Dust powder generating device

Abstract

The utility model discloses a sand dust powder generating device which comprises a storage tank, an air supply assembly, a KCI powder pump, a powder spraying gun and a pressure adjusting controller, the KCI powder pump is installed at the top of the storage tank and used for conveying sand dust powder in the storage tank into the powder spraying gun to be sprayed out, and the pressure adjusting controller is arranged at the top of the storage tank and used for adjusting the pressure of the storage tank. A second connecting pipe is connected between the KCI powder pump and the powder spraying gun, the top of the powder suction pipe is connected with the KCI powder pump, a powder partition plate is installed at the bottom of an inner cavity of the storage tank, a tank gas connecting opening is formed in the bottom of one side of the storage tank, and a third connecting pipe is connected between the tank connecting opening and the tank gas connecting opening. According to the dust storage tank, the storage tank, the KCI powder pump, the powder spraying gun, the pressure adjusting controller and the air supply assembly are used in a matched mode, the spraying speed and content of dust powder can be changed and controlled through the pressure adjusting controller, and therefore the practical performance of the dust storage tank is improved, and a large amount of dust sources can be stored in the dust storage tank with the large capacity at a time.

Description

TECHNICAL FIELD

[0001] The utility model relates to sand dust powder generation technical field, especially sand dust powder generation device. BACKGROUND

[0002] In today's rapidly changing technology, various precision instruments and equipment play a vital role in various industries, however, these devices often need to go through a series of strict tests before being put into use to ensure their stability and reliability in various extreme environments, among which, sand dust test pipe section as a kind of test equipment simulating sand dust environment plays an irreplaceable role in evaluating the performance of products in sand dust environment.

[0003] Common on the market, sand dust test pipe section is named "sand dust test box", which simulates the destructive effect of natural wind-sand climate on products, is suitable for detecting the sealing performance of product shell, and is mainly used for the test of IP5X and IP6X levels specified in the shell protection level standard, its principle is that the equipment has vertical circulating airflow of dust load, the test dust can be recycled, the bottom of the air duct is connected with the conical hopper interface, the fan inlet and outlet are directly connected with the air duct, and the working chamber top diffusion port is connected with the working chamber body at a proper position, forming an "O" type closed vertical dust blowing circulation system, so that the airflow can flow smoothly, and the dust is dispersed uniformly to the maximum extent, the sand dust generation device uniformly disperses the sand dust particles in the test box by vibration or airflow, forms a certain concentration of sand dust environment, and the fan drives the sand dust with a certain concentration to blow over the surface of the test sample at a certain flow rate, tests the ability of the test sample to resist the penetration of dust particles, the ability to resist the abrasion or blocking effect of sand, and the ability to store and run.

[0004] The common dust aerosol generator has the following problems:

[0005] The dust emission amount is small, and the common dust aerosol generator has a dust emission amount of less than 500g / h. If the sandstorm experiment is simulated, the sand dust emission amount needs to be greater than 2000g / h or more;

[0006] The dust particle size is small, and the common dust aerosol generator is mainly matched with various high-efficiency filter test benches, according to EN779-2012, ISO16890 and other standards, the selected load dust source in the test process is mainly A2 dust, so the dust source of the general dust aerosol generator is between 0-100um, and the speed and concentration of the sand dust powder spray cannot be changed according to the sandstorm simulation environment. UTILITY MODEL CONTENTS

[0007] The utility model aims at providing a sand dust powder generation device to solve the problems in the above background technology.

[0008] To achieve the above object, the utility model provides the following technical scheme: a sand dust powder generating device, include:

[0009] The storage tank is used for storing sand dust powder, and the gas supply assembly is used for supplying gas for discharging sand dust powder from the storage tank;

[0010] The KCI powder pump is installed on the top of the storage tank, and the KCI powder pump is used to deliver sand dust powder in the storage tank to the inside of the powder gun for spraying;

[0011] The pressure regulating controller is arranged on the top of the storage tank, and the pressure regulating controller is used to adjust the distribution of gas flow from the distribution gas supply assembly to the KCI powder pump and the storage tank.

[0012] Preferably, the KCI powder pump and the powder gun are connected by a second connecting pipe, a powder suction pipe is installed in the storage tank, and the top of the powder suction pipe is connected with the KCI powder pump.

[0013] Preferably, a powder isolation plate is installed at the bottom of the inner cavity of the storage tank, a tank connecting gas port is installed at the bottom of one side of the storage tank, an air inlet and a tank connecting port are arranged on one side of the pressure regulating controller, and a third connecting pipe is connected between the tank connecting port and the tank connecting gas port.

[0014] Preferably, the gas supply assembly comprises:

[0015] An oil-water separator is arranged on one side of the pressure regulating controller.

[0016] A compressed air conveying pipe is installed at the air inlet end of the oil-water separator.

[0017] A first connecting pipe is installed between the oil-water separator and the air inlet.

