CN218565613U

CN218565613U - Multi-section expansion type rapid pressure balancing device and air conditioner thereof

Info

Publication number: CN218565613U
Application number: CN202221464790.5U
Authority: CN
Inventors: 任杰; 五十住晋一; 相金波
Original assignee: Mitsubishi Heavy Industries Haier Qingdao Air Conditioners Co Ltd
Current assignee: Mitsubishi Heavy Industries Haier Qingdao Air Conditioners Co Ltd
Priority date: 2022-06-13
Filing date: 2022-06-13
Publication date: 2023-03-03
Anticipated expiration: 2032-06-13

Abstract

The utility model discloses a quick pressure equaliser of multistage inflation formula and air conditioner thereof, pressure equaliser includes solenoid valve and the balanced pipe of gradual change formula that communicates through the pipeline, and the balanced pipe of gradual change formula includes n rank balanced pipe, and the balanced pipe of nth rank is located the balanced pipe of gradual change formula and is just middle part, and wherein 1 to n-1 rank balanced pipe uses the balanced pipe of nth rank as central symmetry distribution at the both ends of balanced pipe of nth rank, and the pipe diameter of balanced pipe of 1 st rank to the balanced pipe of nth rank increases in steps; the air conditioner comprises an indoor heat exchanger, an outdoor heat exchanger, a compressor, a four-way valve and a throttling device, wherein the multi-section expansion type rapid pressure balancing device is connected with the throttling device in parallel. When the heating stage reaches the defrosting condition, the pressure can be balanced in a short time after the machine is shut down by using the structure, and defrosting can be rapidly carried out; after defrosting is finished, the pressure can be quickly balanced, and the press is quickly started to heat.

Description

Multi-section expansion type rapid pressure balancing device and air conditioner thereof

Technical Field

The utility model relates to an air conditioner refrigeration plant technical field especially relates to a quick pressure balance device of multistage inflation formula and air conditioner thereof.

Background

The heat pump air conditioner has defrosting operation when heating in winter, and the defrosting mode commonly used at present is reverse defrosting. However, during heating operation, the high pressure and the low pressure of the compressor have large pressure difference, and the compressor needs to be stopped for a period of time to enable the pressure to be balanced and then can be restarted for defrosting. After defrosting is finished, the machine also needs to be stopped for a period of time again, and the machine is started again for heating after pressure is balanced. If the compressor is forced to start when the pressures are not balanced, the compressor may fail to start and even burn out.

During a defrost cycle, the compressor needs to be shut down twice to equalize the pressure. Because of different system throttling components and different pressure balancing time, the single shutdown time is generally between 60S and 120S, and the heating effect is reduced to different degrees. And if in order to shorten down time, with the mode of cross valve forced commutation or other quick reliefs, can produce great impact to refrigerating system part, still can produce great noise simultaneously, user experience is poor. Therefore, there is a need for a device or method that can equalize pressure in a short period of time without generating loud noise.

SUMMERY OF THE UTILITY MODEL

The utility model provides a quick pressure equaliser of multistage inflation formula and air conditioner thereof to when solving the air conditioner heating and defrosting conversion, the compressor opens and stops the long problem of indoor outer heat exchange pressure time of balance.

The utility model provides a quick pressure equaliser of multistage inflation formula, include the solenoid valve and the balanced pipe of gradual change formula through the pipeline intercommunication, the balanced pipe of gradual change formula includes the balanced pipe of n rank, and n is greater than or equal to 3, and the balanced pipe of nth rank is located the balanced pipe of gradual change formula and is middle part directly, and wherein 1 st to the balanced pipe of n-1 st rank uses the balanced pipe of nth rank to be central symmetric distribution at the both ends of the balanced pipe of nth rank, and the balanced pipe of 1 st rank increases to the pipe diameter of the balanced pipe of nth rank in order.

Preferably, the inner diameter of the 1 st order balance pipe is more than or equal to 4mm, and the length of the 1 st order balance pipe is less than or equal to 50mm.

Preferably, the inner diameter of the nth-order balance pipe is more than or equal to 20mm, and the length of the nth-order balance pipe is more than or equal to 30mm.

Preferably, the inner diameter ratio of the two adjacent stages of balance pipes is less than 2.

Preferably, the n-order balance pipe is coaxially assembled.

The utility model also provides an adopt the quick pressure equaliser of multistage inflation formula air conditioner, the air conditioner includes indoor heat exchange, outdoor heat exchange, compressor, cross valve, throttling arrangement, the quick pressure equaliser of multistage inflation formula is parallelly connected with throttling arrangement.

Preferably, the throttling device is a capillary tube or an expansion valve.

Compared with the prior art, the beneficial effects of the utility model reside in that: when the defrosting condition is achieved in the heating stage, the pressure balancing device can balance indoor and outdoor heat exchange pressure within a short time after shutdown and quickly enter defrosting, and the pressure balancing time is generally 2-10S; after defrosting is finished, the pressure can be quickly balanced, and the press is quickly started to heat; when pressure is balanced fast, because balanced pipe adopts pipe diameter gradual change and amortization structure, the noise control is at extremely low level, can not influence user comfort level.

Drawings

FIG. 1: the utility model discloses the structural schematic diagram of quick pressure equaliser of multistage inflation formula gradual change formula balance pipe.

FIG. 2: the utility model discloses schematic diagram of air conditioner.

The attached drawings are marked as follows:

the system comprises an electromagnetic valve 1, a gradual change type balance pipe 2, an indoor heat exchanger 3, an outdoor heat exchanger 4, a compressor 5, a four-way valve 6, a throttling device 7, a 1 st-order balance pipe 21, a second-order balance pipe 22, a third-order balance pipe 23 and a 4 th-order balance pipe 24.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is to be understood that the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-2, the multi-stage expansion type rapid pressure balancing apparatus of this embodiment includes an electromagnetic valve 1 and a gradual change type balance pipe 2 which are communicated with each other through a pipeline, where the gradual change type balance pipe 2 includes a 4-order balance pipe, a 4 th-order balance pipe 24 is located in the middle of the gradual change type balance pipe 2, the 1 st-order balance pipe 21, the second-order balance pipe 22, and the third-order balance pipe 23 are symmetrically distributed at two ends of the 4 th-order balance pipe with the 4 th-order balance pipe 24 as a center, and pipe diameters of the 1 st-order balance pipe 21 to the 4 th-order balance pipe 24 are gradually increased in a stepwise manner.

As a preferable embodiment of the embodiment, the 1 st order balance pipe 21 has an inner diameter of 4mm or more and a length of 50mm or less.

As a preferred embodiment of the present embodiment, the 4 th-order balance pipe 24 has an inner diameter of 20mm or more and a length of 30mm or more. Specifically, the inner diameter and the length of the 4 th-order balance pipe 24 can be set according to the noise reduction calculation result, so that a good noise reduction effect is achieved.

As a preferred embodiment of this embodiment, the inner diameter ratio of the two adjacent balance tubes is less than 2, for example, the ratio of the inner diameter of the fourth balance tube 24 to the inner diameter of the third balance tube 23 is 1.8.

As a preferred embodiment of this embodiment, the 4 th-order balance pipe is coaxially assembled.

This embodiment still provides an adoption the quick pressure equaliser of multistage inflation formula air conditioner, the air conditioner includes indoor heat exchange 3, outdoor heat exchange 4, compressor 5, cross valve 6, throttling arrangement 7, four ports of cross valve 6 are connected indoor heat exchange 3, outdoor heat exchange 4, compressor 5's induction port and gas vent respectively, throttling arrangement 7 is connected indoor heat exchange 3, outdoor heat exchange 4 respectively, the quick pressure equaliser of multistage inflation formula is parallelly connected with throttling arrangement 7, connects indoor heat exchange 3 and outdoor heat exchange 4 respectively.

In a preferred embodiment of this embodiment, the throttling device 7 is a capillary tube or an expansion valve.

When the heating machine is shut down, the indoor heat exchange 3 is high-pressure, the outdoor heat exchange 4 is low-pressure, the electromagnetic valve 1 is opened at the moment, the resistance of the multi-section expansion type rapid pressure balancing device is far smaller than the throttling device 7, an indoor high-temperature high-pressure liquid refrigerant enters from a port B of the balancing device and passes through a gradually-expanding section of the gradually-changing type balancing pipe 2, the pressure is reduced in a step mode, the pressure reaches a silencing section in the middle, the pressure relief and silencing effects are achieved, the indoor high-temperature high-pressure liquid refrigerant flows out from a port A after passing through the gradually-reducing section and becomes a low-pressure low-temperature gas-liquid mixed refrigerant, the low-pressure outdoor heat exchange 4 is achieved, the pressure of the indoor heat exchange and outdoor heat exchange is rapidly balanced, then the electromagnetic valve 1 is closed, the four-way valve 6 is reversed, and the compressor 5 is started to achieve rapid defrosting. After defrosting is finished, the electromagnetic valve 1 is opened similarly, and the pressure balance device of the embodiment is adopted to balance the pressure of indoor and outdoor heat exchange again. By using the pressure balance device of the embodiment, the pressure balance time of indoor and outdoor heat exchange is 2-10S, the pressure balance time is greatly shortened, the conversion capability between air conditioner heating and defrosting is improved, and the user experience is ensured. Simultaneously, the gradual change formula balance pipe 2 of this embodiment can also play the amortization, promotes user comfort in use.

The foregoing is a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a quick pressure equaliser of multistage inflation formula which characterized in that: the device comprises an electromagnetic valve and a gradual change type balance pipe which are communicated through a pipeline, wherein the gradual change type balance pipe comprises n-order balance pipes, n is more than or equal to 3, the nth-order balance pipe is positioned in the middle of the gradual change type balance pipe, the 1 st to the n-1 st-order balance pipes are symmetrically distributed at two ends of the nth-order balance pipe by taking the nth-order balance pipe as a center, and the pipe diameters of the 1 st to the nth-order balance pipes are gradually increased.

2. The multi-stage expansion rapid pressure balancing device of claim 1, wherein: the inner diameter of the 1 st order balance pipe is more than or equal to 4mm, and the length of the 1 st order balance pipe is less than or equal to 50mm.

3. The multi-stage expansion rapid pressure balancing device of claim 1, wherein: the inner diameter of the nth-order balance pipe is more than or equal to 20mm, and the length of the nth-order balance pipe is more than or equal to 30mm.

4. The multi-stage expansion rapid pressure equalization apparatus of claim 1, wherein: the inner diameter ratio of the two adjacent stages of balance pipes is less than 2.

5. The multi-stage expansion rapid pressure balancing device of claim 1, wherein: and the n-order balance pipe is coaxially assembled.

6. An air conditioner using the multi-stage expansion type rapid pressure balancing device of any one of claims 1 to 5, the air conditioner comprising an indoor heat exchanger, an outdoor heat exchanger, a compressor, a four-way valve, a throttling device, characterized in that: the multi-section expansion type rapid pressure balancing device is connected with the throttling device in parallel.

7. The air conditioner according to claim 6, wherein: the throttling device adopts a capillary tube or an expansion valve.