CN203096893U - Priming device for waste water - Google Patents
Priming device for waste water Download PDFInfo
- Publication number
- CN203096893U CN203096893U CN 201320063921 CN201320063921U CN203096893U CN 203096893 U CN203096893 U CN 203096893U CN 201320063921 CN201320063921 CN 201320063921 CN 201320063921 U CN201320063921 U CN 201320063921U CN 203096893 U CN203096893 U CN 203096893U
- Authority
- CN
- China
- Prior art keywords
- waste water
- centrifugal pump
- priming device
- jar
- diversion jar
- 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 - Lifetime
Links
Images
Landscapes
- Control Of Non-Positive-Displacement Pumps (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model provides a priming device for waste water. The priming device for the waste water comprises a priming jar and a centrifugal pump, wherein the priming jar is connected with an underground waste water pool, and the centrifugal pump is used for pumping the waste water in the underground waste water pool through the priming jar. The priming device further comprises a vacuum pumping unit. The vacuum pumping unit is connected with the priming jar. The vacuum pumping unit is used for pumping air inside the priming jar. The priming device for the waste water is also capable of effectively achieving priming the waste water. The priming device not only comprises the centrifugal pump for priming work, but also comprises the vacuum pumping unit for pumping the vacuum to the priming jar. The vacuum pumping is carried out on the priming jar by the vacuum pumping unit, the centrifugal pump which stops working due to the fact that excessive gas or foam is pumped can continue working, and then protection to the centrifugal pump is achieved, the service life of the centrifugal pump is prolonged, and working stability of the whole priming device is improved.
Description
Technical field
The utility model belongs to the diversion technical field, is specifically related to a kind of priming device of waste water.
Background technology
Printed substrate industrial water amount is big, and kind of waste water is various, complicated component.The kind of this industrial wastewater comprises: clean waste water, printing ink wastewater, complexing waste water, concentrated acid waste water, concentrated base waste water, the processing of these waste water is extremely complicated, all needs classification centralized collection earlier, handles by diverse ways again.
Above-mentioned industrial wastewater generally flows automatically to underground wastewater disposal basin through delivery pipe, is depositing all industrial wastewaters in the underground wastewater disposal basin, and underground wastewater disposal basin is connected with the diversion jar.When needs are handled industrial wastewater, by the waste water in the centrifugal pump extraction diversion jar, waste water in the underground wastewater disposal basin is incorporated in the diversion jar, rely on impeller to rotate at a high speed by centrifugal pump then, force the liquid at impeller center to be set aside with very high speed, thereby be formed centrally low pressure in impeller, the liquid in the Lower tank (waste water) is therefore sucted continuously, handles thereby above-mentioned industrial wastewater is risen to all kinds of processing pond.Because the industrial wastewater composition that printed substrate production produces is complicated, contains a lot of foams in the waste water originally; When using centrifugal pump to extract waste water, because of the variation of waste water proportion also can produce a lot of foams; Perhaps, extract in the process of waste water at centrifugal pump, along with the reduction of liquid level in the underground wastewater disposal basin, waste water has obtained further mixing, a series of chemical reaction takes place between the various waste water produce more gas, and these gases can accumulate in diversion jar top.Like this, centrifugal pump can suck a lot of gases or foam in the course of the work, thereby causes lack of water to find time and damage centrifugal pump, has destroyed normal diversion work.
The utility model content
Technical problem to be solved in the utility model is at above shortcomings in the prior art, a kind of priming device of waste water is provided, this priming device can effectively carry out diversion to waste water, and realized maintenance for the centrifugal pump in the priming device, prolong the application life of centrifugal pump, thereby improved the stability of whole priming device work.
The technical scheme that solution the utility model technical problem is adopted provides a kind of priming device of waste water, comprise diversion jar, centrifugal pump, wherein, described diversion jar is connected with underground wastewater disposal basin, described centrifugal pump is used for extracting by described diversion jar the waste water of described underground wastewater disposal basin, described priming device also comprises vacuum unit, and described vacuum unit links to each other with described diversion jar, and described vacuum unit is used to extract the air in the described diversion jar.
Preferably, described vacuum unit adopts diaphragm pump.
Preferably, described diaphragm pump is connected with described centrifugal pump, and described diaphragm pump is used to extract the air in the described centrifugal pump.
Preferably, the input of described diaphragm pump is connected by first pipeline with described diversion jar, and described first pipeline is provided with controlled valve, and described controlled valve is used to control the break-make of described first pipeline.
