CN116357761A - Adjustable flow constant temperature heating valve - Google Patents

Adjustable flow constant temperature heating valve Download PDF

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Publication number
CN116357761A
CN116357761A CN202310497333.9A CN202310497333A CN116357761A CN 116357761 A CN116357761 A CN 116357761A CN 202310497333 A CN202310497333 A CN 202310497333A CN 116357761 A CN116357761 A CN 116357761A
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CN
China
Prior art keywords
valve
valve core
case
wall
flow
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
CN202310497333.9A
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Chinese (zh)
Inventor
高广宇
唐兴成
李来彬
王俊雅
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Idc Plumbing & Heating Technology Beijing Co ltd
Original Assignee
Idc Plumbing & Heating Technology Beijing Co ltd
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 Idc Plumbing & Heating Technology Beijing Co ltd filed Critical Idc Plumbing & Heating Technology Beijing Co ltd
Priority to CN202310497333.9A priority Critical patent/CN116357761A/en
Publication of CN116357761A publication Critical patent/CN116357761A/en
Pending legal-status Critical Current

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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
    • F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
    • F16K5/04—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having cylindrical surfaces; Packings therefor
    • F16K5/0407—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having cylindrical surfaces; Packings therefor with particular plug arrangements, e.g. particular shape or built-in means
    • 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
    • F16K1/48—Attaching valve members to screw-spindles
    • 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
    • F16K1/52—Means for additional adjustment of the rate of flow
    • 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
    • F16K27/08—Guiding yokes for spindles; Means for closing housings; Dust caps, e.g. for tyre valves
    • 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
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/44—Mechanical actuating means
    • F16K31/50—Mechanical actuating means with screw-spindle or internally threaded actuating means
    • F16K31/504—Mechanical actuating means with screw-spindle or internally threaded actuating means the actuating means being rotable, rising, and having internal threads which co-operate with threads on the outside of the valve body
    • 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
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/44—Mechanical actuating means
    • F16K31/60—Handles
    • 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
    • F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
    • F16K37/0008—Mechanical means
    • F16K37/0016—Mechanical means having a graduated scale
    • 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
    • F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
    • F16K5/04—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having cylindrical surfaces; Packings therefor
    • F16K5/0442—Spindles and actuating means
    • 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
    • F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
    • F16K5/08—Details
    • F16K5/10—Means for additional adjustment of the rate of flow
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D19/00—Details
    • F24D19/10—Arrangement or mounting of control or safety devices
    • F24D19/1006—Arrangement or mounting of control or safety devices for water heating systems
    • F24D19/1009—Arrangement or mounting of control or safety devices for water heating systems for central heating
    • F24D19/1015—Arrangement or mounting of control or safety devices for water heating systems for central heating using a valve or valves

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Lift Valve (AREA)

Abstract

The invention relates to an adjustable flow constant-temperature air valve, wherein a valve seat is arranged in a valve body in a horizontal manner, a central through hole is arranged on the valve seat, a lower cavity of the valve body is communicated with a medium inlet of the valve body, a valve core and a valve core outer sleeve are arranged in an upper cavity of the valve body, the valve core outer sleeve is fixedly and hermetically connected with the inner wall of the upper cavity, an annular gap is reserved between the outer wall of the lower part of the valve core outer sleeve and the inner wall of the upper cavity, the annular gap is communicated with the medium outlet, a valve core outer sleeve outlet communicated with the annular gap is arranged on the valve core outer sleeve, the valve core is coaxially arranged in the valve core outer sleeve and is in rotary sealing fit with the valve core outer sleeve, a valve core cavity communicated with the central through hole is arranged at the bottom of the valve core, a valve core outlet used for communicating the valve core cavity with the valve core outer sleeve outlet is arranged on the valve core, and the upper width and lower width of the valve core outlet is gradually changed along the circumferential direction of the valve core. The opening and closing and flow regulation of the invention are controlled by adopting single movement modes of different parts, which is beneficial to improving the accuracy of valve flow regulation and is not easy to leak or fail.

Description

Adjustable flow constant temperature heating valve
Technical Field
The invention relates to a constant-temperature air valve with adjustable flow, and belongs to the technical field of valves.
Background
The traditional heating valve comprises a valve body, a valve cavity communicated with an inlet and an outlet at two ends is arranged in the valve body, a valve seat is arranged in the valve cavity, a valve seat is generally horizontally arranged, a central through hole is formed in a necessary part of a medium channel, a valve clack is arranged above the valve seat, a valve sealing pair is formed by the valve clack and the valve seat, the valve clack is connected with a valve rod and driven by the valve rod to move up and down so as to realize opening and closing of the valve and adjust the opening degree of the valve, the valve clack is generally formed by a hard valve clack seat and a rubber sealing gasket embedded on the valve clack seat or is only formed by the rubber sealing gasket, after the rubber sealing gasket is contacted with and tightly pressed against a sealing surface of the valve seat, when the rubber sealing gasket is far away from the valve seat, a medium can pass through a gap between the valve seat and the rubber sealing gasket, the opening degree of the valve is reflected by the gap between the sealing surface of the valve seat and the rubber sealing gasket, and the flow rate of the valve is influenced.
The valve is characterized in that the valve rod drives the valve clack to move up and down to realize the opening, closing and opening adjustment of the valve, and in the opening, closing and opening adjustment process of the valve, the valve rod needs to axially move and rotate relative to the valve body (simultaneously in two movement modes), so that the sealing requirement of the valve rod on the valve body and the process processing requirement of related parts are very high, and in practical application, related sealing elements are very easy to fail or damage due to frequent movement of the valve rod relative to the valve body, so that the valve is leaked or fails.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides the flow-adjustable constant-temperature air valve, the opening and closing of the valve and the flow adjustment are controlled by adopting a single movement mode of different parts, so that the accuracy of the flow adjustment of the valve is improved, and leakage or faults are not easy to occur.
The technical scheme for achieving the aim of the invention is as follows: the utility model provides an adjustable constant temperature air valve, includes the valve body, be equipped with medium import (or call import chamber) and medium export (or call export chamber) on the valve body, be equipped with the disk seat in the valve body, the disk seat level sets up, will the valve pocket in the valve body divide into upper chamber and lower chamber, the disk seat is equipped with and is used for the intercommunication the upper chamber with the central through-hole in lower chamber, the lower chamber with medium import intercommunication, be equipped with case and case overcoat in the upper chamber, the case overcoat with fixed sealing connection between the inner wall in upper chamber, the outer wall of its lower part with leave the annular clearance between the inner wall in upper chamber, the annular clearance with medium export intercommunication, case overcoat bottom with seal between the disk seat, the case is equipped with on the case overcoat with the case overcoat export of annular clearance intercommunication, the case coaxial locates in the case overcoat, with the rotatable sealing fit between the disk seat, the bottom of case be equipped with the case chamber intercommunication, be equipped with on the upper chamber with be equipped with the case overcoat for the width with the case is equipped with the annular clearance between the case's the case overcoat the case export of case.
Preferably, the valve core outer sleeve outlet is a rectangular opening, the position of the valve core outer sleeve outlet transversely corresponds to (or horizontally corresponds to) the position of the annular gap, and the upper and lower width of the valve core outer sleeve outlet is not greater than (preferably smaller than) the upper and lower width of the annular gap. The valve core outlet is transversely corresponding to the position of the valve core outer sleeve outlet (or horizontally corresponding to the position of the valve core outer sleeve outlet), and the maximum up-down width of the valve core outlet is smaller than the up-down width of the valve core outer sleeve outlet.
The lowest point of the lower edge of the valve core outlet is flush with the lower edge of the valve core outer sleeve outlet, or the highest point of the upper edge of the valve core outlet is flush with the upper edge of the valve core outer sleeve outlet, or the highest point of the upper edge of the valve core outlet is lower than the upper edge of the valve core outer sleeve outlet, and the lowest point of the lower edge of the valve core outlet is higher than the lower edge of the valve core outer sleeve outlet.
