Automatic control device for centralized gas supply of bottled gas

Abstract

The utility model discloses an automatic control device for centralized gas supply of bottled gas. The automatic control device comprises a confluence mother pipe, a mineralization kettle and an electric control cabinet, a plurality of manual stop valves are arranged and distributed on the confluence mother pipe; each manual stop valve is connected with a pressure reducing valve through a gas hose; each pressure reducing valve is used for being connected into a liquid CO2 gas cylinder; one end of the confluence mother pipe is sealed, and the other end of the confluence mother pipe is communicated with the mineralization kettle through an automatic gas transmission assembly; a CO2 concentration detector and a pressure transmitter are respectively mounted on the mineralization kettle; the electric control cabinet is electrically connected with the automatic gas transmission assembly, the CO2 concentration detector and the pressure transmitter. A plurality of gas cylinders can be connected into the device at the same time, frequent replacement of the gas cylinders is avoided, the working efficiency is improved, and the labor intensity of workers is reduced. Gas of all the gas cylinders can be collected in the confluence mother pipe, and unified and continuous gas supply is achieved. And automatic gas inlet control is realized through an electric automatic control system, and relative constancy of CO2 gas concentration and pressure in the kettle is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of bottled gas supply and distribution, in particular to an automatic control device for centralized supply of bottled gas. Background Art

[0002] In order to promote carbon reduction and emission reduction and contribute to the realization of the country's "dual carbon" goal, the technical research and development of using CO2 mineralized aerated concrete products is currently underway. During the research and development stage, bottled liquid CO2 is used to provide the CO2 gas required for mineralized aerated concrete products. Each bottle is 40L and weighs about 18KG; and each autoclave requires about 350KG of CO2 gas for one steam curing cycle, that is, about 20 bottles of liquid CO2 need to be consumed. In the process of steam curing and mineralization gas supply, the existing technology is as follows: the gas supply interface is single, and the staff needs to replace a bottle of liquid CO2 every 10 minutes, which is time-consuming and laborious, and cannot achieve continuous gas supply. Changing the gas cylinder increases the safety risk of gas leakage. Frequent operation will reduce the service life of the equipment, and automatic control of gas intake cannot be achieved, and the relative constancy of the CO2 gas concentration and pressure in the reaction kettle cannot be guaranteed.

[0003] 2. Disadvantages of the existing technology:

[0004] 1. The gas supply interface is single, and a bottle of liquid CO2 needs to be replaced every 10 minutes, resulting in frequent interruption of gas supply and affecting the mineralization effect of the product.

[0005] 2. Frequent replacement of gas cylinders is time-consuming and laborious, increasing the labor intensity of the staff.

[0006] 3. Frequent replacement of gas cylinders increases the safety risk of gas leakage.

[0007] 4. Frequent replacement of gas cylinders exacerbates the wear of the connecting equipment and reduces the service life of the equipment.

[0008] 5. Automatic control of gas intake cannot be achieved, and the relative constancy of the CO2 gas concentration and pressure in the mineralization kettle cannot be guaranteed. Content of the Utility Model

[0009] In view of the technical problems existing in the prior art, the utility model provides an automatic control device for centralized gas supply of bottled gases, which can connect multiple gas cylinders to the device at the same time, eliminate the frequent replacement of gas cylinders, improve work efficiency, and reduce the labor intensity of staff; all the valves of the gas cylinders can be opened simultaneously, and the gases are collected in the manifold header, and unified gas supply is realized through the gas transmission pipeline, ensuring the continuity of steam curing and mineralization gas supply, reducing the risk of gas leakage caused by frequent replacement of gas cylinders, and reducing operations can extend the service life of the equipment; a CO2 gas concentration and pressure transmitter are installed on the mineralization kettle, and the CO2 gas concentration and pressure in the kettle are monitored through the control program of the upper computer in the electric control cabinet, and the intake electromagnetic valve on the gas transmission pipeline is automatically controlled to open and close according to the requirements of the process set value, realizing automatic control of gas intake, ensuring the relative constancy of the CO2 gas concentration and pressure in the mineralization kettle, and improving product quality.

