KR101168755B1 - Differential pressure control valve - Google Patents

Abstract

PURPOSE: A complex flow regulating valve is provided to have a temperature control function, an automatic balancing function, a differential pressure control function, a foreign material removal function, and an automatic draining function with one valve. CONSTITUTION: A complex flow regulating valve comprises an upper body, a lower body(30), a fluid moving unit(40), a pressurization part(50), a fluid regulating unit(60), a lower fixing body(70), and a flow regulating cartridge(80). A balance passage(25) for regulating balance of flow is obliquely formed in the upper body. The fluid moving unit is mounted on an opening part(24) of the upper body and comprises an upper fluid passage, a lower fluid passage, and an internal fluid passage. The pressurization part is mounted on an operation coupling unit(23) and is vertically operated according to the operation of an actuator. The fluid regulating unit is interlocked with the pressurization part to regulate the flow of fluid passing through the upper fluid passage of the fluid moving unit. The lower fixing body is installed in the lower body locating in a collinear line of the fluid regulating unit. The flow regulating cartridge is mounted inside the fluid moving unit and comprises a vertical operation unit(82) contacting with the pressurization part and a spring(84) supporting the vertical operation unit.

Description

Compound Flow Control Valve {DIFFERENTIAL PRESSURE CONTROL VALVE}

The present invention relates to a composite flow control valve, and more particularly, to a composite flow control valve to perform a plurality of functions in one valve.

In general, heating circulation piping consisting of closed circuit piping of several branches uses constant flow valves to control a constant flow rate at each branch pipe regardless of its opening / closing ratio.

Therefore, each branch pipe of the heating circulation pipe is fluctuated according to the opening and closing state of the other branch pipe.

At this time, the differential pressure flow control valve developed to solve the problem of the constant flow valve is installed in the return pipe of the load equipment is configured to maintain the flow rate of each branch pipe by maintaining the proper differential pressure of the load equipment.

That is, the differential pressure flow control valve is to maintain the differential pressure and the flow rate required according to the fluid situation in the load in order to improve the problem of the constant flow valve system that can not control the fluid situation according to the fluctuation of the flow rate.

However, the conventional differential pressure flow control valve performs only one function to keep the flow constant, and has to be equipped with a separate configuration to control foreign matter removal, balance, and differential pressure, thereby increasing its size, and thus manufacturing and installation costs. There was a problem to be increased.

Korea Patent Registration No. 10-0907343 Korea Patent Registration No. 10-0635107

The present invention has been made in order to solve the above problems, it is an object to perform a temperature control function, automatic balance function, differential pressure control function, foreign matter removal function, automatic drain function in one valve.

In order to achieve the above object, an inlet and an outlet through which fluid enters and exits are formed on both sides, and an operating coupler is formed in the center thereof, and an opening is formed under the operating coupler, between the opening and the discharge port. The upper body and the balance passage is formed to be inclined so as to adjust the balance of the flow rate; A lower body coupled to a lower portion of the upper body; A hollow fluid moving hole mounted to an opening of the upper body and having upper and lower fluid passages and an inner fluid passage formed at upper, lower and inner sides thereof to move the fluid; A pressurizing portion mounted to the operation coupler and vertically operated according to the operation of the actuator coupled to the upper portion; A fluid control device mounted on an upper part of the opening part and configured to interlock with each other when the pressurizing part is operated to adjust a flow rate of the fluid passing through the upper fluid path of the fluid moving device; A lower fixture installed on a lower body positioned on the same line of the fluid regulator; A flow rate adjustment cartridge configured to be mounted inside the fluid movement port and in contact with the pressurizing portion, and a spring for supporting the vertical operation hole; And a control unit.

According to the present invention, it is configured to perform the temperature control function, automatic balance function, differential pressure control function, foreign material removal function, automatic drain function in one valve to reduce the price and installation cost of the product, and reduce the size of the parts It is possible to reduce labor cost and work cost.

1 is a front view showing a combined flow control valve according to the present invention.
Figure 2 is a cross-sectional view showing a composite flow rate control valve according to the present invention.
Figure 3 is a cross-sectional view showing a fluid movement port constituting the combined flow control valve according to the present invention.
Figure 4 is a cross-sectional view showing a differential pressure valve constituting a composite flow control valve according to the present invention.
5 is a view showing a state of use of the combined flow control valve according to the present invention.

Hereinafter, the configuration of the present invention with reference to the accompanying drawings, Figure 1 is a front view showing a composite flow control valve according to the invention, Figure 2 is a cross-sectional view showing a composite flow control valve according to the invention, Figure 3 4 is a cross-sectional view showing a fluid movement port constituting the composite flow control valve according to the present invention, Figure 4 is a cross-sectional view showing a differential pressure valve constituting the composite flow control valve according to the present invention.

Composite flow control valve 10 of the present invention is the upper body 20 through which the fluid passes, the lower body 30 is coupled to the lower portion of the upper body 20, and is mounted inside the upper body 20 A fluid moving part 40, a pressurizing part 50 mounted on the upper body 20 and vertically operated according to the operation of the actuator 90, and mounted on the inside of the upper body 20 and pressurizing part 50. At the time of operation), the fluid regulator 60 to adjust the flow rate of the fluid, the lower fixture 70 is mounted to the inside of the upper body 20, and the fluid movement hole 40 in the interior Flow rate control cartridge 80 to be mounted, the differential pressure valve 100 is mounted to the upper body 20 to mitigate this when the differential pressure is generated, the strainer 110 is mounted to the fluid moving port 40 and filters foreign matters, etc. It consists of.

The upper body 20 has an inlet 21 and an outlet 22 through which fluid enters and falls on both sides thereof, and an operating coupler 23 protrudes from a predetermined section in the center thereof, and a lower portion of the operating coupler 23. An opening portion 24 is formed in the opening portion, and the balance passage 25 is formed to be inclined between the opening portion 24 and the discharge port 22 so as to adjust the balance of the flow rate.

That is, the upper body 20 forms an inlet 21 and an outlet 22 so as to allow fluid to move on both sides, and forms an operating coupling port 23 and an opening 24 in the center thereof, and the opening part. The balance passage 25 is inclinedly formed between the 24 and the discharge port 22.

At this time, the stepped portion 23a is formed in the inside of the operating coupler 23 for fixing and supporting the pressing hole 50, and an inlet 21 at the boundary between the operating coupler 23 and the opening 24. ) And a boundary portion 29 is formed to distinguish the outlet 22 and the balance passage 25.

In addition, a connection passage 26 is formed between the upper portion of the opening portion 24 constituting the upper body 20 and the balance passage 25, and the connection passage coupling portion communicating with the outside is formed in the connection passage 26. 27) is formed.

In addition, the connection passage coupling portion 27 is equipped with a differential pressure valve 100 so as to relieve the differential pressure generated according to the flow rate, the differential pressure valve 100 is coupled to the connection passage coupling portion 27, the guide groove in the center A differential pressure fastener 101 having a 102 formed thereon, and a differential pressure bar 103 that slides while one end is inserted into the guide groove 102 and the opposite side opens or blocks the connection passage 26. , And the differential pressure spring 104 mounted between the differential pressure fastener 101 and the differential pressure bar 103.

That is, the differential pressure valve 100 normally blocks the connecting passage 26 through the elasticity of the differential pressure spring 104 and the differential pressure bar 103, and then retreats by the pressure when the differential pressure is generated according to the flow rate of the balance passage 25. To open the connection passage 26.

In the middle of the inlet 21 constituting the upper body 20, an auxiliary passage 28 is formed in the lower vertical direction to discharge the fluid contained therein to the outside.

In further detail, the auxiliary passage 28 is formed in the lower vertical direction and connected to the lower connection passage of the lower body 30 to serve as a passage for discharging the fluid contained in the upper body 20 to the outside. Will be.

The lower body 30 coupled to the lower portion of the upper body 20 is coupled to the opening 24 of the upper body 20 to seal off the lower portion of the upper body 20.

In addition, an inner side of the lower body 30 is formed with a lower connection passage 32 which is connected to one side of the auxiliary passage 28 and the opposite side communicates with a lower portion of the opening 24, and the lower connection passage ( One side of the 32 is formed with a discharge passage 34 in communication with the outside.

At this time, the discharge passage 34 is equipped with an automatic drain valve 120 to discharge or block the fluid contained in the upper body 20.

 In further detail, the lower connection passage 32 communicates with the auxiliary passage 28, the opening 24, and the discharge passage 34 while providing an automatic drain valve 120 mounted to the discharge passage 34. To drain or shut off the fluid.

The fluid movement hole 40 mounted on the opening part 24 of the upper body 20 is formed at intervals between cylindrical cases 41 and 42 having different diameters, and Horizontal bars 43 are formed at intervals therebetween.

The upper fluid passage 44, the lower fluid passage 45, and the inner fluid passage 46 are respectively formed in the upper, lower, and inside of the fluid moving port 40.

That is, the fluid moving port 40 flows the fluid flowing through the inlet 21 of the upper body 20 into the upper fluid passage 44 and then transfers the fluid to the connection passage 26 or the internal fluid passage 46. It is then to be able to move to the balance passage 25 through the lower fluid passage (45).

In this case, a mesh strainer 110 is mounted to the lower portion of the fluid moving port 40 so as to filter foreign matter of the fluid moving to the balance passage 25 through the lower fluid passage 45.

The pressing unit 50 installed vertically on the operation coupler 23 is formed in a hollow shape having a predetermined height and diameter, and a pressing step unit 52 is formed at the center portion.

That is, the pressing unit 50 is mounted on the operation coupler 23 and protrudes a predetermined section, and is coupled to the actuator 90 at the upper portion thereof, and operates in the vertical direction to control the flow rate when the actuator 90 is operated. It would be.

The fluid adjusting device 60 mounted in the operating coupler 23 is formed stepped like the inside of the operating coupler 23 and is mounted to the lower portion of the pressing unit 50.

That is, the fluid adjusting device 60 is mounted on the lower part of the pressing part 50 to operate in conjunction with the operation of the pressing part 50 to adjust the size of the upper fluid passage 44 of the fluid moving hole 40. will be.

In further detail, the fluid adjusting device 60 has the upper end supported or coupled to the pressing step 52 of the pressing unit 50, and the lower end is connected to the fluid when the pressing unit 50 is operated. The upper fluid passage 44 of the moving port 40 is to be blocked from the top to the bottom.

The lower fixing body 70 installed in the lower body 30 positioned on the same line as the fluid adjusting device 60 is disposed in the housing 71 and the housing 71 coupled to the lower body 30. It is composed of a bracket (72) to be mounted and a fixture (73) for fixing the housing (71) and the bracket (72).

That is, the lower fixture 70 is fixed to the housing 71 and the bracket 72 by using the fastener 73 while mounting the housing 71 and the double bracket 72 to the lower body (30).

The flow rate control cartridge 80 mounted inside the fluid movement port 40 is a vertical actuating opening 82 which is in contact with the pressing unit 50 and a spring 84 supporting the vertical actuating opening 82. It is composed.

That is, the flow rate adjustment cartridge 80 is a spring mounted between the vertical operating port 82 and the double bracket 72 while the upper end of the vertical operating port 82 is in close contact with the lower end of the pressing unit 50. It is to be elastically supported by 84.

Here, the lower end of the pressing unit 50 and the upper end of the vertical actuating port 82 are formed in a semicircle or pointed point for accurate transmission and operation of force.

Referring to the embodiment of the composite flow rate control valve configured as described above are as follows.

First, the inlet 21 and the outlet 22 through which the sieve enters and exits are formed at both sides, and an operating coupler 23 is formed at the center to protrude a predetermined section. The balance passage 25 is formed to be inclined between the opening portion 24 and the discharge port 22 so as to adjust the balance of the flow rate, and between the upper portion of the opening portion 24 and the balance passage 25. A connecting passage 26 is formed in the connecting passage 26, and a connecting passage coupling part 27 is formed in communication with the outside, and an auxiliary passage 28 is formed in the lower vertical direction in the middle of the inlet 21. Configure the upper body 20 to be.

And the differential pressure fastener 101 is coupled to the connection passage coupling portion 27 by the connection passage coupling portion 27 and the guide groove 102 is formed in the center, and one end of the guide groove 102 is inserted into the guide passage 102. A differential pressure valve comprising a differential pressure bar 103 mounted on the opposite side and opening or blocking the connection passage 26 and a differential pressure spring 104 mounted between the differential pressure fastener 101 and the differential pressure bar 103 ( 100).

Next, the operation coupler 23 has a predetermined height and diameter and is mounted on the center portion of the pressing portion 50 in which the pressing step portion 52 is formed to be stepped, and then hollowed out under the pressing portion 50. It is formed to be stepped in shape and the upper end is equipped with a fluid regulator (60) supported by the pressing step (52).

In addition, cylindrical openings 41 and 42 having different diameters are formed at intervals in the opening portion 24, and horizontal bars 43 are formed at intervals between the cases 41 and 42. The upper and lower parts and the inside are equipped with a fluid moving port 40 in which an upper fluid passage 44, a lower fluid passage 45, and an inner fluid passage 46 are formed to move the fluid.

At this time, the lower fluid passage 45 of the fluid moving port 40 is equipped with a strainer 110 to filter foreign matter.

Next, the flow regulating cartridge 80 is composed of a vertical operating port 82 in contact with the pressing unit 50 into the fluid movement port 40 and a spring 84 supporting the vertical operating port 82. After mounting the lower body 30 to the lower portion of the upper body 20, the assembly of the combined flow control valve 10 is completed.

Here, the assembly sequence of the complex flow control valve reveals that it can be configured differently from the above.

Next, look at the state of use of the composite flow control valve configured as described above are as follows.

First, the actuator 90 is mounted on the pressurization unit 50, and then the actuator 90 is operated to adjust the set amount of the fluid according to the purpose and purpose.

That is, when the actuator 90 is operated, the pressurization unit 50 and the fluid regulator 60 are interlocked with each other, and the lower end of the fluid regulator 60 is the upper fluid passage of the fluid movement port 40. By adjusting the size of 44, the moving flow rate of the fluid is controlled.

Next, when the fluid is delivered to the inlet 21 of the upper body 20 constituting the composite flow control valve 10, the fluid is moved to the inside of the upper body 20 through the inlet 21, It is moved to the balance passage 25 through the upper fluid passage 44, the inner fluid passage 46, and the lower fluid passage 45 of the fluid moving port 40, and then is discharged to the outside through the outlet 22. .

At this time, the foreign matter contained in the fluid is filtered through the strainer 110 is installed in the lower portion of the fluid moving port 40, the differential pressure bar 103 of the differential pressure valve 100 mounted on the connection passage coupling portion 27 By using the elasticity of the differential pressure spring 104 to block the connecting passage (26).

When the differential pressure is generated in the interior of the upper body 20 and the balance passage 25 in the above state, the fluid is supplied to the connection passage 26 while the differential pressure bar of the differential pressure valve 100 By retracting 103 to allow fluid to be delivered to a portion where the balance passage 25 and the outlet 22 contact each other, a constant pressure state is maintained.

Next, when the pressure inside the upper body 20 and the balance passage 25 drops to a set state, the differential pressure bar 103 of the differential pressure valve 100 is connected to the connection passage 26 by the elasticity of the differential pressure spring 104. Blocking will keep the same state as the first time.

In the above description with reference to the accompanying drawings, the present invention is a composite flow control valve in the description of a specific shape and direction, but the present invention can be variously modified and changed by those skilled in the art, such modifications and changes are the rights of the present invention It should be construed as being included in the scope.

10: combined flow control valve, 20: upper body,
30: lower body, 40: fluid port,
50: pressure port, 60: fluid regulator,
70: lower fixture, 80: flow rate adjustment cartridge,
90: actuator, 100: differential pressure valve,
110: strainer, 120: automatic drain valve.

Claims (6)

Inlet 21 and outlet 22 through which fluid enters and exits are formed on both sides, and an operating coupler 23 is formed in the center thereof, and an opening 24 is formed below the operating coupler 23. An upper body 20 between which the balance passage 25 is inclined so as to adjust the balance of the flow rate between the opening 24 and the outlet 22;
A lower body 30 coupled to a lower portion of the upper body 20;
The upper fluid passage 44, the lower fluid passage 45, and the inner fluid passage 46 are formed on the opening 24 of the upper body 20 and move upper, lower, and inside of the upper body 20. A hollow fluid moving port 40;
A pressing unit 50 mounted vertically in accordance with the operation of the actuator 90 mounted to the operation coupler 23 and coupled to the upper portion;
A fluid control device mounted on an upper portion of the opening part 24 and controlling the flow rate of the fluid passing through the upper fluid passage 44 of the fluid moving port 40 by interlocking operation when the pressing part 50 is operated ( 60);
A lower fixture 70 installed on the lower body 30 positioned on the same line of the fluid adjusting device 60;
The flow rate control cartridge 80 is installed in the fluid movement port 40 and consists of a vertical operating port 82 in contact with the pressing unit 50 and a spring 84 for supporting the vertical operating port 82. ); Complex flow rate control valve, characterized in that consisting of.
The method according to claim 1,
The upper body 20 is equipped with a differential pressure valve 100 to mitigate this when the differential pressure of the balance passage 25,
The differential pressure valve 100 is a composite flow rate, characterized in that mounted on the connecting passage coupling portion 27 is formed between the upper portion of the opening portion 24 and the connecting passage 26 for connecting the balance passage 25 Control valve.
The method according to claim 2,
The differential pressure valve is coupled to the connecting passage coupling portion 27 and the differential pressure fastener 101, the guide groove 102 is formed in the center, and the one side end is inserted into the guide groove 102, the sliding operation and the opposite The side is composed of a differential pressure bar 103 for opening or closing the connection passage 26, and a differential pressure spring 104 mounted between the differential pressure fastener 101 and the differential pressure bar 103. Control valve.
The method according to claim 1,
Complex flow control valve, characterized in that the strainer (110) is mounted on the outer surface of the fluid flow port 40, the lower fluid passage 44 is formed to filter foreign matter.
The method according to claim 1,
In the middle of the inlet 21 constituting the upper body 20, an auxiliary passage 28 is formed in the lower vertical direction, and one side of the lower body 30 communicates with the lower side of the opening 24 and the opposite side thereof. A lower connection passage 32 is formed in communication with the auxiliary passage 28, and the discharge passage 34 and the automatic drain valve 120 for discharging the fluid to the outside are mounted in the middle of the lower connection passage 32. A composite flow control valve characterized in that.
The method according to claim 1,
The lower end of the pressing portion 50 and the upper end of the vertical operation port 82 is a composite flow rate control valve, characterized in that formed in a semi-circle or pointed shape.

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