CN209201441U - A kind of double cold source cooling connector devices of network cabinet - Google Patents

A kind of double cold source cooling connector devices of network cabinet Download PDF

Info

Publication number
CN209201441U
CN209201441U CN201821480439.9U CN201821480439U CN209201441U CN 209201441 U CN209201441 U CN 209201441U CN 201821480439 U CN201821480439 U CN 201821480439U CN 209201441 U CN209201441 U CN 209201441U
Authority
CN
China
Prior art keywords
air
channel
valve
flow
cabinet
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.)
Active
Application number
CN201821480439.9U
Other languages
Chinese (zh)
Inventor
钟亚呋
王瑞京
侍成兵
曹秋枫
曹祥虎
李健
李倩
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nanjing Jizuo Network Polytron Technologies Inc
Original Assignee
Nanjing Jizuo Network Polytron Technologies Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nanjing Jizuo Network Polytron Technologies Inc filed Critical Nanjing Jizuo Network Polytron Technologies Inc
Priority to CN201821480439.9U priority Critical patent/CN209201441U/en
Application granted granted Critical
Publication of CN209201441U publication Critical patent/CN209201441U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Air-Conditioning Room Units, And Self-Contained Units In General (AREA)

Abstract

The utility model provides a kind of double cold source cooling connector devices of network cabinet, including return air channel, the return air channel have return air channel air outlet, the return air inlet for being connected to interior of equipment cabinet connecting for the return air inlet for air-conditioner with air conditioner;Air-flow switching channel, the air-flow switching channel have the air-flow switching channel air inlet connecting for the air conditioner air outlet with air conditioner, for by the heat extraction mouth outside air-flow discharge system;Xingfeng capsule channel, the Xingfeng capsule channel have the air outlet for being connected to interior of equipment cabinet, the fresh wind port for introducing exterior air-flow, the internal interface for being connected to air-flow switching channel;Air flow valve changeover module, the air flow valve changeover module are used to control the opening and closing of fresh wind port, internal interface, heat extraction mouth.Make cabinet that outer circulation fresh air refrigerating function not only can be used by the device, but also be able to use interior recycle compressor forced cooling function, simplifies the design of cabinet, reduces the energy consumption and cost of system.

Description

A kind of double cold source cooling connector devices of network cabinet
Technical field
The utility model relates generally to data center's air-conditioning technical field, and the double cold source coolings of specifically a kind of network cabinet connect Mouth device.
Background technique
With the arriving of big data era, various data centers have become the very important economic base of all trades and professions and set It applies, the importance in people's Working Life also increasingly highlights.At the same time, the scale of data center is just sent out towards polarising Exhibition: the scale of large-scale data center is increasing;And the scale of small, miniature data center is then smaller and smaller.In order to meet terminal The environment and instantaneity demand of business, small, miniature data center even have to build under some extreme environment, such as: Some office space etc. in open air, the light current well of floor, the business hall of curbside, office building.Currently, in these application scenarios In, compared with frequently with scheme be configuration sealed dustproof type cabinet system.But since cabinet is closed, when the pressure such as compressor of air conditioner is cold But when system is out of service for some reason, the heat that the equipment that interior of equipment cabinet is powered by UPS generates will be unable to normally be discharged outside cabinet.For Such case, currently employed counte-rplan mainly have: on cabinet add emergency ventilation door, on cabinet install additional cabinet door it is urgent Snap device etc.;But these schemes not only increase the production cost of system, when cabinet external environment temperature is lower, Bu Nengchong Dividing using border temperature cold source is interior of equipment cabinet cooling, leads to the increase that system energy consumption is meaningless, does not meet national energy conservation and emission reduction policy.
Utility model content
For the deficiency for solving current technology, the utility model combination prior art provides a kind of net from practical application The double cold source cooling connector devices of network cabinet, make cabinet that outer circulation fresh air refrigerating function not only can be used, but also can by the device Using interior recycle compressor forced cooling function, simplifies the design of cabinet, reduces the energy consumption and cost of system.
To achieve the above object, the technical solution of the utility model is as follows:
A kind of double cold source cooling connector devices of network cabinet, for collectively constituting one relatively with air conditioner, network cabinet Closed airflow circulating system, including
Return air channel, the return air channel have the return air channel air outlet connecting for the return air inlet for air-conditioner with air conditioner, Return air inlet for being connected to interior of equipment cabinet;
Air-flow switching channel, the air-flow switching channel have the air-flow switching connecting for the air conditioner air outlet with air conditioner Channel air inlet, for by the heat extraction mouth outside air-flow discharge system;
Xingfeng capsule channel, the Xingfeng capsule channel have air outlet for being connected to interior of equipment cabinet, for introducing system Fresh wind port, the internal interface for being connected to air-flow switching channel of system outer gas stream;
Air flow valve changeover module, the air flow valve changeover module are used to control fresh wind port, internal interface, heat extraction mouth and open It closes;When the fresh wind port, heat extraction mouth are closed, when internal interface is opened, air conditioner and cabinet formation inner air circulation system can be made, Freezed by air conditioner and realize cabinet heat extraction, when the fresh wind port, heat extraction mouth opening can make outside cabinet when internal interface is closed Portion's air-flow flows through interior of equipment cabinet and drains into realization cabinet heat extraction outside cabinet again.
The air flow valve changeover module includes Xingfeng capsule valve, air-flow switch valve and valve positioner, by institute The opening and closing that valve positioner control Xingfeng capsule valve event realizes fresh wind port is stated, by valve positioner control air-flow switching Valve event, internal interface is closed while heat extraction mouth can be made to open, and internal interface is opened while heat extraction mouth is closed.
The Xingfeng capsule valve, air-flow switch valve are plank frame, and Xingfeng capsule valve is placed in fresh wind port side, The opening and closing of fresh wind port is realized by its rotary movement, air-flow switch valve is placed between heat extraction mouth and internal interface, to side Heat extraction mouth can be closed when overturning, it can closed interior interface when to another side to overturn.
The valve positioner is a dragger, which connects Xingfeng capsule valve by traction rope and air-flow switches Valve when dragger acts, drives Xingfeng capsule valve and the overturning of air-flow switch valve to beat fresh wind port, heat extraction mouth by traction rope It opens, internal interface closing, when dragger discharges, resets Xingfeng capsule valve and air-flow switch valve by reduction torsion spring, from And close fresh wind port, heat extraction mouth, internal interface is opened.
Fresh air filter screen is equipped on the outside of the fresh wind port.
The return air channel air outlet, air-flow switching channel air inlet are equipped with sealing ring.
The air-flow switching channel, Xingfeng capsule channel low temperature position use physics insulation.
The utility model has the beneficial effects that
1, the utility model forms airflow circulating channel by return air channel, air-flow switching channel, Xingfeng capsule channel, leads to It crosses and cooperates with air flow valve changeover module, airflow circulating channel can be recycled inside and be switched between outer circulation, be by control System detection environment temperature controls airflow circulating channel, when ambient temperature is higher, using when interior circulation, it can be achieved that forcing cold But function, air stream are recycled in internal system, and without filtering, air-flow then cooled down by A/C evaporator, when ambient temperature is lower or Pressure cooling system stops when refrigeration uses outer circulation for some reason, it can be achieved that fresh air refrigerating function, air stream are passed through by exterior It introduces after filter, is discharged again from internal system after interior of equipment cabinet heat absorption;Therefore can be good at solving small micromodule data The problem of center air-conditioner heat dissipation, fresh air heat extraction and emergency heat extraction, it is ensured that interior of equipment cabinet electronic equipment will not be due to temperature be excessively high Damage, and switched by reasonable inner-outer circulation, it can reduce meaningless system energy consumption, accomplish energy-saving and emission-reduction.
