Automatic gas distribution control device of high-pressure combined gas cylinder for sintering furnace

Abstract

The utility model discloses an automatic gas distribution control device of a high-pressure combined gas cylinder for a sintering furnace, which relates to the technical field of high-pressure gas delivery of sintering furnaces, and comprises a sintering furnace body, a plurality of high-pressure gas cylinders, a gas distribution control device and a gas distribution control device, gas conveying pipes are arranged at the tops of the high-pressure gas cylinders, and electromagnetic valves are arranged on the gas conveying pipes; the gas conveying pipes at the tops of the plurality of high-pressure gas cylinders are communicated with the gas distribution pipe; a manual valve is arranged at one end of the gas distribution pipe, and the other end of the gas distribution pipe communicates with the sintering furnace body; a first pressure sensor is arranged on the gas distribution pipe; the device further comprises a programmable controller which is used for opening or closing the electromagnetic valve. The device can automatically control gas output of the high-pressure gas cylinder, manual intervention is reduced, timeliness of gas supply is improved, insufficient gas supply to the sintering furnace and low-pressure alarm are avoided, continuity of gas supply is ensured, the sintering furnace runs more stably, and working efficiency of the sintering furnace and sintering quality of products are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of high-pressure gas transportation for sintering furnaces, in particular to an automatic gas distribution control device for a high-pressure combined gas cylinder for a sintering furnace. Background Art

[0002] During the sintering process of hard materials (such as ceramic materials, cemented carbide, metal materials, etc.), process gases are often required. Some sintering processes also require the delivery of gas at a certain pressure. Some hard material sintering equipment and gas use points such as debugging and testing do not have gas storage stations. Small gas cylinders are usually used to transport gas from the gas production plant to the use point. The sintering furnace often requires multiple bottles of gas in a sintering process. The high-pressure gas is released and then used as low-pressure gas.

[0003] In the related art, the gas switch valves of high-pressure gas cylinders are all manual valves, and the process of switching the gas cylinders is all done manually, which requires manual valve switching during operation. In addition, the sintering process takes a long time and requires real-time manual inspection. The problem of insufficient gas supply may occur at any time and requires manual processing, which greatly increases the labor intensity of workers. Furthermore, manual operation is difficult to be timely, and often the sintering furnace has to wait until the process gas low pressure alarm appears before operating, which seriously affects the sintering quality of the product. At the same time, it is impossible to accurately record the remaining gas volume of each gas cylinder. It is difficult to use the minimum gas volume of each gas cylinder by relying on manual estimation and memory, which leads to an increase in the number of inflation and transportation times, resulting in energy waste. Utility Model Content

[0004] The utility model aims to provide an automatic gas distribution control device for a high-pressure combined gas cylinder for a sintering furnace, so as to solve at least one aspect of the problems and defects raised in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] An automatic gas distribution control device for a high-pressure combined gas cylinder for a sintering furnace comprises a sintering furnace body and also comprises:

[0007] A number of high-pressure gas cylinders, and the high-pressure gas cylinders are divided into a number of groups;

[0008] A gas delivery pipe is provided on the top of each of the high-pressure gas cylinders, and a solenoid valve is provided on the gas delivery pipe;

[0009] A gas distribution pipe, wherein the gas delivery pipes on the tops of the plurality of high-pressure gas cylinders are all connected to the gas distribution pipe;

[0010] A manual valve is provided at one end of the gas distribution pipe, and the other end of the gas distribution pipe is connected to the sintering furnace body;

[0011] The gas distribution pipe is provided with a first pressure sensor;

[0012] Also included is a programmable controller, which is used to open or close the solenoid valve.

[0013] The automatic gas distribution control device for high-pressure combined gas cylinders for sintering furnaces according to this solution has at least the following technical effects:

[0014] The automatic gas distribution control device for high-pressure combined gas cylinders for a sintering furnace is configured by dividing a plurality of high-pressure gas cylinders into a plurality of groups, arranging electromagnetic valves on gas delivery pipes of the plurality of high-pressure gas cylinders, and feeding back the pressure value in the gas distribution pipe to a programmable controller through a first pressure sensor, so that the programmable controller opens or closes the electromagnetic valve to control the gas output of a plurality of or a plurality of groups of high-pressure gas cylinders; when the pressure of one group of high-pressure gas cylinders is insufficient, the programmable controller opens another group of high-pressure gas cylinders with a higher pressure value, and preferentially opens the electromagnetic valve of the high-pressure gas cylinder with the lowest pressure value in the group, while always maintaining the gas supply pressure provided to the sintering furnace body.

[0015] Compared with the existing technology, the device can automatically control the gas output of the high-pressure gas cylinder, reduce manual intervention, reduce the labor intensity of manual work, improve the timeliness of gas supply, avoid insufficient gas supply to the sintering furnace body and low pressure alarm, ensure the continuity of gas supply, make the sintering furnace run more stably, and improve the working efficiency of the sintering furnace and the sintering quality of the product.

[0016] As a further solution of the utility model: an air inlet valve is arranged at one end of the air distribution pipe close to the sintering furnace body.

[0017] By arranging an air inlet valve at one end of the gas distribution pipe close to the sintering furnace body, when the sintering furnace stops running or does not need to be supplied with gas, the air inlet valve is closed, and the solenoid valves of the gas pipes of several high-pressure gas cylinders are opened at the same time. The remaining gas volume in several high-pressure gas cylinders can be detected by a programmable controller. By accurately detecting the gas pressure in several high-pressure gas cylinders, the high-pressure gas in the high-pressure gas cylinders can be used to a minimum during use, thereby avoiding energy waste, reducing the number of inflation and transportation times, and improving the use efficiency of high-pressure gas.

[0018] As a further solution of the utility model: a second pressure sensor is further arranged between the air intake valve and the sintering furnace body.

[0019] Since a second pressure sensor is also provided between the air inlet valve and the sintering furnace body, by maintaining a positive pressure difference between the first pressure sensor and the second pressure sensor, the programmable controller automatically adjusts the gas output pressure of the high-pressure gas cylinder according to the gas pressure required by the sintering furnace at different stages through the pressure difference change of the two pressure sensors, thereby ensuring that the gas pressure required at different stages is provided to the sintering furnace. There is no need to manually adjust the gas output pressure of the high-pressure gas cylinder, thereby ensuring the accuracy and flexibility of the change of the gas output pressure of the high-pressure gas cylinder.

[0020] As a further solution of the utility model: a pressure gauge is also provided on the gas distribution pipe.

[0021] Since the gas distribution pipe is also equipped with a pressure gauge, it can provide real-time gas pressure readings, and the gas pressure in the gas distribution pipe can be monitored at any time, which helps to promptly detect abnormal conditions in the gas supply and facilitate timely adoption of corresponding adjustment measures. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to facilitate understanding by those skilled in the art, the present invention is further described below in conjunction with the accompanying drawings.

[0023] Figure 1 The present invention is a schematic diagram of the structure of an automatic gas distribution control device for a high-pressure combined gas cylinder for a sintering furnace.

[0024] Reference numerals:

[0025] 100. Sintering furnace body; 101. High-pressure gas cylinder; 102. Gas transmission pipe; 103. Solenoid valve; 104. Gas distribution pipe; 105. Manual valve; 106. First pressure sensor; 107. Programmable controller; 108. Inlet valve; 109. Second pressure sensor; 110. Pressure gauge. DETAILED DESCRIPTION

[0026] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0027] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0028] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0029] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0030] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model, that is, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0031] Therefore, the following detailed description of the embodiments of the utility model provided in the accompanying drawings is not intended to limit the scope of the utility model claimed for protection, but merely represents selected embodiments of the utility model. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the utility model.

[0032] like Figure 1 The utility model embodiment shown is an automatic gas distribution control device for high-pressure combined gas cylinders for a sintering furnace, comprising a sintering furnace body 100, and also comprising: a plurality of high-pressure gas cylinders 101, and the plurality of high-pressure gas cylinders 101 are divided into a plurality of groups; a gas supply pipe 102 is arranged on the top of the plurality of high-pressure gas cylinders 101, and a solenoid valve 103 is arranged on the gas supply pipe 102; a gas distribution pipe 104, the gas supply pipes 102 on the top of the plurality of high-pressure gas cylinders 101 are all connected with the gas distribution pipe 104; a manual valve 105 is arranged at one end of the gas distribution pipe 104, and the other end of the gas distribution pipe 104 is connected with the sintering furnace body 100; a first pressure sensor 106 is arranged on the gas distribution pipe 104; and also comprising a programmable controller 107, the programmable controller 107 is used to open or close the solenoid valve 103.

[0033] Specifically, the automatic gas distribution control device for high-pressure combined gas cylinders for the sintering furnace is implemented by dividing a plurality of high-pressure gas cylinders 101 into a plurality of groups, arranging solenoid valves 103 on the gas delivery pipes 102 of the plurality of high-pressure gas cylinders 101, and feeding back the pressure value in the gas distribution pipe 104 to the programmable controller 107 through the first pressure sensor 106, so that the programmable controller 107 opens or closes the solenoid valve 103 to control the gas output of a plurality of or a plurality of groups of high-pressure gas cylinders 101; when the pressure of one group of high-pressure gas cylinders 101 is insufficient, the programmable controller 107 opens another group of high-pressure gas cylinders 101 with a higher pressure value, and preferentially opens the solenoid valve 103 of the high-pressure gas cylinder 101 with the lowest pressure value in the group, while always maintaining the gas supply pressure provided to the sintering furnace body 100.

[0034] Compared with the prior art, the device can automatically control the gas output of the high-pressure gas cylinder 101, reduce manual intervention, reduce the labor intensity of manual work, improve the timeliness of gas supply, avoid insufficient gas supply to the sintering furnace body 100 and low pressure alarm, ensure the continuity of gas supply, make the sintering furnace run more stably, and improve the working efficiency of the sintering furnace and the sintering quality of the product.

[0035] like Figure 1 As shown, an air inlet valve 108 is provided at one end of the air distribution pipe 104 close to the sintering furnace body 100 .

[0036] Specifically, an air intake valve 108 is provided at one end of the gas distribution pipe 104 close to the sintering furnace body 100. When the sintering furnace stops running or there is no need to supply gas to the sintering furnace, the air intake valve 108 is closed, and at the same time, the solenoid valves 103 of the gas pipes 102 of several high-pressure gas cylinders 101 are opened. The remaining gas volume in the several high-pressure gas cylinders 101 can be detected by the programmable controller 107. By accurately detecting the gas pressure in the several high-pressure gas cylinders 101, the high-pressure gas in the high-pressure gas cylinders 101 can be used to a minimum during use, thereby avoiding energy waste, reducing the number of inflation and transportation times, and improving the use efficiency of the high-pressure gas.

[0037] like Figure 1 As shown, a second pressure sensor 109 is further provided between the air inlet valve 108 and the sintering furnace body 100 .

[0038] Specifically, since a second pressure sensor 109 is also provided between the air inlet valve 108 and the sintering furnace body 100, by maintaining a positive pressure difference between the first pressure sensor 106 and the second pressure sensor 109, the programmable controller 107 automatically adjusts the gas output pressure of the high-pressure gas cylinder according to the gas pressure required by the sintering furnace at different stages through the pressure difference change of the two pressure sensors, thereby ensuring that the gas pressure required at different stages is provided to the sintering furnace. There is no need to manually adjust the gas output pressure of the high-pressure gas cylinder 101, thereby ensuring the accuracy and flexibility of the change of the gas output pressure of the high-pressure gas cylinder 101.

[0039] like Figure 1 As shown, a pressure gauge 110 is also provided on the gas distribution pipe 104 .

[0040] Specifically, since the gas distribution pipe 104 is also provided with a pressure gauge 110, it can provide real-time gas pressure readings, and the gas pressure in the gas distribution pipe 104 can be monitored at any time, which helps to promptly discover abnormal conditions during gas supply and facilitate timely adoption of corresponding adjustment measures.

[0041] The above contents are merely examples and explanations of the structure of the utility model. The technicians in this technical field may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the structure of the utility model or exceed the scope defined in the claims, they should all fall within the protection scope of the utility model.

Claims

1. An automatic gas distribution control device for a high-pressure combined gas cylinder for a sintering furnace, comprising a sintering furnace body (100), characterized in that: Also includes: A plurality of high-pressure gas cylinders (101), wherein the plurality of high-pressure gas cylinders (101) are divided into a plurality of groups; A gas delivery pipe (102) is disposed on the top of each of the plurality of high-pressure gas cylinders (101), and a solenoid valve (103) is disposed on the gas delivery pipe (102); A gas distribution pipe (104), wherein the gas delivery pipes (102) at the tops of the plurality of high-pressure gas cylinders (101) are all in communication with the gas distribution pipe (104); A manual valve (105) is provided at one end of the gas distribution pipe (104), and the other end of the gas distribution pipe (104) is connected to the sintering furnace body (100); The gas distribution pipe (104) is provided with a first pressure sensor (106); It also includes a programmable controller (107), wherein the programmable controller (107) is used to open or close the solenoid valve (103).

2. The automatic gas distribution control device for high-pressure combined gas cylinders for sintering furnaces according to claim 1 is characterized in that: An air inlet valve (108) is provided at one end of the air distribution pipe (104) close to the sintering furnace body (100).

3. The automatic gas distribution control device for high-pressure combined gas cylinders for sintering furnaces according to claim 2 is characterized in that: A second pressure sensor (109) is also provided between the air intake valve (108) and the sintering furnace body (100).

4. The automatic gas distribution control device for high-pressure combined gas cylinders for sintering furnaces according to any one of claims 1 to 3, characterized in that: The gas distribution pipe (104) is also provided with a pressure gauge (110).

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