CN210719271U - Integrated sensor for measuring fluid temperature and vortex frequency - Google Patents
Integrated sensor for measuring fluid temperature and vortex frequency Download PDFInfo
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- CN210719271U CN210719271U CN201921126642.0U CN201921126642U CN210719271U CN 210719271 U CN210719271 U CN 210719271U CN 201921126642 U CN201921126642 U CN 201921126642U CN 210719271 U CN210719271 U CN 210719271U
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Abstract
The utility model discloses a measure integrated sensor of fluid temperature and vortex frequency, including vortex street probe fin, vortex signal detection sensor, temperature sensor, potting district, gland plate, holding ring, sealed isolation region, dampproofing sealing area, first vortex street signal line and second vortex street signal line, the potting district is connected to vortex street probe fin upper end, and wherein the gland plate is connected to the potting district upper end, gland plate upper end connection holding ring, wherein the sealed isolation region is connected to the holding ring upper end, dampproofing sealing area is connected to sealed isolation region upper end, vortex signal detection sensor, temperature sensor set up inside the potting district, and wherein first vortex street signal line passes dampproofing sealing area, sealed isolation region, holding ring, gland plate and the potting district and is connected with vortex signal detection sensor, and wherein second vortex street signal line passes dampproofing sealing area, dampproofing sealing area, The sealing isolation area, the positioning ring, the press sealing disc and the potting area are connected with the temperature sensor.
Description
Technical Field
The invention belongs to the technical field of fluid flow signal measurement, and particularly relates to an integrated sensor for measuring fluid temperature and vortex frequency.
Background
The vortex shedding flowmeter is a volume flowmeter for measuring the working condition volume flow, standard condition volume flow or mass flow of fluid, steam or liquid according to the Karman vortex shedding principle. When a triangular prism type vortex generating body is provided in a fluid, two rows of vortices proportional to the flow velocity are alternately generated from both sides of the vortex generating body, and such vortices are called karman vortices. The release frequency of the vortex is related to the average speed of the fluid flowing through the vortex generating body and the characteristic width of the vortex generating body, the average speed of the fluid flowing through the vortex generating body can be calculated by measuring the vortex frequency, and then the working condition volume flow is calculated. If a standard condition volume flowmeter of fluid needs to be measured, the temperature and the pressure of the fluid need to be measured, so that a vortex shedding flowmeter needs to be designed with sensors for measuring the temperature, the pressure and the vortex frequency of the fluid.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, provides an integrated sensor for measuring the temperature and the vortex frequency of a fluid, and overcomes the defects that in the prior art, the temperature and the vortex frequency are 1: in the traditional vortex shedding flowmeter, three sensors are independently designed and installed, so that the structure is complex; 2: the prior art does not have a sensor that combines fluid temperature and vortex frequency together; 3: the sensor in the prior art is easy to loosen, and the problems of measuring vortex frequency distortion and the like are caused.
In order to solve the technical problem, the technical scheme of the invention is as follows: the utility model provides a measure integrated sensor of fluid temperature and vortex frequency, includes vortex street probe fin, swirl signal detection sensor, temperature sensor, potting district, pressure seal dish, holding ring, seal isolation region, dampproofing sealing area, first vortex street signal line and second vortex street signal line, the potting district is connected to vortex street probe fin upper end, and wherein the pressure seal dish is connected to potting district upper end, the holding ring is connected to pressure seal dish upper end, and wherein the seal isolation region is connected to the holding ring upper end, dampproofing sealing area is connected to seal isolation region upper end, vortex signal detection sensor, temperature sensor set up inside the potting district, and wherein first vortex street signal line passes dampproofing sealing area, seal isolation region, holding ring, pressure seal dish and the potting district and is connected with vortex signal detection sensor, and wherein second vortex street signal line passes dampproofing sealing area, seal isolation region, holding ring, The press sealing disc and the can sealing area are connected with a temperature sensor.
Preferably, the vortex signal detection sensor is a piezoelectric chip, and the temperature sensor is a thermal resistor.
Preferably, the piezoelectric chip and the thermal resistor are arranged at the bottom of the potting area and close to the tail wing of the vortex street probe, and the piezoelectric chip is arranged at the lower part of the thermal resistor.
Preferably, the vortex street probe empennage and the shell of the potting area are integrally formed, wherein the vortex street probe empennage and the shell of the potting area are both of cylindrical structures, and the diameter of the shell of the potting area is larger than that of the vortex street probe empennage.
Preferably, the shells of the potting area, the sealing isolation area and the moisture-proof sealing area are all of cylindrical structures, wherein the shells of the potting area, the sealing isolation area and the moisture-proof sealing area are all made of 304 stainless steel, and the shells of the potting area, the sealing isolation area and the moisture-proof sealing area are filled with ceramic glue.
Preferably, the pressure seal disc is of a cylindrical structure, the diameter of the pressure seal disc is larger than that of the tank seal area, two threading holes are formed in the pressure seal disc, and the two threading holes are used for enabling a first vortex street signal line and a second vortex street signal line to penetrate through.
Preferably, the positioning ring is welded and fixed on the press sealing disc, wherein the positioning ring is also provided with two threading holes, and the two threading holes on the positioning ring correspond to the two threading holes on the press sealing disc in position.
Preferably, one end face, far away from the press-sealing disc, of the positioning ring is provided with two positioning protrusions, and the two positioning protrusions are arranged on two sides respectively.
Compared with the prior art, the invention has the advantages that:
(1) the sensor for measuring the vortex frequency and the fluid temperature of the fluid is designed into the integrated sensor, so that holes can be reduced on the flowmeter body when the sensor is installed, the structure of the flowmeter body is simplified, meanwhile, the designed positioning ring is beneficial to the installation and fixation of the integrated sensor, and the phenomenon that the integrated sensor rotates under the long-term impact of the fluid to cause the distortion of the measured vortex frequency is avoided;
(2) the piezoelectric chip and the thermal resistor are fixedly sealed at the bottom of the potting area, meanwhile, the interior of a shell of the potting area is filled with ceramic glue, wherein a first vortex street signal line and a second vortex street signal line penetrate through the moisture-proof sealing area, the sealing isolation area, the positioning ring, the pressure sealing disc and the potting area and are respectively connected with the piezoelectric chip and the thermal resistor, and the first vortex street signal line and the second vortex street signal line transmit detected signals to an instrument for processing and analysis, so that the automatic detection of the vortex frequency and the temperature of the fluid is realized;
(3) the integral sensor is of an unequal-diameter cylindrical structure, and has the advantages of simple structure, simplicity and convenience in operation, ingenious design, low cost, convenience in disassembly and high measurement efficiency, and the integral sensor can be tightly fixed with the gland and the flowmeter body.
Drawings
FIG. 1 is a schematic diagram of an integrated sensor for measuring fluid temperature and vortex frequency according to the present invention;
FIG. 2 is a schematic view of an integrated sensor mounting structure for measuring fluid temperature and vortex frequency according to the present invention.
Description of reference numerals:
the device comprises 1-a vortex street probe empennage, 2-a piezoelectric chip, 3-a thermal resistor, 4-a potting area, 5-a press sealing disc, 6-a threading hole, 7-a positioning ring, 8-a sealing isolation area, 9-a moisture-proof sealing area, 10-a positioning bulge, 11-a first vortex street signal line and 12-a second vortex street signal line.
Detailed Description
The following describes embodiments of the present invention with reference to examples:
it should be noted that the structures, proportions, sizes, and other elements shown in the specification are included for the purpose of understanding and reading only, and are not intended to limit the scope of the invention, which is defined by the claims, and any modifications of the structures, changes in the proportions and adjustments of the sizes, without affecting the efficacy and attainment of the same.
In addition, the terms "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the terms is not to be construed as a scope of the present invention.
The piezoelectric chip, the thermal resistor, the ceramic adhesive, the gland and the flowmeter body are all in the prior art.
Example 1
As shown in figure 1, the invention discloses an integrated sensor for measuring fluid temperature and vortex frequency, which comprises a vortex street probe empennage 1, a vortex signal detection sensor, a temperature sensor, a potting area 4, a press seal disc 5, a positioning ring 7, a sealing isolation area 8, a moisture-proof sealing area 9, a first vortex street signal line 11 and a second vortex street signal line 12, wherein the upper end of the vortex street probe empennage 1 is connected with the potting area 4, the upper end of the potting area 4 is connected with the press seal disc 5, the upper end of the press seal disc 5 is connected with the positioning ring 7, the upper end of the positioning ring 7 is connected with the sealing isolation area 8, the upper end of the sealing isolation area 8 is connected with the moisture-proof sealing area 9, the vortex signal detection sensor and the temperature sensor are arranged in the potting area 4, the first vortex street signal line 11 passes through the moisture-proof sealing area 9, the sealing isolation area 8, the positioning ring 7, the press seal disc 5 and the potting area 4, wherein the second vortex street signal line 12 passes through the moisture-proof sealing area 9, the sealing isolation area 8, the positioning ring 7, the press sealing disc 5 and the potting area 4 to be connected with the temperature sensor.
Example 2
As shown in figure 1, the invention discloses an integrated sensor for measuring fluid temperature and vortex frequency, which comprises a vortex street probe empennage 1, a vortex signal detection sensor, a temperature sensor, a potting area 4, a press seal disc 5, a positioning ring 7, a sealing isolation area 8, a moisture-proof sealing area 9, a first vortex street signal line 11 and a second vortex street signal line 12, wherein the upper end of the vortex street probe empennage 1 is connected with the potting area 4, the upper end of the potting area 4 is connected with the press seal disc 5, the upper end of the press seal disc 5 is connected with the positioning ring 7, the upper end of the positioning ring 7 is connected with the sealing isolation area 8, the upper end of the sealing isolation area 8 is connected with the moisture-proof sealing area 9, the vortex signal detection sensor and the temperature sensor are arranged in the potting area 4, the first vortex street signal line 11 passes through the moisture-proof sealing area 9, the sealing isolation area 8, the positioning ring 7, the press seal disc 5 and the potting area 4, wherein the second vortex street signal line 12 passes through the moisture-proof sealing area 9, the sealing isolation area 8, the positioning ring 7, the press sealing disc 5 and the potting area 4 to be connected with the temperature sensor.
As shown in fig. 1, the vortex signal detection sensor is preferably a piezoelectric chip 2, and the temperature sensor is a thermal resistor 3.
Example 3
As shown in figure 1, the invention discloses an integrated sensor for measuring fluid temperature and vortex frequency, which comprises a vortex street probe empennage 1, a vortex signal detection sensor, a temperature sensor, a potting area 4, a press seal disc 5, a positioning ring 7, a sealing isolation area 8, a moisture-proof sealing area 9, a first vortex street signal line 11 and a second vortex street signal line 12, wherein the upper end of the vortex street probe empennage 1 is connected with the potting area 4, the upper end of the potting area 4 is connected with the press seal disc 5, the upper end of the press seal disc 5 is connected with the positioning ring 7, the upper end of the positioning ring 7 is connected with the sealing isolation area 8, the upper end of the sealing isolation area 8 is connected with the moisture-proof sealing area 9, the vortex signal detection sensor and the temperature sensor are arranged in the potting area 4, the first vortex street signal line 11 passes through the moisture-proof sealing area 9, the sealing isolation area 8, the positioning ring 7, the press seal disc 5 and the potting area 4, wherein the second vortex street signal line 12 passes through the moisture-proof sealing area 9, the sealing isolation area 8, the positioning ring 7, the press sealing disc 5 and the potting area 4 to be connected with the temperature sensor.
As shown in fig. 1, the vortex signal detection sensor is preferably a piezoelectric chip 2, and the temperature sensor is a thermal resistor 3.
As shown in fig. 1, the piezoelectric chip 2 and the thermal resistor 3 are preferably disposed at the bottom of the potting area 4 near the vortex street probe tail 1, wherein the piezoelectric chip 2 is disposed below the thermal resistor 3.
Example 4
As shown in figure 1, the invention discloses an integrated sensor for measuring fluid temperature and vortex frequency, which comprises a vortex street probe empennage 1, a vortex signal detection sensor, a temperature sensor, a potting area 4, a press seal disc 5, a positioning ring 7, a sealing isolation area 8, a moisture-proof sealing area 9, a first vortex street signal line 11 and a second vortex street signal line 12, wherein the upper end of the vortex street probe empennage 1 is connected with the potting area 4, the upper end of the potting area 4 is connected with the press seal disc 5, the upper end of the press seal disc 5 is connected with the positioning ring 7, the upper end of the positioning ring 7 is connected with the sealing isolation area 8, the upper end of the sealing isolation area 8 is connected with the moisture-proof sealing area 9, the vortex signal detection sensor and the temperature sensor are arranged in the potting area 4, the first vortex street signal line 11 passes through the moisture-proof sealing area 9, the sealing isolation area 8, the positioning ring 7, the press seal disc 5 and the potting area 4, wherein the second vortex street signal line 12 passes through the moisture-proof sealing area 9, the sealing isolation area 8, the positioning ring 7, the press sealing disc 5 and the potting area 4 to be connected with the temperature sensor.
As shown in fig. 1, the vortex signal detection sensor is preferably a piezoelectric chip 2, and the temperature sensor is a thermal resistor 3.
As shown in fig. 1, the piezoelectric chip 2 and the thermal resistor 3 are preferably disposed at the bottom of the potting area 4 near the vortex street probe tail 1, wherein the piezoelectric chip 2 is disposed below the thermal resistor 3.
As shown in fig. 1, it is preferable that the vortex street probe empennage 1 and the housing of the potting area 4 are integrally formed, wherein the housing of the vortex street probe empennage 1 and the housing of the potting area 4 are both cylindrical structures, and the housing diameter of the potting area 4 is larger than that of the vortex street probe empennage 1.
Example 5
As shown in figure 1, the invention discloses an integrated sensor for measuring fluid temperature and vortex frequency, which comprises a vortex street probe empennage 1, a vortex signal detection sensor, a temperature sensor, a potting area 4, a press seal disc 5, a positioning ring 7, a sealing isolation area 8, a moisture-proof sealing area 9, a first vortex street signal line 11 and a second vortex street signal line 12, wherein the upper end of the vortex street probe empennage 1 is connected with the potting area 4, the upper end of the potting area 4 is connected with the press seal disc 5, the upper end of the press seal disc 5 is connected with the positioning ring 7, the upper end of the positioning ring 7 is connected with the sealing isolation area 8, the upper end of the sealing isolation area 8 is connected with the moisture-proof sealing area 9, the vortex signal detection sensor and the temperature sensor are arranged in the potting area 4, the first vortex street signal line 11 passes through the moisture-proof sealing area 9, the sealing isolation area 8, the positioning ring 7, the press seal disc 5 and the potting area 4, wherein the second vortex street signal line 12 passes through the moisture-proof sealing area 9, the sealing isolation area 8, the positioning ring 7, the press sealing disc 5 and the potting area 4 to be connected with the temperature sensor.
As shown in fig. 1, the vortex signal detection sensor is preferably a piezoelectric chip 2, and the temperature sensor is a thermal resistor 3.
As shown in fig. 1, the piezoelectric chip 2 and the thermal resistor 3 are preferably disposed at the bottom of the potting area 4 near the vortex street probe tail 1, wherein the piezoelectric chip 2 is disposed below the thermal resistor 3.
As shown in fig. 1, it is preferable that the vortex street probe empennage 1 and the housing of the potting area 4 are integrally formed, wherein the housing of the vortex street probe empennage 1 and the housing of the potting area 4 are both cylindrical structures, and the housing diameter of the potting area 4 is larger than that of the vortex street probe empennage 1.
As shown in fig. 1, preferably, the shells of the potting area 4, the seal isolation area 8 and the moisture-proof seal area 9 are all cylindrical structures, wherein the shells of the potting area 4, the seal isolation area 8 and the moisture-proof seal area 9 are all 304 stainless steel, and the interiors of the shells of the potting area 4, the seal isolation area 8 and the moisture-proof seal area 9 are all filled with ceramic cement.
Example 6
As shown in figure 1, the invention discloses an integrated sensor for measuring fluid temperature and vortex frequency, which comprises a vortex street probe empennage 1, a vortex signal detection sensor, a temperature sensor, a potting area 4, a press seal disc 5, a positioning ring 7, a sealing isolation area 8, a moisture-proof sealing area 9, a first vortex street signal line 11 and a second vortex street signal line 12, wherein the upper end of the vortex street probe empennage 1 is connected with the potting area 4, the upper end of the potting area 4 is connected with the press seal disc 5, the upper end of the press seal disc 5 is connected with the positioning ring 7, the upper end of the positioning ring 7 is connected with the sealing isolation area 8, the upper end of the sealing isolation area 8 is connected with the moisture-proof sealing area 9, the vortex signal detection sensor and the temperature sensor are arranged in the potting area 4, the first vortex street signal line 11 passes through the moisture-proof sealing area 9, the sealing isolation area 8, the positioning ring 7, the press seal disc 5 and the potting area 4, wherein the second vortex street signal line 12 passes through the moisture-proof sealing area 9, the sealing isolation area 8, the positioning ring 7, the press sealing disc 5 and the potting area 4 to be connected with the temperature sensor.
As shown in fig. 1, the vortex signal detection sensor is preferably a piezoelectric chip 2, and the temperature sensor is a thermal resistor 3.
As shown in fig. 1, the piezoelectric chip 2 and the thermal resistor 3 are preferably disposed at the bottom of the potting area 4 near the vortex street probe tail 1, wherein the piezoelectric chip 2 is disposed below the thermal resistor 3.
As shown in fig. 1, it is preferable that the vortex street probe empennage 1 and the housing of the potting area 4 are integrally formed, wherein the housing of the vortex street probe empennage 1 and the housing of the potting area 4 are both cylindrical structures, and the housing diameter of the potting area 4 is larger than that of the vortex street probe empennage 1.
As shown in fig. 1, preferably, the shells of the potting area 4, the seal isolation area 8 and the moisture-proof seal area 9 are all cylindrical structures, wherein the shells of the potting area 4, the seal isolation area 8 and the moisture-proof seal area 9 are all 304 stainless steel, and the interiors of the shells of the potting area 4, the seal isolation area 8 and the moisture-proof seal area 9 are all filled with ceramic cement.
As shown in fig. 1, preferably, the press-sealing disk 5 is a cylindrical structure, wherein the diameter of the press-sealing disk 5 is greater than that of the potting area 4, and two threading holes 6 are formed in the press-sealing disk 5, wherein the two threading holes 6 are used for a first vortex street signal line 11 and a second vortex street signal line 12 to pass through.
Example 7
As shown in figure 1, the invention discloses an integrated sensor for measuring fluid temperature and vortex frequency, which comprises a vortex street probe empennage 1, a vortex signal detection sensor, a temperature sensor, a potting area 4, a press seal disc 5, a positioning ring 7, a sealing isolation area 8, a moisture-proof sealing area 9, a first vortex street signal line 11 and a second vortex street signal line 12, wherein the upper end of the vortex street probe empennage 1 is connected with the potting area 4, the upper end of the potting area 4 is connected with the press seal disc 5, the upper end of the press seal disc 5 is connected with the positioning ring 7, the upper end of the positioning ring 7 is connected with the sealing isolation area 8, the upper end of the sealing isolation area 8 is connected with the moisture-proof sealing area 9, the vortex signal detection sensor and the temperature sensor are arranged in the potting area 4, the first vortex street signal line 11 passes through the moisture-proof sealing area 9, the sealing isolation area 8, the positioning ring 7, the press seal disc 5 and the potting area 4, wherein the second vortex street signal line 12 passes through the moisture-proof sealing area 9, the sealing isolation area 8, the positioning ring 7, the press sealing disc 5 and the potting area 4 to be connected with the temperature sensor.
As shown in fig. 1, the vortex signal detection sensor is preferably a piezoelectric chip 2, and the temperature sensor is a thermal resistor 3.
As shown in fig. 1, the piezoelectric chip 2 and the thermal resistor 3 are preferably disposed at the bottom of the potting area 4 near the vortex street probe tail 1, wherein the piezoelectric chip 2 is disposed below the thermal resistor 3.
As shown in fig. 1, it is preferable that the vortex street probe empennage 1 and the housing of the potting area 4 are integrally formed, wherein the housing of the vortex street probe empennage 1 and the housing of the potting area 4 are both cylindrical structures, and the housing diameter of the potting area 4 is larger than that of the vortex street probe empennage 1.
As shown in fig. 1, preferably, the shells of the potting area 4, the seal isolation area 8 and the moisture-proof seal area 9 are all cylindrical structures, wherein the shells of the potting area 4, the seal isolation area 8 and the moisture-proof seal area 9 are all 304 stainless steel, and the interiors of the shells of the potting area 4, the seal isolation area 8 and the moisture-proof seal area 9 are all filled with ceramic cement.
As shown in fig. 1, preferably, the press-sealing disk 5 is a cylindrical structure, wherein the diameter of the press-sealing disk 5 is greater than that of the potting area 4, and two threading holes 6 are formed in the press-sealing disk 5, wherein the two threading holes 6 are used for a first vortex street signal line 11 and a second vortex street signal line 12 to pass through.
As shown in fig. 1, preferably, the positioning ring 7 is welded and fixed on the press-sealing disk 5, wherein the positioning ring 7 is also provided with two threading holes 6, and the two threading holes 6 on the positioning ring 7 correspond to the two threading holes 6 on the press-sealing disk 5 in position.
Example 8
As shown in figure 1, the invention discloses an integrated sensor for measuring fluid temperature and vortex frequency, which comprises a vortex street probe empennage 1, a vortex signal detection sensor, a temperature sensor, a potting area 4, a press seal disc 5, a positioning ring 7, a sealing isolation area 8, a moisture-proof sealing area 9, a first vortex street signal line 11 and a second vortex street signal line 12, wherein the upper end of the vortex street probe empennage 1 is connected with the potting area 4, the upper end of the potting area 4 is connected with the press seal disc 5, the upper end of the press seal disc 5 is connected with the positioning ring 7, the upper end of the positioning ring 7 is connected with the sealing isolation area 8, the upper end of the sealing isolation area 8 is connected with the moisture-proof sealing area 9, the vortex signal detection sensor and the temperature sensor are arranged in the potting area 4, the first vortex street signal line 11 passes through the moisture-proof sealing area 9, the sealing isolation area 8, the positioning ring 7, the press seal disc 5 and the potting area 4, wherein the second vortex street signal line 12 passes through the moisture-proof sealing area 9, the sealing isolation area 8, the positioning ring 7, the press sealing disc 5 and the potting area 4 to be connected with the temperature sensor.
As shown in fig. 1, the vortex signal detection sensor is preferably a piezoelectric chip 2, and the temperature sensor is a thermal resistor 3.
As shown in fig. 1, the piezoelectric chip 2 and the thermal resistor 3 are preferably disposed at the bottom of the potting area 4 near the vortex street probe tail 1, wherein the piezoelectric chip 2 is disposed below the thermal resistor 3.
As shown in fig. 1, it is preferable that the vortex street probe empennage 1 and the housing of the potting area 4 are integrally formed, wherein the housing of the vortex street probe empennage 1 and the housing of the potting area 4 are both cylindrical structures, and the housing diameter of the potting area 4 is larger than that of the vortex street probe empennage 1.
As shown in fig. 1, preferably, the shells of the potting area 4, the seal isolation area 8 and the moisture-proof seal area 9 are all cylindrical structures, wherein the shells of the potting area 4, the seal isolation area 8 and the moisture-proof seal area 9 are all 304 stainless steel, and the interiors of the shells of the potting area 4, the seal isolation area 8 and the moisture-proof seal area 9 are all filled with ceramic cement.
As shown in fig. 1, preferably, the press-sealing disk 5 is a cylindrical structure, wherein the diameter of the press-sealing disk 5 is greater than that of the potting area 4, and two threading holes 6 are formed in the press-sealing disk 5, wherein the two threading holes 6 are used for a first vortex street signal line 11 and a second vortex street signal line 12 to pass through.
As shown in fig. 1, preferably, the positioning ring 7 is welded and fixed on the press-sealing disk 5, wherein the positioning ring 7 is also provided with two threading holes 6, and the two threading holes 6 on the positioning ring 7 correspond to the two threading holes 6 on the press-sealing disk 5 in position.
As shown in fig. 1, preferably, one end surface of the positioning ring 7 away from the sealing plate 5 is provided with two positioning protrusions 10, wherein the two positioning protrusions 10 are respectively arranged on two sides.
Example 9
As shown in figure 1, the invention discloses an integrated sensor for measuring fluid temperature and vortex frequency, which comprises a vortex street probe empennage 1, a vortex signal detection sensor, a temperature sensor, a potting area 4, a press seal disc 5, a positioning ring 7, a sealing isolation area 8, a moisture-proof sealing area 9, a first vortex street signal line 11 and a second vortex street signal line 12, wherein the upper end of the vortex street probe empennage 1 is connected with the potting area 4, the upper end of the potting area 4 is connected with the press seal disc 5, the upper end of the press seal disc 5 is connected with the positioning ring 7, the upper end of the positioning ring 7 is connected with the sealing isolation area 8, the upper end of the sealing isolation area 8 is connected with the moisture-proof sealing area 9, the vortex signal detection sensor and the temperature sensor are arranged in the potting area 4, the first vortex street signal line 11 passes through the moisture-proof sealing area 9, the sealing isolation area 8, the positioning ring 7, the press seal disc 5 and the potting area 4, wherein the second vortex street signal line 12 passes through the moisture-proof sealing area 9, the sealing isolation area 8, the positioning ring 7, the press sealing disc 5 and the potting area 4 to be connected with the temperature sensor.
As shown in fig. 1, the vortex signal detection sensor is preferably a piezoelectric chip 2, and the temperature sensor is a thermal resistor 3.
As shown in fig. 1, the piezoelectric chip 2 and the thermal resistor 3 are preferably disposed at the bottom of the potting area 4 near the vortex street probe tail 1, wherein the piezoelectric chip 2 is disposed below the thermal resistor 3.
As shown in fig. 1, it is preferable that the vortex street probe empennage 1 and the housing of the potting area 4 are integrally formed, wherein the housing of the vortex street probe empennage 1 and the housing of the potting area 4 are both cylindrical structures, and the housing diameter of the potting area 4 is larger than that of the vortex street probe empennage 1.
As shown in fig. 1, preferably, the shells of the potting region 4, the seal isolation region 8 and the moisture-proof seal region 9 are all cylindrical structures, wherein the shells of the potting region 4, the seal isolation region 8 and the moisture-proof seal region 9 are all 304 stainless steel (S15/S25), and the interiors of the shells of the potting region 4, the seal isolation region 8 and the moisture-proof seal region 9 are all filled with ceramic cement.
As shown in fig. 1, preferably, the press-sealing disk 5 is a cylindrical structure, wherein the diameter of the press-sealing disk 5 is greater than that of the potting area 4, and two threading holes 6 are formed in the press-sealing disk 5, wherein the two threading holes 6 are used for a first vortex street signal line 11 and a second vortex street signal line 12 to pass through.
As shown in fig. 1, preferably, the positioning ring 7 is welded and fixed on the press-sealing disk 5, wherein the positioning ring 7 is also provided with two threading holes 6, and the two threading holes 6 on the positioning ring 7 correspond to the two threading holes 6 on the press-sealing disk 5 in position.
As shown in fig. 1, preferably, one end surface of the positioning ring 7 away from the sealing plate 5 is provided with two positioning protrusions 10, wherein the two positioning protrusions 10 are respectively arranged on two sides.
As shown in fig. 1 to 2, preferably, the method for measuring an integrated sensor for measuring a fluid temperature and a vortex frequency includes the following steps:
step 1) fixing an integrated sensor (see the middle part in the figure 2) on a flowmeter body (see the lowest part in the figure 2) by using a gland (see the uppermost part in the figure 2), wherein a positioning ring 7 of the integrated sensor is meshed with a positioning groove on the gland, the integrated sensor is vertical to the flowmeter body, and the integrated sensor is arranged behind a vortex generator;
step 2) when the fluid flows through the flowmeter body, the vortex generating body generates a vortex, the vortex street probe empennage 1 of the integrated sensor senses the impact of the fluid vortex, the vortex street probe empennage 1 transmits the impact of the vortex to a vortex signal detection sensor and a temperature sensor, wherein the vortex signal detection sensor detects a fluid vortex frequency signal, and the temperature sensor detects a fluid temperature signal;
and 3) acquiring and transmitting signals detected by the vortex signal detection sensor and the temperature sensor to an instrument for processing and analysis through the first vortex street signal line 11 and the second vortex street signal line 12.
The thermal resistor is PT 1000/500/100.
The working principle of the invention is as follows:
the vortex street probe empennage 1 of the integrated sensor senses the impact of fluid vortex, the vortex street probe empennage 1 transmits the impact of the vortex to a vortex signal detection sensor and a temperature sensor, wherein the vortex signal detection sensor detects a fluid vortex frequency signal, and the temperature sensor detects a fluid temperature signal; the signals detected by the vortex signal detection sensor and the temperature sensor are collected and transmitted to the instrument for processing and analysis through the first vortex street signal line 11 and the second vortex street signal line 12.
The piezoelectric chip 2 and the thermal resistor 3 are filled in the potting area 4 together, the potting area 4 is filled with ceramic glue and is used for potting and fixing the piezoelectric chip 2 and the thermal resistor 3, and the press-sealing disc 5 is used for press-sealing the potting area 4 and is of a solid cylinder structure; the positioning ring 7 is used for positioning direction when the integrated sensor is installed and is a solid body, and two threading holes 6 are formed between the positioning ring 7 and the pressure sealing disc 5 and used for passing through a first vortex street signal line 11 and a second vortex street signal line 12; the filler of the sealing isolation area 8 is ceramic glue which is used for further isolating the sealing encapsulation area 4; the filler of the moisture-proof sealing area 9 is ceramic glue, so that the first vortex street signal line 11 and the second vortex street signal line 12 are prevented from being affected with moisture.
The sensor for measuring the vortex frequency and the fluid temperature of the fluid is designed into an integrated sensor, so that holes can be reduced on the flowmeter body when the sensor is installed, the structure of the flowmeter body is simplified, meanwhile, the designed positioning ring is beneficial to installation and fixation of the integrated sensor, and the phenomenon that the integrated sensor rotates under long-term impact of the fluid to cause the distortion of the measured vortex frequency is avoided.
The piezoelectric chip and the thermal resistor are fixedly sealed at the bottom of the potting area, meanwhile, the interior of the housing of the potting area is filled with ceramic glue, wherein a first vortex street signal line and a second vortex street signal line penetrate through the moisture-proof sealing area, the sealing isolation area, the positioning ring, the pressure sealing disc and the potting area and are respectively connected with the piezoelectric chip and the thermal resistor, and the first vortex street signal line and the second vortex street signal line transmit detected signals to the instrument for processing and analysis, so that the automatic detection of the vortex frequency of the fluid and the temperature of the fluid is realized.
The integral sensor is of an unequal-diameter cylindrical structure, and has the advantages of simple structure, simple and convenient operation, ingenious design, low cost, tight fixation of the integral sensor with the gland and the flowmeter body, convenient disassembly and high measurement efficiency.
While the preferred embodiments of the present invention have been described in detail, the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.
Many other changes and modifications can be made without departing from the spirit and scope of the invention. It is to be understood that the invention is not to be limited to the specific embodiments, but only by the scope of the appended claims.
Claims (8)
1. An integrated sensor for measuring fluid temperature and vortex frequency is characterized in that: including vortex street probe fin (1), vortex signal detection sensor, temperature sensor, potting district (4), pressure seal dish (5), holding ring (7), seal isolation region (8), dampproofing seal zone (9), first vortex street signal line (11) and second vortex street signal line (12), potting district (4) is connected to vortex street probe fin (1) upper end, wherein pressure seal dish (5) is connected to potting district (4) upper end, holding ring (7) is connected to pressure seal dish (5) upper end, wherein holding ring (7) upper end connection seal isolation region (8), dampproofing seal zone (9) is connected to seal isolation region (8) upper end, vortex signal detection sensor, temperature sensor set up inside potting district (4), wherein dampproofing seal zone (9), seal isolation region (8), holding ring (7) are passed in first vortex street signal line (11), sealing district (8), holding ring (7), The pressure seal disc (5) and the tank seal area (4) are connected with a vortex signal detection sensor, wherein a second vortex street signal line (12) penetrates through the moisture-proof seal area (9), the seal isolation area (8), the positioning ring (7), the pressure seal disc (5) and the tank seal area (4) to be connected with a temperature sensor.
2. The integrated sensor of claim 1, wherein the sensor is configured to measure fluid temperature and vortex frequency: the vortex signal detection sensor is a piezoelectric chip (2), and the temperature sensor is a thermal resistor (3).
3. An integrated sensor for measuring fluid temperature and vortex frequency as claimed in claim 2 wherein: the piezoelectric chip (2) and the thermal resistor (3) are arranged at the bottom of the potting area (4) and close to the vortex street probe empennage (1), wherein the piezoelectric chip (2) is arranged at the lower part of the thermal resistor (3).
4. The integrated sensor of claim 1, wherein the sensor is configured to measure fluid temperature and vortex frequency: the vortex street probe empennage (1) and the shell of the potting area (4) are integrally formed, wherein the shells of the vortex street probe empennage (1) and the potting area (4) are of cylindrical structures, and the diameter of the shell of the potting area (4) is larger than that of the vortex street probe empennage (1).
5. The integrated sensor of claim 1, wherein the sensor is configured to measure fluid temperature and vortex frequency: the casing of canning district (4), sealed isolation region (8) and dampproofing sealing area (9) is cylindrical structure, and wherein the casing of canning district (4), sealed isolation region (8) and dampproofing sealing area (9) is 304 stainless steel, the inside packing by ceramic cement of casing of canning district (4), sealed isolation region (8) and dampproofing sealing area (9).
6. The integrated sensor of claim 1, wherein the sensor is configured to measure fluid temperature and vortex frequency: the pressure seal disc (5) is of a cylindrical structure, the diameter of the pressure seal disc (5) is larger than that of the tank seal area (4), two threading holes (6) are formed in the pressure seal disc (5), and the two threading holes (6) are used for enabling a first vortex street signal line (11) and a second vortex street signal line (12) to penetrate through.
7. An integrated sensor for measuring fluid temperature and vortex frequency according to claim 6, wherein: the positioning ring (7) is welded and fixed on the press sealing disc (5), wherein the positioning ring (7) is also provided with two threading holes (6), and the two threading holes (6) on the positioning ring (7) correspond to the two threading holes (6) on the press sealing disc (5).
8. An integrated sensor for measuring fluid temperature and vortex frequency as claimed in claim 7 wherein: the end face, far away from the press-sealing disc (5), of the positioning ring (7) is provided with two positioning protrusions (10), wherein the two positioning protrusions (10) are respectively arranged on two sides.
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| CN201921126642.0U CN210719271U (en) | 2019-07-18 | 2019-07-18 | Integrated sensor for measuring fluid temperature and vortex frequency |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110375813A (en) * | 2019-07-18 | 2019-10-25 | 中国石油天然气股份有限公司 | A kind of integrated transducer and measurement method measuring fluid temperature (F.T.) and vortex frequency |
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2019
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110375813A (en) * | 2019-07-18 | 2019-10-25 | 中国石油天然气股份有限公司 | A kind of integrated transducer and measurement method measuring fluid temperature (F.T.) and vortex frequency |
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