CN206508709U - Negative-pressure water spraying and dust-removing system - Google Patents

Abstract

The utility model aims to provide a negative pressure water spray dust removal system with simple structure and good dust removal effect. The utility model comprises a sealing box (3) provided with an air inlet (1) and an air outlet (2), and a plurality of upper blocking plates (4) and a plurality of lower blocking plates (5) are arranged in the sealing box, and a plurality of upper blocking plates Arranged alternately with several lower baffle plates, there is a gap between the lower end of the upper baffle plate and the inner bottom surface of the sealed box to form a lower air duct (6), and there is a gap between the upper end of the lower baffle plate and the inner top surface of the sealed box and An upper ventilation channel (7) is formed, and a number of spray heads (8) are arranged on both sides of several upper baffle plates and several lower baffle plates, and the spray heads communicate with the water pump (9) arranged on the periphery of the sealed box and are controlled by The water pump is used for water supply, and an exhaust fan (10) is arranged at the air outlet, and filter screens (11) are all arranged at all lower ventilation channels and upper ventilation channels. The utility model can be applied to the field of environmental protection.

Description

Negative pressure water spray dust removal system

technical field

The utility model relates to the field of environmental protection, in particular to a negative pressure water spray dust removal system.

Background technique

Maintaining the comfort of the working environment can effectively reduce the impact of the working environment on the health of the staff. In the production workshop, a large amount of dust will be generated when the equipment is working, and the dust removal system came into being. In the prior art, dust removal is generally carried out through water curtains, etc., and then discharged to the atmosphere. In order to improve the dust removal efficiency, a fan is often installed at the air inlet, and the dust is blown to the water curtain faster through the fan. However, because the blades of the fan are in a high-speed rotating state, when the dust is inhaled, it will cause the dust to be charged with static electricity, so that the dust will accumulate in the air duct. It is necessary to regularly clean the dust attached to the air duct and the entire dust removal system. Maintenance; at the same time, due to the structural defects of the water curtain, the dust filtration effect is still not ideal, and the gas discharged into the air can still detect the presence of particulate matter, which will cause secondary pollution to the environment.

Utility model content

The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a negative pressure water spray dust removal system with simple structure and good dust removal effect.

The technical solution adopted by the utility model is: the utility model comprises a sealed box provided with an air inlet and an air outlet, and a plurality of upper baffle plates and a plurality of lower baffle plates are arranged in the sealed box, and a plurality of the upper baffle plates and A plurality of the lower blocking plates are arranged alternately, a plurality of the upper blocking plates are fixedly arranged on the inner upper side of the sealed box, and a plurality of the lower blocking plates are fixedly arranged on the inner lower side of the sealed box, the There is a gap between the lower end of the upper blocking plate and the inner bottom surface of the sealed box to form a lower air passage, and there is a gap between the upper end of the lower blocking plate and the inner top surface of the sealed box to form an upper air passage. Both sides of the upper baffle plate and the lower baffle plates are equipped with a number of spray heads, and the spray heads communicate with the water pump arranged on the periphery of the sealed box and are supplied with water by the water pump. An exhaust fan is arranged at the air outlet, and filter screens are arranged at all the lower air passages and the upper air passages.

It can be seen from the above scheme that a number of upper baffle plates and a number of lower baffle plates are arranged in the sealed box, and the upper baffle plates and the lower baffle plates are alternately arranged, and the lower air ducts are respectively formed at the lower end of the upper baffle plate and the upper end of the lower baffle plate. and the upper air passage, and spray heads are arranged on both sides of the upper baffle plate and the lower baffle plate, forming a long-distance spray channel from the air inlet to the air outlet, so that the dust entering from the air inlet is washed It goes down to the bottom of the sealed box and deposits; in addition, by setting the filter screen at the lower and upper ventilation channels, further dust removal can be achieved, and the dust removal effect is excellent; more importantly, an exhaust fan is installed at the air outlet , the exhaust fan makes the air pressure in the spray channel lower than the normal pressure, forming a negative pressure, so that the dust air in the workshop automatically enters the spray channel, and also avoids the situation that the dust is charged by setting the exhaust fan at the air inlet , so as to ensure the cleanliness of the ventilation channel, coupled with the setting of the spray head, the maintenance cost of the channel is avoided, and the maintenance cost is reduced; in addition, the utility model has a simple structure and low manufacturing cost.

Further, a control panel is provided on the periphery of the sealed box, a CPU is provided in the control panel, a dust sensor is provided at the air inlet, and the dust sensor, the water pump and the exhaust fan are all connected to each other. The CPU signal connection.

It can be seen from the above scheme that through the setting of the dust sensor, the CPU can be used to realize synchronous control. When the dust sensor detects that there is dust reaching the air inlet, the CPU controls the exhaust fan and the water pump to start at the same time, and the exhaust fan pumps the dust to flow through the air duct. , At the same time, there is water mist sprayed from the sprinkler head, so as to realize dust removal, which improves the efficiency of energy utilization and water utilization, avoids the waste of electric energy and water resources, reduces costs, and achieves the effect of energy saving and environmental protection.

Still further, a liquid level controller is arranged on the inner bottom of the sealed box, the liquid level controller is a mechanical ball valve liquid level controller, and a water collection tank is arranged on the periphery of the sealed box, and the collected water The water tank communicates with the liquid level controller through a water pipe, the water collecting tank is also connected with a water source, and the water collecting tank is also provided with a water supply pipe to supply water to the water pump.

The above scheme shows that the water mist sprayed from the sprinkler head adheres to the dust and drives the dust to fall on the bottom of the sealed box under the action of gravity. With the long-term operation of the spraying work, the water level at the bottom of the sealed box is getting higher and higher. The higher the dust is, the dust will be deposited in the sealed box accordingly. When the water level is higher than the warning water level set by the liquid level controller, the liquid level controller will open and release water, and the water will be collected into the water collection tank. When the water pump is working, The water collection tank can supply water to the water pump, so as to realize water recycling and meet the requirements of environmental protection and energy saving; in addition, the circulating water can be replenished through the water source connected to the water collection tank.

Still further, a pressure sensor is also provided in the sealed box, and the pressure sensor is connected to the CPU for signals.

It can be seen from the above scheme that the pressure of the air duct in the sealed box is sensed by the pressure sensor, the speed of the exhaust fan is controlled by the CPU, and the pressure of the air duct in the sealed box is adjusted so that the dust is in a state where it is most likely to be absorbed by water mist, and then Effectively improve dust removal efficiency.

Still further, a normally closed sewage outlet is also provided at the bottom of the sealed box.

It can be seen from the above scheme that by setting the normally closed sewage outlet, the dust deposited at the bottom of the sealed box can be discharged out of the sealed box regularly and quickly, so as to realize rapid maintenance and reduce maintenance costs.

Still further, a pressure gauge is also provided on the pipeline between the water pump and the shower head.

It can be seen from the above scheme that the pressure in the water pipe can be known in real time through the pressure gauge. When the water pressure is not enough, the pressure can be quickly adjusted to stabilize the pressure of the water mist sprayed by the sprinkler head and ensure the dust removal effect.

In addition, the surface of the control panel is also provided with a touch screen, a switch, an emergency stop button and a buzzer.

The above scheme shows that the touch screen can realize the control and setting of the entire system parameters, the buzzer can be used to send an alarm when a dangerous situation occurs, and the emergency stop button can realize a quick shutdown to prevent the accident from worsening.

Description of drawings

Fig. 1 is a simplified structural representation of the utility model.

detailed description

As shown in Figure 1, the utility model includes a sealed box 3 provided with an air inlet 1 and an air outlet 2, and several upper blocking plates 4 and several lower blocking plates 5 are arranged in the sealed box 3, and several upper blocking plates 5 are provided. Plates 4 and several lower blocking plates 5 are arranged alternately, several upper blocking plates 4 are fixedly arranged on the inner upper side of the sealing box 3, and several lower blocking plates 5 are fixedly arranged on the sealing box 3 There is a gap between the lower end of the upper blocking plate 4 and the inner bottom surface of the sealed box 3 to form a lower air passage 6, and the upper end of the lower blocking plate 5 and the inner surface of the sealed box 3 There is a gap between the top surfaces and an upper air passage 7 is formed, and several shower heads 8 are evenly distributed on both sides of some of the upper baffle plates 4 and some of the lower baffle plates 5, and the shower heads 8 are connected with the set The water pump 9 on the periphery of the sealed box 3 communicates with and is supplied with water by the water pump 9 . The inner bottom of the sealed box 3 constitutes a connected sedimentation tank. An exhaust fan 10 is arranged at the air outlet 2 , and filter screens 11 are arranged at all the lower air passages 6 and the upper air passages 7 . A pressure gauge 17 is also arranged on the pipeline between the water pump 9 and the shower head 8 .

A control panel 12 is arranged on the periphery of the sealed box 3 , and a CPU is arranged in the control panel 12 . The surface of the control panel 12 is also provided with a touch screen 18 , a switch 19 , an emergency stop button 20 and a buzzer 21 . A dust sensor 13 is arranged at the air inlet 1, and the dust sensor 13, the water pump 9 and the exhaust fan 10 are all connected to the CPU signal. A liquid level controller 14 is arranged on the inner bottom of the sealed box 3, and the liquid level controller 14 is a mechanical ball valve liquid level controller, and a water collection tank 15 is arranged on the periphery of the sealed box 3. The water collection tank 15 communicates with the liquid level controller 14 through a water pipe, and the water collection tank 15 is also connected with a water source, and the water collection tank 15 is also provided with a water supply pipe to supply water to the water pump 9 . A pressure sensor is also arranged in the sealed box 3, and the pressure sensor is connected to the CPU for signals.

A normally closed sewage outlet 16 is also provided at the bottom of the sealed box 3 . The normally closed sewage outlet 16 is in a closed state at ordinary times, and is opened only when the sludge deposited in the bottom of the sealed box 3 needs to be discharged.

The working process of the present utility model is as follows: since the outside of the air inlet is connected with the atmosphere in the production workshop, when a large amount of dust is generated in the production workshop and spreads to the air inlet and is sensed by the dust sensor 13, the control panel 12 The CPU controls the exhaust fan 10 and the water pump 9 to turn on, and the dust in the workshop is sucked into the spray channel formed by the upper baffle plate 4, the lower baffle plate 5 and the wall of the sealed box 3 and is sprayed by the spray head 8. The mist adheres and falls to the bottom of the airtight box 3 under the action of gravity. Simultaneously, the filter screen 11 that is arranged at the lower ventilation channel 6 and the upper ventilation channel 7 places further filters. Finally clean air is drawn out from the air outlet. Arranging the exhaust fan at the air outlet can avoid the generation of electrostatically charged dust due to the arrangement of the exhaust fan at the air inlet.

The utility model has simple structure and good dust removal effect.

The utility model can be applied to the field of environmental protection.

Claims (7)

1. A negative pressure water spray dust removal system, characterized in that it includes a sealed box (3) provided with an air inlet (1) and an air outlet (2), and the sealed box (3) is provided with Several upper blocking plates (4) and several lower blocking plates (5), several upper blocking plates (4) and several lower blocking plates (5) are arranged alternately, and several upper blocking plates (4) are fixedly arranged On the inner upper side of the sealing box (3), several lower blocking plates (5) are fixedly arranged on the inner lower side of the sealing box (3), and the lower end of the upper blocking plate (4) is connected to There is a gap between the inner bottom surface of the sealing box (3) and forms a lower ventilation channel (6), and there is a gap between the upper end of the lower blocking plate (5) and the inner top surface of the sealing box (3). An upper ventilation channel (7) is formed, and several spray heads (8) are evenly distributed on the two sides of several of the upper baffle plates (4) and some of the lower baffle plates (5), and the spray heads (8) ) is in communication with the water pump (9) arranged on the periphery of the sealed box (3) and is supplied with water by the water pump (9), and an exhaust fan (10) is arranged at the air outlet (2). Filter screens (11) are provided at the air duct (6) and the upper air duct (7). 2. The negative pressure water spray dust removal system according to claim 1, characterized in that: a control panel (12) is arranged on the periphery of the sealed box (3), and a control panel (12) is arranged inside the control panel (12). The CPU is provided with a dust sensor (13) at the air inlet (1), and the dust sensor (13), the water pump (9) and the exhaust fan (10) are all signal-connected to the CPU. 3. The negative pressure water spray dust removal system according to claim 2, characterized in that: a liquid level controller (14) is provided on the inner bottom of the sealed box (3), and the liquid level controller (14) is a mechanical ball valve liquid level controller, and a water collection tank (15) is arranged on the periphery of the sealed box (3), and the passage between the water collection tank (15) and the liquid level controller (14) The water pipe is connected, and the water collecting tank (15) is also connected with a water source, and the water collecting tank (15) is also provided with a water supply pipe to supply water to the water pump (9). 4. The negative pressure water spray dust removal system according to claim 2, characterized in that: a pressure sensor is also arranged in the sealed box (3), and the pressure sensor is connected to the CPU signal. 5. The negative pressure water spray dust removal system according to claim 3, characterized in that: a normally closed sewage outlet (16) is also provided at the bottom of the sealed box (3). 6. The negative pressure water spray dust removal system according to claim 3, characterized in that: a pressure gauge (17) is also arranged on the pipeline between the water pump (9) and the spray head (8) ). 7. The negative pressure water spray dust removal system according to claim 2, characterized in that: the surface of the control panel (12) is also provided with a touch screen (18), a switch (19), and an emergency stop button (20) and buzzer (21).