RU154635U1 - VALVE HOUSING - Google Patents

Abstract

1. The valve body, containing the cavity of the suction and discharge, characterized in that it is made in the form of a parallelepiped, including two end and four side surfaces, a Central through longitudinal hole of a cylindrical shape, a suction and discharge holes connecting the Central hole with the side surfaces, and the Central hole made in the form of four consecutive sections with increasing diameter: - the first section located at the end surface mating with the cylinder m, made with the possibility of placing a cylinder liner in it; - the second section is made with the possibility of free placement of the suction part of the valve and the unhindered passage of gas through the valve; - the third section is made with the possibility of centering the inside of the combined valve; - the fourth section is made with the possibility of centering the valve lantern and an end cap; moreover, between the first and second sections on the inner surface of the housing there is an annular protrusion made concave from the side of the second section, strips and suction and discharge are designed as undercuts the inner surface of the housing, wherein the suction cavity located between the second and third portions, and the discharge cavity - between the third and fourth portions, the suction and discharge openings are arranged on different side poverhnostyah.2. The housing according to claim 1, characterized in that on the end surface of the housing, mating with the cylinder, there is an annular rim made with an annular groove. 3. The housing according to claim 2, characterized in that on one of the side surfaces of the housing

Description

Technical field

The utility model relates to the field of mechanical engineering, in particular to the field of compressor engineering, and can be used in the construction of senior stages of multistage compressors.

State of the art

Known detachable valve body, consisting of an input half-housing and an output half-housing, which are interconnected using connecting flanges (RF patent for utility model No. 125286 "Control valve", IPC F16K 1/12 (2006.01), F16K 27/02 (2006.01) published on 02.27.2013). The inlet of the inlet half-shell and the outlet of the outlet half-shell are round. An annular groove is made at the interface between the half-shells. The output half-housing is equipped with a pipe for supplying additional liquid medium. The utility model relates to the field of valve engineering and can be used in hot water systems.

Known valve body with flow channels and slots in which the locking plates are placed (RF patent for the invention No. 20144492 "Piston compressor", IPC (5) F04B 39/10, publ. 06/15/1994). The valve body has cavities open from the side of the cover. The technical solution can be used in reciprocating compressors with a combination valve. However, the presence of separate suction and discharge slots reduces the cross-sectional area for gas passage, which significantly increases the gas-dynamic resistance of the valve body, and makes it unsuitable for use on the upper stages of the compressor.

Known valve body containing seats, discharge and suction channels blocked by a deformable locking body in the form of a box-section beam (USSR author's certificate No. 723259 "Combined self-acting supercharger valve", IPC (2) F16K 15/16 published on 03/27/1980). The disadvantages of the technical solution is the use of spatially separated channels for the removal and supply of medium in the plane of interface of the supercharger with the valve. This leads to the fact that the medium is supplied to the supercharger through one region of the cross section of the supercharger in the aforementioned plane, and is diverted from another region. This causes a decrease in throughput and an increase in the hydrodynamic resistance of the valve body.

The closest technical solution chosen as a prototype is a valve box with suction and discharge cavities (USSR author's certificate No. 1037007 “Valve assembly of a piston compressor”, IPC F16K 15/16, F04B 39/10, publ. 08.23.1982). The disadvantages of the prototype is the design of the valve box, in which a significant part of its output section is blocked. In addition, in the output section there are spatially separated channels for removal and for supplying the medium. This leads to the fact that the medium is introduced into the compressor cylinder through one area of the outlet section of the valve box, and is discharged from another area. The specified causes a decrease in throughput and an increase in the hydrodynamic resistance of the valve box.

The technical problem to which the claimed utility model is directed is to optimize the use of the cross section of the valve body mating with the compressor cylinder.

The technical result of the proposed technical solution is to increase the throughput of the valve body, reducing the hydrodynamic resistance of the valve box.

Disclosure of the claimed technical solution

The essence of the claimed technical solution lies in the fact that the valve body contains a suction and discharge cavity. It differs in that it is made in the form of a parallelepiped with two end and four side surfaces. In the valve body are made:

- a central through longitudinal hole of a cylindrical shape;

- suction and discharge openings connecting the central hole to the side surfaces.

The central through longitudinal hole is made in the form of four successive sections with increasing diameter:

- the first section located at the end surface mating with the cylinder is made with the possibility of centering the housing with the cylinder liner;

- the second section is made with the possibility of free placement of the suction part of the valve and the unhindered passage of gas through the valve;

- the third section is arranged to center the inside of the combined valve;

- the fourth section is configured to center the valve lantern and end cap.

Moreover:

- between the first and second sections on the inner surface of the housing is an annular protrusion made concave from the side of the second section;

- between the second and third sections there is a suction cavity, made in the form of a recess of the inner surface of the housing;

- between the third and fourth sections there is a discharge cavity, made in the form of a recess in the inner surface of the housing.

The above essence is a set of essential features of the claimed technical solution, ensuring the achievement of the claimed technical results. An additional technical result is achieved due to the fact that the Central through hole of the valve body is made in the form of four consecutive sections with increasing diameter.

On the end surface of the valve body, mating with the cylinder, preferably there is an annular rim made with an annular groove.

An opening for supplying lubricant is preferably made on one of the side surfaces of the valve body. This hole is connected to an annular groove made in the annular rim, a hole-channel made at an angle to the main axis of the housing.

On the side surfaces of the housing around the suction and discharge holes, blind threaded holes are preferably made.

On the side surfaces around the suction and discharge openings, it is desirable to coaxially groove.

On the end surface of the housing from the side of the lid, around the central hole, it is advisable to make blind threaded holes.

In the housing, it is desirable to make through holes located along its faces.

The valve body can be made in the form of a parallelepiped with cut ribs.

The authors of the claimed technical solution made a prototype of this solution, the tests of which confirmed the achievement of technical results.

Description of drawings

In FIG. 1 - shows the inventive valve body.

In FIG. 2 - section of the valve body, 3D model.

The valve body 1 (Fig. 1) is made in the form of a parallelepiped with cut ribs. The valve body 1 includes two end surfaces 2 and four side surfaces 3. The body 1 comprises a central through-hole longitudinal hole 4 of a cylindrical shape, a suction hole 5 (FIG. 2) and a discharge hole 6 intersecting the central through-hole longitudinal hole 4, and an inlet 7 grease to the cylinder (not shown in FIG.). On the end surface 2 of the housing 1, mating with the cylinder, there is an annular rim 8 made with an annular groove 9, along which the housing 1 is centered with the cylinder bore.

The Central through longitudinal hole 4 is made in the form of four consecutive sections with increasing diameter:

- the first section 10, located at the end surface 2, mating with the cylinder, is configured to place a cylinder liner in it (not shown in FIG.);

- the second section 11 is made for the free placement of the suction part of the valve and the unhindered passage of gas through the valve;

- the third section 12 is made for centering the inner part (not shown in Fig.) of the combined valve (hereinafter the valve);

- the fourth section 13 is made for centering the valve lantern and end cap (not shown in Fig.).

Moreover:

- between the first section 10 and the second section 11 on the inner surface of the housing 1 is an annular protrusion 14 made concave from the side of the second section 11;

- between the second section 11 and the third section 12, there is a suction cavity 15, made in the form of a recess of the inner surface of the housing 1, designed to enter gas through the suction hole 5 into the cylinder through the inner part of the valve;

- between the third section 12 and the fourth section 13, there is a discharge cavity 16, made in the form of a recess of the inner surface of the housing 1, designed for the free exit of gas into the discharge hole 6.

The hole 7 for supplying lubricant is made on the side surface 3, it is desirable so that it, when installing the housing 1 on the cylinder, is on top. The hole 7 is connected to the annular groove 9, made in the annular rim 8, the hole channel 17, made at an angle (15 degrees) to the main axis of the housing 1. The hole channel 17 provides lubricant to the cylinder. The suction hole 5 and the discharge hole 6 can be performed on any side surface 3 of the housing 1 (but only on different relative to each other for the possibility of fixing them). On the lateral surfaces 3 of the housing 1 around the suction hole 5 and the discharge hole 6, preferably blind threaded holes 18 are made for fastening the flange (and then the pipe) with studs (not shown in Fig.).

On the side surfaces 3 around the suction hole 5 and the injection hole 6, a recess 19 is preferably coaxially made for a more tight and tight contact of the flange with the housing 1.

For fastening the housing 1 to the cylinder with studs, through holes 20 are made in the housing 1 and located along the faces.

On the end surface 2, from the side of the cover, around the central hole 4 there are blind threaded holes 21 for fastening by the studs of the cover, which holds the valve lantern, which in turn holds the valve.

At the beginning of the hole 7 for the supply of lubricant, a thread is made and a recessed seating surface 22 for screwing the fitting (not shown in Fig.) Through which the lubricant will be supplied.

The valve body (1) can be made of steel - 35 GOST 1050-88, it can also be made of higher quality materials. Housing (1) is designed for operating pressure from 14.0 MPa to 25.0 MPa.

The order of use.

The inner part of the valve is inserted into the central through hole 4 of the housing 1. The valve in the assembly is installed and secured accordingly between the cylinder and the cover, so that part of the cylinder liner is located in the first section 10 of the central through hole 4. To the suction 5 and pressure 6 holes of the housing 1 are connected pipelines for supplying and discharging gas, respectively.

In the suction mode, gas passes through the suction port 5 and through the inside of the valve passes into the working cavity of the cylinder. In the injection mode, gas from the cylinder passes through the inside of the valve and is discharged through the discharge opening 6 into the pipeline.

Industrial applicability

The claimed technical solution can be implemented using industrially produced devices and materials, can be manufactured at any engineering enterprise and will be widely used in compressor engineering.

Claims (8)

1. The valve body, containing the cavity of the suction and discharge, characterized in that it is made in the form of a parallelepiped, including two end and four side surfaces, a Central through longitudinal hole of cylindrical shape, a suction and discharge holes connecting the Central hole with the side surfaces, and the Central hole made in the form of four consecutive sections with increasing diameter: - the first section located at the end surface mating with the cylinder is made with the possibility of placing in it a cylinder liner; - the second section is made with the possibility of free placement of the suction part of the valve and the unhindered passage of gas through the valve; - the third section is arranged to center the inside of the combined valve; - the fourth section is configured to center the valve lantern and end cap; moreover, between the first and second sections on the inner surface of the housing there is an annular protrusion made concave from the side of the second section, the suction and discharge cavities are made in the form of grooves of the inner surface of the housing, while the suction cavity is located between the second and third sections, and the injection cavity is between the third and in the fourth sections, the suction and discharge openings are located on different side surfaces. 2. The housing according to claim 1, characterized in that on the end surface of the housing, mating with the cylinder, there is an annular rim made with an annular groove. 3. The housing according to claim 2, characterized in that on one of the side surfaces of the valve body there is a hole for supplying lubricant connected to the annular groove by an opening-channel made at an angle to the main axis of the body. 4. The housing according to claim 1, characterized in that blind threaded holes are made on the side surfaces of the housing around the suction and discharge openings. 5. The housing according to claim 1, characterized in that a recess is made coaxially on the side surfaces of the housing around the suction and discharge holes. 6. The housing according to claim 1, characterized in that on the end surface of the housing with the sides of the lid, around the central hole are blind threaded holes. 7. The housing according to claim 1, characterized in that through holes are made therein located along the faces of the housing. 8. The housing according to claim 1, characterized in that it is made in the form of a parallelepiped with cut ribs.

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