KR20180018936A - Valve exchange device of Small Voume Prover - Google Patents

Abstract

The present invention relates to a valve exchange device of a small volume prover, and more specifically, to a valve exchange device of a small volume prover which is installed in a part of a housing of the small volume prober (S.V.P) which tests the accuracy of a flowmeter, so that valves can be exchanged easily and quickly without removing the entire reference meter when a volume valve is worn. In the valve exchange device of a small volume prover of the present invention, an inlet pipe (14) to which the flowmeter is connected is connected to the housing (21) via an inlet connection pipe (15); the housing (21) is fixed to an up cover (22) and a down cover (23) with a stud bolt (32) and stud nuts (33, 34) on both sides and connects an outflow pipe (24) to the right side; and a hydraulic cylinder (10) for driving a cylinder shaft (11) connected to a volume valve (27) provided in an inner diameter of the housing (21) is included so that the precision of the flowmeter is tested through the volume in accordance with the reciprocating movement of the volume valve (27).

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a small-

[0001] The present invention relates to a valve exchange apparatus for a small volume probe, and more particularly, to a valve exchange apparatus for a small volume probe, which is installed in a part of a housing of a small volume probe (SVP) Which can be exchanged simply and quickly without having to remove one entire part of the valve.

The flow meter is a device for measuring the flow rate of a fluid flowing in a pipe. The full pipe refers to a state in which the pipe is completely filled, and the obesity pipe refers to a state in which the fluid can not completely fill the pipe and occupies only a part of the pipe cross-sectional area. Accordingly, the flow meter is divided into a full pipe and an obesity pipe flow meter.

Firstly, electronic flowmeters, ultrasonic flowmeters, volumetric flowmeters, turbine flowmeters, and vortex flowmeters are widely used as full-scale flowmeters.

An electronic flowmeter is a flowmeter that measures the flow rate of a conductive fluid using the Faraday electromagnetic induction law. The volumetric flowmeter is a flowmeter that measures the flow rate by the rotation of the rotor. Turbine flowmeter is a flowmeter that measures the flow rate by using the number of revolutions of the rotor, which is contained in the liquid and rotates in proportion to the flow rate of the liquid. The ultrasonic flowmeter is composed of a 'time difference type' ultrasonic flowmeter that measures the transmission time of ultrasonic waves transmitted from the detector to the channel according to the average flow rate, and a 'time difference type ultrasonic flowmeter, which measures the flow velocity of the particles contained in the channel using the Doppler shift frequency. Doppler type 'ultrasonic flowmeter.

And the flowmeter is a flowmeter that measures the flow rate by measuring the vortex applied to a vortex generator (Bluff Body) which generates a vortex and is used in various industrial processes such as nuclear power plants and petrochemical facilities.

As such, the full-scale flowmeter used in the industry is used for water leakage measurement, pump capacity check, flow measurement, flow rate balancing and area flow meter check. Leakage measurements are made by measuring and comparing the flow rates of incoming and outgoing lines at the feed and drain lines of the fluid. The pump capacity check is made by measuring the flow rate from the pump. The comparative measurement of the flow rate is used to verify the performance of the existing flowmeter by comparing it with the existing flowmeter. The flow balancing is to measure the flow rate for each branch point and then operate the valve appropriately to adjust the flow rate line by line. The area flow meter check is to compare the measured values of the flow meter of the customer meter and the area meter to determine the abnormality.

Such a valve is connected to a flow meter for controlling the supply amount of the flow amount according to the open position and it is necessary to verify whether the accuracy of the reference flow meter can be guaranteed by supplying the constant flow amount to the valve. For verification, the test is performed through the Small Volume Probe (SVP).

In such a small volume prover, an inflow pipe connected to the flow meter is connected to the housing through a hydraulic connection pipe, and a volume valve installed inside the housing drives the hydraulic cylinder while the hydraulic valve is connected to the hydraulic cylinder through the cylinder shaft, And the accuracy of the flow meter is tested by adjusting the volume of the housing.

In the Utility Model Registration No. 0240245 (registered on July 16, 2001), which is filed by the present applicant (the name of the right holder is changed), the inlet direction is set at a direction perpendicular to the side of the volume body, And flows into the volume valve while rotating while colliding with the inner surface. The cylinder inlet side is formed with a vortex and is supplied to the inside of the housing provided with the volume valve by the force, thereby testing the accuracy of the flow meter.

