Multi-component gas detection device for waste incineration power plant

Abstract

The utility model discloses a multi-component gas detection device for a waste incineration power plant, which comprises a box body, an air inlet, an air outlet, a filter screen, a delivery pipe I, a cold air pipe, an exhaust pipe, a fan, four detection probes, a delivery pipe II, a drying mechanism, a driving mechanism and a heat conduction mechanism, according to the device, the functions of pre-cooling and continuous drying of high-temperature flue gas can be achieved, during use, the high-temperature flue gas can be pre-cooled, so that energy consumption of external cooling equipment is reduced, meanwhile, position switching can be conducted on silica gel plates in the drying mechanism, flue gas drying and recovery of the drying capacity of the silica gel plates losing the drying capacity can be conducted synchronously, and the drying efficiency of the silica gel plates is improved. The replacement operation after the drying capacity of the silica gel plate is lost is not needed, so that the operation and maintenance cost is reduced, and the real-time performance and accuracy of the waste incineration power plant on environment monitoring and emission control are ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to gas detection technical field especially is related to a kind of multi-component gas detection device for waste incineration power plant. BACKGROUND

[0002] Waste incineration power plant is the facility using the heat energy of urban domestic waste incineration to generate electricity, in the waste incineration process, to ensure environmental safety and personnel health, usually install multi-component gas detection device to monitor the concentration of harmful gas generated in the incineration process in real time, including hydrogen sulfide, carbon monoxide, methane and the like, so as to take measures to control emission in time;

[0003] The existing part of multi-component gas detection device for waste incineration power plant uses, because water spraying treatment leads to greater humidity on site, so drying agent (such as silica gel plate) is set to dry flue gas, to guarantee the precision of detection, however, the efficiency of drying agent will decrease after a period of use, and it needs to be replaced regularly, this process is not only cumbersome but also increases operation and maintenance cost, and it may affect the continuity of gas monitoring due to detection interruption during replacement, and thus weaken the real-time and accuracy of environmental monitoring and emission control of waste incineration power plant, therefore, a kind of multi-component gas detection device for waste incineration power plant is proposed. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a kind of multi-component gas detection device for waste incineration power plant, can solve the problem that the efficiency of drying agent in part multi-component gas detection device will decrease after a period of use, and it needs to be replaced regularly, this process is not only cumbersome but also increases operation and maintenance cost, and it may affect the continuity of gas monitoring due to detection interruption during replacement, and thus weaken the real-time and accuracy of environmental monitoring and emission control of waste incineration power plant.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of multi-component gas detection device for waste incineration power plant, including box, air inlet, air outlet, filter screen, conveying pipe one, cold gas pipe, exhaust pipe and fan, further including:

[0006] Detection probe, the detection probe is arranged in the box interior, and detection probe has four;

[0007] Conveying pipe two, the conveying pipe two is arranged on the outer surface of box, for the conveying of flue gas;

[0008] Drying mechanism, the drying mechanism is slidably arranged on the inner wall of box, for the drying of flue gas;

[0009] Driving mechanism, the driving mechanism is arranged on the lower surface of box, the driving mechanism is fixedly connected with drying mechanism, for the driving of drying mechanism;

[0010] The heat conduction mechanism is arranged on the inner surface of the box body, and is used for pre-cooling of the high-temperature flue gas and heating of the lower cavity of the box body.

[0011] Preferably, the cold air pipe, the exhaust pipe and the conveying pipe are made of polypropylene plastic.

[0012] Preferably, the drying mechanism comprises two sliding plates which are slidingly arranged on the inner wall of the box body, and the upper part of each sliding plate is provided with a silica gel plate, both of the silica gel plates are slidingly connected with the box body, a reciprocating screw rod is threadedly connected with the inner surface of each sliding plate, and both of the reciprocating screw rods are rotatably connected with the box body.

[0013] Preferably, the reciprocating screw rod is rotatably connected with the box body through a bearing.

[0014] Preferably, the driving mechanism comprises a motor which is arranged on the lower surface of the box body, an output shaft is arranged on the output end of the motor, the output shaft is rotatably connected with the box body, a driving gear is arranged on the outer surface of the output shaft, two one-way gears are symmetrically and meshingly connected with the outer surface of the driving gear, and the one-way gears are fixedly connected with the reciprocating screw rods.

[0015] Preferably, the heat conduction mechanism comprises a heat conduction column which is arranged on the inner surface of the box body, and the lower end of the heat conduction column is provided with a cooling fin which is arranged in the lower cavity of the box body.

[0016] Preferably, the heat conduction column has a plurality of heat conduction columns.

[0017] Compared with the prior art, the box body has the advantages that:

[0018] 1. This application achieves the functions of pre-cooling and continuous drying of high-temperature flue gas through the arrangement of a second conveying pipe, a drying mechanism, a driving mechanism, and a heat conduction mechanism. In use, the heat conduction mechanism pre-cools the high-temperature flue gas, thereby reducing the energy consumption of external cooling equipment. Then, the heat conduction mechanism heats the lower cavity of the chamber. After filtration, pre-cooling, and cooling, the flue gas passes through a silica gel plate with drying capabilities in the drying mechanism to remove moisture, and then it can be tested. The tested flue gas is then conveyed through the second conveying pipe to the lower cavity of the chamber, carrying the heat from the lower cavity towards... The silica gel plates that have lost their drying capacity can be restored to their drying capacity, and then the humid flue gas can be discharged through the exhaust vent. When the upper silica gel plate loses its drying capacity, the drying mechanism can be driven by the drive mechanism to move the lower silica gel plate that has regained its drying capacity to a suitable position (to dry the flue gas) and the upper silica gel plate that has lost its drying capacity to a suitable position (to be heated and restore its drying capacity). There is no need to replace the silica gel plates after they lose their drying capacity, thereby reducing operation and maintenance costs and ensuring the real-time and accurate environmental monitoring and emission control of the waste incineration power plant. Attached Figure Description

[0019] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0020] Figure 1 This is an overall structural view of the present invention;

[0021] Figure 2 This utility model Figure 1 Sectional structural view of the box;

[0022] Figure 3 This utility model Figure 2 A structural view of the drying mechanism in the image;

[0023] Figure 4 This utility model Figure 3 An enlarged structural view of area A in the image.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1, box; 2, detection probe; 3, conveying pipe two; 4, drying mechanism; 41, sliding plate; 42, silica gel plate; 43, reciprocating screw rod; 5, driving mechanism; 51, motor; 52, rotating shaft; 53, driving gear; 54, one-way gear; 6, heat conduction mechanism; 61, heat conduction column; 62, cooling fin; 7, air inlet; 8, air outlet; 9, filter screen; 10, conveying pipe one; 11, cold air pipe; 12, exhaust pipe; 13, fan. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0027] Please refer to Figures 1 to 4 The present application provides a technical solution:

[0028] A multi-component gas detection device for a waste incineration power plant, comprising a box 1, an air inlet 7, an air outlet 8, a filter screen 9, a conveying pipe one 10, a cold air pipe 11, an exhaust pipe 12 and a fan 13, further comprising:

[0029] A detection probe 2 is arranged inside the box 1, and the detection probe 2 has four;

[0030] A conveying pipe two 3 is arranged on the outer surface of the box 1, for conveying flue gas;

[0031] A drying mechanism 4 is slidingly arranged on the inner wall of the box 1, for drying flue gas;

[0032] A driving mechanism 5 is arranged on the lower surface of the box 1, and the driving mechanism 5 is fixedly connected with the drying mechanism 4, for driving the drying mechanism 4;

[0033] A heat conduction mechanism 6 is arranged on the inner surface of the box 1, for pre-cooling high-temperature flue gas and heating the lower cavity of the box 1.

