CN201106967Y

CN201106967Y - Air conditioner refrigeration baffling component

Info

Publication number: CN201106967Y
Application number: CNU2007200761154U
Authority: CN
Inventors: 陈文勇
Original assignee: JUNLE REFRIGERATION AUTOMATIC CONTROL ELEMENT CO Ltd SHANGHAI
Current assignee: JUNLE REFRIGERATION AUTOMATIC CONTROL ELEMENT CO Ltd SHANGHAI
Priority date: 2007-11-13
Filing date: 2007-11-13
Publication date: 2008-08-27
Anticipated expiration: 2017-11-13

Abstract

The utility model provides an air conditioning and refrigeration throttleer, which comprises a shell body, and also comprises a valve seat, a valve needle and a spring, the valve seat is fixed in the interior of the shell body, and the valve seat is internally provided with a throttle hole; the top end of the valve needle is a taper diversion surface, and the spring is fixed between the valve needle and the valve seat. The valve needle does the relative motion relative to the valve seat; the adjusting to the refrigerant flow is realized through the mutual movement of the valve needle and the valve seat at the two sides of the valve seat under the action of the spring and the difference of the condensing pressure and the evaporating pressure of the system; at the same time, a group of valve needles and springs can be added, thereby realizing the adjusting to the bidirectional flow of the refrigerant, possessing a better flow regulation capacity compared with the capillary tube, being able to adapt to the variation of the working condition within a large temperature range, maintaining the refrigeration system to have higher energy efficiency ratio, improving the economical efficiency of the system, having simple structure and small volume, reducing the workload of the pipe welding, decreasing the possibility of the outer leakage, greatly reducing the cost, and realizing the purpose of the utility model.

Description

A kind of air conditioner refrigerating throttle part

Technical field

The utility model relates to a kind of throttle mechanism, particularly a kind of throttle part that is used on the air conditioner refrigerating.

Background technology

At present, the throttle mechanism great majority of small refrigeration systems such as domestic air conditioning all adopt capillary, and capillary have low price, simple in structure, can two-way flow etc. advantage, but it can not regulate refrigerant flow in the refrigeration system according to the variation of cooling condition, causes refrigerating efficiency to reduce along with the variation of cooling condition easily.

The throttle mechanism of existing small refrigeration systems also has several restricting elements except extracapillary, as: restriction sleeve and electric expansion valve etc.Restriction sleeve can be regarded a very short capillary as, and to the system of identical cold, its aperture is littler than capillary, and material cost is also few.But because the aperture is too small, flow is very responsive to the throttle orifice diameter, and system easily produces dirty stifled, problem such as ice is stifled, produces in batches restive.Electric expansion valve is actually the needle valve that a stepper drives, and it rotatablely moves stepping motor rotor, is converted into moving up and down of needle by screw thread, thereby changes the valve port size, changes flow.It must and temperature (or pressure) sensor, controller work an executing agency in the control system in fact just together.Advantages such as it is strong that electric expansion valve has the adaptation condition ability, and reaction speed is fast, but that subject matter is cost is too high.

Because above-mentioned, the application in present small-sized household refrigeration system of restriction sleeve and electric expansion valve is fewer, use maximum still capillaries.

And because the relation in season, domestic air conditioning refrigeration in summer differs greatly with the operating mode of winter heating, and is also different to length requirement capillaceous.The conversion that the form that small refrigeration systems such as general domestic air conditioning adopt main and auxiliary capillary to add check valve is come realization system refrigeration and heated, owing to increased auxilliary capillary and check valve, the volume of whole assembly and cost all increase greatly.

The utility model content

The purpose of this utility model provides a kind of air conditioner refrigerating throttle part, and it can carry out certain adjusting to the flow of refrigeration system, can conveniently realize the forward and reverse mobile of different flow characteristic simultaneously again.Have simple in structure, the advantage that cost is low.

The technical problem that the utility model solved can realize by the following technical solutions:

A kind of air conditioner refrigerating throttle part, it comprises housing, it is characterized in that, and it also comprises valve seat, needle and spring, and described valve seat is fixed on the inside of described housing, is provided with throttle orifice in the described valve seat; The top of described needle is a taper guide face, and described spring is fixed between described needle and the valve seat.Described needle is with respect to described valve seat relative motion.

Described throttle part comprises two groups of needles and spring, in the two ends of the throttle orifice that inserts described valve seat respectively that the top of described every group of needle is relative, described spring is separately fixed between every group of needle and the valve seat, realize the adjusting of cold-producing medium two-way flow, to reach refrigeration and the requirement that heats the different throttling degree of depth.

The bottom of described needle is provided with fixed block, is provided with installing hole in the described baffle plate, and described fixed block is corresponding with installing hole, and described baffle plate is installed on the described needle by installing hole.

Described baffle plate is provided with some guiding gutters, and the diameter of described baffle plate is corresponding with the internal diameter of described housing.

A kind of air conditioner refrigerating throttle part of the present utility model is realized the adjusting of flow of refrigerant by the mutual motion under the effect of the difference of valve seat both sides system condensing pressure and evaporating pressure and spring of needle and valve seat; Simultaneously can increase by one group of needle and spring, realize the adjusting of cold-producing medium two-way flow, capillary has Flow-rate adjustment ability preferably relatively, can be in the variation of big temperature range endoadaptation operating mode, keep refrigeration system to have higher Energy Efficiency Ratio, the economy of raising system, simple in structure, volume is little, and the workload of minimizing pipeline welding, reduce the possibility of external leaks, cost also reduces greatly, realizes the purpose of this utility model.

