CN210922720U - High-precision differential pressure flow sensor - Google Patents

High-precision differential pressure flow sensor Download PDF

Info

Publication number
CN210922720U
CN210922720U CN202020018539.0U CN202020018539U CN210922720U CN 210922720 U CN210922720 U CN 210922720U CN 202020018539 U CN202020018539 U CN 202020018539U CN 210922720 U CN210922720 U CN 210922720U
Authority
CN
China
Prior art keywords
pressure
pipe
flow sensor
rubber
differential pressure
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202020018539.0U
Other languages
Chinese (zh)
Inventor
李宗锋
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jiujiang Siyuan Software Co ltd
Original Assignee
Jiujiang Siyuan Software Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Jiujiang Siyuan Software Co ltd filed Critical Jiujiang Siyuan Software Co ltd
Priority to CN202020018539.0U priority Critical patent/CN210922720U/en
Application granted granted Critical
Publication of CN210922720U publication Critical patent/CN210922720U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The utility model discloses a high-precision differential pressure flow sensor, which comprises a valve body, a fixed shell, a high-pressure-taking port, a low-pressure-taking port, a pressure difference cone, a low-pressure eduction tube, an installation connecting tube, a pressure difference transmitter and a display screen, wherein the fixed shell is arranged at the top end of the valve body, the installation connecting tube is arranged, the top end of the installation connecting tube is connected with the pressure difference transmitter, when in use, the installation connecting tube is inserted into the fixed shell to be connected with the high-pressure-taking port and the low-pressure-taking port, the installation connecting tube is clamped and fixed by a fixed clamp at two sides of the inner action of the fixed shell, the connection between the pressure difference transmitter and the valve body can be completed, the top end of the fixed shell is provided with a tightening screw tube and a tightening rubber, after the installation connecting tube is inserted into the fixed shell, the tightening rubber is pressed by rotating the tightening screw, and sealing the connection part of the installation connecting pipe.

Description

High-precision differential pressure flow sensor
Technical Field
The utility model relates to a pressure differential flow sensor technical field, concretely relates to high accuracy differential pressure flow sensor.
Background
A high-precision differential pressure flow sensor is an instrument for measuring flow, and is characterized by that it utilizes the principle that there is a certain relationship between pressure difference produced when the fluid is passed through the throttling device and flow rate to implement flow measurement by means of measuring pressure difference.
When the differential flow sensor in the prior art is installed, the differential pressure transmitter needs to be connected with the high-pressure taking port and the low-pressure taking port of the valve body, the air pipe needs to be locked and fixed, the operation is complex, and the installation is inconvenient.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
In order to overcome prior art not enough, provide a high accuracy differential pressure flow sensor now, solved prior art's differential flow sensor when the installation need be connected pressure transmitter and the high pressure mouth and the low pressure mouth of getting of valve body, and need lock fixedly to the trachea, complex operation is not convenient for carry out the problem of installing.
(II) technical scheme
The utility model discloses a following technical scheme realizes: the utility model provides a high accuracy differential pressure flow sensor, including valve body, set casing and installation takeover, valve body top middle part is provided with high pressure and gets the pressure port and get the pressure port with the low pressure, the pressure port bottom is got to the low pressure and welds each other with the low pressure stand-off pipe, the low pressure stand-off pipe right side welds each other with the pressure differential cone, set casing cup joints outside getting the pressure port and the low pressure and getting the pressure port, and set casing bottom welds each other with the valve body, set casing top and installation takeover lock each other, install the pressure differential transmitter on installation takeover top, the pressure differential transmitter front end embedding has the display screen, the set casing comprises outer tube, mounting fixture, screwed joint, compel screwed pipe and compel tight rubber, mounting fixture is all installed to outer tube inside left side both sides, screwed joint is installed on the outer tube top, screwed joint inside embedding has compel tight rubber, the tightening screw pipe is sleeved on the outer side of the tightening rubber, the bottom end of the tightening screw pipe is in threaded connection with the threaded connector, and the bottom end of the outer pipe is welded with the valve body.
Further, the installation is taken over and is become by intubate, fastening screw thread, recess, connecting pipe and rubber circle, intubate left and right sides bottom is provided with fastening screw thread, and both sides bottom sets up flutedly around the intubate, the connecting pipe bottom is provided with two connecting pipes, and has cup jointed the rubber circle bottom the connecting pipe, the connecting pipe bottom is got with high pressure respectively through the rubber circle and is pressed the mouth and get with the low pressure and press the mouth to peg graft, intubate bottom is pegged graft each other with the outer tube, and the outer tube inboard presss from both sides tightly fixedly through mounting fixture and intubate.
Further, mounting fixture comprises backup pad, fixed rotating shaft, splint, swash plate and supporting spring, the backup pad middle part rotates along fixed rotating shaft, splint and swash plate have been welded respectively at both ends about the backup pad inboard, backup pad left side bottom carries out elastic connection through supporting spring and outer tube, both ends peg graft each other with the outer tube respectively around the fixed rotating shaft.
Further, the packing rubber is in a circular tube shape and gradually shrinks from bottom to top.
Furthermore, the top end of the inner wall of the tightening screw pipe is attached to the tightening rubber, and the outer side of the tightening screw pipe is in a regular hexagonal shape.
Further, the splint inner wall is provided with anti-skidding line, and the fastening screw thread laminating of line and intubate left and right sides.
Furthermore, the surface of the inclined plate is smooth and inclined at an angle of thirty degrees from top to bottom.
Furthermore, when the supporting spring extends, the inner side of the clamping plate is attached to the inner wall of the outer tube.
Furthermore, the supporting spring adopts a compression spring, so that the supporting effect is good, and the supporting spring is not easy to damage.
Furthermore, the packing rubber and the rubber ring are made of nitrile rubber.
(III) advantageous effects
Compared with the prior art, the utility model, following beneficial effect has:
the method has the advantages that: the utility model discloses an installed a set casing on the valve body top, and set up the installation and taken over, the installation is taken over the top and is connected with pressure differential transmitter, only needs to take over the installation and inserts to get with high pressure in the set casing and press mouthful and the low pressure is got and is pressed the mouth and be connected when using, and the mounting fixture through set casing internal action both sides is taken over the installation and is pressed from both sides tightly fixed, can accomplish being connected of pressure differential transmitter and valve body.
The advantages are two: the utility model discloses an installed on the set casing top and compeled tight solenoid and compeled tight rubber, will install the takeover and insert to the set casing back in, compel tight solenoid through the rotation and compress tightly and compel tight rubber, increase the fixed effect of installation takeover through compeling tight rubber, and seal up the installation takeover junction.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a sectional view of the internal structure of the valve body according to the present invention;
FIG. 3 is a schematic view of the installation adapter structure of the present invention;
FIG. 4 is a sectional view of the inner structure of the fixing case of the present invention;
fig. 5 is a partially enlarged view of the area a of fig. 4 according to the present invention.
In the figure: the pressure-measuring valve comprises a valve body-1, a fixed shell-2, a high-pressure-measuring port-3, a low-pressure-measuring port-4, a pressure difference cone-5, a low-pressure outlet pipe-6, an installation connecting pipe-7, a pressure difference transmitter-8, a display screen-9, an outer pipe-21, a fixed clamp-22, a threaded joint-23, a tightening solenoid-24, tightening rubber-25, an insertion pipe-71, a fastening thread-72, a groove-73, a connecting pipe-74, a rubber ring-75, a supporting plate-221, a fixed rotating shaft-222, a clamping plate-223, an inclined plate-224 and a supporting spring-225.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1, 2, 3, 4 and 5, the present invention provides a high-precision differential pressure flow sensor: the pressure regulating valve comprises a valve body 1, a fixed shell 2 and an installation connecting pipe 7, wherein a high-pressure taking port 3 and a low-pressure taking port 4 are arranged in the middle of the top end of the valve body 1, the bottom end of the low-pressure taking port 4 is welded with a low-pressure eduction tube 6, the right side of the low-pressure eduction tube 6 is welded with a pressure difference cone 5, the fixed shell 2 is sleeved outside the high-pressure taking port 3 and the low-pressure taking port 4, the bottom end of the fixed shell 2 is welded with the valve body 1, the top end of the fixed shell 2 is locked with the installation connecting pipe 7, a pressure difference transmitter 8 is installed at the top end of the installation connecting pipe 7, a display screen 9 is embedded at the front end of the pressure difference transmitter 8, the fixed shell 2 consists of an outer tube 21, a fixed clamp 22, a threaded joint 23, a tightening solenoid 24 and a tightening rubber 25, the fixed clamp 22 is installed on both sides of the, and the bottom end of the tightening screw pipe 24 is in threaded connection with the threaded joint 23, and the bottom end of the outer pipe 21 is welded with the valve body 1.
Wherein, installation takeover 7 comprises intubate 71, fastening screw 72, recess 73, connecting pipe 74 and rubber circle 75, intubate 71 left and right sides bottom is provided with fastening screw 72, and intubate 71 front and back both sides bottom seted up recess 73, connecting pipe 74 bottom is provided with two connecting pipes 74, and the rubber circle 75 has been cup jointed to connecting pipe 74 bottom, connecting pipe 74 bottom is got through rubber circle 75 respectively with high pressure and is pressed mouthful 3 and low pressure to get and press mouthful 4 to peg graft, intubate 71 bottom is pegged graft each other with outer tube 21, and the outer tube 21 inboard through mounting fixture 22 with intubate 71 press from both sides tightly fixedly.
Wherein, mounting fixture 22 comprises backup pad 221, fixed pivot 222, splint 223, swash plate 224 and supporting spring 225, backup pad 221 middle part rotates along fixed pivot 222, splint 223 and swash plate 224 have been welded respectively to both ends about the backup pad 221 inboard, backup pad 221 left side bottom carries out elastic connection through supporting spring 225 and outer tube 21, both ends peg graft each other with outer tube 21 respectively around the fixed pivot 222.
Wherein, compel tight rubber 25 and be the pipe form, and by the gradual shrinkage of lower supreme, extrude when making to compel tight solenoid 24 rotatory pushing down and compel tight rubber 25 to contract and press from both sides tight sealed to intubate 71.
Wherein, compel tight screwed pipe 24 inner wall top and compel tight rubber 25 laminating, and compel tight screwed pipe 24 outside and be the regular hexagon shape, be convenient for rotate compeling tight screwed pipe 24.
Wherein, splint 223 inner wall is provided with anti-skidding line, and the line and the laminating of the fastening screw thread 72 of intubate 71 left and right sides increase splint 223 to intubate 71 fixed effect.
The surface of the sloping plate 224 is smooth and inclined at an angle of thirty degrees from top to bottom, so that the insertion tube 71 is inserted into the extrusion sloping plate 224 and is expanded outwards.
When the supporting spring 225 extends, the inner side of the clamping plate 223 is attached to the inner wall of the outer tube 21, so that the clamping plate 223 is prevented from influencing the insertion of the insertion tube 71.
The support spring 225 is a compression spring, so that the support effect is good and the support is not easy to damage.
Wherein, compel tight rubber 25 and rubber circle 75 all adopt the nitrile rubber material, resistant extrusion, the leakproofness is good, and not fragile.
This patent compel tight rubber 25 and rubber circle 75 all adopt the nitrile rubber material, nitrile rubber is prepared through the emulsion polymerization by butadiene and acrylonitrile, and nitrile rubber mainly adopts low temperature emulsion polymerization production, and the oil resistance is fabulous, and the wearability is higher, and the heat resistance is better, and the adhesion is strong.
The working principle is as follows:
firstly, the method comprises the following steps: before the valve is used, a high-pressure taking port 3 and a low-pressure taking port 4 of a valve body 1 are connected with a differential pressure transmitter 8;
secondly, the method comprises the following steps: when the insertion tube 71 is inserted, the insertion tube 71 penetrates through the packing screwed tube 24 and the packing rubber 25 and extrudes the inclined plate 224 of the fixing clamp 22, because the surface of the inclined plate 224 is smooth and is inclined at an angle of thirty degrees from top to bottom, the insertion tube 71 is inserted into the extrusion inclined plate 224 to be expanded outwards, the inclined plate 224 drives the bottom of the supporting plate 221 to be expanded outwards, the supporting plate 221 rotates along the fixed rotating shaft 222 in the middle, and the supporting plate 221 rotates to drive the clamping plate 223 at the top to be extruded inwards, because the inner wall of the clamping plate 223 is provided with the antiskid function, the clamping plate 223 is attached to the fastening screw threads 72 at the left side and the right side of the insertion tube 71 through the grains at the outer side, fixing the cannula 71;
thirdly, the method comprises the following steps: then the tightening screw pipe 24 is rotated, the tightening screw pipe 24 moves downwards through the thread fit between the tightening rubber 25 and the threaded joint 23, and the tightening rubber 25 is in a circular tube shape and gradually shrinks from bottom to top, so that the tightening rubber 25 is extruded to shrink when the tightening screw pipe 24 rotates and presses downwards to clamp and seal the insertion pipe 71, the fixing effect of the installation connecting pipe 7 is improved, and the joint of the installation connecting pipe 7 is sealed;
fourthly: when using, be connected pressure differential transmitter 8 with external power source, and be connected the valve body 1 left and right sides with the flow pipeline, take place differential pressure to the inside left and right sides of valve body 1 through pressure differential cone 5, and pressure differential transmitter 8 gets through high pressure and gets pressure mouth 3 and the pressure mouth 4 is got to the low pressure and acquire and calculate the pressure of the inside left and right sides of valve body 1, shows through display screen 9.
The basic principle and the main characteristics of the utility model and the advantages of the utility model have been shown and described above, and the utility model discloses the standard part that uses all can purchase from the market, and dysmorphism piece all can be customized according to the record of the description with the drawing, and the concrete connection mode of each part all adopts conventional means such as ripe bolt rivet among the prior art, welding, and machinery, part and equipment all adopt prior art, conventional model, and conventional connection mode in the prior art is adopted in addition to circuit connection, and the details are not repeated here.
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.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (8)

1. A high-precision differential pressure flow sensor comprises a valve body (1), wherein a high-pressure taking port (3) and a low-pressure taking port (4) are arranged in the middle of the top end of the valve body (1), the bottom end of the low-pressure taking port (4) is welded with a low-pressure outlet pipe (6), and the right side of the low-pressure outlet pipe (6) is welded with a differential pressure cone (5);
the method is characterized in that: still include set casing (2) and installation takeover (7), set casing (2) cup joint and get pressure port (3) and low pressure at the high pressure and get pressure port (4) outside, and set casing (2) bottom welds each other with valve body (1), set casing (2) top and installation takeover (7) lock solid each other, pressure difference transmitter (8) are installed on installation takeover (7) top, pressure difference transmitter (8) front end embedding has display screen (9), set casing (2) are by outer tube (21), mounting fixture (22), screwed joint (23), compel tight solenoid (24) and compel tight rubber (25) to constitute, mounting fixture (22) are all installed to the inside left side both sides of outer tube (21), screwed joint (23) are installed on outer tube (21) top, screwed joint (23) inside embedding compels tight rubber (25), it cup joints tight solenoid (24) in compel tight rubber (25) outside, and the bottom end of the tightening screw pipe (24) is in threaded connection with the threaded joint (23), and the bottom end of the outer pipe (21) is welded with the valve body (1).
2. The high accuracy differential pressure flow sensor of claim 1, wherein: installation is taken over (7) and is become by intubate (71), fastening screw (72), recess (73), connecting pipe (74) and rubber circle (75), intubate (71) left and right sides bottom is provided with fastening screw (72), and intubate (71) front and back both sides bottom sets up recess (73), connecting pipe (74) bottom is provided with two connecting pipes (74), and has cup jointed rubber circle (75) connecting pipe (74) bottom, connecting pipe (74) bottom is got through rubber circle (75) respectively with high pressure and is pressed mouthful (3) and low pressure and get and press mouthful (4) to peg graft, intubate (71) bottom is pegged graft each other with outer tube (21), and outer tube (21) inboard presss from both sides tightly fixedly through mounting fixture (22) and intubate (71).
3. The high accuracy differential pressure flow sensor of claim 1, wherein: the fixing clamp (22) comprises a support plate (221), a fixing rotating shaft (222), a clamping plate (223), an inclined plate (224) and a supporting spring (225), the middle of the support plate (221) rotates along the fixing rotating shaft (222), the clamping plate (223) and the inclined plate (224) are welded at the upper end and the lower end of the inner side of the support plate (221) respectively, the bottom end of the left side of the support plate (221) is elastically connected with the outer pipe (21) through the supporting spring (225), and the front end and the rear end of the fixing rotating shaft (222) are mutually inserted with the outer pipe (21) respectively.
4. The high accuracy differential pressure flow sensor of claim 1, wherein: the packing rubber (25) is in a circular tube shape and gradually shrinks from bottom to top.
5. The high accuracy differential pressure flow sensor of claim 1, wherein: the top end of the inner wall of the tightening screw pipe (24) is attached to the tightening rubber (25), and the outer side of the tightening screw pipe (24) is in a regular hexagon shape.
6. A high accuracy differential pressure flow sensor according to claim 3, wherein: the inner wall of the clamping plate (223) is provided with anti-skidding lines, and the lines are attached to the fastening threads (72) on the left side and the right side of the insertion pipe (71).
7. A high accuracy differential pressure flow sensor according to claim 3, wherein: the surface of the inclined plate (224) is smooth and inclined at an angle of thirty degrees from top to bottom.
8. A high accuracy differential pressure flow sensor according to claim 3, wherein: when the supporting spring (225) extends, the inner side of the clamping plate (223) is attached to the inner wall of the outer tube (21).
CN202020018539.0U 2020-01-06 2020-01-06 High-precision differential pressure flow sensor Active CN210922720U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202020018539.0U CN210922720U (en) 2020-01-06 2020-01-06 High-precision differential pressure flow sensor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202020018539.0U CN210922720U (en) 2020-01-06 2020-01-06 High-precision differential pressure flow sensor

Publications (1)

Publication Number Publication Date
CN210922720U true CN210922720U (en) 2020-07-03

Family

ID=71369057

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202020018539.0U Active CN210922720U (en) 2020-01-06 2020-01-06 High-precision differential pressure flow sensor

Country Status (1)

Country Link
CN (1) CN210922720U (en)

Similar Documents

Publication Publication Date Title
CN210922720U (en) High-precision differential pressure flow sensor
CN112378465A (en) Sensor for detecting liquid flow
CN2649908Y (en) Thin-wall metal pipeline connecting piece
CN200962064Y (en) A two-purpose vacuum standard pipe interface
CN206386591U (en) A kind of steel-plastic composite pipe joint
CN211716038U (en) Expansion type sealing tape for stopping leakage
CN210487184U (en) Air pressure detection device for U-shaped heat exchange tube
CN2675996Y (en) Pipe connection
CN201081067Y (en) Agricultural pipeline connecting pipe fitting
CN210141900U (en) Sealed ultrasonic transducer
CN208138609U (en) A kind of novel PVC pipe
CN206874994U (en) The soft or hard double seal of metal tube
CN202769102U (en) Novel nut-type connector
CN2729493Y (en) Joint for sealing connecting of glass tube and metal pipe
CN2777323Y (en) Metal pipe joint
CN215293974U (en) Thread end seal pipeline
CN2605453Y (en) Equi-diameter double safety joint of aluminium-plastic composite pipe
CN214008462U (en) Device for jointing hard polyvinyl chloride pipe
CN212226298U (en) Sealing connection structure of metal pipe fitting
CN208417825U (en) A kind of reinforced pvc pipe
CN215890373U (en) Oil filter connecting device for air compressor
CN210716497U (en) Sealing component for pipeline connection and connecting device
CN215864179U (en) Snow seed adding tool
CN202256027U (en) Sealing device of water-jacket-method hydrostatic testing machine for gas cylinders with long pipes
CN216477881U (en) Agricultural water conservancy power pump

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant