CN107514845A

CN107514845A - A kind of air-conditioning system

Info

Publication number: CN107514845A
Application number: CN201710924894.7A
Authority: CN
Inventors: 杨静; 邓鹏�
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-10-02
Filing date: 2017-10-02
Publication date: 2017-12-26

Abstract

The invention discloses a kind of air-conditioning system, including compressor, heat exchanger, connecting pipe, first filter, the second filter, detection pipe, the signal that controller detects according to detection pipe controls the circulation branch road of refrigerant, refrigerant is carried out different degrees of filtering according to different degradations.Simultaneously and dynamically it can suppress or slow down the deterioration process of refrigerant by the present invention, reduce the frequency for changing refrigerant, and reduce circulating resistance when filtering refrigerant, reduce the load of compressor and the energy consumption of air-conditioning system.

Description

A kind of air-conditioning system

Technical field

The invention belongs to electric automobile field, more particularly to a kind of air-conditioning system.

Background technology

In use for some time, the pollutant such as impurity, vapor can be mixed into air conditioner refrigerating to the air-conditioning system of electric automobile In agent, the deterioration of refrigerant is caused, and then causes the decline of vehicle refrigerating efficiency and the raising of energy consumption.Tackle the usual of the problem Way, first, the refrigerant in special refrigerant charging machine replacing air-conditioning system is used, and conventional plunger pump type or compression The filling precision of machine formula charging machine is low, is difficult to control, and equipment cost is higher, and filling process is complicated, it is often more important that, it is this more Changing the method for refrigerant can only wait until that refrigerant can just be implemented after deteriorating to a certain extent, can not suppress in real time before this Or slow down the process of refrigerant deterioration, therefore the performance degradation of interior air-conditioning system can not despise in the meantime；Second, in sky The liquid trap of filter screen or filter core is provided with adjusting system, this mode can greatly increase resistance during refrigerant circulation, increase The load of compressor and the energy consumption of air-conditioning system are added, and filter effect is unsatisfactory.

The content of the invention

In order to be reduced as far as changing the frequency of refrigerant, and it in real time, dynamically can suppress or slow down refrigeration The deterioration process of agent, the invention provides a kind of air-conditioning system, technical scheme is as follows, including：

Compressor and heat exchanger, and for forming the connecting pipe of refrigerant flow cycle；

The heat exchanger is made up of the more horizontal tubes to extend parallel to each other and the left and right header being vertically arranged, water The both ends of flat pipe are respectively accommodated in left header, in right header, and horizontal tube and left and right header hermetically connect, header Inside be provided with multiple cut-offs, the space in header is divided into multiple sections being isolated from each other so that refrigerant is with multiple The mode of steering circulates in header and horizontal tube；The top of left header is provided with first entrance, and the bottom of right header is set There is first outlet；

The first filter of left header side is arranged on, the second filter set close to the first filter, its Being formed by cylinder, upper and lower side closing pipe, the inwall of first filter has the tapetum for adsorbing contaminant, and The inside of first filter have it is multiple staggeredly, the filter made of zeolite of oblique arrangement；The inside of second filter Top and bottom have the micropore filtering film being supported on support, are filled between two micropore filtering films and are made up of zeolite granular Filter material；

The detection pipe of filter side is arranged on, it is used for the degradation for differentiating refrigerant in real time, the inside of detection pipe Top has ultrasonic transmitter-receiver, and bottom is ultrasonic reflections face, due to pure gaseous refrigerant and is mixed with impurity, vapor Gaseous refrigerant, spread speed of the ultrasonic wave in both different propagation mediums is different, and detection pipe is based on this Principle, the degradation of refrigerant is detected in real time.

The port of export of the detection pipe by a four way solenoid valve respectively with left header, first filter, the second mistake The arrival end of filter is connected；

Controller, it is connected with ultrasonic transmitter-receiver, four way solenoid valve, signal compressor, and is received according to from ultrasonic wave Send out the opening and closing of ultrasonic signal control four way solenoid valve and the running speed of compressor that device perceives；

When air-conditioning system is run, flowed into and be full of through connecting pipe by the gaseous refrigerant of the HTHP of compressor compresses The detection pipe, the ultrasonic transmitter-receiver are sent ultrasonic wave and received and reflected with predetermined frequency to ultrasonic reflections face Ultrasonic wave, record the actual duration received used in the ultrasonic signal of reflection, controller is by the actual duration and mark The standard duration used in the ultrasonic signal of reflection is received under quasi- state to be compared, and calculates the difference of the two, when described When difference is less than first threshold, controller controls the four way solenoid valve to form the first circulation branch road, makes refrigerant by detection pipe The port of export flow directly into the arrival end of left header；When the difference is more than first threshold and is less than Second Threshold, control Device controls the four way solenoid valve to form the second circulation branch road, refrigerant is flowed into first filter by the port of export of detection pipe Arrival end, after first filter filters, the arrival end of left header is flowed into by the port of export of first filter；When the difference During more than Second Threshold, controller controls the four way solenoid valve to form the 3rd circulation branch road, makes refrigerant going out by detection pipe Mouth end flows into the arrival end of the second filter, and after the filtering of the second filter, left afflux is flowed into by the port of export of the second filter The arrival end of pipe；When the difference is more than three threshold values, controller is except controlling the four way solenoid valve to form the 3rd circulation Outside branch road, the running speed of compressor is also further reduced, makes the flow velocity of refrigerant reduce, to increase refrigerant and filter Time of contact.

The first threshold<Second Threshold<3rd threshold value.

The standard state refers to：Working condition when being used for the first time after air-conditioning system has changed refrigerant.

Simultaneously and dynamically it can suppress or slow down the deterioration process of refrigerant by the present invention, reduce and change refrigerant Frequency, and circulating resistance when filtering refrigerant is reduced, reduce the load of compressor and the energy consumption of air-conditioning system.

Brief description of the drawings

Fig. 1 shows the structure of the heat exchanger of the present invention；

Fig. 2 shows the refrigerant filtering stream schematic diagram of the present invention.

Embodiment

Below in conjunction with specific embodiment, air-conditioning system of the invention is described in detail.

As shown in Figure 1, 2, heat exchanger by the more horizontal tubes to extend parallel to each other 1 and be vertically arranged left header 2, Right header 3 is formed, and the both ends of horizontal tube 1 are respectively accommodated in left header 2, in right header 3, horizontal tube 1 and left and right afflux Connect, the inside of header is provided with multiple cut-offs 4, and the space in header is divided into multiple areas being isolated from each other the seal of tube Section so that refrigerant is circulated in a manner of repeatedly turning in header 2,3 and horizontal tube 1；The top of left header 2 is provided with the One entrance 2.1, the bottom of right header 3 are provided with first outlet 3.1；

The first filter 5 of the left side of header 2 is arranged on, the second filter set close to the first filter 5 6, it is formed by cylinder, upper and lower side closing pipe, is arranged on the detection pipe 7 of filter side, it is used to reflect in real time The degradation of other refrigerant, the inner bottom of detection pipe 7 have ultrasonic transmitter-receiver 7.1, and top is ultrasonic reflections face 7.2, the port of export of the detection pipe 7 by a four way solenoid valve 8 respectively with left header 2, first filter 5, the second mistake The arrival end of filter 6 is connected；

When air-conditioning system is run, flowed into and be full of through connecting pipe by the gaseous refrigerant of the HTHP of compressor compresses The detection pipe 7, the ultrasonic transmitter-receiver 7.2 to ultrasonic reflections face 7.1 send ultrasonic wave and receiving reflect it is super Sound wave, ultrasonic signal being recorded from being issued to and receives actual duration used, controller is by the actual duration and standard shape Ultrasonic signal is compared from reception standard duration used is issued under state, and calculates the difference of the two, when the difference During less than first threshold, controller controls the four way solenoid valve 8 to form the first circulation branch road, makes refrigerant by detection pipe 7 The port of export flows directly into the arrival end of left header 2；When the difference is more than first threshold and is less than Second Threshold, controller Control the four way solenoid valve 8 to form the second circulation branch road, refrigerant is flowed into first filter 5 by the port of export of detection pipe 7 Arrival end, after the filtering of first filter 5, the arrival end of left header 2 is flowed into by the port of export of first filter 5；Work as institute When stating difference and being more than Second Threshold, controller controls the four way solenoid valve 8 to form the 3rd circulation branch road, makes refrigerant by detecting The port of export of pipe 7 flows into the arrival end of the second filter 6, after the filtering of the second filter 6, by the port of export of the second filter 6 Flow into the arrival end of left header 2；When the difference is more than three threshold values, controller is except controlling the four way solenoid valve 8 Formed outside the 3rd circulation branch road, also control reduces the running speed of compressor, makes the flow velocity of refrigerant reduce, to increase refrigerant With the time of contact of filter.

One skilled in the art would recognize that without departing substantially from as the spirit and scope of the invention described in general manner, Various changes and/or modification can be carried out to the invention shown in each specific embodiment.Therefore, in terms of all For, embodiment here is considered as illustrative and and non-limiting.Equally, the present invention includes any feature Combination, the combination of any feature especially in Patent right requirement, even if the combination of this feature or feature is not in patent It is explicitely stated in claim or each embodiment here.

Claims

1. a kind of air-conditioning system, including：Compressor and heat exchanger, and for forming the connecting tube of refrigerant flow cycle Road, it is characterised in that

First filter, it is made up of cylinder, upper and lower side closing pipe, and the inwall of first filter, which has, to be used to adsorb The tapetum of impurity, inside have it is multiple staggeredly, the filter made of zeolite of oblique arrangement；

Second filter, it is arranged close to first filter, and the top and bottom of the inside of the second filter, which have, to be supported on Micropore filtering film on frame, filled with the filter material being made up of zeolite granular between two micropore filtering films；

Detection pipe, first filter side is arranged in, its time consumed back and forth in detection pipe by ultrasonic wave is freezed The real-time detection of agent degradation.