CN112212551A

CN112212551A - Structure compatible with cooling and defrosting of condensation pipe

Info

Publication number: CN112212551A
Application number: CN202011000932.8A
Authority: CN
Inventors: 李�杰; 潘杰诚; 余兆开; 吴铎; 瞿晓华; 穆景阳
Original assignee: Aitaisi Thermal System Research And Development Shanghai Co ltd
Current assignee: Aitaisi Thermal System Research And Development Shanghai Co ltd
Priority date: 2020-09-22
Filing date: 2020-09-22
Publication date: 2021-01-12

Abstract

A structure compatible with cooling and defrosting of a condensation pipe comprises: with two sets of condensers and two sets of grids of casing complex to and the symmetry sets up the fan of two independent control in the casing, wherein: the space is divided into two areas by the shell, the two groups of condensers are arranged in parallel and are separated by the partition plate, the two groups of grids are respectively and correspondingly arranged at the bottoms of the two groups of condensers, the two fans independently provide heat dissipation for the two groups of condensers, and the two groups of condensers and the two groups of grids can realize series connection, parallel connection or independent operation under the driving of the motor; the two independent condensers can be used in parallel or in series, are compatible with various heat pump systems, and have wide application range; two independently controlled fans are arranged corresponding to the two condensers, which is beneficial to energy conservation.

Description

Structure compatible with cooling and defrosting of condensation pipe

Technical Field

The invention relates to the technology in the field of air conditioners, in particular to a structure compatible with refrigeration and defrosting of a condenser pipe.

Background

When the heat pump continuously heats, the condenser in the prior art is seriously frosted, so that the energy efficiency ratio is reduced, and the running performance of the heat pump is deteriorated.

Disclosure of Invention

Aiming at the defects in the prior art, the invention provides a structure compatible with the refrigeration and defrosting of a condenser pipe, which can finish the defrosting of an outdoor condenser under the condition of uninterrupted heating mode of a heat pump and maintain the heating of the heat pump.

The invention is realized by the following technical scheme:

the invention relates to a structure compatible with cooling and defrosting of a condenser pipe, which comprises: with two sets of condensers and two sets of grids of casing complex to and the symmetry sets up the fan of two independent control in the casing, wherein: the casing is two regions with space separation, and two sets of condensers set up side by side and are separated by the baffle, and two sets of grids correspond respectively and set up in the bottom of two sets of condensers, and two fans provide the heat dissipation alone for two sets of condensers, and two sets of condensers and two sets of grids can realize establishing ties, parallelly connected or independent operation separately under the drive of motor.

The condenser be two horizontal condenser pipes that the symmetry set up and by flat tub of longitudinal connection, this condenser pipe is equipped with the pipeline and inside is equipped with the baffle.

Each set of grids comprises: two parallel grating plates and a grating connecting rod vertical to the two.

Technical effects

The invention integrally solves the problem that the refrigeration efficiency is reduced because the prior condenser can not defrost in time in the refrigeration process;

compared with the prior art, the invention has the advantages that the refrigeration performance and the capacity of timely defrosting are ensured under the working conditions that the two groups of condensers are connected in series and in parallel, the outdoor condenser defrosting can be completed under the condition that the heating mode of the heat pump is uninterrupted, and the heating of the heat pump is maintained; two independently controlled fans are arranged corresponding to the two condensers, which is beneficial to energy conservation.

Drawings

FIG. 1 is a front view of the present embodiment;

FIG. 2 is a bottom view of the present embodiment;

FIG. 3 is a top view of the present embodiment;

FIG. 4 is a schematic structural diagram of a condenser;

in the figure: a is a front view; b is a side view;

FIG. 5 is a schematic view of the left defrosting operation of the present embodiment;

FIG. 6 is a schematic view of the right side of the present embodiment during defrosting;

FIG. 7 is a schematic view illustrating defrosting of both sides of the present embodiment;

FIG. 8 is a schematic view of the present embodiment when both the left and right sides are condensed;

in the figure: the air conditioner comprises a first condenser 1, a second condenser 2, a first fan 3, a second fan 4, a front shell 5, a rear shell 6, a first motor 7, a first grid 8, a second grid 9, a first grid connecting rod 10, a second motor 11, a third grid 12, a fourth grid 13, a second grid connecting rod 14, first to fourth pipelines a to d, first to sixth clapboards e to j and flat pipes k.

Detailed Description

As shown in fig. 1, the present embodiment includes: two fans 3, 4 symmetrically arranged between the front housing 5 and the rear housing 6, and two sets of condensers 1, 2, two sets of grills and two

motors

7, 11, wherein: the two groups of condensers are respectively arranged corresponding to the two fans, the two groups of grids are respectively arranged at the bottoms of the two fans, the two motors are respectively arranged at one sides of the two fans, the front shell 5 and the rear shell 6 are separated into two independent areas, the first condenser 1 and the second condenser 2 are respectively arranged in the two areas, the first fan 3 is used for radiating heat of the first condenser 1, the second fan 4 is used for radiating heat of the second condenser 2, and the first motor 7, the first grid 8, the second grid 9 and the first grid connecting rod 10 of the first group of grids are respectively and independently controlled; the second motor 11, the third grid 12, the fourth grid 13 and the second grid link 14 of the second set of grids are controlled independently.

As shown in fig. 2, the first set of grids includes: the two independent first grids 8 and the second grid 9, and the first grid connecting rod 10 which is vertical to the two grids; the second set of grids comprises: two independent third grids 12 and fourth grids 13, and a second grid connecting rod 14 arranged perpendicular to the two grids.

As shown in fig. 4a, the two sets of condensers are arranged in parallel, and the refrigerants of the first condenser 1 and the second condenser 2 are blocked by the first partition plate e and the second partition plate f, so that the refrigerants of the first condenser and the second condenser are prevented from colliding, and the double-zone operation is realized.

First condenser 1 for two horizontal condenser pipe that the symmetry set up and by flat tub of k longitudinal connection, these two condenser pipes are equipped with first pipeline an and third pipeline c respectively and are used for going out water or intaking, and inside third baffle g and the fifth baffle i of being equipped with respectively in order to realize three flows.

Second condenser 2 for two horizontal condenser pipe that the symmetry set up and by flat tub of k longitudinal connection, these two condenser pipes are equipped with second pipeline b and fourth pipeline d respectively and are used for going out water or intaking, and inside fourth baffle h and the sixth baffle j of being equipped with respectively in order to realize three processes.

As shown in fig. 4b, the included angle between the flat tubes k and the horizontal plane is α, and the range of α is [45 ° and 90 ° ], which is beneficial to the drainage of the flat tubes k and the fins.

As shown in fig. 4a and 4b, the present embodiment relates to the dual zone operation mode and the heat pump heating mode of the above-described structure.

The double-zone operation mode is as follows: the series working mode and the parallel working mode of the first condenser 1 and the second condenser 2 specifically include:

firstly, when a first condenser 1 and a second condenser 2 work in series and are condensed simultaneously and defrosted simultaneously or the first condenser 1 defrosts and the second condenser 2 condenses, a refrigerant enters a first pipeline a of the first condenser 1, flows out of a third pipeline c through three processes, enters the second condenser 2 from a fourth pipeline d after passing through a throttle valve, and flows out of a second pipeline b through three processes, so that series connection is realized;

when the first condenser 1 and the second condenser 2 work in parallel, and the two work simultaneously in condensation and defrosting or the first condenser 1 is condensed and the second condenser 2 is defrosted, the refrigerant separately enters liquid from the first pipeline a of the first condenser 1 and the second pipeline b of the second condenser 2, flows out from the third pipeline c and the fourth pipeline d through three flows, and flows out together after being converged to realize parallel connection, wherein:

for the first condenser: i) the refrigerant enters from a first pipeline a of the first condenser 1, and can only flow downwards through a flat tube on the left side of the condenser due to the existence of a third partition plate g, ii) the refrigerant can only flow upwards through a flat tube on the middle part of the condenser due to the existence of a fifth partition plate i, iii) the refrigerant finally flows downwards through a flat tube on the right side of the condenser due to the existence of a first partition plate e, and then flows out from a third pipeline c;

for the second condenser: i) the refrigerant enters from the second pipeline b of the second condenser 2, and due to the existence of the fourth partition plate h, the refrigerant can only flow downwards through the flat tube on the left side of the condenser, ii) due to the existence of the sixth partition plate j, the refrigerant can only flow upwards through the flat tube in the middle of the condenser, iii) due to the existence of the first partition plate e, the refrigerant finally flows downwards through the flat tube on the right side of the condenser, and then flows out from the fourth pipeline d.

The heating mode of the heat pump is as follows: the two groups of condensers heat the heat pump or heat the unilateral simultaneously, the unilateral is defrosted, and when one side is defrosted and is accomplished, continue to heat the heat pump, the opposite side then changes into the mode of defrosting to realize that the heat pump mode of heating is incessant, specifically include:

firstly, when the first condenser 1 defrosts and the second condenser 2 condenses, the first motor 7 controls the first grille 8 to open, the first grille 8 drives the second grille 9 to open through the first grille connecting rod 10, and defrosting is realized, as shown in fig. 5;

secondly, when the second condenser 2 defrosts and the first condenser 1 condenses, the second motor 11 controls the third grille 12 to open, the third grille 12 drives the fourth grille 13 to open through the second grille connecting rod 14, and defrosting is realized, as shown in fig. 6;

thirdly, when the first condenser 1 and the second condenser 2 are simultaneously started to defrost, the first grille 8, the second grille 9, the third grille 12 and the fourth grille 13 are all opened, as shown in fig. 7;

when the first condenser 1 and the second condenser 2 condense simultaneously, the first grill 8, the second grill 9, the third grill 12, and the fourth grill 13 are all closed, as shown in fig. 8.

The more the flow paths are more and more beneficial when the condenser condenses, and the less the flow paths are more and more beneficial when the condenser defrosts, so that the condensing and defrosting effects of the condenser are comprehensively considered, and the three flow paths can maximize the effects.

Compared with the prior art, the device can realize uninterrupted refrigeration working conditions, defrosting is carried out in time, and the refrigeration efficiency is improved.

The foregoing embodiments may be modified in many different ways by those skilled in the art without departing from the spirit and scope of the invention, which is defined by the appended claims and all changes that come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Claims

1. The utility model provides a structure of compatible condenser pipe refrigeration and defrosting which characterized in that includes: with two sets of condensers and two sets of grids of casing complex to and the symmetry sets up the fan of two independent control in the casing, wherein: the casing is two regions with space separation, and two sets of condensers set up side by side and are separated by the baffle, and two sets of grids correspond respectively and set up in the bottom of two sets of condensers, and two fans provide the heat dissipation alone for two sets of condensers, and two sets of condensers and two sets of grids can realize establishing ties, parallelly connected or independent operation separately under the drive of motor.

2. The structure of claim 1, wherein the condenser is two horizontal condenser tubes symmetrically arranged and longitudinally connected by a flat tube, the condenser tubes are provided with pipes and internally provided with a partition plate.

3. The structure of claim 1, wherein each group of the grilles comprises: two parallel grating plates and a grating connecting rod vertical to the two.

4. The structure of claim 2, wherein the flat tubes are at an angle of [45 °,90 ° ] to the horizontal plane.

5. The heat exchange method of the structure compatible with the cooling and defrosting of the condensation pipe according to any one of claims 1 to 4, characterized by comprising the following steps: a dual zone operating mode and a heat pump heating mode, wherein: the dual zone operating mode refers to: the first condenser and the second condenser are in a series working mode and a parallel working mode; the heating mode of the heat pump is as follows: the two groups of condensers heat the heat pump at the same time or heat the single side and defrost the single side, when defrosting on one side is finished, the heat pump is continuously heated, and the other side is switched to a defrosting mode, so that the heat pump heating mode is uninterrupted.

6. The heat exchange method of claim 5 wherein the dual zone mode of operation comprises:

firstly, when a first condenser and a second condenser work in series and are condensed simultaneously and defrosted simultaneously or the first condenser defrosts and the second condenser condenses, a refrigerant enters a first pipeline of the first condenser, flows out of a third pipeline through three processes, enters the second condenser from a fourth pipeline after passing through a throttling valve, and flows out of the second pipeline through three processes, so that the series connection is realized;

when the first condenser and the second condenser work in parallel, and the first condenser and the second condenser condense at the same time, defrost at the same time or the first condenser condenses and the second condenser defrosts, the refrigerant is separately fed from the first pipeline of the first condenser and the second pipeline of the second condenser, flows out from the third pipeline and the fourth pipeline through three flows, and flows out together after being converged, so that the parallel connection is realized, wherein:

for the first condenser: i) the refrigerant enters from a first pipeline of the first condenser, and can only flow downwards through a flat pipe on the left side of the condenser due to the existence of a third partition plate, ii) the refrigerant can only flow upwards through a flat pipe in the middle of the condenser due to the existence of a fifth partition plate, and iii) the refrigerant finally flows downwards through a flat pipe on the right side of the condenser due to the existence of the first partition plate, and then flows out from the third pipeline;

for the second condenser: i) the refrigerant enters from the second pipeline of the second condenser, and can only flow downwards through the flat pipe on the left side of the condenser due to the existence of the fourth partition plate, ii) the refrigerant can only flow upwards through the flat pipe in the middle of the condenser due to the existence of the sixth partition plate, and iii) the refrigerant finally flows downwards through the flat pipe on the right side of the condenser due to the existence of the first partition plate, and then flows out from the fourth pipeline.

7. The heat exchange method according to claim 5, wherein the heat pump heating mode specifically comprises:

firstly, when the first condenser defrosts and the second condenser condenses, the first motor controls the first grating to open, and the first grating drives the second grating to open through the first grating connecting rod, so that defrosting is realized;

when the second condenser is defrosted and the first condenser is condensed, the second motor controls the third grating to be opened, and the third grating drives the fourth grating to be opened through the second grating connecting rod, so that defrosting is realized;

when the first condenser and the second condenser are started to defrost simultaneously, the first grating, the second grating, the third grating and the fourth grating are all opened;

and fourthly, when the first condenser and the second condenser condense simultaneously, the first grille, the second grille, the third grille and the fourth grille are closed.