However, as the volume valve is reciprocated according to the continuity of the experiment, the O-ring or the valve is worn out, and the valve is replaced when the volume valve moves to prevent the fluid from flowing backward.

In order to replace the volume valve, the stud nut 34 connected to the down flange 23 and the third flange 35 and the bending pipe 36 of the outlet pipe 24 are connected to the connecting pipe 38, It is necessary to expose the volume valve to the right end of the housing 21 as shown in the drawing and then replace the volume valve with a new one. Therefore, it takes a long time to separate and join the flange for replacing the volume valve And the disassembly and the joining were too difficult.

Document 1. Utility Model Registration No. 0240245 (registered on July 16, 2001) Document 2. Patent Registration No. 0906922 (Registered on July 07, 2009) Literature 3. Patent Registration No. 1257018 (Registered on Mar. 16, 2013) Literature 4. Patent Registration No. 0871287 (registered on November 25, 2008)

SUMMARY OF THE INVENTION Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and it is an object of the present invention to provide a volume valve, in which a volume valve is reciprocated in a part of a housing through a flange- The purpose is simple and quick exchange.

The present invention is characterized in that an inflow pipe to which a flow meter is connected is connected to a housing through an inflow connection pipe, the housing has an up-cover and a down-cover at both sides thereof fixed with stud bolts and stud nuts, 1. A valve exchange apparatus for testing the accuracy of a flow meter through a volume in accordance with reciprocating movement of a volume valve, including a hydraulic cylinder for driving a cylinder axis connected to a volume valve provided in an inner diameter,

And cutting the portion of the housing into a separate housing and a side housing, and then coupling the side housing to the down cover,

A first flange protruding from a front end of the housing and a separating flange protruding from a front end of the separating housing are inserted into the separating nut through a screw shaft,

A second flange protruding from a front end of the side housing, and a flange type split / swap device which passes through a separating flange projecting from a front end of the separating housing through a screw shaft and is coupled to the separating nut by a separating nut.

The present invention provides an effect that the volume valve can be exchanged easily and quickly after the separation housing is separated from a part of the housing through the flange type split exchange device in which a part of the housing in which the volume valve reciprocates is cut and joined .

The present invention provides the effect that the separation housing can be exchanged easily and quickly through the housing, the flange type, the wedge type, and the flange and the wafer mixture type.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a front elevation view
2 is an enlarged cross-sectional view of a main part of the present invention
Fig. 3 is an enlarged cross-sectional view of a main part of the present invention in a state in which a separate housing is separated
Figure 4 is a side cross-sectional view of a major part of the present invention
Figure 5 is an enlarged cross-sectional view of a major part of another embodiment of the present invention
6 is an enlarged cross-sectional view of another embodiment of the present invention in a state in which the separation housing is separated
Figure 7 is a side cross-sectional view of a major portion of another embodiment of the present invention
8 is an enlarged cross-sectional view of a main part of another embodiment of the present invention
9 is an enlarged cross-sectional view of a separate housing according to another embodiment of the present invention
10 is a side sectional view of a main portion of another embodiment of the present invention

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is an enlarged cross-sectional view of a main part of the present invention, FIG. 3 is an enlarged cross-sectional view of a main part of the present invention with a separate housing detached, FIG. Figure 4 shows a side cross-sectional view of a major part of the present invention.

The inlet pipe 14 is connected to the inlet of the housing 21 through the inlet connection pipe 15 and the inlet pipe 14 is connected to the inlet pipe 14, A volume valve 27 is provided to connect the cylinder shaft 11 on one side and to reciprocate through the hydraulic cylinder 10. [

The cylindrical housing 21 is hermetically fixed on both sides by an up cover 22 and a down cover 23. The up and down covers 22 and 23 are provided with stud bolts 32 are passed through and fastened with stud nuts 33, 34.

An outflow tube 24 is connected to the down cover 23 and an outer diameter of the disk 30 to which the cylinder shaft 11 is connected is sealed to the inside diameter of the housing 21 through the bracket 29, A volume valve 27 is connected from the both sides through the holder 28.

The connection flange 13 and the riser 12 are connected to the inlet connection pipe 15 connected to the up cover 22 and the hydraulic cylinder 10 is connected to the riser 12.

The separating housing 41 is divided into a housing 21 and a side housing 42 so as to separate the up cover 22 and the down cover 23 And the flange-type split / swap device 40 is installed so that the split housing 41 can be separated.

