CN101231795A

CN101231795A - Apparatus for researching siphon phenomenon

Info

Publication number: CN101231795A
Application number: CNA2007100367646A
Authority: CN
Inventors: 黄曾新; 于力; 王亚洁; 王亚伦; 冯泽远; 张文灏
Original assignee: Xiangming High School Shanghai
Current assignee: Xiangming High School Shanghai
Priority date: 2007-01-24
Filing date: 2007-01-24
Publication date: 2008-07-30

Abstract

The invention belongs to the field of experimental device and relates in particular to a device for studying siphonage. The invention consists of an outer vat (1), an inner keg (2), a water pump (3), a U-shaped water inlet pipe (4), a B-end bar (5), a B-end joint (6), an inner siphon (7), an outer siphon (8), a siphon joint (9), an A-end bar (10), an A-end joint (11), a water pressure gauge (12), a bracket (13), and a water outlet valve (14). The invention is simple in structure, easy to operate, and able to demonstrate the siphonage phenomena with simple experimental devices. Moreover, the invention is very practical and able to prove various conditions for the siphonage to occur.

Description

A kind of device of researching siphon phenomenon

Technical field

The invention belongs to the experimental provision field, be specifically related to a kind of device of researching siphon phenomenon.

Background technology

Siphonage is a common phenomenon in the physics, and be used for industrial and agricultural production and lived, yet people are to the existence condition and the factor of siphonage and be unfamiliar with, and school also lacks certain experiment equipment to the teaching of siphonage, particularly the poverty-stricken area is all the more so, quality of instruction is had very big influence, if can design a kind of simple in structurely, Zhuan Ye experimental provision just can address these problems again.

Summary of the invention

The objective of the invention is to design a kind of device of researching siphon phenomenon.

The invention provides a kind of device of researching siphon phenomenon, it is made up of outer drum, interior keg, water pump, U type water inlet pipe, B end rod, B end connector, interior U trap, outer U trap, U trap joint, A end rod, A end connector, water pressure gauge, support and flowing water Valve.

The device of a kind of researching siphon phenomenon provided by the invention is outside in the drum, be placed with interior keg by support, the bottom of a side of drum is equipped with a water pump outside, be connected with U type water inlet pipe on the water pump, the water inlet of U type water inlet pipe inserts in the interior keg, in interior keg, be placed with interior U trap, interior U trap one end is connected with the U trap joint, the other end is in interior keg and the B end connector is installed, the B end connector is connected with a B end rod, the U trap joint also is connected an outer siphonal end, the outer siphonal other end is placed in the outer drum, and in the U trap flowing water Valve is installed outside, and the A end connector also is installed in addition, the A end connector is connected with an A end rod, and water pressure gauge also is installed on the U trap outside.

When the present invention uses:

(1) switch pump of fetching boiling water when interior keg liquid level C surpasses U trap joint D place, and is full of water and there is no bubble in interior U trap and outer U trap, liquid drum outside the B end flows into is arranged, produce siphonage, but liquid is mobile always, will stop when liquid level C is lower than A;

(2) mobile A end rod and B end rod, U trap and outer siphon-shaped change in making, and the result does not influence siphonage and forms, and this just can prove that siphonage and pipe shape are irrelevant;

(3) change interior U trap and outer siphonal length, the result does not influence siphonage and forms, and this just can prove that siphonage and duct length are irrelevant;

(4) mobile A end rod changes the height of A end, closes outlet valve, the water pressure energy that can see the A end show it with liquid level C between difference in height, open outlet valve, the flow velocity that can find water is held with A and is directly proportional with the difference in height of liquid level C;

(5) mobile B end rod, and the height of B end is changed, can find that siphonage and U trap flow velocity are irrelevant, after closing flowing water Valve, mobile B end height can find that siphonage and water pressure gauge show pressure independent, and the liquid level height was relevant when its height only stopped with siphon;

(6) change interior U trap and outer siphonal thickness, make its internal diameter from changing between Φ 5～Φ 25, the result can both make siphonage take place, and this just can prove that siphonage and U trap thickness have nothing to do;

(7) change interior U trap and outer siphonal material, with iron pipe, polyvinyl chloride pipe, organic pipe, the result all can make siphonage take place, and this just can prove that siphonage and U trap material have nothing to do;

(8) with injecting gas in internal U trap of pin cap and the outer U trap, the result can make siphonage stop;

(9) make interior U trap and the porose gas leakage of outer U trap with pin, the result can make siphonage stop.

Result of the present invention is simple, and is easy to operate, just can demonstrate out the various phenomenons of siphonage by simple experimental apparatus, and can prove the various conditions that siphonage produces, and has good practicability.

Below, describe the details and the working condition of this device in conjunction with the accompanying drawings and embodiments in detail.

Description of drawings

The device of a kind of researching siphon phenomenon of Fig. 1

Keg, 3-water pump, 4-U type water inlet pipe, 5-B end rod, 6-B end connector, the interior U trap of 7-, the outer U trap of 8-, 9-U trap joint, 10-A end rod, 11-A end connector, 12-water pressure gauge, 13-support, 14-flowing water Valve in the outer drum of 1-, the 2-

Embodiment

As shown in Figure 1, the invention provides a kind of device of researching siphon phenomenon, it is by outer drum 1, interior keg 2, water pump 3, U type water inlet pipe 4, B end rod 5, B end connector 6, interior U trap 7, outer U trap 8, U trap joint 9, A end rod 10, A end connector 11, water pressure gauge 12, support 13 and flowing water Valve 14 are formed, be outside in the drum 1, be placed with interior keg 2 by support 13, the bottom of a side of drum 1 is equipped with a water pump 3 outside, be connected with U type water inlet pipe 4 on the water pump 3, the water inlet of U type water inlet pipe 4 inserts in the interior keg 2, U trap 7 in interior keg 2, being placed with, interior U trap 7 one ends are connected with U trap joint 9, the other end is in interior keg 2 and B end connector 6 is installed, B end connector 6 is connected with a B end rod 5, U trap joint 9 also is connected an end of outer U trap 8, the other end of outer U trap 8 is placed in the outer drum 1, and in the U trap 8 flowing water Valve 14 is installed outside, A end connector 11 also is installed in addition, A end connector 11 is connected with an A end rod 10, on the U trap 8 water pressure gauge 12 is installed also outside.

When the present invention uses:

(1) opens water pump 3 switches, when interior keg 2 liquid level C surpass U trap joint 9D place, and in interior U trap 7 and outer U trap 8, be full of water and there is no bubble, liquid drum 1 outside the B end flows into is arranged, produce siphonage, but liquid is mobile always, will stop when liquid level C is lower than A;

(2) mobile A end rod 10 and B end rod 5, U trap 7 and outer U trap 8 change of shape in making, result do not influence siphonage and form, and this just can prove that siphonage and pipe shape are irrelevant;

(3) length of U trap 7 and outer U trap 8 in the change, the result does not influence siphonage and forms, and this just can prove that siphonage and duct length are irrelevant;

(4) mobile A end rod 10 changes the height of A end, closes flowing water Valve 14, the water pressure energy that can see the A end show it with liquid level C between difference in height, open flowing water Valve 14, the flow velocity that can find water is held with A and is directly proportional with the difference in height of liquid level C;

(5) mobile B end rod 5, and the height of B end is changed, can find that siphonage and U trap flow velocity are irrelevant, after closing flowing water Valve 14, mobile B end height can find that siphonage and water pressure gauge 12 show pressure independent, and the liquid level height was relevant when its height only stopped with siphon;

(6) thickness of U trap 7 and outer U trap 8 in the replacing makes its internal diameter from changing between Φ 5～Φ 25, and the result can both make siphonage take place, and this just can prove that siphonage and U trap thickness have nothing to do;

(7) material of U trap 7 and outer U trap 8 in the replacing, with iron pipe, polyvinyl chloride pipe, organic pipe, the result all can make siphonage take place, and this just can prove that siphonage and U trap material have nothing to do;

(8) with injecting gas in internal U trap 7 of pin cap and the outer U trap 8, the result can make siphonage stop;

(9) make interior U trap 7 and outer U trap 8 porose gas leakage with pin, the result can make siphonage stop.

Claims

1. the device of a researching siphon phenomenon, it is characterized in that it is by outer drum (1), interior keg (2), water pump (3), U type water inlet pipe (4), B end rod (5), B end connector (6), interior U trap (7), outer U trap (8), U trap joint (9), A end rod (10), A end connector (11), water pressure gauge (12), support (13) and flowing water Valve (14) are formed, be outside in the drum (1), be placed with interior keg (2) by support (13), the bottom of a side of drum (1) is equipped with a water pump (3) outside, be connected with U type water inlet pipe (4) on the water pump (3), the water inlet of U type water inlet pipe (4) inserts in the interior keg (2), in interior keg (2), be placed with interior U trap (7), interior U trap (7) one ends are connected with U trap joint (9), the other end is in interior keg (2) and B end connector (6) is installed, B end connector (6) is connected with a B end rod (5), U trap joint (9) also is connected an end of outer U trap (8), the other end of outer U trap (8) is placed in the outer drum (1), and in the U trap (8) flowing water Valve (14) is installed outside, A end connector (11) also is installed in addition, A end connector (11) is connected with an A end rod (10), on the U trap (8) water pressure gauge (12) is installed also outside.