CN110792635B

CN110792635B - Cooling fan and kitchen air conditioning system provided with same

Info

Publication number: CN110792635B
Application number: CN201810874962.8A
Authority: CN
Inventors: 李昂; 傅海峰; 朱启惠; 曹亚裙; 余丙松
Original assignee: Ningbo Fotile Kitchen Ware Co Ltd
Current assignee: Ningbo Fotile Kitchen Ware Co Ltd
Priority date: 2018-08-02
Filing date: 2018-08-02
Publication date: 2021-07-23
Anticipated expiration: 2038-08-02
Also published as: CN110792635A

Abstract

The utility model provides a cooling fan, includes the spiral case and installs the inside impeller in the spiral case, and the impeller is including the blade, its characterized in that: an internal cold carrying channel is formed inside each blade, and a cold carrying agent inlet and a cold carrying agent outlet which are communicated with the internal cold carrying channel are respectively arranged on two sides of each impeller in the axial direction. The kitchen air conditioning system comprises an air conditioning assembly and an oil fume absorption assembly, wherein the second heat exchanger is communicated with a secondary refrigerant inlet and a secondary refrigerant outlet of the heat dissipation fan through an external secondary cooling channel. The invention has the advantages that: this cooling fan is through carrying cold passageway in the inside formation of blade, and the radiating effect is better, in addition, after through carrying cold passageway intercommunication between this kitchen air conditioning system's the second heat exchanger and cooling fan's the blade, the system during operation, the heat dissipation can be concentrated on the impeller with the function of discharging fume, and the heat can be taken away fast to the fan to also do benefit to the heat transfer effect that improves the second heat exchanger, and then improve the air conditioner efficiency.

Description

Cooling fan and kitchen air conditioning system provided with same

Technical Field

The invention relates to a kitchen air conditioning system.

Background

The kitchen is a main place for cooking, the mood of a cooker is directly influenced by the quality of the air environment of the kitchen, and particularly in hot summer, the stuffy environment of the kitchen brings great discomfort to the cooker.

The existing kitchen air conditioner has no big difference from a common air conditioner in basic form, and generally has two forms, namely an internal machine and an external machine split type, namely an external machine is positioned outdoors, an internal machine is positioned indoors, the internal machine and the external machine are respectively provided with a motor fan, the internal machine and the external machine split type kitchen air conditioner are connected in a pipeline mode, holes need to be formed in a wall, decoration is damaged, an external machine needs to be hung outside, the structure is not compact enough, and the whole is not beautiful enough. The other is that the internal machine and the external machine are of an integrated structure, one double-shaft motor can be used, or two motors can be used, the internal machine and the external machine integrated machine usually comprise a mobile air conditioner and a window machine, when the mobile air conditioner is used, a heat dissipation hose needs to be manually connected, and the hose is placed outside a window, so that the use is inconvenient; the window machine needs to be provided with a square hole with a large area on the wall, the window machine can be put in and moved out when not in use, and a square hole is left on the wall, so that the window machine can be plugged by other objects, but is troublesome and damages decoration.

In addition, the kitchen space is limited, and the volume of the kitchen air conditioner cannot be too large, so that the heat dissipation of the kitchen air conditioner has a great problem, and if the heat dissipation of the kitchen air conditioner cannot be carried out in time in the use process of the kitchen air conditioner, the energy efficiency of the air conditioner can be greatly reduced. However, the existing kitchen air conditioner and the range hood work independently, the two can not be linked, and the heat generated by the kitchen air conditioner can not be discharged to the outside through the fan of the range hood, so that how to discharge the heat generated by the kitchen air conditioner through the range hood becomes a problem to be solved urgently.

Disclosure of Invention

The first technical problem to be solved by the present invention is to provide a heat dissipation fan with a simple structure and a good heat dissipation effect, aiming at the current situation of the prior art.

A second technical problem to be solved by the present invention is to provide a kitchen air conditioning system, which can remove heat generated by an air conditioning assembly through a range hood assembly, in view of the above-mentioned current state of the art.

