CN210268989U

CN210268989U - Pressure transmitter with filtering capability

Info

Publication number: CN210268989U
Application number: CN201921564333.1U
Authority: CN
Inventors: 闵科
Original assignee: Jiangsu Pinpai Technology Co ltd
Current assignee: Jiangsu Pinpai Technology Co ltd
Priority date: 2019-09-19
Filing date: 2019-09-19
Publication date: 2020-04-07
Anticipated expiration: 2029-09-19

Abstract

The utility model discloses a pressure transmitter with filtering capability, which comprises a pressure transmitter main body, wherein a display instrument is fixedly arranged at the top of the pressure transmitter main body, the left side of the top of the display instrument is communicated with an electrical connector, the left and right sides of the pressure transmitter main body are respectively and fixedly connected with a filtering mechanism and a supporting frame through a connecting piece, the filtering mechanism comprises a fixed seat, the left side of the fixed seat is fixedly connected with an installation pipe, the top of the outer wall of the installation pipe is provided with a clamping groove, the left and right sides of the bottom of the inner wall of the clamping groove are respectively and fixedly connected with a baffle, the pressure transmitter with filtering capability relates to a pressure transmitter, and through the arrangement of the filtering mechanism, the filtering of impurities in a measuring medium can be realized at the input end of the pressure transmitter, thereby avoiding the damage of internal parts caused by the residues flowing into the pressure, thereby affecting the measurement accuracy and the use effect of the equipment.

Description

Pressure transmitter with filtering capability

Technical Field

The utility model relates to a pressure transmitter specifically is a pressure transmitter with filtering capability.

Background

The pressure transmitter is a device which can convert the physical pressure of gas, liquid and so on into pneumatic signal or electric signal to control and remotely transmit, can sense the pressure parameter and convert it into standard electric signal to supply secondary instruments such as indicating alarm instrument, recorder, regulator and so on to measure, indicate and process regulate, the pressure transmitter is the most common sensor in industrial practice, it is widely used in various industrial self-control environments, relating to water conservancy and hydropower, railway traffic, intelligent building, production self-control, aerospace, war industry, petrochemical industry, oil well, electric power, ship, machine tool, pipeline and so on, the pressure transmitter is a capacitor composed of measuring diaphragm and electrodes on two side insulation sheets, when the two side pressures are not consistent, the measuring diaphragm is caused to generate displacement, the displacement and pressure difference are in direct proportion, so the two side capacitances are not equal, through oscillation and demodulation links, an electrical element for sensing pressure is generally a resistance strain gauge, the resistance strain gauge is a sensitive device for converting pressure on a detected piece into an electric signal, the resistance strain gauge is mostly applied to two types of metal resistance strain gauges and semiconductor strain gauges, the metal resistance strain gauges are also provided with two types of wire-shaped strain gauges and metal foil-shaped strain gauges, the strain gauges are generally tightly adhered to a base body for generating mechanical strain through a special adhesive, and when the base body is stressed and changes in stress, the resistance strain gauges are also deformed together, so that the resistance value of the strain gauges is changed, and the voltage applied to a resistor is changed.

When an existing pressure transmitter is used for measurement, threaded connection is usually used as a standard interface mode, after the pressure transmitter is used for a long time, a measurement medium can affect normal operation of equipment, residual medium residues can flow into an installation hole and be hardened when the pressure transmitter is detached, if the residues are not cleared away in time, parts can be damaged, frequent cleaning work can deepen damage to a sensor, and therefore the pressure transmitter with the filtering function is designed to solve the problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a pressure transmitter with filtering capability to solve the problem of proposing among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

a pressure transmitter with a filtering function comprises a pressure transmitter main body, wherein a display instrument is fixedly arranged at the top of the pressure transmitter main body, the left side of the top of the display instrument is communicated with an electrical connector, it is characterized in that the left side and the right side of the pressure transmitter main body are respectively and fixedly connected with a filtering mechanism and a supporting frame through connecting pieces, the filtering mechanism comprises a fixed seat, the left side of the fixed seat is fixedly connected with an installation pipe, the top of the outer wall of the mounting pipe is provided with a clamping groove, the left side and the right side of the bottom of the inner wall of the clamping groove are both fixedly connected with a baffle plate, a detachable filter cylinder is fixedly arranged in the clamping groove and positioned at the top of the baffle, the detachable filter cylinder comprises a cover plate, the bottom of the cover plate is provided with a sliding groove, a sliding block is connected in the sliding groove in a sliding way, and the bottom fixedly connected with filter screen of slider, the left side of installation pipe is through thread bush fixedly connected with pipeline.

As a further aspect of the present invention: through being provided with filter mechanism, can be the filtering that realizes carrying out impurity in the measured medium at pressure transmitter's input, avoided the residue to flow into pressure transmitter's inside and cause the damage of inside spare part to influence the measurement accuracy and the result of use of equipment, can be favorable to the clearance of impurity simultaneously, need not frequent maintenance and maintenance to pressure transmitter, in order to avoid repeated many clean mounting hole and cause the degree of equipment damage to deepen.

Further, threaded holes are formed in the top and the bottom of the connecting piece, the inner wall of the connecting piece is welded to the pressure transmitter main body, and the connecting piece is distributed in a central symmetry mode.

Furthermore, the support frame comprises a vertical plate and a support, the connecting piece is fixedly connected with the vertical plate through a bolt, and one end, far away from the vertical plate, of the support is fixedly connected with an external wall body or an upright post.

Furthermore, a sealing ring is fixedly embedded between the filtering mechanism and the connecting piece, and an annular groove matched with the sealing ring is formed in one side, opposite to the connecting piece, of the fixing seat.

Further, the cover plate is of an arc-shaped structure, four threaded holes are formed in the cover plate and distributed in a rectangular array, two mounting holes are formed in the baffle plate, and the four mounting holes are matched with the four threaded holes.

As a further aspect of the present invention: can dismantle the filter screen through being provided with, realize quick dismantlement and the installation of filter screen, reduce operating personnel's repair time, improve dismantlement efficiency, the in-process of the washing of carrying out the filter screen and maintaining, it is very quick convenient to change the filter screen, has improved pressure transmitter's installation effectiveness.

Furthermore, the left side of the threaded sleeve is in threaded connection with a pipeline, and the right side of the threaded sleeve is in threaded connection with a filtering mechanism.

Drawings

Fig. 1 is a schematic structural diagram of a pressure transmitter with a filtering function.

Fig. 2 is a schematic structural diagram of a filtering mechanism in a pressure transmitter having a filtering function.

Fig. 3 is a schematic diagram of a removable filter cartridge in a pressure transmitter with filtering capabilities.

In the figure: 1. a pressure transmitter body; 2. a display instrument; 3. an electrical connector; 4. a connecting member; 5. a support frame; 6. a filtering mechanism; 7. a seal ring; 8. a fixed seat; 9. installing a pipe; 10. a card slot; 11. a baffle plate; 12. a removable filter cartridge; 13. a cover plate; 14. a chute; 15. a slider; 16. filtering with a screen; 17. a threaded sleeve; 18. a pipeline.

Detailed Description

The technical solution of the present patent will be described in further detail with reference to the following embodiments.

Referring to fig. 1-3, a pressure transmitter with filtering function comprises a pressure transmitter body 1, a display instrument 2 is fixedly installed on the top of the pressure transmitter body 1, the left side of the top of the display instrument 2 is communicated with an electrical connector 3, the left and right sides of the pressure transmitter body 1 are respectively and fixedly connected with a filtering mechanism 6 and a supporting frame 5 through a connecting piece 4, the supporting frame 5 comprises a vertical plate and a bracket, the connecting piece 4 is fixedly connected with the vertical plate through a bolt, one end of the bracket far away from the vertical plate is fixedly connected with an external wall or an upright post, the top and the bottom of the connecting piece 4 are respectively provided with a threaded hole, the inner wall of the connecting piece 4 is welded on the pressure transmitter body 1, the two connecting pieces 4 are distributed in central symmetry, the filtering mechanism 6 comprises a fixed seat 8, a sealing ring 7 is fixedly embedded between the filtering mechanism 6 and the connecting piece 4, one side of, the left side of the fixed seat 8 is fixedly connected with a mounting pipe 9, the top of the outer wall of the mounting pipe 9 is provided with a clamping groove 10, the left and right sides of the bottom of the inner wall of the clamping groove 10 are fixedly connected with a baffle plate 11, a detachable filter cylinder 12 is fixedly arranged in the clamping groove 10 and positioned at the top of the baffle plate 11, the detachable filter cylinder 12 comprises a cover plate 13, the cover plate 13 is of an arc structure, the cover plate 13 is provided with four threaded holes, the four threaded holes are distributed in a rectangular array, two mounting holes are respectively formed in the two baffle plates 11, the four mounting holes are matched with the four threaded holes, the bottom of the cover plate 13 is provided with a sliding groove 14, the sliding groove 14 is internally and slidably connected with a sliding block 15, the bottom of the sliding block 15 is fixedly connected with a filter screen 16, the left side of the mounting pipe 9 is, through being provided with filter mechanism 6, can realize carrying out the filtering of measuring medium internal impurity at pressure transmitter's input, avoided the residue to flow into pressure transmitter's inside and cause the damage of inside spare part to influence the measurement accuracy and the result of use of equipment, can be favorable to the clearance of impurity simultaneously, need not frequent maintenance to pressure transmitter, in order to avoid repeated many clean mounting holes and cause the degree of equipment damage to deepen.

The utility model discloses a theory of operation is: when the pressure transmitter is actually used, in the installation process, an operator firstly fixedly installs the pressure transmitter main body 1 in a bolt connection mode through the support frame 5, then adjusts the angle of the pressure transmitter to adapt to the observation and recording of pressure values of workers, one side of the outer wall of the installation pipe 9 is fixedly installed with the pipeline 18 through the threaded sleeve 17, the electric connection port 3 is connected with a pipeline, when the equipment works, the impurity in a measured medium can be filtered through the filter screen 16, the cleanness of the medium flowing into the pressure transmitter main body 1 is ensured, when the equipment is overhauled and maintained, the filter screen 16 needs to be disassembled so as to clean or replace the filter screen 16, by disassembling the screws, the detachable filter cylinder 12 can be disassembled, the sliding block 15 is pushed out from the sliding groove 14, the filter screen 16 is cleaned, and the cleaned filter screen 16 is reversely installed along the disassembly sequence, the filter screen 16 can be cleaned, and the operation is very quick and convenient.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

Although the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.

Claims

1. A pressure transmitter with a filtering function comprises a pressure transmitter main body (1), wherein a display instrument (2) is fixedly mounted at the top of the pressure transmitter main body (1), an electrical connector (3) is communicated with the left side of the top of the display instrument (2), and the pressure transmitter is characterized in that the left side and the right side of the pressure transmitter main body (1) are respectively and fixedly connected with a filtering mechanism (6) and a supporting frame (5) through connecting pieces (4), the filtering mechanism (6) comprises a fixing seat (8), a mounting pipe (9) is fixedly connected to the left side of the fixing seat (8), a clamping groove (10) is formed in the top of the outer wall of the mounting pipe (9), baffles (11) are fixedly connected to the left side and the right side of the bottom of the inner wall of the clamping groove (10), and a detachable filter cylinder (12) is fixedly mounted at the top of the baffles (11), the detachable filter cartridge (12) comprises a cover plate (13), a sliding groove (14) is formed in the bottom of the cover plate (13), a sliding block (15) is connected in the sliding groove (14) in a sliding mode, a filter screen (16) is fixedly connected to the bottom of the sliding block (15), and a pipeline (18) is fixedly connected to the left side of the installation pipe (9) through a threaded sleeve (17).

2. The pressure transmitter with the filtering function according to claim 1, wherein the top and the bottom of the connecting piece (4) are both provided with threaded holes, the inner wall of the connecting piece (4) is welded on the pressure transmitter main body (1), and the two connecting pieces (4) are distributed in a central symmetry manner.

3. The pressure transmitter with the filtering function according to claim 1, wherein the supporting frame (5) comprises a vertical plate and a bracket, the connecting member (4) is fixedly connected with the vertical plate through a bolt, and one end of the bracket, which is far away from the vertical plate, is fixedly connected with an external wall or an upright column.

4. The pressure transmitter with the filtering function according to claim 1, wherein a sealing ring (7) is fixedly embedded between the filtering mechanism (6) and the connecting member (4), and annular grooves matched with the sealing ring (7) are formed in the opposite sides of the fixing seat (8) and the connecting member (4).

5. The pressure transmitter with the filtering function according to claim 1, wherein the cover plate (13) is configured to be an arc-shaped structure, four threaded holes are formed in the cover plate (13), the four threaded holes are distributed in a rectangular array, two mounting holes are formed in each of the two baffles (11), and the four mounting holes are matched with the four threaded holes.

6. Pressure transmitter with filtering function according to claim 1, characterized in that the threaded sleeve (17) is threaded on the left with a pipe (18) and the threaded sleeve (17) is threaded on the right with a filtering mechanism (6).