CN221223879U - Venturi flowmeter - Google Patents

Abstract

The utility model relates to the technical field of flow detection equipment and discloses a venturi flowmeter, which comprises a first pipeline, a second pipeline, a detection device and a fixed disc, wherein the fixed disc is fixedly connected to the surface of the first pipeline, one end of the first pipeline, which is close to the fixed disc, is fixedly connected with an access pipe, a plurality of movable grooves are formed in the fixed disc, a second spring is fixedly connected to the inside of the movable grooves, one end of the second spring, which is far away from the movable grooves, is fixedly connected with a movable rod, the top of the movable rod is fixedly connected with a fixed plate, one end of the first pipeline, which is far away from the fixed disc, is fixedly connected with a fixed port, the inside of the fixed port is fixedly connected with a first sealing ring, a plurality of bayonets are formed in the surface of the first sealing ring, and extend to the inner side of the first sealing ring, and one end of the second pipeline, which is close to the fixed port, is provided with the advantages of preventing triamine tail gas crystallization from reducing detection precision, being convenient to detach and install, being capable of fixedly sealing external pipelines with different sizes, and the like.

Description

Venturi flowmeter

Technical Field

The utility model relates to the technical field of flow detection equipment, in particular to a venturi flowmeter.

Background

Along with the gradual development of industrialization and the popularization of automobiles, the emission of the triamine tail gas is increasingly serious, when the triamine tail gas is used, the triamine tail gas contains high-concentration carbon dioxide and ammonia, the co-production of sodium carbonate, ammonium bicarbonate and urea is more applied at present, and when the triamine tail gas is utilized, a venturi flowmeter is generally required to be utilized for detecting the flow condition of the triamine tail gas so as to formulate a related scheme for utilization.

Publication number CN115900845A, a balanced venturi meter, comprising: the pipe body assembly comprises a first pipe body and a second pipe body, a first pressure taking hole communicated with the internal pipe cavity of the first pipe body is formed in the first pipe body, a throttle plate is arranged between the first pipe body and the second pipe body, the first pipe body and the second pipe body are respectively and fixedly connected with two opposite sides of the throttle plate, the throttle plate is provided with a first through hole and a plurality of second through holes, the first through hole is arranged in the center of the throttle plate, the second through holes are circumferentially arranged along the first through hole, the first through hole and the second through holes are communicated with the internal pipe cavity of the first pipe body and the internal pipe cavity of the second pipe body, the throttle plate is provided with a second pressure taking hole communicated with the first through hole, and the device improves measurement accuracy and stability by reducing pressure loss.

Disclosure of Invention

Aiming at the defects that in the prior art, triamine tail gas is easy to crystallize, crystals are easy to be generated at a single flange film joint part during measurement of a venturi flowmeter, flow measurement is affected, flow is inaccurate, certain influence is caused on process operation, and when an external pipeline is used for detecting triamine tail gas, a flange plate cannot be connected with external pipelines of different sizes, so that daily use of a user is inconvenient, the utility model provides the venturi flowmeter, which has the advantages of preventing the crystallization of the triamine tail gas from reducing the detection precision, being convenient to detach and install, being capable of fixing and sealing the external pipelines of different sizes and the like.

In order to achieve the above purpose, the present utility model provides the following technical solutions: a venturi flow meter, comprising: the device comprises a first pipeline, a fixed port, a first sealing ring, a bayonet, a second pipeline, a connecting port, a through hole, a circulation port, a first spring, a clamping block, a detection device, a connecting rod, a first detection ring, a second detection ring, an access pipe, a threaded strip, a second sealing ring, a fixed disc, a movable groove, a second spring, a movable rod and a fixed plate.

The positions and connection relations of the structures are as follows: the utility model provides a venturi flowmeter, including first pipeline, second pipeline, detection device and fixed disk, the fixed surface of first pipeline is connected with the fixed disk, the one end fixedly connected with access pipe that the first pipeline is close to the fixed disk, a plurality of movable groove has been seted up to the fixed disk inside, the inside fixedly connected with second spring of movable groove, the one end fixedly connected with movable rod that the movable groove was kept away from to the second spring, the top fixedly connected with fixed plate of movable rod, when external pipeline is connected with the device and is carried out flow measurement, cup joint external pipeline on first pipeline and remove to the fixed disk through the access pipe, a plurality of fixed plate that sets up on the fixed disk is done the motion of keeping away from external pipeline to the movable groove through the movable rod under the effect of the thrust that external pipeline gave, fixed plate and movable rod remove and give second spring pressure, the elastic deformation that the second spring elastic deformation recovered produced is reverse to be used to the movable rod and drive baffle removes and extrudees fixedly towards the direction of external pipeline, make the device can fix and detect the flow condition to the external pipeline of arbitrary size, increase the suitability of device.

Preferably, the one end that the fixed plate is close to the access pipe sets up to circular-arc, and a plurality of fixed plate is annular evenly distributed, and the one end that the fixed plate is close to the access pipe sets up to circular-arc shape and follows the shape curve of external pipeline for a plurality of fixed plate can closely laminate mutually with external pipeline when carrying out the centre gripping fixedly to external pipeline, prevents that the fixed plate from appearing the gap when the centre gripping is fixed with external pipeline when first pipeline is connected through the access pipe and leading to fixed incomplete or even appear leaking the condition that the leakproofness reduces.

Preferably, the access pipe is kept away from the one end fixedly connected with screw thread strip of first pipeline, screw thread strip material is high elasticity polymer material, screw thread strip material is rubber, the one end fixedly connected with second sealing ring that the access pipe is close to the fixed disk, screw thread strip that the access pipe department set up gives screw thread strip pressure and makes screw thread strip elastic deformation push down when being connected with external pipeline, then screw thread strip elastic deformation resumes the original state and extrudees external pipeline's inner wall after external pipeline is connected with the access pipe, screw thread strip increases the frictional force that access pipe and external pipeline makes its connection inseparabler.

Preferably, the first pipeline top is provided with detection device, detection device bottom fixedly connected with two connecting rods, be close to the first detection ring of connecting rod bottom fixedly connected with of first pipeline, first detection ring and first pipeline fixed connection, the connecting rod bottom fixedly connected with second detection ring of being close to the second pipeline, second detection ring and second pipeline fixed connection, the connecting rod length of being close to first pipeline is less than the connecting rod that is close to the second pipeline, detection device is used for detecting the triamine tail gas flow condition of external pipeline transportation after the external pipeline of device, first detection ring and second detection ring are used for circulation mouth and first pipeline between triamine tail gas flow produced static pressure difference detect respectively.

Preferably, one end fixedly connected with fixed orifices of fixed disk is kept away from to first pipeline, and fixed orifices inside fixedly connected with first sealing ring, a plurality of bayonet socket has been seted up on the surface of first sealing ring, and the bayonet socket extends to the inboard of first sealing ring, and first sealing ring is used for sealing when first pipeline and second pipeline connection prevents that triamine tail gas from flowing and leaking, and the bayonet socket is used for fixing between first pipeline and the second pipeline with the fixture block matched with, guarantees the normal operating of device.

Preferably, one end fixedly connected with circulation mouth that the second pipeline is close to the fixed port, the outside of circulation mouth is provided with the connector, the connector with first sealing ring looks adaptation, connector and second pipeline fixed connection, a plurality of through-hole has been seted up on the connector surface, the surface fixedly connected with of circulation mouth has a plurality of first spring, first spring top fixedly connected with and the fixture block of bayonet socket looks adaptation, the fixture block passes through-hole and first spring and circulation mouth swing joint, when connecting first pipeline and second pipeline, the fixture block with the second pipeline staggers mutually with the bayonet socket in the first sealing ring, be connected the connector later with the fixed port, the fixture block is given the effect of pressure with the fixed port and is moved towards the direction of circulation mouth through the through-hole, first spring takes place elastic deformation compression, first sealing ring cup joints outside the circulation mouth, at this moment with the second pipeline rotate the fixture block to the corresponding position of bayonet socket, the fixture block moves towards the bayonet socket inside under the elastic deformation recovery produces elastic force and carries out the joint, for the plane running-in for plug-in between first pipeline and the second pipeline and non-flange connection.

Advantageous effects

1. This venturi flowmeter, through a venturi flowmeter, including first pipeline, second pipeline, detection device and fixed disk, the fixed surface of first pipeline is connected with the fixed disk, and the one end fixedly connected with that first pipeline is close to the fixed disk inserts the pipe, and a plurality of movable groove has been seted up to the fixed disk inside, and the inside fixedly connected with second spring of movable groove, the one end fixedly connected with movable rod of movable groove is kept away from to the second spring, the top fixedly connected with fixed plate of movable rod, makes the device can fix the external pipeline of arbitrary size and detect the flow condition, increases the suitability of device, makes the user dismantle all extremely convenient after detecting installation and detection, the user daily use of being convenient for.

2. This venturi flowmeter keeps away from one end fixed surface who first pipeline through the access pipe and is connected with the screw thread strip, and the screw thread strip material is high elasticity macromolecular material, and the screw thread strip material is rubber, and the one end fixedly connected with second sealing ring that the access pipe is close to the fixed disk, screw thread strip increase access pipe make its connection inseparabler with external pipeline's frictional force, and screw thread strip and second sealing ring cooperation form the enclosure space in the junction of access pipe and external pipeline simultaneously, and hoisting device detects the leakproofness of flow condition at external pipeline.

3. This venturi flowmeter, one end fixedly connected with circulation mouth that is close to the fixed port through the second pipeline, the outside of circulation mouth is provided with the connector, connector and second pipeline fixed connection, a plurality of through-hole has been seted up on the connector surface, the surface fixedly connected with of circulation mouth is a plurality of first spring, first spring top fixedly connected with and the fixture block of bayonet socket looks adaptation, the fixture block passes through-hole and first spring and circulation mouth swing joint for be the plane running-in of plug-in running-in but not flange joint between first pipeline and the second pipeline, prevent that triamine tail gas from producing the crystallization thing between first pipeline and second pipeline, influence flow measurement, lead to the flow inaccurate, cause certain influence for the technology operation, guarantee device measuring precision, the user of being convenient for daily use.

Drawings

FIG. 1 is a schematic view of the appearance of a venturi meter according to the present utility model;

FIG. 2 is a schematic view of a first conduit structure of a venturi meter according to the present utility model;

FIG. 3 is a schematic view of a second conduit structure of a venturi meter according to the present utility model;

FIG. 4 is a schematic side view of a venturi flow meter of the present utility model;

Fig. 5 is a schematic view of the structure of a fixed disk of a venturi flowmeter according to the present utility model.

In the figure: 1. a first pipe; 10. a fixed port; 11. a first seal ring; 110. a bayonet; 2. a second pipe; 20. a connection port; 200. a through hole; 21. a flow port; 22. a first spring; 23. a clamping block; 3. a detection device; 30. a connecting rod; 31. a first detection ring; 32. a second detection ring; 4. an access tube; 40. a thread strip; 41. a second seal ring; 5. a fixed plate; 50. a movable groove; 51. a second spring; 52. a movable rod; 53. and a fixing plate.

Description of the embodiments

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Examples

Referring to fig. 1-5, a venturi flowmeter, including a first pipeline 1, a second pipeline 2, a detection device 3 and a fixed disk 5, the fixed disk 5 is fixedly connected to the surface of the first pipeline 1, one end of the first pipeline 1 close to the fixed disk 5 is fixedly connected with an access pipe 4, a plurality of movable grooves 50 are formed in the fixed disk 5, a second spring 51 is fixedly connected to the inside of the movable grooves 50, one end of the second spring 51 away from the movable grooves 50 is fixedly connected with a movable rod 52, the top of the movable rod 52 is fixedly connected with a fixed plate 53, when the external pipeline is connected with the device for measuring flow, the external pipeline is sleeved on the first pipeline 1 through the access pipe 4 and moves to the fixed disk 5, a plurality of fixed plates 53 arranged on the fixed disk 5 move away from the external pipeline through the movable rod 52 under the action of pushing force given by the external pipeline, the fixed plate 53 and the movable rod 52 move to give the pressure to the second spring 51, the elastic deformation generated by compression under the action of the pressure, the elastic force generated by elastic deformation of the second spring 51 acts on the movable rod 52 reversely and drives the movable rod 52 to move towards the direction of the movable pipeline, the movable rod 52 is convenient for the detection device to be installed and removed by the user, and the device can be conveniently and installed by the user for measuring the external pipeline is convenient for measuring the flow.

The one end that fixed plate 53 is close to access pipe 4 sets up to circular-arc, a plurality of fixed plate 53 is annular evenly distributed, the one end that fixed plate 53 is close to access pipe 4 sets up to circular-arc and follows the shape curve of external pipeline for a plurality of fixed plate 53 can closely laminate with external pipeline when carrying out the centre gripping fixedly to external pipeline, prevent that fixed plate 53 and external pipeline from appearing the gap when the centre gripping is fixed through access pipe 4 when first pipeline 1 is connected with external pipeline and leading to the incomplete condition that even leak tightness reduces appears, guarantee the normal operating of device.

Examples

Referring to fig. 1-4, further, on the basis of the first embodiment, a threaded strip 40 is fixedly connected to a surface of an end of the access pipe 4, which is far away from the first pipe 1, the threaded strip 40 is made of a high-elasticity polymer material, the threaded strip 40 is made of rubber, a second sealing ring 41 is fixedly connected to an end of the access pipe 4, which is close to the fixed disc 5, the threaded strip 40 is arranged at the access pipe 4, when the external pipe is connected with the external pipe, the threaded strip 40 is pressed by giving pressure to the inner wall of the external pipe to enable the threaded strip 40 to elastically deform downwards, then after the external pipe is connected with the access pipe 4, the threaded strip 40 elastically deforms to restore to the original shape to squeeze the inner wall of the external pipe, the friction force between the access pipe 4 and the external pipe is increased to enable the connection to be tighter, meanwhile, the threaded strip 40 and the second sealing ring 41 are matched at the connection position of the access pipe 4 and the external pipe to form a closed space, and the tightness of the device for detecting flow conditions in the external pipe is improved.

The device comprises a first pipeline 1, a detection device 3, two connecting rods 30 are fixedly connected to the top of the first pipeline 1, a first detection ring 31 is fixedly connected to the bottom of the connecting rod 30, which is close to the first pipeline 1, a second detection ring 32 is fixedly connected to the bottom of the connecting rod 30, which is close to the second pipeline 2, the second detection ring 32 is fixedly connected with the second pipeline 2, the length of the connecting rod 30, which is close to the first pipeline 1, is smaller than that of the connecting rod 30, which is close to the second pipeline 2, the detection device 3 is used for detecting the flow condition of the triamine tail gas transported by the external pipeline after the device is externally connected with the pipeline, the first detection ring 31 and the second detection ring 32 are respectively used for detecting static pressure difference generated by the flow of the triamine tail gas between a circulation port 21 and the first pipeline 1, and the larger the static pressure difference is larger, so as to detect the flow of the triamine tail gas.

Examples

Referring to fig. 1-5, further, on the basis of the second embodiment, one end of the first pipe 1 far away from the fixed disc 5 is fixedly connected with a fixed port 10, a first sealing ring 11 is fixedly connected inside the fixed port 10, a plurality of bayonets 110 are formed on the surface of the first sealing ring 11, the bayonets 110 extend to the inner side of the first sealing ring 11, the first sealing ring 11 is used for sealing to prevent the flow leakage of the triamine tail gas when the first pipe 1 is connected with the second pipe 2, and the bayonets 110 are used for being matched with a clamping block 23 to fix the first pipe 1 and the second pipe 2, so that the normal operation of the device is ensured.

The second pipeline 2 is fixedly connected with a circulation port 21 near one end of the fixed port 10, a connecting port 20 is arranged on the outer side of the circulation port 21, the connecting port 20 is matched with the first sealing ring 11, the connecting port 20 is fixedly connected with the second pipeline 2, a plurality of through holes 200 are formed on the surface of the connecting port 20, a plurality of first springs 22 are fixedly connected on the surface of the circulation port 21, a clamping block 23 matched with the bayonet 110 is fixedly connected on the top of the first springs 22, the clamping block 23 is movably connected with the circulation port 21 through the through holes 200 and the first springs 22, when the first pipeline 1 and the second pipeline 2 are connected, the clamping block 23 of the second pipeline 2 is staggered with the bayonet 110 in the first sealing ring 11, and then the connecting port 20 is connected with the fixed port 10, the fixture block 23 moves towards the direction of the circulation port 21 through the through hole 200 under the action of the pressure given by the fixed port 10, the first spring 22 is elastically deformed and compressed, the first sealing ring 11 is sleeved outside the circulation port 21, at the moment, the fixture block 23 is rotated to the corresponding position of the bayonet 110 by rotating the second pipeline 2, the fixture block 23 moves towards the inside of the bayonet 110 under the action of elastic force generated by elastic deformation recovery of the first spring 22 to be clamped, so that the first pipeline 1 and the second pipeline 2 are in a plane running-in mode of being in a plug-in running-in mode instead of being in a flange connection mode, the fact that triamine tail gas generates crystals between the first pipeline 1 and the second pipeline 2 is prevented, flow measurement is influenced, flow inaccuracy is caused, certain influence is caused to process operation, the measuring precision of the device is guaranteed, and the device is convenient for a user to use daily.

Working principle: the clamping block 23 of the second pipeline 2 is staggered with the bayonet 110 in the first sealing ring 11, then the connecting port 20 is connected with the fixed port 10, the clamping block 23 moves towards the direction of the circulation port 21 through the through hole 200 under the action of pressure given by the fixed port 10, the first spring 22 is elastically deformed and compressed, the first sealing ring 11 is sleeved outside the circulation port 21, at the moment, the clamping block 23 rotates to the corresponding position of the bayonet 110 by rotating the second pipeline 2, the clamping block 23 moves towards the inside of the bayonet 110 under the action of elastic force generated by elastic deformation recovery of the first spring 22, the first pipeline 1 and the second pipeline 2 are clamped, the threaded strip 40 arranged at the position of the connecting pipe 4 is pressed downwards by the pressure given by the threaded strip 40 to the inner wall of the external pipeline when the external pipeline is connected with the external pipeline, then the external pipeline is elastically deformed and restored to the original shape, the threaded strip 40 is connected with the inner wall of the external pipeline more tightly by the friction force of the external pipeline, the fixed plate 53 arranged on the fixed disk 5 moves towards the bayonet 110 under the action of elastic force generated by elastic recovery of the first spring 22, the fixed plate 53 moves towards the second pipeline 52, the elastic deformation can be driven by the elastic force generated by the elastic compression device 52, and the elastic deformation of the fixed plate 52 moves towards the fixed plate 51, and the external pipeline is deformed towards the direction of the fixed plate 52 is elastically, and the fixed plate is deformed towards the fixed plate 52 is elastically, the fixed plate is deformed by the fixed plate is moved towards the fixed plate is moved.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. The utility model provides a venturi flowmeter, includes first pipeline (1), second pipeline (2), detection device (3) and fixed disk (5), its characterized in that: the surface fixedly connected with fixed disk (5) of first pipeline (1), the one end fixedly connected with access pipe (4) that first pipeline (1) is close to fixed disk (5), a plurality of movable groove (50) have been seted up to fixed disk (5) inside, the inside fixedly connected with second spring (51) of movable groove (50), the one end fixedly connected with movable rod (52) that movable groove (50) was kept away from to second spring (51), the top fixedly connected with fixed plate (53) of movable rod (52).

2. A venturi flow meter according to claim 1, wherein: one end of the fixing plate (53) close to the access pipe (4) is arranged in an arc shape, and a plurality of fixing plates (53) are uniformly distributed in a ring shape.

3. A venturi flow meter according to claim 1, wherein: one end surface of the access pipe (4) far away from the first pipeline (1) is fixedly connected with a threaded strip (40), and one end of the access pipe (4) close to the fixed disc (5) is fixedly connected with a second sealing ring (41).

4. A venturi flow meter according to claim 3, wherein: the utility model discloses a pipeline detection device, including first pipeline (1), connecting rod (30) and connecting rod (30) of being close to first pipeline (1), detection device (3) top is provided with detection device (3), two connecting rods (30) of detection device (3) bottom fixedly connected with, connecting rod (30) bottom fixedly connected with first detection ring (31) and first pipeline (1) fixed connection, connecting rod (30) bottom fixedly connected with second detection ring (32) that is close to second pipeline (2), second detection ring (32) and second pipeline (2) fixed connection, connecting rod (30) length that is close to first pipeline (1) is less than connecting rod (30) that is close to second pipeline (2).

5. A venturi flow meter according to claim 4, wherein: one end of the first pipeline (1) away from the fixed disc (5) is fixedly connected with a fixed port (10), a first sealing ring (11) is fixedly connected inside the fixed port (10), a plurality of bayonets (110) are formed in the surface of the first sealing ring (11), and the bayonets (110) extend to the inner side of the first sealing ring (11).

6. A venturi flow meter according to claim 5, wherein: one end fixedly connected with circulation mouth (21) that second pipeline (2) is close to fixed port (10), the outside of circulation mouth (21) is provided with connector (20), connector (20) with first sealing ring (11) looks adaptation, connector (20) and second pipeline (2) fixed connection, a plurality of through-hole (200) have been seted up on connector (20) surface, the surface fixedly connected with of circulation mouth (21) a plurality of first spring (22), first spring (22) top fixedly connected with fixture block (23) with bayonet socket (110) looks adaptation, fixture block (23) are through-hole (200) and first spring (22) and circulation mouth (21) swing joint.