Multi-mode gas mixing device

Abstract

The invention discloses a multi-mode gas mixing device, relates to the technical field of gas mixing, and solves the problems that when an existing gas mixing cabinet does not have external power for mixing, the mixing efficiency is low, the mixed gas is discharged while the gas is mixed, the condition of non-uniform mixing is easily generated, the working mode is single, and the mixing efficiency is low. The device comprises a bottom plate, a gas mixing cabinet is arranged at the top end of the bottom plate, a control cabinet is arranged on one side of the gas mixing cabinet, and a gas mixing tank and a gas storage tank are arranged in the gas mixing cabinet. Through cooperative work of the structures, gas mixing can be more uniform, the gas mixing speed is increased, the use flexibility of the gas mixing device is improved, the gas mixing device has multiple different working modes, when the pressure of gas in the tank body is too high, the gas can be rapidly discharged from the tank body, and potential safety hazards are avoided.

Description

Technical Field

[0001] The invention relates to the technical field of gas mixing, and in particular to a multi-mode gas mixing device. Background Art

[0002] Mixed gas refers to gas containing two or more effective components, or gas that is a non-effective component but whose content exceeds the specified limit. Common mixed gases include dry air, a mixed gas composed of 21% oxygen and 79% nitrogen, carbon dioxide mixed gas, composed of 2.5% carbon dioxide + 27.5% nitrogen + 70% helium, and high-efficiency energy-saving light bulb filling mixed gas, composed of 50% krypton + 50% argon mixed gas. When mixing gases, a gas mixing cabinet is needed to mix the gases; Mixed gas cabinets are mainly used in the industrial field to store high-pressure gases, such as oxygen, nitrogen, hydrogen, etc. They are widely used in petrochemical, pharmaceutical, aerospace and other industries. Some current production processes require the use of multiple mixed liquid gases to meet production needs. Traditional gas cabinets can usually only store gas, while mixed gas cabinets use liquid media to mix gas and liquid, thereby improving storage capacity and reducing the risk of gas leakage; However, when existing gas mixing cabinets mix gases, the mixing efficiency is slow when there is no external power for mixing, and the mixed gas is discharged while mixing the gas, which easily causes uneven mixing and affects the use of the mixed gas. At the same time, the working mode is relatively single, which affects the flexibility of use. Summary of the invention

[0003] The purpose of the present invention is to provide a multi-mode gas mixing device to solve the following technical problems: When existing gas mixing cabinets mix gases, the mixing efficiency is slow when there is no external power for mixing. In addition, the mixed gas is discharged while mixing the gas, which easily leads to uneven mixing and affects the use of the mixed gas. At the same time, the working mode is relatively single, which affects the flexibility of use.

[0004] The object of the present invention can be achieved by the following technical solution: a multi-mode gas mixing device, comprising a bottom plate, a gas mixing cabinet is arranged on the top of the bottom plate, a control cabinet is arranged on one side of the gas mixing cabinet, and a gas mixing tank is arranged inside the gas mixing cabinet; The gas mixing tank comprises a slot seat, a tank body is inserted into the top of the slot seat, a tank cover is threadedly connected to the top of the tank body through a flange, a pressure monitoring gauge is arranged on one side at the top center of the tank cover, an electric-controlled quick pressure relief valve is arranged at the rear end at the top center of the tank cover, a gas mixing component is arranged inside the tank body, a mixed gas output port is opened on the other side at the top center of the tank cover, the slot seat is arranged at the bottom end of one side inside the gas mixing cabinet, and the pressure monitoring gauge and the electric-controlled quick pressure relief valve are both arranged throughout the interior of the tank cover.

[0005] As a further solution of the present invention, the gas mixing component includes a first input port, a second input port is arranged at the rear end of the first input port, an air guide pipe is arranged at the bottom end of the second input port, and a plurality of stirring tubes are evenly arranged at the bottom end of the outer wall of the air guide pipe. The first input port is opened at the front end of the top center of the tank cover one, and the second input port is opened at the top center of the tank cover one. The top end of the air guide pipe is rotatably connected to the bottom center of the tank cover one through a bearing box and is communicated with the second input port.

[0006] As a further solution of the present invention, a plurality of exhaust holes are evenly opened on one side of the outer wall of the plurality of stirring tubes, and a pressurizing nozzle is added to the front end of each exhaust hole, and the plurality of stirring tubes and the air guide tube are interconnected.

[0007] As a further solution of the present invention, the top ends of the first input port and the second input port are both connected to a one-way valve via a flange thread, and the top end of the mixed gas output port is connected to an electric control valve 1 via a flange thread.

[0008] As a further scheme of the present invention, a gas storage tank is arranged on the side of the mixing tank, and the gas storage tank includes a groove seat 2, a tank body 2 is inserted into the top of the groove seat 2, and a tank cover 2 is threadedly connected to the top of the tank body 2 through a flange, a pressure monitoring gauge 2 is arranged on one side of the top front end of the tank cover 2, and an electrically controlled quick pressure relief valve 2 is arranged at the rear end of the top center of the tank cover 2, a mixed gas input port is opened on one side of the top of the tank cover 2, and an exhaust port is opened on the other side of the top of the tank cover 2, an auxiliary exhaust assembly is arranged inside the tank body 2, the groove seat 2 is arranged on the side of the groove seat 1, the pressure monitoring gauge 2 and the electrically controlled quick pressure relief valve 2 are both arranged in the interior of the tank cover 2, and the mixed gas input port and the mixed gas output port are connected by a connecting pipe.

[0009] As a further scheme of the present invention, the auxiliary exhaust component includes a servo motor, the bottom end of the servo motor output shaft is lockedly connected to a screw rod through a coupling, the bottom end of the screw rod is rotatably connected to a rotating block, the outer wall of the screw rod is threadedly connected to a threaded tube, the outer wall of the threaded tube is fixedly connected to a piston plate, the inner rear end of the piston plate is fixedly connected to two sleeves, the interiors of the two sleeves are both sleeved with a light rod, the servo motor is threadedly connected to the front end of the top center of the tank cover 2 through a flange, the bottom end of the rotating block is fixedly connected to the inner bottom end of the tank body 2, the top ends of the two light rods are fixedly connected to the bottom of the tank cover 2, and the bottom ends of the light rods are fixedly connected to the inner bottom end of the tank body 2.

[0010] As a further solution of the present invention, the screw rod and the two smooth rods are distributed in a circular array inside the tank body 2 with the central axis of the tank body 2 as the axis. The outer wall of the piston plate is processed with a circle of rubber sealing ring, and the outer wall of the piston plate and the inner wall of the tank body 2 are in contact with each other.

[0011] As a further solution of the present invention, the top end of the mixed gas inlet and the top end of the exhaust port are respectively connected to the second electric control valve and the third electric control valve via flange threads.

[0012] As a further scheme of the present invention, the mixing cabinet includes a cabinet body, one side of the front surface of the cabinet body is rotatably connected to a cabinet door 1 through a hinge, and the other side of the front surface of the cabinet body is also rotatably connected to two cabinet doors 2 through a hinge, two groups of gas input ends are provided on the side of the cabinet body close to the cabinet door 1, and two gas output ends are provided on the side of the cabinet body close to the cabinet door 2, and a ventilation fan is arranged at a position on the back of the cabinet body corresponding to the center of the two cabinet doors 2, and the two groups of gas input ends are located at positions inside the cabinet body and are both threadedly connected to gas pipes through flanges, and two groups of input regulating equipment groups are arranged inside the cabinet body at the back of cabinet door 1, the other end of each group of gas pipes is connected to the first input port and the second input port through the input regulating equipment group, and the gas output end is connected to the exhaust port through an exhaust pipe, and the cabinet body is fixedly connected to the top of the bottom plate, and the bottom ends of the slot seat 1 and the slot seat 2 are fixedly connected to one side of the inner bottom end of the cabinet body.

[0013] As a further solution of the present invention, a partition is provided inside the cabinet to divide the interior of the cabinet into two spaces, the input adjustment device group is arranged on one side of the partition, and the gas mixing tank and the gas storage tank are arranged on the other side of the partition.

[0014] Beneficial effects of the present invention: Through the cooperation of the gas mixing components in the gas mixing tank, when the gases are mixed, the gas with a lower total proportion directly enters the tank body one through the first input port, while the gas with a higher total proportion will first enter the inside of the gas guide pipe through the second input port, and through the cooperation between the gas guide pipe and the stirring pipe, when the stirring pipe discharges the gas, the thrust generated when the gas is discharged will drive the stirring pipe to rotate inside the tank body one, so that the gases are easier to mix together and the gases can be mixed more evenly; Through the work of the auxiliary exhaust component in the gas storage tank, when the mixed gas that has been proportioned and mixed together needs to be discharged from the second tank body, the exhaust port discharges the mixed gas while the servo motor also starts to work. Through the cooperation of the screw rod, the threaded tube and the piston plate, the piston plate can be driven to slide upward while the gas inside the second tank body is discharged, thereby compressing the space for storing gas while the amount of gas stored inside it decreases. This can keep the pressure of the mixed gas at a relatively constant state to a certain extent, facilitate the discharge of the mixed gas, increase the discharge speed, and make the gas discharge more thorough. Through the coordinated work of the above-mentioned structure, the gas can be mixed more evenly, and the speed of the mixed gas can be increased, thereby accelerating the mixing efficiency. By separating the step of mixing the gas and the step of discharging the mixed gas, the uneven mixing of the discharged mixed gas can be avoided when the gas is mixed and discharged at the same time. By setting two mixing tanks and two gas storage tanks, two mixed gases with different ratios can be mixed at the same time and stored in the gas storage tanks, and two mixed gases with the same ratio can be mixed at the same time and stored in the gas storage tanks, which improves the flexibility of use of the gas mixing device and enables it to have a variety of different working modes. When the gas pressure inside the tank is too high, the gas can be quickly discharged from the tank to avoid safety hazards. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the connection structure of the multi-mode gas mixing device of the present invention; Figure 2 The present invention Figure 1 Another isometric connection structure schematic diagram; Figure 3 The present invention Figure 1 A schematic diagram of a rear view connection structure; Figure 4 The present invention Figure 1 Schematic diagram of the connection structure of the input adjustment device group; Figure 5 The present invention Figure 1 Schematic diagram of the connection structure between the intermediate gas mixing tank and the gas storage tank; Figure 6 The present invention Figure 5Schematic diagram of the connection structure of the intermediate gas mixing tank; Figure 7 The present invention Figure 6 A schematic diagram of a partial cross-sectional connection structure; Figure 8 The present invention Figure 7 Schematic diagram of the connection structure of the mid-mixing component; Fig. 9 The present invention Figure 5 Schematic diagram of the connection structure of the middle gas storage tank; Fig.10 The present invention Fig. 9 A schematic diagram of a partial cross-sectional connection structure; Fig.11 The present invention Fig. 9 Schematic diagram of the connection structure of the auxiliary exhaust component.

[0016] In the figure: 1, bottom plate; 2, gas mixing cabinet; 201, cabinet body; 202, cabinet door 1; 203, cabinet door 2; 204, gas input end; 205, gas output end; 206, ventilation fan; 207, gas pipe; 208, input adjustment equipment group; 3, control cabinet; 4, gas mixing tank; 401, slot seat 1; 402, tank body 1; 403, tank cover 1; 404, pressure monitoring gauge 1; 405, electric control quick pressure relief valve 1; 406, gas mixing component; 4061, first input port; 4062, second input port; 4063, gas mixing tank; 4064, gas mixing tank; 4065, gas mixing tank; 4066, gas mixing tank; 4067, gas mixing tank; 4068, gas mixing tank; 4069, gas mixing tank; 4070, gas mixing tank; 4071, gas mixing tank; 4072, gas mixing tank; 4073, gas mixing tank; 4074, gas mixing tank; 4075, gas mixing tank; 4076, gas mixing tank; 4077, gas mixing tank; 4078, gas mixing tank; 4079, gas mixing tank; 4080, gas mixing tank; 4081, gas mixing tank; 4082, gas mixing tank; 4083, gas mixing tank; 4084, gas mixing tank; 4085, gas mixing tank; 4086, gas mixing tank; 4087, gas mixing tank; 4088, gas mixing tank; 409, gas mixing tank; 410, gas mixing tank; 411, gas mixing tank; 412, gas mixing tank; 413, gas mixing tank; 414, gas mixing tank; 415, gas mixing tank; 4 63. Air guide pipe; 4064. Stirring tube; 407. Mixed gas output port; 5. Gas storage tank; 501. Two slot seats; 502. Two tank bodies; 503. Two tank covers; 504. Two pressure monitoring gauges; 505. Two electronically controlled quick pressure relief valves; 506. Mixed gas input port; 507. Exhaust port; 508. Auxiliary exhaust assembly; 5081. Servo motor; 5082. Screw rod; 5083. Rotating block; 5084. Threaded pipe; 5085. Piston plate; 5086. Sleeve; 5087. Light rod; 6. Connecting pipe. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] Example 1: Please refer to Figure 1-4As shown, the present invention is a multi-mode gas mixing device, including a bottom plate 1, the bottom plate 1 is used to support a gas mixing cabinet 2 and a control cabinet 3, a gas mixing cabinet 2 is arranged on the top of the bottom plate 1, the gas mixing cabinet 2 is used to store a gas mixing tank 4 and a gas storage tank 5, and can transport different gases to the gas mixing tank 4, and can also discharge the mixed gas stored in the gas storage tank 5 from the gas storage tank 5 after mixing and processing, a control cabinet 3 is arranged on one side of the gas mixing cabinet 2, the control cabinet 3 is used to control the gas mixing cabinet 2 to work, a gas mixing tank 4 and a gas storage tank 5 are arranged inside the gas mixing cabinet 2, and the gas mixing tank 4 and the gas storage tank 5 are connected through a connecting pipe 6, the gas mixing tank 4 is used to mix different gases inputted therein together, the gas storage tank 5 is used to store the mixed gas, and output the mixed gas from the inside thereof when the mixed gas is needed; The gas mixing cabinet 2 includes a cabinet body 201, and a cabinet door 202 is rotatably connected to one side of the front surface of the cabinet body 201 through a hinge. The cabinet door 202 is used to enclose one side of the front surface of the cabinet body 201. The other side of the front surface of the cabinet body 201 is also rotatably connected to two cabinet doors 203 through a hinge. The two cabinet doors 203 are symmetrical to each other and are used to enclose the other side of the front surface of the cabinet body 201. Two sets of gas input terminals 204 are opened on one side of the cabinet body 201 close to the cabinet door 202, and the internal resistance gas The input end 204 includes two input ports for delivering different gases to the interior of the gas mixing tank 4. The cabinet 201 has two gas output ends 205 on one side close to the cabinet door 203 for outputting the mixed gas inside the gas storage tank 5 to other use ends or storage tanks. A ventilation fan 206 is provided at a position corresponding to the center of the two cabinet doors 203 on the back of the cabinet 201. The ventilation fan 206 is used to exhaust the gas overflowing from the mixing tank 4 or the gas storage tank 5 inside the cabinet 201. For discharge, two groups of gas input ends 204 are located inside the cabinet 201 and are both connected to gas pipes 207 through flange threads. The gas pipes 207 are used to input different gases into the interior of the mixing tank 4. Two groups of input regulating equipment groups 208 are arranged inside the cabinet 201 at the back of the cabinet door 1 202. The input regulating equipment group 208 is used to control the gas flow input into the mixing tank 4, so as to ensure the amount of gas delivery, so as to ensure the accurate proportion of each gas when mixing the gases. The other end of each group of gas pipes 207 is connected to the first input port 4061 and the second input port 4062 through the input regulating equipment group 208, and the gas output end 205 is connected to the exhaust port 507 through the exhaust pipe. The cabinet 201 is fixed to the top of the bottom plate 1. The cabinet 201 is used to install the input regulating equipment group 208, the mixing tank 4 and the gas storage tank 5. The bottom ends of the slot seat 1 401 and the slot seat 2 501 are fixedly connected to one side of the inner bottom end of the cabinet 201.

[0019] In this embodiment, preferably, a partition is provided inside the cabinet 201 to divide the interior of the cabinet 201 into two spaces, the input adjustment device group 208 is arranged on one side of the partition, and the mixing tank 4 and the gas storage tank 5 are arranged on the other side of the partition, and the inner wall of the internal space of the cabinet 201 for installing the mixing tank 4 and the gas storage tank 5 is processed with a reinforced protective layer, thereby enhancing the protection performance of the cabinet 201.

[0020] Example 2: Please refer to Figure 1 and Figure 5-Figure 8 As shown, on the basis of the first embodiment, the gas mixing tank 4 includes a slot seat 401, a tank body 402 is inserted into the top of the slot seat 401, the tank body 402 is used to contain the gas inputted therein, the top of the tank body 402 is threadedly connected with a tank cover 403 through a flange, the tank cover 403 is used to seal the tank body 402, and to install a pressure monitoring gauge 404, an electrically controlled quick pressure relief valve 405, a gas mixing component 406 and a mixed gas output port 407, a pressure monitoring gauge 404 is arranged on one side at the center of the top of the tank cover 403, the pressure monitoring gauge 404 is used to detect the gas pressure inside the tank body 402 to ensure that the tank body 402 is within a safe use range, and to send an alarm to the outside world when the internal pressure of the tank body 402 is too high, an electrically controlled quick pressure relief valve 405 is arranged at the rear end of the top center of the tank cover 403, and the electrically controlled quick pressure relief valve 405 is arranged. It is used to quickly discharge the gas inside the tank body 402 to avoid safety hazards caused by excessive gas pressure in the tank body 402. A gas mixing component 406 is arranged inside the tank body 402. The gas mixing component 406 is used to input different gases into the interior of the tank body 402 and can mix the different gases input into the interior of the tank body 402. A mixed gas output port 407 is opened on the other side of the top center of the tank cover 403. The mixed gas output port 407 is used to discharge the gas after the mixing process inside the tank body 402 from the interior. The groove seat 401 is arranged at the bottom end of one side of the interior of the gas mixing cabinet 2. The groove seat 401 is used to install the tank body 402. The tank body 402 can be plugged in and out at the top of the groove seat, so as to facilitate the replacement of the tank body 402. The pressure monitoring gauge 404 and the electronically controlled quick pressure relief valve 405 are both arranged throughout the interior of the tank cover 403.