Preferably, this priming device also comprises protected location, and described protected location is used for described centrifugal pump is protected.
Preferably, described protected location comprises water flow switch, and described water flow switch is used for controlling the keying of described centrifugal pump according to the streamflow regime in the described centrifugal pump.
Preferably, described protected location comprises electric contact negative-pressure vacuum table, and described electric contact negative-pressure vacuum table is used for controlling the keying of described vacuum unit according to the vacuum in the described diversion jar.
Preferably, described centrifugal delivery side of pump is connected with discharge pipe line, described discharge pipe line is provided with outfall at the output away from described centrifugal pump, discharge pipe line between the outfall of described centrifugal pump and described discharge pipe line is provided with flap valve, is back to again in the described centrifugal pump with the waste water that prevents outfall.
Preferably, the input of described centrifugal pump is connected by second pipeline with described diversion jar, and described second pipeline is provided with filter element, and described filter element is used for the waste water that flows in the described centrifugal pump in described diversion jar is filtered.
Preferably, described priming device also comprises alarm unit, described alarm unit comprises liquid level sensor and alarm, described liquid level sensor is arranged in the diversion jar, be used to monitor the liquid level of waste water in the described diversion jar, and control described alarm according to the liquid level of waste water in the described diversion jar and whether sound the alarm.
Preferably, described centrifugal delivery side of pump is connected with discharge pipe line, and described discharge pipe line is provided with that rubber is soft to be connect.
Preferably, also can be provided with water filling port on the described diversion jar, to be used for to the water filling of diversion jar.
Preferably, described priming device also comprises the content gauge that is used to indicate waste water liquid level in the diversion jar, and described content gauge is arranged in the diversion jar, and described diversion jar is provided with observation port over against the position of described content gauge, and described observation port adopts transparent material to make.
The priming device of the waste water that the utility model provides can effectively be realized the diversion for waste water; not only comprise the centrifugal pump that carries out diversion work in the described priming device; also comprise the vacuum unit that the diversion jar is vacuumized; vacuum unit is by vacuumizing for the diversion jar; can be so that because the too much gas of suction or foam and out-of-work centrifugal pump works on; thereby realized protection for centrifugal pump; prolong the application life of centrifugal pump, improved the stability of whole priming device work.
Description of drawings
Fig. 1 is the structural representation of the priming device of waste water among the utility model embodiment;
Among the figure: 1-diversion jar; The 2-centrifugal pump; The 3-diaphragm pump; The 4-strainer; 5-rubber is soft to be connect; The 6-water flow switch; 7-electric contact negative-pressure vacuum table; The 8-flap valve; The 9-liquid level sensor; The 10-content gauge; The 11-water injection valve; The 12-controlled valve; The 13-outfall; The 14-aqueduct.
The specific embodiment
For making those skilled in the art understand the technical solution of the utility model better, the utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Embodiment 1
Present embodiment provides a kind of priming device of waste water, comprise diversion jar 1, centrifugal pump 2, described diversion jar 1 is connected with underground wastewater disposal basin, described centrifugal pump 2 is used for extracting by described diversion jar 1 waste water of described underground wastewater disposal basin, wherein, described priming device also comprises vacuum unit, and described vacuum unit links to each other with described diversion jar 1, and described vacuum unit is used to extract the air in the diversion jar 1.
The priming device of the waste water that present embodiment provides can effectively be realized the diversion for waste water; not only comprise the centrifugal pump 2 that carries out diversion in the described priming device; also comprise the vacuum unit that diversion jar 1 is vacuumized; vacuum unit is by to vacuumizing in the diversion jar 1; can avoid centrifugal pump 2 and quit work because of too much gas of suction or foam; thereby realized protection for centrifugal pump 2; prolong the application life of centrifugal pump 2, also improved the stability of whole priming device work.
Embodiment 2
Present embodiment provides a kind of priming device of waste water, as shown in Figure 1, this priming device comprises diversion jar 1, centrifugal pump 2, described diversion jar 1 is connected with underground wastewater disposal basin, described centrifugal pump 2 is used for extracting by described diversion jar 1 waste water of described underground wastewater disposal basin, described priming device also comprises vacuum unit, and described vacuum unit links to each other with described diversion jar 1, and described vacuum unit is used to extract the air in the described diversion jar 1.
