Acid mist-containing waste gas generator

Abstract

The utility model relates to a generator for waste gas containing acid mist. Comprising a movable carrier, a controllable lifting device is installed on the movable carrier, a supporting box body is installed at the top of the controllable lifting device, a heating box is installed at the top of the supporting box body, and an acid liquor box and a plurality of electric heating pipes arranged around the acid liquor box are arranged in the heating box; a liquid adding pipe is arranged at the top of the acid liquor box and penetrates out of the top wall of the heating box, the acid liquor box is provided with a conical bottom, a waste discharging pipe is arranged at the bottom of the conical bottom, and the lower end of the waste discharging pipe penetrates out of the bottom wall of the heating box and is provided with an acid discharging valve; an oil filling pipe is mounted at the top of the heating box, and an oil discharging valve is mounted at the bottom of the heating box; the device further comprises a conveying pipe, the lower end of the conveying pipe is detachably connected with the upper end of the liquid adding pipe, the top of the conveying pipe is provided with an acid mist spray head and an air supply assembly, and a control box with a line bank is installed on the side portion of the heating box. The device can continuously and stably generate waste gas containing acid mist, is easily connected with a test object so as to input the waste gas containing acid mist to the test object, and has moving flexibility so as to meet the requirements of application in different scenes and different places.

Description

Technical Field

[0001] This utility model belongs to the technical field of experimental facilities, and in particular relates to an acid mist exhaust gas generator. Background Technology

[0002] In the production of environmental protection equipment, testing is necessary for quality inspection. For acid mist treatment equipment, such as spray towers and adsorption boxes, the equipment is turned on during testing, allowing waste gas containing acid mist to pass through it. The quality of the equipment is judged by detecting the content of acidic pollutants in the treated exhaust gas. On the other hand, the aforementioned model is also typically used to evaluate the quality of environmental engineering projects during the acceptance phase. For example, for waste gas treatment systems configured for the electronics industry, which primarily treat acid mist components, simulated acid mist waste gas is applied to the waste gas treatment system during acceptance testing to evaluate whether the system's waste gas treatment capacity meets the design requirements.

[0003] The aforementioned activities all require the ability to simulate acid mist-containing waste gas generated during the production process to a certain extent. Currently, there are no suitable acid mist generating devices, resulting in a lack of technical means to simulate real-world waste gas sources for performance evaluation of environmental protection equipment / waste gas treatment systems. Therefore, it is necessary to develop and design such devices as needed. Utility Model Content

[0004] The purpose of this invention is to provide an acid mist exhaust gas generator that can continuously and stably generate acid mist exhaust gas, is easy to connect to the test object to input acid mist exhaust gas into the test object, and has the flexibility to move to meet the application requirements in different scenarios and locations.

[0005] The technical solution adopted by this utility model is as follows: an acid mist exhaust gas generator includes a movable carrier, a controllable lifting device installed on the movable carrier, a support box installed on the top of the controllable lifting device, a heating box installed on the top of the support box, an acid tank and multiple electric heating tubes arranged around the acid tank inside the heating box, a liquid inlet pipe installed on the top of the acid tank and extending through the top wall of the heating box, the acid tank having a conical bottom and a waste discharge pipe at the bottom of the conical bottom, the lower end of the waste discharge pipe extending through the bottom wall of the heating box and equipped with an acid discharge valve; an oil filling pipe installed on the top of the heating box, and an oil drain valve installed at the bottom of the heating box; it also includes a conveying pipe, the lower end of which is detachably connected to the upper end of the liquid inlet pipe, an acid mist nozzle and an air supply assembly installed on the top of the conveying pipe, and a control box with a terminal block installed on the side of the heating box.

[0006] Preferably, the portion of each electric heating tube located inside the heating box is annular, and the acid tank is located within the cylindrical space formed by each electric heating tube. The electrical terminals at the ends of each electric heating tube are installed and fixed on the same side wall of the heating box, and each exposed terminal is connected to the control box.

[0007] Preferably, multiple temperature probes are also installed on the side wall of the heating chamber, with the measuring ends of each temperature probe located at different positions inside the heating chamber, and each temperature probe is connected to the control box.

[0008] Preferably, the air delivery assembly includes a blower box with an open top and a mounting plate, and a blower mounted on the blower box, with the top of the delivery pipe passing through the blower box.

[0009] Preferably, a flange is provided at the lower end of the delivery pipe and a flange is provided at the upper end of the liquid filling pipe. The two flanges are connected together and a sealing gasket is provided between them.

[0010] Preferably, a pressure relief safety valve is installed at the top of the refueling pipe.

[0011] Preferably, the mobile vehicle includes a chassis with wheels and a handrail mounted at the rear of the chassis.

[0012] Preferably, the controllable lifting device includes a cross-shaped fork arm and a lifting platform located above the cross-shaped fork arm. The upper front end of the cross-shaped fork arm is hinged to the front of the lifting platform, and the lower front end is hinged to the front of the chassis. The upper rear end of the cross-shaped fork arm is equipped with a track wheel that moves along a track on the lifting platform, and the lower rear end of the cross-shaped fork arm is equipped with a track wheel that moves along a track on the chassis. An electric push rod is also installed between the chassis and the central shaft of the cross-shaped fork arm. The bottom of the support box is fixedly connected to the lifting platform.

[0013] The advantages and positive effects of this utility model are:

[0014] This invention provides an acid mist exhaust gas generator, which is transported by a mobile carrier. This enhances the generator's mobility, allowing it to be moved and used in different scenarios and locations. A controllable lifting device facilitates the raising and lowering of the generator, enabling it to be integrated with flue gas ducts at different heights. This allows the generator to be adapted to various types of environmental protection equipment / exhaust gas treatment systems, improving its versatility.

[0015] This acid mist generator uses electric heating to heat the heat-conducting oil, causing the acid in the acid tank to evaporate and form acid mist. By positioning the electric heating tubes around the acid tank, uniform heating is ensured, resulting in a continuous and stable generation of acid mist. The top-mounted acid mist nozzles are inserted into the flue gas duct, facilitating easy connection to test objects and the introduction of acid mist-containing exhaust gas. An air supply assembly draws in outside air, mixing it with the acid mist to form acid mist exhaust gas, meeting the required flow rate for testing or detection and providing fluidity for the acid mist-containing exhaust gas. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the connection structure between this utility model and the flue gas duct.

[0018] In the picture:

[0019] 1. Control box; 2. Terminal block; 3. Heating box; 4. Temperature probe; 5. Electric heating element; 6. Acid tank; 7. Liquid filling pipe; 8. Pressure relief safety valve; 9. Oil filling pipe; 10. Acid discharge valve; 11. Oil discharge valve; 12. Delivery pipe; 13. Blower box; 14. Blower; 15. Mounting plate; 16. Acid mist nozzle; 17. Support box; 18. Handrail; 19. Lifting platform; 20. Electric actuator; 21. Cross-shaped fork arm; 22. Chassis; 23. Rollers; 24. Flue gas duct. Detailed Implementation

[0020] To further understand the invention content, features and effects of this utility model, the following embodiments are provided in detail.

[0021] Please see Figure 1 This utility model discloses an acid mist exhaust gas generator, comprising a mobile carrier, a controllable lifting device mounted on the mobile carrier, and an exhaust gas generator mounted on top of the controllable lifting device. The use of a mobile carrier to transport the controllable lifting device and the exhaust gas generator enhances mobility. The controllable lifting device allows the exhaust gas generator to be integrated with flue gas ducts 24 at different heights, thus enabling it to be adapted to various types of environmental protection equipment / exhaust gas treatment systems, improving its versatility.

[0022] In this embodiment, the mobile carrier includes a chassis 22 with rollers 23 and a handrail 18 is installed at the rear of the chassis 22. Therefore, the mobile carrier is a handcart. When using this acid mist exhaust gas generator, it is moved by hand by the operator. In order to be able to stop stably after being in place, each roller 23 is selected as a brake type roller.

[0023] In this embodiment, the controllable lifting device includes a cross-shaped fork arm 21 and a lifting platform 19 located above the cross-shaped fork arm 21. As shown in the figure, the cross-shaped fork arm 21 includes two sets of support arms connected by a central axis hinge in the middle. By adjusting the shape of the cross-shaped fork arm 21, its height can be increased or decreased, thereby controlling the raising or lowering of the exhaust gas generating device. Specifically, the upper front end of the cross-shaped fork arm 21 is hinged to the front of the lifting platform 19, and the lower front end is hinged to the front of the chassis 22. The upper rear end of the cross-shaped fork arm 21 is equipped with a track wheel that moves along the track on the lifting platform 19, and the lower rear end of the cross-shaped fork arm 21 is equipped with a track wheel that moves along the track on the chassis 22. An electric push rod 20 is also installed between the chassis 22 and the central axis of the cross-shaped fork arm 21. The lower end of the electric push rod 20 is hinged to the middle of the chassis 22, and the upper end of the telescopic rod of the electric push rod 20 is hinged to the middle of the central axis of the cross-shaped fork arm 21.

[0024] By controlling the telescopic rod of the electric actuator 20 to extend and retract, the cross-shaped fork arm 21 is controlled to produce the aforementioned shape change. When the telescopic rod of the electric actuator 20 extends, the central axis of the cross-shaped fork arm 21 is pushed forward, and the height of the controllable lifting device increases. Conversely, when the telescopic rod of the electric actuator 20 retracts, the central axis of the cross-shaped fork arm 21 is pulled backward, and the height of the controllable lifting device decreases.

[0025] The exhaust gas generating device includes a support box 17, the bottom of which is fixedly connected to the lifting platform 19.

[0026] A heating chamber 3 is installed on top of the supporting housing 17. Heat transfer oil is injected into the heating chamber 3. Inside the heating chamber 3 is an acid tank 6 and multiple electric heating tubes 5 arranged around the acid tank 6. A filling pipe 7 is located on the top of the acid tank 6 and extends through the top wall of the heating chamber 3. Acid is injected into the acid tank 6 through the filling pipe 7. The electric heating tubes 5 are used to heat the heat transfer oil in the heating chamber 3. The heat transfer oil heats the acid tank 6 and the acid inside it. After being heated, the acid evaporates into acid mist and is discharged upwards through the filling pipe 7.

[0027] The acid tank 6 has a conical bottom with a waste discharge pipe at the bottom. The lower end of the waste discharge pipe extends through the bottom wall of the heating tank 3 and is fitted with an acid discharge valve 10. Thus, when residual acid needs to be discharged from the acid tank 6, the acid discharge valve 10 is opened, and the acid is discharged from the bottom. An oil filling pipe 9 is installed at the top of the heating tank 3, and an oil drain valve 11 is installed at the bottom. Heat transfer oil is injected into the heating tank 3 through the oil filling pipe 9. When residual heat transfer oil needs to be discharged from the heating tank 3, the oil drain valve 11 is opened, and the heat transfer oil is discharged from the bottom. In this embodiment, a pressure relief safety valve 8 is installed at the top of the oil filling pipe 9. Its function is: as the heat transfer oil inside the heating tank 3 is heated, volatile oil vapor is generated, increasing the internal pressure. When the internal pressure reaches a certain value, the pressure relief safety valve 8 opens, ensuring operational safety by releasing pressure.

[0028] It also includes a delivery pipe 12, the lower end of which is detachably connected to the upper end of the liquid filling pipe 7. An acid mist nozzle 16 and an air supply assembly are provided at the top of the delivery pipe 12. In this embodiment, a flange is provided at the lower end of the delivery pipe 12 and a flange is provided at the upper end of the liquid filling pipe 7. The two flanges are connected together and a sealing gasket is provided between them. The delivery pipe 12 is installed separately after the acid is added. As shown in the figure, the delivery pipe 12 extends vertically upward, and the acid mist formed by heating reaches the acid mist nozzle 16 along the delivery pipe 12.

[0029] The function of the air supply component is to draw in outside air, which mixes with the supplied acid mist to form acid-mist-containing exhaust gas. This ensures the required exhaust gas flow rate for testing or inspection. Simultaneously, the air supply component provides the flow momentum for the acid-mist-containing exhaust gas, promoting its entry into the environmental protection equipment / exhaust gas treatment system to be tested / inspected. The acid mist nozzle 16 has multiple nozzles, which prevents the acid mist from becoming too concentrated. When discharged in a dispersed manner, it can better mix with the incoming airflow to form the desired acid-mist-containing exhaust gas.

[0030] In this embodiment, the air supply assembly includes a blower box 13 with an open top and a mounting plate 15, and a blower 14 mounted on the blower box 13. The top of the delivery pipe 12 passes through the blower box 13. When this acid mist exhaust gas generator is combined with the flue gas duct 24, the acid mist nozzle 16 enters the interior of the flue gas duct 24 through a pre-reserved interface at the bottom of the flue gas duct 24. At this time, the mounting plate 15 contacts the bottom of the flue gas duct 24, a sealing gasket is placed between them, and the connection is fixed with bolts. The blower 14 draws in external airflow and sends it into the blower box 13. This part of the airflow enters the flue gas duct 24 upward and mixes with the acid mist sprayed from the acid mist nozzle 16 to form acid mist exhaust gas with a certain flow rate and volume.

[0031] A control box 1 with a terminal block 2 is installed on the side of the heating box 3. The operation of this acid mist exhaust gas generator is controlled by the control box 1, and the terminal block 2 is used to connect the acid mist exhaust gas generator to the power supply. As shown in the figure, the control box 1 is located at the rear of the heating box 3 and in front of the handrail 18, which facilitates operation. A heat insulation layer can be installed between the control box 1 and the heating box 3 to prevent the control box 1 from being affected by the high temperature of the heating box 3.

[0032] In this embodiment, the portion of each electric heating tube 5 located inside the heating box 3 is annular, and the acid tank 6 is located within the cylindrical space formed by each electric heating tube 5. This can moderately improve the uniformity of the heating effect in the acid tank 6. The power terminals located at the ends of each electric heating tube 5 are installed and fixed on the same side wall of the heating box 3 (shown in the figure as the rear side wall of the heating box 3). Each exposed terminal is connected to the control box 1, and the control box 1 controls each electric heating tube 5 to be connected to or disconnected from power.

[0033] In this embodiment, multiple temperature probes 4 are installed on the side wall of the heating chamber 3. The measuring ends of each temperature probe 4 are located at different positions inside the heating chamber 3, and each temperature probe 4 is connected to the control box 1. The control box 1 uses each temperature probe 4 to determine the temperature value of the heat transfer oil inside the chamber. When the upper limit of the set temperature value is reached, the control box 1 controls each electric heating tube 5 to turn off the power. When the lower limit of the set temperature value is reached, the control box 1 controls each electric heating tube 5 to turn on the power. In this way, the temperature of the heat transfer oil can be controlled within a certain range to avoid the temperature being too high or too low, ensuring a continuous and stable heating effect on the acid in the acid tank 6, and continuously and stably generating acid mist.

[0034] For usage instructions, please refer to [link / reference]. Figure 2 :

[0035] Disassemble the pressure relief safety valve 8, inject an appropriate amount of heat transfer oil into the heating tank 3 through the oil filling pipe 9, and then install the pressure relief safety valve 8 onto the oil filling pipe 9; disassemble the delivery pipe 12 and its auxiliary components as a whole, inject an appropriate amount of acid into the acid tank 6 through the liquid filling pipe 7, and then reassemble the delivery pipe 12 and the liquid filling pipe 7.

