CN105034919A - Dining car purifying air by utilizing directed constant pressure difference - Google Patents

Abstract

The invention relates to a dining car which utilizes directional constant pressure difference to realize air purification, which is used to solve the air pollution in the dining car to the outside and dining rooms caused by cooking exhaust in the kitchen. The dining car of the present invention includes a front and a body, and the body is equipped with a purification system, a ventilation system and an automatic pressure difference control system. The purification system is composed of small-diameter filters and large-diameter filters; the ventilation system is composed of static pressure chambers, main air ducts and branch air ducts; the automatic differential pressure control system is composed of differential pressure gauges, valve switches, control panels and fans. composition. The invention relates to a dining car that uses directional constant pressure difference to realize air purification, which can perform double filtration and purification on the gas discharged during cooking and the air entering the dining car from the outside, effectively preventing the dining car from polluting the outside air and the outside air from affecting the air inside the dining car. pollution.

Description

A Dining Cart Using Directional Constant Pressure Difference to Purify Air

technical field

The invention relates to a dining car, in particular to a dining car which utilizes directional constant pressure difference to realize air purification.

Background technique

Mobile food trucks are becoming popular and fashionable, whether in urban areas or in the wild, food trucks can provide consumers with a convenient multi-person dining space. However, while the dining car brings convenience and fashion, there are also some problems. On the one hand, when cooking in the dining car, the polluting gas generated by cooking will be discharged, causing air pollution problems; The polluted air around the road can enter the car without purification. In a document titled Seasonal Trends of Concentration and Size Distribution of Ultrafine Particles Near Major Highways in Los Angeles in the Aerosol Science and Technology journal, it is pointed out that whether in summer or winter, when the traffic volume is large, the ultrafine particles (≤0.1 μm) on the road are significantly higher than when there are no cars on the road. Ultrafine particulate matter is considered to be a possible important inducing factor in the positive correlation between particulate matter and mortality and morbidity. When the dining car is driving on the road, there is a negative pressure state or when the door of the dining car is opened and closed, the external polluted gas will enter the car and cause air pollution in the restaurant, which cannot create a good dining environment for the dining guests.

Contents of the invention

The technical problem to be solved by the present invention is to make up for the deficiencies of the above-mentioned existing dining car, and provide a dining car that utilizes directional constant pressure difference to realize air purification.

For reaching above-mentioned technical requirement, the scheme that the present invention takes is:

A dining car that uses directional constant pressure difference to realize air purification. The dining car includes a front and a body. The body is equipped with a purification system, a ventilation system and an automatic pressure difference control system, wherein:

The purification system is composed of a small-diameter filter 3, a first large-diameter filter 9-1 and a second large-diameter filter 9-2;

The ventilation system consists of the first plenum 1-1, the second plenum 1-2, the third plenum 1-3, the fourth plenum 1-4, the fifth plenum 1-5, the sixth Static pressure chamber 1-6, seventh static pressure chamber 1-7, first main air duct 2-1, second main air duct 2-2, third main air duct 2-3, fourth main air duct 2- 4. The fifth main air duct 2-5, the sixth main air duct 2-6 and the seventh main air duct 2-7;

The automatic differential pressure control system is composed of a first differential pressure gauge 6-1, a second differential pressure gauge 6-2, a valve switch 7, a control panel 8, a first fan 5-1 and a second fan 5-2;

The body is divided into a kitchen and a dining room. The first static pressure chamber 1-1 and the third static pressure chamber 1-3 are arranged on both sides of the top of the kitchen, and the second static pressure chamber 1-2 and the fourth static pressure chamber are arranged at the front and rear. Chamber 1-4, the first static pressure chamber 1-1 is connected to the first fan 5-1 through the first main air duct 2-1, and the second static pressure chamber 1-2 is connected to the first air fan 5-1 through the second main air duct 2-2. The fan 5-1 and the third static pressure chamber 1-3 are connected to the first fan 5-1 through the third main air duct 2-3; the fifth static pressure chamber 1-5 and the seventh static pressure chamber are arranged on both sides of the restaurant 1-7, a sixth static pressure chamber 1-6 is arranged at one end of the restaurant, the fifth static pressure chamber 1-5 is connected to the second fan 5-2 through the fifth main air duct 2-5, and the seventh static pressure chamber 1-7 is connected to the second fan 5-2 through the seventh main air duct 2-7, the sixth static pressure chamber 1-6 is connected to the second fan 5-2 through the sixth main air duct 2-6, and the fourth static pressure chamber 1-4 is connected to the second fan 5-2 through the fourth main air pipe 2-4; the first static pressure chamber 1-1, the second static pressure chamber 1-2, the third static pressure chamber 1-3, and the fourth static pressure chamber The pressure chamber 1-4, the fifth static pressure chamber 1-5, the sixth static pressure chamber 1-6 and the seventh static pressure chamber 1-7 are all equipped with branch air ducts 4, and the branch air ducts 4 are provided with Small-diameter filter 3, the first fan 5-1 is provided with a first large-diameter filter 9-1, and the second fan 5-2 is provided with a second large-diameter filter 9-2 , one end of the first differential pressure gauge 6-1 stretches into the kitchen, one end of the second differential pressure gauge 6-2 stretches into the dining room; the second main air duct 2-4 is provided with a valve switch 7, and the first differential pressure gauge 6 -1, the second differential pressure gauge 6-2, the valve switch 7, the first fan 5-1 and the second fan 5-2 are respectively connected to the control panel; the control panel 8 is used to set the needs between the kitchen and the dining room and the dining room and the outside world The automatic differential pressure control system will adjust the speed of the first fan 5-1, the second fan 5-2 and the valve switch 7 through the first differential pressure gauge 6-1 and the second differential pressure gauge 6-2. The degree of closure keeps the pressure difference between the kitchen and the restaurant and between the restaurant and the outside at the set value, achieving the effect of directional air circulation.

In the present invention, the exhaust port and the air inlet pipe where the first blower fan 5-1 and the second blower fan 5-2 are located are 10 cm beyond the top of the vehicle body.

In the present invention, when the air flows in a directional manner, the polluted gas discharged during cooking in the kitchen will first enter the first static pressure chamber 1-1, the second static pressure chamber 1-2 and the third static pressure chamber through the small-diameter filter 3 1-3, and then enter the external atmosphere through the first large-diameter filter 9-1, and at the same time, the external air enters the fourth static pressure chamber 1-4 and the fifth static pressure chamber 1 through the second large-diameter filter 9-2 -5, the sixth static pressure chamber 1-6 and the seventh static pressure chamber 1-7, and then enter the dining room and kitchen through the small diameter filter 3, effectively avoiding the kitchen cooking gas discharge to the outside world and indirectly to the restaurant room air pollution.

In the present invention, the pressure difference range between the kitchen and the dining room and between the restaurant and the outside world is adjusted between -200 and 200 Pa; the speed controllable range of the first fan 5-1 and the second fan 5-2 is 1-1000r/min; The automatic adjustment range of the closing degree of the valve switch 7 and the pipeline is between 1-100%.

In the present invention, the dining car using directional constant pressure difference to realize air purification, the first differential pressure gauge 6-1, the second differential pressure gauge 6-2, the valve switch 7, the control panel 8 and the first blower fan 5 -1. Both the second air blower 5-2 are automatically controlled.

The invention relates to a dining car that utilizes directional constant pressure difference to realize air purification. Compared with the existing commonly used dining car, its characteristics and advantages are as follows:

(1) The present invention relates to a dining car that uses directional constant pressure difference to realize air purification. It uses automatic control to generate pressure differences between the kitchen and the restaurant, and between the restaurant and the outside world, so as to achieve the effect of directional air circulation and avoid the free flow of air to the outside world during cooking. Spread unpurified polluted gas and indirectly cause air pollution between restaurants.

(2) The present invention relates to a dining car that uses directional constant pressure difference to realize air purification. It can perform double filtration and purification on the gas discharged during cooking and the air entering the dining car from the outside, effectively preventing the dining car from polluting the outside air and the outside air from affecting the environment. Pollution of the air inside the dining car.

(3) The invention relates to a dining car that uses directional constant pressure difference to achieve air purification. The ventilation system is omnidirectional, and the constant pressure difference is realized through automation. When the door is opened or closed or the car body is damaged, the degree of sealing will When weakening, the dining car can still be automatically adjusted to the set value to keep the pressure difference constant.

(4) The dining car of the present invention uses directional constant pressure difference to realize air purification, which is easy to clean, only needs to replace the filter membrane of the filter in the purification system, and does not require frequent large-scale cleaning.

Description of drawings

Fig. 1 is a schematic structural diagram of a top view of a dining car utilizing directional constant pressure difference to realize air purification according to the present invention;

Fig. 2 is a side view structure schematic diagram of a dining car utilizing directional constant pressure difference to realize air purification according to the present invention.

