CN-224230389-U - Dry evaporator and air conditioner

CN224230389UCN 224230389 UCN224230389 UCN 224230389UCN-224230389-U

Abstract

The embodiment of the application provides a dry evaporator and an air conditioner, wherein the dry evaporator comprises a shell, a refrigerant pipe, a liquid viewing mirror and a cooling device, wherein a secondary refrigerant is filled in the shell, the refrigerant pipe is provided with a refrigerant input end, a heat exchange pipe body and a refrigerant output end which are sequentially connected, the refrigerant input end and the refrigerant output end are respectively arranged outside the shell, the heat exchange pipe body is arranged in the shell and soaked in the secondary refrigerant, and the liquid viewing mirror is arranged on the heat exchange pipe body and is used for observing bubbles in the heat exchange pipe body so as to determine the refrigerant evaporation rate of the dry evaporator according to the area ratio of the bubbles in the cross section of the heat exchange pipe body.

Inventors

WANG JIYU
WANG ZHENYONG
XIONG JUN
TANG ZIYING

Assignees

TCL空调器(中山)有限公司

Dates

Publication Date: 20260512
Application Date: 20250428

Claims (10)

1. A dry evaporator, comprising: A housing filled with a coolant; The refrigerant pipe is provided with a refrigerant input end, a heat exchange pipe body and a refrigerant output end which are sequentially connected, the refrigerant input end and the refrigerant output end are respectively arranged outside the shell, and the heat exchange pipe body is arranged in the shell and is soaked in the refrigerating medium; And the liquid viewing mirror is arranged on the heat exchange tube body and is used for observing bubbles in the heat exchange tube body so as to determine the refrigerant evaporation rate of the dry evaporator according to the area ratio of the bubbles in the cross section of the heat exchange tube body.
2. The dry evaporator of claim 1, wherein the dry evaporator comprises a plurality of liquid-viewing mirrors sequentially spaced apart along the direction of extension of the heat exchange tube body.
3. The dry evaporator according to claim 1, wherein the dry evaporator includes a pressure sensor provided at the refrigerant output end for measuring an evaporation pressure of the dry evaporator.
4. The dry evaporator according to claim 1, wherein the housing includes a housing body and two end caps, the two end caps being disposed at opposite ends of the housing body in a first direction, respectively, the refrigerant input end and the refrigerant output end being formed on the same end cap, the heat exchange tube body includes a plurality of straight tube sections and at least one bent tube section, and two adjacent straight tube sections are connected by one bent tube section, the first direction being a length direction of the housing body.
5. The dry evaporator as recited in claim 4, wherein a coolant input and a coolant output are provided at a top of the housing body along a second direction, the coolant input being disposed proximate to the coolant input, the coolant output being disposed distal to the coolant output, the second direction being a height direction of the housing body.
6. The dry evaporator as recited in claim 4, wherein said refrigerant output and said refrigerant input are sequentially spaced from top to bottom.
7. A dry evaporator as set forth in claim 1 wherein said housing defines a coolant input and a coolant output, said dry evaporator including a water inlet bulb and a water outlet bulb, said water inlet bulb being disposed at said coolant input and said water outlet bulb being disposed at said coolant output.
8. The dry evaporator of claim 1, wherein the dry evaporator comprises a freeze-proof bulb disposed at a bottom of the housing.
9. A dry evaporator as set forth in claim 1 wherein said bottom of said housing is provided with a coolant discharge port.
10. An air conditioner comprising the dry evaporator as set forth in any one of claims 1 to 9.

Description

Dry evaporator and air conditioner Technical Field The application relates to the technical field of evaporators, in particular to a dry type evaporator and an air conditioner. Background The dry evaporator is a dry shell-and-tube evaporator, and belongs to a common evaporation heat exchange device of a refrigeration cycle system. In the related art, a temperature sensing device is provided on the dry evaporator, and the refrigerant flow rate of the dry evaporator is controlled based on the measured value of the temperature sensing device. However, the temperature sensing device is easy to be abnormal or faulty, at this time, the refrigerant flow of the dry evaporator cannot be controlled, so that the refrigerant of the dry evaporator cannot be fully evaporated, and further, the compressor is caused to have liquid impact fault, and therefore, the control reliability is low. Disclosure of utility model The embodiment of the application provides a dry evaporator and an air conditioner, which can reliably detect and control the refrigerant evaporation rate of the dry evaporator, effectively ensure the operation safety of a compressor and have higher control reliability. On one hand, the embodiment of the application provides a dry evaporator which comprises a shell, a refrigerant pipe, a liquid viewing mirror and a liquid viewing mirror, wherein the shell is filled with a secondary refrigerant, the refrigerant pipe is provided with a refrigerant input end, a heat exchange pipe body and a refrigerant output end which are sequentially connected, the refrigerant input end and the refrigerant output end are respectively arranged outside the shell, the heat exchange pipe body is arranged in the shell and soaked in the secondary refrigerant, and the liquid viewing mirror is arranged on the heat exchange pipe body and is used for observing bubbles in the heat exchange pipe body so as to determine the refrigerant evaporation rate of the dry evaporator according to the area ratio of the bubbles in the cross section of the heat exchange pipe body. In some embodiments, the dry evaporator comprises a plurality of liquid-viewing mirrors, and the liquid-viewing mirrors are sequentially arranged at intervals along the extending direction of the heat exchange tube body. In some embodiments, the dry evaporator includes a pressure sensor disposed at the refrigerant output for measuring an evaporation pressure of the dry evaporator. In some embodiments, the shell comprises a shell body and two end covers, the two end covers are respectively arranged at two opposite ends of the shell body along a first direction, the refrigerant input end and the refrigerant output end are formed on the same end cover, the heat exchange tube body comprises a plurality of straight tube sections and at least one bent tube section, two adjacent straight tube sections are connected through one bent tube section, and the first direction is the length direction of the shell body. In some embodiments, a coolant input end and a coolant output end are disposed on the housing body along a top portion of the second direction, the coolant input end is disposed near the coolant input end, the coolant output end is disposed far from the coolant output end, and the second direction is a height direction of the housing body. In some embodiments, the refrigerant output end and the refrigerant input end are sequentially arranged at intervals from top to bottom. In some embodiments, the shell is provided with a coolant input end and a coolant output end, and the dry evaporator comprises a water inlet thermal bulb and a water outlet thermal bulb, wherein the water inlet thermal bulb is arranged at the coolant input end, and the water outlet thermal bulb is arranged at the coolant output end. In some embodiments, the dry evaporator includes a freeze temperature bulb disposed at a bottom of the housing. In some embodiments, the bottom of the housing is provided with a coolant discharge port. In another aspect, an embodiment of the present application provides an air conditioner, including the dry evaporator provided in any one of the above embodiments. According to the embodiment of the application, the liquid viewing mirror is arranged on the heat exchange tube body of the refrigerant tube, the bubbles in the heat exchange tube body are observed by the liquid viewing mirror, the refrigerant evaporation rate of the dry evaporator is determined according to the area ratio of the bubbles in the cross section of the heat exchange tube body, and then the opening degree of a throttling device such as an electronic expansion valve is controlled according to the refrigerant evaporation rate of the dry evaporator, so that the refrigerant flow and the refrigerant evaporation rate of the dry evaporator are regulated to be matched with the actual working condition, the refrigerant in the dry evaporator is ensured to be fully evaporated, the liquid impact fault of the compressor