The upper and lower width of the valve core outlet can be changed linearly, namely, the upper and lower edges of the valve core outlet are inclined straight edges or arc edges, or the upper and lower edges of the valve core outlet are the combination of the inclined straight edges or arc edges and the straight edges, the upper and lower width of the valve core outlet can also be changed stepwise, namely, the upper and lower edges of the valve core outlet are stepped edges, or the upper and lower edges of the valve core outlet are the combination of the stepped edges and the inclined straight edges or arc edges.
Preferably, the maximum flow area of the valve core outlet communicated with the valve core outer sleeve outlet is smaller than the flow area of the valve core cavity communicated with the central through hole.
Preferably, the valve core cavity is internally provided with a valve clack, the valve clack is arranged at the lower end of the valve rod, the valve core is provided with a shaft hole, the valve rod is coaxially positioned in the shaft hole of the valve core, the top end of the valve rod is positioned outside the valve body (upwards extends out of the valve body), and the valve clack and the valve seat form a main sealing pair (opening and closing sealing pair) of the valve.
The valve clack can be composed of a hard valve clack seat and a rubber sealing gasket embedded on the valve clack seat, and also can be composed of the rubber sealing gasket only. The valve clack and the regulating core outlet on the top cover form a sealing pair for opening and closing the valve, so that the valve clack and the regulating core outlet can be conveniently sealed, and the top wall of the top cover can be provided with a conical surface with a gradually-reduced inner diameter from top to bottom.
Preferably, the valve rod is sleeved with a spring, the spring is located in the shaft hole of the valve core, an annular flange extending inwards is arranged at the bottom end of the shaft hole of the valve core, the valve rod is in sliding sealing fit with the inner wall of the annular flange, a clamp spring (or a check ring) is fixedly arranged in the middle of the valve rod, the bottom end of the spring abuts against the annular flange, and the top end of the spring abuts against the clamp spring.
Preferably, a radial inward annular groove is formed in the middle of the valve rod, the clamp spring is horizontally embedded in the annular groove, and the outer edge of the clamp spring protrudes out of the outer wall of the valve rod.
Preferably, a cylindrical spring sleeve and a compression cap are arranged in the shaft hole of the valve core, the compression cap is positioned above the spring sleeve, the spring and the clamp spring are positioned in the spring sleeve, an inward protruding annular flange is arranged at the top end of the spring sleeve, the bottom end of the spring sleeve is propped against the inward protruding annular flange at the bottom end of the shaft hole of the valve core, the compression cap is fixedly connected (for example, in threaded connection) with the top end in the shaft hole of the valve core, the bottom end of the compression cap is propped against the spring sleeve, and a gap is reserved between the top end of the compression cap and the adjusting piece.
Preferably, the regulating element is in an inverted cup shape, the regulating element and the valve core can be connected in a threaded connection mode or in a clamping connection mode, for example, an inward protruding flange (usually an annular flange) is arranged at the bottom end of the regulating element, a groove (usually an annular groove) matched with the flange is formed in the top end of the valve core, the flange on the regulating element is clamped in the groove on the valve core, a plurality of inward protruding protrusions are distributed on the inner wall of the regulating element at intervals along the circumferential direction, clamping grooves matched with the number and the positions of the protrusions are formed in the top end of the valve core, and the protrusions on the regulating element are respectively clamped in the corresponding clamping grooves.
Preferably, the top end of the adjusting member is located outside the valve body.
Preferably, the top of valve body is equipped with the helmet, the helmet is the back cup, the helmet with valve body threaded connection, the top of valve rod supports on the roof in the helmet, the top outer wall of helmet with be equipped with matched with joint structure on the regulating part.
Preferably, the center on the top outer wall of the protective cap is provided with a circular groove, the clamping structure comprises a plurality of inwards protruding protrusions arranged on the groove wall of the circular groove along the circumferential direction, and clamping grooves which are arranged on the axial outer wall of the adjusting piece and correspond to the protrusions in number and positions, when the protective cap is unscrewed from the valve body, the protective cap can be turned upside down, the protrusions on the protective cap are clamped in the corresponding clamping grooves on the adjusting piece, and the valve core can be driven to rotate in the valve core jacket by rotating the protective cap.
The center of the circular groove may be provided with a blind hole into which the tip of the valve rod is inserted. The top wall in the protective cap can also be provided with a blind hole for inserting the top end of the valve rod.
Preferably, the side wall of the protective cap is provided with flow scales along the circumferential direction, when the protective cap is inverted and is matched and clamped with the adjusting piece, the flow scales correspond to different vertical width positions of the valve core outlet, and the corresponding relation between the flow scales and the different vertical width positions of the valve core outlet can be ensured after the protective cap is clamped and matched with the adjusting piece by arranging the protrusions (corresponding clamping grooves) on the protective cap into different widths or arranging adjacent protrusions (corresponding clamping grooves) into different intervals and the like. The flow scale corresponds to different upper and lower width positions of the valve core outlet.
The temperature bulb can be fixedly arranged in the protective cap, and when the protective cap is positively arranged on the valve body, the top end of the valve rod is propped against the temperature bulb.
The beneficial effects of the invention are as follows:
(1) Because the valve core is rotated to change the flow area communicated between the valve core outlet and the valve core outer sleeve outlet to regulate the flow of the valve, and the flow area communicated between the valve core outlet and the valve core outer sleeve outlet is a plane (corresponding to the plane), compared with a traditional heating valve, the flow of the valve is regulated by changing the distance between the valve clack and the valve seat (the flow area is an annular surface), the flow regulation of the valve is more accurate, and after the medium flow of the valve is set through the valve core and the valve core outer sleeve, the flow of the valve can be kept constant.
(2) Because the opening and closing of the valve and the flow regulation are controlled by different parts respectively (the opening and closing of the valve is controlled by a valve rod, the flow regulation is controlled by a valve core), and when the opening and closing of the valve and the flow regulation are controlled, the related parts only do single movement (the valve rod only do axial movement when the valve is opened and closed and the valve core only rotates relative to the valve core jacket when the flow is regulated), compared with the traditional heating valve, the valve rod does axial movement and rotation (simultaneously performs two movements) when the opening and the closing of the heating valve and the flow regulation are performed, the movement form of the related parts is single, the leakage or the failure is difficult to occur, the service life of the valve can be effectively prolonged, the sealing requirements and the technological processing requirements for the related parts can be properly reduced, and the production cost is reduced.
(3) Because the inside and outside structure of helmet sets up, when the helmet is just adorning on the valve body (threaded connection is in on the valve body) can realize opening and close of valve, when the helmet is adorned conversely on the regulating part (joint is in on the regulating part) can realize the flow control of valve, the convenience is to the use and the control of valve.
Drawings
FIG. 1 is a schematic view of the construction of one mode of operation of the invention (the cap being mounted on the valve body);
FIG. 2 is a schematic view of another mode of operation of the invention (the helmet is reversed on the adjustment member);
FIG. 3 is a schematic structural view of the valve core housing of the present invention;
fig. 4 is a schematic structural view of the valve cartridge of the present invention.
Description of the embodiments
All directional indicators (e.g., up, down, top, bottom, inner, outer, etc.) in the embodiments of the present invention are merely used to explain the relative positional relationship, movement conditions, etc. between the components in a certain specific posture (as shown in the drawings), and do not constitute limitations on the actual use direction, and if the specific posture is changed, the directional indicators are correspondingly changed.
Referring to fig. 1-4, the invention discloses an adjustable flow constant temperature air valve, which comprises a valve body 1, wherein a medium inlet (or called an inlet cavity) 2 and a medium outlet (or called an outlet cavity) 3 are arranged on the valve body, a valve seat 4 is arranged in the valve body, the valve seat is horizontally arranged and divides a valve cavity in the valve body into an upper cavity and a lower cavity, the valve seat is provided with a central through hole for communicating the upper cavity and the lower cavity, the lower cavity is communicated with the medium inlet, the upper cavity is communicated with the medium outlet, and a medium channel consisting of the medium inlet, the lower cavity, the upper cavity and the medium outlet is formed in the valve body. The upper cavity is internally provided with a valve core 5 and a valve core jacket 6 which are coaxially sleeved, the valve core jacket is fixedly and hermetically connected (for example, in threaded connection and provided with a proper sealing ring) with the inner wall of the upper cavity, an annular gap (or called an annular cavity) is reserved between the outer wall of the lower part of the valve core jacket and the inner wall of the upper cavity, the annular gap is communicated with the medium outlet, the bottom of the valve core jacket is hermetically connected with the valve seat (the bottom of the valve core jacket can be propped against the valve seat), the valve core jacket is provided with a valve core jacket outlet 7 communicated with the annular gap, the valve core jacket outlet is communicated with the medium outlet through the annular gap, the valve core is coaxially arranged in the valve core jacket, is in rotary sealing fit (provided with a proper sealing ring) with the valve core jacket, so that the valve core can coaxially rotate relative to the valve core jacket, the bottom of the valve core is sealed with the valve seat (the bottom of the valve core can prop against the valve seat), the bottom of the valve core is provided with a core cavity 8 communicated with the central through hole, so that the medium can flow into the valve core through the valve core outlet through the annular gap, and the valve core outlet can flow into the valve core outlet through the annular gap, and the valve core outlet through the annular gap, when the valve core outlet is communicated with the valve core outlet through the valve core outlet, the valve core outlet through the valve core outlet, and the valve core outlet through the valve core case, and the valve core can be communicated with medium outlet through a gradually, thereby adjusting the flow rate of the valve. The top in the case overcoat is equipped with the regulating part 10 that the case is connected, the regulating part with the normal running fit between the inner wall of case overcoat makes the regulating part can rotate for the case overcoat and drive the case rotates together, realizes the regulation to the valve flow.
The valve core outer sleeve outlet is a rectangular opening, the valve core outer sleeve outlet transversely corresponds to the position of the annular gap (or horizontally corresponds to the position of the annular gap), and the upper and lower width of the valve core outer sleeve outlet is not larger (preferably smaller) than the upper and lower width of the annular gap. The valve core outlet is transversely corresponding (or horizontally corresponding) to the position of the valve core outer sleeve outlet, the maximum upper and lower width of the valve core outlet is preferably smaller than the upper and lower width of the valve core outer sleeve outlet, the lowest point of the lower edge of the valve core outlet is flush with the lower edge of the valve core outer sleeve outlet, or the highest point of the upper edge of the valve core outlet is flush with the upper edge of the valve core outer sleeve outlet, or the highest point of the upper edge of the valve core outlet is lower than the upper edge of the valve core outer sleeve outlet, and the lowest point of the lower edge of the valve core outlet is higher than the lower edge of the valve core outer sleeve outlet. The valve is arranged in such a way that the flow setting and adjustment of the valve completely depends on the vertical width change of the valve core outlet, so that the linear adjustment of the valve flow is realized, and the flow adjustment precision is improved.
The upper and lower width of the valve core outlet can be changed linearly, namely, the upper and lower edges of the valve core outlet are inclined straight edges or arc edges, or the upper and lower edges of the valve core outlet are the combination of the inclined straight edges or arc edges and the straight edges, the upper and lower width of the valve core outlet can also be changed stepwise, namely, the upper and lower edges of the valve core outlet are stepped edges, or the upper and lower edges of the valve core outlet are the combination of the stepped edges and the inclined straight edges or arc edges.
Because the valve core is rotated to change the flow area communicated between the valve core outlet and the valve core sleeve outlet to regulate the flow of the valve, and the flow area communicated between the valve core outlet and the valve core sleeve outlet is a plane, compared with a traditional heating valve, the flow of the valve is regulated by changing the distance between the valve clack and the valve seat (the flow area is an annular surface), the flow regulation of the valve is more accurate, and after the medium flow of the valve is set through the valve core and the valve core sleeve, the flow of the valve can be kept constant.
The maximum flow area of the valve core outlet communicated with the valve core outer sleeve outlet is preferably smaller than the flow area of the valve core cavity communicated with the central through hole, and further, the area of the valve core outer sleeve outlet is smaller than the flow area of the valve core cavity communicated with the central through hole. The valve is arranged in such a way, the flow area of the outlet end of the valve core cavity is always smaller than that of the inlet end, and the valve setting flow is regulated by regulating the flow area of the outlet end of the valve core cavity (the flow area of the valve core outlet communicated with the valve core outer sleeve outlet), so that the flow regulation precision is improved.
The valve core cavity is preferably internally provided with a valve clack 11, the valve clack is arranged at the lower end of a valve rod 12, the valve core is provided with a shaft hole, the valve rod is coaxially positioned in the shaft hole of the valve core, and the top end of the valve rod is positioned outside the valve body (upwards extends out of the valve body). The valve clack can be composed of a hard valve clack seat and a rubber sealing gasket embedded on the valve clack seat, and also can be composed of a rubber sealing gasket only, wherein the valve clack and the valve seat form a sealing pair for opening and closing the valve, and the valve rod moves up and down in the shaft hole of the valve core to drive the valve clack to be far away from or close to the valve seat (the close limit position is that the valve clack is tightly sealed with the valve seat), so that the opening and the closing of the valve are realized.
The valve rod is preferably sleeved with a spring 13, the spring is a cylindrical spring and is located in a shaft hole of the valve core, an annular flange extending inwards is arranged at the bottom end of the shaft hole of the valve core, the valve rod is in sliding sealing fit with the inner wall of the annular flange (provided with a proper sealing ring), a clamping spring (or called a check ring) 14 is fixedly arranged in the middle of the valve rod, the bottom end of the spring abuts against the annular flange (provided with a proper gasket), and the top end of the spring abuts against the clamping spring. When downward pressure is applied to the valve rod, the valve rod drives the valve clack to move downwards to seal a central through hole (the clamp spring moves downwards along with the valve rod) on the valve seat, the valve is closed, the clamp spring compresses the spring, when the downward pressure applied to the valve rod is removed, under the thrust action of the spring, the valve rod is pushed by the clamp spring to drive the valve clack to move upwards, and the valve is opened.
The middle part of the valve rod can be provided with a radial inward annular groove, the clamp spring is horizontally embedded in the annular groove, and the outer edge of the clamp spring protrudes out of the outer wall of the valve rod.
The valve is characterized in that a cylindrical spring sleeve 15 and a compression cap 16 are preferably arranged in a shaft hole of the valve core, the compression cap is positioned above the spring sleeve, the spring and the clamp spring are positioned in the spring sleeve, an inward protruding annular flange is arranged at the top end of the spring sleeve, the inner wall of the annular flange is in clearance fit or sliding fit with the valve rod, when the valve is opened, the top surface of the clamp spring is abutted to the bottom surface of the annular flange (at the moment, the spring is provided with or is not provided with precompression), when the valve is closed, a space is reserved between the top surface of the clamp spring and the bottom surface of the annular flange, the bottom end of the spring sleeve is abutted to the annular flange extending inwards from the bottom end of the shaft hole of the valve core, the bottom end of the compression cap is fixedly connected (in threaded connection) to the top end of the shaft hole of the valve core, a proper sealing ring is arranged on the spring sleeve, the top end of the compression cap is abutted to the regulating member or is in clearance between the regulating member, and the inner wall of the compression cap is in clearance fit or sliding fit with the valve rod. The spring sleeve and the compression cap are arranged, so that the upward moving stroke of the valve rod can be limited, the valve rod can move up and down in a set reasonable range, and the valve can be opened and closed.
The regulating element is preferably in an inverted cup shape, the regulating element and the valve core can be connected in a threaded connection mode or in a clamping connection mode, for example, an inward protruding flange (usually an annular flange) is arranged at the bottom end of the regulating element, a groove (usually an annular groove) matched with the flange is formed in the top end of the valve core, the flange on the regulating element is clamped in the groove on the valve core, a plurality of inward protruding protrusions are distributed on the inner wall of the regulating element at intervals along the circumferential direction, clamping grooves matched with the number and the positions of the protrusions are formed in the top end of the valve core, and the protrusions on the regulating element are respectively clamped in the corresponding clamping grooves. The top end of the adjusting member is preferably located outside the valve body, i.e. the top end of the adjusting member protrudes upwards out of the valve body. The valve is arranged in such a way, the adjusting piece can be rotated outside the valve body through a tool matched with the adjusting piece, the valve core is driven to rotate in the valve core jacket through the adjusting piece, the overflow area of the valve core outlet communicated with the valve core jacket outlet is changed, and the flow of the valve is adjusted. The center of the adjusting piece is provided with a through hole through which the valve rod can pass.
Because the opening and closing of the valve and the flow regulation are controlled by different parts respectively (the opening and closing of the valve is controlled by a valve rod, the flow regulation is controlled by a valve core), and when the opening and closing of the valve and the flow regulation are controlled, the related parts only do single movement (the valve rod only do axial movement when the valve is opened and closed and the valve core only rotates relative to the valve core jacket when the flow is regulated), compared with the traditional heating valve, the valve rod does axial movement and rotation (simultaneously performs two movements) when the opening and the closing of the heating valve and the flow regulation are performed, the movement form of the related parts is single, the leakage or the failure is difficult to occur, the service life of the valve can be effectively prolonged, the sealing requirements and the technological processing requirements for the related parts can be properly reduced, and the production cost is reduced.
The top of valve body is preferably equipped with the helmet 17, the helmet is the fall cup, the helmet with valve body threaded connection, the top of valve rod supports on the roof in the helmet, so set up, through rotating on the valve body the helmet can realize opening and close of valve, when rotatory the helmet makes it for the valve body moves down (normally forward rotation), the helmet promotes downwards the valve rod, and the valve is closed, when rotatory the helmet makes it for the valve body moves up (normally reverse rotation), the roof in the helmet with the interval between the top of valve body grow, the valve rod is in the thrust effect of spring is upwards moved, and the valve is opened.
The outer wall of the top end of the protective cap and the adjusting piece are preferably provided with a matched clamping structure. So set up, when will the helmet is followed after unscrewing on the valve body, can will the helmet is turned over, then with the regulating part passes through joint structure joint rotates the helmet can realize the flow control of valve, from this, works as the helmet is just adorning can realize opening and close of valve when on the valve body, works as the helmet is adorned in the time of can realizing the flow control of valve on the regulating part, the convenience is to the use and the control of valve.
A preferred implementation mode of the clamping structure can be as follows: the center on the top outer wall of the protective cap is provided with a circular groove, a plurality of inwards-protruding bulges are arranged on the groove wall of the circular groove along the circumferential direction, and clamping grooves corresponding to the bulges in number and positions are arranged on the axial outer wall of the adjusting piece. When the protective cap is unscrewed from the valve body, the protective cap is turned upside down, so that all the protrusions on the protective cap are clamped in the corresponding clamping grooves on the adjusting piece, and the valve core can be driven to rotate in the valve core outer sleeve through the adjusting piece by rotating the protective cap.
The center of the circular groove may be provided with a blind hole into which the tip of the valve rod is inserted. The top wall in the protective cap can also be provided with a blind hole for inserting the top end of the valve rod.
The side wall of the protective cap can be provided with flow scales (or flow gear scales) along the circumferential direction, when the protective cap is inverted and is matched and clamped with the regulating piece, the flow scales correspond to different upper and lower width positions of the valve core outlet, the circumferential angle of the protective cap for driving the regulating piece to rotate can be determined according to the flow scales on the protective cap, the flow of the valve is regulated, and the control is convenient. The corresponding relation between the flow scale and the position of the valve core outlet with different upper and lower widths can be ensured by arranging the protrusions (and the corresponding clamping grooves) on the protective cap with different widths or arranging the adjacent protrusions (and the corresponding clamping grooves) with different intervals and the like.
The temperature bulb can be fixedly arranged in the protective cap, when the protective cap is positively arranged on the valve body, the top end of the valve rod is propped against the temperature bulb, and the temperature bulb is arranged in such a way that when the protective cap is positively arranged on the valve body (after the protective cap is reversely arranged on the regulating piece to regulate the flow of the valve, the valve is positively arranged on the valve body in a detachable way), and the temperature bulb can control the valve rod to move up and down according to the room temperature, so that the valve can be automatically opened and closed according to the room temperature.
The preferred and optional technical means disclosed in the invention may be combined arbitrarily to form a plurality of different technical schemes, except for the specific description and the further limitation that one preferred or optional technical means is another technical means.

Claims (10)

1. The utility model provides an adjustable constant temperature air valve, includes the valve body, be equipped with medium import and medium export on the valve body, its characterized in that be equipped with the disk seat in the valve body, the disk seat level sets up, will the valve pocket in the valve body divide into upper chamber and lower chamber, the disk seat is equipped with and is used for the intercommunication the upper chamber with the central through-hole of lower chamber, the lower chamber with medium import intercommunication, be equipped with case and case overcoat in the upper chamber, the case overcoat with fixed sealing connection between the inner wall of upper chamber, its lower part outer wall with leave annular gap between the inner wall of upper chamber, annular gap with medium export intercommunication, the case overcoat's bottom with seal between the disk seat, be equipped with on the case overcoat with the case overcoat export of annular gap intercommunication, the case coaxial sets up in the case overcoat, with the rotation sealing fit between the case overcoat, the bottom of case with seal between the disk seat, the bottom of case be equipped with the case chamber and case overcoat intercommunication, be equipped with be used for the intercommunication the case overcoat with the annular gap between the export the case's the outer wall of case, the width of case is equipped with between the case and the case of case overcoat of case.
2. The variable flow constant temperature air valve as claimed in claim 1, wherein a maximum flow area of the valve core outlet communicated with the valve core outer sleeve outlet is smaller than a flow area of the valve core cavity communicated with the central through hole.
3. The flow-adjustable constant-temperature air valve as claimed in claim 2, wherein a valve clack is arranged in the valve core cavity, the valve clack is arranged at the lower end of a valve rod, the valve core is provided with a shaft hole, the valve rod is coaxially arranged in the shaft hole of the valve core, and the top end of the valve rod is arranged outside the valve body.
4. The flow-adjustable constant-temperature air valve as claimed in claim 3, wherein a spring is sleeved on the valve rod, the spring is positioned in the shaft hole of the valve core, an annular flange extending inwards is arranged at the bottom end of the shaft hole of the valve core, the valve rod is in sliding sealing fit with the inner wall of the annular flange, a clamp spring is fixedly arranged in the middle of the valve rod, the bottom end of the spring is propped against the annular flange, and the top end of the spring is propped against the clamp spring.
5. The flow-adjustable constant-temperature air valve as claimed in claim 4, wherein a radial inward annular groove is formed in the middle of the valve rod, the clamp spring is horizontally embedded in the annular groove, and the outer edge of the clamp spring protrudes out of the outer wall of the valve rod.
6. The adjustable flow constant temperature air valve as in claim 5, wherein a cylindrical spring sleeve and a compression cap are arranged in the shaft hole of the valve core, the compression cap is positioned above the spring sleeve, the spring and the clamp spring are positioned in the spring sleeve, an inward protruding annular flange is arranged at the top end of the spring sleeve, the bottom end of the spring sleeve is propped against the annular flange extending inwards at the bottom end of the shaft hole of the valve core, the compression cap is fixedly connected to the top end in the shaft hole of the valve core, the bottom end of the compression cap is propped against the spring sleeve, and a gap is reserved between the top end of the compression cap and the adjusting piece.
7. The variable flow thermostatic valve of any of claims 1-6 wherein the top end of the regulator is located outside the valve body.
8. The flow-adjustable constant-temperature air valve as claimed in claim 7, wherein a protective cap is arranged at the top end of the valve body, the protective cap is in an inverted cup shape, the protective cap is in threaded connection with the valve body, the top end of the valve rod is propped against the top wall in the protective cap, and a matched clamping structure is arranged on the outer wall of the top end of the protective cap and the adjusting piece.
9. The valve as set forth in claim 8, wherein the center of the outer wall of the top end of the cap is provided with a circular groove, and the engaging structure comprises a plurality of inwardly protruding protrusions provided on the wall of the circular groove in the circumferential direction, and a plurality of engaging grooves provided on the outer wall of the adjusting member in the axial direction corresponding to the number and positions of the protrusions.
10. The flow-adjustable constant-temperature air valve as claimed in claim 9, wherein flow scales are circumferentially arranged on the side wall of the protective cap, and the flow scales correspond to different upper and lower width positions of the valve core outlet.
CN202310497333.9A 2023-05-05 2023-05-05 Adjustable flow constant temperature heating valve Pending CN116357761A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310497333.9A CN116357761A (en) 2023-05-05 2023-05-05 Adjustable flow constant temperature heating valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310497333.9A CN116357761A (en) 2023-05-05 2023-05-05 Adjustable flow constant temperature heating valve

Publications (1)

Publication Number Publication Date
CN116357761A true CN116357761A (en) 2023-06-30

Family

ID=86920388

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310497333.9A Pending CN116357761A (en) 2023-05-05 2023-05-05 Adjustable flow constant temperature heating valve

Country Status (1)

Country Link
CN (1) CN116357761A (en)

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