Liquid washing air purification system

Abstract

The utility model discloses a liquid washing air purification system which comprises an air inlet channel, a negative oxygen ion generator, an atomization sprayer, a liquid washing vortex separator and a solution absorption regulator. An atomization sprayer is arranged above a channel, close to the liquid washing vortex separator, of the air inlet channel, and the air inlet channel is communicated with the top of the liquid washing vortex separator; a hollow channel is formed in the liquid washing vortex separator and communicated with the solution absorption regulator through a connecting pipeline, an absorption liquid pool is arranged at the bottom of the liquid washing vortex separator, and a second electromagnetic valve is further arranged on a first water outlet pipeline of the absorption liquid pool; the output end of the first water pump is respectively connected with the atomization sprayer and a liquid supplementing hole of the liquid washing vortex separator; and the airflow channel is communicated with a purified air outlet pipeline. The air purification efficiency can be effectively improved, and secondary pollution is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of air purification, and in particular relates to a liquid-washing air purification system. Background Art

[0002] The treatment of pollutants in the air mainly adopts filtration, adsorption, and spray liquid washing, but there are some disadvantages. For example, in the filtration method, the system resistance increases rapidly with the increase of dust accumulation on the filter (membrane), the dust holding capacity is very limited, and mold, dust mites and other microorganisms multiply on the dust accumulated on the filter membrane (net), and there is a possibility of secondary pollution; in the adsorption method, the treatment effect is obviously limited by the effective contact area between the adsorption material and the air. As the effective contact area between the adsorption material and the air increases, the system resistance will increase, and as the adsorption amount increases, the system resistance will also increase rapidly; the total adsorption amount is small, the adsorption effect on small molecular pollutants is poor, and there is a problem of repeated desorption leading to secondary pollution; the elution capacity of spray liquid washing mainly depends on the effective components and concentration of the eluent, but because the previous liquid washing device often only adopts the structure of atomizing spray + bubbling ball + water blocking plate, the effective contact efficiency between air and eluent is low, the amount of liquid in the air outlet is large, and the eluent itself that has not been replaced for a long time becomes a source of air pollution.

[0003] In summary, the three methods of air pollutant treatment, filtration, adsorption, and spray liquid washing, all have limitations: the filtration method is prone to increased resistance and secondary pollution due to dust accumulation on the filter material; the adsorption method is limited by the contact area and adsorption capacity, the system resistance increases quickly and there is a risk of secondary release; the spray liquid washing method has low contact efficiency, large liquid content in the air, and the elution liquid may deteriorate and become a source of pollution, thus affecting its purification efficiency. Utility Model Content

[0004] In order to solve the above problems, the utility model provides a liquid washing air purification system, which can effectively improve the air purification efficiency and effectively avoid secondary pollution.

[0005] The scheme of the utility model is as follows:

[0006] A liquid-washing air purification system comprises an air intake channel, a negative oxygen ion generator, an atomizing sprayer, a liquid-washing vortex separator, and a solution absorption regulator, wherein the negative oxygen ion generator is arranged at the entrance of the air intake channel, the atomizing sprayer is arranged above the channel of the air intake channel close to the liquid-washing vortex separator, and the air intake channel is connected to the top of the liquid-washing vortex separator; an interlayer is arranged on the top wall of the liquid-washing vortex separator, and a liquid replenishing hole is arranged on the interlayer; a hollow channel is arranged inside the liquid-washing vortex separator, and the hollow channel is connected to the airflow channel of the solution absorption regulator through a connecting pipe; an absorption liquid pool is arranged at the bottom of the liquid-washing vortex separator, a first water outlet pipe of the absorption liquid pool is connected to a first water pump, and a second solenoid valve is also arranged on the first water outlet pipe of the absorption liquid pool, and the output end of the first water pump is respectively connected to the atomizing sprayer and the liquid replenishing hole of the liquid-washing vortex separator; a purified air outlet pipe communicating with the airflow channel is also arranged in the solution absorption regulator.

[0007] Furthermore, the liquid washing vortex separator is in the shape of a pear-shaped separating funnel, and the air inlet of the hollow channel is arranged at the inside / height position of the liquid washing vortex separator and extends vertically upward and is connected to the solution absorption regulator through a connecting pipe.

