CN213022108U

CN213022108U - Acid and alkali resistant pressure transmitter

Info

Publication number: CN213022108U
Application number: CN202022423216.2U
Authority: CN
Inventors: 王二艳; 刘志平
Original assignee: Tianjin Zhongyi Zhicheng Technology Co ltd
Current assignee: Tianjin Zhongyi Zhicheng Technology Co ltd
Priority date: 2020-10-27
Filing date: 2020-10-27
Publication date: 2021-04-20
Anticipated expiration: 2030-10-27

Abstract

The utility model provides an anti acid-base's pressure transmitter belongs to pressure transmitter technical field. The acid and alkali resistant pressure transmitter comprises a detection mechanism, an acid and alkali resistant mechanism and a display mechanism. The detection mechanism comprises a pressure detection piece, a pressure detection diaphragm, a mounting assembly, a first sealing ring and a second sealing ring, wherein the pressure detection diaphragm is mounted at one end of the pressure detection piece. The utility model discloses an effect of first intake antrum, recess, pressure detection diaphragm, the resistant acid-base layer of antiaciding, the connection room, a spring, sealing plug and second intake antrum to reached the purpose that the resistant acid-base can be good, pressure transmitter's pressure detection baffle and pipeline's inner wall are provided with anticorrosion structure, the reducible corruption of taking the liquid of acid-base, can wash pressure transmitter's pressure detection baffle and pipeline's inner wall simultaneously, reduce the corruption of remaining acid-base liquid, pressure transmitter's life has been improved.

Description

Acid and alkali resistant pressure transmitter

Technical Field

The utility model relates to a pressure transmitter field particularly, relates to an anti acid-base's pressure transmitter.

Background

The pressure transmitter is a device for converting pressure into pneumatic signal or electric signal to control and remotely transmit, and can convert the physical pressure parameters of gas, liquid and the like sensed by the load cell sensor into standard electric signals to be supplied to secondary instruments such as indication alarm instrument, recorder, regulator and the like to carry out measurement, indication and process regulation.

SUMMERY OF THE UTILITY MODEL

In order to make up for the above deficiency, the utility model provides an acid and alkali resistant pressure transmitter aims at improving the poor problem of acid and alkali resistant performance.

The utility model discloses a realize like this:

the utility model provides an anti acid-base's pressure transmitter, include detection mechanism, anti acid-base mechanism and display mechanism.

The detection mechanism comprises a pressure detection piece, a pressure detection diaphragm, an installation component, a first sealing ring and a second sealing ring, the pressure detection diaphragm is installed at one end of the pressure detection piece, the first sealing ring and the second sealing ring are connected to the outer surface of the pressure detection piece, the installation component is installed on the outer surface of the pressure detection piece, the first sealing ring is located below the installation component, the acid and alkali resistant mechanism comprises a connection chamber, a support component, a spring, a sealing plug and an acid and alkali resistant layer, a groove is formed in one side of the connection chamber, the pressure detection piece is inserted into the groove, the installation component is in threaded connection with the connection chamber, a first water inlet groove and a second water inlet groove are respectively formed in two sides of the connection chamber, the first water inlet groove and the second water inlet groove are communicated with the groove, and the acid and alkali resistant layer is connected to the inner walls of the first water inlet groove and the groove, the supporting component is mounted on the inner wall of the second water inlet groove, the two ends of the spring are connected with the supporting component and the sealing plug, the sealing plug is of a circular truncated cone shape, one end of the sealing plug is located in the second water inlet groove, and the display mechanism is arranged at the other end of the pressure detection piece.

In an embodiment of the acid and alkali resistant pressure transmitter of the present invention, the supporting component comprises a disc and a supporting rod, and both ends of the supporting rod are connected to the inner wall of the second water inlet tank.

In the acid and alkali resistant pressure transmitter embodiment of the present invention, the number of the supporting rods is three, and the angle between every two adjacent supporting rods is equal.

The utility model discloses an antiacidity pressure transmitter embodiment, the installation component includes flange and bolt, flange joint in pressure measurement spare surface, the through-hole has been seted up to the flange internal surface, the bolt peg graft in the through-hole.

In an embodiment of the acid and alkali resistant pressure transmitter of the present invention, the first sealing ring is located between the flange and the connection chamber, and the second sealing ring is in interference fit with the groove.

In the embodiment of the pressure transmitter of the present invention, a first thread groove is formed on one side of the connection chamber, the first thread groove corresponds to the through hole one-to-one, and the first thread groove is connected to the bolt thread.

In an embodiment of the acid and alkali resistant pressure transmitter of the present invention, the second water inlet tank is located above the first water inlet tank.

The utility model discloses an antalkali's pressure transmitter embodiment, detection mechanism still includes support and threaded rod, the support connect in the pressure detection spare other end, the threaded rod install in support one side.

The utility model discloses an antiacidity pressure transmitter embodiment, display mechanism includes dial plate and display screen, dial plate threaded connection in the threaded rod, the display screen set up in dial plate one side.

The utility model discloses an antiacidity pressure transmitter embodiment, the second thread groove has been seted up to dial plate one end, the threaded rod with second thread groove threaded connection.

The utility model has the advantages that: the utility model discloses an anti acid-base's pressure transmitter who obtains through above-mentioned design, during the use, people let in the liquid of acid-base from first intake flume, the liquid of acid-base enters into the recess through the layer of resisting acid-base, and extrude the pressure detection diaphragm, pressure detection spare can convert pressure into the signal and show on the display screen, the liquid of acid-base can reduce the corruption of acid-base to the first intake flume and the recess inner wall of linkage chamber in the layer of resisting acid-base, after the detection is accomplished, let in the clear water from the second intake flume, when the pressure in the second intake flume is greater than the elasticity of spring, the sealing plug can move left, sealing plug and second intake flume separation, the clear water can enter into first intake flume and recess from the second intake flume, wash remaining acid-base liquid on the layer of resisting acid-base in first intake flume and the recess, and also can take away the remaining acid-base liquid on the pressure detection diaphragm, through first intake antrum outflow linkage room, reduce the corruption of remaining acid and alkaline liquid to reach the purpose that the acid and alkaline resistance can be good, pressure transmitter's pressure detection baffle and pipeline's inner wall are provided with anti-corrosion structure, and the reducible corruption of taking acid and alkaline liquid can be washed pressure transmitter's pressure detection baffle and pipeline's inner wall simultaneously, reduces the corruption of remaining acid and alkaline liquid, has improved pressure transmitter's life.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 is a schematic structural diagram of an acid-base resistant pressure transmitter provided by an embodiment of the present invention;

fig. 2 is a schematic structural view of a detection mechanism provided in an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a mounting assembly according to an embodiment of the present invention;

FIG. 4 is a schematic structural view of an acid and alkali resistant mechanism provided in an embodiment of the present invention;

fig. 5 is a schematic structural view of a support assembly according to an embodiment of the present invention;

fig. 6 is a schematic structural view of a display mechanism according to an embodiment of the present invention.

In the figure: 10-a detection mechanism; 110-a pressure detection member; 120-pressure sensing diaphragm; 130-a mounting assembly; 131-a flange; 132-a bolt; 133-a through hole; 140-a first sealing ring; 150-a second seal ring; 160-a support; 170-threaded rod; 20-acid and alkali resistant mechanism; 210-a junction chamber; 220-a support assembly; 221-a disc; 222-a strut; 230-a spring; 240-sealing plug; 250-a first water inlet tank; 260-grooves; 270-a second water inlet tank; 280-a first thread groove; 290-acid and alkali resistant layer; 30-a display mechanism; 310-a dial; 320-a display screen; 330-second thread groove.

Detailed Description

To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined to clearly and completely describe the technical solutions of the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Examples

Referring to fig. 1, the present invention provides an acid and alkali resistant pressure transmitter, which includes a detection mechanism 10, an acid and alkali resistant mechanism 20, and a display mechanism 30.

Wherein, the acid and alkali resistant mechanism 20 and the display mechanism 30 are respectively connected to two ends of the detection mechanism 10, the detection mechanism 10 is used for converting pressure into pneumatic signals or electric signals, the acid and alkali resistant mechanism 20 is used for reducing corrosion of acid and alkali liquid to the detection chamber, and the display mechanism 30 is used for displaying the measured pressure related information.

Referring to fig. 1 and 2, the detecting mechanism 10 includes a pressure detecting element 110, a pressure detecting diaphragm 120, a mounting assembly 130, a first sealing ring 140 and a second sealing ring 150, the pressure detecting diaphragm 120 is mounted at one end of the pressure detecting element 110, the first sealing ring 140 and the second sealing ring 150 are connected to an outer surface of the pressure detecting element 110, specifically, the first sealing ring 140 and the second sealing ring 150 are fixedly connected to the outer surface of the pressure detecting element 110 by gluing, the first sealing ring 140 and the second sealing ring 150 are made of fluorosilicone rubber, the mounting assembly 130 is mounted on the outer surface of the pressure detecting element 110, the first sealing ring 140 is located below the mounting assembly 130, the pressure detecting diaphragm 120 is used for detecting pressure, the pressure detecting element 110 is used for converting pressure into a pneumatic signal or an electric signal, the first sealing ring 140 and the second sealing ring 150 have good acid and alkali resistance for sealing a connection between the pressure detecting element 110 and a detection, the accuracy of the detection structure is improved.

In some specific embodiments, the detecting mechanism 10 further includes a support 160 and a threaded rod 170, the support 160 is connected to the other end of the pressure detecting member 110, specifically, the support 160 is fixedly connected to the other end of the pressure detecting member 110 by welding, the threaded rod 170 is installed on one side of the support 160, specifically, the threaded rod 170 is fixedly installed on one side of the support 160 by welding, and the threaded rod 170 is used for connecting the dial 310.

Referring to fig. 1, 2 and 4, the acid and alkali resistant mechanism 20 includes a connection chamber 210, a support member 220, a spring 230, a sealing plug 240 and an acid and alkali resistant layer 290, a groove 260 is formed on one side of the connection chamber 210, a pressure detection member 110 is inserted into the groove 260, a mounting member 130 is in threaded connection with the connection chamber 210, a first water inlet 250 and a second water inlet 270 are respectively formed on two sides of the connection chamber 210, the first water inlet 250 and the second water inlet 270 are communicated with the groove 260, the acid and alkali resistant layer 290 is connected to inner walls of the first water inlet 250 and the groove 260, specifically, the acid and alkali resistant layer 290 is a polyvinyl chloride layer, the support member 220 is mounted on an inner wall of the second water inlet 270, two ends of the spring 230 are connected with the support member 220 and the sealing plug 240, specifically, two ends of the spring 230 are fixedly connected with the support member 220 and the sealing plug 240 by welding, the sealing plug 240 is a fluorosilicone rubber, the groove 260 is a passage through which, the first water inlet groove 250 is used for detecting a passage of liquid or gas, the acid and alkali resistant layer 290 is used for reducing corrosion of the acid and alkali liquid to the first water inlet groove 250 and the groove 260, the elastic force of the spring 230 is used for driving the sealing plug 240 to move rightwards, so that the sealing plug 240 blocks the second water inlet groove 270, the second water inlet groove 270 is a clean water flushing passage, and clean water enters the first water inlet groove 250 and the groove 260 through the second water inlet groove 270 to flush the acid and alkali liquid remained on the acid and alkali resistant layer 290, so that corrosion is reduced.

The sealing plug 240 is of a circular truncated cone shape, one end of the sealing plug 240 is located in the second water inlet groove 270, and the second water inlet groove 270 is located above the first water inlet groove 250.

Referring to fig. 1, 2 and 6, the display mechanism 30 is disposed at the other end of the pressure detecting member 110, the display mechanism 30 includes a dial 310 and a display screen 320, the dial 310 is connected to the threaded rod 170 in a threaded manner, the display screen 320 is disposed at one side of the dial 310, a second threaded groove 330 is disposed at one end of the dial 310, the threaded rod 170 is connected to the second threaded groove 330 in a threaded manner, and the display screen 320 is used for displaying a signal converted from pressure.

Referring to fig. 2, 3 and 4, the mounting assembly 130 includes a flange 131 and a bolt 132, the flange 131 is connected to the outer surface of the pressure detecting member 110, specifically, the flange 131 is fixedly connected to the outer surface of the pressure detecting member 110 by welding, a through hole 133 is formed in the inner surface of the flange 131, the bolt 132 is inserted into the through hole 133, the first sealing ring 140 is located between the flange 131 and the connecting chamber 210, the second sealing ring 150 is in interference fit with the groove 260, a first threaded groove 280 is formed in one side of the connecting chamber 210, the first threaded groove 280 corresponds to the through hole 133 one to one, the first threaded groove 280 is in threaded connection with the bolt 132, and the bolt 132 is used for fixing the pressure detecting member 110 on the connecting chamber 210 through.

Referring to fig. 4 and 5, the supporting assembly 220 includes a disc 221 and three supporting rods 222, two ends of each supporting rod 222 are connected to the disc 221 and the inner wall of the second water inlet tank 270, specifically, two ends of each supporting rod 222 are fixedly connected to the disc 221 and the inner wall of the second water inlet tank 270 by welding, and the number of the supporting rods 222 is three, and the angles between every two adjacent supporting rods 222 are equal.

