CN114183538B - Multi-section decompression single-seat regulating valve adopting throttling guide sleeve - Google Patents
Multi-section decompression single-seat regulating valve adopting throttling guide sleeve Download PDFInfo
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- CN114183538B CN114183538B CN202111515670.3A CN202111515670A CN114183538B CN 114183538 B CN114183538 B CN 114183538B CN 202111515670 A CN202111515670 A CN 202111515670A CN 114183538 B CN114183538 B CN 114183538B
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- guide sleeve
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- shaft section
- throttling
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- 230000001105 regulatory effect Effects 0.000 title claims abstract description 72
- 230000006837 decompression Effects 0.000 title claims abstract description 17
- 210000004907 gland Anatomy 0.000 claims abstract description 38
- 230000009467 reduction Effects 0.000 abstract description 12
- 239000012530 fluid Substances 0.000 abstract description 2
- 230000003116 impacting effect Effects 0.000 abstract 1
- 230000006872 improvement Effects 0.000 description 10
- 238000000034 method Methods 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 230000002411 adverse Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000000126 substance Substances 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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
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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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
-
- 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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/36—Valve members
-
- 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
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
- F16K1/34—Cutting-off parts, e.g. valve members, seats
- F16K1/42—Valve seats
-
- 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
- F16K47/04—Means in valves for absorbing fluid energy for decreasing pressure or noise level, the throttle being incorporated in the closure member
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Valves (AREA)
Abstract
The application relates to a multi-section decompression single-seat regulating valve adopting a throttling guide sleeve, which comprises a valve body, wherein a guide sleeve gland and a valve seat which are mutually sealed are sequentially arranged in the valve body from top to bottom; the lower part of the valve body is provided with a medium inflow channel and a medium outflow channel, the medium inflow channel is communicated with the valve seat, and the medium outflow channel is communicated with the upper part of the guide sleeve pressing cover; a throttling guide sleeve is arranged in the valve seat and the guide sleeve gland, and the throttling guide sleeve is communicated with the first pressure-adjustable channel and the second pressure-adjustable channel. The application has simple structure and small occupied space; the function of reducing the flow velocity of the fluid after the pressure reduction of each stage prevents the unfavorable conditions such as vibration and the like caused by the too fast flow velocity impacting the valve core, and also has the auxiliary pressure reduction function.
Description
Technical Field
The application belongs to the technical field of valves, and relates to a multi-section decompression single-seat regulating valve adopting a throttling guide sleeve.
Background
At present, most of common temperature reduction water loop regulating valves adopt a valve trim with a single seat structure, because the pressure reduction effect is not obvious, flushing of the valve trim is easily caused, the regulating precision is reduced after the regulating part of the valve trim is damaged, a valve seat with the single seat valve structure is generally fixed on a valve body in a threaded connection manner, threads are easily loosened under a high-pressure working condition, the regulating performance, the sealing effect and the service life of the valve seat are greatly reduced, fittings are not easy to replace, the threads of the valve body are damaged together after the threads of the valve seat are damaged, and the valve body and the valve seat are required to be matched for replacement, so that the valve is uneconomical. In the process of temperature reduction, if the temperature reduction water quantity is not well controlled, the superheated steam is easy to generate wet saturated steam to cause the increase of the water quantity in the pipeline, so that the temperature adjustment is influenced, even the water hammer site appears in the pipeline, the safety problem of the site pipeline is influenced, and the problems are common problems of the temperature reduction water loop regulating valve.
The labyrinth sleeve depressurization regulating valve has good depressurization effect, and the defect is that the labyrinth flow channel is easy to block, so that the labyrinth flow channel can only be used for clean media, the working condition of the temperature and pressure reduction device is complex, fine impurities in the temperature reduction water medium can be blocked in the sleeve labyrinth through accumulation, the regulating flow is insufficient, the temperature of superheated steam in a pipeline can not be reduced in real time, and the safety accident is caused. Therefore, the temperature-reducing water loop regulating valve in the temperature-reducing and pressure-reducing device generally does not adopt a labyrinth sleeve pressure-reducing regulating valve.
Disclosure of Invention
The application aims to provide a multi-section decompression single-seat regulating valve adopting a throttling guide sleeve, which can solve the problems.
According to the technical scheme provided by the application: a multi-section decompression single-seat regulating valve adopting a throttling guide sleeve comprises a valve body, wherein a guide sleeve pressing cover and a valve seat which are mutually sealed are sequentially arranged in the valve body from top to bottom, a throttling valve core is slidably arranged in the guide sleeve pressing cover and the valve seat, a first pressure-adjustable channel is arranged between the valve seat and the throttling valve core, and a second pressure-adjustable channel and a third pressure-adjustable channel are arranged between the middle part of the guide sleeve pressing cover and the throttling valve core; the lower part of the valve body is provided with a medium inflow channel and a medium outflow channel, the medium inflow channel is communicated with the valve seat, and the medium outflow channel is communicated with the upper part of the guide sleeve pressing cover; a throttling guide sleeve is arranged in the valve seat and the guide sleeve gland, and the throttling guide sleeve is communicated with the first pressure-adjustable channel and the second pressure-adjustable channel.
As a further improvement of the application, a guide sleeve gland cavity and a valve seat cavity are sequentially arranged in the valve body from top to bottom, and a medium inflow channel is communicated below the valve seat cavity.
As a further improvement of the application, a first valve core sliding cavity is arranged in the valve seat, the lower part of the first valve core sliding cavity is communicated with a first pressure regulating hole, and the first pressure regulating hole is communicated with a medium inflow channel.
As a further improvement of the application, the upper part of the valve seat is provided with a valve seat positioning boss, and the bottom of the guide sleeve gland is provided with a gland lower positioning boss.
As a further improvement of the application, the first pressure regulating hole adopts a round corner structure.
As a further improvement of the application, the guide sleeve gland is provided with a second valve core sliding cavity, the lower part of the second valve core sliding cavity is communicated with the first valve core sliding cavity, a second pressure regulating hole and a third pressure regulating hole are sequentially arranged in the second valve core sliding cavity from bottom to top, the side surface of the second valve core sliding cavity is communicated with the guide sleeve gland medium outflow channel, and the guide sleeve gland medium outflow channel is communicated with the medium outflow channel.
As a further improvement of the application, the throttle valve core is sequentially provided with a first throttle shaft section, a second throttle shaft section and a third throttle shaft section from bottom to top, wherein the first throttle shaft section, the second throttle shaft section and the third throttle shaft section are respectively positioned in the first pressure regulating hole, the second pressure regulating hole and the third pressure regulating hole, and gaps of the first throttle shaft section, the second throttle shaft section and the third throttle shaft section, the first pressure regulating hole, the second pressure regulating hole and the third pressure regulating hole respectively form a first pressure regulating channel, a second pressure regulating channel and a third pressure regulating channel.
As a further improvement of the application, the first throttle shaft section, the second throttle shaft section and the third throttle shaft section are of a structure which gradually contracts from top to bottom.
As a further improvement of the application, the lower ends of the second throttle shaft section and the third throttle shaft section are provided with deceleration grooves.
As a further improvement of the application, a valve core positioning hole is arranged in the throttling guide sleeve, and a plurality of decompression grooves are uniformly distributed in the valve core positioning hole Zhou Shuzhi; the throttle valve core is provided with a positioning flange which is positioned between the first throttle shaft section and the second throttle shaft section.
The application has the positive progress effects that:
1. the application has the advantages of simple structure, convenient processing, high interchangeability, arbitrary control of the depressurization effect according to the width of the depressurization groove, and low cost and is beneficial to replacement.
2. The application adopts a throttling cascade valve core and has the function of reducing pressure and regulating. The flow capacity of the first section of throttling valve core is 1/4 of the flow capacity of the next sections of throttling valve cores, so that the sealing performance and the regulating performance of the first section of throttling valve core are not affected, and the flow capacity of the next sections of throttling valve core needs to be designed to be the same; therefore, the total pressure drop born by the later sections of throttle valve cores is 16 times of the pressure drop born by the first section of valve cores, and the stability and the reliability of the first section of throttle valve cores are ensured.
3. The throttle guide sleeve is arranged and fixed between the valve seat and the throttle guide sleeve pressing cover, can be arbitrarily disassembled and replaced, and is used for stabilizing the valve core to prevent the valve core from vibrating and is a precondition of stable adjustment.
4. The application realizes multistage decompression by replacing the labyrinth sleeve regulating valve with the decompression groove of the throttling guide sleeve and the throttling cascade valve core, and improves the adverse conditions of flow passage blockage, inconvenient maintenance and the like
5. The inner hole of the throttling guide sleeve pressure cover is provided with the annular groove, the effect of reducing the flow velocity of fluid after pressure reduction of each stage is achieved, the adverse conditions such as vibration and the like caused by the fact that the flow velocity is too fast and impacts on a valve core are prevented, the throttling guide sleeve pressure cover also has an auxiliary pressure reduction function, and the throttling guide sleeve pressure cover has the ratio of 10% -15% of the total pressure drop.
Drawings
Fig. 1 is a schematic structural view of the present application.
FIG. 2 is a schematic illustration of the flow of a medium according to the present application.
FIG. 3 is a schematic view of a throttle valve core of the present application.
Fig. 4 is a schematic structural view of the throttle guide sleeve of the present application.
Detailed Description
It should be noted that, without conflict, the embodiments of the present application and features of the embodiments may be combined with each other. The application will be described in detail below with reference to the drawings in connection with embodiments.
In order that those skilled in the art will better understand the present application, a technical solution in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present application without making any inventive effort, shall fall within the scope of the present application.
It should be noted that the terms "first," "second," and the like in the description and the claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate in order to describe the embodiments of the application herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a process, method, system, article, or apparatus that comprises a list of steps or elements does not necessarily limit the process, method, system, article, or apparatus to those explicitly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
In fig. 1-4, the valve comprises a valve body 1, a medium inflow channel 1-1, a medium outflow channel 1-2, a valve cover 2, a valve seat 5, a throttling guide sleeve 6, a throttling valve core 7, a guide sleeve gland 8 and the like.
As shown in fig. 1, the application is a multi-section decompression single-seat regulating valve adopting a throttling guide sleeve, which comprises a valve body 1, wherein a guide sleeve gland 8 and a valve seat 5 which are mutually sealed are sequentially arranged in the valve body 1 from top to bottom, a throttling valve core 7 is slidably arranged in the guide sleeve gland 8 and the valve seat 5, a first pressure-regulating channel is arranged between the valve seat 5 and the throttling valve core 7, and a second pressure-regulating channel and a third pressure-regulating channel are arranged between the middle part of the guide sleeve gland 8 and the throttling valve core 7; the lower part of the valve body 1 is provided with a medium inflow channel 1-1 and a medium outflow channel 1-2, the medium inflow channel 1-1 is communicated with the valve seat 5, and the medium outflow channel 1-2 is communicated with the upper part of the guide sleeve gland 8; the valve seat 5 and the guide sleeve gland 8 are internally provided with a throttling guide sleeve 6, the throttling guide sleeve 6 is sleeved on the periphery of the lower part of the throttling valve core 7, and the throttling guide sleeve 6 is communicated with a first pressure-adjustable channel and a second pressure-adjustable channel.
A guide sleeve gland cavity and a valve seat cavity are sequentially formed in the valve body 1 from top to bottom and are respectively used for installing a guide sleeve gland 8 and a valve seat 5; the medium flowing into the channel 1-1 is communicated below the valve seat cavity.
The valve seat 5 is internally provided with a first valve core sliding cavity 5-1, the lower part of the first valve core sliding cavity 5-1 is communicated with a first pressure regulating hole 5-2, and the upper part of the valve seat 5 is provided with a valve seat positioning boss. The first pressure regulating hole 5-2 communicates with the medium inflow passage 1-1. The first pressure regulating hole 5-2 adopts a round corner design, so that stress concentration is avoided. The first pressure regulating hole 5-2 is a medium opening hole and is in a taper hole structure with a large upper part and a small lower part, when the throttle valve core 7 descends to a certain position, the first pressure regulating hole 5-2 is in contact with the periphery of the throttle valve core 7, the area of a first pressure regulating channel is 0, and the regulating valve is closed.
The guide sleeve gland 8 is provided with a second valve core sliding cavity 8-1, the lower part of the second valve core sliding cavity 8-1 is communicated with the first valve core sliding cavity 5-1, a second pressure regulating hole 8-2 and a third pressure regulating hole 8-3 are sequentially arranged in the second valve core sliding cavity 8-1 from bottom to top, the side surface of the second valve core sliding cavity 8-1 is communicated with a guide sleeve gland medium outflow channel 8-4, and the guide sleeve gland medium outflow channel 8-4 is communicated with the medium outflow channel 1-2. The bottom of the guide sleeve gland 8 is provided with a gland lower positioning boss.
The valve seat positioning boss is matched with the gland lower positioning boss and is used for positioning the valve seat 5 and the guide sleeve gland 8.
As shown in fig. 3, the throttle valve core 7 is sequentially provided with a first throttle shaft section 7-1, a second throttle shaft section 7-2 and a third throttle shaft section 7-3 from bottom to top, wherein the first throttle shaft section 7-1, the second throttle shaft section 7-2 and the third throttle shaft section 7-3 are respectively positioned in the first pressure regulating hole 5-2, the second pressure regulating hole 8-2 and the third pressure regulating hole 8-3, and gaps between the first throttle shaft section 7-1, the second throttle shaft section 7-2 and the third throttle shaft section 7-3 and the first pressure regulating hole 5-2, the second pressure regulating hole 8-2 and the third pressure regulating hole 8-3 respectively form a first pressure regulating channel, a second pressure regulating channel and a third pressure regulating channel.
The first throttle shaft section 7-1, the second throttle shaft section 7-2 and the third throttle shaft section 7-3 are of structures which gradually shrink from top to bottom, and the lower ends of the second throttle shaft section 7-2 and the third throttle shaft section 7-3 are provided with a speed reduction groove 7-4, so that the instant flow velocity is reduced, the impact on a valve core is reduced, and the vibration condition is prevented.
As shown in fig. 4, a valve core positioning hole 6-1 is formed in the throttle guide sleeve 6, and a plurality of decompression grooves 6-2 are uniformly distributed in the valve core positioning hole 6-1 by Zhou Shuzhi. The throttle valve core 7 is provided with a positioning flange 7-5 which is positioned between the first throttle shaft section 7-1 and the second throttle shaft section 7-2. The positioning flange 7-5 is matched with the valve core positioning hole 6-1 to guide the medium into the pressure reducing groove 6-2.
The upper part of the valve body 1 is provided with a valve cover 2, and the lower part of the valve cover 2 props against a guide sleeve gland 8. The opposite surface of the valve cover 2 and the guide sleeve gland 8 is provided with a positioning boss which is matched with each other. A third valve core sliding cavity is arranged in the valve cover 2.
The working process of the application is as follows:
as shown in fig. 2, the medium is introduced into the valve seat 5 through the medium inflow passage 1-1, flows through the decompression groove 6-2 of the throttle guide 6, and is introduced into the guide sleeve gland 8, and is discharged from the medium outflow passage 1-2.
The first pressure-adjustable channel, the second pressure-adjustable channel and the third pressure-adjustable channel decompress the medium, and when the medium pressure is required to be regulated, the flow areas of the first pressure-adjustable channel, the second pressure-adjustable channel and the third pressure-adjustable channel are controlled through the up-and-down movement of the throttle valve core 7, so that the regulation of the medium pressure is realized.
It is to be understood that the above embodiments are merely illustrative of the application of the principles of the present application, but not in limitation thereof. Various modifications and improvements may be made by those skilled in the art without departing from the spirit and substance of the application, and are also considered to be within the scope of the application.
Claims (6)
1. The multi-section decompression single-seat regulating valve is characterized by comprising a valve body (1), wherein a guide sleeve gland (8) and a valve seat (5) which are mutually sealed are sequentially arranged in the valve body (1) from top to bottom, a throttle valve core (7) is slidably arranged in the guide sleeve gland (8) and the valve seat (5), a first pressure-adjustable channel is arranged between the valve seat (5) and the throttle valve core (7), and a second pressure-adjustable channel and a third pressure-adjustable channel are arranged between the middle part of the guide sleeve gland (8) and the throttle valve core (7); the lower part of the valve body (1) is provided with a medium inflow channel (1-1) and a medium outflow channel (1-2), the medium inflow channel (1-1) is communicated with the valve seat (5), and the medium outflow channel (1-2) is communicated with the upper part of the guide sleeve gland (8); a throttling guide sleeve (6) is arranged in the valve seat (5) and the guide sleeve gland (8), and the throttling guide sleeve (6) is communicated with the first pressure-adjustable channel and the second pressure-adjustable channel; a valve core positioning hole (6-1) is formed in the throttling guide sleeve (6), and a plurality of decompression grooves (6-2) are uniformly distributed in the valve core positioning hole (6-1) Zhou Shuzhi; the throttle valve core (7) is provided with a positioning flange (7-5) which is positioned between the first throttle shaft section (7-1) and the second throttle shaft section (7-2); the positioning flange (7-5) is matched with the valve core positioning hole (6-1); a first valve core sliding cavity (5-1) is formed in the valve seat (5), a first pressure regulating hole (5-2) is communicated below the first valve core sliding cavity (5-1), and the first pressure regulating hole (5-2) is communicated with the medium inflow channel (1-1); the guide sleeve gland (8) is provided with a second valve core sliding cavity (8-1), the lower part of the second valve core sliding cavity (8-1) is communicated with the first valve core sliding cavity (5-1), a second pressure regulating hole (8-2) and a third pressure regulating hole (8-3) are sequentially arranged in the second valve core sliding cavity (8-1) from bottom to top, the side surface of the second valve core sliding cavity (8-1) is communicated with a guide sleeve gland medium outflow channel (8-4), and the guide sleeve gland medium outflow channel (8-4) is communicated with the medium outflow channel (1-2); the throttle valve core (7) is sequentially provided with a first throttle shaft section (7-1), a second throttle shaft section (7-2) and a third throttle shaft section (7-3) from bottom to top, the first throttle shaft section (7-1), the second throttle shaft section (7-2) and the third throttle shaft section (7-3) are respectively positioned in the first pressure regulating hole (5-2), the second pressure regulating hole (8-2) and the third pressure regulating hole (8-3), and gaps between the first throttle shaft section (7-1), the second throttle shaft section (7-2), the third throttle shaft section (7-3) and the first pressure regulating hole (5-2), the second pressure regulating hole (8-2) and the third pressure regulating hole (8-3) respectively form a first pressure regulating channel, a second pressure regulating channel and a third pressure regulating channel.
2. The multi-stage decompression single-seat regulating valve adopting the throttling guide sleeve according to claim 1, wherein a guide sleeve gland cavity and a valve seat cavity are sequentially formed in the valve body (1) from top to bottom, and a medium inflow channel (1-1) is communicated below the valve seat cavity.
3. The multi-stage pressure reducing single-seat regulating valve adopting the throttling guide sleeve according to claim 1, wherein a valve seat positioning boss is arranged at the upper part of the valve seat (5), and a gland lower positioning boss is arranged at the bottom of the guide sleeve gland (8).
4. The multi-stage pressure reducing single seat regulating valve with throttle guide sleeve according to claim 1, wherein the first pressure regulating hole (5-2) adopts a round corner structure.
5. The multi-stage decompression single seat regulating valve adopting the throttling guide sleeve according to claim 1, wherein the first throttling shaft section (7-1), the second throttling shaft section (7-2) and the third throttling shaft section (7-3) are in a structure gradually shrinking from top to bottom.
6. The multi-stage decompression single seat regulating valve adopting the throttling guide sleeve according to claim 5, wherein the lower ends of the second throttling shaft section (7-2) and the third throttling shaft section (7-3) are provided with a deceleration groove (7-4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111515670.3A CN114183538B (en) | 2021-12-13 | 2021-12-13 | Multi-section decompression single-seat regulating valve adopting throttling guide sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111515670.3A CN114183538B (en) | 2021-12-13 | 2021-12-13 | Multi-section decompression single-seat regulating valve adopting throttling guide sleeve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114183538A CN114183538A (en) | 2022-03-15 |
| CN114183538B true CN114183538B (en) | 2023-11-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111515670.3A Active CN114183538B (en) | 2021-12-13 | 2021-12-13 | Multi-section decompression single-seat regulating valve adopting throttling guide sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114183538B (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6578604B1 (en) * | 1999-08-03 | 2003-06-17 | Sidel | Ball valve with slot for continuous flow |
| JP2012177470A (en) * | 2011-01-31 | 2012-09-13 | Saginomiya Seisakusho Inc | Throttle valve device |
| CN102705574A (en) * | 2012-05-31 | 2012-10-03 | 无锡宝牛阀业有限公司 | Pressure balancing type multi-section and multi-stage depressurization sleeve guiding regulating valve |
| CN102979923A (en) * | 2012-11-30 | 2013-03-20 | 无锡智能自控工程股份有限公司 | Reduced pressure regulating valve special for reflowing of liquid oxygen pump |
| CN105134984A (en) * | 2015-10-16 | 2015-12-09 | 吴忠仪表有限责任公司 | Low-flow-rate high-differential-pressure double-helix pressure reduction control valve |
| CN111779842A (en) * | 2020-07-13 | 2020-10-16 | 吴忠中创自控阀有限公司 | Regulating valve for hot-melt salt |
| JP2021055711A (en) * | 2019-09-27 | 2021-04-08 | 株式会社鷺宮製作所 | Motor-driven valve and refrigeration cycle system |
| CN213419894U (en) * | 2020-07-28 | 2021-06-11 | 北京航天石化技术装备工程有限公司 | Pressure reducing regulating valve |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7832653B2 (en) * | 2005-02-28 | 2010-11-16 | Daikin Industries, Ltd. | Expansion valve having a grooved valve member and refrigeration device including the same |
-
2021
- 2021-12-13 CN CN202111515670.3A patent/CN114183538B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6578604B1 (en) * | 1999-08-03 | 2003-06-17 | Sidel | Ball valve with slot for continuous flow |
| JP2012177470A (en) * | 2011-01-31 | 2012-09-13 | Saginomiya Seisakusho Inc | Throttle valve device |
| CN102705574A (en) * | 2012-05-31 | 2012-10-03 | 无锡宝牛阀业有限公司 | Pressure balancing type multi-section and multi-stage depressurization sleeve guiding regulating valve |
| CN102979923A (en) * | 2012-11-30 | 2013-03-20 | 无锡智能自控工程股份有限公司 | Reduced pressure regulating valve special for reflowing of liquid oxygen pump |
| CN105134984A (en) * | 2015-10-16 | 2015-12-09 | 吴忠仪表有限责任公司 | Low-flow-rate high-differential-pressure double-helix pressure reduction control valve |
| JP2021055711A (en) * | 2019-09-27 | 2021-04-08 | 株式会社鷺宮製作所 | Motor-driven valve and refrigeration cycle system |
| CN111779842A (en) * | 2020-07-13 | 2020-10-16 | 吴忠中创自控阀有限公司 | Regulating valve for hot-melt salt |
| CN213419894U (en) * | 2020-07-28 | 2021-06-11 | 北京航天石化技术装备工程有限公司 | Pressure reducing regulating valve |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114183538A (en) | 2022-03-15 |
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