CN208296390U - Flow mixing device and household appliance - Google Patents

Abstract

The utility model provides a kind of flow mixing device and household appliance.Wherein, flow mixing device can be installed in refrigerant pipeline and be fixedly connected between two pipeline sections of refrigerant pipeline, and flow mixing device includes: expansion cavity sleeve and orifice plate, and expansion cavity sleeve has the expansion segment gradually expanded outwardly from both ends to centre；Orifice plate is placed in expansion cavity sleeve inner, and is fixed on the mid diameter maximum cross-section position of expansion segment, and the plate face of orifice plate is formed as the shock plane of disruption with fluid impact, and multiple mixed flow holes that the plane of disruption is hit in perforation are offered on orifice plate.Flow mixing device provided by the utility model is sufficiently mixed gas and liquid two phases refrigerant, realizing, which improves or eliminate refrigerant, flows abnormal sound, the effect of noise by adding orifice plate in the refrigerant process of circulation；And unnecessary differentiation direction when installation flow mixing device, that is, freezing and heating can generate mixed flow noise reduction effect using flow mixing device, improve the installation convenience and applicability of flow mixing device.

Description

Flow mixing device and household appliance

Technical field

The utility model relates to household appliance technical fields, more specifically, be related to a kind of flow mixing device and it is a kind of include the mixed flow The household appliance of device.

Background technique

The existing household appliance freezed or heated using refrigerant such as air conditioner, in operation of air conditioner, refrigerant pipeline In usually there is gas and liquid two phases refrigerant, due to gaseous coolant formed bubble cause in shattering process liquid refrigerants generate not Regular turbulent motion, the uneven pressure difference in turbulent flow cause pipeline Wall Vibration, to give off " hissing " coolant noise of sound, Influence user to the experience sense of product by.

Utility model content

The utility model aims to solve at least one of the technical problems existing in the prior art.

For this purpose, the purpose of the utility model one aspect is, a kind of flow mixing device is provided.

The purpose of the utility model other side is, provides a kind of household appliance including above-mentioned flow mixing device.

To achieve the above object, the technical solution of the utility model first aspect provides a kind of flow mixing device, the mixed flow Device can be installed in refrigerant pipeline and be fixedly connected between two pipeline sections of the refrigerant pipeline, and the flow mixing device includes: to expand Chamber sleeve is opened, there is the expansion segment gradually expanded outwardly from both ends to centre；And orifice plate, it is placed in the expansion cavity sleeve inner, And be fixed on the mid diameter maximum cross-section position of the expansion segment, the plate face of the orifice plate be formed as with fluid impact The plane of disruption is hit, and is offered on the orifice plate and penetrates through the multiple mixed flow holes for hitting the plane of disruption.

The flow mixing device that the utility model above-mentioned technical proposal provides, can be installed in refrigerant pipeline and be fixedly connected on cold Between two pipeline sections of matchmaker's pipeline, for reducing the flow noise of refrigerant in refrigerant pipeline, specifically, flow mixing device includes expansion cavity set Cylinder and the orifice plate for being placed in expansion cavity sleeve inner are hit by adding orifice plate in the refrigerant process of circulation using what is formed on orifice plate The broken drag effect in face of fluid is broken up, so that the big breakup of drop becomes multiple to be sufficiently mixed with the bubble in fluid The droplet of dispersion；Along fluid flow direction, air pocket is being broken into minute bubbles behind multiple mixed flow holes on orifice plate, with Fluid liquid is sufficiently mixed, so that the gas and liquid two phases refrigerant in refrigerant pipeline is sufficiently mixed, reaching makes refrigerant smooth flow Purpose, realizing, which improves or eliminate refrigerant, flows abnormal sound, the effect of noise, promoted user to the experience sense of product by；Due to hole Plate is fixed on the mid diameter maximum cross-section position of expansion segment, and no matter refrigerant is flowed along which direction in this way, passes through in refrigerant stream The expansion segment that fluid first passes through positioned at orifice plate side in journey carries out water conservancy diversion, reduces the separation of flow phenomenon in process fluid flow, subtracts Small turbulent extent is installed unnecessary differentiation direction when flow mixing device in this way, that is, is made to be conducive to be promoted the smooth flow of refrigerant Cold and heating generates mixed flow noise reduction effect, improves the installation convenience and applicability of flow mixing device.

