KR100895105B1 - Valve for reciprocating compressor - Google Patents

Valve for reciprocating compressor Download PDF

Info

Publication number
KR100895105B1
KR100895105B1 KR1020080092008A KR20082008009A KR100895105B1 KR 100895105 B1 KR100895105 B1 KR 100895105B1 KR 1020080092008 A KR1020080092008 A KR 1020080092008A KR 20082008009 A KR20082008009 A KR 20082008009A KR 100895105 B1 KR100895105 B1 KR 100895105B1
Authority
KR
South Korea
Prior art keywords
valve
flow path
valve plate
guide
reciprocating compressor
Prior art date
Application number
KR1020080092008A
Other languages
Korean (ko)
Inventor
배윤기
Original Assignee
(주) 지티씨
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by (주) 지티씨 filed Critical (주) 지티씨
Priority to KR1020080092008A priority Critical patent/KR100895105B1/en
Application granted granted Critical
Publication of KR100895105B1 publication Critical patent/KR100895105B1/en

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/10—Adaptations or arrangements of distribution members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
    • F04B39/10—Adaptations or arrangements of distribution members
    • F04B39/1066—Valve plates
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K15/00—Check valves
    • F16K15/14—Check valves with flexible valve members
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2250/00—Geometry
    • F05B2250/10—Geometry two-dimensional
    • F05B2250/19—Geometry two-dimensional machined; miscellaneous
    • F05B2250/192—Geometry two-dimensional machined; miscellaneous beveled
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2260/00—Function
    • F05B2260/50—Kinematic linkage, i.e. transmission of position
    • F05B2260/502—Kinematic linkage, i.e. transmission of position involving springs
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S251/00—Valves and valve actuation

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Compressor (AREA)
  • Check Valves (AREA)

Abstract

A valve for a reciprocation compressor is provided to increase the flow efficiency of the fluid and the working efficiency by securing a wide flow channel space whose structure is simple. A valve for a reciprocation compressor comprises a plurality of inlet holes(112), a valve base(110) having a joint rod(171). A valve plate(130) is located in a girth of a front inlet hole of the valve base in order to move up and down relative to the pressure of the fluid flowed through the inlet hole. A valve guard(120) has a joint groove(121) and connects to the front side of the valve base with a screw nut. A coil spring(180) is supported between the valve guard and the valve plate. Guide unit includes a plurality of firsts and second fluid path(122,125) and a plurality of support groove(126) having a through path.

Description

Valve for reciprocating compressor

The present invention relates to a check valve, and more particularly, to a valve for a reciprocating compressor which improves work efficiency, improves assembly and maintainability, and significantly improves service life and operating pressure.

In general, a compressor is a mechanical device that compresses a working gas to increase pressure by receiving power from a power generator such as an electric motor or a turbine and applying a compression work to air, a refrigerant, or other special gases. It is used.

On the other hand, the compressor can be classified into a volume type and a turbo type according to the compression method. Here, the volumetric compressor has a higher compression ratio than the turbo compressor and is used in a relatively small capacity range, and is classified into a reciprocating type, a rotary type, a membrane type compressor, and the like.

Among these, the reciprocating compressor is a device for increasing the pressure by increasing the pressure by reducing the volume by suctioning and compressing the gas while the piston inside the cylinder moves up and down, and is classified into one stage, two stages, etc. according to the number of cylinders. According to the arrangement of the type, it is classified into V type, horizontal type, upright type, and opposite type.

In addition, such a reciprocating compressor is divided into a base portion for receiving the power from the power generator to convert the linear motion of the piston to the rotary motion and a cylinder portion for compressing the gas received from the base portion to receive the power, The valve is provided with the suction and discharge.

In addition, the valve is mainly used a check valve, the check valve is designed to open the valve when the pressure is above a certain pressure to move the air or gas instantaneously, so that one check valve can be used in accordance with the direction of the fluid Is installed.

On the other hand, conventionally, such a check valve has a large number of parts using a leaf spring, but has a complicated flow path structure mainly to secure a wide flow path structure.

However, it is important for such a check valve to supply a large amount of gas, air or the like at one time for the speed of work and the compression efficiency, and it is advantageous to have a simple flow path structure with a relatively large area.

In addition, it is easy to assemble in a simple configuration, easy to maintain in case of failure, relatively long service life, and a wide range of operating pressure can significantly improve the product performance of the reciprocating compressor.

Therefore, there is a need for a valve for a reciprocating compressor which can improve work efficiency with a relatively wide and simple flow path structure, improve assembly and maintainability with a simple configuration, and have a relatively improved service life and use pressure.

The present invention provides a valve for a reciprocating compressor which improves work efficiency with a simple and wide flow path structure and improves assembly and maintainability with a simple configuration, and has a markedly improved service life and operating pressure. Let's solve the problem.

The present invention is a valve base which is formed with a plurality of inlet holes along the circumferential direction on the front in order to solve the above problems; A valve plate positioned at an edge of the front side inlet hole of the valve base to be selectively moved up and down in accordance with the pressure of the fluid flowing through the inlet hole; Is coupled to the front surface of the valve base, the guide portion for receiving the valve plate in the circumferential direction to correspond to the inlet hole is formed, a plurality of support grooves each having a through flow path is formed on the inner lower surface of the guide portion, A valve guard having a plurality of first flow paths and a second flow path formed inside and outside the guide part, respectively; And one side is inserted into the support groove is supported and the other side provides a valve for a reciprocating compressor comprising a coil spring for supporting the one side of the valve plate.

Here, the guide portion protrudes downward in the shape of a cross-sectional toothed wheel on the inside, the inner guide for forming the first flow passage penetrates intersecting with the inner circumferential guide rib extending along the outer circumference of the central cylindrical portion, and sawtooth shape on the outer rim Protruding downward, preferably comprises an outer guide for forming the second flow path which is opened downward in the circumferential direction. In addition, the through flow path is formed in the inner upper end of the support groove, it is preferable that the through flow path and the support groove is inclined downwardly. Furthermore, the upper opening surface of the inflow hole is preferably in contact with the lower surface of the valve plate placed on the edge of the inflow hole to have a one-to-one correspondence. In addition, one of the first passages may be provided in a radial direction so as to correspond to the inflow hole, and the cross-section may be inclined in an upward radial structure.

The present invention provides the following effects through the above solution.

First, the check valve of the present invention has a simple structure that communicates with the first flow path and the second flow path formed integrally with the inflow hole integrally formed from the central axis to the outside, thereby securing a wide flow path space, thereby improving fluid flow efficiency. The work efficiency can be significantly improved.

Second, since the check valve of the present invention is provided with a single number of valve plates in the space partitioned by the guide part, it is easier to design with a simple configuration than the check valve adopting a leaf spring requiring a large number of plates such as a leaf spring and a valve plate. It is assembled and easy to maintain in case of breakdown, which greatly improves the assembly and maintainability.

Thirdly, the check valve of the present invention is a valve plate having a relatively thick thickness, which is simply manufactured in a simple form and is adjustable with a coil spring, which extends the service life and extends the usable pressure, thereby improving durability and increasing the use range. Can be extended.

Fourth, the check valve of the present invention partitions the moving space of the valve plate and is a guide part in which the first flow path and the second flow path are integrally formed, and thus the remarkable effect of improving the space utilization and simplifying the manufacturing process improves productivity and economy. There is.

Hereinafter, a valve for a reciprocating compressor according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is a partial cross-sectional view schematically showing a reciprocating compressor in which a valve for a reciprocating compressor according to a preferred embodiment of the present invention is installed.

As shown in FIG. 1, the reciprocating compressor 10 according to the present invention receives a power from a driving source and converts a rotary motion into a vertical reciprocating motion, and receives the power of vertical reciprocating motion from the base part. It is divided into a cylinder part for compressing.

The base part is coupled to the crankshaft 11, the crankshaft 12 is supported by the crankcase 11, and receives power from a drive source by a gear or the like, and the crankshaft 12, the crankshaft 12 Connecting rod 13 for converting the rotational movement of the rod into a vertical reciprocating motion, a cross head 14 supporting the thrust from the connecting rod 13 and connected to the piston rod 21, and an upper end of the connecting rod 13. It includes a guide 15 for guiding the up and down reciprocating at a constant position. The bottom of the crank case 11 serves as an oil box.

In addition, the cylinder portion is connected to the cylinder body 33 coupled to the upper and lower cylinder heads 31 and 32, and a piston rod 21 connected to one end of the cross head 14 and extends through the lower cylinder head 32. And a piston 22 connected to the other end of the piston rod 21.

On the other hand, the upper and lower sides of the cylinder body 33 is provided with a plurality of intake valve (100a) and discharge valve (100b) for the intake and discharge of gas, the valve (100a, 100b) is a check valve.

Here, since the suction valve 100a and the discharge valve 100b are disposed in a predetermined direction according to the direction of the fluid to be moved, one check valve may be used for both suction and discharge by varying the direction.

In addition, the suction check valve 100a and the discharge check valve 100b are operated in conjunction with the vertical reciprocating motion of the piston 22. Accordingly, the gas is compressed while the piston 22 moves to the top dead center, and the discharge check valve 100b is opened to discharge the compressor body.

Then, when the piston 22 moves from the top dead center to the bottom dead center, the internal pressure decreases as the volume of the upper portion of the cylinder, that is, the upper side of the piston 32 increases, and the intake check valve 100a is opened to inhale the gas. In addition, the sucked gas is compressed and discharged while the piston 22 moves to the top dead center again.

Therefore, the cylinder portion continuously compresses and discharges the gas sucked by the repeated reciprocating motion of the piston 22 through the plurality of valves. In addition, the check valve 100 is preferably made of a metal material to have a rigidity that can be basically durable.

On the other hand, Figure 2 is an exploded perspective view of the valve for the reciprocating compressor according to the preferred embodiment of the present invention from the top, Figure 3 is an exploded perspective view of the valve for the reciprocating compressor according to the preferred embodiment of the present invention from the bottom.

2 and 3, the valve 100 for the reciprocating compressor according to the preferred embodiment of the present invention is a valve base 110, valve plate 130, valve guard 120 and coil spring 180 It is made, including.

First, since the check valve 100 according to the present invention is normally installed at an inlet or outlet of the cylinder of the reciprocating compressor 10 at an angle, the upper and lower concepts used in the present invention are used for convenience of description. And the check valve 100 of the present invention is not limited to these up and down positions.

In detail, the valve base 110 is preferably formed in a cylindrical shape, and may be installed as a suction check valve (100a of FIG. 1) or a check valve (100b of FIG. 1) of the above-described reciprocating compressor (10 of FIG. 1). It is preferable that the outer circumference has a stepped structure so as to have a shape that can be.

In addition, a plurality of inflow holes 112 are formed on the front surface of the valve base 110 in the circumferential direction. Preferably, the inflow holes 112 are formed in at least three places as shown in the figure, and the cross section is It consists of a structure that is accelerated upwardly downward.

In addition, the inflow hole 112 penetrates up and down inside the protruding portion 111 protruding in a circular border shape on the front surface of the valve base 110, and penetrates into a wide area that is formed singly in a radial direction of a plane. do. Of course, the check valve 100 according to the present invention may be configured without the protrusion 111.

Here, it is preferable that the inlet hole 112 is formed in at least three places in FIG. 2, which connects the inner central cylindrical portion 113a and the outer circumferential edge portion 113b of the valve base 110. This is because the 113 is formed at three locations is firmly fastened.

That is, the connecting portion 113 is formed integrally with the inner central cylindrical portion 113a and the outer peripheral edge portion 113b, wherein the inner central cylindrical portion 113a and the outer outer edge portion 113b are circular in shape. Formed to be spaced apart from each other by the inlet holes 112 of the te-shaped and the front center portion of the inner central cylindrical portion 113a is formed with a fastening bar 171 to be described later, The connecting portion 113 is formed in three places to prevent deformation. Of course, since the number of the inflow holes 112 is at least three or more along the circumferential direction, it may be formed in four, five or the like.

In addition, the inlet hole 112 is preferably formed in a single and wide range in the radial direction of the valve base 110, which is a planar area of the flow path than a structure having a plurality of flow paths in the radial direction in a conventional compressor. Since much increased, the rapid movement of the fluid can significantly improve the speed of the work required in the check valve (100).

Furthermore, a fastening rod 171 is formed at the center portion of the front side of the valve base 110, and the fastening rod 171 passes through a plate hole 131 of the valve plate 130 to be described later. Penetrating through the fastening hole 121 of the 120 is fastened by a fastening member such as a nut 173, pin (172 of FIG. 4), a screw groove corresponding to the nut 173 may be formed on the top.

On the other hand, the valve plate 130 is placed on the edge of the inlet hole 112 on the front side of the valve base 110, the valve plate 130 is the pressure of the fluid flowing through the inlet hole 112 Optionally provided to be movable up and down.

In addition, the valve plate 130 is preferably made of a circular frame plate, so that the valve plate 130 to be easily guided on the front surface of the valve base 110 to correspond to the valve plate 130 The protrusion 111 is formed. Of course, it is also possible to be placed on the edge of the inlet hole 112 without the configuration of the protrusion 111. In addition, the circular plate hole 131 inside the valve plate 130 is a space through which the fastening rod 171 passes as described above.

Here, the valve plate 130 is installed so that the coil spring 180 to be described later to press the upper surface of the valve plate 130, through the inlet hole 112 is applied to the lower surface of the valve plate 130. When the pressure of the fluid to be introduced is a pressure that overcomes the elastic force of the coil spring 180, the valve plate 130 may be moved upward in the drawing to form a flow path for the fluid to move.

In addition, the material of the valve plate 130 is preferably used, such as metal, plastic and have a rigidity, for example, it may be made of a metal material having a rigidity capable of withstanding a pressure of up to 30kg / cm 2 . .

Here, the valve plate 130 is made of a plate member of the annular frame is easy to manufacture in a simple shape can be easily replaced during maintenance and can improve the compatibility and serviceability of the parts by easy maintenance.

In addition, the valve plate 130 may be formed to have a smaller thickness than the downward protrusion length in the drawings of the guide parts 124a and 124b described later. Through this, a sufficient flow path space is formed by the upward movement of the valve plate 130 in the drawing, so that the flow efficiency of the fluid is improved, and thus the working efficiency of the compressor can be significantly improved.

On the other hand, the valve guard 120 is disposed on the upper side of the valve plate 130, the valve guard 120 is preferably made of a cylindrical shape of a metallic material, the outer circumference is formed stepped, the valve guard 120 ) Is formed in the circumferential direction guide portion (124a, 124b) is accommodated in the circumferential direction to correspond to the inlet hole 112, a plurality of first inside the guide portion (124a, 124b) A flow path 122 is formed, and a plurality of second flow paths 125 are formed outside the guide parts 124a and 124b.

That is, the lower surface of the valve guard 120 is provided with a guide portion (124a, 124b) protruding to guide the movement of the valve plate 130, the guide portion (124a, 124b) is the valve plate 130 ) Partitions the distance to move up and down in the drawing, it is to determine the height of the passage in which the fluid flowing into the inlet hole 112 is moved.

Here, the guide parts 124a and 124b have a lower surface of the valve guide 120 connecting the inner guide 124b and the outer guide 124a and the inner guide 124b and the outer guide 124a to be described later. It is a concept to include.

Accordingly, the check valve 100 of the present invention partitions the movement space of the valve plate 130 and the guide part 124a in which the first flow path 122 and the second flow path 125 are integrally formed. 124b) improves space utilization and simplifies the manufacturing process, resulting in increased productivity and economics.

In addition, the plurality of first flow paths 122 and the second flow paths 125 formed at the inner side and the outer side of the guide parts 124a and 124b respectively correspond to the positions formed along the circumferential direction of the inflow hole 112. It is preferably formed so as to. That is, the first passage 122 and the second passage 125 are formed in the same radial direction as the inflow hole 112.

Through this, the first passage 122 and the second passage 125 are in contact with the inner and outer directions of the inlet hole 112 when the valve plate 130 is moved upward to open the inlet hole. Fluid flowing through the 112 may be quickly moved through the first passage 122 and the second passage 125.

Here, the guide parts 124a and 124b preferably include an inner guide 124b that forms the first flow path 122 and an outer guide 124a that forms the second flow path 125. The inner guide 124b and the outer guide 124a have the same protruding length and a part of the lower surface is in close contact with the front surface of the valve base 110.

That is, each of the plurality of first flow paths 122 and the second flow paths 125 respectively have a wide space at a position corresponding to each of the plurality of inflow holes 112 in the radial direction of the valve guard 120, respectively. It is formed on the inside and the outside as a single, through this, the check valve 100 according to the present invention can ensure the flow path direction and a wide flow path space in all directions on the plane while the valve plate 130 is opened.

Through this, the check valve 100 of the present invention is a simple structure in which the inlet hole 112 is in communication with the first passage 122, the second passage 125, respectively, to ensure a relatively large space to quickly The moveability can significantly improve work efficiency.

Here, a fastening hole 121 is formed in an approximately center portion of the valve guard 120. The fastening hole 121 is a space through which the fastening rod 171 passes, as described above. Tighten the nut 173 to the fastening rod 171 that passes through the fastening hole 121 to the upper side of the valve base 110 and the valve guard 120 by inserting a pin (172 of FIG. 4). Is more firmly coupled can be improved fastening.

That is, the check valve 100 of the present invention is the valve guard 120 is coupled to the upper side of the valve base 110, the valve plate (110) and the valve plate (120) between the valve guard (120) 130) is accommodated.

In addition, the lower surface of the valve guard 120 is formed with a plurality of support grooves 126 in the interior of the guide portion 124a, 124b having a through flow path 126a therein.

Here, a plurality of support grooves 126 are formed between the outer guide 124a and the inner guide 124b in the circumferential direction, preferably at least three places at equal intervals along the circumferential direction. It may be formed, as shown in Figure 4, may be formed in six places.

In addition, a through flow passage 126a penetrating the upper side of the valve guard 120 is formed at an inner upper end of the support groove 126. The through flow passage 126a opens the valve plate while the inflow hole 112 is opened. ) Is a passage for the fluid to communicate with. Here, the inner diameter of the through passage 126a is preferably smaller than the inner diameter of the support groove 126.

On the other hand, the guide portion and the inner guide which protrudes downward in the shape of a cross-sectional cogwheel on the inside, and forms the first flow passage that crosses with the inner circumferential guide rib 123 extending along the outer circumference of the central cylindrical portion (123a) and Protruding downward in the sawtooth shape on the outer circumferential edge, it is preferable to include an outer guide for forming the second passage opening downward in the circumferential direction. As a result, a plurality of the first flow paths and the second flow paths may be simply formed as the guide parts, respectively.

That is, the first flow paths 122 are formed integrally with each other, but are separated from each other by the outer circumferential edge portion 123b and the central cylindrical portion 123a, which are fixed to the inner circumferential guide rib 123. It is preferable that the inner guide 124b for forming a) and the outer guide 124a for forming the second flow path 125 to the open space formed in the sawtooth structure.

Here, the inner circumferential guide rib 123, the outer circumferential edge portion 123b, and the central cylindrical portion 123a are integrally formed with the valve guard 120, and the central cylindrical portion 123a and the inner circumferential guide rib 123 are integrally formed. Protruded into the inner guide (124b). In addition, the rib structure protruding along the outer circumference of the valve guard 120 is the outer guide 124a.

In addition, the positions of the plurality of first passages 122 and the second passage 125 are formed on the same radius of the valve guard 120 so as to correspond to the positions of the plurality of inlet holes 112, respectively. Furthermore, the first passage 122 refers to a hole structure formed inside the valve guard 120, and the second passage 125 has a space in which the outer circumference of the valve guard 120 is opened in a stepped shape. Say In addition, the valve base 110 or the valve guard 120 are formed integrally with each other to facilitate manufacturing.

Accordingly, the guide parts 124a and 124b have a function of supporting the valve plate 130 and a space for forming the first flow path 122 and the second flow path 125. Since the valve guard 120 is formed while manufacturing integrally, a simple structure can be easily manufactured to improve productivity and economy.

On the other hand, the coil spring 180 is inserted into the support groove 126 of the valve guard 120, the coil spring 180 supports the valve plate 130 in a lower side. That is, the coil spring 180 is supported by one side is inserted into the support groove 126 and the other side is shot in support of the upper surface of the valve plate 130 to the lower side, there is no flow of fluid in the normal valve plate ( 130 is moved downward to maintain a closed flow path contacting the edge of the inflow hole (112).

In addition, the fluid flowing into the lower side of the inflow hole 112 is upward while pushing the valve plate 130 supported by the coil spring 180 upward when a constant pressure overcomes the elastic force of the coil spring 180. It can be moved. Here, the coil spring 180 refers to a spring made in the form of a coil and is mainly made of a material such as metal.

Moreover, it is easy to make the thickness of the valve plate 130 relatively thick with the configuration of the coil spring 180. On the contrary, the check valve having a leaf spring functioning as the coil spring 180 requires at least two annular frame members of the leaf spring and the valve plate in the guide portions 124a and 124b. Silver space utilization is not easy to thicken the valve plate.

That is, the life of the check valve 100 is determined by the valve plate 130. When the valve plate 130 becomes relatively thick using the coil spring 180, the valve plate 130 can withstand relatively high pressure and has a long service life. Longer

For example, when the thickness of the valve plate 130 is doubled, the service life is extended by about 2 times and the working pressure is about 4 times. Here, the coil spring 180 may adjust one or more of its number and head diameter so that the valve plate 130 is elastically supported according to the thickness.

In this way, the check valve 100 of the present invention is easy to assemble and maintain with a simple configuration of the coil spring 180 and the valve plate 130 as compared to the check valve of the leaf spring structure having a relatively large number of parts And economics can be significantly improved.

In addition, the check valve 100 of the present invention is improved in the service life and use pressure of the valve plate 130 of a relatively thick metal material can be significantly improved durability and operating performance.

Furthermore, by adjusting at least one of the number and the number of heads of the coil springs 180, the elastic force of the coil springs 180 and the thickness of the valve plate 130 are simultaneously adjusted so that the valve plate 130 is elastically supported. It is easy to do

On the other hand, the first flow passage is provided with one extending in the radial direction to correspond to the inlet hole, it is preferable that the cross section is formed to be inclined in an upward radial structure. That is, the first flow path is formed between the support groove 126 and the inner guide 124b in the configuration of a single wide area hole. Accordingly, the first flow path may have a wide flow path area with a simple structure.

Hereinafter, the flow path in the case of opening or closing the valve 100 for the reciprocating compressor according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

On the other hand, Figure 4 is a cross-sectional view showing a closed state valve for the reciprocating compressor in accordance with a preferred embodiment of the present invention, Figure 5 shows a flow path in the open state valve for the reciprocating compressor in accordance with a preferred embodiment of the present invention It is a cross section.

As shown in FIG. 4, when the check valve 100 for the reciprocating compressor according to the present invention is closed, when the compressor is not normally operated and the inflow of fluid is completed, the pressure of gas such as gas or air is lowered. It may be divided into cases where it is not formed.

In addition, in all cases described above, since there is no fluid flowing through the inflow hole 112, only the downward elastic force acts on the valve plate 130 in the drawing of the coil spring 180. Therefore, the valve plate 130 is moved downward by the elastic force of the coil spring 180 to maintain a close contact with the upper surface of the valve base 110.

When the valve according to the present invention is used as a suction valve, the through flow path 126a provided at the upper end of the support groove 126 formed on the same radius as the guide parts 124a and 124b is shown. The pressure of the gas located on the upper side may help pressurize the valve plate 130 downward.

That is, the pressure of the gas formed in the upper compression space to pressurize the valve plate 130 through the through flow path 126a formed in the support groove 126, thereby reducing the pressure of the valve plate 130. Pressing performance can be improved. That is, the configuration of the through flow path 126a may widen the usable range of the coil spring 180 such as the material and the number of the coil springs 180.

On the other hand, the upper opening surface of the inlet hole is preferably in contact with the lower surface of the valve plate placed on the edge of the inlet hole to have a one-to-one correspondence. That is, referring to Figure 4, the inlet hole is composed of a single hole communicated up and down, and is formed to correspond almost to be slightly smaller than the lower surface of the valve plate. Therefore, the inflow hole may have a simple and wide flow path area in the vertical direction.

On the other hand, as shown in Figure 5, when the check valve 100 for the reciprocating compressor according to the present invention is opened, the high pressure gas to overcome the elastic force of the coil spring 180 is supplied from the lower side in the drawing is the inlet hole In case of entering through 112, the flow path in this case is well represented in the direction of the arrow shown.

Here, the flow path formed in the valve guard 120 in communication with the inlet hole 112 formed in the valve base 110 is the first flow path 122, the second flow path 125 and the through flow path ( 126a). That is, when the valve plate 130 is opened, the first passage 122, the second passage 125, and the inner upper end portion of the support groove 126 penetrate through the inside of the valve guard 120. The fluid is moved through the through passage 126a.

In addition, when the valve plate 130 is completely opened, that is, when the valve plate 130 is in contact with the valve guard 120, the first passage 122 and the second passage 125 are formed in the inflow hole. And fluid, in particular in this case, through a gap formed between the guide plate and the valve plate 130 having a function of a free space in which the valve plate 130 moves. have.

On the other hand, the through flow path 126a is formed on the inner upper end of the support groove 126, it is preferable that the through flow path 126a and the support groove 126 is inclined downward. Here, the through passage 126a penetrates upward from the upper end of the support groove 126 to the valve guard 120, and is formed in the plurality of support grooves 126, respectively, and has a cylindrical shape. In addition, the connection structure between the through passage 126a and the support groove 126 has a cylindrical shape having a trapezoidal cross section.

Through this, the structure connected to the through flow path from the support groove 126 is a structure in which the fluid is accelerated, the pinch of the coil spring 180 to be described later on the inner upper portion of the support groove 126 can be prevented. .

On the other hand, as shown in the cross section, the interval length of the guide, the diameter length of the support groove 126 and the diameter length of the through flow path 126a is preferably formed to be sequentially smaller.

That is, the length between the guide consisting of the outer guide 124a and the inner guide 124b, the diameter length of the support groove 126, and the diameter length of the through flow path 126a in the cross section are sequentially It is preferable to form small.

Through this, the coil spring 180 interpolated in the support groove 126 may be moved without interfering with the guide, and the speed of the flow path moved through the through flow path 126a may be accelerated.

As described above, the valve 100 for the reciprocating compressor according to the preferred embodiment of the present invention is not limited to the above-described embodiment, and is generally used in the art to which the present invention pertains without departing from the scope of the present invention. Modifications may be made by those skilled in the art, and such modifications are within the scope of the present invention.

1 is a partial cross-sectional view schematically showing a reciprocating compressor is installed valve for a reciprocating compressor according to a preferred embodiment of the present invention.

Figure 2 is an exploded perspective view of the valve for a reciprocating compressor according to a preferred embodiment of the present invention as viewed from above.

3 is an exploded perspective view of a valve for a reciprocating compressor according to a preferred embodiment of the present invention as viewed from below.

4 is a cross-sectional view showing a case in which the valve for the reciprocating compressor according to the preferred embodiment of the present invention is closed.

5 is a cross-sectional view showing a flow path when the valve for the reciprocating compressor according to the preferred embodiment of the present invention is opened.

<Description of Symbols for Main Parts of the Present Invention>

110: valve base 112: inlet hole

120: valve guard 122: the first euro

124a: inner guide 124b: outer guide

125: second euro 126: support groove

126a: through-flow path 130: valve plate

180: coil spring

Claims (5)

A valve base having a plurality of inflow holes formed in a circumferential direction on a front surface thereof, the fastening rod being provided at a central portion thereof; A valve plate positioned at an edge of the front side inlet hole of the valve base to be selectively moved up and down in accordance with the pressure of the fluid flowing through the inlet hole; The fastening rod having a screw groove formed therein is inserted into the fastening hole of the center portion, and the nut is formed integrally with an extension having a groove at the upper end thereof. Is coupled to the front of the valve base by a fixing pin for fixing the nut, A guide part is formed to accommodate the valve plate in a circumferential direction to correspond to the inflow hole, and a plurality of support grooves having through flow paths are formed on the inner bottom surface of the guide part, respectively, A valve guard formed with a first flow path and a second flow path; And One side is inserted into the support groove is supported and the other side is a valve for a reciprocating compressor comprising a coil spring for supporting the one side of the valve plate in a shot. The method of claim 1, The guide part An inner guide which protrudes downward in a cross-sectional toothed shape on the inner side and forms the first flow passage that crosses the inner circumferential guide rib extending along the outer circumference of the central cylindrical portion; A valve for a reciprocating compressor, comprising an outer guide projecting downward in a sawtooth shape on an outer circumference and forming the second flow path opening downward in a circumferential direction. The method of claim 1, The through flow path is formed in the inner upper end of the support groove, the through flow path and the support groove is a valve for a reciprocating compressor, characterized in that inclined downwardly connected. The method of claim 1, The upper opening surface of the inlet hole is in contact with the bottom surface of the valve plate placed on the rim of the inlet hole reciprocating compressor, characterized in that the one to correspond. The method of claim 1, The first flow passage is provided with one extending in the radial direction of the ball guard so as to correspond to the inlet hole, the cross-section is a valve for a reciprocating compressor, characterized in that formed inclined in an upward radial structure.
KR1020080092008A 2008-09-19 2008-09-19 Valve for reciprocating compressor KR100895105B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020080092008A KR100895105B1 (en) 2008-09-19 2008-09-19 Valve for reciprocating compressor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020080092008A KR100895105B1 (en) 2008-09-19 2008-09-19 Valve for reciprocating compressor

Publications (1)

Publication Number Publication Date
KR100895105B1 true KR100895105B1 (en) 2009-04-28

Family

ID=40758201

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020080092008A KR100895105B1 (en) 2008-09-19 2008-09-19 Valve for reciprocating compressor

Country Status (1)

Country Link
KR (1) KR100895105B1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103807147A (en) * 2014-02-28 2014-05-21 成都大漠石油机械有限公司 Air valve with air outflow pressure convenient to adjust
CN103807146A (en) * 2014-02-28 2014-05-21 成都大漠石油机械有限公司 Reciprocating compressor air valve of which air outlet pressure can be conveniently adjusted
KR20200062645A (en) 2018-11-27 2020-06-04 (주) 지티씨 valve assembly for compressor
KR20220153398A (en) * 2021-05-11 2022-11-18 한국동서발전(주) Damping check valve for air compressor
KR102548525B1 (en) 2023-05-26 2023-06-28 한국동서발전(주) Check valve for air compressor

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53123605U (en) * 1977-03-11 1978-10-02
JPS6338683U (en) * 1986-08-30 1988-03-12
JPH07238886A (en) * 1992-06-02 1995-09-12 Mas Fab Sulzer Burckhardt Ag Annular valve for piston type compressor
KR100821670B1 (en) 2008-01-22 2008-04-14 이승학 Attrition prevention systems of valve plate and valve guard for air compressor

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53123605U (en) * 1977-03-11 1978-10-02
JPS6338683U (en) * 1986-08-30 1988-03-12
JPH07238886A (en) * 1992-06-02 1995-09-12 Mas Fab Sulzer Burckhardt Ag Annular valve for piston type compressor
KR100821670B1 (en) 2008-01-22 2008-04-14 이승학 Attrition prevention systems of valve plate and valve guard for air compressor

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103807147A (en) * 2014-02-28 2014-05-21 成都大漠石油机械有限公司 Air valve with air outflow pressure convenient to adjust
CN103807146A (en) * 2014-02-28 2014-05-21 成都大漠石油机械有限公司 Reciprocating compressor air valve of which air outlet pressure can be conveniently adjusted
CN103807147B (en) * 2014-02-28 2016-01-13 成都大漠石油机械有限公司 Be convenient to the air valve adjusting atmospheric pressure
KR20200062645A (en) 2018-11-27 2020-06-04 (주) 지티씨 valve assembly for compressor
KR20220153398A (en) * 2021-05-11 2022-11-18 한국동서발전(주) Damping check valve for air compressor
KR102538452B1 (en) * 2021-05-11 2023-05-31 한국동서발전(주) Damping check valve for air compressor
KR102548525B1 (en) 2023-05-26 2023-06-28 한국동서발전(주) Check valve for air compressor

Similar Documents

Publication Publication Date Title
KR100774485B1 (en) Compressor
KR100895105B1 (en) Valve for reciprocating compressor
CN1221857A (en) Discharge valve system for linear compressor
KR101951651B1 (en) Compact Air Compressor
US11067070B2 (en) Cylinder assemble structure for compact air compressor
US4721443A (en) Discharge valve retainer for a compressor
CN112648165B (en) Double-cylinder compressor
CN1815032A (en) Dual-piston valve for orbiting vane compressors
KR20030088533A (en) Dual cylinder apparatus for Hermetic compressor
KR101559807B1 (en) Concentric valve assembly for air compressor
KR20020023517A (en) Valve assembly of hermetic compressor
KR100579371B1 (en) Discharge valve assembly for linear compressor
CN111386417B (en) Valve device, pump head, and pump device
US12018666B2 (en) Discharge valve arrangement for a refrigerant compressor
US20220397109A1 (en) Discharge valve arrangement for a refrigerant compressor
CN216788666U (en) A valve plate subassembly for oil-free air compressor machine field
US9435322B2 (en) Valveless reciprocating compressor
KR102121123B1 (en) Compact Air Compressor with Novel Piston Structure
CN101205898B (en) Roof cover of enclosed compressor and valve assembly using the same
KR100340840B1 (en) Head cover for hermetic compressor
KR20080012714A (en) Bolting structure for a discharge cover used in a linear compressor
KR200373793Y1 (en) Fluid a compressor with electromagnet
KR100504905B1 (en) Discharge apparatus of reciprocating compressor
KR20050043489A (en) Suction valve fixing apparatus for reciprocating compressor
CN115596641A (en) Compressor and refrigeration plant