CN117027908A - Underground construction air purification device - Google Patents

Abstract

The invention belongs to the technical field of underground construction air purification, in particular to an underground construction air purification device, which comprises a box body, wherein the bottom of the box body is connected with a one-way air inlet pipe, the one-way air inlet pipe is connected with a gas collecting disc, the upper end of the box body is connected with an air outlet pipe, the air outlet pipe is connected with an air drying assembly, and the air drying assembly comprises: pipeline, pipeline lower extreme fixed connection outlet duct, a plurality of groups mounting groove of seting up on the pipeline in a staggered way, the mounting bracket of fixed welding in the mounting groove, the fin of welding on the terminal surface under the mounting bracket, and, fixed mounting is on the fin, the refrigeration face laminating fin of refrigeration piece, set up a plurality of groups ventholes on the gas collection dish outer lane, compare with prior art, this device utilizes the principle of cold and hot exchange, not only realizes getting rid of alkaline heat steam in the air, realizes simultaneously drying and the cooling to the air.

Description

Underground construction air purification device

Technical Field

The invention belongs to the technical field of underground construction air purification, and particularly relates to an underground construction air purification device.

Background

Underground engineering refers to underground civil engineering built deep under the ground for developing and utilizing underground space resources, and comprises underground houses and underground structures, underground railways, highway tunnels, underwater tunnels, underground common ditches, street-crossing underground passages and the like. In the construction process of underground engineering, a great amount of dust particles can be generated in the construction operations such as drilling, blasting, slag loading and the likePellets and acid gases (e.g. SO ₂ ) If the air circulation is not smooth, the insufficient fuel combustion caused by the lack of oxygen of the machine is aggravated, and the content of acid gas in the discharged tail gas is increased, so that the mechanical power is reduced, the physical health of operators is damaged, and the service life of the machine is shortened.

The utility model provides an air purifier for underground works construction, the power distribution box comprises a box body, the lower extreme fixed mounting of box has the fan, the fan is through one-way intake pipe and box intercommunication, the upper end fixed intercommunication of box has the outlet duct, fixed mounting has thermoelectric generation piece on the lateral wall of outlet duct, thermoelectric generation piece runs through the lateral wall setting of outlet duct, be equipped with alkaline solution in the box, all be equipped with the electrolysis chamber with the inside intercommunication of box on the lateral wall of box both sides, the upper end fixed intercommunication of electrolysis chamber has the blast pipe, the upper end of blast pipe is higher than alkaline solution's liquid level. The invention can absorb and purify the acid gas in the air through the alkaline solution, ensure the health and safety of underground staff, and prevent the problem of lower purification effect caused by dilution of the alkaline solution through the thermoelectric generation sheet to hydrolyze the water generated by the reaction.

In the scheme, because the acid gas and the alkaline solution in the box body are subjected to chemical reaction, a large amount of heat is generated in the chemical reaction, and a small amount of alkaline solution can form hot steam along with the increase of the temperature in the box body, and the alkaline hot steam mixed in the air can be absorbed by the absorbent cotton along with the flow of the air to the air outlet pipe, and the alkaline solution absorbed in the absorbent cotton is thrown into the drainage cavity under the action of centrifugal force, so that secondary pollution to the underground construction environment can be prevented, however, because the temperature in the box body is high, the alkaline solution still can generate alkaline hot steam due to high temperature, and the alkaline hot steam is directly discharged outdoors along with the air, the absorbent cotton can only lighten the pollution of the construction environment and cannot completely avoid the environmental pollution; to this end, the present invention provides an air cleaning apparatus for underground construction.

Disclosure of Invention

In order to overcome the deficiencies of the prior art, at least one technical problem presented in the background art is solved.

The technical scheme adopted for solving the technical problems is as follows: the invention relates to an underground construction air purification device, which comprises a box body, wherein the bottom of the box body is connected with a one-way air inlet pipe, the one-way air inlet pipe is connected with a gas collecting disc, the upper end of the box body is connected with an air outlet pipe, the air outlet pipe is connected with an air drying assembly, and the air drying assembly comprises: the air-collecting disc comprises a pipeline, a plurality of groups of mounting grooves formed in the pipeline in a staggered manner, a mounting frame fixedly welded in the mounting grooves, cooling fins welded on the lower end face of the mounting frame, and cooling fins fixedly mounted on the cooling fins, wherein the cooling faces of the cooling fins are attached to the cooling fins, and a plurality of groups of air outlet holes are formed in the outer ring of the air-collecting disc;

compared with the prior art, the device utilizes the principle of cold and heat exchange, not only realizes the removal of alkaline hot steam in the air, but also realizes the drying and cooling of the air.

Preferably, the air drying assembly further comprises: the clearance mechanism, clearance mechanism is used for the comdenstion water on the clearance fin, and clearance mechanism includes: the driving pipe is connected in the pipeline in a rotating way, a plurality of groups of brush handles are welded on the driving pipe in a staggered way, and water-absorbing cotton blocks are fixedly arranged on the brush handles and are connected with the lower end face of the refrigerating sheet in a sliding way;

the driving tube drives the brush handle to rotate together with the water-absorbing cotton block, the water-absorbing cotton block slides along the radiating fin, and in the sliding process, the alkaline solution on the radiating fin is absorbed by the water-absorbing cotton block, so that the alkaline solution on the radiating fin is cleaned, and the condensing effect of the radiating fin on the alkaline hot steam is ensured.

Preferably, the handle comprises: the shell is welded on the driving pipe, the shell is communicated with the inner cavity of the driving pipe, a Z-shaped frame is movably arranged in the shell, a sliding rod is fixedly connected with one end of the Z-shaped frame, a first spring is sleeved on the sliding rod, a pressure-bearing head is fixedly welded at one end of the sliding rod, a water-absorbing cotton block is positioned at the upper port part of the shell, one end of the water-absorbing cotton block is fixedly connected with the other end of the Z-shaped frame, the other end of the water-absorbing cotton block is fixedly connected with the inner wall of the shell, the sliding rod is movably inserted into the shell, a plurality of groups of crescent frames are arranged in the shell in a staggered manner, and the pressure-bearing head is in sliding connection with the crescent frames;

the driving tube continuously rotates, and the water-absorbing cotton blocks are extruded after absorbing the alkaline solution every time, so that the alkaline solution is prevented from gathering on the water-absorbing cotton blocks, and the cleaning effect of the water-absorbing cotton blocks on the alkaline solution on the radiating fins is ensured.

Preferably, set up the mediation mechanism in the gas collection dish, the mediation mechanism is used for dredging the venthole, and the mediation mechanism includes: the support plate is fixedly arranged in the box body, the electric push rod is fixedly arranged on the support plate, the movable rod is screwed on the end part of the electric push rod, a plurality of groups of support rods are arranged at the lower end of the movable rod at equal angles, the pin shafts are fixedly welded at the end parts of the support rods, the movable plate is provided with inclined sliding grooves, the pin shafts slide to be connected with the inclined sliding grooves, four groups of dredging pieces are arranged at one side of the movable plate at equal intervals, the guide plate is fixedly arranged in the gas collecting disc, the movable rod is connected with the gas collecting disc in an inserting mode, and the dredging pieces are connected with the gas outlet holes in an inserting mode;

the dredging piece is inserted into the air outlet hole to push out the alkaline scale accumulated in the air outlet hole, so that the air outlet hole is cleaned, the blocking of the alkaline scale to the air outlet hole is relieved, and meanwhile, the air outlet hole is cleaned by workers conveniently.

Preferably, the dredging member includes: the device comprises a dredging shaft, a movable plate, a shell, two groups of guide posts, a plurality of groups of scrapers, second springs and two groups of convex shafts, wherein the shell is sleeved on the dredging shaft;

through the setting of mediation piece, under the condition that the realization was cleared up venthole incrustation scale, do not influence the air and spout into alkaline solution to will greatly alleviate the pressure that the fan received, and then guarantee the life of fan.

The beneficial effects of the invention are as follows:

1. the air containing alkaline hot steam enters into the pipeline through the air outlet pipe, at this moment, the refrigerating sheet is started, the pipeline and the mounting frame are made of heat insulation materials, the refrigerating surface of the refrigerating sheet is used for rapidly reducing the upper temperature of the radiating sheet, so that the alkaline hot steam entering into the pipeline is necessarily contacted with the radiating sheet, the alkaline hot steam is condensed on the radiating sheet to form alkaline solution through cold and hot contact, and because a plurality of groups of radiating sheets are staggered and distributed in the pipeline step by step, the alkaline hot steam is contacted with the radiating sheet more fully, the temperature is reduced fully, and the alkaline hot steam in the air is completely removed.

2. After the alkaline solution on the radiating fins is cleaned, the heat radiating fins are staggered by the water absorbing cotton block, along with the continuous rotation of the water absorbing cotton block and the brush handle, the pressure bearing head on the brush handle is extruded by the crescent frame, so that the pressure bearing head pushes the slide rod to move together with the Z-shaped frame, the pressure bearing head compresses the first spring, the other end of the Z-shaped frame which moves simultaneously extrudes the water absorbing cotton block, the alkaline solution on the water absorbing cotton block is extruded, the extruded alkaline solution flows into the driving tube along the shell, finally flows back into the box body through the driving tube until the pressure bearing head staggers the crescent frame, and the water absorbing cotton block is restored to the original shape under the reactive force of the first spring, so that the water absorbing cotton block is extruded after absorbing the alkaline solution each time along with the continuous rotation of the driving tube, the alkaline solution is prevented from being gathered on the water absorbing cotton block, and the cleaning effect of the alkaline solution on the radiating fins is ensured.

3. In the process that the dredging piece is inserted into the air outlet, the dredging shaft and the four groups of scrapers are inserted into the air outlet along the guide holes, most scale in the air outlet is ejected out, air is ejected out through gaps between the scrapers, the dredging shaft pushes the shell to slide along the guide post towards the guide plate through the second spring until the guide plate blocks the shell and cannot move, at the moment, the dredging shaft compresses the second spring, the dredging shaft drives the two groups of convex shafts to slide along the two groups of spiral sliding grooves, the dredging shaft and the four groups of scrapers rotate under the guidance of the spiral sliding grooves, the four groups of scrapers rotate to rub the inner wall of the air outlet, and therefore scale on the inner wall of the air outlet is cleaned, and through the setting of the dredging piece, air is not affected to be ejected into alkaline solution under the condition that scale on the air outlet is cleaned, pressure born by a fan is greatly reduced, and the service life of the fan is guaranteed.

Drawings

The invention is further described below with reference to the accompanying drawings.

FIG. 1 is a schematic diagram of the structure of the present invention.

FIG. 2 is a schematic cross-sectional view of the present invention.

Fig. 3 is a schematic view of a partial assembly of an air dryer assembly of the present invention.

Fig. 4 is a schematic cross-sectional view of an air drying assembly of the present invention.

FIG. 5 is a schematic diagram of a combination of a sectioned drive tube, crescent frame, sectioned handle, absorbent cotton block of the present invention.

Fig. 6 is an enlarged view at a in fig. 5.

FIG. 7 is a schematic sectional view of a combination of a gas collecting tray and a dredging mechanism according to the present invention.

FIG. 8 is a schematic view of a combination of a movable plate, a cross-sectional dredging member and a guide plate according to the present invention.

FIG. 9 is a schematic view of a combination of a pull shaft, housing, scraper, and male shaft according to the present invention.

In the figure: 1. a case; 2. a one-way air inlet pipe; 3. a gas collecting disc; 31. an air outlet hole; 4. an air outlet pipe; 5. an air drying assembly; 6. a dredging mechanism; 7. an electrolytic tube; 8. an electrolytic rod; 9. thermoelectric generation piece; 501. a pipe; 5011. a crescent frame; 502. a mounting groove; 503. a mounting frame; 504. a heat sink; 505. a cooling sheet; 506. a cleaning mechanism; 5061. a driving tube; 5062. a brush handle; 5063. a water-absorbing cotton block; 621. a housing; 622. a Z-shaped frame; 623. a slide bar; 624. a first spring; 625. a pressure bearing head; 601. a support plate; 602. an electric push rod; 603. a movable rod; 604. a support rod; 605. a pin shaft; 606. a movable plate; 6061. an inclined chute; 607. a dredging piece; 608. a guide plate; 6081. a guide hole; 6071. dredging the shaft; 6072. a housing; 721. a spiral chute; 6073. a guide post; 6074. a second spring; 6075. a scraper; 6076. a protruding shaft.