[0034] The cold air pipe 11 and the exhaust pipe 12 are connected with external refrigeration equipment, which can cool the high-temperature flue gas conveyed in the conveying pipe one 10, and at the same time, can discharge heat from the box 1, so as to form a circulating cold air cooling of high-temperature flue gas;

[0035] The four detection probes 2 are connected with an external controller, respectively used for detecting the concentrations of hydrogen sulfide, carbon monoxide, methane and oxygen, and the four detection probes 2 are all made of 316L stainless steel explosion-proof shell, which can adapt to the harsh environment on site, and the gas concentration detected by the detection probe is input into the controller in the form of 4-20 mA current signal, except that the methane probe is an infrared detection probe, the remaining probes are electrochemical detection probes, when the detection probe of the garbage pool detects that the gas concentration exceeds the standard, the corresponding controller sends an audible and visual alarm signal to remind the on-site staff to take corresponding measures, at the same time, the controller can analyze and display the detected data on the LED on-site display screen for the staff to understand in real time.

[0036] Specifically, as shown in Figure 1 and Figure 2 , the cold gas pipe 11, the exhaust pipe 12 and the conveying pipe two 3 are made of polypropylene plastic, which has the characteristics of light weight, high hardness, high temperature resistance, low temperature resistance, corrosion resistance and the like.

[0037] Specifically, as shown in Figure 1 , Figure 2 , Figure 3 and Figure 4 , the drying mechanism 4 includes a sliding plate 41 slidingly arranged on the inner wall of the box body 1, and the sliding plate 41 has two, the upper part of the sliding plate 41 is provided with a silica gel plate 42, and the two silica gel plates 42 are slidingly connected with the box body 1, the inner surface of the sliding plate 41 is threadedly connected with a reciprocating screw rod 43, and the two reciprocating screw rods 43 are rotatably connected with the box body 1, and the reciprocating screw rod 43 and the sliding plate 41 are located in the lower cavity of the box body 1.

[0038] Specifically, as shown in Figure 2 and Figure 3 , the reciprocating screw rod 43 is rotatably connected with the box body 1 through a bearing, which can reduce the rotating friction of the reciprocating screw rod 43, thereby facilitating the rotation of the reciprocating screw rod 43.

[0039] Specifically, as shown in Figure 1 , Figure 2 , Figure 3 and Figure 4 , the driving mechanism 5 includes a motor 51 arranged on the lower surface of the box body 1, the output end of the motor 51 is provided with a rotating shaft 52, the rotating shaft 52 is rotatably connected with the box body 1, the outer surface of the rotating shaft 52 is provided with a driving gear 53, the outer surface of the driving gear 53 is symmetrically meshed with two one-way gears 54, and the one-way gears 54 are fixedly connected with the reciprocating screw rod 43.

[0040] The one-way gear 54 is provided with a ratchet and pawl structure inside, which can realize one-way rotation when cooperating with the driving gear 53.

[0041] Specifically, as shown in Figure 1 and Figure 2As shown, the heat conduction mechanism 6 comprises heat conduction columns 61 arranged on the inner surface of the box 1, and the lower ends of the heat conduction columns 61 are provided with heat dissipation fins 62 which are located in the lower cavity of the box 1.

[0042] Specifically, as shown in the figure, the number of heat conduction columns 61 is multiple, which can increase the contact area with heat, and further improve the heat conduction effect, so as to better complete the pre-cooling of high-temperature flue gas and the heating of the lower cavity of the box 1. Figure 2

[0043] Working principle: in use, start the fan 13, the external high-temperature flue gas can enter the inside of the box 1 through the air inlet 7, then the particulate impurities in the high-temperature flue gas are filtered through the filter screen 9, the filtered high-temperature flue gas can enter the inside of the conveying pipe one 10 after contacting with the heat conduction columns 61 (the cold air generated by the external refrigeration equipment can enter the inside of the box 1 through the cold air pipe 11, and exchange heat with the high-temperature flue gas in the inside of the conveying pipe one 10, then the airflow with heat can be discharged through the exhaust pipe 12), the flue gas after cooling removes the moisture through the silica gel plate 42, then the concentration of hydrogen sulfide, carbon monoxide, methane and oxygen in the flue gas is detected through the four detection probes 2, in this process, the heat conduction columns 61 can conduct heat to the heat dissipation fins 62 to heat the lower cavity of the box 1, then the flue gas after detection can enter the lower cavity of the box 1 through the conveying pipe two 3, and carry the heat in the lower cavity of the box 1 to the silica gel plate 42 which loses drying capacity and is located in the lower cavity of the box 1, complete the heating of the silica gel plate 42, so that it restores the drying capacity, then the flue gas with moisture can be discharged through the air outlet 8.

