CN115083255A - Demonstration device for observing water and air flow states of building drainage pipeline system - Google Patents
Demonstration device for observing water and air flow states of building drainage pipeline system Download PDFInfo
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- CN115083255A CN115083255A CN202210882109.7A CN202210882109A CN115083255A CN 115083255 A CN115083255 A CN 115083255A CN 202210882109 A CN202210882109 A CN 202210882109A CN 115083255 A CN115083255 A CN 115083255A
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B25/00—Models for purposes not provided for in G09B23/00, e.g. full-sized devices for demonstration purposes
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B25/00—Models for purposes not provided for in G09B23/00, e.g. full-sized devices for demonstration purposes
- G09B25/04—Models for purposes not provided for in G09B23/00, e.g. full-sized devices for demonstration purposes of buildings
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
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Abstract
The invention discloses a demonstration device for observing the water and air flow states of a building drainage pipeline system, which comprises a water feeding system, a drainage pipeline system, an electric power supply system and a signal transmission and display system, wherein the water feeding system is connected with the drainage pipeline system through a water pipe; go up water system and include bottom water tank, water pump, third valve, flowmeter and water-supply line, be equipped with the experimental water of drainage in the bottom water tank, the water pump is located inside the bottom water tank, the one end fixed connection of water-supply line is at the play water end of water pump, third valve and flowmeter are all installed on the water-supply line, fixedly connected with backflow pipeline on the lateral wall of water-supply line, backflow pipeline's bottom is located the bottom water tank, be equipped with the backflow valve on the backflow pipeline. The invention can demonstrate and observe various phenomena of building drainage in the pipeline, is convenient for students to observe the water flow state, and is helpful for mastering the change rule of water and air flow states in the building drainage pipeline.
Description
Technical Field
The invention relates to the technical field of building simulation teaching, in particular to a device for observing and demonstrating water and air flow states of a building drainage pipeline system.
Background
In the building field, a very key knowledge system, namely a water supply and drainage system of a building is related, a traditional teaching method is mainly based on written teaching, theoretical knowledge is complex and is difficult to master skillfully, and a student is difficult to know the water supply and drainage system of the building integrally, so that a specific simulation device is combined to teach in a real object to accelerate the cognition of the student on the system; however, the existing practical training model has the problem that a water supply and drainage system is incomplete, so that comprehensive teaching of the water supply and drainage system cannot be realized, and teaching dead angles still exist.
Disclosure of Invention
The invention provides a demonstration device for observing the water and air flow states of a building drainage pipeline system, which aims to solve the problems in the background technology.
In order to achieve the purpose, the invention adopts the following technical scheme:
a water and air flow state observation and demonstration device for a building drainage pipeline system comprises a water supply system, a drainage pipeline system, an electric power supply system and a signal transmission and display system;
the water supply system comprises a lower water tank, a water pump, a third valve, a flowmeter and a water supply pipeline, wherein drainage test water is arranged in the lower water tank, the water pump is positioned in the lower water tank, one end of the water supply pipeline is fixedly connected to the water outlet end of the water pump, the third valve and the flowmeter are both arranged on the water supply pipeline, a return pipeline is fixedly connected to the side wall of the water supply pipeline, the bottom end of the return pipeline is positioned in the lower water tank, and a return valve is arranged on the return pipeline;
the drainage pipeline system comprises an upper water tank, a double water seal pipeline, a common drainage pipeline, an annular vent pipeline, an induced siphon drainage pipeline and a drainage main pipe;
the other end of the upper water pipeline is positioned in the upper water tank, one end of the double water seal pipeline is provided with a first lifting type drainage device, the other end of the double water seal pipeline is communicated with a main drainage pipe, the first lifting type drainage device is installed on the bottom side wall in the upper water tank, the double water seal pipeline is provided with an upper water seal and a lower water seal, a vent pipe is arranged on the side wall of the pipeline between the upper water seal and the lower water seal and is arranged in an arc pipe which is bent upwards, one end of the vent pipe is in threaded connection with a cover cap, and when the cover cap is opened, the vent pipe plays a role of ventilation; when the cap is closed, the tightness of the double water seal pipeline can be maintained;
