CN214583790U - Digital pressure transmitter shell - Google Patents
Digital pressure transmitter shell Download PDFInfo
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- CN214583790U CN214583790U CN202022650026.4U CN202022650026U CN214583790U CN 214583790 U CN214583790 U CN 214583790U CN 202022650026 U CN202022650026 U CN 202022650026U CN 214583790 U CN214583790 U CN 214583790U
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Abstract
The utility model discloses a digital pressure transmitter casing, connect the end including sense terminal casing, automatically controlled casing, signal connection end, power, automatically controlled casing is the columnar body, install the lateral wall of automatically controlled casing signal connection end, power connection end, the one end of the columnar body is equipped with the casing end cover, install the columnar body other end through sensor connecting portion the sense terminal casing. The shell structure is designed in a partitioning mode, circuit design is improved, digital circuit processing is adopted, analog quantity processing of the digital circuit is completed through programs, the problems can be solved as long as programming is carried out, the structure is simple, debugging is convenient, and the requirement for signal fidelity can be met.
Description
Technical Field
The utility model belongs to the technical field of pressure transmitter technique and specifically relates to a digital pressure transmitter casing.
Background
In the nuclear industry, due to the problems of nuclear radiation, irradiation and the like, all adopted instruments adopt nuclear-grade equipment, and the nuclear-grade equipment is designed during design and installation so as to prolong the service life of the nuclear-grade equipment. For example, some conventional transmissions fail to meet nuclear grade requirements during a pressure differential sensing operation. When people send a conventional transmitter into a nuclear reaction plant area for detection test, the problems that equipment has detection faults or the detection precision is low and the like are found in a short service cycle. Due to the fact that faults occur, equipment is replaced and installed, and due to the fact that the equipment belongs to the nuclear industry, radiation can exist in all operations, and life safety of people is threatened. The transmitter circuitry consists of a load cell sensor (also known as a pressure sensor), measurement processing circuitry, and process connections. The pressure sensor can convert the physical pressure parameter of the liquid sensed by the pressure element sensor into a standard electric signal to be supplied to secondary instruments such as an indication alarm instrument, a recorder and a regulator for measurement, indication and process regulation. The measuring circuit in the transmitter in the prior art usually adopts a circuit, and the measuring range in the circuit is limited, so that the required value cannot be measured, and therefore, a transmitter suitable for the nuclear industry needs to be designed aiming at the use environment of the nuclear industry.
SUMMERY OF THE UTILITY MODEL
The utility model provides a digital pressure transmitter casing to the demand that the nuclear industry protected against radiation, through carrying out the partition design to the shell structure, improves circuit design, adopts digital circuit to handle, and digital circuit handles the analog quantity and accomplishes through the procedure, as long as the programming just can solve these problems, simple structure, and the debugging is convenient, and can satisfy the requirement to signal fidelity. The sealing requirement and the layout of the internal cavity are met, and the problems of signal interference, incompact layout and the like are solved.
In order to achieve the above purpose, the utility model adopts the following specific technical scheme: a digital pressure transmitter casing, its key lies in: the detection end comprises a detection end shell, an electric control shell, a signal connection end and a power supply connection end, wherein the electric control shell is a cylindrical body, the signal connection end and the power supply connection end are mounted on the side wall of the electric control shell, a shell end cover is arranged at one end of the cylindrical body, and the detection end shell is mounted at the other end of the cylindrical body through a sensor connection part;
a circuit board cavity is arranged in the electric control shell and is sealed in the electric control shell through a shell end cover, the electric control shell and the detection end shell are connected through a tee welding sleeve, a signal line via hole is formed in the tee welding sleeve, one end of the signal line via hole is communicated with the detection end shell, the other end of the signal line via hole is communicated with a wire harness hole in the electric control shell, and the wire harness hole is communicated with the circuit board cavity;
the signal connecting part of the electric control shell is provided with a signal output hole, the power supply connecting part of the electric control shell is provided with a power supply input hole, the signal output hole formed in the signal connecting part of the electric control shell is communicated with the signal connecting end, and the power supply connecting end is communicated with the cavity of the circuit board through the power supply input hole of the power supply connecting part of the electric control shell;
the sensor is installed in the detection end shell, and the detection end shell is provided with a detection hole.
By adopting the scheme, through the design, the sensor is arranged in the sensor cavity, the pressure difference signal is obtained through the detection holes, the pressure difference signal is processed by the signal conversion circuit and is sent into the circuit board cavity of the electric control shell through the detection signal input holes, and the pressure difference signal is processed by the digital circuit and is output outwards through the signal connection end head. The detection part, the signal processing part and the signal output part are designed into chambers and are independent. And each chamber is isolated from each other, and for the principle of irradiation linear propagation, irradiation is weakened in a partitioning and isolating mode.
Still further, the circuit board cavity, the harness hole and the signal line via hole are located on a central axis of the column of the electronic control housing, wherein a diameter of the circuit board cavity is larger than a diameter of the harness hole.
The other end of the columnar body is provided with a meter cylinder bottom plate, and the lateral wall of the columnar body forms a meter head shell;
the gauge outfit shell barrel, the outer wall of the wire harness hole and the gauge barrel bottom plate form a shielding chamber in an enclosing mode;
at least 2 signal line via holes are formed in the partition boards of the circuit board cavity and the shielding cavity, at least 2 signal connectors are arranged in the signal line via holes, and the signal connectors extend into the shielding cavity;
the shielding cavity is communicated with the signal output hole, the signal line via holes and the signal output hole are arranged in a staggered mode, and the signal line via holes form an anti-radiation channel through a line channel of the shielding cavity and the signal output hole;
the meter cylinder bottom plate is provided with a sensor connecting part through hole, and the meter cylinder bottom plate is welded with the meter head shell cylinder.
And a shell end cover of the electric control shell is fixed on the gauge outfit shell barrel, and a 0-shaped sealing ring is arranged at the fixed position of the electric control shell.
By adopting the scheme, the partition structure can not cause the mutual influence of circuit elements, a novel structure is adopted, and a digital circuit is used, so that the digital circuit can meet the requirement and change the purpose by changing a program under the condition of not changing the circuit structure or only adding some standard auxiliary processing units, and is more flexible relative to an analog circuit.
Further, the signal connection end comprises a signal aviation socket base, a signal connector socket and a signal connector plug which are connected in sequence;
the power supply connection end comprises a power supply aviation socket base, a power supply connector socket and a power supply connector plug which are connected in sequence.
The utility model has the advantages that: aiming at the radiation protection requirement of the nuclear industry, the shell structure is designed, most parts of detection, signal processing and signal output of the differential pressure transmitter are partitioned, and a cavity is correspondingly set for circuit arrangement. These advantages of digital circuits are more prominent with respect to a large number and variety of signal processing. The digital circuit is easier to standardize, and the greatest benefit is that the cost is sharply reduced, and the time for constructing the circuit is greatly shortened. The detection, conversion and output of the signals are completed through the processing of the multi-stage circuit. Meanwhile, aiming at the nuclear grade requirement, a control circuit board cavity for preventing irradiation is reserved and used for installing a lead box for preventing irradiation. The function is divided, the design is precise, and the sealing effect is good.
Drawings
Fig. 1 is a perspective view of the present invention;
fig. 2 is a right side view of the present invention;
FIG. 3 is a cross-sectional view A-A of FIG. 4;
fig. 4 is a front view of the present invention;
FIG. 5 is a cross-sectional view C-C of FIG. 4;
fig. 6 is a left side view of the present invention.
Detailed Description
The following provides a more detailed description of the embodiments and the operation of the present invention with reference to the accompanying drawings.