Labels in the figure: 1-1, 1-2, 1-3, 1-4, 1-5, 1-6, 1-7 are respectively the first, second, third, fourth, fifth, sixth And the seventh static pressure chamber, 2-1, 2-2, 2-3, 2-4, 2-5, 2-6, 2-7 are respectively the first, second, third, fourth, fifth , the sixth and seventh main air ducts, 3 is a small-diameter filter, 4 is a branch air duct, 5-1, 5-2 are respectively the first fan and the second fan, 6-1, 6-2 are respectively The first and second differential pressure gauges, 7 are valve switches, 8 are control panels, and 9-1 and 9-2 are respectively the first and second large-diameter filters.

Detailed ways

The present invention will be further described in detail below in conjunction with accompanying drawings 1 and 2 and specific examples completed by the inventor according to the technical solution of the present invention.

Embodiment 1: As shown in accompanying drawing 1 and accompanying drawing 2, a dining car utilizing directional constant pressure difference to realize air purification, its structure includes: 1-1, 1-2, 1-3, 1-4, 1- 5, 1-6, 1-7 are respectively the first, second, third, fourth, fifth, sixth and seventh static pressure chambers, 2-1, 2-2, 2-3, 2-4 , 2-5, 2-6, 2-7 are respectively the first, second, third, fourth, fifth, sixth and seventh main air ducts, 3 is a small diameter filter, 4 is a branch air 5-1, 5-2 are the first fan and the second fan, 6-1, 6-2 are the first and second differential pressure gauges respectively, 7 is the valve switch, 8 is the control panel, 9-1, 9-2 is respectively the first and second largest diameter filters. The first, second and third static pressure chambers 1-1, 1-2 and 1-3 are respectively connected to the first Fan 5-1; the fourth, fifth, sixth and seventh static pressure chambers 1-4, 1-5, 1-6 and 1-7 pass through the fourth, fifth, sixth and seventh main air ducts respectively 2-4, 2-5, 2-6 and 2-7 are connected to the second fan 5-2; the first static pressure chamber 1-1, the second static pressure chamber 1-2, the third static pressure chamber 1-3, The fourth static pressure chamber 1-4, the fifth static pressure chamber 1-5, the sixth static pressure chamber 1-6 and the seventh static pressure chamber 1-7 are all equipped with branch air ducts 4, and the branch air ducts 4 The first fan 5-1 is provided with a small-diameter filter 3, the first fan 5-1 is provided with a first large-diameter filter 9-1, and the second fan 5-2 is provided with a second large-diameter filter 9-2, one end of the first differential pressure gauge 6-1 stretches into the kitchen, and one end of the second differential pressure gauge 6-2 stretches into the restaurant; the second main air duct 2-4 is provided with a valve switch 7, the first pressure differential The differential gauge 6-1, the second differential pressure gauge 6-2, the valve switch 7, the first fan 5-1 and the second fan 5-2 are respectively connected to the control panel.

In order to avoid air pollution to the outside world and between restaurants when cooking in the dining car. First turn on the switch of the control panel 8, set the pressure difference between the kitchen and the dining room to be 5Pa (the kitchen is lower than the dining room), and the pressure difference between the dining room and the outside world to be 5Pa (the restaurant is higher than the outside world). After the parameters are set, the system will automatically adjust the rotation speed of the first fan 5-1 and the second fan 5-2 and the closing degree of the valve switch 7, so that the pressure difference reaches the set value, so that the kitchen and dining room, dining room, etc. The pressure difference between the room and the outside world is maintained at the set pressure difference to achieve the effect of directional air circulation. When the air flows in a directional manner, the polluted gas discharged during cooking in the kitchen will first enter the first static pressure chamber 1-1, the second static pressure chamber 1-2, and the third static pressure chamber 1-3 through the small-diameter filter 3, Then enter the external atmosphere through the first large-diameter filter 9-1, and at the same time, the external air enters the fourth static pressure chamber 1-4, the fifth static pressure chamber 1-5, and the second large-diameter filter 9-2 through the second large-diameter filter 9-2. The six static pressure chambers 1-6, the seventh static pressure chamber 1-7, and then enter the dining room and kitchen through the small-diameter filter 3, effectively avoiding the air generated by the kitchen cooking gas to the outside world and indirectly to the dining room. pollute. At the same time, through the small-diameter filter 3, the first large-diameter filter 9-1, and the second large-diameter filter 9-2, the gas discharged during cooking and the gas entering from the outside have been double-filtered to create a dining car. Good air environment.

Embodiment 2: As shown in accompanying drawing 1 and accompanying drawing 2, a dining car utilizing directional constant pressure difference to realize air purification, its structure includes: 1-1, 1-2, 1-3, 1-4, 1- 5, 1-6, 1-7 are respectively the first, second, third, fourth, fifth, sixth and seventh static pressure chambers, 2-1, 2-2, 2-3, 2-4 , 2-5, 2-6, 2-7 are respectively the first, second, third, fourth, fifth, sixth and seventh main air ducts, 3 is a small diameter filter, 4 is a branch air 5-1, 5-2 are the first fan and the second fan, 6-1, 6-2 are the first and second differential pressure gauges respectively, 7 is the valve switch, 8 is the control panel, 9-1, 9-2 is respectively the first and second largest diameter filters. The first, second and third static pressure chambers 1-1, 1-2 and 1-3 are respectively connected to the first Fan 5-1; the fourth, fifth, sixth and seventh static pressure chambers 1-4, 1-5, 1-6 and 1-7 pass through the fourth, fifth, sixth and seventh main air ducts respectively 2-4, 2-5, 2-6 and 2-7 are connected to the second fan 5-2; the first static pressure chamber 1-1, the second static pressure chamber 1-2, the third static pressure chamber 1-3, The fourth static pressure chamber 1-4, the fifth static pressure chamber 1-5, the sixth static pressure chamber 1-6 and the seventh static pressure chamber 1-7 are all equipped with branch air ducts 4, and the branch air ducts 4 The first fan 5-1 is provided with a small-diameter filter 3, the first fan 5-1 is provided with a first large-diameter filter 9-1, and the second fan 5-2 is provided with a second large-diameter filter 9-2, one end of the first differential pressure gauge 6-1 stretches into the kitchen, and one end of the second differential pressure gauge 6-2 stretches into the restaurant; the second main air duct 2-4 is provided with a valve switch 7, the first pressure differential The differential gauge 6-1, the second differential pressure gauge 6-2, the valve switch 7, the first fan 5-1 and the second fan 5-2 are respectively connected to the control panel.

In order to avoid the pressure change inside the dining car when the door is opened and closed, the external polluted gas will enter. First turn on the switch of the control panel 8, set the pressure difference between the kitchen and the dining room to be 5Pa (the kitchen is lower than the dining room), and the pressure difference between the dining room and the outside world to be 5Pa (the restaurant is higher than the outside world). After the parameters are set, the system will automatically adjust the rotation speed of the first fan 5-1 and the second fan 5-2 and the closing degree of the valve switch 7, so that the pressure difference reaches the set value, so that the kitchen and dining room, dining room, etc. The pressure difference between the room and the outside world is maintained at the set pressure difference to achieve the effect of directional air circulation. When the air flows in a directional manner, the polluted gas discharged during cooking in the kitchen will first enter the first static pressure chamber 1-1, the second static pressure chamber 1-2, and the third static pressure chamber 1-3 through the small-diameter filter 3, Then enter the external atmosphere through the first large-diameter filter 9-1, and at the same time, the external air enters the fourth static pressure chamber 1-4, the fifth static pressure chamber 1-5, and the second large-diameter filter 9-2 through the second large-diameter filter 9-2. The six static pressure chambers 1-6, the seventh static pressure chamber 1-7, and then enter the dining room and kitchen through the small-diameter filter 3, effectively avoiding the air generated by the kitchen cooking gas to the outside world and indirectly to the dining room. pollute. At the same time, through the small-diameter filter 3, the first large-diameter filter 9-1, and the second large-diameter filter 9-2, the gas discharged during cooking and the gas entering from the outside have been double-filtered to create a dining car. Good air environment.

Claims (4)

1. A dining car utilizing directional constant pressure difference to realize air purification, said dining car comprising a headstock and a vehicle body, said vehicle body being provided with purification system, ventilation system and automatic differential pressure control system, characterized in that: The purification system is composed of a small-diameter filter (3), a first large-diameter filter (9-1) and a second large-diameter filter (9-2); The ventilation system consists of the first static pressure chamber (1-1), the second static pressure chamber (1-2), the third static pressure chamber (1-3), the fourth static pressure chamber (1-4), the fifth static pressure chamber Pressure chamber (1-5), sixth static pressure chamber (1-6), seventh static pressure chamber (1-7), first main air duct (2-1), second main air duct (2-2 ), the third main air duct (2-3), the fourth main air duct (2-4), the fifth main air duct (2-5), the sixth main air duct (2-6) and the seventh main air duct Tube (2-7) composition; The automatic differential pressure control system consists of a first differential pressure gauge (6-1), a second differential pressure gauge (6-2), a valve switch (7), a control panel (8), a first blower fan (5-1) and a second pressure differential gauge (6-2). Two fans (5-2) are formed; The vehicle body is divided into a kitchen and a dining room. A first static pressure chamber (1-1) and a third static pressure chamber (1-3) are arranged on both sides of the top of the kitchen, and a second static pressure chamber (1-2) is arranged on the front and rear. ) and the fourth static pressure chamber (1-4), the first static pressure chamber (1-1) is connected to the first blower fan (5-1) through the first main air duct (2-1), and the second static pressure chamber ( 1-2) Connect the first fan (5-1) through the second main air duct (2-2), and connect the third static pressure chamber (1-3) to the first fan through the third main air duct (2-3) (5-1); the fifth plenum (1-5) and the seventh plenum (1-7) are arranged on both sides of the restaurant, and the sixth plenum (1-6) is arranged at one end of the restaurant, The fifth static pressure chamber (1-5) is connected to the second fan (5-2) through the fifth main air duct (2-5), and the seventh static pressure chamber (1-7) is connected through the seventh main air duct ( 2-7) Connect the second fan (5-2), the sixth static pressure chamber (1-6) to the second fan (5-2) through the sixth main air duct (2-6), and the fourth static pressure chamber (1-4) Connect the second fan (5-2) through the fourth main air duct (2-4); the first static pressure chamber (1-1), the second static pressure chamber (1-2), the third Static plenum (1-3), fourth plenum (1-4), fifth plenum (1-5), sixth plenum (1-6) and seventh plenum (1- 7) are equipped with a branch air pipe (4), the small diameter filter (3) is provided on the branch air pipe (4), and the first large pipe is provided on the first fan (5-1). diameter filter (9-1), the second fan (5-2) is provided with a second large diameter filter (9-2), and one end of the first differential pressure gauge (6-1) extends into the kitchen , one end of the second differential pressure gauge (6-2) extends into the restaurant; the second main air duct (2-4) is provided with a valve switch (7), the first differential pressure gauge (6-1), the second pressure differential gauge The differential meter (6-2), the valve switch (7), the first fan (5-1) and the second fan (5-2) are connected to the control panel respectively; The pressure difference required by the outside world, the automatic pressure difference control system will adjust the first fan (5-1) and the second fan through the first differential pressure gauge (6-1) and the second differential pressure gauge (6-2). The rotating speed of (5-2) and the closing degree of the valve switch (7) keep the pressure difference between the kitchen and the dining room and between the dining room and the outside at a set value, so as to achieve the effect of directional air circulation. 2. A dining car utilizing directional constant pressure difference to realize air purification according to claim 1, characterized in that the exhaust port where the first blower fan (5-1), the second blower fan (5-2) is located and The air intake duct extends 10cm beyond the roof of the body. 3. A dining car utilizing directional constant pressure difference to realize air purification according to claim 1, characterized in that when the air flows in a directional manner, the polluted gas discharged from cooking in the kitchen will first pass through the small-diameter filter 3 and enter the first The static pressure chamber (1-1), the second static pressure chamber (1-2) and the third static pressure chamber (1-3), then enter the external atmosphere through the first large-diameter filter (9-1), and at the same time Outside air enters the fourth static pressure chamber (1-4), the fifth static pressure chamber (1-5), the sixth static pressure chamber (1-6) and the sixth static pressure chamber through the second largest diameter filter (9-2). The seven static pressure chambers (1-7) then enter the dining room and the kitchen through the small-diameter filter (3), effectively avoiding the air pollution of the kitchen cooking gas discharge to the outside world and indirectly to the dining room. 4. A dining car utilizing directional constant pressure difference to realize air purification according to claim 1, characterized in that the range of pressure difference between the kitchen and the restaurant and between the restaurant and the outside world is adjusted between -200 to 200Pa; the first fan (5 -1), the speed controllable range of the second fan (5-2) is 1-1000r/min; the automatic adjustment range of the closing degree of the valve switch 7 and the pipeline is between 1-100%.