure, combined with a low-oxygen environment, forms a dual explosion-proof barrier of physical isolation and chemical dilution. When the pressure inside the enclosure suddenly increases due to an accident, the movable plate 502 inside the rear explosion-proof valve 5 opens and closes instantly, quickly releasing overpressure gas to prevent the enclosure from rupturing. During the depressurization process, the air-filling component 6 continuously replenishes nitrogen to maintain positive pressure inside the enclosure, suppressing backflow of external combustible gases and secondary deflagration, ensuring that the enclosure remains effectively isolated from dangerous areas after depressurization. The linkage of each component is as follows: the air-filling component 6 prioritizes establishing a low-oxygen positive pressure environment to prevent deflagration; the heat insulation blanket 103 and the wire mesh 104 work together to block heat and strengthen the explosion-proof structure; the explosion-proof valve 5 accurately releases and reduces the explosive force when the pressure is abnormal; and the door system ensures operational flexibility in a safe state and strengthens the sealing and locking through the latch in dangerous situations. This three-dimensional protection mechanism of active explosion suppression, temperature control insulation, physical fire prevention, intelligent release, and flexible operation enables the explosion-proof enclosure to achieve an organic unity of inherent safety and ease of use in high-risk environments, effectively ensuring personnel safety and reliable equipment operation, forming a complete closed-loop protection system from risk prevention to emergency response.

[0034] By following the instructions above, you can complete the use of the protective case for the explosion-proof fluorescent oxygen analyzer.

[0035] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A protective case for an explosion-proof fluorescent oxygen analyzer, characterized in that: It includes the explosion-proof enclosure body (1), the analyzer body (4), and the explosion-proof valve (5); The explosion-proof box body (1) includes a mounting shell (102), two door bodies (101) are installed on one side of the mounting shell (102), a base (106) is fixedly installed at the bottom of the mounting shell (102), and an explosion-proof valve (5) is inserted into the back of the explosion-proof box body (1). The bottom of the analyzer body (4) is connected to a power supply box, and the analyzer body (4) and the power supply box are fixedly fitted with a mounting shell (102) and a base (106); The explosion-proof box body (1) includes a heat insulation blanket (103), one side of which is covered with wire mesh (104), and one side of which is fixedly installed with a metal plate (105). The heat insulation blanket (103), wire mesh (104) and metal plate (105) are all inserted into the interlayer of the two door bodies (101), the mounting shell (102) and the base (106). The explosion-proof valve (5) includes a housing (501), which is fixedly inserted into the back of the explosion-proof box body (1). A filter screen (503) is fixedly installed inside the housing (501), and a movable plate (502) is movably installed at one end of the housing (501).

2. The protective case for the explosion-proof fluorescent oxygen analyzer according to claim 1, characterized in that: A set of opening and closing components (2) is inserted into one side of each of the two door bodies (101). Each set of opening and closing components (2) includes a connecting rod (202). A fixing plate (201) is fixedly installed on the outer wall of each connecting rod (202), and one side of each fixing plate (201) corresponds to a door body (101) for fixed installation.

3. The protective case for the explosion-proof fluorescent oxygen analyzer according to claim 2, characterized in that: Each of the connecting rods (202) has two connecting shafts (203) movably sleeved at its upper and lower ends. Each of the connecting shafts (203) has a fixing plate (201) fixedly installed on one side, and each fixing plate (201) is fixedly installed on the outer wall of the mounting shell (102).

4. The protective case for the explosion-proof fluorescent oxygen analyzer according to claim 1, characterized in that: The analyzer body (4) has a sensor body (3) inserted into its bottom. A wire is connected to the top of the sensor body (3) and extends through the base (106).

5. The protective case for the explosion-proof fluorescent oxygen analyzer according to claim 1, characterized in that: An air-injection assembly (6) is fixedly installed on the back of the mounting housing (102). The air-injection assembly (6) includes an air pump (601), and one side of the air pump (601) is connected to an air extraction pipe (602) and an air delivery pipe (603).

6. The protective case for the explosion-proof fluorescent oxygen analyzer according to claim 5, characterized in that: One end of the extraction pipe (602) is inserted into the top of the nitrogen cylinder (604), and one end of the gas supply pipe (603) is inserted into two air diffusers (605). The two air diffusers (605) are inserted into the interior of the fixed mounting shell (102). The air pump (601) and the nitrogen cylinder (604) are both fixedly installed on the back of the mounting shell (102).

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