KR20090023660A - Discharge pressure gauge of gas blower - Google Patents

Discharge pressure gauge of gas blower Download PDF

Info

Publication number
KR20090023660A
KR20090023660A KR1020090004915A KR20090004915A KR20090023660A KR 20090023660 A KR20090023660 A KR 20090023660A KR 1020090004915 A KR1020090004915 A KR 1020090004915A KR 20090004915 A KR20090004915 A KR 20090004915A KR 20090023660 A KR20090023660 A KR 20090023660A
Authority
KR
South Korea
Prior art keywords
pressure gauge
flange
air tank
blower
pressure
Prior art date
Application number
KR1020090004915A
Other languages
Korean (ko)
Other versions
KR101061490B1 (en
Inventor
엄태경
Original Assignee
(주)범한엔지니어링 종합건축사 사무소
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by (주)범한엔지니어링 종합건축사 사무소 filed Critical (주)범한엔지니어링 종합건축사 사무소
Priority to KR1020090004915A priority Critical patent/KR101061490B1/en
Publication of KR20090023660A publication Critical patent/KR20090023660A/en
Application granted granted Critical
Publication of KR101061490B1 publication Critical patent/KR101061490B1/en

Links

Images

Classifications

    • 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
    • G01L7/022—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 constructional details, e.g. mounting of elastically-deformable gauges
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D11/00—Component parts of measuring arrangements not specially adapted for a specific variable
    • G01D11/30—Supports specially adapted for an instrument; Supports specially adapted for a set of instruments
    • 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
    • G01L19/06—Means for preventing overload or deleterious influence of the measured medium on the measuring device or vice versa
    • 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
    • G01L19/08—Means for indicating or recording, e.g. for remote indication

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Fluid Pressure (AREA)

Abstract

An outlet pressure gauge of a blower is provided to prevent an air tank inclining by inserting a screw and fixing nut between an air tank flange and air tank supporting board flange. An outlet pressure gauge of a blower comprises a manometer(10) set up on an air tank(5) with a sealing structure; a coupling hose(4) connecting the down center of the air tank and upside end of an air tank supporting board; the air tank supporting board forming integrally a air tank supporting board flange(3-1) at a connection pipe located in a pressure tap valve(2); a vibration proof pad(6) and a spring(8) absorbing vibration between an air tank flange(5-1) and the air tank supporting board flange; and a supporting screw rod(7) and a fixing nut(11) preventing the air tank flange inclining.

Description

송풍기의 토출압력계{Discharge pressure gauge of gas blower}Discharge pressure gauge of blower

본 발명은 하수처리장, 폐수처리장,분뇨, 축산폐수처리장, 상수도 정수장 등에서 사용하는 송풍기의 토출측 압력을 정확하게 측정하기 위한 송풍기의 토출 압력계에 관한 것으로서 더욱 자세하게는 당사의 선등록 실용신안 20-0183853-0000호"펌프의 토출압력계"(2000.03.17)의 개량에 관한 것이다.The present invention relates to a discharge pressure gauge of a blower for accurately measuring the discharge side pressure of the blower used in sewage treatment plant, wastewater treatment plant, manure, livestock wastewater treatment plant, waterworks water treatment plant, etc. Arc "discharge pressure gauge of pump" (2000.03.17).

하수처리장,폐수처리장, 분뇨, 축산폐수처리장 또는 정수장에서 생물반응조나 슬러지(sludge) 저류조, 여과지등에 압축공기를 공급하는 송풍기는 매우 중요한 기계설비이다.Blowers that supply compressed air to bioreactors, sludge storage tanks, and filter papers in sewage treatment plants, wastewater treatment plants, manure, livestock wastewater treatment plants or water purification plants are very important mechanical equipment.

그러나 정수장이나,하수,폐수, 분뇨, 축산폐수처리장 등에 압축공기를 공급하는 송풍기의 토출측 압력계에는 유체적 진동과 기계적 진동에 의하여 압력계가 심한 진동을 받고 이 진동의 영향으로 압력지시 바늘이 심하게 떨면서 잦은 고장을 유발하고, 지시바늘의 진폭이 커서 정확한 압력을 측정하기가 매우 어렵다.However, the pressure gauge on the discharge side of the blower that supplies compressed air to water purification plants, sewage, wastewater, manure, and livestock wastewater treatment plants receives severe vibration due to fluid vibration and mechanical vibration, and the vibration of the needle indicates severe vibration. It causes a breakdown and the amplitude of the indicator needle is very difficult to measure the correct pressure.

