CN212779435U - Flowmeter clamping device and flow detection system - Google Patents

Flowmeter clamping device and flow detection system Download PDF

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Publication number
CN212779435U
CN212779435U CN202021507872.4U CN202021507872U CN212779435U CN 212779435 U CN212779435 U CN 212779435U CN 202021507872 U CN202021507872 U CN 202021507872U CN 212779435 U CN212779435 U CN 212779435U
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flowmeter
guide rail
clamping device
moving mechanism
horizontal
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茅静静
胡志刚
耿存杰
唐军
张东飞
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Suzhou Institute Of Metrology
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Suzhou Institute Of Metrology
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Abstract

The utility model relates to a metering equipment field, in particular to flowmeter clamping device and flow measurement system. The utility model provides a flowmeter clamping device, which comprises a horizontal moving mechanism, a vertical moving mechanism and a fixed structure; the vertical moving mechanism is provided with the fixed structure, the fixed structure is used for placing the flowmeter, and the vertical moving mechanism is used for adjusting the movement of the fixed structure in the vertical direction so as to adjust the position of the flowmeter in the vertical direction; one side of this horizontal migration mechanism is equipped with the feed liquor pipe, and this horizontal migration mechanism is used for adjusting this feed liquor pipe in the removal of horizontal direction, and then adjusts this feed liquor pipe in the position of horizontal direction, makes this feed liquor pipe dock with the inlet of this flowmeter. The utility model provides a flowmeter clamping device has characteristics with low costs and that flowmeter installation effectiveness is high.

Description

Flowmeter clamping device and flow detection system
Technical Field
The utility model relates to a metering equipment field, in particular to flowmeter clamping device and flow measurement system.
Background
Metering is the eye of industrial production and daily life, and flow metering is one of the components of metering science and technology, and is closely related to economic development, technological progress, national defense construction and the like, and plays an important role. In the industrial production field, the flow rate is usually an important parameter for evaluating the performance of equipment, the quality of products, the production technology and the like, and the rapid development of the industry does not leave the progress of the flow rate measurement related technology. In the daily life field, in order to maintain the harmony of the society and the benefit of each family, water meters, gas meters, heat meters and the like commonly used by common people need to be accurately measured, and with the increasing prominence of the problems of international trade fairness, energy shortage, environmental pollution and the like, the flow measurement also makes great contribution in the fields of trade settlement, energy conservation, environmental protection, medicine and health and the like.
In daily life, mass flow meters are common. However, with the rapid development of biomedical engineering, semiconductor manufacturing, and chemical industries, small flow meters are increasingly used. According to the statistics of relevant data at home and abroad, the flow meter applied in the industrial field accounts for (15-30)% of the total number of the whole meter. The accuracy of a small flow meter directly affects the performance of a system, so that a flow standard device adapted to the small flow meter is required to be equipped for realizing accurate verification of the flow meter. Due to the continuous perfection of the flow metering technology and the complexity of the testing environment, the technical indexes which the flow meter needs to meet are stricter. In the field of liquid flow measurement, in order to adapt to the situations, the piston type liquid (micro) small-flow standard device can meet the measurement requirements, and has the advantages of simple structure, small volume, high calibration precision, high automation degree, simple operation and the like.
However, with the increasingly high quality development degree of the industry, the quantity of the liquid flowmeter is increasingly large, the types are increasingly complex and diversified, the installation of the flowmeter in the calibration process is also increasingly complex, the installation can be completed only by the cooperation of at least two persons, and the installation efficiency is low and the installation cost is high.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve is that current flowmeter installation effectiveness is low and with high costs technical problem.
In order to solve the technical problem, the application discloses a flowmeter clamping device which comprises a horizontal moving mechanism, a vertical moving mechanism and a fixing structure;
the vertical moving mechanism is provided with the fixed structure, the fixed structure is used for placing the flowmeter, and the vertical moving mechanism is used for adjusting the movement of the fixed structure in the vertical direction so as to adjust the position of the flowmeter in the vertical direction;
one side of this horizontal migration mechanism is equipped with the feed liquor pipe, and this horizontal migration mechanism is used for adjusting this feed liquor pipe in the removal of horizontal direction, and then adjusts this feed liquor pipe in the position of horizontal direction, makes this feed liquor pipe dock with the inlet of this flowmeter.
Optionally, the horizontal moving mechanism includes a cylinder, a first guide rail, a first slider, and a first base;
the first base is provided with the first guide rail;
the first sliding block is arranged in the first guide rail, the air cylinder is arranged at the top of the first sliding block, and the first sliding block is used for driving the air cylinder to a preset position on the first guide rail so as to move the liquid inlet pipe to a first horizontal position and then move the liquid inlet pipe to a second horizontal position through the air cylinder;
the second horizontal position is the horizontal position of the liquid inlet pipe and the liquid inlet in butt joint.
Optionally, the material of the first rail comprises 304 stainless steel.
Optionally, the vertical movement mechanism comprises a second base and a lead screw lift;
the second base is provided with the screw rod lifter;
the top of the screw rod lifter is fixedly connected with the fixed structure.
Optionally, the connection mode of the flowmeter and the liquid inlet pipe is flange connection.
Optionally, the flow meter is a coriolis mass flow meter, an ultrasonic flow meter, a turbine flow meter or a vortex shedding flow meter.
Optionally, the fixing structure comprises a support table and a slot member;
the bottom of this brace table is connected with this vertical movement mechanism, and the top of this brace table is equipped with this draw-in groove spare, and this draw-in groove spare is used for spacing this flowmeter.
Optionally, the fixed structure further comprises a second guide rail and a second slider;
the second guide rail is arranged on the support platform;
the second sliding block is arranged in the second guide rail, and the top of the second sliding block is fixedly connected with the clamping groove piece.
The application also discloses a flow detection system in another aspect, which comprises a water tank and the flowmeter clamping device.
Optionally, the water outlet of the water tank is connected with the liquid inlet pipe;
the liquid outlet of the flowmeter is connected with the reflux port of the water tank.
Adopt above-mentioned technical scheme, the flowmeter clamping device that this application provided has following beneficial effect:
the application provides a flowmeter clamping device which comprises a horizontal moving mechanism, a vertical moving mechanism and a fixing structure; the vertical moving mechanism is provided with the fixed structure, the fixed structure is used for placing the flowmeter, and the vertical moving mechanism is used for adjusting the movement of the fixed structure in the vertical direction so as to adjust the position of the flowmeter in the vertical direction; one side of this horizontal migration mechanism is equipped with the feed liquor pipe, and this horizontal migration mechanism is used for adjusting this feed liquor pipe in the removal of horizontal direction, and then adjusts this feed liquor pipe in the position of horizontal direction, makes this feed liquor pipe dock with the inlet of this flowmeter. That is to say, this application is through the position of vertical moving mechanism direct adjustment flowmeter in vertical direction for inlet and liquid outlet and feed liquor pipe and drain pipe of flowmeter are at same level, the liquid outlet and the drain pipe of flowmeter this moment are connected, at this moment, rethread water translation mechanism horizontal migration feed liquor pipe, just can make the butt joint of feed liquor pipe and flowmeter, thereby press from both sides and adorn the flowmeter, carry out follow-up measurement again, this process only needs alone to operate, greatly save the cost of labor and improved the installation effectiveness.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic view of a flowmeter clamping device of the present application;
FIG. 2 is a partial cross-sectional view of the horizontal displacement mechanism of the present application;
FIG. 3 is a schematic structural view of a first guide rail and a first slider according to the present application;
FIG. 4 is a schematic structural view of the vertical moving mechanism and the fixed structure of the present application;
fig. 5 is a schematic structural diagram of the fixing structure of the present application.
