CN2775570Y

CN2775570Y - Air conditioner refrigeration heat force expansion tube

Info

Publication number: CN2775570Y
Application number: CNU2005200399287U
Authority: CN
Inventors: 吴俊云
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-03-03
Filing date: 2005-03-03
Publication date: 2006-04-26
Anticipated expiration: 2015-03-03

Abstract

The utility model relates to a refrigeration heat force expansion pipe of an air conditioner. The utility model has one proposal that a one-way structure comprises a valve body and a fixing block, wherein the fixing block is fixed on the inner wall of a pipe, and a shaft center penetrates through a capillary channel; the valve body is positioned on one end of the fixing block. The utility model has the other proposal that a two-way structure comprises motion blocks, fixing blocks and valve bodies; a shaft center penetrates through a small hole, both end faces are respectively provided with the motion blocks with convex conical surfaces are positioned between the two fixing blocks, and the motion blocks can freely slide; the shaft center is the proper separated distance of the two fixing blocks of the capillary channel, and the two fixing blocks are fixed on the inner wall of the pipe; the opposite end faces of the fixing blocks are provided with concave conical surfaces which coincide with the motion blocks; a plurality of penetrating small holes are arranged on the concave conical surfaces; the two valve bodies are respectively positioned on the external sides of the two fixing blocks; each of the valve bodies is a telescopic body which is composed of a valve seat, a cone valve and a connecting spring, wherein the valve seat is fixed at the center of the pipe; the cone valve is over against the capillary channel of the fixing blocks; the channel can be clogged or opened under pressure. The utility model has the advantages that the valve opening can adapt the change of refrigeration condition, the two-way structure can also meet the performance matching requirement of a throttle channel at the time of refrigeration and heat production, the economy of the refrigeration system of the air conditioner is improved.

Description

A kind of air conditioner refrigerating thermal expansion pipe

One, affiliated technical field

The utility model relates to a kind of refrigeration part, refers in particular to a kind of throttle mechanism of refrigeration system.

Two, background technology

The throttle mechanism of small refrigeration systems such as domestic air conditioning and small commercial air-conditioning generally all adopts capillary at present, capillary-compensated have low price, simple in structure, can two-way flow etc. advantage, but it can not regulate refrigerant flow in the refrigeration system with the variation of cooling condition, and refrigerating efficiency reduces along with the variation of cooling condition.And small refrigeration systems such as general domestic air conditioning are used same capillary when freezing and heating, its length is immutable, summer, refrigeration differed greatly with winter heating's condition, length requirement to throttle capillary tube is different, if in summer during cooling condition, throttle capillary tube length can satisfy performance matching requirements, and when then heating in the winter time, throttle capillary tube length just can not satisfy performance matching requirements.

Three, summary of the invention

The utility model provides a kind of refrigeration part, refers in particular to a kind of throttle mechanism of refrigeration system, can change the aperture of cold-producing medium throttling passage with the variation of cooling condition, to adapt to the coupling requirement of air conditioner load, improves the economy of air-conditioning refrigeration system.

The utility model solves the variation that its technical problem is how to make the capillary throttle mechanism adaptation condition in the minitype air conditioner refrigeration system.The technical scheme that the utility model adopted is for this reason: two kinds of schemes are arranged, a kind of one-way throttle scheme, comprise valve body and decide the piece composition, decide piece and in metal tube, also become an integral body with it, and capillary channel is run through in the axle center, valve body is by the stretching structure that spring is formed that is connected of cylindrical shape valve seat and cylindrical cone valve and centre, valve seat is fixed on the coolant channel center by metallic rod, passage can be blocked or open to cone valve over against the cold-producing medium capillary channel of deciding piece central authorities under the pressure effect that flow of refrigerant produces; A kind of is the bidirectional throttle scheme, comprise columniform motion block and decide piece and the valve body composition, wherein the two ends of motion block are the dome conical surface, and there is an aperture to run through the motion block axle center, be coolant channel, motion block can be free to slide in the cavity of deciding the formation of piece and duct wall, decide totally two of pieces, also fixed-piping inwall of the suitable distance of being separated by, the end face adjacent with motion block is the recessed taper seat that coincide with the motion block end face, the other end is the plane or the conical surface, decide piece end face a plurality of perforation apertures that distribute, and its axle center is the capillary passage aisle, is coolant channel, and two axial dimensions of deciding piece can be inequality, two valve bodies lay respectively at two and decide the piece outside, and valve body is by the stretching structure that spring is formed that is connected of cylindrical shape valve seat and cylindrical cone valve and centre, and valve seat is fixed on the coolant channel center by metallic rod, passage can be blocked or open to cone valve respectively over against the cold-producing medium capillary channel of deciding piece central authorities under the pressure effect that flow of refrigerant produces.

