CN203719005U - Novel kitchen air conditioner - Google Patents

Abstract

The utility model discloses a novel kitchen air conditioner, which comprises a stove, a range hood, a blower connected by pipes, a make-up fan and a dew point indirect evaporative cooler; The branch is: the self-supply fan is connected to the dry channel of the dew point indirect evaporative cooler, and the other branch is: the self-supply fan is connected to the supplementary fan, and the two branch roads are respectively equipped with valve control devices; the supplementary fan is set on the stove The bottom of the table, the supplementary fan is provided with a supplementary air port connected to the stove top, the supplementary air port is aligned with the suction port of the smoke exhaust hood; the dew point indirect evaporative cooler is set on the smoke exhaust in the hood. The utility model combines the special functional structure of the residential kitchen, combines the dew point indirect evaporative cooler with the kitchen exhaust hood and the stove to introduce cooled outdoor fresh air, solves the air quality and thermal environment of the kitchen at the same time, and improves the working environment of personnel.

Description

A new type of kitchen air conditioner

technical field

The utility model belongs to the technical field of air conditioning, and in particular relates to a combination of a dew point indirect evaporative cooler, a kitchen exhaust hood and a cooktop, which introduces cooled outdoor fresh air and improves the working environment of residential kitchen staff.

Background technique

At present, the problems existing in Chinese residential kitchens mainly include poor indoor air quality and harsh thermal environment in the kitchen. Frying, frying, cooking, and deep-frying account for a large proportion of Chinese eating habits, resulting in a large amount of oil fume and fuel exhaust, which will have a great impact on human health if they cannot be discharged in time. In summer, the temperature in residents' kitchens can sometimes be as high as 40°C, which is far from meeting the thermal comfort requirements of personnel.

At present, the main way to remove kitchen pollutants in urban residential kitchens is to set up range hoods to control the emission of oil fumes through exhaust ducts. Although the kitchen range hood can discharge a certain amount of polluted gas, it cannot achieve the ideal indoor air quality. Sufficient outdoor fresh air should also be supplemented. However, among the existing kitchen equipment in the market, there is no equipment that can simultaneously introduce fresh air and discharge smoke.

For kitchen refrigeration products, kitchen air conditioners in the prior art generally consist of an indoor unit and an outdoor unit. In the actual use process, there are the following defects: because a large amount of stuffy air and cooking fume are always circulating in the indoor unit and the kitchen, the cooking fume is easy to adhere to the air conditioner filter screen and the surface of the indoor heat exchanger after long-term use , the efficiency will be worse after a period of use, and even blockage will occur. At the same time, the product has a single function but the price is too high. And considering the narrow space of the kitchen, the product installation is complicated, takes up a lot of space, and affects the use.

Utility model content

The utility model provides a new type of kitchen air conditioner, which can solve the technical problem of: overcoming the defects of the prior art above, combined with the special functional structure of the residential kitchen, combining the dew point indirect evaporative cooler with the kitchen exhaust hood and the stove to introduce cooling The final outdoor fresh air can solve the air quality and thermal environment of the kitchen at the same time, and improve the working environment of personnel.

The technical scheme adopted by the utility model to solve the technical problem is: the new kitchen air conditioner includes a stove and a range hood, and the range hood includes an exhaust fan and a smoke exhaust hood, and also includes a blower fan and a supplementary fan connected by pipelines. and the dew point indirect evaporative cooler; the pipeline is provided with a tee, thus forming two branches, one branch is: the dry channel connecting the self-supply fan to the dew point indirect evaporative cooler, and the other branch is: the self-supply fan is connected to the A supplementary fan, valve control devices are respectively provided on the two branch roads; the supplementary fan is arranged at the bottom of the stove, and the supplementary fan is provided with a supplementary air port connected to the stove top, and the supplementary air port is connected to the The suction port of the exhaust hood is aligned; the dew point indirect evaporative cooler is arranged in the exhaust hood, and the dew point indirect evaporative cooler is provided with an air supply port for primary air and an air exhaust port for secondary air, The air outlet of the primary air passes through the exhaust hood and leads to the room, and the air outlet of the secondary air passes through the exhaust hood and leads to the outside.

The dew point indirect evaporative cooler installed in the exhaust hood in the utility model is a new type of indirect evaporative cooling equipment at present. It is an environmentally friendly, efficient and economical cooling method to obtain cooling capacity by exchanging heat and moisture between rooms. The cooler includes a plate cooling core and a water supply and distribution device. The plate-type cooling core is formed by stacking more than one cooling unit body side by side in turn, and each cooling unit body includes two side-by-side parallel airflow channels. The channels are separated by folded corrugated heat exchange partitions, and the partitions are made of plastic sheets with high thermal conductivity. One side of the separator is rough and coated with a hydrophilic substance, and the other side is made into a smooth surface without treatment. When arranging, the rough surface is opposite to the rough surface, and the smooth surface is opposite to the smooth surface. A primary air passage is formed between the relatively arranged smooth surfaces, and a secondary air passage is formed between the relatively arranged rough surfaces. The partitions are tightly arranged between the partitions. A baffle is arranged on the heat exchange partition between the primary air channel and the secondary air channel, and the opening range of the baffle can be adjusted through an automatic control valve. In the absence of compressors and refrigerants, the air cooled by the dew point indirect evaporative cooler can theoretically reach the dew point temperature of the intake air. Compared with the traditional indirect evaporative cooler, which can only reach the wet bulb temperature of the intake air at most, it greatly reduces the supply air temperature without increasing the moisture content of the output air. The evaporative cooling process adopts fresh air, and the air quality is good. Since only the fan consumes energy during operation, it saves a lot of power consumption compared with ordinary household split air conditioners. The spray water in the dew point indirect evaporative cooler is tap water. The amount of spray water is generally very small, and can be recycled without causing waste. Moreover, tap water itself has a certain pressure, and the cost of installing a water pump can also be saved, making it more compact and saving electricity.

The function of the utility model is to provide fresh air in the kitchen by sending the fresh air through the air supply port on the stove at a certain speed to form an upward air curtain to provide fresh air for the kitchen and block the pot mouth at the same time. Diffusion of polluting gases such as cooking fumes. A ball valve is installed in the supplementary air port, which can adjust the airflow direction and airflow speed. The airflow is ejected from the supplementary air port, and it cooperates with the suction airflow of the range hood above to control the oil fume and introduce fresh air at the same time, improving the air quality in the kitchen.

Compared with the prior art, the beneficial effects of the utility model are:

(1) By introducing outdoor fresh air, the air quality of the kitchen is improved. The dew point indirect evaporative cooler installed in the exhaust hood is a new type of indirect evaporative cooling equipment, which can make full use of the difference between the dry bulb temperature and the dew point temperature in the natural ambient air, through the heat and moisture exchange between water and air for cooling. Without the use of compressors and refrigerants, the cooled air can theoretically reach the dew point temperature of the intake air. As a result, part of the fresh air is directly sent to the (indoor) human activity area after being cooled, and the local thermal comfort of the human body is improved. The function of the air supply hole installed on the cooktop is to form an upward air curtain by sending fresh air at a certain speed to provide fresh air in the kitchen while preventing the diffusion of polluting gases such as oil fume generated by the pot mouth. Therefore, it is possible to improve the thermal comfort of the kitchen staff while improving the indoor air quality.

(2) During operation, only the range hood, supply fan and make-up fan consume energy, and the entire kitchen air-conditioning system has a remarkable energy-saving effect.

(3) The utility model has a simple structure and is combined with commonly used equipment in the kitchen without occupying extra space.

Description of drawings

Fig. 1 is a layout schematic diagram of the utility model kitchen air conditioner;

Fig. 2 is the schematic diagram of the fresh air treatment process realized by the kitchen air conditioner in the utility model;

Fig. 3 is a schematic plan view of the dew point indirect evaporative cooler in the utility model;

Fig. 4 is a three-dimensional structural schematic diagram of the dew point indirect evaporative cooler in the utility model.

In the figure: 1-outdoor fresh air, 2-supply fan, 3-supply air, 4-primary air, 5-secondary air, 6-exhaust hood, 7-dew point indirect evaporative cooler, 8-supplementary fan, 9-stove Taiwan, 10-air supply port, 11-suction port, 12-exhaust fan, 13, 14-valve control device, 15-cooler baffle, 16-dry channel, 17-wet channel, 18-channel heat exchange barrier plate.

Detailed ways

The technical scheme of the utility model will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

As shown in Figures 1 and 2, a novel kitchen air conditioner of the utility model includes a stove 9 and a range hood, and the range hood includes an exhaust fan 12 and a smoke exhaust hood 6, and also includes a blower 2 connected by pipelines. , make-up fan 8 and dew point indirect evaporative cooler 7; the pipeline is provided with a tee, thereby forming two branches, one branch is: the dry passage connected from the blower 2 to the dew point indirect evaporative cooler 7, and the other branch The road is: the self-supply fan 2 is connected to the supplementary fan 8, and valve control devices are respectively provided on the two branches; the supplementary fan 8 is arranged at the bottom of the stove 9, and the supplementary fan 8 is connected to the stove top The supplementary air port 10 on the top, the supplementary air port 10 is aligned with the suction port 11 of the exhaust hood 6; the dew point indirect evaporative cooler 7 is arranged in the exhaust hood 6; the dew point indirect evaporative cooling The device 7 is provided with an air outlet for the primary air and an air outlet for the secondary air. The air outlet for the primary air passes through the exhaust hood 6 and leads to the room, and the air outlet for the secondary air passes through the smoke exhaust The cover 6 is discharged to the outside, that is, the primary air 4 passes through the smoke exhaust hood 6 and leads to the room, and the secondary air 5 is discharged to the outside.

It can be seen from FIG. 1 that the dew point indirect evaporative cooler 7 is installed in the smoke exhaust hood 6 , and an air supply port 10 is provided on the table of the stove 9 . First, fresh air 1 is introduced from the outside by a pipe, and after passing through the blower 2, it is divided into two branches. A part of the fresh air is blown out by the supplementary air port 11 above the stove 9 after passing through the supplementary blower 8 at the bottom of the stove 9 to form an upward air-supply air curtain, which can effectively isolate heat radiation and harmful gases. The supplementary air from the supplementary air outlet 10 on the stove 9 and the cooking fumes are exhausted to the outside by the exhaust fan 12 after passing through the suction port 11 of the range hood. Another part of the fresh air passes through the dew point indirect evaporative cooler 7 installed in the exhaust hood 6, and the temperature is lowered, and the low-temperature primary air 4 is sent through the exhaust hood 6 and sent into the human body activity area to improve thermal comfort. The distribution ratio of the two parts of fresh air can be controlled at about 1:1 by the valve control devices 13 and 14 arranged on the two branches.

Since the temperature and humidity of the outdoor air change at any time, and the requirements for the air supply temperature are different at different times, the operation of the dew point indirect evaporative cooler 7 can be adjusted by changing the ratio of the primary air 4 and the secondary air 5 Efficiency, so that the primary air 4 sent into the room can be changed within a set value. There is usually a baffle 15 between the dry passage 16 and the wet passage 17. When the outdoor temperature is high, the opening of the baffle 15 increases, and more air supply 3 enters the wet passage 17 as secondary air 5. , The heat exchange between the secondary air increases, and the cooling effect of the primary air 4 is better. When the outdoor temperature is low, the opening of the baffle plate 15 is reduced, the ratio of primary and secondary air increases, and more primary air 4 is sent into the room. Usually, the temperature of the air supply entering the room can be set between 22 and 25°C, because setting the appropriate air supply temperature can blow the air to the head of the human body in the way of upward air supply without causing discomfort to the human body.

The kitchen air conditioner of the utility model can be provided with several different operating modes through the valve control devices 13 and 14 installed on each air supply branch road. Such as one of the following situations:

When people are cooking, the exhaust fan 12 is turned on, and the blower fan 2 is started at the same time, and part of the fresh air is sent through the supplementary fan 8 from the supplementary air outlet 10 on the table top of the stove 9, forming an upward air curtain, which can effectively reduce the diffusion of pollutants such as smoking . Another part of the air supply 3 is cooled by the dew point indirect evaporative cooler 7 and then passes through the exhaust hood 6 to send the low-temperature primary air 4 into the indoor human body work area, thereby reducing the indoor temperature.

When the smoke exhaust hood 6 is closed, but there are still people in the kitchen, the valve control device 13 on the branch road from the supply fan 2 to the supplementary fan 8 can be closed, that is, the supplementary air passage is closed, and only the supply air 3 enters the dew point indirectly. evaporative cooler 7,

After cooling, some of them are sent indoors to reduce the temperature in the kitchen.

When the kitchen air conditioner is not needed, the valve control device 14 on the branch road from the blower 2 to the dew point indirect evaporative cooler 7 can also be closed separately, that is, the fresh air cooling channel is closed, and only part of the fresh air enters the room through the supplementary air outlet 10 , thus improving the air quality in the kitchen.

The size of the fresh air volume in the utility model is determined by the number of times of ventilation in the kitchen and the indoor load. After testing, the wet bulb efficiency of the dew point indirect evaporative cooler in the utility model reaches 120%, the dew point efficiency reaches 82%, and the COP of the whole air conditioning system reaches 8.9.

In the utility model, through the dew point indirect evaporative cooler 7 installed in the smoke exhaust hood 6, the air with a lower temperature enters the room, thereby reducing the temperature of the human body working area in the kitchen.

Although the utility model has been described above in conjunction with the accompanying drawings, the utility model is not limited to the above-mentioned specific embodiments, and the above-mentioned specific embodiments are only illustrative, rather than restrictive. Under the enlightenment of the utility model, many deformations can be made without departing from the purpose of the utility model, and these all belong to the protection of the utility model.

Claims (2)

1. A new type of kitchen air conditioner, comprising a stove (9) and a range hood, the range hood comprising an exhaust fan (12) and a smoke exhaust hood (6), characterized in that, It also includes a blower fan (2), a make-up fan (8) and a dew point indirect evaporative cooler (7) connected by pipelines; the pipeline is provided with a tee, thereby forming two branches, one branch is: a self-supply fan (2 ) is connected to the dry passage of the dew point indirect evaporative cooler (7), and the other branch is: the self-supply fan (2) is connected to the make-up fan (8); the two branches are respectively equipped with valve control devices; The supplementary air blower (8) is arranged at the bottom of the stove (9), and the supplementary air blower (8) is provided with a supplementary air port (10) connected to the top of the stove top, and the supplementary air port (10) is connected to the The suction port (11) of the exhaust hood (6) is aligned; The dew point indirect evaporative cooler (7) is arranged in the exhaust hood (6), and the dew point indirect evaporative cooler (7) is provided with an air supply port for primary air and an air exhaust port for secondary air, so The air outlet of the primary air passes through the exhaust hood (6) and leads to the room, and the outlet of the secondary air passes through the exhaust hood (6) and discharges to the outside. 2. A new type of kitchen air conditioner according to claim 1, characterized in that the air supply port (10) is equipped with a ball valve for adjusting the airflow direction and airflow velocity.