In the present embodiment, the priming device of described waste water is the priming device of the waste water of generation during printed substrate is produced.Because diversion jar 1 is connected with centrifugal pump 2, vacuum unit not only is used for diversion jar 1 is vacuumized, but also is used for centrifugal pump 2 is vacuumized.Preferably, described vacuum unit adopts diaphragm pump 3.In the present embodiment, vacuum unit specifically adopts diaphragm pump 3, and diaphragm pump 3 can be selected pneumatic diaphragm pump or electric diaphragm pump for use.Have various corrosivity soda acids in the general waste water, especially can contain various caustic acid alkali lye bodies, corrosivity organic matter in the waste water of printed substrate production usefulness, cause the air atmosphere in the diversion jar 1 also to be aggressive atmosphere, if adopt general vacuum pump as the vacuum unit in the present embodiment, be corroded easily.And diaphragm pump 3 is control pumps of a kind of acid-alkali-corrosive-resisting, is particularly useful for vacuumizing for the waste water system in the diversion jar 1.Certainly, the priming device of described waste water also can be other priming device of producing the waste water that produces, and described vacuum unit also can be other vacuum pump.
Before the waste water that uses centrifugal pump to extract in the underground wastewater disposal basin, need earlier with fills with water in the diversion jar 1 by diversion jar 1.Therefore, in the present embodiment, be provided with water filling port at the top of diversion jar 1, water filling port is communicated with external water source by pipeline, and described pipeline is provided with water injection valve 11.When needs are given 1 water filling of diversion jar, open water injection valve 11, external water source begins water filling by described pipeline in diversion jar 1; When the water level in the diversion jar 1 reaches default water level, then close water injection valve 11 and stop water filling.This moment the water filling port by diversion jar 1 to inject the effect of water in the diversion jar be air in the discharge diversion jar 1.The bottom of diversion jar 1 is provided with delivery port, and the input of centrifugal pump 2 is connected with the delivery port of diversion jar by second pipeline.
Centrifugal pump 2 is used for the water in the diversion jar 1 is extracted out, when the water that centrifugal pump 2 extracts in the diversion jar 1, keep sealing state in the diversion jar 1, owing in the waste water a lot of impurity and bubble are arranged, centrifugal pump 2 may quit work because being extracted into a lot of gases in the diversion process, at this moment, vacuumizes by 3 pairs of diversion jars 1 of diaphragm pump and centrifugal pump 2, thereby make to reach default vacuum in centrifugal pump 2 and the diversion jar 1, centrifugal pump 2 can work on.When the waste water in the centrifugal pump 2 extraction diversion jars 1, owing to water flows, so if introduce air in the centrifugal pump 2, diaphragm pump 3 can't directly extract the air in the centrifugal pump 2.And a diversion jar 1 is set between centrifugal pump 2 and underground wastewater disposal basin, this diversion jar 1 can play the effect of a surge tank, waste water in diversion jar 1 is static, so diaphragm pump 3 just can be realized also having extracted the air in the centrifugal pump 2 simultaneously by extracting the air in the diversion jar 1.If the water level in the diversion jar 1 is higher than default liquid level in the diversion jar 1, and has certain vacuum in the diversion jar 1, when the waste water in the use centrifugal pump 1 extraction diversion jar 1, just can guide to the water in the underground wastewater disposal basin in the diversion jar 1 by aqueduct 14 simultaneously, thus the whole continuous pump process of realization centrifugal pump 2.
Preferably, this priming device also comprises protected location, and described protected location is used for described centrifugal pump 2 and described diaphragm pump 3 are protected.If centrifugal pump 2 sucks air in pump process; can cause great damage to centrifugal pump 2; so carry out in the pump process at centrifugal pump 2; enter air if find in the centrifugal pump 2; protected location control centrifugal pump 2 quits work, and protected location control vacuum unit begins diversion jar 1 is vacuumized simultaneously.Vacuumize by 3 pairs of diversion jars 1 of diaphragm pump, reach certain vacuum in diversion jar 1, then protected location control diaphragm pump 3 quits work, and the centrifugal pump of protected location control simultaneously 2 continues to extract waste water.
Further preferably, in the present embodiment, described protected location comprises: water flow switch 6 and electric contact negative-pressure vacuum table 7.Wherein, described water flow switch 6 is used for controlling the keying of described centrifugal pump 2 and described diaphragm pump 3 according to the streamflow regime in the described centrifugal pump 2; Described electric contact negative-pressure vacuum table 7 is used for controlling the keying of described centrifugal pump 2 and described diaphragm pump 3 according to the vacuum in the described diversion jar 1.In the present embodiment, the output of centrifugal pump 2 is connected with discharge pipe line, when the waste water in the following in working order extraction diversion of centrifugal pump 2 jar 1, water flow switch 6 detects the streamflow regime in the discharge pipe line that the output of centrifugal pump 2 connects always, when in detecting discharge pipe line, not having water, then water flow switch 6 quits work by the contact switch control centrifugal pump 2 of himself, and water flow switch 6 begins diversion jar 1 is vacuumized work by the contact switch triggering diaphragm pump 3 of himself simultaneously.Diaphragm pump 3 can not only extract the air in the diversion jar 1, and can also extract the air in the centrifugal pump 2.When the vacuum in electric contact negative-pressure vacuum table 7 detects the diversion jar 1 that diaphragm pump 3 extracts reaches default vacuum, then electric contact negative-pressure vacuum table 7 quits work by the contact switch control diaphragm pump 3 of himself, and electric contact negative-pressure vacuum table 7 is started working by the contact switch triggering centrifugal pump 2 of himself simultaneously.And so forth, reach the purpose of automatic control.
Preferably, the output of described centrifugal pump 2 is connected with discharge pipe line, described discharge pipe line is provided with outfall 13 at the output away from described centrifugal pump 2, discharge pipe line between described centrifugal pump 2 and the described outfall 13 is provided with flap valve 8, is back to again in the described centrifugal pump 2 with the waste water that prevents outfall.Normally diversion jar 1 is placed in the position that is lower than ground in the printed substrate production, the waste water that uses centrifugal pump 2 to extract in the diversion jar 1 all is that waste water is extracted into eminence usually, so on the gutter between centrifugal pump 2 and the outfall 13, flap valve 8 is set, can prevents that the centrifugal pump 2 that the waste water of eminence when centrifugal pump 2 quits work flows to lower from damaging centrifugal pumps 2.When centrifugal pump 2 carried out work extraction waste water, waste water was discharged from the output of centrifugal pump 2, the motion that under action of centrifugal force, hoists, and the pressure of current can be washed flap valve 8 open, makes waste water finally flow to outfall 13.When centrifugal pump 2 quit work, flap valve 8 can block the waste water of eminence, in case backflow, thereby protected centrifugal pump 2 effectively.When diaphragm pump 3 vacuumized, diaphragm pump 3 not only can extract the air in the diversion jar 1, the air in the centrifugal pump 2, but also can extract the output of centrifugal pump 2 and the air in the discharge pipe line between the flap valve 8.
Wherein, the output of described diaphragm pump 3 is connected with described outfall 13, and described junction is arranged on the discharge pipe line between described flap valve 8 and the described outfall 13.Diaphragm pump 3 is by the action of bleeding of its input, carry out exhaust by its output, because the output of diaphragm pump 3 is received on the discharge pipe line between flap valve 8 and the outfall 13, so diaphragm pump 3 can be discharged the priming device of this waste water by discharge pipe line by its input air of extraction in the diversion jar 1.
The top of diversion jar 1 also is provided with extract opening, be connected by first pipeline between the extract opening of the input of described diaphragm pump 3 and described diversion jar 1, described first pipeline is provided with controlled valve 12, and described controlled valve 12 is used to control the break-make of described first pipeline.When diaphragm pump 3 breaks down, can be by turn-offing this controlled valve 12 to disconnect being connected between diaphragm pump 3 and the diversion jar 1, prevent that waste water in the diversion jar 1 is drawn in the diaphragm pump 3 and damage diaphragm pump 3.
Bottom at diversion jar 1 is provided with delivery port, be connected by described second pipeline between the delivery port of the input of described centrifugal pump 2 and described diversion jar 1, also be provided with filter element on described second pipeline, described filter element is used for the waste water that flows in the centrifugal pump 2 in described diversion jar 1 is filtered.In the present embodiment, filter element specifically adopts strainer 4, and strainer is used for filtering the waste water of diversion jar 1.Because contain a lot of impurity in the waste water in the diversion jar 1, waste water flows out from described delivery port, through entering centrifugal pump 2 again after strainer 4 filtrations, the impurity that arrive the waste water of centrifugal pump 2 this moment significantly reduces, thereby has protected centrifugal pump 2.
Wherein, be provided with also on the discharge pipe line between the output of described centrifugal pump 2 and the described flap valve 8 that rubber is soft to connect 5.When centrifugal pump 2 work, the priming device vibration of whole waste water is strong, and the pressure that makes whole discharge pipe line be subjected to increases, and rubber is soft to be connect 5 and can reduce vibration, reduction pressure by being provided with, and protects centrifugal pump 2 and discharge pipe line effectively.
Preferably, described priming device also comprises alarm unit, described alarm unit comprises liquid level sensor 9 and alarm, described liquid level sensor 9 is arranged in the diversion jar 1, be used to monitor the liquid level of waste water in the described diversion jar 1, and control described alarm according to the liquid level of waste water in the described diversion jar 1 and whether sound the alarm.In the present embodiment, described alarm adopts audible-visual annunciator.Liquid level sensor 9 is controlled audible-visual annunciator by the contact switch of himself.When the water level in liquid level sensor 9 detects diversion jar 1 is lower than liquid level default in it, lack of water in the expression diversion this moment jar 1, liquid level sensor 9 sends chimes of doom by the contact switch triggering audible-visual annunciator of self.Operating personnel close centrifugal pump 2 according to the alarm of audible-visual annunciator, open described water injection valve 11 according to actual conditions, and the water filling port by diversion jar 1 adds water in diversion jar 1.
Preferably, described priming device also comprises the content gauge 10 that is used to indicate waste water liquid level in the diversion jar 1, described content gauge 10 is arranged in the diversion jar 1, and described diversion jar 1 is provided with observation port over against the position of described content gauge 10, and described observation port adopts transparent material to make.In the present embodiment, content gauge 10 is installed in the upper half area of diversion jar 1, and correspondingly, described observation port is arranged on the top of diversion jar 1, the staff can observe the liquid level scale of content gauge 10 by described observation port, thereby can learn the liquid level of the waste water in the diversion jar 1.
The priming device of the waste water that present embodiment provides can effectively be realized the diversion for waste water; not only comprise the centrifugal pump 2 that carries out diversion work in the described priming device; also comprise the vacuum unit that diversion jar 1 is vacuumized; vacuum unit is by vacuumizing diversion jar 1; can be so that because the too much gas of suction or foam and out-of-work centrifugal pump 2 works on; thereby realized protection for centrifugal pump 2; prolong the application life of centrifugal pump 2, and finally improved the stability of whole priming device work.
Be understandable that above embodiment only is the illustrative embodiments that adopts for principle of the present utility model is described, yet the utility model is not limited thereto.For those skilled in the art, under the situation that does not break away from spirit of the present utility model and essence, can make various modification and improvement, these modification and improvement also are considered as protection domain of the present utility model.
Claims (10)
1. the priming device of a waste water, comprise diversion jar, centrifugal pump, wherein, described diversion jar is connected with underground wastewater disposal basin, described centrifugal pump is used for extracting by described diversion jar the waste water of described underground wastewater disposal basin, it is characterized in that, described priming device also comprises vacuum unit, described vacuum unit links to each other with described diversion jar, and described vacuum unit is used to extract the air in the described diversion jar.
2. the priming device of waste water according to claim 1 is characterized in that, described vacuum unit adopts diaphragm pump.
3. the priming device of waste water according to claim 2 is characterized in that, described diaphragm pump is connected with described centrifugal pump, and described diaphragm pump is used to extract the air in the described centrifugal pump.
4. the priming device of waste water according to claim 2, it is characterized in that, the input of described diaphragm pump is connected by first pipeline with described diversion jar, and described first pipeline is provided with controlled valve, and described controlled valve is used to control the break-make of described first pipeline.
5. the priming device of waste water according to claim 1 is characterized in that, this priming device also comprises protected location, and described protected location is used for described centrifugal pump is protected.
6. according to the priming device of claim 5 described waste water, it is characterized in that described protected location comprises water flow switch, described water flow switch is used for controlling the keying of described centrifugal pump according to the streamflow regime in the described centrifugal pump.
7. the priming device of waste water according to claim 5 is characterized in that, described protected location comprises electric contact negative-pressure vacuum table, and described electric contact negative-pressure vacuum table is used for controlling the keying of described vacuum unit according to the vacuum in the described diversion jar.
8. according to the priming device of each described waste water of claim 1 ~ 7, it is characterized in that, described centrifugal delivery side of pump is connected with discharge pipe line, described discharge pipe line is provided with outfall at the output away from described centrifugal pump, discharge pipe line between the outfall of described centrifugal pump and described discharge pipe line is provided with flap valve, is back to again in the described centrifugal pump with the waste water that prevents outfall.
9. according to the priming device of each described waste water of claim 1 ~ 7, it is characterized in that, the input of described centrifugal pump is connected by second pipeline with described diversion jar, described second pipeline is provided with filter element, and described filter element is used for the waste water that flows in the described centrifugal pump in described diversion jar is filtered.
10. according to the priming device of each described waste water of claim 1 ~ 7, it is characterized in that, described priming device also comprises alarm unit, described alarm unit comprises liquid level sensor and alarm, described liquid level sensor is arranged in the diversion jar, be used to monitor the liquid level of waste water in the described diversion jar, and control described alarm according to the liquid level of waste water in the described diversion jar and whether sound the alarm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320063921 CN203096893U (en) | 2013-02-04 | 2013-02-04 | Priming device for waste water |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320063921 CN203096893U (en) | 2013-02-04 | 2013-02-04 | Priming device for waste water |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203096893U true CN203096893U (en) | 2013-07-31 |
Family
ID=48848307
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320063921 Expired - Lifetime CN203096893U (en) | 2013-02-04 | 2013-02-04 | Priming device for waste water |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203096893U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105618342A (en) * | 2014-10-30 | 2016-06-01 | 大连小松雄连机械制造有限公司 | Water rotation coating chamber |
| CN107227790A (en) * | 2017-07-25 | 2017-10-03 | 高凤强 | A kind of discharge structure for underground garage |
-
2013
- 2013-02-04 CN CN 201320063921 patent/CN203096893U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105618342A (en) * | 2014-10-30 | 2016-06-01 | 大连小松雄连机械制造有限公司 | Water rotation coating chamber |
| CN105618342B (en) * | 2014-10-30 | 2018-02-27 | 大连小松雄连机械制造有限公司 | Water revolves paint booth |
| CN107227790A (en) * | 2017-07-25 | 2017-10-03 | 高凤强 | A kind of discharge structure for underground garage |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203096893U (en) | Priming device for waste water | |
| CN210966354U (en) | In-situ extraction well | |
| CN207561178U (en) | A kind of novel fish tank removes oil film, oxygen-enrichment system | |
| CN201267757Y (en) | Timing and automatic flushing device for filter membrane | |
| CN201376918Y (en) | Large-area hydrolytic acidification tank sludge removing device | |
| CN203654440U (en) | Sewage collection system | |
| CN201458785U (en) | Purified acid wastewater degasser | |
| CN203008036U (en) | Energy bring-in water suction device | |
| CN214766193U (en) | Prevent blockking up flotation machine spindle | |
| CN214218281U (en) | Hydrogen discharge system of drinking water disinfection device for ship | |
| CN2432361Y (en) | Combined water pump | |
| CN204848407U (en) | Pumping device | |
| CN205533296U (en) | Take liquid storage tank of unsteady pump of liquid level response warning | |
| CN204628003U (en) | A kind of pump vacuum water diversion apparatus | |
| CN202590447U (en) | Water-saving valveless filter | |
| CN201661480U (en) | Automatic water diversion device of sewage pump | |
| CN213388068U (en) | Laboratory ultrapure water machine with water leakage protection | |
| CN202209280U (en) | Water pump with self-suction unit | |
| CN202500759U (en) | Self-priming vacuum priming device used for water pump | |
| CN103031874A (en) | Energy-utilizing water suction system | |
| CN204848331U (en) | Novel air supporting is subsided device | |
| JP2005224678A (en) | Membrane separator and operation control method | |
| CN204282441U (en) | System for extracting clear water by utilizing gravitational potential energy of domestic wastewater in high-rise building | |
| CN203770751U (en) | Liquid suction bottom valve used for pneumatic diaphragm pump | |
| CN204083814U (en) | Chemical product supply system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220629 Address after: 3007, Hengqin international financial center building, No. 58, Huajin street, Hengqin new area, Zhuhai, Guangdong 519031 Patentee after: New founder holdings development Co.,Ltd. Patentee after: ZHUHAI FOUNDER TECH. MULTILAYER PCB Co.,Ltd. Address before: 100871, Beijing, Haidian District, Cheng Fu Road, No. 298, Zhongguancun Fangzheng building, 5 floor Patentee before: PEKING UNIVERSITY FOUNDER GROUP Co.,Ltd. Patentee before: ZHUHAI FOUNDER TECH. MULTILAYER PCB Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130731 |