2, air flow valve changeover module designed by the utility model, structure is simple, low in cost, and it is stable can The flexibly opening and closing of switching corresponding interface;Guarantee that sundries will not be brought into when introducing external air flow by the filter screen of setting, by setting The sealing ring set can accomplish effective sealing of interface and air conditioner;It can ensure that air-flow switches by the heat insulation layer of setting Channel, Xingfeng capsule channel outside it is unlikely because low temperature moisture condensation after influence use.
Detailed description of the invention
Attached drawing 1 is the utility model principle structural schematic diagram.
Label shown in attached drawing:
1, return air inlet;2, return air channel;3, first interface sealing ring;3-1: second interface sealing ring;4, air conditioner;4-1, Return air inlet for air-conditioner;4-2, air conditioner air outlet;5, air-flow switching channel;5-1, air-flow switching channel air inlet;6, internal interface;7, Xingfeng capsule channel;8, air outlet;9, heat extraction mouth;10, fresh wind port;11, fresh air filter screen;12, air-flow switch valve;12-1, First valve hinges;12-2, the first reduction torsion spring;13, Xingfeng capsule valve;13-1, the second valve hinges;13-2, second are answered Position torsional spring;14, valve positioner;14-1, traction rope;14-2, first pulley;14-3, second pulley;14-4, traction rope endpoint And relaxation adjuster;15, shell;16, first thermal insulation layer;16-1, second thermal insulation layer;16-2, third thermal insulation layer.
Specific embodiment
With reference to the drawings and specific embodiments, the utility model is described in further detail.It should be understood that these embodiments are only used for Illustrate the utility model rather than limitation the scope of the utility model.In addition, it should also be understood that, having read the utility model instruction Content after, those skilled in the art can make various changes or modifications the utility model, and such equivalent forms are equally fallen In range defined herein.
The airflow circulating system of a relative closure is collectively constituted with air-conditioning, network cabinet when the utility model is used, it is empty Adjust inner blower, control system and the fraction channel of device compulsory circulative cooling and new air cooling Personalized air conditioning.It is new in order to realize Air cooling function, air stream are introduced after filtering by exterior, are discharged again from internal system after interior of equipment cabinet heat absorption;And In order to realize that forced cooling function, air stream are recycled in internal system, without filtering, air-flow is then cooled down by A/C evaporator.
In the specific implementation, the utility model can be placed in the top, lower part or surrounding of network cabinet, by the sky of air conditioner 4 Recall to air port 4-1 and air conditioner air outlet 4-2 and turn to interior of equipment cabinet, heat extraction mouth 9, fresh wind port 10 towards cabinet outside, with cabinet sky Between collectively form inner air circulation and air-flow external circulating system.
As shown in Figure 1, the interface arrangement of the utility model includes that return air channel 2, air-flow switching channel 5, Xingfeng capsule are logical Road 7 and air-flow valve transfer component, wherein
Return air channel 2 have return air channel air outlet 2-1 connect for the return air inlet for air-conditioner 4-1 with air conditioner 4, this Return air channel air outlet 2-1 and return air inlet for air-conditioner 4-1 can closely be connected by first interface sealing ring 3, which also has There is the return air inlet 1 for being connected to network cabinet inside,
Air-flow switching channel 5 has the air-flow switching channel air inlet connecting for the air conditioner air outlet 4-2 with air conditioner 4 5-1, air-flow switching channel air inlet 5-1 and air conditioner air outlet 4-2 can closely be connected by second interface sealing ring 3-2, should Air-flow switching channel 5 also has for by the heat extraction mouth 9 outside air-flow discharge system;
Xingfeng capsule channel 7 has air outlet 8 for being connected to interior of equipment cabinet, for introducing the new of exterior air-flow Air port 10, the internal interface 6 for being connected to air-flow switching channel 5;Fresh wind port 10 be located at 7 side of Xingfeng capsule channel for External world's connection, internal interface 6 can be connected to Xingfeng capsule channel 7 and air-flow switching channel 5 when opening;
Air flow valve changeover module is used to control the opening and closing of fresh wind port 10, internal interface 6 and heat extraction mouth 9;And then it is formed Inner air circulation or air-flow outer circulation.By the control of air flow valve changeover module, when the fresh wind port 10, heat extraction mouth 9 are closed, When internal interface 6 is opened, system is isolated from the outside, and internal interface 6 penetrates through Xingfeng capsule channel 7 and air-flow switching channel 5, from And air conditioner 4 and cabinet can be made to form inner air circulation system, at this point, realizing cabinet heat extraction by the refrigeration of air conditioner 4;When described Fresh wind port 10, heat extraction mouth 9 are opened, and when internal interface 6 is closed, system is connected to external at this time, and internal interface 6 is by new air control Channel 7 processed and air-flow switching channel 5 disconnect, and cabinet outer gas stream can be made to flow through interior of equipment cabinet at this time and drain into realization outside cabinet again Cabinet heat extraction.
