阅读说明：本技术 一种地下工程施工用空气净化器 (air purifier is used in underground works construction ) 是由 侯俊朋 张丹 王海鹏 于 2019-09-05 设计创作，主要内容包括：本发明属于气体净化设备领域,尤其是涉及一种地下工程施工用空气净化器,包括箱体,所述箱体的下端固定安装有风机,所述风机通过单向进气管与箱体连通,所述箱体的上端固定连通有出气管,所述出气管的侧壁上固定安装有温差发电片,所述温差发电片贯穿出气管的侧壁设置,所述箱体内装有碱性溶液,所述箱体两侧的侧壁上均设有与箱体内部连通的电解腔,所述电解腔的上端固定连通有排气管,所述排气管的上端高于碱性溶液的液面高度。本发明可通过碱性溶液将空气中的酸性气体吸收净化,保证地下工作人员的健康安全,通过温差发电片将反应生成的水电解,防止碱性溶液因被稀释而导致净化效果较低的问题发生。(The invention belongs to the field of gas purification equipment, and particularly relates to an air purifier for underground engineering construction, which comprises a box body, wherein a fan is fixedly installed at the lower end of the box body, the fan is communicated with the box body through a one-way air inlet pipe, an air outlet pipe is fixedly communicated with the upper end of the box body, a thermoelectric generation piece is fixedly installed on the side wall of the air outlet pipe, the thermoelectric generation piece penetrates through the side wall of the air outlet pipe, alkaline solution is filled in the box body, electrolytic cavities communicated with the interior of the box body are respectively arranged on the side walls of the two sides of the box body, an exhaust pipe is fixedly communicated with the upper end of each electrolytic cavity, and the upper end of each exhaust pipe is higher. The invention can absorb and purify acid gas in the air through the alkaline solution, ensure the health and safety of underground workers, electrolyze water generated by reaction through the thermoelectric generation sheet, and prevent the problem of low purification effect caused by dilution of the alkaline solution.)

1. The air purifier for the underground engineering construction comprises a box body (1) and is characterized in that a fan (2) is fixedly mounted at the lower end of the box body (1), the fan (2) is communicated with the box body (1) through a one-way air inlet pipe (3), an air outlet pipe (4) is fixedly communicated with the upper end of the box body (1), a thermoelectric generation piece (5) is fixedly mounted on the side wall of the air outlet pipe (4), the thermoelectric generation piece (5) penetrates through the side wall of the air outlet pipe (4), alkaline solution (6) is arranged in the box body (1), electrolytic cavities (7) communicated with the inside of the box body (1) are arranged on the side walls of the two sides of the box body (1), an exhaust pipe (8) is fixedly communicated with the upper end of the electrolytic cavities (7), the upper end of the exhaust pipe (8) is higher than the liquid level of the alkaline solution (6), and the bottom surfaces of the two electrolytic cavities (7) are respectively and fixedly connected with an anode electrolytic rod (9) and, the positive electrode electrolytic rod (9) and the negative electrode electrolytic rod (10) are arranged in the exhaust pipe (8) in an extending mode, and the positive electrode electrolytic rod (9) and the negative electrode electrolytic rod (10) are respectively electrically connected with the positive electrode and the negative electrode of the thermoelectric generation sheet (5).

2. The air purifier for underground construction according to claim 1, wherein the upper end of the one-way air inlet pipe (3) penetrates through the box body (1) and extends into the interior of the box body (1), the upper end of the one-way air inlet pipe (3) is fixedly communicated with a bifurcated pipe (11), and a plurality of through holes (12) which are arranged in an equidistant array are formed in the side wall of the bifurcated pipe (11).

3. The air purifier for the underground engineering construction according to claim 1, wherein an air guide pipe (13) is fixedly communicated with the upper end of the exhaust pipe (8) corresponding to the cathode electrolytic rod (10), water-absorbing cotton is filled in the air guide pipe (13), and the other end of the air guide pipe (13) is fixedly communicated with the air storage tank (14).

4. An air cleaner for underground construction according to claim 1, a shell (15) is rotatably connected on the inner side wall of the box body (1), a fan (16) is coaxially and fixedly connected above the shell (15), the fan (16) is arranged in the air outlet pipe (4), the inner side wall of the shell (15) is fixedly connected with an annular baffle plate (17), a plurality of drain holes are arranged in the annular baffle (17), the annular baffle (17) divides the interior of the shell (15) into a water suction cavity (18) and a drainage cavity (19), water suction cotton (20) is filled in the water suction cavity (18), and the upper top surface and the lower bottom surface of the water suction cavity (18) are both provided with air holes communicated with the box body (1), the lower end of the drainage cavity (19) is fixedly communicated with a drainage pipe (21), and the lower end of the drainage pipe (21) extends to the position below the liquid level of the alkaline solution (6).

Technical Field

The invention belongs to the field of gas purification equipment, and particularly relates to an air purifier for underground engineering construction.

Background

The underground engineering is underground civil engineering built for developing and utilizing underground space resources, and includes underground house, underground structure, underground railway, highway tunnel, underwater tunnel, underground common ditch, street-crossing underground passage, etc. In the construction process of underground engineering, construction operations such as drilling, blasting, slag charging and the like can generate a large amount of dust particles and acid gas (such as SO2), if the air circulation is not smooth, the insufficient fuel oil combustion caused by oxygen deficiency of the machine can be aggravated, the content of the acid gas in the discharged tail gas is increased, the mechanical power is reduced, the health of operators is damaged, and the service life of the machine is shortened.

In the underground construction process, in order to ensure the physical health of operators and the normal work of mechanical equipment, fresh air is mostly conveyed to a construction area through pipelines and mechanical air supply modes, but the mode still has difficulty in reducing the concentration of harmful gases to a safe range, and along with the extension of the length of a tunnel or a roadway, the quantity of operating machines is increased, and the difficulty in inputting the fresh air and discharging dirty air is further increased; in the prior art, an alkaline solution is mostly placed in an underground construction site to neutralize acid gas in air, the acid gas carried in the air and the alkaline solution are subjected to a neutralization reaction, the reaction equation is SO2+2NaOH ═ Na2SO3+ H2O, a large amount of water is generated by the reaction, and NaOH is gradually consumed in the reaction, SO that the concentration of the alkaline solution is gradually reduced, and workers are required to frequently replace the alkaline solution.

Therefore, an air purifier for underground engineering construction is provided to solve the problems.

Disclosure of Invention

The invention aims to solve the problem that acid gas generated in the underground construction environment is difficult to remove, and provides an air purifier for underground engineering construction, which can absorb and purify the acid gas.

In order to achieve the purpose, the invention adopts the following technical scheme: an air purifier for underground engineering construction comprises a box body, wherein a fan is fixedly arranged at the lower end of the box body, the fan is communicated with the box body through a one-way air inlet pipe, the upper end of the box body is fixedly communicated with an air outlet pipe, the side wall of the air outlet pipe is fixedly provided with a thermoelectric generation piece which penetrates through the side wall of the air outlet pipe, the box body is filled with alkaline solution, the side walls of the two sides of the box body are respectively provided with an electrolysis cavity communicated with the interior of the box body, the upper ends of the electrolysis cavities are fixedly communicated with exhaust pipes, the upper ends of the exhaust pipes are higher than the liquid level of the alkaline solution, the bottom surfaces of the two electrolysis cavities are respectively and fixedly connected with an anode electrolysis rod and a cathode electrolysis rod, the positive electrode electrolytic rod and the negative electrode electrolytic rod are both extended into the exhaust pipe and are electrically connected with the positive electrode and the negative electrode of the thermoelectric generation piece respectively.

In foretell air purifier for underground works construction, the upper end of one-way intake pipe runs through the box and extends to the box in and set up, the fixed intercommunication in upper end of one-way intake pipe has the bifurcated pipe, be equipped with the through-hole that a plurality of equidistance arrays set up on the lateral wall of bifurcated pipe.

In the air purifier for underground engineering construction, the upper end of the exhaust pipe corresponding to the cathode electrolytic rod is fixedly communicated with an air guide pipe, water absorption cotton is filled in the air guide pipe, and the other end of the air guide pipe is fixedly communicated with an air storage tank.

In foretell air purifier for underground works construction, fixedly connected with baffle on the inside wall of box, be equipped with the through-hole that a plurality of annular array set up in the baffle.

In foretell air purifier for underground works construction, it is connected with the casing to rotate on the inside wall of box, the coaxial fixedly connected with fan in top of casing, the fan sets up in the outlet duct, fixedly connected with ring baffle on the inside wall of casing, be equipped with a plurality of wash ports in the baffle, ring baffle separates casing internal partitioning for absorbing water chamber and drainage chamber, it has the cotton that absorbs water to absorb water intracavity packing, just the last top surface in chamber that absorbs water and lower bottom surface all are equipped with the gas pocket with the box intercommunication, the fixed intercommunication of lower extreme in drainage chamber has the drain pipe, the lower extreme of drain pipe extends to the liquid level below setting of alkaline solution.

Compared with the prior art, the air purifier for the local engineering construction has the advantages that:

1. According to the invention, the one-way air inlet pipe and the one-way air outlet pipe are arranged, so that the air carrying the acid gas is introduced into the box body in a mode of entering from bottom to top, the acid gas is enabled to react with the alkaline solution more fully, and the purification effect of the acid gas is ensured.

2. According to the invention, by arranging the bifurcated pipe, air carrying acid gas can be uniformly introduced into the box body, so that the contact area of the gas and alkaline solution is increased, and the purification effect of the bifurcated pipe on the acid gas is further improved.

3. According to the invention, through the arrangement of the temperature difference power generation piece, the acid gas carried in the air and the alkaline solution are subjected to neutralization reaction to release a large amount of heat, the heat is carried by the air and enters the air outlet pipe, and then a large temperature difference is generated at two ends of the temperature difference power generation piece, so that the heat energy generated by the reaction is converted into electric energy.

4. According to the invention, the water in the alkaline solution in the box body is electrolyzed by the anode electrolytic rod and the cathode electrolytic rod which are electrically connected with the thermoelectric generation piece, so that the concentration of NaOH in the alkaline solution is improved, the air purification effect is ensured, and the period of replacing the alkaline solution by constructors is prolonged.

5. In the invention, oxygen generated at the positive electrode bar is discharged to the atmosphere of an underground construction site through the exhaust pipe so as to increase the oxygen concentration in the air and reduce the possibility of the accident of oxygen deficiency and asphyxiation of workers caused by unsmooth air circulation of the underground construction environment.

6. In the invention, hydrogen generated at the negative electrode rod is filtered by the absorbent cotton in the air guide pipe and then enters the air storage tank for storage and collection, so that the pollution to the underground construction environment is prevented, and meanwhile, the collected hydrogen can be used as clean energy, so that the utilization rate of resources is improved.

7. In the invention, after the air passes through the shell, alkaline solution mixed in the air is absorbed by the absorbent cotton, so that secondary pollution to the underground construction environment can be prevented, and the health of workers is ensured.

8. According to the invention, air blows through the fan to drive the fan to rotate, then the shell is driven to rotate, the alkaline solution adsorbed in the absorbent cotton is thrown into the drainage cavity under the action of centrifugal force, and then the alkaline solution is recovered into the box body through the drainage pipe, so that resources are saved, and the consumption speed of the alkaline solution is slowed down.

Drawings

FIG. 1 is a schematic structural view of an embodiment 1 of an air cleaner for underground construction according to the present invention;

FIG. 2 is a schematic structural diagram of an embodiment 2 of an air purifier for underground engineering construction according to the present invention;

Fig. 3 is a schematic view of an internal structure of a housing in embodiment 2 of the air cleaner for underground construction according to the present invention.

In the figure, 1 box body, 2 fans, 3 one-way air inlet pipes, 4 air outlet pipes, 5 thermoelectric generation sheets, 6 alkaline solution, 7 electrolysis cavities, 8 exhaust pipes, 9 anode electrolysis rods, 10 cathode electrolysis rods, 11 bifurcated pipes, 12 through holes, 13 air guide pipes, 14 air storage tanks, 15 shells, 16 fans, 17 annular baffles, 18 water suction cavities, 19 water discharge cavities, 20 water suction cotton and 21 water discharge pipes.

Detailed Description

The following examples are for illustrative purposes only and are not intended to limit the scope of the present invention.