one end of the common drainage pipeline is provided with a second lifting type drainage device, the other end of the common drainage pipeline is communicated with the drainage main pipe, the second lifting type drainage device is installed on the bottom side wall in the upper water tank, and the common drainage pipeline is provided with a drainage water seal;
one end of the annular air duct is connected with the side wall of the upper water tank, the other end of the annular air duct is communicated with the drainage header pipe, a first valve is arranged on the annular air duct, an air suction pipe arranged in an arc shape is fixedly connected to the side wall of the annular air duct, a second valve is arranged at one end of the air suction pipe, and an air suction valve is arranged at one end of the second valve;
one end of the induced siphon drainage pipeline is connected with the drainage main pipe, and a siphon water seal is arranged on the induced siphon drainage pipeline;
the drainage main pipe comprises a drainage transverse pipe and a drainage vertical pipe, the drainage vertical pipe is vertically and fixedly connected to one end of the drainage transverse pipe, the bottom end of the drainage vertical pipe is positioned above the lower water tank, and the top end of the drainage vertical pipe is provided with a vent communicated with the outside air;
movable joints are arranged at the pipeline joints of the main drainage pipe, the double water seal pipeline, the common drainage pipeline, the annular vent pipeline and the induced siphon drainage pipeline, so that the gradient of the main drainage pipe can be adjusted;
the power supply system comprises a water pump control cabinet and a power supply, wherein the water pump control cabinet is respectively connected with a water pump and the power supply;
the signal transmission and display system comprises a first pressure transmitter, a second pressure transmitter, a third pressure transmitter, a fourth pressure transmitter and a signal processor, the first pressure transmitter, the second pressure transmitter, the third pressure transmitter and the fourth pressure transmitter are all electrically connected with the signal processor, the first pressure transmitter is arranged on the side wall of the vertical drainage pipe, the second pressure transmitter is arranged on the side wall of the horizontal drainage pipe, the third pressure transmitter is arranged on the double water seal pipeline, the fourth pressure transmitter is arranged on the common drainage pipeline, the first pressure transmitter, the second pressure transmitter, the third pressure transmitter and the fourth pressure transmitter are respectively used for measuring the pressure in the vertical drainage pipe, the horizontal drainage pipe, the double water seal pipeline and the common drainage pipeline and converting the pressure into an electric signal, and then the pressure signal is sent to the signal processor.
As a further improvement scheme of the technical scheme: the upper water seal, the lower water seal, the siphon water seal and the drainage water seal are formed by connecting a plurality of 45-degree elbows from top to bottom, and pipe caps connected by lines are arranged at the lower positions of the upper water seal, the lower water seal, the siphon water seal and the drainage water seal and used for draining water in the water seals.
As a further improvement scheme of the technical scheme: the water seal depth H of the upper water seal, the lower water seal, the siphon water seal and the drainage water seal is required to be more than or equal to 50 mm.
As a further improvement scheme of the technical scheme: the maximum flow of the water pump is 2L/s, and the water pump corresponds to a 4m water column with a lift.
As a further improvement scheme of the technical scheme: the pipeline materials of the water feeding pipeline, the double water seal pipeline, the common drainage pipeline, the annular vent pipeline, the induced siphon drainage pipeline and the drainage main pipe comprise any one or more of UPVC, PP, glass, organic glass and metal pipes or the combination of other materials.
As a further improvement scheme of the technical scheme: the signal processor is a notebook computer.
As a further improvement scheme of the technical scheme: the power supply may be 220V or 380V.
As a further improvement scheme of the technical scheme: the first lifting type drainage device is used for cutting off or opening water flow from the upper water tank to the double water seal pipeline; the second lifting type drainage device is used for cutting off or opening the water flow from the upper water tank to the common drainage pipeline.
As a further improvement scheme of the technical scheme: the first valve, the second valve and the third valve are ball valves or gate valves.
As a further improvement scheme of the technical scheme: the pressure measurement ranges of the first pressure transmitter, the second pressure transmitter, the third pressure transmitter and the fourth pressure transmitter are-500 Pa to +500 Pa.
Compared with the prior art, the invention has the beneficial effects that:
the invention provides a device for observing and demonstrating the water and air flow states of a building drainage pipeline system, which can demonstrate and observe various phenomena of building drainage in a pipeline, is convenient for students to observe water flow state, and is beneficial to mastering the change rule of the water and air flow states in the building drainage pipeline.
