CN-121994322-A - Heat distribution type flow sensor mounting bracket

Abstract

The invention discloses a heat distribution type flow sensor mounting bracket which is a mounting plate, wherein a sensor mounting cavity and a gas circulation channel are arranged on the mounting plate, the sensor mounting cavity is communicated with the gas circulation channel through a notch, a measuring component of a sensor stretches into the gas circulation channel from the notch, the gas circulation channel is provided with an air inlet hole and an air outlet hole which are respectively communicated with a main flow channel, and a sealing plate is detachably fixed with the mounting plate and used for sealing the mounting plate to enable the sensor mounting cavity and the gas circulation channel to form a closed space isolated from the external environment. According to the invention, the split sealing plate and the mounting plate are arranged, so that the gas circulation channel can not only ensure the use requirement of sealing, but also release the sealing state to meet the cleaning requirement, and the cleaning is easy and quick, and the blocking position can be intuitively embodied.

Inventors

• ZHANG BO

Assignees

• 四川莱峰流体设备制造有限公司

Dates

Publication Date

20260508

Application Date

20260317

Claims (8)

1. 1. A thermally distributed flow sensor mounting bracket, comprising: the sensor comprises a mounting plate, a sensor mounting cavity, a sensor and a sensor, wherein the mounting plate is provided with a sensor mounting cavity and a gas circulation channel, the sensor mounting cavity is communicated with the gas circulation channel through a notch, and a measuring assembly of the sensor extends into the gas circulation channel from the notch; The sealing plate is detachably fixed with the mounting plate and is used for sealing the mounting plate to enable the sensor mounting cavity and the gas circulation channel to form a closed space isolated from the external environment.
2. 2. The thermally distributed flow sensor mounting bracket of claim 1 wherein the gas flow channel is a groove structure.
3. 3. The thermally distributed flow sensor mounting bracket of claim 2 wherein the gas flow passage has a width that tapers from the inlet aperture to the outlet aperture.
4. 4. The thermally distributed flow sensor mounting bracket of claim 1 wherein the mounting plate is provided with a sealing ring groove, the sensor mounting cavity and the gas flow passage are disposed in the sealing ring groove, and a sealing ring is disposed in the sealing ring groove.
5. 5. The thermally distributed flow sensor mounting bracket of claim 3 wherein the gas flow passage is U-shaped and the notch communicates with a long section of the gas flow passage.
6. 6. The thermally distributed flow sensor mounting bracket of claim 1 wherein a side of the sensor mounting cavity remote from the notch is provided with a ramp.
7. 7. The thermally distributed flow sensor mounting bracket of claim 1 wherein the mounting plate has at least two mounting holes and the sealing plate has threaded holes coaxial with the mounting holes, the sealing plate being connected to the mounting plate by the mounting holes, the threaded holes and bolts.
8. 8. The mounting bracket of the heat distribution type flow sensor according to claim 1, wherein the periphery of the sensor mounting cavity extends upwards to protrude to form an annular sealing wall with the surface of the mounting plate, the notch is arranged on the sealing wall, and the sealing plate is correspondingly provided with a positioning sealing groove matched with the sealing.

Description

Heat distribution type flow sensor mounting bracket Technical Field The invention relates to the technical field of gas mass flow measurement and control, in particular to a heat distribution type flow sensor mounting bracket. Background A meter that measures the volumetric or mass flow of a fluid may be generally referred to as a flow meter. The flow meter mainly comprises a flow dividing device, a flow sensor, an inlet, an outlet and the like, and the working principle is that fluid enters the flow dividing device from an inlet of a main flow path, is divided by the flow dividing device, one part enters the flow sensor, the other part directly descends (if the flow meter is provided with a regulating valve, the divided fluid flows through the regulating valve after being converged at the rear end of the flow divider), and then flows out through the outlet. In the prior art, a heat distribution type flow sensor is mostly adopted, and the heat distribution type flow sensor in the prior art (such as the patent with publication number of CN 119512243A) is directly installed with a capillary tube, and the heat distribution type flow sensor relies on the capillary tube to measure the split fluid. Disclosure of Invention The invention aims to overcome the defects of the prior art and provides a heat distribution type flow sensor mounting bracket. The aim of the invention is realized by the following technical scheme: A thermally distributed flow sensor mounting bracket comprising: the sensor comprises a mounting plate, a sensor mounting cavity, a sensor and a sensor, wherein the mounting plate is provided with a sensor mounting cavity and a gas circulation channel, the sensor mounting cavity is communicated with the gas circulation channel through a notch, and a measuring assembly of the sensor extends into the gas circulation channel from the notch; The sealing plate is detachably fixed with the mounting plate and is used for sealing the mounting plate to enable the sensor mounting cavity and the gas circulation channel to form a closed space isolated from the external environment. Further, the gas circulation channel is of a groove structure. Further, the width of the gas circulation channel gradually narrows from the gas inlet hole to the gas outlet hole. Further, a sealing ring groove is formed in the mounting plate, the sensor mounting cavity and the gas circulation channel are arranged in the sealing ring groove, and a sealing ring is arranged in the sealing ring groove. Further, the gas circulation channel is U-shaped, and the notch is communicated with the long section of the gas circulation channel. Further, one side of the sensor installation cavity far away from the notch is provided with a slope. Further, the mounting plate is provided with at least two fixing holes, the sealing plate is provided with threaded holes coaxial with the fixing holes, and the sealing plate is connected with the mounting plate through the fixing holes, the threaded holes and the bolts. Further, the periphery of the sensor mounting cavity extends upwards to protrude to form an annular sealing wall with the surface of the mounting plate, a notch is formed in the sealing wall, and a positioning sealing groove matched with the sealing is correspondingly formed in the sealing plate. The beneficial effects of the invention are as follows: 1) According to the invention, the split sealing plate and the mounting plate are arranged, so that the gas circulation channel can not only ensure the use requirement of sealing, but also release the sealing state to meet the cleaning requirement, and the cleaning is easy and quick, and the blocking position can be intuitively embodied. 2) The wide and narrow design of the gas fluid channel is beneficial to generating uniform and stable gas flow, and the accuracy of the measurement result of the sensor can be improved. Drawings FIG. 1 is a perspective view of a thermally distributed flow sensor mounting bracket in accordance with an embodiment of the present invention; FIG. 2 is a perspective view of the mounting plate; FIG. 3 is a state diagram of the use of a thermally distributed flow sensor mounting bracket; in the figure, 1, a mounting plate, 2, a sensor mounting cavity, 3, a gas circulation channel, 4, a notch, 5, an air inlet hole, 6, an air outlet hole, 7, a sealing plate, 8, a sealing ring groove, 9, a slope, 10, a fixing hole, 11, a threaded hole, 12, a main flow path, 13 and a sealing wall. Detailed Description The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments, and it is apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by a person skilled in the art without any inventive effort, are intended to be within the scope of the present invention, based on the embodiments of the present invention. Example