CN112387711A

CN112387711A - Dry ice decontamination device

Info

Publication number: CN112387711A
Application number: CN202011170741.6A
Authority: CN
Inventors: 方健; 尹旷; 莫文雄; 王红斌; 王勇; 田研; 杨帆
Original assignee: Guangzhou Power Supply Bureau of Guangdong Power Grid Co Ltd
Current assignee: Guangzhou Power Supply Bureau of Guangdong Power Grid Co Ltd
Priority date: 2020-10-28
Filing date: 2020-10-28
Publication date: 2021-02-23

Abstract

The invention relates to a dry ice dirt removing device which comprises a grounding base, a cleaning assembly and a dry ice conveying assembly, wherein the grounding base is arranged on the ground; the cleaning assembly comprises a connecting piece, a driving piece and a spray head, the connecting piece is assembled on the grounding base, the other end of the connecting piece is communicated with the spray head, and the spray head is configured to be used for spraying dry ice conveyed by the dry ice conveying assembly; on driving piece and shower nozzle all located the connecting piece, the driving piece can drive the shower nozzle and be circumferential motion and do the radial motion that is close to or keeps away from the outer peripheral face in a plane around the outer peripheral face of treating the equipment of decontaminating for the connecting piece, and the driving piece can also drive the shower nozzle and be the motion of pitching for the connecting piece along the extending direction of treating the equipment of decontaminating. The distance between the spray head and the outer peripheral surface of the equipment to be cleaned is adjusted, so that the requirements of different cleaning distances are met, and the circumferential direction and the pitching direction of the equipment to be cleaned can be cleaned without dead angles, so that the cleaning effect of cleaning the equipment to be cleaned is improved.

Description

Dry ice decontamination device

Technical Field

The invention relates to the technical field of electrical equipment decontamination, in particular to a dry ice decontamination device.

Background

With the increasing development of social industrialization, the safe and normal operation of the power system is more and more important, and the pollution flashover fault of the power system brings shutdown and production stoppage to users, even serious accidents, thereby causing great economic loss and social influence. The pollution flashover of the electrical equipment refers to the phenomenon that soluble substances of pollutants attached to the insulating surface of the electrical equipment are gradually dissolved in water under a humid condition, a conductive film is formed on the insulating surface, the insulating level of the insulator is greatly reduced, and strong discharge occurs under the action of an electric field.

In order to reduce the occurrence of pollution flashover or avoid the occurrence of pollution flashover, a pollution cleaning device is often required to be adopted to clean the pollutants attached to the surface of the electrical equipment. Traditional device of decontaminating usually adopts fixed shower nozzle, directly treats the washing of the clear dirty face of equipment of decontaminating, nevertheless because the shower nozzle is fixed for the shower nozzle can only spray cleaning medium to fixed direction or angle, has the not good shortcoming of cleaning performance under this kind of condition.

Disclosure of Invention

Therefore, the dry ice dirt removing device capable of improving the cleaning effect is needed to solve the problem that the conventional dirt removing device is poor in cleaning effect.

A dry ice decontamination device, comprising:

a ground base;

the cleaning assembly comprises a connecting piece, a driving piece and a spray head, the connecting piece is assembled on the grounding base, the driving piece and the spray head are assembled on the connecting piece, the driving piece can drive the spray head to do circumferential motion around the peripheral surface of the equipment to be cleaned relative to the connecting piece and do radial motion close to or far away from the peripheral surface in a plane, and the driving piece can also drive the spray head to do pitching motion relative to the connecting piece along the extending direction of the equipment to be cleaned;

the dry ice conveying assembly is assembled on the grounding base and is communicated with the spray head, and the spray head is configured to spray dry ice conveyed by the dry ice conveying assembly to the equipment to be decontaminated.

In one embodiment, the driving members include a first driving member, a second driving member and a third driving member, the first driving member can drive the nozzle to perform the circumferential movement, the second driving member can drive the nozzle to perform the radial movement, and the third driving member can drive the nozzle to perform the pitching movement.

In one embodiment, the connecting member includes a connecting arm and a rail, the connecting arm is connected to the grounding base, the first driving member and the rail are both connected to the connecting arm, and the second driving member, the third driving member and the nozzle are all disposed on the rail;

the first driving piece can drive the track to move relative to the connecting arm so as to drive the second driving piece, the third driving piece and the spray head to do the circumferential motion.

In one embodiment, the second drive member includes a radial acting shaft, the third drive member includes a pitch acting shaft, the third drive member is connected with the radial acting shaft through the pitch acting shaft, and the spray head is connected with the pitch acting shaft;

wherein, radial effect axle can drive the third driving piece pitch the effect axle with the shower nozzle does jointly radial motion, pitch the effect axle and can drive the shower nozzle is done pitch the motion.

In one embodiment, the first driving member comprises one, and the second driving member, the third driving member and the spray head respectively comprise two;

the first driving piece can drive the two spray heads to do the circumferential motion, the second driving piece can drive each spray head to do the radial motion, and the third driving piece can drive each spray head to do the pitching motion.

In one embodiment, the dry ice trash removal device further comprises an extension tube, the extension tube is connected between the connecting piece and the grounding base, and the extension tube can extend and retract to change the distance between the cleaning assembly and the grounding base.

In one embodiment, the dry ice trash removal device further comprises an angle adjusting assembly, the angle adjusting assembly comprises a first angle adjusting piece and a second angle adjusting piece, the first angle adjusting piece is rotatably arranged between the connecting piece and the grounding base, and the second angle adjusting piece is connected between the first angle adjusting piece and the connecting piece;

wherein the first angle adjusting piece can change the angle of the cleaning assembly in the horizontal plane, and the second angle adjusting piece can change the angle of the cleaning assembly in the vertical plane.

In one embodiment, the dry ice trash removal device further comprises a lifting assembly, the lifting assembly comprises a lifting table and an extensible member, the extensible member is arranged between the lifting table and the grounding base, the cleaning assembly is connected with the lifting table, and the height of the extensible member is adjustable to change the height of the lifting table.

In one embodiment, the dry ice conveying assembly comprises a dry ice providing piece and an insulating transport piece, the dry ice providing piece is connected with the grounding base, one end of the insulating transport piece is connected with the dry ice providing piece, and the other end of the insulating transport piece is communicated with the spray head.

In one embodiment, the dry ice trash removal device further comprises a movable driving vehicle, and the grounding base is arranged on the driving vehicle.

Above-mentioned dry ice device of decontaminating through driving piece drive shower nozzle radial motion, has adjusted the shower nozzle and has treated the distance between the outer peripheral face of the equipment of decontaminating, has satisfied the demand of different washing distances, and carries out circumferential motion and pitch the motion through driving piece drive shower nozzle again, can treat the equipment of decontaminating circumference and pitch the direction and carry out no dead angle washing to the cleaning performance of the equipment of decontaminating has been improved and has been washd. Meanwhile, the temperature difference effect, the large impact force and the micro explosion effect of the sublimation of the dry ice are fully utilized, and the cleaning effect of the cleaning device on the equipment to be cleaned is further improved.

Drawings

Figure 1 is an isometric view of a dry ice decontamination apparatus provided in accordance with one embodiment of the present invention;

figure 2 is an isometric view of a cleaning assembly of the dry ice decontamination device shown in figure 1;

FIG. 3 is a perspective view of the connecting shaft of the driving member and the spray head of the dry ice trash removal device shown in FIG. 1;

fig. 4 is an electrical control circuit diagram of the dry ice trash removal device shown in fig. 1;

FIG. 5 is a schematic diagram of a hydraulic system of the dry ice trash removal device shown in FIG. 1;

fig. 6 is a schematic view of a pneumatic system of the dry ice trash removal device shown in fig. 1.

Reference numerals: 100. a dry ice decontamination device; 10. cleaning the assembly; 11. a drive member; 111. a first driving member; 112. a second driving member; 1121. a connecting box; 113. a third driving member; 1131. a connecting plate; 1132. a pitch-and-roll oscillating cylinder; 12. a connecting member; 121. a track; 122. a connecting arm; 123. a mounting member; 13. a spray head; 131. a feed inlet; 20. a lifting assembly; 21. a lifting platform; 22. a telescoping member; 221. a connecting rod; α: folding angle; 30. a telescopic pipe; 40. an angle adjustment assembly; 41. a first angle adjuster; 42. a second angle adjustment member; 50. a dry ice delivery assembly; 51. a dry ice supplier; 52. an insulated transport member; 60. a power member; 70. a ground base; 80. driving the vehicle; 200. equipment to be decontaminated; 300. an axis; QS1-QS 7: a combination switch; SV: a solenoid valve assembly.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Referring to fig. 1 to 3, the dry ice cleaning device 100 according to an embodiment of the present invention is used for cleaning the equipment 200 to be cleaned, and specifically, the equipment 200 to be cleaned may have a cylindrical shape or a regular prism shape. In other embodiments, the shape of the apparatus 200 to be decontaminated may also be other irregular shapes, and is not limited to the two shapes.

The dry ice decontamination apparatus 100 includes a cleaning assembly 10, a dry ice delivery assembly 50, and a ground base 70. The grounding base 70 serves as an installation basis for the cleaning assembly 10 and the dry ice conveying assembly 50, the dry ice conveying assembly 50 is used for conveying dry ice to the cleaning assembly 10, and the cleaning assembly 10 is used for spraying the dry ice conveyed by the dry ice conveying assembly 50 to the peripheral surface of the equipment 200 to be cleaned so as to clean the equipment 200 to be cleaned.

The cleaning assembly 10 comprises a connecting piece 12, a driving piece 11 and a spray head 13, wherein the connecting piece 12 is connected with the grounding base 70, and the driving piece 11 and the spray head 13 are both arranged on the connecting piece 12. One end of the dry ice conveying assembly 50 is connected with the grounding base 70, and the other end is communicated with the spray head 13, and the spray head 13 is configured to spray dry ice conveyed by the dry ice conveying assembly 50 to the equipment to be decontaminated 200.

When the cleaning operation is performed, the driving member 11 can drive the spray head 13 to make a radial movement close to or away from the outer peripheral surface in a plane, so that the distance from the spray head 13 to the outer peripheral surface of the device 200 to be cleaned meets the requirement. The driving member 11 can also drive the spraying head 13 to move circumferentially around the outer circumferential surface of the apparatus 200 to be decontaminated and to move upward and downward relative to the connecting member 12 along the extending direction (the direction of the central axis 300 in the figure) of the apparatus 200 to be decontaminated, so as to clean the apparatus 200 to be decontaminated circumferentially and in the upward and downward directions. The arrows in fig. 1 show the direction of pitch movement, the arrows in fig. 2 show the direction of circumferential movement, and the arrows in fig. 3 show the direction of radial movement. The same nozzle 13 can be moved in the above three directions simultaneously or in one of them separately.

Thus, the driving piece 11 drives the spray head 13 to move radially, the distance between the spray head 13 and the outer peripheral surface of the equipment 200 to be cleaned is adjusted, and the requirements of different cleaning distances are met. And the driving piece 11 drives the spray head 13 to move circumferentially and tilt, so that the device 200 to be cleaned can be cleaned circumferentially and in the tilt direction without dead angles, and the cleaning effect of cleaning the device 200 to be cleaned is improved. Meanwhile, a dry ice decontamination technology is introduced (the dry ice decontamination technology is that liquid carbon dioxide is made into dry ice particles or dry ice cubes through a dry ice maker, the dry ice particles or the dry ice cubes are ground into fine powder and then are mixed with compressed air to be sprayed to the surface of the equipment 200 to be decontaminated through a spraying cleaning device, impact force generated by high-speed movement of the solid dry ice particles is utilized, and scaling, oil stain and residual impurities on the surface of the equipment 200 to be decontaminated are rapidly stripped and removed by combining low temperature of the dry ice and thermal expansion generated by sublimation, so that the temperature difference effect, large impact force and micro explosion effect of sublimation of the dry ice are fully utilized to decontaminate the equipment 200 to be decontaminated, and the cleaning effect of the decontamination device on the equipment 200.

It should be noted that, when the apparatus 200 to be cleaned is cylindrical or regular prism-shaped, the center of the circumferential motion is located on the axis 300 of the cylinder or regular prism, the radial motion is a motion approaching or departing from the outer surface of the cylinder or regular prism-shaped in a plane, and the tilt motion is a rotation motion of the spray head 13 changing the size of the included angle between the plane where the spray head 13 is located and the circumferential motion plane.

In one embodiment, as shown in fig. 2 and 3, the driving members 11 include three driving members, namely a first driving member 111, a second driving member 112 and a third driving member 113, the first driving member 111 can drive the spray head 13 to perform the circumferential movement, the second driving member 112 can drive the spray head 13 to perform the radial movement, and the third driving member 113 can drive the spray head 13 to perform the pitch movement.

It should be noted that, since the cleaning assembly 10 is to enter a high electric field region during a live operation, the exterior of the nozzle 13 is covered by a metal shielding tube structure to reduce the electric field strength at various points on the surface, thereby preventing corona discharge and damage to the elements of the nozzle 13.

In one embodiment, the connecting member 12 includes a connecting arm 122 and a rail 121, the first driving member 111 and the rail 121 are connected to one end of the connecting arm 122, the other end of the connecting arm 122 is mounted on the grounding base 70, and the second driving member 112 and the third driving member 113 are disposed on the rail 121. The first driving member 111 drives the rail 121 to move relative to the connecting arm 122, so as to drive the second driving member 112, the third driving member 113 and the nozzle 13 to reciprocate along the circumferential direction on the plane of the rail 121.

Specifically, as shown in fig. 2 and 3, the first driving member 111 may be a semi-circumferential pneumatic motor, the second driving member 112 may be a radial pneumatic motor, and the third driving member 113 may be a pitch/tilt swing member. The pneumatic motor and the pitch and yaw assemblies provide mechanical force to move the spray head 13.

In one embodiment, a gear structure is disposed between the first driving member 111 and the rail 121, and the rail 121 is driven to move along its own track by the gear structure, and drives the second driving member 112, the third driving member 113 and the nozzle 13 to move circumferentially together.

The second drive member 112 includes a radial acting shaft (not shown), and the third drive member 113 includes a pitch acting shaft (not shown), which is connected to the radial acting shaft, and the head 13 is connected to the pitch acting shaft. The radial acting shaft drives the pitching acting shaft to linearly move together with the head 13 in the radial direction, and the pitching acting shaft drives the head 13 to rotationally move in the pitching direction.

The second drive 112 further includes a connection box 1121, the connection box 1121 is connected to the rail 121, and the radial acting shaft and the pitch acting shaft are both built in the connection box 1121. The third driving member 113 includes a connecting plate 1131 and a pitching oscillating cylinder 1132, and the connecting plate 1131 is fixedly connected to the pitching oscillating cylinder 1132. The pitching oscillating cylinder 1132 provides power for pitching oscillation of the nozzle 13, and a pitching action shaft is positioned at the front end of the radial action shaft; the second drive member 112 is connected to the pitch-action shaft by a radial-action shaft, the pitch-action shaft being rotatable relative to the radial-action shaft.

Specifically, when the cleaning assembly 10 needs to perform radial movement, the second driving member 112 is activated, and mechanical force is transmitted through the radial acting shaft, and the mechanical force pushes the pitching acting shaft to drive the third driving member 113 and the nozzle 13 to simultaneously perform linear movement forward or backward close to or far away from the peripheral surface of the to-be-cleaned device 200, so as to meet the requirements of the to-be-cleaned devices 200 with different sizes and cleaning distances.

When the cleaning assembly 10 needs to perform circumferential movement, the first driving member 111 transmits acting force to the track 121 through the gear, the track 121 is driven by the first driving member 111 to perform reciprocating circumferential movement along the track, and the second driving member 112, the third driving member 113 and the nozzle 13 are all installed on the track 121, so that the nozzle 13 is driven to perform circumferential spraying and cleaning around the cleaning surface of the device 200 to be cleaned while the track 121 moves.

When the cleaning assembly 10 needs to perform up-down-up movement, the up-down swinging cylinder 1132 provides an acting force to rotate the up-down acting shaft on the radial acting shaft, so as to drive the spraying head 13 to rotate, thereby adjusting the spraying head 13 to move up-down along the extending direction of the shaft center 200, changing the angle between the spraying head 13 and the plane of the rail 121, and completing the cleaning of the upper surface and the lower surface of the device 200 to be cleaned by the cleaning assembly 10.

The circular motion mentioned here can be realized by directly arranging the rail 121 in a ring shape, that is, in this arrangement, the rail 121 can also be arranged in other shapes, and the rail 121 and the spraying head 13 are driven by arranging a connecting rod or other structures, as long as the effect that the spraying head 13 can surround the device to be cleaned 200 or clean a certain part of the outer peripheral surface can be achieved, and the circular motion is not limited to the ring shape.

Further, as shown in fig. 2, there may be one first driving member 111, two second driving members 112, two third driving members 113 and two spray heads 13, respectively, one first driving member 111 may drive the two spray heads 13 to perform the circumferential movement, each second driving member 112 may drive each spray head 13 to perform the radial movement, and each third driving member 113 may drive each spray head 13 to perform the tilting movement.

Specifically, as shown in fig. 2, when the rail 121 rotates counterclockwise, the left nozzle 13 is driven to rotate until contacting the first driving member 111, and then the rotation in the direction reaches the limit, at this time, the rotation direction can be adjusted to rotate clockwise, so that the right nozzle 13 moves close to the first driving member 111, and the left nozzle 13 moves away from the first driving member 111, and thus, the dry ice spraying operation of all ranges of the nozzle 13 can be completed.

The dry ice trash removal device 100 of the present embodiment further includes a lifting assembly 20, an extension tube 30, an angle adjusting assembly 40; telescoping tube 30 is disposed between cleaning assembly 10 and grounded base 70, lifting assembly 20 is disposed between telescoping tube 30 and grounded base 70, and angle adjustment assembly 40 is disposed between telescoping tube 30 and lifting assembly 20. Bellows 30 is used to change the spacing between cleaning assembly 10 and grounded base 70, lifting assembly 20 is used to change the height between cleaning assembly 10 and grounded base 70, and angle adjustment assembly 40 is used to change the angle of cleaning assembly 10 in the horizontal plane and the angle in the vertical plane. Cleaning assembly 10, lifting assembly 20, telescoping tube 30, angle adjustment assembly 40, dry ice delivery assembly 50 and ground base 70 are connected together to form dry ice decontamination apparatus 100.

In one example, the dry ice dirt removing device 100 further comprises a driving vehicle 80, the driving vehicle 80 is movable, the grounding base 70 is fixed on the driving vehicle 80, the lifting assembly 20 and the dry ice conveying assembly 50 are both installed on the grounding base 70, and the grounding base 70 can be safely grounded and can drive the whole dry ice dirt removing device 100 to move under the driving of the driving vehicle 80.

Further, the lifting assembly 20 includes a lifting platform 21 and an expansion member 22, the expansion member 22 is disposed between the lifting platform 21 and the grounding base 70, the lifting platform 21 is disposed between the connecting member 12 and the grounding base 70, and the height of the expansion member 22 is variable and drives the lifting platform 22 to rise or fall.

Specifically, the lifting assembly 20 may be disposed between the connecting arm 122 and the grounding base 70, one end of the lifting platform 21 is connected to the connecting arm 122, one end of the lifting platform is connected to one end of the telescopic member 22, and the other end of the telescopic member 22 is connected to the grounding base 70. The height of the cleaning assembly 10 and the spray head 13 thereof can be changed by lifting or lowering the lifting platform 21 through the telescopic member 22. The telescopic member 22 includes a plurality of connecting rods 221, and every two connecting rods 221 are connected in a scissors-like manner and form a certain folding angle α. When the operation is not started, the folding angle alpha is basically close to 0 degrees, and the connecting rods 221 are folded and stored together; when cleaning operation is needed, the lifting height of the lifting platform 21 is determined according to the height of the equipment 200 to be cleaned, so that the folding angle alpha is continuously increased until the lifting platform 21 reaches the preset height and the spray head 13 reaches the preset height. In the cleaning process, if the height of the lifting platform 21 needs to be changed, the telescopic part 22 can be adjusted at any time so as to meet the cleaning requirements of the equipment 200 to be cleaned with different heights.

It should be noted that the shape and movement of the telescopic member 22 are not limited to the above structure, as long as the lifting platform 21 can be driven to move up and down at any time and can be stable, for example, a form of a strong spring and a rubber member is adopted, and this embodiment is only one of the above descriptions.

In one embodiment, as shown in FIG. 1, extension tube 30 is connected at one end to coupling member 12 of cleaning assembly 10 and at the other end to a grounded base 70. And telescopic tube 30 is telescopic, and the length of telescopic tube 30 is changed according to different system working voltage levels of equipment 200 to be cleaned, so as to change the distance between cleaning assembly 10 and grounding base 70.

Specifically, the telescopic pipe 30 is a fully insulated hydraulic telescopic pipe, so as to ensure that the maximum electrical insulation strength between the grounding base 70 and the cleaning assembly 10 meets the insulation requirement of the working voltage of the power transmission system; the length of the telescopic tube 30 is allowed to be adjusted between 2 m and 6m, and the requirement of potential isolation between the cleaning surface of the equipment 200 to be cleaned and the grounding base 70 is met.

In one embodiment, dry ice trash removal device 100 further comprises an angle adjustment assembly 40, wherein angle adjustment assembly 40 is disposed between telescoping tube 30 and lifting assembly 20. Angle adjusting assembly 40 includes a first angle adjusting member 41 and a second angle adjusting member 42, wherein first angle adjusting member 41 is rotatably disposed between lifting assembly 20 and telescoping tube 30, and second angle adjusting member 42 is disposed between telescoping tube 30 and first angle adjusting member 41. The first angle adjusting member 41 may change a horizontal angle of the cleaning assembly 10 with respect to the ground base 70, and the second angle adjusting member 42 may change a vertical angle of the cleaning assembly 10 with respect to the ground base 70.

Specifically, the first angle adjusting member 41 may be a rotary table, and the second angle adjusting member 42 may be a hydraulic jack.

The rotating table can rotate 360 degrees along the plane of the rotating table and drive the telescopic pipe 30 to rotate, so that the angle of the cleaning assembly 10 at the horizontal position is the same as that of the equipment 200 to be cleaned; the hydraulic jack is arranged on the rotating platform and can provide hydraulic power to drive the telescopic pipe 30 to do vertical elevation motion, the elevation can reach 60 degrees at most, and therefore the cleaning of different upper and lower parts of the equipment 200 to be cleaned at different angles can be met.

In one embodiment, the dry ice conveying assembly 50 includes a dry ice supply member 51 and an insulated transport member 52, one end of the insulated transport member 52 is connected to the cleaning assembly 10, the other end is connected to the spray head 13, and the dry ice supply member 51 is mounted on the grounding base 70.

Specifically, insulating transport 52 passes through feed inlet 131 and shower nozzle 13 lug connection, and the dry ice granule in providing the dry ice 51 transports shower nozzle 13 department and sprays, and insulating transport 52 can be the soft PU pipe of high electrical insulation to when conveniently wasing subassembly 10 motion, insulating transport 52 can follow random deformation and do not influence its motion and the transportation of dry ice, is used for keeping apart the high potential on treating the equipment 200 surface of decontaminating simultaneously, realizes the cleaning operation under the electrified condition.

Specifically, the dry ice trash removal device 100 further includes a power member 60, which includes a first power member and a second power member, the first power member is connected to the dry ice conveying assembly 50 and provides a pneumatic driving force, and the second power member is connected to the lifting assembly 20 and provides a hydraulic driving force.

Further, as shown in fig. 4, the first power member is a pneumatic pump, the second power member is a hydraulic system, the pneumatic pump is connected with the dry ice providing member 51 to provide a pneumatic driving force, and the hydraulic system is connected with the telescopic member 22 and the second angle adjusting member 42 to provide a hydraulic driving force.

