CN110553418A - Multi-connected refrigerator - Google Patents
Multi-connected refrigerator Download PDFInfo
- Publication number
- CN110553418A CN110553418A CN201910821326.3A CN201910821326A CN110553418A CN 110553418 A CN110553418 A CN 110553418A CN 201910821326 A CN201910821326 A CN 201910821326A CN 110553418 A CN110553418 A CN 110553418A
- Authority
- CN
- China
- Prior art keywords
- module
- communicated
- reversing valve
- way reversing
- temperature sensor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B13/00—Compression machines, plants or systems, with reversible cycle
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
The invention discloses a multi-connected refrigerator, which comprises: the module A and the module B are connected with the plurality of internal machines; the module A and the module B have the same structure, and the internal machine structures are the same; the module a and the module B include: the direct-current frequency conversion compressor is communicated with the oil separator, the oil separator is communicated with the four-way reversing valve, the four-way reversing valve is respectively communicated with the heat exchanger, the direct-current frequency conversion compressor and the stop valves, the heat exchanger is communicated with the liquid storage device, the liquid storage device is communicated with the filter, the filter is communicated with the liquid observation mirror, the filter is communicated with the two stop valves, and the two stop valves are connected with the air cooler. Under the condition of load change, the invention flexibly adjusts the operating frequency of the direct current variable frequency compressor by collecting the operating parameters of each stage in the refrigeration system, thereby realizing rapid cooling.
Description
Technical Field
The invention relates to a multi-connected refrigerator, and belongs to the technical field of refrigeration engineering.
Background
The refrigerator is a mechanical device for achieving low-temperature refrigeration by changing pressure change of refrigerant gas through a compressor. The compressor used is different from the common air compressor due to the different use conditions and the different compressed working media. According to the difference of the structure and the working principle of the refrigerator, the refrigerator is similar to an air compressor and can be divided into a piston type, a screw type, a centrifugal type and other different forms. Freezers are one of the most important components of compression refrigeration equipment. The refrigerating machine is composed of compressor, condenser, evaporator, drying filter and expansion throttle valve which are connected in series, and the proper quantity of refrigerant is filled in the refrigerating machine, and the compressor is controlled by electric appliance according to the requirement of environment so as to attain the goal of refrigeration and heat transfer. In general, there are two types of refrigerators, water-cooled and air-cooled. The water-cooled refrigeration device has better water-cooled refrigeration effect, needs cooling water, is flexible and convenient in air-cooled mode, does not need cooling water, and is suitable for water-deficient areas or occasions needing to be moved. The working medium of the refrigerator is the refrigerant which is used for transferring heat in the refrigerating system, and the common refrigerants are as follows: freon, ammonia, lithium bromide, chloromethane and the like, wherein the Freon has a plurality of types such as fluorine 11(R-11), fluorine 12(R-12), fluorine 13(R-13), fluorine 21(R-21), fluorine 22(R-22), fluorine 113(R-113), fluorine 114(R-114), fluorine 142(R-142) and the like according to the gasification temperature and the chemical molecular formula. The refrigerant can be respectively used in low-pressure (the condensation pressure is less than 0.3-0.3MPa), high-temperature (the evaporation temperature is more than 0 ℃), medium-pressure (the condensation pressure is 1-2MPa), medium-temperature (the evaporation temperature is 0-50 ℃) and high-pressure (the condensation pressure is more than 2MPa) low-temperature (the evaporation temperature is less than-50 ℃) refrigeration systems.
the conventional refrigeration system has the following defects: (1) the traditional alternating-current compressor is used, so that the refrigeration efficiency is low; (2) the traditional compression condensing unit does not have multi-connection control, is not standard during large engineering installation, and the system operation efficiency cannot be guaranteed. For this reason, a corresponding technical scheme needs to be designed for solution.
disclosure of Invention
The invention aims to provide a multi-connected refrigerator, which is energy-saving and environment-friendly, and can flexibly adjust the operating frequency of a direct-current variable-frequency compressor by acquiring the operating parameters of each stage in a refrigeration system under the condition of load change to realize rapid cooling, and an inner machine can be opened or closed according to actual use, so that the use is more flexible and energy-saving.
In order to solve the problems, the technical scheme adopted by the invention is as follows:
A multi-connected refrigerator mainly comprises: the module A and the module B are connected with the first inner machine, the second inner machine and the third inner machine through pipelines;
The module A and the module B have the same structure, and the first inner machine, the second inner machine and the third inner machine have the same structure;
The module A and the module B mainly comprise: the air cooler comprises a direct-current variable-frequency compressor, a four-way reversing valve, a heat exchanger, an oil separator, a liquid storage device, a filter, a liquid viewing mirror and stop valves, wherein the first inner machine, the second inner machine and the third inner machine are air coolers, the direct-current variable-frequency compressor is communicated with the oil separator, the oil separator is communicated with the four-way reversing valve, the four-way reversing valve is respectively communicated with the heat exchanger, the direct-current variable-frequency compressor and the stop valves, the heat exchanger is communicated with the liquid storage device, the liquid storage device is communicated with the filter, the filter is communicated with the liquid viewing mirror, the filter is communicated with the two stop valves, and the two stop valves are connected with the.
As an improvement of the technical scheme, a first pressure sensor and a first temperature sensor are respectively arranged on connecting pipes of the oil separator and the four-way reversing valve, a second pressure sensor and a second temperature sensor are respectively arranged on connecting pipes of the four-way reversing valve and the direct-current variable-frequency compressor, and a third temperature sensor is arranged on a connecting pipe of the heat exchanger and the liquid reservoir.
As an improvement of the above technical solution, the multiple-unit refrigerator further includes a controller used in cooperation, wherein the first pressure sensor, the first temperature sensor, the second pressure sensor, the second temperature sensor, and the four-way reversing valve are all connected to the controller through wires.
as an improvement of the technical scheme, the controller converts voltage or current signals of the first pressure sensor, the first temperature sensor, the second pressure sensor and the second temperature sensor into temperature and pressure data.
As an improvement of the technical scheme, the controller outputs signals for controlling the direct-current variable-frequency compressor and the four-way reversing valve through signals of temperature and pressure and through software setting and calculation.
As an improvement of the technical scheme, the module A and the module B are connected through a communication line, and the machine is uniformly managed through a controller, so that the running frequency of the compressor can be automatically adjusted according to the load change of the internal machine.
Compared with the prior art, the invention has the following implementation effects:
The invention uses the direct current frequency conversion compressor to match with the four-way reversing valve to ensure that the system runs stably and reliably, and the system has higher efficiency in refrigeration by combining the intelligent controller.
The invention mainly solves the defects of the traditional refrigerating device and has the following advantages:
(1) When the refrigeration system is in operation, the set temperature can be quickly reached through the direct-current variable-frequency compressor and the controller according to the condition of load in a variable-frequency mode, when the system frosts, the temperature change in the refrigeration house is less, and the energy consumption is lower than that of a traditional unit.
(2) Compared with the conventional fixed-frequency compressor, the direct-current variable-frequency compressor is used, the refrigeration efficiency of the compressor is higher, the running variable frequency can be changed through the signal of the controller, the temperature can reach the set value more quickly, and the temperature fluctuation is smaller.
(3) Compared with a conventional condensing unit, the outdoor unit module can be subjected to a plurality of connected centralized controls, and meanwhile, the indoor unit can also be subjected to a plurality of communication connections, so that the outdoor unit module is more flexible in installation and use, and higher in operation efficiency.
(4) The invention collects the signals of various sensors in the controller, and the controller controls the direct-current variable-frequency compressor and the four-way reversing valve through preset software, thereby realizing automatic and efficient system operation.
Drawings
FIG. 1 is a block diagram of a multiple chiller system according to the present invention;
fig. 2 is a schematic structural diagram of a controller PCB according to the present invention.
Detailed Description
The present invention will be described with reference to specific examples.
Example (b): as shown in fig. 1 and 2: a multi-connected refrigerator mainly comprises: the module a and the module B are connected with the first internal machine, the second internal machine and the third internal machine through pipelines; the module A and the module B have the same structure, and the first inner machine, the second inner machine and the third inner machine have the same structure.
