CN209623160U - A kind of throttle-type expansion valve - Google Patents

Abstract

The utility model relates to throttle-type expansion valve technical fields, and disclose a kind of throttle-type expansion valve, including auxiliary piece of valve body and flow mechanism, the external surface top that auxiliary piece of valve body is connect with main piece of valve body of outer surface bottom, main piece of valve body of middle part side is provided with outlet, the outer surface side of water inlet and the outer surface side of communicating pipe connect, the outer surface other side of communicating pipe and the outer surface side of helix tube connect, the outer surface other side of helix tube and the outer surface side of hose connect, the outer surface other side of hose and one lateral roof of outer surface of compressor connect, the inner surface side of outlet is connect with the outer surface that screw thread twists bolt.The use that the utility model passes through U-tube and communicating pipe etc., to prevent evaporator come out be not gaseous refrigerant, again because of the use of heating layer and atomization net etc., so when in use can be to liquid refrigerant initial atomization, so its vaporization effect can be improved in the device.

Description

A kind of throttle-type expansion valve

Technical field

The utility model relates to throttle-type expansion valve technical field, specially a kind of throttle-type expansion valve.

Background technique

Expansion valve is an important component in refrigeration system, is generally mounted between liquid storage cylinder and evaporator.Expansion valve The liquid refrigerant of medium temperature high pressure is set to become the moist steam of low-temp low-pressure by its throttling, then refrigerant absorbs in evaporator Heat reaches refrigeration effect, and expansion valve is changed by the degree of superheat of evaporator end come control valve flow, prevents evaporation The underutilization of device area and engine knock phenomenon.

Compressor, condenser, expansion valve, the big component of evaporator four have collectively constituted heat pump system, expansion valve can make through Evaporator evaporation gas liquefy by compressor boost to the liquid refrigerant of high temperature and pressure, and by its restriction throttle at For the misty liquid refrigerant of low-temp low-pressure, then refrigerant absorbs heat in evaporator and reaches refrigeration effect, then because External some reasons, such as the reason of situations such as temperature, ambient humidity, so as to lead to liquid refrigerant atomizing effect not It is good, it is not gas refrigerant so as to lead to that evaporator comes out, and existing device is mostly without solving this kind of function Device, so in response to this problem, can be designed that a kind of throttle-type expansion valve for improving its vaporization effect.

Utility model content

The purpose of this utility model is to provide a kind of throttle-type expansion valve, achieve the purpose that improve its vaporization effect.

To achieve the above object, the utility model provides the following technical solutions: a kind of throttle-type expansion valve, including valve body are auxiliary Block and flow mechanism, the flow mechanism includes live wire, U-tube, water inlet, communicating pipe, helix tube, hose, compressor, outer The external surface top of skin cylinder, heating layer and built-in scaldproof layer, auxiliary piece of the valve body is connect with main piece of valve body of outer surface bottom, institute It states main piece of valve body of middle part side and is provided with outlet, the inner surface top of the outlet and one side bottom of outer surface of U-tube connect It connects, is connect in the middle part of the outer surface of the U-tube with the inner surface of built-in scaldproof layer, the outer surface of the built-in scaldproof layer and heating The inner surface connection of layer, the outer surface of the heating layer are connect with the inner surface of crust cylinder, and the outer surface bottom of the U-tube is another The connection of the external surface top of side and water inlet, the outer surface side of the water inlet and the outer surface side of communicating pipe connect, The outer surface other side of the communicating pipe and the outer surface side of helix tube connect, the outer surface other side of the helix tube with it is soft The outer surface side of pipe connects, and the outer surface other side of the hose and one lateral roof of outer surface of compressor connect, it is described go out The inner surface side of mouth is connect with the outer surface that screw thread twists bolt.

Preferably, the inner surface other side of the outlet is connect with the outer surface side of screw thread short tube, and main piece of valve body Junction is provided with gasket in the middle part of the outer surface of one side external surface and screw thread short tube.

Preferably, auxiliary piece of the valve body of inside and the outer surface of screw connect, and valve body is run through in one end of screw Auxiliary piece and extend to main piece of valve body of inside.

Preferably, the outer surface bottom of the U-tube is connect with the external surface top of atomization net, and screw thread twists the appearance of bolt Face side and the outer surface side of heating sheet connect.

Preferably, the outlet is identical with the specification of water inlet, and the quantity of screw is two and two screws Specification is identical.

Preferably, channel is provided in the middle part of the built-in scaldproof layer, and the size in channel and the size of U-tube are mutually fitted Match.

The utility model provides a kind of throttle-type expansion valve.Have it is following the utility model has the advantages that

(1), the utility model passes through built-in scaldproof layer, helix tube, compressor, heating layer, U by throttle-type expansion sleeve Type pipe and communicating pipe it is isostructural be used in conjunction with each other, so can be preheated when in use to liquid refrigerant, with Exempt from evaporator vaporization it is insufficient, thus prevent evaporator come out be not gaseous refrigerant, and because have screw thread twist bolt, heat Piece, heating layer and atomization net it is isostructural be used in conjunction with each other, so when in use can be to the preliminary mist of liquid refrigerant Change, so it follows that its vaporization effect can be improved in the device.

(2), the utility model by auxiliary piece of valve body, outlet, gasket and main piece of valve body it is isostructural be used in conjunction with each other, So can preferably reach leakproofness when in use, thus avoid liquid refrigerant from leaking in certain degree, institute It follows that the device is more practical and leakproofness is good.

Detailed description of the invention

FIG. 1 is a schematic structural view of the utility model；

Fig. 2 is the right view partial structure diagram of the utility model Fig. 1；

Fig. 3 is partial enlargement structural representation at the A of the utility model Fig. 1.

In figure: auxiliary piece of 1 valve body, 2 screws, main piece of 3 valve bodies, 4 outlets, 5 flow mechanisms, 501 live wires, 502 U-tubes, It is 503 water inlets, 504 communicating pipes, 505 helix tubes, 506 hoses, 507 compressors, 508 crust cylinders, 509 heating layers, 510 built-in anti- Scald layer, 6 screw threads twist bolt, 7 heating sheets, 8 atomization nets, 9 screw thread short tubes, 10 gaskets.

Specific embodiment

As shown in Figure 1-3, the utility model provides a kind of technical solution: a kind of throttle-type expansion valve, including auxiliary piece 1 of valve body With flow mechanism 5, flow mechanism 5 includes live wire 501, U-tube 502, water inlet 503, communicating pipe 504, helix tube 505, soft Pipe 506, compressor 507, crust cylinder 508, heating layer 509 and built-in scaldproof layer 510, auxiliary piece 1 of valve body of external surface top and valve Main piece 3 of body of outer surface bottom overlap joint, main piece 3 of valve body of middle part side offers outlet 4, export at the top of 4 inner surface with it is U-shaped The one side bottom grafting of outer surface of pipe 502, the outer surface middle part of U-tube 502 and the inner surface of built-in scaldproof layer 510 are socketed, interior The inner surface of the outer surface and heating layer 509 that fill scaldproof layer 510 is socketed, the outer surface of heating layer 509 and the interior table of crust cylinder 508 Surface cover connects, the outer surface bottom other side of U-tube 502 and the external surface top grafting of water inlet 503, the appearance of water inlet 503 The outer surface side grafting of face side and communicating pipe 504, the outer surface other side of communicating pipe 504 and the outer surface of helix tube 505 Side is fixedly connected, the outer surface other side of helix tube 505 and the outer surface side grafting of hose 506, the outer surface of hose 506 The one lateral roof grafting of outer surface of the other side and compressor 507 exports 4 inner surface side and the outer surface spiral shell of the stubborn bolt 6 of screw thread Line connection, exports the 4 inner surface other side and is threadedly coupled with the outer surface side of screw thread short tube 9, and outside main piece 3 of valve body of side Junction is socketed with gasket 10 in the middle part of surface and the outer surface of screw thread short tube 9, and the inside that auxiliary piece 1 of valve body is outer with screw 2 Surface is threadedly coupled, and one end of screw 2 runs through auxiliary piece 1 of valve body and extends to main piece 3 of valve body of inside, U-tube 502 Outer surface bottom is Nian Jie with the atomization external surface top of net 8, and screw thread twists the outer surface side of bolt 6 and the outer surface of heating sheet 7 One side bonds, outlet 4 is identical with the specification of water inlet 503, and the quantity of screw 2 is the specification of two and two screws 2 Identical, the middle part of built-in scaldproof layer 510 offers channel, and the size in channel is adapted with the size of U-tube 502, the throttling Type expansion sleeve passes through built-in scaldproof layer 510, helix tube 505, compressor 507, heating layer 509, U-tube 502 and communicating pipe 504 It is isostructural to be used in conjunction with each other, so liquid refrigerant can be preheated when in use, in case evaporator vaporizes It is insufficient, so that prevent that evaporator from coming out is not gaseous refrigerant, and because there is screw thread to twist bolt 6, heating sheet 7, heating layer 509 Net 8 is isostructural is used in conjunction with each other with atomization, thus when in use can to liquid refrigerant initial atomization, so by This passes through the structures such as auxiliary piece 1 of valve body, outlet 4, gasket 10 and main piece 3 of valve body it is found that its vaporization effect can be improved in the device Be used in conjunction with each other, so can preferably reach leakproofness when in use, to avoid liquid in certain degree Cryogen leakage, so it follows that the device is more practical and leakproofness is good.

When in use, liquid refrigerant is entered to the inside of helix tube 505 by compressor 507 by hose 506, then Slowly enter U-tube 502 by the structures such as water inlet 503 and communicating pipe 504, then heating layer 509 fever to U-tube 502 Then heating is carrying out initial atomization to it by heating sheet 7 and atomization net 8, is then being entered inside evaporator by outlet 4.

It can to sum up obtain, which passes through built-in scaldproof layer 510, helix tube 505, compressor 507, heating layer 509, U-tube 502 and communicating pipe 504 it is isostructural be used in conjunction with each other, so when in use can be to liquid refrigerant It is preheated, in order to avoid evaporator vaporization is insufficient, so that prevent that evaporator from coming out is not gaseous refrigerant, and because there is screw thread Twisting bolt 6, heating sheet 7, heating layer 509 and atomization, net 8 is isostructural is used in conjunction with each other, so when in use can be to liquid Cryogen initial atomization, so it follows that its vaporization effect can be improved in the device, by auxiliary piece 1 of valve body, outlet 4, close Packing 10 and main piece of valve body 3 is isostructural is used in conjunction with each other, so can preferably reach leakproofness when in use, from And avoid liquid refrigerant from leaking in certain degree, so it follows that the device is more practical and leakproofness is good.

Claims (6)

1. a kind of throttle-type expansion valve, including auxiliary piece of valve body (1) and flow mechanism (5), it is characterised in that: the flow mechanism (5) include live wire (501), U-tube (502), water inlet (503), communicating pipe (504), helix tube (505), hose (506), Compressor (507), crust cylinder (508), heating layer (509) and built-in scaldproof layer (510), the outer surface of the valve body auxiliary piece (1) Top is connect with main piece of valve body (3) of outer surface bottom, and the middle part side of main piece of the valve body (3) is provided with outlet (4), described It exports and is connect at the top of the inner surface of (4) with one side bottom of outer surface of U-tube (502), in the outer surface of the U-tube (502) Portion is connect with the inner surface of built-in scaldproof layer (510), and the outer surface of the built-in scaldproof layer (510) is interior with heating layer (509) Surface connection, the outer surface of the heating layer (509) are connect with the inner surface of crust cylinder (508), outside the U-tube (502) The surface bottom portion other side is connect with the external surface top of water inlet (503), the outer surface side of the water inlet (503) be connected to Manage the outer surface side connection of (504), the outer surface other side of the communicating pipe (504) and the outer surface one of helix tube (505) Side connection, the outer surface other side of the helix tube (505) are connect with the outer surface side of hose (506), the hose (506) The outer surface other side connect with one lateral roof of outer surface of compressor (507), it is described outlet (4) inner surface side and screw thread Twist the outer surface connection of bolt (6).

2. a kind of throttle-type expansion valve according to claim 1, it is characterised in that: the inner surface of the outlet (4) is another Side is connect with the outer surface side of screw thread short tube (9), and the appearance of main piece of valve body (3) of a side external surface and screw thread short tube (9) Middle face junction is provided with gasket (10).

3. a kind of throttle-type expansion valve according to claim 1, it is characterised in that: the inside of the valve body auxiliary piece (1) with The outer surface of screw (2) connects, and one end of screw (2) through auxiliary piece of valve body (1) and extends to main piece of valve body (3) It is internal.

4. a kind of throttle-type expansion valve according to claim 1, it is characterised in that: the outer surface bottom of the U-tube (502) Portion is connect with the external surface top of atomization net (8), and screw thread twists the outer surface side of bolt (6) and the outer surface one of heating sheet (7) Side connection.

5. a kind of throttle-type expansion valve according to claim 3, it is characterised in that: the outlet (4) and water inlet (503) Specification it is identical, and the quantity of screw (2) be two and two screws (2) specification it is identical.

6. a kind of throttle-type expansion valve according to claim 1, it is characterised in that: in the built-in scaldproof layer (510) Portion is provided with channel, and the size in channel is adapted with the size of U-tube (502).