CN117006290A - Mute throttle valve and throttle valve assembly - Google Patents
Mute throttle valve and throttle valve assembly Download PDFInfo
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- CN117006290A CN117006290A CN202311033601.8A CN202311033601A CN117006290A CN 117006290 A CN117006290 A CN 117006290A CN 202311033601 A CN202311033601 A CN 202311033601A CN 117006290 A CN117006290 A CN 117006290A
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- mute
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- 230000007704 transition Effects 0.000 claims description 12
- 238000009434 installation Methods 0.000 claims description 11
- 239000007788 liquid Substances 0.000 claims description 4
- 238000005057 refrigeration Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 10
- 230000008569 process Effects 0.000 description 9
- 239000003507 refrigerant Substances 0.000 description 9
- 238000010586 diagram Methods 0.000 description 8
- 230000002457 bidirectional effect Effects 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- 230000001788 irregular Effects 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000001737 promoting effect Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/04—Construction of housing; Use of materials therefor of sliding valves
- F16K27/041—Construction of housing; Use of materials therefor of sliding valves cylindrical slide valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
- F16K3/30—Details
- F16K3/314—Forms or constructions of slides; Attachment of the slide to the spindle
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K47/00—Means in valves for absorbing fluid energy
- F16K47/02—Means in valves for absorbing fluid energy for preventing water-hammer or noise
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Valves (AREA)
- Lift Valve (AREA)
Abstract
The application relates to the technical field of throttle valves for air conditioner refrigeration, and particularly discloses a mute throttle valve and a throttle valve assembly. The mute throttle valve comprises a valve seat, a valve core and a check ring, wherein the valve core comprises a large-diameter section and a small-diameter section, and a connection section is arranged between the large-diameter section and the small-diameter section; the check ring is provided with a guide hole matched with the small-diameter section, one end of the check ring facing the valve core is provided with an inner taper hole, and when the valve core is positioned at the limit position of one side of the valve core cavity away from the valve hole, the check ring and the valve core form line contact. The mute throttle valve with the structure effectively reduces the impact noise generated by the axial float, radial rotation and axial offset of the valve core, and the valve core has lighter weight, shorter valve seat length and lower cost.
Description
The application relates to a mute throttle valve and a throttle valve assembly, which are divided into patent application number 201910501049.8 and application date 2019, 6 and 11.
Technical Field
The application relates to the technical field of throttle valves for air conditioner refrigeration, in particular to a mute throttle valve and a throttle valve assembly.
Background
After the air conditioner is shut down, the refrigerant flows from the high-pressure part to the low-pressure part due to pressure change. When the refrigerant flows through the throttle valve, the throttle valve is in an unthrottled state, the valve core is suspended in the valve seat, and in the pressure balancing process, the valve core can generate axial movement in the valve seat.
In the prior art, a valve core is limited in a valve core cavity of a valve seat by a port of the valve seat in a necking mode, so that the valve core is prevented from being separated from the valve seat. According to the throttle valve in the structural form, as the end part of the valve core is in irregular contact with the necking part of the valve seat, irregular impact can occur when the valve core axially moves to the irregular contact position, meanwhile, radial rotation can also occur, impact can occur with the inner cavity of the valve seat when the valve core rotates, and the impact in the two forms can generate larger noise. In addition, because a certain gap is formed between the outer wall of the valve core and the inner cavity of the valve seat, the valve core and the valve seat are not always coaxial in the valve core moving process, and noise is generated between the valve core and the inner cavity of the valve seat due to collision due to the inclination of the valve core relative to the axis.
Except for the variable frequency air conditioner in the prior art after the air conditioner is shut down, two one-way throttle valve assemblies or one two-way throttle valve assembly are used at the same time, and when one-way throttle valve is in a throttle state, the other one-way throttle valve is conducted. When the low-frequency operation is performed, the pressure of the refrigerant in the system is low, when the pressure of the refrigerant is basically equal to the weight of the valve core, the valve core in the communicated one-way throttle valve can be suspended at any position in the valve seat, and in the pressure change and balance process, the valve core can generate axial movement, rotation and axial inclination, and the three kinds of noise can be generated.
The variable frequency air conditioner is characterized in that the variable frequency air conditioner only uses one-way throttle valve assembly, when the air conditioner is in a refrigerating state, the throttle valve assembly is in a conducting state (non-throttling), and during low-frequency operation, as the pressure of a refrigerant in the system is lower, when the pressure of the refrigerant is basically equal to the weight of a valve core, the valve core in the conducting throttle valve assembly can be suspended at any position in a valve seat, and during the pressure change and balance process, the valve core can generate axial movement, rotation and axis inclination, and the three kinds of noise can be generated.
With the technical development of mute air conditioner, the noise of the air conditioner needs to be further improved and lifted. The present application is directed to an improvement in the structure of a throttle valve to further reduce noise.
Disclosure of Invention
The application aims to solve the technical problem that the throttle valve in the air conditioner field has larger noise in the prior art.
In order to solve the technical problems, the technical scheme provided by the application is as follows: a mute throttle valve comprising at least:
the valve seat is internally provided with a valve hole and a valve core cavity which are communicated with each other, the inner diameter of the valve core cavity is larger than that of the valve hole, a transition conical surface is arranged between the valve core cavity and the valve hole, and at least one liquid flow channel which radially penetrates through the cavity wall of the valve core cavity is arranged at the position, close to the transition conical surface, of the cavity wall of the valve core cavity along the circumferential direction;
the valve core is movably arranged in a valve core cavity of the valve seat, and one end of the valve core facing the valve hole is provided with a cambered surface for contacting and sealing with the transitional conical surface in a throttling state;
the valve core comprises a valve core cavity, and is characterized by further comprising a check ring, wherein the check ring is fixedly arranged at one end of the valve core cavity, far away from the valve hole, and is provided with an inner conical hole close to one side of the valve core cavity and an axial guide hole far away from one side of the valve core cavity, the inner conical hole is communicated with the guide hole, and the aperture of the maximum aperture of the inner conical hole is not smaller than the inner diameter of the valve core cavity;
the valve core comprises a large-diameter section close to one side of the valve hole and a small-diameter section close to one side of the check ring, a connecting section is arranged between the large-diameter section and the small-diameter section, the outer diameter of the small-diameter section is matched with the inner diameter of the guide hole, and the gap between the small-diameter section and the guide hole is larger than the gap between the large-diameter section and the valve core cavity; when the valve core moves to the limit position far away from one side of the valve hole in the valve core cavity, the position where the large-diameter section is connected with the connecting section is in line contact with the inner conical surface of the inner conical hole.
In a preferred embodiment, the engagement section is provided with an outer conical surface having a cone angle β which is larger than the cone angle α of the inner conical hole.
In a preferred embodiment, the connection position of the outer conical surface and the large-diameter section is provided with a circular arc surface.
In a preferred embodiment, the engagement section is provided with a step surface, and a rounded arc surface is arranged at the position where the maximum diameter of the step surface is connected with the large-diameter section.
In a preferred embodiment, a check ring installation cavity is arranged at one end, far away from the valve hole, of the valve core cavity, a limiting step is arranged at the cavity bottom of the check ring installation cavity, and a limiting surface matched with the limiting step is arranged at one end, facing the valve core, of the check ring.
The mute throttle valve based on the structure has the following technical effects compared with the prior art:
(1) In the axial shifting process of the valve core, when the valve core shifts to the limit position of the non-throttling state, as the connecting position of the large-diameter section and the connecting section is in line contact with the inner conical surface of the inner conical hole, compared with the prior art, the valve core is in regular line contact, the impact surface is positioned on the inner conical surface and is not directly impacted in the front, the impact force can generate axial and radial component force, namely the impact force is more dispersed, and the noise generated by impact is relatively smaller;
(2) The diameter of the outer wall of the valve core in the prior art is basically consistent, the valve core in the embodiment comprises a large-diameter section and a small-diameter section, the small-diameter section of the valve core is firstly arranged in a guide hole of a retainer ring in the process of converting the valve core from a throttling state to a non-throttling state, and in the process, the two matching relations are mutually restricted due to the fact that the small-diameter section is matched with the guide hole and the large-diameter section is matched with a valve core cavity, so that the impact amplitude of the valve core on the inner wall of the valve core cavity due to relative axial displacement is reduced, and impact noise generated due to the displacement of the valve core is reduced;
(3) Because of the mutual restriction of the two matching relations of the small diameter section and the guide hole and the large diameter section and the valve core cavity, the problem of the rotation of the valve core is also improved in the process of the valve core moving, thereby reducing the noise generated by the impact of the rotation of the valve core and the valve body;
(4) In this embodiment, the impact between the outer wall of the valve core and the inner wall of the valve core cavity mainly occurs between the large diameter section and the valve core cavity, compared with the prior art, the area of contact between the valve core and the valve core cavity is obviously reduced, and the impact noise is smaller under the conditions of reduced contact area and reduced contact length;
(5) In the prior art, the diameter of the outer wall of the valve core is basically consistent, the valve core cannot protrude from the valve seat, in the embodiment, the valve core comprises a large-diameter section and a small-diameter section, the free end of the small-diameter section can extend out of the retainer ring and even the valve seat in an unthrottled state, so that the length of the valve seat can be smaller than that of the valve seat in the prior art under the same valve core stroke, and the cost of the valve seat is necessarily reduced under the condition that the length of the valve seat is shortened;
a mute throttle valve of another embodiment includes at least:
the valve seat is internally provided with a valve hole and a valve core cavity which are communicated with each other, the inner diameter of the valve core cavity is larger than that of the valve hole, a transition conical surface is arranged between the valve core cavity and the valve hole, and at least one liquid flow channel which radially penetrates through the cavity wall of the valve core cavity is arranged at the position, close to the transition conical surface, of the cavity wall of the valve core cavity along the circumferential direction;
the valve core is movably arranged in a valve core cavity of the valve seat, and one end of the valve core facing the valve hole is provided with a cambered surface for contacting and sealing with the transitional conical surface in a throttling state;
the valve core comprises a valve core cavity, and is characterized by further comprising a check ring, wherein the check ring is fixedly arranged at one end of the valve core cavity, far away from the valve hole, and is provided with an inner conical hole close to one side of the valve core cavity and an axial guide hole far away from one side of the valve core cavity, the inner conical hole is communicated with the guide hole, and the aperture of the maximum aperture of the inner conical hole is not smaller than the inner diameter of the valve core cavity;
the valve core comprises a large-diameter section close to one side of the valve hole and a small-diameter section close to one side of the check ring, a connecting section is arranged between the large-diameter section and the small-diameter section, an outer conical surface is arranged on the connecting section, and the conical angle beta of the outer conical surface is smaller than the conical angle alpha of the inner conical hole; the outer diameter of the small-diameter section is matched with the inner diameter of the guide hole, and the gap between the small-diameter section and the guide hole is larger than the gap between the large-diameter section and the valve core cavity; when the valve core moves to the limit position far away from one side of the valve hole in the valve core cavity, the connecting position of the inner conical hole and the guide hole is in line contact with the outer conical surface of the connecting section.
In a preferred embodiment, an arc-shaped transition surface is arranged at the connection position of the inner conical hole and the guide hole.
The mute throttle valve of this embodiment is different from the mute throttle valve of the foregoing structure in that: the cone angle beta of the outer cone surface of the connecting section is smaller than the cone angle alpha of the inner cone hole; when the valve core moves to the limit position far away from one side of the valve hole in the valve core cavity, the connecting position of the inner conical hole and the guide hole is in line contact with the outer conical surface of the connecting section.
This distinction results in the impact position being farther from the valve hole side and the impact bearing surface being changed (in the foregoing structure, the impact bearing surface is the inner conical surface of the inner conical hole, in this embodiment, the impact bearing surface is the outer conical surface of the engagement section), but, since the impact surface is also the conical surface, there is a force of dispersing the impact force, and at the same time, the impact is a regular closed line contact, and its mute technical effect is equivalent to that in the foregoing embodiment.
Drawings
Fig. 1 is a schematic structural diagram of a mute throttle valve in an unthrottled state according to a first embodiment;
fig. 2 is a schematic structural view of a mute throttle valve according to the first embodiment in a throttle state;
fig. 3 is a schematic diagram of a mute throttle valve in an exploded state according to the first embodiment;
fig. 4 is a schematic diagram of a connection state of a spool and a retainer ring of the mute throttle valve in the state shown in fig. 1 according to the first embodiment;
fig. 5 is a schematic structural diagram of a retainer ring in a mute throttle valve according to a second embodiment;
FIG. 6 is a schematic structural view of a one-way throttle valve assembly according to the third embodiment;
fig. 7 is a schematic diagram of a connection state of a valve core and a retainer ring in a throttle state in a mute throttle valve according to a fourth embodiment;
fig. 8 is a schematic structural diagram of a valve element in a mute throttle valve according to a fifth embodiment;
fig. 9 is a schematic diagram of a connection state of a valve core and a retainer ring in a throttle state in a mute throttle valve according to a sixth embodiment;
FIG. 10 is a schematic diagram of an explosion state of the spool and retainer ring of FIG. 9;
fig. 11 is a schematic structural view of a bi-directional throttle valve assembly of a seventh embodiment.
Detailed Description
The present application will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present application more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the application.
In the description of the present application, it should be understood that the directions or positional relationships indicated by the terms "upper", "lower", "front", "rear", "inner", "outer", etc., are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present application.
In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, integrally connected, or detachably connected; may be a communication between the interiors of two elements; may be directly or indirectly through an intermediate medium, and the specific meaning of the terms in the present application will be understood by those skilled in the art in specific cases.
Example 1
A throttle valve of the present embodiment, as shown in fig. 1-3, includes a valve seat 10, a valve element 20, and a retainer ring 30. Wherein, the valve seat 10 is provided with a valve hole 12 and a spool cavity 11 for installing the spool 20, and the spool 20 can axially move in the spool cavity 11.
Wherein, the internal diameter of the valve core cavity 11 is larger than the internal diameter of the valve hole 12, and a transitional conical surface 13 is arranged between the valve core cavity 11 and the valve hole 12.
In this embodiment, two fluid passages 14 radially penetrating the cavity wall of the spool chamber 11 are provided in the circumferential direction at positions of the cavity wall of the spool chamber 11 near the transition taper surface 13. Of course, the number of the flow channels 14 may be one or more than two, and preferably two.
In this embodiment, a check ring mounting cavity 15 is disposed at one end of the spool cavity 11 away from the valve hole 12, and a limiting step 16 is disposed at the bottom of the check ring mounting cavity 15. Wherein the retainer ring 30 is installed in the retainer ring installation cavity 15, and one end of the retainer ring 30 facing the valve core 20 is provided with a limiting surface 33 adapted to the limiting step 16. When the check ring is installed, after the limit surface 33 is abutted against the limit step 16, the check ring and the valve seat can be fixed by welding; the port of the valve seat can also be subjected to necking processing in the mode shown in fig. 1-2, and the retainer ring is riveted in the retainer ring mounting cavity 15.
The valve core 20 of the present embodiment, as shown in fig. 1 to 3, includes a large diameter section 21 on the side close to the valve hole and a small diameter section 22 on the side far from the valve hole, and a joint section is provided between the large diameter section and the small diameter section, and in the present embodiment, the joint section is provided with an outer conical surface 23. The end of the valve core 20 facing the valve bore 12 is provided with a cambered surface 25 for sealing in contact with the transitional conical surface 13 in the throttled state, which cambered surface is preferably spherical. Preferably, an annular avoidance groove 24 is arranged on the outer wall of the large-diameter section of the valve core 20, which is close to one end of the valve hole, so as to ensure that the cambered surface 25 and the transitional conical surface 13 can be completely contacted and sealed. In the state that the cambered surface 25 and the transitional conical surface 13 can be completely contacted and sealed, namely in the throttling state shown in fig. 2, the valve core is tightly attached to the valve seat due to the pressure of the refrigerant, so that the valve core does not shake or generate noise.
In this embodiment, the retainer ring 30 is provided with a guide hole 31 adapted to the small diameter section 22, and an inner taper hole 32 is provided at an end facing the valve core 20.
In this embodiment, the gap between the small diameter section and the guide hole is larger than the gap between the large diameter section and the spool chamber, and at the same time, the aperture at the maximum aperture of the inner taper hole is not smaller than the inner diameter of the spool chamber. The purpose that sets up like this is, in the case removal in-process, guarantees that minor diameter section can be smooth get into the guiding hole, simultaneously, guarantees that the impact position of case and retaining ring is located inside the interior taper hole at least.
Wherein the cone angle beta of the outer cone 23 is smaller than the cone angle alpha of the inner cone. As shown in fig. 4, in the mute throttle valve of the structure, in the extreme position of the non-throttle state, the small diameter section completely enters the guide hole, so that the position where the inner taper hole is connected with the guide hole is in line contact with the outer taper surface of the engagement section.
According to the mute throttle valve with the structure, when the valve core is positioned at the limit position of one side of the valve core cavity away from the valve hole, the free end of the small-diameter section can extend out of the guide hole of the check ring and even the valve seat, so that the length of the valve seat can be reduced under the condition that the valve core stroke is fixed, and the use requirement is met, thereby saving the production cost.
In this embodiment, the length of the small diameter section of the spool is typically 1/10 to 1/2 of the total spool length. In this embodiment, based on the angle change of the taper angle β (the outer taper surface becomes a plane perpendicular to the axis line at the limit angle), the length of the small diameter section of the valve element is selected to be a suitable length within the above range, and the cost, life and performance thereof are all within a more balanced range.
In addition, because the valve core comprises a large-diameter section and a small-diameter section, the weight of the valve core is lightened, the gravity center of the valve core is shifted to one end of the large-diameter section, and the shift of the gravity center can reduce the swing of the valve core, so that the valve core has a certain contribution to noise reduction of the throttle valve.
The retainer ring in the embodiment is usually made of stainless steel or copper, is made of conventional materials, and is beneficial to cost reduction and mass production.
Example two
As shown in fig. 5, the mute throttle valve of the present embodiment is different from the first embodiment in that an arc-shaped transition surface 34 is provided at a position where the inner tapered hole of the retainer ring is connected to the guide hole. The aim at that sets up like this, when the outer conical surface striking on retaining ring and the case, the cambered surface that the arc transitional surface is located is less to the damage of outer conical surface, is favorable to promoting the life-span of silence choke valve.
Example III
As shown in fig. 6, a one-way throttle valve assembly of the present embodiment includes a valve tube 40, a valve seat installation cavity 41 is provided in the valve tube 40, a mute throttle valve of the first embodiment is provided in the valve seat installation cavity 41, and filter screens 42 are provided at both ends of the throttle valve in the valve tube of the present embodiment.
Preferably, the filter screen 42 in this embodiment is made of stainless steel, and has a mesh size of 50 to 150 mesh.
It should be noted that, the embodiment is a specific application occasion of the mute throttle valve of the first embodiment, the throttle valve assembly of the embodiment can be directly applied to an air conditioner, and both ends of the throttle valve assembly are connected with a refrigerant pipeline of the air conditioner. The throttle valve assembly with the structure also has the mute technical advantage of the mute throttle valve in the first embodiment, so that the mute effect of the air conditioner applying the throttle valve assembly is better.
Example IV
As shown in fig. 7, the main difference between the mute throttle valve of the present embodiment and the first embodiment is that the taper angle β of the outer taper surface 23 is larger than the taper angle α of the inner taper hole.
In this state, when the valve element moves to the limit position of the non-throttling state, the position where the large diameter section is connected with the engagement section and the inner conical surface of the inner conical hole form line contact. In this state, the inner cone disperses the impact force formed at the position where the large diameter section is connected with the engagement section, so as to reduce the impact force and the impact noise.
Example five
As shown in fig. 8, the mute throttle valve of the present embodiment is different from the fourth embodiment in that a rounded arc surface 27 is provided at a position where the outer conical surface is connected with the large diameter section. After the setting, when the inner conical surface of case and retaining ring is impacted, the damage of fillet cambered surface to the inner conical surface is littleer, is favorable to promoting the life-span of silence choke valve.
Example six
In this embodiment, as shown in fig. 9 to 10, the valve body and the retainer ring have the same structure as those of the fifth embodiment, except that the valve core has a structure different from that of the fifth embodiment. In this embodiment, the engagement section of the valve core is set as a step surface 23', and a rounded arc surface 27 is provided at the position where the maximum diameter of the step surface is connected to the large diameter section.
As shown in fig. 9, in the mute throttle valve of the present embodiment, in the extreme position of the non-throttle state, the rounded arc surface 27 makes line contact with the inner conical surface of the retainer ring.
It should be noted that, the mute throttle valves of the second, fourth, fifth and sixth embodiments can be applied to the one-way throttle valve assembly of the third embodiment.
Example seven
As shown in fig. 11, a bidirectional throttle valve assembly of this embodiment includes a valve tube 40, a valve seat installation cavity 41 is provided in the valve tube 40, and a mute throttle valve of the first embodiment is installed in the valve seat installation cavity 41, and the installation directions of the mute throttle valves are opposite.
In this embodiment, the filter screen 42 is disposed on the side of the mute throttle in the valve tube near the end of the valve tube. Preferably, the filter screen 42 in this embodiment is made of stainless steel, and has a mesh size of 50 to 150 mesh.
It should be noted that, the embodiment is a specific application occasion of the mute throttle valve in the first embodiment, the bidirectional throttle valve assembly in the embodiment can be directly applied to a variable frequency air conditioner, and both ends of the bidirectional throttle valve assembly are connected with a refrigerant pipeline of the air conditioner. The bidirectional throttle valve assembly with the structure always has one mute throttle valve in a throttle state and the other mute throttle valve in a conducting state in the use process. And then the mute throttle valve in the on state has the same mute effect as the mute throttle valve in the first embodiment, so that the mute effect of the air conditioner applying the bidirectional throttle valve assembly is better.
In addition, the mute throttle valve used in the bidirectional throttle valve assembly of the present embodiment may be any mute throttle valve of the second, fourth, fifth and sixth embodiments.
In summary, the foregoing description is only of the preferred embodiments of the application, and is not intended to limit the application to the particular embodiments disclosed, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the application.
Claims (10)
1. A mute throttle valve comprising at least:
the valve seat (10) is internally provided with a valve hole (12) and a valve core cavity (11) which are communicated with each other, the inner diameter of the valve core cavity is larger than that of the valve hole, a transition conical surface (13) is arranged between the valve core cavity and the valve hole, and at least one liquid flow channel (14) which radially penetrates through the cavity wall of the valve core cavity is arranged at the position, close to the transition conical surface, of the cavity wall of the valve core cavity along the circumferential direction; the valve core (20) is movably arranged in a valve core cavity of the valve seat; the valve is characterized by further comprising a check ring (30), wherein the check ring is fixedly arranged at one end of the valve core cavity far away from the valve hole, the check ring is provided with an inner conical hole (32) close to one side of the valve core cavity and an axial guide hole (31) far away from one side of the valve core cavity, and the inner conical hole is communicated with the guide hole; the valve core comprises a large-diameter section (21) close to one side of the valve hole and a small-diameter section (22) close to one side of the check ring, a connecting section is arranged between the large-diameter section and the small-diameter section, and the outer diameter of the small-diameter section is matched with the inner diameter of the guide hole; when the valve core moves to the limit position far away from one side of the valve hole in the valve core cavity, the position where the large-diameter section is connected with the connecting section is in line contact with the inner conical surface of the inner conical hole.
2. A mute throttle as claimed in claim 1, characterised in that the engagement section is provided with an outer conical surface (23) having a cone angle β greater than the cone angle α of the inner conical bore.
3. A mute throttle valve as claimed in claim 2, characterised in that the location of the connection of the outer conical surface with the large diameter section is provided with a rounded cambered surface (27).
4. A mute throttle valve as claimed in claim 1, characterised in that the engagement section is provided with a stepped surface (23') and the position of the largest diameter of the stepped surface where it joins the large diameter section is provided with a rounded arc surface (27).
5. The mute throttle valve according to claim 1, characterized in that the end of the spool cavity far away from the valve hole is provided with a retainer mounting cavity (15), the cavity bottom of the retainer mounting cavity is provided with a limit step (16), and the end of the retainer facing the spool is provided with a limit surface (33) matched with the limit step.
6. A mute throttle valve comprising at least:
the valve seat (10) is internally provided with a valve hole (12) and a valve core cavity (11) which are communicated with each other, the inner diameter of the valve core cavity is larger than that of the valve hole, a transition conical surface (13) is arranged between the valve core cavity and the valve hole, and at least one liquid flow channel (14) which radially penetrates through the cavity wall of the valve core cavity is arranged at the position, close to the transition conical surface, of the cavity wall of the valve core cavity along the circumferential direction; the valve core (20) is movably arranged in a valve core cavity of the valve seat; the valve is characterized by further comprising a check ring (30), wherein the check ring is fixedly arranged at one end of the valve core cavity far away from the valve hole, the check ring is provided with an inner conical hole (32) close to one side of the valve core cavity and an axial guide hole (31) far away from one side of the valve core cavity, and the inner conical hole is communicated with the guide hole; the valve core comprises a large-diameter section (21) close to one side of the valve hole and a small-diameter section (22) close to one side of the check ring, a connecting section is arranged between the large-diameter section and the small-diameter section, an outer conical surface (23) is arranged on the connecting section, and the cone angle beta of the outer conical surface is smaller than the cone angle alpha of the inner conical hole; the outer diameter of the small-diameter section is matched with the inner diameter of the guide hole; when the valve core moves to the limit position far away from one side of the valve hole in the valve core cavity, the connecting position of the inner conical hole and the guide hole is in line contact with the outer conical surface of the connecting section.
7. The mute throttle valve as claimed in claim 6, characterized in that the connection of the inner cone opening with the pilot opening is provided with an arcuate transition surface (34).
8. The mute throttle as claimed in any one of claims 1 to 7, wherein the length of the small diameter section is 1/10 to 1/2 of the total length of the spool.
9. A one-way throttle valve assembly, characterized by comprising at least a valve tube (40), wherein a valve seat mounting cavity (41) is arranged in the valve tube, a mute throttle valve according to any one of claims 1-8 is arranged in the valve seat mounting cavity, and filter screens are arranged at two ends of the mute throttle valve in the valve tube.
10. A two-way throttle valve assembly, characterized by at least comprising a valve pipe (40), wherein a valve seat installation cavity (41) is arranged in the valve pipe, two mute throttle valves according to any one of claims 1-8 are installed in the valve seat installation cavity, the installation directions of the two mute throttle valves are opposite, and a filter screen is arranged in one side, close to the end part of the valve pipe, of the mute throttle valve in the valve pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311033601.8A CN117006290A (en) | 2019-06-11 | 2019-06-11 | Mute throttle valve and throttle valve assembly |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910501049.8A CN110454602A (en) | 2019-06-11 | 2019-06-11 | A kind of mute throttle valve and throttle valve component |
| CN202311033601.8A CN117006290A (en) | 2019-06-11 | 2019-06-11 | Mute throttle valve and throttle valve assembly |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910501049.8A Division CN110454602A (en) | 2019-06-11 | 2019-06-11 | A kind of mute throttle valve and throttle valve component |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117006290A true CN117006290A (en) | 2023-11-07 |
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Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311033601.8A Pending CN117006290A (en) | 2019-06-11 | 2019-06-11 | Mute throttle valve and throttle valve assembly |
| CN201910501049.8A Pending CN110454602A (en) | 2019-06-11 | 2019-06-11 | A kind of mute throttle valve and throttle valve component |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910501049.8A Pending CN110454602A (en) | 2019-06-11 | 2019-06-11 | A kind of mute throttle valve and throttle valve component |
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| Country | Link |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113685551B (en) * | 2020-05-18 | 2023-12-15 | 盾安环境技术有限公司 | Throttle valve |
| CN114439800A (en) * | 2022-01-13 | 2022-05-06 | 涌镇液压机械（上海）有限公司 | Sliding cone shuttle valve restrictor |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55163378A (en) * | 1979-06-01 | 1980-12-19 | Nippon Denso Co Ltd | Expansion valve for coolant |
| CN102538316B (en) * | 2011-12-04 | 2014-07-09 | 浙江三花汽车零部件有限公司 | Thermal expansion valve |
| CN203036923U (en) * | 2013-01-23 | 2013-07-03 | 新昌县丰亿电器有限公司 | Bidirectional noise-reduction throttle valve |
| CN203757088U (en) * | 2014-01-17 | 2014-08-06 | 浙江振兴石化机械有限公司 | Pressure stabilizing check valve |
| CN106838362B (en) * | 2017-02-09 | 2019-06-18 | 浙江大学 | It is a kind of to fall structure for inserting the balance that valve core hydraulic power is eliminated |
| CN108426069A (en) * | 2017-02-11 | 2018-08-21 | 何巨堂 | With the erosion material depressurizing system and equipment of the movable throttling element composition of at least two |
| JP2019044880A (en) * | 2017-09-04 | 2019-03-22 | 株式会社鷺宮製作所 | Motor valve and refrigeration cycle system |
| CN108506565A (en) * | 2018-05-07 | 2018-09-07 | 王彬丞 | A kind of throttle valve component |
| CN109612167A (en) * | 2018-12-05 | 2019-04-12 | 新昌县华亿机械有限公司 | A kind of mute throttle valve of shake-proof type |
| CN210318713U (en) * | 2019-06-11 | 2020-04-14 | 新昌县丰亿电器有限公司 | Mute throttle valve and throttle valve assembly |
-
2019
- 2019-06-11 CN CN202311033601.8A patent/CN117006290A/en active Pending
- 2019-06-11 CN CN201910501049.8A patent/CN110454602A/en active Pending
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| CN110454602A (en) | 2019-11-15 |
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