The following is a supplementary description of the drawings:
1-a horizontal moving mechanism; 101-a cylinder; 102-a first base; 104-a first slider; 103-a first guide rail; 2-a vertical moving mechanism; 201-a second base; 202-screw elevator; 203-vertical direction adjustment handle; 3-a fixed structure; 301-a support table; 3011-a first stringer; 3012-a second stringer; 3013-a beam; 302-a socket member; 303-a second guide rail; 304-a second slider; 4-a flow meter; 5-liquid inlet pipe.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic may be included in at least one implementation of the present application. In the description of the present application, it is to be understood that the terms "upper", "lower", "top", "bottom", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present application and simplifying the description, and do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present application. 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. Moreover, the terms "first," "second," and the like are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or described herein.
As shown in fig. 1, fig. 1 is a schematic structural diagram of a flowmeter clamping device according to the present application; the application provides a flowmeter clamping device, which comprises a horizontal moving mechanism 1, a vertical moving mechanism 2 and a fixing structure 3; the vertical moving mechanism 2 is provided with the fixed structure 3, the fixed structure 3 is used for placing the flowmeter 4, and the vertical moving mechanism 2 is used for adjusting the movement of the fixed structure 3 in the vertical direction so as to adjust the position of the flowmeter 4 in the vertical direction; one side of this horizontal migration mechanism 1 is equipped with feed liquor pipe 5, and this horizontal migration mechanism 1 is used for adjusting this feed liquor pipe 5 in the removal of horizontal direction, and then adjusts the position of this feed liquor pipe 5 in the horizontal direction, makes this feed liquor pipe 5 dock with the inlet of this flowmeter 4. That is to say, this application is through the position of 2 direct adjustment flowmeters 4 in vertical direction of vertical moving mechanism, make inlet and liquid outlet and feed liquor pipe 5 and drain pipe of flowmeter 4 at same level, the liquid outlet and the drain pipe of flowmeter 4 are connected this moment, 1 horizontal migration feed liquor pipe 5 of rethread water horizontal movement mechanism, just can make feed liquor pipe 5 and flowmeter 4's inlet butt joint, thereby press from both sides and adorn flowmeter 4, carry out follow-up measurement again, this process only needs alone to operate, the cost of labor has greatly been saved and installation effectiveness has been improved.
Moreover, the application provides a 4 moving platform of flowmeter can be applicable to the flowmeter 4 of different models, only need adjust or change fixed knot construct 3 and feed liquor pipe 5 and drain pipe the size can, have the advantage that accommodation is wide and the flexibility is high, reduced 4 testing platform's of flowmeter type and quantity, and then reduce cost.
In an alternative embodiment, as shown in fig. 2, fig. 2 is a partial cross-sectional view of the horizontal movement mechanism 1 of the present application. The horizontal moving mechanism 1 comprises a cylinder 101, a first guide rail 103, a first slide block 104 and a first base 102; the first base 102 is provided with the first guide rail 103; the first slider 104 is arranged in the first guide rail 103, the cylinder 101 is arranged at the top of the first slider 104, and the first slider 104 is used for driving the cylinder 101 to a preset position on the first guide rail 103, so that the liquid inlet pipe 5 is moved to a first horizontal position, and then the liquid inlet pipe 5 is moved to a second horizontal position through the cylinder 101; the second horizontal position is the horizontal position of the liquid inlet pipe 5 and the liquid inlet in butt joint. That is to say, first, this application can slide and then the horizontal position of coarse adjustment cylinder 101 in first guide rail 103 through above-mentioned first slider 104, and then the horizontal position of adjustment feed liquor pipe 5 through the length of the piston of adjustment cylinder 101 for the kind and the size of flowmeter 4 on the device can be more extensive, also has the advantage efficient and convenient, laborsaving of regulation. In another alternative embodiment, as shown in fig. 3, fig. 3 is a schematic structural view of the first guide rail 103 and the first slider 104 of the present application. The first base 102 is provided with a first guide rail 103, the first guide rail 103 is a groove formed in the middle of the first base 102, and the first slider 104 is provided with a protrusion corresponding to and matched with the first guide rail 103, so that the first slider 104 can slide in the first guide rail 103, another application scene is provided for the horizontal movement mechanism 1, and the flexibility of the horizontal movement mechanism is improved. In another alternative embodiment, the horizontal moving mechanism 1 is a horizontally moving lead screw device.
In an alternative embodiment, the material of the first guide rail 103 includes 304 stainless steel, which not only reduces the loss of the first guide rail 103 during use, but also enables the first guide rail 103 to bear a relatively large mass of the flowmeter 4, and also prevents the first guide rail 103 from rusting, which affects the smoothness of the movement of the first slider 104 thereon, although the material of the first guide rail 103 may be other materials with high strength properties, such as, but not limited to, the above-mentioned metal materials, such as, for example, high strength steel plates.
In an alternative embodiment, as shown in fig. 4, fig. 4 is a schematic structural view of the vertical moving mechanism 2 and the fixed structure 3 of the present application; the vertical moving mechanism 2 includes a second base 201 and a screw elevator 202; the second base 201 is provided with the screw rod lifter 202; the top of the screw elevator 202 is fixedly connected with the fixed structure 3, and then the position of the fixed structure 3 in the vertical direction is adjusted by adjusting the screw elevator 202 through the vertical direction adjusting handle 203.
In an alternative embodiment, the fixed structure 3 comprises a support table 301 and a channel member 302; the bottom of this supporting bench 301 is connected with this vertical movement mechanism 2, and the top of this supporting bench 301 is equipped with this card slot piece 302, and this card slot piece 302 is used for spacing this flowmeter 4.
In an alternative embodiment, the fixed structure 3 further comprises a second guide rail 303 and a second slider 304; the second guide rail 303 is disposed on the supporting platform 301; the second sliding block 304 is disposed in the second guiding rail 303, and the top of the second sliding block 304 is fixedly connected to the slot 302. In another alternative embodiment, a second guide rail 303 is disposed on the support table 301, as shown in fig. 5, and fig. 5 is a schematic structural view of the fixing structure 3 of the present application. The fixed structure 3 further comprises a second guide rail 303 and a second slider 304; the second guide rail 303 is a groove formed in the middle of the support table 301, and the second slider 304 has a protrusion corresponding to and matching with the second guide rail 303, so that the second slider 304 can slide in the second guide rail 303, thereby providing another application scenario for the vertical moving mechanism 2, and improving the application flexibility thereof.
In another alternative embodiment, support table 301 includes a first stringer 3011, a second stringer 3012, and a cross-beam 3013; crossbeam 3013's one end is connected with first longeron 3011, and crossbeam 3013's the other end is connected with second longeron 3012, and all is equipped with a second guide rail 303 on first longeron 3011 and the second longeron 3012, every second guide rail 303 all with correspond a slider, vertical removal is connected with crossbeam 3013, has improved the structural stability of draw-in groove spare 302, is favorable to this mounting to place heavier flowmeter 4.
In an alternative embodiment, the connection of the flow meter 4 to the liquid inlet pipe 5 is a flange connection. In another optional implementation mode, the flowmeter clamping device further comprises a straight pipe section and a designated non-standard pipe fitting for switching the flowmeter 4 and the liquid inlet pipe 5, so that the application range of the flowmeter clamping device is further improved, the tightness of connection between the liquid inlet pipe 5 and the flowmeter 4 can be ensured, and the measurement accuracy is improved.
In an optional embodiment, the flow shifting device further comprises a fixing clamp and an adapter for arranging different pipelines of the device, so that the tidiness of the device is improved, the pipelines are not easy to mix, and potential safety hazards are reduced.
In an alternative embodiment, the flow meter 4 is a coriolis mass flow meter 4, an ultrasonic flow meter 4, a turbine flow meter 4 or a vortex shedding flow meter 4.
For a clearer understanding of the beneficial effects of the flowmeter clamping device provided by the present application, an alternative embodiment of the present application is as follows:
the flowmeter clamping device comprises a horizontal moving mechanism 1, a vertical moving mechanism 2 and a fixing structure 3; the vertical moving mechanism 2 is provided with the fixed structure 3, the fixed structure 3 is used for placing the flowmeter 4, and the vertical moving mechanism 2 is used for adjusting the movement of the fixed structure 3 in the vertical direction so as to adjust the position of the flowmeter 4 in the vertical direction; one side of this horizontal migration mechanism 1 is equipped with feed liquor pipe 5, and this horizontal migration mechanism 1 is used for adjusting this feed liquor pipe 5 in the removal of horizontal direction, and then adjusts the position of this feed liquor pipe 5 in the horizontal direction, makes this feed liquor pipe 5 dock with the inlet of this flowmeter 4.
Wherein, the horizontal moving mechanism 1 comprises a cylinder 101, a first guide rail 103, a first slide block 104 and a first base 102; the first base 102 is provided with the first guide rail 103; the first slider 104 is arranged in the first guide rail 103, the cylinder 101 is arranged at the top of the first slider 104, and the first slider 104 is used for driving the cylinder 101 to a preset position on the first guide rail 103, so that the liquid inlet pipe 5 is moved to a first horizontal position, and then the liquid inlet pipe 5 is moved to a second horizontal position through the cylinder 101; the second horizontal position is the horizontal position of the liquid inlet pipe 5 and the liquid inlet in butt joint.
The vertical moving mechanism 2 includes a second base 201 and a screw elevator 202; the second base 201 is provided with the screw rod lifter 202; the top of this lead screw lift 202 and this fixed knot construct 3 fixed connection, and then adjust lead screw lift 202 through vertical adjustment handle and adjust the position of fixed knot construct 3 in vertical direction.
The fixed structure 3 comprises a support table 301 and a slot member 302; the bottom of this supporting bench 301 is connected with this vertical movement mechanism 2, and the top of this supporting bench 301 is equipped with this card slot piece 302, and this card slot piece 302 is used for spacing this flowmeter 4.
The fixed structure 3 further comprises a second guide rail 303 and a second slider 304; the second guide rail 303 is a groove formed in the middle of the support platform 301, and the second slider 304 has a protrusion corresponding to the second guide rail 303, so that the second slider 304 can slide in the second guide rail 303.
The support table 301 comprises a first longitudinal beam 3011, a second longitudinal beam 3012 and a cross beam 3013; crossbeam 3013's one end is connected with first longeron 3011, and crossbeam 3013's the other end is connected with second longeron 3012, and all is equipped with a second guide rail 303 on first longeron 3011 and the second longeron 3012, every second guide rail 303 all with correspond a slider, vertical removal is connected with crossbeam 3013, has improved the structural stability of draw-in groove spare 302, is favorable to this mounting to place heavier flowmeter 4.
This flow mobile device still includes the fixation clamp for the different pipelines of arrangement the device, the clean and tidy of improving the device to the pipeline is mixed to difficult the making up, reduces the potential safety hazard.
And the materials of the first guide rail 103, the second guide rail 303, the support table 301, the first base 102 and the second base 201 are 304 stainless steel.
And (3) replacing different types of flowmeters and detecting to obtain a table 1, wherein the table 1 is the detection result of different flowmeters 4 applying the flowmeter clamping device.
Table 1 test results of different flowmeters 4 using a flowmeter clamping device
Figure BDA0002603252980000081
Figure BDA0002603252980000091
As can be seen from the table 1, after 4 flowmeters in the table are installed by the flowmeter clamping device, the sealing performance of the flowmeters, namely the connection sealing performance of each flowmeter 4 and the liquid inlet pipe 5 and the liquid outlet pipe, is detected, and the result display is qualified. And through setting for flow and the actual flow of comparison flowmeter 4, discover that its indicating value error all is in its grade scope, meet the requirements, that is to say that the leakproofness and the detection of the flowmeter clamping device that this application provided all meet the standard requirements, use the flowmeter clamping device that this application provided only to need alone can accomplish flowmeter 4's installation in addition, have that the installation effectiveness is high, detect the repeatability height to and use manpower sparingly and reduce cost's advantage.
The application also discloses a flow detection system in another aspect, which comprises a water tank and the flowmeter clamping device.
In an alternative embodiment, the water outlet of the water tank is connected to the liquid inlet pipe 5; the liquid outlet of the flow meter 4 is connected with the return port of the water tank.
The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims (10)

1. The flowmeter clamping device is characterized by comprising a horizontal moving mechanism (1), a vertical moving mechanism (2) and a fixing structure (3);
the vertical moving mechanism (2) is provided with the fixed structure (3), the fixed structure (3) is used for placing the flowmeter (4), and the vertical moving mechanism (2) is used for adjusting the movement of the fixed structure (3) in the vertical direction so as to adjust the position of the flowmeter (4) in the vertical direction;
one side of horizontal migration mechanism (1) is equipped with feed liquor pipe (5), horizontal migration mechanism (1) is used for adjusting feed liquor pipe (5) is at the removal of horizontal direction, and then adjusts feed liquor pipe (5) is in the position of horizontal direction, makes feed liquor pipe (5) with the inlet butt joint of flowmeter (4).
2. The flowmeter clamping device according to claim 1, wherein: the horizontal moving mechanism (1) comprises an air cylinder (101), a first guide rail (103), a first sliding block (104) and a first base (102);
the first base (102) is provided with the first guide rail (103);
the first sliding block (104) is arranged in the first guide rail (103), the air cylinder (101) is arranged at the top of the first sliding block (104), and the first sliding block (104) is used for driving the air cylinder (101) to a preset position on the first guide rail (103), so that the liquid inlet pipe (5) is moved to a first horizontal position, and then the liquid inlet pipe (5) is moved to a second horizontal position through the air cylinder (101);
the second horizontal position is the horizontal position of the butt joint of the liquid inlet pipe (5) and the liquid inlet.
3. The flowmeter clamping device according to claim 2, wherein: the material of the first guide rail (103) comprises 304 stainless steel.
4. The flowmeter clamping device according to claim 1, wherein: the vertical moving mechanism (2) comprises a second base (201) and a lead screw lifter (202);
the second base (201) is provided with the lead screw lifter (202);
the top of the screw rod lifter (202) is fixedly connected with the fixed structure (3).
5. The flowmeter clamping device according to claim 1, wherein: the flowmeter (4) is connected with the liquid inlet pipe (5) in a flange mode.
6. The flowmeter clamping device according to claim 1, wherein: the flowmeter (4) is a Coriolis mass flowmeter (4), an ultrasonic flowmeter (4), a turbine flowmeter (4) or a vortex shedding flowmeter (4).
7. The flowmeter clamping device according to claim 1, wherein: the fixing structure (3) comprises a support table (301) and a clamping groove piece (302);
the bottom of the supporting table (301) is connected with the vertical moving mechanism (2), the clamping groove piece (302) is arranged at the top of the supporting table (301), and the clamping groove piece (302) is used for limiting the flowmeter (4).
8. The flowmeter clamping device according to claim 7, wherein: the fixed structure (3) further comprises a second guide rail (303) and a second slider (304);
the second guide rail (303) is arranged on the support table (301);
the second sliding block (304) is arranged in the second guide rail (303), and the top of the second sliding block (304) is fixedly connected with the clamping groove piece (302).
9. A flow sensing system comprising a water tank and a flow meter clamping device according to any one of claims 1-8.
10. The flow sensing system of claim 9, wherein: the water outlet of the water tank is connected with the liquid inlet pipe (5);
and the liquid outlet of the flow meter (4) is connected with the return port of the water tank.
CN202021507872.4U 2020-07-27 2020-07-27 Flowmeter clamping device and flow detection system Active CN212779435U (en)

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Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113531217A (en) * 2021-08-14 2021-10-22 卡图电子(昆山)有限公司 Flow test bench

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113531217A (en) * 2021-08-14 2021-10-22 卡图电子(昆山)有限公司 Flow test bench

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