A first flange 44 protrudes with an outer diameter at a portion where the front end of the housing 21 meets the separating housing 41 and a second flange 44 protrudes from a portion where the side housing 42 and the separating housing 41 meet, The flange 44 and the flange 44 are separated from each other at the outer diameters of both ends of the separating housing 41. [

The housing 21 and the side housing 42, which meet the separation housing 41, are coupled through a seal 43.

The first flange 44 and the separating flange 46 penetrate the screw shaft 48 at regular intervals and are fixed by a separating nut 49 on both sides. The screw shaft 48a is passed through the screw shaft 48a at a constant interval and fixed by the separation nut 49a on both sides.

FIG. 5 is an enlarged cross-sectional view of a main part according to another embodiment of the present invention, FIG. 6 is an enlarged cross-sectional view of a separate housing according to another embodiment of the present invention, Sectional side view of the main part.

The separating housing 41 is divided into a housing 21 and a side housing 42 so as to separate the up cover 22 and the down cover 23 And the flange-type split / swap device 40 is installed so that the split housing 41 can be separated.

A first wafers 50 are protruded with an outer diameter at a portion where the front end of the housing 21 meets the detachment housing 41. A portion of the second housing 41 where the side housing 42 and the detachment housing 41 meet, And separating wafers 52 and 52a protrude from both outer ends of the separating housing 41 so as to meet with the first and second wafers 50 and 51.

The housing 21 and the side housing 42, which meet the separation housing 41, are coupled through a seal 43.

The first wafers 50 and the second wafers 51 facing each other and the separating wafers 52 are opposed to each other.

FIG. 8 is an enlarged cross-sectional view of a main part according to still another embodiment of the present invention, FIG. 9 is an enlarged cross-sectional view showing a separate housing separated from another embodiment of the present invention, and FIG. Sectional view of a major part of the example.

The separating housing 41 is divided into a housing 21 and a side housing 42 so as to separate the up cover 22 and the down cover 23 And the flange-type split / swap device 40 is installed so that the split housing 41 can be separated.

A first flange 44 protrudes with an outer diameter at a portion where the front end of the housing 21 meets the separating housing 41 and a second flange 44 protrudes from a portion where the side housing 42 and the separating housing 41 meet, (45) protrudes from both ends of the separation housing (41).

The first flange 44 and the second flange 45 penetrate the flange fixing bolts 60 at regular intervals and fix the flange nuts 61 and 62 on both sides.

In the valve exchange apparatus of the small volume probe of the present invention having the above-described structure, the fluid flowing into the inflow pipe 14 through the flow meter is supplied to the inside of the housing 21 through the inflow connection pipe 15.

Is to test the accuracy of the flowmeter by calculating the volume from the start point of the cylinder axis 11 to the stopping point at which the volume valve 27 starts and stops as the fluid is supplied to the interior of the housing 21.

In the process of testing the precision of the flow meter through the small volume probe, the volume valve 27 is continuously reciprocated through the cylinder axis 11 of the hydraulic cylinder 10 and is consumed through friction with the housing 21, The volume valve 27 including the O-ring 31 is exchanged at regular intervals in order to prevent the fluid from flowing out through the friction.

To replace the volume valve 27, as shown in Figs. 1 to 4, the first flange 44, the separation flange 46, the second flange 45 and the separation flange 47 are fixed The nuts 49 and 49a are released to separate the screw shafts 48 and 48a,

After separating the stud nut 34 fixing the stud bolt 32 of the down cover 23 so that the separating housing 41 can be separated therefrom, the separating housing 41 is separated from the housing 21, Separates between the housings 42,

The hydraulic cylinder 10 is driven so that the cylinder shaft 11 moves the volume valve 27 to a position where the separation housing 41 is removed and the volume valve 27 is removed and replaced with a new one.

After the volume valve 27 is replaced, the stud bolt 32 is fixed to the down cover 23 by means of the stud nut 34, and the flange 46 is fixed to the separating flange 46 of the separating housing 41 The first and second flanges 44 and 45 are engaged to fix the separation nuts 49 and 49a to the screw shafts 48 and 48a to complete the replacement operation.

To replace the volume valve 27, the stud nut 34 of the down cover 23 is detached to release the engagement of the stud bolt 32, as shown in FIGS. 5 to 7, Separates the separating housing 41 between the housings 42,

The hydraulic cylinder 10 is driven so that the cylinder shaft 11 moves the volume valve 27 to a position where the separation housing 41 is removed and the volume valve 27 is removed and replaced with a new one.

After the volume valve 27 is exchanged, the separation housing 41 is supplied between the housing 21 and the side housing 42 in the reverse order to the assembling procedure, and then the stud bolt 32 is inserted into the stud- The first and second wafers 50 and 51 and the separating wafers 52 and 52a are fixed while being fixed with respect to the yarn 43 so as to complete the replacement operation.

In order to replace the volume valve 27, the flange nuts 61 and 62 fixing the first flange 44 and the second flange 45 are loosened, as shown in Figs. 8 to 10, (60) is separated,

After separating the stud nut 34 fixing the stud bolt 32 of the down cover 23 so that the separating housing 41 can be separated therefrom, the separating housing 41 is separated from the housing 21, Separates between the housings 42,

The hydraulic cylinder 10 is driven so that the cylinder shaft 11 moves the volume valve 27 to a position where the separation housing 41 is removed and the volume valve 27 is removed and replaced with a new one.

After the volume valve 27 is exchanged, the first flange 44 of the housing 21 and the second flange 45 of the side housing 42 are engaged and the flange nuts 61, 62 And fixing the stud nut 34 in the down cover 23 to which the stud bolt 32 is coupled is fixed to terminate the replacement operation.

As described above, the flange type exchange unit 40 is provided with the separation housing 41 between the housing 21 and the side housing 42, and then the separation housing 41 is housed in the housing 21 and the side housing 42, The stud nut 34 of the down cover 23 is released and the third flange 35 and the fourth flange 37 are both released and then separated The volume valve 27 can be easily and quickly exchanged in a state in which the separating housing 41 is easily separated by separating the volume valve 27 from the one side of the housing 21 and removing the troublesome operation to replace the volume valve 27 And it is possible to work quickly.

The present invention provides a very useful invention that enables the replacement of the volume valve after the separation housing of the flange-type split / swap device can be easily removed after the replacement time due to the consumption of the volume valve in the small volume pro-bar.

10: Hydraulic cylinder 11: Cylinder shaft
12: Lidena 13: Connecting flange
14: inlet pipe 15: inlet connection pipe
21: housing 22: up cover
23: down cover 24: outlet pipe
27: volume valve 28: holder
29: Bracket 30: Disk
31: O-ring 32: Stud bolt
33, 34: stud bolt 35: third flange
36: Bending tube 37: Fourth flange
38: Connector 40: Flange type split exchanger
41: separating housing 42: side housing
43: thread 44: first flange
45: second flange 46, 47: separating flange
48, 48a: Screw shaft 49, 49a: Separation nut
50: first wafer 51: second wafer
52, 52a: separating wafer 60: flange fixing bolt
61, 61: Separation nut

Claims (3)

An inlet pipe 14 to which a flow meter is connected is connected to the housing 21 through an inlet connection pipe 15 and the housing 21 is provided with an upper cover 22 and a lower cover 23 on both sides of the stud bolt 32 And the cylinder head 11 connected to the volume valve 27 provided in the inner diameter of the housing 21 is connected to the outlet pipe 24. The oil pressure A valve replacing apparatus including a cylinder (10) for testing precision of a flow meter through a volume in accordance with reciprocating movement of a volume valve (27)
And cutting a part of the housing 21 into a separate housing 41 and a side housing 42 and then coupling the side housing 42 to the down cover 23,
A first flange 44 protruding from the front end of the housing 21 and a separating flange 46 protruding from the front end of the separating housing 41 are inserted into the separating nut 49 through the screw shaft 40,
A second flange 45 protruding from the front end of the side housing 42 and a separating flange 47 protruding from the front end of the separating housing 41 are coupled with a separating nut 49a through a screw shaft 48a And a flange type split exchange device (40).
The method according to claim 1,
The flange type split exchanging apparatus 40 is configured such that the seal 43 is located between the separating wafers 52 of the separating housing 41 that meet the first wafers 50 protruding from the front end of the housing 21 Including,
And a seal 43 is positioned between the second wafers 51 of the side housing 42 which is in contact with the separation wafers 52 protruding from the front end of the separation housing 41. [ Valve exchange device.
The method according to claim 1,
The flange type split exchange apparatus 40 includes a first flange 44 protruding from the front end of the housing 21 where the housing 21 and the separation housing 41 meet,
And a second flange (45) protruding from the tip of the side housing (42) which meets the separation housing (41)
Engaging flange fixing bolts (60) passing through the first and second flanges (44, 45) with flange nuts (61, 62);
Wherein a chamber (43) is located in the housing (21), the separation housing (41) and the side housing (42).

Images