Inserted radiator valve with supplying or discharging connecting pipe
SUBSTANCE: inserted radiator valve with connecting member comprises housing and seal zone for sealing the region of the connection with the supplying or discharging connecting pipe. The seal zone is made of the first radial inner seal that acts inside and the second radial outer seal that acts from outside. The first seal and the second seal are interconnected through the opening provided in the housing.
EFFECT: enhanced functional capabilities.
10 cl, 3 dwg
The invention relates to a push-in radiator valve with connection element having a housing and a seal for sealing the junction with the inlet or outlet fitting.
Push-in radiator valve of this kind is known from DE 3600130 A1. Here, the connecting element is inserted into the inlet or outlet fitting. The o-ring is placed between the connecting element and fitting, it prevents the passage of fluid through the sealing fitting and the fitting.
Another solution is disclosed in DE 20020024 U1. Here, the connecting element is placed on the fitting on the outside. When this o-ring that forms a seal which is placed in the inside groove. It also sealed the connection area between the fitting and the connecting element.
Usually determine from the outside, what type of seal is selected in the radiator valve, it is impossible. This leads to problems, for example, during repair work on the replacement plug valve or its parts. In such cases, the worker is forced to keep ready a large number of spare parts.
The basis of the invention is to increase the versatility of this design.
This task in the case of plug-in radiator valve, type mentioned at the beginning, resh is on due to the fact, the seal consists of a first, radially inner, seal, acting on the inside, and a second, radially outer, seal, acting on the outside.
This plug valve can be used in many cases. The connecting element can push in fitting. In this case, the second seal works because it acts radially outward. In another embodiment, the connecting element can stick to the fitting on the outside, and begins to work the first seal acting radially inwards. Thus, the number of required spare parts almost halved, and the employee is in the process of repair is able to repair a large part of the used vehicle.
Preferably the inner diameter of the first seal should be different from the outer diameter of the second seal. Thanks to one and the same plug valve can be used with the fittings of different diameters. If we are talking about a large diameter, then use a second seal acting radially outward.
In this case, the connecting element is inserted into the fitting. If we are talking about fitting a smaller diameter, the connecting element is placed on the fitting on the outside, and begins to work the first seal acting radially inwards.
Preferably per the first and second seals must be connected to each other through the body. Thus, simply implement the fixing seals to the housing with a sufficient holding force. In this case, both seals not only seal the various diameters of the fittings, but each of the seals at the same time serves as a retainer for the second seal. The connection through the body to carry out is easy, because the body is made of several distributed around the circumference of the holes, and through these holes you can create a connection between the first and second seal.
Preferably the first and second seals are made on the body by way of injection molding. This is a relatively simple way. The casing is put in a form for casting. After this method of injection molding simultaneously produced and combined with the housing first and second seal. Due to the molding receive the connection, the strength of which is sufficient for the connecting element can be inserted or put on the fitting without separation of the seal from the case.
Preferably the housing is made as a molded plastic product. You can choose a plastic molding, the material from which both seals will be well to cast. In this case, the manufacture of the connecting element can be made in two successive process of casting for the pressure, that is, the production can largely be automated.
It is especially preferred that the seals were made of a soft elastomer material with rubber elasticity. In principle, the seals are only statically, i.e. they are practically not subjected to dynamic loads. Therefore, the seal may be relatively soft, their sizes are chosen solely with regard to the problem of sealing. Such seals are capable of sealing the inner or outer surface of the fitting even with small irregularities.
Preferably the first and second seal placed on the body with an offset along the axis relative to each other. This design has the advantage that the first seal seals the cylindrical fitting relatively small diameter, and a second seal at the same time seals the fitting relatively large diameter. In addition, the forces acting on each seal are independent from each other, which allows independent selection.
The connection between the first and second seal preferably should have a jumper located parallel to the axis of the housing. This jumper allows to some extent to pass efforts stretching between the first and second seal, so change state the seal, which in the axial direction is located farther from the end of the housing, when the connection of the connecting element with fitting one should not fear. This seal is firmly held by the second seal and the bridge, which runs parallel to the axis.
Preferably both the first and second seal must have a valid case in the axial direction of the supporting edge, which creates a force opposite to the force acting on the seal when putting. Thus, in the case of each seal has a recess or a protrusion, which together form located on the circle of the collar, on which is placed a reference edge. If the connecting element pull on the fitting or vidvigayt it, this seal is, of course, there are forces for which there is a risk that the seal is moved relative to the coupling element. However, thanks to the support edge is a risk that the seal is moved relative to the coupling element, is minimized.
Preferably on the same side of the first seal, which is opposite the base edge, there should be no support. This facilitates manufacture of the valve, the manufacture of the body much easier.
Preferably the casing is placed a valve seat that is performed on the body of the method is om die casting. In this case, as the valve seat can be used by the connecting element. Casting material, which is different from the material body, can be relatively accurately to make a saddle in accordance with defined requirements.
Especially preferably, the valve seat and both seals were made of the same material. This simplifies the production. Both the seal and the valve seat can be made within a single operation.
Hereinafter the invention is described in more detail by the example of the preferred variants of the invention, the description is accompanied by drawings. While the drawings depict the following:
Figure 1 is a schematic cross-section push-in radiator valve with connection element.
Figure 2 - the second variant of the coupling element.
Figure 3 is the third version of the connecting element.
Figure 1 shows the push-in radiator valve 1 with a housing 2 in which the plunger 3 valve 4 shutter valve.
The shutter 4 interacts with the seat 5 of the valve seat 5 of the valve is formed on the connecting element 6.
The bolt 4 through the opening spring 7 presses against the seat 5 of the valve. In the closing direction operates the drive shaft 9. The drive shaft 9 by means of actuators (not shown here) may in pain the she or lesser degree to enter into the housing 2, in order to adjust the gap between the shutter 4 and the seat 5 of the valve.
The housing 2 has a discharge nozzle 11, which can be equipped with mounting thread 12.
The connecting element 6 is installed in the fitting 10, which is shown in phantom line. In the connecting element 6 has a through hole 13, which passes from the inlet 14 to the seat 5 of the valve.
In an alternative implementation of the connecting element 6 can be mounted to the outside of the fitting 15, which is shown by the dashed line. In this case, the fitting 15 is inserted into the inlet 14, and at the same time and in the through hole 13.
In the place where the connecting element 6 is attached to the fitting 15 (fitting smaller diameter), provided the first seal 16, which in the radial direction is an internal seal valve, i.e. it is attached externally to the wall of the fitting 15.
Offset along the Central axis 17 of the connecting element 6 and the first seal 16 in the valve made the second seal 18, which in the radial direction is outside. If the connecting element 6 is inserted into the socket 10 of larger diameter, the seal 18 is adjacent to the inner wall of the fitting.
Thus, both seals 16 and 18 form a seal composed of two seals. The inner diameter of the first seal 16 significant is considerable less than the external diameter of the second seal 18. Due to this, the connecting element 6 can be used either to seal the tube of larger internal diameter that matches the outer diameter of the second seal 18, or for sealing pipes of smaller diameter, the outer diameter of which corresponds to the inner diameter of the first seal 16.
In the connecting element 6 has a housing 19 made of capable of molding plastics. Thus, the housing 19 is a cast product. On the housing 19 by way of injection molding is performed by two seals 16 and 18. Both seals 16 and 18 are made of a soft elastomer, which has elasticity, i.e. this material is also capable of casting under pressure.
For the manufacture of the sealing body 19 is placed in proper form for molding, and then by molding the elastomeric material to form a seal 16 and 18.
In the field of seals 16 and 18 in the casing is made of several distributed around the circumference of the holes through which the seals 16 and 18 are interconnected. This connection comprises a crosspiece 20, which essentially runs parallel to the axis 17. Since the load acting on the seals 16 and 18 when installed in the socket 10 or the putting on the nipple 15, chiefly parallel to the axis 17, jumpers 20 helps keep TP the deposits 16 and 18 in the housing 19.
In addition, the housing 19 has a first control edge 21 for the first seal and the second control edge 22 to the second seal. The supporting edges 21 and 22 adjacent the seals 16 and 18, thereby creating an additional barrier to the shift of the seals 16 and 18 relative to the housing 19 of the connecting element when installing or handling the coupling element 6 in the nozzle 10 or the nozzle 15. Both the reference edges 21 and 22 are designed in such a way that the housing 19 and the seal 16 and 18 pass each other without forming steps.
On the contrary, from the inlet 14 is no support for the seal 16 is not provided. Here the seal 16 to hold the second seal 18 via jumper wires 20. For the second seal 18 also do not need any specific steps. This seal is fixed by the recess 23 in the housing 19 and is not shown here, parts of the casing 19 between the holes, through which are connected to each other seals 16 and 18.
Figure 2 shows the design of the connecting element 6, part numbers here are the same as in figure 1.
In contrast to the design shown in figure 1, here the first seal 16 and the second seal 18 in the axial direction are on the same level. They are formed by two rings connected to each other by crosspieces 24, pohodami the through holes 25 in the housing 19 of the connecting element 6. A longitudinal section of both seals 16 and 18 are in the form of rivets.
Figure 3 shows another variant of the design of the connecting element 6. This design is different from the version presented in figure 1, so that the upper end of the body 19 of the seat 5 of the valve is placed in a support 25 of the valve seat. The support 25 of the valve seat are made from the same elastic material as both seals 16 and 18. It is made in the housing 19 by casting under pressure within one working step together with the seals 16 and 18.
1. Push-in radiator valve with connection element having a housing and a seal for sealing the junction with the inlet or outlet fitting, characterized in that the seal comprises a first, radially inner seal (16), the current inside, and the second, radially outer seal (18)acting on the outside, and the first seal (16) and a second seal (18) are connected to each other through holes (25) in the housing (19).
2. The valve according to claim 1, characterized in that the inner diameter of the first seal (16) differs from the outer diameter of the second seal (18).
3. The valve according to claim 1, characterized in that the first seal (16) and a second seal (18) is made on the housing (19) by way of injection molding.
4. The valve according to claim 3, characterized in that orpus (19) is made as a molded plastic product.
5. The valve according to claim 4, characterized in that the seal (16) and (18) are made of a soft elastomer material with rubber elasticity.
6. Valve according to any one of claims 1 to 5, characterized in that the first seal (16) and a second seal (18) is placed on the housing (19) with an offset along the axis relative to each other.
7. The valve according to claim 6, characterized in that the connection between the first seal (16) and a second seal (18) has a crosspiece (20)located parallel to the axis of the housing.
8. The valve according to claim 1, characterized in that the first seal (16)and a second seal (18) in the housing (19) have the support edge (21, 22), which creates a force opposite to the force acting on the seal when it is handling.
9. The valve according to claim 1, characterized in that the casing (19) placed the saddle (5) valve, made on the body by casting under pressure.
10. The valve according to claim 9, characterized in that the seat (5) of the valve and both seals (16, 18) are made of the same material.
FIELD: heat supply systems.
SUBSTANCE: invention relates to dispatcher control and servicing of centralized heat supply system with great number of local (peripheral) units. Proposed system contains central heat-generating unit to supply great number of local units with hat primary liquid. Each local unit includes heat exchanger and pipeline network. Pipeline network includes supply pipeline to transfer primary liquid from heat-generating unit into each local unit. Each local unit is connected with supply pipeline and is made for receiving primary liquid through primary side of heat exchanger designed to transfer heat of secondary liquid which flows through secondary side of heat exchanger. Each local unit includes first devices made for obtaining at least one primary parameter which is related with efficiency of heat transfer. Each local unit includes first communication device which is made for transmission of instantaneous value of first parameter into second device of communication system. System includes second devices interacting with second communication device and made for revealing local unit servicing of which is most required depending on instantaneous value of first parameter.
EFFECT: improved checking of efficiency of centralized heat supply system.
34 cl, 2 dwg
FIELD: heat supply systems.
SUBSTANCE: method comprises supplying fluid from the additional collector interposed between the fluid source and the system of the auxiliary supplying collector. The supplying auxiliary collector is made of cylindrical dropping supplying device with inlet port, outlet port, and freely moving plunger that can close the inlet port providing small passage for outflow. The heating system is connected with the source of fluid under pressure through the dropping device.
EFFECT: expanded functional capabilities.
13 cl, 1 dwg
FIELD: heating plants.
SUBSTANCE: heating plant system has central unit 1 for producing heat and providing hot primary fluid, set of local units 5 any of which has heat exchange device 13, 14 and circuit of pipelines 2, 2' drawn inside circulation system from unit 1. Any local unit intends for getting hot primary fluid through unit 13, 14 of heat exchanger. First and second local units 5 have corresponding control 27. Control unit has first aid 17, 21, 27, 29-32, 33-40, 62 and 63 for providing at least one parameter relating to need of corresponding local unit 5 in hot primary fluid. Second aid 16 performs operation of corresponding local unit 5. Second aid has at least member 25, 26 for acting on flow by hot primary fluid through local unit 5. Local unit 5 has first secondary circulation system intended for heating. Heat exchanger unit has second heat exchanger 14 for second secondary circulation system 12 for producing hot water. Control unit 27 has communication device 50 providing info transmission on mentioned parameter 17, 21, 27, 29-32, 33-40, 62, 63 from at least second local unit to first local unit 5. Control unit 27 of first local unit 5 intends for controlling operation of local unit 5 correspondingly to parameter relating to second local unit 5. There are also descriptions of local unit of heating plant system, control unit for local unit of heating plant system and method of operation of heating plant system.
EFFECT: improved efficiency of control of heating plant system.
38 cl, 3 dwg
SUBSTANCE: device has indicator panels which number is equal to time period of indication.
EFFECT: simplified design.
13 cl, 1 dwg
SUBSTANCE: ball cock comprises housing and axially aligned inlet branch pipe and outlet branch pipe. The branch pipes are connected with the nipple provided with outer ring projection. The valving member is mounted in seats and connected with the spindle. The mating surfaces of the branch pipe and nipple are conical or spherical. The nipple is embraced by the flange for permitting contact of its face with the face of nipple projection. The flange has openings for connecting member. Both of the flanges are interconnected by means of tie rods passing through the openings.
EFFECT: enhanced reliability.
1 cl, 1 dwg
FIELD: the invention refers to stop valve particularly to the constructions of ball flanged cocks.
SUBSTANCE: it is used in the system of pipelines transporting liquid and gaseous aggressive mediums. A ball cock has a housing with a socket and a spherical cork installed in it. This cork is connected with the rod. On the rod there are a press-on bush and a packing seal. On the butt-ends of the housing and of the socket coming into contact with the cork packing rings are installed. Between the body and the socket there is a packing. The housing has a boring with a cylindrical and conic surfaces. On the butt-end of the socket cylindrical surfaces are fulfilled. The packing has in itself a one-sided wedge and a cylinder. This packing is located in the housing boring and is attached with its cylindrical and conic surfaces and with the cylindrical surfaces of the socket. The rod consists of steps with a groove. The packing seal is in this groove.
EFFECT: the invention is directed on modernization of the construction of the ball cock and increases the period of its exploitation.
9 cl, 9 dwg
SUBSTANCE: ball cock comprises housing with through opening with double-sided steps, horizontal inlet and outlet sections for flowing fluid that are interconnected through the space that separates them, and vertical inner bore-neck. The neck receives driving shaft provided with the base of the control handle. The ball valving member is provided with the through central passage and is mounted for permitting rotation in the vertical plane by an angle of 90°. Two movable seats-seals are flexibly loaded by pressing devices. The seats-seals are arranged from both sides of the valving member with central concave spherical sections which are in a contact with the surface of the valving member. One seat is mounted in the cylindrical bore provided in the housing. The other seat is mounted for permitting interaction with the axially movable bushing sealed over the outer cylindrical surface. The neck of the housing is stepped, and its larger step is arranged from the side of the separating space. The bore receives the antifriction coaxial cylindrical bushing-insert provided with the outer ring collar. The bushing is mounted for permitting simultaneous contact and interaction with the corresponding sealing surface of the driving shaft and fitting inner surface of the base of the control handle. The bushing is provided with the locking member that prevents it against rotation. The seats-seals together with the pressing members are built in the common cylindrical bore in the housing. The diameter of the bore is equal to the diameter of the guiding surface of the axially movable bushing. The diameter of the cylindrical bore in the housing is related to the diameter of the ball valving as 1.06-1.1. The edges of intersection of the spherical surface with the open surface of the face and cylindrical surface of the flowing passage of each seat-seal are beveled to define two axially aligned truncated cones. The tops of the cones face pressing devices and are in coincidence with the axis of rotation. The diameter of the grater base of the truncated cone is equal to the diameter of the base of the spherical belt. The diameter of the lesser base of the truncated cone does not exceed the width of the ball belt of the valving member.
EFFECT: enhanced reliability.
1 cl, 3 dwg
FIELD: valving engineering.
SUBSTANCE: half-ball valve comprises housing provided with semispherical space that goes into the opening for assembling. The housing has the opening for the rod in front of the opening for assembling. The opening for the rod connects the space with ambient. The first connecting opening is inclined to the axis of the opening for the rod. The third connecting opening is arranged in the horizontal plane at 90°, 180°, and 270°, beginning with the first connecting opening around the axis of the opening for the rod. The housing has outer semi-spherical contour. The housing space receives half-ball segment that can be opened and closed. In the open position, the first connecting opening is open. In the closed position, the first connecting opening is blocked. The ball segment has a passage that is connected with the first connecting opening in the open position, and it is inclined to the axis of the opening for the rod. The rod is made in block with the ball segment and connects control lever outside of the housing and ball segment. The rod passes through the openings for the rod. The lid of the housing has second connecting opening that is connected with the passage in the ball section. The lid is in conjugation with the housing for overlapping the space from the side of the assembling opening. The lid of the housing has the second connecting opening that is connected with the passage in the ball segment. The lid is coupled with the housing for overlapping the space from the side of opening for assembling. The seal is interposed between the outer surface of the ball segment and inner wall of the housing. The outer surface of the ball segment and inner wall of the housing are mating. The seal is made in block. The seal has flange that is bent outside and can be interposed between the housing and lid of the housing and locked by means of housing and housing lid. The diameter of the passage corresponds to the diameter of the first connecting opening, second connecting opening, and third connecting opening.
EFFECT: reduced sizes and enhanced reliability.
16 cl, 9 dwg
SUBSTANCE: valve comprises housing with the seat, slide vale with centering members, inlet and outlet passages, and flowing chamber. The back side of the flowing chamber is closest to the longitudinal axis of the valve and is a smooth curve in cross-section, e.g. half ellipse. The smaller radius of the ellipse is in coincidence with the largest radius of the slide valve. The larger radius is determined from the equality of the areas of cross-section of the inlet passage and flowing chamber when the valve is open.
EFFECT: reduced hydraulic resistance.
2 cl, 4 dwg
FIELD: containers for transportation and storage of articles and materials, particularly with taps or cocks.
SUBSTANCE: tap of valve type or ball type comprises body with inlet pipe connected to outlet pipe of liquid reservoir and outlet pipe welded to sealing part of lever-actuated sleeve having discharge hose attached thereto. Tap body is formed of high-density polyethylene, sealing part is made of high-density polyethylene reinforced with fiber glass. Mating part of the sleeve is secured to connecting end of discharge hose and is fixed on seating part by pressing lever connected thereto.
EFFECT: increased air-tightness of discharge valve with discharge hose due to increased rigidity of high-density polyethylene reinforced with fiber glass welded to outlet pipe of seating part.
2 cl, 2 dwg
FIELD: pipe line fittings; pneumatically-driven valves mounted on tank trucks.
SUBSTANCE: proposed valve has base connected to lower portion of tank and provided with through holes for passage of medium. Piston is connected with base through rod and movable shut-off member pressed by spring embraces the piston. Cavity formed between piston and shut-off member is brought into communication with compressed air source used as control medium. Manual duplicating drive includes drive shaft connected with shut-off member by means of wire and mounted in radial hole of base 1 for turning relative to its axis and winding the wire running through hole in plate used as support.
EFFECT: simplified construction of valve.
4 cl, 2 dwg
FIELD: equipment for ballast tanks of submersible transport facilities.
SUBSTANCE: proposed fitting has body with cover and rod connected with shut-off member, pneumatic drive in form of body with cover, working medium supply unit and hollow plunger. Mounted in body around rod is spring whose lower end is secured on bottom of body and upper end is secured on head of sleeve which is engageable with signaling unit. Body may be provided with base having hole closed by shut-off member and engageable with cover of pneumatic drive; this cover has profiled cylindrical hollow part which is coaxial relative to body; plunger engageable with rod is mounted in this part. Shut-off member may be made in form of plate secured on rod for closing the hole in coaming secured hull.
EFFECT: enhanced reliability; improved service characteristics.
10 cl, 5 dwg
FIELD: oil and chemical industry.
SUBSTANCE: gate valve has housing made of two interconnected housing members. The space between the housing members receives disk slide valve which is provided with geared sector and mounted for rotation in its plane. The geared sector engages the driving pinion. The housing members are interconnected through bending. The bending is made of two semirings which are of U-shaped in cross-section. The disk slide valve has at least two through openings of different diameters. The axes of the openings are arranged at the same distance from each other, which is equal to 0.85-1.2 of the diameter of the greater through opening. The geared sector of the disk slide valve is closed.
SUBSTANCE: filter has housing ,provided with the internal space, with inlet and outlet openings, and lid. The housing receives filtering member.
EFFECT: enhance reliability.
SUBSTANCE: filter has housing ,provided with the internal space, with inlet and outlet openings, and lid. The housing receives filtering member.
EFFECT: enhance reliability.