Specifically, understanding from the angle of hydrodynamics, duct acoustics, when existing air conditioner works, due to gaseous coolant The bubble of formation causes liquid refrigerants to generate irregular turbulent motion in shattering process, and the uneven pressure difference in turbulent flow causes pipe Road Wall Vibration, to give off " hissing " coolant noise of sound；The utility model above-mentioned technical proposal, it is former from the acoustic radiation of pipe stream Reason is set out, by installing flow mixing device in refrigerant pipeline, refrigerant is shunted using the orifice plate for being placed in expansion cavity sleeve inner, It is broken, so that air-liquid refrigerant is sufficiently mixed, to keep the flowing of refrigerant more stable, it is reduced or avoided because in liquid refrigerants turbulent flow Uneven pressure difference and generation the case where cause pipeline Wall Vibration, so as to improve refrigerant flowing abnormal sound, noise even has been eliminated； In addition, the setting of expansion cavity sleeve, can increase the global sections product of the runner of setting orifice plate, so that it is guaranteed that the setting of orifice plate The proper flow speed of refrigerant is not influenced, so that it is guaranteed that the operation of the normal table of refrigeration or heating system.

In addition, the flow mixing device that the utility model above-mentioned technical proposal provides can also have following additional technical feature:

In the above-mentioned technical solutions, it is preferable that the orifice plate is placed in the expansion cavity sleeve inner, and to the expansion The orifice plate is fixed on the mid diameter maximum cross-section position of the expansion segment by chamber sleeve by spinning necking down process when processing.

The mid diameter maximum that orifice plate is fixed on expansion segment is cut by spinning necking down process in the processing of expansion cavity sleeve Face position namely expansion cavity sleeve use integral forming process, and are directly fixed on orifice plate when forming expansion cavity sleeve Expansion cavity sleeve inner, so that the fixation of orifice plate, fixed form are simple.

In the above-mentioned technical solutions, it is preferable that the expansion segment includes two cone expansion sections, two cone expansions The big end of section is oppositely arranged and is connected, and two cone expansion sections are with the intermediate cross-section of the expansion segment length direction It is symmetrical set for the plane of symmetry.

Expansion segment includes two cone expansion sections that big end is oppositely arranged, and orifice plate is located between two cone expansion sections, this No matter refrigerant flows sample along which direction, and fluid first passes through the cone expansion section positioned at orifice plate side in the refrigerant process of circulation Water conservancy diversion is carried out, the separation of flow phenomenon in process fluid flow is reduced, reduces turbulent extent, namely by special to expansion cavity sleeve Structure design, promotes the stationarity of refrigerant flowing, promotes the effect for eliminating or improving refrigerant flowing abnormal sound；Two cone expansion sections It is symmetrical set using the intermediate cross-section of expansion segment length direction as the plane of symmetry, unnecessary differentiation side when flow mixing device is installed in this way To freezing and heating generates same mixed flow noise reduction effect, improves the installation convenience and applicability of flow mixing device.

In the above-mentioned technical solutions, it is preferable that the big end cross-sectional area and the cone expansion of the cone expansion section The ratio between small end cross-sectional area of section is more than or equal to 8；And/or the side wall of the cone expansion section is relative to the expansion segment axis The tilt angle of line is less than or equal to 10 degree.

The ratio between big end cross-sectional area and the small end cross-sectional area for designing cone expansion section are more than or equal to 8, to ensure to bore The big end of shape expansion segment has biggish cross-sectional area, on the one hand ensures the diversion effect of cone expansion section, to utilize taper Expansion segment effectively reduces the separation of flow phenomenon in process fluid flow, reduces turbulent extent, promotes mixed flow noise reduction effect；On the other hand It can make the orifice plate for being installed on cone expansion section big end that there is larger diameter and larger sectional area, so that it is guaranteed that multiple on orifice plate The sum of the sectional area in mixed flow hole is larger, and then ensures not will lead to refrigerant flowing velocity when refrigerant passes through orifice plate and slow down；Design cone The side wall of shape expansion segment is less than or equal to 10 degree, namely the side of design cone expansion section relative to the tilt angle of expansion segment central axes The tilt angle of wall is smaller, to ensure the diversion effect of cone expansion section, realizes and effectively reduces fluid stream using cone expansion section Separation of flow phenomenon during dynamic reduces turbulent extent, promotes the purpose of mixed flow noise reduction effect.

In any of the above-described technical solution, it is preferable that the expansion cavity sleeve, which has, is connected to the expansion segment two First linkage section and the second linkage section at end, the flow mixing device are connected institute by first linkage section and second linkage section State refrigerant pipeline.

Flow mixing device is connected refrigerant pipeline by the first linkage section and the second linkage section, in order to which flow mixing device is installed to needs Carry out the pipeline position of fluid noise reduction；Specifically, at the pipeline position for needing to carry out fluid noise reduction, former pipeline is disconnected one section, Then this flow mixing device is installed on and disconnects position to substitute former pipeline section, it can realize installation of the flow mixing device in refrigerant pipeline, Structure is simple, easy to assembly；Preferably, the first linkage section and the second linkage section and refrigerant pipeline, which are all made of, is welded to connect fixation side Formula can be interpolation type welding or outside plug type welding.

In the above-mentioned technical solutions, it is preferable that first linkage section and second linkage section are cylindricality linkage section, The length of first linkage section and second linkage section is within the scope of 10mm~15mm.

The length of the first linkage section and the second linkage section is designed within the scope of 10mm~15mm, to ensure the first linkage section And second have enough insertion depths between linkage section and refrigerant pipeline, it is ensured that be welded to connect reliability.

In the above-mentioned technical solutions, it is preferable that intermediate cross of the flow mixing device with the expansion cavity sleeve along its length Section is plane of symmetry bilateral symmetry.

Entire flow mixing device is designed to bilateral symmetry, unnecessary differentiation direction when flow mixing device is installed in this way, it will be able to Ensure to freeze and heat and reach same mixed flow noise reduction effect, improves the installation convenience and applicability of flow mixing device.

In any of the above-described technical solution, it is preferable that the sum of the cross-sectional area in multiple mixed flow holes and the expansion The ratio between either end cross-sectional area in the both ends of section is all larger than equal to 2.

Design the sum of the cross-sectional area in multiple mixed flow holes and the ratio between the either end cross-sectional area in the both ends of expansion segment More than or equal to 2, the shock plane of disruption convection current of orifice plate is offset by the sum of the sectional area in multiple mixed flow holes by increasing fluid The influence of body flow resistance slows down so that refrigerant be made not will lead to refrigerant flowing velocity when passing through orifice plate, so guarantee refrigeration or Heating operations operate normally.

In any of the above-described technical solution, it is preferable that the thickness of the orifice plate is within the scope of 0.5mm~2mm；And/or it is every The aperture in the one mixed flow hole is more than or equal to 2mm.

The pipe thickness of refrigerant pipeline is about 1mm, preferably design orifice plate with a thickness of 1mm, both ensured the structure of orifice plate Intensity, and hole sheet thickness dimension is preferably matched with refrigerant pipeline pipe thickness size；Design the aperture in each mixed flow hole More than or equal to 2mm, to ensure that fluid passes through mixed flow hole；The aperture in each mixed flow hole is preferably designed in 2mm~4mm range It is interior.

The technical solution of the utility model second aspect provides a kind of household appliance, and the household appliance has refrigerant pipe Road, the household appliance include the flow mixing device as described in any of the above-described technical solution, and the flow mixing device is installed in the refrigerant pipe In road and it is fixedly connected between two pipeline sections of the refrigerant pipeline.

The household appliance that the utility model above-mentioned technical proposal provides, because it includes mixing described in any of the above-described technical solution Flow device, thus the beneficial effect with flow mixing device described in any of the above-described technical solution.

In the above-mentioned technical solutions, the household appliance is air conditioner or refrigerator.

The additional aspect and advantage of the utility model will become obviously in following description section, or practical new by this The practice of type is recognized.

Detailed description of the invention

The above-mentioned and/or additional aspect and advantage of the utility model from the description of the embodiment in conjunction with the following figures will Become obvious and be readily appreciated that, in which:

Fig. 1 is the schematic view of the front view of flow mixing device described in the utility model one embodiment；

Fig. 2 be in Fig. 1 A-A to schematic cross-sectional view；

Fig. 3 is the left view structural representation of flow mixing device shown in Fig. 1；

Fig. 4 is the decomposition texture schematic diagram of flow mixing device shown in Fig. 1；

Fig. 5 is the orifice plate layout architecture schematic diagram of flow mixing device described in the utility model one embodiment；

Fig. 6 is the orifice plate layout architecture schematic diagram of flow mixing device described in another embodiment of the utility model；

Fig. 7 is the orifice plate layout architecture schematic diagram of flow mixing device described in another embodiment of the utility model；

Fig. 8 is the schematic cross-sectional view of flow mixing device described in the utility model one embodiment；

Fig. 9 is the side structure schematic view of the orifice plate of flow mixing device described in the utility model one embodiment；

Figure 10 is the schematic view of the front view of the orifice plate of flow mixing device shown in Fig. 9.

Wherein, corresponding relationship of the Fig. 1 into Figure 10 between appended drawing reference and component names are as follows:

100 flow mixing devices, 1 expansion cavity sleeve, 11,12 cone expansion sections, 13 first linkage sections, 14 second linkage sections, 2 holes Plate, 21 mixed flow holes.

Specific embodiment

In order to be more clearly understood that the above objects, features, and advantages of the utility model, with reference to the accompanying drawing and have The utility model is further described in detail in body embodiment.It should be noted that in the absence of conflict, this Shen The feature in embodiment and embodiment please can be combined with each other.

Many details are explained in the following description in order to fully understand the utility model, still, this is practical It is novel to be implemented using other than the one described here mode, therefore, the protection scope of the utility model not by The limitation of following public specific embodiment.

1 to Figure 10 the flow mixing device and household appliance according to some embodiments of the utility model are described with reference to the accompanying drawings.

As shown in Figures 1 to 4, a kind of flow mixing device 100 provided according to some embodiments of the utility model, flow mixing device 100 It can be installed in refrigerant pipeline and be fixedly connected between two pipeline sections of refrigerant pipeline, flow mixing device 100 includes: expansion cavity sleeve 1 and orifice plate 2.

Specifically, expansion cavity sleeve 1 has the expansion segment gradually expanded outwardly from both ends to centre；Orifice plate 2 is placed in expansion Inside chamber sleeve 1, and it is fixed on the mid diameter maximum cross-section position of expansion segment, the plate face of orifice plate 2 is formed as being used for and fluid The shock plane of disruption of shock, and multiple mixed flow holes 21 that the plane of disruption is hit in perforation are offered on orifice plate 2.

It should be noted that when fluid flows through flow mixing device 100, on orifice plate 2 plate face of opposite fluid flow direction be for With the shock plane of disruption of fluid impact；When fluid opposite direction flowing, another lateral plates of orifice plate 2 be for fluid impact Hit the plane of disruption.

The utility model flow mixing device 100 provided by the above embodiment, can be installed in refrigerant pipeline and be fixedly connected on Between two pipeline sections of refrigerant pipeline, for reducing the flow noise of refrigerant in refrigerant pipeline, specifically, flow mixing device 100 includes expanding The orifice plate 2 opening chamber sleeve 1 and being placed in inside expansion cavity sleeve 1 utilizes orifice plate 2 by adding orifice plate 2 in the refrigerant process of circulation Upper formation hits the plane of disruption to the drag effect of fluid, so that the big breakup of drop is to sufficiently mixed with the bubble in fluid It closes, becomes the droplet of multiple dispersions；Along fluid flow direction, air pocket is behind multiple mixed flow holes 21 on orifice plate 2 Minute bubbles are broken into, are sufficiently mixed with fluid liquid, so that the gas and liquid two phases refrigerant in refrigerant pipeline is sufficiently mixed, are reached To the purpose for making refrigerant smooth flow, realizing, which improves or eliminate refrigerant, flows abnormal sound, the effect of noise, promotes user to product Experience sense by；Since orifice plate 2 is fixed on the mid diameter maximum cross-section position of expansion segment, no matter refrigerant is flowed along which direction in this way Dynamic, the expansion segment that fluid first passes through positioned at 2 side of orifice plate in the refrigerant process of circulation carries out water conservancy diversion, reduces process fluid flow In separation of flow phenomenon, reduce turbulent extent, thus be conducive to promoted refrigerant smooth flow, in this way install flow mixing device 100 when Unnecessary differentiation direction, that is, freezing and heating generates mixed flow noise reduction effect, improves the installation convenience of flow mixing device 100 and fits The property used.

Specifically, understanding from the angle of hydrodynamics, duct acoustics, when existing air conditioner works, due to gaseous coolant The bubble of formation causes liquid refrigerants to generate irregular turbulent motion in shattering process, and the uneven pressure difference in turbulent flow causes pipe Road Wall Vibration, to give off " hissing " coolant noise of sound；The utility model above-described embodiment, from pipe stream acoustic radiation principle It sets out, by installing flow mixing device 100 in refrigerant pipeline, refrigerant is divided using the orifice plate 2 being placed in inside expansion cavity sleeve 1 Stream is crushed, so that air-liquid refrigerant is sufficiently mixed, to keep the flowing of refrigerant more stable, is reduced or avoided because of liquid refrigerants turbulent flow In uneven pressure difference and generation the case where cause pipeline Wall Vibration, so as to improve even being eliminated refrigerant flowing abnormal sound, having made an uproar Sound；In addition, the setting of expansion cavity sleeve 1, can increase the global sections product of the runner at setting orifice plate 2, so that it is guaranteed that orifice plate 2 Setting do not influence the proper flow speed of refrigerant, so that it is guaranteed that the operation of the normal table of refrigeration or heating system.

Preferably, as shown in Figure 2, Figure 3 and Figure 4, orifice plate 2 is placed in inside expansion cavity sleeve 1, and to expansion cavity sleeve 1 Orifice plate 2 is fixed on to when processing by spinning necking down process the mid diameter maximum cross-section position of expansion segment.

The mid diameter that orifice plate 2 is fixed on expansion segment by spinning necking down process when expansion cavity sleeve 1 is processed is maximum Sectional position namely expansion cavity sleeve 1 use integral forming process, and directly consolidate orifice plate 2 when forming expansion cavity sleeve 1 Inside expansion cavity sleeve 1, so that the fixation of orifice plate 2, fixed form are simple.

In one embodiment of the utility model, as depicted in figs. 1 and 2, expansion segment include two cone expansion sections 11, 12, the big end of two cone expansion sections 11,12 is oppositely arranged and is connected, and two cone expansion sections 11,12 are to expand segment length The intermediate cross-section in degree direction is symmetrical set for the plane of symmetry.

Expansion segment includes two cone expansion sections 11,12 that big end is oppositely arranged, and orifice plate 2 is located at two cone expansion sections 11, between 12, no matter refrigerant is flowed along which direction in this way, and fluid is first passed through positioned at orifice plate 2 one in the refrigerant process of circulation The cone expansion section 11,12 of side carries out water conservancy diversion, reduces the separation of flow phenomenon in process fluid flow, reduces turbulent extent, Ye Jitong The structure design special to expansion cavity sleeve 1 is crossed, the stationarity of refrigerant flowing is promoted, elimination is promoted or improves refrigerant and flow abnormal sound Effect；Two cone expansion sections 11,12 are symmetrical set using the intermediate cross-section of expansion segment length direction as the plane of symmetry, this Sample installs unnecessary differentiation direction when flow mixing device 100, that is, freezing and heating generates same mixed flow noise reduction effect, improves mixed Flow the installation convenience and applicability of device 100.