As can be seen in conjunction with fig. 1, 2 and 5, a digital pressure transmitter housing, characterized by: the device comprises a detection end shell C, an electric control shell B, a signal connection end A and a power supply connection end D, wherein the electric control shell B is a cylindrical body, the signal connection end A and the power supply connection end D are installed on the side wall of the electric control shell B, a shell end cover 1 is arranged at one end of the cylindrical body, and the detection end shell C is installed at the other end of the cylindrical body through a sensor connection part;
as can be seen from fig. 5, a circuit board cavity 3 is arranged in the electronic control housing B, the circuit board cavity 3 is sealed in the electronic control housing B through a housing end cover 1, the electronic control housing B and the detection end housing C are connected by a three-way welding sleeve 13, a signal line via hole is formed in the three-way welding sleeve 13, one end of the signal line via hole is communicated with the detection end housing C, the other end of the signal line via hole is communicated with a wire harness hole 6 in the electronic control housing B, and the wire harness hole 6 is communicated with the circuit board cavity 3;
a signal connecting part of the electric control shell B is provided with a signal output hole 7, a power supply connecting part of the electric control shell B is provided with a power supply input hole 8, the signal output hole 7 formed in the signal connecting part of the electric control shell B is communicated with the signal connecting end A, the power supply connecting end D is communicated with the circuit board cavity 3 through the power supply input hole 8 of the power supply connecting part of the electric control shell B, and the signal connecting end A and the power supply connecting end D are symmetrically arranged;
the sensor is installed in the detection end shell C, and the detection end shell C is provided with a detection hole 12.
As can be seen from fig. 2 and 5, the circuit board chamber 3, the wire harness hole 6 and the signal line via hole are located on the central axis of the column of the electronic control housing B, wherein the diameter of the circuit board chamber 3 is larger than the diameter of the wire harness hole 6.
As can be seen from fig. 5, the watch case bottom plate 10 is arranged at the other end of the cylindrical body, and the watch case 4 is formed on the side wall of the cylindrical body;
the gauge outfit shell barrel 4, the outer wall of the wire harness hole 6 and the gauge barrel bottom plate 10 enclose a shielding chamber 9;
4 signal line via holes are formed in the partition boards of the circuit board cavity 3 and the shielding cavity 9, 4 signal connectors 11 are arranged in the signal line via holes, and the signal connectors extend into the shielding cavity 9;
the shielding cavity 9 is communicated with the signal output hole 7, the signal line via holes and the signal output hole 7 are arranged in a staggered mode, and the signal line via holes form an anti-radiation channel through the shielding cavity 9 and a line channel of the signal output hole 7;
sensor connecting part through holes are formed in the panel of the meter cylinder bottom plate 10, and the meter cylinder bottom plate 10 is welded with the meter head shell cylinder 4.
As can be seen from fig. 3 and 5, the case end cap 1 of the electronic control case B is fixed on the gauge outfit case 4, and a 0-shaped sealing ring is installed at the fixed position.
As can be seen from fig. 4, the two opposite end portions of the three-way welding sleeve 13 are respectively provided with a sleeve cover, the two sleeve covers are respectively provided with one detection hole 12, and the two detection holes 12 are symmetrically arranged;
and the sensor connecting part of the electric control shell B is connected with the vertical end part of the three-way welding sleeve 13, and the vertical end part of the three-way welding sleeve 13 is enclosed into a first transfer circuit board chamber 15.
As can be seen from fig. 1, the signal connection terminal a includes a signal aviation socket base 21A, a signal connector socket 22A and a signal connector plug 23A which are connected in sequence;
as can be seen from fig. 6, the power connection terminal D includes a power aviation socket base 21D, a power connector socket 22D and a power connector plug 23D which are connected in sequence.
Claims (6)
1. A digital pressure transmitter housing, characterized by: the detection device comprises a detection end shell (C), an electric control shell (B), a signal connection end (A) and a power supply connection end (D), wherein the electric control shell (B) is a cylindrical body, the signal connection end (A) and the power supply connection end (D) are mounted on the side wall of the electric control shell (B), a shell end cover (1) is arranged at one end of the cylindrical body, and the detection end shell (C) is mounted at the other end of the cylindrical body through a sensor connecting part;
a circuit board cavity (3) is arranged in the electric control shell (B), the circuit board cavity (3) is sealed in the electric control shell (B) through a shell end cover (1), the electric control shell (B) and the detection end shell (C) are connected through a three-way welding sleeve (13), a signal line via hole is formed in the three-way welding sleeve (13), one end of the signal line via hole is communicated with the detection end shell (C), the other end of the signal line via hole is communicated with a wiring harness hole (6) in the electric control shell (B), and the wiring harness hole (6) is communicated with the circuit board cavity (3);
a signal connecting part of the electric control shell (B) is provided with a signal output hole (7), a power supply connecting part of the electric control shell (B) is provided with a power supply input hole (8), the signal output hole (7) formed on the signal connecting part of the electric control shell (B) is communicated with the signal connecting end (A), and the power supply connecting end (D) is communicated with the circuit board cavity (3) through the power supply input hole (8) of the power supply connecting part of the electric control shell (B);
the sensor is installed in the detection end shell (C), and the detection end shell (C) is provided with a detection hole (12).
2. The digital pressure transmitter housing of claim 1, wherein: the circuit board cavity (3), the wiring harness holes (6) and the signal line via holes are located on a central axis of a column body of the electric control shell (B), wherein the diameter of the circuit board cavity (3) is larger than that of the wiring harness holes (6).
3. The digital pressure transmitter housing of claim 2, wherein: a meter cylinder bottom plate (10) is arranged at the other end of the cylindrical body, and a meter head shell (4) is formed on the lateral wall of the cylindrical body;
the gauge outfit shell barrel (4), the outer wall of the wire harness hole (6) and the gauge barrel bottom plate (10) enclose a shielding chamber (9);
at least 2 signal line through holes are formed in the partition boards of the circuit board cavity (3) and the shielding cavity (9), at least 2 signal connectors (11) are arranged in the signal line through holes, and the signal connectors extend into the shielding cavity (9);
the shielding cavity (9) is communicated with the signal output hole (7), the signal line via holes and the signal output hole (7) are arranged in a staggered mode, and the signal line via holes form an anti-radiation channel through the shielding cavity (9) and a line channel of the signal output hole (7);
the meter cylinder bottom plate (10) is provided with a sensor connecting part via hole on the panel, and the meter cylinder bottom plate (10) is welded with the meter head shell cylinder (4).
4. The digital pressure transmitter housing of claim 3, wherein: and a shell end cover (1) of the electric control shell (B) is fixed on the gauge outfit shell barrel (4), and a 0-shaped sealing ring is arranged at the fixed position of the electric control shell (B).
5. The digital pressure transmitter housing of claim 4, wherein: two end parts, which are opposite to the three-way welding sleeve (13), are respectively provided with a sleeve cover, the two sleeve covers are respectively provided with one detection hole (12), and the two detection holes (12) are symmetrically arranged;
and the sensor connecting part of the electric control shell (B) is connected with the vertical end part of the three-way welding sleeve (13), and a first switching circuit board chamber (15) is formed by the vertical end part of the three-way welding sleeve (13) in a surrounding manner.
6. The digital pressure transmitter housing of claim 5, wherein: the signal connection end (A) comprises a signal aviation socket base (21A), a signal connector socket (22A) and a signal connector plug (23A) which are connected in sequence;
the power supply connecting end (D) comprises a power supply aviation socket base (21D), a power supply connector socket (22D) and a power supply connector plug (23D) which are connected in sequence.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022650026.4U CN214583790U (en) | 2020-11-13 | 2020-11-13 | Digital pressure transmitter shell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022650026.4U CN214583790U (en) | 2020-11-13 | 2020-11-13 | Digital pressure transmitter shell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214583790U true CN214583790U (en) | 2021-11-02 |
Family
ID=78324491
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022650026.4U Active CN214583790U (en) | 2020-11-13 | 2020-11-13 | Digital pressure transmitter shell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214583790U (en) |
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2020
- 2020-11-13 CN CN202022650026.4U patent/CN214583790U/en active Active
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