RU164942U1 - THROTTLE HYDRAULIC DEVICE - Google Patents

Abstract

1. A throttle hydraulic device comprising a housing, an inner elastic shell of the housing, bandages of the inner elastic shell of the housing forming the first chamber, and also a core located inside the housing, the outer elastic shell of the core, bandages of the outer elastic shell of the core, forming the second chamber, forming together with the first camera throughput channel. 2. The throttle hydraulic device according to claim 1, wherein the bandages of the inner elastic shell of the body forming the first chamber are spaced equally, and the bandages of the outer elastic shell of the core forming the second chamber are spaced with the same equal spacing. The throttle hydraulic device according to claim 2, wherein the bandages of the inner elastic shell of the body and the bandages of the outer elastic shell of the core alternate with each other and are located in parallel planes with an offset relative to each other. The throttle hydraulic device according to claim 2, wherein the bandages of the inner elastic shell of the body and the bandages of the outer elastic shell of the core are arranged at equal intervals in pairs in the same plane. The throttle hydraulic device according to claim 1, wherein in the first and second chambers the control medium is liquid or gas.

Description

The claimed utility model relates to the field of pipe fittings and can be used in shipbuilding, petrochemical and other industries.

Known hydraulic valve according to patent GB 2140895 (publ. 5.12.1984), which is used as a throttle valve in an internal combustion engine. The air flow passes through a pipe section having a flexible wall and separating the pipe from an adjacent chamber, so that a change in pressure in the chamber bends the flexible wall and thus causes a change in the internal cross section of the pipe section. In addition, the valve has a bypass pipe through which a small amount of air can pass for the engine to idle. The disadvantage of the hydraulic valve is a narrow scope, because This valve design is not designed to reliably shut off fluid flow, as well as low vibroacoustic characteristics. Common signs of this valve with the claimed device is the presence of a flexible pipe wall (inner elastic shell of the body), an adjacent chamber (first chamber).

Known shut-off valve according to patent JP 09137868 (publ. 05.27.1997), which is designed to isolate the flow. The technical solution consists in the fact that the shutoff valve consists of a valve casing, a sleeve, which is made of elastic material forming a tight space, a core that can be pressed against the sleeve, a supporting element to support the core, and an outlet for communication with the tight space of the sleeve . Fluid under pressure is introduced into the sealed space, the sleeve is inflated to the axis of the valve and pressed against the core. The disadvantage of the shutoff valve is that reliable flow isolation is provided only for flows with a small pressure drop, as well as low vibration-acoustic characteristics.

Common features of a shut-off valve according to JP 09137868 with the claimed throttle hydraulic device are the presence of a valve housing (housing), a sleeve (inner elastic shell of the housing), a tight space between the housing and the sleeve (first chamber), core (core).

The closest in technical essence to the claimed throttle hydraulic device is a technical solution according to patent RU 2543085 (Fig. 3, patent publ. 02.27.2015). The control valve according to the third embodiment contains a housing (throttle hydraulic device housing), with outlet and inlet openings (inlet and outlet of the throttle hydraulic device), a rod (core), two control cavities (first and second chambers) formed by hollow elastic bodies (elastic shells )

The disadvantages of this technical solution is the possibility of turbulent flow in the control cavity of the pipe, which will lead to an increase in acoustic noise and vibration, as well as insufficient throttling efficiency. In the technical solution according to the patent RU 2543085, the contact area of the first and second hollow elastic organs is small, which leads to insufficiently reliable blocking of the flow.

The technical result of the claimed utility model is to improve the vibro-acoustic characteristics, increase the throttling efficiency, as well as more reliable, in comparison with the prototype, shut off the fluid flow in the pipeline.

The technical result is achieved due to the fact that the throttle hydraulic device comprises a housing, an inner elastic shell of the housing, bandages of the inner elastic shell of the housing forming the first chamber, as well as a core located inside the housing, the outer elastic shell of the core, bandages of the outer elastic shell of the core forming the second a camera forming a passage channel with the first camera. At the same time, due to the use of control chambers with elastic walls (shells) of a large area, the vibro-acoustic characteristics are improved, due to the streamlined shape of the passage channel formed by the corrugation, the throttling efficiency is improved and the vibro-acoustic characteristics of the device are further improved, due to the increase in the contact area of the corrugated elastic shells, the flow shutoff reliability is increased.

In the throttle hydraulic device, the bandages of the inner elastic shell of the body forming the first chamber can be arranged with equal spacing, and the bandages of the outer elastic shell of the core forming the second chamber can be spaced with the same equal spacing, due to which the vibroacoustic characteristics and efficiency are further improved throttling due to improved controllability of the fluid (gas) flow conditions.

In the throttle hydraulic device, the bandages of the inner elastic shell of the body and the bandages of the outer elastic shell of the core can alternate with each other and are located in parallel planes with an offset relative to each other. With this design of the device, the length of the passage channel increases, due to this, the laminar regime of the fluid flow is maintained, which further improves the vibroacoustic characteristics. Significantly increases the reliability of the flow shutoff due to the larger contact area of the shells (the formation of a castle connection).

In the throttle hydraulic device, the bandages of the inner elastic shell of the body and the bandages of the outer elastic shell of the core can be arranged at equal intervals in pairs in the same plane, while the throttling efficiency is further increased due to compression-expansion of the flow in the channel.

In the throttle hydraulic device in the first and second chambers, the control medium may be liquid or gas. In particular, seawater, hydraulic fluid, such as PGW, or air can be used as a control medium.

The essence of the utility model is illustrated by schematically executed drawings.

In FIG. 1 shows a throttle hydraulic device in which the rings (bandages) of the inner elastic shell of the body and the rings (bandages) of the outer elastic shell of the core alternate with each other and are located in parallel planes offset from each other in the “channel open” mode.

In FIG. 2 - throttle hydraulic device in which the rings (bandages) of the inner elastic shell of the body and the rings (bandages) of the outer elastic shell of the core are alternated between each other and are located in parallel planes offset from each other in the "partial overlap of the channel" mode.

In Fig. 3, a throttle hydraulic device in which the rings (bandages) of the inner elastic shell of the body and the rings (bandages) of the outer elastic shell of the core alternate with each other and are located in parallel planes offset from each other in the “channel closed” mode.

In FIG. 4 - throttle hydraulic device in which the rings (bandages) of the inner elastic shell of the body and the rings (bandages) of the outer elastic shell of the core are arranged at equal intervals in pairs in the same plane in the "channel open" mode.

In FIG. 5 - throttle hydraulic device in which the rings (bandages) of the inner elastic shell of the body and the rings (bandages) of the outer elastic shell of the core are arranged at equal intervals in pairs in the same plane in the "partial overlap of the channel" mode.

In FIG. 6 - rings (bandages) of the inner elastic shell of the body and rings (bandages) of the outer elastic shell of the core are arranged at equal intervals in pairs in the same plane in the "channel closed" mode.

The figures show:

1 - housing throttle hydraulic device;

2 - inner elastic shell of the body;

3 - rings (bandages) of the inner elastic shell of the body;

4 - the first camera;

5 - core;

6 - outer elastic shell of the core;

7 - rings (bandages) of the outer elastic shell of the core;

8 - the second camera;

9 - throughput channel;

10 - input throttle control device;

11 - output throttle control device;

12 - core fasteners;

13 - pipe supply of the control medium to the first chamber;

14 - pipe supply of the control medium to the second chamber.

A throttle hydraulic device comprising a housing 1, an inner elastic shell 2 of the housing 1, bandages 3 made in the form of rings, an inner elastic shell 2 of the housing 1, forming the first chamber 4, and also a core 5 located inside the housing 1, the outer elastic shell 6 of the core 5, bandages 7, which are made in the form of rings, of an outer elastic shell of the core, forming a second chamber 8, which forms a passage channel 9 with the first chamber. The first chamber 4 and the second chamber 8 act as control chambers. Bandages 3 and 7 can be made in the form of a steel spiral.

In FIG. Figures 1-6 show a variant of a throttle hydraulic device in which the rings (bandages) of the inner elastic shell of the body forming the first chamber are spaced at equal intervals, i.e. with equal pitch, and the rings (bandages) of the outer elastic shell of the core forming the second chamber are located with the same equal gap, i.e. with equal steps.

In FIG. 4-6, a throttle hydraulic device is shown in which rings (bandages) of the inner elastic shell of the body and rings (bandages) of the outer elastic shell of the core are arranged at equal intervals in pairs in the same plane (opposite each other).

The operation of the throttle hydraulic device is carried out in 3 main modes (Fig. 1-6).

In the first mode, the "throttle is open" (Fig. 1, 4), a control medium is supplied to the first and second chambers 4 and 8 with a pressure P _upl equal to or lower than the flow pressure in the passage channel 9. In this case, chambers 4 and 8 are not deformed or slightly deformed , do not block the flow and do not give additional resistance to the movement of liquid in the passage channel 9. The passage channel 9 is fully open, and the liquid in it moves with a laminar flow.

In the second mode, "partial overlap of the channel" (Fig. 2, 5), a fluid flow is supplied to the inlet 10 of the throttle hydraulic device, while a control medium is supplied to both chambers 4 and 8 under a pressure P _upr2 greater _{than the} fluid pressure in the flow. Chambers 4 and 8 are deformed in the form of a corrugation, and the passage channel 9 partially overlaps.

If the throttle hydraulic device contains rings (bandages) located offset from each other (Fig. 2), then in this mode the elastic shells 2 and 6 are deformed so that the passage channel 9 takes on a wave-like shape. Disturbances are introduced into the fluid flow, but due to the elongation of the passage channel 9 while keeping its cross section constant, laminarization of the flow is ensured.

In this mode and with such a design of the throttle hydraulic device, a reduction in the level of vibration and noise is achieved by maintaining the fluid flow in laminar mode. In addition, vibration is reduced due to flow damping by the elastic shells of the throttle hydraulic device, and also with this device design a soft throttling of the flow is carried out.

If in the throttle hydraulic device the rings (bandages) 3 of the inner elastic shell of the body and the rings (bandages) 7 of the outer elastic shell of the core are located opposite each other, then in the "partial overlap of the channel" mode (Fig. 5), the passage channel 9 is formed by alternating sections of narrowing and expansion formed by the shells 2 and 6 of the throttle hydraulic device. In this case, the throttling efficiency is increased. In addition, noise and vibration are reduced due to flow damping by the elastic shells of the throttle hydraulic device.

The next operating mode of the throttle hydraulic device “the channel is closed” (Fig. 3, 6) is carried out by reliably shutting off the fluid flow, in which a control medium is supplied to both control chambers 4 and 8 with a pressure (P _{control 3} ), higher than the fluid pressure and sufficient for deformation shells, leading to a maximum increase in the volume of the chambers in the passage channel 9. The inner elastic shell 2 of the body and the outer elastic shell 6 of the core are closed, forming a lock connection (Fig. 3) or multiple contacts, overlap flowing (Fig. 6). Significant reliability of the shutoff of the fluid flow is due to the increase, compared with the prototype, the contact area of the two shells 2 and 6 and the effect of the castle.

Thus, the throttle hydraulic device acts as a shut-off device, providing reliable shutoff of the fluid flow in the pipeline, as well as an effective throttle with improved vibro-acoustic characteristics.

Claims (5)

1. A throttle hydraulic device comprising a housing, an inner elastic shell of the housing, the bandages of the inner elastic shell of the housing forming the first chamber, and a core located inside the housing, the outer elastic shell of the core, the bandages of the outer elastic shell of the core, forming the second chamber, forming together with The first camera has a throughput channel. 2. The throttle hydraulic device according to claim 1, in which the bandages of the inner elastic shell of the housing forming the first chamber are spaced equally, and the bandages of the outer elastic shell of the core forming the second chamber are spaced with the same equal spacing. 3. The throttle hydraulic device according to claim 2, in which the bandages of the inner elastic shell of the body and the bandages of the outer elastic shell of the core alternate with each other and are located in parallel planes with an offset relative to each other. 4. The throttle hydraulic device according to claim 2, wherein the bandages of the inner elastic shell of the body and the bandages of the outer elastic shell of the core are arranged at equal intervals in pairs in the same plane. 5. The throttle hydraulic device according to claim 1, in which in the first and second chambers the control medium is liquid or gas.

Images