Multi-stage regulation and control waste gas treatment equipment and waste gas treatment system

Abstract

The utility model relates to multistage regulation and control waste gas treatment equipment and a waste gas treatment system, the multistage regulation and control waste gas treatment equipment comprises an equipment main body, a controller, and a filter unit, a catalysis unit, an adsorption unit and a fan which are sequentially arranged in the equipment main body, and sensors are arranged between the catalysis unit and the filter unit and between the catalysis unit and the adsorption unit; the catalysis unit comprises a plurality of UV lamp sources; the adsorption unit comprises an activated carbon module; and the controller is respectively connected with the UV lamp source, the fan and the sensor. According to the waste gas treatment equipment, a plurality of technologies such as a filtering unit, a sensor, UV photocatalytic oxidation and PLC control are combined together, so that advantage complementation of the plurality of technologies is realized; the sensor can monitor the concentration of waste gas in real time, the controller can regulate and control the number of UV lamp sources of the catalysis unit and the rotating speed of the draught fan according to the concentration of the waste gas, energy consumption is reduced on the premise that the purification effect is guaranteed, and the adsorption unit is further arranged to adsorb ozone and VOC gas generated by the UV lamp sources, so that the purification effect is improved. The waste gas purification effect is further ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to waste gas treatment equipment technical field especially is a kind of multistage regulation and control waste gas treatment equipment and waste gas treatment system. BACKGROUND

[0002] Waste gas treatment device is used to treat the waste gas generated in industrial production process, to reduce the emission of harmful substances, protect the environment;Waste gas treatment device purifies waste gas by different technical means such as adsorption, absorption, catalytic combustion and thermal combustion.

[0003] The existing waste gas treatment equipment has low processing efficiency, and cannot flexibly adjust the intensity of waste gas treatment according to the change of waste gas concentration, resulting in serious energy waste when treating low-concentration waste gas, and incomplete treatment when treating high-concentration waste gas. UTILITY MODEL CONTENT

[0004] Therefore, the utility model wants to solve the technical problem in prior art, the processing efficiency of waste gas treatment equipment is low, and the intensity of waste gas treatment cannot be flexibly adjusted according to the change of waste gas concentration, resulting in serious energy waste when treating low-concentration waste gas, and incomplete treatment when treating high-concentration waste gas.

[0005] To solve the above technical problems, the utility model provides a kind of multistage regulation and control waste gas treatment equipment, including,

[0006] Device main body, it includes waste gas passage, the one end of waste gas passage is air inlet end, the other end is air outlet end;

[0007] Filter unit, it is set in waste gas passage and is close to the side of air inlet end;

[0008] Catalytic unit, it is set in waste gas passage and is located the side of filter unit away from air inlet end, catalytic unit includes a plurality of UV lamp sources connected with device main body;

[0009] Adsorption unit, it is set in waste gas passage and is located the side of catalytic unit away from filter unit, adsorption unit includes at least one activated carbon module connected with device main body;

[0010] Fan, it is set in waste gas passage and is close to the side of air outlet end;

[0011] First concentration sensor, it is set between filter unit and catalytic unit;

[0012] Second concentration sensor, it is set between catalytic unit and adsorption unit;

[0013] Controller, it is connected UV lamp source, fan, first concentration sensor and second concentration sensor respectively.

[0014] In one embodiment of the utility model, the UV lamp source is provided with a plurality of UV lamp sources, and a plurality of titanium dioxide plates are arranged between the UV lamp sources.

[0015] In one embodiment of the utility model, the waste gas passage is provided with at least two groups of guiding slides arranged in parallel and at intervals, the interval of the two adjacent guiding slides matches the width of the activated carbon module, and the activated carbon module is inserted between the two adjacent guiding slides.

[0016] In one embodiment of the utility model, the equipment main body is provided with an access door for replacing the activated carbon module.

[0017] In one embodiment of the utility model, the differential pressure transmitter is arranged in the waste gas passage, the differential pressure transmitter comprises two detection heads, the two detection heads are arranged on the two sides of the filter unit respectively, and the differential pressure transmitter is connected with the controller.

[0018] In one embodiment of the utility model, the controller adopts a PLC controller.

[0019] In one embodiment of the utility model, the first concentration sensor and the second concentration sensor both adopt photoionization intelligent sensors.