Detailed Description

The invention is further described in connection with the following detailed description in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the invention easy to understand.

Example 1

As shown in fig. 1 to 3, the air purifying device for underground construction according to the embodiment of the present invention includes a box 1, a unidirectional air inlet pipe 2 is connected to the bottom of the box 1, the unidirectional air inlet pipe 2 is connected to a gas collecting tray 3, an air outlet pipe 4 is connected to the upper end of the box 1, the air outlet pipe 4 is connected to an air drying assembly 5, and the air drying assembly 5 includes: pipeline 501, pipeline 501 lower extreme fixed connection outlet duct 4, a plurality of groups of mounting groove 502 of seting up on pipeline 501 in the stagger, the mounting bracket 503 of fixed welding in mounting groove 502, the fin 504 of welding on the terminal surface under the mounting bracket 503 to and, the refrigeration piece 505 of fixed mounting on fin 504, the refrigeration face laminating fin 504 of refrigeration piece 505 sets up a plurality of groups venthole 31 on the gas collection dish 3 outer lane.

Specifically, the alkaline solution is contained in the box body 1, two groups of electrolysis tubes 7 are symmetrically arranged at two sides of the box body 1, one group of electrolysis tubes 7 is connected with a hydrogen storage device, an electrolysis rod 8 is arranged at the bottom of the electrolysis tube 7, the two groups of electrolysis rods 8 are divided into positive and negative electrodes, a thermoelectric generation sheet 9 is arranged in the air outlet pipe 4, the thermoelectric generation sheet 9 is electrically connected with the electrolysis rod 8, larger temperature difference is generated at two ends of the thermoelectric generation sheet 9, heat energy generated by reaction is converted into electric energy, water is electrolyzed through the positive and negative electrode electrolysis rod 8 to generate hydrogen and oxygen, after the water is electrolyzed, the amount of the solvent is reduced, the concentration of NaOH substances in the alkaline solution is increased to ensure the air purification effect, the unidirectional air inlet pipe 2 is connected with a fan, the related structure in the air purifier for underground engineering construction is adopted by the related mechanism disclosed by the publication No. CN110542159A, the unidirectional air inlet pipe 2 pumps the surrounding air into the air collecting tray 3 through the fan, then the air is sprayed into the alkaline solution through the plurality of groups of air outlet holes 31, the alkaline solution reacts with the acid gas in the air, so that the acid gas in the air is removed, the air is purified, the purified air contains alkaline hot steam, the air containing the alkaline hot steam enters the pipeline 501 through the air outlet pipe 4, at the moment, the refrigerating plate 505 is started, the pipeline 501 and the mounting frame 503 are both made of heat insulation materials, the refrigerating surface of the refrigerating plate 505 rapidly reduces the temperature on the radiating plate 504, the alkaline hot steam entering the pipeline 501 inevitably contacts the radiating plate 504, the alkaline hot steam is condensed on the radiating plate 504 into the alkaline solution through the cold-hot contact, and the plurality of groups of radiating plates 504 are distributed in the pipeline 501 in a staggered and step-by-step manner, so that the alkaline hot steam can be contacted with the radiating plate 504 more fully, the device is fully cooled, so that alkaline hot steam in the air is completely removed, and compared with the prior art, the device not only removes the alkaline hot steam in the air, but also dries and cools the air by utilizing the principle of cold-heat exchange.

As shown in fig. 4 to 6, the air drying assembly 5 further includes: cleaning mechanism 506, cleaning mechanism 506 is used for the comdenstion water on the clearance fin 504, and cleaning mechanism 506 includes: the driving tube 5061, the driving tube 5061 is screwed in the pipeline 501, a plurality of groups of brush handles 5062 are welded on the driving tube 5061 in a staggered way, and a water-absorbing cotton block 5063 is fixedly arranged on the brush handles 5062, and the water-absorbing cotton block 5063 is connected with the lower end face of the refrigerating sheet 505 in a sliding way.

Specifically, as the alkaline solution on the heat sink 504 is more and more condensed with the alkaline hot vapor, the heat sink 504 is fully covered with the alkaline solution, and the alkaline solution is not cleaned timely, so that the effect of the heat sink 504 on the condensation of the alkaline hot vapor is affected, when air is introduced into the pipeline 501, the driving pipe 5061 is driven by a motor to rotate, the driving pipe 5061 drives the brush handle 5062 to rotate together with the absorbent cotton 5063, the rotating absorbent cotton 5063 passes through the heat sink 504, the absorbent cotton 5063 slides against the heat sink 504, and the absorbent cotton 5063 absorbs the alkaline solution on the heat sink 504 in the sliding process, so that the alkaline solution on the heat sink 504 is cleaned, and the condensation effect of the heat sink 504 on the alkaline hot vapor is ensured.

As shown in fig. 5 and 6, handle 5062 includes: the shell 621, the shell 621 welds on drive tube 5061, and shell 621 and drive tube 5061 inner chamber intercommunication, movable mounting is in the Z type frame 622 in shell 621, the slide bar 623 of fixed connection Z type frame 622 one end, the first spring 624 of cover on slide bar 623, and, the pressure-bearing head 625 of fixed welding in slide bar 623 one end, the cotton piece 5063 that absorbs water is located the upper port portion of shell 621, the cotton piece 5063 one end fixed connection Z type frame 622 other end absorbs water, the cotton piece 5063 other end fixed connection shell 621's inner wall absorbs water, slide bar 623 activity grafting shell 621, crisscross a plurality of sets of crescent moon frame 5011 of setting in the shell 621, pressure-bearing head 625 sliding connection crescent moon frame 5011.

Specifically, the above-mentioned absorbent cotton block 5063 continuously absorbs the alkaline solution, the absorbent cotton block 5063 absorbs the alkaline solution to be saturated, if the alkaline solution on the absorbent cotton block 5063 is not squeezed, the effect of the absorbent cotton block 5063 on cleaning the alkaline solution on the cooling fin 504 will be affected, therefore, after the alkaline solution on the cooling fin 504 is cleaned by the rotating absorbent cotton block 5063, the heat dissipation fin 504 will be staggered by the absorbent cotton block 5063, as the absorbent cotton block 5063 and the brush holder 5062 continuously rotate, the pressure-bearing head 625 on the brush holder 5062 will be pressed by the crescent bracket 5011, the pressure-bearing head 625 pushes the slide rod 623 and the Z-shaped bracket 622 to move together, and the pressure-bearing head 625 compresses the first spring 624, meanwhile, the other end of the moving Z-shaped bracket 622 will squeeze the absorbent cotton block 5063, the alkaline solution on the absorbent cotton block 5063 is extruded, the extruded alkaline solution flows into the driving tube 5061 along the casing 621, and finally flows back into the box body 1 through the driving tube 5061 until the pressure-bearing head 625 staggers the cooling fin 504, as the absorbent cotton block 5063 is continuously rotated along with the first spring bracket 624, the elastic force of the elastic block is applied to the heat dissipation block 5063, and the alkaline solution is prevented from being absorbed on the heat dissipation block 5063 each time.

As shown in fig. 7, a dredging mechanism 6 is provided in the gas collecting tray 3, the dredging mechanism 6 is used for dredging the gas outlet hole 31, and the dredging mechanism 6 includes: the support plate 601, the support plate 601 fixed mounting is in box 1, the electric putter 602 of fixed mounting on the support plate 601 connects soon the movable rod 603 of electric putter 602 tip, a plurality of groups of branches 604 of equiangular setting in the movable rod 603 lower extreme, the round pin axle 605 of fixed welding in branch 604 tip, the fly leaf 606, offer slant spout 6061 on the fly leaf 606, the round pin axle 605 slides and connects slant spout 6061, four groups of dredging parts 607 that the equidistance set up on one side of the fly leaf 606, and, the deflector 608 of grafting dredging parts 607, deflector 608 fixed mounting is in gas collecting tray 3, the movable rod 603 grafting gas collecting tray 3, dredging parts 607 grafting venthole 31.

