Pressure container storage tank breather valve device

Abstract

The utility model discloses a breather valve device of a pressure vessel storage tank, which comprises an integrally arranged fire-retardant breather valve body and a mounting groove arranged in the center of the inside of the fire-retardant breather valve body, a fire-retardant core is arranged in the mounting groove, one side of the fire-retardant core is provided with a plug-in mounting port which is used for mounting and dismounting and is arranged on the fire-retardant breather valve body, and a supporting framework is arranged outside the fire-retardant core. The inserting opening is formed in the side face of the breather valve body, the fire retardant core and the supporting framework are integrally installed, the handle is installed at the end of the support, the fire retardant core can be pulled out and inserted, static electricity eliminating treatment is adopted for the installation position of the fire retardant core, the possibility that sparks or static electricity are generated in the pulling and inserting process is avoided, the operation of frequently and integrally disassembling the breather valve is avoided, and the work efficiency is improved. The fire retardant core can be cleaned through one-man operation, and the safety of the storage tank breather valve is greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of breathing valve, concretely relates to a pressure vessel storage tank breathing valve device. BACKGROUND

[0002] The principle and action of the explosion-proof fire-resistant breathing valve is to use spring limiting or gravity valve plate to determine the opening or closing of the breathing valve according to the positive and negative pressure of the container, so as to maintain the pressure balance of the storage tank and ensure the safety of the container. Specifically, when the container bears positive pressure, the breathing valve opens to release the positive pressure by discharging gas; when the container bears negative pressure, the breathing valve opens to release the negative pressure by inhaling gas. This design not only ensures that the storage tank will not be damaged under overpressure or vacuum conditions, but also reduces the volatilization loss of the medium in the tank.

[0003] The working principle of the explosion-proof fire-resistant breathing valve is to add the core element of the explosion-proof fire-resistant core in the breathing channel of the breathing valve. While ensuring the pressure balance of the storage tank, it prevents external flames from entering and ensures the safety performance of the storage tank. When the internal pressure of the container exceeds the set value, the breathing valve opens, and the gas is discharged through the explosion-proof fire-resistant core. In this process, the explosion-proof fire-resistant core can prevent fire from entering the storage tank and avoid explosion accidents.

[0004] Coal tar deep processing is to obtain light oil, crude phenol, industrial naphthalene, washing oil, phenol oil, pitch, anthracene oil and other products through dehydration, distillation, fraction washing and decomposition, rectification and other processes. The storage of raw materials and product materials is carried out by using atmospheric vertical storage tanks, and explosion-proof fire-resistant breathing valves are arranged on the top of the tanks. Due to the volatile crystallization characteristics of industrial naphthalene and other products, it is found that the fire-resistant core of the breathing valve is blocked during use. Once the breathing valve is blocked, it will not work normally. In order to ensure the normal work of the breathing valve, the breathing valve needs to be disassembled, the middle body bolt 10 in the breathing valve is unscrewed to realize the disassembly of the valve body (as shown in Figure 3 ), and then the fire-resistant core is taken out for cleaning and reinstallation. This not only increases the labor workload of workers, but also has safety hazards in the overall disassembly operation of the tank top breathing valve. UTILITY MODEL CONTENTS

[0005] In order to solve the above problems, the utility model provides a pressure vessel storage tank breathing valve device.

[0006] The utility model is realized through the following technical schemes:

[0007] A pressure vessel storage tank breathing valve device, comprising an integrally arranged fire-resistant breathing valve body and a centrally arranged mounting groove in the fire-resistant breathing valve body, wherein the mounting groove is provided with a fire-resistant core, one side of the fire-resistant core is provided with a plug-in port for disassembly and opening in the fire-resistant breathing valve body, and a support framework is arranged outside the fire-resistant core.

[0008] Further, the support framework comprises an annular ring arranged outside the fireproof core, and a support frame supporting the fireproof core is arranged at the bottom of the annular ring.

[0009] Further, the upper and lower parts of the annular ring are sleeved with rubber sleeves closely fitted with the upper and lower ends of the mounting groove.

[0010] Further, a handle extending into the insertion port is fixed outside the annular ring.

[0011] Further, a cover plate is arranged at the outer end of the insertion port, and the cover plate is connected and fixed by a plurality of fixing bolts.

[0012] Further, the handle at the rear end of the fireproof core is arranged in a flat and close manner with the cover plate after the fireproof core is mounted.

[0013] Compared with the prior art, the beneficial effects of the present application are as follows: the insertion port is arranged on the side surface of the valve body of the breather valve, the fireproof core and the support framework are integrally mounted, the support frame is provided with a handle, the fireproof core can be extracted and inserted, the mounting position of the fireproof core is treated by eliminating static electricity, the possibility of generating sparks or static electricity during extraction and insertion is avoided, the operation of frequently disassembling the breather valve as a whole is avoided, single-person operation for cleaning the fireproof core is realized, and the safety of the storage tank breather valve is greatly improved. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 is a structural schematic diagram of the present application;

[0015] Figure 2 is a schematic diagram of the fireproof core mounting structure of the present application;

[0016] Figure 3 is a schematic diagram of the prior art of the present application;

[0017] In the figure: fireproof breather valve body 1, mounting groove 101, insertion port 2, cover plate 3, fixing bolt 4, fireproof core 5, handle 6, annular ring 7, support frame 8, rubber sleeve 9, middle body bolt 10. DETAILED DESCRIPTION

[0018] The present application will be further described in detail below in combination with the drawings and specific embodiments:

[0019] For example, Figure 1As shown in the figure, a pressure vessel storage tank breather valve device includes a fire barrier breather valve body 1 and a mounting groove 101 arranged therein, the mounting groove 101 is used for mounting a fire barrier core 5, the mounting groove 101 is provided with the fire barrier core 5, one side of the fire barrier core 5 is provided with a plug-in port 2 opened in the fire barrier breather valve body 1 for dismounting, the plug-in port 2 has the same width as the inner diameter of the mounting groove 101, which ensures the plug-in of the fire barrier core 5, and the fire barrier core 5 is externally provided with a support skeleton for placing and supporting the fire barrier core 5, which is more convenient to take.

[0020] As shown in the figure, Figure 2 The support skeleton includes an annular ring 7 arranged outside the fire barrier core 5, the annular ring 7 is a metal ring for containing the fire barrier core 5, and the bottom of the annular ring 7 is provided with a support frame 8 for supporting the fire barrier core 5.

[0021] As shown in the figure, Figure 2 The upper and lower parts of the annular ring 7 are provided with rubber sleeves 9 tightly fitted with the upper and lower ends of the mounting groove 101, the rubber sleeves 9 not only play a sealing role, but also can avoid the safety risk caused by sparks or static electricity during the plug-in process, which greatly ensures the safety of replacing the fire barrier core 5.

[0022] As shown in the figure, Figure 1 The outer side of the annular ring 7 is fixed with a handle 6 extending into the plug-in port 2.

[0023] As shown in the figure, Figure 1 The outer end of the plug-in port 2 is provided with a cover plate 3, the cover plate 3 is connected and fixed by a plurality of fixed bolts 4, the fixed bolts 4 adopt butterfly nuts, which can realize single-person easy operation.

[0024] As shown in the figure, Figure 1 After the installation of the fire barrier core 5, the handle 6 at the rear end is flushly arranged with the cover plate 3, so that the movement of the support skeleton and the fire barrier core 5 in the mounting groove 101 of the breather valve can be avoided by limiting the handle 6, and the accuracy of the position of the fire barrier core 5 is ensured.

[0025] The implementation principle of the pressure vessel storage tank breather valve device of the embodiment of the application is as follows:

[0026] When the fire barrier core 5 inside the breather valve on the top of the vertical storage tank needs to be replaced due to blockage by naphthalene and other products, only the cover plate 3 of the side insertion opening 2 of the fire barrier breather valve body 1 needs to be opened, the fixing bolts 4 are loosened, the cover plate 3 is removed, the handle 6 is pulled, the fire barrier core 5 inside the support framework is quickly taken out from the insertion opening 2, the naphthalene oil adhered to the upper part of the fire barrier core 5 is cleaned, after cleaning, the fire barrier core 5 is placed inside the annular ring 7 of the support framework, supported by the support frame 8 at the bottom, after the cleaned fire barrier core 5 is placed, the annular ring 7 is inserted and pushed into the installation groove 101 of the fire barrier breather valve body 1 along the insertion opening 2, the rotating annular ring 7 is adjusted so that the handle 6 is flush with the tail of the insertion opening 2, after adjustment, the cover plate 3 is reassembled, thus avoiding the previous operation of frequently disassembling the breather valve as a whole, realizing single-person operation for cleaning the fire barrier core, and the whole process of cleaning without disassembling the breather valve as a whole saves time and effort, and the operation safety is greatly improved.

[0027] The basic principle, main features and advantages of the utility model are shown and described above. It should be understood by those skilled in the art that the utility model is not limited by the above-mentioned embodiments, the above-mentioned embodiments and the description in the specification are only to illustrate the principle of the utility model, various changes and improvements can be made to the utility model without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed. The scope of protection of the utility model is defined by the appended claims and their equivalents.

Claims

1. A breather valve device for a pressure vessel storage tank, characterized in that: The device includes an integrally formed flame arrester breather valve body (1) and an internal central mounting groove (101). A flame arrester core (5) is provided in the mounting groove (101). The flame arrester core (5) has an insertion port (2) on one side for disassembly and assembly and is opened in the flame arrester breather valve body (1). A support frame is provided on the outside of the flame arrester core (5).

2. The breather valve device for a pressure vessel storage tank according to claim 1, characterized in that: The support frame includes an annular ring (7) disposed on the outside of the flame arrester core (5), and a support frame (8) for supporting the flame arrester core (5) is fixed at the bottom of the annular ring (7).

3. The breather valve device for a pressure vessel storage tank according to claim 2, characterized in that: The annular ring (7) is fitted with rubber sleeves (9) that fit tightly against the upper and lower ends of the mounting groove (101).

4. The breather valve device for a pressure vessel storage tank according to claim 3, characterized in that: A handle (6) extending into the insertion port (2) is fixed to the outside of the annular ring (7).

5. A breather valve device for a pressure vessel storage tank according to claim 4, characterized in that: The outer end of the insertion port (2) is provided with a cover plate (3), which is connected and fixed by multiple fixing bolts (4).

6. A breather valve device for a pressure vessel storage tank according to claim 2, characterized in that: After the flame arrestor core (5) is installed, its rear handle (6) is flush with and fits against the cover plate (3).

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