[0044] When the silica gel plate 42 located in the upper part loses drying capacity, the motor 51 can be started, the output end of the motor 51 drives the rotating shaft 52 to rotate forward, then the rotating shaft 52 rotates forward to drive the driving gear 53 to rotate forward, and further drives the one-way gear 54 located below the silica gel plate 42 in the lower part to rotate, so that the reciprocating lead screw 43 connected thereto rotates, then the reciprocating lead screw 43 rotates to drive the sliding plate 41 connected thereto to move, and further drives the silica gel plate 42 in the lower part which restores the drying capacity to move up to the appropriate position, then the output end of the motor 51 drives the rotating shaft 52 to rotate reversely, then the rotating shaft 52 rotates reversely to drive the driving gear 53 to rotate reversely, and further drives the other one-way gear 54 to rotate, so that the silica gel plate 42 which loses drying capacity moves down to the appropriate position for heating treatment, so that it restores the drying capacity, in this process, due to the arrangement of the reciprocating lead screw 43, the silica gel plate 42 can move up and down when the one-way gear 54 rotates.

[0045] ​Finally, it should be noted that: the above embodiments are used to illustrate the technical solutions of the present application, but not limited to them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A multi-component gas detection device for waste incineration power plants, comprising a box (1), an air inlet (7), an air outlet (8), a filter screen (9), a conveying pipe I (10), a cold air pipe (11), an exhaust pipe (12) and a fan (13), characterized in that: Also include: Detection probe (2), the detection probe (2) is arranged inside the box (1), and the detection probe (2) has four; Conveying pipe two (3), the conveying pipe two (3) is arranged on the outer surface of the box (1), for conveying flue gas; Drying mechanism (4), the drying mechanism (4) is slidably arranged on the inner wall of the box (1), for drying flue gas; Driving mechanism (5), the driving mechanism (5) is arranged on the lower surface of the box (1), the driving mechanism (5) is fixedly connected with the drying mechanism (4), for driving the drying mechanism (4); Heat conduction mechanism (6), the heat conduction mechanism (6) is arranged on the inner surface of the box (1), for precooling of high temperature flue gas and heating of the lower cavity of the box (1).

2. The multi-component gas detection device for waste incineration power plants according to claim 1, characterized in that: The cold gas pipe (11), the exhaust pipe (12) and the conveying pipe two (3) are made of polypropylene plastic.

3. The multi-component gas detection device for waste incineration power plants according to claim 2, characterized in that: The drying mechanism (4) includes a sliding plate (41) slidably arranged on the inner wall of the box (1), and the sliding plate (41) has two, the upper portion of the sliding plate (41) is provided with a silica gel plate (42), the two silica gel plates (42) are slidably connected with the box (1), the inner surface of the sliding plate (41) is threadedly connected with a reciprocating screw rod (43), the two reciprocating screw rods (43) are rotatably connected with the box (1), and the reciprocating screw rod (43) and the sliding plate (41) are located in the lower cavity of the box (1).

4. The multi-component gas detection device for waste incineration power plants according to claim 3, characterized in that: The reciprocating screw rod (43) and the box (1) are rotatably connected through a bearing.

5. The multi-component gas detection device for waste incineration power plants according to claim 4, characterized in that: The driving mechanism (5) includes a motor (51) arranged on the lower surface of the box (1), an output end of the motor (51) is provided with a rotating shaft (52), the rotating shaft (52) is rotatably connected with the box (1), the outer surface of the rotating shaft (52) is provided with a driving gear (53), the outer surface of the driving gear (53) is symmetrically meshed with two one-way gears (54), and the one-way gears (54) are fixedly connected with the reciprocating screw rod (43).

6. The multi-component gas detection device for waste incineration power plants according to claim 5, characterized in that: The heat conduction mechanism (6) includes a heat conduction column (61) arranged on the inner surface of the box (1), and the lower end of the heat conduction column (61) is provided with a cooling fin (62).

7. The multi-component gas detection device for waste incineration power plants according to claim 6, characterized in that: The number of the heat conduction column (61) is multiple.

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