Specifically, the modules a and B mainly include: the device comprises a direct-current variable-frequency compressor 1, a four-way reversing valve 2, a heat exchanger 3, an oil separator 4, a liquid reservoir 5, a filter 6, a liquid viewing mirror 7 and stop valves 8, wherein the first inner machine, the second inner machine and the third inner machine are air coolers 17 (fourth temperature sensors 16 matched with the air coolers 17 are arranged on the air coolers 17), the direct-current variable-frequency compressor 1 is communicated with the oil separator 4, the oil separator 4 is communicated with the four-way reversing valve 2, the four-way reversing valve 2 is respectively communicated with the heat exchanger 3, the direct-current variable-frequency compressor 1 and the stop valves 8, the heat exchanger 3 is communicated with the liquid reservoir 5, the liquid reservoir 5 is communicated with the filter 6, the filter 6 is communicated with the liquid viewing mirror 7, the filter 6 is communicated with the two stop valves; a first pressure sensor 9 and a first temperature sensor 10 are respectively arranged on connecting pipes of the oil separator 4 and the four-way reversing valve 2, a second pressure sensor 11 and a second temperature sensor 13 are respectively arranged on connecting pipes of the four-way reversing valve 2 and the direct-current variable-frequency compressor 1, and a third temperature sensor 12 is arranged on a connecting pipe of the heat exchanger 3 and the liquid reservoir 5; the multi-connected refrigerator also comprises a controller 14 which is matched with the multi-connected refrigerator, wherein the first pressure sensor 9, the first temperature sensor 10, the second pressure sensor 11, the second temperature sensor 13, the third temperature sensor 12 and the four-way reversing valve 2 are all connected to the controller 14 through leads, the controller 14 converts voltage or current signals of the first pressure sensor 9, the first temperature sensor 10, the second pressure sensor 11, the second temperature sensor 13 and the third temperature sensor 12 into temperature and pressure data, and the controller 14 outputs signals for controlling the direct-current frequency conversion compressor 1 and the four-way reversing valve 2 through the signals of the temperature and the pressure and through the setting and calculation of software. The invention uses the direct current frequency conversion compressor to match with the four-way reversing valve to ensure that the system runs stably and reliably, and the system has higher efficiency in refrigeration by combining the intelligent controller. When the refrigeration system is in operation, the set temperature can be quickly reached through frequency conversion according to the load condition through the direct-current variable-frequency compressor 1 and the controller 14, the temperature change in the refrigeration house is less when the system is frosted, and the energy consumption is lower than that of a traditional unit; firstly, compared with a conventional fixed-frequency compressor, the direct-current variable-frequency compressor 1 is used, the refrigeration efficiency of the compressor is higher, the running variable frequency can be changed through a signal of a controller, the temperature can reach a set value more quickly, and the temperature fluctuation is smaller; compared with a conventional condensing unit, the outdoor unit module can be subjected to multiple connection centralized control, and the indoor unit can also be subjected to multiple communication connections, so that the outdoor unit module is more flexible in installation and use and higher in operation efficiency; thirdly, signals of various sensors are collected in the controller, and the controller controls the direct-current variable-frequency compressor 1 and the four-way reversing valve 2 through preset software, so that automatic and efficient system operation is realized.
More specifically, module a and module B are connected through a communication line, and the machine is managed by controller 14 in a unified manner, so that the operation frequency of the compressor can be automatically adjusted according to the load change of the internal machine.
The foregoing is a detailed description of the invention with reference to specific embodiments, and the practice of the invention is not to be construed as limited thereto. For those skilled in the art to which the invention pertains, several simple deductions or substitutions can be made without departing from the spirit of the invention, and all shall be considered as belonging to the protection scope of the invention.