[0018] Preferably, a first pressurizing interface is arranged on the front surface of the pressure regulating controller, the first pressurizing interface is connected with the KCI powder pump by a fifth connecting pipe, a flow regulating knob for controlling the gas flow rate in the first pressurizing interface is installed on the front surface of the pressure regulating controller, and a flow regulating indication table is installed on the front surface of the pressure regulating controller.

[0019] Preferably, a second pressurizing interface is arranged on the front surface of the pressure regulating controller, the second pressurizing interface is connected with the KCI powder pump by a fourth connecting pipe, a sand dust concentration regulating knob for controlling the gas flow rate in the second pressurizing interface is installed on the front surface of the pressure regulating controller, and a sand dust concentration regulating indication table is installed on the front surface of the pressure regulating controller.

[0020] The technical effects and advantages of this utility model are:

[0021] The utility model utilizes the coordinated use of a storage tank, a KCI powder pump, a powder spraying gun, a pressure regulating controller and an air supply component, and the pressure regulating controller can change the speed and content of the sand and dust powder spraying, thereby improving its practical performance. The large-capacity sand and dust storage tank can store a large amount of sand and dust sources at one time, and under the action of the oil-water separator, the moisture content in the compressed air can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Fig. 1 This is a schematic diagram of the front structure of the utility model.

[0023] Fig. 2 This is a schematic diagram of the overall structure of the storage tank of the utility model.

[0024] Fig. 3 This is a schematic diagram of the overall structure of the pressure regulating controller of the utility model.

[0025] In the figure: 1. Storage tank; 2. KCI powder pump; 3. Powder spray gun; 4. Pressure regulating controller; 41. Air inlet; 42. Tank connection port; 43. First pressurization interface; 44. Flow adjustment knob; 45. Flow adjustment indicator; 46. Second pressurization interface; 47. Dust concentration adjustment knob; 48. Dust concentration adjustment indicator; 5. Air supply assembly; 51. Oil-water separator; 52. Compressed air delivery pipe; 53. First connecting pipe; 6. Powder suction pipe; 7. Powder partition plate; 8. Second connecting pipe; 9. Third connecting pipe; 10. Fourth connecting pipe; 11. Fifth connecting pipe; 12. Tank air connection port. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] The utility model provides Figs. 1-3The dust powder generating device shown in the application comprises a storage tank 1, a gas supply assembly 5, a KCI powder pump 2, a powder gun 3 and a pressure regulating controller 4. The storage tank 1 is used for storing dust powder. The gas supply assembly 5 is used for supplying gas for discharging dust powder from the storage tank 1. The KCI powder pump 2 is installed on the top of the storage tank 1. The KCI powder pump 2 is used for conveying the dust powder in the storage tank 1 to the inside of the powder gun 3 for spraying. The pressure regulating controller 4 is arranged on the top of the storage tank 1. The pressure regulating controller 4 is used for regulating the distribution of the gas flow from the distribution gas supply assembly 5 to the KCI powder pump 2 and the storage tank 1. A second connecting pipe 8 is connected between the KCI powder pump 2 and the powder gun 3. A powder suction pipe 6 is installed in the inside of the storage tank 1. The top of the powder suction pipe 6 is connected with the KCI powder pump 2. A dust separation plate 7 is installed at the bottom of the inside cavity of the storage tank 1. A tank connecting gas port 12 is installed at the bottom of one side of the storage tank 1. An air inlet 41 and a tank connecting port 42 are arranged on one side of the pressure regulating controller 4. A third connecting pipe 9 is connected between the tank connecting port 42 and the tank connecting gas port 12. The gas supply assembly 5 conveys gas to the inside of the pressure regulating controller 4. The pressure regulating controller 4 continuously introduces pulse compressed air into the dust storage tank 1. On the one hand, the dust storage tank 1 maintains a high positive pressure environment. On the other hand, the pulse air makes the dust particles in the dust storage tank 1 vibrate, forming a mixture of dust and air, so that the dust concentration is more uniform. The mixture of dust and air in the dust storage tank 1 is conveyed to the KCI powder pump 2 through the powder suction pipe 6. The KCI powder pump 2 is driven by the Venturi principle in fluid mechanics. The dust conveying system adopts the Venturi physical principle. The high-speed airflow drives the dust into the powder pipe and is conveyed to the powder gun. Under the action of the spray head of the powder gun 3, uniform dust spray is formed.

[0028] The KCI powder pump 2 uses the Venturi principle in fluid mechanics. When the fluid passes through the block, the port air pressure is low, and the adsorption effect causes the flow. When the gas or solid powder flows in the Venturi tube, the dynamic pressure reaches the maximum value and the static pressure reaches the minimum value at the narrowest part of the pipeline. The speed of the solid powder rises due to the change of the cross-sectional area of the flow. The entire flow experiences the process of pipe narrowing at the same time, so the pressure decreases at the same time, thereby generating a pressure difference. The pressure difference is used to measure or provide an external suction force for the fluid, so as to convey it to the powder gun 3.

