UA97712C2 - Two-seat valve (variants) - Google Patents

Abstract

The invention relates to pipeline fittings, in particular to control devices, and is intended for straightening flows of flowing working medium, decrease of static pressure and removal of turbulence in two-seat valves at control of flows of liquid and gaseous media. The two-seat valve has body, over-seat and inter-seat chambers, inlet and outlet branch pipes, two seats placed coaxially and a gate that interacts with those, this consists of a rod and two profiled plates, and in the inter-seat chamber a rib is provided, this is parallel to the plane of the seats, separates the inter-seat chamber into two parts, at that in the rib the guides of the rod of the gate are provided. In the other variant of realization of a two-seat valve that includes body, the inlet and the outlet branch pipes, two over-seat chambers and two inter-seat chambers, in the inner inter-seat chamber a rib is provided, this is parallel to the plane of the seats and separates the inner inter-seat chamber into two parts, at that in the rib guides of the gate rod are provided.

Description

The invention belongs, in general, to pipeline fittings, in particular to regulating devices, and is mainly intended for straightening the flows of a fluid working medium, reducing static pressure and eliminating turbulence in double-seated valves during the regulation of flows of liquid and gaseous media.

A well-known two-seated valve (D.F. Gurevich Truboprovodnaya armatura. Reference manual. Mashinostroenie. 1981, p. 128, 133), which has a body, inlet and outlet nozzles, two seats located coaxially, which are connected by a jumper, a profiled valve, overseats and intersaddle camera.

A double-seated valve is also known, which implements a gate unloading method (SHA Mo 87025 patent, IPC 7, E16K1/44, E16K 1/32, published on June 10, 2009), which has a body, inlet and outlet nozzles, two coaxially located saddles, a valve interacting with them, two suprasaddle chambers and two intersaddle chambers.

The first "internal" intersaddle chamber is formed by two partitions, the first of which is fixed on the walls of the body in the direction of the movement of the working medium to the shutter in such a way that its plane is perpendicular to the axis of the inlet nozzle, and the second is installed after the shutter between the saddles in such a way that its plane is perpendicular to the axis outlet nozzle.

The second intersaddle chamber "external" is formed by the flow part of the valve body between the internal intersaddle chamber and the outlet nozzle.

The disadvantage of known two-seated valves is that when the working medium moves, hydraulic resistance of the flow part of the valve body occurs due to the fact that the working medium flows, bypassing the holes in the seats, enter the internal inter-seated chamber, meet each other and mutually extinguish their speed.

At the same time as the flow rate decreases, the static pressure in the flow increases, which also prevents the flow of the working medium.

At the same time, turbulence occurs in the flows of the flowing working medium, which leads to an increase in noise, pressure pulsations on the valve and increased wear of the flow part of the two-seated valves.

The closest to the proposed invention is a two-seat valve (AS USSR Mo 953332, MPK7, E16K27/02, E16K1/44, publ. 08/23/1982), which has a body, inlet and outlet nozzles, two coaxially located seats, interacting with they include a shutter, suprasaddle and intersaddle chambers and a rib that divides the intersaddle chamber into two parts, and a through hole is made in the rib, coaxial with the holes in the saddles, while the plane of the rib is parallel to the planes of the saddles. The rib divides the flow of the working medium into two flows, which are combined in the outlet of the valve.

With this design of the double-seated valve, the flows of the working medium leaving the seats have limited freedom of movement between the chambers in the inter-seated chamber, due to the gap between the hole in the rib and the gate, but these restrictions apply only under the condition that the gate is fully opened (see Fig. 1 A S. USSR Mo 953332), because the hole in the rib is equal to or larger than the largest diameter of the shutter.

As a result, in the intermediate positions of the shutter, the rib does not perform its functions of separating the flows of the incoming working medium, because the flow of the working medium coming out through the lower seat flows around the shutter and, entering the opening of the rib, meets the flow of the working medium coming out of the upper seat, causing hydraulic valve resistance, static flow pressure and turbulence.

At the same time, due to the fact that the shutter supports are located in the suprasaddle chambers, their intensive wear occurs. The intensity of wear depends on the distance between the shutter supports and the place of application of forces - the effect of the flow of the working medium on the shutter.

The task of the invention is: - ensuring the flow direction of the flowing working medium, - reducing the turbulence of the flowing working medium flows, - reducing the hydraulic resistance of the valve, - reducing the static pressure in the flow in all positions of the valve, - increasing the capacity of the two-seated valve, - reducing the wear of supports and elements shutter conjugations, incl. due to reduced cavitation wear, - reduced sensitivity of the shutter to water hammer and sharp pressure jumps when regulating the flow of the working medium, - reduced sensitivity to the pressure drop on the shutter, - increased reliability of regulating the flow of the working medium, 60 - increased manufacturability,

- improvement of repairability and increase of the inter-repair period, especially for double-seated valves with a large cross-section, - expansion of the scope of application of double-seated valves.

The problem is solved by the fact that in a two-seat valve containing a body, a supra-seat and an inter-seat chamber, inlet and outlet nozzles, two coaxially located seats and a shutter interacting with them, consisting of a stem and two profiled plates, according to the proposed invention, in an inter-seat chamber a rib parallel to the plane of the saddles is made, dividing the intersaddle chamber into two parts, and the shutter rod guides are made in the rib.

In addition, the outlet pipe additionally has a rib in a plane parallel to the rib that separates the intersaddle chamber.

In addition, the rib that separates the interatrial chamber is made of two parts; at the same time, one part of the rib is part of the intersaddle chamber, and the second part is part of an additional construction that forms a single removable assembly, which includes, at a minimum, the upper and lower saddles, the shutter with its rod guides.

In addition, an executive mechanism, such as a piston, is additionally made between the guides of the shutter rod.

In addition, the drive element, such as the piston, of the executive mechanism is made single with the shutter rod.

In addition, the actuator rod guides are shutter guides.

In addition, a spring is made between the drive element, such as the piston, of the executive mechanism and one of the shutter rod supports.

In addition, at least one partition is made between the rod coming out of the executive mechanism into the intersaddle chamber and the working environment of the valve.

In addition, between the guides of the shutter rod, a mechanical drive of the shutter rod is additionally made, for example, in the form of a worm or ball-screw transmission.

In addition, a media separator is made between the rod coming out of the mechanical drive into the intersaddle chamber and the working environment of the valve.

In addition, the valve body is made of at least two parts.

Also, the given task is solved by the fact that in a two-seat valve containing a body, inlet and outlet nozzles, two supra-seat chambers and two inter-seat chambers, where the first inter-seat "inner" chamber is formed by two partitions, the first of which is fixed on the walls of the body in the direction of movement of the working medium to the valve in such a way that its plane is perpendicular to the axis of the inlet nozzle, and the second is installed after the valve between the seats in such a way that its plane is perpendicular to the axis of the outlet nozzle, as a result of which the second "external" intersaddle chamber is formed by the flow part of the valve body between the internal intersaddle a chamber and an outlet pipe, two coaxially located saddles and a shutter interacting with them, consisting of a rod and two profiled plates, according to the proposed invention, in the internal intersaddle chamber there is a rib parallel to the plane of the saddles, which divides the internal intersaddle chamber into two parts, and shutter rod guides are made in the rib.

In addition, in the external integumentary chamber, a rib is additionally made in a plane parallel to the rib that separates the internal integumentary chamber.

In addition, the outlet nozzle is additionally equipped with a rib in a plane parallel to the rib that separates the internal intersaddle chamber.

In addition, in the internal intersaddle chambers, ribs are additionally made in the plane formed by the axis of the shutter rod guides and the axis of the inlet nozzle.

In addition, in the external intersaddle chamber, a rib is additionally made in the plane formed by the axis of the shutter rod guides and the axis of the outlet nozzle.

In addition, the outlet nozzle is additionally equipped with a rib in the plane formed by the axis of the shutter rod guides and the axis of the outlet nozzle.

In addition, the rib that separates the internal interatrial chamber is made of two parts; at the same time, one part of the rib is part of the intersaddle chamber, and the second part is part of an additional construction that forms a single removable assembly, which includes, at a minimum, the upper and lower saddles, the shutter with its rod guides.

In addition, an executive mechanism, such as a piston, is additionally made between the guides of the shutter rod.

In addition, the drive element, such as the piston, of the executive mechanism is made integral with the shutter rod. because In addition, the guides of the executive mechanism are the guides of the shutter rod.

In addition, a spring is made between the drive element, such as the piston, of the executive mechanism and one of the shutter rod supports.

In addition, there is at least one partition between the rod coming out of the actuator into the internal intersaddle chamber and the working environment of the valve.

In addition, a mechanical drive of the shutter rod, such as a worm or ball-screw transmission, is additionally made between the guides of the shutter rod.

In addition, a media separator is made between the rod coming out of the mechanical drive into the internal intersaddle chamber and the working environment of the valve.

In addition, the valve body is made of at least two parts.

Technical result: - ensuring the direction of flows of the fluid working medium, - reducing turbulence in the flows of the fluid working medium, - reducing the hydraulic resistance of the valve, - reducing the static pressure in the flow in all positions of the valve, - increasing the capacity of the two-seated valve, - reducing the wear of supports and elements shutter connections, incl. due to the reduction of cavitation wear, - reduction of the sensitivity of the valve to hydraulic shocks and sudden pressure jumps when regulating the flow of the working medium, - reduction of sensitivity to the pressure drop on the valve, - increase of the reliability of regulation of the flow of the working medium, - improvement of manufacturing manufacturability, - improvement of repairability and increase of the inter-repair interval period, especially for two-seated valves with a large cross-section - expansion of the scope of application of two-seated valves.

In fig. 1 shows an example of the location of the rib with the valve stem supports in the interseat chamber of a through-seated double-seated valve.

In fig. 2 shows an example of the location of the rib with the valve stem supports in the interseat chamber and the outlet pipe of the through-seat two-seat valve.

Zo In fig. C shows an example of the location of the rib with the valve stem supports in the interseat chamber of a through-seated two-seat valve, as well as an example of the location of the removable assembly, which includes the upper and lower seats, the valve with its rod supports, and part of the rib dividing the interseat chamber.

In fig. 4 shows an example of disassembly of the double-seated through-valve shown in fig. 3.

In fig. 5 and 6 show an example of a removable assembly, which includes upper and lower saddles, a shutter with its stem supports and a part of the rib dividing the intersaddle chamber.

In fig. 7 shows an example of the location of the rib with the support of the valve stem and the piston actuator in the interseat chamber of the through-seat two-seat valve.

In fig. 8 shows an example of the location in the interseat chamber of a through-seated double-seated valve: ribs with shutter rod supports and a piston actuator with a spring located inside it.

In fig. 9 shows an example of the arrangement in the interseat chamber of a through-seated double-seated valve: ribs with valve stem supports and a piston actuator with a partition located between the stem and the working medium.

In fig. 10th fig. 10.1 shows an example of the location of the rib with the support of the valve stem and the mechanical drive of the valve stem in the interseat chamber of the through-seat double-seat valve.

In fig. 11 and section A-A shows an example of the location in the interseat chamber of a through-seated double-seated valve: ribs with shutter rod supports and a mechanical drive of the shutter rod with a partition located between the rod and the working medium.

In fig. 12 shows an example of the location of the rib with the valve stem supports in the interseat chamber of the through-seated two-seat valve, as well as an example of the location of the removable assembly, which includes the upper and lower seats, the valve with its rod supports and part of the rib dividing the interseat chamber, where the valve body consists of two parts

Fig. 13 shows an example of disassembly of the through-seated double-seated valve presented in Fig. 12.

In fig. 14 shows an example of the location of the rib with the valve stem supports in the interseat chamber of a through-seated two-seat valve, as well as an example of the location of the removable assembly, which includes the upper and lower seats, the valve with its stem supports, and part of the rib dividing the interseat chamber 60, where the valve body is assembled from two parts.

Fig. 15 shows an example of disassembly of the through-seated double-seated valve presented in Fig. 14.

In fig. 16 shows an example of the location of the rib with the valve stem supports in the interseat chamber of the through-seated two-seat valve, as well as an example of the location of the removable assembly, which includes the upper and lower seats, the valve with its rod supports and part of the rib dividing the interseat chamber, where the valve body consists of two parts

Fig. 17 shows an example of disassembly of the through-seated double-seated valve presented in Fig. 16.

In fig. 18 and fig. 18.1 shows an example of the location of the rib, parallel to the plane of the seats, with the support of the valve stem in the internal interseat chamber of the through-seated double-seated valve.

In fig. 19 and fig. 19.1 shows an example of the location of the rib, parallel to the plane of the seats, with the supports of the shutter rod in the inner and outer interseat chambers of the through-seated double-seated valve.

In fig. 20 and fig. 20.1 shows an example of the location of the rib, parallel to the plane of the seats, with the support of the valve stem in the inner and outer interseat chamber, as well as in the outlet flange of the through-way double-seated valve.

In fig. 21st fig. 21.1 shows an example of the location of a rib parallel to the plane of the seats and a rib perpendicular to the plane of the seats with the support of the valve stem in the internal interseat chamber of a through-seated double-seated valve.

In fig. 22nd fig. 22.1 shows an example of the arrangement of a rib parallel to the plane of the seats, with the valve stem supports in the inner and outer interseat chambers, and a rib perpendicular to the plane of the seats in the outer interseat chamber of a through-seated two-seat valve.

In fig. 23 and fig. 23.1 shows an example of the arrangement of a rib parallel to the plane of the seats and a rib perpendicular to the plane of the seats, with the support of the valve stem in the inner and outer interseat chambers of the through-seated double-seated valve.

In fig. 24 and fig. 24.1 shows an example of the arrangement of a rib parallel to the plane of the saddles and a rib perpendicular to the plane of the saddles with the supports of the shutter rod in the internal intersaddle chamber, as well as a rib parallel to the plane of the saddles and a rib perpendicular to the plane of the saddles

Zo in the external intersaddle chamber and outlet nozzle of the through-seated double-seated valve.

In fig. 25 shows an example of the location of the rib with the valve stem supports in the internal interseat chamber of the through-seated double-seat valve, as well as an example of the location of the removable assembly, which includes the upper and lower seats, the valve with its rod supports, and part of the rib dividing the internal interseat chamber.

Fig. 26 shows an example of the disassembly of the through-seat double-seated valve presented in Fig. 25.

In fig. 27 and 28 show an example of a removable assembly, which includes upper and lower saddles, a shutter with its stem supports and a part of the rib dividing the intersaddle chamber.

In fig. 29 shows an example of the location of the rib with the support of the valve stem and the piston actuator in the internal interseat chamber of the through-seat double-seat valve.

In fig. 30 shows an example of the location in the internal interseat chamber of a through-seated double-seated valve: ribs with shutter rod supports and a piston actuator with a spring located inside it.

In fig. 31 shows an example of the arrangement in the internal interseat chamber of a through-seated double-seated valve: the ribs with the support of the shutter rod and the piston actuator with a partition located between the rod and the working environment.

In fig. 32 and fig. 32.1 shows an example of the location of the rib with the support of the valve stem and the mechanical drive of the valve stem in the internal interseat chamber of the through-seated double-seated valve.

In fig. 33 shows an example of the location in the internal interseat chamber of a through-seated double-seat valve: ribs with shutter rod supports and a mechanical drive of the shutter rod with a partition located between the rod and the working environment.

In fig. 34 shows an example of the location of the rib with the valve stem supports in the internal interseat chamber of the through-seated double-seat valve, as well as an example of the location of the removable assembly, which includes the upper and lower seats, the valve with its rod supports and part of the rib dividing the internal interseat chamber, where the valve body consists of two parts.

Fig. 35 shows an example of disassembly of the through-seated double-seated valve presented in Fig. 34.

In fig. 36 shows an example of the location of the rib with the valve stem supports in the internal interseat chamber 60 of the through-seated valve, as well as an example of the location of the removable assembly, which includes the upper and lower seats, the valve with its rod supports and part of the rib dividing the internal interseat chamber, where the body the valve consists of two parts.

Fig. 37 shows an example of disassembly of the through-seated double-seated valve presented in Fig. 36.

In fig. 38 shows an example of the location of the rib with the valve stem supports in the internal interseat chamber of the pass-through two-seat valve, as well as an example of the location of the removable assembly, which includes the upper and lower seats, the valve with its rod supports and part of the rib dividing the internal interseat chamber, where the valve body consists of two parts.

Fig. 39 shows an example of the disassembly of the through-seat double-seated valve presented in Fig. 38.

The two-seated valve (see Fig. 1) contains a body 1 with an inlet pipe 2 and an outlet pipe 3, coaxially located seats 4 and 5, a suprasaddle chamber 6, a shutter 7, an intersaddle chamber, which is divided into two intersaddle chambers 8 and 9 by a rib 10, which is installed in the plane of the saddles 4 and 5 and is located in the axis of the outlet nozzle 3. The supports of the rod 11 of the shutter 7 are located on the rib 10.

When moving to the opening of the shutter 7, along its supports of the rod 11, the flow of the working medium enters the inlet pipe 2 and, after passing through the suprasaddle chamber 6, enters through the saddle 4 into the intersaddle chamber 8, and through the saddle 5 into the intersaddle chamber 9.

In the intersaddle chambers 8 and 9, the flows of the working medium are directed by the rib 10 into the outlet pipe 3, where they combine and enter the technological line.

The two-seated valve (see Fig. 2) is structurally similar to the one shown in Fig. 1, in addition to the fact that the rib 10, which separates the intersaddle chamber, is made, pos. 12, and in the outlet 3, dividing it into two parts.

Thus, the flows of the working medium, at the exit from the flow part of the valve, enter the technological line, without combining in the outlet pipe 3.

The two-seated valve (see Fig. 3) is structurally similar to the one shown in Fig. 1, in addition to the fact that the rib 10 that separates the intersaddle chamber consists of the inner 10.1 and the outer 10.2 parts, while the inner part 10.1, on which the supports of the rod 11 of the shutter 7 are located, is structurally made of a single, removable unit 13, which includes saddles 4 and 5, shutter 7 with its rod supports 11, as well as connecting node 14.

When disassembling the valve (see Fig. 4), the cover 15 is first removed, after which the removable assembly 13 is removed (see Fig. 5 and its projection view in Fig. b).

The two-seated valve (see Fig. 7) is structurally similar to the one shown in Fig. 1, except that between the supports of the rod 11 of the shutter 7, on the rib 10, a piston actuator 16 (supply of impulse lines is not shown) is made of the drive shutter 7.

At the same time, the piston 17 of the executive mechanism is made single with the shutter 7.

When a pressure drop occurs on the piston 17, the shutter 7 will begin to move, as a result of which the passage section of the valve shutter changes.

The two-seated valve (see Fig. 8) is structurally similar to the one shown in Fig. 7, except that a spring 18 is made between the piston 17 and the rod support 11 of the shutter 7.

When the pressure in the working cavities of the executive mechanism 16 disappears, the shutter 7 will move depending on the characteristics of the spring, that is, if the spring 18 is a compression spring, then the shutter 7 will open, and if the spring 18 is a tension spring, then the shutter 7 will close.

The two-seated valve (see Fig. 9) is structurally similar to the one shown in Fig. 7, except that a partition 19 is made between the shutter rod 7, which exits from the executive mechanism 16 through the rod support 11 into the intersaddle chamber 9, and the working environment of the valve.

When moving the shutter 7, the partition 19 moves along the support of the rod 11 and prevents the direct influence of the working medium of the valve on the shutter rod 7.

The two-seated valve (see Fig. 10 and Fig. 10.1) is structurally similar to the one shown in Fig. 1, except that between the supports of the rod 11 of the shutter 7, a mechanical drive 20 is made, for example, a worm or ball-screw transmission, which has a kinematic connection 20.1 with the shutter rod 7.

The torque of the mechanical drive 20 through the kinematic connection 20.1 is transformed into a linear movement of the shutter 7, as a result of which the passage section of the valve shutter changes.

The two-seated valve (see Fig. 11) is structurally similar to the one shown in Fig. 10, except that a partition 19 is made between the shutter rod 7, which exits from the mechanical drive 20 through the rod support 11 into the interseat chamber 9, and the working environment of the valve.

When moving the shutter 7, the partition 19 moves along the support of the rod 11 and prevents the direct influence of the working medium of the valve on the shutter rod 7.

The two-seated valve (see Fig. 12) contains a body consisting of two parts 1.1 and 1.2, where parts of the body 1.1 and 1.2 form an inlet nozzle 2, an outlet nozzle 3, a suprasaddle chamber 6, intersaddle chambers 8 and 9, a rib 10.2, and also seats for the removable unit 13, which includes the saddles 4 and 5, the shutter 7 with its rod supports 11, the rib 10.1 and the connecting unit 14.

Disassembly of the two-seated valve fig. 12 can take place in the following sequence (see Fig. 13): after removing the cover 15, the removable unit 13 is removed, then the parts of the body 1.1 and 1.2 are disconnected.

The two-seated valve (see Fig. 14) contains a body consisting of three parts 1.1, 1.2 and 1.3, where parts of the body 1.1, 1.2 and 1.3 form the inlet pipe 2, the outlet pipe 3, the suprasaddle chamber 6, the intersaddle chambers 8 and 9, rib 10.2, as well as seats for the removable unit 13, which includes saddles 4 and 5, the shutter 7 with its rod supports 11, the rib 10.1, the piston actuator 16 (impulse lines are not shown) and the connecting unit 14.

Disassembly of the two-seated valve fig. 14 can proceed in the following sequence (see Fig. 15) - parts of the housing 1.1 and 1.2 are disconnected, part of the housing 1.3 is removed, and then the removable unit 13 is removed.

The two-seated valve (see Fig. 16) contains a body consisting of two parts 1.4 and 1.5, where parts of the body 1.4 and 1.5 form an inlet nozzle 2, an outlet nozzle 3, a suprasaddle chamber 6, intersaddle chambers 8 and 9, a rib 10.2, and also seats for the removable unit 13, which includes the saddles 4 and 5, the valve 7 with its rod supports 11, the rib 10.1, the piston actuator 16 (impulse lines are not shown) and the connecting unit 14.

Disassembly of the two-seated valve fig. 16 can take place in the following sequence (see Fig. 17) - parts of the body 1.4 and 1.5 are disconnected and then the removable unit 13 is removed.

A double-seated valve (see Fig. 18 and Fig. 18.1), which has a body 1, an inlet 2 and an outlet Z nozzle, two coaxially located seats 4 and 5, a shutter 7 interacting with them, a suprasaddle chamber 6.

Between the saddles 4 and 5 there are two "internal" intersaddle chambers 8 and 9, separated by a rib 10, which is installed in the plane of the saddles 4 and 5 and is located in the axis of the outlet nozzle 3, while the supports of the stem 11 of the shutter 7 are located on the rib 10.

Between the intersaddle chambers 8 and 9 and the outlet C is located a rib 21, as a result of which the space between the rib 21, the flow part of the body 1 and the outlet Z forms an "external" intersaddle chamber 22.

When moving to the opening of the shutter 7, along its supports of the rod 11, the flow of the working medium enters the inlet pipe 2 and, after passing through the suprasaddle chamber 6, enters through the saddle 4 into the intersaddle chamber 8, and through the saddle 5 into the intersaddle chamber 9.

In the internal intersaddle chambers 8 and 9, the flows of the working medium are directed by rib 10 and rib 21 into the external intersaddle chamber 22, where they combine and enter the outlet pipe 3, and then into the process line.

The two-seated valve (see Fig. 19 and Fig. 19.1) is structurally similar to the one shown in Fig. 18, in addition to the fact that the rib 10, which separates the internal interatrial chambers, is made, pos. 23, and in the external intersaddle chamber 22, dividing it into two parts.

Thus, the flows of the working medium, when entering through the saddles 4 and 5 into the internal intersaddle chambers 8 and 9, are divided into two parts, each of which is directed to the external intersaddle chamber 22, after which they enter the outlet pipe 3, where they combine and enter the technological line.

The two-seated valve (see Fig. 20 and Fig. 20.1) is structurally similar to the one shown in Fig. 19, in addition to the fact that the rib 23, which separates the external intersaddle chamber is made, pos. 24, and in the outlet 3, dividing it into two parts.

Thus, the flows of the working medium, when entering through the saddles 4 and 5 into the internal intersaddle chambers 8 and 9, are divided into two parts, each of which is directed to the external intersaddle chamber 22, then, through the outlet pipe 3, they enter the process line.

The two-seated valve (see fig. 21 and fig. 21.1) is structurally similar to the one shown in fig. 18, except that the internal intersaddle chambers 8 and 9 have a rib 25 in the plane formed by the axis of the guide rod 11 of the shutter 7 and the axis of the inlet nozzle 2.

Thus, the flows of the working medium, when entering through the saddles 4 and 5 into the internal intersaddle chambers 8 and 9, are each divided into two parts and directed to the external intersaddle chamber 22, where they are combined and enter the outlet pipe 3, and then into the technological line

The two-seated valve (see fig. 22 and fig. 22.1) is structurally similar to the one shown in fig. 19, except that in the external intersaddle chamber 22 a rib 25.1 is made in the plane formed by the axis of the guide rod 11 of the shutter 7 and the axis of the outlet nozzle 3.

Thus, the flows of the working medium, when entering through the saddles 4 and 5 into the internal intersaddle chambers 8 and 9, each, are divided into two parts and directed to the external intersaddle chamber 22, where they are combined and enter the outlet pipe 3, and then into technological line.

The two-seated valve (see fig. 23 and fig. 23.1) is structurally similar to the one shown in fig. 19, except that in the internal intersaddle chambers 8 and 9 a rib 25 is made in the plane formed by the axis of the rod guides 11 of the shutter 7 and the axis of the inlet nozzle 2, and also in the external intersaddle chamber 22 a rib 25.1 is made in the plane formed by the axis of the rod guides 11 shutter 7 and the axis of the outlet nozzle 3.

Thus, the flows of the working medium, when entering through the saddles 4 and 5 into the internal intersaddle chambers 8 and 9, are divided into two parts, each of which is directed to the external intersaddle chamber 22, and then directed to the outlet pipe 3, where they are combined and enter the technological line.

The two-seated valve (see fig. 24 and fig. 24.1) is structurally similar to the one shown in fig. 23, except that the outlet nozzle has a rib 25.2 in a plane parallel to the rib 25.1 in the axis of the outlet nozzle.

Thus, the flows of the working medium, when entering through the saddles 4 and 5 into the internal intersaddle chambers 8 and 9, are divided into two parts, each of which is directed into the external intersaddle chamber 22, and then through the outlet pipe C and into the process line.

The two-seated valve (see fig. 25) is structurally similar to the one shown in fig. 18, in addition to the fact that the rib 10 separating the intersaddle chamber consists of the inner 10.1 and outer 10.2 parts, while the inner part 10.1, on which the supports of the rod 11 of the shutter 7 are located, is structurally made of a single, removable, node 13, which includes itself saddles 4 and 5, shutter 7 with its rod supports 11, as well as connecting node 14.

When disassembling the two-seated valve fig. 25 (see Fig. 26), the cover 15 is first removed, after which the removable assembly 13 is removed (see Fig. 27 and its projection view in Fig. 28).

The two-seated valve (see Fig. 29) is structurally similar to the one shown in Fig. 18, in addition to the fact that between the supports of the rod 11 of the shutter 7, on the rib 10, a piston actuator 16 (supply of pulse lines is not shown) is made of the drive shutter 7.

At the same time, the piston 17 of the executive mechanism is made together with the shutter 7.

When a pressure drop occurs on the piston 17, the shutter 7 will begin to move, as a result of which the passage section of the valve shutter changes.

The two-seated valve (see Fig. 30) is structurally similar to the one shown in Fig. 29, except that a spring 18 is made between the piston 17 and the rod support 11 of the shutter 7.

When the pressure in the working cavities of the executive mechanism 16 disappears, the shutter 7 will move depending on the characteristics of the spring, that is, if the spring 18 is a compression spring, then the shutter 7 will open, and if the spring 18 is a tension spring, then the shutter 7 will close.

The two-seated valve (see Fig. 31) is structurally similar to the one shown in Fig. 29, except that a partition 19 is made between the shutter rod 7, which exits from the executive mechanism 16 through the rod support 11 into the intersaddle chamber 9, and the working environment of the valve.

When moving the shutter 7, the partition 19 moves along the support of the rod 11 and prevents the direct influence of the working medium of the valve on the shutter rod 7.

The two-seated valve (see fig. 32 and fig. 32.1) is structurally similar to the one shown in fig. 18, except that between the supports of the rod 11 of the shutter 7, a mechanical drive 20 is made, for example, a worm or ball-screw transmission, which has a kinematic connection 20.1 with the shutter rod 7.

The torque of the mechanical drive 20 through the kinematic connection 20.1 is transformed into a linear movement of the shutter 7, as a result of which the cross-section of the valve changes.

The two-seated valve (see Fig. 33) is structurally similar to the one shown in Fig. 32, except that a partition 19 is made between the shutter rod 7, which exits from the mechanical drive 20 through the rod support 11 into the interseat chamber 9, and the working environment of the valve.

When moving the shutter 7, the partition 19 moves along the support of the rod 11 and 60 prevents the direct influence of the working medium of the valve on the shutter rod 7.

The two-seated valve (see Fig. 34) contains a body consisting of two parts 1.1 and 1.2, where parts of the body 1.1 and 1.2 form an inlet nozzle 2, an outlet nozzle 3, a suprasaddle chamber 6, internal intersaddle chambers 8 and 9, an external intersaddle chamber 22, rib 10.2, as well as seats for the removable assembly 13, which includes saddles 4 and 5, shutter 7 with its rod supports 11, rib 10.1 and connecting assembly 14.

Disassembly of the two-seated valve fig. 34 can take place in the following sequence (see Fig. 35) - after removing the cover 15, the removable unit 13 is removed, then the parts of the body 1.1 and 1.2 are disconnected.

The two-seated valve (see Fig. 36) contains a body consisting of three parts 1.1, 1.2 and 1.3, where parts of the body 1.1, 1.2 and 1.3 form the inlet pipe 2, outlet pipe 3, suprasaddle chamber 6, internal intersaddle chambers 8 and 9 , an external intersaddle chamber 22, a rib 10.2, as well as seats for a removable unit 13, which includes saddles 4 and 5, a shutter 7 with its rod supports 11, a rib 10.1, a piston actuator 16 (impulse lines are not shown) and connecting node 14.

Disassembly of the two-seated valve fig. 36 can proceed in the following sequence (see fig. 37) - parts of the housing 1.1 and 1.2 are disconnected, part of the housing 1.3 is removed, and then the removable unit 13 is removed.

The two-seated valve (see Fig. 38) contains a body consisting of two parts 1.4 and 1.5, where parts of the body 1.4 and 1.5 form an inlet nozzle 2, an outlet nozzle 3, a suprasaddle chamber 6, internal intersaddle chambers 8 and 9, an external intersaddle chamber 22, rib 10.2, as well as seats for the removable unit 13, which includes saddles 4 and 5, the shutter 7 with its rod supports 11, rib 10.1, the piston actuator 16 (impulse lines are not shown) and the connecting unit 14.

Disassembly of the two-seated valve fig. 38 can proceed in the following sequence (see fig. 39) - parts of the housing 1.4 and 1.5 are disconnected and then the removable assembly 13 is removed.

Claims (27)

FORMULA OF THE INVENTION 1. A double-seated valve containing a body, suprasaddle and intersaddle chambers, inlet and outlet nozzles, two coaxially located saddles and a valve interacting with them, consisting of a stem and two profiled plates, which is distinguished by the fact that the intersaddle chamber has a parallel rib the plane of the saddles, which divides the intersaddle chamber into two parts, and the shutter rod guides are made in the rib. 2. A double-seated valve according to claim 1, which is characterized by the fact that the outlet nozzle is additionally equipped with a rib in a plane parallel to the rib that separates the interseat chamber. C. Bisaddle valve according to claim 1 or 2, which is characterized by the fact that the rib separating the intersaddle chamber is made of two parts; at the same time, one part of the rib is part of the intersaddle chamber, and the second part is part of an additional construction that forms a single removable assembly, which includes, at a minimum, the upper and lower saddles, the shutter with its rod guides. 4. A double-seated valve according to any of claims 1-3, which is characterized by the fact that an executive mechanism, such as a piston, is additionally made between the guides of the shutter rod. 5. A two-seated valve according to claim 4, which is characterized by the fact that the drive element, for example, a piston, of the executive mechanism is made integral with the shutter rod. 6. A double-seated valve according to claim 4 or 5, which is characterized by the fact that the guides of the rod of the executive mechanism are shutter guides. 7. A double-seated valve according to any of claims 4-6, which is characterized by the fact that a spring is made between the drive element, for example, the piston, of the executive mechanism and one of the valve stem supports. 8. A double-seated valve according to any one of claims 4-7, which is characterized by the fact that at least one partition is made between the rod coming out of the executive mechanism into the inter-seated chamber and the working medium of the valve. 9. A double-seated valve according to any of claims 1-3, which is characterized by the fact that between the guides of the shutter rod, a mechanical drive of the shutter rod is additionally made, for example, in the form of a worm or ball-screw transmission. 10. A double-seated valve according to claim 9, which is characterized by the fact that a media separator is made between the rod coming out of the mechanical drive into the inter-seated chamber and the working environment of the valve. 11. A double-seated valve according to any one of claims 1-10, characterized in that the valve body 60 is made of at least two parts. 12. A double-seat valve containing a body, inlet and outlet nozzles, two supra-seat chambers and two inter-seat chambers, where the first inter-seat "internal" chamber is formed by two partitions, the first of which is fixed on the walls of the body along the movement of the working medium to the valve in such a way, that its plane is perpendicular to the axis of the inlet nozzle, and the second is installed after the valve between the seats in such a way that its plane is perpendicular to the axis of the outlet nozzle, as a result of which the second "external" interseat chamber is formed by the flow part of the valve body between the internal interseat chamber and the outlet nozzle, two coaxially located saddles and a shutter interacting with them, consisting of a rod and two profiled plates, which is characterized by the fact that the internal intersaddle chamber has a rib parallel to the plane of the saddles, which divides the internal intersaddle chamber into two parts, and the shutter rod guides are made in the rib. 13. Two-seated valve according to claim 12, which is characterized by the fact that the outer intersaddle chamber is additionally equipped with a rib in a plane parallel to the rib separating the inner intersaddle chamber. 14. Two-seated valve according to claim 12 or 13, which is characterized by the fact that the outlet nozzle is additionally equipped with a rib in a plane parallel to the rib that separates the inner interseat chamber. 15. A double-seated valve according to any of claims 12-14, which is characterized by the fact that the inner interseat chambers are additionally equipped with ribs in the plane formed by the axis of the shutter rod guides and the axis of the inlet nozzle. 16. A double-seated valve according to any of claims 12-15, which is characterized by the fact that the external interseat chamber is additionally provided with a rib in the plane formed by the axis of the shutter rod guides and the axis of the outlet nozzle. 17. A two-seat valve according to any of claims 12-16, which is characterized by the fact that the outlet nozzle is additionally equipped with a rib in the plane formed by the axis of the shutter rod guides and the outlet nozzle axis. 18. Bisaddle valve according to any one of claims 12-17, which is characterized in that the rib separating the internal intersaddle chamber is made of two parts; at the same time, one part of the rib is a part of the intersaddle chamber, and the second part is a part of the additionally made ZO structure, which forms a single removable unit, which includes, at a minimum, the upper and lower saddles, the shutter with its rod guides. 19. A two-seat valve according to any of claims 12-18, which is characterized by the fact that an executive mechanism, for example, a piston, is additionally made between the shutter rod guides. 20. A double-seated valve according to claim 19, which is characterized by the fact that the drive element, for example, the piston, of the executive mechanism is made integral with the shutter rod. 21. A two-seated valve according to claims 19 or 20, which is characterized in that the guides of the executive mechanism are the guides of the shutter rod. 22. A double-seated valve according to any one of claims 19-21, which is characterized by the fact that a spring is made between the drive element, for example a piston, of the executive mechanism and one of the valve stem supports. 23. A double-seated valve according to any one of claims 19-22, which is characterized by the fact that at least one partition is made between the rod coming out of the executive mechanism into the internal interseated chamber and the working environment of the valve. 24. A double-seated valve according to any of claims 12-18, which is characterized by the fact that between the guides of the shutter rod, a mechanical drive of the shutter rod, such as a worm or ball-screw transmission, is additionally provided. 25. The double-seated valve according to claim 24, which is characterized by the fact that a media separator is made between the rod coming out of the mechanical drive into the internal inter-seated chamber and the working environment of the valve. 26. 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