Claims (6)
1. A multiple freezer, comprising: the method mainly comprises the following steps: the module A and the module B are connected with the first inner machine, the second inner machine and the third inner machine through pipelines; the module A and the module B have the same structure, and the first inner machine, the second inner machine and the third inner machine have the same structure; the module A and the module B mainly comprise: the air conditioner comprises a direct-current variable-frequency compressor (1), a four-way reversing valve (2), a heat exchanger (3), an oil separator (4), a liquid reservoir (5), a filter (6), a liquid viewing mirror (7) and stop valves (8), wherein the first inner machine, the second inner machine and the third inner machine are air coolers (17), the direct-current variable-frequency compressor (1) is communicated with the oil separator (4), the oil separator (4) is communicated with the four-way reversing valve (2), the four-way reversing valve (2) is respectively communicated with the heat exchanger (3), the direct-current variable-frequency compressor (1) and the stop valves (8), the heat exchanger (3) is communicated with the liquid reservoir (5), the liquid reservoir (5) is communicated with the filter (6), the filter (6) is communicated with the liquid viewing mirror (7), and the filter (6) is communicated with the two stop valves (8), and the two stop valves (8) are connected with an air cooler (17).
2. The multiple freezer according to claim 1, wherein: the oil separator is characterized in that a first pressure sensor (9) and a first temperature sensor (10) are respectively arranged on connecting pipes of the oil separator (4) and the four-way reversing valve (2), a second pressure sensor (11) and a second temperature sensor (13) are respectively arranged on connecting pipes of the four-way reversing valve (2) and the direct-current variable-frequency compressor (1), and a third temperature sensor (12) is arranged on connecting pipes of the heat exchanger (3) and the liquid storage device (5).
3. The multiple freezer according to claim 2, wherein: the multi-connected refrigerator also comprises a controller (14) which is matched with the multi-connected refrigerator, wherein the first pressure sensor (9), the first temperature sensor (10), the second pressure sensor (11), the second temperature sensor (13), the third temperature sensor (12) and the four-way reversing valve (2) are connected to the controller (14) through leads.
4. The multiple freezer according to claim 3, wherein: the controller (14) converts voltage or current signals of the first pressure sensor (9), the first temperature sensor (10), the second pressure sensor (11), the second temperature sensor (13) and the third temperature sensor (12) into temperature and pressure data.
5. The multiple freezer according to claim 4, wherein: the controller (14) outputs signals for controlling the direct-current variable-frequency compressor (1) and the four-way reversing valve (2) through signals of temperature and pressure and through software setting and calculation.
6. The multiple freezer according to claim 5, wherein: the module A and the module B are connected through a communication line, and the machine is uniformly managed through a controller (14), so that the running frequency of the compressor can be automatically adjusted according to the load change of the internal machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910821326.3A CN110553418A (en) | 2019-09-02 | 2019-09-02 | Multi-connected refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910821326.3A CN110553418A (en) | 2019-09-02 | 2019-09-02 | Multi-connected refrigerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110553418A true CN110553418A (en) | 2019-12-10 |
Family
ID=68738678
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910821326.3A Pending CN110553418A (en) | 2019-09-02 | 2019-09-02 | Multi-connected refrigerator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110553418A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0237265A (en) * | 1988-07-28 | 1990-02-07 | Matsushita Electric Ind Co Ltd | Heat pump type air conditioner |
| CN1467462A (en) * | 2002-07-03 | 2004-01-14 | Lg电子株式会社 | Defrosting apparatus of air conditioner and method thereof |
| CN1506635A (en) * | 2002-12-10 | 2004-06-23 | Lg������ʽ���� | Central controlling multi-machine air conditioning system |
| CN201014831Y (en) * | 2006-12-30 | 2008-01-30 | 青岛海信空调有限公司 | DC inverter air-conditioner |