송풍기의 운전기준은 통상적으로 토출측 압력을 기준으로 운전하기 때문에 압력계가 고장이 나면 송풍기의 정상운전 여부를 확인하기 어렵고, 결과적으로 비정상 운전상태에서 운전하게 되기 쉽기 때문에 , 송풍기의 효율이 저하하고, 송풍 량이 변화하는 등의 바람직하지 못한 결과를 초래한다.Normally, the operating standard of the blower is operated based on the discharge side pressure. Therefore, if the pressure gauge fails, it is difficult to check whether the blower is in normal operation. As a result, it is easy to operate in an abnormal operation state. Undesirable results such as a change in the amount.

당사의 선출원 실용신안 20-0183853-0000호"펌프의 토출압력계"(2000.03.17)은 액체를 이송하는 펌프에서 발생하는 진동의 문제점을 해결하여 정확한 압력을 측정할 수 있고 설치장소의 제한을 받지 않고, 비용이 저렴하며, 유지관리가 용이하나, 공기용 송풍기에는 사용이 불가능한 것이었다.Our Utility Model Utility Model No. 20-0183853-0000, "Discharge Manometer of Pump" (2000.03.17) solves the problem of vibration in the pump that transfers liquid, so that accurate pressure can be measured and installation location is not limited. And low cost, easy maintenance, but could not be used in the air blower.

따라서 송풍기에도, 설치장소의 제한을 받지않고, 비용이 저렴하며, 유지관리가 용이하고 진동방지와 정확한 송풍압력의 측정이 가능한 송풍기의 토출압력계가 필요하게 되었다.Therefore, the blower also requires a discharge pressure gauge of the blower without being limited by the installation location, low cost, easy maintenance, vibration prevention and accurate blow pressure measurement.

본 발명은 송풍기의 토출측에서 발생하는 압력의 급격한 변동을 소멸시키고, 기계적 진동을 감쇄하고, 설치와 유지관리가 용이한 송풍기의 토출 압력계를 제공하는 것이다.The present invention is to provide a discharge pressure gauge for a blower which eliminates sudden fluctuations in pressure occurring at the discharge side of the blower, attenuates mechanical vibration, and is easy to install and maintain.

공기통 위에 밀봉구조로 설치한 압력계(10);A pressure gauge 10 installed in a sealed structure on the air reservoir;

공기통(5)의 하부 중앙과 공기통 받침대(3)의 위쪽 끝을 연결하는 나선 스프링 모양의 연결 호스(4);A spiral spring-shaped connecting hose 4 connecting the lower center of the reservoir 5 with the upper end of the reservoir holder 3;

압력탭 밸브(2)에 설치한 연결관에 공기통 받침대 플랜지(3-1)를 일체로 형성한 공기통 받침대(3);An air cylinder base 3 in which an air cylinder base flange 3-1 is integrally formed in a connecting pipe provided in the pressure tap valve 2;

공기통받침대 플랜지와 공기통 플랜지(5-1) 사이에 설치하여 기계적 진동을 흡수,소멸시키는 방진패드(6)와 코일모양의 스프링(8); 및A vibration pad (6) and a coil-shaped spring (8) installed between the reservoir support flange and the reservoir flange (5-1) to absorb and dissipate mechanical vibration; And

공기통 플랜지(5-1)과 공기통 받침대 플랜지(3-1)사이에 삽입하여, 공기통이 기울어지는 것을 방지하는 지지 나사봉(7)과 고정너트(11)로 구성한 것을 특징으로 하는 송풍기의 토출 압력계를 제공한다.The discharge pressure gauge of the blower, comprising a support screw rod 7 and a fixing nut 11 inserted between the air cylinder flange 5-1 and the air cylinder support flange 3-1 to prevent the air cylinder from tilting. To provide.

본 발명은 송풍기의 토출측에서 발생하는 압력의 급격한 변동을 소멸시키고,기계적 진동을 감쇄시켜 압력계의 고장을 방지하고, 설치와 유지관리가 용이하고, 비용이 저렴하며, 정확한 송풍기의 토출압력 측정으로 송풍기를 항상 최고효율의 운전점에서 운전하게 하여, 송풍기의 효율을 높이고 동력을 절감하는 효과가 있다.The present invention eliminates sudden fluctuations in pressure generated at the discharge side of the blower, attenuates mechanical vibration to prevent breakdown of the pressure gauge, and is easy to install and maintain, inexpensive, and accurately measures the discharge pressure of the blower. By always operating at the highest efficiency driving point, there is an effect of increasing the efficiency of the blower and saving power.

본 발명을 첨부한 도면을 참조하여 상세히 설명하면 다음과 같다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

송풍기(가)의 토출구에 신축관(나)를 설치하여 송풍기의 진동이 토출구 쪽의 토출배관(다)에 전달되는 것을 경감시킨다.The expansion pipe (b) is installed in the discharge port of the blower (a) to reduce the vibration of the blower from being transmitted to the discharge pipe (c) on the discharge port side.

송풍기의 토출구 쪽의 배관에는 역지밸브(다)와 압력조절밸브(라)를 설치하여, 공기의 역류를 방지하고, 송풍기의 운전압력을 정확하게 조절한다.A check valve (C) and a pressure control valve (D) are provided in the piping on the discharge port side of the blower to prevent backflow of air and to accurately adjust the operating pressure of the blower.

토출구 쪽의 토출배관(마)에는 압력 탭(1)을 수직방향 또는 수평방향으로 관통되게 설치하고, 압력탭에 차단 밸브(2)를 설치하고 이 밸브에 연결하여, 공기통 받침대 (3)의 관 모양의 연결부를 삽입한 다음 나사를 조여서 고정되도록 설치하고, 관 모양 연결부의 위쪽 끝은 탄성이 좋은 호스로 된 재료로 만든 나선스프링 모양의 연결호스(4)의 아래쪽 끝과 연결하고, 공기통 받침대 플랜지(3-1)는 수평을 유지하도록 공기통 받침대(3)과 일체가 되로록 설치하고, 공기통 받침대 플랜지(3-1)의 위에 방진 패드(6)를 올려놓고 방진패드의 위에 코일 모양의 스프링(8)을 놓은 다음에, 연결호스(5)의 위쪽 끝을 공기통의 하부 중앙부분에 연결하고, 공기통 플랜지(5-1)를 스프링(8)의 위에 올려놓아 설치한다.In the discharge pipe (e) on the discharge port side, the pressure tap 1 is installed to penetrate in the vertical direction or the horizontal direction, and a shutoff valve 2 is installed on the pressure tap and connected to the valve to connect the pipe of the air cylinder support 3. Insert the connector and install it by tightening the screw. The upper end of the tubular connection is connected to the lower end of the spiral spring-shaped connection hose (4) made of a material of elastic hose, and the flange of the reservoir bracket (3-1) is installed so as to be integral with the air cylinder holder 3 so as to be horizontal, the vibration pad 6 is placed on the air cylinder bracket flange 3-1, and a coil-shaped spring ( 8) After installing, connect the upper end of the connecting hose (5) to the lower center part of the reservoir and install the reservoir flange (5-1) on the spring (8).

지지 나사봉(7)은 공기통 받침대 플랜지(3-1)과 공기통 플랜지(5-1)사이에 삽입하여 설치하여서, 공기통이 옆으로 기울어지는 것을 방지한다.The support screw rod 7 is inserted between the air reservoir bracket flange 3-1 and the air cylinder flange 5-1 to be installed to prevent the air cylinder from tilting sideways.

공기통(5)의 상부 중앙에는 압력계 연결구(9)를 설치하고, 여기에 압력계(10)를 연결하여 설치한다.A pressure gauge connector 9 is installed at the upper center of the air cylinder 5, and a pressure gauge 10 is connected thereto.

압력계는 불돈 관 압력계, 격막식 압력계, 전송식 압력계 등 모든형식의 압력계를 사용할 수 있다.The pressure gauge can be any type of pressure gauge such as a tube pressure gauge, a diaphragm pressure gauge, or a transmission pressure gauge.

공기통의 내부지름을 D, 연결호스(4)의 내부 지름을 d라고 하면, 그 면적비는 (d/D)2 이 되며, 송풍기 토출압력의 급속한 변화폭에 대하여, 공기통내의 압력변화폭은 최소한 (d/D)2 이상으로 감소한다.If the inner diameter of the reservoir is D and the inner diameter of the connecting hose 4 is d, the area ratio is (d / D) 2 , and the pressure change in the cylinder is at least (d / d) with respect to the rapid change in the blower discharge pressure. D) decreases to 2 or more.

그리고 이 감소비율은 공기통의 길이가 길면 더 증가하므로, 공기통의 지름을 연결호스 지름의 10배로 하면, 공기통 내의 압력변화폭은 송풍기 토출측 압력변화값의 1/100 이하가 되며 압력변화 값이 통상적으로 1kg/㎠ 이하인 것을 감안하면 이런 경우 공기통 내의 압력변화 값은 그 1/100인 0.01kg/㎠이하가 되어 매우 작으므로, 공기통에 설치된 압력계의 지시바늘의 진동이 거의 없고, 압력지시 값이 매우 안정되고, 정확하다.And this decrease ratio increases further when the length of the reservoir is longer, so if the diameter of the reservoir is 10 times the diameter of the connecting hose, the pressure change range in the reservoir becomes less than 1/100 of the pressure change value of the blower discharge side, and the pressure change value is usually 1 kg. Considering that it is less than / cm 2, in this case, the pressure change value in the air cylinder is less than 0.01 / 100 kg / cm 2, which is 1/100 of the air pressure. , Accurate.

한편 송풍기의 회전과 유체적 진동에 의한 기계적인 진동은 송풍기 토출측에 설치한 신축관(나)에 의하여 1차적으로 제거되지만, 기계적인 진동의 제거가 충분치 못하여 토출배관(마)에는 상당한 진동이 전달된다.On the other hand, mechanical vibration due to the rotation of the blower and fluid vibration is primarily removed by the expansion pipe (b) installed at the discharge side of the blower, but due to insufficient removal of mechanical vibration, considerable vibration is transmitted to the discharge pipe (e). do.

이 진동은 압력탭(1)을 통하여 공기통 받침대(3)에 전달되지만, 탄성이 좋은 나선 스프링 모양의 연결호스(4)에서 감쇄되고, 방진패드(6)와 코일 모양의 스프링(8)에 의하여 감쇄되므로, 공기통(5)에는 기계적 진동이 거의 전달되지 않고, 따라서 이 공기통의 상부에 설치한 압력계(10)에는 기계적 진동이 전달되지 않으므로 압력계는 기계적 진동의 영향을 받지 않아서 안전하다.This vibration is transmitted to the air cylinder support 3 through the pressure tap 1, but is attenuated by the elastic spiral spring-shaped connecting hose 4, and is provided by the vibration-proof pad 6 and the coil-shaped spring 8 Since attenuation, almost no mechanical vibration is transmitted to the air cylinder 5, and therefore, no mechanical vibration is transmitted to the pressure gauge 10 installed on the upper portion of the air cylinder, and thus the pressure gauge is safe from mechanical vibration.

상기와 같이 압력계는 공기의 유체적 진동과 기계적 진동 모두에 대하여 안전한 것을 알 수 있다.As described above, it can be seen that the pressure gauge is safe against both the fluid vibration and the mechanical vibration of the air.

도1은 수평 토출배관에 본 발명을 실시 한 경우이고, 도2는 수직배관에 본 발명을 실시 한 예이며 수직배관에 실시한 예에서는 공기통 내에서 발생할 수도 있는 응축수를 배출하기 위한 응축수 배수밸브를 공기통 받침대(3)의 하부에 설치하였다.Figure 1 is a case where the present invention is implemented in a horizontal discharge pipe, Figure 2 is an example of the present invention is implemented in a vertical pipe and in the example carried out in a vertical pipe in the air condensate drain valve for discharging condensate that may occur in the air reservoir It was installed in the lower part of the pedestal 3.

본 발명의 다른 실시 예는 다음과 같다.(도3참조)Another embodiment of the present invention is as follows.

토출 배관(마)에 관통되도록 압력탭(1)을 설치하고, 차단 밸브를 설치하고 이 차단 밸브(2)에 압력계 받침대(3a)를 연결하여 설치한다.A pressure tap 1 is provided to penetrate the discharge pipe (e), a shutoff valve is installed, and a pressure gauge pedestal 3a is connected to the shutoff valve 2 so as to be installed.

압력계 받침대(3a)의 입구부에는 작은 구멍을 가진 오리피스를 설치한다.An orifice having a small hole is provided at the inlet of the pressure gauge pedestal 3a.

또한 압력계는 연결호스(4)에 바로 연결하여 설치하고, 압력계의 하부에는 압력계 후랜지(10-1)을 설치한다.In addition, the pressure gauge is installed directly connected to the connecting hose (4), the pressure gauge flange 10-1 is installed in the lower part of the pressure gauge.

기타 구성은 상기에서 이미 설명한 본 발명의 실시 예와 같다.Other configurations are the same as the embodiments of the present invention already described above.

연결호스(4)의 내부 지름을 D, 오리피스의 지름을 d라고 하면, 연결호스와 오리피스의 면적비는 (d/D)2 이 된다.When the inner diameter of the connecting hose 4 is D and the diameter of the orifice is d, the area ratio of the connecting hose and the orifice is (d / D) 2 .

하나의 실시 예로서, 연결호스 내부지름이 15mm이고, 오리피스 지름이 1.5mm라면 면적비는 1/100이 되고, 송풍기 토출측의 압력변화 값에 대하여, 압력계의 압력변화 값은 1/100 이 되어 매우 작아진다.As an example, if the inner diameter of the connection hose is 15 mm and the orifice diameter is 1.5 mm, the area ratio is 1/100, and the pressure change value of the pressure gauge is 1/100 with respect to the pressure change value at the discharge side of the blower, which is very small. Lose.

본 실시 예에서도 압력계는 유체적 진동이나 기계적 진동에 대하여 매우 안전하므로, 압력 측정값이 정확하고, 진동도 없으므로 고장도 방지된다.Even in this embodiment, the pressure gauge is very safe against the fluid vibration and the mechanical vibration, so that the pressure measurement value is accurate and there is no vibration, thereby preventing failure.

도 1 은 본 발명의 압력계를 수평배관에 설치한 상태를 나타낸 구성도.1 is a configuration diagram showing a state in which the pressure gauge of the present invention is installed in a horizontal pipe.

도 2 는 본 발명의 압력계를 수직배관에 설치한 상태를 나타낸 구성도.2 is a configuration diagram showing a state in which the pressure gauge of the present invention is installed in a vertical pipe.

도 3 은 본 발명이 압력계의 다른 실시 예를 나타내는 구성도.3 is a configuration diagram showing another embodiment of the pressure gauge of the present invention.

Claims (2)

공기통 위에 밀봉구조로 설치한 압력계(10);A pressure gauge 10 installed in a sealed structure on the air reservoir; 공기통(5)의 하부 중앙과 공기통 받침대(3)의 위쪽 끝을 연결하는 나선 스프링 모양의 연결 호스(4);A spiral spring-shaped connecting hose 4 connecting the lower center of the reservoir 5 with the upper end of the reservoir holder 3; 압력탭 밸브(2)에 설치한 연결관에 공기통 받침대 플랜지(3-1)를 일체로 형성한 공기통 받침대(3);An air cylinder base 3 in which an air cylinder base flange 3-1 is integrally formed in a connecting pipe provided in the pressure tap valve 2; 공기통받침대 플랜지와 공기통 플랜지(5-1) 사이에 설치하여 기계적 진동을 흡수,소멸시키는 방진패드(6)와 코일모양의 스프링(8); 및A vibration pad (6) and a coil-shaped spring (8) installed between the reservoir support flange and the reservoir flange (5-1) to absorb and dissipate mechanical vibration; And 공기통 플랜지(5-1)과 공기통 받침대 플랜지(3-1)사이에 삽입하여, 공기통이 기울어지는 것을 방지하는 지지 나사봉(7)과 고정너트(11)로 구성한 것을 특징으로 하는 송풍기의 토출 압력계.The discharge pressure gauge of the blower, comprising a support screw rod 7 and a fixing nut 11 inserted between the air cylinder flange 5-1 and the air cylinder support flange 3-1 to prevent the air cylinder from tilting. . 압력계 플랜지와 하부에 연결부를 구비한 압력계;A pressure gauge having a pressure gauge flange and a connection at the bottom thereof; 압력계의 연결부와 압력계 받침대를 연결하는 나선 스프링 모양의 연결 호스;A spiral spring-shaped connecting hose connecting the pressure gauge footing with the pressure gauge footing; 토출배관에 설치한 압력탭;A pressure tap installed on the discharge pipe; 압력탭 밸브에 설치한 압력계 받침대; 및A pressure gauge pedestal mounted on the pressure tap valve; And 압력계 받침대 플랜지와 압력계 플랜지 사이에 설치하여 기계적 진동을 흡수,소멸시키는 방진패드와 스프링을 포함하는 것을 특징으로 하는 송풍기의 토출 압력계.Discharge pressure gauge of the blower comprising a vibration pad and a spring installed between the pressure gauge bracket flange and the pressure gauge flange to absorb and dissipate mechanical vibration.
KR1020090004915A 2009-01-21 2009-01-21 Blower pressure gauge of blower KR101061490B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020090004915A KR101061490B1 (en) 2009-01-21 2009-01-21 Blower pressure gauge of blower

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020090004915A KR101061490B1 (en) 2009-01-21 2009-01-21 Blower pressure gauge of blower

Publications (2)

Publication Number Publication Date
KR20090023660A true KR20090023660A (en) 2009-03-05
KR101061490B1 KR101061490B1 (en) 2011-09-02

Family

ID=40692920

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020090004915A KR101061490B1 (en) 2009-01-21 2009-01-21 Blower pressure gauge of blower

Country Status (1)

Country Link
KR (1) KR101061490B1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108801545A (en) * 2018-08-01 2018-11-13 国家电网有限公司 Pressure gauge antivibration mount
CN113188710A (en) * 2021-04-15 2021-07-30 浙江大学 Waterproof and breathable mechanical device for wireless wind pressure monitoring equipment

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200227141Y1 (en) 1996-11-05 2001-11-22 이구택 Pressure gauge with vibration absorbing means
KR200183853Y1 (en) 1999-12-27 2000-06-01 주식회사범한엔지니어링 Discharge pressure gauge of pumps

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108801545A (en) * 2018-08-01 2018-11-13 国家电网有限公司 Pressure gauge antivibration mount
CN113188710A (en) * 2021-04-15 2021-07-30 浙江大学 Waterproof and breathable mechanical device for wireless wind pressure monitoring equipment

Also Published As

Publication number Publication date
KR101061490B1 (en) 2011-09-02

Similar Documents

Publication Publication Date Title
US8633825B2 (en) Expansion tank with a predictive sensor
US8529228B1 (en) Sump pump cover
KR20090023660A (en) Discharge pressure gauge of gas blower
CN107076344B (en) Bag surge suppressor
CN210713032U (en) Non-negative pressure water supply unit
KR20090019344A (en) Pumping apparatus installed in water supply pipeline
KR101111525B1 (en) Discharge pressure gauge of pump
CN214500499U (en) Pressure pipeline plugging device
CN214579685U (en) Novel warm logical pipe connection device
CN211172200U (en) Non-negative pressure water supply equipment
CN204881965U (en) Pressure transmitter's installation device among sewage treatment
CN208604689U (en) A kind of non-negative pressure method of water supply device with energy storage vacuum compensation function
US6592342B1 (en) Water supply system
KR200183853Y1 (en) Discharge pressure gauge of pumps
CN104235616A (en) Positive-negative pressure protector
CN211080403U (en) Atmospheric pressure tank capable of feeding back water level
KR100832437B1 (en) Pressure compensating accumulator level indicator having enhanced operation of float and pressure control chamber
CN207763246U (en) A kind of normal-pressure boiler
WO2021114270A1 (en) Dosing device for sewage treatment
CN214221591U (en) MVR vapor compressor is with sealed automatic water supply device
CN213116737U (en) Submersible sewage pump
CN207032461U (en) A kind of prefabricated pumping plant
CN204099912U (en) Positive/negative pressure protector
CN212866175U (en) Mute complete water supply equipment
CN215060373U (en) Non-metal expansion joint structure

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
FPAY Annual fee payment

Payment date: 20140702

Year of fee payment: 4

FPAY Annual fee payment

Payment date: 20150720

Year of fee payment: 5

FPAY Annual fee payment

Payment date: 20160706

Year of fee payment: 6

FPAY Annual fee payment

Payment date: 20170704

Year of fee payment: 7