The invention relates to valves, and in particular to the control valve intended for installation on pipelines, heating systems. Valve for radiator includes a housing, bearing axial inlet zone and the valve seat. The saddle together with moving in the axial direction of the locking element forms a throttle area. The case is made on the periphery of the exhaust hole, so that a discharge space which gives the deviation of the flow in the radial direction. The discharge space surrounded by the sleeve. The sleeve has an outlet. The size of the outlet can be adjusted by turning the sleeve. Between the throttle area and the discharge space is a channel. The cross-section of recent increases in the flow direction and is limited adjacent to the outside of the valve seat of the cylindrical outer wall and adjacent to the shut-off element inner wall. The inner wall has a slope relative to the axis in the flow direction and formed by the profiled element connected to the locking element. The invention is directed to a significant reduction in noise. 9 C.p. f-crystals, 6 ill. Us the existence of the axial inlet zone and the valve seat, which, together with a movable in the axial direction of the locking element forms a throttle area, and has performed at the periphery of the exhaust hole, so that a discharge space which gives the deviation of the flow in the radial direction, and the discharge space is surrounded by a sleeve having outlet openings, the size of which can be adjusted by turning the sleeve.The valve should operate with the least possible noise. This requirement applies particularly to valves of the radiators. Although these valves are not affected by cavitation noise, generate noise from the stream, which is intensified by the heat sink, especially when the valve is installed close to the radiator or directly in it. Noises occur in the valves refrigerators and other regulating valves.In the above-described radiator valve (DE 4402752 A1) noise reduction is achieved due to the fact that the water after passing through the throttle region is rejected twice or more times. This is due to the position of the discharge space defined by the radial outlet holes, in the immediate vicinity of the valve seat or under the seat. In t turbulence and the associated noise.The invention is directed to providing a new method of noise reduction in a valve of the type indicated above.According to the invention this task is solved in that between the throttle area and the discharge space is the channel cross-section which increases in the flow direction which is adjacent to the outside of the valve seat of the cylindrical outer wall and adjacent to the shut-off element inner wall, which has a slope relative to the axis in the flow direction and formed by the profiled element connected to the locking element.In this design flow rate flowing through the channel of fluid, especially water, inevitably decreases, and the decrease in flow velocity occurs at a short distance immediately after the throttle area. The result is a significant reduction in noise, as the main factor for its occurrence is high speed stream. The profiled element can be used to modify the channel of any given shape.Offer the valve can be installed in the radiator without any structural modifications due to the good noise suppression. Achieved a noise reduction of 5 to 6 dBa at store eliminated the danger of destructive noise as a result of their gain.Canal cross-section is preferably increases smoothly or substantially smoothly. Therefore, there is a continuous decrease in the flow rate that prevents the noise.In the simplest case, the inclined wall has a conical shape, wherein the flow rate decreases in accordance with a quadratic function.In an alternative embodiment, which is also expedient that the angle of inclination of the inclined wall relative to the axis increases in the flow direction, resulting in its speed can be reduced even more.The locking element preferably is a plate, on the rear side of which is profiled element.In another preferred embodiment, the locking element may be an o-ring carried by the profiled element.In many cases, it is advisable that the profiled element is made of plastic. Therefore, the profiled element can be manufactured in mass production, for example by injection molding or other methods.To simplify the design may be provided made of one piece element, surrounding the inlet zone, carrying the saddle is the capacity of the valve body, for example, by the reflection of the edge.In a preferred embodiment of the invention the element is made as one part, surrounds the discharge space, continues and this space has a fastening section for fastening to the other elements of the valve. Made in a single piece element has multiple functions and can easily attach this site to other elements of the valve, for example, by threads or by means of glue.Particularly good results are obtained when the distance between the valve seat and an outlet hole at least twice the maximum height of the valve lift.Additional noise reduction is achieved if the valve seat and/or the locking element, and/or walls have rounded edges and corners.Hereinafter the invention is described in more detail by the example of the preferred variants of its implementation with reference to the drawings, where Fig.1 depicts a partial longitudinal section of a plug valve of the radiator according to the invention; Fig. 2-5 - a longitudinal incision of valve parts including throttle region, according to the other four variants of carrying out the invention and Fig.6 is a longitudinal section of the valve of the refrigerator, vlycha install the radiator (see DE 4402752 A1). He has a saddle 2 valve with internal rounded edges and rounded outer corner. The saddle 2 valve interacts with the locking element 3, which can move the pin 5 in the direction of the arrow And through the stem 4 of the valve. Water for heating will be supplied by the arrow 6 in axial inlet zone 7, then passes through the throttle region 8 between the seat 2 of the valve and shut-off element 3 and passes through the channel 9, located behind the locking element 3, into the exhaust space 10 defined by the exhaust hole 11 made in the periphery, while the water flow is deflected in the discharge space 10 in the radial direction and flows in the direction of the arrow 12.Channel 9, located behind the locking element is limited to a cylindrical outer wall 13 and the conical inner wall 14 has a circular cross-section, which continuously increases in the direction of flow, causing the flow velocity and, accordingly, the resulting noise is significantly reduced.Plug valve 1 has a body 15, the bottom of which is connected by the reflection of the edge element 16 containing the inlet zone 7, the saddle 2 valve and a cylindrical outer wall 13 of the channel 9. Konekesko materials, for example brass. Profiled element 17 is located on the rear side of the locking element 3, made in the form of a plate.In the housing 15 of the plug valve is mounting sleeve 18 having one or more spaced known holes. In combination with the exhaust hole 11 in the housing 15 these holes allow you to adjust the output cross-section. For this purpose, the sleeve 18 is connected to the installation head 20 through the driving element 19.The distance between the seat 2 of the valve and the outlet 10 is such that even at maximum lifting height of the locking element 3 portion of the channel 9 remains in effect. Therefore, it is preferable that this distance was at least twice the maximum height of the valve lift.In an embodiment of the invention depicted in Fig.2, the locking element 21 is made in the form of a sealing ring carried by the profiled element 22, which forms an inner wall 23 of the channel 24 having an approximately parabolic shape. Profiled element 22 made in one piece with the stem 25 of the valve. All other elements of the valve are the same as in Fig.1.An embodiment of the invention depicted in Fig.3, Hoteles ring, it has a conical shape, forming an expanding wall, bounding the channel 27. Made in a single piece element 28 surrounds the inlet zone, carries the valve seat and forms the outer wall of the channel 27. He also surrounds the discharge space, and it continues past him to the fixing section 29, which serves for fastening to the other elements of the valve. The mounting section 29 may be made in the form of screw threads, adhesive, etc.,An embodiment of the invention depicted in Fig.4, differs from the variant shown in Fig.1, so that the profiled element 30, bounding the channel 31 of the conical wall 32, made in one piece with the stem 33 of the valve. The lower part of the housing 34 ends insertable part forming the seat 36 of the valve and the inlet channel 37.In an embodiment of the invention depicted in Fig.5, the channel 38 is limited to a conical outer wall 39, which follows the saddle valve 40, and a cylindrical inner wall 41 formed by a profiled element 42, a bearing ring closing element 43.In an embodiment of the invention depicted in Fig.6, the saddle valve 44 is turned to the inlet zone 45 and the stem 46 of the valve passes through the saddle 44. Channel 47 is limited by an outer wall 48, TOCOM valve 46. The locking element 50 has the shape of a plate.In all the embodiments, the flow rate of heating water increases in the throttle region 8 and again decreases in channel 9 (see Fig.1), located in this region, so that the flow of water arising after its deviation from the valve, does not create any disruptive noise.
Claims1. Valve for a radiator, comprising a housing, bearing axial inlet zone and the valve seat, which, together with a movable in the axial direction of the locking element forms a throttle area, and has performed at the periphery of the exhaust hole, so that a discharge space which gives the deviation of the flow in the radial direction, and the discharge space is surrounded by a sleeve having outlet openings, the size of which can be adjusted by turning the sleeve, characterized in that between the throttle area (8) and the discharge space (10) is the channel(9; 24; 27; 31), cross-section which increases in the flow direction and which is limited adjacent to the outside of the seat (2; 36) of the valve cylindrical outer wall (13) and adjacent to the shut-off element of the internal degree is entom (17; 22; 26; 30) connected to the locking element (3).2. The valve p. 1, characterized in that the inclined wall (14; 32) has a conical shape.3. The valve p. 1, characterized in that the angle of inclination of the inclined wall (23) with respect to an axis (A) increases in the direction of flow.4. Valve according to one of paragraphs.1-3, characterized in that the closing element (3) is a plate, on the rear side of which is shaped element (17; 30).5. Valve according to one of paragraphs.1-3, characterized in that the locking element (21) is a sealing ring carried by the profiled element (22; 26).6. Valve according to one of paragraphs.1-5, characterized in that the profiled element (17; 22; 26; 30) is made of plastic.7. Valve according to one of paragraphs.1-6, characterized in that it is made in a single piece element (16; 28) surrounds the inlet zone (7), is a saddle (2) of the valve and forms the outer wall (13) of the channel (9).8. The valve p. 7, characterized in that it is made in a single piece element (28) surrounds the discharge space, continues and this space has a fastening section (29) for attachment to other elements of the valve.9. Valve according to one of paragraphs.1-8, characterized in that the distance between Ana.10. Valve according to any one of paragraphs.1-9, characterized in that the seat (2) valve and/or the locking element, and/or walls have rounded edges and corners.
FIELD: power engineering.
SUBSTANCE: control valve has steam box with a lid.
EFFECT: enhanced reliability.
FIELD: heat supply systems.
SUBSTANCE: radiator valve has valve with a seat which forms an opening closed with the valving member which abuts against the seat in the closed position along the closing line which consists of sections which form closed broken line and has at least one radial section projecting from the larger radius toward the center of the opening. The outer edge of the closing line are provided with hollows which form a free space in the closed position of the valving member.
EFFECT: enhanced flow rate through the valve.
10 cl, 2 dwg
FIELD: arrangements for cutting-off.
SUBSTANCE: valve has housing. The housing receives heat-reflecting member which moves between the first and second position. In the first position, the heat-reflecting member overlaps open sealing surface of the soft seal. In the second position, the heat-reflecting member does not close the open sealing surface of the soft seal and allows the open sealing surface of the soft seal to be in a gas-tight contact with the sealing surface of the closure member pressed to it. The heat-reflecting member has internal cooling circuit and made of a ring. The ring is mounted for rotation around the axis of rotation between the first and second position. The axis of rotation of the heat-reflecting member is parallel to the central axis and at a distance from the seat side.
EFFECT: enhanced efficiency at high temperatures.
FIELD: manufacture of fittings.
SUBSTANCE: proposed valve has body with inlet, outlet and main holes and regulating member made in form of piston connected with rod; piston moves in main hole which is coaxial with it. Mounted in end bore of body coaxially to piston is permeable member made in form of ring consisting of several washers with diameter of inner hole equal to diameter of main hole. Said washers are provided with tight circular gasket whose diameter is equal to external diameter; these gaskets are laid in between washers; diameter of their holes is lesser than diameter of piston by value of interference of joint "piston-gasket hole". Washers have different porosity, average diameter of pores and hydraulic resistance. Average diameter of pores reduces in axial direction towards end bore of body. Washers are made from elastic or flexible material, metal-reinforced rubber, for example.
EFFECT: extended functional capabilities; facilitated procedure of manufacture.
3 cl, 1 dwg
FIELD: manufacture of fittings and adjusting units for piping systems.
SUBSTANCE: proposed valve has body with inlet, outlet and main holes; body is provided with adjusting member made in form of piston moving coaxially in main hole of body. Outer surface of piston and inner surface of main hole are embossed in form of radial circular fins or honeycombs.
EFFECT: reduction of erosion wear; improved service characteristics in contaminated media containing solid particles.
5 cl, 10 dwg
FIELD: control of WC flushing valves.
SUBSTANCE: proposed method of control of WC flushing valve in vacuum collector system includes opening and closing of flushing valve by means of control unit at rate ensuring opening and closing time of 0.25 and 0.4 s respectively. Device for control of WC flushing valve includes at least three working valves. Device and flushing valve are actuated by vacuum created in collector system. Said working valves may return to initial position by means of common piston-type rod made in form of cam which is actuated in its turn by piston in cylindrical chamber. First valve actuated by starting unit brings cylindrical chamber in communication with vacuum source in second valve actuated by cam which brings vacuum source in collector system in communication with drive unit of flushing valve and third valve brings flushing ring or similar unit with water source through pipes and passages.
EFFECT: enhanced efficiency.
8 cl, 7 dwg
SUBSTANCE: bellows valve comprises housing, valving member, and rod sealed with a bellows. The bellows is connected with the housing through the bellows bushing. The bushing is provided with elongated openings of the same lengths. The openings are lengthened along the axis of the rod. The pin is mounted in the rod perpendicular to its axis. The ends of the pin are set into the openings. The elongated openings are made of grooves and arranged from the side of the bottom face of the bellows bushing. The bellows bushing embraces the bellows and the junction of the rod with the valving member shifted with respect to the bellows level by the length of the elongated grooves. The top walls of the elongated grooves restrict the stroke of the valve in the "open" position. The pin is mounted at 90° with respect to the axis of the branch pipes of the valve in the openings in the valving member and in the opening in the rod which is coincident with it. The opening in the rod is elongated in the direction of the bellows along the axis of the rod to define a guaranteed space when the pin is inside it.
EFFECT: enhanced reliability.