[0008] Furthermore, it also includes a regulating liquid storage tank, the outlet pipe of which is connected to the input end of a second water pump, and the output end of the second water pump is connected to the air flow channel inlet of the solution absorption regulator; it also includes an absorption liquid storage tank, the outlet pipe of which is provided with a first water pump, and the outlet pipe of the absorption liquid storage tank is provided with a first solenoid valve; and a waste liquid storage tank is also provided, and the absorption liquid pool and the solution absorption regulator are both connected to the waste liquid storage tank.

[0009] Furthermore, a first sensor is arranged in the absorption liquid pool, the first sensor is connected to the electronic control system, and the first sensor is an oxidation-reduction potential composite conductivity sensor; the second water outlet pipe of the absorption liquid pool is connected to the waste liquid storage tank, and a third solenoid valve is arranged on the second water outlet pipe of the absorption liquid pool, and the waste liquid is discharged into the waste liquid storage tank through the third solenoid valve and the third water pump.

[0010] Furthermore, the outlet pipe of the solution absorption regulator is connected to the waste liquid storage tank, and the outlet pipe of the solution absorption regulator is provided with a fourth solenoid valve, and the waste liquid is discharged into the waste liquid storage tank through the fourth solenoid valve and the third water pump.

[0011] Furthermore, a second sensor is provided in the solution absorption regulator, the second sensor is connected to the electronic control system, and the second sensor is a pH value composite conductivity sensor; a first surface cooling heat exchanger is also provided inside the solution absorption regulator, and a second surface cooling heat exchanger is provided in the purified air outlet duct of the solution absorption regulator;

[0012] Furthermore, the purified air outlet duct is connected to an exhaust fan, and the treated air is discharged through the exhaust fan; a third sensor connected to the electric control system is provided at the purified air outlet duct, and the third sensor is a temperature and humidity sensor. Compared with the prior art, the beneficial effects of the utility model are:

[0013] (1) The utility model pre-treats the air through a negative oxygen ion generator to increase the negative charge intensity of particles and micro-droplets in the air. At the same time, a suitable absorption liquid component is used and a positive electric field within a safe voltage range is applied to the absorption liquid through an electric control system, so that the absorption liquid can better combine with the particles and micro-droplets in the air, and then react, dissolve or generate corresponding precipitation, thereby enhancing the effect of separating and removing pollutants. When appropriate disinfection components are added to the absorption liquid, disinfection and sterilization of the air can be achieved;

[0014] (2) The absorption liquid is mixed with air by an atomizing sprayer, and then enters the liquid washing vortex separator to use the absorption liquid flowing on the inner wall, which increases the contact opportunity and contact time between the particles and micro-droplets in the air and the absorption liquid, thereby improving the elution rate, removal effect or disinfection effect;

[0015] (3) The air coming out of the liquid washing vortex separator is further processed by a solution absorption regulator to remove the residual particles, micro-droplets and a small amount of absorption liquid components in the air. At the same time, the solution absorption regulator can control the temperature (through fluorine cooling, water cooling or semiconductor refrigeration / heating, etc.), and the regulating liquid can select appropriate components, viscosity and osmotic pressure (including ion osmotic pressure and colloidal osmotic pressure). The combination of the two can completely remove the residual chemical components of the absorption liquid in the air and control the evaporation of the liquid. For example, dehumidification can be performed when the humidity is too high, and humidification can be performed when the humidity is too low, so as to finally obtain clean air with appropriate temperature and humidity. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a structural diagram of the liquid washing air purification system of the utility model.