[0020] In one embodiment of the utility model, the filter unit is a G4 filter.

[0021] In one embodiment of the utility model, an electric control box is arranged on one side of the equipment main body.

[0022] A waste gas treatment system comprises the multistage regulation and control waste gas treatment equipment.

[0023] Compared with the prior art, the above technical scheme of the utility model has the following advantages:

[0024] The utility model discloses a multistage regulation and control waste gas treatment equipment and waste gas treatment system, including equipment main part, controller and setting filter unit, catalytic unit, adsorption unit and fan in the inside air channel of equipment main part in proper order, and catalytic unit and filter unit and adsorption unit all are provided with sensor between, catalytic unit includes a plurality of UV lamp sources, adsorption unit includes active carbon module, controller is connected UV lamp source, fan and sensor respectively. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to make the content of the utility model more easily be clearly understood, below according to the specific embodiment of the utility model and combining with the drawings, the utility model is further detailed, wherein

[0026] Figure 1 It is the whole structure's schematic diagram of multistage regulation and control waste gas treatment equipment of the utility model preferred embodiment;

[0027] Figure 2 It is the structure schematic diagram of catalytic unit of multistage regulation and control waste gas treatment equipment of the utility model preferred embodiment;

[0028] Figure 3 It is the structure schematic diagram of adsorption unit of multistage regulation and control waste gas treatment equipment of the utility model preferred embodiment.

[0029] Description of the Drawings Reference Signs: 1, equipment main part;11, air inlet end;12, air outlet end;13, access door;2, filter unit;3, catalytic unit;31, UV lamp source;32, titanium dioxide board;4, adsorption unit;41, active carbon module;42, guide slide;5, fan;6, first concentration sensor;7, second concentration sensor;8, electric control box. DETAILED DESCRIPTION

[0030] The utility model is further explained in connection with the drawings and specific embodiment, so that the person skilled in the art can better understand the utility model and can be implemented, but the embodiment is not as the limitation of the utility model. Example one

[0031] Reference Figure 1 , Figure 2And Figure 3 The utility model discloses a multistage regulation and control waste gas treatment equipment, including,

[0032] The equipment main part 1 includes the waste gas channel, and the one end of waste gas channel is the air inlet end 11, and the other end is the air outlet end 12;

[0033] The filter unit 2 is set up in the waste gas channel and is close to the one side of air inlet end 11;

[0034] The catalytic unit 3 is set up in the waste gas channel and is located the filter unit 2 far from the one side of air inlet end 11, and the catalytic unit 3 includes a plurality of UV lamp sources 31 connected with equipment main part 1;

[0035] The adsorption unit 4 is set up in the waste gas channel and is located the catalytic unit 3 far from the one side of filter unit 2, and the adsorption unit 4 includes at least one active carbon module 41 connected with equipment main part 1;

[0036] The fan 5 is set up in the waste gas channel and is close to the one side of air outlet end 12;

[0037] The first concentration sensor 6 is set up between filter unit 2 and catalytic unit 3;

[0038] The second concentration sensor 7 is set up between catalytic unit 3 and adsorption unit 4;

[0039] The controller is connected UV lamp source, fan, first concentration sensor and second concentration sensor respectively.

[0040] Specifically, filter unit 2, catalytic unit 3, adsorption unit 4 and fan 5 are sequentially arranged in the waste gas channel along the air inlet direction, and the sealing between the units is ensured to be good during installation to prevent waste gas leakage. Among them, filter unit 2 is used to filter impurities in the waste gas entering from the air inlet end, to create conditions for subsequent waste gas purification;Catalytic unit 3 is used for photocatalytic oxidation reaction of waste gas, and the purified waste gas is purified by UV lamp source 31 based on the principle of photocatalytic oxidation;The adsorption unit 4 carries out adsorption treatment on the ozone and VOC gas possibly generated in the purification process, to ensure the final waste gas purification effect.

[0041] Specifically, the first concentration sensor 6 is used to monitor the concentration of the waste gas (purified waste gas) at the air inlet end 11, and the second concentration sensor 7 is used to monitor the concentration of the waste gas after being treated by the catalytic unit 3, and the controller regulates and controls the catalytic unit 3 and the fan 5 according to the waste gas concentration information monitored by the two concentration sensors in real time, to ensure the final purification effect of the waste gas. Among the two concentration sensors, the waste gas concentration data monitored by the first concentration sensor 6 is used as the main basis for the controller to carry out related regulation and control, and the waste gas concentration data monitored by the second concentration sensor 7 is used as the auxiliary regulation and control basis.

