CN201187660Y - Multilevel cavitation eliminating apparatus of condensed water automatic recovering device - Google Patents
Multilevel cavitation eliminating apparatus of condensed water automatic recovering device Download PDFInfo
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- CN201187660Y CN201187660Y CNU2008200285097U CN200820028509U CN201187660Y CN 201187660 Y CN201187660 Y CN 201187660Y CN U2008200285097 U CNU2008200285097 U CN U2008200285097U CN 200820028509 U CN200820028509 U CN 200820028509U CN 201187660 Y CN201187660 Y CN 201187660Y
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- cavitation erosion
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Abstract
The utility model relates to a multilevel cavitation erosion eliminating device for an automatic condensed water recovery device, which comprises a negative pressure eliminating pipe, a negative pressure eliminating grill, a first level reducer arranged between a water collector and the water inlet pipe of a hot water pump as well as a second level reducer arranged between the hot water pump and the water inlet pipe of the hot water pump; diameters of the first level and the second level reducers are gradually reduced; the negative pressure eliminating grill is arranged in the negative pressure eliminating pipe, and the negative pressure eliminating pipe is arranged at the inner side of the bottom surface of the water collector. The utility model solves the technical problem of easily generated cavitation erosion of the prior condensed water recovery devices, eliminates the possibility of rotational flow at the drainage outlet of the water collector, and completely eliminates the negative pressure generation of the saturated water, thereby avoiding the cavitation erosion of the high temperature water pumps, and prolonging the service life of the high temperature delivery pumps.
Description
Technical field
The cavitation erosion cancellation element that the utility model relates in a kind of condensed-water recovering device is received.
Background technique
Be to adopt steam heating system to heat with heat in the industrial processes such as China's oil, chemical industry, metallurgy, electric power, papermaking, rubber, food, follow production process can produce the more amount condensed water in high temperature.Water of condensation has higher latent heat, and water quality is good, and Subcoold temperature is smaller, and near saturated, the required energy consumption of second use is very low.The recycling water of condensation can reduce water resources consumption, reduces environmental pollution, has high economic value and environment protection significance.
The method of the recovery of conventional high-temperature water of condensation is to adopt the open system of straight-through atmosphere.But there is the drawback of heat waste, boiler water quality waste, contaminated vapor in open type water of condensation recovery plant.At first, open-type condensate tank has steam-expelling port directly to communicate with atmosphere, water of condensation will produce a large amount of secondary flash steams because of pressure descends after entering water tank, because the existence of the latent heat of vaporization, secondary vapour carries a large amount of high-quality water and heat energy is discharged in the atmosphere, condensing water temperature is descended rapidly, cause a large amount of energy and water resource waste, so a large amount of discharge of steam is in atmosphere, also can cause thermo-pollution, noise, to the manufacturing mechanism life-span, producers' health works the mischief, if open-type condensate tank is installed at basement, above-mentioned contradiction will be more outstanding.Secondly, open-type condensate tank is because condensate pump easily cavitates, so it is very big that volume is all done, so that water of condensation stops the sufficiently long time in water tank, temperature is fully lowered, and water of condensation can drop to lower temperature like this, and heat energy is further wasted, and water tank and water pump are arranged apart, and floor space is big.The 3rd, open-type condensate tank leads directly to atmosphere, and the water of condensation of deoxygenation dissolved oxygen once more originally not only makes water tank and condensate line because of oxygen corrosion reduction of service life, also can increase deoxygenation, softening cost.Manufacturing enterprise brings, water vapour high such as the power consumption all drawbacks such as serious, contaminated vapor and cost of production increase of scattering and disappearing because of adopting traditional open type water of condensation recovery plant to its production.
But, a lot of problem of airtight existence of open type recovery plant.Originally water of condensation itself is a supersaturation water, i.e. steam water two phase flow, and the water of condensation of high temperature is directly carried with pump and is very easily caused the cavitation erosion that is known as " pump cancer ".Because can't solve the condensate pump cavitation erosion, so, water tank can only be communicated with atmosphere in the past, make water of condensation when recovery enters water tank, fully cooling bleeds off secondary vapour, with thermal waste, simultaneously by oxygen contamination, thus can only be with part water and energy recovery, and What is more all drains it.
Summary of the invention
The multistage cavitation erosion cancellation element that the purpose of this utility model provides a kind of water of condensation automatic recycling device has solved the technical problem that existing condensed-water recovering device is easy to generate cavitation phenomenon.
Technical solution of the present utility model is:
A kind of multistage cavitation erosion cancellation element of water of condensation automatic recycling device, its special way is, it comprise be arranged on the one-level reducing 18 between water-collecting machine 11 and the hot water pump intake pipe 17 and be arranged on hot water pump intake pipe 17 and hot water pump 13 between secondary reducing 14, described one-level reducing 18 and secondary reducing 14 diminish step by step along the diameter of water (flow) direction.
Above-mentioned multistage cavitation erosion cancellation element comprises that also the negative pressure of the bigger diameter end that is arranged on one-level reducing 18 is eliminated pipe 15 and negative pressure is eliminated grid 16, described negative pressure is eliminated grid 16 and is arranged in the negative pressure elimination pipe 15, and described negative pressure is eliminated the inboard, bottom surface that pipe 15 is arranged on water-collecting machine 11.
It is Arc grid from pipe 15 mouth of pipe place bendings to negative pressure that eliminate that above-mentioned negative pressure is eliminated grid 16.
Above-mentioned negative pressure is eliminated grid 16 and be can be parallel grid.
Above-mentioned negative pressure is eliminated grid 16 and also be can be mesh grille.
The advantage that the utlity model has is: the multistage cavitation erosion cancellation element of the utility model water of condensation automatic recycling device, by between water-collecting machine and hot water pump, being provided with the diameter changing device that two-stage reduces radius gradually, the negative pressure that can eliminate saturation water fully produces, the negative pressure of eliminating in pipe and the negative pressure elimination pipe by the negative pressure that is arranged on the water-collecting machine inwall bottom surface is eliminated grid again, eliminate the possibility that water-collecting machine drain opening place eddy flow produces fully, thereby eliminated the generation of negative pressure.Because there is not the generation of negative pressure, so the saturation water that enters in the hot water pump does not have bubble, finally solved the high-temperature water pump cavitation problem of being known as " pump cancer ", prolonged the working life of high temperature transfer pump.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Wherein: the 2-flash drum, 9-flash drum snorkel, the 10-jet pump, the 11-water-collecting machine, the 13-hot water pump, 14-secondary reducing, the 15-negative pressure is eliminated pipe, and the 16-negative pressure is eliminated grid, 17-hot water pump intake pipe, 18-one-level reducing.
Embodiment
The water of condensation automatic recycling device at the utility model place, comprise with the flash drum that is connected with hot equipment, with the tank connected water-collecting machine of flash distillation, the jet pump that is connected with water-collecting machine, the injection delivery side of pump connects oxygen-eliminating device or steam boiler, then the water of condensation automatic recycling device with constitute a closed loop with hot loop, solve secondary flash-off steam injection by jet pump and reclaim problem.
The multistage erosion device of cooling down of the utility model water of condensation automatic recycling device, comprise and be arranged on the one-level reducing between water-collecting machine and the hot water pump intake pipe and be arranged on secondary reducing between hot water pump intake pipe and the hot water pump, one-level reducing and secondary reducing diminish step by step along the diameter of water (flow) direction, bigger diameter end at the one-level reducing is provided with negative pressure elimination pipe and negative pressure elimination grid, negative pressure is eliminated grid and is arranged in the negative pressure elimination pipe, and negative pressure is eliminated the inboard, bottom surface that pipe is arranged on water-collecting machine.It is Arc grid from the place's bending of the pipe mouth of pipe to negative pressure that eliminate that negative pressure is eliminated grid, is specially parallel grid.
The utility model water of condensation automatic recycling device multistage cooled down, and cavitation erosion is to the destruction of high temperature water pump when having eliminated the flash distillation of condensed water in high temperature secondary for the erosion device, and the negative pressure that comprise the one-level reducing that is arranged between water-collecting machine and the hot water pump intake pipe, be arranged on secondary reducing between hot water pump intake pipe and the hot water pump, is arranged on the bigger diameter end of one-level reducing eliminates pipe and negative pressure is eliminated grid; One-level reducing and secondary reducing diminish step by step along the diameter of water (flow) direction; Negative pressure is eliminated grid and is arranged in the negative pressure elimination pipe, and negative pressure is eliminated the inboard, bottom surface that pipe is arranged on water-collecting machine; It is to eliminate the Arc grid of managing mouth of pipe place's bending to negative pressure that negative pressure is eliminated grid, can be adopted as the parallel grid form, but also mesh grille form.
Claims (5)
1, a kind of multistage cavitation erosion cancellation element of water of condensation automatic recycling device, it is characterized in that: it comprise be arranged on the one-level reducing (18) between water-collecting machine (11) and the hot water pump intake pipe (17) and be arranged on hot water pump intake pipe (17) and hot water pump (13) between secondary reducing (14), described one-level reducing (18) and secondary reducing (14) diminish step by step along the diameter of water (flow) direction.
2, the multistage cavitation erosion cancellation element of water of condensation automatic recycling device according to claim 1, it is characterized in that: described multistage cavitation erosion cancellation element comprises that also the negative pressure of the bigger diameter end that is arranged on one-level reducing (18) is eliminated pipe (15) and negative pressure is eliminated grid (16), described negative pressure is eliminated grid (16) and is arranged in the negative pressure elimination pipe (15), and described negative pressure is eliminated the inboard, bottom surface that pipe (15) is arranged on water-collecting machine (11).
3, the multistage cavitation erosion cancellation element of water of condensation automatic recycling device according to claim 2 is characterized in that: described negative pressure is eliminated grid (16) for eliminate the Arc grid of pipe (15) mouth of pipe place bending to negative pressure.
4, according to the multistage cavitation erosion cancellation element of claim 2 or 3 described water of condensation automatic recycling devices, it is characterized in that: described negative pressure is eliminated grid (16) and is parallel grid.
5, according to the multistage cavitation erosion cancellation element of claim 2 or 3 described water of condensation automatic recycling devices, it is characterized in that: described negative pressure is eliminated grid (16) and is mesh grille.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200285097U CN201187660Y (en) | 2008-03-07 | 2008-03-07 | Multilevel cavitation eliminating apparatus of condensed water automatic recovering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200285097U CN201187660Y (en) | 2008-03-07 | 2008-03-07 | Multilevel cavitation eliminating apparatus of condensed water automatic recovering device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201187660Y true CN201187660Y (en) | 2009-01-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200285097U Expired - Fee Related CN201187660Y (en) | 2008-03-07 | 2008-03-07 | Multilevel cavitation eliminating apparatus of condensed water automatic recovering device |
Country Status (1)
| Country | Link |
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| CN (1) | CN201187660Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103104778A (en) * | 2012-12-30 | 2013-05-15 | 深圳市广前电力有限公司 | Air congestion prevention device for water treatment system |
-
2008
- 2008-03-07 CN CNU2008200285097U patent/CN201187660Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103104778A (en) * | 2012-12-30 | 2013-05-15 | 深圳市广前电力有限公司 | Air congestion prevention device for water treatment 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: 20090128 Termination date: 20140307 |