A calibration device for measuring the temperature of a smoke gun of a smoke gas sampling analyzer

Abstract

The utility model discloses a kind of calibration devices for measuring smoke gun temperature of smoke dust smoke sampling analyzer, belong to temperature calibration equipment technical field, the device includes calibrator shell, temperature controller fixed at the top end of calibrator shell and the heat preservation structure being arranged in calibrator shell, the heat preservation structure includes fixedly connected with the electric heating stainless steel filter cartridge of temperature controller bottom, fixedly connected with the brushless motor of electric heating stainless steel filter cartridge one end, and by brushless motor output end through the electric heating stainless steel filter cartridge and fixedly connected fan, the device also includes opening and closing structure.The utility model passes through the fan and is arranged in the inside of heating cavity and is forced hot air circulation, solve the problem of uneven temperature field, significantly improve calibration accuracy;Simultaneously through the opening and closing structure of linkage, it solves the problem that clamping is complicated, realizes the clamping of quick and convenient and clamping reliable.

Description

Technical Field

[0001] This utility model relates to the field of temperature calibration equipment technology, and in particular to a calibration device for measuring the temperature of the smoke gun in a smoke and dust sampling analyzer. Background Technology

[0002] Smoke and flue gas sampling and analysis instruments are key equipment in the field of environmental monitoring. During the sampling process, the temperature of the smoke gun is a crucial parameter for ensuring the accuracy of the sampling data. To guarantee the reliability of the temperature sensor readings, the temperature measurement system of the smoke gun needs to be calibrated regularly.

[0003] Existing calibration methods typically involve inserting the nozzle head into a heating device. These devices heat a metal block or cavity using an electric heating element, placing the nozzle head in a high-temperature environment, and then comparing the readings from the nozzle's temperature sensor with those from a standard thermometer.

[0004] However, in practical applications, it has been found that traditional heating devices heavily rely on natural convection and radiation for heat transfer. This leads to significant temperature gradients within the heating chamber, especially in the vertical or horizontal directions, resulting in insufficient temperature uniformity within the chamber. The actual temperature at different locations on the nozzle head may differ from the temperature measured by a standard thermometer.

[0005] Therefore, this invention proposes a calibration device for measuring the temperature of the smoke gun in a smoke and dust sampling analyzer to address the shortcomings of existing technologies. Utility Model Content

[0006] To overcome the above shortcomings, this utility model provides a calibration device for measuring the temperature of the smoke gun in a flue gas sampling analyzer, aiming to improve the technical problem of inference in the prior art: the existing smoke gun temperature calibration device has insufficient internal temperature field uniformity during calibration, resulting in low calibration accuracy.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: a calibration device for measuring the temperature of the smoke gun of a smoke and dust sampling analyzer, comprising: a calibrator housing, a temperature controller, and a heat insulation structure.

[0008] The heat insulation structure is disposed inside the calibrator housing, and the temperature controller is fixed to the top of the calibrator housing. The heat insulation structure includes an electrically heated stainless steel filter cartridge, a brushless motor, and a fan. The electrically heated stainless steel filter cartridge is fixedly connected to the bottom of the temperature controller, and the brushless motor is fixedly connected to one end of the electrically heated stainless steel filter cartridge. The output end of the brushless motor passes through the electrically heated stainless steel filter cartridge and is fixedly connected to the fan.

[0009] Preferably, the calibration device further includes an opening and closing structure, which includes a guide plate, a rotating disk, a lever, an opening and closing plate, and a slide rod. The guide plate is fixedly connected to one side of the calibrator housing. The rotating disk is rotatably connected to one side of the calibrator housing. The lever is fixedly connected to the outer wall of the rotating disk. The opening and closing plate is located between the rotating disk and the guide plate. The slide rod is fixedly connected to and passes through the opening and closing plate, with one end of the slide rod slidably connected in a groove in the guide plate and the other end of the slide rod slidably connected in a groove in the rotating disk.

[0010] Preferably, the insulation structure further includes an insulation felt layer, which is sleeved outside the electrically heated stainless steel filter cartridge and located inside the calibrator housing.

[0011] Preferably, the insulation structure further includes a mesh screen, which is disposed on one side of the fan.

[0012] Preferably, the heat insulation structure further includes a head heat insulation felt, which is disposed at the inlet of the electrically heated stainless steel filter cartridge.

[0013] Preferably, the calibration device further includes a handle that is rotatably connected to the top of the calibrator housing.

