Water-mixing cock cartridge, cock containing this cartridge, and thermostatic unit for equipping this cartridge

FIELD: mechanics.

SUBSTANCE: water-mixing cock cartridge includes two ceramic plates adjusting temperature and flow of mixture of two liquids (F, C) entering the cartridge with various temperatures. In addition, it includes thermostatic devices made with possibility at least of automatic shutting off, at least partially, cartridge circulation (Ec) of the hottest entering liquid (C) at the inlet of plates, when mixture temperature (M) exceeds the specified threshold value (Td). At that, the above thermostatic devices include the following: hottest liquid (C) flow shutting off device restricted with cartridge at inlet of plates, and thermostatic element including temperature sensitive part located at least partially on the way of cartridge mixture (M) flow and at outlet of both plates, and movable part made with possibility of being offset relative to temperature sensitive part and moving together with shutting off device. At that, the latter is installed so that it can slide along offset direction (Z-Z) of movable part to cartridge zone restricting the flow of the hottest liquid (C) by means of sealing. Water-mixing cock is equipped with the above cartridge.

EFFECT: increasing operating safety of cock.

12 cl, 7 dwg

 

The present invention relates to a cartridge for photometering crane and equipped in such a cartridge photometering valve, and thermostatic control of fluid flow.

The invention relates in particular to the cartridges of the crane is powered by two liquids having different respective temperature and held for mixing inside the cartridge through at least two ceramic discs, movable one relative to another. To change the relative position of these disks and, accordingly, adjust the temperature and flow of the mixture cartridges are equipped, as a rule, governing body, made in the form of arms, more or less inclined relative to the Central longitudinal axis of the cartridge. This handle is designed to allow the user of the crane was able to manipulate it, that is, rotation of the handle around the longitudinal axis of the cartridge to change the temperature of the mixed fluid, and the swing arm remaining in the same vertical plane, to change the flow of the mixture. The addition of these two movements allows you to change both the temperature and flow rate. Thus, the ratio of two miscible liquids can vary from 100-0% to 0-100%, which leads to the fact that the temperature of the mixture may vary from "very cold" to "fully Woe is her."

Such valves are typically used in installations domestic water supply network, in which hot water is supplied when the temperature reaches about 80C, which can cause burns.

To eliminate this inconvenience, it has been proposed to provide a limiter that allows you to lock the rotation of the handle to the full overlapping pipe for supplying cold water to reduce the temperature of the mixed water from the "hot". Meanwhile, the location of this limiter depends on pressure and temperature of the cold water and hot water supply cartridge. As a result, when, for example, cold water pressure drops or the temperature of the hot water increases, the temperature of the mixed water by a few degrees and reaches, resulting in burns. In addition, in the case of a complete turn off cold water supply water at the outlet of the cartridge has a temperature equal to the temperature of the incoming hot water, which is particularly dangerous.

Along with this well-known thermostatic cartridge with a single control handle, for example, in patent WO-A-96/26475. They are expensive and have a large size, which makes them almost impossible to vodomaslyanyh valves standard size, which are usually designed to use a cartridge with a diameter of 40 m is.

Another example thermostatic cartridge presented in the patent EP-A-1 048 997. This cartridge includes a bypass pipe that connects directly to the cold water intake to the outlet for the mixed water, and the overlap of this pipe is carried out by a thermostatic element, the sensing part is washed by the flow of the mixed water. If the temperature of the mixed water is too high, cold water is supplied directly to the output from the cartridge through the bypass pipe. Meanwhile, in case of insufficient water supply cold water, and in the case of complete termination danger of burns remains. In addition, the sizes of the devices related to the bypass pipe, make difficult their integration within the cartridge of the standard size.

In another area, namely in the field of traditional valves, in other words where housing cranes are not intended for use interchangeable cartridges, in particular, cartridge with ceramic discs, in the patent FR-A-2 424 459 offered odometery crane, the body of which includes a thermostatic element, the sensing part is washed by the flow of the mixed water coming out of the faucet, while its piston actuates the shut-off valve flow incoming into the hot water tap. The inlet hot water CH is been for this purpose, a sealing ring, on which the valve rests piston, following the direction of their movement, when the temperature of the mixed water reaches a predetermined value. If this temperature is exceeded, the valve acts on the ring and moves it along the canal, compressing a special spring that is inserted between the ring and the wall of the valve body. This spring allows you to return the ring to its original position along the channel of hot water when the temperature of the mixed water is reduced. This spring, which runs thus a function of leaf springs thermostatic element and which is necessary for good operation of the crane, occupies a significant place inside of the valve body and substantially increases its dimensions along the longitudinal axis of thermostatic element. As a consequence, the valve body has a longitudinal dimension substantially greater than the size of a standard cranes and substantially exceeding the diameter of the interchangeable cartridges, directly adapted for use in such standard cranes.

The objective of the invention is to provide a cartridge that ensures the best security against burns, without requiring complex and cumbersome alterations of existing cartridges, in particular, keeping the control unit with two ceramic discs, and allowing you to keep the standard size of 40 mm for the diameter of the cartridge.

For this purpose, the invention proposes as the object cartridge for photometering faucet with two ceramic disc control the temperature and flow of the mixture of two liquids that are included in the cartridge with different temperatures, characterized in that it further comprises a thermostatic means made with the possibility of at least partial automatic overlapping in time when the temperature of the mixture exceeds a predetermined threshold value circulation in the cartridge most incoming hot fluid above the disk, and mentioned thermostatic means contain:

- gate pass most of the hot liquid, limited by the cartridge above the disks,

thermostatic element comprising simultaneously heat-sensitive portion located at least partially in the path of passage of the mixture in the cartridge and upstream of both disks, and the bending portion is configured to be displaced relative to the heat-sensitive part and moves together with the shutter, while

the shutter is mounted for sliding along the direction of movement of the movable part, in the zone of the cartridge, restricting the passage of most of the hot liquid through the seal, which is connected either to this area, either with the bolt and which at the moment, it is when the temperature of the mixture exceeds a predetermined threshold value, can create a sealed sliding contact respectively with the bolt or area.

The cartridge according to the invention provides the function of a thermostatic limit the temperature of the mixture coming out of the cartridge, preventing thus the danger of burns. The layout of the respective thermostatic means are not forced to abandon use of the majority of components of existing cartridges, in particular regulating ceramic discs that are both reliable and expensive components, and a single handle control flow and the temperature of the mixture; this type of "odnokomandnoyu arm" is particularly common and appreciated by the users. In addition, thanks to the seal, which allows the simultaneous sealed to block the passage of most of the hot liquid and to provide possible additional stroke of the piston of thermostatic element, the size of these thermostatic means there may be small enough that the cartridge according to the invention could be installed instead and in place of the existing cartridge and, in particular, a cartridge with an outer diameter of about 40 mm

It is advisable that:

the seal was made of elastically deformable material;

seal had a circular form, adapted the La maintain tight sliding contact, when the temperature of the mixture exceeds the temperature corresponding to the beginning of the full blocking of the circulation member of most of the hot liquid;

- the shutter was tubular and if the seal is connected with the above-mentioned area, the seal must be capable of forming a sealed sliding contact on the entire periphery of the outer surface of the shutter, as in the case of the connection seal with the stopper seal should be placed on the entire periphery of the outer surface of the shutter;

both ceramic disc adjacent to another one of its surfaces, and the direction of movement of the movable part of thermostatic element relative to the heat-sensitive part was almost parallel to the plane of the abutment discs;

- thermostatic means includes a base that supports thermostatic element and the shutter limiting, at least partially, pass most of the hot liquid and is made with the possibility of mounting a removable manner in the housing of the cartridge, which includes a ceramic discs;

area was limited to the base;

the cap was limited also pass freely crossed most of the cold incoming liquid;

- the maximum size of the cap is equipped with thermostatic element and the shutter was less than 40 mm along the direction of movement of the movable h the particular thermostatic element;

- thermostatic means includes means return the movable part to the heat-sensitive portion of thermostatic element, and means return should be based simultaneously on the wall of the cap and to the gate.

The object of the invention is also odometery crane, equipped with a cartridge described above.

