RU2768439C1 - Device for supplying fluid working environment - Google Patents

Abstract

FIELD: hydrotransport.

SUBSTANCE: device relates to hydrotransport using gas pressure. The device for supplying a fluid working medium contains a housing 1 with an inlet pipe 2 for working gas and an outlet pipe 3 for a fluid working medium, in which a destructible sealing element 7 is installed. to the outlet pipe 3 and connected to the body 1, the collector 6 for the output of the fluid working medium and the pyrotechnic heater 8 installed in the collector 6, equipped with an activation system, which contains a sample 9 of a pyrotechnic composition sensitive to impact, a striker 12, in contact with the hitch 9, and a spring-loaded striker 13, located in the part of the heater body, made in the form of a pipe 19. In the body 1 of the device, a channel 22 for a fluid working medium is made, connected with the outlet pipe 3. The inner surface of the pipe 19 of the heater is commensurate with the height of the spring 18 in a free state and is made stepped. In this case, the entire part of the branch pipe 19 with a large diameter is located on the side opposite the striker 13, and its length is commensurate with the height of the spring 18 under the working load. The striker 13 is located in the part of the branch pipe 19 with a smaller diameter and with the help of the latch 14 is mechanically connected to the rod 20 installed inside the spring 18 with the ability to move the rod 20 with the striker 13 in the direction from the striker 12 at a distance not less than the value of the working stroke of the spring 18, with the output latch 14 in the part of the pipe 19 with a large diameter. At the other end of the rod 20, a limiter 21 is installed, which excludes the possibility of moving the rod 20 in the direction of the striker 12. In the channel 22 for the fluid medium, an indestructible sealing element 23 in the form of a piston with a pusher 25 is installed with the possibility of moving in the direction from the collector 16. The limiter 21 and the pusher 25 are pivotally connected by a two-arm lever 30 to each other and to the body 1 of the device.

EFFECT: increasing the level of reliability of operation of the device and increasing its warranty period.

2 cl, 1 dwg

Description

A device for supplying a fluid working medium (TRS) refers to hydraulic transport using the pressure of a working gas and can be used to supply various liquids to a consumer.

In the study of reference and information and patent funds, analogues of the invention were identified.

A device for supplying TRS is known, given in patent RU No. 2466327, IPC F16N 7/30, F16N 11/10, publication 11/10/2012, B.I. No. 31, containing a body with inlet and outlet pipes. Inside the housing there is a chamber made of an elastic material, having the shape of a glass in the longitudinal section, with its open side facing the outlet pipe. The camera is connected to the body. Outside the chamber, in front of the outlet pipe, a collector is installed with the possibility of outputting the TPC through it. The junction of the chamber with the body is located from the collector at a distance commensurate with the height of the chamber. A sealing element is installed in the outlet pipe. To operate this device, it is enough to use an external pressure source to supply working gas through the inlet pipe through an external pipeline into the housing. In this case, the extrusion of the TRS from the elastic chamber is ensured by turning the cylindrical part of its wall to the stop in the surface of the internal cavity of the housing and the bottom - into the collector.

The disadvantage of this analog is a large variation in operating time when triggered within the specified temperature operating conditions due to the fact that the dynamic viscosity of the TRS depends on temperature.

A device for supplying TRS is known, given in patent RU No. 2478867, IPC F16N 7/30, publication 10.04.2013, B.I. No. 10, containing a body with inlet and outlet pipes. Inside the housing there is a chamber made of an elastic material in the form of a cup, with its open side facing the outlet pipe and connected to the body, and a TPC outlet collector, which is installed outside the chamber in front of the outlet pipe. A destructible sealing element is installed in the outlet branch pipe, and a pyrotechnic heater is installed in the collector, containing the main (heating) charge and elements of the internal system for activating the heater (ignition of the main charge), made in the form of a pyrotechnic transceiver attachment with inlet and outlet channels. To connect the heater with the components and elements of the external actuation system (with the energy source necessary to ignite the transceiver attachment), a branch pipe is made in the heater housing. To operate this device, it is required to use an external pressure source in order to supply working gas through the external pipeline through the inlet pipe into the housing, and additionally, through the heater pipe, to ensure ignition of the transceiver attachment, from the combustion products of which the heater is triggered.

When this device is triggered, the extrusion of the TRS is provided, as in the previous analogue, by turning the chamber inside out. In this case, the TRS is heated by a heater and is more quickly squeezed out of the housing cavity. Due to this, in comparison with the previous analogue, the spread of the operating time of such a device when triggered within the specified temperature operating conditions is significantly reduced.

However, this device also has disadvantages, of which the main ones are:

- a complex operation circuit of the device due to the fact that two external components are required: a pressure source for supplying working gas through an external pipeline through the inlet pipe into the housing and an energy source for ignition through the heater pipe of the transceiver attachment, from which the heater is triggered;

- large dimensions and weight of the device due to the need to use external components and elements to activate the heater (ignition through the heater nozzle of the transceiver attachment);

- complex layout of the device at the application site.

It is also known a device for supplying TRS using the pressure of the working gas, given in patent RU No. 2631097 C1, IPC F16N 7/30, publication 18.09.2017, B.I. No. 26, containing a body with inlet and outlet pipes. Inside the housing there are: a chamber made of an elastic material in the form of a cup, with its open side facing the outlet pipe and connected to the body, a destructible sealing element installed in the outlet pipe, a TPC output manifold and a pyrotechnic heater installed in the manifold, equipped with an actuation system, which additionally contains a hitch impact-sensitive pyrotechnic composition, a spring-loaded striker and a striker in contact with an additional hitch. At the same time, in this device, the drummer is fixed in the initial position, in which the spring is in a state of full working deformation from the moment the device is manufactured until the moment it is triggered. In the process of operation of this device, the destructible sealing element moves under the action of the TPC pressure and, due to the mechanical connection, releases the striker. In this case, the extrusion of the TRS is provided, as in the previous analogue, by eversion of the chamber.

This device eliminates the shortcomings of previous analogues.

This device is selected for the prototype as the closest in technical essence and the achieved result.

However, this device, chosen as a prototype, also has disadvantages, of which the main ones are:

- insufficient warranty period;

- lowering the reliability of operation by the end of the warranty period.

These shortcomings are due to the installation of the spring in the working position during the manufacture of the device, since if the spring is in a state of full working deformation for a long time, its technical characteristics deteriorate significantly over time.

The objective of the present invention is to increase the warranty period of the device and increase the reliability of operation of the device by the end of the warranty period.

When using the proposed invention, the following technical result is achieved:

- increasing the reliability of the operation of the device due to the possibility of automatic installation of the spring in the working position (providing the working deformation) directly in the process of the operation of the device;

- ensuring the working deformation of the spring directly in the process of operation of the device increases the warranty period of the device.

The solution of the problem and the achievement of the technical result are ensured by the fact that in the device for supplying TRS using working gas pressure, containing a housing with an inlet for working gas and an outlet for TRS, in which a destructible sealing element is installed, a chamber made of elastic material is placed inside the housing in the form of a glass, with its open side facing the outlet pipe and connected to the body, the TRS output manifold and the pyrotechnic heater installed in the manifold, equipped with an activation system that contains a sample of a pyrotechnic composition sensitive to impact, a striker in contact with the sample, and a spring-loaded striker placed in the part of the heater body, made in the form of a branch pipe, and in the device body there is a channel for the TRS, communicated with the outlet branch pipe, according to the invention, the inner surface of the heater branch pipe at a length commensurate with the height of the spring in a free state, you the entire part of the branch pipe with a large diameter is located on the side opposite to the striker, and its length is commensurate with the height of the spring under the working load, while the striker in the part of the branch pipe with a smaller diameter is mechanically connected with a retainer to the rod located inside the spring with the possibility of moving the rod with the striker in the direction from the striker at a distance not less than the value of the working stroke of the spring, with the release of the latch into the part of the branch pipe with a large diameter, and at the other end of the rod there is a limiter that excludes the possibility of moving the rod in the direction of the striker, the channel for the TRS is made parallel to the axis the heater branch pipe, and an indestructible sealing element in the form of a piston with a pusher is installed in it with the possibility of moving in the direction from the collector, and the limiter and the pusher are pivotally connected by a two-arm lever to each other and to the device body.

The heater branch pipe can be made composite and one of its components can be made in the form of a removable sleeve with a stepped inner surface, in which a spring-loaded striker is installed.

The execution of the stepped inner surface of the heater nozzle at a length commensurate with the height of the spring in the free state, as well as the location of the entire part of the heater nozzle with a large diameter on the side opposite the striker, and making its length commensurate with the height of the spring under working load, firstly, allow when the device is triggered, it is optimal to use the technical characteristics of the spring to ensure the parameters of the device triggering and, secondly, they contribute to ensuring the possibility of automatically setting the spring to the working position (providing working deformation) directly when the device is triggered.

At the same time, the implementation in the part of the branch pipe with a smaller diameter with the help of a latch of the mechanical connection of the striker with the rod located inside the spring, with the possibility of moving the rod with the striker in the direction from the striker at a distance not less than the working stroke of the spring, with the release of the latch into the part of the branch pipe with a large diameter , provides, when the device is triggered, the possibility of using the energy of a compressed spring to activate the heater. It also allows, without any additional source of energy, to unlock the striker at the required time and provides the ability to automatically set the spring to its working position (providing working deformation) directly in the process of device actuation, which makes it possible to increase the level of reliability of the device operation and increase its warranty period. .

Installing a limiter on the other end of the rod, which excludes the possibility of moving the rod in the direction of the striker, eliminates the possibility of accidental operation of the heater.

The execution of the channel for the TRS parallel to the axis of the heater pipe, the installation in it with the possibility of moving in the direction from the collector of an indestructible sealing element in the form of a piston with a pusher, and the hinged connections of the limiter and the pusher with a two-arm lever between themselves and with the device body provide the possibility of automatically setting the spring to the working position (providing working deformation) directly in the process of operation of the device.

The implementation of the heater branch pipe as a composite, and one of its components - in the form of a removable sleeve with a stepped inner surface, in which a spring-loaded striker is installed, makes it possible to increase the safety of the process of assembling the heater during its manufacture.

Taken together, the essential features of the proposed device increase the reliability of operation of the device and increase its warranty period.

An example of the device execution is illustrated by an illustration, which shows a diagram of a device with a composite heater nozzle.

The proposed device comprises a housing 1 with an inlet pipe 2 for supplying working gas and an outlet pipe 3 for the output of TRS 4. An elastic chamber 5 is placed inside the housing 1. A collector 6 is installed in front of the outlet pipe 3 coaxially with the chamber 5. The chamber 5 is connected to the housing 1 at with the help of an insulating element in the form of a T-shaped shoulder, located approximately at half the height of the internal cavity. The passage channel of the outlet branch pipe 3 is displaced relative to the axis of the body 1 and is made in the form of separate sections located at different angles from the collector 6 to the junction with the transport highway TRS 4 (not indicated in the illustration). In the outlet pipe 3, located at a right angle relative to the axis of the body 1, there is a destructible sealing element 7 in the form of a cap with a membrane on its bottom.

A heater 8 is installed in the collector 6, in which pyrotechnic compositions are used:

- sensitive to impact - for igniter sample 9;

- sensitive to heat - for transceiver attachment 10;

- high-calorie, slow-burning - for the main charge 11.

The calorific value and burning rate of the pyrotechnic composition used for the manufacture of the main charge 11, as well as the mass of its working sample are selected from the condition of ensuring the required operating time of the device.

The hitch of the composition 9 is in contact with the striker 12. At the minimum guaranteed distance from the striker 12, a striker 13 is installed with the help of a latch 14. At least two stoppers 15 are used in the latch 14, each of which is made in the form of double cylinders with spherical surfaces at the ends. The stoppers 15 with their small diameter end rest against the groove on the support sleeve 16, and with the larger diameter end against the inner surface of the removable sleeve 17, which is commensurate in length with the height of the spring 18 in the free state, is an integral part of the branch pipe 19 and is made with a step. The length of the entire part of the removable sleeve 17 with a large hole diameter is commensurate with the height of the spring 18 under operating load, and the length of the remaining part with a smaller diameter - with the value of its stroke. The support sleeve 16 is installed at the end of the rod 20 from the side of the striker 13, in which a central blind hole is made for accommodating the support sleeve 16 and at least two side stepped holes for installing stoppers 15. Thus, the impactor 13 has a mechanical connection with the rod 20 and contacts with the spring 18, which, from the moment of assembly during the manufacturing process and until the moment the device is actuated, is in a state of preliminary deformation (compressed by one to two tenths of the working stroke) due to the use of the rod 20 passing inside the spring. To the working state (full working deformation), the spring 18 is compressed only at the beginning of the actuation process of the device.

Depending on the magnitude of the working force of the spring 18, the number of stoppers 15 is selected and the corresponding number of side stepped holes in the drummer 13 is made.

A limiter 21 is installed at the free end of the rod 20, which excludes the possibility of the rod moving towards the striker 13, but allows it to move in the opposite direction by a distance commensurate with the value of the working stroke of the spring 18.

Ignition hitch 9, transceiver hitch 10, striker 12, striker 13, support sleeve 16, removable sleeve 17 and spring 18 are located coaxially with each other and offset relative to the axis of the main charge 11, which is installed coaxially with the chamber 5 and the device body 1.

It should be noted that the support sleeve 16, as a separate part, may be absent in the device, and its structural elements, primarily a groove with the necessary geometric dimensions for the stoppers 15, can be made directly on the rod 20.

In the body 1, parallel to the axis of the branch pipe 19, in which the spring 18 with the striker 13 is located, a channel 22 is made, communicated with the outlet pipe 3. The following are installed in the channel 22: an indestructible sealing element in the form of a piston 23, a nut 24, limiting the stroke of the piston 23 at half level stroke of the spring 18, and the pusher 25 (the stroke of the piston 23 at the level of half the stroke of the spring is selected for this version of the device).

The limiter 21 (at the junction 26) and the pusher 25 (at the junction 27) between themselves and with the body 1 on a rigid support 28 (at the junction 29), removed from the pusher 25 at a distance commensurate with the size between the joints on the limiter 21 and pusher 25, are pivotally connected by a two-arm lever 30.

The distance at which the connection point 29 is removed from the connection point 27 compared to the size between the connection points 26 and 27 is chosen for this version of the device depending on the ratio of the working stroke of the spring 18 to the piston stroke 23, and in accordance with the rules of similarity of triangles . Accordingly, the lever 30 is installed so that, when the heater 8 is activated, it is possible to rotate relative to the junction 29 with simultaneous rotation and movement at the junction 26 by a distance commensurate with the working stroke of the spring 18, and at the junction 27 by a distance commensurate with the value of half her work progress.

Until the device is activated, the initial position of the lever 30 is maintained by the spring 18 and, if necessary, the fuse 31.

The present invention is not limited to the above example.

The device works as follows.

When a command is given to actuate the device, an external pressure source is switched on (not shown in the illustration). The working gas from the pressure source through the external pipeline through the nozzle 2 enters the housing 1 and reaches the wall of the chamber 5. Under the pressure of the working gas, the wall of the chamber 5 bends and turns out until it stops the cylindrical part of the wall in the surface of the internal cavity of the housing 1, and its bottom - in manifold 6. In the process of turning the chamber 5, the increasing pressure of the TPC 4, which enters through the holes and channels of the manifold 6, acts on the piston 23 and forces it to move towards the nut 24. As a result, the lever 30 begins to rotate relative to the junction 29. This triggers the fuse 31 (if any), and begin to move (in the direction opposite to the location of the striker 12) limiter 21, rod 20, support sleeve 16 with stoppers 15 and drummer 13. Spring 18 begins to compress. When moving the striker 13 in this direction in the sleeve 17 within the length of the inner hole with a small diameter due to the contact of the stoppers 15 with one end with a groove on the support sleeve 16, and the other end with the inner surface of the sleeve 17, the end of the rod 20 with the support sleeve 16 is held inside the drummer 13. Thus, the mechanical connection of the drummer 13 with the rod 20 is maintained. Therefore, the spring 18 continues to compress.

It should be noted that for the spherical ends of a larger diameter of the stoppers 15, the inner surface of the sleeve 17 serves as a copier, that is, a kind of analogue of the trajectory on which they must be during the time from manufacture to the start of actuation, and along which the contacting devices must move during actuation. with a groove on the support sleeve 16 spherical ends of the smaller diameter of these stoppers.

When moving the impactor 13 from the part of the sleeve 17 with a smaller diameter to its part with a larger diameter, the stoppers 15 move relative to the axis of the support sleeve 16 due to the spherical surfaces at their ends and, having moved away from it, exit the groove. Therefore, the support sleeve 16 is released from the stoppers 15 and unlocks the drummer 13. Thus, the mechanical connection of the drummer 13 with the rod 20 is broken.

By this moment, the spring 18 is compressed to the working state (full working deformation), and the rod 20 with the support sleeve 16 is completely removed from the striker 13. After that, the piston 23 rests against the nut 24 and its further movement stops. The lever 30 stops rotating about the joint 29 and stops.

At the same time, after release (release from mechanical connection with the support sleeve 16 on the rod 20), the striker 13 begins to move towards the striker 12. At the same time, the stoppers 15 reach the step at the border of the parts of the sleeve 17 with increased and reduced inner diameters. Due to the contact of the spherical ends with the inner surface of the sleeve 17, the stoppers 15 move closer to the axis of the striker. In this position of the stoppers, nothing prevents the drummer from moving towards the striker 12.

Therefore, under the action of the spring 18, the drummer 13 accelerates and contacts the striker, leading to sequential ignition and combustion of the pyrotechnic compositions 9, 10 and 11. The heat generated during the combustion of the main charge 11 heats the outer surfaces of the collector 6 and the heater 8, as well as TPC 4 in contact with them. After reaching a predetermined level of pressure TPC 4 in the bottom of the destructible sealing element 7 breaks the membrane. Under the action of the working gas pressure, the heated TRS 4, as it is squeezed out of the internal cavity of the housing 1, through the passage channel of the outlet pipe 3, along the transport line, enters the place of its consumption.

In the process of further increase in pressure, TRS 4, passing through the holes and channels of the collector 6, continues to be heated, and thus, is completely squeezed out to the consumer.

To re-activate the device, the destructible sealing element 7, the heater 8 and, if necessary, the fuse 31 are replaced, and the remaining elements can be reused. Chamber 5 is again filled with a given amount of TRS 4.

For the manufacture of chamber 5, a rubber mixture is used. Destructible sealing element 7 and piston 23 are made of aluminum alloys, and housing 1, collector 6 and components of the heater 8 are made of steel or titanium alloys.

When executing the design of the device according to the invention, the reliability of the operation of the device is increased by setting the spring to the working position (ensuring the working deformation) directly in the process of operation of the device, which increases the warranty period of the device.

Claims (2)

1. A device for supplying a fluid working medium using the pressure of a working gas, comprising a housing with an inlet for the working gas and an outlet for the fluid working medium, in which a destructible sealing element is installed, a chamber made of elastic material in the form of a glass is placed inside the housing, with an open side facing the outlet pipe and connected to the body, a fluid output manifold and a pyrotechnic heater installed in the manifold, equipped with an actuation system that contains a sample of a pyrotechnic composition that is sensitive to impact, a striker in contact with the sample, and a spring-loaded striker located in a part of the heater body , made in the form of a pipe, and in the body of the device there is a channel for a fluid working medium communicated with the outlet pipe, characterized in that the inner surface of the heater pipe is commensurate with the height of the spring in the free state and is made stepped, while part of the valve a large-diameter jaw is located on the side opposite to the striker, and its length is commensurate with the height of the spring under working load, the striker is located in the part of the branch pipe with a smaller diameter and, using a latch, is mechanically connected to the rod installed inside the spring with the possibility of moving the rod with the striker in the direction from the striker at a distance not less than the working stroke of the spring, with the release of the latch into the part of the branch pipe with a large diameter, and at the other end of the rod a limiter is installed, which excludes the possibility of moving the rod in the direction of the striker, the channel for the fluid working medium is made parallel to the axis of the heater branch pipe, and in an indestructible sealing element in the form of a piston with a pusher is installed in it with the possibility of moving in the direction from the manifold, and the limiter and the pusher are pivotally connected by a two-arm lever to each other and to the body of the device. 2. A device for supplying a fluid working medium according to claim 1, characterized in that the heater nozzle is made of composite and one of its components is made in the form of a removable sleeve with a stepped inner surface.

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