| CN101198831A (en) * | 2005-06-15 | 2008-06-11 | 大金工业株式会社 | Refrigerating unit |
| CN201449081U (en) * | 2009-07-24 | 2010-05-05 | 珠海格力电器股份有限公司 | Modularized multi-connected air conditioning unit |
| CN103292427A (en) * | 2012-02-29 | 2013-09-11 | 日立空调·家用电器株式会社 | Air conditioner |
| CN203785152U (en) * | 2014-04-20 | 2014-08-20 | 倪仁建 | Evaporation and condensation type heating and cooling air conditioner |
| CN107642835A (en) * | 2017-10-16 | 2018-01-30 | 广东美的暖通设备有限公司 | Multi-connected machine outdoor unit and there is its multi-connected machine |
| CN108019971A (en) * | 2016-11-03 | 2018-05-11 | 威海桦众节能设备有限公司 | A kind of ultra-low-loop temperature air source heat pump with backheat |
-
2019
- 2019-09-02 CN CN201910821326.3A patent/CN110553418A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0237265A (en) * | 1988-07-28 | 1990-02-07 | Matsushita Electric Ind Co Ltd | Heat pump type air conditioner |
| CN1467462A (en) * | 2002-07-03 | 2004-01-14 | Lg电子株式会社 | Defrosting apparatus of air conditioner and method thereof |
| CN1506635A (en) * | 2002-12-10 | 2004-06-23 | Lg������ʽ���� | Central controlling multi-machine air conditioning system |
| CN101198831A (en) * | 2005-06-15 | 2008-06-11 | 大金工业株式会社 | Refrigerating unit |
| CN201014831Y (en) * | 2006-12-30 | 2008-01-30 | 青岛海信空调有限公司 | DC inverter air-conditioner |
| CN201449081U (en) * | 2009-07-24 | 2010-05-05 | 珠海格力电器股份有限公司 | Modularized multi-connected air conditioning unit |
| CN103292427A (en) * | 2012-02-29 | 2013-09-11 | 日立空调·家用电器株式会社 | Air conditioner |
| CN203785152U (en) * | 2014-04-20 | 2014-08-20 | 倪仁建 | Evaporation and condensation type heating and cooling air conditioner |
| CN108019971A (en) * | 2016-11-03 | 2018-05-11 | 威海桦众节能设备有限公司 | A kind of ultra-low-loop temperature air source heat pump with backheat |
| CN107642835A (en) * | 2017-10-16 | 2018-01-30 | 广东美的暖通设备有限公司 | Multi-connected machine outdoor unit and there is its multi-connected machine |
Non-Patent Citations (2)
| Title |
|---|
| 吴业正: "《制冷原理及设备（第4版）》", 31 December 2015 * |
| 肖凤明: "《中央空调器模块机疑难故障维修笔记》", 31 December 2014 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106642416B (en) | Air conditioning system, composite condenser and operation control method and device of air conditioning system | |
| CN103175344B (en) | Cold-region used multi-connected heat pump system and control method thereof | |
| CN202675464U (en) | Energy-saving intelligent air conditioning system for communication base station | |
| CN106855279B (en) | Air conditioning system, refrigeration control method and device | |
| CN202229351U (en) | Special energy-saving air conditioner for dual-working-condition communication | |
| CN106440137A (en) | Energy saving air conditioner system and refrigeration method | |
| CN111271831B (en) | Air conditioning system, and operation control method and device of air conditioning system | |
| CN207515299U (en) | A kind of refrigeration system and air-conditioning system | |
| CN111928512B (en) | Cold-hot combined multistage compression circulation system and control method | |
| CN102494375A (en) | Ultrahigh and low-temperature refrigerating, heating and water heating three-purpose air-conditioning system | |
| CN107830666A (en) | A kind of refrigeration system and air-conditioning system | |
| CN210832348U (en) | Multi-connected refrigerating system | |
| CN104776524A (en) | Multi-connected refrigerating system with natural cooling function, and control method thereof | |
| CN110553418A (en) | Multi-connected refrigerator | |
| CN110617591A (en) | Intelligent vortex injection energy-saving air conditioner | |
| CN212987691U (en) | Distributed multi-connected refrigeration house refrigerating system | |
| CN104807248B (en) | A kind of centralized cold and heat source system for workshop circulation | |
| CN204574320U (en) | With naturally cold multi-connection refrigeration system | |
| CN110553438A (en) | Unit type refrigerator | |
| CN110553437A (en) | Hot defrosting direct current frequency conversion compression condensing unit | |
| CN210320722U (en) | Refrigeration heat pump device of R410a refrigerant | |
| CN115342546A (en) | Multi-connected refrigerator | |
| CN110044132B (en) | Control method of propylene flooded refrigeration system | |
| CN115388574A (en) | Unit type refrigerator | |
| CN203454441U (en) | Environment protective refrigerant magnetic suspension high efficiency water chilling unit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20191210 |
|
| WD01 | Invention patent application deemed withdrawn after publication |