In addition, the object of the invention is a thermostatic control fluid flow embedded in the cartridge above photometering crane, containing a thermostatic element including a sensing part and a part movable relative to the heat-sensitive parts, the shutter moving together with the movable part of thermostatic element, and a base supporting thermostatic element and the valve and restricting the passage for the flow of liquid until it is closed by the shutter, wherein the cap is made with possibility of mounting a removable manner in the housing of the cartridge photometering crane, which has at least two ceramic disc control temperature and flow of the mixture of fluid flow with another fluid flow, a temperature below the flow temperature of the liquid, adjustable thermostatic unit, so that, on the one hand, limited by cap passage of fluid out what use ceramic discs on the other hand, the temperature-sensitive portion of thermostatic element is located at least partially in the flow path of the mixture downstream of both disks, the shutter closing at least partially the passage of fluid when the temperature of the mixture exceeds a predetermined threshold value, and mounted slidable along the direction of movement of the movable part in the zone of the cartridge, restricting the passage of fluid through the seal, which is connected either to this area, either with the bolt and which, when exceeded by the temperature of the mixture a certain threshold forms a tight sliding contact, respectively, with the shutter or area.

The invention is further explained by the description of the example implementation given with reference to the drawings.

Figure 1 depicts a front view of the end of the cartridge photometering crane according to the invention;

2 and 3 are cross sections, respectively, on the planes II-II and III-III in figure 1;

4 is a view similar to figure 3, illustrating the various States of operation of the cartridge;

5 is taken along marked in figure 2 the arrow V front view of thermostatic control unit according to the invention, equipping the cartridge of figure 1-4;

6 is a vertical view in the analysis of the block of figure 5;

7 is a schematic longitudinal section is according to the plane of figure 3 variants of the control unit in figure 5 and 6.

Figure 1-4 shows the cartridge photometering crane, designed to equip cranes water supply, in particular for household appliances. For convenience in description, the term "upper" refers to the upper part of figure 2-4, while the term "lower" refers to the opposite direction.

The cartridge consists of a rigid body 1, forming a housing having a generally cylindrical outer surface with the axis X-X. the Housing includes a bottom base 2, above which is located a tubular skirt 4, centered on the axis X-X. This skirt defines an internal volume 6, limited from below by the base 2 and the top cover 8, is rigidly connected with the upper edge of the skirt 4, for example clips. The cover 8 has a Central opening within which is centered sleeve 10, provided with a flange 10A is pressed against the bottom side of the cover 8 so that the sleeve 10 could be rotated around the axis X-X relative to the stationary cover. This rotation is limited to an angle of approximately a quarter of a turn is not represented in the figure by the system constraints.

The handle 12 of the valve for controlling the flow and temperature of water issued at the outlet of the cartridge and, therefore, issued by the crane, placed in the sleeve 10 and the shaft 14, having a longitudinal axis Y-Y perpendicular to the axis X-X, connects these two parts. The handle 12, thus, mo is et to swing around the axis Y-Y with respect to the cover 8 by an angle limited to approximately 25, by means not shown in figures system constraints.

The base 2 of the housing 1 to its lower end limits the cavity 2A generally cylindrical shape with the axis X-X, in which is located a thermostatic unit 16, described in detail below. The cavity 2A communicates with the internal volume of 6 three through-holes, limited base 2, namely:

the first inlet 2F provided to supply volume 6 water, called hereinafter "cold water F", coming from the cavity 2A and having a first temperature,

the second inlet 2C provided to supply volume 6 water, called hereinafter "hot water C", coming from the cavity 2A and having a second temperature above the first temperature,

- outlet 2M, provided for removal of volume 6 to the cavity 2A of the water, called hereinafter "the mixed water M temperature, adjustable range from the first to the second temperature.

Adjustment by the user of the temperature and flow rate of the mixed water M is inside volume 6 by means of the following elements:

the lower ceramic disk 20, centered on the axis X-X and rigidly connected with the housing 1, for example, through a system of ledges; this fixed the disk includes a through passage x is a cold water 20F, the passage of hot water 20C, and the passage of the mixed water 20M, and these three paths are communicated, respectively, with holes 2F, 2C, and 2M base 2 of the housing through the medium of a sealing gasket 22;

the upper ceramic disk 24, a movable manner pressed against the upper surface of the bottom disk 20, forming with the latter a flat abutment connection, perpendicular to the axis X-X; the mating surface of the disc 20 and 24 closely adjacent each other in said plane P, is able to ensure the tightness between the discs, including during movement of the disc 24 relative to the stationary disk 20; the lower side of the disk 24 forms above the plane P of the cavity 24A, which, on the one hand, is in constant hydraulic communication with the passage of the mixed water 20M disk 20 and on the other hand, connected or not with the cold water passages 20F and hot water 20C depending on the relative position of the disk 24 relative to the disk 20;

- drive disc 28, is pressed, on the one hand, to the lower side of the flange 10A of the sleeve 10 and, on the other hand, to the upper side of the movable disk 24; drive disk 28 is also connected by means of a flat supports, perpendicular to the axis X-X, with the sleeve 10 and the disk 24; disc 28 is also connected with the handle 12 gear system 30, forming a swivel connection along an axis parallel to the axis Y-Y.

Package d is SKOV 20, 24 and 28 is retained sealing gasket 22, which creates enough pressure to squeeze these disks to the flange 10A of the sleeve 10.

Except for the cavity 2A in the bottom base 2 of the housing 1 and a thermostatic unit 16 described above, the device of the cartridge are standard devices for cartridge with single lever control and ceramic discs. These disks provide high integrity at the level of the plane of their attachment P; the risk of leakage between these disks is negligible even after a long period of use.

According to the invention the cartridge according to Fig.1-4 is equipped with a thermostatic unit 16, shown separately in figure 5 and 6. This unit consists mainly of cap 32 made of plastic, for example, similar to the plastic body 1, a tubular valve 34 and a thermostatic element 36, having a sensing part 38, which contains the expanding wax and the piston 40, which is under the influence of expansion of the wax progressive moves in relation to part 38, following the axis Z-Z, around which is stretched in the length of thermostatic element.

The cap 32 limits generally cylindrical internal volume 42, into which, through the o-ring seals 44 coaxially inserted thermostatic element 36. Case thermostatic what about the element, which includes the sensing part 38, is fixed relative to the base 32 by a nut 46, swirling around thermosensitive part 38 through the intermediary of the sealing strip 48 along the axis Z-Z. In an assembled condition, the piston 40 of thermostatic element is located inside the interior volume 42 of the base 32, while its sensing part 38 is located mostly outside of this volume.

From the side, opposite to thermosensitive part 38, following the axis Z-Z, the internal volume 42 of the cap 32 is opened outward in the radial direction at the level of the bottom of the hole 32A and the upper hole 32B, limited by cap 32.

The valve 34 is mounted for sliding in the internal volume 42 of the base 32, following the axis Z-Z. For this purpose, the valve is provided at its end facing thermostatic element 36, the flange 50, providing a sliding and sealed contact against the cylindrical wall of the cap, limiting the amount of 42.

The translational movement of the valve controlled by the piston 40 thermostatic element 36. For this purpose, the valve 34 includes in its intermediate part of the lateral inner wall 34A, based on the piston 40 when the latter is retracted relative to the housing of thermostatic element 36, as shown in figure 4, or directly based on nebody the hydrated body element, as shown in figure 3, when the piston is fully retracted. In order to press the valve 34 to thermostatic element 36 between the valve and the cap 32 from the side walls 34A opposite to the valve thermostatic element inserted a compression spring 52. This spring is preferably about the axis Z-Z, and one of its ends resting on the partition 34A, while its opposite end rests on the wall 54 of the cap 32, perpendicular to the axis Z-Z.

Holes 32A and 32B are opened in the part volume 42, which is sealed in relation to thermostatic element 36 of the flange 50 and the partition wall 34A of the valve 34. This part of the volume 42 and the holes 32A and 32B define thus the fluid passage 56 through the base 32, following the direction generally radial to the axis Z-Z. the flow of fluid in this passage also depends on the position of valve 34 relative to the base 32. When the valve rests on the housing of thermostatic element 36, as shown in figure 3, the valve radially removed from the zone 42A of the connection between the inner volume 42 and the bottom hole 32A so that the hole 32A and volume 42 were in hydraulic communication; while the corresponding axial displacement denoted ase. As the volume 42 has a constant hydraulic communication with the upper hole 32B, the passage 56 is available for circulation. Opposite the harbour is in, when the valve 34 is shifted towards the wall 54 of the cap at a distance greater thaneas shown in figure 4, the connection zone 42A is closed, the fluid passage 56 is interrupted.

To minimize the risk of leakage at the level of the connection zone 42A, when the valve is shifted, as shown in figure 4, this zone is provided with a sealing ring 58, is constantly connected to the base 32. This ring is made of a material allowing elastic deformation, and has an inner diameter almost equal to the external diameter of the cylindrical portion 34B of the valve 34. The ring 58 supports so tight contact along the periphery of the valve 34 when the latter is shifted enough to the wall of the cap 54, and, if the valve performs translational motion and slides along the ring. In other words, when the valve is shifted enough to the wall 54, as in figure 4, the ring 58 that is fixed relative to the base 32, is located between the shutter and area 42A of the cap, following the direction nearly radial to the axis Z-Z.

The cap 32 limits, in addition, a second fluid passage 60, separate from the passage 56 and oriented in the direction generally parallel to the direction of the passage 56.

The cap 32 is made with the possibility of mounting a removable manner in the cavity 2A, limited base 2 of the housing 1 of the cartridge. As shown in figure 1-4, the cap 32 is pressed in this case is on the bottom of the cavity 2A so the upper hole 32B is opened in a hole inlet hot water 2C of the base 2 (Fig 3), while the upper hole 60B of the passage 60 is opened in the hole of the cold water intake 2F (figure 2). As for the outlet mixed water 2M, then it opens vertically from the nut 46 and the heat-sensitive portion 38 of thermostatic element. With this arrangement of the cap 32, the axis Z-Z extends perpendicular to the axis X-X of the cartridge, and these axes do not intersect. The connection passage 56 with a hole 2C and the connecting passage 60 with a hole 2F pressurized double seal 62.

Cartridge, equipped with a thermostatic unit 16, is provided for placement in the valve body, in which the supply of hot water C and cold water F associated, respectively, with a hole 32A and the lower hole 60A of the passage 60 through hermetic seals 64 and 66, while the drain of the mixed water M from the tap is in hydraulic communication with the outlet area of the hole 2M in the cavity 2A through hermetic seal 68.

The cartridge works in the following way:

During normal operation, are presented in figure 2 and 3, i.e. when the valve is supplied simultaneously with cold water F and hot water C, and, moreover, that the handle 12 is in a position that provides a priori moderate the temperature of the mixture, cool the water I F rises in the passage 60 of the cap 32, then into the holes 2F and 20F to be in the cavity 24A of the upper disk 24. Parallel C hot water rises into the hole 32A of the base 32, penetrates into the volume 42, around the valve 34, passes through the gapeformed between the free end of the valve and the sealing ring 58, and then rises again sequentially through the upper hole 32B of the cap through the opening 2C of the housing 1 and through the opening 20C of the disk 20 to be in the cavity 24A. Hot water C cold and F are mixed in the cavity 24A. The resulting mixed water M descends successively through the holes 20M disk 20 and 2M of the housing 2, is withdrawn from the cartridge and then goes to the issue of the crane, with some of the mixed water downstream of the disk 20 is in this case around thermosensitive portion 38 of thermostatic element 36. The path of circulation of cold water F C hot water and mixed water M are indicated, respectively, by arrows EFEWithand EM.

As the temperature of thermosensitive part 38 is below a predetermined threshold Tdcorresponding to the temperature of the beginning of the movement of the piston 40 from the fixed portion of thermostatic element 36, is caused by expansion of the wax contained in this fixed part, the flow rate and the temperature of the mixed water M are governed by the change in throughput with the treatment C hot water and cold water F between the top 24 and the bottom 20 disks; these throughput cross section are the sections formed by the combination of, respectively, the inlet openings of hot water 20C disk 20 with the mixing cavity 24A of the disk 24 and the combining hole of the cold water intake 20F disk 20 with this mixing cavity. These sections are moving parallel to the plane P of the upper disk 24 on the lower disk 20 by means of the handle 12, through the drive disc 28. The flow rate of the mixed water M adjustable from closed to full open swing arm 12 about the axis Y-Y, while the temperature of the mixed water can be adjusted from completely cold to full hot rotation of the handle around the axis X-X.

The result of the control lever 12 pressure drop or temperature supply cold water faucet F and/or increasing the pressure or temperature supply hot water tap C, the temperature coming out of the cartridge of the mixed water M may exceed the threshold value of the temperature Td. In this case, the wax contained in thermosensitive part 38 expands and moves the piston 40 along the axis Z-Z in relation to the housing of thermostatic element 36, carrying the valve 34 in the direction of the sealing ring 58, thereby reducing the amount ofeand partially blocking the circulation of hot water Ewithin the passage 56. If the temperature of the mixed water which reaches temperatures, hereinafter Tfpassed the valve 34 by the piston 40 forward motion is such that this valve comes in contact with the sealing ring 58. Then the movement of hot water Ewithalong the passage 56 is completely interrupted. If the temperature of the mixed water M continues to increase and exceeds the temperature Tfassociated with the beginning of the common overlapping circulation of hot water Ecthe piston 40 continues to move the valve 34, which slides inside the sealing ring 58, as shown in figure 4. Hot water circulation Ecremains completely blocked.

In other words, when the temperature coming out of the cartridge of the mixed water M has a value enclosed between Tdand Tfthermostatic unit 16 reduces the flow of hot water C upstream disks 20 and 24, bringing the valve 34 to the ring seal 58 and forcing, thus dropping the temperature of the mixed water. When the temperature coming out of the cartridge of the mixed water M is equal to or above the threshold value Tfthermostatic unit 16 completely covers the passage 56 hot water and hot water C does not reach the input of the hole 2C of the housing 1; thus, coming out of the cartridge, the water will be in this case only from the supply cartridge cold water F.

When the piston 40 is advanced is t, the temperature of the mixed water M, in some cases up to cold water temperature F, causes the withdrawal of the piston and return the valve to its original position under the influence of spring 52. Thus, when the temperature of the mixed water M again becomes lower than the threshold value Tfthe valve 34 will be released from the sealing ring 58, restoring, at least partially, the circulation of Echot water C in the passage 56.

Thermostatic unit 16 thus stabilizes the temperature of the mixed water M to the value enclosed between Tdand Tfin the case when the conditions of regulation or pressure surges and/or temperature hot water or cold water would be in the absence of the block 16, the temperature increases above Tf. In practice, the values of Tdand Tfcan be relatively close.

Besides, if suddenly there is a violation of cold water F and if the temperature of the supply cartridge C hot water exceeds Tfno water flow from the cartridge will not be up until the cold water supply will not be restored.

Thus, all considered in the drawing cases, the temperature of the mixed water M is limited to the value of temperature Tfselected to avoid burns.

Use o to LCA 58, which provides a hermetic sealing of the passage 56 and the slide valve 34 beyond its extended position, associated with the magnitude of the temperature Tfavoids use in thermostatic unit 16 difficult and more expensive systems designed to reduce the additional stroke of the piston 40 thermostatic element 36. As a consequence, the size of thermostatic unit 16 has a low value, allowing the cartridge according to the invention to be integrated in the valve body, having an internal diameter less than 40 mm, in other words, the maximum size D of the block 16 along the axis Z-Z is less than 40 mm

Figure 7 shows a variant 16' thermostatic unit 16 in the previous drawings. Under this option, the tightness between the connection zone 42A of the cap 32 and the outer cylindrical surface 34B of the valve 34 provided with a sealing ring 58', which, unlike the ring 58 in the previous figures, attached to the surface 34B of the valve 34. During operation, when the valve 34 is shifted to the wall 54 of the cap 32, the ring 58' slides against the wall of the cap, which limits the connection zone 42A.

In addition, other various changes and variations of the above described cartridge and its thermostatic unit. In particular, the geometry of the cap 32 can be adapted to the faucet, kodorigorge to be installed cartridge, and/or to the housing 1 of the cartridge, equipped with a thermostatic unit 16, 16'. Besides not present embodiment, the base 32 may be made of a material of the base 2 of the housing 1.

1. Cartridge for photometering faucet with two ceramic disc (20, 24) adjusting the temperature and flow of the mixture of two liquids (F, S)included in the cartridge with different temperatures, characterized in that it further comprises a thermostatic means (16, 16')made with the possibility, at least, to automatically shut off at the entrance of disks (20, 24), when the temperature of the mixture (M) exceeds a given threshold value (Td), at least partially, circulation (Ecin most cartridge incoming hot fluid (S), and mentioned thermostatic means include: shutter (34) of the passage (56) most of the hot liquid (S), limited by the cartridge inlet disks (20, 24), and a thermostatic element (36), comprising simultaneously heat-sensitive part (38)located at least partially in the flow path of the mixture (M) in the cartridge and the output of both disks (20, 24)and a movable part (40)which has a capability to move relative to heat-sensitive parts and moves together with the shutter, the shutter is mounted for sliding along the offset direction (Z-Z) of the movable part (40), the zone (42A) of the cartridge, limiting the passage (56) most of the hot fluid (S)through seal (58, 58'), which is rigidly connected to or from this area, either with the bolt and which, when the temperature of the mixture (M) exceeds a given threshold value (Td), can create a sealed sliding contact respectively with the bolt or area.

2. The cartridge according to claim 1, characterized in that the seal (58, 58') is made of elastically deformable material.

3. Cartridge according to one of claims 1 or 2, characterized in that the seal (58, 58') has a ring shape, which is adapted to maintain a sealed sliding contact when the temperature of the mixture (M) exceeds the temperature (Tf)associated with the beginning of the common overlapping circulation (Ecmost incoming hot fluid (S).

4. The cartridge according to claim 1, characterized in that the shutter (34) is tubular, and if the seal (58) are rigidly connected to the mentioned area (42A)is formed, sealed sliding contact on the periphery of the external surface (34B) of the shutter, and if the seal (58') are rigidly connected to the shutter, it runs along the entire periphery of the outer surface (34B) of the shutter.

5. The cartridge according to claim 1, characterized in that both ceramic disk (20, 24) adjacent to each other one of its surfaces, and the direction of displacement of the movable portion of thermostatic e the ment in relation to heat-sensitive parts, essentially parallel to the plane of the abutment disk.

6. The cartridge according to claim 1, characterized in that thermostatic means (16, 16') includes a base (32)holding thermostatic element (36) and the shutter (34), bounding at least in part, the passage (56) most of the hot liquid (S)made with the possibility of detachable mounting in the housing (1) cartridge, which includes a ceramic disks (20, 24).

7. The cartridge according to claim 6, characterized in that the zone (42) is limited by the cap (32).

8. The cartridge according to claim 6, characterized in that the cap (32) restricts the passage (60), for free of course most incoming cold fluid (F).

9. The cartridge according to claim 6, characterized in that along the direction of the displacement (Z-Z) of the movable part (40) of thermostatic element (36) max size (D) of the cap (32)equipped with a thermostatic element (36) and the shutter (34), is less than 40 mm

10. The cartridge according to claim 6, characterized in that thermostatic means (16, 16') includes means (52) return the movable part (40) to the heat-sensitive part (38) of thermostatic element (36), and this tool return relies both on the wall (54) of the cap (32) and the shutter (34).

11. Odometery faucet, characterized in that it includes a cartridge according to one of claims 1 to 10.

12. Thermostatic unit (16, 16') of the flow control LM the bone (E c), includes thermostatic element (36), the sensing portion (38) and a movable part (40), a movable relatively heat-sensitive parts, the shutter (34)moving together with the moving part (40) of thermostatic element (36)and the base (32)holding thermostatic element and the slide restricting passage (56) for fluid flow (Ec), up to the state of full overlapping of the shutter (34), characterized in that the cap (32) is configured to detachable mounting in the housing (1) cartridge photometering crane, which has at least two ceramic disc (20, 24) adjusting the temperature and flow rate of the mixture (M) fluid flow (Ecwith another fluid flow (EF), the temperature below the flow temperature of the liquid, adjustable thermostatic unit so that, on the one hand, the passage of fluid (56), limited by the cap (32), was opened at the entrance of ceramic disks, and, on the other hand, the sensing portion (38) of thermostatic element (36) is located at least partially in the path of movement of the mixture (M) at the output of the two discs, the shutter closes, at least partially, the passage of fluid when the temperature of the mixture (M) exceeds a given threshold value (Td), and is mounted for sliding along the direction of the Oia offset (Z-Z) of the movable part (40) in the zone (42A) of the cartridge, restricting the passage of fluid (56) through seal (58; 58'), which is connected either to this area, either with the bolt and which, when exceeding the temperature of the mixture (M) of a given threshold (Td), forms a tight sliding contact respectively with the bolt or area.



 

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2 cl, 1 dwg

Reference partition // 2182694
The invention relates to the field of water supply of buildings and constructions, namely, to design a heating device installed in the water supply line

Reference partition // 2182693
The invention relates to the supply of buildings and constructions, namely, to design a heating device installed in the water supply line

Profiled tube // 2182692
The invention relates to the field of construction of heat and can be used with heating, cooling and other heat exchangers of the water supply systems of buildings and constructions

FIELD: heating systems; liquid heating systems.

SUBSTANCE: under-ceiling non-evaporating widening tank of heating system has solid casing in form of a canister with level-metering pipe, widening space communicating with heating system and air space separated hermetically from widening space by soft membrane. Air space communicates with environmental air. Membrane is made inform of air bag. Neck of bag is withdrawn out of neck of casing and is connected hermetically with the neck. Plug provided with air hole is tightly inserted into neck of casing. Plug is fastened by screwed cap provided with air hole which is not aligned with hole in plug. Method of detecting of slow leaking of water from heating system is based upon the fact that temperature graph of the system is built in summer without heating. For the purpose values of water level in level-metering pipe of the tank at steady temperature are put along abscissa and values room temperature are put along ordinate; received calibrated curve is subject to calibration. The graph is taken as averaged temperature calibration graph and steady values of outside temperature are drawn above corresponding values of level. When taking subsequent measurements, the averaged temperature is determined again and if the value of level get lower it is assumed that water loss takes place because of leakage or evaporation of water caused by disturbance in leak-proofness of the air bag.

EFFECT: simplified design of tank; better degree of protection of membrane.

2 cl, 1 dwg

FIELD: water supply systems.

SUBSTANCE: method comprises removing the valve from the seating threaded socket in the housing of the water tape, changing the sealing spacer in the stop valve, setting the ring collar that embraces the inlet port for water, and mounting the metal-cutting tool. The metal-cutting tool is made of spindle composed of the metal-cutting head secured in the cylindrical section with shank for connecting to a driver. The broken layers of metal are removed so that the recovered face of the ring collar is oriented perpendicular to the cylindrical surface of the seating threaded socket in the housing of the water tape. Then, the valve is mounted to the site, and the sealing spacer of the stop valve is pressed to the recovered face of the ring collar.

EFFECT: expanded functional capabilities.

15 cl, 9 dwg

FIELD: mechanics.

SUBSTANCE: water-mixing cock cartridge includes two ceramic plates adjusting temperature and flow of mixture of two liquids (F, C) entering the cartridge with various temperatures. In addition, it includes thermostatic devices made with possibility at least of automatic shutting off, at least partially, cartridge circulation (Ec) of the hottest entering liquid (C) at the inlet of plates, when mixture temperature (M) exceeds the specified threshold value (Td). At that, the above thermostatic devices include the following: hottest liquid (C) flow shutting off device restricted with cartridge at inlet of plates, and thermostatic element including temperature sensitive part located at least partially on the way of cartridge mixture (M) flow and at outlet of both plates, and movable part made with possibility of being offset relative to temperature sensitive part and moving together with shutting off device. At that, the latter is installed so that it can slide along offset direction (Z-Z) of movable part to cartridge zone restricting the flow of the hottest liquid (C) by means of sealing. Water-mixing cock is equipped with the above cartridge.

EFFECT: increasing operating safety of cock.

12 cl, 7 dwg

FIELD: construction.

SUBSTANCE: system has a connection to a water supply utility, at least one supply or lifting riser, at least with one branching floor pipeline and/or at least one branching circular pipeline in direction of water flow from the riser and/or the floor pipeline. The system is also equipped with a return riser, where the supply rise and/or the lifting riser and/or the floor pipeline and/or the circular pipeline end. At least one consumer is connected to the lifting riser and/or floor pipeline and/or circular pipeline. The system of pipelines forms a closed circulation pipeline from the supply riser or the lifting riser and the return riser. A device is integrated into this pipeline for cooling of flowing water, with the help of which a capability is provided for cooling, or potable or technical water is cooled to the specified temperature. The connection to the water supply network is on in direction of the flow upstream the inlet of the cooling device into the circular pipeline. A control valve, depending on the established temperature, at temperature above the specified value for water flowing via the pipeline, opens the flow to the maximum value, and if the temperature is below, it limits the flow to the minimum value.

EFFECT: compliance of water in a system with hygienic requirements.

17 cl, 15 dwg

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