CN107328028A - A kind of pump selection method - Google Patents
A kind of pump selection method Download PDFInfo
- Publication number
- CN107328028A CN107328028A CN201710647782.1A CN201710647782A CN107328028A CN 107328028 A CN107328028 A CN 107328028A CN 201710647782 A CN201710647782 A CN 201710647782A CN 107328028 A CN107328028 A CN 107328028A
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- China
- Prior art keywords
- pump
- water
- air
- conditioning system
- pump head
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Links
- 238000010187 selection method Methods 0.000 title claims abstract description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 103
- 238000004378 air conditioning Methods 0.000 claims abstract description 46
- 238000005259 measurement Methods 0.000 claims abstract description 45
- 238000013461 design Methods 0.000 claims description 12
- 238000006243 chemical reaction Methods 0.000 claims description 10
- 230000008676 import Effects 0.000 claims description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000005057 refrigeration Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000008236 heating water Substances 0.000 description 1
- 230000003020 moisturizing effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
- F04D15/0088—Testing machines
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a kind of pump selection method, including：Pump capacity is determined according to the handpiece Water Chilling Units cold for the air-conditioning system being connected with water pump；Pump head measurement apparatus is connected with handpiece Water Chilling Units；The pipeline of air-conditioning system is fully open；After air-conditioning system is full of water, pump head is measured by pump head measurement apparatus；The water pump according to needed for being determined the pump capacity and the pump head.Above-mentioned pump selection method, can survey out system circulation resistance of the air-conditioning system under metered flow, the lift provided with determining water pump to need.
Description
Technical field
The present invention relates to pump selection technical field, more particularly to a kind of pump selection method.
Background technology
For at present, water system either air-conditioner water system, heating water or feedwater, the fire water of actual motion
System all has the problem of outfit pump power is bigger than normal, the presence of these problems：Not only increased just initial stage in engineering construction
Invest (water pump, pipeline, valve；Distribution line, high-low voltage electric power distribution cabinet, even transformer, power capacity increasing tariff；Station takes up an area), and
And system debug difficulty is added after pipe-line system is installed, especially in the running after system comes into operation, by
Being worked in water pump under undercapacity causes its efficiency and power factor ratio full load much lower, is so on the one hand degrading power transmission line
The power factor value on road, at the same time increases the meaningless power consumption of user, and user is paying extra year in year out
The electricity charge.The presence of substantial amounts of this case causes entire society to pay huge environmental cost for this, for environment destruction and
The consumption of resource has jeopardized the sustainable development of human society.
The content of the invention
It is an object of the invention to provide a kind of pump selection method, this method can survey out air-conditioning system in metered flow
Under system circulation resistance, with determine water pump need provide lift.
To achieve the above object, the present invention provides a kind of pump selection method, including：
Pump capacity is determined according to the handpiece Water Chilling Units cold for the air-conditioning system being connected with water pump；
Pump head measurement apparatus is connected with handpiece Water Chilling Units；
The pipeline of air-conditioning system is fully open；
After air-conditioning system is full of water, pump head is measured by pump head measurement apparatus；
The water pump according to needed for being determined the pump capacity and the pump head.
The pump selection method provided relative to above-mentioned background technology, the present invention, pump capacity can be according to handpiece Water Chilling Units
Cold namely building total refrigeration duty and select；For the selection of pump head, after air-conditioning system is installed, raised using water pump
Journey measurement apparatus is connected with handpiece Water Chilling Units, and the pipeline of air-conditioning system is fully open, and system is full of after water by water-supply and pressure-stabling device,
Pump head is measured by pump head measurement apparatus, required pump head is determined, finally according to pump capacity and water pump
Water pump needed for lift is determined, completes type selecting.It is arranged such, it is to avoid the selection of pump head is based on theoretical meter in the prior art
Layout design after calculation, and then the phenomenon that pump head is far longer than actual demand is avoided, save social resources.
