CN204328991U - Circulating water pump system - Google Patents
Circulating water pump system Download PDFInfo
- Publication number
- CN204328991U CN204328991U CN201420637156.6U CN201420637156U CN204328991U CN 204328991 U CN204328991 U CN 204328991U CN 201420637156 U CN201420637156 U CN 201420637156U CN 204328991 U CN204328991 U CN 204328991U
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- Prior art keywords
- pump
- water
- boiler
- water pump
- circulating pump
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 79
- 230000008676 import Effects 0.000 claims description 16
- 230000007613 environmental effect Effects 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 description 11
- 238000009434 installation Methods 0.000 description 4
- 230000002706 hydrostatic effect Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000013011 mating Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 241000272525 Anas platyrhynchos Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012857 repacking Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
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- Domestic Hot-Water Supply Systems And Details Of Heating Systems (AREA)
Abstract
The utility model discloses a circulating water pump system, including circulating water pump and boiler the export of water pump is not installed the check valve to circulating water pump adopts the connected mode of oblique tee bend with being connected of house steward. The outlet of the water pump is provided with a gradually expanding pipe, the inlet of the boiler is not provided with a check valve, and the pipe diameter size of the inlet and the outlet of the boiler is larger than that of the inlet and the outlet valves. The utility model has the advantages of simple structure, energy saving and environmental protection.
Description
Technical field
The utility model relates to a kind of Circulating Pump System, especially a kind of Circulating Pump System through repacking.
Background technology
Water pump due to role in a variety of systems different and there is different individual callings.In heating system, the title of water pump has: steam boiler feed pump, hot-water boiler water circulating pump, heat supply network small pump, circulation pump of heat-supply network, relaying force (forcing) pump (relay pump), heat supply network multifunctional pump (multifunctional pump), mixed water force (forcing) pump, condensate pump etc.The mounting means of various water pump and mating valve, corollary equipment etc. also should be distinguished according to the difference of water pump role to some extent.But ignore this point in traditional customary way, as long as there is water pump, its outlet must pacify the practice of check-valves.Various types of check-valves all can produce resistance to the liquid of flowing in pipeline, all can consume electric energy.Just should not install in the place that there is no need to install check-valves.So both can save operation power charge, valve expense and installation fee can be saved again.Exit of pump whether install check-valves should according to water pump in systems in which role determine.
Summary of the invention
The purpose of this utility model is to provide that a kind of structure is simple, the New Cycle water pump system of energy-conserving and environment-protective.
The utility model adopts following technical scheme:
A kind of Circulating Pump System, comprises water circulating pump and boiler, and at the uneasy loaded check valve of described water delivery side of pump, and the connection of water circulating pump and house steward adopts the connected mode of skew T.
Preferably, water delivery side of pump is provided with increaser.
Preferably, at the uneasy loaded check valve of the import of described boiler.
Preferably, the import and export caliber size of described boiler is greater than the size of terminal valve.
The beneficial effects of the utility model are:
Owing to have employed technique scheme, the utility model has the advantage of structure simplification, energy-conserving and environment-protective.
Accompanying drawing explanation
Fig. 1 is the structure chart of the utility model Circulating Pump System.
Wherein: 1, boiler, 2, skew T, 3, valve, 4, increaser, 5, water circulating pump, 6, valve, 7, dirt separator, 8, water tank, 9, heat user.
Detailed description of the invention
According to embodiment, the utility model is described in further detail below.
The utility model discloses a kind of Circulating Pump System, comprise water circulating pump 5 and boiler 1, at the uneasy loaded check valve of described water delivery side of pump, and water circulating pump 5 adopts the connected mode of skew T 2 with the connection of house steward.Water delivery side of pump is provided with increaser 4, and at the uneasy loaded check valve of the import of described boiler, the import and export caliber size of described boiler is greater than the size of terminal valve.The utility model has the advantage of structure simplification, energy-conserving and environment-protective.Concrete scheme of the present utility model is as follows:
(1) water circulating pump outlet non-return valve is cancelled.
Water pump due to role in a variety of systems different and there is different individual callings.In heating system, the title of water pump has: steam boiler feed pump, hot-water boiler water circulating pump, heat supply network small pump, circulation pump of heat-supply network, relaying force (forcing) pump (relay pump), heat supply network multifunctional pump (multifunctional pump), mixed water force (forcing) pump, condensate pump etc.The mounting means of various water pump and mating valve, corollary equipment etc. also should be distinguished according to the difference of water pump role to some extent.But ignore this point in traditional customary way, as long as there is water pump, its outlet must pacify the practice of check-valves.Various types of check-valves all can produce resistance to the liquid of flowing in pipeline, all can consume electric energy.Just should not install in the place that there is no need to install check-valves.So both can save operation power charge, valve expense and installation fee can be saved again.Exit of pump whether install check-valves should according to water pump in systems in which role determine.
The water circulating pump of hot-water boiler and pumps for hot water supply net (comprising the secondary net circulating pump in the circulating pump of steam power plant's Gateway Station in Heating Network and thermal substation) are all make the water water pump that (in the instant heating network of rivers) circulates in heating system.Each heating system is made up of one or more completely independently closed circulation system, and each closed circulation system provides circulation power by a set of water circulating pump, water is made to overcome various drag losses and " end to end " circulate in the entire system.When the water circulating pump that breaks power supply (or having a power failure suddenly), water circulating pump will shut down.The water flowed in heat supply network also can stop at short notice automatically because losing circulation power.At this moment the water in heat supply network can be made to make reverse flow without any power.Therefore the exit of water circulating pump there is no need peace check-valves and " reverses to prevent water pump ".Certainly, at most of conditions the installation site of boiler all higher than the installation site of boiler cycle pump; The building height of heat user heating system, all higher than the thermal substation installing water circulating pump, has a difference in height between they and water circulating pump.But because heating system is a closed system, from hydrostatics, the hydrostatic pressure that produced by this difference in height can act on water pump two side by the outlet conduit of water circulating pump and inlet duct simultaneously, its static pressure is equal, direction is to instead.Therefore water pump can not reverse in the event of a power failure.The check-valves that usual practice is installed in water circulating pump outlet only can operationally increase useless power consumption, should cancel.(see figure 1).P when water circulating pump is out of service
1=P
2=system hydrostatic pressure.
If water circulating pump has stand-by pump, the practice should closing outlet valve when converting running water pump should do not replaced yet by the mode that pump discharge installs check-valves.Do like this and on the one hand violate behaviour and do code, also may make current short-circuit cycle between pump due to check-valves imprecision simultaneously.
For boiler feed pump, heat supply network small pump, relay pump, heat supply network multifunctional pump, mixed water force (forcing) pump, condensate pump etc., due to after these pump shutdowns, the pressure of water pump water outlet pipeline, higher than the pressure of pump entrance pipe, must install check-valves at pump outlet.But the check-valves installed must select those resistances little, open and close flexible, tight, the ten million unavailable that butterfly shaped check valve with wire spring structure, this check valve structure is very unreasonable, and drag losses is large, and sometimes also can open incomplete because getting rusty.
The power-saving measures cancelling water circulating pump outlet non-return valve has obtained the checking of theory and practice two aspect.As: the Mudanjiang City iron south central heating system of design under Finland heat supply expert instructs and the Gateway Station in Heating Network of Qinhuangdao central heating system and heat exchange station system water pump, all without check-valves, safe operation for many years.Many Thermal Corp, also all in order to power saving with reduce the fault rate of valve, alleviate maintenance load and eliminate the check-valves of water circulating pump outlet, and also safe operation for many years.
(2) expand water circulating pump and import and export pipe arrangement caliber, be connected employing skew T with house steward.
Many water pumps make the nominal diameter of the outlet(discharge) flange of the pump housing due to structural reason, be less than the diameter of entrance.Entrance as pump is DN300, then outlet is DN250; Entrance is DN600, exports as DN400 etc.In water pump is installed, great majority do not do the checking computations of optimal specific frictional head loss to the size of pipe arrangement, but press water pump import and export flange size pipe arrangement.Result presses the flow checking computations of pump working, then import pipe arrangement is often slightly larger than optimal specific frictional head loss, and the pipe arrangement of outlet greatly exceed optimal specific frictional head loss.Cause water pump pipe arrangement drag losses very large, long-play wastes many electric energy.
The rational practice is, should join an increaser, and then join outlet valve and outlet conduit at water delivery side of pump, makes water pump import and export pipeline equal diameters.Simultaneously water pump imports and exports pipeline and system manifold junction, should take the piping method of skew T, and need not T-shaped straight tee (ST.TEE), to reduce local resistance loss further.
(3) increase boiler and import and export caliber, cancel inlet tube check-valves.
Most of boiler room is all arrange by the model size of boiler terminal valve to import and export caliber when heat distribution pipeline is installed.And the terminal valve often No. all less than normal of boiler factory's configuration.Namely caliber imported and exported by the boiler being not more than the Specification Design of 120Pa/m according to the optimal specific frictional head loss of heat supply pipeline in the nominal cycle water yield of boiler and boiler room, is generally all greater than the inside nominal diameter of boiler body terminal valve.If do not establish reducer pipe to expand import and export caliber at boiler import and export during Pipe installing, boiler will be made to import and export resistance excessive, add electrical power consumption of water pump.Especially boiler inlet installs a check-valves like water off a duck's back again, further increases the drag losses of boiler room internal pipeline.
The check-valves that hot-water boiler inlet non-return valve exports with water circulating pump is the same, completely can cancel and economize on electricity.
Obviously, above-described embodiment of the present utility model is only for the utility model example is clearly described, and is not the restriction to embodiment of the present utility model.For those of ordinary skill in the field, other multi-form change and variations can also be made on the basis of the above description.Here cannot give exhaustive to all embodiments.Every belong to the technical solution of the utility model the apparent change of amplifying out or variation be still in the row of protection domain of the present utility model.
Claims (4)
1. a Circulating Pump System, comprises water circulating pump and boiler, it is characterized in that, at the uneasy loaded check valve of described water delivery side of pump, and the connection of water circulating pump and house steward adopts the connected mode of skew T.
2. Circulating Pump System according to claim 1, is characterized in that, water delivery side of pump is provided with increaser.
3. Circulating Pump System according to claim 1 and 2, is characterized in that, at the uneasy loaded check valve of the import of described boiler.
4. Circulating Pump System according to claim 1 and 2, is characterized in that, the import and export caliber size of described boiler is greater than the size of terminal valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420637156.6U CN204328991U (en) | 2014-10-30 | 2014-10-30 | Circulating water pump system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420637156.6U CN204328991U (en) | 2014-10-30 | 2014-10-30 | Circulating water pump system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204328991U true CN204328991U (en) | 2015-05-13 |
Family
ID=53165345
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420637156.6U Expired - Fee Related CN204328991U (en) | 2014-10-30 | 2014-10-30 | Circulating water pump system |
Country Status (1)
| Country | Link |
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| CN (1) | CN204328991U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104390208A (en) * | 2014-10-30 | 2015-03-04 | 北京中建建筑科学研究院有限公司 | Circulating water pump system |
-
2014
- 2014-10-30 CN CN201420637156.6U patent/CN204328991U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104390208A (en) * | 2014-10-30 | 2015-03-04 | 北京中建建筑科学研究院有限公司 | Circulating water pump system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150513 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |