CN118149937A - Bypass flowmeter - Google Patents
Bypass flowmeter Download PDFInfo
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- CN118149937A CN118149937A CN202410088123.9A CN202410088123A CN118149937A CN 118149937 A CN118149937 A CN 118149937A CN 202410088123 A CN202410088123 A CN 202410088123A CN 118149937 A CN118149937 A CN 118149937A
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- 239000007788 liquid Substances 0.000 claims abstract description 51
- 238000007789 sealing Methods 0.000 claims description 105
- 238000004891 communication Methods 0.000 claims description 49
- 230000005540 biological transmission Effects 0.000 claims description 32
- 210000004907 gland Anatomy 0.000 claims description 13
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000003780 insertion Methods 0.000 claims description 2
- 230000037431 insertion Effects 0.000 claims description 2
- 230000015572 biosynthetic process Effects 0.000 claims 2
- 238000010276 construction Methods 0.000 claims 2
- 238000005755 formation reaction Methods 0.000 claims 2
- 238000012423 maintenance Methods 0.000 abstract description 8
- 230000001360 synchronised effect Effects 0.000 description 17
- 238000007689 inspection Methods 0.000 description 8
- 238000004140 cleaning Methods 0.000 description 5
- 230000008859 change Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 230000003449 preventive effect Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000002980 postoperative effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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Abstract
The invention discloses a bypass flowmeter, comprising: a body portion provided with a flowmeter body, and a bypass portion; the body portion is provided with a chamber, a first passage and a second passage, and a third passage and a fourth passage, a fifth passage and a sixth passage, and the bypass portion is provided with a seventh passage. When maintenance is required on the flowmeter body, the first valve seals the first channel, the second valve seals the second channel, at the moment, liquid does not flow through the flowmeter body any more, the liquid enters the third channel from the pipeline, then enters the fourth channel through the third channel, then enters the seventh channel from the fourth channel, and finally flows into the pipeline through the fifth channel after entering the sixth channel through the seventh channel; at this time, the flow body can be disassembled and assembled and maintained without interrupting the whole pipeline system, so that the economic loss caused by interrupting the pipeline system is reduced.
Description
Technical Field
The invention relates to the technical field of flowmeters, in particular to a bypass flowmeter.
Background
The flow meter is a device for measuring a flow rate, and is generally installed on an existing pipeline, and there are a turbine flow meter, an ultrasonic flow meter, a volumetric flow meter, and the like according to a measurement principle. However, even in a flowmeter that is well designed and uses high-quality components, if no planned inspection or maintenance management is performed, the original functions of the equipment cannot be performed, and the stability and reliability of the equipment are reduced, which becomes a cause of an accident in the whole system of the flowmeter, so that periodic inspection and maintenance are absolutely necessary.
Typically, inspection and maintenance of flow meters is categorized into preventive and post-operative management. Preventive inspection includes testing, cleaning, zeroing, and replacement of parts in a particular sequence and method, post-management refers to the work performed to restore the meter to an operational state after an abnormality has occurred.
For the flowmeters provided on the oil pipeline and the oil storage tank, the functional inspection of the flowmeters should be performed once a month, and the decomposition inspection for decomposing the whole parts should be performed once a year.
However, in addition to the case of replacing the flow meter part, in the case of performing preventive simple inspections such as cleaning, zero point adjustment, etc., it is necessary to stop the entire flow path system and discharge all the liquid remaining in the pipe by the pump to inspect the flow meter, so that the inspection and replacement work is not only troublesome but also takes a long time, and the entire system is stopped, and thus the economic loss is very large. Therefore, it is an object of the present invention to reduce the economic loss by avoiding interruption of the entire piping system when the flowmeter is inspected, maintained, and replaced. Accordingly, there is a need for a bypass flow meter that at least partially addresses the problems of the prior art.
Disclosure of Invention
In the summary, a series of concepts in a simplified form are introduced, which will be further described in detail in the detailed description. The summary of the invention is not intended to define the key features and essential features of the claimed subject matter, nor is it intended to be used as an aid in determining the scope of the claimed subject matter.
To at least partially solve the above problems, the present invention provides a bypass flow meter comprising: a body portion provided with a flowmeter body, and a bypass portion connected to the body portion; the body part is provided with a chamber for installing the flowmeter body, a first channel and a second channel which are communicated with the chamber, a third channel and a fourth channel which are communicated with the end part of the first channel, a fifth channel and a sixth channel which are communicated with the end part of the second channel, the bypass part is provided with a seventh channel which is used for communicating the fourth channel with the sixth channel, the communicating parts of the first channel, the third channel and the fourth channel are provided with first valves, and the communicating parts of the second channel, the fifth channel and the sixth channel are provided with second valves;
when the first valve closes the first channel and the second valve closes the second channel, the liquid enters the fourth channel through the third channel, enters the sixth channel through the seventh channel and flows out through the fifth channel;
When the first valve closes the fourth channel and the second valve closes the sixth channel, the liquid enters the first channel through the third channel, passes through the flowmeter body in the chamber, enters the second channel, and then flows out through the fifth channel.
Preferably, the part of the flowmeter body contacted with the liquid is positioned in the cavity, the first channel and the second channel are respectively positioned at two opposite sides of the cavity, the communication part of the first channel and the cavity is positioned on an extension line of a tangent line of the part of the flowmeter body contacted with the liquid, and the communication part of the second channel and the cavity is positioned on a radial extension line of the part of the flowmeter body contacted with the liquid.
Preferably, the first channel, the third channel and the fourth channel form a T-shaped tee structure, the communication position of the first channel, the third channel and the fourth channel is a first communication position, and the first valve selectively seals the first channel or seals the fourth channel; the second channel, the fifth channel and the sixth channel form a T-shaped tee joint structure, the communication position of the second channel, the fifth channel and the sixth channel is a second communication position, and the second valve selectively seals the second channel or seals the sixth channel.
Preferably, a sealing hole communicated with the seventh channel is formed in the bypass portion, and a sealing element is arranged in the sealing hole and detachably connected with the sealing hole.
Preferably, the first valve and the second valve are both provided at the body portion or at the bypass portion;
when the first valve and the second valve are both disposed in the body portion, the first valve extends through the body portion and into a first communication, and the second valve extends through the body portion and into a second communication;
When both the first valve and the second valve are disposed in the bypass portion, the first valve extends through the bypass portion and into the fourth passage, and the second valve extends through the bypass portion and into the sixth passage.
Preferably, the first valve and the second valve are both located on the body part, the first valve has the same structure as the second valve, each of which is provided with a first sealing column with a groove on a side wall, a sealing ring arranged on the first sealing column, a sliding sleeve sleeved on the first sealing column and located between the groove and the sealing ring, and a knob arranged at the end part of the first sealing column, the outer wall of the body part is provided with a through hole penetrating to the first communication position and the second communication position, the through hole is provided with a protruding mounting tube with external threads, and a gland in threaded fit with the mounting tube, the opening diameter of the groove of the first sealing column located in the first communication position is the same as the inner diameter of the first channel, the opening diameter of the groove of the first sealing column located in the second communication position is the same as the inner diameter of the second channel, the first sealing column is sleeved on the first channel, the mounting tube is in threaded fit with the sealing sleeve, and the sealing column is in threaded fit with the sealing ring, and the sealing sleeve is in contact with one end of the sliding sleeve.
Preferably, the structure of the first valve is the same as that of the second valve, and the first valve is composed of a second sealing column provided with a driving rod and a transmission device for driving the driving rod to rotate or translate, wherein the driving rod is arranged along the central axis of the second sealing column, and the connecting end of the second sealing column and the driving rod is an inclined plane;
When the first valve and the second valve are both arranged on the body part, the side wall of the second sealing column of the first valve selectively closes the first channel or the fourth channel, and the side wall of the second sealing column of the second valve selectively closes the second channel or the sixth channel;
when both the first valve and the second valve are disposed on the bypass portion, the second sealing post of the first valve is located in the fourth passage and the second sealing post of the second valve is located in the sixth passage.
Preferably, the first valve and the second valve are both located on different surfaces of the body part with the flowmeter body, a limiting structure is arranged on the first valve and the second valve, a synchronous member is sleeved on the limiting structure of the first valve and the limiting structure of the second valve, and the synchronous member consists of a first synchronous piece sleeved on the first valve, a second synchronous piece sleeved on the second valve and a transmission piece for connecting the first synchronous piece and the second synchronous piece.
Preferably, the first synchronous piece is composed of a first plug-in piece with a plug and a first groove piece with a groove for being inserted into the plug of the first plug-in piece, the first plug-in piece and the first groove piece are respectively provided with a first mounting head for mounting the transmission piece and a first through hole with a shape corresponding to that of the limiting structure, the first plug-in piece and the first groove piece are respectively connected with the limiting structure through the first through hole, the first mounting head is provided with a first fixing groove for fixing the transmission piece, the first fixing groove of the first plug-in piece and the first fixing groove of the first groove piece are oppositely arranged, and the transmission piece is connected with the first synchronous piece through the first fixing groove;
The second synchronous piece comprises a second plug-in component with a plug and a second groove component with a groove for being inserted with the plug of the second plug-in component, the second plug-in component and the second groove component are respectively provided with a second mounting head for mounting the transmission piece, and a second through hole with a shape corresponding to the limiting structure, the second plug-in component and the second groove component are respectively connected with the limiting structure through the second through hole, the second mounting head is provided with a second fixing groove for fixing the transmission piece, the second fixing groove of the second plug-in component and the second fixing groove of the second groove component are oppositely arranged, and the transmission piece is connected with the second synchronous piece through the second fixing groove.
Preferably, the transmission piece comprises a first end sleeved on the first mounting head, a second end sleeved on the second mounting head, and two connecting sections which are arranged in a crossing manner and used for connecting the first end and the second end, a first clamping section which is clamped with the first fixing groove is arranged on the first end, and a second clamping section which is clamped with the second fixing groove is arranged on the second end.
Compared with the prior art, the invention at least comprises the following beneficial effects:
When maintenance is required on the flowmeter body, the first valve seals the first channel, the second valve seals the second channel, at the moment, liquid does not flow through the flowmeter body any more, the liquid enters the third channel from the pipeline, then enters the fourth channel through the third channel, then enters the seventh channel from the fourth channel, and finally flows into the pipeline through the fifth channel after entering the sixth channel through the seventh channel; at this time, the flow body can be disassembled and assembled and maintained without interrupting the whole pipeline system, so that the economic loss caused by interrupting the pipeline system is reduced.
When maintenance of the flowmeter body is finished or the flowmeter body is used daily, the first valve seals the fourth channel, the second valve seals the sixth channel, at the moment, liquid does not flow through the seventh channel any more, the liquid enters the third channel from the pipeline, then enters the first channel through the third channel, enters the cavity from the first channel, passes through the flowmeter body in the cavity, enters the second channel, and then is conveyed into the pipeline through the fifth channel.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
The accompanying drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate the invention and together with the embodiments of the invention, serve to explain the invention. In the drawings:
Fig. 1 is a schematic view of a first embodiment of a bypass flow meter according to the present invention.
Fig. 2 is an exploded view of fig. 1.
Fig. 3 is a cross-sectional view of a bypass flow meter according to the present invention during flow measurement.
Fig. 4 is a cross-sectional view of the bypass flow meter according to the present invention when flow measurement is stopped.
Fig. 5 is a cross-sectional view of A-A in fig. 4.
Fig. 6 is a partial schematic view of a second embodiment of a first valve in a bypass flow meter according to the present invention.
Fig. 7 is a schematic diagram of the first valve (second valve) for switching the passage in the second embodiment.
Fig. 8 is a schematic diagram of the first valve (second valve) switching the passage in the third embodiment.
Fig. 9 is a schematic structural view of a synchronizing member in a bypass flow meter according to the present invention.
Fig. 10 is an exploded view of fig. 9.
FIG. 11 is a schematic diagram of a synchronous member driving a first valve and a second valve to synchronously rotate in a bypass flow meter according to the present invention.
In the figure: 100 meter body, 1 body portion, 11 first channel, 12 second channel, 13 third channel, 14 fourth channel, 15 fifth channel, 16 sixth channel, 17 chamber, 18 mounting tube, 19 gland, 2 bypass portion, 21 seventh channel, 22 seal, 3a,3b,3c first valve, 31 first seal post, 32 seal ring, 33 sliding sleeve, 34 knob, 4a,4b,4c second valve, 41 second seal post, 42 drive rod, 5 first synchronization member, 51 first insert, 52 first slot member, 53a,53b first mounting head, 54a,54b first securing slot, 6 second synchronization member, 61 second insert, 62 second slot member, 63a,63b second mounting head, 64a,64b second securing slot, 7 drive member, 71 first end, 72 second end, 73a,73b connection segment, 74 first snap-in segment, 75 second snap-in segment.
Detailed Description
The present invention is described in further detail below with reference to the drawings and examples to enable those skilled in the art to practice the invention by referring to the description.
It will be understood that terms, such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.
As shown in fig. 1-11, the present invention provides a bypass flow meter comprising: a body portion 1 provided with a flowmeter body 100, and a bypass portion 2 connected to the body portion 1; the body portion 1 and the bypass portion 2 are detachably connected, for example, by a screw connection as shown in fig. 1, to facilitate the disassembly and assembly of the bypass portion 2. The body part 1 is provided with a chamber 17 for installing the flowmeter body 100, a first channel 11 and a second channel 12 which are communicated with the chamber 17, a third channel 13 and a fourth channel 14 which are communicated with the end part of the first channel 11, and a fifth channel 15 and a sixth channel 16 which are communicated with the end part of the second channel 12, wherein the third channel 13 is connected with a pipeline and can be regarded as a liquid inlet pipe, and the fifth channel 15 is connected with the pipeline and can be regarded as a liquid outlet pipe. The bypass part 2 is provided with a seventh channel 21 for communicating the fourth channel 14 with the sixth channel 16, the seventh channel 21 can be regarded as a bypass flow path, the communication positions of the first channel 11, the third channel 13 and the fourth channel 14 are provided with first valves, and the communication positions of the second channel 12, the fifth channel 15 and the sixth channel 16 are provided with second valves;
When maintenance of the flowmeter body 100 is required, the first valve closes the first channel 11, the second valve closes the second channel 12, at this time, the liquid no longer flows through the flowmeter body 100, the liquid enters the third channel 13 from the pipeline, then enters the fourth channel 14 through the third channel 13, then enters the seventh channel 21 from the fourth channel 14, and enters the sixth channel 16 through the seventh channel 21, then reaches the fifth channel 15, and finally flows into the pipeline through the fifth channel 15; at this time, the flow rate body 100 can be disassembled and assembled without interrupting the entire piping system, thereby reducing the economic loss caused by the interruption of the piping system.