As shown in the picture, in the present invention, air flow valve changeover module includes Xingfeng capsule valve 13, air-flow switching Valve 12 and valve positioner 14, wherein air-flow switch valve 12 and Xingfeng capsule valve 13 pass through valve positioner 14 Control, fresh air valve 13 are a plate formula structure, for controlling the opening and closing of fresh wind port 10, air-flow switching on the inside of fresh wind port 10 Valve 12 is similarly a plate formula structure, and air-flow switch valve 12 controls heat extraction mouth 9 and internal interface 6 simultaneously, as shown in the figure, In order to facilitate the control of internal interface 6, incline structure is set by internal interface 6, and air-flow switch valve 12 is placed in inside and connects Between mouth 6 and heat extraction mouth 9, then heat extraction mouth 9 is closed when air-flow switch valve 12 flips to one side and fits to heat extraction mouth 9 And internal interface 6 is opened, when air-flow switch valve 12 fits to internal interface 6 to another side to overturn, heat extraction mouth 9 is beaten It opens and 6 times of internal interface closings.
For the ease of being controlled by valve positioner 14 air-flow switch valve 12 and Xingfeng capsule valve 13, valve Controller 14 uses a dragger, is connected to air-flow switch valve 12 and Xingfeng capsule valve 13 simultaneously by traction rope 14-1, By corresponding first pulley 14-2 and second pulley 14-3 transition when connection, pass through traction rope endpoint and relaxation adjuster 14-4 Adjust traction rope 14-1 elasticity.Second reduction torsion spring is installed at the second valve hinges 13-1 of Xingfeng capsule valve 13 13-2 is equipped with the first reduction torsion spring 12-2 at the first valve hinges 12-1 of air-flow switch valve 12.With this configuration, when When dragger acts, traction rope 14-1 is wound, then traction rope 14-1 drives air-flow switch valve 12 internally to overturn at interface 6 Fitting closes internal interface 6, the opening of heat extraction mouth 9, while traction rope 14-1 drives the inside overturning of Xingfeng capsule valve 13 to make newly It opens in air port 10.When dragger discharges, traction rope 14-1 is relaxed, and at this time under the first reduction torsion spring 12-2 effect, air-flow is cut Change 12 automatic turning of valve conform at heat extraction mouth 9 by heat extraction mouth 9 closing, internal interface 6 open, similarly, the second reduction torsion spring 13-2 closes fresh wind port 10.
The air-flow entered when in order to guarantee outer circulation is clean gas, and the utility model is equipped with fresh air on the outside of fresh wind port 10 Filter screen 11, for the impurity in filtered airflow.Meanwhile in order to avoid low temperature dew condensation phenomenon, the utility model switches in air-flow Channel 5, the low temperature position in Xingfeng capsule channel 7 use physics insulation at component, first thermal insulation layer 16 as shown in the figure, Second thermal insulation layer 16-1, third thermal insulation layer 16-2.
Specific works original is explained respectively with inside and outside two kinds of circulating working modes of the utility model and workflow below Reason:
When control system detects that external temperature is higher according to temperature signal, control respective valves, air conditioner 4 etc. are moved To make, system is made to carry out interior circulation pattern, the working condition of interior each component of circulation pattern: " air conditioner 4 " operates in refrigeration mode, " valve positioner 14 " release, " air-flow switch valve 12 " resets under " the first reduction torsion spring 12-2 " twisting force blocks " row Hot mouth 9 ", " internal interface 6 " is unimpeded, and " Xingfeng capsule valve 13 " resets under " the second reduction torsion spring 13-2 " twisting force to be blocked " fresh wind port 10 ".
Workflow when interior circulation pattern: " return air inlet for air-conditioner 4-1 " generate negative pressure by the hot-air of interior of equipment cabinet from " return air inlet 1 ", " return air channel 2 " sucking are sent by " air conditioner air outlet 4-2 " to " air-flow switching channel after " air conditioner 4 " is cooling 5 ", cold airflow passes through " internal interface 6 " entrance " Xingfeng capsule channel 7 ", is sent into inside network cabinet through " air outlet 8 ", thus Achieve the purpose that equipment cooling in cabinet;" thermal insulation layer 16,16-1,16-2 " ensures that " air-flow switching channel 5 ", " Xingfeng capsule is logical Reason low temperature does not condense in the outside in road 7 ".
When control system detects that external temperature is lower or air conditioner 4 breaks down according to temperature signal, respective valve is controlled The movement of door, air conditioner 4 etc. makes system carry out outer circulation mode, the working condition of each component of outer circulation mode: " air conditioner 4 " Ventilation mode is operated in, " valve positioner 14 " movement, " traction rope 14-1 " is partially involved in " valve positioner 14 " and contracted Short, " air-flow switch valve 12 " is blocked " internal interface 6 " by drawing-in motion, and " heat extraction mouth 9 " is unimpeded, " Xingfeng capsule valve 13 " It is opened by drawing-in motion, " fresh wind port 10 " is unimpeded.
The workflow of outer circulation mode: " return air inlet for air-conditioner 4-1 " generate negative pressure by the hot-air of interior of equipment cabinet from " return Air port 1 ", " return air channel 2 " sucking, " air conditioner 4 " operates in ventilation mode at this time, and thermal current is after " air conditioner 4 " pressurization It is sent by " air conditioner air outlet 4-2 " to " air-flow switching channel 5 ";And " internal interface 6 " has been blocked by " air-flow switch valve 12 ", pressure The higher thermal current of power is outside " heat extraction mouth 9 " discharge system;And on the other hand, cabinet is a relative closure when working normally Space, the negative pressure that " return air inlet for air-conditioner 4-1 " is generated makes interior of equipment cabinet air pressure reduction by " return air channel 2 ", " return air inlet 1 ", To make " air outlet 8 " that connects with cabinet, " Xingfeng capsule channel 7 " air pressure reduce, the Cryogenic air of exterior is caused to pass through By " fresh air filter screen 11 ", " fresh wind port 10 ", into " Xingfeng capsule channel 7 ", interior of equipment cabinet is entered by " air outlet 8 ", thus Achieve the purpose that equipment cooling in cabinet.

