CN207019349U - A kind of current divider - Google Patents

Abstract

The utility model provides a kind of current divider, belongs to technical field of refrigeration equipment.It solves the problems, such as that the shunting performance of existing current divider is low.This current divider, including housing, shell one end has reflecting part, reflection counterbore and some tap holes are offered on reflecting part inner face respectively, also there are confined planes in inner walls, housing and reflecting part are integral type structure, forming body is provided with housing, forming body outer face is the conical surface, the housing other end is shunk to form location division, and location division has orientational cone-shaped surface, and forming body is positioned between confined planes and orientational cone-shaped surface, reflection cavity is formed between forming body inner face and reflecting part inner face, the jet orifice of insertion is offered on the inner face of forming body.This shunting utensil has preferably shunting performance, and uses more stable, safety.

Description

A kind of current divider

Technical field

The utility model belongs to technical field of refrigeration equipment, is related to a kind of current divider.

Background technology

Current divider is the part commonly used in refrigeration plant, enters flow tube and some isocons for connecting refrigerant, will Enter the refrigerant in flow tube to branch in some isocons by current divider, such as Chinese utility model application (application number： 201320576381.9) a kind of idle call current divider disclosed in, including current divider body, current divider body is interior to have liquid separation chamber, Liquid separation intracavitary is provided with the ejector being connected with feed tube, and current divider body output end is provided with multiple shuntings connected with liquid separation chamber Hole, the refrigerant that ejector is injected branches to some isocons by tap hole, but refrigerating fluid is all in actual use Uneven gas-fluid two-phase mixture, it is necessary to current divider can uniform divided flows gas-fluid two-phase mixture, but current divider each several part Damp inconsistent, when fluid is different by caused pressure drop, in the presence of pressure differential, damping small tap hole gas-liquid can also Mixing is kept, damps big tap hole gas-liquid separation, while the internal pressure of current divider is larger, if using lower-cost Huang Copper product easily ftractures, using the higher copper product of purity as shown in the Figure of description 2 of the documents, ejector and body It is solid material, causes cost higher, and refrigerant enters flow tube and the higher copper product of isocon generally use purity is made, If welded with the ejector and body of different purity, weld strength is relatively low, easily occurs bursting or explosion phenomenon.

For gas-liquid mixed in above-mentioned documents it is uneven the problem of, Chinese invention patent application (application number： 201110223906.6) a kind of Reflecting refrigerant flow divider, including housing are disclosed, on housing be provided with shunting reflector and Jet pipe, shell inner surface and shunting reflector inner face form the reflecting chamber that can carry out gas-liquid mixed reflection, shunting reflection Reflection counterbore is provided with internal end face and some circumferentially the uniform tap hole in direction, jet pipe connection are anti-centered on reflecting counterbore The spout for penetrating cavity and jet pipe faces reflection counterbore, and the current divider is internally provided with some catoptric arrangements, but reflection cavity Bulk size directly affects the reflecting effect of refrigerant, and needs first to process the shell of tubular in above-mentioned current divider process Body, the spout of necking formation connecting spray nozzle is carried out to the end of housing after housing and reflector assembling, it is difficult in necking down process Accurately to ensure the shape of housing, that is, it is difficult to ensure that the bulk precision of reflection cavity, and the essence of the taper working face on housing Degree is also difficult to ensure that, and in use, deforming, which also easily occurs, in housing etc. influences the factor of reflection cavity bulk precision, Reduced so as to cause to shunt performance.

The content of the invention

The purpose of this utility model is above mentioned problem be present for existing technology, it is proposed that a kind of current divider, the shunting Utensil has preferably shunting performance, and uses more stable, safety.

The purpose of this utility model can be realized by following technical proposal：A kind of current divider, include the housing of tubular, institute Stating one end of housing has reflecting part, offers reflection counterbore on the inner face of the reflecting part respectively and some circular reflections are heavy The tap hole of pore size distribution, also there are the confined planes towards the other end on the inwall of the housing, it is characterised in that the housing with Reflecting part is integral type structure, is provided with forming body in the housing, and the forming body outer face is the conical surface, the housing it is another End is shunk radially inward forms the location division with interface, and location division has the locating cone being adapted with forming body outer face Face, the forming body are positioned between confined planes and orientational cone-shaped surface, the inner face of the forming body and the inner face of reflecting part it Between form reflection cavity, the jet orifice of insertion is offered on the inner face of the forming body.

Interface enters flow tube for connecting refrigerant, and tap hole is used to connect refrigerant isocon, and refrigerant is entered by interface, By being injected after jet orifice in reflection cavity, gas-liquid mixed is equal after the inwall by reflecting counterbore and reflection cavity is reflected It is even, some refrigerant isocons then are branched to by some tap holes, wherein because reflecting part and housing are integral type structure, and Location division with interface is formed by housing shrinkage, therefore this shunting utensil has the outer wrap structure of an integral type, does not have Binding site, so as to bear higher internal pressure, explosion, explosion phenomenon are avoided the occurrence of, structural stability and security are more Height, and integral structure also enables housing and reflecting part to use to enter flow tube and isocon identical with refrigerant and be not easy The material manufacture of cracking, the welding between the different materials that compare, the housing and reflecting part and refrigerant of this current divider enter flow tube And there is higher bonding strength after isocon welding, so as to avoid welding position is cracking, leakage phenomenon, further , for the space size precision of integral type processing back reflection chamber, this transmitter sets forming body to be controlled in housing, has Body, it can be set in processing according to the size of reflection cavity to process the confined planes position in inner walls, and split comes out Forming body inner face machining accuracy it is also higher, then forming body is set contraction sizing is carried out to housing to after in housing, And shrink setting process and operated by screw pressing closing machine, screw pressing closing machine is a kind of existing equipment, can rotate housing And housing exterior walls are extruded by pressure ball so that shell end is radially shunk, higher so as to obtain bulk precision Reflection cavity, and then improve current divider shunting performance, due to forming body need effectively be pressed on confined planes and can be formed The reflection cavity being sized, the conical surface is used for the outer face of this forming body so that it is fixed that the housing other end is formed by shrinking process Axial thrust load can be produced to forming body, the axial thrust load is able to ensure that forming body is effectively pressed on limit during the orientational cone-shaped surface in position portion On plane, so that it is guaranteed that reflection cavity dimensional accuracy, and then improve the shunting performance of current divider；And the structure can also be according to client Demand adjusts the size of reflection cavity to process, so as to obtain the split ratio of needs, certainly because forming body primarily serves regulation instead The effect of chamber size is penetrated, therefore the material of advantage of lower cost can be used to make, to reduce production cost.

In above-mentioned current divider, circumferentially there is step in the inner walls, above-mentioned confined planes are the end face of step.Platform The end face of rank is more preferable to the support effect of forming body, to ensure the dimensional accuracy of reflection cavity.

In above-mentioned current divider, circumferentially there is some stopper protrusions, the stopper protrusion direction in the inner walls The end face of the housing other end is above-mentioned confined planes.Confined planes in circumferentially distributed some stopper protrusions are in the circumferential to sizing Body produces axial limiting support, has preferable support effect, to ensure the dimensional accuracy of reflection cavity.

In above-mentioned current divider, there is reflecting surface around jet orifice on the inner face of the forming body, the reflecting surface with Some tap holes are relative.The refrigerant that jet orifice is injected sprays to reflection counterbore, the reflection being reflected towards through reflecting counterbore on forming body Face, then branch to each tap hole through reflective surface, i.e. reflecting surface can make refrigerant air-liquid mixing more uniform, so as to improve The shunting performance of current divider.

In above-mentioned current divider, the reflecting surface for annular concave surface, and reflecting surface cross section is curved or V Shape.Because reflecting surface is arranged on forming body, therefore accurate in advance before forming body loads housing it can process, without similar shape The reflecting surface of shape has different reflecting effects, as that can be positive arc or inclined arc when the cross section of reflecting surface is curved, when anti- Penetrate face cross section it is V-shaped when, i.e., reflecting surface is docked by two conical surfaces and formed, now by change two conical surfaces taper can The reflecting surface of different reflecting effects is obtained, specifically setting processing can be carried out according to customer demand, applicability is more preferable.

In above-mentioned current divider, the reflecting surface is the inner face of forming body, and reflecting surface is the conical surface.The reflecting surface can To be that inside edge is higher than inside edge higher than outer edge or outer edge, while its taper can also be set as needed Fixed processing, so as to obtain the reflecting surface of different reflecting effects, applicability is more preferable.

In above-mentioned current divider, the reflection counterbore is located at the center of reflecting part inner face, some above-mentioned shuntings Orifice ring is circumferentially uniform around reflection hole, and the reflection counterbore is relative with jet orifice, and reflection can be made by being additionally provided with reflection counterbore The uniform catoptric arrangement of gas-liquid mixed.The refrigerant that jet orifice is injected can accurately inject reflection counterbore so that reflection counterbore Uniformly it can be reflected to surrounding, wherein the catoptric arrangement in reflection counterbore can make gas-liquid mixed more uniform in reflection, So as to improve reflecting effect.

In above-mentioned current divider, the bottom surface of the reflection counterbore is flat face, and the catoptric arrangement includes some be located at On reflection counterbore bottom surface and reflection convex edge in a ring, the diameters of some reflection convex edges differ, and some reflections are convex There is identical center line along with reflection counterbore.System can be reflected to different angle by reflecting the lateral surface that convex edge tilts or bent Cryogen, so as to reach the uniform effect of gas-liquid mixed, and reflect convex edge in a ring so that refrigerant is reflected reflection counterbore When can uniformly be sprayed to surrounding.

In above-mentioned current divider, the reflection counterbore has the inwall of straight-tube shape, and the catoptric arrangement is reflection counterbore The taper bottom surface of bottom.The bottom surface of reflection counterbore taper can be such that refrigerant is reflected to different angle, so that gas-liquid Mixing is more uniform, improves reflecting effect.

In above-mentioned current divider, the interface edge of the location division outwards turns down the adapter portion for forming tubular, described to penetrate Discharge orifice is stepped hole, and the diameter of jet outer end of hole is more than inner diameter, the diameter of the jet outer end of hole with adapter portion The diameter in hole is identical, and the inner diameter of the jet orifice is less than or equal to the diameter of reflection counterbore.Adapter portion is with location division Integral structure, there is preferable structural stability, and refrigerant enters flow tube through insertion jet outer end of hole after adapter portion endoporus And with the step surface in jet orifice against, flow tube is entered to refrigerant and preferably positioned, and the inner diameter of jet orifice is less than or Equal to the diameter of reflection counterbore, so as to ensure that the refrigerant that jet orifice sprays can inject reflection counterbore.

In above-mentioned current divider, the housing and reflecting part are formed using red copper finish forge, and the forming body uses brass Finish forge is formed.Red copper purity is higher, and toughness is strong, not easy to crack so that the stability of housing is higher, and forming body primarily serves limit Determine reflection cavity size, therefore manufactured using lower-cost brass.

Compared with prior art, this shunting utensil has the advantage that：

1st, because reflecting part and housing are integral type structure, and the location division with interface is formed by housing shrinkage, therefore This shunting utensil has the outer wrap structure of an integral type, is not bound with a little, so as to bear higher internal pressure, keeps away Exempt from explosion, explosion phenomenon occur, structural stability and security are higher.

2nd, due to that can be set in processing according to the size of reflection cavity to process the confined planes position in inner walls, from And the higher reflection cavity of bulk precision can be obtained, and then improve the shunting performance of current divider.

3rd, because reflecting surface is arranged on forming body, therefore can be pre-machined before forming body loads housing, not only Machining accuracy is higher, and can process reflecting surface of different shapes to obtain different reflecting effects.

4th, because the outer face of forming body uses the conical surface so that the housing other end forms determining for location division by shrinking process During the conical surface of position axial thrust load can be produced to forming body, the axial thrust load is able to ensure that forming body is effectively pressed on confined planes, So that it is guaranteed that reflection cavity dimensional accuracy, and then improve the shunting performance of current divider.

Brief description of the drawings

Fig. 1 is the structure sectional view of current divider.

Fig. 2 is the structure sectional view at A-A in Fig. 1.

Fig. 3 is the structure sectional view at B-B in Fig. 1.

Fig. 4, Fig. 5 are the structure sectional views using the current divider of different shape reflecting surface.

Fig. 6 to Fig. 8 is the structure sectional view of the current divider using different shape reflecting surface in embodiment two.

Fig. 9, Figure 10 are the structure sectional views of the current divider using different shape reflecting surface in embodiment three.

Figure 11 is the structure sectional view of current divider in example IV.

Figure 12 is the structure sectional view of current divider in embodiment five.

In figure, 1, housing；11st, reflecting part；111st, counterbore is reflected；112nd, tap hole；12nd, location division；121st, interface；122、 Orientational cone-shaped surface；13rd, adapter portion；14a, step；14b, stopper protrusion；141st, confined planes；2nd, forming body；21st, jet orifice；22nd, it is anti- Penetrate face；3rd, catoptric arrangement；31st, convex edge is reflected；4th, reflection cavity.

Embodiment

It is specific embodiment of the utility model and with reference to accompanying drawing below, the technical solution of the utility model is made further Description, but the utility model is not limited to these embodiments.

Embodiment one：

As shown in figure 1, a kind of current divider, include the housing 1 of tubular, one end of housing 1 has reflecting part 11, the reflecting part 11 block one end of housing 1, and housing 1 is formed with reflecting part 11 using red copper integral type finish forge, with reference to shown in Fig. 2, anti- Penetrate on the inner face in portion 11 and offer a reflection counterbore 111 and four tap holes 112 respectively, reflection counterbore 111 is positioned at reflection The center in portion 11, four tap holes 112 are circumferential uniform around reflection counterbore 111 respectively, and the outer end of tap hole 112 is passed through Wear to the outer face of reflecting part 11, tap hole 112 is stepped hole, and outer end is relatively large in diameter, for connecting refrigerant shunting Pipe.Circumferentially there is step 14a, step 14a to have the step surface towards the other end, the step surface is spacing on the inwall of housing 1 Face 141, is additionally provided with the forming body 2 of brass material in housing 1, and the outer face of the forming body 2 is the conical surface, the other end of housing 1 Shrink radially inward and form the location division 12 of taper, the medial surface of the location division 12 is orientational cone-shaped surface 122, and orientational cone-shaped surface 122 are pressed on the outer face of forming body 2 so that the inner face edge of forming body 2 is pressed on confined planes 141, positioning The less one end of diameter of portion 12 is interface 121, and the edge of interface 121 outwards turns down the adapter portion 13 for forming tubular, for connecting Refrigerant enters flow tube, arc transition wherein between adapter portion 13 and location division 12, location division 12 and the straight drum part circular arc of housing 1 Transition.Reflection cavity 4, the inner face center of forming body 2 are formed between the inner face of forming body 2 and the inner face of reflecting part 11 The jet orifice 21 run through is offered, the jet orifice 21 is stepped hole, and the inner diameter of jet orifice 21 is less than outer diameter, jet The outer diameter in hole 21 is identical with the diameter of bore in adapter portion 13, and the outer end aperture edge of jet orifice 21 has arc angling, and Outer end is alignd with the endoporus of adapter portion 13, and the inner of jet orifice 21 is alignd with reflection counterbore 111, and the inner diameter of jet orifice 21 is small In the diameter of reflection counterbore 111, certainly during actual processing, the inner diameter of jet orifice 21 can be with reflection counterbore 111 Diameter is identical.

Specifically, with reference to shown in Fig. 3, there is the reflecting surface 22 of annular on the inner face of forming body 2, the reflecting surface 22 is Jet orifice 21 has an identical center line, and the inner of reflecting surface 22 and four tap holes 112 is relative, and wherein reflecting surface 22 is recessed Face, and the cross section of reflecting surface 22 is curved, with reference to shown in Fig. 4, Fig. 5, the cross section of reflecting surface 22 during actual processing Can be positive arc or inclined arc, to obtain different reflecting effects.Reflecting counterbore 111 has the hole wall of straight-tube shape, and reflects and sink The bottom surface in hole 111 is flat face, and reflecting on the bottom surface of counterbore 111 has some reflection convex edges 31 in a ring, and some reflections are convex Differed along 31 diameter, and some reflection convex edges 31 have identical center line with reflection counterbore 111, each reflection is convex Triangular in shape along 31 cross section, the cross section that convex edge 31 is reflected certainly during actual processing can also be arc.

Embodiment two：

The structure of the current divider and embodiment one are essentially identical, and difference is as shown in Figure 6 to 8, and reflecting surface 22 is The concave surface of annular, and the cross section of reflecting surface 22 is V-shaped, i.e., reflecting surface 22 is docked by two conical surfaces and formed, and now passes through change The taper of two conical surfaces can obtain the reflecting surface 22 of different reflecting effects, and setting can be specifically carried out according to customer demand and is added Work, applicability are more preferable.

Embodiment three：

The structure of the current divider and embodiment one are essentially identical, and difference is the inner face that reflecting surface 22 is forming body 2, And reflecting surface 22 is the conical surface, as shown in figure 9, the outer edge of reflecting surface 22 is higher than inside edge, can also be as shown in Figure 10, reflecting surface 22 inside edge is higher than outer edge, and the taper of reflecting surface 22 can carry out setting processing as needed, different anti-so as to obtain The reflecting surface 22 of effect is penetrated, applicability is more preferable.

Example IV：

The structure of the current divider and embodiment one are essentially identical, and difference is as shown in figure 11, and reflection counterbore 111 has The inwall of straight-tube shape, the bottom surface of reflection counterbore 111 is the taper of indent, refrigerant can be made to be reflected to different angle, from And make it that gas-liquid mixed is more uniform, improve reflecting effect.

Embodiment five：

The structure of the current divider and embodiment one are essentially identical, and difference is as shown in figure 12, circumferential on the inwall of housing 1 With some stopper protrusion 14b, stopper protrusion 14b towards the end face of the other end of housing 1 be above-mentioned confined planes 141, some limits Confined planes 141 on the convex portion 14b of position are vertical with the axial line of housing 1, and some confined planes 141 flush, and have to forming body 2 Preferable support effect, to ensure the dimensional accuracy of reflection cavity 4.

Specific embodiment described herein is only to the utility model spirit explanation for example.The utility model institute Category those skilled in the art can make various modifications or supplement to described specific embodiment or using similar Mode substitute, but without departing from spirit of the present utility model or surmount scope defined in appended claims.

Although more having used the terms such as housing 1, reflecting part 11, reflection counterbore 111 herein, it is not precluded from using it The possibility of its term.It is used for the purpose of more easily describing and explaining essence of the present utility model using these terms；It Be construed to any additional limitation and all disagreed with the utility model spirit.

Claims (9)

1. a kind of current divider, includes the housing (1) of tubular, one end of the housing (1) has reflecting part (11), the reflecting part (11) reflection counterbore (111) and some tap holes around reflection counterbore (111) distribution are offered on inner face respectively (112), also there are the confined planes (141) towards the other end, it is characterised in that the housing (1) on the inwall of the housing (1) It is integral type structure with reflecting part (11), forming body (2) is provided with the housing (1), forming body (2) outer face is cone Face, the other end of the housing (1) shrink the location division (12) to be formed with interface (121), and location division radially inward (12) there is the orientational cone-shaped surface (122) being adapted with forming body (2) outer face, the forming body (2) is positioned at confined planes (141) Between orientational cone-shaped surface (122), reflection cavity is formed between the inner face of the forming body (2) and the inner face of reflecting part (11) (4) jet orifice (21) of insertion, is offered on the inner face of the forming body (2).

2. current divider according to claim 1, it is characterised in that circumferentially there is step (14) on housing (1) inwall, Above-mentioned confined planes (141) are the end face of step (14).

3. current divider according to claim 1, it is characterised in that circumferentially have on housing (1) inwall some spacing Convex portion (14b), the stopper protrusion (14b) towards the end face of housing (1) other end be above-mentioned confined planes (141).

4. current divider according to claim 1, it is characterised in that around jet orifice on the inner face of the forming body (2) (21) there is reflecting surface (22), the reflecting surface (22) and some tap holes (112) are relative.

5. current divider according to claim 4, it is characterised in that the reflecting surface (22) is annular concave surface, and is reflected The cross section in face (22) is curved or V-arrangement.

6. current divider according to claim 4, it is characterised in that the reflecting surface (22) is the inner face of forming body (2), And reflecting surface (22) is the conical surface.

7. current divider as claimed in any of claims 1 to 6, it is characterised in that the reflection counterbore (111) is located at The center of reflecting part (11) inner face, some above-mentioned tap holes (112) are circumferentially uniform around reflection hole, the reflection counterbore (111) with jet orifice (21) relatively, being additionally provided with reflection counterbore (111) can make the gas-liquid mixed of reflection uniformly reflect knot Structure (3).

8. current divider according to claim 7, it is characterised in that the bottom surface of the reflection counterbore (111) is flat face, institute State catoptric arrangement (3) include it is some on reflection counterbore (111) bottom surface and reflection convex edge (31) in a ring, it is some described anti- The diameter for penetrating convex edge (31) differs, and some reflections convex edge (31) have identical center line with reflection counterbore (111).

9. current divider as claimed in any of claims 1 to 6, it is characterised in that the interface of the location division (12) (121) outwards turnover forms the adapter portion (13) of tubular at edge, and the jet orifice (21) is stepped hole, and jet orifice (21) outer end Diameter be more than inner diameter, the diameter of jet orifice (21) outer end is identical with the diameter of adapter portion (13) endoporus, described The inner diameter of jet orifice (21) is less than or equal to the diameter of reflection counterbore (111).