Heat insulation type diaphragm-seal pressure gauge
A technology of diaphragm pressure gauge and diaphragm, which is applied in the field of electronics and can solve problems such as measurement errors
Inactive Publication Date: 2018-06-19
ANHUI LANRUN AUTOMATION INSTR
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Problems solved by technology
[0002] In the actual work of the diaphragm pressure gauge, the extension of the diaphragm will not only be affected by the pressure, but also be affected by the temperature of the measured medium. Therefore, there will be a certain measurement error in the existing
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[0012] Below, the technical solution of the present invention will be described in detail through specific examples.
[0013] Such as figure 1 as shown, figure 1 It is a structural schematic diagram of a heat-insulated diaphragm pressure gauge proposed by the present invention.
[0014] refer to figure 1 , a heat-insulated diaphragm pressure gauge proposed in an embodiment of the present invention, comprising: a gauge head 1, a gauge base 2 connected to the gauge head 1, and a measuring rod 3 connected to the gauge base 2, wherein:
[0015] A spring tube 4 is provided inside the meter head 1, and one end of the spring tube 4 extends into the inside of the watch base 2; a cavity connected with the spring tube 4 is provided inside the watch base 2, and a diaphragm 5 is arranged inside the cavity, and the diaphragm The sheet 5 is connected to the side wall of the cavity to form a liquid storage chamber for encapsulating the sealing liquid on the side of the diaphragm sheet 5 c...
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The invention discloses a heat insulation type diaphragm-seal pressure gauge. The diaphragm-seal pressure gauge comprises a gauge head, a gauge base connected with the gauge head, and a measuring rodconnected with the gauge base, a bourdon tube is arranged in the gauge head, one end of the bourdon tube extends into the gauge base, a cavity communicating with the bourdon tube is arranged in the gauge base, a diaphragm is arranged in the cavity, the diaphragm is connected with sidewalls of the cavity to form a liquid storage chamber used for packaging sealing liquid at one side, close to the bourdon tube, of the diaphragm, a guide chamber for allowing entrance of a to-be-detected medium is formed at one side, far from the bourdon tube, of the diaphragm, a drainage chamber communicating withthe guide chamber is arranged in the measuring rod, the measuring rod is made of a heat-insulating material, and a connection surface of connection of the measuring rod and the gauge base is providedwith a thermal insulation layer. According to the heat insulation type diaphragm-seal pressure gauge, the measuring rod is made of the heat-insulating material, and the thermal insulation layer is arranged between the measuring rod and the gauge base so that the heat in the detected medium is prevented from being transferred to the direction of the gauge base by employing heat insulation of the measuring rod and heat insulation of the thermal insulation layer, the influence of the temperature on the diaphragm is reduced, and the measuring precision is improved.
Description
technical field [0001] The invention relates to the field of electronic technology, in particular to a heat-insulated diaphragm pressure gauge. Background technique [0002] In the actual work of the diaphragm pressure gauge, the stretching of the diaphragm will not only be affected by the pressure, but also be stretched by the temperature of the measured medium. Therefore, there will be certain measurement errors in the existing ones. Needs to be improved. Contents of the invention [0003] Based on the technical problems in the above-mentioned background technology, the present invention proposes a heat-insulated diaphragm pressure gauge to reduce or eliminate the influence of temperature on the diaphragm and improve measurement accuracy. [0004] The present invention proposes a heat-insulated diaphragm pressure gauge, comprising: a gauge head, a gauge base connected to the gauge head, and a measuring rod connected to the gauge base, wherein: [0005] There is a sprin...
Claims
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Patent Timeline
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Inventor 陈万林庄连美植宏春
Owner ANHUI LANRUN AUTOMATION INSTR