[0042] Two regulation strategies are provided as follows:

[0043] The catalytic effect of the catalytic unit 3 is regulated by regulating the number of UV light sources 31 turned on:

[0044] Low mode: when the exhaust gas concentration monitored by the first concentration sensor 6 is less than the low threshold, 30% of the UV light sources 31 are turned on;

[0045] Medium mode: when the exhaust gas concentration monitored by the first concentration sensor 6 is greater than or equal to the low threshold and less than or equal to the medium threshold, 60% of the UV light sources 31 are turned on;

[0046] High mode: when the exhaust gas concentration monitored by the first concentration sensor 6 is greater than the medium threshold, all (100%) of the UV light sources 31 are turned on.

[0047] The catalytic effect of the catalytic unit is regulated by regulating the speed of the fan 5:

[0048] Low mode: when the exhaust gas concentration monitored by the first concentration sensor 6 is less than the low threshold, the fan 5 runs at full speed;

[0049] Medium mode: when the exhaust gas concentration monitored by the first concentration sensor 6 is greater than or equal to the low threshold and less than or equal to the medium threshold, the fan 5 is linearly regulated to 30%-70% of the rated speed;

[0050] High mode: when the exhaust gas concentration monitored by the first concentration sensor 6 is greater than the medium threshold, the fan 5 is regulated to below 30% of the rated speed.

[0051] The catalytic efficiency and catalytic effect of the catalytic unit 3 can be regulated by regulating the number of UV light sources 31 turned on or adjusting the speed of the fan 5 alone, for example: when the exhaust gas concentration at the air inlet end 11 is high, the number of UV light sources 31 turned on can be increased or the speed of the fan 5 running can be reduced, so that the exhaust gas can be completely reacted inside the catalytic unit 3, thereby reducing the concentration of ozone discharged at the tail end.

[0052] The number of UV light sources 31 turned on and the speed of the fan 5 can also be adjusted simultaneously, so that the effects of the two are superimposed, and the exhaust gas is purified more efficiently. For example: when the exhaust gas concentration at the air inlet end 11 is extremely high, the number of UV light sources 31 turned on can be adjusted to the maximum, and at the same time the speed of the fan 5 running can be reduced to the minimum, so that the high-concentration exhaust gas is exposed to a high-ozone environment for a long time, ensuring that the exhaust gas is completely reacted inside the catalytic unit 3, and avoiding the situation that high-concentration exhaust gas is not completely treated before being discharged.

[0053] Further, the UV lamp source 31 is provided with multiple UV lamp sources 31, and between the multiple UV lamp sources 31, a titanium dioxide plate 32 is arranged. Specifically, the UV lamp source 31 provides high-energy ultraviolet light waves, and the titanium dioxide plate 32 acts as a catalyst. Under the irradiation of ultraviolet light, the titanium dioxide absorbs light energy and generates electron transition and hole transition. These electrons and holes react with oxygen and water in the air to generate free radicals with strong oxidizing properties to oxidize and decompose organic matter in the waste gas, thereby achieving the effect of purifying the waste gas.

[0054] Further, at least two groups of parallel and spaced guide slides 42 are arranged in the waste gas channel, the distance between the two adjacent guide slides 42 matches the width of the activated carbon module 41, and the activated carbon module 41 is inserted between the two adjacent guide slides 42. Specifically, the activated carbon module 41 is arranged in a pull-out type detachable structure, which facilitates replacement of the activated carbon module 41.

[0055] Further, the equipment main body 1 is provided with an access door 13 for replacing the activated carbon module. Through the access door 13, the activated carbon module 41 can be replaced, and other equipment in the waste gas channel can be maintained and maintained.

[0056] Further, a differential pressure transmitter is further included, the differential pressure transmitter is arranged in the waste gas channel, the differential pressure transmitter includes two detection heads, the two detection heads are arranged on two sides of the filter unit respectively, and the differential pressure transmitter is connected to the controller. Specifically, through the detection data of the two detection heads of the differential pressure transmitter, whether the filter screen is blocked can be monitored in real time, and the waste gas purification process is ensured to be stable and smooth.

[0057] Further, the controller adopts a PLC controller. Specifically, a mathematical model established according to waste gas treatment kinetics and experimental data can be set in the controller according to the two kinds of regulation and control strategies, so as to realize automatic regulation and control.

[0058] Further, the first concentration sensor 6 and the second concentration sensor 7 both adopt photoionization intelligent sensors.

[0059] Further, the filter unit 2 is a G4 filter.

[0060] Further, an electric control box 8 is included, and the electric control box 8 is connected to one side of the equipment main body 1.

[0061] The utility model discloses a kind of multistage regulation and control waste gas treatment equipment, filter unit 2, photoionization intelligent sensor, UV photocatalytic oxidation, PLC control etc. Variety of technologies are combined together, form a kind of brand-new waste gas treatment equipment, realize the complementary advantages of multiple technologies;Sensor set can monitor waste gas concentration in real time, and controller can regulate and control the number of UV light source of catalytic unit and the rotating speed of fan according to monitored waste gas concentration, reduce the consumption of energy under the premise of guaranteeing purification effect, simultaneously still be provided with adsorption unit to UV light source generated ozone and VOC gas are adsorbed, further ensure the effect of waste gas purification.The structure of whole device is simple, installation and maintenance are convenient, with very high practicability. Example two

[0062] The utility model discloses a kind of waste gas treatment systems, including the multistage regulation and control waste gas treatment equipment of example one.

[0063] Obviously, the above examples are merely examples for clarity, and are not limited to the implementation. For those skilled in the art, other different forms of changes or variations can be made on the basis of the above description. Here, it is not necessary and impossible to enumerate all the embodiments. The obvious changes or variations derived therefrom are still within the protection scope of the utility model.

Claims

1. A multi-stage controlled waste gas treatment device, characterized in that: include, The main body of the equipment includes an exhaust gas passage, one end of which is an air inlet and the other end is an air outlet; The filter unit is located on the side of the exhaust gas passage near the air inlet. A catalytic unit is disposed in the exhaust gas channel and located on the side of the filter unit away from the air inlet. The catalytic unit includes multiple UV lamp sources connected to the main body of the equipment. An adsorption unit is disposed in the exhaust gas channel and located on the side of the catalytic unit away from the filter unit. The adsorption unit includes at least one activated carbon module connected to the main body of the equipment. The fan is located in the exhaust gas duct on the side near the exhaust end; A first concentration sensor is disposed between the filtration unit and the catalytic unit; A second concentration sensor is disposed between the catalytic unit and the adsorption unit; The controller is connected to the UV lamp source, the fan, the first concentration sensor, and the second concentration sensor, respectively.

2. The multi-stage controlled waste gas treatment equipment according to claim 1, characterized in that: Multiple UV lamp sources are provided, and titanium dioxide plates are provided between each of the multiple UV lamp sources.

3. The multi-stage controlled waste gas treatment equipment according to claim 1, characterized in that: The exhaust gas channel is provided with at least two sets of parallel and spaced guide slides. The spacing between two adjacent guide slides matches the width of the activated carbon module. The activated carbon module is inserted between two adjacent guide slides.

4. The multi-stage controlled waste gas treatment equipment according to claim 3, characterized in that: The main body of the equipment is equipped with a maintenance door for replacing the activated carbon module.

5. The multi-stage controlled waste gas treatment equipment according to claim 1, characterized in that: It also includes a differential pressure transmitter, which is installed in the exhaust gas channel. The differential pressure transmitter includes two detection heads, which are respectively installed on both sides of the filter unit, and the differential pressure transmitter is connected to the controller.

6. The multi-stage controlled waste gas treatment equipment according to claim 1, characterized in that: The controller is a PLC controller.

7. The multi-stage controlled waste gas treatment equipment according to claim 1, characterized in that: Both the first and second concentration sensors are photoionization smart sensors.

8. The multi-stage controlled waste gas treatment equipment according to claim 1, characterized in that: The filtration unit is a G4 filter.

9. The multi-stage controlled waste gas treatment equipment according to claim 1, characterized in that: It includes an electrical control box, which is connected to one side of the main body of the equipment.

10. A waste gas treatment system, characterized in that: Includes the multi-stage controlled waste gas treatment equipment as described in any one of claims 1-9.

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