The working principle of the acid and alkali resistant pressure transmitter is as follows: when in use, a person enters acidic and alkaline liquid from the first water inlet tank 250, the acidic and alkaline liquid enters the groove 260 through the acid and alkaline resistant layer 290 and presses the pressure detection diaphragm 120, the pressure detection member 110 can convert the pressure into a signal to be displayed on the display screen 320, the acid and alkaline resistant layer 290 can reduce the corrosion of the acidic and alkaline liquid to the inner walls of the first water inlet tank 250 and the groove 260 of the connection chamber 210, after the detection is finished, clear water is introduced from the second water inlet tank 270, when the pressure in the second water inlet tank 270 is greater than the elastic force of the spring 230, the sealing plug 240 moves leftwards and is separated from the second water inlet tank 270, the clear water enters the first water inlet tank 250 and the groove 260 from the second water inlet tank 270, the acidic and alkaline liquid remained on the acid and alkaline resistant layer 290 in the first water inlet tank 250 and the groove 260 is washed, and the acidic and alkaline liquid remained on the pressure detection diaphragm 120 is also taken away, the first water inlet groove 250 flows out of the connecting chamber 210, corrosion of residual acidic and basic liquid is reduced, and therefore the purpose of good acid and basic resistance is achieved.

It should be noted that the specific model specifications of the pressure detection element 110, the dial 310 and the display screen 320 need to be determined by type selection according to the actual specification of the device, and the specific type selection calculation method adopts the prior art, so detailed description is omitted.

The power supply of the pressure sensing member 110, the dial 310 and the display screen 320 and the principle thereof will be apparent to those skilled in the art and will not be described in detail herein.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The pressure transmitter of acid and alkali resistance is characterized by comprising

The detection mechanism (10) comprises a pressure detection piece (110), a pressure detection diaphragm (120), a mounting assembly (130), a first sealing ring (140) and a second sealing ring (150), wherein the pressure detection diaphragm (120) is mounted at one end of the pressure detection piece (110), the first sealing ring (140) and the second sealing ring (150) are connected to the outer surface of the pressure detection piece (110), the mounting assembly (130) is mounted on the outer surface of the pressure detection piece (110), and the first sealing ring (140) is located below the mounting assembly (130);

the acid and alkali resistant mechanism (20) comprises a connecting chamber (210), a supporting component (220), a spring (230), a sealing plug (240) and an acid and alkali resistant layer (290), wherein one side of the connecting chamber (210) is provided with a groove (260), the pressure detection piece (110) is inserted into the groove (260), the mounting component (130) is in threaded connection with the connecting chamber (210), two sides of the connecting chamber (210) are respectively provided with a first water inlet groove (250) and a second water inlet groove (270), the first water inlet groove (250) and the second water inlet groove (270) are communicated with the groove (260), the acid and alkali resistant layer (290) is connected with the inner walls of the first water inlet groove (250) and the groove (260), the supporting component (220) is mounted on the inner wall of the second water inlet groove (270), two ends of the spring (230) are connected with the supporting component (220) and the sealing plug (240), the sealing plug (240) is in a circular truncated cone shape, and one end of the sealing plug (240) is positioned in the second water inlet groove (270);

and the display mechanism (30), the display mechanism (30) is arranged at the other end of the pressure detection piece (110).

2. The acid and alkali resistant pressure transmitter of claim 1, wherein the support assembly (220) comprises a disc (221) and a support rod (222), and both ends of the support rod (222) are connected with the disc (221) and the inner wall of the second water inlet tank (270).

3. An acid and base resistant pressure transmitter according to claim 2, characterized in that said struts (222) are arranged in three, and the angle between each adjacent two of said struts (222) is equal.

4. The acid and alkali resistant pressure transmitter of claim 1, wherein the mounting assembly (130) comprises a flange (131) and a bolt (132), the flange (131) is connected to the outer surface of the pressure detecting member (110), a through hole (133) is formed in the inner surface of the flange (131), and the bolt (132) is inserted into the through hole (133).

5. The acid-base resistant pressure transmitter of claim 4 wherein the first seal (140) is located between the flange (131) and the connection chamber (210), and the second seal (150) is in interference fit with the groove (260).

6. The acid and alkali resistant pressure transmitter according to claim 4, wherein a first thread groove (280) is formed on one side of the connection chamber (210), the first thread groove (280) corresponds to the through hole (133) in a one-to-one manner, and the first thread groove (280) is in threaded connection with the bolt (132).

7. An acid and base resistant pressure transmitter as claimed in claim 1, characterized in that the second inlet channel (270) is located above the first inlet channel (250).

8. The acid and base resistant pressure transmitter of claim 1, wherein the sensing mechanism (10) further comprises a support (160) and a threaded rod (170), the support (160) is connected to the other end of the pressure sensing member (110), and the threaded rod (170) is mounted on one side of the support (160).

9. The acid and alkali resistant pressure transmitter of claim 8, wherein the display mechanism (30) comprises a dial (310) and a display screen (320), the dial (310) is screwed to the threaded rod (170), and the display screen (320) is disposed on one side of the dial (310).

10. The acid-base resistant pressure transmitter of claim 9, wherein one end of the dial (310) is provided with a second thread groove (330), and the threaded rod (170) is in threaded connection with the second thread groove (330).