Environment-friendly stoichiometric tank

Abstract

The utility model relates to the technical field of metering tanks, and discloses an environment-friendly stoichiometric tank which comprises a stoichiometric tank body, and a gas conveying pipe is welded to the top of the stoichiometric tank body. A flange plate at one end of the connecting pipe is mounted on the flange plate at the top of the gas conveying pipe through a bolt piece; the metering valve is mounted on the connecting pipe; the sealing cover assembly is arranged at the flange plate connecting position of the gas conveying pipe and the connecting pipe and used for forming a sealing cavity at the flange plate connecting position of the gas conveying pipe and the connecting pipe, and when gas leakage occurs at the flange plate connecting position of the gas conveying pipe and the connecting pipe, leaked gas can be discharged into the sealing cavity; the gas detection sensor can detect leaked gas more effectively, once the leaked gas is detected, an alarm arranged on the gas detection sensor can give an alarm to remind a worker of overhauling and maintaining, and adverse effects on environmental protection caused by continuous gas leakage are avoided.

Description

Technical Field

[0001] This utility model relates to the field of metering tank technology, specifically an environmentally friendly chemical metering tank. Background Technology

[0002] In the process of producing high-end display optoelectronic materials and fine chemicals, various gases such as nitrogen, oxygen and argon are required. Metering tanks can be used to store and transport these gases, ensuring precise control of gas flow, avoiding waste and maintaining production efficiency.

[0003] A chemical metering tank is a device used to store and manage liquid or gaseous chemicals. Its main purpose is to ensure that the amount of substances used in chemical processing is accurate and controllable, thereby reducing environmental pollution and waste.

[0004] Currently, at the connection between the metering tank and the gas pipeline, long-term use can cause the sealing rings between the flanges to gradually age, which may lead to slow gas leakage. These small leaks, which are not easily detected, will continue to affect the surrounding environment if they are not detected and dealt with in time, which is detrimental to environmental protection. Therefore, we have proposed an environmentally friendly chemical metering tank to solve the above-mentioned problems. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides an environmentally friendly chemical metering tank, which solves the problem that long-term use at the connection between the metering tank and the gas pipeline can lead to the gradual aging of the sealing ring between the flanges, potentially resulting in slow gas leakage. Such minute leaks, which are not easily detected, will continue to impact the surrounding environment if not detected and addressed in time, which is detrimental to environmental protection.

[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: an environmentally friendly chemical metering tank, comprising a chemical metering tank body, wherein a gas supply pipe is welded to the top of the chemical metering tank body;

[0007] A connecting pipe, one end of which has a flange mounted on the flange at the top of the gas transmission pipe by bolts;

[0008] A metering valve is installed on the connecting pipe;

[0009] A sealing cover assembly is provided at the flange connection between the gas supply pipe and the connecting pipe to form a sealing cavity at the flange connection.

[0010] A gas detection sensor, mounted on the sealing cover assembly, is used for real-time detection of leaked gas within its cavity.

[0011] Preferably, the sealing cover assembly includes a first semi-annular sleeve and a second semi-annular sleeve arranged symmetrically in the upper and lower parts. A first locking member arranged symmetrically is installed between the symmetrically arranged first semi-annular sleeve and the symmetrically arranged second semi-annular sleeve. A connecting block is welded to the surface of the first semi-annular sleeve and the second semi-annular sleeve. A second locking member is installed between the corresponding upper and lower connecting blocks.

[0012] Preferably, the gas detection sensor is mounted on one of the first semi-annular housings, and the detection end of the gas detection sensor extends through the outside of the first semi-annular housing and into the inside of the first semi-annular housing.

[0013] Preferably, a first sealing gasket is provided between the two sets of first semi-annular sleeves and the two sets of second semi-annular sleeves, and a second sealing gasket is provided on the side of the upper and lower corresponding first semi-annular sleeves and second semi-annular sleeves that are close to each other.

[0014] Preferably, when the two sets of first semi-annular sleeves or the two sets of second semi-annular sleeves are fitted together, the inner ring diameter is smaller than the flange diameter, and the outer ring diameter is larger than the flange diameter.

[0015] Preferably, both the first locking member and the second locking member are composed of bolts and nuts.

[0016] Preferably, the outer surface of the first semi-annular sleeve is threadedly connected to a positioning rod through a threaded hole, and multiple sets of positioning rods on the first semi-annular sleeve are equidistantly distributed. When two sets of the first semi-annular sleeves are fitted together, the multiple sets of positioning rods are arranged in a ring at equal intervals. Beneficial effects

[0017] This invention provides an environmentally friendly chemical metering container. Compared with the prior art, it has the following advantages:

[0018] When a leak occurs at the flange connection between the gas supply pipe and the connecting pipe of this environmentally friendly chemical metering tank, the leaked gas will be discharged into the sealed cavity, allowing the gas detection sensor to detect the leak more effectively. Once a leak is detected, the alarm equipped on the gas detection sensor will sound an alarm, reminding staff to carry out inspection and maintenance to avoid the adverse environmental impact of continuous gas leakage. Attached Figure Description

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

[0020] Figure 2 This is a schematic diagram of the structure of the plate sealing cover assembly of this utility model;

[0021] Figure 3 This is an exploded view of the sealing cover assembly of this utility model;

[0022] Figure 4 This is a schematic diagram of the connecting components such as the positioning rod and the first semi-annular sleeve of this utility model.

[0023] In the diagram: 101, main body of the chemical metering vessel; 102, gas supply pipe; 103, connecting pipe; 104, metering valve; 105, gas detection sensor; 106, positioning rod; 2, sealing cover assembly; 201, first semi-annular sleeve; 202, second semi-annular sleeve; 203, first sealing gasket; 204, second sealing gasket; 205, first locking element; 206, second locking element; 207, connecting block. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] like Figure 1-4 As shown:

[0026] An environmentally friendly chemical metering tank includes a chemical metering tank body 101, and a gas supply pipe 102 is welded to the top of the chemical metering tank body 101.

[0027] The flange at one end of the connecting pipe 103 is mounted on the flange at the top of the gas transmission pipe 102 by bolts.

[0028] Metering valve 104 is installed on connecting pipe 103;

[0029] The sealing cover assembly 2 is located at the flange connection between the gas supply pipe 102 and the connecting pipe 103, and is used to form a sealing cavity at the flange connection.

[0030] The sealing cover assembly 2 includes a first semi-annular sleeve 201 and a second semi-annular sleeve 202 arranged symmetrically in the upper and lower parts. A first locking member 205 arranged symmetrically is installed between the first semi-annular sleeve 201 and the second semi-annular sleeve 202. A connecting block 207 is welded to the surface of the first semi-annular sleeve 201 and the second semi-annular sleeve 202. A second locking member 206 is installed between the upper and lower corresponding connecting blocks 207.

[0031] A gas detection sensor 105 is mounted on the sealing cover assembly 2 for real-time detection of leaked gas in its cavity. The gas detection sensor 105 is mounted on one of the first semi-annular sleeves 201, and the detection end of the gas detection sensor 105 extends through the outside of the first semi-annular sleeve 201 and into the inside of the first semi-annular sleeve 201.

[0032] A first sealing gasket 203 is provided between the two sets of first semi-annular sleeves 201 and the two sets of second semi-annular sleeves 202, and a second sealing gasket 204 is provided on the side of the first semi-annular sleeves 201 and the second semi-annular sleeves 202 that are close to each other.

[0033] When two sets of first semi-annular sleeves 201 or two sets of second semi-annular sleeves 202 are fitted together, their inner ring diameter is smaller than the flange diameter and their outer ring diameter is larger than the flange diameter.

[0034] Both the first locking element 205 and the second locking element 206 are composed of bolts and nuts.

[0035] In this implementation plan: When using the environmentally friendly chemical metering tank, the sealing cover assembly 2 needs to be installed at the connection between the gas supply pipe 102 and the connecting pipe 103 with its own flange to form a sealed cavity;

[0036] The specific installation steps are as follows: First, fit the two sets of first semi-annular sleeves 201 together. The connecting pipe 103 is located between the two sets of first semi-annular sleeves 201. Both ends of the first semi-annular sleeves 201 have first circular holes. The first locking element 205 consists of bolts and nuts. The bolts pass through the corresponding first circular holes at one end of the two sets of first semi-annular sleeves 201 in sequence, and the nuts are screwed onto the bolts. By continuously screwing the nuts, the corresponding fit and locking of the two sets of first semi-annular sleeves 201 are achieved.

[0037] Meanwhile, each of the two sets of first semi-annular sleeves 201 has a mounting groove on its side that is close to each other, which is adapted to the first sealing gasket 203. The first sealing gasket 203 can be placed in these mounting grooves, with a portion of the first sealing gasket 203 protruding from the mounting groove. When the two sets of first semi-annular sleeves 201 are locked by the first locking member 205, they will fit tightly together, and the first sealing gasket 203 will be compressed. By setting the first sealing gasket 203, the sealing performance of the connection between the two sets of first semi-annular sleeves 201 can be enhanced.

[0038] Similarly, two sets of second semi-annular sleeves 202 are installed on both sides of the gas pipeline 102. The two sets of second semi-annular sleeves 202 are also connected and locked by the first locking member 205. The two ends of the second semi-annular sleeves 202 also have the same first circular holes as the first semi-annular sleeves 201, so that the first locking member 205 can be connected and locked. The side of the two sets of second semi-annular sleeves 202 that are close to each other also has an installation groove for placing the first sealing gasket 203. The two sets of second semi-annular sleeves 202 are docked and locked by a similar installation method to the first semi-annular sleeves 201.

[0039] like Figure 3 As shown: The two sets of first semi-annular sleeves 201 and the two sets of second semi-annular sleeves 202 are locked by the first locking member 205 to form annular shells. These sleeves are respectively fitted on the outside of the connecting pipe 103 and the gas transmission pipe 102. One end of the annular shell is designed as a sealing structure, and the other end is an open structure. The height of the inner shell is less than the height of the outer shell.

[0040] During assembly, the first semi-annular shell 201 and the second semi-annular shell 202 are joined together to form a complete annular shell. At this time, the bottom edge surface of the inner shell of the annular shell formed by the two sets of first semi-annular shells 201 should be in contact with the top of the flange of the connecting pipe 103, and the bottom edge surface of the inner shell of the annular shell formed by the two sets of second semi-annular shells 202 should be in contact with the bottom of the flange of the gas transmission pipe 102. In addition, the outer edges of the annular shells formed by the first semi-annular shells 201 and the second semi-annular shells 202 should be in contact with each other.

[0041] The upper and lower annular shells are locked using the second locking element 206. The surfaces of the first semi-annular shell 201 and the second semi-annular shell 202 are both welded with connecting blocks 207. The upper and lower corresponding connecting blocks 207 are provided with second circular holes. The second locking element 206 consists of bolts and nuts. The bolts pass through the corresponding second circular holes in sequence, and the nuts are screwed onto the bolts. By continuously screwing the nuts, the corresponding parts of the upper and lower annular shells can be fitted and locked.

[0042] The annular shell formed by the first semi-annular sleeve 201 and the annular shell formed by the second semi-annular sleeve 202 are provided with an installation groove on the side that is close to each other, and the second sealing gasket 204 is placed in the groove; the setting of the second sealing gasket 204 enhances the sealing between the outer shells of the two sets of annular shells, and also improves the sealing performance between the inner shell and the flange.

[0043] The annular shell formed by the first semi-annular sleeve 201 and another set of first semi-annular sleeves 201, together with the flange that cooperates with the gas transmission pipe 102 and the connecting pipe 103, constitutes a sealed cavity; when a leak occurs between the gas transmission pipe 102 and the connecting pipe 103, the leaked gas can be discharged into this sealed cavity; a gas detection sensor 105 is installed on the first semi-annular sleeve 201, and its detection end is located in the sealed cavity, which can monitor the gas status in the sealed cavity in real time.

[0044] One end of the connecting pipe 103 can be connected to a gas supply device. Gas is transported through the connecting pipe 103 to the gas transmission pipe 102 and finally discharged into the main body 101 of the chemical metering tank. The metering valve 104 installed on the connecting pipe 103 is used to control the gas flow rate. When a leak occurs at the flange connection between the gas transmission pipe 102 and the connecting pipe 103, the leaked gas will be discharged into the sealed cavity, allowing the gas detection sensor 105 to detect the leaked gas more effectively. Once a leak is detected, the alarm equipped on the gas detection sensor 105 will sound an alarm to remind personnel to carry out inspection and maintenance, so as to avoid the adverse environmental impact of continuous gas leakage.

[0045] In addition, the sealing structure formed by the upper and lower sealing cavities also solves the problem that a small amount of gas leakage may cause the gas detection sensor 105 to be inaccurate.

[0046] It should be noted that the gas detection sensor 105 can be the MIG219N online gas detection alarm.

[0047] Meanwhile, the contents of the chemical metering tank body 101, gas transmission pipe 102, connecting pipe 103 and metering valve 104 that are not described in detail in this specification are all prior art known to those skilled in the art. For specific functions and structures, please refer to patent document CN221915148U.

[0048] It should be noted that: at the connection points of the gas conveying pipes in this device, a sealing cover assembly 2 can be installed, and the dimensions of the first semi-annular sleeve 201 and the second semi-annular sleeve 202 on the sealing cover assembly 2 can be flexibly designed according to actual usage requirements.

[0049] Furthermore;

[0050] In an optional embodiment, the outer surface of the first semi-annular sleeve 201 is threadedly connected to a positioning rod 106 through a threaded hole, and multiple sets of positioning rods 106 on the first semi-annular sleeve 201 are equidistantly distributed. When two sets of first semi-annular sleeves 201 are fitted together, the multiple sets of positioning rods 106 are arranged in a ring at equal intervals.

[0051] In this embodiment: On the annular shell formed by the first semi-annular sleeve 201, equidistantly distributed positioning rods 106 are installed; After the first semi-annular sleeve 201 and the second semi-annular sleeve 202 are installed, one end of the positioning rod 106 corresponds to the edge side of the flange; By screwing the positioning rod 106, one end of the positioning rod 106 can be tightly attached to the edge surface of the flange. Multiple sets of positioning rods 106 work together to limit the annular shell, ensure the stability of the annular shell on the flange, prevent displacement, and avoid misalignment between the inner shell of the annular shell and the flange surface, thus preventing gaps.

[0052] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

Claims

1. An environmentally friendly chemical metering vessel, comprising a chemical metering vessel body (101), characterized in that, A gas supply pipe (102) is welded to the top of the main body (101) of the chemical metering vessel. The flange at one end of the connecting pipe (103) is mounted on the flange at the top of the gas transmission pipe (102) by bolts; A metering valve (104) is installed on the connecting pipe (103); A sealing cover assembly (2) is provided at the flange connection between the gas supply pipe (102) and the connecting pipe (103) to form a sealing cavity at the flange connection. A gas detection sensor (105) is provided on the sealing cover assembly (2) for real-time detection of leaked gas in its cavity.

2. The environmentally friendly chemical metering tank according to claim 1, characterized in that: The sealing cover assembly (2) includes a first semi-annular shell (201) and a second semi-annular shell (202) arranged symmetrically in the upper and lower parts. A first locking member (205) arranged symmetrically is installed between the first semi-annular shell (201) and the second semi-annular shell (202). A connecting block (207) is welded to the surface of the first semi-annular shell (201) and the second semi-annular shell (202). A second locking member (206) is installed between the upper and lower corresponding connecting blocks (207).

3. The environmentally friendly chemical metering tank according to claim 2, characterized in that: The gas detection sensor (105) is installed on one of the first semi-annular housings (201), and the detection end of the gas detection sensor (105) extends through the outside of the first semi-annular housing (201) and into the inside of the first semi-annular housing (201).

4. The environmentally friendly chemical metering tank according to claim 2, characterized in that: A first sealing gasket (203) is provided between the two sets of first semi-annular sleeves (201) and the two sets of second semi-annular sleeves (202), and a second sealing gasket (204) is provided on the side of the upper and lower corresponding first semi-annular sleeves (201) and second semi-annular sleeves (202) that are close to each other.

5. The environmentally friendly chemical metering tank according to claim 2, characterized in that: When the two sets of first semi-annular sleeves (201) or the two sets of second semi-annular sleeves (202) are fitted together, the inner ring diameter is smaller than the flange diameter and the outer ring diameter is larger than the flange diameter.

6. The environmentally friendly chemical metering tank according to claim 2, characterized in that: Both the first locking member (205) and the second locking member (206) are composed of bolts and nuts.

7. The environmentally friendly chemical metering tank according to claim 2, characterized in that: The outer surface of the first semi-annular sleeve (201) is threaded with a positioning rod (106) through a threaded hole. Multiple sets of positioning rods (106) on the first semi-annular sleeve (201) are equidistantly distributed. When two sets of the first semi-annular sleeves (201) are fitted together, the multiple sets of positioning rods (106) are arranged in an annular shape with equal spacing.

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