CN114508702A - Optimization control method for pressure difference and flow at tail end of main pipe network - Google Patents
Optimization control method for pressure difference and flow at tail end of main pipe network Download PDFInfo
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- CN114508702A CN114508702A CN202210198487.3A CN202210198487A CN114508702A CN 114508702 A CN114508702 A CN 114508702A CN 202210198487 A CN202210198487 A CN 202210198487A CN 114508702 A CN114508702 A CN 114508702A
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- pipe wall
- tail end
- connecting seat
- pressure difference
- flow
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- 238000000034 method Methods 0.000 title claims abstract description 30
- 238000005457 optimization Methods 0.000 title description 2
- 238000001514 detection method Methods 0.000 claims abstract description 51
- 230000007246 mechanism Effects 0.000 claims description 11
- 229920005549 butyl rubber Polymers 0.000 claims description 3
- 239000000565 sealant Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 claims description 2
- 239000000853 adhesive Substances 0.000 claims 1
- 230000001070 adhesive effect Effects 0.000 claims 1
- 230000008859 change Effects 0.000 abstract description 4
- 238000009435 building construction Methods 0.000 abstract description 2
- 230000001105 regulatory effect Effects 0.000 description 4
- 239000012530 fluid Substances 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009530 blood pressure measurement Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D5/00—Protection or supervision of installations
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
The invention relates to the related technical field of building construction, in particular to an optimized control method for the tail end pressure difference and flow of a main pipe network, which is characterized in that the tail end pressure difference and flow of the main pipe network are measured by a detection assembly, the detection assembly comprises a detection assembly body, a rear connecting seat and a front connecting seat, the front connecting seat is an annular plate, and the inner side surface of the front connecting seat is fixedly connected with the front side ends of an outer pipe wall, a middle layer pipe wall and an inner layer pipe wall; through setting up by the detection assembly body, the detection assembly that back connecting seat and preceding connecting seat combination constitute, and constitute through setting the detection assembly body to by outer pipe wall, middle level pipe wall, inlayer pipe wall and elastic layer combination, thereby exert pressure to the elastic layer through pressure among the inlayer pipe wall, thereby arouse the change of atmospheric pressure among the air cavity, thereby realize detecting the terminal pressure of the net of being responsible for, thereby better regulate and control the whole pipe pressure of the net of being responsible for, thereby effectively guarantee the steady operation of main pipe net.
Description
Technical Field
The invention relates to the technical field related to building construction, in particular to an optimal control method for the pressure difference and the flow of the tail end of a main pipe network.
Background
For water pipe, compressed air, gas, etc. networks, the end pressure refers to the pressure in the rearmost portion of the pipe in a network system. If the pipe network system is large, the pressure at the supply end is too low, and when the medium passes through the pipe network, the pressure at the tail end is low or zero due to the pressure loss of the medium passing through the pipe network. Therefore, the supply pressure of the pipe network is determined according to the scale of the pipe network system or the number of the using points, but the traditional detection structure cannot well monitor the pipe pressure at the tail end of the pipeline, so that the whole pressure of the pipe network cannot be adjusted in time, and the normal operation of the pipe network is influenced.
Disclosure of Invention
The invention aims to provide an optimal control method for the pressure difference and the flow at the tail end of a main pipe network, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: the optimal control method of the pressure difference and the flow at the tail end of the main pipe network is to measure the pressure difference at the tail end of the main pipe network through a detection assembly, and the detection assembly comprises the following steps:
the detection assembly comprises a detection assembly body, a detection assembly body and a detection assembly body, wherein the detection assembly body is formed by combining an outer pipe wall, a middle layer pipe wall, an inner layer pipe wall and an elastic layer, a gap is reserved between the outer pipe wall and the middle layer pipe wall to form an air cavity, the elastic layer is clamped between the middle layer pipe wall and the inner layer pipe wall, a first through hole is formed in the middle layer pipe wall, and a second through hole is formed in the inner layer pipe wall;
the rear connecting seat is of an annular seat body structure, an annular cavity is formed in the seat body, the annular cavity is communicated with the air cavity through an air hole, an installation groove is formed in the bottom surface of the annular cavity, a wiring groove is formed in the bottom surface of the installation groove, and a pressure detection mechanism is arranged in the installation groove;
the front connecting seat is an annular plate, and the inner side surface of the front connecting seat is fixedly connected with the front side ends of the outer pipe wall, the middle layer pipe wall and the inner layer pipe wall.
Preferably, the connection positions of the front connection seat, the rear connection seat and the detection assembly body are sealed through sealant.
Preferably, the outer pipe wall, the middle layer pipe wall and the inner layer pipe wall are all rigid pipes, and the first through holes in the middle layer pipe wall and the second through holes in the inner layer pipe wall are correspondingly arranged.
Preferably, the elastic layer is a butyl rubber tube, and the contact positions of the elastic layer with the tube wall of the middle layer and the tube wall of the inner layer are fixedly glued.
Preferably, when the air pressure in the air cavity is in a normal state, the air pressure value is greater than a standard atmospheric pressure, and the elastic layer is extruded into the tube cavity of the inner-layer tube wall at the moment.
Preferably, the pressure detection mechanism is composed of a piezoresistor, a connecting ring, a return spring, a connecting plate, a piston, a connecting seat, a connecting spring and a supporting plate.
Preferably, the piezoresistor and the connecting ring are fixedly connected to the bottom of the mounting groove, the connecting plate is connected with the connecting ring through a return spring, the piston is connected with the connecting plate and movably arranged in the mounting groove, the connecting seat is fixedly connected with the connecting plate, and the supporting plate is connected with the connecting seat through a connecting spring.
Preferably, when the return spring and the connecting spring are both in the return state, the support plate and the piezoresistor are arranged in a leaning manner.
Preferably, the piezoresistor is connected with a control system through a wire in an electric signal mode, and the wire penetrates through the wiring groove to be arranged.
Preferably, the side wall of the wiring groove is provided with a connecting air hole, the other end of the connecting air hole is communicated with the bottom surface of the mounting groove, and the port of the connecting air hole, the piezoresistor and the connecting ring are arranged in a staggered mode.
Compared with the prior art, the invention has the beneficial effects that:
1. the detection assembly is formed by combining the detection assembly body, the rear connecting seat and the front connecting seat, and the detection assembly body is formed by combining the outer pipe wall, the middle pipe wall, the inner pipe wall and the elastic layer, so that the elastic layer is pressed by the pressure in the inner pipe wall, the change of the air pressure in the air cavity is caused, the detection of the pressure at the tail end of the main pipe network is realized, the integral pipe pressure of the main pipe network is better regulated and controlled, and the stable operation of the main pipe network is effectively ensured;
2. the air pressure value in the air cavity is set to be larger than a standard atmospheric pressure, so that when the air cavity fails in sealing performance, the air cavity can be found and remedied, and the reliability of the whole structure of the air cavity is ensured;
3. and through setting up the pressure measurement mechanism who comprises piezo-resistor, go-between, reset spring, connecting plate, piston, connecting seat, connecting spring and backup pad combination to through the effect of connecting spring and backup pad, with the piezo-resistor that guarantees the backup pad can be stable and exert force, thereby guarantee its structure testing process's accuracy.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a half sectional view of the body of the inspection assembly of the present invention;
FIG. 3 is an enlarged view of the structure at A in FIG. 2;
FIG. 4 is a half sectional view of the rear connecting seat of the present invention;
FIG. 5 is an enlarged view of the structure at B in FIG. 4;
FIG. 6 is an enlarged view of the structure at C in FIG. 4;
fig. 7 is a schematic view of a pressure detection mechanism.
In the figure: the detection assembly comprises a detection assembly body 1, a rear connecting seat 2, a front connecting seat 3, an outer pipe wall 4, a middle pipe wall 5, an inner pipe wall 6, an elastic layer 7, an air cavity 8, an annular cavity 9, an air hole 10, a wiring groove 12, a pressure detection mechanism 13, a connecting air hole 14, a piezoresistor 15, a connecting ring 16, a return spring 17, a connecting plate 18, a piston 19, a connecting seat 20, a connecting spring 21, a supporting plate 22, a first through hole 23 and a second through hole 24.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the 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 invention.