[0017] Figure numerals: 1. air intake channel; 2. negative oxygen ion generator; 3. atomizing sprayer; 4. liquid washing vortex separator; 401. hollow channel; 402. interlayer; 403. connecting pipe; 404. absorption liquid pool; 405. first sensor; 5. solution absorption regulator; 501. second sensor; 502. first surface cooling heat exchanger; 503. second surface cooling heat exchanger; 504. third sensor; 505. purified air outlet duct; 6. absorption liquid storage tank; 601. first water pump; 7. regulating liquid storage tank; 701. second water pump; 8. waste liquid storage tank; 801. third water pump; 9. exhaust fan. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] In the description of the present utility model, it should be noted that the terms "upper", "lower", "inner", "outer", "top", "lower" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model; in addition, unless otherwise clearly specified and limited, the terms "connected", "connected", and "connected" should be understood in a broad sense, for example, it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal connection of two elements, or it can be an electrical connection. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0020] The utility model discloses a liquid-washing air purification system, comprising an air intake channel 1, a negative oxygen ion generator 2, an atomizing sprayer 3, a liquid-washing vortex separator 4, and a solution absorption regulator 5. The negative oxygen ion generator 2 is arranged at the entrance of the air intake channel 1, the atomizing sprayer 3 is arranged above the rear part of the air intake channel 1, and the air intake channel 1 is connected to the top of the liquid-washing vortex separator 4; the liquid-washing vortex separator 4 is in the shape of a pear-shaped separating funnel, and an interlayer 402 is arranged on the top wall of the liquid-washing vortex separator 4, and a liquid replenishing hole is arranged on the interlayer 402, and the liquid passed into the liquid replenishing hole can be left along the inner wall of the liquid-washing vortex separator 4. A hollow channel 401 is provided inside the liquid washing vortex separator 4. The air inlet of the hollow channel 401 is arranged at a position of 1 / 2 of the height inside the liquid washing vortex separator 4 and extends vertically upward and is connected to the air flow channel of the solution absorption regulator 5 through a connecting pipe 403. The solution absorption regulator (5) is also provided with a purified air outlet pipe (505), and the air flow channel is connected to the purified air outlet pipe (505).

[0021] It also includes an absorption liquid storage tank 6, the outlet pipe of the absorption liquid storage tank 6 is provided with a first water pump 601, the outlet pipe of the absorption liquid storage tank 6 is provided with a first solenoid valve, and the outlet end of the first water pump 601 is connected to the atomizing sprayer 3 and the liquid replenishing hole through a pipeline;

[0022] An absorption liquid pool 404 is arranged at the bottom of the liquid washing vortex separator 4, the first water outlet pipe of the absorption liquid pool 404 is connected to the first water pump 601, and the first water outlet pipe of the absorption liquid pool 404 is provided with a second solenoid valve; the second water outlet pipe of the absorption liquid pool 404 is connected to the third water pump 801, and the second water outlet pipe of the absorption liquid pool 404 is provided with a third solenoid valve, and the electronic control system controls the discharge of wastewater to the waste liquid storage tank 8 through the third water pump 801 and the third solenoid valve.

[0023] An airflow channel is provided in the solution absorption regulator 5, and the airflow channel is irregularly S-shaped. The airflow flowing through the airflow channel can come into contact with the regulating liquid. Chemical agents are added to the absorption liquid, and the tiny droplets therein cannot be completely removed during the vortex separation in the liquid washing vortex separator 4. The solution absorption regulator 5 can continuously change the direction of the airflow and repeatedly accelerate through the irregular S-shaped airflow channel, so that the tiny droplets carried in the airflow can be absorbed by the regulating liquid.

[0024] The solution absorption regulator 5 is provided with a first surface cooling heat exchanger 502 for lowering the solution temperature and reducing the evaporation of the solution; the purified air outlet duct 505 of the solution absorption regulator 5 is provided with a second surface cooling heat exchanger 503 for adjusting the outlet air temperature, and the purified air outlet duct 505 is provided with a third sensor 504, which is a temperature and humidity sensor connected to the electronic control system for monitoring the temperature and humidity of the exhaust air. The outlet pipe of the solution absorption regulator 5 is connected to the third water pump 801, and the outlet pipe of the solution absorption regulator 5 is provided with a fourth solenoid valve, and the waste liquid is discharged into the waste liquid storage tank 8 by controlling the third water pump 801 and the fourth solenoid valve.

[0025] The third water pump 801 leads the waste water to the waste liquid storage tank for subsequent treatment, and then discharges it after it passes the treatment.

[0026] The output end of the first water pump 601 is connected to the liquid replenishing hole of the atomizing sprayer 3 and the liquid washing vortex separator 4 respectively. By controlling the first water pump 601, the first solenoid valve and the second solenoid valve, the liquid washing vortex separator 4 works in a circulation or (and) liquid replenishing state.

[0027] The utility model realizes the recycling of the absorption liquid. In addition to the water pump, other methods such as a Venturi liquid suction device can be used to realize the circulation of the absorption liquid.

[0028] The liquid washing air purification system of the utility model further comprises a regulating liquid storage tank 7 , and a water outlet pipe of the regulating liquid storage tank 7 is connected to the input end of the second water pump 701 .

[0029] The liquid washing air purification system is also connected to the electronic control system, which controls the opening and closing of each solenoid valve through the electronic control box.

[0030] In this embodiment, a first sensor 405 is provided in the absorption liquid pool 404. The first sensor 405 is preferably a redox potential composite conductivity sensor for monitoring the redox potential and conductivity of the absorption liquid. The first sensor 405 is connected to the electric control box. When the first sensor 405 detects that the absorption liquid index exceeds the standard, the electric control system first turns on the third water pump 801 and the third solenoid valve to discharge the absorption liquid in the absorption liquid pool 404 to the waste liquid storage tank 8. When the liquid level drops to the set height, the third water pump 801 and the third solenoid valve are turned off, and the second solenoid valve is turned off and the first solenoid valve is turned on. The first water pump 601 that is continuously running allows the liquid in the absorption liquid storage tank 6 to enter the liquid washing vortex separator 4 through the atomizing sprayer 3 and the liquid replenishing hole of the interlayer 402 until the liquid level of the absorption liquid pool 404 at the bottom returns to the set height. At this time, the first solenoid valve and the second open solenoid valve are turned off to complete the liquid replacement operation of the absorption liquid.

[0031] In this embodiment, a second sensor 501 is provided in the solution absorption regulator 5, and the second sensor 501 is connected to the electrical control box; the second sensor 501 is preferably a pH value composite conductivity sensor. When the second sensor 501 detects that the pH value or conductivity of the solution in the solution absorption regulator 5 exceeds the standard, the electrical control system first turns on the third water pump 801 and the fourth solenoid valve to discharge the absorption liquid in the solution absorption regulator 5 to the waste liquid storage tank 8. When the liquid level drops to the set height, the third water pump 801 and the fourth solenoid valve are closed, and the second water pump 701 is turned on at the same time to lead the regulating liquid in the regulating liquid storage tank 7 to the solution absorption regulator 5, until the regulating liquid level in the solution absorption regulator 5 returns to the set height, and then the second water pump 701 is turned off to complete the absorption liquid replacement operation.

[0032] The main working principle of the utility model is: polluted air enters the air intake duct, first passes through the negative oxygen ion generator 2 to increase the negative charge of particles and droplets in the air, and then passes through the atomizing sprayer 3 to spray the absorption liquid, so that the mixed air carrying the micro-mist droplets quickly enters the liquid washing vortex separator 4, the mixed air rotates continuously and contacts and collides with the absorption liquid flowing down the inner wall of the liquid washing vortex separator 4, in this process, the absorption liquid droplets react with the corresponding substances in the air to generate non-volatile substances, or emulsify organic matter so that it can be mixed with water, or wrap particles into the absorption liquid; the mixed air rotates at a high speed, and due to the action of centripetal force, the droplets and particles with larger mass are thrown to the inner wall of the liquid washing vortex separator 4, and merge with the liquid on the inner wall, and flow down with the liquid to the absorption liquid pool 404 at the bottom of the liquid washing vortex separator 4, wherein the liquid in the absorption liquid pool 404 is pumped to the atomizing sprayer 3 by the first water pump 601 for recycling;

[0033] The remaining air containing few droplets and particles enters the solution absorption regulator 5 through the hollow channel 401 and the connecting pipe 403 in the middle of the liquid washing vortex separator 4. The airflow is accelerated when it repeatedly passes through the narrow gap in the irregular S-shaped airflow channel. The small amount of droplets and particles remaining in the air are blown into the regulating liquid of the solution absorption regulator 5, so that the air is further purified; the regulating liquid is kept at a suitable temperature by the first surface cooling heat exchanger 502 in the regulating liquid. Combined with the preferred ion osmotic pressure and colloidal osmotic pressure when preparing the regulating liquid, excessive evaporation of the regulating liquid can be avoided and the air humidity can be reduced (or the evaporation amount can be increased to increase the air humidity); at the same time, the second surface cooling heat exchanger 503 built in the purified air outlet pipe 505 of the solution absorption regulator 5 can cool (heat) the outlet air to a suitable temperature. During the cooling process, the steam in the air is further condensed on the heat exchange fins of the second surface cooling heat exchanger 503, and the generated droplets return to the regulating liquid. The whole system can not only effectively purify the air, but also adjust the temperature and humidity of the air.

[0034] The above specific embodiments further illustrate the purpose, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above are only specific embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A liquid washing air purification system, characterized in that: The invention comprises an air intake channel (1), a negative oxygen ion generator (2), an atomizing sprayer (3), a liquid-washing vortex separator (4), and a solution absorption regulator (5); the negative oxygen ion generator (2) is arranged at the entrance of the air intake channel (1); the atomizing sprayer (3) is arranged above the channel of the air intake channel (1) close to the liquid-washing vortex separator (4); the air intake channel (1) is connected to the top of the liquid-washing vortex separator (4); an interlayer (402) is arranged on the top wall of the liquid-washing vortex separator (4); a liquid replenishing hole is arranged on the interlayer (402); and the liquid-washing vortex separator (4) is provided with a liquid replenishing hole inside. There is a hollow channel (401), the hollow channel (401) is connected to the air flow channel of the solution absorption regulator (5) through a connecting pipe, an absorption liquid pool (404) is arranged at the bottom of the liquid washing vortex separator (4), the first water outlet pipe of the absorption liquid pool (404) is connected to the first water pump (601), the first water outlet pipe of the absorption liquid pool (404) is also provided with a second solenoid valve, the output end of the first water pump (601) is respectively connected to the atomizing sprayer (3) and the liquid replenishing hole of the liquid washing vortex separator (4); the solution absorption regulator (5) is also provided with a purified air outlet pipe (505) connected to the air flow channel.

2. The liquid washing air purification system according to claim 1, characterized in that: The liquid-washing vortex separator (4) is in the shape of a pear-shaped separating funnel, and the air inlet of the hollow channel (401) is arranged at a position of 1 / 2 of the height inside the liquid-washing vortex separator (4) and extends vertically upward to be connected to the solution absorption regulator (5) through a connecting pipe (403).

3. The liquid washing air purification system according to claim 1, characterized in that: It also includes a regulating liquid storage tank (7), the outlet pipe of the regulating liquid storage tank (7) is connected to the input end of the second water pump (701), and the output end of the second water pump (701) is connected to the air flow channel inlet of the solution absorption regulator (5); it also includes an absorption liquid storage tank (6), the outlet pipe of the absorption liquid storage tank (6) is provided with a first water pump (601), and the outlet pipe of the absorption liquid storage tank (6) is provided with a first solenoid valve; A waste liquid storage tank (8) is also provided, and the absorption liquid pool (404) and the solution absorption regulator (5) are both connected to the waste liquid storage tank (8).

4. The liquid washing air purification system according to claim 1, characterized in that: A first sensor (405) is arranged in the absorption liquid pool (404), the first sensor (405) is connected to an electric control system, and the first sensor (405) is an oxidation-reduction potential composite conductivity sensor; a second water outlet pipe of the absorption liquid pool (404) is connected to a waste liquid storage tank (8), and a third solenoid valve is arranged on the second water outlet pipe of the absorption liquid pool (404), and the waste liquid is controlled to be discharged into the waste liquid storage tank (8) through the third solenoid valve and a third water pump (801).

5. The liquid-wash air purification system according to claim 1, characterized in that: The outlet pipe of the solution absorption regulator (5) is connected to the waste liquid storage tank (8), and the outlet pipe of the solution absorption regulator (5) is provided with a fourth solenoid valve, and the waste liquid is controlled to be discharged into the waste liquid storage tank (8) through the fourth solenoid valve and the third water pump (801).

6. The liquid washing air purification system according to claim 1 or 5, characterized in that: The solution absorption regulator (5) is provided with a second sensor (501), the second sensor (501) is connected to an electric control system, and the second sensor (501) is a pH value composite conductivity sensor; the solution absorption regulator (5) is also provided with a first surface cooling heat exchanger (502), and the purified air outlet duct (505) of the solution absorption regulator (5) is provided with a second surface cooling heat exchanger (503).

7. The liquid-wash air purification system according to claim 1, characterized in that: The purified air outlet duct (505) is connected to an exhaust fan (9) and the treated air is discharged through the exhaust fan (9); a third sensor (504) connected to an electric control system is provided at the purified air outlet duct (505), and the third sensor (504) is a temperature and humidity sensor.

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