[0029] Further, the gas supply assembly 5 comprises an oil-water separator 51, a compressed air conveying pipe 52 and a first connecting pipe 53. The oil-water separator 51 is arranged on one side of the pressure regulating controller 4. The compressed air conveying pipe 52 is installed at the air inlet end of the oil-water separator 51. The compressed air conveying pipe 52 is connected with an external air compressor. The first connecting pipe 53 is installed between the oil-water separator 51 and the air inlet 41. The oil-water separator 51 can separate water vapor in the conveyed compressed gas, thereby reducing the influence of water in the compressed gas on the spraying of the dust powder.

[0030] Especially, the front surface of the pressure regulating controller 4 is provided with a first pressurizing interface 43, the first pressurizing interface 43 is connected with the fifth connecting pipe 11 of the KCI powder pump 2, the front surface of the pressure regulating controller 4 is installed with a flow regulating knob 44 for controlling the gas flow rate inside the first pressurizing interface 43, the flow regulating knob 44 is used for adjusting the size of the air flow rate sprayed by the sand dust generating device terminal powder spraying gun 3, the front surface of the pressure regulating controller 4 is installed with a flow regulating indication table 45, the flow regulating indication table 45 is used for indicating the air flow rate value sprayed by the sand dust generating device terminal powder spraying gun 3, the front surface of the pressure regulating controller 4 is provided with a second pressurizing interface 46, the second pressurizing interface 46 is connected with the fourth connecting pipe 10 of the KCI powder pump 2, the front surface of the pressure regulating controller 4 is installed with a sand dust concentration regulating knob 47 for controlling the gas flow rate inside the second pressurizing interface 46, the sand dust concentration regulating knob 47 is used for adjusting the size of the sand dust particle concentration sprayed by the sand dust generating device terminal powder spraying gun 3, the front surface of the pressure regulating controller 4 is installed with a sand dust concentration regulating indication table 48, the sand dust concentration regulating indication table 48 is used for indicating the sand dust particle concentration value in the air sprayed by the sand dust generating device terminal powder spraying gun 3, the pressure regulating controller 4 is internally installed with a microcomputer centralized control circuit, by adjusting the flow regulating knob 44 and the sand dust concentration regulating knob 47 on the surface of the controller, the flow rate of the compressed air distributed to each component is controlled, so as to control the air flow rate and the sand dust concentration of the sand dust generating device terminal.

[0031] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and not for limiting the present application, although the foregoing detailed description of the present application, for the skilled in the art, it still can be modified, or part of the technical features of the equivalent replacement, within the spirit and principles of the present application, any modification, equivalent replacement, improvement, etc., should be included in the scope of protection of the present application.

Claims

1. A dust powder generating device, characterized by comprising: It includes: A storage tank (1) for storing dust powder and a gas supply assembly (5) for discharging gas to the storage tank (1); A KCI powder pump (2) installed on the top of the storage tank (1), which is used to transport the dust powder inside the storage tank (1) to the inside of the powder gun (3) for spraying; A pressure regulating controller (4) provided on the top of the storage tank (1), which is used to adjust the distribution of gas flow from the distribution gas supply assembly (5) to the KCI powder pump (2) and the storage tank (1).

2. A dusting powder generating device according to claim 1, wherein The KCI powder pump (2) and the powder gun (3) are connected by a second connecting pipe (8), and the inside of the storage tank (1) is provided with a powder suction pipe (6), and the top of the powder suction pipe (6) is connected with the KCI powder pump (2).

3. A dust cloud generating device according to claim 1, wherein The bottom of the inner cavity of the storage tank (1) is provided with a dust separation plate (7), and the bottom of one side of the storage tank (1) is provided with a tank connection gas port (12), and one side of the pressure regulating controller (4) is provided with an air inlet (41) and a tank connection port (42), and the tank connection port (42) and the tank connection gas port (12) are connected by a third connecting pipe (9).

4. A dusting powder generating device according to claim 3, wherein The gas supply assembly (5) includes: An oil-water separator (51) provided on one side of the pressure regulating controller (4); A compressed air conveying pipe (52) installed on the air inlet end of the oil-water separator (51); A first connecting pipe (53) installed between the oil-water separator (51) and the air inlet (41).

5. A dusting powder generating device according to claim 3, wherein The front of the pressure regulating controller (4) is provided with a first pressure interface (43), the first pressure interface (43) is connected with the KCI powder pump (2) by a fifth connecting pipe (11), the front of the pressure regulating controller (4) is provided with a flow regulating knob (44) for controlling the gas flow rate in the first pressure interface (43), and the front of the pressure regulating controller (4) is provided with a flow regulating indication table (45).

6. A dusting powder generating device according to claim 5, wherein The front of the pressure regulating controller (4) is provided with a second pressure interface (46), the second pressure interface (46) is connected with the KCI powder pump (2) by a fourth connecting pipe (10), the front of the pressure regulating controller (4) is provided with a dust concentration adjusting knob (47) for controlling the gas flow rate in the second pressure interface (46), and the front of the pressure regulating controller (4) is provided with a dust concentration adjusting indication table (48).

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