[0010] The utility model is realized through the following technical solutions:

[0011] An automatic control device for centralized gas supply of bottled gases includes a manifold header, a mineralization kettle and an electric control cabinet; wherein: a plurality of manual stop valves are arranged and distributed on the manifold header; each of the manual stop valves is connected with a pressure reducing valve through a gas hose; each of the pressure reducing valves is used for connecting a liquid CO2 gas cylinder; one end of the manifold header is sealed, and the other end is communicated with the mineralization kettle through an automatic gas transmission component; a CO2 concentration detector and a pressure transmitter are respectively installed on the mineralization kettle; the electric control cabinet is electrically connected with the automatic gas transmission component, the CO2 concentration detector and the pressure transmitter.

[0012] Further as an improvement of the technical solution of the utility model, the automatic gas transmission component includes a manual gas source master valve, a gas transmission pipeline and an intake electromagnetic valve; the manifold header is communicated with the mineralization kettle through the manual gas source master valve and the gas transmission pipeline; the intake electromagnetic valve is installed on the gas transmission pipeline; the intake electromagnetic valve is electrically connected with the electric control cabinet.

[0013] Further as an improvement of the technical solution of the utility model, a spring safety valve is installed at the sealed end of the manifold header.

[0014] Further as an improvement of the technical solution of the utility model, a pressure gauge is installed at the sealed end of the manifold header.

[0015] The beneficial effects of the utility model:

[0016] In the prior art, the gas supply interface is single, and the gas cylinders need to be frequently replaced, which is time-consuming and laborious, with a high labor intensity. It affects the mineralization effect of the product, exacerbates equipment damage, poses potential safety hazards, and cannot achieve automatic control of gas intake. Compared with the existing technology, the present utility model provides an automatic control device for centralized gas supply of bottled gases, which can connect multiple gas cylinders to this device simultaneously, eliminating the need for frequent gas cylinder replacement, improving work efficiency, and reducing the labor intensity of the staff; it can open the valves of all gas cylinders simultaneously, collect the gases in the manifold pipe, and achieve unified and continuous gas supply to ensure the continuity of gas supply for steam curing and mineralization; it reduces the risk of gas leakage caused by frequent gas cylinder replacement; it reduces equipment operation and extends the service life of the equipment; it realizes automatic control of gas intake through an electrical automatic control system to ensure the relative constancy of the CO2 gas concentration and pressure in the autoclave. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 FIG. is a schematic diagram of the overall structure of an automatic control device for centralized gas supply of bottled gases according to the present utility model.

[0018] In the figure: 1 - pressure reducing valve, 2 - gas hose, 3 - manual stop valve, 4 - manifold pipe, 5 - manual main gas valve, 6 - gas transmission pipeline, 7 - spring safety valve, 8 - pressure gauge, 9 - intake solenoid valve, 10 - CO2 concentration detector, 11 - pressure transmitter, 12 - mineralization autoclave, 13 - electric control cabinet. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] The present utility model will be described in detail below in conjunction with the drawings and specific embodiments. Here, the schematic embodiments and descriptions of the present utility model are used to explain the present utility model, but not to limit the present utility model.

[0020] It should be noted that all directional indications (such as up, down, left, right, front, back, upper end, lower end, top, bottom...) in the embodiments of the present utility model are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the drawings). If the specific posture changes, the directional indications will also change accordingly.

[0021] In the present utility model, unless otherwise clearly defined and limited, the term "connection" should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meaning of the above terms in the present utility model can be understood according to specific circumstances.

[0022] In addition, in the present utility model, descriptions such as "first", "second", etc. are only for descriptive purposes and should not be construed as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. Additionally, the technical solutions between various embodiments may be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present utility model.

[0023] The present utility model will be further described in detail below with reference to the accompanying drawings.

[0024] Referring to Figure 1 , the present utility model relates to an automatic control device for centralized gas supply of bottled gases, including a manifold 4, a mineralization kettle 12, and an electric control cabinet 13; wherein: a plurality of manual stop valves 3 are arranged and distributed on the manifold 4; each of the manual stop valves 3 is connected to a pressure reducing valve 1 through a gas hose 2; each of the pressure reducing valves 1 is used to connect to a liquid CO2 gas cylinder; one end of the manifold 4 is sealed, and the other end is communicated with the mineralization kettle 12 through an automatic gas transmission assembly; a CO2 concentration detector 10 and a pressure transmitter 11 are respectively installed on the mineralization kettle 12; the electric control cabinet 13 is electrically connected to the automatic gas transmission assembly, the CO2 concentration detector 10, and the pressure transmitter 11.

[0025] Specifically, in the solution of this embodiment, the automatic gas transmission assembly includes a manual main gas valve 5, a gas transmission pipeline 6, and an intake electromagnetic valve 9; the manifold 4 is communicated with the mineralization kettle 12 through the manual main gas valve 5 and the gas transmission pipeline 6; the intake electromagnetic valve 9 is installed on the gas transmission pipeline 6; the intake electromagnetic valve 9 is electrically connected to the electric control cabinet 13.

[0026] Specifically, in the solution of this embodiment, a spring safety valve 7 is installed at the sealed end of the manifold 4.

[0027] Specifically, in the solution of this embodiment, a pressure gauge 8 is installed at the sealed end of the manifold 4.

[0028] It should be noted that the pressure reducing valve 1 is used to be directly connected to the liquid CO2 gas cylinder to play the role of pressure reduction and pressure stabilization; the gas hose 2 (high-pressure hose) is the connecting pipeline between the pressure reducing valve 1 and the manifold 4. Utilizing the flexibility of the high-pressure hose, it is convenient for the pressure reducing valve 1 to be connected to the CO2 gas cylinder; the manifold 4 is to collect the gases from all CO2 gas cylinders together for unified and continuous gas supply; the manual main gas valve 5 is the overall control of the gas source. When the intake electromagnetic valve 9 malfunctions or other emergencies occur, the gas source can be quickly cut off; the gas transmission pipeline 6 is the gas transmission pipeline connecting the manual main gas valve 5 and the CO2 mineralization reactor; the spring safety valve 7 is when the pressure reducing valve of a certain CO2 gas cylinder fails or for other reasons causes the pressure in the manifold 4 to be too high, the spring safety valve 7 acts to automatically relieve pressure, playing a safety guarantee role; the pressure gauge 8 is to monitor the pressure in the manifold 4; the intake electromagnetic valve 9 is to achieve automatic control of intake through the upper computer control program; the CO2 concentration detector 10 is to detect the CO2 gas concentration in the mineralization kettle 12 in real time; the pressure transmitter 11 is to detect the pressure in the mineralization kettle 12; the electric control cabinet 13 is to collect electrical data signals through the upper computer and issue working instructions to achieve automatic control.

[0029] Example:

[0030] Such as Figure 1As shown in the figure, the automatic control device for centralized gas supply of bottled gas mainly consists of a pressure reducing valve 1, a gas hose 2, a manual stop valve 3, a manifold 4, a manual main gas valve 5, a gas transmission pipeline 6, a spring safety valve 7, a pressure gauge 8, an intake electromagnetic valve 9, a CO2 concentration detector 10, a pressure transmitter 11, a mineralization kettle 12, an electric control cabinet 13, etc. The specific implementation steps are as follows: First, check whether the manual main gas valve 5 and each manual stop valve 3 are in the closed state, and check whether the spring safety valve 7, pressure gauge 8, intake electromagnetic valve 9, concentration detector 10, pressure transmitter 11, mineralization kettle 12, electric control cabinet 13, etc. are in normal working condition; then connect each liquid CO2 gas cylinder to the pressure reducing valve 1 of this device one by one, open the valve of the gas cylinder body one by one, and at the same time adjust the pressure reducing valve 1 to set to the required gas pressure; open the manual stop valve 3 of this device one by one, and the gas of each gas cylinder flows into the manifold 4 through the gas hose 2; at this time, if the spring safety valve 7 does not act, it means that the gas pressure is stable and the pressure reducing valve 1 and other equipment are operating normally; if the spring safety valve 7 acts to relieve pressure, it means that the pressure reducing valve 1 or other equipment is abnormal, and the valve of the gas cylinder body should be immediately closed, and the gas supply operation can only be started after inspection and repair; observe the parameter of the pressure gauge 8 of this device, if the pressure is normal, open the manual main gas valve 5, the electric control cabinet 13 switches to the automatic control state, the intake electromagnetic valve 9 is opened, and gas is supplied to the mineralization kettle 12 through the gas transmission pipeline 6. The CO2 concentration and pressure in the mineralization kettle 12 gradually increase. When the CO2 concentration and pressure in the mineralization kettle 12 reach the upper limit setting value of the upper computer control program in the electric control cabinet 13, the automatic control system will automatically close the intake electromagnetic valve 9. When the CO2 concentration and pressure in the mineralization kettle 12 are lower than the lower limit setting value, the automatic control system will automatically open the intake electromagnetic valve 9, so as to ensure that the CO2 concentration and pressure in the mineralization kettle 12 are relatively constant, and the equipment enters the curing reaction stage.

