Kitchen Air Conditioning System

Abstract

A kitchen air-conditioning system comprises an air-conditioning assembly (1) and a range hood assembly (2); the air-conditioning assembly (1) comprises a compressor (11), a first heat exchanger (12) and a second heat exchanger (13) which are connected with each other through a plurality of refrigerating medium pipes (14); the range hood assembly (2) comprises a housing (21) and a fan (22), a rear air exhaust passage (3) is disposed outside of the housing (21); a third heat exchanger (4) and the fan (22) are disposed in the rear air exhaust passage (3); the third heat exchanger (4) communicates with the second heat exchanger (13) through a secondary refrigerant pipe (5). As the third heat exchanger (4) in the rear air exhaust passage (3) in communicates with the second heat exchanger (13) through the secondary refrigerant pipe (5), heat generated by the operation of the air-conditioning assembly (1) can be quickly exhausted to the outside through the fan (22).

Claims

1. A kitchen air-conditioning system, comprising an air-conditioning assembly (1) and a range hood assembly (2); the air-conditioning assembly (1) comprising a compressor (11), a first heat exchanger (12) and a second heat exchanger (13) which are connected with each other through a plurality of refrigerating medium pipes (14); wherein, the range hood assembly (2) comprises a housing (21), a fan (22) and a third heat exchanger (4), the housing (21) has a first air intake passage (23) inside; a rear air exhaust passage (3) in communication with the first air intake passage (23) is disposed outside of the housing (21); the third heat exchanger (4) and the fan (22) are disposed in the rear air exhaust passage (3); the third heat exchanger (4) communicates with the second heat exchanger (13) through a secondary refrigerant pipe (5) with a first end (51) and a second end (52); the secondary refrigerant from the first end (51) of the secondary refrigerant pipe (5) exchanges heat inside the second heat exchanger (13), and the secondary refrigerant from the second end (52) of the secondary refrigerant pipe (5) exchanges heat inside the third heat exchanger (4).

2. The system of claim 1, wherein a second air intake passage (6) having an air inlet (61) in communication with outside of the kitchen is disposed outside of the housing (21), the rear air exhaust passage (3) also communicates with the outside of the kitchen through the second air intake passage (6).

3. The system of claim 2, wherein a first valve (71) is disposed between the first air intake passage (23) and the rear air exhaust passage (3) to control communication between the first air intake passage (23) and the rear air exhaust passage (3), a second valve (72) capable of opening or closing the air inlet (61) is disposed at the air inlet (61) of the second air intake passage (6).

4. The system of claim 2, wherein the kitchen air-conditioning system is mounted inside a kitchen with a kitchen ceiling (8), the second air intake passage (6) is disposed above the kitchen ceiling (8).

5. The system of claim 1, wherein the air-conditioning assembly (1) is disposed above the kitchen ceiling (8).

6. The system of claim 1, wherein the air-conditioning assembly (1) has a fresh air inlet (15) and a fresh air outlet (16) both in communication with each other, and the fresh air outlet (16) communicates with the interior space (K) of the kitchen.

7. The system of claim 6, wherein the air-conditioning assembly (1) comprises a shell (10), and the shell (10) has a first chamber (100) and a second chamber (101) inside the shell (10); the compressor (11) and the second heat exchanger (13) are disposed in the first chamber (100), the first heat exchanger (12) and a heat exchanging fan (17) working together with the first heat exchanger (12) are disposed in the second chamber (101), the fresh air outlet (16) is formed on the second chamber (101), and the fresh air outlet (16) is defined as an air outlet of the first heat exchanger (12).

8. The system of claim 7, wherein the first heat exchanger (12) is an evaporator, and the second heat exchanger (13) is a condenser.

9. The system of claim 1, wherein the fan (22) is disposed at back of the third heat exchanger (4).

10. The system of claim 1, wherein the fan (22) is disposed at front of the third heat exchanger (4).

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0019] FIG. 1 is a view of a kitchen air-conditioning system according to a first embodiment of the present invention;

[0020] FIG. 2 is a view of the air-conditioning assembly according to the first embodiment of the present invention;

[0021] FIG. 3 is a view of a kitchen air-conditioning system according to a second embodiment of the present invention.

DETAILED DESCRIPTION OF THE INVENTION

[0022] The present invention will be further described below in detail with reference to the accompanying drawings by embodiments.

First Embodiment

[0023] FIGS. 1 and 2 show a first embodiment of a kitchen air-conditioning system according to the present invention. The kitchen air-conditioning system comprises an air-conditioning assembly 1 and a range hood assembly 2.

[0024] The air-conditioning assembly 1 comprises a compressor 11, a first heat exchanger 12 and a second heat exchanger 13 which are connected with each other through a plurality of refrigerating medium pipes 14. A four-way valve (not shown) is disposed on the refrigerating medium pipes 14. The specific structure and the operating principle of the air-conditioning assembly 1 are the same as those of the existing air conditioners, and will not be repeated here.

[0025] The range hood assembly 2 comprises a housing 21 and a fan 22, the housing 21 has a first air intake passage 23 inside. A purifier 24 is disposed inside the first air intake passage 23. A rear air exhaust passage 3 in communication with the first air intake passage 23 is disposed outside of the housing 21. The kitchen air-conditioning system is mounted inside a kitchen with a kitchen ceiling 8, the second air intake passage 6 having an air inlet 6lis disposed above the kitchen ceiling 8;, the rear air exhaust passage 3 communicates with the outside of the kitchen through the second air intake passage 6.

[0026] The fan 22 of the range hood assembly is disposed inside the rear air exhaust passage 3, and a third heat exchanger 4 is also disposed inside the rear air exhaust passage 3. In this embodiment, the fan 22 is disposed at back of the third heat exchanger 4. The third heat exchanger 4 communicates with the second heat exchanger 13 through a secondary refrigerant pipe 5 with a first end 51 and a second end 52, the secondary refrigerant pipe 5 has secondary refrigerant flowing inside; the secondary refrigerant from the first end 51 of the secondary refrigerant pipe 5 exchanges heat inside the second heat exchanger 13, and the secondary refrigerant from the second end 52 of the secondary refrigerant pipe 5 exchanges heat inside the third heat exchanger 4. Usually, water is used as the secondary refrigerant. A water pump (not shown) is disposed on the secondary refrigerant pipe 5 to drive the water to circulate inside the secondary refrigerant pipe 5. Besides water, the secondary refrigerant can be other different substances such as ethylene glycol or glycerol.

[0027] A first valve 71 is disposed between the first air intake passage 23 and the rear air exhaust passage 3 to control communication between the first air intake passage 23 and the rear air exhaust passage 3. When both the air-conditioning assembly and the range hood assembly are working, the first valve 71 is opened so that the first air intake passage 23 and the rear air exhaust passage 3 are in communication. When only the air-conditioning assembly is working, the first valve 71 is closed, so that the first air intake passage 23 and the rear air exhaust passage 3 are isolated (not in communication) from each other. A second valve 72 capable of opening or closing the air inlet 61 is disposed at the air inlet 61 of the second air intake passage 6, the air inlet 61 of the second air intake channel 6 can be opened or closed by the second valve 72. When the air-conditioning assembly is working, the second valve 72 can be opened, to allow external air to enter the second air intake passage 6 and then flow into the rear air exhaust air passage 3 to take heat away from the third heat exchanger 4, so to further enhance the heat exchange effect of the third heat exchanger 4.

[0028] The air-conditioning assembly 1 in this embodiment is disposed above the kitchen ceiling 8. The air-conditioning assembly 1 further comprises a shell 10, and the shell 10 has a first chamber 100 and a second chamber 101 inside the shell 10; the compressor 11 and the second heat exchanger 13 are disposed in the first chamber 100, the first heat exchanger 12 and a heat exchanging fan 17 working together with the first heat exchanger 12 are disposed in the second chamber 101, a fresh air outlet 16 communicating with the interior space K of the kitchen is formed on the second chamber 101, and the fresh air outlet 16 is defined as an air outlet of the first heat exchanger 12.The air-conditioning assembly also has a fresh air inlet 15. A fresh air purification component 18 is disposed in the air duct between the fresh air inlet 15 and the fresh air outlet 16 inside the shell 10 to make the air entering into the kitchen cleaner.

[0029] By switching the four-way valve, the system can be switched between cooling mode and heating mode.

[0030] Under the cooling mode, the first heat exchanger 12 is an evaporator and the second heat exchanger 13 is a condenser. The outdoor air enters the second chamber 101 through the fresh air inlet 15 and is purified by the fresh air purification component 18. The purified fresh air is guided to the evaporator through the guide component 19, and then cool air is blown out from the fresh air outlet 16 to cool the kitchen. At the same time, the refrigerating medium in the condenser exchanges heat with the secondary refrigerant in the secondary refrigerant pipe 5, the secondary refrigerant pipe 5 also exchanges heat with the third heat exchanger 4 in the rear air exhaust passage 3, and the airflow in the rear air exhaust passage 3 passing over the surface of the third heat exchanger 4 can cool and take heat away from the third heat exchanger 4, thereby reducing the temperature of the secondary refrigerant flowing through the third heat exchanger 4. In this way, by reducing the temperature of the secondary refrigerant in the secondary refrigerant pipe 5, the heat exchange effect of the condenser can be improved, and the energy efficiency of the air-conditioning assembly can be improved accordingly.

[0031] Under the heating mode, the first heat exchanger 12 is a condenser and the second heat exchanger 13 is an evaporator. The purified air heated by the condenser enters into the kitchen to warm the kitchen in winter. The cold energy from the evaporator is transmitted to the third heat exchanger 4 in the rear air exhaust passage 3 through the secondary refrigeration pipe 5, and finally exhausted to the outside through the fan 22 of the range hood assembly 2.

Second Embodiment

[0032] FIG. 3 shows a second embodiment of the kitchen air-conditioning system according to the present invention. In the kitchen air-conditioning system of this embodiment, the fan 22 of the range hood assembly 2 is disposed at front of the third heat exchanger 4, and air from the air outlet of the fan 22 can be directly blown to the third heat exchanger 4, thereby effectively improving the heat exchange effect of the third heat exchanger 4. The other structure of kitchen air-conditioning system is the same as that of the above-mentioned first embodiment, and will not be further described here.