[0036] The operator moves the acid mist generator directly below the flue gas duct 24. Based on the height of the flue gas duct 24, the controller 1 controls the piston rod of the electric actuator 20 to gradually extend, causing the generator to rise until the acid mist nozzle 16 is inserted upwards into the interface at the bottom of the flue gas duct 24. A sealing gasket is placed on the mounting plate 15, and bolts are used to secure it when it contacts the bottom of the flue gas duct 24. The control box 1 controls the electric heating tubes 5 to connect and heat up, and the heating chamber 3... The heat transfer oil is heated, and the acid in the acid tank 6 is uniformly heated to a high temperature to form acid mist. The acid mist is transported upward through the conveying pipe 12 to the acid mist nozzle 16, and after being sprayed out, it enters the flue gas duct 24. After stabilization, the blower 14 is started through the control box 1. The blower 14 draws in the outside air and injects it into the blower box 13. This part of the airflow enters the flue gas duct 24 upward and mixes with the acid mist to form acid mist-containing exhaust gas with a certain flow rate and volume. The acid mist-containing exhaust gas enters the environmental protection equipment / exhaust gas treatment system to be tested / inspected.

Claims

1. An acid mist-containing waste gas generator, characterized in that: The device includes a mobile vehicle, on which a controllable lifting device is installed. A support box (17) is installed on top of the controllable lifting device. A heating box (3) is installed on top of the support box (17). Inside the heating box (3) is an acid tank (6) and multiple electric heating tubes (5) arranged around the acid tank (6). A liquid filling pipe (7) is provided on top of the acid tank (6) and extends through the top wall of the heating box (3). The acid tank (6) has a conical bottom and a [missing information - likely a conical base or structure]. Waste discharge pipe, the lower end of which extends through the bottom wall of the heating box (3) and is equipped with an acid discharge valve (10); an oil filling pipe (9) is installed on the top of the heating box (3), and an oil discharge valve (11) is installed at the bottom of the heating box (3); a conveying pipe (12) is also included, the lower end of which is detachably connected to the upper end of the liquid filling pipe (7), an acid mist nozzle (16) and an air supply assembly are provided on the top of the conveying pipe (12), and a control box (1) with a wiring bar (2) is installed on the side of the heating box (3).

2. The acid mist exhaust gas generator as described in claim 1, characterized in that: Each electric heating tube (5) is located in the heating box (3) in an annular shape and the acid tank (6) is located in the cylindrical space formed by each electric heating tube (5). The electrical terminals at the ends of each electric heating tube (5) are installed and fixed on the same side wall of the heating box (3), and each exposed terminal is connected to the control box (1).

3. The acid mist generator as described in claim 2, characterized in that: in Multiple temperature probes (4) are also installed on the side wall of the heating box (3). The measuring ends of each temperature probe (4) are located at different positions inside the heating box (3), and each temperature probe (4) is connected to the control box (1).

4. The acid mist exhaust gas generator as described in claim 3, characterized in that: The air delivery assembly includes a blower box (13) with an open top and a mounting plate (15) and a blower (14) mounted on the blower box (13), with the top of the delivery pipe (12) passing through the blower box (13).

5. The acid mist exhaust gas generator as described in claim 4, characterized in that: A flange is provided at the lower end of the delivery pipe (12) and a flange is provided at the upper end of the liquid filling pipe (7). The two flanges are connected together and a sealing gasket is provided between them.

6. The acid mist exhaust gas generator as described in claim 5, characterized in that: A pressure relief safety valve (8) is installed at the top of the refueling pipe (9).

7. The acid mist exhaust gas generator as described in any one of claims 1 to 6, characterized in that: The mobile vehicle includes a chassis (22) with wheels (23) and a handrail (18) mounted at the rear of the chassis (22).

8. The acid mist exhaust gas generator as described in claim 7, characterized in that: The controllable lifting device includes a cross-shaped fork arm (21) and a lifting platform (19) located above the cross-shaped fork arm (21). The upper front end of the cross-shaped fork arm (21) is hinged to the front of the lifting platform (19), and the lower front end is hinged to the front of the chassis (22). The upper rear end of the cross-shaped fork arm (21) is equipped with a track wheel that moves along the track on the lifting platform (19), and the lower rear end of the cross-shaped fork arm (21) is equipped with a track wheel that moves along the track on the chassis (22). An electric push rod (20) is also installed between the chassis (22) and the central shaft of the cross-shaped fork arm (21). The bottom of the support box (17) is fixedly connected to the lifting platform (19).

Images