Dust collection device driven by high-pressure gas

Abstract

The utility model relates to the technical field of cleaning equipment, in particular to a dust collection device driven by high-pressure gas, which comprises a shell, a dust collection port is arranged on the shell, and a first gas pipe and a second gas pipe are inserted into the shell. The end, inserted into the shell, of the first air pipe and the end, inserted into the shell, of the second air pipe are aligned and spaced, the interval position of the first air pipe and the second air pipe is aligned with the dust collection opening, and the other end of the first air pipe is used for being connected with an external air pipe. According to the utility model, no heating phenomenon and no spark are generated in the working process, the provided suction force is stable, and the use and maintenance are convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of cleaning equipment, more particularly to a dust suction device driven by high-pressure gas. BACKGROUND

[0002] Automobile parts production and manufacturing process often needs to use dust suction equipment to carry out dust removal treatment to parts, and the demand of automobile parts enterprises for dust suction equipment is usually to purchase the existing dust suction equipment on the market or to develop and manufacture by the internal equipment manufacturing department of the enterprise. The existing conventional dust suction device is usually composed of an air inlet, an air inlet pipe, a filter dust bag, fan blades, a motor, an air outlet and the like, and the rotation of the fan blades driven by the motor causes the flow of gas to form a low pressure area and a pressure difference with the outside, so as to suck the dust into the filter dust bag. However, in this technical solution, the power source is provided by the motor, and the motor generates heat after working for a long time. The output power of the motor decreases with the increase of the temperature of the motor, which finally causes the instability of the output power of the motor, making the suction force of the dust suction equipment unstable, and unable to be applied to the use scene requiring long-term continuous work. At the same time, due to the short circuit phenomenon in the running process of the motor, sparks may be generated inside the motor, which is not suitable for special working scenes such as flammable gas. SUMMARY

[0003] To solve the problems of easy heating, spark generation and unstable suction force of the motor as the power source in the prior art, the utility model provides a dust suction device driven by high-pressure gas, which can ensure that neither heating nor sparks are generated during work, and can provide stable suction force, which is convenient to use and maintain.

[0004] To solve the above technical problems, the utility model provides a dust suction device driven by high-pressure gas, which comprises a shell, wherein a dust suction port is formed on the shell, a first air pipe and a second air pipe are inserted into the shell, one end of the first air pipe inserted into the shell is aligned with one end of the second air pipe inserted into the shell and is spaced apart from the one end of the second air pipe, the space between the first air pipe and the second air pipe is aligned with the dust suction port, and the other end of the first air pipe is used to connect with an external air pipe.

[0005] In the technical solution, a relatively closed space is formed inside the shell for separating the inside of the shell from the outside, collecting the dust sucked in and generating suction force. The shell is provided with a dust suction port for connecting the outside with the inside of the shell, so that the dust in the outside can be sucked into the inside of the shell through the dust suction port and collected. The first air pipe and the second air pipe are inserted into the inside of the shell, the end of the first air pipe inserted into the shell is aligned with the end of the second air pipe inserted into the shell, there is a gap between the first air pipe and the second air pipe, and the gap between the first air pipe and the second air pipe is aligned with the dust suction port. The first air pipe and the second air pipe form a relatively closed channel for gas flow. When the gas in the first air pipe and the second air pipe flows in a direction and at a high speed, the air pressure in the first air pipe and the second air pipe will be lower than the air pressure at other positions in the shell, and as the flow speed of the gas in the first air pipe and the second air pipe increases, the pressure difference between the air pressure in the first air pipe and the second air pipe and the air pressure at other positions in the shell will also increase. There is a gap between the first air pipe and the second air pipe, the gas in the first air pipe flows through the gap to the second air pipe, so the flow speed of the gas in the gap is the same as that in the first air pipe and the second air pipe, the pressure in the gap and the surrounding space is lower than that at other positions in the shell, thereby generating suction force. The gap is aligned with the dust suction port, so the suction force generated at the dust suction port can suck the dust in the outside into the inside of the shell. The first air pipe and the second air pipe are used to limit the flow direction of the high-speed flowing gas, so as to avoid the high-speed gas dispersing in the shell and losing the effect of forming pressure difference. When dust removal is needed, the dust suction port is aligned with the position to be cleaned, and then the end of the first air pipe away from the shell is connected to the external high-pressure gas source. The gas in the high-pressure gas source flows in the first air pipe at a high speed under the action of pressure, passes through the gap and finally flows into the second air pipe, thereby generating a pressure difference to suck the dust in the position to be cleaned into the inside of the shell through the dust suction port. The inside of the shell is a relatively closed space, which can collect dust and avoid the dust dispersing to the outside. In the whole dust removal process, all the power is provided by the external high-pressure gas source, and only the stable high-pressure gas source is needed to provide stable suction force to the dust suction port, which will not decay. It is suitable for working scenes that need long-time continuous dust removal, and there is no short circuit and electric spark phenomenon because there is no participation of electric energy, which is suitable for special working conditions such as the presence of flammable gas. The structure is simple, not easy to malfunction and strong in reliability.

[0006] Preferably, the end of the first air pipe inserted into the shell is provided with a jet pipe opening, the jet pipe opening is spaced apart from the second air pipe, and the jet pipe opening is a tapered structure with a diameter gradually decreasing in the direction of the second air pipe.

[0007] Preferably, the dust suction port protrudes outwardly from the shell, and the cross-sectional area of the dust suction port decreases in the direction of the shell.

[0008] Preferably, a dust falling port is arranged on the shell on the side opposite to the dust suction port, and a first dust collecting bag is sleeved on the dust falling port.

[0009] Preferably, the dust falling port protrudes from the outer surface of the shell, and the cross section of the dust falling port gradually decreases away from the shell.

[0010] Preferably, the dust suction device further comprises a dust collecting frame, one end of the second air pipe away from the shell is inserted into the dust collecting frame, and an air outlet is further arranged on the dust collecting frame.

[0011] Preferably, the air outlet deviates from the direction of the axis of the second air pipe.

[0012] Preferably, a filtering device is arranged in the dust collecting frame, the filtering device is a second dust collecting bag for gas passing through, and the second dust collecting bag is sleeved on one end of the second air pipe inserted into the dust collecting frame.

[0013] Preferably, a filter screen through which gas and dust can pass is further arranged at the dust suction port, and the filter screen closes the dust suction port.

[0014] Preferably, the first air pipe and the second air pipe are made of steel material.

[0015] Compared with the prior art, the dust suction device driven by high-pressure gas has the advantages that: in the dust suction device driven by high-pressure gas, the high-speed flow of high-pressure gas forms a pressure difference to generate suction force, so that the heating phenomenon and sparks are avoided during the working process, and the dust suction device is suitable for special working scenes such as the presence of flammable gas. As long as the high-pressure gas source does not change, the dust suction port can provide stable suction force, and the dust suction device is suitable for working scenes that need to continuously suck dust for a long time. The shell with a relatively closed space is arranged to collect and contain the sucked dust, which is beneficial to the centralized treatment of the dust and avoids the dust from escaping back into the environment. The structure is simple, not prone to failure, reliable, and convenient to use and maintain. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a schematic view of the dust suction device driven by high-pressure gas of the utility model;

[0017] Figure 2 is a schematic view of the shell in the dust suction device driven by high-pressure gas of the utility model;

[0018] Figure 3 is a schematic view of the dust collecting frame in the dust suction device driven by high-pressure gas of the utility model.

[0019] In the drawings: 1, shell; 2, dust suction port; 3, first air pipe; 4, second air pipe; 5, jet pipe port; 6, dust fall port; 7, first dust collecting bag; 8, dust collecting frame; 9, air outlet; 10, second dust collecting bag. DETAILED DESCRIPTION

[0020] The drawings are only used for illustrative description, and should not be understood as limiting the patent; in order to better illustrate the embodiment, some components in the drawings can be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings can be omitted. The positional relationship described in the drawings is only used for illustrative description, and should not be understood as limiting the patent.

[0021] The same or similar reference numerals in the drawings of the embodiments of the utility model correspond to the same or similar components; in the description of the utility model, it is understood that if the terms "upper", "lower", "left", "right", "long", "short" and the like indicate the orientation or positional relationship shown in the drawings, only for the convenience of describing the utility model and simplifying the description, and not indicating or implying that the device or element referred to must have a specific orientation, structure and operation, therefore the terms describing the positional relationship in the drawings are only used for illustrative description, and should not be understood as limiting the patent, for those skilled in the art, the specific meaning of the above terms can be understood according to the specific situation.

[0022] The technical scheme of the utility model will be further described in detail below through specific embodiments and in conjunction with the drawings:

[0023] Embodiment 1

[0024] As Figure 1 , 2As shown, a high-pressure gas driven dust collection device includes a housing 1, a dust suction port 2 is formed on the housing 1, a first air pipe 3 and a second air pipe 4 are inserted into the housing 1, one end of the first air pipe 3 inserted into the housing 1 is aligned with one end of the second air pipe 4 inserted into the housing 1 and is spaced apart, the space between the first air pipe 3 and the second air pipe 4 is aligned with the dust suction port 2, and the other end of the first air pipe 3 is used to be connected with an external air pipe. A relatively closed space is formed inside the housing 1 to separate the inside of the housing 1 from the outside, to collect the dust sucked in and to form a negative pressure to generate suction. The dust suction port 2 is arranged on the housing 1 to communicate the outside with the inside of the housing 1, and the dust in the outside can be sucked into the inside of the housing 1 through the dust suction port 2 and be collected. The first air pipe 3 and the second air pipe 4 are inserted into the inside of the housing 1, one end of the first air pipe 3 inserted into the housing 1 is aligned with one end of the second air pipe 4 inserted into the housing 1, there is a space between the first air pipe 3 and the second air pipe 4, and the space between the first air pipe 3 and the second air pipe 4 is aligned with the dust suction port 2. The first air pipe 3 and the second air pipe 4 form a relatively closed channel for gas flow, when the gas in the first air pipe 3 and the second air pipe 4 flows directionally and at a high speed, the air pressure in the first air pipe 3 and the second air pipe 4 will be lower than the air pressure at other positions of the housing 1, and as the flow speed of the gas in the first air pipe 3 and the second air pipe 4 increases, the pressure difference between the air pressure in the first air pipe 3 and the second air pipe 4 and the air pressure at other positions of the inside of the housing 1 will also increase. There is a space between the first air pipe 3 and the second air pipe 4, the gas in the first air pipe 3 flows to the second air pipe 4 through the space, so the flow speed of the gas in the space is the same as that in the first air pipe 3 and the second air pipe 4, the pressure in the space and the surrounding space is lower than that at other positions of the inside of the housing 1, thereby generating suction. The space is aligned with the dust suction port 2, so the suction at the dust suction port 2 can suck the dust in the outside into the inside of the housing 1. The first air pipe 3 and the second air pipe 4 are used to limit the flow direction of the high-speed flowing gas, to avoid the high-speed gas dispersing in the housing 1 and losing the effect of forming pressure difference. When dust removal is needed, the dust suction port 2 is only needed to be aligned with the position needing dust removal, then the end of the first air pipe 3 away from the housing 1 is connected with an external high-pressure gas source, the gas in the high-pressure gas source flows in the first air pipe 3 at a high speed under the action of pressure, passes through the space and finally flows into the second air pipe 4, thereby generating a pressure difference to suck the dust in the position needing dust removal into the inside of the housing 1 through the dust suction port 2, the inside of the housing 1 is a relatively closed space to collect dust and avoid the dust dispersing to the outside. In the whole dust collection process, all power is provided by the external high-pressure gas source, only the stable suction of the dust suction port 2 is needed to be ensured, which will not decay, is suitable for working scenes needing long-time continuous dust collection, and as there is no participation of electric energy, short circuit and electric spark will not occur, which is suitable for special working conditions such as existence of combustible gas. The structure is simple, failure is not easy to occur, and the reliability is strong.

[0025] As shown in Figure 2 the first gas pipe 3 is inserted into the shell 1, and the end of the first gas pipe 3 is provided with a jet pipe 5, the jet pipe 5 is spaced from the second gas pipe 4, and the jet pipe 5 is a frustum structure with a diameter decreasing towards the direction of the second gas pipe 4. Because of the spacing between the first gas pipe 3 and the second gas pipe 4, and because of the lack of constraints at the detection position, when the high-speed gas flows through the spacing, a certain dissipation will be generated. Therefore, the end of the first gas pipe 3 inserted into the shell 1 is provided with a jet pipe 5, the jet pipe 5 is a frustum structure with a diameter decreasing towards the direction of the second gas pipe 4, and a passage for the gas to pass through is formed in the jet pipe 5, wherein the diameter of the end of the jet pipe 5 connected with the first gas pipe 3 is the same as the diameter of the first gas pipe 3, and the jet pipe 5 is in sealed connection with the first gas pipe 3, the cross section of the jet pipe 5 decreases towards the direction of the second gas pipe 4, so that the diameter of the end of the jet pipe 5 close to the second gas pipe 4 is smaller than the diameter of the first gas pipe 3, and the diameter of the second gas pipe 4 is not smaller than the diameter of the first gas pipe 3, so the diameter of the end of the jet pipe 5 close to the second gas pipe 4 must be smaller than the diameter of the second gas pipe 4, and the diameter of the gas flow out of the jet pipe 5 is also smaller than the diameter of the second gas pipe 4. Even if the high-speed gas is diffused to a certain extent at the spacing, it can still be ensured that most of the high-speed gas flows into the second gas pipe 4 rather than being diffused in the shell 1 to cause the internal pressure of the shell 1 to rise. At the same time, the diameter of the end of the jet pipe 5 close to the second gas pipe 4 is smaller than the diameter of the second gas pipe 4, so that a "narrow pipe effect" is formed at this position, which increases the pressure difference between this position and other positions inside the shell 1, and increases the suction force on the dust.

