CN211042573U - Diaphragm type pressure transmitter - Google Patents

Abstract

The utility model relates to a pressure transmitter technical field specifically is a diaphragm type pressure transmitter, including changer body and two pressure measurement probes, the bottom of changer body is connected with the base, the capillary connection that the pressure measurement probe passes through the setting is in on the base, the capillary with pressure sensor is installed to pressure measurement probe's junction, just pressure sensor's one end stretches into in the pressure measurement probe, the sealed lid of fixedly connected with in the pressure measurement probe, sealed covering is equipped with the through-hole, sealed covering is provided with the diaphragm, sealed covering is equipped with and is used for the pressfitting the clamping ring of diaphragm, just the clamping ring with the inner wall fixed connection of sealed lid. This diaphragm type pressure transmitter is convenient for change the diaphragm, can not only prolong the life of changer body, and regularly changes the detection precision that the diaphragm can improve the changer body.

Description

Diaphragm type pressure transmitter

Technical Field

The utility model relates to a pressure transmitter technical field specifically is a diaphragm type pressure transmitter.

Background

Diaphragm pressure transmitters are a type of transmitter used to prevent the measured media from directly contacting the transmitter isolation diaphragm. The isolating membrane is in large-area contact with a medium, so that the isolating membrane is suitable for closed occasions; especially for measuring viscous or slurry media and strong corrosive liquids or media rich in particles, the sensor is not easy to block and is convenient to clean.

At present, when the existing diaphragm pressure transmitter is used, because the diaphragm is not convenient to replace, after the diaphragm is used for a long time, the elasticity of the diaphragm can be weakened and becomes loose, the service life of the transmitter is shortened, and the measurement precision of the transmitter is reduced. In view of this, we propose a diaphragm type pressure transmitter.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a diaphragm type pressure transmitter to solve the problem that proposes in the above-mentioned background art.

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

the utility model provides a diaphragm type pressure transmitter, includes changer body and two pressure measurement probes, the bottom of changer body is connected with the base, the pressure measurement probe is connected through the capillary that sets up on the base, the capillary with pressure measurement probe's junction installs pressure sensor, just pressure sensor's one end stretches into in the pressure measurement probe, the sealed lid of fixedly connected with in the pressure measurement probe, be equipped with the through-hole on the sealed lid, be provided with the diaphragm in the sealed lid, be equipped with in the sealed lid and be used for the pressfitting the clamping ring of diaphragm, just the clamping ring with the inner wall fixed connection of sealed lid.

Preferably, the transmitter body is provided with a display panel.

Preferably, the base is provided with two interfaces, and one end of the capillary tube extends into the base through the interfaces.

Preferably, be equipped with a plurality of mounting panels on the clamping ring, be equipped with the bolt on the mounting panel, the mounting panel passes through bolt threaded connection on the inner wall of sealed lid.

Preferably, the outer diameter of the sealing cover is matched with the inner diameter of the pressure measuring probe, and the sealing cover is tightly adhered to the inner wall of the pressure measuring probe.

Preferably, a soft rubber pad is arranged between the pressure ring and the diaphragm.

Compared with the prior art, the beneficial effects of the utility model are that: this diaphragm type pressure transmitter, the diaphragm is at long-time measurement process, and its elasticity can weaken and become lax, when changing the diaphragm, takes out sealed lid in the sealed lid, takes out clamping ring and diaphragm from sealed lid again to the diaphragm of renewal can not only prolong the life of changer body, and regularly changes the measuring accuracy that the diaphragm can improve the changer body, solves the problem that diaphragm type pressure transmitter is not convenient for change the diaphragm.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a schematic structural diagram of a transmitter body in the present invention;

FIG. 3 is a schematic structural view of a pressure measuring probe according to the present invention;

fig. 4 is a schematic view of the structure of the sealing cover of the present invention.

In the figure: 1. a transmitter body; 11. a base; 111. an interface; 12. a display panel; 2. a pressure measuring probe; 21. a capillary tube; 211. a pressure sensor; 22. a sealing cover; 221. a through hole; 222. a diaphragm; 23. pressing a ring; 231. mounting a plate; 232. a bolt; 233. a soft rubber cushion.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only 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.

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", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being 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.

In addition, in the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

Referring to fig. 1-4, the present invention provides a technical solution:

the utility model provides a diaphragm type pressure transmitter, including changer body 1 and two pressure measuring probe 2, the bottom of changer body 1 is connected with base 11, pressure measuring probe 2 connects on base 11 through the capillary 21 that sets up, pressure sensor 211 is installed with pressure measuring probe 2's junction to capillary 21, and in pressure sensor 211's one end stretched into pressure measuring probe 2, the sealed lid 22 of fixedly connected with in the pressure measuring probe 2, be equipped with through-hole 221 on the sealed lid 22, be provided with diaphragm 222 in the sealed lid 22, be equipped with the clamping ring 23 that is used for pressfitting diaphragm 222 in the sealed lid 22, and clamping ring 23 and the inner wall fixed connection who seals lid 22.

In this embodiment, the pressure measuring probe 2 is barrel-shaped and is made of stainless steel, which has good wear resistance and corrosion resistance and a stable structure.

Further, the transmitter body 1 is provided with a display panel 12, so that the display panel 12 can be used for displaying the pressure values detected by the two pressure measuring probes 2.

Furthermore, two connectors 111 are disposed on the base 11, and one end of the capillary 21 extends into the base 11 through the connectors 111, so that the pressure sensor 211 can be conveniently connected to the base 11 by using the capillary 21.

Specifically, be equipped with a plurality of mounting panels 231 on the clamping ring 23, be equipped with bolt 232 on the mounting panel 231, on the inner wall of the sealed lid 22 of mounting panel 231 passes through bolt 232 threaded connection, the number of mounting panel 231 is preferred 4 in this embodiment, and be the equidistant range of annular, be equipped with the screw with bolt 232 looks adaptation on the inner wall of sealed lid 22, make bolt 232 and this screw threaded connection, with clamping ring 23 with diaphragm 222 pressfitting in sealed lid 22, and when changing diaphragm 222, only need lift bolt 232 off, and take off clamping ring 23 and can take out diaphragm 222.

It should be noted that the outer diameter of the sealing cover 22 is adapted to the inner diameter of the pressure measuring probe 2, and the sealing cover 22 is tightly adhered to the inner wall of the pressure measuring probe 2, so as to increase the sealing effect between the pressure measuring probe 2 and the inner wall of the sealing cover 22, and when the sealing cover 22 is detached, the outer surface of the pressure measuring probe 2 is heated by the air heater, so that the glue is melted.

Specifically, be equipped with soft cushion 233 between clamping ring 23 and the diaphragm 222, soft cushion 233 adopts the rubber material, and this material has good wear-resisting corrosion resistance, and the texture is soft, and sealed effect is better, prevents that clamping ring 23 and diaphragm 222 contact surface from producing wearing and tearing, and further improves sealed effect.

When the diaphragm type pressure transmitter of the embodiment is used, two pressure measuring probes 2 are arranged on the transmitter body 1, the two pressure measuring probes 2 are respectively placed at different heights of the liquid level, the pressure sensed by the pressure sensor 211 on the pressure measuring probe 2 is different due to different hydraulic pressures in the vertical direction of the liquid level, so that the effect of measuring the liquid level pressure difference is realized, the elasticity of the diaphragm 222 is weakened and becomes loose in the long-time measuring process, when the diaphragm 222 is replaced, the outer surface of the pressure measuring probe 2 is heated by a hot air blower, so that the glue coated on the inner walls of the sealing cover 22 and the pressure measuring probes 2 is melted, the sealing cover 22 is taken out, then the bolt 232 connected between the pressure ring 23 and the inner wall of the sealing cover 22 is detached, the pressure ring 23 and the diaphragm 222 can be taken out from the sealing cover 22 at the same time, a new diaphragm 222 is replaced, and the, and regularly change diaphragm 222 and can improve the detection precision of changer body 1, solve diaphragm formula pressure transmitter and be not convenient for change the problem of diaphragm, be convenient for popularize and promote.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (6)

1. A diaphragm type pressure transmitter, includes changer body (1) and two pressure measurement probe (2), its characterized in that: the bottom of changer body (1) is connected with base (11), pressure measuring probe (2) are connected through capillary (21) that sets up on base (11), capillary (21) with pressure measuring probe (2) junction installs pressure sensor (211), just the one end of pressure sensor (211) stretches into in pressure measuring probe (2), the sealed lid (22) of fixedly connected with in pressure measuring probe (2), be equipped with through-hole (221) on sealed lid (22), be provided with diaphragm (222) in sealed lid (22), be equipped with in sealed lid (22) and be used for the pressfitting the clamping ring (23) of diaphragm (222), just clamping ring (23) with the inner wall fixed connection of sealed lid (22).

2. The diaphragm pressure transmitter of claim 1, wherein: the transmitter body (1) is provided with a display panel (12).

3. The diaphragm pressure transmitter of claim 1, wherein: two interfaces (111) are arranged on the base (11), and one end of the capillary tube (21) extends into the base (11) through the interfaces (111).

4. The diaphragm pressure transmitter of claim 1, wherein: be equipped with a plurality of mounting panels (231) on clamping ring (23), be equipped with bolt (232) on mounting panel (231), mounting panel (231) pass through bolt (232) threaded connection on the inner wall of sealed lid (22).

5. The diaphragm pressure transmitter of claim 1, wherein: the outer diameter of the sealing cover (22) is matched with the inner diameter of the pressure measuring probe (2), and the sealing cover (22) is tightly adhered to the inner wall of the pressure measuring probe (2).

6. The diaphragm pressure transmitter of claim 1, wherein: a soft rubber pad (233) is arranged between the pressing ring (23) and the diaphragm (222).

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