Multi-component mixed gas preparation device

Abstract

The utility model relates to the technical field of gas preparation, and provides a multi-component mixed gas preparation device which comprises a mixing box, a mixing pipe is fixedly connected to the top of the outer surface of the mixing box, a convex ring is arranged on the inner wall of the mixing pipe, a filter screen is arranged on the surface of the convex ring, a groove is formed in the top of the outer surface of the mixing pipe, and the filter screen is arranged in the groove. When the gas supply device is used, gas enters the mixing pipe from the gas conveying pipe to be mixed by rotating the one-way valve, meanwhile, impurities in the gas are removed through the arranged filter screen after the gas enters the mixing pipe, and in the gas supply process, the impurities in the gas are removed through the filter screen, so that the impurities in the gas are removed, and the gas supply efficiency is improved. When the gas is prepared, pollutants such as particle impurities, water vapor, oil mist and oxides are possibly contained, the impurities can influence the flow control of the gas and lead to reduction of the matching precision, and the filter screen can remove the impurities, so that a mass flow controller or a regulating valve is prevented from being blocked, and the gas preparation precision is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to gas preparation technical field especially relates to a kind of multi-component mixed gas preparation device. BACKGROUND

[0002] City gas is mixed gas composed of multiple single gases, including methane, ethane, propane, butane, nitrogen, etc. Due to different sources and processing technologies of fuel gas, the components of fuel gas vary in different places. Therefore, engines, water heaters, stoves and other equipment using fuel gas need to test various component gases before ensuring their performance.

[0003] The existing patent No. CN216743842U is a fuel gas preparation device, which includes a raw gas treatment unit, a raw gas flow automatic control unit, a gas mixing unit, a mixed gas detection and use unit. The raw gas treatment unit is used to filter, regulate pressure and measure multiple raw gases simultaneously. The raw gas flow automatic control unit is used to synchronize control the flow of multiple raw gas sources and the outflow of mixed fuel gas. The gas mixing unit is used to mix raw gas and temporarily store mixed fuel gas. The mixed gas detection and use unit includes a component verification chromatographic analyzer and a flow controller. Compared with the prior art.

[0004] The above-mentioned scheme can prepare more component mixed gases and meet the supply requirements of large-flow mixed fuel gas. During gas supply, there may be particulate impurities, water vapor, oil mist, oxides and other pollutants. These impurities can affect the flow control of the gas, resulting in a decrease in the accuracy of the mixture ratio. UTILITY MODEL CONTENTS

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a multi-component mixed gas preparation device, comprising: a mixing box, the outer surface top of the mixing box is fixedly connected with a mixing pipe, the inner wall of the mixing pipe is provided with a convex ring, the surface of the convex ring is provided with a filter screen, the outer surface top of the mixing pipe is provided with a groove, the inside of the groove is movably embedded with a sealing cover, the outer surface top of the sealing cover is fixedly connected with two gas conveying pipes, the inside of each of the two gas conveying pipes is provided with a one-way valve, and the outer surface of the mixing box is fixedly connected with a control display.

[0006] The technical effect of the above-mentioned further scheme is: by rotating the one-way valve, the gas enters the inside of the mixing pipe for mixing, and at the same time, the filter screen is arranged to remove impurities in the gas. During gas supply, there may be particulate impurities, water vapor, oil mist, oxides and other pollutants. These impurities can affect the flow control of the gas, resulting in a decrease in the accuracy of the mixture ratio. The filter screen can remove these impurities, avoid blocking the mass flow controller or regulating valve, and improve the accuracy of gas preparation.

[0007] As a preferred implementation form, the outer surface top of the mixing box is fixedly connected with two vertical plates, the interiors of the two vertical plates are movably embedded with threaded rods, the interiors of the two vertical plates are movably embedded with limiting rods, and one end of the two threaded rods is rotatably connected with a semicircular block through a bearing.

[0008] The technical effect of the above further scheme is that the semicircular block moves forward and backward under the limiting of the limiting rod by rotating the threaded rod in the interior of the vertical plate, so that the semicircular block moves forward and backward, and at this time, the semicircular block is separated from the surface of the sealing cover, and is used for limiting the sealing cover.

[0009] As a preferred implementation form, the two semicircular blocks are located on both sides of the outer surface of the sealing cover, the outer surface of the filter screen is provided with a clamping hole, the outer surface of the mixing pipe is fixedly connected with a U-shaped block, and the interior of the U-shaped block is movably embedded with a pull rod.

[0010] The technical effect of the above further scheme is that the pull rod drives the limiting circular block to move to one side, and after moving, the clamping rod is separated from the interior of the clamping hole, and at this time, the filter screen can be disassembled from the interior of the mixing pipe for cleaning or replacement of the surface.

[0011] As a preferred implementation form, one end of the pull rod is fixedly connected with a limiting circular block, the limiting circular block is located on the outer surface of the mixing pipe, the outer surface of the limiting circular block is fixedly connected with a spring, one end of the spring is fixedly connected to the outer surface of the U-shaped block, the outer surface of the limiting circular block is fixedly connected with a clamping rod, and the clamping rod is movably embedded in the interior of the clamping hole.

[0012] The technical effect of the above further scheme is that the limiting circular block is abutted against the surface of the mixing pipe under the limiting of the spring, and the clamping rod is clamped in the interior of the clamping hole, and at this time, the filter screen can be limitedly installed for continuous use, the sealing cover is placed in the recess, and then the threaded rod is rotated to move the semicircular blocks under the limiting of the limiting rod, and the two semicircular blocks can fix the sealing cover.

[0013] Compared with the prior art, the utility model has the advantages and positive effects that,

[0014] 1. In use, the gas enters the interior of the mixing pipe through the one-way valve for mixing, and the filter screen is arranged to remove impurities in the gas. During gas supply, the gas may contain particulate impurities, water vapor, oil mist, oxides and other pollutants. These impurities will affect the flow control of the gas, leading to a decrease in the proportioning accuracy. The filter screen can remove these impurities to avoid blocking the mass flow controller or the regulating valve, and improve the accuracy of gas preparation.

[0015] 2. The utility model discloses, in use, pull the sealing cover from the inside of recess, at this time pull the pull rod and drive the limiting round block to move to one side, after moving, drive the clamping rod from the inside of card hole and separate, at this time can dismantle filter screen from the inside of mixed pipe, clean or replace its surface, after cleaning, place filter screen to the boss surface of mixed pipe surface, then under the location of spring make the limiting round block rest on the surface of mixed pipe, and the clamping rod is clamped in the inside of card hole, at this time can carry out the limiting installation of filter screen and continue to use, place the sealing cover in the inside of recess, then rotate the threaded rod under the location of limiting rod make semicircle block move, and two semicircle blocks can fix sealing cover. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 The utility model proposes a kind of mixed pipe internal structure schematic diagram of multi-component mixed gas preparation device;

[0017] Figure 2 The utility model proposes a kind of clamping rod structure schematic diagram of multi-component mixed gas preparation device;

[0018] Figure 3 The utility model proposes a kind of A place amplification structure schematic diagram of multi-component mixed gas preparation device;

[0019] Figure 4 The utility model proposes a kind of three-dimensional structure schematic diagram of multi-component mixed gas preparation device.

[0020] Legend: 101, mixing box;102, control display;103, mixed pipe;104, recess;105, vertical plate;106, threaded rod;107, limiting rod;108, semicircle block;109, sealing cover;110, gas pipe;111, check valve;112, filter screen;113, U-shaped block;114, pull rod;115, spring;1151, limiting round block;116, clamping rod;117, card hole. DETAILED DESCRIPTION

[0021] In order to more clearly understand the above-mentioned purposes, features and advantages of the utility model, the utility model will be further described below in conjunction with drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0022] In the following description, many specific details are set forth in order to provide a thorough understanding of the utility model, but the utility model can also be implemented in other ways different from those described herein, therefore, the utility model is not limited to the specific embodiments disclosed in the following disclosure.

[0023] Please refer to Figures 1 to 4The utility model provides a kind of multi-component mixed gas preparation device, comprising: mixing box 101, the outer surface top of mixing box 101 is fixedly connected with mixing pipe 103, the inner wall of mixing pipe 103 is provided with convex ring, the surface of convex ring is provided with filter screen 112, the outer surface top of mixing pipe 103 is opened with recess 104, recess 104 is movably embedded with sealing cover 109, the outer surface top of sealing cover 109 is fixedly connected with two gas pipes 110, the inside of two gas pipes 110 is provided with check valve 111, the outer surface of mixing box 101 is fixedly connected with control display 102, by rotating check valve 111, gas is made from gas pipe 110 into the inside of mixing pipe 103 and mixes, while gas enters the inside of mixing pipe 103 and is removed by being provided with filter screen 112 in gas, in gas supply process, possibly contain particulate impurities, water vapor, oil mist, oxide and other pollutants, these impurities can influence the flow control of gas, cause proportioning precision to drop, filter screen can remove these impurities, avoid to block mass flow controller MFC or regulating valve, improve the precision of gas preparation.

[0024] As Figures 1 to 4 Indicated, the outer surface top of mixing box 101 is fixedly connected with two vertical plates 105, the inside of two vertical plates 105 is movably embedded with threaded rod 106, the inside of two vertical plates 105 is movably embedded with limit rod 107, one end of two threaded rods 106 is rotatably connected with semicircle block 108 by bearing, by rotating threaded rod 106 and moving in the inside of vertical plate 105 back and forth, so that semicircle block 108 moves back and forth under the limit of limit rod 107, at this time, semicircle block 108 is separated from the surface of sealing cover 109, for the limit of sealing cover 109.

[0025] As Figures 1 to 4 Indicated, two semicircle blocks 108 are located at the both sides of the outer surface of sealing cover 109, the outer surface of filter screen 112 is opened with clamping hole 117, the outer surface of mixing pipe 103 is fixedly connected with U-shaped block 113, the inside of U-shaped block 113 is movably embedded with pull rod 114, pull rod 114 drives limit round block 1151 to move to one side, after moving, clamping rod 116 is separated from the inside of clamping hole 117, at this time, filter screen 112 can be disassembled from the inside of mixing pipe 103, and its surface is cleaned or replaced.

[0026] As Figures 1 to 4As shown, one end of the pull rod 114 is fixedly connected with a limiting circular block 1151, the limiting circular block 1151 is located on the outer surface of the mixing pipe 103, the outer surface of the limiting circular block 1151 is fixedly connected with a spring 115, one end of the spring 115 is fixedly connected on the outer surface of the U-shaped block 113, the outer surface of the limiting circular block 1151 is fixedly connected with a clamping rod 116, the clamping rod 116 is movably embedded in the inner part of the clamping hole 117, under the limiting of the spring 115, the limiting circular block 1151 is abutted against the surface of the mixing pipe 103, the clamping rod 116 is clamped in the inner part of the clamping hole 117, at this time, the filter screen 112 can be limitedly installed for continuous use, the sealing cover 109 is placed in the inner part of the groove 104, then the threaded rod 106 is rotated, under the limiting of the limiting rod 107, the semicircular block 108 is moved, and the two semicircular blocks 108 can fix the sealing cover 109.

[0027] Working principle: when in use, the one-way valve 111 is rotated to make the gas enter the inner part of the mixing pipe 103 for mixing, meanwhile, the gas enters the inner part of the mixing pipe 103 to remove the impurities in the gas through the filter screen 112, during the gas supply process, the impurities such as particulate impurities, water vapor, oil mist and oxides may be contained, which will affect the flow control of the gas and cause the proportioning accuracy to decrease, the filter screen 112 can remove the impurities to avoid the blockage of the mass flow controller MFC or the regulating valve and improve the accuracy of the gas preparation, the worker can control the operation of the whole mixing device through the control display 102, and the gas content data can be displayed on the surface of the control display 102. The threaded rod 106 is rotated to move forward and backward in the inner part of the vertical plate 105, thereby under the limiting of the limiting rod 107, the semicircular block 108 is moved forward and backward, at this time, the semicircular block 108 is separated from the surface of the sealing cover 109, at this time, the sealing cover 109 is pulled out of the inner part of the groove 104, at this time, the pull rod 114 is pulled to drive the limiting circular block 1151 to move to one side, after moving, the clamping rod 116 is separated from the inner part of the clamping hole 117, at this time, the filter screen 112 can be disassembled from the inner part of the mixing pipe 103 for cleaning or replacement, after cleaning, the filter screen 112 is placed on the convex ring surface of the surface of the mixing pipe 103, then under the limiting of the spring 115, the limiting circular block 1151 is abutted against the surface of the mixing pipe 103, the clamping rod 116 is clamped in the inner part of the clamping hole 117, at this time, the filter screen 112 can be limitedly installed for continuous use, the sealing cover 109 is placed in the inner part of the groove 104, then the threaded rod 106 is rotated, under the limiting of the limiting rod 107, the semicircular block 108 is moved, and the two semicircular blocks 108 can fix the sealing cover 109.

[0028] The above are only the preferred embodiments of the present application, and are not intended to limit the present application in other forms, and any skilled person in the art can change or modify the above disclosed technology content to equivalent embodiments with equivalent changes applied to other fields, but any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present application without departing from the technical scheme of the present application still fall within the protection scope of the present application.

Claims

1. A multi-component gas mixture dispensing apparatus comprising: The mixing box (101) is characterized in that the outer surface top of the mixing box (101) is fixedly connected with a mixing pipe (103), the inner wall of the mixing pipe (103) is provided with a convex ring, the surface of the convex ring is provided with a filter screen (112), the outer surface top of the mixing pipe (103) is provided with a groove (104), the inside of the groove (104) is movably embedded with a sealing cover (109), the outer surface top of the sealing cover (109) is fixedly connected with two air conveying pipes (110), the inside of the two air conveying pipes (110) is provided with a one-way valve (111), and the outer surface of the mixing box (101) is fixedly connected with a control display (102).

2. The multi-component gas blending apparatus of claim 1, wherein: The outer surface top of the mixing box (101) is fixedly connected with two vertical plates (105), and the inside of the two vertical plates (105) is movably embedded with a threaded rod (106).

3. A multi-component gas blending apparatus as claimed in claim 2, wherein: The inside of the two vertical plates (105) is movably embedded with a limiting rod (107), and one end of the two threaded rods (106) is rotatably connected with a semicircle block (108) through a bearing.

4. The multi-component gas blending apparatus of claim 3, wherein: The two semicircle blocks (108) are located on the two sides of the outer surface of the sealing cover (109), and the outer surface of the filter screen (112) is provided with a clamping hole (117).

5. The multi-component gas dispensing apparatus of claim 4, wherein: The outer surface of the mixing pipe (103) is fixedly connected with a U-shaped block (113), and the inside of the U-shaped block (113) is movably embedded with a pull rod (114).

6. A multi-component gas blending apparatus as claimed in claim 5, wherein: One end of the pull rod (114) is fixedly connected with a limiting circular block (1151), and the limiting circular block (1151) is located on the outer surface of the mixing pipe (103).

7. The multi-component gas dispensing apparatus of claim 6, wherein: The outer surface of the limiting circular block (1151) is fixedly connected with a spring (115), one end of the spring (115) is fixedly connected on the outer surface of the U-shaped block (113).

8. The multi-component gas dispensing apparatus of claim 7, wherein: The outer surface of the limiting circular block (1151) is fixedly connected with a clamping rod (116), and the clamping rod (116) is movably embedded in the inside of the clamping hole (117).

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