The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical solutions of the present invention more clearly understood and to implement them in accordance with the contents of the description, the following detailed description is given with reference to the preferred embodiments of the present invention and the accompanying drawings. The detailed description of the present invention is given in detail by the following examples and the accompanying drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. In the drawings:
FIG. 1 is a schematic structural view of a water and air flow state observation demonstration device for a drainage pipeline system of a building, which is provided by the invention;
FIG. 2 is a schematic diagram showing the depth of the water seal in the present invention.
In the drawings, the components represented by the respective reference numerals are listed below:
1. a water feeding system; 1.1, a lower water tank; 1.2, a water pump; 1.3, a third valve; 1.4, a flow meter; 1.5, a water feeding pipeline; 1.6, a return pipeline; 2. a drainage pipe system; 2.1, feeding a water tank; 2.2, double water seal pipelines; 2.2.1, a first lifting type drainage device; 2.2.2, sealing water; 2.2.3, sealing the water; 2.2.4, a vent pipe; 2.3, a common drainage pipeline; 2.3.1, a second lifting type drainage device; 2.3.1, draining water and sealing; 2.4, an annular vent pipe; 2.4.1, a first valve; 2.4.2, a second valve; 2.4.3, an air suction valve; 2.5, inducing siphon drainage pipelines; 2.5.1, siphon water seal; 2.6, a main drainage pipe; 2.6.1, a vent; 3. a power supply system; 4. a signal transmission and display system; 4.1, a first pressure transmitter; 4.2, a second pressure transmitter; 4.3, a third pressure transmitter; 4.4, a fourth pressure transmitter.
Detailed Description
The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the invention. The invention is described in more detail in the following paragraphs by way of example with reference to the accompanying drawings. Advantages and features of the present invention will become apparent from the following description and from the claims. It is to be noted that the drawings are in a very simplified form and are not to precise scale, which is merely for the purpose of facilitating and distinctly claiming the embodiments of the present invention.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1-2, in an embodiment of the present invention, an observation and demonstration apparatus for water and air flowing states of a building drainage pipeline system includes a water supply system 1, a drainage pipeline system 2, an electric power supply system 3, and a signal transmission and display system 4;
the water supply system 1 comprises a lower water tank 1.1, a water pump 1.2, a third valve 1.3, a flow meter 1.4 and a water supply pipeline 1.5, wherein drainage test water is arranged in the lower water tank 1.1, the water pump 1.2 is positioned in the lower water tank 1.1, one end of the water supply pipeline 1.5 is fixedly connected with the water outlet end of the water pump 1.2, the third valve 1.3 and the flow meter 1.4 are both arranged on the water supply pipeline 1.5, a return pipeline 1.6 is fixedly connected to the side wall of the water supply pipeline 1.5, the bottom end of the return pipeline 1.6 is positioned in the lower water tank 1.1, a return valve is arranged on the return pipeline 1.6, and the return pipeline 1.6 is used for adjusting the water supply flow of the water supply pipeline 1.5;
the drainage pipeline system 2, the drainage pipeline system 2 includes the upper water tank 2.1, the double water seal pipeline 2.2, the ordinary drainage pipeline 2.3, the annular vent pipeline 2.4, the induced siphon drainage pipeline 2.5 and the main drainage pipeline 2.6;
the other end of the upper water pipeline 1.5 is positioned in the upper water tank 2.1, one end of the double water seal pipeline 2.2 is provided with a first lifting type drainage device 2.2.1, the other end of the double water seal pipeline 2.2 is communicated with a main drainage pipe 2.6, the first lifting type drainage device 2.2.1 is installed on the bottom side wall in the upper water tank 2.1, the double water seal pipeline 2.2 is provided with an upper water seal 2.2.2 and a lower water seal 2.2.3, a vent pipe 2.2.4 is arranged on the pipeline side wall between the upper water seal 2.2.2 and the lower water seal 2.2.3, the vent pipe 2.2.4 is arranged in an arc-shaped pipe which is bent upwards, one end of the vent pipe 2.2.4 is connected with a cover cap in a threaded manner, and when the cover cap is opened, the vent pipe 2.2.4 plays a ventilation role; when the cap is closed, the tightness of the double water seal pipeline 2.2 can be maintained;
one end of the common drainage pipeline 2.3 is provided with a second lifting type drainage device 2.3.1, the other end of the common drainage pipeline 2.3 is communicated with a drainage main pipe 2.6, the second lifting type drainage device 2.3.1 is arranged on the bottom side wall in the upper water tank 2.1, and the common drainage pipeline 2.3 is provided with a drainage water seal 2.3.2;
one end of an annular vent pipeline 2.4 is connected with the side wall of the upper water tank 2.1, the other end of the annular vent pipeline 2.4 is communicated with a main drain pipe 2.6, a first valve 2.4.1 is arranged on the annular vent pipeline 2.4, an air suction pipe in arc arrangement is fixedly connected to the side wall of the annular vent pipeline 2.4, a second valve 2.4.2 is arranged at one end of the air suction pipe, and an air suction valve 2.4.3 is arranged at one end of the second valve 2.4.2;
one end of the induced siphon drainage pipeline 2.5 is connected with the drainage main pipe 2.6, and a siphon water seal 2.5.1 is arranged on the induced siphon drainage pipeline 2.5;
the main drainage pipe 2.6 comprises a horizontal drainage pipe and a vertical drainage pipe, the vertical drainage pipe is vertically and fixedly connected to one end of the horizontal drainage pipe, the bottom end of the vertical drainage pipe is positioned above the lower water tank 1.1, the top end of the vertical drainage pipe is provided with a vent 2.6.1 communicated with the outside air, a pipe cap is arranged on the vent 2.6.1, and when the pipe cap is opened, the vent 2.6.1 plays a role in ventilation; when the pipe cap is closed, the tightness of the main drainage pipe (2.6) is maintained;
movable joints are arranged at the pipeline joints of the main drainage pipe 2.6, the double water seal pipeline 2.2, the common drainage pipeline 2.3, the annular vent pipeline 2.4 and the induced siphon drainage pipeline 2.5, so that the gradient of the main drainage pipe 2.6 can be adjusted;
the power supply system 3 comprises a water pump control cabinet and a power supply, the water pump control cabinet is respectively connected with the water pump 1.2 and the power supply, and the power supply can be 220V or 380V;
the signal transmission and display system 4 comprises a first pressure transmitter 4.1, a second pressure transmitter 4.2, a third pressure transmitter 4.3, a fourth pressure transmitter 4.4 and a signal processor, wherein the first pressure transmitter 4.1, the second pressure transmitter 4.2, the third pressure transmitter 4.3 and the fourth pressure transmitter 4.4 are all electrically connected with the signal processor, the first pressure transmitter 4.1 is arranged on the side wall of the vertical drainage pipe, the second pressure transmitter 4.2 is arranged on the side wall of the horizontal drainage pipe, the third pressure transmitter 4.3 is arranged on the double water seal pipe 2.2, the fourth pressure transmitter 4.4 is arranged on the common drainage pipe 2.3, the first pressure transmitter 4.1, the second pressure transmitter 4.2, the third pressure transmitter 4.3 and the fourth pressure transmitter 4.4 are respectively used for measuring the pressure in the vertical drainage pipe, the horizontal drainage pipe, the double water seal pipe 2.2 and the common drainage pipe 2.3 and converting the pressure into an electric signal, and then the pressure signal is sent to a signal processor, and the signal processor is a notebook computer.
Specifically, the upper water seal 2.2.2, the lower water seal 2.2.3, the siphon water seal 2.5.1 and the drain water seal 2.3.1 are formed by connecting a plurality of 45-degree elbows from top to bottom, and pipe caps connected by lines are arranged at the lower positions of the upper water seal 2.2.2, the lower water seal 2.2.3, the siphon water seal 2.5.1 and the drain water seal 2.3.1 and used for draining water in the water seals.
Specifically, the water seal depth H of the upper water seal 2.2.2, the lower water seal 2.2.3, the siphon water seal 2.5.1 and the drainage water seal 2.3.1 is not less than 50mm, and the meaning of the water seal depth is shown in fig. 2.
Specifically, the water pump has a maximum flow of 1.2 and a maximum flow of 2L/s, and corresponds to a 4m water column of the head.