Specifically, because the gas collecting tray 3 is located in the alkaline solution, alkaline scale is easily adhered to the inside of the gas outlet hole 31, and the accumulated alkaline scale of the gas outlet hole 31 is more and more accumulated along with the accumulation of time, thereby not only affecting the ejection of air from the gas outlet hole 31, but also being more troublesome to clean, therefore, when cleaning the gas outlet hole 31, the electric push rod 602 is started, the electric push rod 602 pushes the movable rod 603, the supporting rod 604 and the pin 605 to move downwards together, the pin 605 slides along the inclined sliding groove 6061, and the pin 605 extrudes the groove wall of the inclined sliding groove 6061, so that the movable plate 606 moves towards the gas outlet hole 31, the movable plate 606 pushes the dredging piece 607 to be inserted into the gas outlet hole 31 along the guide plate 608, and the dredging piece 607 is inserted into the gas outlet hole 31, thereby realizing the cleaning of the gas outlet hole 31, not only relieving the blocking of the gas outlet hole 31 by the alkaline scale, but also facilitating the cleaning of the gas outlet hole 31 by workers.

Example two

As shown in fig. 8 and 9, a first comparative example is shown in which another embodiment of the present invention is: the dredging member 607 includes: the dredging shaft 6071, the casing 6072 that the dredging shaft 6071 one end connects fly leaf 606 soon, the cover is established on the dredging shaft 6071, two sets of guide pillars 6073 of symmetry movable grafting on the casing 6072, a plurality of sets of scrapers 6075 of equiangular welding on the outer circle of dredging shaft 6071, the second spring 6074 of cover setting on a plurality of sets of scrapers 6075, and two sets of protruding axle 6076 of symmetry welding on the dredging shaft 6071, four sets of guiding holes 6081 are offered to the equidistance on the deflector 608, dredging shaft 6071 is along with four sets of scraper 6075 movable grafting guiding holes 6081, guide pillar 6073 one end fixed connection deflector 608, offer two sets of spiral spout 721 on the casing 6072, protruding axle 6076 sliding connection spiral spout 721.

Specifically, if the end of the dredging piece 607 is inserted into the air outlet hole 31, if the scale on the inner wall of the air outlet hole 31 is to be cleaned, the outer ring of the end of the dredging piece 607 must rub against the inner wall of the air outlet hole 31, so that when the dredging piece 607 dredges the air outlet hole 31, the end of the air outlet hole 31 will be completely blocked by the end of the dredging piece 607, the air cannot be sprayed out through the air outlet hole 31, which will affect the purifying efficiency of the air, and secondly, since the fan is in a working state, the air pressure in the air collecting tray 3 is increased, the air pressure is reacted on the fan, which will damage the fan, which will affect the service life of the fan, so that the dredging shaft 6071 together with the four groups of scraping plates 6075 will be inserted into the air outlet hole 31 along the guiding hole 6081, so that most scale in the air outlet hole 31 is ejected, simultaneously, air is sprayed out through gaps between the scraping plates 6075, the dredging shafts 6071 push the shell 6072 to slide along the guide posts 6073 towards the guide plate 608 through the second springs 6074 until the guide plate 608 blocks the shell 6072 and cannot move, at the moment, the dredging shafts 6071 compress the second springs 6074, meanwhile, the dredging shafts 6071 drive the two groups of protruding shafts 6076 to slide along the two groups of spiral sliding grooves 721, under the guidance of the spiral sliding grooves 721, the dredging shafts 6071 and the four groups of scraping plates 6075 rotate, the rotating four groups of scraping plates 6075 rub the inner wall of the air outlet hole 31, so that scale on the inner wall of the air outlet hole 31 is cleaned, and therefore, through the setting of the dredging pieces 607, under the condition that the scale of the air outlet hole 31 is cleaned, air is not influenced to be sprayed into alkaline solution, the pressure born by a fan is greatly reduced, and the service life of the fan is guaranteed.

According to the working principle, the unidirectional air inlet pipe 2 pumps ambient air into the air collecting tray 3 through a fan, then the air is sprayed into alkaline solution through a plurality of groups of air outlet holes 31, the alkaline solution reacts with acid gas in the air, so that the acid gas in the air is removed, the air is purified, alkaline hot steam is contained in the purified air, the air containing the alkaline hot steam enters the pipeline 501 through the air outlet pipe 4, at the moment, the refrigerating sheet 505 is started, the pipeline 501 and the mounting frame 503 are both made of heat insulation materials, the refrigerating surface of the refrigerating sheet 505 rapidly reduces the temperature on the radiating sheet 504, therefore, the alkaline hot steam entering the pipeline 501 is inevitably contacted with the radiating sheet 504, the alkaline hot steam is condensed on the radiating sheet 504 by cold and hot contact to form alkaline solution, the alkaline hot steam in the air is completely removed, the driving pipe 5061 is driven to rotate by a motor, the driving pipe 5061 drives the brush holder 5062 to rotate together with the absorbent cotton block 5063, the rotating absorbent cotton 5063 will pass through the heat sink 504, the absorbent cotton 5063 slides against the heat sink 504, in the sliding process, the absorbent cotton 5063 absorbs the alkaline solution on the heat sink 504, thereby cleaning the alkaline solution on the heat sink 504, the rotating absorbent cotton 5063 cleans the alkaline solution on the heat sink 504, the absorbent cotton 5063 staggers the heat sink 504, the pressure bearing head 625 on the brush holder 5062 is extruded by the crescent bracket 5011 along with the continuous rotation of the absorbent cotton 5063 and the brush holder 5062, the pressure bearing head 625 pushes the slide rod 623 to move together with the Z-shaped bracket 622, the pressure bearing head 625 compresses the first spring 624, the other end of the moving Z-shaped bracket 622 presses the absorbent cotton 5063, the alkaline solution on the absorbent cotton 5063 is extruded, the extruded alkaline solution flows into the driving tube 5061 along with the housing 621, finally, when the driving pipe 5061 flows back into the box body 1 to clean the air outlet hole 31, the electric push rod 602 is started, the electric push rod 602 pushes the movable rod 603, the supporting rod 604 and the pin shaft 605 to move downwards, meanwhile, the pin shaft 605 slides along the inclined sliding groove 6061, the pin shaft 605 presses the groove wall of the inclined sliding groove 6061, the movable plate 606 moves towards the air outlet hole 31, the movable plate 606 pushes the dredging shaft 6071 together with four groups of scraping plates 6075 to be inserted into the air outlet hole 31 along the guide hole 6081, most scale in the air outlet hole 31 is ejected out, meanwhile, air is ejected out through gaps between the scraping plates 6075, the dredging shaft 6071 pushes the shell 6072 to slide towards the guide plate 608 along the guide post 6073 through the second spring 6074 until the guide plate 608 blocks the shell 6072 and cannot move, at the moment, the dredging shaft 6071 compresses the second spring 6074, meanwhile, the two groups of protruding shafts 6076 are driven to slide along the two groups of spiral sliding grooves 721, the four groups of scraping plates 6075 are rotated under the guidance of the spiral sliding grooves 721, and the four groups of scraping plates 6075 rub against the inner walls of the air outlet hole 31, so that the scale on the inner walls of the air outlet hole 31 are cleaned.

The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (10)

1. The utility model provides an underground construction air purification device, includes box (1), one-way intake pipe (2) are connected to box (1) bottom, gas collecting tray (3) are connected to one-way intake pipe (2), outlet duct (4), its characterized in that are connected to box (1) upper end: the air outlet pipe (4) is connected with an air drying assembly (5);

the air drying assembly (5) comprises:

the lower end of the pipeline (501) is fixedly connected with the air outlet pipe (4);

a plurality of groups of mounting grooves (502) which are arranged on the pipeline (501) in a staggered way;

a mounting bracket (503) fixedly welded in the mounting groove (502);

a heat sink (504) welded to the lower end surface of the mounting frame (503);

the method comprises the steps of,

the cooling fin (505) is fixedly arranged on the cooling fin (504), the cooling surface of the cooling fin (505) is attached to the cooling fin (504), and a plurality of groups of air outlet holes (31) are formed in the outer ring of the air collecting disc (3).

2. An underground construction air purification apparatus according to claim 1, wherein: the air drying assembly (5) further comprises:

a cleaning mechanism (506), the cleaning mechanism (506) being configured to clean condensed water on the fin (504);

the cleaning mechanism (506) includes:

-a drive tube (5061), said drive tube (5061) being screwed within said conduit (501);

a plurality of groups of brush holders (5062) which are welded on the driving tube (5061) in a staggered manner;

the method comprises the steps of,

and the absorbent cotton block (5063) is fixedly arranged on the brush handle (5062), and the absorbent cotton block (5063) is connected with the lower end surface of the refrigerating sheet (505) in a sliding way.

3. An underground construction air purification apparatus according to claim 2, wherein: the handle (5062) includes:

a housing (621), the housing (621) being welded to the drive tube (5061), and the housing (621) being in communication with the drive tube (5061) lumen;

a Z-shaped frame (622) movably mounted in the housing (621);

a slide bar (623) fixedly connected to one end of the Z-shaped frame (622);

a first spring (624) sleeved on the sliding rod (623);

the method comprises the steps of,

and a pressure-bearing head (625) fixedly welded at one end of the sliding rod (623).

4. An underground construction air purification apparatus according to claim 3, wherein: the water-absorbing cotton block (5063) is located at the upper port of the shell (621), one end of the water-absorbing cotton block (5063) is fixedly connected with the other end of the Z-shaped frame (622), and the other end of the water-absorbing cotton block (5063) is fixedly connected with the inner wall of the shell (621).

5. An underground construction air purification apparatus according to claim 4, wherein: the sliding rod (623) is movably inserted into the shell (621), a plurality of sets of crescent frames (5011) are arranged in the shell (621) in a staggered mode, and the pressure-bearing head (625) is connected with the crescent frames (5011) in a sliding mode.

6. An underground construction air purification apparatus according to claim 5, wherein: a dredging mechanism (6) is arranged in the gas collecting disc (3), and the dredging mechanism (6) is used for dredging the gas outlet hole (31);

the dredging mechanism (6) comprises:

the support plate (601), the support plate (601) is fixedly arranged in the box body (1);

an electric push rod (602) fixedly mounted on the support plate (601);

a movable rod (603) screwed on the end part of the electric push rod (602);

a plurality of groups of supporting rods (604) which are arranged at the lower end of the movable rod (603) at equal angles;

the pin shaft (605) is fixedly welded at the end part of the supporting rod (604);

a movable plate (606), wherein an inclined chute (6061) is formed on the movable plate (606), and the pin shaft (605) slides to be connected with the inclined chute (6061);

four groups of dredging pieces (607) are equidistantly arranged on one side of the movable plate (606);

the method comprises the steps of,

and a guide plate (608) for plugging the dredging piece (607).

7. An underground construction air purification apparatus according to claim 6, wherein: the guide plate (608) is fixedly installed in the gas collecting disc (3), the movable rod (603) is inserted into the gas collecting disc (3), and the dredging piece (607) is inserted into the gas outlet hole (31).

8. An underground construction air purification apparatus according to claim 7, wherein: the dredging piece (607) comprises:

a dredging shaft (6071), wherein one end of the dredging shaft (6071) is screwed with the movable plate (606);

a shell (6072) sleeved on the dredging shaft (6071);

two groups of guide posts (6073) symmetrically and movably inserted on the shell (6072);

a plurality of groups of scraping plates (6075) welded on the outer ring of the dredging shaft (6071) at equal angles;

a second spring (6074) sleeved on the plurality of groups of scraping plates (6075);

the method comprises the steps of,

two groups of protruding shafts (6076) symmetrically welded on the dredging shaft (6071).

9. An underground construction air purification apparatus according to claim 8, wherein: four groups of guide holes (6081) are formed in the guide plate (608) at equal intervals, the dredging shaft (6071) and four groups of scraping plates (6075) are movably inserted into the guide holes (6081), and one end of the guide post (6073) is fixedly connected with the guide plate (608).

10. An underground construction air purification apparatus according to claim 9, wherein: two groups of spiral sliding grooves (721) are formed in the shell (6072), and the protruding shaft (6076) is connected with the spiral sliding grooves (721) in a sliding mode.