CN205037290U - Reduce boiler feed water device of oxygen -eliminating device mounting height - Google Patents
Reduce boiler feed water device of oxygen -eliminating device mounting height Download PDFInfo
- Publication number
- CN205037290U CN205037290U CN201520801700.0U CN201520801700U CN205037290U CN 205037290 U CN205037290 U CN 205037290U CN 201520801700 U CN201520801700 U CN 201520801700U CN 205037290 U CN205037290 U CN 205037290U
- Authority
- CN
- China
- Prior art keywords
- boiler feed
- oxygen
- stop valve
- feed pump
- venturi
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Jet Pumps And Other Pumps (AREA)
Abstract
The utility model relates to a reduce boiler feed water device of oxygen -eliminating device mounting height, including removing oxygen ware, boiler feed pump, venturi, stop valve, boiler feed pump's delivery outlet is connected with venturi's entry cylindrical section, the exit linkage of pressing the pipe and removing the oxygen ware is got to the burden of venturi's drum choke section, and venturi's circular cone diffuser and stop valve are connected, and a stop valve delivery outlet branch road meets boiler feed water input tube, another branch road and boiler feed pump input port connection. The utility model discloses an advantage: the utility model discloses only need pump the mouth, increase by a bypass, install a venturi and a stop valve, can adjust the static pressure of boiler feed pump import through the stop valve aperture to make the mounting height that reduces the oxygen -eliminating device, avoid the boiler feed pump cavitation erosion to damage.
Description
Technical field
The utility model relates to a kind of boiler feedwater, especially relates to a kind of boiler water-feeding device reducing oxygen-eliminating device setting height(from bottom).
Background technology
Atmosphere-type thermodynamic oxygen remover is all widely used in chemical industry and boiler industry, and its Main Function the oxygen content of boiler feedwater to be controlled in the scope of specification permission.The principle of atmosphere-type thermodynamic oxygen remover is that boiler feedwater is heated to saturation state in oxygen-eliminating device, is thoroughly separated by the gas be dissolved in water.Atmosphere-type thermodynamic oxygen remover needs boiler feedwater to be heated to saturation temperature 104 DEG C, owing to improve boiler feed temperature, in order to prevent boiler feed pump generation cavitation phenomenons, just thermal deaerator must be arranged on the certain altitude apart from entrance of water-supplying pump, to ensure the positive pressure head that boiler feedwater Pump Suction Nozzle place is necessary.According to past specification, the thermal deaerator in boiler room is all arranged on the floor that absolute altitude is 6-7 rice usually.If in boiler room in technological design, oxygen-eliminating device can be arranged on lower absolute altitude place 3-4 rice, or even reduce and the same absolute altitude of feed pump, for the mill construction simplifying boiler room, reduce investment outlay, accelerating construction progress is very large meaning.
Summary of the invention
The purpose of this utility model provides the boiler water-feeding device that a kind of structure is simple, can simplify the reduction oxygen-eliminating device setting height(from bottom) of boiler mill construction.
The purpose of this utility model can be realized by following measures: a kind of boiler water-feeding device reducing oxygen-eliminating device setting height(from bottom), includes except oxygen device, boiler feed pump, it is characterized in that, also has Venturi tube, stop valve; The delivery outlet of boiler feed pump is connected with the inlet cylinders section of Venturi tube, the negative pressure pipe of the cylinder trunnion section of Venturi tube is connected with the outlet except oxygen device, the circular cone diffuser of Venturi tube is connected with stop valve, and stop valve delivery outlet one branch road connects boiler feedwater input pipe, another branch road is connected with boiler feed pump input port.
Compared with prior art, have employed a kind of boiler water-feeding device reducing oxygen-eliminating device setting height(from bottom) that the utility model proposes, tool has the following advantages: the utility model only needs at pump discharge, increase by a bypass, install Venturi tube and a stop valve, the static pressure of boiler feedwater pump inlet can be regulated by stop valve aperture, thus make the setting height(from bottom) of reduction oxygen-eliminating device, avoid boiler feedwater pump cavitation to damage.
Accompanying drawing explanation
Fig. 1 is the example structure schematic diagram that the utility model proposes.
Detailed description of the invention
Below in conjunction with accompanying drawing, detailed description of the invention is elaborated: Fig. 1 is an embodiment of the present utility model.In figure, a kind of boiler water-feeding device reducing oxygen-eliminating device setting height(from bottom), includes except oxygen device 1, boiler feed pump 2, Venturi tube 3, stop valve 4; The delivery outlet of boiler feed pump 2 is connected with the inlet cylinders section of Venturi tube 3, the negative pressure pipe of the cylinder trunnion section of Venturi tube 3 is connected with the outlet except oxygen device 1, the circular cone diffuser of Venturi tube 3 is connected with stop valve 4, and stop valve delivery outlet one branch road connects boiler feedwater input pipe, another branch road is connected with boiler feed pump input port.In this structure, by the change of sectional area in Venturi tube pipe, to increase in the cylinder larynx pipe section flow rate of Venturi tube, the reduction of fluid pressure, thus produce suction-operated, suck boiler feedwater in oxygen-eliminating device.Do like this and not only increase the increase of boiler feedwater pump inlet water pressing head, reduce the setting height(from bottom) of oxygen-eliminating device, the cavitation erosion simultaneously avoiding boiler feed pump damages.Stop valve in this structure can regulate the static pressure of boiler feedwater pump inlet.
The embodiment provided above does not form restriction of the present utility model, and in this area, those skilled in the art make various distortion within the scope of the appended claims or revise all in protection domain.
Claims (1)
1. reduce a boiler water-feeding device for oxygen-eliminating device setting height(from bottom), include except oxygen device, boiler feed pump, it is characterized in that, also have Venturi tube, stop valve; The delivery outlet of described boiler feed pump is connected with the inlet cylinders section of Venturi tube, the negative pressure pipe of the cylinder trunnion section of Venturi tube is connected with the outlet except oxygen device, the circular cone diffuser of Venturi tube is connected with stop valve, and stop valve delivery outlet one branch road connects boiler feedwater input pipe, another branch road is connected with boiler feed pump input port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520801700.0U CN205037290U (en) | 2015-10-13 | 2015-10-13 | Reduce boiler feed water device of oxygen -eliminating device mounting height |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520801700.0U CN205037290U (en) | 2015-10-13 | 2015-10-13 | Reduce boiler feed water device of oxygen -eliminating device mounting height |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205037290U true CN205037290U (en) | 2016-02-17 |
Family
ID=55296190
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520801700.0U Expired - Fee Related CN205037290U (en) | 2015-10-13 | 2015-10-13 | Reduce boiler feed water device of oxygen -eliminating device mounting height |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205037290U (en) |
-
2015
- 2015-10-13 CN CN201520801700.0U patent/CN205037290U/en not_active Expired - Fee Related
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160217 Termination date: 20191013 |