Preferably, as shown in figure 8, the big end cross-sectional area of cone expansion section 11,12 and cone expansion section 11,12 it is small The ratio between cross-sectional area is held to be more than or equal to 8, i.e. the maximum gauge sectional area of A2/A1 >=8 namely expansion segment and the minimum of expansion segment The ratio between section of diameter product is more than or equal to 8, wherein the mid diameter maximum cross-section position of expansion segment corresponds to maximum gauge sectional area.

The ratio between big end cross-sectional area and the small end cross-sectional area for designing cone expansion section 11,12 are more than or equal to 8, with true The big end for protecting cone expansion section 11,12 has biggish cross-sectional area, on the one hand ensures the water conservancy diversion effect of cone expansion section 11,12 Fruit reduces turbulent extent to effectively reduce the separation of flow phenomenon in process fluid flow using cone expansion section 11,12, is promoted mixed Flow noise reduction effect；On the other hand the orifice plate 2 for being installed on cone expansion section 11,12 big ends can be made with larger diameter and larger section Area, so that it is guaranteed that the sum of the sectional area in multiple mixed flow holes 21 on orifice plate 2 is larger, and then ensure refrigerant by when orifice plate 2 not It will lead to refrigerant flowing velocity to slow down.

Preferably, as shown in figure 8, the side wall of cone expansion section 11,12 is small relative to the tilt angle of expansion segment central axes In being equal to 10 degree, i.e. α≤10 °.

The side wall for designing cone expansion section 11,12 is less than or equal to 10 degree relative to the tilt angle of expansion segment central axes, The tilt angle for designing the side wall of cone expansion section 11,12 is smaller, real to ensure the diversion effect of cone expansion section 11,12 The separation of flow phenomenon in process fluid flow now is effectively reduced using cone expansion section 11,12, reduces turbulent extent, promotes mixed flow drop The purpose for effect of making an uproar.

Further, as depicted in figs. 1 and 2, expansion cavity sleeve 1 has the first connection for being connected to expansion segment both ends Section 13 and the second linkage section 14, flow mixing device 100 are connected refrigerant pipeline by the first linkage section 13 and the second linkage section 14.

Flow mixing device 100 is connected refrigerant pipeline by the first linkage section 13 and the second linkage section 14, in order to by flow mixing device 100 It is installed to the pipeline position for needing to carry out fluid noise reduction；Specifically, at the pipeline position for needing to carry out fluid noise reduction, by former pipeline One section is disconnected, then this flow mixing device 100 is installed on and disconnects position to substitute former pipeline section, it can realizes flow mixing device 100 cold Installation in matchmaker's pipeline, structure is simple, easy to assembly；Preferably, the first linkage section 13 and the second linkage section 14 and refrigerant pipeline It is all made of welded connecting fixed form, can be interpolation type welding or outside plug type welding.

Preferably, as shown in figure 8, the first linkage section 13 and the second linkage section 14 are cylindricality linkage section, the first linkage section 13 and second linkage section 14 length within the scope of 10mm~15mm, i.e. 10mm≤L1≤15mm, 10mm≤L2≤15mm are excellent Selection of land, L1=L2.

The length of the first linkage section 13 and the second linkage section 14 is designed within the scope of 10mm~15mm, to ensure the first company Connecing has enough insertion depths between section 13 and the second linkage section 14 and refrigerant pipeline, it is ensured that be welded to connect reliability.

Preferably, as depicted in figs. 1 and 2, flow mixing device 100 is with the intermediate cross-section of expansion cavity sleeve 1 along its length Plane of symmetry bilateral symmetry.

Entire flow mixing device 100 is designed to bilateral symmetry, unnecessary differentiation direction when flow mixing device 100 is installed in this way, It ensures that refrigeration and heating reach same mixed flow noise reduction effect, improve the installation convenience of flow mixing device 100 and fits The property used.

Preferably, as shown in figs, the sum of the cross-sectional area in multiple mixed flow holes 21 in the both ends of expansion segment The ratio between either end cross-sectional area is all larger than equal to 2；Preferably, the cross-sectional area at the both ends of expansion segment is equal, i.e., (n*A3)/ A1 >=2, wherein n is the aperture number on orifice plate 2, and as shown in Figure 10, n=6, A3 are sectional area (the i.e. mixed flow hole 21 of aperture Sectional area).

Design the sum of the cross-sectional area in multiple mixed flow holes 21 and the either end cross-sectional area in the both ends of expansion segment it Than being more than or equal to 2, the shock plane of disruption of orifice plate 2 is offset by the sum of the sectional area in multiple mixed flow holes 21 by increasing fluid The influence of fluid flow resistance so that refrigerant be made to slow down by not will lead to refrigerant flowing velocity when orifice plate 2, and then guarantees system Cold or heating operations operate normally.

It should be noted that the number for opening up mixed flow hole 21 on orifice plate 2 can size according to practical orifice plate 2 and mixed flow hole The parameters such as 21 pore size are rationally designed, and the aperture pattern of orifice plate 2 can be three kinds of patterns as shown in Figures 5 to 7, It is of course also possible to be other patterns；Preferably, multiple mixed flow holes 21 dispersed placement in the plate face of orifice plate 2.

Preferably, as shown in figure 9, the thickness T of orifice plate 2 is within the scope of 0.5mm~2mm, i.e. 0.5mm≤T≤2mm；Into one Step ground, the pipe thickness of refrigerant pipeline is about 1mm, preferably design orifice plate 2 with a thickness of 1mm, i.e., preferably, T=1mm, both Ensure the structural strength of orifice plate 2, and 2 thickness of orifice plate is preferably matched with refrigerant pipeline pipe thickness size.

Preferably, as shown in Figure 10, the aperture D in each mixed flow hole 21 is more than or equal to 2mm, i.e. D >=2mm, to ensure fluid Pass through mixed flow hole 21；It is further preferred that 2mm≤D≤4mm.

Preferably, preferably 304 stainless steel materials of orifice plate 2, the preferred basis brass material of expansion cavity sleeve 1.

The embodiment of the utility model second aspect provides a kind of household appliance, and household appliance has refrigerant pipeline, family Electric equipment includes the flow mixing device 100 of any of the above-described embodiment, and flow mixing device 100 is installed in refrigerant pipeline and is fixedly connected on refrigerant Between two pipeline sections of pipeline.

The utility model household appliance provided by the above embodiment, because it includes the flow mixing device 100 of any of the above-described embodiment, The thus beneficial effect of the flow mixing device 100 with any of the above-described embodiment, details are not described herein.

Specifically, installation site of the flow mixing device 100 in household appliance can be two devices, throttle part, connecting pipe etc. Position；Fixed form of the flow mixing device 100 in household appliance can be the modes such as rolling, welding, nut fixation, all without departing from The design concept of the utility model.

In some embodiments of the utility model, the household appliance is air conditioner or refrigerator.

Certainly, the household appliance can also be other household appliances freezed using refrigerant or heated, such as heat Pump water heater etc. should be within the protection scope of the present utility model without departing from the design concept of the utility model.

In conclusion flow mixing device provided by the embodiment of the utility model, by designing the special structure of expansion cavity sleeve, The separation of flow phenomenon in process fluid flow is reduced, turbulent extent is reduced；Simultaneously by AND DEWATERING FOR ORIFICE STRUCTURE, fill gas and liquid two phases refrigerant Divide mixing, to reach the stable purpose of flowing, realizes the effect of improvement or elimination refrigerant flowing abnormal sound；Utilize spinning necking down process Orifice plate is fixed in expansion cavity sleeve, easy to assembly, fixation；Unnecessary area when flow mixing device is installed in refrigerant pipeline Divide direction, improves the installation convenience and applicability of flow mixing device.

In the description of the present invention, unless otherwise clearly defined and limited, term " connected ", " connection ", " Gu It is fixed " etc. shall be understood in a broad sense, for example, " connection " may be a fixed connection, may be a detachable connection, or integrally connect It connects, or electrical connection；It can be directly connected, it can also be indirectly connected through an intermediary.For the ordinary skill people of this field For member, the concrete meaning of above-mentioned term in the present invention can be understood as the case may be.

In the description of this specification, the description of term " one embodiment ", " some embodiments ", " specific embodiment " etc. Mean that particular features, structures, materials, or characteristics described in conjunction with this embodiment or example are contained at least the one of the utility model In a embodiment or example.In the present specification, schematic expression of the above terms are not necessarily referring to identical embodiment Or example.Moreover, the particular features, structures, materials, or characteristics of description can be in any one or more embodiment or examples In can be combined in any suitable manner.

The above is only the preferred embodiments of the utility model, are not intended to limit the utility model, for this field Technical staff for, various modifications and changes may be made to the present invention.Within the spirit and principle of the utility model, Any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.

Claims (10)

1. a kind of flow mixing device, which is characterized in that the flow mixing device can be installed in refrigerant pipeline and be fixedly connected on described cold Between two pipeline sections of matchmaker's pipeline, the flow mixing device includes:

Expansion cavity sleeve has the expansion segment gradually expanded outwardly from both ends to centre；With

Orifice plate is placed in the expansion cavity sleeve inner, and is fixed on the mid diameter maximum cross-section position of the expansion segment, described The plate face of orifice plate is formed as the shock plane of disruption with fluid impact, and offers described hit of perforation on the orifice plate and be crushed Multiple mixed flow holes in face.

2. flow mixing device according to claim 1, which is characterized in that

The orifice plate is placed in the expansion cavity sleeve inner, and passes through spinning necking down process when processing to the expansion cavity sleeve The orifice plate is fixed on to the mid diameter maximum cross-section position of the expansion segment.

3. flow mixing device according to claim 1, which is characterized in that

The expansion segment includes two cone expansion sections, and the big end of two cone expansion sections is oppositely arranged and is connected, and Two cone expansion sections are symmetrical set using the intermediate cross-section of the expansion segment length direction as the plane of symmetry.

4. flow mixing device according to claim 3, which is characterized in that

The ratio between small end cross-sectional area of the big end cross-sectional area of the cone expansion section and the cone expansion section is greater than etc. In 8；And/or

The side wall of the cone expansion section is less than or equal to 10 degree relative to the tilt angle of the expansion segment central axes.

5. flow mixing device according to any one of claim 1 to 4, which is characterized in that

The expansion cavity sleeve has the first linkage section and the second linkage section for being connected to the expansion segment both ends, described mixed It flows device and the refrigerant pipeline is connected by first linkage section and second linkage section.

6. flow mixing device according to claim 5, which is characterized in that

First linkage section and second linkage section are cylindricality linkage section, first linkage section and second connection The length of section is within the scope of 10mm~15mm.

7. flow mixing device according to claim 5, which is characterized in that

The flow mixing device is using expansion cavity sleeve intermediate cross-section along its length as plane of symmetry bilateral symmetry.

8. flow mixing device according to any one of claim 1 to 4, which is characterized in that

The sum of the cross-sectional area in multiple mixed flow holes and the ratio between the either end cross-sectional area in the both ends of the expansion segment It is all larger than and is equal to 2.

9. flow mixing device according to any one of claim 1 to 4, which is characterized in that

The thickness of the orifice plate is within the scope of 0.5mm~2mm；And/or

The aperture in each mixed flow hole is more than or equal to 2mm.

10. a kind of household appliance, the household appliance has refrigerant pipeline, which is characterized in that including in such as claim 1 to 9 Described in any item flow mixing devices, the flow mixing device are installed in the refrigerant pipeline and are fixedly connected on the two of the refrigerant pipeline Between pipeline section.