CN218646369U - PQT sensor - Google Patents
PQT sensor Download PDFInfo
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- CN218646369U CN218646369U CN202223303147.7U CN202223303147U CN218646369U CN 218646369 U CN218646369 U CN 218646369U CN 202223303147 U CN202223303147 U CN 202223303147U CN 218646369 U CN218646369 U CN 218646369U
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Abstract
The utility model belongs to the technical field of sensors, and provides a PQT sensor, which comprises a metal main body straight pipe, connecting section parts positioned at two ends of the metal main body straight pipe, a turbine and a medium channel arranged in the metal main body straight pipe, and a pressure sensor, a non-contact flow sensor and a temperature sensor which are sequentially and fixedly arranged on the metal main body straight pipe, wherein the non-contact flow sensor is used for detecting the rotating speed of the turbine; the pressure sensor and the temperature sensor are packaged through a metal straight pipe, threads are arranged at the bottom of the pressure sensor and fixedly installed on the metal main body straight pipe through the threads, a packaging sleeve is sleeved outside the non-contact flow sensor, packaging connecting rods are arranged at two ends of the packaging sleeve, and the packaging connecting rods are connected with the upper ends of the pressure sensor and the temperature sensor. The utility model discloses encapsulate the sensor structure of integral type, be applicable to the application scene that needs carry out the multi-parameter test to the fluidics, realize that one-time installation multi-parameter detects.
Description
Technical Field
The utility model belongs to the technical field of the sensor, specific theory relates to a PQT sensor.
Background
The flow sensor has wide application in industrial production, can perform accurate induction detection on the flow velocity of fluid, and feeds the induction detection result back to the control center for flow regulation and control, so that the flow velocity of the fluid is effectively controlled, and the production efficiency is effectively improved. In a medium flow detection sensor for water or similar water, a differential pressure type flow sensor, a V-cone type flow sensor and the like are mostly adopted for detection, and the sensor is mainly difficult to be packaged with other sensors (such as a temperature sensor and a pressure sensor) into an integral structure, so that one-time installation multi-parameter detection is realized; on the other hand, only downstream (i.e. in line with the direction of flow of the medium) detection is possible, and if the medium flows backwards in the transport duct, this cannot be detected effectively.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a PQT sensor to solve the technical problem that prior art exists.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a PQT sensor comprises a metal main body straight pipe, connecting section parts positioned at two ends of the metal main body straight pipe, a turbine and a medium channel which are arranged in the metal main body straight pipe, and a pressure sensor, a non-contact flow sensor and a temperature sensor which are sequentially and fixedly arranged on the metal main body straight pipe, wherein the non-contact flow sensor is used for detecting the rotating speed of the turbine; the pressure sensor and the temperature sensor are packaged through a metal straight pipe, threads are arranged at the bottom of the pressure sensor and the bottom of the temperature sensor and fixedly installed on the metal main body straight pipe through the threads, a packaging sleeve is sleeved outside the non-contact flow sensor, packaging connecting rods are arranged at two ends of the packaging sleeve, and the packaging connecting rods are connected with the upper ends of the pressure sensor and the temperature sensor.
And further, the device also comprises covers arranged at the end parts of the pressure sensor, the non-contact flow sensor and the temperature sensor, and colors and numbers for distinguishing the types of the sensors are arranged on the covers.
Further, the turbine comprises a turbine fixing shaft fixed in the metal main body straight pipe, and a turbine blade assembly arranged at the right end part of the turbine fixing shaft; wherein, the cross-section of the turbine blade subassembly is round platform shape.
Further, the medium channel comprises a first medium channel portion located at the left end of the turbine, a second medium channel portion located between the turbine fixing shaft and the metal main body straight pipe, a third medium channel portion located between the turbine blade assembly and the metal main body straight pipe, and a fourth medium channel portion located at the right end of the turbine.
Further, the metal main body straight pipe is made of stainless steel materials.
Compared with the prior art, the utility model discloses possess following beneficial effect:
(1) The utility model discloses a pressure sensor, flow sensor and temperature sensor trinity combine metal main part straight tube to encapsulate the sensor structure of integral type, are applicable to the application scene that needs carry out the multi-parameter test to the fluid, realize that one-time installation multi-parameter detects.
(2) The utility model discloses well flow sensor adopts non-contact sensor, and it combines together with the turbine in the main part, and flow sensor is used for detecting the rotation of turbine to change the rotational speed of turbine into pulse signal, realize the measuring to the flow from this.
(3) The utility model discloses on the structure basis that sets up of turbine, combine flow sensor to detect the detection principle of turbine speed, set up medium channel portion, can realize the measuring environment to medium following current and adverse current, be applicable to and have the applied scene against the current.
Drawings
Fig. 1 is a first schematic structural diagram of the present invention.
Fig. 2 is a second schematic structural diagram of the present invention.
Wherein, the names corresponding to the reference numbers are as follows: 1-a metal main body straight pipe, 2-a connecting section part, 3-a turbine, 4-a pressure sensor, 5-a packaging sleeve, 6-a temperature sensor, 7-a packaging connecting rod, 8-a first medium channel part, 9-a second medium channel part, 10-a third medium channel part, 11-a fourth medium channel part and 12-a cover; 31-turbine stationary shaft, 32-turbine blade assembly.
Detailed Description
In order to make the present invention more clear to those skilled in the art, the present invention will be further described in detail with reference to the following embodiments. It should be understood that the following specific embodiments are only for explaining the present invention, and it is convenient to understand that the technical solutions provided by the present invention are not limited to the technical solutions provided by the following embodiments, and the technical solutions provided by the embodiments should not limit the protection scope of the present invention.
Examples
As shown in fig. 1 to 2, the present embodiment provides a PQT sensor, in which three sensors, namely, a temperature sensor, a flow sensor, and a pressure sensor, are packaged and integrated into a single integrated sensor, so that the single integrated sensor is suitable for application scenarios requiring multi-parameter testing of a fluid, and can implement one-time installation multi-parameter detection.
In this embodiment, the PQT sensor includes a metal body straight tube, connection section portions located at both ends of the metal body straight tube, a turbine and a medium channel disposed in the metal body straight tube, and a pressure sensor, a non-contact flow sensor, and a temperature sensor that are sequentially and fixedly disposed on the metal body straight tube; among them, the non-contact flow sensor is used for detecting the rotational speed of the turbine, for example: the non-contact type rotating speed sensor has the following detection principle: when the impeller rotates, a pulse is generated, the liquid flows to push the turbine to rotate, the flow of a medium in the pipeline is in direct proportion to the rotating speed of the turbine, the rotating speed of the turbine is converted into a pulse signal by the sensor, and therefore the flow of the medium is detected.
The packaging structure of the PQT sensor is as follows: pressure sensor and temperature sensor pass through the encapsulation of metal straight tube, its bottom has the screw thread and through screw thread fixed mounting on the metal main part straight tube, non-contact flow sensor overcoat has connect the encapsulation cover, the encapsulation cover both ends are provided with the encapsulation connecting rod, the encapsulation connecting rod is connected with pressure sensor and temperature sensor's upper end, the material of encapsulation cover and encapsulation connecting rod does not do and does not prescribe separately, preferred metal material, the effect of the two is the relative physical connection of reinforcing between three sensor (temperature, pressure and flow sensor), avoid the sensor to be damaged by accident because of the atress of left right side direction.
In a further preferred scheme, the sensor further comprises a cover arranged at the end part of the pressure sensor, the non-contact flow sensor and the temperature sensor, and the cover is provided with colors and numbers for distinguishing the sensor types, such as: lid on the temperature sensor sets up to red, serial number for 1, and the last lid of flow sensor is provided with blue, and the serial number is 2, and the last lid of pressure sensor sets up to yellow, and the serial number is 3, and the lid and the effect of the setting of the color on it and serial number lie in the convenience and distinguish each type of sensor to ensure that correct sensor connects.
The metal main body straight pipe is preferably made of stainless steel, internal threads are arranged at the connecting section parts on the two sides of the metal main body straight pipe and are used for connecting a medium conveying pipeline, medium flows into the metal main body straight pipe, and a turbine in the metal main body straight pipe is pushed to rotate.
In the embodiment, the turbine material is made of stainless steel, and comprises a turbine fixing shaft fixed in the metal main body straight pipe and a turbine blade assembly arranged at the right end part of the turbine fixing shaft, preferably, the section of the turbine blade assembly is in a circular truncated cone shape; the turbine fixing shaft is fixed, the turbine blade assembly can rotate relative to the turbine fixing shaft, and the connecting portion is arranged on the inner wall of the metal main body straight pipe in a protruding mode and used for installing the turbine fixing shaft. The medium channel is formed in a straight pipe of the metal main body part and used for medium flowing, the non-contact flow sensor generates a pulse signal through detecting the rotation of the impeller to realize the design principle of flow detection, the medium channel in the embodiment adopts a design structure capable of realizing countercurrent, and specifically, the medium channel part comprises four sections: the turbine blade assembly comprises a first medium channel portion, a second medium channel portion, a third medium channel portion and a fourth medium channel portion, wherein the first medium channel portion is located at the left end of the turbine, the second medium channel portion is located between the turbine fixing shaft and the metal main body straight pipe, the third medium channel portion is located between the turbine blade assembly and the metal main body straight pipe, and the fourth medium channel portion is located at the right end of the turbine. When the medium downstream is detected, the medium flows through the medium channels in the following sequence: the medium sequentially passes through the first medium channel part, the second medium channel part, the third medium channel part and the fourth medium channel part, the turbine blade assembly is pushed to rotate at the third medium channel part, and the non-contact flow sensor detects the rotating speed of the impeller; when the medium is detected in a reverse flow mode, the medium passes through the medium channels in the following sequence: the medium passes through the fourth medium channel part, the third medium channel part, the second medium channel part and the first medium channel part in sequence, the turbine blade assembly is pushed to rotate at the third medium channel part, and the non-contact flow sensor detects the rotating speed of the impeller.
The performance parameters of the PQT sensor provided in the present example were tested as shown in the following table:
the environmental condition test results of the PQT sensor provided in the present example are shown in the following table:
the PQT sensor provided by the embodiment has the advantages of high reliability, full digital processing, strong anti-interference capability, reliable measurement, high precision and the like, the output can be directly used for PLC, the PQT sensor is suitable for measuring pure mediums similar to water and oils with the viscosity similar to water, and the PQT sensor can be applied to liquid distribution systems, circulating water measurement, filtration systems, chemical production and pump protection and is suitable for oils with the viscosity close to water or water.
The above is the preferred embodiment of the present invention. It should be noted that, those skilled in the art can make several modifications without departing from the design principle and technical solution of the present invention, and these modifications should also be regarded as the protection scope of the present invention.
Claims (5)
1. A PQT sensor is characterized by comprising a metal main body straight pipe (1), connecting section parts (2) positioned at two ends of the metal main body straight pipe (1), a turbine (3) and a medium channel which are arranged in the metal main body straight pipe (1), and a pressure sensor (4), a non-contact flow sensor and a temperature sensor (6) which are sequentially and fixedly arranged on the metal main body straight pipe (1), wherein the non-contact flow sensor is used for detecting the rotating speed of the turbine (3); pressure sensor (4) and temperature sensor (6) pass through the encapsulation of metal straight tube, and its bottom has the screw thread and installs through screw thread fixed mounting on metal main part straight tube (1), non-contact flow sensor cup joints encapsulation cover (5), encapsulation cover (5) both ends are provided with encapsulation connecting rod (7), encapsulation connecting rod (7) with the upper end of pressure sensor (4) and temperature sensor (6) is connected.
2. The PQT sensor of claim 1, further comprising a cover (12) provided at the end of the pressure sensor (4), the non-contact flow sensor, and the temperature sensor (6), the cover (12) being provided with a color and a number for distinguishing the sensor type.
3. The PQT sensor according to claim 2, wherein the turbine wheel (3) includes a turbine wheel fixing shaft (31) fixed within the metal body straight tube (1), and a turbine blade assembly (32) provided at the right end portion of the turbine wheel fixing shaft (31); wherein the cross section of the turbine blade assembly (32) is in a circular truncated cone shape.
4. The PQT sensor according to claim 3, wherein the medium passage includes a first medium passage portion (8) located at the left end of the turbine wheel (3), a second medium passage portion (9) located between the turbine wheel fixing shaft (31) and the metal body straight tube (1), a third medium passage portion (10) located between the turbine blade assembly (32) and the metal body straight tube (1), and a fourth medium passage portion (11) located at the right end of the turbine wheel (3).
5. The PQT sensor according to any of claims 1 to 4, wherein the metal body straight tube (1) is made of a stainless steel material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223303147.7U CN218646369U (en) | 2022-12-06 | 2022-12-06 | PQT sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223303147.7U CN218646369U (en) | 2022-12-06 | 2022-12-06 | PQT sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218646369U true CN218646369U (en) | 2023-03-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223303147.7U Active CN218646369U (en) | 2022-12-06 | 2022-12-06 | PQT sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218646369U (en) |
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2022
- 2022-12-06 CN CN202223303147.7U patent/CN218646369U/en active Active
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