The cleaning process of the live working dry ice dirt removing device provided by the embodiment is as follows:

(1) determining the lifting height of the lifting platform 21 according to the height of the equipment 200 to be cleaned, and adjusting the telescopic piece 22 to enable the lifting platform 21 to reach a preset position;

(2) the cleaning assembly 10 is adjusted through the angle adjusting assembly 40, so that the cleaning assembly 10 enters the cleaning surface of the equipment 200 to be cleaned;

(3) depending on the insulation size of the equipment 200 to be decontaminated. Starting the second driving member 112 to adjust the nozzle 13 to the designated cleaning position;

(4) starting the first driving piece 111 to drive the spray head 13 to move circumferentially along the cleaning surface of the equipment 200 to be cleaned, wherein the observation motion track meets the requirement of equidistant motion with the axis 300 of the equipment 200 to be cleaned as the center;

(5) starting the dry ice decontamination device 100, adjusting the driving piece 11 to reach a rated working state, and opening the spray head 13 to start cleaning;

(6) the first driving part 111 drives the spray head 13 to move along the circumferential direction once for cleaning, then the third driving part 113 enables the spray head 13 to bend downwards for 30 degrees, and the third driving part 113 drives the spray head 13 to move along the circumferential direction once again for cleaning;

(7) controlling the lifting platform 21 to move downwards by the height of one umbrella skirt, repeating the sixteenth step, then enabling the spray head 13 to face upwards by 30 degrees by the third driving part 113, and driving the spray head 13 to move circumferentially once again by the first driving part 111;

(8) and repeating the work according to the second step until all the sheds are cleaned, closing the first power part, withdrawing the telescopic pipe 30, and lowering the lifting platform 21 to finish the electrified decontamination operation.

The system circuit is also internally provided with a solenoid valve assembly SV, the solenoid valve assembly SV comprises OEV1, OEV2, OEV3, AEV1, AEV2, AEV3, OEV1, OEV2 and OEV3 control hydraulic systems, and AEV1, AEV2 and AEV3 control pneumatic control devices.

As shown in fig. 4 to 6, when the combination switch QS1 is closed, the pneumatic control device, the dry ice cleaning device 100 and the hydraulic system motor are electrified; the direct current power supply converts 220V alternating current into 24V direct current to control the stations of the electromagnetic valve assemblies SV of the hydraulic system and the pneumatic system; the combination switches QS 2-QS 7 are switched on to control the corresponding solenoid valve assembly SV to act, and the control is as follows:

(1) when the coil of the electromagnetic valve OEV1 is powered on or powered off, hydraulic oil enters the control unit oil cylinder of the lifting assembly 20 of the hydraulic system, and the second power part enables the lifting assembly 20 to ascend or descend;

(2) when the coil of the electromagnetic valve OEV3 is powered on or powered off, hydraulic oil enters the control unit of the first angle adjusting part 41 to drive the first angle adjusting part 41 to rotate clockwise or anticlockwise along the table top plane of the first angle adjusting part 41 by 360 degrees;

(3) when the coil of the electromagnetic valve OEV2 is powered on or powered off, hydraulic oil enters the second angle adjusting part 42 oil cylinder to drive the telescopic pipe 30 to do elevation motion at a certain angle along the vertical plane of the self table-board of the lifting table 21;

(4) the coil of the electromagnetic valve AEV1 is powered on or powered off, gas enters the pitching swinging cylinder 1132, and the spraying angle of the spraying nozzle 13 is adjusted to be obliquely upward or obliquely downward, namely the angle between the spraying nozzle 13 and the plane of the rail 121 is adjusted;

(5) when the coil of the electromagnetic valve AEV3 is powered on or off, the gas enters the first driving piece 111, the power is transmitted to the gear fixed on the track 121 through the chain wheel, the track 121 is driven to rotate around the axis 300 of the equipment to be cleaned 200, and the spray head 13 rotates clockwise or anticlockwise around the axis 300 of the equipment to be cleaned 200;

(6) by energizing or de-energizing the coil of the solenoid valve AEV2, gas enters the second drive 112, adjusting the radial distance between the spray head 13 and the surface of the equipment 200 to be decontaminated.

The dry ice dirt removing device 100 in the above embodiment of the invention has the following beneficial effects:

(1) the second driving piece 112 can drive the spray head 13 to move radially, so that the distance between the spray head 13 and the surface of the equipment 200 to be cleaned is adjusted, and the requirements of different sizes of the equipment 200 to be cleaned and different cleaning distances are met;

(2) the first driving piece 111 and the third driving piece 113 drive the spray head 13 to perform circumferential movement and pitching movement, so that the circumferential direction, the upper surface and the lower surface of the equipment to be cleaned 200 can be cleaned without dead angles, and the cleaning effect is improved;

(3) because the dry ice cleaning assembly 10 enters the high-voltage place, the structures (the spray head 13, the extension tube 30 and the like) all adopt the insulating assemblies, a large amount of power failure time is saved, and meanwhile, the dry ice cleaning assembly is different from a water washing mode, the problem of electrical safety of adjacent electrical equipment cannot be caused when the dry ice is cleaned, electrified cleaning is realized, labor force and other production equipment do not need to be added, and the safe and normal operation of a power system is ensured;

(4) through the height adjustment of the lifting assembly 20 and the length adjustment of the extension tube 30, the automatic cleaning operation is manually realized on the ground, and the efficient and safe live working process is realized;

(5) through the adjustment of the angle adjusting assembly 40, the cleaning assembly 10 can be accurately aligned with the unit 200 to be cleaned, so that an accurate position is provided for subsequent cleaning, and the cleaning effect is indirectly improved;

(6) in the aspect of environmental safety, CO2 is a nontoxic substance, directly volatilizes in the cleaning process, avoids secondary pollution and simultaneously meets the requirement of environmental protection.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A dry ice decontamination device, comprising:

a ground base;

2. A dry ice decontamination device as claimed in claim 1, wherein the drive member comprises a first drive member, a second drive member and a third drive member, the first drive member being capable of driving the nozzle to move circumferentially, the second drive member being capable of driving the nozzle to move radially, and the third drive member being capable of driving the nozzle to move up and down.

3. A dry ice decontamination device as claimed in claim 2, wherein the connecting member comprises a connecting arm and a track, the connecting arm is connected with the ground base, the first driving member and the track are both connected with the connecting arm, and the second driving member, the third driving member and the spray head are all disposed on the track;

4. A dry ice decontamination device as claimed in claim 2, wherein the second drive member comprises a radial acting shaft and the third drive member comprises a pitch acting shaft, the third drive member being connected to the radial acting shaft via the pitch acting shaft, the spray head being connected to the pitch acting shaft;

wherein, radial effect axle can drive the third driving piece with the shower nozzle does jointly radial motion, it can drive to pitch the effect axle the shower nozzle is done pitch motion.

5. A dry ice decontamination apparatus as claimed in claim 2, wherein the first drive member comprises one, and the second drive member, the third drive member and the spray head comprise two, respectively;

6. A dry ice decontamination device as claimed in claim 1, further comprising a telescoping tube connected between the connector and the ground base, the telescoping tube being capable of telescoping to change the spacing between the cleaning assembly and the ground base.

7. A dry ice decontamination device as claimed in claim 1, further comprising an angle adjustment assembly, the angle adjustment assembly comprising a first angle adjustment member and a second angle adjustment member, the first angle adjustment member being rotatably disposed between the connecting member and the ground base, the second angle adjustment member being connected between the first angle adjustment member and the connecting member;

8. A dry ice decontamination device as claimed in claim 1, further comprising a lifting assembly, the lifting assembly comprising a lifting table and a telescoping member, the telescoping member being disposed between the lifting table and the ground base, the cleaning assembly being connected to the lifting table, the telescoping member being height adjustable to vary the height of the lifting table.

9. A dry ice decontamination device as claimed in claim 1, wherein the dry ice conveying assembly comprises a dry ice supply member and an insulated transport member, the dry ice supply member is connected with the grounding base, one end of the insulated transport member is connected with the dry ice supply member, and the other end is communicated with the spray head.

10. A dry ice decontamination device as claimed in claim 1, further comprising a movable drive cart on which the ground base is provided.