CN203550068U - Multi-split system, multi-split system outdoor machine and outdoor machine unit of multi-split system outdoor machine - Google Patents

Multi-split system, multi-split system outdoor machine and outdoor machine unit of multi-split system outdoor machine Download PDF

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Publication number
CN203550068U
CN203550068U CN201320614577.2U CN201320614577U CN203550068U CN 203550068 U CN203550068 U CN 203550068U CN 201320614577 U CN201320614577 U CN 201320614577U CN 203550068 U CN203550068 U CN 203550068U
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China
Prior art keywords
outdoor unit
machine
output
communicated
condenser
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CN201320614577.2U
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Chinese (zh)
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刘红斌
高德福
杨世清
陈海帆
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Guangdong Chigo Heating and Ventilation Equipment Co Ltd
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Guangdong Chigo Heating and Ventilation Equipment Co Ltd
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

Abstract

The utility model discloses a multi-split system, a multi-split system outdoor machine and an outdoor machine unit of the multi-split system outdoor machine. The outdoor machine unit is used in the multi-split system outdoor machine and comprises a condenser (8), a compressor and a plate heat exchanger (12), wherein an output end of the condenser (8) is provided with a super-cooling degree regulating pipeline which is communicated with a first heat exchange pipeline of the plate heat exchanger (12), and a main pipeline which is communicated with a second heat exchange pipeline of the plate heat exchanger (12), the super-cooling degree regulating pipeline is connected with an electronic expansion valve (11), and an output end of the first heat exchange pipeline is communicated with the compressor. According to the outdoor machine unit disclosed by the utility model, the super-cooling degree of a refrigerant is increased, and the refrigerating capacity and the energy efficiency of the multi-split system are increased.