Claims (7)

1. the double cold source cooling connector devices of a kind of network cabinet, for collectively constituting an opposite envelope with air conditioner, network cabinet The airflow circulating system closed, it is characterised in that: including
Return air channel, the return air channel have the return air channel air outlet connecting for the return air inlet for air-conditioner with air conditioner, are used for The return air inlet being connected to interior of equipment cabinet;
Air-flow switching channel, the air-flow switching channel have the air-flow switching channel connecting for the air conditioner air outlet with air conditioner Air inlet, for by the heat extraction mouth outside air-flow discharge system;
Xingfeng capsule channel, the Xingfeng capsule channel have air outlet for being connected to interior of equipment cabinet, for introducing outside system The fresh wind port of portion's air-flow, the internal interface for being connected to air-flow switching channel;
Air flow valve changeover module, the air flow valve changeover module are used to control the opening and closing of fresh wind port, internal interface, heat extraction mouth; When the fresh wind port, heat extraction mouth are closed, when internal interface is opened, air conditioner and cabinet formation inner air circulation system can be made, led to It crosses air conditioner refrigeration and realizes cabinet heat extraction, when the fresh wind port, heat extraction mouth opening can make outside cabinet when internal interface is closed Air-flow flows through interior of equipment cabinet and drains into realization cabinet heat extraction outside cabinet again.
2. the double cold source cooling connector devices of a kind of network cabinet as described in claim 1, it is characterised in that: the air flow valve Changeover module includes Xingfeng capsule valve, air-flow switch valve and valve positioner, controls fresh air by the valve positioner The opening and closing of fresh wind port is realized in control valve movement, by valve positioner control air-flow switch valve movement, can make heat extraction mouth Internal interface is closed while opening, and internal interface is opened while heat extraction mouth is closed.
3. the double cold source cooling connector devices of a kind of network cabinet as claimed in claim 2, it is characterised in that: the Xingfeng capsule Valve, air-flow switch valve are plank frame, and Xingfeng capsule valve is placed in fresh wind port side, are realized by its rotary movement new The opening and closing in air port, air-flow switch valve are placed between heat extraction mouth and internal interface, and heat extraction mouth can be closed when flipping to one side, to It can closed interior interface when another side to overturn.
4. the double cold source cooling connector devices of a kind of network cabinet as claimed in claim 3, it is characterised in that: the valve control Device is a dragger, which connects Xingfeng capsule valve and air-flow switch valve by traction rope, when dragger acts, by Traction rope drives Xingfeng capsule valve and the overturning of air-flow switch valve to open fresh wind port, heat extraction mouth, internal interface closing, traction When machine discharges, reset Xingfeng capsule valve and air-flow switch valve by reduction torsion spring, so that fresh wind port, heat extraction mouth be sealed It closes, internal interface is opened.
5. the double cold source cooling connector devices of a kind of network cabinet as described in claim 1, it is characterised in that: outside the fresh wind port Side is equipped with fresh air filter screen.
6. the double cold source cooling connector devices of a kind of network cabinet as described in claim 1, it is characterised in that: the return air channel Air outlet, air-flow switching channel air inlet are equipped with sealing ring.
7. the double cold source cooling connector devices of a kind of network cabinet as described in claim 1, it is characterised in that: the air-flow switching Channel, Xingfeng capsule channel low temperature position use physics insulation.
CN201821480439.9U 2018-09-10 2018-09-10 A kind of double cold source cooling connector devices of network cabinet Active CN209201441U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201821480439.9U CN209201441U (en) 2018-09-10 2018-09-10 A kind of double cold source cooling connector devices of network cabinet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201821480439.9U CN209201441U (en) 2018-09-10 2018-09-10 A kind of double cold source cooling connector devices of network cabinet

Publications (1)

Publication Number Publication Date
CN209201441U true CN209201441U (en) 2019-08-02

Family

ID=67405854

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201821480439.9U Active CN209201441U (en) 2018-09-10 2018-09-10 A kind of double cold source cooling connector devices of network cabinet

Country Status (1)

Country Link
CN (1) CN209201441U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109041547A (en) * 2018-09-10 2018-12-18 南京吉左网络科技股份有限公司 A kind of double cold source cooling connector devices of network cabinet
CN112888247A (en) * 2021-01-11 2021-06-01 曼祥(福建)科技发展有限公司 A supplementary heat extraction device of switch for information engineering

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109041547A (en) * 2018-09-10 2018-12-18 南京吉左网络科技股份有限公司 A kind of double cold source cooling connector devices of network cabinet
CN112888247A (en) * 2021-01-11 2021-06-01 曼祥(福建)科技发展有限公司 A supplementary heat extraction device of switch for information engineering
CN112888247B (en) * 2021-01-11 2022-06-07 江苏美嘉智能电气有限公司 A supplementary heat extraction device of switch for information engineering

Similar Documents

Publication Publication Date Title
CN103904568B (en) A kind of convergence control cabinet ventilation drying system and method
CN107172861B (en) A kind of data center machine room energy-saving cooling system and its control method that airflow circulating is variable
CN111306646B (en) Control method of fresh air conditioner
CN101021345A (en) One-piece air conditioner device and its controlling method
CN102306044A (en) Automatic control refrigeration system for high-density computer room and method thereof
CN209201441U (en) A kind of double cold source cooling connector devices of network cabinet
CN106196398A (en) A kind of emergency ventilation rack for modular data center
CN205351897U (en) Can make up refrigerator that uses with insulation can
CN202328607U (en) Intelligent broad-coverage high-efficient dustproof fresh air system
CN101021351A (en) Blast pipe type air conditioner device capable of two-directional exchanging air
CN103673244A (en) Multifunctional heat pump type air conditioner with variable air door
CN204880424U (en) Cryogenic roof formula air conditioning unit of intelligence
CN105299814B (en) The self adaptive heat balance system in machine station and method
CN108901189A (en) A kind of cooling equipment of double cold sources of network cabinet
CN203489400U (en) Evaporative air conditioner with dedusting and primary air return functions
CN209527028U (en) A kind of cooling equipment of double cold sources of network cabinet
CN109041547A (en) A kind of double cold source cooling connector devices of network cabinet
CN104290565A (en) Back-mounted electric bus air conditioner
CN203747269U (en) Ventilating and dehumidifying system for control cabinet
CN211240602U (en) Double-cold-source network cabinet heat dissipation equipment without overflow of condensed water
CN115899848B (en) Air conditioner, prefabricated cabin and control method
CN207889713U (en) A kind of fresh air system of railway vehicle air conditioner
CN114508811B (en) Fresh air environmental control integrated machine for passive building and control system and method
CN111076330A (en) Transitional season air supply system based on air handling unit and control method thereof
CN106225180B (en) Full fresh air wall-mounted jet air conditioning unit and control method thereof

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant