Tail gas purifier with flow adjusting function

Abstract

The tail gas purifier with the flow adjusting function comprises a draught fan, a valve, a main pipeline, an auxiliary pipeline, a temperature control device and a catalysis box, the draught fan is communicated with a production furnace and used for conveying tail gas in the production furnace to the catalysis box, the valve is communicated with the draught fan, and the two ends of the main pipeline and the two ends of the auxiliary pipeline are all communicated with the valve and the temperature control device. Flowmeters are arranged on the main pipeline and the auxiliary pipeline, the temperature control device is communicated with the catalysis box, and the catalysis box contains a catalyst for purifying tail gas; according to the tail gas purifier with the flow adjusting function, the two flow meters with different measuring ranges and the auxiliary pipeline and the main pipeline with different pipe diameters can be selected according to the tail gas flow, so that the tail gas catalytic flow is accurately detected, the tail gas exhaust flow is obtained in cooperation with a production furnace flow sensor in production, and the tail gas flow difference value is calculated; the control assembly adjusts the power of the draught fan, the exhaust emission flow and the exhaust catalytic flow generated by the production furnace are balanced, and the optimal exhaust purification efficiency is guaranteed.

Description

Technical Field

[0001] The utility model relates to tail gas treatment technology, in particular to a tail gas purifier with a flow regulating function. Background Art

[0002] The tail gas purifier is a device that purifies tail gas under the action of a catalyst to reduce pollution to the environment. When high-temperature tail gas flows through a carrier coated with a catalyst made of precious metal materials, harmful substances in the tail gas undergo a chemical reaction under the action of the catalyst and temperature.

[0003] Existing exhaust gas purifiers are generally directly connected to the production furnace without detecting the exhaust gas flow entering the purifier, resulting in an imbalance between the exhaust gas flow generated by the production furnace and the treated and purified air flow, causing the air pressure in the production furnace to be too high, exhaust gas leaking from the production furnace to the production workshop, or causing the air pressure in the furnace to be too low, affecting production efficiency and even causing the inability to carry out normal industrial production. Utility Model Content

[0004] In order to solve the defects of the above-mentioned prior art, the utility model provides an exhaust gas purifier with a flow regulation function, which can select different flow meters according to the exhaust gas flow, so as to accurately detect the exhaust gas flow, and then adjust the exhaust gas flow rate generated by the production furnace and the exhaust gas flow rate of the treatment and purification.

[0005] To achieve the above technical objectives, the utility model adopts the following technical solutions: an exhaust gas purifier with a flow regulation function, connected to a production furnace, comprising a fan, a valve, a main pipeline, a secondary pipeline, a temperature control device and a catalyst box, the fan being connected to the production furnace, the fan being used to transport the exhaust gas in the production furnace to the catalyst box, the valve being connected to the fan, both ends of the main pipeline and the secondary pipeline being connected to the valve and the temperature control device, the main pipeline and the secondary pipeline being provided with flow meters, the temperature control device being connected to the catalyst box, and the catalyst box containing a catalyst for purifying the exhaust gas.

[0006] Preferably, the diameter of the main pipeline is larger than the diameter of the secondary pipeline, and the range of the flow meter arranged on the main pipeline is larger than the range of the flow meter arranged on the secondary pipeline.

[0007] Preferably, the temperature control device comprises a thermometer and a heater, the thermometer is used to detect the exhaust gas temperature, and the heater is used to heat the exhaust gas temperature to a catalytic temperature.

[0008] Preferably, a flow sensor is provided on the production furnace, and the flow sensor is used to detect the flow rate of exhaust gas discharged from the production furnace.

[0009] Preferably, an exhaust gas purifier with flow regulation function further includes a control component, and the control component is electrically connected to the thermometer, the heater, two flow meters, the flow sensor, the valve and the fan.

[0010] Preferably, the catalyst box is connected to an exhaust chimney, and the exhaust chimney is used to discharge the purified exhaust gas into the atmosphere.

[0011] In summary, the utility model has achieved the following technical effects:

[0012] The exhaust gas purifier with flow regulation function of the utility model can select two flow meters with different ranges, and auxiliary pipes and main pipes with different diameters according to the exhaust gas flow, so as to accurately detect the exhaust gas catalytic flow, and then cooperate with the exhaust gas discharge flow obtained by the production furnace flow sensor in production, calculate the exhaust gas flow difference, and control the component to adjust the fan power, balance the exhaust gas emission flow generated by the production furnace and the exhaust gas catalytic flow, to ensure the best exhaust gas purification efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the exhaust gas purifier with flow regulating function of the utility model;

[0014] Explanation of the reference numerals in the specification: 1. production furnace; 2. fan; 3. valve; 4. main pipeline; 5. secondary pipeline; 6. flow meter; 7. thermometer; 8. heater; 9. catalyst box; 10. exhaust chimney. DETAILED DESCRIPTION

[0015] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0016] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

[0017] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0018] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0019] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0020] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0021] Embodiment 1:

[0022] like Figure 1 As shown, an exhaust gas purifier with flow regulation function is connected to a production furnace 1, comprising a fan 2, a valve 3, a main pipeline 4, a secondary pipeline 5, a temperature control device and a catalyst box 9, wherein the fan 2 is connected to the production furnace 1, and the fan 2 is used to transport the exhaust gas in the production furnace 1 to the catalyst box 9, the valve 3 is connected to the fan 2, both ends of the main pipeline 4 and the secondary pipeline 5 are connected to the valve 3 and the temperature control device, the main pipeline 4 and the secondary pipeline 5 are provided with a flow meter 6, the temperature control device is connected to the catalyst box 9, and the catalyst box 9 contains a catalyst for purifying the exhaust gas; it also includes a control component, the control component is electrically connected to a thermometer 7, a heater 8, two flow meters 6, a flow sensor, the valve 3 and the fan 2; the diameter of the main pipeline 4 is larger than the diameter of the secondary pipeline 5, and the range of the flow meter 6 arranged on the main pipeline 4 is larger than the range of the flow meter 6 arranged on the secondary pipeline 5; the production furnace 1 is provided with a flow sensor, and the flow sensor is used to detect the exhaust gas flow discharged from the production furnace 1.

[0023] The exhaust gas purifier with flow regulation function of this embodiment can select two flow meters 6 with different ranges, and auxiliary pipes 5 and main pipes 4 with different diameters according to the exhaust gas flow, so as to accurately detect the exhaust gas catalytic flow, and then cooperate with the exhaust gas discharge flow obtained by the flow sensor of the production furnace 1 in production, calculate the exhaust gas flow difference, and control the component to adjust the power of the fan 2 to balance the exhaust gas emission flow and the exhaust gas catalytic flow generated by the production furnace 1, so as to ensure the best exhaust gas purification efficiency.

[0024] The temperature control device includes a thermometer 7 and a heater 8. The thermometer 7 is used to detect the exhaust gas temperature, and the heater 8 is used to heat the exhaust gas temperature to a catalytic temperature; wherein the optimal catalytic temperature is 300 degrees Celsius.

[0025] The catalyst box 9 is connected to an exhaust chimney 10, and the exhaust chimney 10 is used to discharge the purified exhaust gas into the atmosphere.

[0026] Working principle: When the production furnace 1 is in production, exhaust gas will be generated and flow to the fan 2 through the pipeline. At this time, the flow sensor detects the exhaust gas flow and transmits it to the control component. The control component adds the exhaust gas flow according to the number of production furnaces 1 in production to obtain the total exhaust gas discharge flow. The exhaust gas will first enter the main pipeline 4 through the valve 3. Since the main pipeline 4 has a large diameter and the flow meter 6 has a large range, when the exhaust gas flow is small, the flow meter 6 will not be able to accurately detect it. At this time, the control component detects that the exhaust gas flow measured by the flow meter 6 on the main pipeline 4 is too small, and the control valve 3 guides the exhaust gas to enter the auxiliary pipeline 5. Through the auxiliary pipeline 5 with a small diameter and the flow meter 6 with a small range but high accuracy, the exhaust gas flow is accurately detected. At this time, the control component obtains the exhaust gas catalytic flow, and then the control component adjusts the power of the fan 2 to balance the exhaust gas emission flow generated by the production furnace 1 and the exhaust gas catalytic flow. Then the exhaust gas passes through the thermometer 7 to determine the exhaust gas temperature, and the control component controls the heater 8 to heat the exhaust gas temperature to the optimal catalytic temperature. Finally, the exhaust gas enters the catalyst box 9 for purification and is discharged through the exhaust chimney 10.

[0027] The above description is only a preferred implementation mode of the present invention, and does not limit the present invention in any form. Any simple modification, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are within the scope of the technical solution of the present invention.

Claims

1. An exhaust gas purifier with flow regulation function, connected to a production furnace, characterized in that: It includes a fan, a valve, a main pipeline, a secondary pipeline, a temperature control device and a catalyst box. The fan is connected to the production furnace. The fan is used to transport the exhaust gas in the production furnace to the catalyst box. The valve is connected to the fan. Both ends of the main pipeline and the secondary pipeline are connected to the valve and the temperature control device. Flow meters are provided on the main pipeline and the secondary pipeline. The temperature control device is connected to the catalyst box. The catalyst box contains a catalyst for purifying the exhaust gas.

2. The exhaust gas purifier with flow regulation function according to claim 1, characterized in that: The diameter of the main pipeline is larger than that of the secondary pipeline, and the measuring range of the flow meter arranged on the main pipeline is larger than that of the flow meter arranged on the secondary pipeline.

3. The exhaust gas purifier with flow regulation function according to claim 1, characterized in that: The temperature control device comprises a thermometer and a heater, wherein the thermometer is used to detect the exhaust gas temperature, and the heater is used to heat the exhaust gas temperature to a catalytic temperature.

4. The exhaust gas purifier with flow rate regulation function according to claim 1, characterized in that: The production furnace is provided with a flow sensor, and the flow sensor is used to detect the flow rate of tail gas discharged from the production furnace.

5. The exhaust gas purifier with flow rate regulation function according to claim 3 or 4, characterized in that: The utility model also comprises a control component, which is electrically connected with the temperature meter, the heater, two flow meters, the flow sensor, the valve and the fan.

6. The exhaust gas purifier with flow rate regulation function according to claim 1, characterized in that: The catalyst box is connected to an exhaust chimney, and the exhaust chimney is used to discharge the purified tail gas into the atmosphere.

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