Preferably, it is described after air-conditioning system is full of water, the step of pump head is measured by pump head measurement apparatus
Specially：
After air-conditioning system is full of water, water pump is started by the frequency conversion tank being connected with measurement water pump；
The frequency conversion tank is adjusted, until ultrasonic flowmeter shows that the flow of air-conditioning system is design metered flow；
Obtain the inlet pressure and exit pressure levels that water pump is measured when the flow of air-conditioning system is design metered flow；
SR is worth to according to inlet pressure and outlet pressure, the SR is pump head.
Preferably, it is described to be specially the step of be worth to SR according to inlet pressure and outlet pressure：
The difference between the inlet pressure and the exit pressure levels is calculated, the SR is obtained.
Preferably, also include before the step that pump head measurement apparatus is connected with handpiece Water Chilling Units：
Measurement water pump is electrically connected with frequency conversion tank；
To show that the ultrasonic flowmeter of air-conditioning system flow is installed between handpiece Water Chilling Units and the measurement water pump
On water pipe.
Preferably, in addition to by inlet pressure gauge and delivery gauge the import of the measurement water pump is respectively arranged in going out
At mouthful.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the accompanying drawing used required in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
The embodiment of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can also basis
The accompanying drawing of offer obtains other accompanying drawings.
The flow chart for the pump selection method that Fig. 1 is provided by the embodiment of the present invention；
The structural representation for the pump head measurement apparatus that Fig. 2 is provided by the embodiment of the present invention；
Fig. 3 is linked into the schematic diagram of air-conditioning system for the pump head measurement apparatus in Fig. 2.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
In order that those skilled in the art more fully understand the present invention program, below in conjunction with the accompanying drawings and specific implementation
The present invention is described in further detail for mode.
It refer to Fig. 1, Fig. 2 and Fig. 3, the flow chart for the pump selection method that Fig. 1 is provided by the embodiment of the present invention；Fig. 2
The structural representation of the pump head measurement apparatus provided by the embodiment of the present invention；Fig. 3 is the pump head measurement dress in Fig. 2
Put the schematic diagram for being linked into air-conditioning system.
A kind of pump selection method that the present invention is provided, as described in Figure of description 1, mainly includes：
The handpiece Water Chilling Units cold for the air-conditioning system that S1, basis are connected with water pump determines pump capacity；
S2, pump head measurement apparatus is connected with handpiece Water Chilling Units；
It is S3, the pipeline of air-conditioning system is fully open；
S4, when air-conditioning system be full of water after, pump head is measured by pump head measurement apparatus；
S5, the water pump according to needed for being determined the pump capacity and the pump head.
In step sl, first can be according to the cold of air-conditioning system for the selection method for the water pump for accessing air-conditioning system
Water dispenser group cold (namely building total refrigeration duty) determines pump capacity；It is known that for the type selecting of water pump, two important parameters
It is pump capacity and pump head, pump capacity is selected by handpiece Water Chilling Units cold (building total refrigeration duty) for air-conditioning system
Will not be wrong, problem goes out in the selection of pump head, and the layout design after theoretical calculation is often bigger than normal, therefore solves problem
Key point is exactly the system circulation resistance for surveying out air-conditioning system under metered flow, here it is water pump needs the lift provided.
The pump power of actual motion is often bigger than normal, and the basic reason for causing to occur this serious problems is, since water pump
Since invention (1818, American has invented centrifugal pump) we be layout design after theoretical calculation from the foundation of water pump and
It is not the actual demand of the pipe-line system actually put into operation after installing.
And instant invention overcomes above-mentioned prior art prejudice, creative a set of energy Accurate Determining of developing goes out actual pipe
The technological means of road water system operational factor, is that pipe-line system is equipped with suitable water pump, is just faced as field of fluid
Key subjects be badly in need of be resolved.That is, water pump is selected by actual measurement, rather than water pump is selected by the layout design after theoretical calculation.
In step s 2, pump head measurement apparatus is connected with handpiece Water Chilling Units；Wherein, pump head measurement apparatus can be with
As shown in Figure of description 2, and pump head measurement apparatus accesses the schematic diagram of air-conditioning system as shown in Figure 3.
In step s3, it is the pipeline of air-conditioning system is fully open；After air-conditioning system is installed, and pressure test is closed
Lattice, (water route, circuit) accesses the device, and system is full of after water by air-conditioning system pipeline valve wide open, water-supply and pressure-stabling device, performs
Step S4.
In step s 4, pump head is measured by pump head measurement apparatus；
In step s 5, the water pump according to needed for being determined the pump capacity and the pump head.
As can be seen that the core of the present invention is a kind of " to utilize pump head measurement apparatus actual measurement air-conditioning using proposing
Water system circulation resistance in system " method, obtains pump head by means of pump head measurement apparatus, has abandoned prior art
In rely solely on the theoretical value of layout design and choose water pump, and avoid causing the phenomenon of the wasting of resources.
For step S4, it can specifically include：
After air-conditioning system is full of water, water pump is started by the frequency conversion tank being connected with measurement water pump；
The frequency conversion tank is adjusted, until ultrasonic flowmeter shows that the flow of air-conditioning system is design metered flow；
Obtain the inlet pressure and exit pressure levels that water pump is measured when the flow of air-conditioning system is design metered flow；
SR is worth to according to inlet pressure and outlet pressure, the SR is pump head.
That is, when air-conditioning system is installed, pressure test is qualified, (water route, circuit) accesses the device, system pipeline valve
System is full of after water by door standard-sized sheet, water-supply and pressure-stabling device, starts water pump by frequency conversion tank, is adjusted manually on Water supply special inverter
Speed, treats ultrasonic flowmeter, when display flow system flow is design metered flow, reads pump inlet and outlet pressure table numerical value, its difference
As SR, i.e., the pump head that actual pipe-line system needs.So far, measurement terminates.Filled by metered flow and the measurement
Put the pump head of display, so that it may it is determined that selected water pump, the water pump is exactly the water pump required for actual pipeline.
Before step S1, it can also include：
Measurement water pump is electrically connected with frequency conversion tank；
To show that the ultrasonic flowmeter of air-conditioning system flow is installed between handpiece Water Chilling Units and the measurement water pump
On water pipe.
In addition, in addition to by inlet pressure gauge and delivery gauge be respectively arranged in the import of the measurement water pump with
Exit.Herein：" measurement water pump " refers to realize to water pump used in the type selecting of water pump, " measurement water pump " not etc.
It is same as in " determining pump capacity according to the handpiece Water Chilling Units cold for the air-conditioning system being connected with water pump " in such as claim 1
" water pump ".
In Figure of description 2, actual water-carrying capacity of the ultrasonic flowmeter 1 to measure pipe-line system, water pump 2 and frequency converter
3 are connected, and water pump 2 is to provide pipe-line system current conveying power, and frequency converter 3 can be by manually setting power supply on its panel
Frequency carries out speed governing to water pump；Pressure gauge is used for measuring water pump import and export pressure；In Figure of description 3, multiple air conditioning terminals 10
Parallel connection, and handpiece Water Chilling Units 20 are connected with pump head measurement apparatus, and the both sides of pump head measurement apparatus connect water supply respectively
Pipe 30 and return pipe 40；High-order water supply tank 50 is used to carry out moisturizing to air-conditioning system.
The pump selection method that the present invention is provided, according to the characteristics of air-conditioning system, sets out pump head measurement dress first
Put, and pump head is surveyed out using pump head measurement apparatus, foundation, choosing are then used as according to pump head and pump capacity
Select the type of water pump.It is arranged such, overcomes the technology that pump head carries out selection according to theoretical values in the prior art inclined
See, it is to avoid pump head is far longer than the phenomenon of actual demand, has saved social resources.
Pump selection method provided by the present invention is described in detail above.Specific case pair used herein
The principle and embodiment of the present invention is set forth, and the explanation of above example is only intended to the method for helping to understand the present invention
And its core concept.It should be pointed out that for those skilled in the art, before the principle of the invention is not departed from
Put, some improvement and modification can also be carried out to the present invention, these are improved and modification also falls into the guarantor of the claims in the present invention
In the range of shield.
Claims (5)
1. a kind of pump selection method, it is characterised in that including：
Pump capacity is determined according to the handpiece Water Chilling Units cold for the air-conditioning system being connected with water pump；
Pump head measurement apparatus is connected with handpiece Water Chilling Units；
The pipeline of air-conditioning system is fully open；
After air-conditioning system is full of water, pump head is measured by pump head measurement apparatus；
The water pump according to needed for being determined the pump capacity and the pump head.
2. pump selection method according to claim 1, it is characterised in that described after air-conditioning system is full of water, passes through
The step of pump head measurement apparatus measures pump head be specially：
After air-conditioning system is full of water, water pump is started by the frequency conversion tank being connected with measurement water pump；
The frequency conversion tank is adjusted, until ultrasonic flowmeter shows that the flow of air-conditioning system is design metered flow；
Obtain the inlet pressure and exit pressure levels that water pump is measured when the flow of air-conditioning system is design metered flow；
SR is worth to according to inlet pressure and outlet pressure, the SR is pump head.
3. pump selection method according to claim 2, it is characterised in that described according to inlet pressure and outlet pressure
The step of being worth to SR be specially：
The difference between the inlet pressure and the exit pressure levels is calculated, the SR is obtained.
4. the pump selection method according to claims 1 to 3 any one, it is characterised in that described to survey pump head
Also include before the step that amount device is connected with handpiece Water Chilling Units：
Measurement water pump is electrically connected with frequency conversion tank；
To show the water pipe that the ultrasonic flowmeter of air-conditioning system flow is installed between handpiece Water Chilling Units and the measurement water pump
On.
5. pump selection method according to claim 4, it is characterised in that also including by inlet pressure gauge and outlet pressure
Table is respectively arranged in import and the exit of the measurement water pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710647782.1A CN107328028A (en) | 2017-08-01 | 2017-08-01 | A kind of pump selection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710647782.1A CN107328028A (en) | 2017-08-01 | 2017-08-01 | A kind of pump selection method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107328028A true CN107328028A (en) | 2017-11-07 |
Family
ID=60199100
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710647782.1A Pending CN107328028A (en) | 2017-08-01 | 2017-08-01 | A kind of pump selection method |
Country Status (1)
| Country | Link |
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| CN (1) | CN107328028A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023040693A1 (en) * | 2021-09-17 | 2023-03-23 | 上海美控智慧建筑有限公司 | Method and apparatus for configuration of air-conditioning machine room, and electronic device and readable storage medium |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101782260A (en) * | 2010-01-22 | 2010-07-21 | 华中科技大学 | Optimal control method and device for water system of air conditioning |
| CN204006901U (en) * | 2014-08-15 | 2014-12-10 | 大连爱特流体控制有限公司 | A kind of integral type refrigeration station system |
| CN105221385A (en) * | 2015-10-22 | 2016-01-06 | 广州市设计院 | Air-conditioning system different lift different flow Combined water pump structure and controlling method |
| CN106704163A (en) * | 2017-01-13 | 2017-05-24 | 湖南集森节能环保科技有限公司 | Water pump frequency conversion speed regulation control method, device and system |
-
2017
- 2017-08-01 CN CN201710647782.1A patent/CN107328028A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101782260A (en) * | 2010-01-22 | 2010-07-21 | 华中科技大学 | Optimal control method and device for water system of air conditioning |
| CN204006901U (en) * | 2014-08-15 | 2014-12-10 | 大连爱特流体控制有限公司 | A kind of integral type refrigeration station system |
| CN105221385A (en) * | 2015-10-22 | 2016-01-06 | 广州市设计院 | Air-conditioning system different lift different flow Combined water pump structure and controlling method |
| CN106704163A (en) * | 2017-01-13 | 2017-05-24 | 湖南集森节能环保科技有限公司 | Water pump frequency conversion speed regulation control method, device and system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023040693A1 (en) * | 2021-09-17 | 2023-03-23 | 上海美控智慧建筑有限公司 | Method and apparatus for configuration of air-conditioning machine room, and electronic device and readable storage medium |
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Application publication date: 20171107 |
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