Specifically, the pipeline materials of the water feeding pipeline 1.5, the double water seal pipeline 2.2, the common drainage pipeline 2.3, the annular vent pipeline 2.4, the induced siphon drainage pipeline 2.5 and the drainage main pipe 2.6 comprise any one or more of UPVC, PP, glass, organic glass and metal pipes or the combination of other materials.
Specifically, the first pull-up drainage device 2.2.1 is used for cutting off or opening water flow from the upper water tank 2.1 to the double water seal pipeline 2.2; the second pull-up type drainage device 2.3.1 is used for cutting off or opening the water flow from the upper water tank 2.1 to the common drainage pipeline 2.3, and the first pull-up type drainage device 2.2.1 and the second pull-up type drainage device 2.3.1 can also be replaced by valves.
Specifically, the first valve 2.4.1, the second valve 2.4.2 and the third valve 1.3 are ball valves or gate valves.
Specifically, the pressure measurement ranges of the first pressure transmitter 4.1, the second pressure transmitter 4.2, the third pressure transmitter 4.3 and the fourth pressure transmitter 4.4 are-500 Pa to +500 Pa.
The working principle of the invention is as follows:
1. and (3) demonstrating operation of air pressure distribution in the pipeline:
the first lifting type drainage device 2.2.1 is closed, and the second lifting type drainage device 2.3.1 is opened. And starting the water pump 1.2, and adjusting the opening degree of the third valve 1.3 to enable the flow display range of the flow meter 1.4 to be 0.1-1.0L/s. The pressure transmitter signals of the first pressure transmitter 4.1, the second pressure transmitter 4.2 and the fourth pressure transmitter 4.4 are checked under various combinations of opening and closing of the first valve 2.4.1, opening and closing of the second valve 2.4.2, water filling of the siphon water seal 2.5.1 and the like. And these pressure transmitter signals are plotted as a curve on a laptop computer.
2. And (3) air pressure oscillation demonstration operation in the pipeline:
and closing the first lifting type drainage device 2.2.1, and opening the second lifting type drainage device 2.3.1. And starting the water pump 1.2, and adjusting the opening degree of the third valve 1.3 to enable the flow display range of the flow meter 1.4 to be 0.1-1.0L/s. The pressure transmitter signals of the first pressure transmitter 4.1, the second pressure transmitter 4.2 and the fourth pressure transmitter 4.4 are checked under various combinations of opening and closing of the first valve 2.4.1, opening and closing of the second valve 2.4.2, water filling of the siphon water seal 2.5.1 and the like. And drawing the pressure transmitter signals into a curve on a notebook computer, wherein the abscissa of the curve is time, and the ordinate is pressure.
3. Demonstrating operation of the moving direction of air in the pipeline:
the first valve 2.4.1 and the second valve 2.4.2 are closed, and the siphon seal 2.5.1 is filled with water. The first lifting type drainage device 2.2.1 is opened, and the second lifting type drainage device 2.3.1 is opened. A soft and light paper tape is placed above the vent 2.6.1. And starting the water pump 1.2, and adjusting the opening degree of the third valve 1.3 to enable the flow display range of the flow meter 1.4 to be 0.1-1.0L/s. See if the tape will fall into vent 2.6.1.
4. When the drainage pipeline system has a double water seal device, the demonstration operation of the air resistance phenomenon and the noise generation phenomenon of the drainage pipeline is as follows:
the first valve 2.4.1 and the second valve 2.4.2 are closed, and the siphon seal 2.5.1 is filled with water. The vent of the vent tube 2.2.4 is closed. And closing the second lifting type drainage device 2.3.1 and opening the first lifting type drainage device 2.2.1. And starting the water pump 1.2, and adjusting the opening degree of the third valve 1.3 to enable the flow of the flow meter 1.4 to be 0.10L/s. And the water level changes of the upper water seal 2.2.2 and the lower water seal 2.2.3 are observed, and the abnormal sound of the pipeline is heard at the third pressure transmitter 4.3. A change in the pressure transmitter signal value of the third pressure transmitter 4.3 is looked at.
5. The demonstration operation of observing the self-siphon and the induced siphon phenomenon is as follows:
and closing the first lifting type drainage device 2.2.1, opening the second lifting type drainage device 2.3.1, and filling water into the siphon water seal 2.5.1. And starting the water pump 1.2, and adjusting the opening degree of the third valve 1.3 to enable the flow display range of the flow meter 1.4 to be 0.1-1.0L/s. The water level change of the siphon water seal 2.5.1 is checked under various combinations of opening and closing of the first valve 2.4.1 and opening and closing of the second valve 2.4.2.
6. Observing and comparing the change demonstration operation of the phenomena of the drainage pipeline system before and after the annular vent pipe is opened:
and closing the first lifting type drainage device 2.2.1, opening the second lifting type drainage device 2.3.1 and closing the second valve 2.4.2. The siphon water seal 2.5.1 is filled with water. And starting the water pump 1.2, and adjusting the opening degree of the third valve 1.3 to enable the flow display range of the flow meter 1.4 to be 0.1-1.0L/s. When the first valve 2.4.1 is opened and closed, the water level change of the siphon water seal 2.5.1 is checked. The pressure transmitter signals of the first pressure transmitter 4.1, the second pressure transmitter 4.2 and the fourth pressure transmitter 4.4 are looked at. And drawing the pressure transmitter signals into a curve on a notebook computer, wherein the abscissa of the curve is time, and the ordinate is pressure. Comparing the signal of each pressure transmitter and the change of the water level of the siphon water seal 2.5.1 when the first valve 2.4.1 is opened and closed.
7. Demonstrating the function demonstration operation of the drainage air suction valve:
and closing the first lifting type drainage device 2.2.1, opening the second lifting type drainage device 2.3.1 and closing the first valve 2.4.1. The siphon water seal 2.5.1 is filled with water. And starting the water pump 1.2, and adjusting the opening degree of the third valve 1.3 to enable the flow display range of the flow meter 1.4 to be 0.1-1.0L/s. The second valve 2.4.2 is opened and closed, and the water level change of the siphon water seal 2.5.1 is checked.
The pressure transmitter signals of the first pressure transmitter 4.1, the second pressure transmitter 4.2 and the fourth pressure transmitter 4.4 are looked at. And drawing the pressure transmitter signals into a curve on a notebook computer, wherein the abscissa of the curve is time, and the ordinate is pressure. Comparing the signal of each pressure transmitter and the change of the water level of the siphon water seal 2.5.1 when the first valve 2.4.1 is opened and closed.
8. Gravity flow, pressure flow and the conversion demonstration operation of the gravity flow and the pressure flow are as follows:
the first lifting type drainage device 2.2.1 is closed, and the second lifting type drainage device 2.3.1 is opened. And starting the water pump 1.2, and adjusting the opening degree of the third valve 1.3 to enable the flow display range of the flow meter 1.4 to be 0.05-1.0L/s. And checking the water flow form change at the common drainage pipeline 2.3. And observing the pressure signal change of the fourth pressure transmitter 4.4.
9. The conversion demonstration operation of the wall flow, the water film flow and the plug flow is as follows:
the first lifting type drainage device 2.2.1 is closed, and the second lifting type drainage device 2.3.1 is opened. And starting the water pump 1.2, and adjusting the opening degree of the third valve 1.3 to enable the flow display range of the flow meter 1.4 to be 0.05-1.0L/s. And checking the water flow form change at the common water drainage pipeline 2.3 and the fourth pressure transmitter 4.4. And observing the pressure signal changes of each pressure transmitter.
10. Laminar flow and turbulent flow phenomenon demonstration operation:
and closing the first lifting type drainage device 2.2.1, the second lifting type drainage device 2.3.1, the second valve 2.4.2 and opening the first valve 2.4.1. And a valve is arranged at the lowest position of the main drainage pipe 2.6, and the opening degree of the valve is adjusted. And starting the water pump 1.2, and adjusting the opening degree of the third valve 1.3 to enable the flow display range of the flow meter 1.4 to be 0.05-1.0L/s. And adding color fine water flow at the joint of the annular vent pipeline 2.4 and the upper water tank 2.1, and checking the relation between the flow state of the color fine water flow and the flow value of the flowmeter 1.4.
The foregoing is merely a preferred embodiment of the invention and is not intended to limit the invention in any manner; the present invention may be readily implemented by those of ordinary skill in the art as illustrated in the accompanying drawings and described above; however, those skilled in the art should appreciate that they can readily use the disclosed conception and specific embodiments as a basis for designing or modifying other structures for carrying out the same purposes of the present invention without departing from the scope of the invention as defined by the appended claims; meanwhile, any changes, modifications, and evolutions of the equivalent changes of the above embodiments according to the actual techniques of the present invention are still within the protection scope of the technical solution of the present invention.
Claims (10)
1. A demonstration device for observing the water and air flow states of a building drainage pipeline system is characterized by comprising a water feeding system (1), a drainage pipeline system (2), a power supply system (3) and a signal transmission and display system (4);
the water supply system (1) comprises a lower water tank (1.1), a water pump (1.2), a third valve (1.3), a flowmeter (1.4) and a water supply pipeline (1.5), wherein drainage test water is arranged in the lower water tank (1.1), the water pump (1.2) is positioned in the lower water tank (1.1), one end of the water supply pipeline (1.5) is fixedly connected to the water outlet end of the water pump (1.2), the third valve (1.3) and the flowmeter (1.4) are both arranged on the water supply pipeline (1.5), a return pipeline (1.6) is fixedly connected to the side wall of the water supply pipeline (1.5), the bottom end of the return pipeline (1.6) is positioned in the lower water tank (1.1), and a return valve is arranged on the return pipeline (1.6);
the drainage pipeline system (2) comprises an upper water tank (2.1), a double water seal pipeline (2.2), a common drainage pipeline (2.3), an annular vent pipeline (2.4), an induced siphon drainage pipeline (2.5) and a drainage main pipe (2.6);
the other end of the upper water pipeline (1.5) is positioned in the upper water tank (2.1), one end of the double water seal pipeline (2.2) is provided with a first lifting type drainage device (2.2.1), the other end of the double water seal pipeline (2.2) is communicated with a main drainage pipe (2.6), the first lifting type drainage device (2.2.1) is installed on the bottom side wall in the upper water tank (2.1), the double water seal pipeline (2.2) is provided with an upper water seal (2.2.2) and a lower water seal (2.2.3), the side wall of the pipeline between the upper water seal (2.2.2) and the lower water seal (2.2.3) is provided with a 2.2.4), the vent pipe (2.2.4) is arranged in an arc pipe which is bent upwards, one end of the vent pipe (2.2.4) is in threaded connection with a cover cap, and when the cover cap is opened, the vent pipe (2.2.4) plays a role of ventilating; when the cap is closed, the tightness of the double water seal pipeline (2.2) can be maintained;
one end of the common drainage pipeline (2.3) is provided with a second lifting type drainage device (2.3.1), the other end of the common drainage pipeline (2.3) is communicated with a drainage main pipe (2.6), the second lifting type drainage device (2.3.1) is arranged on the bottom side wall in the upper water tank (2.1), and the common drainage pipeline (2.3) is provided with a drainage water seal (2.3.2);
one end of the annular vent pipeline (2.4) is connected with the side wall of the upper water tank (2.1), the other end of the annular vent pipeline (2.4) is communicated with the main drain pipe (2.6), a first valve (2.4.1) is arranged on the annular vent pipeline (2.4), an air suction pipe which is arranged in an arc shape is fixedly connected to the side wall of the annular vent pipeline (2.4), a second valve (2.4.2) is arranged at one end of the air suction pipe, and an air suction valve (2.4.3) is arranged at one end of the second valve (2.4.2);
one end of the induced siphon drainage pipeline (2.5) is connected with the main drainage pipeline (2.6), and a siphon water seal (2.5.1) is arranged on the induced siphon drainage pipeline (2.5);
the drainage main pipe (2.6) comprises a drainage transverse pipe and a drainage vertical pipe, the drainage vertical pipe is vertically and fixedly connected to one end of the drainage transverse pipe, the bottom end of the drainage vertical pipe is positioned above the lower water tank (1.1), and the top end of the drainage vertical pipe is provided with a vent (2.6.1) communicated with the outside air;
movable joints are arranged at the pipeline joints of the main drainage pipe (2.6), the double water seal pipeline (2.2), the common drainage pipeline (2.3), the annular vent pipeline (2.4) and the induced siphon drainage pipeline (2.5), so that the gradient of the main drainage pipe (2.6) can be adjusted;
the power supply system (3) comprises a water pump control cabinet and a power supply, wherein the water pump control cabinet is respectively connected with a water pump (1.2) and the power supply;
signal transmission and display system (4) include first pressure transmitter (4.1), second pressure transmitter (4.2), third pressure transmitter (4.3), fourth pressure transmitter (4.4) and signal processor, first pressure transmitter (4.1), second pressure transmitter (4.2), third pressure transmitter (4.3) and fourth pressure transmitter (4.4) all are connected with signal processor electricity, first pressure transmitter (4.1) is installed on the lateral wall of drainage standpipe, second pressure transmitter (4.2) is installed on the lateral wall of drainage violently pipe, third pressure transmitter (4.3) is installed on dual water seal pipeline (2.2), fourth pressure transmitter (4.4) is installed on ordinary drainage pipe (2.3), first pressure transmitter (4.1), second pressure transmitter (4.2), third pressure transmitter (4.3), And the fourth pressure transmitter (4.4) is respectively used for measuring the pressure in the vertical drainage pipe, the horizontal drainage pipe, the double water seal pipeline (2.2) and the common drainage pipeline (2.3), converting the pressure into an electric signal and then sending the pressure signal to the signal processor.
2. The observation and demonstration device for the water and air flowing states of the drainage pipeline system of the building as claimed in claim 1, wherein the upper water seal (2.2.2), the lower water seal (2.2.3), the siphon water seal (2.5.1) and the drainage water seal (2.3.1) are formed by connecting a plurality of 45-degree elbows up and down, and the lower positions of the upper water seal (2.2.2), the lower water seal (2.2.3), the siphon water seal (2.5.1) and the drainage water seal (2.3.1) are all provided with pipe caps connected by lines for draining water in the water seals.
3. The observation and demonstration device for the water and air flow state of the drainage pipeline system of the building as claimed in claim 2, wherein the water seal depth H of the upper water seal (2.2.2), the lower water seal (2.2.3), the siphon water seal (2.5.1) and the drainage water seal (2.3.1) is not less than 50 mm.
4. The observation and demonstration device for the flowing state of water and air in the drainage pipeline system of the building as claimed in claim 1, wherein the maximum flow rate of the water pump (1.2) is 2L/s, corresponding to 4m water column of the head.
5. The observation and demonstration device for the water and air flow states of the building drainage pipeline system according to claim 1, wherein the pipeline materials of the water supply pipeline (1.5), the double water seal pipeline (2.2), the common drainage pipeline (2.3), the annular vent pipeline (2.4), the induced siphon drainage pipeline (2.5) and the drainage main pipe (2.6) comprise any one, any several or the combination of other materials selected from UPVC, PP, glass, organic glass and metal pipes.
6. The apparatus as claimed in claim 1, wherein the signal processor is a laptop computer.
7. The demonstration device for observing the water and air flow state of a drainage pipeline system of a building as claimed in claim 1, wherein said power supply can be 220V or 380V.
8. The demonstration device for observing the flowing state of water and gas in a drainage pipeline system of a building as claimed in claim 1, wherein the first pull-up drainage device (2.2.1) is used for cutting off or opening the water flow from the upper water tank (2.1) to the double water seal pipeline (2.2); the second lifting type drainage device (2.3.1) is used for cutting off or opening water flow from the upper water tank (2.1) to the common drainage pipeline (2.3).
9. The observation and demonstration device for the flowing state of water and air in a drainage pipeline system of a building as claimed in claim 1, wherein the first valve (2.4.1), the second valve (2.4.2) and the third valve (1.3) are ball valves or gate valves.
10. The observation and demonstration device for the flowing state of water and gas in the drainage pipeline system of the building as claimed in claim 1, wherein the pressure measurement ranges of the first pressure transmitter (4.1), the second pressure transmitter (4.2), the third pressure transmitter (4.3) and the fourth pressure transmitter (4.4) are-500 Pa- +500 Pa.
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| CN202210882109.7A CN115083255A (en) | 2022-07-26 | 2022-07-26 | Demonstration device for observing water and air flow states of building drainage pipeline system |
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| CN202210882109.7A CN115083255A (en) | 2022-07-26 | 2022-07-26 | Demonstration device for observing water and air flow states of building drainage pipeline system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117153037A (en) * | 2023-03-06 | 2023-12-01 | 皖西学院 | Building drainage experiment system and method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117153037A (en) * | 2023-03-06 | 2023-12-01 | 皖西学院 | Building drainage experiment system and method |
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