The technical scheme adopted by the invention for solving the first technical problem is as follows: this cooling fan, including the spiral case and install the inside impeller in the spiral case, the impeller is including the blade, its characterized in that: an internal secondary cooling channel is formed inside each blade, and a secondary refrigerant inlet and a secondary refrigerant outlet which are communicated with the internal secondary cooling channel are respectively arranged on two sides of each impeller in the axial direction.

Preferably, the front end and the rear end of the blade are respectively arranged on the front disc and the rear disc, the front side of the front disc is provided with a front end cover, the rear side of the rear disc is provided with a rear end cover, the secondary refrigerant inlet is arranged on the front end cover, the secondary refrigerant outlet is arranged on the rear end cover, a front liquid storage cavity communicated with the secondary refrigerant inlet is formed between the front end cover and the front disc, and a rear liquid storage cavity communicated with the secondary refrigerant outlet is formed between the rear end cover and the rear disc.

In order to improve the heat exchange effect of the impeller, the blades are arranged in at least two circles in the circumferential direction.

Further preferably, the internal cooling carrying channel is distributed in a winding and winding way inside the blade.

The technical scheme adopted by the invention for solving the second technical problem is as follows: this kitchen air conditioning system, including air conditioning subassembly and oil absorption cigarette subassembly, the air conditioning subassembly includes compressor, first heat exchanger and second heat exchanger, compressor, first heat exchanger and second heat exchanger are linked together through the refrigerant pipeline, install cross valve, its characterized in that on the refrigerant pipeline: the oil fume absorption assembly comprises the heat radiation fan, and the second heat exchanger is communicated with a secondary refrigerant inlet and a secondary refrigerant outlet of the heat radiation fan through an external secondary cooling channel.

In order to enable water to flow smoothly in the cold carrying channel, the cold carrying media flowing through the inner cold carrying channel and the outer cold carrying channel are water, and a water pump used for driving the water to flow circularly between the second heat exchanger and the heat radiation fan is installed on the outer cold carrying channel. Of course, other refrigerants than water, such as ethylene glycol and glycerin, may be used.

In order to supplement fresh air into a kitchen room through the air conditioning assembly, the air conditioning assembly comprises a fresh air inlet and a fresh air outlet, and the fresh air inlet enters the first heat exchanger and then is supplemented into the kitchen room through the fresh air outlet.

Preferably, the fresh air outlet comprises a first fresh air outlet and a second fresh air outlet, the fresh air entering from the fresh air inlet is divided into two paths, one path of fresh air enters the first heat exchanger and then is supplemented into the kitchen room through the first fresh air outlet, and the other path of fresh air is directly supplemented into the kitchen room through the second fresh air outlet.

In order to make the air supplemented to the kitchen room cleaner, a fresh air purification device is arranged in the air channel between the fresh air inlet and the fresh air outlet.

The air conditioning module can be installed in a plurality of positions, preferably, the air conditioning module is installed in kitchen furred ceiling top, open on the kitchen furred ceiling with the ventilation hole that the new trend export is linked together.

In any of the above embodiments, a throttle valve is preferably installed in the refrigerant line between the first heat exchanger and the second heat exchanger.

Compared with the prior art, the invention has the advantages that: this radiator fan forms inside cold-carrying passageway at the blade inside, the both sides of impeller on the axial direction are equipped with secondary refrigerant entry and the secondary refrigerant export that are linked together with inside cold-carrying passageway respectively, the radiating effect is better, in addition, after through cold-carrying passageway intercommunication between this kitchen air conditioning system's second heat exchanger and radiator fan's the blade, the during operation of system, the function of heat dissipation and exhaust fume is concentrated on the impeller, the heat can be taken away fast to the fan to also do benefit to the heat transfer effect that improves the second heat exchanger, and then improve the air conditioner efficiency.

