CN202264784U - Novel high-speed train air-conditioning system with frequency-variable fans - Google Patents
Novel high-speed train air-conditioning system with frequency-variable fans Download PDFInfo
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- CN202264784U CN202264784U CN2011203077543U CN201120307754U CN202264784U CN 202264784 U CN202264784 U CN 202264784U CN 2011203077543 U CN2011203077543 U CN 2011203077543U CN 201120307754 U CN201120307754 U CN 201120307754U CN 202264784 U CN202264784 U CN 202264784U
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T30/00—Transportation of goods or passengers via railways, e.g. energy recovery or reducing air resistance
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Abstract
The utility model relates to a novel high-speed train air-conditioning system with frequency-variable fans. The system comprises a compressor, a condenser, a throttle valve and an evaporator, wherein the compressor is connected with the condenser, the throttle valve and the evaporator in turn to form a circuit; and a pressure sensor is connected between the condenser and the throttle valve and is respectively connected with a frequency-variable condensation fan and a frequency-variable evaporation fan through a controller. The common condensation fan and the common evaporation fan are changed into the frequency-variable condensation fan and the frequency-variable evaporation fan under the conditions of the working condition, working space and system operation of the conventional equipment, so that air quantity required by radiating the condenser and fresh air quantity required in a carriage are changed when condensation pressure is changed due to the change of the operation speed of a train, the requirement of a high-speed train air conditioner during actual operation is met, and the high-speed train air-conditioning system works in a safe, reliable, energy-saving and high-efficiency mode in the train operation process.
Description
Technical field
The utility model relates to a kind of high speed train a/c system, especially a kind of high speed train a/c system that adopts frequency conversion fan.
Background technology
In the cooling power of high speed train a/c system condenser and the compartment normal, the safety of required resh air requirement and train air-conditioning system and effectively operation have directly and get in touch.When train air-conditioning system condensing device cooling power and evaporation fan pressure head are not enough; Especially under the situation of variable parameter operation, when for example train running speed improved, train surface negative pressure increased; The air quantity that condensation fan and evaporation fan suck will reduce; Cause resh air requirement deficiency in condenser pressure rising, the compartment, the a/c system refrigerating capacity descends, the high normal operation that influences train again of power consumption.Train air-conditioning system condensing device cooling power and resh air requirement deficiency can cause the train air-conditioning system failure, cause the air conditioner system in totally-enclosed compartment malfunctioning, and air in a car compartment worsens, thereby, need in time address this problem.
Summary of the invention
The utility model is to solve required resh air requirement deficiency and the too high technical matters of blower fan power consumption in high speed train a/c system condenser cooling power deficiency, the compartment, and a kind of novel high speed train air-conditioning system that adopts frequency conversion fan is provided.
For realizing above-mentioned purpose, the technical scheme of the utility model is: a kind of novel high speed train air-conditioning system that adopts frequency conversion fan comprises compressor; Condenser, flow regulating valve, evaporator; Compressor connects condenser, flow regulating valve, evaporator successively; And the formation loop, be characterized in: be connected with pressure sensor between condenser and the flow regulating valve, and pressure sensor is connected with the frequency-variable evaporation blower fan with the frequency conversion condensation fan respectively through controller.
When the condensator outlet pressure ratio of pressure signal that pressure sensor records and setting after; The gained signal is passed to the frequency converter of frequency conversion condensation fan and frequency-variable evaporation blower fan through controller, be used for the rotating speed of regulating control frequency conversion condensation fan and frequency-variable evaporation blower fan.
The beneficial effect of the utility model is: the utility model utilizes frequency conversion fan to improve the refrigeration performance of high speed train a/c system; Working condition, working space, running situation according to existing installation; Change common condensation fan and evaporation fan into frequency conversion condensation fan and frequency-variable evaporation blower fan; Make the required resh air requirement of required air quantity of condenser heat radiation and air in a car compartment renewal along with the change because of the condensing pressure that variation causes of train speed changes; Satisfy the needs of real-world operation, reach required requirement, thereby guarantee that the high speed train a/c system is safe and reliable in train travelling process, the work of efficient energy-saving.
Description of drawings
Fig. 1 is the structural representation of the utility model.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is done further explanation.
As shown in Figure 1, the utility model is a kind of high speed train a/c system that adopts frequency conversion fan, comprises compressor 1, condenser 2, flow regulating valve 3, evaporator 4, frequency conversion condensation fan 5, pressure sensor 6, frequency-variable evaporation blower fan 7 and controller 8.
The utility model is on original control system basis; Behind condenser 2, set up pressure sensor 6; The pressure signal that records is compared with the condensator outlet pressure of setting; The gained signal passes to the frequency converter of frequency conversion condensation fan 5 and frequency-variable evaporation blower fan 7 through controller 8, is used for the rotating speed of regulating control frequency conversion condensation fan 5 and frequency-variable evaporation blower fan 7.
The circulating path of the high speed train a/c system working process of the utility model employing frequency conversion fan is following: the high-temperature high-pressure refrigerant that from compressor 1, comes out gets into condenser 2; Refrigerant temperature is higher than ambient temperature, and heat constantly passes to environment, and the transmission of heat mainly is to cause through the forced convection that frequency conversion condensation fan 5 produces; Because the air quantity of frequency conversion condensation fan 5 receives the influence of suction pressure; Along with the raising of high speed train speed, train surface negative pressure increases, and frequency conversion condensation fan 5 air quantity reduce; Condensing temperature raises, and condensing pressure increases.Pressure sensor 6 records the variable signal of the condensing pressure that variation causes of train speed; Pass to the rotating speed of frequency conversion condensation fan 5 through controller 8; Make it adapt to the required air quantity of condenser heat radiation under the different operating modes, reach requirement, then flow through flow regulating valve 3 with the pressure that guarantees condenser 2 exit refrigerants; Make the refrigerant evaporator 4 of further flowing through after the cooling, the heat exchange through frequency-variable evaporation blower fan 7 enhanced water evaporation devices 4 and air in a car compartment and enough resh air requirements are provided.Along with the raising of train speed, train surface negative pressure increases, and the pressure head of evaporation fan is not enough, causes that the resh air requirement that gets into the compartment reduces, and causes ecological deterioration in the compartment.Therefore; The variable signal that utilizes pressure sensor 6 to record the condensing pressure that variation causes of train speed is equally controlled the rotating speed of frequency-variable evaporation blower fan 7; Make it adapt under the different operating modes resh air requirement required in the compartment, ensure the normal renewal of air in a car compartment, reach the requirement of train air quality.Refrigerant flows out evaporator 4 after the heat exchange in the compartment, flow into compressor 1 subsequently, accomplishes a refrigerating cycle to this.
Claims (2)
1. a novel high speed train air-conditioning system that adopts frequency conversion fan comprises compressor (1), condenser (2); Flow regulating valve (3), evaporator (4), compressor (1) connects condenser (2) successively; Flow regulating valve (3), evaporator (4), and form the loop; It is characterized in that: be connected with pressure sensor (6) between said condenser (2) and the flow regulating valve (3), and pressure sensor (6) is connected with frequency-variable evaporation blower fan (7) with frequency conversion condensation fan (5) respectively through controller (8).
2. the novel high speed train air-conditioning system of employing frequency conversion fan according to claim 1; It is characterized in that: when condenser (2) delivery pressure of pressure signal that said pressure sensor (6) records and setting relatively after; The gained signal is passed to the frequency converter of frequency conversion condensation fan (5) and frequency-variable evaporation blower fan (7) through controller (8), be used for the rotating speed of regulating control frequency conversion condensation fan (5) and frequency-variable evaporation blower fan (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203077543U CN202264784U (en) | 2011-08-23 | 2011-08-23 | Novel high-speed train air-conditioning system with frequency-variable fans |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203077543U CN202264784U (en) | 2011-08-23 | 2011-08-23 | Novel high-speed train air-conditioning system with frequency-variable fans |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202264784U true CN202264784U (en) | 2012-06-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203077543U Expired - Fee Related CN202264784U (en) | 2011-08-23 | 2011-08-23 | Novel high-speed train air-conditioning system with frequency-variable fans |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202264784U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103112460A (en) * | 2013-03-19 | 2013-05-22 | 上海理工大学 | Vehicle water heating energy-saving device capable of utilizing waste heat of air conditioner in train |
| CN103727625A (en) * | 2012-10-10 | 2014-04-16 | 珠海格力电器股份有限公司 | Method and device for controlling starting of variable-frequency fan of condensing unit |
| CN105083312A (en) * | 2015-07-02 | 2015-11-25 | 石家庄国祥运输设备有限公司 | Method for preventing low-voltage faults of compressor of air-conditioning system of rail vehicle |
| CN105605747A (en) * | 2016-03-10 | 2016-05-25 | 青岛大学 | Automatic control device of cooling air quantity of outdoor condenser |
| CN106949581A (en) * | 2017-02-28 | 2017-07-14 | 深圳市艾特网能技术有限公司 | Frequency-conversion air-conditioning system and its control method |
-
2011
- 2011-08-23 CN CN2011203077543U patent/CN202264784U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103727625A (en) * | 2012-10-10 | 2014-04-16 | 珠海格力电器股份有限公司 | Method and device for controlling starting of variable-frequency fan of condensing unit |
| CN103112460A (en) * | 2013-03-19 | 2013-05-22 | 上海理工大学 | Vehicle water heating energy-saving device capable of utilizing waste heat of air conditioner in train |
| CN105083312A (en) * | 2015-07-02 | 2015-11-25 | 石家庄国祥运输设备有限公司 | Method for preventing low-voltage faults of compressor of air-conditioning system of rail vehicle |
| CN105605747A (en) * | 2016-03-10 | 2016-05-25 | 青岛大学 | Automatic control device of cooling air quantity of outdoor condenser |
| CN106949581A (en) * | 2017-02-28 | 2017-07-14 | 深圳市艾特网能技术有限公司 | Frequency-conversion air-conditioning system and its control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120606 Termination date: 20180823 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |