CN215640716U - Electronic differential pressure type intelligent online densimeter - Google Patents
Electronic differential pressure type intelligent online densimeter Download PDFInfo
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- CN215640716U CN215640716U CN202121526880.8U CN202121526880U CN215640716U CN 215640716 U CN215640716 U CN 215640716U CN 202121526880 U CN202121526880 U CN 202121526880U CN 215640716 U CN215640716 U CN 215640716U
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Abstract
The utility model discloses an electronic differential pressure type intelligent online densimeter, which comprises a flange connecting component, a first sensor component and a second sensor component which are sequentially connected from top to bottom; the flange connecting assembly comprises a process assembly, an intelligent circuit board, a cable, a flange and a flange plate; the first sensor assembly comprises a first connecting pipe, a first shell press ring, a first sensor press ring, a first ceramic capacitance sensor, a first sealing gasket and a first circuit conversion plate; the second sensor assembly comprises a second connecting pipe, a second shell press ring, a second sensor press ring, a second ceramic capacitance sensor, a second sealing gasket and a second circuit conversion plate. According to the utility model, two high-precision ceramic capacitance sensors which are arranged up and down and independently installed are adopted, so that the upper ceramic capacitance sensor and the lower ceramic capacitance sensor are fully covered by a measured medium, the measurement precision is higher, and the high-temperature resistance is better.
Description
Technical Field
The utility model relates to the field of densimeters, in particular to an electronic differential pressure type intelligent online densimeter.
Background
Before the densimeter is placed in liquid for measurement, equilibrium setting is needed, and after the densimeter is vertical and stable, measurement is carried out. The probe diaphragm of the densimeter adopts a welded isolation diaphragm, which is only 0.05 mm-0.08 mm, and is often corroded and punctured by tiny particles due to overhigh liquid temperature, so that the problem of oil leakage is caused; in addition, the existing intelligent online densimeter adopts a metal capacitance sensor, the production and processing are relatively complex, and due to the defects of the metal capacitance sensor, the standing time in high-temperature liquid is too long, so that the influence is large, and the measurement is inaccurate.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an electronic differential pressure type intelligent online densimeter, which is used for solving the problem that a metal capacitance sensor is inaccurate in measurement due to the fact that a probe diaphragm of the densimeter is easy to damage.
The technical scheme adopted by the utility model for solving the technical problems is as follows:
an electronic differential pressure type intelligent online densimeter comprises a flange connecting assembly, a first sensor assembly and a second sensor assembly which are sequentially connected from top to bottom;
the flange connecting assembly comprises a process assembly, an intelligent circuit board, a cable, a flange and a flange plate;
one end of the flange is connected with the first sensor assembly, the other end of the flange is connected with the process assembly, the flange plate is arranged on the flange, the intelligent circuit board is arranged in the process assembly and is connected with the first sensor assembly and the second sensor assembly through cables, and the cables penetrate through the process assembly and are connected with the signal acquisition end;
the first sensor assembly comprises a first connecting pipe, a first shell press ring, a first sensor press ring, a first ceramic capacitance sensor, a first sealing gasket and a first circuit conversion plate;
one end of the first connecting pipe is connected with the center of the lower end face of the flange, the other end of the first connecting pipe is connected with the first shell, the first shell pressing ring is arranged in the first shell, the first ceramic capacitance sensor is arranged in the first shell through a first sealing gasket, and two ends of the first circuit conversion board are arranged in the first shell pressing ring through the first sensor pressing ring and are connected with the first ceramic capacitance sensor;
the second sensor assembly comprises a second connecting pipe, a second shell press ring, a second sensor press ring, a second ceramic capacitance sensor, a second sealing gasket and a second circuit conversion plate;
one end of the second connecting pipe is connected with the center of the lower end face of the first shell, the other end of the second connecting pipe is connected with the second shell, the second shell pressing ring is arranged in the second shell, the second ceramic capacitor sensor is arranged in the second shell through the second sealing gasket, and two ends of the second circuit conversion board are arranged in the second shell pressing ring through the second sensor pressing ring and are connected with the second ceramic capacitor sensor.
Preferably, the process component comprises a process adapter and a process connector;
the process connecting piece is arranged on the upper end face of the flange, and the process adapter is arranged on the process connecting piece;
the intelligent circuit board is arranged in the process connecting piece, and the cable penetrates through the process adapter to be connected with the signal acquisition end.
Preferably, first O-shaped gaskets are arranged at two ends of the first shell pressing ring.
Preferably, two ends of the second shell pressing ring are provided with second O-shaped gaskets.
Preferably, the heat insulation pipe assembly is further included; the heat insulation pipe assembly is connected with the flange connecting assembly and sleeved on the first sensor assembly and the second sensor assembly, and the first sensor assembly and the second sensor assembly are hermetically arranged in the heat insulation pipe assembly;
the temperature insulation pipe assembly can be preferably movably lifted from the bottom of the second sensor assembly to the upper end of the first sensor assembly, and comprises a first heat insulation pipe and a second heat insulation pipe; the lifting rod and the 1 st-n section of heat insulation pipe;
the 1 st-n section separates the warm pipe and connects gradually the cover and establish first sensor subassembly with on the second sensor subassembly, the 1 st section separates warm pipe one end and flange coupling assembling lower terminal surface fixed connection, and the other end separates warm pipe sealing connection with adjacent section, the nth section separates warm pipe one end and separates warm pipe sealing connection with the n-1 st section, the other end and second sensor subassembly end-to-end connection, it sets up to carry pull rod one end the nth section separates warm intraductally and is connected with it, and the other end passes flange coupling assembling sets up at flange coupling assembling up end.
Preferably, the diameters and the lengths of the nth section of the heat insulation pipe to the 1 st section of the heat insulation pipe are sequentially reduced, and the nth section of the heat insulation pipe and the 1 st section of the heat insulation pipe can be arranged in adjacent sections of the heat insulation pipes;
the length of the 1 st section of thermal insulation pipe does not exceed the shortest distance from the flange connecting assembly to the first sensor assembly;
preferably, the device also comprises a display alarm component;
the display alarm assembly is connected with a cable at the process adapter head end and displays liquid density and realizes alarm.
Preferably, the display alarm assembly comprises a distribution box, and a secondary instrument, an alarm lamp, a signal acquisition cable, a signal output cable and a power supply cable which are arranged on the distribution box;
the distribution box is connected with the cable through a signal acquisition cable.
The utility model has the following beneficial effects:
1. two high-precision ceramic capacitance sensors which are arranged up and down and independently installed are adopted, so that the upper ceramic capacitance sensor and the lower ceramic capacitance sensor are fully covered by a measured medium, the measurement precision is higher, and the high-temperature resistance is better;
2. by arranging the heat insulation pipe assembly, the situation that the probe diaphragm is broken due to too fast temperature rise when the densimeter enters high-temperature liquid for balance adjustment can be avoided, and the precision of the sensor is improved;
3. adopt the three-colour alarm lamp, can show liquid density in real time to report to the police when high low level, reach the control purpose.
Drawings
FIG. 1 is a schematic structural view of an embodiment of the present invention;
FIG. 2 is an internal cross-sectional view of the present invention;
FIG. 3 is a schematic perspective view of the thermal insulation pipe of the 1 st to 3 rd sections according to the present invention;
FIG. 4 is a schematic view of the internal structure of the thermal insulation pipe of the 1 st to 3 rd sections of the present invention;
the notation in the figures means:
1-a second shell press ring; 2-a second housing; 3-a first housing; 4-a second sensor pressure ring; 5-process adapter; 6-process connections; 7-a flange; 8-a first ceramic capacitive sensor; 9-a first sealing gasket; 10-a first circuit conversion plate; 11-a first O-ring gasket; 12-a cable; 13-a smart circuit board; 14-a flange plate; 15-secondary instrumentation; 16-a distribution box; 17-a warning light; 18-a signal acquisition cable; 19-signal output cable; 20-power supply cable; 21-a first sensor pressure ring; 22-a first housing pressure ring; 23-a second ceramic capacitive sensor; 24-a second circuit conversion board; 25-a first connection pipe; 26-a second connecting tube; 27-a second sealing gasket; 28-a second O-ring gasket; 29-flange connection assembly; 30-a first sensor assembly; 31-a second sensor assembly; 32-a process component; 33-display alarm assembly; 34-a thermal insulation pipe assembly; 35-lifting a pull rod; 36-section 1 thermal insulation pipe; 37-section 2 thermal insulation pipe; 38-section 3 thermal insulation pipe; 39-upper ring groove; 40-lower ring groove.
Detailed Description
The technical solution of the present invention is further described below with reference to the following embodiments and the accompanying drawings.
Example 1
The embodiment provides an electronic differential pressure type intelligent online densimeter, which comprises a flange connecting component 29, a first sensor component 30 and a second sensor component 31 which are sequentially connected from top to bottom;
in a further embodiment of the present embodiment, the flange connection assembly 29 includes a process assembly 32, a smart circuit board 13, a cable 12, a flange 7, and a flange plate 14;
one end of the flange 7 is connected with the first sensor assembly 30, the other end of the flange is connected with the process assembly 32, the flange plate 14 is arranged on the flange 7, the intelligent circuit board 13 is arranged in the process assembly 32 and is connected with the first sensor assembly 30 and the second sensor assembly 31 through the cable 12, and the intelligent circuit board 13 is protected by the process assembly 32; cable 12 is connected to the signal acquisition terminal through process component 32.
The first sensor assembly 30 comprises a first connecting pipe 25, a first shell 3, a first shell press ring 22, a first sensor press ring 21, a first ceramic capacitance sensor 8, a first sealing gasket 9 and a first circuit conversion board 10;
one end of a first connecting pipe 25 is connected with the center of the lower end face of the flange 7, the other end of the first connecting pipe is connected with the first shell 3, a first shell pressing ring 22 is arranged in the first shell 3, a first ceramic capacitance sensor 8 is arranged in the first shell 3 through a first sealing gasket 9, and two ends of a first circuit conversion board 10 are arranged in the first shell pressing ring 22 through a first sensor pressing ring 21 and are connected with the first ceramic capacitance sensor 8;
the second sensor assembly 31 comprises a second connecting pipe 26, a second shell 2, a second shell press ring 1, a second sensor press ring 4, a second ceramic capacitance sensor 23, a second sealing gasket 27 and a second circuit conversion plate 24;
one end of a second connecting pipe 26 is connected with the center of the lower end face of the first shell 3, the other end of the second connecting pipe is connected with the second shell 2, a second shell press ring 1 is arranged in the second shell 2, a second ceramic capacitance sensor 23 is arranged in the second shell 2 through a second sealing gasket 27, and two ends of a second circuit conversion plate 24 are arranged in the second shell press ring 1 through a second sensor press ring 4 and connected with the second ceramic capacitance sensor 23;
the utility model discloses a first sensor assembly 30 and a second sensor assembly 31, wherein the internal structures of the first sensor assembly 30 and the second sensor assembly 31 are the same, the first ceramic capacitance sensor 8 and the second ceramic capacitance sensor 23 which are independent and high in precision are adopted, the first ceramic capacitance sensor 8 and the second ceramic capacitance sensor 23 are arranged up and down during action, a measured medium fully covers the upper first ceramic capacitance sensor 8 and the lower second ceramic capacitance sensor 23, the pressure of the medium is connected onto an intelligent circuit board 13 of a process assembly 32 through a first circuit conversion board 10, a second circuit conversion board 24 and a cable 12, and an electric signal is converted into a 4-20mA signal by the intelligent circuit board 13 to be output.
In a further embodiment of this embodiment, process component 32 includes a process adaptor 5 and a process coupling 6;
the process connecting piece 6 is arranged on the upper end face of the flange 7, and the process adapter 5 is arranged on the process connecting piece 6;
the intelligent circuit board 13 is arranged in the process connecting piece 6, and the cable 12 penetrates through the process adapter 5 to be connected with the signal acquisition end.
In a further embodiment of this embodiment, the first casing pressure ring 22 is provided with first O-ring gaskets 11 at two ends, the first O-ring gaskets 11 help to better tightly connect the first casing pressure ring 22 and the first casing 3, and the inner diameter of the first O-ring gasket 11 is 38.5 × 3.
In a further embodiment of this embodiment, the second casing pressure ring 1 is provided with second O-ring gaskets 28 at two ends, the second O-ring gaskets 28 help to better tightly connect the second casing pressure ring 1 and the second casing 2, and the inner diameter of the second O-ring gasket 28 is 38.5 × 3.
In a further embodiment of this embodiment, a thermal insulating tube assembly 34 is also included; the heat insulation pipe assembly 34 is connected with the flange connecting assembly 29 and sleeved on the first sensor assembly 30 and the second sensor assembly 31, and the first sensor assembly 30 and the second sensor assembly 31 are hermetically arranged in the heat insulation pipe assembly 34;
the thermal insulation pipe assembly 34 can be movably lifted from the bottom of the second sensor assembly 31 to the upper end of the first sensor assembly 30;
when insulating temperature pipe assembly 34 and putting into high temperature liquid at the densimeter and carrying out the equilibrium adjustment, it sets up first sensor subassembly 30 and second sensor subassembly 31 in it to insulate temperature pipe assembly 34 is sealed, avoid direct contact high temperature liquid, when the densimeter can test liquid density, open and insulate temperature pipe assembly 34 and make the densimeter get into operating condition, first capacitance sensor 8 and second ceramic capacitance sensor 23 are unlikely to the high temperature this moment, and can direct measurement liquid density, work efficiency has been promoted greatly, and avoid the damage of probe diaphragm.
In a further embodiment of this embodiment, the insulating tube assembly 34 includes; the lifting rod 35, the 1 st section of the heat insulation pipe 36, the 2 nd section of the heat insulation pipe 37 and the 3 rd section of the heat insulation pipe 48; in the present embodiment, the number of the thermal insulation tubes is set to 3 according to the overall length of the first sensor unit 30 and the second sensor unit 31, and n may be other numbers as long as the implementation of the present invention is not affected.
The 1 st section separates the warm pipe 36, the 2 nd section separates warm pipe 37 and the 3 rd section and separates warm pipe 38 and connect the adapter in proper order and establish on first sensor subassembly 30 and second sensor subassembly 31, the 1 st section separates warm pipe 36 one end and passes through screw thread fixed connection with flange coupling assembling 29 lower terminal surface, the other end separates warm pipe sealing connection with adjacent section, the 3 rd separates warm pipe 38 one end and separates warm pipe 37 sealing connection with the 2 nd section, the other end and second sensor subassembly 31 end-to-end connection, lifting rod 35 one end sets up in the 3 rd section separates warm pipe 38 and is connected with it, the other end passes flange coupling assembling 29 and sets up at flange coupling assembling 29 up end.
In a further embodiment of this embodiment, the diameters and lengths of the sections 3 to 1 of the thermal insulation pipes 36 are sequentially decreased progressively and may be arranged in adjacent sections of the thermal insulation pipes;
the length of the section 1 thermal insulation pipe 36 does not exceed the shortest distance between the flange connection assembly 29 and the first sensor assembly 30.
As shown in fig. 4, the upper and lower sections of the 1 st-3 rd section of the heat insulation pipe are respectively provided with an upper ring groove 39 and a lower ring groove 40; the lower ring groove 40 of the 1 st section of the thermal insulation pipe 36 and the upper ring groove 39 of the 2 nd section of the thermal insulation pipe 37 are mutually matched and hermetically connected up and down, and the 2 nd section of the thermal insulation pipe 37 and the 3 rd section of the thermal insulation pipe 38 are hermetically connected in the same way.
The bottom of the 3 rd section heat insulation pipe 38 is provided with an openable sealing cover, and the lifting rod 35 is connected with the sealing cover; the sealing cover is opened upwards from a sealing state by lifting the lifting rod 35 upwards, then the lifting rod 35 further lifts the 3 rd section of the heat insulation pipe 38 upwards, the 3 rd section of the heat insulation pipe 38 is lifted to the 2 nd section of the heat insulation pipe 37, the position of the annular groove 39 is limited and cannot penetrate through the 2 nd section of the heat insulation pipe 37 to enter the 1 st section of the heat insulation pipe 36, and therefore the 2 nd section of the heat insulation pipe 37 is driven to be lifted upwards similarly until the 3 rd section of the heat insulation pipe 38 and the 2 nd section of the heat insulation pipe 37 are completely lifted to the 1 st section of the heat insulation pipe 36; at this time, because the length of the 1 st section of the thermal insulation pipe 36 does not exceed the shortest distance between the flange connecting assembly 29 and the first sensor assembly 30, the first sensor assembly 30 and the second sensor assembly 31 are completely exposed in the liquid, so that the density of the liquid is measured, and the thermal insulation pipe assembly 34 plays a role in insulating heat before the measurement.
In a further embodiment of this embodiment, the apparatus further comprises a display alarm component 33;
a display alarm assembly 33 is connected to cable 12 at the end of process sub-joint 5 and displays fluid density and implements an alarm.
In a further embodiment of this embodiment, the display alarm assembly 33 includes a distribution box 16, and a secondary instrument 15, an alarm lamp 17, a signal acquisition cable 18, a signal output cable 19 and a power supply cable 20 which are disposed on the distribution box 16;
the specification of the distribution box 16 is 400 × 300 × 200mm, the secondary instrument supplies power for 220V/24V, and the distribution box 16 is connected with the cable 12 through a signal acquisition cable 18;
the distribution box 16 transmits signals to the secondary instrument 15 through the signal acquisition cable 18, displays the real-time density value on the secondary instrument 15, and gives high-low level alarm through the secondary instrument 15; the alarm lamp 17 adopts red, yellow and green three-color alarm lamps, the alarm lamp 17 is bright in red when in high position, the alarm lamp 17 is bright in yellow when in low position, the green lamp is bright when in normal operation, and simultaneously, 4-20mA or RS485 signals can be output to DCS or an upper computer for the central control room to monitor the medium on site in real time.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (9)
1. An electronic differential pressure type intelligent online densimeter is characterized by comprising a flange connecting assembly, a first sensor assembly and a second sensor assembly which are sequentially connected from top to bottom;
the flange connecting assembly comprises a process assembly, an intelligent circuit board, a cable, a flange and a flange plate;
one end of the flange is connected with the first sensor assembly, the other end of the flange is connected with the process assembly, the flange plate is arranged on the flange, the intelligent circuit board is arranged in the process assembly and is connected with the first sensor assembly and the second sensor assembly through cables, and the cables penetrate through the process assembly and are connected with the signal acquisition end;
the first sensor assembly comprises a first connecting pipe, a first shell press ring, a first sensor press ring, a first ceramic capacitance sensor, a first sealing gasket and a first circuit conversion plate;
one end of the first connecting pipe is connected with the center of the lower end face of the flange, the other end of the first connecting pipe is connected with the first shell, the first shell pressing ring is arranged in the first shell, the first ceramic capacitance sensor is arranged in the first shell through a first sealing gasket, and two ends of the first circuit conversion board are arranged in the first shell pressing ring through the first sensor pressing ring and are connected with the first ceramic capacitance sensor;
the second sensor assembly comprises a second connecting pipe, a second shell press ring, a second sensor press ring, a second ceramic capacitance sensor, a second sealing gasket and a second circuit conversion plate;
one end of the second connecting pipe is connected with the center of the lower end face of the first shell, the other end of the second connecting pipe is connected with the second shell, the second shell pressing ring is arranged in the second shell, the second ceramic capacitor sensor is arranged in the second shell through the second sealing gasket, and two ends of the second circuit conversion board are arranged in the second shell pressing ring through the second sensor pressing ring and are connected with the second ceramic capacitor sensor.
2. The electronic differential pressure intelligent online densitometer of claim 1, wherein the process components comprise a process adapter and a process connector;
the process connecting piece is arranged on the upper end face of the flange, and the process adapter is arranged on the process connecting piece;
the intelligent circuit board is arranged in the process connecting piece, and the cable penetrates through the process adapter to be connected with the signal acquisition end.
3. The electronic differential pressure intelligent online densitometer of claim 1, wherein the first housing pressure ring has a first O-ring gasket disposed on both ends.
4. The electronic differential pressure intelligent online densitometer of claim 1, wherein a second O-ring is provided at both ends of the second housing pressure ring.
5. The electronic differential pressure intelligent online densitometer of any one of claims 1-4, further comprising a thermal insulating tube assembly; the heat insulation pipe assembly is connected with the flange connecting assembly and sleeved on the first sensor assembly and the second sensor assembly, and the first sensor assembly and the second sensor assembly are hermetically arranged in the heat insulation pipe assembly;
the heat insulation pipe assembly can be movably lifted from the bottom of the second sensor assembly to the upper end of the first sensor assembly.
6. The electronic differential pressure intelligent online densitometer of claim 5, wherein the thermally insulated tube assembly comprises; the lifting rod and the 1 st-n section of heat insulation pipe;
the 1 st-n section separates the warm pipe and connects gradually the cover and establish first sensor subassembly with on the second sensor subassembly, the 1 st section separates warm pipe one end and flange coupling assembling lower terminal surface fixed connection, and the other end separates warm pipe sealing connection with adjacent section, the nth section separates warm pipe one end and separates warm pipe sealing connection with the n-1 st section, the other end and second sensor subassembly end-to-end connection, it sets up to carry pull rod one end the nth section separates warm intraductally and is connected with it, and the other end passes flange coupling assembling sets up at flange coupling assembling up end.
7. The electronic differential pressure type intelligent online densitometer of claim 6, wherein the diameters and lengths of the n-th section of the thermal insulation pipe to the 1 st section of the thermal insulation pipe are sequentially decreased and can be arranged in the adjacent sections of the thermal insulation pipe;
the length of the 1 st section of thermal insulation pipe does not exceed the shortest distance from the flange connecting assembly to the first sensor assembly.
8. The electronic differential pressure intelligent online densitometer of any one of claims 1-4, further comprising a display alarm component;
the display alarm assembly is connected with a cable at the process adapter head end and displays liquid density and realizes alarm.
9. The electronic differential pressure type intelligent online densitometer of claim 8, wherein the display alarm assembly comprises a distribution box, and a secondary instrument, an alarm lamp, a signal acquisition cable, a signal output cable and a power supply cable which are arranged on the distribution box;
the distribution box is connected with the cable through a signal acquisition cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121526880.8U CN215640716U (en) | 2021-07-06 | 2021-07-06 | Electronic differential pressure type intelligent online densimeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121526880.8U CN215640716U (en) | 2021-07-06 | 2021-07-06 | Electronic differential pressure type intelligent online densimeter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215640716U true CN215640716U (en) | 2022-01-25 |
Family
ID=79948156
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121526880.8U Active CN215640716U (en) | 2021-07-06 | 2021-07-06 | Electronic differential pressure type intelligent online densimeter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215640716U (en) |
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2021
- 2021-07-06 CN CN202121526880.8U patent/CN215640716U/en active Active
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