[0031] The original technology has a single gas supply interface, requires frequent gas cylinder replacement, is time-consuming and laborious, has a high labor intensity, affects the mineralization effect of the product, exacerbates equipment damage, has potential safety hazards, and cannot achieve automatic control of intake. Compared with the existing technology, the beneficial effects of the present utility model are as follows:

[0032] The present utility model provides an automatic control device for centralized gas supply of bottled gas, which can connect multiple gas cylinders to this device at the same time, eliminate the need for frequent gas cylinder replacement, improve work efficiency, and reduce the labor intensity of staff; it can open the valves of all gas cylinders at the same time, collect the gas in the manifold, and achieve unified and continuous gas supply to ensure the continuity of gas supply for steam curing and mineralization; reduce the risk of gas leakage caused by frequent gas cylinder replacement; reduce equipment operation and extend the service life of the equipment; achieve automatic control of intake through an electrical automatic control system to ensure the relative constancy of the CO2 gas concentration and pressure in the kettle.

[0033] The above has introduced in detail the technical solutions provided by the embodiments of the present utility model. Specific examples are used herein to elaborate on the principles and implementation manners of the embodiments of the present utility model. The description of the above embodiments is only applicable to helping understand the principles of the embodiments of the present utility model. At the same time, for those of ordinary skill in the art, according to the embodiments of the present utility model, there will be changes in the specific implementation manners and application scopes. In summary, the content of this specification should not be construed as a limitation on the present utility model.

Claims

1. An automatic control device for centralized gas supply of bottled gas, comprising a main manifold, a mineralization kettle and an electric control cabinet; characterized in that: A plurality of manual stop valves are arranged and distributed on the said busbar; each of the said manual stop valves is connected to a pressure reducing valve via a gas hose; each of the said pressure reducing valves is used to connect to a liquid CO2 cylinder; one end of the said busbar is sealed, and the other end is connected to the said mineralization kettle via an automatic gas transmission component; a CO2 concentration detector and a pressure transmitter are respectively installed on the said mineralization kettle; the said electric control cabinet is respectively electrically connected to the said automatic gas transmission component, the CO2 concentration detector and the pressure transmitter.

2. The automatic control device for centralized bottled gas supply according to claim 1 is characterized in that: The automatic gas supply assembly includes a manual gas source main valve, a gas supply pipeline and an air intake solenoid valve; the main confluence pipe is connected to the mineralization kettle through the manual gas source main valve and the gas supply pipeline; the air intake solenoid valve is installed on the gas supply pipeline; the air intake solenoid valve is electrically connected to the electric control cabinet.

3. The automatic control device for centralized bottled gas supply according to claim 1 is characterized in that: A spring safety valve is installed at the sealing end of the busbar.

4. The automatic control device for centralized bottled gas supply according to claim 1, characterized in that: A pressure gauge is installed at the sealed end of the busbar.

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