Referring to fig. 1-7, the present invention provides a technical solution: the optimal control method of the pressure difference and the flow at the tail end of the main pipe network is to measure the pressure difference at the tail end of the main pipe network through a detection assembly, and the detection assembly comprises the following steps:
the detection assembly comprises a detection assembly body 1, wherein the detection assembly body 1 is formed by combining an outer pipe wall 4, a middle pipe wall 5, an inner pipe wall 6 and an elastic layer 7, a gap is reserved between the outer pipe wall 4 and the middle pipe wall 5 to form an air cavity 8, the elastic layer 7 is clamped between the middle pipe wall 5 and the inner pipe wall 6, a first through hole 23 is formed in the middle pipe wall 5, and a second through hole 24 is formed in the inner pipe wall 6;
the rear connecting seat 2 is of an annular seat body structure, an annular cavity 9 is formed in the seat body, the annular cavity 9 is communicated with an air cavity 8 through an air hole 10, a mounting groove is formed in the bottom surface of the annular cavity 9, a wiring groove 12 is formed in the bottom surface of the mounting groove, and a pressure detection mechanism 13 is arranged in the mounting groove;
preceding connecting seat 3, preceding connecting seat 3 is an annular plate, and the medial surface and the outer pipe wall 4 of preceding connecting seat 3, middle level pipe wall 5, the preceding side fixed connection of inlayer pipe wall 6, by detection component body 1 through the setting, the detection component that back connecting seat 2 and preceding connecting seat 3 combination constitute, and through setting detection component body 1 to by outer pipe wall 4, middle level pipe wall 5, inlayer pipe wall 6 and elastic layer 7 combination constitute, thereby exert pressure to elastic layer 7 through pressure among the inlayer pipe wall 6, thereby arouse the change of atmospheric pressure among the air cavity 8, thereby realize detecting the terminal pressure of the net of being responsible, thereby better regulating and controlling the whole pipe pressure of the net of being responsible, thereby effectively guarantee the steady operation of main pipe net.
The connecting positions of the front connecting seat 3, the rear connecting seat 2 and the detection assembly body 1 are sealed by sealant;
the outer pipe wall 4, the middle layer pipe wall 5 and the inner layer pipe wall 6 are all rigid pipes, and the first through holes 23 on the middle layer pipe wall 5 and the second through holes 24 on the inner layer pipe wall 6 are correspondingly arranged;
the elastic layer 7 is a butyl rubber tube, and the contact positions of the elastic layer 7 with the middle layer tube wall 5 and the inner layer tube wall 6 are fixedly glued;
when the air pressure in the air cavity 8 is in a normal state, the air pressure value is greater than a standard atmospheric pressure, the elastic layer 7 is extruded into the tube cavity of the inner tube wall 6, the air pressure value in the air cavity 8 is set to be greater than the standard atmospheric pressure, and therefore when the air cavity 8 fails in sealing performance, the air cavity 8 can be found and remedied, and the reliability of the whole structure of the air cavity is guaranteed;
the pressure detection mechanism 13 is composed of a piezoresistor 15, a connecting ring 16, a return spring 17, a connecting plate 18, a piston 19, a connecting seat 20, a connecting spring 21 and a supporting plate 22;
the piezoresistor 15 and the connecting ring 16 are fixedly connected at the bottom of the mounting groove, the connecting plate 18 is connected with the connecting ring 16 through a return spring 17, the piston 19 is connected with the connecting plate 18, and the piston 19 is movably arranged in the mounting groove, the connecting seat 20 is fixedly connected with the connecting plate 18, the supporting plate 22 is connected with the connecting seat 20 through the connecting spring 21, when the return spring 17 and the connecting spring 21 are both in the reset state, the support plate 22 and the piezoresistor 15 are arranged in a closed way, and the pressure detection mechanism 13 which is composed of the piezoresistor 15, the connecting ring 16, the return spring 17, the connecting plate 18, the piston 19, the connecting seat 20, the connecting spring 21 and the support plate 22 is arranged, therefore, the supporting plate 22 can stably apply force to the piezoresistor 15 under the action of the connecting spring 21 and the supporting plate 22, so that the accuracy of the structure detection process is ensured;
the piezoresistor 15 is in electrical signal connection with a control system through a wire, and the wire passes through the wiring groove 12 to be arranged;
a connecting air hole 14 is formed in the side wall of the wiring groove 12, the other end of the connecting air hole 14 is communicated with the bottom surface of the mounting groove, and the port of the connecting air hole 14, the piezoresistor 15 and the connecting ring 16 are arranged in a staggered mode, so that the pressure balance in the mounting cavity is guaranteed;
the working principle is as follows: by arranging the detection assembly formed by combining the detection assembly body 1, the rear connecting seat 2 and the front connecting seat 3, and arranging the detection assembly body 1 to be formed by combining the outer pipe wall 4, the middle pipe wall 5, the inner pipe wall 6 and the elastic layer 7, the elastic layer 7 is pressed by the pressure in the inner pipe wall 6, so that the change of the air pressure in the air cavity 8 is caused, the detection of the pressure at the tail end of the main pipe network is realized, the whole pipe pressure of the main pipe network is better regulated and controlled, the stable operation of the main pipe network is effectively ensured, and by arranging the pressure detection mechanism 13 formed by combining the piezoresistor 15, the connecting ring 16, the reset spring 17, the connecting plate 18, the piston 19, the connecting seats 20, the connecting spring 21 and the supporting plate 22, the stable force application of the piezoresistor 15 by the connecting spring 21 and the supporting plate 22 is ensured, thereby guarantee the accuracy of its structure testing process, during the in-service use, when the fluid passes through from among the determine module body 1, its elastic layer 7, thereby lead to among the air cavity 8 atmospheric pressure value grow, then promote piston 19 backward motion, thereby let piezoresistor 15's atress increase, and piezoresistor 15's atress is too big, control system control reduces the input fluid pressure value of being responsible for the net head section, and when piezoresistor 15's atress was too little, control system control increases the input fluid pressure value of being responsible for the net head section, thereby realize the mesh of regulating and controlling to the inside pipe of being responsible for the net.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The optimal control method of the pressure difference and the flow at the tail end of the main pipe network is characterized in that the pressure difference and the flow at the tail end of the main pipe network are measured through a detection assembly, and the method comprises the following steps: the detection assembly comprises:
the detection assembly comprises a detection assembly body (1), wherein the detection assembly body (1) is formed by combining an outer pipe wall (4), a middle layer pipe wall (5), an inner layer pipe wall (6) and an elastic layer (7), a gap is reserved between the outer pipe wall (4) and the middle layer pipe wall (5) to form an air cavity (8), the elastic layer (7) is clamped between the middle layer pipe wall (5) and the inner layer pipe wall (6), a first through hole (23) is formed in the middle layer pipe wall (5), and a second through hole (24) is formed in the inner layer pipe wall (6);
the rear connecting seat (2) is of an annular seat body structure, an annular cavity (9) is formed in the seat body, the annular cavity (9) is communicated with the air cavity (8) through an air hole (10), a mounting groove is formed in the bottom surface of the annular cavity (9), a wiring groove (12) is formed in the bottom surface of the mounting groove, and a pressure detection mechanism (13) is arranged in the mounting groove;
the connecting structure comprises a front connecting seat (3), wherein the front connecting seat (3) is an annular plate, and the inner side surface of the front connecting seat (3) is fixedly connected with the front side ends of an outer pipe wall (4), a middle-layer pipe wall (5) and an inner-layer pipe wall (6).
2. The method for optimally controlling the pressure difference and the flow at the tail end of the main pipe network according to claim 1, wherein the method comprises the following steps: the connecting positions of the front connecting seat (3), the rear connecting seat (2) and the detection assembly body (1) are sealed through sealant.
3. The method for optimally controlling the pressure difference and the flow at the tail end of the main pipe network according to claim 1, wherein the method comprises the following steps: the outer pipe wall (4), the middle layer pipe wall (5) and the inner layer pipe wall (6) are all rigid pipes, and the first through holes (23) in the middle layer pipe wall (5) and the second through holes (24) in the inner layer pipe wall (6) are correspondingly arranged.
4. The method for optimally controlling the pressure difference and the flow at the tail end of the main pipe network according to claim 3, wherein the method comprises the following steps: the elastic layer (7) is a butyl rubber pipe, and the contact positions of the elastic layer (7) and the middle layer pipe wall (5) and the inner layer pipe wall (6) are fixedly connected in an adhesive manner.
5. The method for optimally controlling the pressure difference and the flow at the tail end of the main pipe network according to claim 4, wherein the method comprises the following steps: when the air pressure in the air cavity (8) is in a normal state, the air pressure value is larger than a standard atmospheric pressure, and the elastic layer (7) is extruded into the tube cavity of the inner-layer tube wall (6).
6. The method for optimally controlling the pressure difference and the flow at the tail end of the main pipe network according to claim 5, wherein the method comprises the following steps: the pressure detection mechanism (13) is formed by combining a piezoresistor (15), a connecting ring (16), a return spring (17), a connecting plate (18), a piston (19), a connecting seat (20), a connecting spring (21) and a supporting plate (22).
7. The method for optimally controlling the pressure difference and the flow at the tail end of the main pipe network according to claim 6, wherein the method comprises the following steps: piezoresistor (15), go-between (16) equal fixed connection are at the tank bottom of mounting groove, connecting plate (18) are connected with go-between (16) through reset spring (17), piston (19) are connected with connecting plate (18), and piston (19) activity sets up among the mounting groove, connecting seat (20) and connecting plate (18) fixed connection, backup pad (22) are connected with connecting seat (20) through connecting spring (21).
8. The method for optimally controlling the pressure difference and the flow at the tail end of the main pipe network according to claim 7, wherein the method comprises the following steps: when the reset spring (17) and the connecting spring (21) are both in a reset state, the support plate (22) and the piezoresistor (15) are arranged in a leaning manner.
9. The method for optimally controlling the pressure difference and the flow at the tail end of the main pipe network according to claim 8, wherein the method comprises the following steps: the piezoresistor (15) is in electric signal connection with a control system through a wire, and the wire penetrates through the wiring groove (12) to be arranged.
10. The method for optimally controlling the pressure difference and the flow at the tail end of the main pipe network according to claim 9, wherein the method comprises the following steps: the side wall of the wiring groove (12) is provided with a connecting air hole (14), the other end of the connecting air hole (14) is communicated with the bottom surface of the mounting groove, and the port of the connecting air hole (14), the piezoresistor (15) and the connecting ring (16) are arranged in a staggered mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210198487.3A CN114508702A (en) | 2022-03-01 | 2022-03-01 | Optimization control method for pressure difference and flow at tail end of main pipe network |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210198487.3A CN114508702A (en) | 2022-03-01 | 2022-03-01 | Optimization control method for pressure difference and flow at tail end of main pipe network |
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| CN114508702A true CN114508702A (en) | 2022-05-17 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005043096A (en) * | 2003-07-23 | 2005-02-17 | Yokohama Rubber Co Ltd:The | Structure for mounting air-pressure sensor |
| CN104595726A (en) * | 2015-01-19 | 2015-05-06 | 傅永财 | Natural gas pipeline system having leakage warming function |
| CN110007363A (en) * | 2019-05-13 | 2019-07-12 | 国网冀北电力有限公司承德供电公司 | A kind of underground cable report damage system |
| CN113639581A (en) * | 2021-09-13 | 2021-11-12 | 青岛西海岸市政新能源热力有限公司 | Back washing device of plate heat exchanger |
| CN215573138U (en) * | 2021-09-06 | 2022-01-18 | 青岛国琴机械铸造有限公司 | Fire hydrant flow monitoring device capable of stably monitoring |
| CN215639654U (en) * | 2021-09-16 | 2022-01-25 | 武汉天煜达精密机械有限公司 | Intelligent digital water level gauge |
-
2022
- 2022-03-01 CN CN202210198487.3A patent/CN114508702A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005043096A (en) * | 2003-07-23 | 2005-02-17 | Yokohama Rubber Co Ltd:The | Structure for mounting air-pressure sensor |
| CN104595726A (en) * | 2015-01-19 | 2015-05-06 | 傅永财 | Natural gas pipeline system having leakage warming function |
| CN110007363A (en) * | 2019-05-13 | 2019-07-12 | 国网冀北电力有限公司承德供电公司 | A kind of underground cable report damage system |
| CN215573138U (en) * | 2021-09-06 | 2022-01-18 | 青岛国琴机械铸造有限公司 | Fire hydrant flow monitoring device capable of stably monitoring |
| CN113639581A (en) * | 2021-09-13 | 2021-11-12 | 青岛西海岸市政新能源热力有限公司 | Back washing device of plate heat exchanger |
| CN215639654U (en) * | 2021-09-16 | 2022-01-25 | 武汉天煜达精密机械有限公司 | Intelligent digital water level gauge |
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