WO2023143025A1 - Siège de soupape et soupape de détente électronique comprenant ledit siège - Google Patents

Siège de soupape et soupape de détente électronique comprenant ledit siège Download PDF

Info

Publication number
WO2023143025A1
WO2023143025A1 PCT/CN2023/071384 CN2023071384W WO2023143025A1 WO 2023143025 A1 WO2023143025 A1 WO 2023143025A1 CN 2023071384 W CN2023071384 W CN 2023071384W WO 2023143025 A1 WO2023143025 A1 WO 2023143025A1
Authority
WO
WIPO (PCT)
Prior art keywords
section
valve seat
valve
diameter
slow flow
Prior art date
Application number
PCT/CN2023/071384
Other languages
English (en)
Chinese (zh)
Inventor
陈勇好
贺宇辰
赵俊
Original Assignee
浙江盾安人工环境股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 浙江盾安人工环境股份有限公司 filed Critical 浙江盾安人工环境股份有限公司
Publication of WO2023143025A1 publication Critical patent/WO2023143025A1/fr

Links

Images

Classifications

    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

Definitions

  • the present application relates to the technical field of control valves, in particular, to a valve seat and an electronic expansion valve having the same.
  • the fluid flows into the accommodating chamber of the electronic expansion valve and then flows out from the valve port, and when the fluid passes through the electronic expansion valve, relatively large noise will be generated.
  • the noise of the fluid is generally reduced by adjusting the structure of the valve port, but the fluid generates relatively large noise in the containing cavity, which cannot effectively reduce the noise generated by the electronic expansion valve as a whole.
  • the present application provides a valve seat and an electronic expansion valve having the same, so as to solve the problem of high noise of the electronic expansion valve in the prior art.
  • a valve seat is provided, the valve seat has a first end and a second end oppositely arranged, a first accommodation chamber is arranged inside the valve seat, a fluid opening is arranged on the side of the valve seat, and the first accommodation chamber A slow-flow recess is provided on the inner wall of the valve seat, and the slow-flow recess is set corresponding to the fluid opening; the second end of the valve seat is provided with a valve port, which communicates with the first receiving chamber, and the valve port includes the first section, the second section, and the second section arranged in sequence.
  • the first section is set close to the first housing cavity
  • the diameter of the second section is larger than the diameter of the first section
  • the diameter of the end of the third section near the second section is larger than the diameter of the second section
  • the third section The diameter of the valve seat gradually increases from the first end of the valve seat to the second end of the valve seat.
  • a slow-flow recess is provided on the inner side wall of the first accommodation chamber, and the slow-flow recess is arranged facing the fluid opening, so that when the fluid flows into the first accommodation chamber from the fluid opening, the fluid flows along the inner wall of the slow-flow recess.
  • the valve port includes the first section, the second section and the third section, and the diameter of the third section is from the diameter of the valve seat
  • the direction from the first end to the second end of the valve seat gradually increases, so that the diameter difference between the first section and the second section is small, and the diameter of the second section is the same as that of the third section near the end of the second section.
  • the difference in diameter is small, so that when the fluid flows through the valve port, the vortex generated at the connection between the first section and the second section, and at the connection between the second section and the third section is small, so that the fluid can flow through the valve port.
  • Adopting the above technical solution not only reduces the noise of the fluid in the first accommodation chamber, but also reduces the noise of the fluid in the valve port, thereby reducing the noise generated by the fluid in the electronic expansion valve to a large extent and improving the user experience .
  • the slow flow recess includes a connected first slow flow section and a second slow flow section, the first slow flow section is arranged close to the first accommodation chamber, and the circumferential dimension of the second slow flow section gradually moves away from the fluid opening. decrease. Setting the first slow flow section increases the distance between the fluid flow to the fluid opening and the second slow flow section, thereby reducing the speed of the fluid flow to the second slow flow section, thereby reducing the fluid's resistance to the second slow flow section. The impact force of the second slow flow section further reduces fluid noise.
  • the second slow flow section is conical, the centerline of the second slow flow section coincides with the centerline of the fluid opening, the cone angle of the second slow flow section is ⁇ , and the range of ⁇ is 50°-160°. Setting the range of ⁇ to 50°-160° can make the side wall of the valve seat thinner, and can make the noise reduction effect of the second slow flow section better.
  • the diameter of the first section is 1 mm to 4 mm. Setting the diameter of the first segment 51 between 1 mm and 4 mm can increase the flow rate of the fluid flowing out from the valve port and reduce the volume of the valve seat.
  • the diameter of the first section is A
  • the diameter of the second section is B
  • B ⁇ 1.2A Setting it to B ⁇ 1.2A can make the noise of the fluid smaller.
  • the diameter of the second section is B
  • the diameter of the end of the third section close to the first accommodation chamber is C
  • C ⁇ 1.2B Setting it to C ⁇ 1.2B can further reduce the noise of the fluid.
  • the length of the first segment is L1
  • the length of the second segment is L2
  • the length of the first section is L1;
  • the first accommodation chamber is a cylindrical structure,
  • the first slow flow section is a cylindrical structure, the end surface of the first accommodation chamber close to the valve port and the side of the first slow flow section close to the valve port
  • the distance between the walls is L4;
  • an electronic expansion valve including a valve housing and the valve seat described above, a second accommodation chamber is provided in the valve housing, one end of the valve housing is connected to the first end of the valve seat, and the second The first accommodating chamber communicates with the second accommodating chamber.
  • Fig. 1 shows the structural representation of the valve seat provided by the present application
  • Fig. 2 shows another schematic structural view of the valve seat provided by the present application.
  • valve seat 11. The first end of the valve seat; 12. The second end of the valve seat; 20. The slow flow recess; 21. The first slow flow section; 22. The second slow flow section; 30. The first accommodation cavity; 40, fluid opening; 50, valve port; 51, first section; 52, second section; 53, third section.
  • the embodiment of the present application provides a valve seat.
  • the valve seat 10 has a first end and a second end oppositely arranged.
  • a fluid opening 40 is provided, and a slow-flow recess 20 is provided on the inner side wall of the first accommodation chamber 30, and the slow-flow recess 20 is set corresponding to the fluid opening 40;
  • the second end 12 of the valve seat is provided with a valve port 50, and the valve port 50 is connected to the second end 12 of the valve seat.
  • a receiving chamber 30 communicates, and the valve port 50 includes a first section 51, a second section 52 and a third section 53 arranged in sequence, the first section 51 is arranged close to the first receiving chamber 30, and the diameter of the second section 52 is larger than that of the first section 51, the diameter of the third section 53 near the end of the second section 52 is greater than the diameter of the second section 52, the diameter of the third section 53 is from the first end 11 of the valve seat to the second end 12 of the valve seat Gradually increase.
  • a slow-flow concave portion 20 is provided on the inner side wall of the first housing chamber 30, and the slow-flow concave portion is arranged facing the fluid opening 40, so that when the fluid flows into the first housing chamber 30 from the fluid opening 40, the fluid flows along the slow-moving
  • the inner wall of the flow recess 20 flows to the valve port 50, and the fluid velocity is reduced, which can prevent the fluid from impacting on the inner wall of the first receiving chamber 30 to generate greater noise;
  • the valve port 50 includes a first segment 51, a second segment 52 and a third segment.
  • the diameter of the third section 53 gradually increases from the first end 11 of the valve seat to the second end 12 of the valve seat, so that the diameter difference between the first section and the second section 52 is small, and the second section The difference between the diameter of the section and the diameter of the end of the third section 53 near the second section 52 is small, so that when the fluid flows through the valve port 50, the connection between the first section 51 and the second section 52, the second The vortex generated at the connection between the section 52 and the third section 53 is relatively small, thereby making the noise generated when the fluid flows through the valve port 50 small.
  • Adopting the above-mentioned technical solution not only reduces the noise of the fluid in the first accommodation chamber 30, but also reduces the noise of the fluid in the valve port 50, so that the noise generated by the fluid in the electronic expansion valve can be reduced to a large extent, and the user experience can be improved. use experience.
  • the slow flow recess 20 includes a connected first slow flow section 21 and a second slow flow section 22, the first slow flow section 21 is disposed close to the first accommodation chamber 30, and the circumferential dimension of the second slow flow section 22 is toward The direction away from the fluid opening 40 gradually decreases.
  • Setting the first slow flow section 21 increases the distance between the fluid flow to the fluid opening 40 and the second slow flow section 22, thereby reducing the speed at which the fluid flows to the second slow flow section 22, thereby reducing the The impact force of the fluid on the second slow flow section 22 further reduces fluid noise.
  • the circumferential dimension of the second slow flow section 22 gradually decreases away from the direction of the fluid opening 40, so that the fluid can flow along the inner wall of the second slow flow section 22 toward the valve port 50, thereby preventing the fluid from impacting the second slow flow section.
  • the backflow of the fluid produces noise, and this setting can reduce the flow velocity of the fluid, thereby reducing the fluid noise.
  • the side wall of the second slow flow section 22 may be a structure such as an arc surface, a conical surface, a combination of an arc surface and a conical surface, a combination of multiple conical surfaces, or a combination of multiple arc surfaces.
  • the second slow flow section 22 is conical, the centerline of the second slow flow section 22 coincides with the centerline of the fluid opening 40, the cone angle of the second slow flow section 22 is ⁇ , and the range of ⁇ is 50° ⁇ 160°.
  • the second slow flow section 22 is conical, and the processing is simple and convenient.
  • the center line of the second slow flow section 22 coincides with the center line of the fluid opening 40, so that the flow direction of the fluid flowing into the first accommodation chamber 30 from the fluid opening 40 is facing the second slow flow section 22, so that more fluid Both flow to the second slow flow section 22.
  • ⁇ is less than 50°, the length of the second slow flow section 22 is relatively large when the diameter of the end of the second slow flow section 22 close to the first accommodating chamber 30 satisfies the requirement, thereby causing the side wall of the valve seat 10 to be thicker. If ⁇ is greater than 160°, the slow flow effect of the second slow flow section 22 will be poor, resulting in greater fluid noise in the first accommodation chamber 30; therefore, the The range of ⁇ is set from 50° to 160°, which can make the side wall of the valve seat 10 thinner, thereby saving raw materials and reducing the volume of the valve seat 10, and can make the noise reduction effect of the second slow flow section 22 better . Specifically, ⁇ is 50°, 60°, 70°, 90°, 110°, 120°, 130° or 160° or the like.
  • the diameter of the first segment 51 is 1 mm to 4 mm. If the diameter of the first section 51 is less than 1mm, the flow rate of the fluid flowing out from the valve port 50 is too small; Therefore, setting the diameter of the first segment 51 between 1 mm and 4 mm can increase the flow rate of the fluid flowing out from the valve port 50 and make the volume of the valve seat 10 smaller. Specifically, the diameter of the first section 51 is 1mm, 1.65mm, 2.0mm, 3mm, 3.2mm or 4mm and so on.
  • the diameter of the first section 51 is A
  • the diameter of the second section 52 is B
  • B ⁇ 1.2A If B is less than 1.2A, the difference between the diameter of the second section 52 and the diameter of the first section 51 is small, resulting in a large difference between the diameter of the second section 52 and the diameter of the third section 53, resulting in The vortex generated by the fluid at the junction of the second segment 52 and the third segment 53 is relatively large, which in turn leads to relatively high fluid noise. Therefore, setting B ⁇ 1.2A can reduce the fluid noise. Specifically, B is equal to 1.2A, B is equal to 1.4A or B is equal to 1.6A, etc.
  • the diameter of the second section 52 is B
  • the diameter of the end of the third section 53 close to the first accommodation chamber 30 is C
  • C ⁇ 1.2B If C is less than 1.2B, the difference between the diameter of the end of the third section 53 close to the first receiving cavity 30 and the diameter of the second section 52 is small, resulting in the difference between the diameter of the second section 52 and the diameter of the first section 51
  • the larger the difference the greater the vortex generated at the connection between the first section 51 and the second section 52 of the fluid, and the larger noise will be generated at the connection between the first section 51 and the second section 52. Therefore , set to C ⁇ 1.2B, can further reduce the noise of the fluid. Specifically, C equals 1.2B, C equals 1.5B or C equals 1.7B, etc.
  • the length of the first segment 51 is L1
  • the length of the second segment 52 is L2
  • N takes a value in the range of 0.5 to 2, which can make the fluid noise smaller and at the same time make the volume of the valve seat 10 smaller.
  • N can be 0.5, 1 or 2, etc.
  • the length of the first section 51 is L1; the first accommodation chamber 30 is a cylindrical structure, the first slow flow section 21 is a cylindrical structure, and the end surface of the first accommodation chamber 30 close to the valve port 50 is in contact with the first slow flow
  • the present application also provides an electronic expansion valve, which includes a valve housing and the valve seat described above.
  • a second accommodation chamber is provided in the valve housing. One end of the valve housing is connected to the first end 11 of the valve seat. The first accommodation chamber 30 and The second accommodating cavity is connected.
  • a valve core assembly is also provided in the electronic expansion valve. The valve core assembly is disposed in the first accommodation chamber 30 and the second accommodation chamber. The valve core assembly is used to block or open the valve port.
  • orientation words such as “front, back, up, down, left, right", “horizontal, vertical, vertical, horizontal” and “top, bottom” etc. indicate the orientation Or positional relationship is generally based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the application and simplifying the description. In the absence of a contrary statement, these orientation words do not indicate or imply the device or element referred to It must have a specific orientation or be constructed and operated in a specific orientation, so it should not be construed as limiting the protection scope of the present application; the orientation words “inner and outer” refer to the inner and outer relative to the outline of each component itself.
  • spatially relative terms may be used here, such as “on !, “over !, “on the surface of !, “above”, etc., to describe the The spatial positional relationship between one device or feature shown and other devices or features. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, devices described as “above” or “above” other devices or configurations would then be oriented “beneath” or “above” the other devices or configurations. under other devices or configurations”. Thus, the exemplary term “above” can encompass both an orientation of “above” and “beneath”. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptions used herein interpreted accordingly.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Details Of Valves (AREA)

Abstract

L'invention concerne un siège (10) de soupape et une soupape de détente électronique comportant ledit siège. Le siège (10) de soupape est pourvu d'une première extrémité et d'une seconde extrémité opposée ; une première cavité de réception (30) est disposée dans le siège (10) de soupape ; une ouverture (40) pour fluide est disposée au niveau d'une face latérale du siège (10) de soupape ; un évidement de ralentissement d'écoulement (20) est disposé sur une paroi latérale interne de la première cavité de réception (30), et l'évidement de ralentissement d'écoulement (20) est conçu de façon à correspondre à l'ouverture (40) pour fluide ; la seconde extrémité du siège (10) de soupape est pourvue d'un orifice (50) de soupape ; l'orifice (50) de soupape est en communication avec la première cavité de réception (30) ; l'orifice (50) de soupape comprend une première section (51), une deuxième section (52) et une troisième section (53) qui sont ménagées en série ; la première section (51) est agencée à proximité de la première cavité de réception (30) ; le diamètre de la deuxième section (52) est supérieur au diamètre de la première section (51) ; le diamètre de l'extrémité de la troisième section (53) proche de la deuxième section (52) est supérieur au diamètre de la deuxième section (52) ; et le diamètre de la troisième section (53) augmente progressivement dans la direction partant de la première extrémité du siège (10) de soupape vers la seconde extrémité du siège (10) de soupape. La présente solution technique permet de résoudre le problème selon lequel une grande quantité de bruit provient d'une soupape de détente électronique dans l'état de la technique.
PCT/CN2023/071384 2022-01-26 2023-01-09 Siège de soupape et soupape de détente électronique comprenant ledit siège WO2023143025A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202220236796.0U CN217177640U (zh) 2022-01-26 2022-01-26 阀座及具有其的电子膨胀阀
CN202220236796.0 2022-01-26

Publications (1)

Publication Number Publication Date
WO2023143025A1 true WO2023143025A1 (fr) 2023-08-03

Family

ID=82737242

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2023/071384 WO2023143025A1 (fr) 2022-01-26 2023-01-09 Siège de soupape et soupape de détente électronique comprenant ledit siège

Country Status (2)

Country Link
CN (1) CN217177640U (fr)
WO (1) WO2023143025A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN217177640U (zh) * 2022-01-26 2022-08-12 浙江盾安人工环境股份有限公司 阀座及具有其的电子膨胀阀

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004340260A (ja) * 2003-05-15 2004-12-02 Saginomiya Seisakusho Inc 流量制御弁
EP3171058A1 (fr) * 2015-11-17 2017-05-24 Fujikoki Corporation Vanne de contrôle de flux
JP2019163888A (ja) * 2018-03-19 2019-09-26 株式会社不二工機 膨張弁
CN111051797A (zh) * 2017-08-23 2020-04-21 株式会社不二工机 膨胀阀
CN211082433U (zh) * 2019-11-08 2020-07-24 无锡佳与阳精密机械有限公司 一种多级缓冲溢流阀
CN113566460A (zh) * 2020-04-26 2021-10-29 浙江三花智能控制股份有限公司 电子膨胀阀
CN217177640U (zh) * 2022-01-26 2022-08-12 浙江盾安人工环境股份有限公司 阀座及具有其的电子膨胀阀

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004340260A (ja) * 2003-05-15 2004-12-02 Saginomiya Seisakusho Inc 流量制御弁
EP3171058A1 (fr) * 2015-11-17 2017-05-24 Fujikoki Corporation Vanne de contrôle de flux
CN111051797A (zh) * 2017-08-23 2020-04-21 株式会社不二工机 膨胀阀
JP2019163888A (ja) * 2018-03-19 2019-09-26 株式会社不二工機 膨張弁
CN211082433U (zh) * 2019-11-08 2020-07-24 无锡佳与阳精密机械有限公司 一种多级缓冲溢流阀
CN113566460A (zh) * 2020-04-26 2021-10-29 浙江三花智能控制股份有限公司 电子膨胀阀
CN217177640U (zh) * 2022-01-26 2022-08-12 浙江盾安人工环境股份有限公司 阀座及具有其的电子膨胀阀

Also Published As

Publication number Publication date
CN217177640U (zh) 2022-08-12

Similar Documents

Publication Publication Date Title
WO2023143025A1 (fr) Siège de soupape et soupape de détente électronique comprenant ledit siège
WO2022193812A1 (fr) Soupape électrique
WO2023143024A1 (fr) Soupape de détente électronique
JPH08173861A (ja) スプレーガン用の改良されたエアキャップ付きノズル
EP1197695A3 (fr) Tiroir
WO2023088254A1 (fr) Détendeur électronique
US20160340874A1 (en) Position restoring and water splitting shower arm and method of implementing the same
CN216158455U (zh) 阀座及具有其的电子膨胀阀
WO2023185916A1 (fr) Noyau de soupape et clapet de non-retour
CN215806405U (zh) 阀座及具有其的电子膨胀阀
CN216158324U (zh) 电子膨胀阀
WO2023030409A1 (fr) Pointeau de soupape et détendeur électronique comprenant ledit pointeau de soupape
WO2022233322A1 (fr) Soupape de détente
WO2023030462A1 (fr) Ensemble soupape et détendeur électronique le comprenant
WO2014161304A1 (fr) Structure horizontale de fermeture de porte
WO2022247835A1 (fr) Détendeur électronique
WO2022247727A1 (fr) Dispositif soupape
WO2023030337A1 (fr) Vanne d'expansion électronique
WO2022166666A1 (fr) Vanne à quatre voies
CN211203004U (zh) 一种单向节流阀
CN209072688U (zh) 一种耳机的声学调音结构
CN110939781A (zh) 一种双向节流阀
CN210637561U (zh) 节流阀
WO2023051824A1 (fr) Soupape d'expansion électronique
CN208457230U (zh) 应用在水龙头阀芯上的新型陶瓷阀片

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 23745908

Country of ref document: EP

Kind code of ref document: A1