KR20180067314A - Diaphragm assembly and pressure tranmitter system comprising the same - Google Patents

Diaphragm assembly and pressure tranmitter system comprising the same Download PDF

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Publication number
KR20180067314A
KR20180067314A KR1020160168904A KR20160168904A KR20180067314A KR 20180067314 A KR20180067314 A KR 20180067314A KR 1020160168904 A KR1020160168904 A KR 1020160168904A KR 20160168904 A KR20160168904 A KR 20160168904A KR 20180067314 A KR20180067314 A KR 20180067314A
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KR
South Korea
Prior art keywords
pressure
housing
diaphragm
fluid
conduit
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KR1020160168904A
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Korean (ko)
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KR101968324B1 (en
Inventor
김태준
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주식회사 미래엔지니어링
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Priority to KR1020160168904A priority Critical patent/KR101968324B1/en
Priority to PCT/KR2017/013593 priority patent/WO2018110859A2/en
Publication of KR20180067314A publication Critical patent/KR20180067314A/en
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Publication of KR101968324B1 publication Critical patent/KR101968324B1/en

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
    • G01L19/14—Housings
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L23/00—Devices or apparatus for measuring or indicating or recording rapid changes, such as oscillations, in the pressure of steam, gas, or liquid; Indicators for determining work or energy of steam, internal-combustion, or other fluid-pressure engines from the condition of the working fluid
    • G01L23/26—Details or accessories
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L7/00—Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements
    • G01L7/02—Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements in the form of elastically-deformable gauges
    • G01L7/08—Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements in the form of elastically-deformable gauges of the flexible-diaphragm type
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L7/00—Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements
    • G01L7/02—Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements in the form of elastically-deformable gauges
    • G01L7/08—Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements in the form of elastically-deformable gauges of the flexible-diaphragm type
    • G01L7/082—Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements in the form of elastically-deformable gauges of the flexible-diaphragm type construction or mounting of diaphragms

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Measuring Fluid Pressure (AREA)

Abstract

The pressure transmitter system includes a housing having an internal space, a fluid outlet formed through the side surface of the housing, a diaphragm provided on the bottom surface to detect fluid pressure acting on a bottom surface of the internal space, one side connected to the diaphragm, Side includes a pressure conduit passing through the outer surface of the housing and a pressure transmitter connected to the other side of the pressure conduit to measure the pressure of the fluid.

Description

≪ Desc / Clms Page number 1 > DIAPHRAGM ASSEMBLY AND PRESSURE TRANMITTER SYSTEM COMPRISING THE SAME.

The following embodiments relate to a diaphragm assembly for measuring the pressure of a hot fluid flowing through a vessel or piping and a transmitter system including the same.

High temperature fluid is flowing in equipment such as vessels and pipes used in processes requiring high temperature. In this process, it is necessary to grasp the state of fluid pressure, level, and flow rate.

In order to attach a commercial product for room temperature to a device in which a high-temperature fluid flows, many attaching facilities are required, and there are many problems that the device space becomes narrow due to the attached equipment.

That is, in order to measure the pressure of the equipment for measuring the pressure, an accessory facility such as a pipe for separately extracting the fluid is necessary so that the pressure measuring device can be connected. Such an accessory facility occupies a lot of space, If there is no space, there are many difficulties in measuring the pressure.

In this regard, registration number 10-1040332 discloses a pressure gauge that can be used at high temperatures through a diaphragm.

One object of the present invention is to provide a diaphragm assembly capable of measuring pressure without a separate measuring facility by connecting the pressure measurement object to the housing and placing the diaphragm to detect the pressure of fluid acting on the bottom surface of the housing .

An object of the present invention is to provide a diaphragm assembly and a pressure transmitter system in which fluid pressure is applied to the entire diaphragm by positioning the diaphragm on the bottom surface of the housing, thereby enabling more accurate pressure measurement.

An object of the present invention is to provide a diaphragm assembly and a transmitter system which can accurately measure a pressure regardless of the size of the diaphragm because the diaphragm is located on the bottom surface of the housing,

The diaphragm assembly according to one embodiment includes a housing having an inner space; A fluid inlet formed through the side surface of the housing; And a diaphragm provided on a bottom surface of the housing to detect a pressure acting on a bottom surface of the inner space.

On one side, the bottom surface of the housing may be inclined with respect to the fluid outlet.

In one side, the bottom surface may be inclined upward from the fluid inlet port toward the inside of the housing.

In one side, the bottom surface of the housing may be formed in a shape symmetrical with respect to the side surface.

On one side, the inclination of the bottom surface may be adjustable.

In one aspect, the diaphragm assembly may further include a pressure conduit connected to the diaphragm through the housing and transmitting pressure detected by the diaphragm.

On one side, the diaphragm assembly further includes an outer conduit connected to a side of the housing, the pressure conduit extending from an outer surface of the housing, and at least a portion being received in the outer conduit.

And a heat dissipation unit provided at one side of the housing and accommodating at least a part of the pressure conduit.

The fluid inlet / outlet pipe may further include a fluid inlet / outlet pipe connected to one side of the fluid inlet / outlet port and the other end of the fluid outlet / outlet pipe connected to the pressure measurement target.

A pressure transmitter system according to one embodiment includes a housing having an internal space; A fluid inlet formed through the side surface of the housing; A diaphragm provided on the bottom surface to detect a fluid pressure acting on a bottom surface of the inner space; A pressure conduit having one side connected to the diaphragm and the other side passing through the outer surface of the housing; And a pressure transmitter connected to the other side of the pressure conduit to measure the pressure of the fluid.

A pressure transmitter system according to an embodiment includes: a pressure transmitter for measuring pressure of fluid; A first pressure conduit having one side connected to the pressure transmitter; A first diaphragm assembly having a first diaphragm connected to the other side of the first pressure conduit; A second pressure conduit having one side connected to the first diaphragm assembly; And a second diaphragm assembly having a second diaphragm connected to the other side of the second pressure conduit and connected to a pressure measurement object, wherein the second diaphragm is positioned on a bottom surface of the second diaphragm assembly, 2 diaphragm assembly can detect the pressure acting on the bottom surface.

On one side, the first pressure conduit may contain an organic heating medium, and the second pressure conduit may contain a sodium-potassium (Na-K) alloy.

According to the embodiment, it is possible to measure the pressure even when there is no space for installing a separate measuring equipment on the pressure measuring object.

According to one embodiment, since the diaphragm is disposed on the bottom surface of the housing, the error of the fluid pressure due to the remaining gas layer can be minimized.

According to one embodiment, by positioning the diaphragm on the bottom surface of the housing, accurate pressure measurement is possible regardless of the size of the diaphragm used.

According to one embodiment, a slope is formed in the housing to facilitate the discharge of the fluid, thereby preventing the fluid from remaining in the housing after the pressure measurement is completed.

The effects of the present invention are not limited to those mentioned above, and other effects not mentioned can be clearly understood to those of ordinary skill in the art from the following description.

BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate preferred embodiments of the invention and, together with the description, serve to further the understanding of the technical idea of the invention, It should not be construed as limited.
1 is a perspective view showing a diaphragm assembly according to an embodiment.
2 is a side sectional view showing a cross section of a diaphragm assembly according to an embodiment.
3 is an upper cross-sectional view of an upper section of a diaphragm assembly according to an embodiment.
Figure 4 is a schematic diagram showing a transmitter system connected to an external pressure means.
5 is a schematic diagram illustrating a transmitter system having a first diaphragm assembly and a second diaphragm assembly;

Hereinafter, embodiments will be described in detail with reference to exemplary drawings. It should be noted that, in adding reference numerals to the constituent elements of the drawings, the same constituent elements are denoted by the same reference symbols as possible even if they are shown in different drawings. In the following description of the embodiments, detailed description of known functions and configurations incorporated herein will be omitted when it may make the best of an understanding clear.

In describing the components of the embodiment, terms such as first, second, A, B, (a), and (b) may be used. These terms are intended to distinguish the constituent elements from other constituent elements, and the terms do not limit the nature, order or order of the constituent elements. When a component is described as being "connected", "coupled", or "connected" to another component, the component may be directly connected or connected to the other component, Quot; may be "connected," "coupled," or "connected. &Quot;

Hereinafter, a diaphragm assembly 10 according to an embodiment and a pressure transmitter system 1 including the same will be described with reference to the accompanying drawings. The pressure measuring object 500 represented in the present invention may be a high-temperature fluid including a molten metal, for example, a storage container for storing a flowable material including a liquid and a gas, a piping system for flowing a high- it means.

Figure 1 is a perspective view of a diaphragm assembly according to an embodiment, Figure 2 is a side cross-sectional view of a diaphragm assembly according to an embodiment, and Figure 3 is a top view of a diaphragm assembly according to an embodiment.

1 to 3, the diaphragm assembly 10 includes a housing 100 provided with an internal space, a fluid inlet 110 formed to penetrate a side surface of the housing, and an inner surface of the housing 100, A pressure conduit 130 connected to the diaphragm, and an external conduit 140 connected to the side of the housing.

The housing 100 may include an interior space for receiving fluid. The housing 100 may include a material having high heat resistance. Therefore, it is possible to prevent the housing 100 from being damaged when the housing 100 is used in a high-temperature environment or when a high-temperature fluid is accommodated in the housing 100.

The housing 100 may have various shapes depending on the kind of fluid contained therein or the object 500 to be connected to the pressure measurement. For example, the housing 100 may have a cylindrical shape as shown in the drawing, and may have a hexahedral shape, a prismatic shape, or the like.

The fluid inlet 110 penetrates the inner and outer surfaces of the housing 100, thereby allowing the fluid to flow into the inner space of the housing 100. For example, the fluid inlet 110 may be formed on the side of the housing 100. The shape and size of the fluid inlet 110 may vary depending on the pressure measurement object 500. For example, the fluid inlet 110 may have a shape and size corresponding to the pipe connecting the pressure measurement object 500 and the housing 100.

A fluid inlet / outlet pipe (111) may be connected to the fluid inlet / outlet (110). The fluid outlet pipe (111) can be detachably connected to the fluid outlet (110). For example, the fluid inlet 110 may be formed with a step, and the fluid outlet pipe 111 may be inserted into the fluid inlet 110 and the position may be fixed through the step.

The fluid inlet / outlet pipe 111 connects the fluid inlet / outlet 110 and the pressure measurement object 500, so that the fluid flowing through the pressure measurement object 500 can flow into the interior of the housing 100. The fluid inlet / outlet pipe 111 may be a pipe, but is not limited thereto. The fluid outlet pipe 111 may vary in size, cross-sectional shape, and length depending on the measuring equipment provided in the pressure measuring object 500.

The bottom surface of the inside of the housing 100 may be inclined. For example, the bottom surface of the housing 100 may be inclined upward from the fluid inlet 110 toward the inside of the housing 100. In this case, the bottom surfaces of the housing 100 may be symmetrical with respect to each other. That is, the inner space of the housing may have a shape symmetrical about the inner side surface of the housing 100.

According to this structure, the liquid level of the fluid introduced into the housing 100 can be lowered from the fluid inlet 110 toward the inside of the housing. Therefore, the fluid contained in the housing 100 can be easily discharged, and the solution can be prevented from remaining in the housing 100 even after the pressure detection is completed.

The inclination of the inner bottom surface of the housing 100 can be adjusted. For example, the side surface and the upper and lower portions of the housing 100 can be assembled to each other, and the inclination of the inner bottom surface of the housing 100 with respect to the side surface can be adjusted by adjusting the upper and lower assembling angles with respect to the side surface . On the other hand, the angle of the bottom surface of the housing 100 with respect to the side surface of the housing 100 may be adjusted through a motor or a screw, or the bottom surface of the housing 100 having another inclination may be replaced.

The inclination of the bottom surface of the housing 100 with respect to the side surface can be determined according to various factors. For example, when the viscosity of the fluid to be introduced into the housing 100 is large, it is possible to induce smooth fluid discharge by making the slope of the slope. On the other hand, when the viscosity of the fluid is low, So that the fluid remains sufficiently inside the housing 100 while the pressure sensor 120 detects the pressure.

The diaphragm 120 is provided in the inner space of the housing 100 to detect the pressure inside the housing 100. In other words, the diaphragm 120 can detect the pressure of the fluid flowing through the pressure measuring object 500 connected to the housing 100. The diaphragm 120 can detect the pressure of the fluid flowing through the pressure measurement object 500 in a direction different from the flow direction of the fluid.

Therefore, the pressure of the fluid flowing into the housing 100 can be indirectly measured without complicated measurement equipment to be connected to the pressure measurement object 500, so that the pressure of the fluid can be detected. That is, the diaphragm assembly 10 can directly detect the pressure by connecting the diaphragm assembly 10 to the pressure measurement object 500 without providing a pipe for connecting the diaphragm 120 to the pressure measurement object 500 Therefore, no space is required for installing the piping.

The diaphragm 120 is provided on the inner bottom surface of the housing 100, so that an error of pressure measurement by the gas layer inside the housing 100 can be reduced. Specifically, when a high-temperature fluid flows into the housing, a gas layer positioned on the upper portion of the fluid may be formed in the interior space of the housing. In this case, if the diaphragm 120 is provided on the inner bottom surface of the housing 100, the pressure of the fluid can act on the diaphragm 120 by preventing the gas layer from applying pressure to the valve membrane of the diaphragm 120. As a result, since the diaphragm 120 is provided on the inner bottom surface of the housing 100, it is possible to prevent an error from occurring with the actual pressure of the fluid flowing through the pressure measurement object 500.

Although the diaphragm 120 is shown on the inner bottom surface of the housing 100, the diaphragm 120 may be provided on the inner surface of the housing 100. That is, the bottom surface of the housing means the surface excluding the side surface of the space inside the housing.

The diaphragm 120 may have various sizes depending on the size and shape of the housing 100. In this case, the diaphragm 120 in the diaphragm assembly 10 is installed to measure the pressure acting on the underside of the housing 100, so that only fluid pressure can act on the entire diaphragm 120 valve plate. Therefore, even when the size of the diaphragm 120 becomes large, only the pressure of the fluid acts on the diaphragm 120, so that accurate pressure measurement is possible. In other words, since the fluid does not need to fill the inside of the housing 100 for accurate pressure detection, even if a large-sized diaphragm 120 is used, the same effect as using the small-sized diaphragm 120 can be obtained.

The diaphragm 120 may have a thin pleated plate. However, however, the shape of the diaphragm 120 is not limited thereto, and various known diaphragms may be practically used.

The pressure conduit 130 may be connected to the diaphragm 120 through the housing 100. For example, the pressure conduit 130 may communicate from the interior of the housing 100 to the exterior. The pressure conduit 130 can deliver the pressure of the fluid detected by the diaphragm 120 to the pressure measuring means. The pressure conduit 130 may extend from the outer surface of the housing 100, e.g., the bottom surface. In particular, the pressure conduit 130 may extend outside the housing, at least a portion of which may be inserted into the outer conduit 140 to be connected to other equipment. For example, pressure conduit 130 may be connected to a pressure transmitter or other diaphragm assembly to deliver pressure sensed by diaphragm 120.

The size of the pressure conduit 130 may vary. For example, the pressure conduit 130 can have various sizes, from 1/16 in. Capillary diameter tubing size to 1/2 in. Tube tubing size. The pressure conduit 130 may contain a sodium-potassium (Na-K) alloy that is liquid at ambient temperature. In this case, when the sodium-potassium (Na-K) alloy rises at a high temperature of 700 ° C or higher, metal vapor is generated, so that the pressure conduit 130 may be provided with cooling means.

The outer conduit 140 may be connected to the outer surface of the housing 100. The external conduit 140 may include a first connection portion 141 connected to the housing and a second connection portion 142 connected to the first connection portion 141.

The first connection portion 141 may be connected to an outer surface of the housing 100, for example, a side surface of the housing 100. A pressure conduit 130 extending from the bottom of the housing 100 may be inserted into the first connection portion 141 to receive at least a portion of the pressure conduit 130 therein. The first connection part 141 may include a plurality of holes for discharging heat generated in the pressure conduit according to a high temperature.

The second connection portion 142 may be connected to the first connection portion 141 at one side and the pressure transmitter or other diaphragm assembly or the like at the other side. In this case, the second connection portion 142 may receive the pressure conduit 130 inserted through the first connection portion 141 and protect the pressure conduit 130 from being connected to another device. As a result, the outer conduit 140 can prevent injury to the user or damage to the pressure conduit by the hot pressure conduit 130.

The diaphragm assembly 10 may further include a heat dissipation unit 150 disposed outside the housing 100.

The heat dissipation unit 150 may be provided on the bottom surface of the housing 100 to receive the pressure conduit 130 extending to the bottom surface of the housing 100. A plurality of holes may be formed on the outer surface of the heat dissipating unit 150. Accordingly, the heat dissipation unit 150 can dissipate heat generated by the high-temperature fluid inside the housing 100 to the outside. Also, it is possible to prevent an accident that occurs when the pressure conduit 130 is at a high temperature, or a problem that the pressure conduit 130 collides with the outside.

Hereinafter, the pressure transmitter system 1 according to the embodiment will be described. In describing the pressure transmitter system 1, the description overlapping with the above description is omitted.

4 is a schematic view of a pressure transmitter system 1 in which a pressure transmitter 160 is connected to the diaphragm assembly 10. FIG.

The pressure transmitter system 1 may include a diaphragm assembly 10 and a pressure transmitter 160. The diaphragm assembly 10 may include a housing 100, a fluid inlet 110, a diaphragm 120, a pressure conduit 130, an external conduit 140, and a heat dissipation unit 150.

The diaphragm assembly 10 is connected to the pressure measurement object 500 via the fluid inlet 110 and the fluid flowing through the pressure measurement object 500 can be received in the housing 100. The diaphragm 120 may detect the pressure of the fluid acting inside the housing 100 and transmit it to the pressure transmitter 160 through the pressure conduit 130.

The pressure transmitter 160 is connected to the pressure conduit 130 to measure the fluid pressure acting inside the housing 100 as detected by the diaphragm 120. The pressure transmitter 160 may include a pressure gauge and may convert the pressure of the fluid flowing through the pressure measurement object 500 into a numerical value through a pressure gauge.

As a result, in measuring the pressure of the fluid flowing through the pressure measuring object 500, the pressure transmitter system 1 causes the fluid to flow into the housing 100, and the pressure acting on the inside of the housing 100 indirectly . With this structure, the pressure transmitter system 1 can directly attach the diaphragm 120 to the pressure measurement object 500 without measuring the pressure by attaching the diaphragm 120 to the pressure measurement object 500 And the pressure of the fluid can be detected by the diaphragm 120 provided inside the housing 100.

That is, even if a pipe for connecting the diaphragm 120 to the pressure measurement object 500 is not provided, the pressure transmitter system 1 can be directly connected to the pressure measurement object 500 to detect the pressure, It does not require space.

Further, since the diaphragm 120 detects the fluid pressure through the pressure acting on the bottom surface of the housing 100, the gas layer generated inside the housing prevents the diaphragm 120 from applying pressure to the diaphragm 120, The error of the pressure measurement can be minimized. Since the inner bottom surface of the housing 100 is formed to be inclined, the pressure transmitter system 1 can easily discharge the fluid after the pressure detection is completed, thereby preventing the fluid in the housing 100 from remaining.

Hereinafter, a pressure transmitter system 2 according to another embodiment will be described.

5 is a schematic diagram of a pressure transmitter system 2 comprising a plurality of diaphragm assemblies.

5, the pressure transmitter system 2 includes a pressure transmitter 250 for measuring pressure, a first pressure conduit 240 to which the pressure transmitter 250 is connected at one side, a second pressure conduit 240 to the other side of the first pressure conduit 240, A first diaphragm assembly 230 including a first diaphragm 231 and a first diaphragm 231 connected to the first diaphragm assembly 230 and a second pressure conduit 220 connected to the first diaphragm assembly 230 at one side, And a second diaphragm assembly 210 including a second diaphragm 211 and a second diaphragm 211 connected to the other side of the conduit 220 and connected to the pressure measurement object 500.

In this case, the first diaphragm 231 and the second diaphragm 211 may have a thin corrugated plate shape. However, the present invention is not limited thereto, and the first diaphragm 231 and the second diaphragm 211 may be variously modified including metal and non-metal materials.

One side of the first pressure conduit 240 may be connected to the pressure transmitter 250 and the other side may be connected to the first diaphragm 231. The first pressure conduit 240 may be an organic heating medium capable of withstanding a temperature of 300 ° C. For example, the organic heating medium may be Dow Corning 702, 704, 705 or the like.

And, the first pressure conduit 240 can be used from a capillary diameter tube size of 1/16 in. To a tube tube tube size of 1/2 in. Also, the first pressure conduit 240 can be kept warm since an error in the pressure measurement due to the influence of the ambient air temperature may occur.

The first diaphragm assembly 230 having the first diaphragm 231 connected to the first pressure conduit 240 may be connected to one side of the second pressure conduit 220. The other side of the second pressure conduit 220 may be connected to the second diaphragm 211.

The second pressure conduit 220 may be a sodium-potassium (Na-K) alloy that is liquid at room temperature. In this case, since the sodium-potassium (Na-K) alloy can be vaporized above 700 ° C, the second pressure conduit 220 can be provided with cooling means. However, the pressure transmitter system 2 does not necessarily have a cooling means.

The second diaphragm assembly 210 having the second diaphragm 211 may be connected to the pressure measurement object 500. In this case, the fluid flowing through the pressure measurement object 500 may flow into the second diaphragm assembly 210 through the fluid inlet / outlet formed on the side surface of the second diaphragm assembly 210, The second diaphragm 211 located on the bottom surface can detect the pressure acting on the bottom surface of the inflowing fluid.

That is, instead of measuring the pressure by attaching the second diaphragm 211 to a measuring instrument provided separately in the pressure measuring object 500, the second diaphragm assembly 210 may be directly connected to the pressure measuring object 500, Since the pressure of the fluid is detected by the second diaphragm 211 provided in the diaphragm assembly 210, it is not necessary to provide a separate measuring instrument in the pressure measuring object 500

In addition, since the second diaphragm 211 is provided to detect the pressure acting on the bottom surface of the second diaphragm assembly 210, even if a gas layer is generated in the second diaphragm assembly 210, .

In other words, it is possible to prevent the gas layer from applying pressure to a part of the valve membrane of the second diaphragm 211, thereby reducing the error with the actual pressure of the pressure measurement object 500.

In addition, the second diaphragm 211 having various sizes can be used regardless of the size and shape of the second diaphragm assembly 211. [

In this case, the second diaphragm 211 is positioned to measure the pressure acting on the bottom surface of the second diaphragm assembly 210, so that the fluid introduced into the second diaphragm assembly 210 is supplied to the entire surface of the second diaphragm 211 Can be contacted. Therefore, regardless of the size, the pressure of the fluid can act on the entire second diaphragm 211.

That is, since the fluid introduced from the pressure measurement object 500 does not need to fill the inside of the second diaphragm assembly 210 for accurate pressure detection, the second diaphragm assembly 210 can have the same effect regardless of the size of the second diaphragm 211 .

Since the pressure can be detected by directly connecting the pressure transmitter system 2 to the pressure measurement object 500 even if a pipe for connecting the diaphragm to the pressure measurement object 500 is not provided, Even if there is no pressure, it is possible to measure the pressure.

In addition, the inside of the second diaphragm assembly 210 is formed to be inclined so that fluid can be easily discharged. Specifically, as the fluid enters the second diaphragm assembly 210, the height of the flow cross-section of the fluid can be reduced. With this inclination, when pressure detection is completed, fluid can be prevented from remaining in the second diaphragm assembly 210, and more accurate pressure measurement is possible.

The inner inclination can be adjusted differently depending on the viscosity of the fluid flowing into the second diaphragm assembly 210. For example, when the viscosity of the fluid is large, the angle of the inclination is formed rapidly to facilitate the discharge of the fluid. When the viscosity of the fluid is small, the angle is formed gently so that the diaphragm 211 The discharge speed can be lowered to sufficiently detect it.

According to the above-described embodiments, the fluid is introduced into the diaphragm assembly 10, and the pressure of the pressure measurement object 500 is detected through the diaphragm 120 installed in a direction different from the flow direction of the fluid, It is possible to measure pressure without measuring equipment or equipment. This pressure measurement has an advantage that pressure measurement is possible even if there is no space for installing the measuring instrument on the pressure measuring object 500. [

Further, since the diaphragm 120 is positioned in a horizontal or inclined form, the fluid pressure acts on the entire diaphragm 120 regardless of the gas layer inside the housing 100, so that more accurate pressure measurement is possible.

The diaphragm 120 can be used in various sizes by detecting the fluid pressure regardless of the fluid level flowing into the housing 100 of the diaphragm 120.

Although the preferred embodiments of the present invention have been disclosed for illustrative purposes, those skilled in the art will appreciate that various modifications, additions and substitutions are possible, without departing from the scope and spirit of the invention as disclosed in the accompanying claims. For example, it is contemplated that the techniques described may be performed in a different order than the described methods, and / or that components of the described structures, devices, and the like may be combined or combined in other ways than the described methods, Appropriate results can be achieved even if they are replaced or replaced.

Therefore, other implementations, other embodiments and equivalents to the claims are within the scope of the following claims.

10: Diaphragm assembly
100: Housing
110: fluid inlet
120: Diaphragm
130: Pressure conduit
150: Pressure transmitter
500: Pressure measurement object

Claims (12)

A housing having an internal space;
A fluid inlet formed through the side surface of the housing; And
And a diaphragm disposed on a bottom surface of the housing to detect a pressure acting on a bottom surface of the inner space.
The method according to claim 1,
Wherein a bottom surface of the housing is formed obliquely with respect to the fluid entrance.
3. The method of claim 2,
Wherein the bottom surface is formed with an upward inclination from the fluid inlet to the inside of the housing.
The method of claim 3,
Wherein the bottom surface of the housing is shaped to be symmetrical with respect to the side surface.
3. The method of claim 2,
Wherein the inclination of the bottom surface is adjustable.
The method according to claim 1,
And a pressure conduit communicating with the diaphragm through the housing and communicating pressure sensed by the diaphragm.
The method according to claim 6,
Further comprising an outer conduit connected to a side of the housing,
The pressure conduit extending from an outer surface of the housing and at least a portion being received in the outer conduit.
The method according to claim 6,
And a heat dissipating portion provided outside the housing, the dissipating portion receiving at least a portion of the pressure conduit.
The method according to claim 1,
Further comprising a fluid inlet and outlet tube having one side connected to the fluid outlet and the other side connected to a pressure measurement object.
A housing having an internal space;
A fluid inlet formed through the side surface of the housing;
A diaphragm provided on the bottom surface to detect a fluid pressure acting on a bottom surface of the inner space;
A pressure conduit having one side connected to the diaphragm and the other side passing through the outer surface of the housing;
And a pressure transmitter coupled to the other side of the pressure conduit to measure the pressure of the fluid.
A pressure transmitter for measuring the pressure of the fluid;
A first pressure conduit having one side connected to the pressure transmitter;
A first diaphragm assembly having a first diaphragm connected to the other side of the first pressure conduit;
A second pressure conduit having one side connected to the first diaphragm assembly;
And a second diaphragm connected to the other side of the second pressure conduit, the second diaphragm assembly being connected to the pressure measurement object,
The second diaphragm may include:
And a pressure sensor disposed on a bottom surface of the second diaphragm assembly to detect a pressure acting on the bottom surface of the fluid flowing through the side surface of the second diaphragm assembly.
12. The method of claim 11,
Wherein the first pressure conduit comprises an organic heating medium,
Wherein the second pressure conduit comprises a sodium-potassium (Na-K) alloy.
KR1020160168904A 2016-12-12 2016-12-12 Diaphragm assembly and pressure tranmitter system comprising the same KR101968324B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
KR1020160168904A KR101968324B1 (en) 2016-12-12 2016-12-12 Diaphragm assembly and pressure tranmitter system comprising the same
PCT/KR2017/013593 WO2018110859A2 (en) 2016-12-12 2017-11-27 Diaphragm assembly and pressure transmitter system including same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020160168904A KR101968324B1 (en) 2016-12-12 2016-12-12 Diaphragm assembly and pressure tranmitter system comprising the same

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KR20180067314A true KR20180067314A (en) 2018-06-20
KR101968324B1 KR101968324B1 (en) 2019-04-12

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WO (1) WO2018110859A2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20210027830A (en) * 2019-09-03 2021-03-11 주식회사 경동나비엔 Adapter and pressure sensor assembly including the same

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