RU86765U1 - PRESSURE REGULATOR - Google Patents

Abstract

A pressure regulator comprising a housing with inlet and outlet coaxial nozzles and with an inner cylindrical insert, muffled on one side, perpendicular to the axis of the nozzles and having an input side flow window and an output flow adjustable annular gap formed at the output edges of the cylindrical insert, a sensing element connected with a valve, characterized in that an expansion compensation chamber is connected to the outlet pipe having coaxial inlet and outlet pipes and an internal a plate associated with the compensation chamber and located above the inlet pipe of the chamber with the formation of an annular flow gap between the plate and the camera.

Description

The utility model relates to control devices, namely, fluid pressure controllers, and can be used to control, for example, flow-pressure characteristics of rain-forming devices on sprinkler machines.

Known pressure regulator (see patent for the invention of the Russian Federation "In-line pressure regulator" No. 2096819, M.Kl .. G05D 16/06, F16K 17/04, 1994), containing a housing with a Central inner part, input and output cavities, between which there is a regulatory body made in the form of a saddle and a locking element connected by a rod with a spring-loaded sensing element, defining a cavity with a spring of the sensing element located in it and a control cavity.

The disadvantage of this pressure regulator is the insufficient quality of regulation of the parameters of the output stream due to its direct-flow movement.

A pressure regulator is also known (see the patent for the invention of the Russian Federation “Pressure regulator” No. 2003118878, M.cl. G05D 16/06, 2003), comprising a housing with inlet and outlet coaxial nozzles and with an internal cylindrical insert (compensation cavity) plugged with one side, perpendicular to the axis of the nozzles and having an input lateral flow window and an output flow adjustable annular gap formed at the output edges of the cylindrical insert, a sensing element associated with the valve.

The disadvantage of this pressure regulator is also the lack of quality control of the parameters of the output stream due to the uneven distribution of the stream leaving the inner cylindrical insert, and then from the pressure regulator itself.

The purpose of the proposed utility model is to improve the quality of regulation of the parameters of the output stream.

This goal is achieved by the fact that in the known pressure regulator comprising a housing with inlet and outlet coaxial nozzles and with an inner cylindrical insert, muffled on one side, perpendicular to the axis of the nozzles and having an input lateral flow window and an output flow-through adjustable annular gap formed at the output the edges of the cylindrical insert, a sensing element associated with the valve, an expansion compensation chamber is connected to the outlet pipe having an input and output waist and inner tubes Tarel associated with the compensation chamber and located above the inlet chamber to define an annular gap between the flow chamber and tareli.

In figure 1. shows a general view of the pressure regulator.

The pressure regulator includes a housing 1 with inlet 2 and outlet 3 coaxial nozzles and with an inner cylindrical insert 4, muffled on one side, perpendicular to the axis of the nozzles 2, 3 and having an input side flow window 5 and an output flow adjustable annular gap 6 formed at the weekend the edges 7 of the cylindrical insert 4, the sensing element 16, connected to the valve 8. To the output pipe 3 is connected to an expansion compensation chamber 9 having an input 10 and an output 11 coaxial pipes and inner packaging only 12, associated with the compensation chamber 9 and located above the inlet pipe 10 of the chamber 9 with the formation of an annular flow gap 13 between the plate 12 and the chamber 9. The valve 14 is connected by a rod 15 to the valve 8.

The pressure regulator operates as follows.

By changing the magnitude of the annular flow gap 6, regulation of the pressure at the outlet of the regulator is achieved.

The flow passage through the gearbox is possible only when the valve 14 connected to the valve 8 by means of the rod 15 moves away from the outlet edges (steel seat) 7 of the cylindrical insert 4. This occurs when the outlet pressure decreases and is no longer able to compensate for the spring tension force ( sensing element) 16, pressing on the valve 8.

After the termination of the fluid flow, the valve 14 remains open until the outlet pressure that presses on the valve 8 reaches a value sufficient to compensate for the tension force of the spring 16. When the balance between the outlet pressure and the tension force of the spring 16 is reached, the regulator closes.

The connection to the outlet pipe 3 of the pressure regulator of the expansion compensation chamber 9 with the inner plate 12 with the formation of an annular flow gap between the plate 12 and the chamber 9 allows you to align and stabilize the fluid flow emerging asymmetrically from the annular flow gap 6.

The efficiency of the utility model consists in improving the quality of controlling the parameters of the output stream by connecting to the output pipe an expansion compensation chamber that evens out the uneven distribution of the stream exiting the pressure regulator.

Claims (1)

A pressure regulator comprising a housing with inlet and outlet coaxial nozzles and with an inner cylindrical insert, muffled on one side, perpendicular to the axis of the nozzles and having an input side flow window and an output flow adjustable annular gap formed at the output edges of the cylindrical insert, a sensitive element connected with a valve, characterized in that an expansion compensation chamber is connected to the outlet pipe having coaxial inlet and outlet pipes and an internal a plate associated with the compensation chamber and located above the inlet pipe of the chamber with the formation of an annular flow gap between the plate and the camera.