CN204022536U - A kind of device preventing Nets impregnated water outlet suction pump sky from taking out - Google Patents
A kind of device preventing Nets impregnated water outlet suction pump sky from taking out Download PDFInfo
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- CN204022536U CN204022536U CN201420314255.0U CN201420314255U CN204022536U CN 204022536 U CN204022536 U CN 204022536U CN 201420314255 U CN201420314255 U CN 201420314255U CN 204022536 U CN204022536 U CN 204022536U
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Abstract
The utility model provides a kind of device preventing Nets impregnated water outlet suction pump sky from taking out, and it comprises membrane bioreactor, suction pump, water sprayer and water receiver.Membrane bioreactor is connected to the main that catchments of level via collection branch pipe, and the main that catchments is connected with the water absorption tube of suction pump.Suction pump is connected to drainage channel via the first rising pipe, and suction pump is also connected to water receiver via the second rising pipe.Water receiver is connected to the feed-water end of suction pump via return line.Water sprayer is arranged on the second rising pipe, and its water inlet port is connected to the second rising pipe, and suction port is connected with the main that catchments via air suction pipe, and outlet port is connected to water receiver.Catchment main and/or suction pump water absorption tube on be provided with liquidometer.The utility model monitors liquid level in the water absorption tube of suction pump exactly by utilizing liquidometer, thus after accumulation air to a certain degree, can utilize water sprayer automatic vent, thus make the operation of suction pump unaffected.
Description
Technical field
The utility model relates to a kind of device preventing Nets impregnated water outlet suction pump sky from taking out.
Background technology
In recent years, along with improving constantly of standard of drainage, the engineer applied of immersion MBR (membrane bioreactor) is more and more general.In the process that immersion MBR applies, because the water outlet of immersion MBR adopts suction pump Smoking regime usually, it is negative pressure state that suction function can cause in the water absorption tube of suction pump (i.e. the main that catchments of MBR), causes dissolved gases in water is constantly discharged and accumulates gradually in the water absorption tube (i.e. the main that catchments of MBR) of suction pump.After this accumulation acquires a certain degree, will vapour lock be formed, cause suction pump sky to take out not water outlet.In order to maintain the continual and steady operation of suction pump, must take measures, ensureing that these gases are discharged in time being accumulated to be enough to affect before suction pump normally runs.
In prior art, the traditional method realizing above-mentioned purpose arranges off-gas pump at pipeline highest point, utilizes the start and stop of the vacuum degree control off-gas pump in pipeline or additive vessel.But in fact, the vacuum tightness in suction pump water absorption tube is only relevant with chocking-up degree with the pollution of film, with to discharge tolerance in water not directly related.Therefore, vacuum tightness directly can not reflect air capacity truly.In addition, along with the operation of system, the continuous blocking of film, the level of vacuum that suction needs continues to increase, and the gas discharged thus also can get more and more, so the burst size of gas neither be fixed all the time.Therefore, the solution of prior art can not solve gas buildup well thus affect the problem that suction pump normally runs.
In view of this, this area wishes to develop a kind of method making discharge reaction in time to air capacity in suction pump water absorption tube, really to ensure that suction pump normally runs to greatest extent.
Utility model content
The utility model, for the problems referred to above, proposes a kind of device preventing Nets impregnated water outlet suction pump sky from taking out.
Particularly, the utility model provides a kind of device preventing Nets impregnated water outlet suction pump sky from taking out, and it comprises membrane bioreactor, suction pump, water sprayer and water receiver.Membrane bioreactor is connected to the main that catchments of level via collection branch pipe, and the main that catchments is connected with the water absorption tube of suction pump.Suction pump is connected to drainage channel via the first rising pipe, and suction pump is also connected to water receiver via the second rising pipe.Water receiver is connected to the feed-water end of suction pump via return line.Water sprayer is arranged on the second rising pipe, and the water inlet port of water sprayer is connected to the second rising pipe, and the suction port of water sprayer is connected with the main that catchments via air suction pipe, and the outlet port of water sprayer is connected to water receiver.Catchment on main and/or water absorption tube and be provided with liquidometer.
Preferably, catchment on main and water absorption tube and be only provided with a liquidometer.Alternatively, catchment on main and water absorption tube and be respectively arranged with a liquidometer.
Preferably, air suction pipe is provided with the vent valve that can only outwards be vented.More preferably, vent valve is vacuum breaker.
Preferably, when the liquid level that liquidometer monitors in water absorption tube drop to start to affect designated water level that suction pump normally runs time, valve on valve on the water absorption tube connected with the main that catchments and the first rising pipe is closed automatically, valve on valve on the return line be connected with water receiver and the second rising pipe is opened automatically, suction pump utilizes the water cycle in water receiver to run, and the suction opening on driving water sprayer is via air suction pipe air-breathing from catchment main and water absorption tube.
Preferably, the valve on the valve on the valve on the valve in the collection branch pipe of membrane bioreactor, the water absorption tube of suction pump, the first rising pipe of suction pump, the second rising pipe of suction pump and the valve on return line are pneumavalve or motorized valve.
The utility model monitors liquid level in the water absorption tube of suction pump exactly by utilizing liquidometer, thus after accumulation air to a certain degree, can utilize water sprayer automatic vent, thus make the operation of suction pump unaffected.
Accompanying drawing explanation
Below with reference to accompanying drawings specific embodiment of the utility model is described, wherein:
Fig. 1 is the schematic diagram according to the device preventing Nets impregnated water outlet suction pump sky from taking out of the present utility model, and
Fig. 2 is the principle of work schematic diagram of water sprayer.
Embodiment
Clearly understand to make the technical solution of the utility model and advantage, below in conjunction with accompanying drawing, exemplary embodiment of the present utility model is described in more detail, obviously, described embodiment is only a part of embodiment of the present utility model, instead of all embodiments is exhaustive.
Contriver of the present utility model carefully studies the problems referred to above, discovery solves the problem two conditions: first will understand the air capacity in suction pump water absorption tube, to determine whether to reach gas exhaust inspecting point, second will while discharging accumulation gas in time, there is enough water to occupy the space originally discharged occupied by gas, eliminate vapour lock.
Accordingly, of the present utility modelly following solution is inventors herein proposed.
As shown in Figure 1, a kind of device preventing Nets impregnated water outlet suction pump sky from taking out mainly comprises membrane bioreactor 10, suction pump 20, water sprayer 30 and water receiver 40.Because device of the present utility model is compared with the device of prior art, its improvements are mainly the measure preventing suction pump sky from taking out, therefore this specification sheets concentrates on and describes these parts that changes compared to existing technologies, and part same as the prior art will no longer describe.
Membrane bioreactor 10 is connected to the main 12 that catchments of level via some parallel collection branch pipe 11 being provided with valve 111.The main 12 that catchments is connected with the water absorption tube 21 of suction pump 20.Suction pump 20 is connected to drainage channel (not shown) via the first rising pipe 22 being provided with valve 221, for being run by the water proper drainage aspirated from membrane bioreactor 10 by suction pump 20.Suction pump 20 is also connected to via the second rising pipe 23 being provided with valve 231 water receiver 40 that certain water yield is housed.The bottom of water receiver 40 is connected to the feed-water end of suction pump 20 via the return line 41 being provided with valve 411.
Water sprayer 30 is arranged on the second rising pipe 23.The water inlet port of water sprayer 30 is connected to the second rising pipe 23, and the suction port of water sprayer 30 is connected with the main 12 that catchments of level via air suction pipe 13, and the outlet port of water sprayer 30 is connected to water receiver 40.Air suction pipe 13 is provided with the vent valve 131 that can only outwards be vented, its form can be vacuum breaker.
In the utility model, liquidometer 19 is set, to monitor the liquid level change of catchmenting in main 12 and water absorption tube 21 catchmenting on main 12 and/or water absorption tube 21.Particularly, according to the concrete structure of whole device, a liquidometer can be only set catchmenting in main 12 and water absorption tube 21, such as shown in Figure 1 liquidometer 12 is set in the position can monitoring liquid level in catchment main 12 and water absorption tube 21 simultaneously, particularly, catchment main 12 and vertical water absorption tube 21 intersection of level, because be first the water level decreasing (from top to bottom) catchmented in main 12 of level, be then only the water level decreasing in vertical water absorption tube 21.Additionally, if the liquid level of catchmenting in main 12 and water absorption tube 21 cannot be monitored a position simultaneously, so also respectively a liquidometer can be set respectively catchmenting in main 12 and water absorption tube 21, if such as catchment main 12 and water absorption tube 21 are not above-mentioned level and vertically arrange.The utility model does not limit this, as long as can monitor the liquid level change of catchmenting in main 12 and water absorption tube 21.
The specific works process that the device preventing Nets impregnated water outlet suction pump sky from taking out of the present utility model prevents suction pump 20 sky from taking out is as follows.When the liquid level in the main 12 that catchments reaches main top, illustrate in the main 12 that catchments there is no air or at least considerably less, therefore there is not vaccuum phenomenon, therefore the normal operation of suction pump 20 is unaffected.Now, valve 211 on the water absorption tube 21 of suction pump 20 and the valve 221 on the first rising pipe 22 are opened, with be equipped with certain water yield water receiver 40 bottom connection return line 41 on valve 411 and valve 231 on the second rising pipe 23 close, to carry out proper drainage operation by the first rising pipe 22.When the carrying out along with pumping operation, suction function causes in water absorption tube 21 and the main 12 that catchments that is communicated with it in negative pressure state, dissolved gases in water constantly discharged and accumulates gradually in the top of main 12 of catchmenting, causing the liquid level of catchmenting in main 12 and even water absorption tube 21 to decline gradually.When liquidometer 19 liquid level monitored in water absorption tube 21 drops to the designated water level starting to affect the normal operation of suction pump 20, valve 211 on the water absorption tube 21 connected with the main 12 that catchments and the valve 221 on the first rising pipe 22 are closed automatically, and the valve 411 on the return line 41 be connected with water receiver 40 and the valve 231 on the second rising pipe 23 are opened automatically.Suction pump 20 utilizes the water cycle in water receiver 40 to run, and the suction opening on driving water sprayer 30 is via air suction pipe 13 air-breathing from catchment main 12 and water absorption tube 21.In breathing process, the water extracted out from membrane bioreactor 10 substitutes Exhaust Gas gradually and taken up space.Along with the carrying out of exhaust moisturizing, when liquidometer 19 monitor the liquid level of catchmenting in main 12 reach top time, illustrate that gas is discharged complete substantially, so be equipped with certain water yield water receiver 40 bottom connection return line 41 on valve 411 and valve 231 on the second rising pipe 23 close, and the valve 211 on the water absorption tube 21 of suction pump 20 and the water discharging valve 221 on rising pipe 22 reopen, to carry out proper drainage operation by rising pipe 22, normal pumping can be recovered and run.
In the utility model, valve 111,211,221,231,411 can be pneumavalve or motorized valve.
Water sprayer is universal component of the prior art, and its basic functional principle is according to energy conservation, adopts Venturi structure, increase at throat's flow velocity, kinetic energy improves and pressure energy declines, so that pressure drop is to producing suction function lower than normal atmosphere, is sucked by gas.Below, composition graphs 2 is explained the principle of work of water sprayer.
As shown in Figure 2, water sprayer 30 comprises nozzle 31, inlet pipe 32, suction chamber 33 and diffuser tube 34.Entered nozzle 31 place of water sprayer 30 by valve 231 from the water of suction pump 20, high-speed jet is become due to convergent effect, make to form micro-vacuum state in suction chamber 33, thus the air catchmented in main 12 is sucked suction chamber 33 via inlet pipe 32, then discharge through diffuser tube 34.Thus, water sprayer 30 is utilized to achieve the discharge of the air catchmented in main 12.
In the utility model, by utilizing liquidometer to monitor liquid level in the water absorption tube of suction pump exactly, thus after accumulation air to a certain degree, water sprayer automatic vent can be utilized, thus makes the operation of suction pump unaffected.
Above embodiment only in order to the technical solution of the utility model to be described, but not is limited.Therefore, when not deviating from spirit of the present utility model and essence thereof, those skilled in the art can make various change, replacement and modification.Obviously, but these change, replace and modification all should be covered by within the protection domain of the utility model claim.
Claims (7)
1. the device preventing Nets impregnated water outlet suction pump sky from taking out, it is characterized in that comprising membrane bioreactor (10), suction pump (20), water sprayer (30) and water receiver (40), described membrane bioreactor (10) is connected to the main that catchments (12) of level via collection branch pipe (11), the described main that catchments (12) is connected with the water absorption tube (21) of described suction pump (20), described suction pump (20) is connected to drainage channel via the first rising pipe (22), described suction pump (20) is also connected to water receiver (40) via the second rising pipe (23), described water receiver (40) is connected to the feed-water end of described suction pump (20) via return line (41),
Described water sprayer (30) is arranged on described second rising pipe (22), the water inlet port of described water sprayer (30) is connected to described second rising pipe (22), the suction port of described water sprayer (30) is connected with the described main that catchments (12) via air suction pipe (13), the outlet port of described water sprayer (30) is connected to described water receiver (40)
The water absorption tube (21) of the wherein said main that catchments (12) and/or described suction pump (20) is provided with liquidometer (19).
2. prevent the device taken out of Nets impregnated water outlet suction pump sky as claimed in claim 1, it is characterized in that, described in catchment on main (12) and described water absorption tube (21) and be only provided with a liquidometer (19).
3. prevent the device that Nets impregnated water outlet suction pump sky is taken out as claimed in claim 1, it is characterized in that, described in catchment on main (12) and described water absorption tube (21) and be respectively arranged with a liquidometer (19).
4. the device preventing Nets impregnated water outlet suction pump sky from taking out as described in as arbitrary in claims 1 to 3, is characterized in that described air suction pipe (13) being provided with the vent valve (131) that can only outwards be vented.
5. the device preventing Nets impregnated water outlet suction pump sky from taking out as claimed in claim 4, is characterized in that described vent valve (131) is vacuum breaker.
6. the device preventing Nets impregnated water outlet suction pump sky from taking out as described in as arbitrary in claims 1 to 3, it is characterized in that when described liquidometer (19) liquid level monitored in described water absorption tube (21) drops to the designated water level starting to affect the normal operation of described suction pump (20), valve (211) on the water absorption tube (21) connected with the main that catchments (12) and the valve (221) on the first rising pipe (22) are closed automatically, valve (411) on the return line (41) be connected with water receiver (40) and the valve (231) on the second rising pipe (23) are opened automatically, suction pump (20) utilizes the water cycle in water receiver (40) to run, suction opening in driving water sprayer (30) is via air suction pipe (13) air-breathing from the main that catchments (12) and water absorption tube (21).
7. prevent the device that Nets impregnated water outlet suction pump sky is taken out as claimed in claim 6, it is characterized in that the valve (111) in the collection branch pipe (11) of described membrane bioreactor (10), valve (211) on the water absorption tube (21) of described suction pump (20), valve (221) on first rising pipe (22) of described suction pump (20), valve (231) on second rising pipe (23) of described suction pump (20), and the valve (411) on return line (41) is pneumavalve or motorized valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420314255.0U CN204022536U (en) | 2014-06-12 | 2014-06-12 | A kind of device preventing Nets impregnated water outlet suction pump sky from taking out |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420314255.0U CN204022536U (en) | 2014-06-12 | 2014-06-12 | A kind of device preventing Nets impregnated water outlet suction pump sky from taking out |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204022536U true CN204022536U (en) | 2014-12-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420314255.0U Active CN204022536U (en) | 2014-06-12 | 2014-06-12 | A kind of device preventing Nets impregnated water outlet suction pump sky from taking out |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204022536U (en) |
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2014
- 2014-06-12 CN CN201420314255.0U patent/CN204022536U/en active Active
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