CN213363897U - Anti-freezing differential pressure type flowmeter - Google Patents

Abstract

The utility model discloses an anti-freezing differential pressure flowmeter, including changer, first ring flange, mounting disc and the pipeline body, the welding of one side of the pipeline body has the mounting disc, the pipeline body is provided with two, the outside welding of the pipeline body has first ring flange, and first ring flange presents circularly, evenly be provided with the bolt on the first ring flange, the bolt is provided with eight on the first ring flange, the one end swing joint of bolt has the second ring flange, the utility model discloses when the fluid that is full of intraductal passes through the pipeline body, the fluid will form local shrink at the orifice plate department of pipeline internal portion, thereby makes the velocity of flow increase, then will produce pressure differential around the orifice plate, the flow of fluid is big more, the pressure differential that produces around the orifice plate is big more, thereby pressure differential just can make pressure differential around the pressure-sensing ware change, the pressure-sensing ware will be the signal conversion to in the changer, therefore, the purpose of accurate detection is achieved.

Description

Anti-freezing differential pressure type flowmeter

Technical Field

The utility model relates to a flowmeter technical field specifically is a type differential pressure formula flowmeter prevents frostbite.

Background

The standard orifice plate is matched with a high-range-ratio differential pressure flow device formed by a multi-parameter differential pressure transmitter (or a differential pressure transmitter, a temperature transmitter and a pressure transmitter), can measure the flow of gas, steam, liquid and natural gas, is widely applied to process control and measurement in the fields of petroleum, chemical industry, metallurgy, electric power, heat supply, water supply and the like, but the existing anti-freezing differential pressure flow meter has many problems or defects:

firstly, the existing anti-freezing differential pressure type flowmeter is not easy to replace the internal structure, so that the internal structure is damaged and cannot be replaced;

secondly, the existing anti-freezing differential pressure type flowmeter is not sensitive enough in detection and not strong in practicability;

thirdly, the existing antifreezing differential pressure type flowmeter is easy to use in the environment with lower temperature, and the practicability is not strong.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a type differential pressure flowmeter prevents frostbite can not change, detect sensitive inadequately and can not use in the lower environment of temperature in order to solve the inner structure 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 an anti-freezing type differential pressure flowmeter, includes changer, first ring flange, mounting disc and the pipeline body, the mounting disc has been welded to one side of the pipeline body, the pipeline body is provided with two, the outside welding of the pipeline body has first ring flange, and first ring flange presents circularly, evenly be provided with the bolt on the first ring flange, the bolt is provided with eight on first ring flange, the one end swing joint of bolt has the second ring flange, the one end swing joint who is close to the second ring flange on the bolt has the nut.

Preferably, the inside of the pipeline body is provided with a mounting groove, a pore plate is embedded in the mounting groove, and the pore plate plays a role in hijacking flow.

Preferably, a first hole is formed in the side wall of the interior of the pipeline body, a double-layer pipeline is inserted into the first hole, and the double-layer pipeline achieves the purpose of flow guiding.

Preferably, a valve is arranged on the double-layer pipeline, an inverter is arranged at the top of the double-layer pipeline, a transmitter is fixedly mounted at one end of the inverter, and the valve achieves the purpose of controlling flow.

Preferably, the inside of dc-to-ac converter is provided with the cavity, and the central point in the cavity puts to inlay has pressure sensor, and the inside of cavity has been inserted to the one end of double-deck pipeline, and pressure sensor has played the purpose of detection pressure.

Preferably, an antifreeze box is arranged at the bottom of the double-layer pipeline close to the inverter, an antifreeze body is stored in the antifreeze box, a second hole is formed in the double-layer pipeline outside the antifreeze box, and the antifreeze body achieves an antifreeze purpose.

Compared with the prior art, the beneficial effects of the utility model are that: the anti-freezing differential pressure type flowmeter is reasonable in structure and has the following advantages:

(1) through being provided with the bolt, first ring flange, the second ring flange, the pipeline body and nut have realized the purpose of changing to inside, the inside damage of current device can't be changed, therefore, during the use, during the pipeline was installed to the device, when the orifice plate was corroded, can lead to the testing effect variation, consequently, through rotating the nut, make the bolt pull down, then through the pulling pipeline body, will make two pipeline bodies part, thereby realized changing the orifice plate of inside, realized changing convenient purpose to inside.

(2) Through being provided with double-deck pipeline, cavity and pressure sensors have realized detecting convenient accurate purpose, current device detects the precision inadequately, therefore, in the use, when being full of intraductal fluid when the pipeline body, the fluid will form local shrink in the orifice plate department of the internal portion of pipeline, thereby make the velocity of flow increase, then will produce pressure differential around the orifice plate, fluidic flow is big more, the pressure differential that produces just is big more around the orifice plate, thereby pressure differential just can make pressure sensors's pressure differential change around, pressure sensors will be during signal conversion becomes the changer, thereby realized detecting accurate purpose.

(3) Through being provided with the antifreeze box, frost-proof purpose has been realized to second hole and antifreeze body, current device is not frostproofing, lead to the device can lead to the inside water of pipeline to freeze when using winter, thereby lead to unable the detection, consequently, the inside packing at the antifreeze box has the antifreeze body, be provided with the second hole through the outside at double-deck pipeline, it is double-deck pipeline to have double-deck pipeline, the antifreeze body will flow in double-deck pipeline's skin, freezing point through the antifreeze body is low, just make the temperature of the inside liquid of double-deck pipeline can not fall below freezing point, thereby realized preventing that the inside liquid of double-deck pipeline from freezing, thereby prevent that the flowmeter is out of work.

Drawings

Fig. 1 is a front view of the external structure of the present invention;

FIG. 2 is a side view of the external structure of the present invention;

FIG. 3 is a schematic view of the internal structure of the pipeline body of the present invention;

fig. 4 is a schematic side view of the internal structure of the inverter of the present invention;

fig. 5 is a schematic view of the front view internal structure of the inverter of the present invention;

fig. 6 is a schematic diagram of the internal structure of the antifreeze box of the present invention.

In the figure: 1. a transmitter; 2. an antifreeze box; 3. a double-layer pipeline; 4. a valve; 5. a bolt; 6. a first flange plate; 7. mounting a disc; 8. a second flange plate; 9. a pipe body; 10. a nut; 11. an inverter; 12. an orifice plate; 13. a first hole; 14. mounting grooves; 15. a cavity; 16. a pressure sensor; 17. a second hole; 18. and (4) an antifreezing solution body.

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.

Referring to fig. 1-6, the present invention provides an embodiment: an anti-freezing differential pressure flowmeter comprises a transmitter 1, a first flange plate 6, mounting plates 7 and a pipeline body 9, wherein the mounting plates 7 are welded on one side of the pipeline body 9, the number of the pipeline body 9 is two, the first flange plate 6 is welded on the outer portion of the pipeline body 9, the first flange plate 6 is circular, bolts 5 are uniformly arranged on the first flange plate 6, eight bolts 5 are arranged on the first flange plate 6, one end of each bolt 5 is movably connected with a second flange plate 8, and one end, close to the second flange plate 8, of each bolt 5 is movably connected with a nut 10;

an installation groove 14 is formed in the pipeline body 9, and a pore plate 12 is embedded in the installation groove 14;

when the device is used, the device is installed in a pipeline, when the pore plate 12 is corroded, the detection effect is poor, therefore, the bolt 5 is detached by rotating the nut 10, and then the two pipeline bodies 9 are separated by pulling the pipeline bodies 9, so that the pore plate 12 in the pipeline is replaced, and the aim of conveniently replacing the interior is fulfilled;

a first hole 13 is formed in the side wall of the inner part of the pipeline body 9, and the double-layer pipeline 3 is inserted into the first hole 13;

a valve 4 is arranged on the double-layer pipeline 3, an inverter 11 is arranged at the top of the double-layer pipeline 3, and a transmitter 1 is fixedly arranged at one end of the inverter 11;

a cavity 15 is arranged inside the inverter 11, a pressure sensor 16 is embedded in the center of the cavity 15, and one end of the double-layer pipeline 3 is inserted into the cavity 15;

when the pressure sensor is used, when fluid filled in a pipe passes through the pipeline body 9, the fluid can form local contraction at the orifice plate 12 inside the pipeline body 9, so that the flow speed is increased, pressure difference can be generated before and after the orifice plate 12, the larger the flow of the fluid is, the larger the pressure difference is generated before and after the orifice plate 12, the pressure difference can change the pressure difference before and after the pressure sensor 16, the pressure sensor 16 can convert signals into the transmitter 1, and the purpose of accurate detection is achieved;

an antifreeze box 2 is arranged at the bottom of the double-layer pipeline 3 close to the inverter 11, an antifreeze body 18 is stored in the antifreeze box 2, and a second hole 17 is formed in the double-layer pipeline 3 outside the antifreeze box 2;

during the use, it has anti-icing fluid body 18 to fill in the inside of antifreeze box 2, is provided with second hole 17 through the outside at double-deck pipeline 3, has double-deck pipeline 3 to be double-deck, and anti-icing fluid body 18 will flow into double-deck pipeline 3's skin, and freezing point through anti-icing fluid body 18 is low, just makes the temperature of the inside liquid of double-deck pipeline 3 can not fall below freezing point to realized preventing that the inside liquid of double-deck pipeline 3 from freezing, thereby prevent that the flowmeter is out of work.

The working principle is as follows: when the device is used, the device is installed in a pipeline, when the pore plate 12 is corroded, the detection effect is poor, therefore, the bolt 5 is detached by rotating the nut 10, then the two pipeline bodies 9 are separated by pulling the pipeline bodies 9, the inner pore plate 12 is replaced, the purpose of convenient replacement of the inner part is realized, when fluid filled in the pipeline passes through the pipeline bodies 9, the fluid forms local contraction at the pore plate 12 in the pipeline bodies 9, the flow rate is increased, then pressure difference is generated in front of and behind the pore plate 12, the larger the flow of the fluid is, the larger the pressure difference is generated in front of and behind the pore plate 12, the pressure difference can change the front-back pressure difference of the pressure sensor 16, the pressure sensor 16 can convert signals into the transmitter 1, the purpose of accurate detection is realized, the antifreeze liquid box 2 is filled with the antifreeze liquid body 18, through being provided with second hole 17 in double-deck pipeline 3's outside, there is double-deck pipeline 3 to be the bilayer, and anti-freezing solution body 18 will flow in double-deck pipeline 3's skin, and freezing point through anti-freezing solution body 18 is low, just makes the temperature of the inside liquid of double-deck pipeline 3 can not fall below freezing point to realized preventing that the inside liquid of double-deck pipeline 3 from freezing, thereby prevent that the flowmeter is out of work.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (6)

1. The utility model provides an anti-freezing type differential pressure flowmeter, includes changer (1), first ring flange (6), mounting disc (7) and the pipeline body (9), its characterized in that: the welding of one side of the pipeline body (9) has mounting disc (7), the pipeline body (9) is provided with two, the outside welding of the pipeline body (9) has first ring flange (6), and first ring flange (6) present circularly, evenly be provided with bolt (5) on first ring flange (6), bolt (5) are provided with eight on first ring flange (6), the one end swing joint of bolt (5) has second ring flange (8), the one end swing joint that is close to second ring flange (8) on bolt (5) has nut (10).

2. The antifreeze differential pressure flowmeter of claim 1, wherein: the pipeline is characterized in that a mounting groove (14) is formed in the pipeline body (9), and a hole plate (12) is embedded in the mounting groove (14).

3. The antifreeze differential pressure flowmeter of claim 1, wherein: the side wall of the interior of the pipeline body (9) is provided with a first hole (13), and the double-layer pipeline (3) is inserted into the first hole (13).

4. The antifreeze differential pressure flowmeter of claim 3, wherein: the double-layer pipeline (3) is provided with a valve (4), the top of the double-layer pipeline (3) is provided with an inverter (11), and one end of the inverter (11) is fixedly provided with a transmitter (1).

5. The antifreeze differential pressure flowmeter of claim 4, wherein: a cavity (15) is formed in the inverter (11), a pressure sensor (16) is embedded in the center of the interior of the cavity (15), and one end of the double-layer pipeline (3) is inserted into the interior of the cavity (15).

6. The antifreeze differential pressure flowmeter of claim 3, wherein: an antifreezing solution box (2) is arranged at the bottom of the double-layer pipeline (3) close to the inverter (11), an antifreezing solution body (18) is stored in the antifreezing solution box (2), and a second hole (17) is formed in the double-layer pipeline (3) outside the antifreezing solution box (2).

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