When maintenance of the flowmeter body 100 is finished, or when the flowmeter body 100 is used daily, the first valve closes the fourth channel 14, the second valve closes the sixth channel 16, at this time, the liquid no longer flows through the seventh channel 21, the liquid enters the third channel 13 from the pipeline, then enters the first channel 11 through the third channel 13, enters the chamber 17 from the first channel 11, enters the second channel 12 after passing through the flowmeter body 100 in the chamber 17, and then is conveyed into the pipeline through the fifth channel 15.
In order to clean the seventh passage 21 without dismantling the bypass portion 2, a sealing hole communicating with the seventh passage 21 is provided in the bypass portion 2, a sealing member 22 is provided in the sealing hole, and the sealing member 22 is detachably connected with the sealing hole. When cleaning of the seventh channel 21 is required, it is first necessary to ensure that liquid does not flow through the seventh channel 21, then the sealing member 22 is removed from the sealing bore of the bypass portion 2, a cleaning appliance is inserted into the seventh channel 21 from the sealing bore, the seventh channel 21 is cleaned, the sealing member 22 is mounted back into the sealing bore after cleaning, and the sealing member 22 may be a sealing plug screwed into the sealing bore. And the flowmeter body 100 of the present invention can be of any of the types mentioned in the background.
The portion of the flowmeter body 100 in contact with the liquid is located in the chamber 17, as shown in fig. 3 and 4, the first channel 11 and the second channel 12 are located on two opposite sides of the chamber 17, the communication between the first channel 11 and the chamber 17 is located on the extension line of the tangent line of the portion of the flowmeter body 100 in contact with the liquid, if the portion of the flowmeter body 100 in contact with the liquid is an impeller, the communication between the first channel 11 and the chamber 17 is located on the extension line of the tangent line of the outer edge of the impeller, so that the liquid entering the chamber 17 from the first channel 11 acts completely and directly on the impeller, the communication between the second channel 12 and the chamber 17 is located on the radial extension line of the portion of the flowmeter body 100 in contact with the liquid, as an example, the impeller, the second channel 12 is located on the opposite side of the first channel 11, and the communication between the second channel 12 and the chamber 17 is located on the extension line of the diameter of the impeller.
The first channel 11, the third channel 13 and the fourth channel 14 form a T-shaped tee structure, the communication position of the first channel 11, the third channel 13 and the fourth channel 14 is a first communication position, and the first valve selectively seals the first channel 11 or seals the fourth channel 14; the second channel 12, the fifth channel 15, and the sixth channel 16 form a T-shaped three-way structure, the communication between the three is a second communication, and the second valve selectively closes the second channel 12 or closes the sixth channel 16. It should be noted that the T-shaped three-way structure is described herein as an example, in practical applications, the three are not necessarily connected at one point, and if the connection between the three is not at one point, the structures of the first valve and the second valve are also adapted.
To further optimize the structure of the present invention, we provide three different embodiments to illustrate the structure and mounting location of the first and second valves. First, in the first embodiment and the second embodiment, we use a rotating manner to change the flow path of the liquid.
When both the first valve 3a and the second valve 4a are arranged in the body part 1, the first valve 3a extends through the body part 1 into a first communication point, and the second valve 4a extends through the body part 1 into a second communication point;
The structure of the first valve 3a is the same as that of the second valve 4a, the principle is the same, each of the first sealing post 31 with a C-shaped groove on the side wall, the sealing ring 32 arranged on the first sealing post 31, the sliding sleeve 33 sleeved on the first sealing post 31 and positioned between the C-shaped groove and the sealing ring 32, and the knob 34 arranged at the end part of the first sealing post 31 are formed, the outer wall of the body part 1 is provided with a through hole penetrating to the first communicating position and the second communicating position, the through hole is provided with a protruding mounting pipe 18 with external threads, and a gland 19 in threaded fit with the mounting pipe 18, and by taking the first valve 3a as an example, the opening diameter of the C-shaped groove of the first sealing post 31 positioned in the first communicating position is the same as the inner diameters of the first channel 11, the third channel 13 and the fourth channel 14, and when the two ends of the C-shaped groove communicate the first channel 11 with the third channel 13, the fourth sealing post 14 seals the side wall 14 of the first sealing post 31. With the rotation of the first valve 3a, when one end of the C-shaped groove is communicated with the fourth channel 14, the opening of the C-shaped groove is opposite to the third channel 13, as shown in fig. 4, at this time, the side wall of the first sealing post 31 seals the first channel 11, the gland 19 is sleeved on the first sealing post 31, the inner surface of the gland 19 is abutted with one end of the sealing ring 32, the other end of the sealing ring 32 is abutted with one end of the sliding sleeve 33, and the sliding sleeve 33 is located in the mounting tube 18. When the first valve 3a is adjusted, the gland 19 is screwed first, the compression of the gland 19 to the sealing ring 32 is released, so that the first sealing column 31 can rotate, then the sliding sleeve 33 is positioned in the mounting tube 18 and below the sealing ring 32, the sealing effect is achieved, friction between the first sealing column 31 and the inner wall of the mounting tube 18 can be avoided, and the service life of the first sealing column 31 is prolonged. The first sealing column 31 is rotated through the knob 34, so that the direction of the C-shaped groove is adjusted, the liquid flow path is selected, and after the C-shaped groove is adjusted to a proper position, the gland 19 is screwed, so that the first sealing column 31 can be compressed by the gland 19, and the positioning function of the first sealing column 31 is realized.