Description

Multi-connected machine system, multi-connected machine system off-premises station and outdoor unit thereof
Technical field
The utility model relates to technical field of refrigeration equipment, particularly a kind of multi-connected machine system, multi-connected machine system off-premises station and outdoor unit thereof.
Background technology
Multi-connected machine is commonly called as " one drag many ", refers to an off-premises station and connects many indoor sets by pipe arrangement.The plurality of advantages such as that multi-connected machine system has is energy-conservation, comfortable, smooth running, and each room can independently regulate, and can meet the not demand of the different air conditioner loads of chummery.In small and medium construction and part public building, obtain increasingly extensive application.
At present, in the multi-connected machine system on market, can be in the applications with longer pipe arrangement and Geng Gao drop, for the also raising thereupon of performance requirement of multi-connected machine to multi-connected machine system.Due in long pipe arrangement and high drop, in system, overcome pressure drop and make the degree of supercooling of refrigerant can lose major part, make in system degree of supercooling less, so make system capability and system energy efficiency lower.
Therefore, how improving refrigerant degree of supercooling, improve cooling system ability and efficiency, is the art personnel problem demanding prompt solutions.
Utility model content
In view of this, the utility model provides a kind of outdoor unit, to improve refrigerant degree of supercooling, improves cooling system ability and efficiency.The utility model also provides a kind of multi-connected machine system and multi-connected machine system off-premises station.
For achieving the above object, the utility model provides following technical scheme:
The utility model provides a kind of outdoor unit, for multi-connected machine system off-premises station, comprise condenser and compressor, also comprise plate type heat exchanger, the output of described condenser has the degree of supercooling adjusting pipeline being communicated with the first heat exchange pipeline of described plate type heat exchanger and the main line being communicated with the second heat exchange pipeline of described plate type heat exchanger, described degree of supercooling regulates on pipeline and is connected with electric expansion valve, and the output of described the first heat exchanging pipe is communicated with described compressor.
Preferably, in above-mentioned outdoor unit, also comprise the orifice union of the output that is arranged at described condenser.
Preferably, in above-mentioned outdoor unit, described orifice union is arranged between described condenser and described plate type heat exchanger.
Preferably, in above-mentioned outdoor unit, described orifice union comprises magnetic valve and two throttling electric expansion valves of the output that is parallel to described condenser.
Preferably, in above-mentioned outdoor unit, also comprise the check valve of connecting with described magnetic valve.
Preferably, in above-mentioned outdoor unit, also comprise controller for controlling the open degree of electric expansion valve, for detection of the temperature sensor of system temperature and for detection of the pressure sensor of system pressure; Described temperature sensor and described pressure sensor and the communication connection of described controller.
Preferably, in above-mentioned outdoor unit, the output of described the first heat exchanging pipe is communicated with the gas-liquid separator of described outdoor unit.
Preferably, in above-mentioned outdoor unit, also comprise the high pressure accumulator tank being communicated with the output of described the second heat exchanging pipe.
The utility model also provides a kind of multi-connected machine system off-premises station, comprises a plurality of outdoor units, and described outdoor unit is the outdoor unit as described in above-mentioned any one.
The utility model also provides a kind of multi-connected machine system, comprises multi-connected machine system off-premises station, and described multi-connected machine system off-premises station is multi-connected machine system off-premises station as above.
From above-mentioned technical scheme, can find out, the outdoor unit that the utility model provides, output by condenser separates degree of supercooling adjusting pipeline and supplies the mobile main line of refrigerant, by electric expansion valve, to degree of supercooling, regulate the refrigerant in pipeline to carry out step-down cooling, and flow into the first heat exchanging pipe of plate type heat exchanger, carry out heat exchange with the refrigerant in the second heat exchanging pipe in plate type heat exchanger, reduced the refrigerant temperature in main line, and then improved the degree of supercooling of refrigerant in main line, improved refrigerating capacity and the efficiency of multi-connected machine system.
The utility model also provides a kind of multi-connected machine system off-premises station and multi-connected machine system with above-mentioned outdoor unit.Because above-mentioned outdoor unit has above-mentioned technique effect, multi-connected machine system off-premises station and the multi-connected machine system with above-mentioned outdoor unit also should have same technique effect, at this, tire out and state no longer one by one.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
The structural representation of the outdoor unit that Fig. 1 provides for the utility model embodiment.
Wherein,
The first compressor-1, check valve-2, high-voltage switch gear-3, high pressure sensor-4, oil eliminator-5, the second compressor-6, cross valve-7, condenser-8, magnetic valve-9, throttling electric expansion valve-10, electric expansion valve-11, plate type heat exchanger-12, high pressure accumulator tank-13, low tension switch-14, high pressure valve-15, low pressure valve-16, oily balanced valve-17, gas-liquid separator-18 and low pressure sensor-19.
The specific embodiment
The utility model discloses a kind of outdoor unit, to improve refrigerant degree of supercooling, improve cooling system ability and efficiency.The utility model also provides a kind of multi-connected machine system and multi-connected machine system off-premises station.
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, rather than whole embodiment.Embodiment based in the utility model, those of ordinary skills are not making the every other embodiment obtaining under creative work prerequisite, all belong to the scope of the utility model protection.
Please refer to Fig. 1, the structural representation of the outdoor unit that Fig. 1 provides for the utility model embodiment.
