CN204921280U - Single -output positive displacement high pressure boiler water -feeding pump - Google Patents
Single -output positive displacement high pressure boiler water -feeding pump Download PDFInfo
- Publication number
- CN204921280U CN204921280U CN201520534524.9U CN201520534524U CN204921280U CN 204921280 U CN204921280 U CN 204921280U CN 201520534524 U CN201520534524 U CN 201520534524U CN 204921280 U CN204921280 U CN 204921280U
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- Prior art keywords
- pressure
- boiler
- high pressure
- water
- assembly
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- 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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Abstract
The utility model relates to a single -output positive displacement high pressure boiler water -feeding pump for trades such as chemical industry, metallurgy, thermoelectricity, the feedwater of high -pressure steam boiler, include: hydraulic control system (8), driving oil cylinder assembly (7), water -feeding pump assembly (6), inlet outlet check valve subassembly (5, 4), business turn over water pipe subassembly (3, 2), pipeline voltage regulator device (1) etc. Compare for water pump assembly with centrifugal (multistage), this subassembly has that the energy consumption is lower, the feedwater plot ratio is higher, the life -span is longer, it is more simple and convenient to use, change advantage such as maintenance.
Description
Technical field
The present invention relates to a kind of single delivery volume formula pump assembly for high pressure boiler water supply, belong to the technical fields such as chemical industry, metallurgy, thermoelectricity.
Background technique
At present, when the industries such as chemical industry, metallurgy, thermoelectricity are steam boiler conveying high-pressure water, all adopt centrifugal (multistage) feed water pump assembly, drive multi-stage impeller to rotate generation centrifugal force by motor and realize the extraction of low-pressure water and the conveying of high pressure water.The impeller of this type of pump and the gap of the pump housing are comparatively large, and the swept volume rate of pump is lower, energy consumption is higher, total efficiency≤60%.The hydraulic pressure of conveying is higher, and cause impeller often fragile, working life is shorter, and service cycle is shorter, costly.Motor rated power is larger.When needing higher discharge pressure, just needing multiple stage centrifugal pump to connect and using, more taking electricity, poor efficiency.
Summary of the invention
For above-mentioned prior art, when the technical problem to be solved in the present invention is to provide a kind of work, pump plot ratio is higher, energy consumption is lower, working efficiency is higher, the hydraulic pressure of conveying is higher, the life-span is longer, it is easier to use, be easier to the feed water pump assembly safeguarded.
For solving the problems of the technologies described above, the invention provides a kind of single delivery volume formula high pressure water feeding pump for boiler assembly, by hydraulic control system, drive hydraulic cylinder assembly, feed water pump assembly, intake-outlet check valve assembly, turnover water pipe assembly, pipeline voltage stabilizer etc. to form.Wherein: drive hydraulic cylinder assembly by driving cylinder block, driving oil cylinder piston, driving oil cylinder oil inlet and outlet etc. to form.Feed water pump assembly is made up of the feed water pump pump housing, feed water pump piston, feed water pump piston rod etc.Oil cylinder piston is driven to connect as a whole with feed water pump piston rod, feed water pump piston.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
As shown in Figure 1, during work, power oil is provided by hydraulic control system 8, drive oil cylinder piston 7d(7a, 7b, 7c to be cylinder block assembly) drive feed water pump piston 6c, (6d is feed water pump piston rod, 6b is positive-displacement pump) move back and forth, the volume of corresponding change feed water pump active chamber 6a, drive intake-outlet one-way valve 3,4,5 corresponding continuous closedown and unlatching, realize constantly extracting low-pressure water from water source by water inlet pipe component 3, by one end of the outlet pipe component 2 of three-port structure, the water after pressurization is transported to boiler.The other end of outlet pipe component 2 is connected with pipeline voltage stabilizer 1, to guarantee the stable water pressure exported, reduces the impact shock of high pressure water to pipeline and equipment, realizes flow trim.
The gap of piston and the pump housing is very little, can not leak, and make the plot ratio of pump up to >=95%, utilization rate of electrical is higher, and energy consumption is lower, and send water efficiency higher, assembly is longer for working life, and Cost of repair and maintenance is lower.
This feed water pump has following characteristics:
1. for the high pressure steam boiler feedwater in the industries such as chemical industry, metallurgy, electric power.
2. feed pressure is up to 50MPa, and common centrifugal pump cannot reach high pressure.
3. drive feed water pump pistons work by hydraulic transmission.
4. energy consumption is lower, feedwater plot ratio is higher, the life-span is longer, use easier, more easy care.
Claims (2)
1. a single delivery volume formula high pressure water feeding pump for boiler, it is by machinery, hydraulic pressure, electric control system is formed, for high pressure boiler water supply, it is characterized in that, along driving hydraulic cylinder assembly (7) axis one-sided connection feed water pump assembly (6), the intake-outlet place of described feed water pump assembly (6) connect respectively into, water outlet check valve assembly (5, 4), described check valve assembly (5, 4) outside connect respectively into, outlet pipe component (3, 2), one end connecting pipe stable-pressure device (1) of described outlet pipe component (2), the other end connects boiler and realizes feedwater, described driving oil cylinder piston (7d) and described feed water pump piston rod (6d), feed water pump piston (6c) connects as a whole, when hydraulic control system (8) drives described oil cylinder piston (7d) back and forth movement, by motion step by step and transmission of power, just realize being alternately the high-pressure autoclave conveying high-pressure water on both sides.
2. one according to claim 1 single delivery volume formula high pressure water feeding pump for boiler, it is characterized in that, feed pressure is up to 50MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520534524.9U CN204921280U (en) | 2015-07-22 | 2015-07-22 | Single -output positive displacement high pressure boiler water -feeding pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520534524.9U CN204921280U (en) | 2015-07-22 | 2015-07-22 | Single -output positive displacement high pressure boiler water -feeding pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204921280U true CN204921280U (en) | 2015-12-30 |
Family
ID=54970414
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520534524.9U Expired - Fee Related CN204921280U (en) | 2015-07-22 | 2015-07-22 | Single -output positive displacement high pressure boiler water -feeding pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204921280U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108679040A (en) * | 2018-08-01 | 2018-10-19 | 江苏恒立液压股份有限公司 | Depressurize oil cylinder |
-
2015
- 2015-07-22 CN CN201520534524.9U patent/CN204921280U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108679040A (en) * | 2018-08-01 | 2018-10-19 | 江苏恒立液压股份有限公司 | Depressurize oil cylinder |
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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: 20151230 Termination date: 20190722 |