[0014] This utility model has the following beneficial effects:

[0015] 1. This utility model solves the problems of uneven temperature field and temperature gradient inside the calibration device, which leads to low calibration accuracy, by setting a motor and a fan inside the heating cavity and using the rotation of the fan to force hot air circulation inside the cavity. It achieves the effect of forming a highly uniform and stable reference temperature field and significantly improving calibration accuracy.

[0016] 2. This utility model solves the problems of cumbersome operation, inaccurate positioning, or unstable clamping of the head of the cigarette gun to be tested in the prior art by setting an opening and closing structure that is precisely linked by a dial plate, a rotating disk, a sliding rod, and an opening and closing plate, thus achieving the effect of convenient operation, quick clamping, and reliable fixation. Attached Figure Description

[0017] Figure 1 This is a perspective view of a calibration device for measuring the temperature of a smoke gun in a flue gas sampling and analysis instrument, as proposed in this utility model.

[0018] Figure 2 This is a cross-sectional schematic diagram of the heat insulation layer of the insulation felt in a calibration device for measuring the temperature of the smoke gun of a flue gas sampling analyzer, as proposed in this utility model.

[0019] Figure 3This is a cross-sectional schematic diagram of the calibrator housing of a calibration device for measuring the temperature of a smoke gun in a flue gas sampling analyzer, as proposed in this utility model.

[0020] Figure 4 This is a cross-sectional schematic diagram of the opening and closing plate of a calibration device for measuring the temperature of a smoke gun in a flue gas sampling analyzer, as proposed in this utility model.

[0021] Figure 5 This is a schematic diagram of the rotating disk of a calibration device for measuring the temperature of a smoke gun in a flue gas sampling analyzer, as proposed in this utility model.

[0022] Legend:

[0023] 1. Calibrator housing; 2. Handle; 3. Temperature controller; 4. Smoke gun head; 5. Insulation structure; 501. Head insulation felt; 502. Insulation layer of insulation felt; 503. Electric heating stainless steel filter cartridge; 504. Brushless motor; 505. Fan; 506. Net; 6. Opening and closing structure; 601. Guide plate; 602. Paddle plate; 603. Rotating disc; 604. Slide rod; 605. Opening and closing plate. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Reference Figures 1-5 This utility model provides an embodiment of a calibration device for measuring the temperature of a smoke gun in a flue gas sampling analyzer. The device includes a calibrator housing 1, which serves as the mounting base for the entire device. A temperature controller 3 is fixedly connected to the top of the calibrator housing 1. An insulation structure 5 is provided inside the calibrator housing 1. The insulation structure 5 includes an electrically heated stainless steel filter cartridge 503, which is fixedly connected to the bottom of the temperature controller 3. A brushless motor 504 is fixedly connected to one end of the electrically heated stainless steel filter cartridge 503. The output end of the brushless motor 504 passes through the electrically heated stainless steel filter cartridge 503. A fan 505 is fixedly connected inside the electrically heated stainless steel filter cartridge 503 at the output end of the brushless motor 504. The fan 505 is used to uniformly heat the internal temperature of the electrically heated stainless steel filter cartridge 503.

[0026] The opening and closing structure 6 includes a guide plate 601 with a groove extending along a specific trajectory. The guide plate 601 is fixedly connected to one side of the calibrator housing 1. The guide plate 601 provides precise guidance and limitation for the movement of the slide rod 604. The opening and closing structure 6 also includes a rotating disk 603, which is rotatably connected to one side of the calibrator housing 1. A lever 602 is fixedly connected to the outer wall of the rotating disk 603, and the surface of the rotating disk 603 is also provided with a groove. At the same time, the opening and closing structure 6 is provided with a slide rod 604. In the assembled state, one end of the slide rod 604 is slidably connected in the groove of the guide plate 601, and the other end of the slide rod 604 is slidably connected in the groove of the rotating disk 603. The sliding connection within the groove, with the opening and closing plate 605 located between the rotating disk 603 and the guide plate 601, and the slide rod 604 fixedly connected and passing through the opening and closing plate 605, drives the rotating disk 603 to rotate via the lever plate 602, thereby causing the slide rod 604 to move in linkage under the double groove constraint of the guide plate 601 and the rotating disk 603. This structure ensures that the opening and closing plate 605 can be stably translated to open or closed and clamped when the operator pushes the lever plate 602. As for the specific driving method of the lever plate 602, those skilled in the art can use various conventional methods such as manual pushing or connecting a motor. If it is driven by a motor, its specific internal structure is a well-known technology in the field and will not be described in detail here.

[0027] To achieve thermal insulation and reduce heat loss, the insulation structure 5 also includes a thermal insulation felt layer 502, which is fitted over the electrically heated stainless steel filter cartridge 503 and located inside the calibrator housing 1. To prevent foreign objects from colliding with and damaging the fan, the insulation structure 5 also includes a baffle 506, which is located on one side of the fan 505. To keep the heating chamber inlet insulated and sealed, the insulation structure 5 also includes a head thermal insulation felt 501, which is located at the inlet of the electrically heated stainless steel filter cartridge 503. To facilitate carrying and moving the equipment, the calibration device also includes a handle 2, which is rotatably connected to the top of the calibrator housing 1.

[0028] Working principle: When the opening and closing structure 6 needs to be operated, the operator pushes the lever 602, which drives the rotating disk 603 to rotate. The groove of the rotating disk 603 and the groove of the guide plate 601 together constrain the movement trajectory of the slide rod 604. The slide rod 604 is fixedly connected and drives the opening and closing plate 605 to move, thereby opening or closing the opening and closing plate 605.

[0029] When the device is calibrating, the temperature controller 3 controls the electric heating stainless steel filter cartridge 503 to heat up. At the same time, the brushless motor 504 starts and drives the fan 505 to rotate. The fan 505 forces the air inside the electric heating stainless steel filter cartridge 503 to circulate. The heat insulation layer 502 and the head heat insulation layer 501 reduce the loss of heat to the calibrator housing 1 and the external environment. Through the synergistic effect of the circulation of the fan 505 and the heat insulation of the insulation structure 5, a stable and uniform temperature field is formed inside the electric heating stainless steel filter cartridge 503. The net 506 protects the fan 505 from collisions during this process, and the handle 2 makes it easy to carry the entire device.

Claims

1. A calibration device for measuring the temperature of the smoke gun in a flue gas sampling and analysis instrument, comprising: The calibrator housing (1) and the temperature controller (3) are fixed to the top of the calibrator housing (1); Thermal insulation structure (5) is disposed inside the calibrator housing (1); The opening and closing structure (6) is used to clamp the head of the cigarette gun (4); Its features are: The heat preservation structure (5) includes: an electrically heated stainless steel filter cartridge (503), a brushless motor (504), and a fan (505). The electrically heated stainless steel filter cartridge (503) is fixedly connected to the bottom of the temperature controller (3). The brushless motor (504) is fixedly connected to one end of the electrically heated stainless steel filter cartridge (503). The output end of the brushless motor (504) passes through the electrically heated stainless steel filter cartridge (503) and is fixedly connected to the fan (505). The opening and closing structure (6) includes: a guide plate (601), a rotating disk (603), a lever (602), an opening and closing plate (605), and a slide rod (604). The guide plate (601) is fixedly connected to one side of the calibrator housing (1). The rotating disk (603) is rotatably connected to one side of the calibrator housing (1). The lever (602) is fixedly connected to the outer wall of the rotating disk (603). The opening and closing plate (605) is located between the rotating disk (603) and the guide plate (601). The slide rod (604) is fixedly connected to and passes through the opening and closing plate (605). One end of the slide rod (604) is slidably connected in the groove of the guide plate (601), and the other end of the slide rod (604) is slidably connected in the groove of the rotating disk (603).

2. The calibration device for measuring the temperature of the smoke gun in a flue gas sampling analyzer according to claim 1, characterized in that: The insulation structure (5) also includes an insulation felt heat insulation layer (502), which is sleeved outside the electrically heated stainless steel filter cylinder (503) and located inside the calibrator housing (1).

3. The calibration device for measuring the temperature of the smoke gun in a flue gas sampling analyzer according to claim 1, characterized in that: The insulation structure (5) also includes a screen (506), which is located on one side of the fan (505).

4. A calibration device for measuring the temperature of a smoke gun in a flue gas sampling and analysis instrument according to claim 1, characterized in that: The insulation structure (5) also includes a head insulation felt (501), which is fitted over the outside of the head of the smoke gun (4).

5. A calibration device for measuring the temperature of a smoke gun in a flue gas sampling analyzer according to claim 1, characterized in that: It also includes a handle (2) which is rotatably connected to the top of the calibrator housing (1).

6. A calibration device for measuring the temperature of a smoke gun in a flue gas sampling analyzer according to claim 2, characterized in that: The insulation structure (5) also includes a screen (506), which is located on one side of the fan (505).

7. A calibration device for measuring the temperature of a smoke gun in a flue gas sampling analyzer according to claim 6, characterized in that: The insulation structure (5) also includes a head insulation felt (501), which is fitted over the outside of the head of the smoke gun (4).

8. A calibration device for measuring the temperature of a smoke gun in a flue gas sampling analyzer according to claim 7, characterized in that: It also includes a handle (2) which is rotatably connected to the top of the calibrator housing (1).

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