CN201000694Y - Comprehensive test platform for liquid supply ductwork teaching - Google Patents
Comprehensive test platform for liquid supply ductwork teaching Download PDFInfo
- Publication number
- CN201000694Y CN201000694Y CNU2007200335053U CN200720033505U CN201000694Y CN 201000694 Y CN201000694 Y CN 201000694Y CN U2007200335053 U CNU2007200335053 U CN U2007200335053U CN 200720033505 U CN200720033505 U CN 200720033505U CN 201000694 Y CN201000694 Y CN 201000694Y
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- pipeline
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Abstract
The utility model discloses a teaching comprehensive test bench with liquid transmission and distribution pipe network, which comprises a circulation pipe line which is composed of multi-branch lines, a lower water box which is connected with the circulation pipe line as a whole, an overhead tank and a water pump. The coupling end of the circulation pipe line and the lower water box is provided with a water pump group, the water inlet pipes of the water pump group are all provided with a pressure meter, the water outlet pipes are all provided with a pressure meter and a flow meter of the water pump, each branch line of the circulation pipe line is provided with branch line flow meter, and each inlet and outlet of the branch line flow meter is provided with a monograph. The utility model has a highly integrity by combining the multifold monomial experiment together, the use ratio of the equipment is high, the cost is low and the floor space requirement is small; the flexibility is good, the valve on the pipeline can be open or close to developed different forms of the pipeline according the requirement of the experimentation to achieve different experimentation. The using ability of the basic theories and the operating ability of the students are trained on the basis of helping student to understand and master the learned theories.
Description
Technical field
The utility model relates to a kind of teaching test equipment, especially fluid transmission and distribution network teaching multi-function test stand.
Background technology
In heat supply, the teaching of air conditioner cold and hot water circulation pipe network, regular meeting relates to open type and closed system, reversed return type and direct return system, the series connection of water pump and parallel connection, some uninteresting notions such as elevated tank level pressure and water pump pressurization methods if adopt suitable experimental provision to match in the teaching, allow the student do it yourself to operate and observe, strengthen perceptual knowledge, the student just can be readily appreciated that and grasp their difference and contact; And by experiment, the student can understand the variation of pressure diagram in the pipeline intuitively, the variation of hydraulic regime, and hydraulic misadjustment, hydraulic stability, and the working conditions change of water pump are deepened the understanding to pipe network and water pump characteristic.
At present, in heat supply, the teaching of air conditioner cold and hot water circulation pipe network, often the testing equipment that uses has water pump comprehensive experiment table and heat supply network waterpower working condition tests platform, because these test stand performances are not too complete, comprehensive relatively poor with dirigibility, be not easy to the student and do it yourself to be combined into various pipeline forms, test comparison.
The utility model content
The utility model has overcome deficiency of the prior art, and a kind of simple in structure, comprehensive and strong, the multi-functional fluid transmission and distribution network teaching of dirigibility multi-function test stand is provided.
In order to solve the problem of above-mentioned existence, compbined test of the present utility model comprises the circulation line of being made up of a plurality of branch roads, the low flush tank, elevated tank and the water pump group that are connected as a single entity with circulation line, the pump water inlet road of described circulation line and the setting of low flush tank link is provided with tensimeter, outlet pipeline is provided with tensimeter and pump capacity meter, the branch road of circulation line is provided with the branch road flowmeter, is connected with manograph on the import and export pipeline of branch road flowmeter; Be provided with between the water outlet pipeline section of the backwater pipeline section of circulation line and pump water inlet section, water pump group and be communicated with pipeline section; The both sides of branch road are provided with the backwater pipeline section that links to each other with the backwater pipeline section.
Be provided with the dividing plate that breaks it into two in the described low flush tank, the water tank that is divided into two separate space by dividing plate is provided with communicating pipe, is provided with Shuttoff Valve and Draw off valve communicating pipe.
This fluid transmission and distribution network teaching multi-function test stand is the combined test apparatus that uses in a kind of hot water or cold water's circulation pipe network teaching, it is organically combined multiple mini-test, have very strong comprehensive, the plant factor height, realized the multiple function of a kind of device, avoided equipment repeat purchase, greatly reduce cost, also reduced floor area; Dirigibility is strong, and the student can design pipeline voluntarily according to testing requirements, opens or closes some valves on the pipeline, forms multi-form pipeline, tests, and satisfies the requirement of designability test, and training of students is used the ability and the manipulative ability of basic theories.
Description of drawings
Accompanying drawing is the utility model multi-function test stand structural representation.
Among the figure: X1-low flush tank, X2-elevated tank, B1-water pump, the B2-water pump, FB1～FB4-water pump suction pipe and rising pipe valve, N1～N5-branch road return pipe valve, O1～O5-branch road feed pipe valve, return pipe valve between M1～M4-branch road, feed pipe valve between P1～P4-branch road, F1～F14-pipeline segmentation valve, L1～L5-branch road flowmeter, L6-flowmeter, L7～flowmeter, R～rubber hose, C1-plank, the Y-piezometric tube, K～scale, 1～15-water pipe section.
Embodiment
Below in conjunction with accompanying drawing an embodiment of the present utility model is further described:
Shown in the accompanying drawing, fluid transmission and distribution network teaching multi-function test stand mainly contains: the water pump group, low flush tank X1, elevated tank X2 and five circulation lines that branch road is formed, the water pump group is located at circulation line and low flush tank X1 link, be respectively equipped with tensimeter on the inlet pipeline of water pump group, be respectively equipped with tensimeter and pump capacity meter L6 and L7 on the outlet pipeline, on five branch roads of circulation line flowmeter L1 is installed respectively, L2, L3, L4 and L5, be connected with manograph on the import and export pipeline of five flowmeters, manograph is made of with the piezometric tube Y that is located at rule K both sides the rule K that is located on the plank C1, the piezometric tube Y of both sides is respectively backwater piezometric tube and water supply piezometric tube, being connected with side pressure pipe Y on the plank C1 with rubber hose R respectively for the backwater porch of five branch roads.The water pump group is made up of B1 and B2, the suction pipeline section 1 of water pump B1 and B2 is connected low flush tank X1 respectively with 2, the exit of water pump B1 and B2 is connected water outlet pipeline section 3 and 4, water outlet pipeline section 3 and 4 converges the water outlet pipeline section 5 for the water pump group, and link to each other with the branch road of five parallel connections, the backwater pipeline section of five branch roads converges the back and is connected with 6 ' with the backwater pipeline section 6 of both sides, backwater pipeline section 6 is connected with backwater pipeline section 7 with 6 ' again, 7 sections of backwater pipeline sections are connected with the water inlet of elevated tank X2 and the suction pipeline section 1 of water pump B1 respectively with 9 through backwater pipeline section 8, and water outlet pipeline section 15 is passed through in the water outlet of elevated tank X2 and flexible pipe 10 enters low flush tank X1.The suction pipeline section 1 of water pump B1, B2 and 2 is linked together by water pipe section 11, the water outlet pipeline section 3 of water pump and 4 is linked together by water pipe section 12, water pipe section 11 and water pipe section 12 are linked together by water pipe section 13 again, and the water outlet pipeline section 5 of water pump group is connected with backwater pipeline section 7 through water pipe section 14.Suction pipeline section 1,2 and the water outlet pipeline section 3,4 of water pump B1, B2 are separately installed with valve FB1, FB2, FB3 and FB4; Be separately installed with flowmeter L6 and L7 on the water outlet pipeline section 3,4 of water pump B1, B2.Be separately installed with valve N1, N2, N3, N4 and N5 on the backwater pipeline section of five branch roads and the water supply pipeline section, O1, O2, O3, O4 and O5; Mounted valve P1, P2, P3 and P4 respectively on the water supply pipeline section between mounted valve M1, M2, M3 and the M4 respectively on the backwater pipeline section between five branch roads, five branch roads; Water main 5, backwater pipeline section 6 and 6 ' are separately installed with valve F1, F2 and F3, with mounted valve F4 on the water pipe section 14 that the water outlet pipeline section 5 of water pump group links to each other.Pipeline section 11 two ends mounted valve F5 and F6, pipeline section 12 two ends mounted valve F7 and F8, mounted valve F9 on the pipeline section 13, mounted valve F10 on the pipeline section 9, mounted valve F11 on the elevated tank water outlet pipeline section 15.In low flush tank, a baffle plate is set, water tank is divided into independently space of two of I and worker I, and connect, Shuttoff Valve 12 and Draw off valve 13 are installed on the water pipe by water pipe perpendicular to the pump sump direction.
The principle of work and the course of work: according to different testing requirementss, open or close the valve on the pipeline, form multi-form pipeline (valve F13 only opens, and closes when doing experiment) when low flush tank needs emptying, for example:
If 1 valve-off FB1, F5, F7, FB4, F4, F3, F11, all the other valves are all opened, and open water pump B1, by changing the aperture of valve F1 and F2, then can obtain five working points that parallel branch is different, and then draw the family curve of pipe network.
If 2 valve-off FB1, F5, F7, FB4, F4, F3, F11, all the other valves are all opened, open water pump B1, change the aperture of a certain valve between five branch roads or change the aperture of valve on a certain branch road, the hydraulic misadjustment situation that just can compare each branch road, and then the factor of analyzing influence system hydraulic stability.
If 3 valve-off FB1, F5, F7, FB4, F4, F3, F11, all the other valves are all opened, and open water pump B1, when water pump operation, if open valve F7, discharge water in pipe network, the ruuning situation of system in the time of just can observing the pipe network turned letter.
If 4 valve-off FB4, F7, F5, F10, F1, F2 open valve F4, open water pump B1, when water pump operation,, then can obtain the different operating point of water pump by changing the aperture of valve FB3, and then draw the family curve of water pump, and with the water pump sample in institute give to such an extent that curve is compared.
If 5 valve-off F1, F2, F9, F10, F4, F3, F12, all the other valves are all opened, and open water pump B1 and B2, then can do the parallel connection test of water pump.
If 6 valve-off F1, F2, F6, F7, F10, FB1, FB4, all the other valves are all opened, and open water pump B1 and B2, then can do the tandem test of water pump.
If 7 valve-off FB4, F7, F5, F10, F4, F3, F12, close minor valve FB1, open valve F4, and make flexible pipe 10 interior water flow into the II space of low flush tank, tensimeter on the water pump B1 suction pipeline section is changed into vacuum meter, open water pump B1, when water pump operation, then can do the cavitation experiment of water pump.
If valve-off F3 on 8 water return pipelines opens valve F2, then form different formula pipeline; If valve-off F2 on the water return pipeline opens valve F3, then form the reversed return type pipeline.Like this, just can compare the work situation of change of five branch roads in different formula and reversed return type pipeline.
If 9 valve-off FB4, F7, F5, F10, F4, F3, all the other valves are all opened, and open water pump B1, then form open-cycle system; If valve-off FB1, F11 open valve F9, all the other valves are constant, open water pump B1, then form closed circulation system.Like this, just can compare the work situation of change of water pump in open-cycle system and closed circulation system.
If 10 valve-off FB1, F5, F7, FB4, F4, F3, F11, all the other valves are all opened, and open water pump B1, then form the mode of elevated tank level pressure; If valve-off F11, F6 open F5, all the other valves are constant, open water pump B1 and B2, then form the mode of the continuous water-supply and pressure-stabling of water pump; Like this, just can relatively utilize the difference of elevated tank level pressure and water pump level pressure.
11, in the above in the mode of the continuous water-supply and pressure-stabling of water pump,, like this, just can compare water pump and the working condition of five branch roads under different level pressure pressure if the aperture of control valve F7 and F5 just forms the pressurization methods that pressurization point is located at the by-pass pipe place.
Claims (2)
1. fluid transmission and distribution network teaching multi-function test stand, it comprises the circulation line of being made up of a plurality of branch roads, the low flush tank (X1), elevated tank (X2) and the water pump group that are connected as a single entity with circulation line, it is characterized in that: the pump water inlet road of described circulation line and low flush tank (X1) link setting is provided with tensimeter, outlet pipeline is provided with tensimeter and pump capacity meter, the branch road of circulation line is provided with the branch road flowmeter, is connected with manograph on the import and export pipeline of branch road flowmeter; Be provided with between the backwater pipeline section (7) of circulation line and the water outlet pipeline section (5) of pump water inlet section (1), water pump group and be communicated with pipeline section (9,14); The both sides of branch road are provided with the backwater pipeline section (6,6 ') that links to each other with backwater pipeline section (7).
2. fluid transmission and distribution network teaching multi-function test stand according to claim 1, it is characterized in that: be provided with the dividing plate that breaks it into two in the described low flush tank (X1), the water tank that is divided into two separate space by dividing plate is provided with communicating pipe, is provided with Shuttoff Valve (12) and Draw off valve (13) communicating pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200335053U CN201000694Y (en) | 2007-01-06 | 2007-01-06 | Comprehensive test platform for liquid supply ductwork teaching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200335053U CN201000694Y (en) | 2007-01-06 | 2007-01-06 | Comprehensive test platform for liquid supply ductwork teaching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201000694Y true CN201000694Y (en) | 2008-01-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200335053U Expired - Fee Related CN201000694Y (en) | 2007-01-06 | 2007-01-06 | Comprehensive test platform for liquid supply ductwork teaching |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201000694Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105096683A (en) * | 2015-08-06 | 2015-11-25 | 天津市职业大学 | Air-conditioner hydraulic pipe network transmission and distribution and control practical training device |
| CN110836755A (en) * | 2019-11-30 | 2020-02-25 | 宁波东泰水务科技有限公司 | Water distribution pipe network leakage test equipment |
-
2007
- 2007-01-06 CN CNU2007200335053U patent/CN201000694Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105096683A (en) * | 2015-08-06 | 2015-11-25 | 天津市职业大学 | Air-conditioner hydraulic pipe network transmission and distribution and control practical training device |
| CN110836755A (en) * | 2019-11-30 | 2020-02-25 | 宁波东泰水务科技有限公司 | Water distribution pipe network leakage test equipment |
| CN110836755B (en) * | 2019-11-30 | 2021-10-22 | 宁波东泰水务科技有限公司 | Water distribution pipe network leakage test equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080102 |