The utility model embodiment provides a kind of outdoor unit, for multi-connected machine system off-premises station, comprise condenser 8 and compressor, also comprise plate type heat exchanger 12, the output of condenser 8 has the degree of supercooling adjusting pipeline being communicated with the first heat exchange pipeline of plate type heat exchanger 12 and the main line being communicated with the second heat exchange pipeline of plate type heat exchanger 12, degree of supercooling regulates the output that is connected with electric expansion valve 11, the first heat exchanging pipes on pipeline to be communicated with compressor.
It should be noted that, plate type heat exchanger 12 has two heat exchange pipelines, is respectively the first heat exchange pipeline and the second heat exchange pipeline, by the heat between the first heat exchange pipeline and the second heat exchange pipeline, has conducted the heat exchange operation between both inner fluids.
The outdoor unit that the utility model embodiment provides, output by condenser 8 separates degree of supercooling adjusting pipeline and supplies the mobile main line of refrigerant, by 11 pairs of degree of supercoolings of electric expansion valve, regulate the refrigerant in pipeline to carry out step-down cooling, and flow into the first heat exchanging pipe of plate type heat exchanger 12, carry out heat exchange with the refrigerant in the second heat exchanging pipe in plate type heat exchanger 12, reduced the refrigerant temperature in main line, and then improved the degree of supercooling of refrigerant in main line, improved refrigerating capacity and the efficiency of multi-connected machine system.
Further, also comprise the orifice union of the output that is arranged at condenser 8, so that the degree of supercooling of refrigerant in system is done to further adjustment, and, the convenient degree of superheat that regulates.
In the present embodiment, preferably orifice union is arranged between condenser 8 and plate type heat exchanger 12.Also can be arranged on the main line being connected with the output of the second heat exchange pipeline of plate type heat exchanger 12.
In the present embodiment, orifice union comprises magnetic valve 9 and two throttling electric expansion valves 10 of the output that is parallel to condenser 8.By controlling the open degree of magnetic valve 9, regulate the coolant quantity of two the throttling electric expansion valves 10 of flowing through.Also throttling electric expansion valve 10 can be set to other quantity, as 1 or 3, at this, introduce no longer one by one and all within protection domain.
In order to improve system run all right, also comprise the check valve 2 of connecting with magnetic valve 9, with the refrigerant of the magnetic valve 9 of avoiding flowing through, reflux.
Further, for the ease of controlling, the outdoor unit that the utility model embodiment provides also comprises controller for controlling the open degree of electric expansion valve 11, for detection of the temperature sensor of system temperature and for detection of the pressure sensor of system pressure; Temperature sensor and pressure sensor and controller communication connection.Wherein, pressure sensor comprises high pressure sensor 4 and low pressure sensor 19, and high pressure sensor 4 place pipelines are in series with high-voltage switch gear 3, and low pressure sensor 19 place pipelines are in series with low tension switch 14.
The output of the first heat exchanging pipe is communicated with the gas-liquid separator of outdoor unit 18.The refrigerant in the first heat exchanging pipe flows into gas-liquid separator 18 after heat exchange, then flows into the air inlet of compressor.It should be noted that, the compressor in the outdoor unit that the present embodiment provides comprises the first compressor 1 and the second compressor 6, and the coolant distribution being flowed out by gas-liquid separator 18 enters in the first compressor 1 and the second compressor 6.Wherein, in the first compressor 1 and the second compressor 6, one is DC frequency-changeable compressor, and another is constant speed compressor; Also can be DC frequency-changeable compressor.Also the output of the first heat exchanging pipe directly can be communicated with compressor, at this, introduce no longer one by one and all within protection domain.
Preferably, also comprise the high pressure accumulator tank 13 being communicated with the output of the second heat exchanging pipe.The output of high pressure accumulator tank 13 is communicated with the high pressure valve 15 that is connected a plurality of outdoor units in multi-connected machine system off-premises station.By increasing high pressure accumulator tank 13, improved control effect.
As shown in Figure 1, outdoor unit comprises compressor, oil eliminator 5, gas-liquid separator 18, cross valve 7 and condenser 8, wherein, high pressure sensor 4 is arranged on the connecting line of compressor and oil eliminator 5, and low pressure sensor 19 is arranged on the connecting line of gas-liquid separator 18 and compressor.A plurality of outdoor units connect by oily balanced valve 17, high pressure valve 15 and low pressure valve 16, form multi-connected machine system off-premises station.
A kind of multi-connected machine system of the utility model embodiment off-premises station, comprises a plurality of outdoor units, and outdoor unit is as above-mentioned any outdoor unit.Because above-mentioned outdoor unit has above-mentioned effect, the multi-connected machine system off-premises station with above-mentioned outdoor unit also should have same technique effect, at this, introduces no longer one by one and all within protection domain.
The utility model also provides a kind of multi-connected machine system, comprises multi-connected machine system off-premises station, and multi-connected machine system off-premises station is connected with a plurality of indoor sets, has formed multi-connected machine system.Wherein, multi-connected machine system off-premises station is the multi-connected machine system off-premises station in above-described embodiment.
In this description, each embodiment adopts the mode of going forward one by one to describe, and each embodiment stresses is the difference with other embodiment, between each embodiment identical similar part mutually referring to.
Above-mentioned explanation to the disclosed embodiments, makes professional and technical personnel in the field can realize or use the utility model.To the multiple modification of these embodiment, will be apparent for those skilled in the art, General Principle as defined herein can, in the situation that not departing from spirit or scope of the present utility model, realize in other embodiments.Therefore, the utility model will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.

Claims (10)

1. an outdoor unit, for multi-connected machine system off-premises station, comprise condenser (8) and compressor, it is characterized in that, also comprise plate type heat exchanger (12), the output of described condenser (8) has the degree of supercooling adjusting pipeline being communicated with the first heat exchange pipeline of described plate type heat exchanger (12) and the main line being communicated with the second heat exchange pipeline of described plate type heat exchanger (12), described degree of supercooling regulates on pipeline and is connected with electric expansion valve (11), and the output of described the first heat exchanging pipe is communicated with described compressor.
2. outdoor unit as claimed in claim 1, is characterized in that, also comprises the orifice union of the output that is arranged at described condenser (8).
3. outdoor unit as claimed in claim 2, is characterized in that, described orifice union is arranged between described condenser (8) and described plate type heat exchanger (12).
4. outdoor unit as claimed in claim 2 or claim 3, is characterized in that, described orifice union comprises magnetic valve (9) and two throttling electric expansion valves (10) of the output that is parallel to described condenser (8).
5. outdoor unit as claimed in claim 4, is characterized in that, also comprises the check valve (2) of connecting with described magnetic valve (9).
6. outdoor unit as claimed in claim 1, is characterized in that, also comprises controller for controlling the open degree of electric expansion valve (11), for detection of the temperature sensor of system temperature and for detection of the pressure sensor of system pressure; Described temperature sensor and described pressure sensor and the communication connection of described controller.
7. outdoor unit as claimed in claim 1, is characterized in that, the output of described the first heat exchanging pipe is communicated with the gas-liquid separator of described outdoor unit (18).
8. outdoor unit as claimed in claim 1, is characterized in that, also comprises the high pressure accumulator tank (13) being communicated with the output of described the second heat exchanging pipe.
9. a multi-connected machine system off-premises station, comprises a plurality of outdoor units, it is characterized in that, described outdoor unit is the outdoor unit as described in claim 1-8 any one.
10. a multi-connected machine system, comprises multi-connected machine system off-premises station, it is characterized in that, described multi-connected machine system off-premises station is multi-connected machine system off-premises station as claimed in claim 9.
CN201320614577.2U 2013-09-30 2013-09-30 Multi-split system, multi-split system outdoor machine and outdoor machine unit of multi-split system outdoor machine Active CN203550068U (en)

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Application Number Priority Date Filing Date Title
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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104197582A (en) * 2014-09-01 2014-12-10 广东志高暖通设备股份有限公司 Multi-connection air conditioning system
CN104214985A (en) * 2014-09-01 2014-12-17 广东志高暖通设备股份有限公司 Multi-split air conditioning system and low-temperature refrigeration method
CN104236170A (en) * 2014-09-30 2014-12-24 广东志高暖通设备股份有限公司 VRF air conditioning system, oil balancing device of VRF air conditioning system and control method of VRF air conditioning system
CN104236169A (en) * 2014-09-30 2014-12-24 宁波奥克斯电气有限公司 Oil return control method for fully constant frequency multi-connected air conditioning unit
CN104266416A (en) * 2014-09-29 2015-01-07 特灵空调系统(中国)有限公司 Multi-split air conditioner throttling and super-cooling control mechanism
CN105987535A (en) * 2015-02-03 2016-10-05 宁波奈兰环境系统有限公司 High-capacity multi-split air-condition heat pump unit for ultra-long-distance conveying of refrigerant
CN106403337A (en) * 2016-09-27 2017-02-15 广东志高暖通设备股份有限公司 Multi-split system

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104197582A (en) * 2014-09-01 2014-12-10 广东志高暖通设备股份有限公司 Multi-connection air conditioning system
CN104214985A (en) * 2014-09-01 2014-12-17 广东志高暖通设备股份有限公司 Multi-split air conditioning system and low-temperature refrigeration method
CN104197582B (en) * 2014-09-01 2017-04-19 广东志高暖通设备股份有限公司 Multi-connection air conditioning system
CN104266416A (en) * 2014-09-29 2015-01-07 特灵空调系统(中国)有限公司 Multi-split air conditioner throttling and super-cooling control mechanism
CN104236170A (en) * 2014-09-30 2014-12-24 广东志高暖通设备股份有限公司 VRF air conditioning system, oil balancing device of VRF air conditioning system and control method of VRF air conditioning system
CN104236169A (en) * 2014-09-30 2014-12-24 宁波奥克斯电气有限公司 Oil return control method for fully constant frequency multi-connected air conditioning unit
CN105987535A (en) * 2015-02-03 2016-10-05 宁波奈兰环境系统有限公司 High-capacity multi-split air-condition heat pump unit for ultra-long-distance conveying of refrigerant
CN106403337A (en) * 2016-09-27 2017-02-15 广东志高暖通设备股份有限公司 Multi-split system

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