[0026] As shown in Figure 2 the dust suction port 2 protrudes from the outside of the shell 1, and the cross-sectional area of the dust suction port 2 decreases towards the direction of the shell 1. The end of the dust suction port 2 away from the shell 1 is wider, so that the dust suction port 2 has a larger suction area, facilitating the suction of dust. The end of the dust suction port 2 close to the shell 1 is narrower, so that this end is easier to align with the spacing between the first gas pipe 3 and the second gas pipe 4, facilitating the suction force.

[0027] Example 2

[0028] This embodiment is similar to the above-mentioned embodiment 1, and the difference is that, as shown in Figure 2As shown, the dust falling port 6 is provided on the shell 1 on the side opposite to the dust suction port 2, and the first dust collecting bag 7 is sleeved on the dust falling port 6. The dust absorbed into the shell 1 can be discharged through the dust falling port 6 to realize the cleaning of the inside of the shell 1. The first dust collecting bag 7 is sleeved on the dust falling port 6, so that the dust falling from the dust falling port 6 directly enters the first dust collecting bag 7, and the dust is not in contact with the outside during the whole process, avoiding the dust from leaking to the outside again. The first dust collecting bag 7 is used for collecting and containing the dust, which is convenient for subsequent carrying and processing of the dust. When the first dust collecting bag 7 is filled with dust, it only needs to be replaced.

[0029] As shown in the drawings, Figure 2 The dust falling port 6 protrudes from the outer surface of the shell 1, and the cross section of the dust falling port 6 gradually decreases away from the shell 1. The part of the dust falling port 6 protruding from the outer surface of the shell 1 is convenient for sleeving the first dust collecting bag 7, and the cross section of the dust falling port 6 decreases away from the shell 1, so that the end of the dust falling port 6 towards the shell 1 is large, and the end connected with the outside is small. The large end of the dust falling port 6 towards the shell 1 is conducive to the dust in the shell 1 falling into the dust falling port 6, and the small end of the dust falling port 6 connected with the outside is conducive to the concentration of dust on one hand, and reduces the area of the dust falling port 6 connected with the outside on the other hand, avoiding too much air from the dust falling port 6 into the shell 1 when the negative pressure is formed in the shell 1, thereby reducing the suction force at the dust suction port 2.

[0030] As shown in the drawings, Figure 1 , 3 The dust collecting device further comprises a dust collecting frame 8, and the end of the second air pipe 4 away from the shell 1 is inserted into the dust collecting frame 8. The dust collecting frame 8 is further provided with an air outlet 9. When the dust is sucked into the shell 1, part of the dust may enter the second air pipe 4 along with the flowing gas. In order to avoid the dust in the second air pipe 4 from re-entering the outside environment, the dust collecting frame 8 needs to be arranged at the end of the second air pipe 4 away from the shell 1. The dust collecting frame 8 can collect the dust in the air flowing out of the second air pipe 4, and the dust collecting frame 8 is further provided with an air outlet 9. After the air in the second air pipe 4 enters the dust collecting frame 8, it is filtered by the filtering device to remove the dust, and the air after removing the dust enters the outside through the air outlet 9 of the dust collecting frame 8.

[0031] As shown in the drawings, Figure 3 The air outlet 9 deviates from the direction of the axis of the second air pipe 4. Since the gas in the second air pipe 4 is high-speed and high-pressure, direct discharge may cause harm, so the air outlet 9 does not face the direction of the second air pipe 4, so that the high-speed and high-pressure gas cannot directly rush out of the air outlet 9. When the high-speed and high-pressure gas is discharged from the second air pipe 4, it is first buffered by the filtering device and the dust collecting frame 8 before flowing out of the air outlet 9.

[0032] As shown in the drawings, Figure 3As shown, the dust collecting frame 8 is provided with a filtering device, which is a second dust collecting bag 10 for allowing gas to pass through, and the second dust collecting bag 10 is sleeved on one end of the second air pipe 4 inserted into the dust collecting frame 8. The second dust collecting bag 10 limits the passage of dust without affecting the normal passage of gas, thereby realizing the separation of dust and air. Meanwhile, the second dust collecting bag 10 can uniformly collect dust, which is convenient for subsequent dust treatment and transportation. When the second dust collecting bag 10 is filled with dust, it can be replaced.

[0033] Embodiment 3

[0034] This embodiment is similar to the above-mentioned embodiment 1, and the difference is that, as shown in Figure 1 , 2 As shown, the dust suction port 2 is also provided with a filter screen for allowing gas and dust to pass through, and the filter screen closes the dust suction port 2 and allows gas and dust to pass through. The filter screen is arranged at the dust suction port 2 to limit the entry of other objects with larger volume without affecting the passage of dust and air, thereby avoiding internal blockage and damage.

[0035] As shown in Figure 1 The first air pipe 3 and the second air pipe 4 are made of steel material. Since the inside of the first air pipe 3 and the second air pipe 4 is high-speed gas with high pressure, the steel material structure is required to withstand the high gas pressure and ensure that the shape of the first air pipe 3 and the second air pipe 4 will not change.

[0036] Obviously, the above embodiments of the present application are only examples for clearly illustrating the present application, and are not intended to limit the implementation modes of the present application. For those skilled in the art, other different forms of changes or modifications can be made on the basis of the above description. Here, it is not necessary and impossible to enumerate all the implementation modes. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the claims of the present application.

Claims

1. A high pressure gas driven dust extraction device, characterized in that, The dust collecting device comprises a shell (1), a dust suction port (2) is formed on the shell (1), a first air pipe (3) and a second air pipe (4) are inserted into the shell (1), one end of the first air pipe (3) and one end of the second air pipe (4) inserted into the shell (1) are aligned and spaced apart, the spacing part of the first air pipe (3) and the second air pipe (4) is aligned with the dust suction port (2), and the other end of the first air pipe (3) is used for being connected with an external air pipe.

2. A high-pressure gas-driven dust extraction device according to claim 1, characterized in that One end of the first air pipe (3) inserted into the shell (1) is provided with a jet pipe port (5), the jet pipe port (5) is spaced apart from the second air pipe (4), and the jet pipe port (5) is a tapered structure with a diameter gradually decreasing in the direction of the second air pipe (4).

3. A high-pressure gas-driven dust extraction device according to claim 1, characterized in that The dust suction port (2) protrudes from the outer side of the shell (1), and the cross-sectional area of the dust suction port (2) gradually decreases in the direction of the shell (1).

4. A high-pressure gas-driven dust extraction device according to claim 1, characterized in that A dust falling port (6) is arranged on the shell (1) on the side opposite to the dust suction port (2), and a first dust collecting bag (7) is sleeved on the dust falling port (6).

5. A high pressure gas driven dust extraction device according to claim 4, characterized in that The dust falling port (6) protrudes from the outer surface of the shell (1), and the cross section of the dust falling port (6) gradually decreases in the direction away from the shell (1).

6. A high-pressure gas-driven dust extraction device according to claim 1, characterized in that The dust collecting device further comprises a dust collecting frame (8), one end of the second air pipe (4) away from the shell (1) is inserted into the dust collecting frame (8), and an air outlet (9) is further formed on the dust collecting frame (8).

7. A high pressure gas driven dust extraction device according to claim 6, characterized in that The air outlet (9) deviates from the direction of the axis of the second air pipe (4).

8. A high-pressure gas-driven dust extraction device according to claim 6, characterized in that The dust collecting frame (8) is provided with a filtering device, the filtering device is a second dust collecting bag (10) for gas passing through, and the second dust collecting bag (10) is sleeved on one end of the second air pipe (4) inserted into the dust collecting frame (8).

9. A high-pressure gas-driven dust extraction device according to claim 1, characterized in that A filter screen through which gas and dust pass is further arranged at the dust suction port (2), and the filter screen closes the dust suction port (2).

10. A high-pressure gas-driven dust extraction device according to claim 1, characterized in that The first air pipe (3) and the second air pipe (4) are made of steel material.

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