Drawings

Fig. 1 is a schematic structural view of a heat dissipation fan according to an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of an impeller according to an embodiment of the present invention;

FIG. 3 is an exploded view of the impeller shown in FIG. 2;

FIG. 4 is an enlarged view of portion A of FIG. 1;

FIG. 5 is a schematic diagram of a kitchen air conditioning system according to an embodiment of the present invention;

Detailed Description

The invention is described in further detail below with reference to the accompanying examples.

As shown in fig. 1 to 4, the heat dissipation fan 1 in the present embodiment is a centrifugal fan, and includes a volute 11 and an impeller 12 installed inside the volute, where the impeller 12 includes blades 13, and the blades 13 are arranged in three circles from inside to outside in a circumferential direction. An internal cooling passage 131 is formed inside the blade 13, the front and rear ends of the blade 13 are mounted on the front disk 16 and the rear disk 17, respectively, a front cover 18 is provided on the front side of the front disk 16, and a rear cover 19 is provided on the rear side of the rear disk 17. A secondary refrigerant inlet 14 is formed in the front end cover 18, a secondary refrigerant outlet 15 is formed in the rear end cover 19, a front liquid storage cavity communicated with the secondary refrigerant inlet 14 is formed between the front end cover 18 and the front disc 16, and a rear liquid storage cavity communicated with the secondary refrigerant outlet 15 is formed between the rear end cover 19 and the rear disc 17.

In this embodiment, the internal cooling passages 131 inside the blades 13 are straight passages, and the coolant entering the blades 13 directly flows out of the blades without being bent. Of course, the internal cooling channels 131 may also be designed to be distributed inside the blades 13 in a winding and meandering manner, so as to improve the heat exchange effect of the blades 13.

As shown in fig. 5, the kitchen air conditioning system in the present embodiment includes an air conditioning module 2 and a fume suction module 3, the air conditioning module 2 is installed above a kitchen ceiling 7, and the air conditioning module 2 and the fume suction module 3 are communicated with each other.

Specifically, the air conditioning assembly 2 includes a compressor 21, a first heat exchanger 22 and a second heat exchanger 23, the compressor 21, the first heat exchanger 22 and the second heat exchanger 23 are communicated with each other through a refrigerant pipeline 24, a four-way valve 25 is installed on the refrigerant pipeline 24, and a throttle valve 29 is installed on the refrigerant pipeline 24 between the first heat exchanger 22 and the second heat exchanger 23. The operation principle of the air conditioning assembly 2 is the same as that of the existing air conditioner, and will not be described herein.

The range hood assembly 3 of the present embodiment includes a radiator fan 1, and the second heat exchanger 23 is communicated with the coolant inlet 14 and the coolant outlet 15 of the radiator fan 1 through the external cold carrier channel 4. Thus, the internal cooling carrier passage 131 communicates with the external cooling carrier passage 4. Typically, the coolant flowing through the inner and outer cold carriers 131 and 4 is water, and a water pump 5 is installed on the outer cold carrier 4 to drive the water to circulate between the second heat exchanger 23 and the radiator fan 1. Besides water, the coolant can also be other substances such as glycol or glycerol.

In addition, the kitchen air conditioning system can supplement fresh air for a kitchen. Specifically, air conditioning component 2 includes new trend import 26 and new trend export, installs in new trend purifier 6 in the wind channel between new trend import 26 and new trend export. The fresh air outlet comprises a first fresh air outlet 27 and a second fresh air outlet 28, the kitchen ceiling 7 is provided with vent holes communicated with the first fresh air outlet 27 and the second fresh air outlet 28, fresh air entering from the fresh air inlet 26 is divided into two paths, wherein one path of fresh air enters the first heat exchanger 22 and is supplemented into the kitchen room through the first fresh air outlet 27, and the other path of fresh air is bypass fresh air and is directly supplemented into the kitchen room through the second fresh air outlet 28.

By switching the four-way valve 25, the working mode of the system can be changed, for example, the refrigeration mode can be started in summer and the heating mode can be started in winter. During the refrigeration mode, first heat exchanger uses as the evaporimeter, and the second heat exchanger uses as the condenser, and at this moment, comes out cold wind from first fresh air export and supply for the kitchen, and simultaneously, the heat that the condenser produced is discharged to outdoor by the fan behind the cold channel of loading, because the inside water that walks of blade, the radiating effect is better, and then improves the air conditioner efficiency. In the heating mode, the first heat exchanger is used as a condenser, the second heat exchanger is used as an evaporator, and at the moment, the hot air is supplied to a kitchen from the first fresh air outlet.

Claims

1. The utility model provides a kitchen air conditioning system, includes air conditioning component (2) and oil absorption cigarette subassembly (3), air conditioning component (2) are including compressor (21), first heat exchanger (22) and second heat exchanger (23), compressor (21), first heat exchanger (22) and second heat exchanger (23) are linked together through refrigerant pipeline (24), install cross valve (25), its characterized in that on refrigerant pipeline (24): the oil fume absorption assembly (3) comprises a heat radiation fan (1), the heat radiation fan (1) comprises a volute (11) and an impeller (12) installed inside the volute, the impeller (12) comprises blades (13), an internal secondary cooling channel (131) is formed inside the blades (13), a secondary refrigerant inlet (14) and a secondary refrigerant outlet (15) communicated with the internal secondary cooling channel (131) are respectively arranged on two sides of the impeller (12) in the axial direction, and the second heat exchanger (23) is communicated with the secondary refrigerant inlet (14) and the secondary refrigerant outlet (15) of the heat radiation fan (1) through an external secondary cooling channel (4).

2. The galley air conditioning system according to claim 1, wherein: the front end and the rear end of each blade (13) are respectively arranged on a front disc (16) and a rear disc (17), a front end cover (18) is arranged on the front side of the front disc (16), a rear end cover (19) is arranged on the rear side of the rear disc (17), a secondary refrigerant inlet (14) is formed in the front end cover (18), a secondary refrigerant outlet (15) is formed in the rear end cover (19), a front liquid storage cavity communicated with the secondary refrigerant inlet (14) is formed between the front end cover (18) and the front disc (16), and a rear liquid storage cavity communicated with the secondary refrigerant outlet (15) is formed between the rear end cover (19) and the rear disc (17).

3. The galley air conditioning system according to claim 1, wherein: the blades (13) are arranged in at least two circles in the circumferential direction.

4. The galley air conditioning system according to claim 1, wherein: the internal cold carrying channel (131) is distributed inside the blade (13) in a winding and winding way.

5. The galley air conditioning system according to claim 1, wherein: the secondary refrigerant flowing through the inner secondary cooling channel (131) and the outer secondary cooling channel (4) is water, and a water pump (5) used for driving the water to circularly flow between the second heat exchanger (23) and the heat dissipation fan (1) is installed on the outer secondary cooling channel (4).

6. The galley air conditioning system according to claim 1, wherein: the air conditioning assembly (2) comprises a fresh air inlet (26) and a fresh air outlet, and the fresh air inlet (26) enters the first heat exchanger (22) and then is supplemented to the kitchen room through the fresh air outlet.

7. The galley air conditioning system according to claim 6, wherein: the fresh air outlet comprises a first fresh air outlet (27) and a second fresh air outlet (28), fresh air entering from the fresh air inlet (26) is divided into two paths, wherein one path of fresh air enters the first heat exchanger (22) and then is supplemented into a kitchen room through the first fresh air outlet (27), and the other path of fresh air is directly supplemented into the kitchen room through the second fresh air outlet (28).

8. The galley air conditioning system according to claim 6, wherein: and a fresh air purification device (6) is arranged in the air channel between the fresh air inlet (26) and the fresh air outlet.

9. The galley air conditioning system according to any one of claims 1 to 8, wherein: and a throttle valve (29) is arranged on a refrigerant pipeline (24) between the first heat exchanger (22) and the second heat exchanger (23).