[0021] In this embodiment, preferably, the gas mixing component 406 includes a first input port 4061, and a second input port 4062 is provided at the rear end of the first input port 4061. The second input port 4062 is used to input the gas with a higher overall proportion in the gases to be mixed together, and transport it to the inside of the air guide pipe 4063. The bottom end of the second input port 4062 is provided with an air guide pipe 4063, and the air guide pipe 4063 is used to guide the gas input therein and transport it to the inside of a plurality of stirring tubes 4064 connected to the air guide pipe 4063. The bottom end of the outer wall of the air guide pipe 4063 is evenly provided with a plurality of A stirring tube 4064, multiple stirring tubes 4064 are used to discharge the gas input thereinto, so that the gas enters the interior of the tank body 402, the first input port 4061 is opened at the front end of the top center of the tank cover 403, the first input port 4061 is used to input the gas with a lower overall proportion in the gases to be mixed together, and directly transport it to the interior of the tank body 402, the second input port 4062 is opened at the top center of the tank cover 403, the top end of the air guide tube 4063 is rotatably connected to the bottom center of the tank cover 403 through the bearing box, and is connected to the second input port 4062.

[0022] In the present embodiment, preferably, a plurality of exhaust holes are evenly provided on one side of the outer wall of the plurality of stirring tubes 4064, and a pressure nozzle is provided at the front end of each exhaust hole, and the plurality of stirring tubes 4064 are connected to the air guide tube 4063. Since the exhaust holes are only provided on one side of the outer wall of the stirring tube 4064, and a pressure nozzle is provided at the front end of the exhaust holes, when the stirring tube 4064 discharges the gas inside it, a certain thrust is generated, and the air guide tube 4063 is rotatably connected to the bottom center of the tank cover 403 through a bearing box. Therefore, when the stirring tube 4064 discharges the gas, the thrust generated when the gas is discharged will drive the stirring tube 4064 and the air guide tube 4063 to rotate inside the tank body 402, so that the gas can be exhausted while the inside of the tank body 402 can be stirred, so that the gas inside the tank body 402 is mixed more evenly, the gas mixing effect is improved, and the mixing speed is accelerated.

[0023] In this embodiment, preferably, the top ends of the first input port 4061 and the second input port 4062 are both connected with a one-way valve through a flange thread, and the one-way valve is used to control the opening and closing of the first input port 4061 and the second input port 4062, and can prevent the gas inside the tank body 402 from flowing back into the gas pipe 207 from the first input port 4061 or the second input port 4062. The top end of the mixed gas output port 407 is connected with an electric control valve 1 through a flange thread, and the electric control valve 1 is used to control the opening and closing of the mixed gas output port 407 to prevent the gas from overflowing prematurely when mixing the gases.

[0024] In summary, when different gases need to be mixed together, the gas with a lower overall proportion in the gases that need to be mixed together is directly transported to the interior of the tank body 402 through the first input port 4061. By controlling the input device adjustment group, the amount of gas input into the tank body 402 can be controlled to ensure the accuracy of the mixed gas. After the gas with a lower proportion is input, the gas with a higher overall proportion in the mixed gases is transported to the interior of the air guide pipe 4063 through the second input port 4062. When the gas is transported, the gas with a higher proportion will continue to enter the interior of the stirring pipe 4064 through the air guide pipe 4063, and be discharged into the interior of the tank body 402 through the stirring pipe 4064. Since an exhaust hole is only opened on one side of the outer wall of the stirring pipe 4064, and a pressurized nozzle is added at the front end of the exhaust hole, when the stirring pipe 4064 discharges the gas inside it, a certain thrust will be generated, and the air guide pipe 4063 is rotatably connected to the bottom center of the tank cover 403 through a bearing box. Therefore, when the stirring tube 4064 discharges gas, the thrust generated when the gas is discharged will drive the stirring tube 4064 and the air guide tube 4063 to rotate inside the tank body 402, so that the gas can be exhausted while the inside of the tank body 402 is stirred, so that the gas inside the tank body 402 is mixed more evenly, the gas mixing effect is improved, and the mixing speed is accelerated. The mixed gas will be discharged from the inside of the tank body 402 through the mixed gas output port 407. Since two mixing tanks 4 are set at the same time, two mixed gases with the same ratio can be mixed at the same time when mixing the gas, thereby accelerating the overall efficiency of mixing the gas, or one mixing tank 4 mixes a gas with a ratio, and the other mixing tank 4 mixes a gas with another ratio, so that two mixed gases can be configured at the same time, thereby improving its flexibility of use.

[0025] Example 3: Please refer to Figure 1 , Figure 5 and Figure 9-11As shown, on the basis of the first and second embodiments, a gas storage tank 5 is arranged on the side of the mixing tank 4, and the gas storage tank 5 includes a second groove seat 501, and a second tank body 502 is inserted inside the top of the second groove seat 501, and the second tank body 502 is used to store the gas after the mixing is completed. The top of the second tank body 502 is threadedly connected with a second tank cover 503 through a flange, and the second tank cover 503 is used to seal the second tank body 502, and a pressure monitoring gauge 504 and an electrically controlled quick pressure relief valve 505 can be installed. A second pressure monitoring gauge 504 is arranged on one side of the top front end of the second tank cover 503, and the pressure monitoring gauge 504 is used to monitor the internal gas pressure of the second tank body 502. An electrically controlled quick pressure relief valve 505 is arranged at the rear end of the top center of the second tank cover 503, and the electrically controlled pressure relief valve 505 is used to quickly release the gas inside the second tank body 502 when the internal gas pressure of the second tank body 502 is too high. Gas discharge to avoid safety hazards caused by excessive internal pressure of tank body 502, a mixed gas input port 506 is provided on one side of the top of tank cover 503, which is used to input the mixed gas into the interior of tank body 502, and an exhaust port 507 is provided on the other side of the top of tank cover 503, and the exhaust port 507 is used to discharge the mixed gas stored in the interior of tank body 502, and an auxiliary exhaust component 508 is provided inside tank body 502, and the auxiliary exhaust component is used to assist the discharge of the mixed gas, thereby increasing the speed of discharging the mixed gas, slot seat 501 is set on the side of slot seat 1 401, slot seat 501 is used to install tank body 502, pressure monitoring gauge 504 and electric-controlled quick pressure relief valve 505 are both set inside tank cover 503, and the mixed gas input port 506 and the mixed gas output port 407 are connected by a connecting pipe 6.

[0026] In this embodiment, preferably, the auxiliary exhaust component 508 includes a servo motor 5081, and the bottom end of the output shaft of the servo motor 5081 is locked and connected with a screw rod 5082 through a coupling, and the screw rod 5082 is used to drive the threaded tube 5084 to rise and fall, and the bottom end of the screw rod 5082 is rotatably connected with a rotating block 5083, and the rotating block 5083 is used to support the bottom end of the screw rod 5082, and the outer wall of the screw rod 5082 is threadedly connected with a threaded tube 5084, and the threaded tube 5084 is used to drive the piston plate 5085 to rise and fall, and the outer wall of the threaded tube 5084 is fixedly connected with a piston plate 5085, and the piston plate 5085 is used to compress the gas inside the tank body 502. When the mixed gas is discharged, the mixed gas stored in the tank body 502 can be pushed upward, so that the pressure of the mixed gas inside the tank body 502 is maintained at a relatively constant state, thereby The speed of discharging the mixed gas can be improved, and the mixed gas can be discharged more thoroughly. Two sleeves 5086 are fixedly connected to the inner rear end of the piston plate 5085. The sleeves 5086 are used to limit the movement trajectory of the piston plate 5085, so that the piston plate 5085 can move vertically. The interiors of the two sleeves 5086 are sleeved with light rods 5087. The light rods 5087 are used to limit the movement trajectory of the sleeves 5086. The servo motor 5081 is threadedly connected to the front end of the top center of the tank cover 503 through a flange. The servo motor 5081 is used to drive the screw rod 5082 to rotate in the forward direction or the reverse direction. The bottom end of the rotating block 5083 is fixedly connected to the inner bottom end of the tank body 502. The top ends of the two light rods 5087 are fixedly connected to the bottom of the tank cover 503, and the bottom ends of the light rods 5087 are fixedly connected to the inner bottom end of the tank body 502.

[0027] In this embodiment, preferably, the screw rod 5082 and the two smooth rods 5087 are distributed in a circular array inside the tank body 502 with the central axis of the tank body 502 as the axis, and the outer wall of the piston plate 5085 is processed with a circle of rubber sealing ring, and the outer wall of the piston plate 5085 and the inner wall of the tank body 502 fit each other, thereby improving the sealing between the piston plate 5085 and the inner wall of the tank body 502, and preventing gas from overflowing through the gap between the piston plate 5085 and the tank body 502.

[0028] In this embodiment, preferably, the top of the mixed gas input port 506 and the top of the exhaust port 507 are respectively connected to the electric control valve 2 and the electric control valve 3 through flange threads, and the electric control valve 2 and the electric control valve 3 are used to control the opening and closing of the mixed gas input port 506 and the exhaust port 507 respectively.

[0029] In summary, after the gas mixing tank 4 mixes the gases, the electric control valve 1 at the top of the mixed gas output port 407 and the electric control valve 2 at the top of the mixed gas input port 506 are opened, and the mixed gas will enter the interior of the tank body 2 502 in the gas storage tank 5 through the connecting pipe 6. After the gases are transported to the interior of the tank body 2 502, the electric control valve 2 is closed again, and the mixed gas can be stored in the interior of the tank body 2 502. When it is needed, the mixed gas can be discharged from the interior of the tank body 2 502, so as to avoid the problem of uneven or untimely gas mixing when the gases are mixed only when they are used. When it is necessary to discharge the mixed gas, the electric control valve 3 at the top of the exhaust port 507 is opened and closed, so as to discharge the mixed gas inside the tank body 2 502. At the same time, the servo motor 5081 in the auxiliary exhaust component 508 also starts to work, and the output shaft of the servo motor 5081 drives the screw rod 5082 to rotate. When the screw rod 5082 rotates, it can drive the threaded tube 5084 threadedly connected to its outer wall to move upward, thereby driving the piston plate 5085 to move upward through the threaded tube 5084, thereby changing the space for storing the mixed gas inside the second tank body 502, reducing the capacity of the mixed gas while reducing the space for storing the mixed gas, thereby keeping the pressure of the mixed gas in a relatively constant state, facilitating the discharge of the mixed gas, increasing the discharge speed, and making the gas discharge more thorough. After the mixed gas is discharged, when it is necessary to fill the second tank body 502 with mixed gas again, the servo motor 5081 controls the screw rod 5082 to rotate in the opposite direction, which can drive the threaded tube 5084 to move in the opposite direction through the screw rod 5082, thereby driving the piston plate 5085 to slide toward the inner bottom end of the second tank body 502 until the piston plate 5085 returns to its original position, facilitating the filling of the second tank body 502 with mixed gas again.

[0030] Example 4: Please refer to Figure 1-Figure 11As shown, the first embodiment, the second embodiment and the third embodiment are combined to obtain the present embodiment. When the two gases are mixed together, the gas with a lower mixing ratio is first delivered to the interior of the tank body 402 in the gas mixing tank 4 through the gas input end 204 connected to the first gas input port. After the gas with a lower mixing ratio is input, the gas with a higher mixing ratio is input to the interior of the tank body 402 through the gas input end 204 connected to the second gas input port. When the gas with a higher mixing ratio is input, the stirring tube 4064 rotates inside the tank body 402 while discharging the gas, thereby At the same time, the two gases in the tank body 1 402 are stirred to make the two gases mixed more evenly. After the mixing is completed, the mixed gas will enter the interior of the tank body 2 502 in the gas storage tank 5 through the cooperation of the mixed gas output port 407, the connecting pipe 6 and the mixed gas input port 506, so as to store or discharge the mixed gas. By separating the steps of mixing the gas and discharging the mixed gas, it is possible to avoid the uneven mixing of the discharged mixed gas when the gas is mixed and discharged at the same time. By setting two mixing tanks 4 and two gas storage tanks 5 , two mixed gases with different ratios can be mixed at the same time and stored in the gas storage tank 5, or two mixed gases with the same ratio can be mixed at the same time and stored in the gas storage tank 5, thereby improving the flexibility of the use of the gas mixing device and enabling it to have a variety of different working modes. When the gas pressure inside the mixing tank 4 or the gas storage tank 5 is too high, the gas pressure monitor 1 404 or the gas pressure monitor 2 504 will alarm, and at the same time, the data monitored by the gas pressure monitor 1 404 or the gas pressure monitor 2 504 will be transmitted to the control cabinet 3, and the control cabinet 3 will control the gas pressure monitor 1 404 or the gas pressure monitor 2 The electric quick pressure relief valve 1 405 or the electric quick pressure relief valve 2 505 installed at the same place 504 opens and closes, and the gas inside the tank body 1 402 or the tank body 2 502 is quickly discharged through the electric quick pressure relief valve 1 405 or the electric quick pressure relief valve 2 505. While the gas is being discharged, the ventilation fan 206 installed in the mixing cabinet 2 and located at the back of the cabinet 201 starts to work, and the gas discharged from the electric quick pressure relief valve 1 405 or the electric quick pressure relief valve 2 505 is discharged from the cabinet 201, so as to avoid the safety hazard caused by excessive gas pressure inside the tank body 1 402 or the tank body 2 502.

[0031] The above is a detailed description of an embodiment of the present invention, but the content is only a preferred embodiment of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made according to the scope of application of the present invention should still fall within the scope of application of the present invention.

Claims

1. A multi-mode gas mixing device, comprising a bottom plate, a gas mixing cabinet is arranged on the top of the bottom plate, and a control cabinet is arranged on one side of the gas mixing cabinet, characterized in that: A gas mixing tank is provided inside the gas mixing cabinet; The gas mixing tank comprises a slot seat, a tank body is inserted into the top of the slot seat, a tank cover is threadedly connected to the top of the tank body through a flange, a pressure monitoring gauge is arranged on one side at the top center of the tank cover, an electric-controlled quick pressure relief valve is arranged at the rear end at the top center of the tank cover, a gas mixing component is arranged inside the tank body, a mixed gas output port is opened on the other side at the top center of the tank cover, the slot seat is arranged at the bottom end of one side inside the gas mixing cabinet, and the pressure monitoring gauge and the electric-controlled quick pressure relief valve are both arranged throughout the interior of the tank cover.

2. A multi-mode gas mixing device according to claim 1, characterized in that: The gas mixing component includes a first input port, a second input port is arranged at the rear end of the first input port, an air guide pipe is arranged at the bottom end of the second input port, and a plurality of stirring pipes are evenly arranged at the bottom end of the outer wall of the air guide pipe. The first input port is opened at the front end of the top center of the tank cover one, and the second input port is opened at the top center of the tank cover one. The top end of the air guide pipe is rotatably connected to the bottom center of the tank cover one through a bearing box and is communicated with the second input port.

3. A multi-mode gas mixing device according to claim 2, characterized in that: A plurality of exhaust holes are evenly opened on one side of the outer wall of the plurality of stirring tubes, and a pressure nozzle is added at the front end of each exhaust hole. The plurality of stirring tubes and the air guide tube are connected to each other.

4. A multi-mode gas mixing device according to claim 2, characterized in that: The top ends of the first input port and the second input port are both connected to a one-way valve via a flange thread, and the top end of the mixed gas output port is connected to an electric control valve 1 via a flange thread.

5. The multi-mode gas mixing device according to claim 1, characterized in that: A gas storage tank is arranged on the side of the mixing tank, and the gas storage tank comprises a groove seat 2, a tank body 2 is inserted into the top of the groove seat 2, a tank cover 2 is threadedly connected to the top of the tank body 2 through a flange, a pressure monitoring gauge 2 is arranged on one side of the top front end of the tank cover 2, an electrically controlled quick pressure relief valve 2 is arranged at the rear end of the top center of the tank cover 2, a mixed gas input port is provided on one side of the top of the tank cover 2, an exhaust port is provided on the other side of the top of the tank cover 2, an auxiliary exhaust assembly is arranged inside the tank body 2, the groove seat 2 is arranged on the side of the groove seat 1, the pressure monitoring gauge 2 and the electrically controlled quick pressure relief valve 2 are both arranged inside the tank cover 2, and the mixed gas input port and the mixed gas output port are connected through a connecting pipe.

6. A multi-mode gas mixing device according to claim 5, characterized in that: The auxiliary exhaust component includes a servo motor, the bottom end of the servo motor output shaft is lockedly connected to a screw rod through a coupling, the bottom end of the screw rod is rotatably connected to a rotating block, the outer wall of the screw rod is threadedly connected to a threaded tube, the outer wall of the threaded tube is fixedly connected to a piston plate, the inner rear end of the piston plate is fixedly connected to two sleeves, the interiors of the two sleeves are both sleeved with a light rod, the servo motor is threadedly connected to the front end of the top center of the tank cover 2 through a flange, the bottom end of the rotating block is fixedly connected to the inner bottom end of the tank body 2, the top ends of the two light rods are fixedly connected to the bottom of the tank cover 2, and the bottom ends of the light rods are fixedly connected to the inner bottom end of the tank body 2.

7. A multi-mode gas mixing device according to claim 6, characterized in that: The screw rod and the two polished rods are distributed in the interior of the second tank body in an annular array with the central axis of the second tank body as the axis. The outer wall of the piston plate is processed with a circle of rubber sealing ring, and the outer wall of the piston plate fits with the inner wall of the second tank body.

8. The multi-mode gas mixing device according to claim 5, characterized in that: The top end of the mixed gas input port and the top end of the exhaust port are respectively connected with an electric control valve 2 and an electric control valve 3 through flange threads.

9. The multi-mode gas mixing device according to claim 1, characterized in that: The mixing cabinet includes a cabinet body, one side of the front surface of the cabinet body is rotatably connected to a cabinet door 1 through a hinge, and the other side of the front surface of the cabinet body is also rotatably connected to two cabinet doors 2 through a hinge, two groups of gas input terminals are provided on the side of the cabinet body close to the cabinet door 1, and two gas output terminals are provided on the side of the cabinet body close to the cabinet door 2, and a ventilation fan is arranged at a position on the back of the cabinet body corresponding to the center of the two cabinet doors 2, and the two groups of gas input terminals are located at positions inside the cabinet body and are both threadedly connected to gas pipes through flanges, and two groups of input regulating equipment groups are arranged inside the cabinet body at positions on the back of cabinet door 1, and the other end of each group of gas pipes is connected to the first input port and the second input port through the input regulating equipment group, and the gas output terminal is connected to the exhaust port through an exhaust pipe, and the cabinet body is fixedly connected to the top of the bottom plate, and the bottom ends of the slot seat 1 and the slot seat 2 are fixedly connected to one side of the inner bottom end of the cabinet body.

10. A multi-mode gas mixing device according to claim 9, characterized in that: A partition is arranged inside the cabinet to divide the interior of the cabinet into two spaces. The input regulating device group is arranged on one side of the partition, and the gas mixing tank and the gas storage tank are arranged on the other side of the partition.

Images