Equal-proportion gas dilution device

Abstract

The utility model discloses an equal-proportion gas dilution device, which relates to the field of gas dilution and comprises a gas chamber, a first gas inlet pipe is fixedly arranged at the top of the gas chamber, a first gas flow valve is arranged on the pipe wall of the first gas inlet pipe, and a second gas inlet pipe is fixedly arranged on one side of the gas chamber. A second gas flow valve is arranged on the pipe wall of the second gas inlet pipe, a gas outlet pipe is fixedly arranged on the other side of the gas chamber, and a switch valve is arranged on the pipe wall of the gas outlet pipe; a rotating shaft is rotationally arranged at the bottom of the gas chamber, and turbulent flow fan blades are fixedly arranged on the shaft wall of the rotating shaft. By means of the innovative mechanical structure design, the problems that a traditional electric drive type gas diluting device is high in cost and inconvenient to carry are successfully solved, and meanwhile the gas diluting device has the advantages of accurately controlling gas flow, effectively enhancing the gas mixing effect, being easy and convenient to operate, good in visibility and the like. The method can be widely applied to multiple fields of environment monitoring, industrial waste gas treatment, laboratory research and the like.

Description

TECHNICAL FIELD

[0001] The utility model relates to gas dilution field, concretely relates to a kind of equal proportion gas dilution device. BACKGROUND

[0002] In environmental monitoring, such as the concentration measurement of atmospheric pollutants, the concentration of the collected original gas sample may be too high to exceed the range of the detection instrument, and needs to be diluted. When treating industrial waste gas, the performance of the waste gas treatment equipment needs to be evaluated by diluting the high-concentration waste gas in proportion. In laboratory research, different experiments have different requirements for gas concentration, and multiple concentration gas samples often need to be prepared.

[0003] The traditional gas dilution methods mainly include static dilution method and dynamic dilution method. The static dilution method is complicated to operate, and the accuracy of each dilution is greatly affected by human factors. The dynamic dilution method usually includes a complex motor drive system, a precise flow sensor, a controller, and corresponding circuit and power module, etc. Although the accuracy is high, the cost is expensive. Moreover, the large number of electronic components and complex structure of the electrically driven device make the overall volume and weight of the device larger. In some scenes requiring on-site detection or mobile operation, such as real-time monitoring of atmospheric pollutants by environmental monitoring personnel in the wild, rapid detection and analysis of waste gas by industrial technicians in different workshops, etc., it is inconvenient to carry and transport, which limits its flexibility and universality in practical application.

[0004] Therefore, an equal-proportion gas dilution device is proposed. CONTENT OF THE UTILITY MODEL

[0005] In view of the above problems existing in the prior art gas dilution device, the utility model is proposed.

[0006] Therefore, the utility model aims to provide an equal-proportion gas dilution device to solve the problems raised in the background art.

[0007] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0008] An equal-proportion gas dilution device includes a gas chamber, a first gas inlet pipe is fixedly arranged at the top of the gas chamber, and a first gas flow valve is arranged on the pipe wall of the first gas inlet pipe, a second gas inlet pipe is fixedly arranged on one side of the gas chamber, and a second gas flow valve is arranged on the pipe wall of the second gas inlet pipe, and a gas outlet pipe is fixedly arranged on the other side of the gas chamber, and an on-off valve is arranged on the pipe wall of the gas outlet pipe; a rotating shaft is rotatably arranged at the bottom of the gas chamber, a turbulence fan blade is fixedly arranged on the shaft wall of the rotating shaft, a shell is fixedly arranged at the bottom of the gas chamber, the lower end of the rotating shaft extends into the interior of the shell and is fixedly provided with a winding wheel, a pull rope is wound on the wheel wall of the winding wheel, and a torsional spring is sleeved on the shaft wall of the rotating shaft, and the two ends of the torsional spring are fixedly connected with the winding wheel and the shell respectively.

[0009] Preferably, the bottom of the gas chamber is fixedly embedded with a sealing bearing, and the shaft wall of the rotating shaft is rotatably connected with the bottom of the gas chamber through the sealing bearing.

[0010] Preferably, one side of the shell is fixedly embedded with a sliding sleeve, and one end of the pull rope is slidably arranged through the inside of the sliding sleeve and fixedly provided with a pull ring.

[0011] Preferably, the inner side wall of the gas chamber is fixedly provided with two rows of multiple evenly distributed flow guide columns, and the two rows of flow guide columns are arranged in an inverted m-shaped distribution.

[0012] Further, the side wall of the gas chamber is provided with a gas transparent observation window in the vertical direction.

[0013] Preferably, the two side top portions of the gas chamber are fixedly provided with U-shaped handles.

[0014] In the above technical scheme, the technical effects and advantages provided by the utility model are as follows:

[0015] 1. Low cost and convenient to carry, improve the application flexibility: the device adopts a manual mechanical structure to realize gas mixing, which significantly reduces the cost; the U-shaped handle arranged at the two side top portions of the gas chamber is convenient for the user to carry by hand, so that the device is more compact and light in overall structure; in the scene of field environment monitoring or mobile detection in different workshops, the staff can easily carry the device to the designated place for gas dilution operation without relying on large power supply or complex transportation equipment, which greatly improves the application flexibility of the device and effectively solves the problems of inconvenient carrying and high cost of the traditional device.

[0016] 2. Accurately control the gas flow to ensure equal proportion dilution: the first gas flow valve and the second gas flow valve arranged on the first gas inlet pipe and the second gas inlet pipe respectively can accurately adjust the flow of the two kinds of gases (the measured gas and the dilution gas) entering the gas chamber, and the operator can accurately control the gas inlet amount of the two kinds of gases by adjusting the opening degree of the flow valve according to the actual required dilution ratio, so as to ensure the realization of equal proportion dilution and improve the precision and accuracy of gas dilution.

[0017] 3. Effectively enhance the gas mixing effect and ensure the uniformity of the gas: the turbulence fan blades in the gas chamber play a key role in stirring during the gas flow process. When the gas enters the gas chamber from the gas inlet pipe, the flow state of the gas is disturbed under the action of the turbulence fan blades, forming complex turbulent flow, so that the two kinds of gases can fully contact and mix. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to make the technical scheme of the embodiments of the present application or the prior art clearer, the drawings needed in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments described in the present application, and other drawings can also be obtained by those skilled in the art according to these drawings.

[0019] Figure 1 It is a three-dimensional structure schematic view of the present application.

[0020] Figure 2 It is a sectional plane view of the present application.

[0021] Figure 3 It is a sectional plane view of the present application. Figure 2 It is a sectional plane view of the present application.

[0022] Explanation of reference signs:

[0023] 1, gas chamber; 2, first gas inlet pipe; 3, first gas flow valve; 4, second gas inlet pipe; 5, second gas flow valve; 6, gas outlet pipe; 7, on-off valve; 8, rotating shaft; 9, turbulence fan blade; 10, shell; 11, winding wheel; 12, pull rope; 13, torsional spring; 14, sealing bearing; 15, sliding sleeve; 16, pull ring; 17, flow guide column; 18, gas transparent observation window; 19, U-shaped handle. Specific implementation

[0024] In order to make the technical scheme of the present application better understood by those skilled in the art, the present application will be further described in detail below with reference to the drawings.

[0025] The present application provides a Figures 1-2The illustrated one is a kind of equal proportion gas dilution device, including gas chamber 1, the top of gas chamber 1 is fixed with first air inlet pipe 2, and the pipe wall of first air inlet pipe 2 is provided with first gas flow valve 3, one side of gas chamber 1 is fixed with second air inlet pipe 4, and the pipe wall of second air inlet pipe 4 is provided with second gas flow valve 5, the other side of gas chamber 1 is fixed with air outlet pipe 6, and the pipe wall of air outlet pipe 6 is provided with on-off valve 7, the side wall of gas chamber 1 is provided with gas transparent observation window 18 along the vertical direction, which is convenient for operator to observe the mixing condition of gas in gas chamber 1 in real time, including the color, state and whether there is obvious stratification phenomenon of gas; The top of both sides of gas chamber 1 is fixed with U-shaped handle 19, which is convenient for operator to carry by hand, so that the device is more compact and light in overall structure; The first gas flow valve 3 and the second gas flow valve 5 arranged on the first air inlet pipe 2 and the second air inlet pipe 4 respectively can accurately adjust the flow of two kinds of gas (measured gas and dilution gas) entering the gas chamber 1, and the operator can accurately control the air intake of two kinds of gas by adjusting the opening of the flow valve according to the actual need of dilution ratio, so as to ensure the realization of equal proportion dilution.

[0026] As shown in the figure, Figures 2-3 The bottom of gas chamber 1 is rotatably provided with rotating shaft 8, the bottom of gas chamber 1 is fixedly embedded with sealing bearing 14, the shaft wall of rotating shaft 8 is rotatably connected with the bottom of gas chamber 1 through sealing bearing 14, the rotating sealing property between rotating shaft 8 and gas chamber 1 is increased, the shaft wall of rotating shaft 8 is fixedly provided with turbulence fan blade 9, the bottom of gas chamber 1 is fixedly provided with shell 10, the lower end of rotating shaft 8 extends to the inside of shell 10 and is fixedly provided with winding wheel 11, the wheel wall of winding wheel 11 is wound with pull rope 12, one side of shell 10 is fixedly embedded with sliding sleeve 15, one end of pull rope 12 is slidably inserted into the inside of sliding sleeve 15 and is fixedly provided with pull ring 16, the shaft wall of rotating shaft 8 is sleeved with torsional spring 13, and the two ends of torsional spring 13 are fixedly connected with winding wheel 11 and shell 10 respectively, when the gas needs to be mixed, the operator pulls pull ring 16 with hand, so that pull rope 12 drives winding wheel 11, winding wheel 11 can drive rotating shaft 8 and turbulence fan blade 9 to rotate together, so that the gas in the inside of gas chamber 1 can be mixed, when the operator removes the external force on pull ring 16, at this time, torsional spring 13 applies torsional force to winding wheel 11 and rotating shaft 8, so that turbulence fan blade 9 and winding wheel 11 rotate reversely and wind pull rope 12, which is convenient for pulling winding wheel 11 again.

[0027] As shown in the figure, Figure 2As shown, the inner side wall of the gas chamber 1 is fixedly provided with two rows of multiple evenly distributed flow guide columns 17, and the two rows of flow guide columns 17 are arranged in an inverted m-shaped distribution, the flow guide columns 17 play a guiding and shunting role on the flow of the gas, so that the gas is again shunted and turned after being stirred by the turbulence fan blades 9, the collision opportunity of the gas molecules is increased, thereby more effectively realizing the uniform mixing of the gas, ensuring that the concentration of the diluted gas discharged from the gas outlet pipe is uniform and consistent, and improving the quality of the gas dilution.

[0028] The above only describes certain exemplary embodiments of the present application by way of illustration, without doubt, for those skilled in the art, without departing from the spirit and scope of the present application, the described embodiments can be modified in various ways. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the present application.

Claims

1. An isobaric gas dilution device comprising a gas chamber (1), characterized in that: The top of the gas chamber (1) is fixedly provided with a first gas inlet pipe (2), and the pipe wall of the first gas inlet pipe (2) is provided with a first gas flow valve (3); one side of the gas chamber (1) is fixedly provided with a second gas inlet pipe (4), and the pipe wall of the second gas inlet pipe (4) is provided with a second gas flow valve (5); the other side of the gas chamber (1) is fixedly provided with a gas outlet pipe (6), and the pipe wall of the gas outlet pipe (6) is provided with an on-off valve (7). The bottom of the gas chamber (1) is rotatably provided with a rotating shaft (8), the shaft wall of the rotating shaft (8) is fixedly provided with a turbulence fan blade (9), the bottom of the gas chamber (1) is fixedly provided with a shell (10), the lower end of the rotating shaft (8) extends into the inside of the shell (10) and is fixedly provided with a winding wheel (11), the wheel wall of the winding wheel (11) is wound with a pull rope (12), the shaft wall of the rotating shaft (8) is sleeved with a torsional spring (13), and the two ends of the torsional spring (13) are fixedly connected with the winding wheel (11) and the shell (10) respectively.

2. The isoflation device of claim 1, wherein: The bottom of the gas chamber (1) is fixedly embedded with a sealing bearing (14), and the shaft wall of the rotating shaft (8) is rotatably connected with the bottom of the gas chamber (1) through the sealing bearing (14).

3. The isoflation device of claim 1, wherein: One side of the shell (10) is fixedly embedded with a sliding sleeve (15), one end of the pull rope (12) slides through the inside of the sliding sleeve (15) and is fixedly provided with a pull ring (16).

4. The isoflation device of claim 1, wherein: The inner side wall of the gas chamber (1) is fixedly provided with two rows of multiple evenly distributed flow guide columns (17), and the two rows of flow guide columns (17) are arranged in an inverted eight-character shape.

5. The isoflation device of claim 1, wherein: The side wall of the gas chamber (1) is provided with a gas transparent observation window (18) in the vertical direction.

6. The isoflation device of claim 1, wherein: The top of the two sides of the gas chamber (1) is fixedly provided with a U-shaped handle (19). The top of the two sides of the gas chamber (1) is fixedly provided with a U-shaped handle (19).

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