Portable multi-gas flue gas analyzer

Abstract

The utility model discloses a portable multi-gas flue gas analyzer, which belongs to the field of multi-gas flue gas analyzers, and comprises a tank body, a gas outlet fixedly connected on the tank body, a gas inlet fixedly connected on the side surface of the gas outlet on the tank body, a bottom frame fixedly connected on the bottom surface of the tank body, and a moving mechanism movably mounted on the bottom frame, through the arranged moving mechanism, a handle block is rotated downwards, so that a screw rod pushes a universal wheel to move downwards, the universal wheel is moved out of a connecting shell and downwards penetrates through a roller groove to move to the lower position of a bottom frame, the analyzer is convenient to move and carry when going out, the universal wheel is convenient to store, and through the arranged flowing mechanism, the analyzer is convenient to move and carry when going out. The stepping motor slowly rotates to drive the rotating rod and the fan blades to rotate, and the fan blades rotate to stir the flue gas in the tank body, so that the flue gas flows more frequently, the heating process of the flue gas and the heating belt is more uniform, the temperature of the flue gas is more uniform, and the detection result is more accurate.

Description

Technical Field

[0001] The utility model relates to the field of multi-gas flue gas analyzers, and particularly relates to a portable multi-gas flue gas analyzer. Background Technique

[0002] Flue gas is a mixture of gas and soot, and is the main cause of polluting the atmosphere of residential areas. The composition of flue gas is very complex. The gas includes water vapor, sulfur dioxide, nitrogen, oxygen, carbon monoxide, carbon dioxide, hydrocarbons, nitrogen oxides, etc. The soot includes ash of fuel, coal particles, oil droplets, and high-temperature pyrolysis products, etc. Due to the wide range and multi-point nature of the flue gas generation location, the multi-gas flue gas analyzer needs to go to various different flue gas generation locations with the staff. However, the existing flue gas analyzers are not easy to carry out, and at the same time, the flue gas analyzer is provided with a heating belt to heat the gas. However, the flue gas is in a gas structure and fills the internal position of the instrument body, while the heating belt is only located on one side of the instrument body. The gas temperature at the position far from the heating belt is inconsistent with the gas temperature at the position where the heating belt is located, and the heat distribution is uneven, so the detection result is not accurate enough. Content of the Utility Model

[0003] The main purpose of the utility model is to provide a portable multi-gas flue gas analyzer, which can effectively solve the problems in the background technique.

[0004] To achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0005] A portable multi-gas flue gas analyzer, including a cell body, an air outlet is fixedly connected to the cell body, an air inlet is fixedly connected to the side of the cell body where the air outlet is located, a bottom frame is fixedly connected to the bottom surface position of the cell body, a moving mechanism is movably installed on the bottom frame, the moving mechanism includes a connecting shell, universal wheels, mounting blocks and screws, the connecting shell is fixedly connected to the bottom frame, the universal wheels are movably installed in the connecting shell, the universal wheels are fixedly connected to the lower position of the mounting blocks, the screws are fixedly connected to the upper position of the mounting blocks, a heating belt is fixedly connected inside the cell body, a transmitting end mirror and a receiving end mirror are fixedly connected to the left and right sides of the cell body, a flow mechanism is movably installed on the side of the cell body where the transmitting end mirror is located, the flow mechanism includes a rotating rod, a fan blade, a first gear and a second gear, the rotating rod is movably installed at one end position of the cell body, the fan blade is fixedly connected to one end of the rotating rod and is located inside the cell body, the first gear is fixedly connected to the other end of the rotating rod, and the second gear is movably installed with the first gear.

[0006] Preferably, a temperature sensor is fixedly connected to the lower position of the heating zone inside the cell body, a dimming observation port is fixedly connected to the side position of the heating zone inside the cell body, and the exit end mirror and the entrance end mirror are fixed to the inner wall of the cell body through brackets.

[0007] Preferably, the moving mechanism further includes a roller groove and a connecting sleeve. The roller groove is formed on the chassis, the connecting sleeve is fixedly connected to the connecting shell, the roller groove communicates with the connecting shell, and the screw rod is movably installed in the connecting sleeve.

