CN111307226A - An automobile differential pressure sensor seat - Google Patents

Abstract

The invention relates to an automobile differential pressure sensor seat which is connected with a differential pressure sensor, wherein the differential pressure sensor seat comprises an air inlet pipeline, an air outlet pipeline, an air inlet pressure air inlet, an air outlet pressure air inlet and a pressure regulating hole, the pressure regulating hole is arranged between the air inlet pipeline and the air outlet pipeline, one end of the air inlet pressure air inlet is connected with the air inlet pipeline, the other end of the air inlet pressure air inlet is connected with the differential pressure sensor, one end of the air outlet pressure air inlet is connected with the air outlet pipeline, and the other end of the air outlet pressure air inlet is connected with the differential pressure sensor. Compared with the prior art, the invention has the advantages of wide application, high efficiency, low cost and the like.

Description

An automobile differential pressure sensor seat

technical field

The invention relates to a vehicle sensor, in particular to a vehicle differential pressure sensor seat.

Background technique

At present, venturi flowmeters and orifice flowmeters are widely used in the market. Orifice flowmeters and Venturi flowmeters Venturi tubes consist of a circular measuring tube and a special measuring tube that is placed in the measuring tube and coaxial with the measuring tube. It is composed of a core body, and the manufacturing cost is high. Due to the complicated influence of many factors, the accuracy is difficult to improve. The repeatability and accuracy of the measurement are generally at the level of the flowmeter. The field installation conditions are relatively high, and a long straight pipe section is required. Generally difficult to meet, the pressure loss is relatively large.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide an automobile differential pressure sensor seat in order to overcome the above-mentioned defects of the prior art.

The object of the present invention can be realized through the following technical solutions:

An automobile differential pressure sensor seat, the differential pressure sensor seat is connected with the differential pressure sensor, and the differential pressure sensor seat comprises an air inlet pipe, an air outlet pipe, an air intake pressure inlet, an air outlet pressure inlet and a pressure regulating hole, so the The pressure regulating hole is installed between the air inlet pipe and the air outlet pipe, one end of the air inlet pressure inlet is connected with the air inlet pipe, the other end is connected with the differential pressure sensor, and one end of the air outlet pressure inlet is connected with the air outlet pipe. Connect the other end to the differential pressure sensor.

Preferably, the pressure regulating hole, the air inlet pipe and the air outlet pipe are arranged concentrically.

Preferably, the pressure regulating hole is a pressure regulating hole with an adjustable diameter.

Preferably, the inlet pressure air intake port and the air outlet pressure air intake port are symmetrically arranged at the center of the pressure regulating hole.

Preferably, the intake pressure intake port and the intake direction of the intake pipe are arranged at a first angle.

Preferably, the outlet pressure inlet and the outlet direction of the outlet pipe are arranged at a second angle.

Preferably, the first included angle and the second included angle are equal.

Preferably, the first included angle and the second included angle are both obtuse angles.

Preferably, the differential pressure sensor base further includes a base body for placing the intake pipe, the exhaust pipe, the intake pressure intake port, the exhaust pressure intake port and the pressure regulating hole.

Preferably, the base body is provided with bolt connection holes for installation.

Compared with the prior art, the present invention has the following advantages:

1. Wide application: The present invention is suitable for all flowing gas pipelines, without real flow calibration, and the calibration is comprehensive.

2. High efficiency: stable and reliable performance, high precision and long service life.

3. Low cost: overall structure design, simple structure and low price.

Description of drawings

FIG. 1 is a schematic structural diagram of the present invention.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

As shown in Figure 1, an automobile differential pressure sensor seat is connected with the differential pressure sensor. The pressure air intake port 2 and the pressure regulating hole 5 are installed between the air intake pipe 4 and the air outlet pipe 6. One end of the air intake pressure air intake port 3 is connected with the air intake pipe 4, and the other end is connected with the air intake pipe 4. The differential pressure sensor is connected, one end of the outlet pressure air intake 2 is connected with the gas outlet pipeline 6, and the other end is connected with the differential pressure sensor.

The pressure regulating hole 5, the air inlet pipe 4 and the air outlet pipe 6 are arranged concentrically. The pressure regulating hole 5 is a pressure regulating hole with an adjustable diameter. The inlet pressure inlet 3 and the outlet pressure inlet 2 are symmetrically arranged at the center of the pressure regulating hole 5 .

The intake pressure intake port 3 and the intake direction of the intake pipe 4 are arranged at a first angle. The outlet pressure air inlet 2 and the outlet direction of the outlet pipe 6 are arranged at a second angle. The first included angle and the second included angle are equal. The first included angle and the second included angle are both obtuse angles.

The differential pressure sensor seat also includes a base body for placing an air inlet pipe 4 , an air outlet pipe 6 , an air inlet pressure inlet 3 , an outlet pressure air inlet 2 and a pressure regulating hole 5 . The base body is provided with a bolt connection hole 1 for installation.

The above-mentioned differential pressure sensor seat is a flowmeter that measures the differential pressure value before and after the intake air. The overall design is that the differential pressure value between the front and rear is realized through the pressure regulating hole in the middle of the flow sensor seat. The size of the pressure regulating hole and the angle of the air intake port depend on the front and rear pressure differential The range of the front and rear differential pressure values is highly controllable, and the measurement accuracy is accurate and controllable.

The size of the above-mentioned air inlet pipe and air outlet pipe is adjusted according to the size of the entire pipe, and pipes of different sizes can be configured, and the diameter of the inlet air inlet is equal to the diameter of the air inlet outlet. The ratio between the diameter of the intake inlet and the diameter of the pressure regulating hole directly affects the relationship between the front and rear pressure differences.

The working principle of the present invention:

The differential pressure sensor seat of the present invention is equipped with a throttling device on the pipeline where the medium flows. There is a circular hole in the center of the differential pressure sensor seat, the diameter of which is smaller than the inner diameter of the pipeline. When the orifice plate becomes smaller, the cross-sectional area shrinks, the stable flow state is disrupted, the flow velocity increases, and a static pressure difference is generated on the upstream and downstream sides of the orifice. The size of the differential pressure and the flow of the medium have a definite numerical relationship. Adjust the diameter of the small hole and the angle of the air intake to match different sensors, that is, when the flow rate is large, the differential pressure is large, and the flow rate is small, the differential pressure is small.

The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited to this. Any person skilled in the art can easily think of various equivalents within the technical scope disclosed by the present invention. Modifications or substitutions should be included within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims (10)

1. An automobile differential pressure sensor seat, the differential pressure sensor seat is connected with the differential pressure sensor, and it is characterized in that, the differential pressure sensor seat comprises an air intake pipe (4), an air outlet pipe (6), an intake pressure sensor. The air port (3), the air outlet pressure air intake port (2) and the pressure regulating hole (5), the pressure regulating hole (5) is installed between the air inlet pipe (4) and the air outlet pipe (6). One end of the air pressure intake port (3) is connected with the intake pipe (4), and the other end is connected with the differential pressure sensor. connect. 2 . An automobile differential pressure sensor seat according to claim 1 , wherein the pressure regulating hole ( 5 ), the air inlet pipe ( 4 ) and the air outlet pipe ( 6 ) are arranged concentrically. 3 . 3 . The automobile differential pressure sensor seat according to claim 1 , wherein the pressure regulating hole ( 5 ) is a pressure regulating hole with an adjustable diameter. 4 . 4. A kind of automobile differential pressure sensor seat according to claim 1, is characterized in that, described intake pressure air intake (3) and outlet pressure air intake (2) are arranged symmetrically at the center of pressure regulating hole (5) . 5 . The automobile differential pressure sensor seat according to claim 1 , wherein the intake pressure intake port ( 3 ) and the intake direction of the intake pipe ( 4 ) are arranged at a first angle. 6 . 6 . The automobile differential pressure sensor seat according to claim 5 , wherein the outlet pressure inlet ( 2 ) and the outlet direction of the outlet pipe ( 6 ) are arranged at a second angle. 7 . 7 . The automobile differential pressure sensor seat according to claim 6 , wherein the first included angle and the second included angle are equal. 8 . 8 . The vehicle differential pressure sensor seat according to claim 7 , wherein the first included angle and the second included angle are both obtuse angles. 9 . 9. An automobile differential pressure sensor seat according to claim 1, characterized in that, the differential pressure sensor seat further comprises an air intake pipe (4), an air outlet pipe (6), an intake pressure measurement The base body of the air port (3), the air outlet pressure air intake port (2) and the pressure regulating hole (5). 10 . The vehicle differential pressure sensor seat according to claim 9 , wherein the base body is provided with bolt connection holes ( 1 ) for installation. 11 .

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