The beneficial effects of the utility model are: can change the aperture of cold-producing medium throttling passage with the variation of cooling condition, to adapt to the coupling requirement of air conditioner load, improve the economy of air-conditioning refrigeration system; For bi-directional configuration, can also can adopt the length of different throttling passages in refrigeration when heating respectively, the performance matching requirements of throttling passage when coming to satisfy refrigeration and heat respectively.

Four, description of drawings

Accompanying drawing 1 is bi-directional configuration figure of the present utility model, and accompanying drawing 2 is check configuration figure of the present utility model, and accompanying drawing 3 is for to decide the piece end view, and accompanying drawing 4 is the motion block end view.Accompanying drawing 5 is the fixing view of valve seat

.1-decides piece in the accompanying drawing 1,2-decides piece, 3-motion block, 4-metal circular tube, 5-valve seat, 6-seating spring, 7-cone valve.

.8-decides piece, 9-valve seat, 10-seating spring, 11-cone valve, 12-metal circular tube in the accompanying drawing 2.

.13-decides piece inner refrigerant passage in the accompanying drawing 3, and 14-decides capillary channel in the piece.

.15-motion block inner refrigerant passage in the accompanying drawing 4.

.16-valve body in the accompanying drawing 5, the metallic rod of 17-fixed valve body

Five, the specific embodiment

Bi-directional configuration of the present utility model by decide piece 1, motion block 3, decide piece 2, metal circular tube 4, valve seat 5, seating spring 6, cone valve 7 form; Check configuration is by deciding piece 8, valve seat 9, seating spring 10, cone valve 11, metal circular tube 12.

Bi-directional configuration form: decide piece 1, motion block 3 and decide piece 2 and place in the metal circular tube 4, decide piece 1 and decide 2 liang of end faces that match with motion block 2 of piece to separate suitable distance and be oppositely arranged, and be separately fixed at metal circular tube 4 inwalls, motion block 3 places two to decide between the piece, and can be free to slide, two valve bodies lay respectively at two and decide piece 1,2 the outside, cone valve 7 links to each other with valve seat 5 by seating spring 6, the awl end of cone valve 7 is respectively over against deciding piece 1, the cold-producing medium capillary channel of 2 central authorities, flow to from an end of metal circular tube 4 when cold-producing medium like this, through deciding each coolant channel on the piece, motion block slides to another and decides piece under cold-producing medium promotes, and sealing should decide on the piece except that the capillary passage all the other all coolant channels, cold-producing medium can only flow out by the capillary channel of Slave Block axial channel through deciding on the piece, the cone valve of this end can change aperture with the pressure size that flow of refrigerant produces, and vice versa; Because two axial dimensions of decide piece can be inequality, thus cold-producing medium flow the capillary channel length that is experienced from both direction just can be inequality, so just can satisfy respectively and freeze and the capillary pipe length of required coupling when heating.

Check configuration form: decide piece 8 and valve seat 9 and be fixed in respectively in the metal circular tube 12, cone valve 11 links to each other with valve seat 9 by seating spring 10, the awl of cone valve 11 is rectified deciding the cold-producing medium capillary channel of piece 8 central authorities, flow to from an end of metal circular tube 12 when cold-producing medium like this, through deciding cold-producing medium capillary channel on the piece, cold-producing medium can only flow out by the capillary channel of Slave Block axial channel through deciding on the piece, the cone valve of this end can change aperture with the pressure size that flow of refrigerant produces, otherwise, cold-producing medium comes from other end stream, then cone valve 11 will be blocked the capillary channel of deciding on the piece 8, and cold-producing medium can't pass through, thereby its one-way throttle effect of this structure.

Claims

1. air conditioner refrigerating thermal expansion pipe, two kinds of schemes are arranged: a kind of check configuration comprises valve body and decides piece that valve body is positioned at an end of deciding piece; A kind of is bi-directional configuration, comprises columniform motion block and decides piece and the valve body composition; It is characterized in that: the aperture of cone valve can change with refrigerant pressure.

2. according to the described air conditioner refrigerating thermal expansion of claim 1 pipe, it is characterized in that: with cone valve and be connected the extrusome that spring is formed, valve seat is fixed on tube hub to valve body by valve seat, and cone valve is over against the capillary channel of deciding the piece center.

3. according to the described air conditioner refrigerating thermal expansion of claim 1 pipe, it is characterized in that: the two ends of motion block are the convex cone face, and the axle center has one to run through passage aisle.

4. according to the described air conditioner refrigerating thermal expansion of claim 1 pipe, it is characterized in that: the decide piece end face adjacent with motion block is the concave cone face that coincide with the motion block end face, a plurality of axial perforation apertures are arranged, and its axle center hole is a capillary channel.