[0008] Preferably, the moving mechanism further includes a handle block, a positioning bolt and a positioning hole. The handle block is fixedly connected to the upper end of the screw rod, the positioning bolt is movably installed on the handle block, and the positioning hole is formed on the connecting shell and located outside the connecting sleeve.

[0009] Preferably, the flow mechanism further includes a side bearing, and the rotating rod is movably installed on the cell body through the side bearing.

[0010] Preferably, the flow mechanism further includes a stepping motor. The stepping motor is fixedly connected to the outside of the cell body, and the second gear is fixedly connected to the output shaft of the stepping motor.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] In the utility model, through the provided moving mechanism, the handle block is rotated downward, so that the screw rod pushes the universal wheel downward to move, the universal wheel moves out of the connecting shell, and downward through the roller groove to the lower position of the chassis, making the analyzer easy to move and more convenient to carry out.

[0013] In the utility model, through the provided flow mechanism, the stepping motor rotates slowly, driving the rotating rod and the fan blades to rotate. The rotation of the fan blades agitates the flue gas in the cell body to flow, making the heating process of the flue gas and the heating zone more uniform, the temperature of the flue gas more uniform, and the detection result more accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic diagram of the overall internal structure of the utility model;

[0015] Figure 2 is a schematic diagram of the overall external structure of the utility model

[0016] Figure 3 is a schematic cross-sectional structure diagram of the connecting shell of the utility model;

[0017] Figure 4 is a schematic cross-sectional structure diagram of the cell body of the utility model.

[0018] In the figure: 1. Pool body; 2. Air outlet; 3. Air inlet; 4. Underframe; 5. Moving mechanism; 501. Roller groove; 502. Connecting shell; 503. Connecting sleeve; 504. Universal wheel; 505. Mounting block; 506. Screw; 507. Handle block; 508. Positioning bolt; 509. Positioning hole; 6. Dimming observation port; 7. Heating tape; 8. Temperature sensor; 9. Outlet end mirror; 10. Inlet end mirror; 11. Flow mechanism; 1101. Side bearing; 1102. Rotating rod; 1103. Fan blade; 1104. First gear; 1105. Second gear; 1106. Stepper motor; 12. Outer shell; 13. Display screen. Detailed implementation manners

[0019] To make the technical means, creative features, achieved purposes and functions of the present utility model easy to understand, the present utility model will be further described below in conjunction with the specific implementation manners.

[0020] Such as Figures 1 - 3As shown in the figure, a portable multi-gas flue gas analyzer includes a cell body 1. An outer shell 12 is provided outside the cell body 1, and the outer shell 12 is installed on a chassis 4 to protect the cell body 1 and other facilities. A display screen 13 is also installed on the surface of the outer shell 12 for displaying relevant data information of the analysis. An air outlet 2 is fixedly connected to the cell body 1, and an air inlet 3 is fixedly connected to the cell body 1 on the side of the air outlet 2. A chassis 4 is fixedly connected to the bottom surface of the cell body 1, and a moving mechanism 5 is movably installed on the chassis 4. The moving mechanism 5 includes a connecting shell 502, universal wheels 504, a mounting block 505, and a screw 506. The connecting shell 502 is fixedly connected to the chassis 4, the universal wheels 504 are movably installed in the connecting shell 502, the universal wheels 504 are fixedly connected to the lower position of the mounting block 505, and the screw 506 is fixedly connected to the upper position of the mounting block 505. A temperature sensor 8 is fixedly connected to the cell body 1 at a position below the heating belt 7, and a dimming observation port 6 is fixedly connected to the cell body 1 at a position on the side of the heating belt 7. The exit end mirror 9 and the entrance end mirror 10 are fixed to the inner wall of the cell body 1 through brackets. The moving mechanism 5 also includes a roller groove 501 and a connecting sleeve 503. The roller groove 501 is opened on the chassis 4, the connecting sleeve 503 is fixedly connected to the connecting shell 502, the roller groove 501 communicates with the connecting shell 502, and the screw 506 is movably installed in the connecting sleeve 503. The moving mechanism 5 also includes a handle block 507, a positioning bolt 508, and a positioning hole 509. The handle block 507 is fixedly connected to the upper end of the screw 506, the positioning bolt 508 is movably installed on the handle block 507, the positioning hole 509 is opened on the connecting shell 502 and is located outside the connecting sleeve 503. When the handle block 507 is rotated downward, the mounting block 505 and the universal wheels 504 below the screw 506 move downward, so that the universal wheels 504 move downward from the connecting shell 502 to a position below the chassis 4. The positioning bolt 508 is installed on the handle block 507, so that the lower end of the positioning bolt 508 is inserted into the corresponding positioning hole 509, thereby fixing the screw 506, facilitating the movement of the multi-gas flue gas analyzer and making it more convenient to carry out.