Description of drawings

Fig. 1 is the structural representation of the throttle pipe of one-way flow adjusting of the present utility model;

Fig. 2 is the structural representation of needle of the present utility model;

Fig. 3 is the structural representation of baffle plate of the present utility model;

Fig. 4 is the generalized section of Fig. 3;

Fig. 5 is the structural representation of the throttle pipe of two-way flow adjusting of the present utility model.

The specific embodiment

For technological means, creation characteristic that the utility model is realized, reach purpose and effect is easy to understand, below in conjunction with concrete diagram, further set forth the utility model.

Embodiment 1

As shown in Figure 1, a kind of air conditioner refrigerating throttle part of one-way flow, it comprises metal tube 1, also comprises valve seat 2, needle 3, spring 4 and baffle plate 5.

Valve seat 2 is fixed on the inside of metal tube 1, closely cooperates with metal tube 1, can not move; Be provided with throttle orifice 21 in the valve seat 2, can flow through cold-producing medium; The top of needle 3 is a taper guide face 31, and insert in the throttle orifice 21 of valve seat 2 on the top of needle 3, and the bottom of needle 3 is fixed with baffle plate 5, and spring 4 is sleeved on the needle 3, is fixed between valve seat 2 and the baffle plate 5.(referring to Fig. 2)

As shown in Figure 3, Figure 4, baffle plate 5 is provided with some guiding gutters 51, can flow through cold-producing medium, be provided with installing hole 52 in the baffle plate 5, the bottom of needle 3 is provided with fixed block 32, fixed block 32 is corresponding with installing hole 52, makes between baffle plate 5 and the needle 3 to closely cooperate, and baffle plate 5 is installed on the needle 3 by installing hole 52; The diameter of baffle plate 5 is corresponding with the internal diameter of metal tube 1.

The effect in system of throttle mechanism mainly is the throttling step-down, and cooperates the changes in flow rate of compressor to carry out Flow-rate adjustment.By we know to the analysis of refrigeration system, to deciding the refrigeration system of rotating speed compressor, when system starts condensing pressure and evaporating pressure relatively near the time, the flow of compressor is bigger, requires the flow of throttle mechanism also should be bigger.Along with system further moves, the system condensing increased pressure, evaporating pressure reduces, and requires the throttle mechanism flow to reduce gradually.

As shown in Figure 1, cold-producing medium is to flow from left to right, and when system just started, needle 3 pressure at both sides differences were little, and needle 3 is moved to the left under the promotion of spring 4, and valve port opening is bigger, and flow is corresponding bigger; After system's pressure reduction was set up, needle 3 was pushed to right-hand, and with the spring force balance, valve port opening is less, and flow is corresponding less.

Embodiment 2

As shown in Figure 5, a kind of air conditioner refrigerating throttle part of two-way flow, it comprises metal tube 1, also comprises valve seat 2,

baffle plate

5,8,

needle

3,6 and

spring

4,7.

The left-half of the air conditioner refrigerating throttle part of described two-way flow and the throttle pipe of the one-way flow among the embodiment 1 are identical, and valve seat 2 is fixed on the inside of metal tube 1, closely cooperates with metal tube 1, can not move; Be provided with throttle orifice 21 in the valve seat 2, can flow through cold-producing medium; The top of needle 3 is a taper guide face 31, and in the left end of the throttle orifice 21 of the top insertion valve seat 2 of needle 3, the bottom of needle 3 is fixed with baffle plate 5, and spring 4 is contained between valve seat 2 and the baffle plate 5.

Different is to increase baffle plate 8, needle 6 and a spring 7 on the right of valve seat 2 with structure among the embodiment 1.The structure of baffle plate 8 is identical with embodiment 1, in the right-hand member of the throttle orifice 21 of the top insertion valve seat 2 of needle 6.The angle of the taper guide face 61 of needle 6 or shape are different with the angle or the shape of the taper guide face 31 of needle 3, and the coefficient of elasticity of spring 7 is also different with spring 4, the different flow control when realizing refrigeration (forward flow) and heating (reverse flow).

More than show and described basic principle of the present utility model and principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; that describes in the foregoing description and the specification just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications; these changes and improvements all fall in claimed the utility model scope, and the claimed scope of the utility model is defined by appending claims and equivalent thereof.

Claims

1, a kind of air conditioner refrigerating throttle part, it comprises housing, it is characterized in that, and it also comprises valve seat, needle and spring, and described valve seat is fixed on the inside of described housing, is provided with throttle orifice in the described valve seat; The top of described needle is a taper guide face, and described spring is fixed between described needle and the valve seat.Described needle is with respect to described valve seat relative motion.

2, air conditioner refrigerating throttle part as claimed in claim 1, it is characterized in that, described throttle part comprises two groups of needles and spring, in the two ends of the throttle orifice that inserts described valve seat respectively that the top of described every group of needle is relative, described spring is separately fixed between every group of needle and the valve seat, realize the adjusting of cold-producing medium two-way flow, to reach refrigeration and the requirement that heats the different throttling degree of depth.

3, air conditioner refrigerating throttle part as claimed in claim 1 or 2 is characterized in that, described baffle plate is provided with some guiding gutters, and the diameter of described baffle plate is corresponding with the internal diameter of described housing.

4, air conditioner refrigerating throttle part as claimed in claim 1 or 2, it is characterized in that the bottom of described needle is provided with fixed block, be provided with installing hole in the described baffle plate, described fixed block is corresponding with installing hole, and described baffle plate is installed on the described needle by installing hole.

5, air conditioner refrigerating throttle part as claimed in claim 2 is characterized in that, the angle difference of the taper guide face of described two groups of needles, the coefficient of elasticity difference of described two groups of springs.