KR102097474B1 - A Multistage Type Orifice For Pressure Drop - Google Patents

Abstract

The present invention relates to a multi-stage orifice for pressure drop that can be installed in a limited space and can adjust the pressure drop efficiency as needed, in a cylindrical shape in a tubular orifice housing, a flow path groove is formed on one surface, and the flow path is formed on the other surface. Inserting an orifice array formed by stacking a plurality of orifice layers communicating with a groove and having an orifice hole having a diameter smaller than that of the flow path groove in the orifice seating chamber, the orifice holes of the orifice layers disposed adjacent to each other are different from each other. It is characterized in that it is arranged to be formed at a position to maximize the pressure drop effect of the fluid flowing therethrough.

Description

Multi-stage orifice for pressure drop {A Multistage Type Orifice For Pressure Drop}

The present invention relates to a multi-stage orifice for pressure drop, and more particularly, to a multi-stage orifice for pressure drop, which can effectively lower the pressure of a high pressure fluid supplied from a high pressure tank in an environment where space is limited.

In general, the orifice is formed in a circular shape, and is used for adjusting and measuring the flow rate.

In detail, if an orifice with a diameter of d is inserted in the middle of a oil pipe with a diameter of D, Bernoulli's theorem changes the flow rate immediately thereafter to drop the pressure, and detects the pressure difference between the fluid before and after the orifice to detect the flow rate or flow rate. It is used for seeking purposes.

On the other hand, the projectile has to minimize the volume in order to lower the structure cost, and even though various pneumatic sources are required, the pressurized gas is divided into several working pressures and distributed through one pneumatic source (high pressure tank) corresponding to the maximum pressure. . The pressurized gas thus distributed is appropriately supplied to a component requiring a low pressure and low flow rate, and a purge gas requiring a relatively low pressure, and driving of a pneumatic valve requiring a high pressure.

In summary, there is a need to drop the pressure of the high pressure gas from a high pressure tank filled with maximum pressure to a high or low pressure, depending on the operating pressure and flow rate of the component.

For the pressure drop of the high-pressure gas, it is possible to drop the pressure by installing a plurality of orifices between the high-pressure tank and each component, but in the case of a projectile, it is important to minimize the volume of the projectile, as mentioned above, so simply There is a problem in that the volume of the projectile increases when a plurality of lines are connected in a straight line.

Conversely, when limiting the volume of the projectile, there has been a problem that a range in which a high-pressure fluid supplied from a high-pressure tank can be dropped is limited.

Therefore, it is urgent to develop an orifice for pressure drop that can be installed in a narrow space while having a high pressure drop effect.

1. Korean Registered Patent Publication No. 10-1189706 ("Orifice Steam Trap") 2. Korean Patent Publication No. 10-2014-0055560 ("Rotary Perforated Orifice") 3. Korean Registered Patent Publication No. 10-1002670 ("Hydraulic Steering Device with Orifice-Formed Piston") 4. Public Utility Model Publication No. 20-1996-0013942 ("Orifice for cushion of hydraulic cylinder") 5. Registration Utility Model Publication No. 20-0139991 ("Orifice Tube")

The present invention has been devised to solve the above problems, and an object of the present invention is to provide a multi-stage orifice for pressure drop that can be installed in a limited space while adjusting the pressure drop efficiency as necessary.

On the other hand, the object of the present invention is not limited to the object mentioned above, other objects not mentioned will be clearly understood from the following description.

The multi-stage orifice for pressure drop according to the present invention is in the form of a tube, an orifice seating chamber is formed in a central portion, an inlet through which high-pressure fluid flows is formed on one side, and an outlet through which fluid passing through the orifice seating chamber flows out on the other side. Orifice housing is formed; And a cylindrical shape, an orifice array having one orifice hole formed on one surface, communicating with the orifice hole on the other surface, and a plurality of orifice layers having flow path grooves having a larger diameter than the orifice hole stacked in the orifice seating chamber; Including, but each orifice layer constituting the orifice array is arranged so that the flow path groove formed in each and the inlet and the outlet communicate with each other, the orifice hole of the orifice layer disposed adjacent to each other is arranged to be formed in different positions In the orifice seating chamber, a plurality of restraining grooves extending from one end to the other end of the orifice seating chamber are formed on an inner surface, and the orifice layer has a restraining protrusion formed on an outer surface, so that the restraining protrusion is the By being fitted into any of the restraining grooves, the image The position of the orifice hole with respect to the orifice seating chamber is constrained, and the orifice layer has a plurality of fixing grooves formed to be spaced apart from each other at a predetermined angle so as to form a radial shape on either side of the orifice. Fixing protrusions are formed on a surface to correspond to at least one of the fixing grooves, and the orifice array is disposed adjacent to one side of the first orifice layer and the first orifice layer, which are any one of the orifice layers. In the 2 orifice layer, disposed between the first orifice layer and the second orifice layer, further comprising an annular auxiliary seal having the same inner diameter and outer diameter as the orifice layer, wherein the auxiliary seal comprises the first orifice layer Among the positions corresponding to the fixing grooves formed in the image of the second orifice layer A portion corresponding to a group fixing protrusion is cut out, and an auxiliary protrusion is formed to be inserted into a fixing groove of the first orifice layer on one side of the first orifice layer of the remaining portion, and the fixing protrusion formed on the second orifice layer , Passing through the cut-out portion of the auxiliary seal and inserted into any one of the fixing grooves formed in the first orifice layer, and the auxiliary protrusions formed in the auxiliary seal inserted into the remaining fixing grooves formed in the first orifice layer It is characterized in that the position between the orifice hole formed in each of the first orifice layer and the second orifice layer is fixed.

At this time, the orifice hole is characterized in that it is formed to be deflected to one side with respect to the center point of the orifice layer.

More precisely, the orifice array is such that the orifice holes formed in each orifice layer adjacent to each other are deflected in different directions based on a virtual center line connecting the center points of the orifice layers adjacent to each other. It is arranged, it is characterized in that to more effectively drop the pressure of the fluid passing through the orifice housing.

Preferably, in the first orifice layer on which the first orifice hole is formed and the second orifice disposed adjacent to the first orifice layer and on which the second orifice hole is formed, the center point of the first orifice layer and the first orifice hole Is arranged such that the angle formed by the first virtual line formed by connecting each other, the center point of the second orifice layer, and the second virtual line formed by connecting the second orifice hole to each other is at least 90 ° or more and 180 ° or less. It is characterized by.

In addition, the multi-stage orifice for pressure drop, in the form of a tube, is fitted to the outlet side to support the member to prevent the orifice array from separating from the orifice housing; further comprising a.

At this time, the inner diameter of the outlet, the orifice is formed to be equal to or larger than the inner diameter of the seating chamber, the support member is detachably coupled to the outlet, each orifice layer constituting the orifice array is through the outlet It is characterized in that it is formed by being inserted into the orifice seating chamber.

In addition, the orifice seating chamber is formed with a plurality of restraining grooves extending from one end to the other end of the orifice seating chamber, and the orifice layer has a restraining protrusion formed on the outside, so that the restraining protrusion is restrained. By fitting into any one of the grooves, the position of the orifice hole with respect to the orifice seating chamber is constrained.

Preferably, the restraining grooves, in the first restraining groove and the second restraining grooves formed adjacent to each other, a first virtual restraining line connecting the center point of the orifice seating chamber and the first restraining groove, and the orifice seating chamber It is characterized in that the angle formed by the second virtual restraining line connecting the center point of the second restraining groove is at least 90 ° and less than 180 °.

Or, the orifice layer, a plurality of fixed grooves are formed spaced apart from each other at a predetermined angle to form a radial on one surface, the other side of the fixed groove is formed to correspond to at least one of the fixed grooves are formed, the A first orifice layer, which is one of the orifice layers constituting an orifice array, and a second orifice layer disposed adjacent to one side of the first orifice layer, in any one of the plurality of fixing grooves formed in the first orifice layer. The fixing protrusions formed on the second orifice layer are seated, and the positions of the orifice holes formed on each of the first orifice layer and the second orifice layer are fixed.

At this time, the fixing groove is characterized in that the angular spacing between each fixing groove formed adjacent to each other is at least 90 ° or more, 180 ° or less.

In addition, the support member, a thread is formed on the outer surface, the outlet, a female thread is formed on the inside, by screwing the support member to the outlet, the support member can be in close contact with the orifice seating chamber side It is characterized by being.

In addition, the support member is characterized in that a wrench groove for coupling a torque wrench is formed inside the opposite side where the orifice seating chamber is provided, and the support member can be detached from the outlet through the torque wrench.

In addition, the support member, the orifice seating chamber, the inner diameter of the contraction portion is formed in a contracted form is further formed, to lower the pressure of the fluid introduced when the fluid passing through the orifice seating chamber flows into the outlet side It is characterized by.

In addition, the contraction portion is provided with an annular seal insertion groove on a side contacting the orifice layer, and an annular seal is inserted into the seal insertion groove, so that fluid flowing from the orifice seating chamber does not flow out of the support member. It is characterized by.

In addition, the inlet, characterized in that at least the connecting portion with the orifice seating chamber is formed smaller than the inner diameter of the orifice seating chamber, so that the orifice array inserted in the orifice seating chamber does not deviate from the orifice seating chamber. .

The multi-stage orifice for pressure drop of the present invention according to the above configuration has an effect that can be used by adjusting the pressure of the fluid supplied by adjusting the number of orifice layers constituting the orifice array as necessary.

In addition, the orifice holes of each orifice layer constituting the orifice array are formed at different positions, so that the pressure drop effect of the fluid passing through the orifice array is more remarkable.

In particular, the orifice holes of each orifice layer disposed adjacent to each other are formed at a separation angle of at least 90 ° or more and 180 ° or less, so that the flow direction of the fluid fluctuates each time the fluid passes through each orifice layer. The effect can be maximized.

In addition, it is possible to easily and accurately fix the positions of each orifice layer and the orifice hole with respect to the orifice seating chamber through the restraining grooves formed in the orifice seating chamber and the restraining protrusions formed in the orifice layer.

Alternatively, there is an effect of fixing the positions of the orifice holes between each other with respect to each orifice layer constituting the orifice array through the fixing groove and the fixing protrusion formed in the orifice layer.

In addition, the support member and the outlet are formed so as to be screwed, there is an effect that the support member as close as possible to the seating chamber side to stabilize the flow of the fluid.

In addition, there is an effect that the support member can be easily detached using a general torque wrench through a wrench groove provided in the support member.

1 is a side cross-sectional view of a multi-stage orifice for pressure drop according to a preferred embodiment of the present invention.
Figure 2 is a cross-sectional side view showing the coupling relationship between the orifice housing and the support member of the multi-stage orifice for pressure drop according to a preferred embodiment of the present invention.
3 is a front view of an orifice layer that is a component included in a multi-stage orifice for pressure drop according to a preferred embodiment of the present invention.
4 is a perspective view illustrating an arrangement structure of an orifice array which is a configuration included in a multi-stage orifice for pressure drop according to a preferred embodiment of the present invention.
5 is a cross-sectional view taken along AA 'of FIG. 1 for showing a coupling relationship between an orifice layer and an orifice layer of a multi-stage orifice for pressure drop according to a preferred embodiment of the present invention.
6 is an exploded perspective view showing a coupling relationship of orifice layers constituting an orifice array according to another preferred embodiment of the present invention.

Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.

1 is a side cross-sectional view of a multi-stage orifice for pressure drop according to a preferred embodiment of the present invention.

As shown in FIG. 1, the multi-stage orifice 10 for pressure drop according to a preferred embodiment of the present invention is largely configured to include an orifice housing 100, an orifice array 300, and a support member 500. do.

The orifice housing 100 is installed between a conduit through which a fluid such as high-pressure fuel or oxidant is supplied and a conduit through which the fluid is to be supplied, and connects each other, and simultaneously creates a space in which the orifice array 300 is installed. It is a configuration to provide.

The orifice housing 100 is formed in a tubular shape, an orifice seating chamber 110 is formed in a central portion, an inlet 130 through which high-pressure fluid flows is formed at one side, and the orifice seating chamber 110 is formed at the other side. The outlet 150 through which the fluid passing through is formed.

Here, the orifice seating chamber 110 is inserted into the orifice array 300, in order to prevent the orifice array 300 accommodated in the orifice seating chamber 110 from leaving the orifice seating chamber 110, the inlet 130 It is preferable that at least the connection portion with the orifice seating chamber 110 is smaller than the inner diameter of the orifice seating chamber. For reference, FIG. 1 shows that the entire inner diameter of the inlet 130 is formed smaller than the inner diameter of the orifice seating chamber 110.

In addition, the inner diameter of the outlet 150 is formed equal to or larger than the inner diameter of the orifice seating chamber 110, so that the orifice array 300 is seated inside the orifice seating chamber through the outlet 150.

The support member 500 is configured to support the orifice array 300 by being inserted into the outlet 150 in order to prevent the orifice array 300 from escaping toward the outlet 150 due to fluid pressure.

In detail, the support member 500 is fitted into the inside of the outlet, in the form of a tube, FIG. 2, the side in which the coupling relationship between the orifice housing and the support member of the multi-stage orifice for pressure drop according to a preferred embodiment of the present invention is inverted. As shown in the cross-sectional view, a female screw 151 is formed in the outlet 150, a thread 550 is formed on the outer surface of the support member 500, and the tip of the support member 500 is connected to the outlet 150. As it rotates in the inserted state, the front end of the support member 500 may be in close contact with the orifice seating chamber 110 by proceeding toward the orifice seating chamber 110.

At this time, the support member 500 is formed with a wrench groove 530 capable of engaging a torque wrench inside the side opposite to the side on which the orifice seating chamber 110 is provided.

In detail, the wrench groove 530 is a form in which the inner diameter of the side exposed to the outside is expanded based on the state in which the support member 500 is coupled to the outlet 150, and the normal torque wrench is inserted into the inner diameter shape. It is formed in a shape corresponding to the torque wrench, for example, a hexagonal column or a pentagonal column.

In addition, the support member 500 is based on the state in which the support member 500 is coupled to the outlet 150, the inner diameter of the orifice seating chamber 110 side is a contraction portion 510 formed in a contracted form in a predetermined section further Formed, the contraction passage 511 formed by the contraction portion 510 exerts the same effect as one orifice when the fluid passing through the orifice seating chamber 110 flows into the outlet 150, thereby Reduce the pressure further.

On the other hand, when the support member 500 is completely in close contact with the orifice seating chamber 110, an annular seal insertion groove 513 is further provided on a side of the orifice seating chamber 110 and in contact with the orifice array 300, An annular seal 515 is inserted into the seal insertion groove 513 so that the fluid flowing from the orifice seating chamber 110 toward the outlet 150 may not be leaked to the outside of the support member 500. do.

3 is a front view of an orifice layer that is a component included in a multi-stage orifice for pressure drop according to a preferred embodiment of the present invention.

The orifice array is formed by stacking a plurality of orifice layers 310 in the form as shown in FIG. 3 in the orifice seating chamber.

When the orifice layer 310 is described in more detail, the orifice layer 310 has a cylindrical shape, and a flow path groove 313 is formed on one surface, and is formed to communicate with the flow path groove 313 on the other surface. An orifice hole 311 having a smaller diameter than the flow path groove 313 is formed. At this time, the orifice hole 311 is formed to be deflected to one side based on the center point (O) of the orifice layer.

 When the orifice layer 310 forms an orifice array and is accommodated in an orifice seating chamber, a flow path groove 313 and an orifice hole 311 formed in each orifice layer 310 constituting the orifice array are mutually different from the inlet and outlet. It is arranged linearly to communicate.

At this time, as shown in Figure 4, a perspective view showing the arrangement structure of the orifice array 300, which is a configuration included in a multi-stage orifice for pressure drop according to a preferred embodiment of the present invention, the orifice array 300 Each orifice layer 310 constituting is arranged so that the orifice hole 311 of the orifice layer 310 disposed adjacent to each other is formed at different positions, thereby fluidizing the orifice hole 311 of one orifice layer 310. After passing through, it is arranged continuously and then hits the wall surface of the orifice layer 310 to reduce the pressure of the fluid.

Preferably, the orifice array 300 is a virtual center line CL in which orifice holes 311 formed in each orifice layer 310 disposed adjacent to each other connect the center points O of the orifice layers disposed adjacent to each other. It is arranged to be deflected in different directions based on), further increasing the width of the change in the flow direction of the fluid to further reduce the pressure of the fluid.

In particular, the unspecified orifice layer 310 selected from the orifice arrays 300 is disposed adjacent to the first orifice layer 330 in which the first orifice hole 331 is formed, and the first orifice layer 330. 2 In the second orifice layer 350 in which the orifice hole 351 is formed, the first virtual line IL1 formed by connecting the center point O1 of the first orifice layer and the center point of the first orifice hole 331 to each other ) And the angle α formed by the second virtual line IL2 formed by connecting the center point O2 of the second orifice layer and the center point of the second orifice hole 351 to each other is at least 90 ° or more and 180 ° or less It is preferable to arrange them sufficiently spaced to be within the range of to increase the pressure drop effect of the fluid.

On the other hand, the method for fixing the relative positions of the orifice holes 311 formed in each of the orifice layers 310 disposed adjacent to each other as described above includes a method of fixing the orifice layer 310 to the orifice housing 100 and , Each orifice layer 310 constituting the orifice array 300 has a method of fixing positions between each other.

First, a description will be given of a method of fixing the orifice layer 310 with respect to the orifice housing 100 to fix the relative position of the orifice hole 311 formed in each of the orifice layers 310 disposed adjacent to each other.

5 is a cross-sectional view taken along line A-A 'of FIG. 1 to show a coupling relationship between an orifice layer and an orifice layer of a multi-stage orifice for pressure drop according to a preferred embodiment of the present invention.

As shown in FIG. 5, the orifice seating chamber 110 of the orifice housing 100 is formed with a plurality of restraining grooves 111 extending from one end of the orifice seating chamber 110 to the other end.

At this time, the first restraining groove 111a, which is one of the plurality of restraining grooves 111, and the second restraining groove 111b disposed adjacent to the first restraining groove 111a, is the center point (OC) of the orifice seating chamber. And a first virtual restraining line AL1 formed when connecting the first restraining groove 111a and a second virtual restraining line formed when connecting the center point OC of the orifice seating chamber and the second restraining groove 111b ( It is preferable that the angle β formed by AL2) is spaced apart so as to be in a range of at least 90 ° or more and 180 ° or less, and is arranged to be radially disposed.

An orifice layer 310 is formed on each orifice layer 310 on one side of the plurality of constraining grooves 111 protrudingly formed in a shape corresponding to the constraining groove 111 on the outside of the orifice layer 310. When the restraining protrusions 113 are fitted, the position of the orifice hole 311 with respect to the orifice seating chamber 110 is constrained. In addition, when each orifice layer 310 constituting the orifice array 300 is inserted into the orifice seating chamber 110, the orifice hole of another orifice layer 310 inserted before the orifice layer 310 to be currently inserted ( 311) is confirmed to be inserted in a biased direction, the orifice layer 310 may be additionally inserted.

For reference, when a plurality of constraining protrusions 113 are formed on the orifice layer 310, the angles between the constraining grooves 111 disposed adjacent to each other are all the same, and the orifice layer Each of the restraining protrusions 113 formed in 310 is also formed in a position and shape corresponding to any two or more restraining grooves 111 of the restraining grooves 111, thereby maximally restricting the fitting position of the orifice layer 310. It is desirable to reduce.

In addition, since the length of the orifice seating chamber 110 is fixed, when the number of orifice layers 310 constituting the orifice array 300 is small, the length of the orifice array 300 is the length of the orifice seating chamber 110. Shorter may cause a gap in the orifice seating chamber 110, in order to solve this problem, an annular seal may be additionally inserted between the orifice side of the orifice seating chamber 110 or between each orifice layer 310. .

Next, how to fix the position of each orifice layer 310 constituting the orifice array 300 to each other to fix the relative position of the orifice hole 311 formed in each of the orifice layer 310 disposed adjacent to each other I will explain.

6 is an exploded perspective view showing a coupling relationship of orifice layers constituting an orifice array according to another preferred embodiment of the present invention.

As illustrated in FIG. 6, a plurality of orifice layers 310 are formed to be spaced apart from each other at a predetermined angle so as to form radially around a center point (O) of each orifice layer on one side where a flow path groove 313 is formed. Dog fixing groove 115 is formed. At this time, the fixing groove 115 is preferably formed such that the angular spacing (γ) between each fixing groove 115 formed adjacent to each other is at least 90 ° or more, 180 ° or less. In addition, a fixing protrusion 117 formed to correspond to at least one of the fixing grooves 115 is formed on the other side of the orifice layer 310 where the channel groove 313 is formed.

Orifice layers constituting the orifice array according to another preferred embodiment of the present invention, through the above structure, any one of the first orifice layer 370 and the first orifice layer 310 forming the orifice array 300 In the second orifice layer 390 disposed on one side of the orifice layer 370, the second orifice layer 390 is formed in any one of the plurality of fixing grooves 115 formed in the first orifice layer 370. When the fixing protrusions 117 are seated, the positions of the orifice holes 311 formed in each of the first orifice layer 370 and the second orifice layer 390 are fixed.

When the shape of each of the fixing grooves 115 is formed to extend from the inside of the orifice layer 310 to the outside, as shown in FIG. 6, the fixing protrusions 117 of the orifice layers 310 disposed adjacently are not seated The fixing groove 115 is formed in an open shape when connecting each orifice layer 310 to form the orifice array 300, so that the fluid moving inside the orifice array 300 leaks into the orifice seating chamber 110. In order to prevent such a problem, an auxiliary seal 119 may be inserted between each orifice layer 310 in the orifice array 300 according to another preferred embodiment of the present invention.

The auxiliary seal 119 has an annular shape having the same diameter as the inner diameter and outer diameter of one side of the orifice layer 310, and has a shape corresponding to fixing grooves 115 formed on one side of the orifice layer 310 on one side. The auxiliary protrusions 120 are formed, and a position corresponding to any one of the fixing grooves 115 formed in the orifice layer 310 is formed in a form cut out in a shape corresponding to the fixing groove 115. . The auxiliary seal 119 is formed in the form as described above, and is inserted between the orifice layers 310 disposed adjacent to each other, thereby filling the remaining fixing groove 115 in which the fixing protrusions 117 are not seated to fill the orifice array. The fluid flowing through the 300 is stably distributed.

Here, of course, the fixing protrusion 117 is formed to be longer than the thickness of the auxiliary seal 119.

For reference, in FIG. 6, as described above, the shape of each fixing groove 115 is formed to extend from the inside of the orifice layer 310 to the outside, and the fixing protrusion 117 is also attached to any one of the fixing groove 115. Although shown as a corresponding formation, more preferably, the fixing groove 115 is formed to extend only to a predetermined range of the periphery of the orifice layer 310 so as not to extend to the inside of the orifice layer 310, so that the orifice layer 310 is formed. It is preferable that it does not interfere with the flow of the fluid that flows, and the fixing protrusion 117 will most preferably be formed to correspond to the shape of the fixing groove 115.

It should not be interpreted that the technical spirit is limited to the above-described embodiments of the present invention. Of course, the scope of application is various, and various modifications can be implemented at the level of those skilled in the art without departing from the gist of the present invention as claimed in the claims. Accordingly, such improvements and modifications fall within the protection scope of the present invention as long as it is apparent to those skilled in the art.

10: Multi-stage orifice for pressure drop
100: orifice housing
110: Orifice seating chamber
111: Redemption Home
111a: First binding groove
111b: Second binding groove
113: restraint
115: fixing groove
117: fixed projection
119: auxiliary seal
120: auxiliary protrusion
130: inlet
150: outlet
151: female thread
300: orifice array
310: orifice layer
311: Orifice Hall
313: Euro home
330: first orifice layer
331: 1st Orifice Hall
350: second orifice layer
351: 2nd Orifice Hall
370: first orifice layer
390: second orifice layer
500: support member
510: contraction
511: shrinkage flow path
513: seal insertion groove
515: seal
550: thread
AL1: first virtual constraint line
AL2: second virtual constraint line
CL: Virtual center line
IL1: First virtual line
IL2: Second virtual line
O: Center point of the orifice layer
O1: Center point of the first orifice layer
O2: Center point of the second orifice layer
OC: Center point of the orifice seating chamber
α: angle between the first virtual line and the second virtual line
β: angle between the first virtual constraint line and the second virtual constraint line

Claims (15)

In the form of a tube, an orifice seating chamber is formed in a central portion, an inlet port through which high-pressure fluid flows into one side, and an orifice housing formed into an outlet through which the fluid passing through the orifice seating chamber flows out on the other side; And
An orifice array in which a plurality of orifice layers are formed in the orifice seating chamber in a cylindrical shape, one orifice hole is formed on one surface, and an orifice hole communicating with the orifice hole having a larger diameter than the orifice hole is formed on the other surface; Including,
Each orifice layer constituting the orifice array is disposed such that a flow path groove formed in each and the inlet and the outlet communicate with each other,
Orifice holes of the orifice layer disposed adjacent to each other are arranged to be formed at different positions,
In the orifice seating chamber, a plurality of confining grooves extending from one end to the other end of the orifice seating chamber are formed on an inner surface,
In the orifice layer, a restriction protrusion is formed on an outer surface, and the restriction protrusion is fitted into any one of the restriction grooves, thereby constraining the position of the orifice hole with respect to the orifice seating chamber,
The orifice layer, a plurality of fixing grooves are formed so as to be spaced apart from each other at a predetermined angle to form a radial on either side of the two sides, and to correspond to at least one of the fixing grooves on the other side where the fixing groove is not formed Fixed protrusions are formed,
The orifice array may include a first orifice layer, which is one of the orifice layers, and a second orifice layer disposed adjacent to one side of the first orifice layer, between the first orifice layer and the second orifice layer. Arranged, the orifice layer and the inner diameter and the outer diameter further includes an annular auxiliary seal,
In the auxiliary seal, a portion corresponding to the fixing protrusion of the second orifice layer is cut out of positions corresponding to the fixing grooves formed in the first orifice layer, and the remaining portion of the first orifice layer side is The auxiliary protrusion is formed to be inserted into the fixing groove of the first orifice layer,
The fixing protrusion formed in the second orifice layer is inserted into any one of the fixing grooves formed in the first orifice layer through the cut out portion of the auxiliary seal, and the auxiliary protrusions formed in the auxiliary seal are the first Multi-orifice for pressure drop, characterized in that the position between the orifice hole formed in each of the first orifice layer and the second orifice layer is fixed by being inserted into the remaining fixing grooves formed in the 1 orifice layer.
According to claim 1,
The orifice hole,
Multi-stage orifice for pressure drop, characterized in that it is formed to be biased to one side based on the center point of the orifice layer.
According to claim 2,
The orifice array,
The orifice hole formed in each orifice layer disposed adjacent to each other is arranged to be deflected in different directions based on a virtual center line connecting the center points of the orifice layers disposed adjacent to each other, and fluid passing through the orifice housing. Multi-stage orifice for pressure drop, characterized in that to effectively lower the pressure of the.
According to claim 3,
The orifice array,
A first orifice layer in which a first orifice hole is formed and a second orifice disposed adjacent to the first orifice layer and in which a second orifice hole is formed, the center point of the first orifice layer and the first orifice hole are connected to each other Characterized in that the angle formed between the first virtual line formed, the center point of the second orifice layer and the second virtual line formed by connecting the second orifice hole is at least 90 ° or more and 180 ° or less. Multi-stage orifice for pressure drop.
According to claim 1,
The multi-stage orifice for pressure drop,
Multi-orifice for pressure drop, characterized in that it further comprises a; in the form of a tube, the coupling member is fitted to the outlet side so that the orifice array does not deviate from the orifice housing.
The method of claim 5,
The inner diameter of the outlet,
It is formed equal to or larger than the inner diameter of the orifice seating chamber,
The support member,
Is detachably coupled to the outlet,
Each orifice layer constituting the orifice array is formed by being inserted into the orifice seating chamber through the outlet to form a multi-stage orifice for pressure drop.

delete According to claim 1,
The restraining groove,
In the first restraining groove and the second restraining groove formed adjacent to each other, the first virtual restraining line connecting the center point of the orifice seating chamber and the first restraining groove, the center point of the orifice seating chamber, and the second restraining groove A multi-stage orifice for pressure drop, characterized in that the angle formed by the connected second virtual restraining line is spaced apart so as to be at least 90 ° or more and 180 ° or less.
delete According to claim 1,
The fixing groove,
Multi-stage orifice for pressure drop, characterized in that formed so that the angular spacing between each fixing groove formed adjacent to each other is at least 90 ° or more, 180 ° or less.
The method of claim 5,
The support member,
A thread is formed on the outer surface,
The outlet,
A multi-stage orifice for pressure drop, wherein a female thread is formed inside, and the support member can be brought into close contact with the orifice seating chamber by screwing the support member to the outlet.
The method of claim 11,
The support member,
A multi-stage orifice for pressure drop, wherein a wrench groove for coupling a torque wrench is formed inside the orifice seating chamber provided on the opposite side, and the support member can be detached from the outlet through the torque wrench.
The method of claim 5,
The support member,
For the pressure drop, characterized in that to further reduce the pressure of the introduced fluid when the fluid passing through the orifice seating chamber flows into the outlet side, the shrinking portion is formed in the form of the inner diameter of the orifice seating chamber is contracted. Multistage orifice.
The method of claim 13,
The shrinking portion,
An annular seal insertion groove is provided on a side contacting the orifice layer,
A multi-stage orifice for pressure drop, wherein an annular seal is inserted into the seal insertion groove to seal the fluid flowing from the orifice seating chamber so that it does not flow out of the support member.
According to claim 1,
The inlet,
At least a connection portion with the orifice seating chamber is formed to be smaller than the inner diameter of the orifice seating chamber, so that the orifice array inserted in the orifice seating chamber does not deviate from the orifice seating chamber, the multi-stage orifice for pressure drop.

Images