[0021] As Figure 1 , Figure 4As shown in the figure, a heating belt 7 is fixedly connected inside the pool body 1. Reflective mirrors 9 and 10 are fixedly connected to the left and right sides of the pool body 1. A flow mechanism 11 is movably installed on the side of the pool body 1 where the reflective mirror 9 is located. The flow mechanism 11 includes a rotating rod 1102, fan blades 1103, a first gear 1104, and a second gear 1105. The rotating rod 1102 is movably installed at one end of the pool body 1. The fan blades 1103 are fixedly connected to one end of the rotating rod 1102 and are located inside the pool body 1. The first gear 1104 is fixedly connected to the other end of the rotating rod 1102. The second gear 1105 is movably installed with the first gear 1104. The flow mechanism 11 further includes a side bearing 1101. The rotating rod 1102 is movably installed with the pool body 1 through the side bearing 1101. The flow mechanism 11 further includes a stepping motor 1106. The stepping motor 1106 is fixedly connected to the outside of the pool body 1. The second gear 1105 is fixedly connected to the output shaft of the stepping motor 1106. The fan blades 1103 stir the air flow in the pool body 1, making the air flow more frequent, making the air flow contact the position where the heating belt 7 is located more frequently, being heated more evenly, the flue gas temperature being more uniform, and making the detection result more accurate.

[0022] It should be noted that the present utility model is a portable multi-gas flue gas analyzer. This flue gas analyzer uses the spectral absorption method to measure gaseous substances and analyzes the flue gas. The basic theoretical basis for all methods of measuring gaseous substances using the spectral absorption method is the Beer-Lambert law, which is expressed by the formula:

[0023] I = I0·exp(-α·β·L)

[0024] Where: I is the light intensity after being absorbed by the measured gas;

[0025] I0 is the initial light intensity or the light intensity measured without the absorption gas;

[0026] β is a function related to the instrument and is a constant;

[0027] α is the gas absorption cross-section;

[0028] L is the gas absorption optical path.

[0029] As can be seen from the above formula, when the light beam passes through the absorption cell (optical path) containing the gas to be measured, the light intensity received by the detector will change. The amount of change in light intensity is directly related to the absorption cross-section and absorption optical path of the gas to be measured. When the light source used is determined, the absorption cross-section of the gas to be measured is also determined. Therefore, in order to further lower the measurement lower limit of the instrument, the only way is to increase the absorption optical path of the measured gas. If the optical path is doubled, the measurement lower limit will be reduced to 1 / 2 of the original. Rotate the handle block 507 of the analyzer downward so that the handle block 507 drives the screw 506 to rotate. The screw 506 rotates in the inner thread wall of the connecting sleeve 503. The mounting block 505 and the universal wheel 504 below the screw 506 move downward, so that the universal wheel 504 moves downward from the connecting shell 502, passes through the bottom frame 4 downward, and moves to the lower position of the bottom frame 4. Move the handle block 507 close to the connecting shell 502 and stay in a suitable position, then stop rotating. Install the positioning bolt 508 on the handle block 507 so that the lower end of the positioning bolt 508 inserts into the corresponding positioning hole 509, thereby fixing the screw 506, which is convenient for the multi-gas flue gas analyzer to move. Start the stepping motor 1106, so that the second gear 1105 rotates and drives the first gear 1104 to rotate, so that the rotating rod 1102 rotates through the side bearing 1101. The fan blade 1103 fixedly connected to one end of the rotating rod 1102 rotates synchronously in the cell body 1, so that the fan blade 1103 agitates the air flow in the cell body 1, making the air flow more frequent, making the air flow contact the position where the heating belt 7 is located more frequently, being heated more evenly, the flue gas temperature being more uniform, and the detection result being more accurate.

[0030] The above shows and describes the basic principles, main features and advantages of the present invention. It is only a preferred embodiment of the present invention, and its description is relatively specific and detailed. However, it cannot be understood as a limitation to the scope of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. Without departing from the principles and purposes of the present invention, various changes, modifications, substitutions and deformations can be made to the embodiments, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A portable multi-gas flue gas analyzer, comprising a cell body (1), a gas outlet (2) fixedly connected to the cell body (1), a gas inlet (3) fixedly connected to the cell body (1) at the side of the gas outlet (2), and a bottom frame (4) fixedly connected to the bottom of the cell body (1), characterized in that: A moving mechanism (5) is movably mounted on the base frame (4), and the moving mechanism (5) comprises a connecting shell (502), a universal wheel (504), a mounting block (505) and a screw rod (506). The connecting shell (502) is fixedly connected to the base frame (4), the universal wheel (504) is movably mounted on the connecting shell (502), the universal wheel (504) is fixedly connected to a position below the mounting block (505), and the screw rod (506) is fixedly connected to a position above the mounting block (505). A heating belt (7) is fixedly connected inside the cell body (1), and an output end reflector (9), an incident end reflector (9) and a heating belt (7) are fixedly connected to the left and right sides of the cell body (1). The invention relates to a reflection mirror (10), wherein a flow mechanism (11) is movably mounted on the pool body (1) at a side position of the reflection mirror (9) at the output end, and the flow mechanism (11) comprises a rotating rod (1102), a fan blade (1103), a first gear (1104) and a second gear (1105), wherein the rotating rod (1102) is movably mounted at one end position of the pool body (1), the fan blade (1103) is fixedly connected to one end position of the rotating rod (1102) and is located in the pool body (1), the first gear (1104) is fixedly connected to the other end position of the rotating rod (1102), and the second gear (1105) is movably mounted on the first gear (1104).

2. A portable multi-gas flue gas analyzer according to claim 1, characterized in that: A temperature sensor (8) is fixedly connected to the cell body (1) at a position below the heating belt (7), a dimming observation port (6) is fixedly connected to the cell body (1) at a position on the side of the heating belt (7), and the output end reflector (9) and the incident end reflector (10) are fixed to the inner wall of the cell body (1) via a bracket.

3. A portable multi-gas flue gas analyzer according to claim 2, characterized in that: The moving mechanism (5) further comprises a roller groove (501) and a connecting sleeve (503); the roller groove (501) is provided on the base frame (4); the connecting sleeve (503) is fixedly connected to the connecting shell (502); the roller groove (501) and the connecting shell (502) are interconnected; and the screw rod (506) is movably mounted in the connecting sleeve (503).

4. A portable multi-gas flue gas analyzer according to claim 3, characterized in that: The moving mechanism (5) further comprises a handle block (507), a positioning bolt (508) and a positioning hole (509); the handle block (507) is fixedly connected to the upper end of the screw rod (506); the positioning bolt (508) is movably mounted on the handle block (507); and the positioning hole (509) is provided on the connecting shell (502) and is located at the outer side of the connecting sleeve (503).

5. A portable multi-gas flue gas analyzer according to claim 4, characterized in that: The flow mechanism (11) further comprises a side bearing (1101), and the rotating rod (1102) is movably mounted on the pool body (1) via the side bearing (1101).

6. A portable multi-gas flue gas analyzer according to claim 5, characterized in that: The flow mechanism (11) further comprises a stepping motor (1106), wherein the stepping motor (1106) is fixedly connected to the outer side of the pool body (1), and the second gear (1105) is fixedly connected to the output shaft of the stepping motor (1106).

7. A portable multi-gas flue gas analyzer according to claim 1, characterized in that: The pool body (1) is provided with a shell (12) on the outside. The shell (12) is mounted on a base frame (4). A display screen (13) is also mounted on the surface of the shell (12).

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