In the first embodiment, we provide a specific structure of the first valve 3a and the second valve 4a, although the structure is simple, there is a problem that the impact force caused by the liquid which can be borne by the C-shaped groove is limited, especially when the opening of the C-shaped groove faces the third channel 13 after the flowmeter body 100 is sealed, as shown in fig. 4, the liquid pressure directly acts in the C-shaped groove, if the pressure is too large, the C-shaped groove is easily bent and deformed, as shown in fig. 2 and 5, the first sealing post 31 is only connected by a small part at the position of the C-shaped groove, when the gland 19 is screwed, the C-shaped groove is bent and deformed if the force is too large, resulting in a lower service life of the first sealing post 31, so we optimize the structures of the first valve 3a and the second valve 4a, the first valves 3b,3C have the same structure as the second valves 4b,4C, and are composed of a second sealing post 41 provided with a driving rod 42 and a transmission device for driving the driving rod 42 to rotate or translate, and the improvement on the structure can correspond to the structure in the first embodiment, namely, the second sealing post 41 corresponds to a C-shaped groove of the first sealing post 31 (the two structures are different and only correspond to the description), the effect is to selectively close and open a channel, the driving rod 42 corresponds to the first sealing post 31, the effect is to drive the second sealing post 41 to move (the rotation of the first sealing post 31 drives the C-shaped groove to rotate), the transmission device corresponds to the assembly of the mounting tube 18, the gland 19, the sliding sleeve 33, the sealing ring 32 and the knob 34, merely to illustrate that the transmission means may be of prior art capable of rotating or translating the second sealing post 41 by means of the driving rod 42. The driving rod 42 is disposed along a central axis of the second sealing column 41, a connection end of the second sealing column 41 and the driving rod 42 is an inclined plane, and a liquid flow path is divided by the inclined plane;
A second embodiment of the first and second valves, in which the liquid flow path is changed in a rotary manner as in the first embodiment, in which the first valve 3b and the second valve 4b are both provided in the body portion 1, the first valve 3b extending through the body portion 1 into the first communication point, and the second valve 4b extending through the body portion 1 into the second communication point.
When the flowmeter body 100 needs to be disassembled and assembled and maintained, the second sealing column 41 of the first valve 3b is rotated by the transmission device, the side wall of the second sealing column 41 seals the first channel 11, the side wall of the second sealing column 41 of the second valve 4b seals the second channel 12, at the moment, liquid impacts on an inclined plane from the third channel 13 and is diverted to flow to the fourth channel 14, the second valve 4b is processed, and the liquid impacts on the inclined plane from the sixth channel 16 and is diverted to flow to the fifth channel 15.
When the flowmeter body 100 is used, the side wall of the second sealing post 41 of the first valve 3b seals the fourth channel 14, the side wall of the second sealing post 41 of the second valve 4b seals the sixth channel 16, at this time, liquid enters from the third channel 13, flows through the inclined plane and enters the first channel 11, the second valve 4b is processed, and liquid enters from the second channel 12, flows through the inclined plane and enters the fifth channel 15.
In this embodiment we have still used a rotary way to change the liquid flow path but the difference is that by eliminating the C-shaped groove, the bearing capacity of the first valve 3b and the second valve 4b is increased, increasing the service life, but the rotary design results in a part of the second sealing post 41 being located in the first and second communication and always being impacted by the liquid.
To this end, based on the above-mentioned valve structure, we have further optimized the positioning and manner of the valves so as to provide a third embodiment, wherein the first valve 3c and the second valve 4c are both disposed on the bypass portion 2, the first valve 3c extends through the bypass portion 2 and into the fourth channel 14, and the second valve 4c extends through the bypass portion 2 and into the sixth channel 16. The second sealing post 41 of the first valve 3c is located in the fourth channel 14 and the second sealing post 41 of the second valve 4c is located in the sixth channel 16. In this embodiment, we change the first valve 3c and the second valve 4c to the structure of insertion, and the inclined surfaces thereof are located in the seventh channel 21, because the flowmeter body 100 is in the normal state, so in order to reduce the damage of the liquid to the valve, we store the second sealing post 41 in the seventh channel 21 as a whole, during daily use, the liquid will flow directly from the third channel 13 into the first channel 11, directly from the second channel 12 into the fifth channel 15, without being blocked by the second sealing post 41 during the period, and will not affect the liquid flowing speed, when the flowmeter body 100 needs to be closed, only the first valve 3c and the second valve 4c need to be pushed into the first communication place and the second communication place, after the pushing, the side wall of the second sealing post 41 will seal the first channel 11 and the second channel 12 as in the third embodiment, after the liquid enters through the third channel 13, the liquid will smoothly enter the fourth channel 14 under the guidance of the inclined surfaces, and the second valve 4c will be treated as in the same. By guiding the inclined surface, the impact of the liquid on the valve can be effectively reduced, and the second sealing column 41 can be subjected to the liquid impact only when the flowmeter body 100 is disassembled and assembled and maintained, so that the service life of the valve can be greatly prolonged.
In the first embodiment and the second embodiment, there is a problem of synchronous opening and closing, for example, if the first valve closes the first channel 11 and the second valve does not open the sixth channel 16 in time, the liquid system is interrupted, so two valves are generally operated simultaneously, and in the third embodiment, although there is a problem of synchronous opening, the two valves are only required to be in an active state before the flow path is changed because the two valves are in an inserted structural design, so when the first valve 3c is inserted into the first communication place, the liquid pressure also pushes the second valve 4c to be inserted into the second communication place, and therefore, the problem of synchronous opening and closing is not considered in the third embodiment.
Thus, for the first and second embodiments, a synchronization member is added and the mounting positions of the two valves are adjusted, and the first valves 3a,3b and the second valves 4a,4b are located on different surfaces of the body portion 1 from the flowmeter body 100, so that the problem of inconvenience in mounting and dismounting the flowmeter body 100 due to the mounting of the synchronization member is mainly avoided. Limiting structures are arranged on the first valves 3a and 3b and the second valves 4a and 4b, and the cross sections of the limiting structures can be rectangular, triangular or the like with angular shapes, so that the rotation of the first valves and the second valves can drive the synchronous members to rotate. And a synchronizing member is provided on the stopper structure of the first and second valves 3a,3b, 4a,4b, the synchronizing member being composed of a first synchronizing piece 5 provided on the first valve 3a,3b, a second synchronizing piece 6 provided on the second valve 4a,4b, and a transmission piece 7 for connecting the first and second synchronizing pieces 5, 6.
The first synchronizing member 5 is composed of a first insert 51 with a plug and a first groove member 52 with a groove for inserting the plug of the first insert 51, the first insert 51 and the first groove member 52 are respectively provided with first mounting heads 53a,53b for mounting the transmission member 7 and a first through hole with a shape corresponding to the limiting structure, the first insert 51 and the first groove member 52 are respectively connected with the limiting structure through the first through hole, the first mounting heads 53a,53b are respectively provided with first fixing grooves 54a,54b for fixing the transmission member 7, the first fixing grooves 54a of the first insert 51 and the first fixing grooves 54b of the first groove member 52 are oppositely arranged, and the transmission member 7 is connected with the first synchronizing member 5 through the first fixing grooves 54a,54 b.
The second synchronizing member 6 is composed of a second insert 61 with a plug and a second groove member 62 with a groove for inserting the plug of the second insert 61, second mounting heads 63a,63b for mounting the transmission member 7 and second through holes with shapes adapted to the limiting structure are provided on the second insert 61 and the second groove member 62, the second insert 61 and the second groove member 62 are connected with the limiting structure through the second through holes, second fixing grooves 64a,64b for fixing the transmission member 7 are provided on the second mounting heads 63a,63b, the second fixing grooves 64a of the second insert 61 and the second fixing grooves 64b of the second groove member 62 are oppositely arranged, and the transmission member 7 is connected with the second synchronizing member 6 through the second fixing grooves 64a,64 b.
The transmission member 7 is composed of a first end 71 sleeved on the first mounting heads 53a and 53b, a second end 72 sleeved on the second mounting heads 63a and 63b, and two connecting sections 73a and 73b which are arranged in a crossing manner and used for connecting the first end 71 and the second end 72, a first clamping section 74 which is clamped with the first fixing grooves 54a and 54b is arranged on the first end 71, and a second clamping section 75 which is clamped with the second fixing grooves 64a and 64b is arranged on the second end 72.
When the synchronizing member is to be mounted, the first groove 52 of the first synchronizing member 5 is first fitted over the first valve stopper structure through the first through hole, and then the second groove 62 of the second synchronizing member 6 is fitted over the second valve stopper structure through the second through hole. The first end 71 of the driving member 7 is then placed over the first mounting head 53b with the first snap-in section 74 positioned within the first securing slot 54b and the second end 72 is placed over the second mounting head 63b with the second snap-in section 75 positioned within the second securing slot 64 b.
Finally, the first insert 51 and the second insert 61 are sequentially sleeved on the limiting structures of the first valve and the second valve, so that the first mounting head 53a of the first insert 51 is opposite to the first mounting head 53b, the second mounting head 63a of the second insert 52 is opposite to the second mounting head 63b, the first insert 51 is connected with the first groove member 52 through a plug, and the second insert 61 is connected with the second groove member 62 through a plug. The first end 71 is now just clamped by the opposite faces of the first insert 51 from the first channel member 52 and the second end 72 is just clamped by the opposite faces of the second insert 61 from the second channel member 62, as shown in fig. 9. The transmission member 7 is a flexible member, the first end 71, the two connection sections 73a,73b and the second end 72 just form a 8 shape, the first end 71 and the second end 72 are in a double-layer structure, the connection section 73a and the connection section 73b are respectively located on two layers, as shown in fig. 10, the connection section 73a is located on the first layer, one end of the connection section is connected with the left end of the first layer of the first end 71, the other end of the connection section 73a is connected with the right end of the first layer of the second end 72, the left end of the first layer of the second end 72 is connected with the left end of the second clamping section 75, the right end of the second clamping section 75 is connected with one end of the second layer of the second end 72, the other end of the connection section 73b is connected with the right end of the second layer of the first end 71, the left end of the second layer of the first end 71 is connected with the left end of the first clamping section 74, and the right end of the first clamping section 74 is connected with the right end of the first layer of the first end 71, thereby forming a spiral structure with the upper layer and the lower layer 8 shape. When the first valve is rotated, as shown at G, H in fig. 11, the second valve can be driven to rotate synchronously by the flexible transmission member 7 and remain stationary after the rotation is completed. Therefore, the synchronous opening and the synchronous closing of the first valve and the second valve are realized, and the condition that a liquid system is interrupted is avoided.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
Although embodiments of the present invention have been disclosed above, it is not limited to the details and embodiments shown and described, it is well suited to various fields of use for which the invention would be readily apparent to those skilled in the art, and accordingly, the invention is not limited to the specific details and illustrations shown and described herein, without departing from the general concepts defined in the claims and their equivalents.
Claims (10)
1. A bypass flow meter, comprising: a body portion (1) provided with a flowmeter body (100), and a bypass portion (2) connected to the body portion (1); the body part (1) is provided with a chamber (17) for installing a flowmeter body (100), a first channel (11) and a second channel (12) which are communicated with the chamber (17), a third channel (13) and a fourth channel (14) which are communicated with the end part of the first channel (11), a fifth channel (15) and a sixth channel (16) which are communicated with the end part of the second channel (12), the bypass part (2) is provided with a seventh channel (21) for communicating the fourth channel (14) and the sixth channel (16), the communication part of the first channel (11), the third channel (13) and the fourth channel (14) is provided with a first valve (3 a,3b,3 c), and the communication part of the second channel (12), the fifth channel (15) and the sixth channel (16) is provided with a second valve (4 a,4b,4 c);
When the first valve (3 a,3b,3 c) closes the first channel (11) and the second valve (4 a,4b,4 c) closes the second channel (12), liquid enters the fourth channel (14) through the third channel (13) and flows out through the fifth channel (15) after entering the sixth channel (16) through the seventh channel (21);
when the first valve (3 a,3b,3 c) closes the fourth channel (14) and the second valve (4 a,4b,4 c) closes the sixth channel (16), liquid enters the first channel (11) via the third channel (13) and after passing through the flowmeter body (100) in the chamber (17) enters the second channel (12) and then flows out via the fifth channel (15).
2. The bypass flow meter according to claim 1, wherein the portion of the flow meter body (100) in contact with the liquid is located in the chamber (17), the first channel (11) and the second channel (12) are located on opposite sides of the chamber (17), respectively, the communication between the first channel (11) and the chamber (17) is located on an extension of a tangent to the portion of the flow meter body (100) in contact with the liquid, and the communication between the second channel (12) and the chamber (17) is located on a radial extension of the portion of the flow meter body (100) in contact with the liquid.
3. The bypass flow meter according to claim 1, characterized in that the first channel (11), the third channel (13) and the fourth channel (14) form a T-shaped three-way structure, the communication of the three being a first communication, the first valve (3 a,3b,3 c) selectively closing the first channel (11) or closing the fourth channel (14); the second channel (12), the fifth channel (15) and the sixth channel (16) form a T-shaped three-way structure, the communication of the two is a second communication, and the second valve (4 a,4b,4 c) selectively closes the second channel (12) or closes the sixth channel (16).
4. A bypass flow meter according to claim 1, characterized in that the bypass portion (2) is provided with a sealing bore communicating with the seventh channel (21), a sealing element (22) being provided in the sealing bore, the sealing element (22) being detachably connected to the sealing bore.
5. A bypass flow meter according to claim 3, characterized in that the first valve (3 a,3b,3 c) and the second valve (4 a,4b,4 c) are both arranged at the body part (1) or at the bypass part (2);
when both the first valve (3 a,3 b) and the second valve (4 a,4 b) are arranged in the body part (1), the first valve (3 a,3 b) extends through the body part (1) and into a first communication point, and the second valve (4 a,4 b) extends through the body part (1) and into a second communication point;
When both the first valve (3 c) and the second valve (4 c) are arranged in the bypass portion (2), the first valve (3 c) penetrates the bypass portion (2) and extends into the fourth channel (14), and the second valve (4 c) penetrates the bypass portion (2) and extends into the sixth channel (16).
6. Bypass flow meter according to claim 5, characterized in that the first valve (3 a) and the second valve (4 a) are both located on the body part (1), the first valve (3 a) being of the same construction as the second valve (4 a), a first sealing post (31) with a C-shaped groove in its side wall, a sealing ring (32) arranged on the first sealing post (31), a sliding sleeve (33) arranged over the first sealing post (31) between the C-shaped groove and the sealing ring (32), and a knob (34) arranged at the end of the first sealing post (31), the outer wall of the body part (1) being provided with a through-hole penetrating to the first and second communication, and the through-hole being provided with a protruding mounting tube (18) with an external screw thread, and a gland (19) in threaded engagement with the mounting tube (18), the first sealing post (31) extending to the first communication or the second communication, the first sealing post (31) being located at the same diameter as the first communication channel (31) and the first communication channel (31) being located at the same diameter as the first communication channel (11), and the inner surface of the gland (19) is abutted with one end of the sealing ring (32), the other end of the sealing ring (32) is abutted with one end of the sliding sleeve (33), and the sliding sleeve (33) is positioned in the mounting tube (18).
7. The bypass flow meter according to claim 5, characterized in that the first valves (3 b,3 c) are of the same construction as the second valves (4 b,4 c), each being composed of a second sealing post (41) provided with a driving rod (42), and a transmission means for driving the driving rod (42) to rotate or translate, the driving rod (42) being arranged along the central axis of the second sealing post (41), the connection end of the second sealing post (41) with the driving rod (42) being a bevel;
When the first valve (3 b) and the second valve (4 b) are both arranged on the body part (1), the side wall of the second sealing column (41) of the first valve (3 b) selectively closes the first channel (11) or the fourth channel (14), and the side wall of the second sealing column (41) of the second valve (4 b) selectively closes the second channel (12) or the sixth channel (16);
When both the first valve (3 c) and the second valve (4 c) are arranged on the bypass portion (2), the second sealing post (41) of the first valve (3 c) is located in the fourth channel (14), and the second sealing post (41) of the second valve (4 c) is located in the sixth channel (16).
8. Bypass flowmeter according to claim 5, characterized in that the first (3 a,3 b) and the second (4 a,4 b) valves are each located on a different face of the body part (1) than the flowmeter body (100), that the first (3 a,3 b) and the second (4 a,4 b) valves are provided with stop formations and that the stop formations of the first (3 a,3 b) and the second (4 a,4 b) valves are sleeved with synchronizing members consisting of a first synchronizing piece (5) sleeved on the first (3 a,3 b) valve, a second synchronizing piece (6) sleeved on the second (4 a,4 b) valve, and a transmission piece (7) for connecting the first (5) and the second (6) synchronizing piece.
9. The bypass flowmeter of claim 8, wherein the first synchronizing member (5) is composed of a first insert member (51) with a plug and a first groove member (52) with a groove for insertion with the plug of the first insert member (51), first mounting heads (53 a,53 b) for mounting the transmission member (7) are provided on the first insert member (51) and the first groove member (52), and first through holes having shapes adapted to the limiting structure, the first insert member (51) and the first groove member (52) are connected with the limiting structure through the first through holes, first fixing grooves (54 a,54 b) for fixing the transmission member (7) are provided on the first mounting heads (53 a,53 b), first fixing grooves (54 a) of the first insert member (51) and first fixing grooves (54 b) of the first groove member (52) are provided opposite to the transmission member (5 a,54 b), and the first synchronizing members (5) are connected with the first connecting grooves (54 a,5 b);
The second synchronizing member (6) is composed of a second plug member (61) with a plug and a second groove member (62) with a groove for plugging the plug of the second plug member (61), second mounting heads (63 a,63 b) for mounting the transmission member (7) and second through holes with shapes suitable for the limiting structure are arranged on the second plug member (61) and the second groove member (62), second fixing grooves (64 a,64 b) for fixing the transmission member (7) are arranged on the second mounting heads (63 a,63 b), and the second fixing grooves (64 a) of the second plug member (61) and the second fixing grooves (64 b) of the second groove member (62) are oppositely arranged, and the transmission member (7) is connected with the second synchronizing member (6) through the second fixing grooves (64 a,64 b).
10. The bypass flowmeter of claim 9, wherein the transmission member (7) is composed of a first end (71) fitted over the first mounting head (53 a,53 b), a second end (72) fitted over the second mounting head (63 a,63 b), and two connection sections (73 a,73 b) provided in a crossing manner for connecting the first end (71) and the second end (72), a first engagement section (74) engaged with the first fixing groove (54 a,54 b) is provided on the first end (71), and a second engagement section (75) engaged with the second fixing groove (64 a,64 b) is provided on the second end (72).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410088123.9A CN118149937A (en) | 2024-01-22 | 2024-01-22 | Bypass flowmeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410088123.9A CN118149937A (en) | 2024-01-22 | 2024-01-22 | Bypass flowmeter |
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| Publication Number | Publication Date |
|---|---|
| CN118149937A true CN118149937A (en) | 2024-06-07 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410088123.9A Pending CN118149937A (en) | 2024-01-22 | 2024-01-22 | Bypass flowmeter |
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| CN (1) | CN118149937A (en) |
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| CN216483606U (en) * | 2021-11-25 | 2022-05-10 | 天津宇通能源技术检测有限公司 | Metering cylinder connecting structure of ultrasonic calorimeter |
| CN218511811U (en) * | 2022-08-09 | 2023-02-21 | 广州市民渝自动化设备有限公司 | Anti-blocking type electromagnetic flowmeter |
| CN115752626A (en) * | 2022-12-05 | 2023-03-07 | 陕西诺盈自动化仪表有限公司 | Necking type precession vortex flowmeter |
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