CN108980023A - A kind of dredge pump idle running resistance protection device - Google Patents
A kind of dredge pump idle running resistance protection device Download PDFInfo
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- CN108980023A CN108980023A CN201811133660.1A CN201811133660A CN108980023A CN 108980023 A CN108980023 A CN 108980023A CN 201811133660 A CN201811133660 A CN 201811133660A CN 108980023 A CN108980023 A CN 108980023A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 87
- 239000007788 liquid Substances 0.000 claims abstract description 83
- 239000010865 sewage Substances 0.000 claims abstract description 80
- 238000003860 storage Methods 0.000 claims abstract description 56
- 230000002265 prevention Effects 0.000 claims abstract description 12
- 238000007789 sealing Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000013022 venting Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/10—Other safety measures
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B23/00—Pumping installations or systems
- F04B23/02—Pumping installations or systems having reservoirs
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/06—Control using electricity
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Positive-Displacement Pumps (AREA)
Abstract
本发明公开了一种排污泵防空转保护装置，其包括污水收集池、排污泵和密闭的防缺水储液罐，所述排污泵通过第一管路与防缺水储液罐的底部相连通，所述防缺水储液罐通过第二管路与污水收集池相连通，所述第二管路的底部设置有底阀，所述防缺水储液罐上接入补水管和排气管，且所述防缺水储液罐内设置有与排污泵通信连接的第一液位传感器，所述污水收集池内设置有与排污泵通信连接的第二液位传感器。上述排污泵防空转保护装置不仅结构简单，成本低；而且能够保证在污水收集池内的底阀堵塞、底阀漏水或液位计失灵三种故障情况下，排污泵不会空转。
The invention discloses an anti-idling protection device for a sewage pump, which comprises a sewage collection pool, a sewage pump and a closed liquid storage tank for preventing water shortage, and the sewage pump is connected with the bottom of the liquid storage tank for preventing water shortage through a first pipeline The water shortage prevention liquid storage tank is connected with the sewage collection tank through the second pipeline, the bottom of the second pipeline is provided with a bottom valve, and the water shortage prevention liquid storage tank is connected with a water supply pipe and a drain Air pipe, and the first liquid level sensor communicated with the sewage pump is provided in the anti-water shortage liquid storage tank, and the second liquid level sensor communicated with the sewage pump is provided in the sewage collection tank. The anti-idling protection device of the sewage pump is not only simple in structure and low in cost; it can also ensure that the sewage pump will not run idling under the three failure conditions of the bottom valve in the sewage collection tank being blocked, the bottom valve leaking or the liquid level gauge failing.
Description
技术领域technical field
本发明属于污水处理技术，尤其是涉及一种用于污水处理系统的排污泵防空转保护装置。The invention belongs to sewage treatment technology, in particular to a sewage pump anti-idling protection device used in a sewage treatment system.
背景技术Background technique
污水处理过程中，一般需将地下污水池内的污水利用排污泵抽至处理装置。为了防止泵运转时发生缺水空转，通常在泵的吸水口底部安装止回底阀，泵启动前，在止回底阀至泵进口的一段吸水管路中充满水，这样可有效防止泵首次启动时无水空吸。同时，在污水池内安装液位计保护，防止水池内水被抽空后，泵继续运行。但是由于污水池内水质较差，极易发生止回底阀堵塞或者漏水以及液位计失灵现象，此时将极易发生泵的空转现象，时间一长则会导致泵的损坏。During the sewage treatment process, the sewage in the underground sewage tank generally needs to be pumped to the treatment device by a sewage pump. In order to prevent water shortage and idling when the pump is running, a bottom check valve is usually installed at the bottom of the suction port of the pump. No water suction at startup. At the same time, a liquid level gauge is installed in the sewage pool for protection to prevent the pump from continuing to run after the water in the pool is evacuated. However, due to the poor water quality in the sewage pool, it is very easy to block the bottom check valve or leak water and the failure of the liquid level gauge. At this time, the idling phenomenon of the pump will easily occur, and the pump will be damaged after a long time.
发明内容Contents of the invention
本发明的目的在于提供一种排污泵防空转保护装置，以解决现有技术污水处理时底阀堵塞或者漏水以及液位计失灵易造成污水泵损坏的问题。The purpose of the present invention is to provide an anti-idling protection device for sewage pumps to solve the problems in the prior art that the bottom valve is clogged or leaking and the liquid level gauge fails to easily cause damage to the sewage pump during sewage treatment.
为达此目的，本发明采用以下技术方案：For reaching this purpose, the present invention adopts following technical scheme:
一种排污泵防空转保护装置，其包括污水收集池、排污泵和密闭的防缺水储液罐，所述排污泵通过第一管路与防缺水储液罐的底部相连通，所述防缺水储液罐通过第二管路与污水收集池相连通，所述第二管路的底部设置有底阀，所述防缺水储液罐上接入补水管和排气管，且所述防缺水储液罐内设置有与排污泵通信连接的第一液位传感器，所述污水收集池内设置有与排污泵通信连接的第二液位传感器。An anti-idling protection device for a sewage pump, which includes a sewage collection tank, a sewage pump and a closed anti-water storage tank, the sewage pump communicates with the bottom of the anti-water storage tank through a first pipeline, and the The anti-water shortage liquid storage tank is connected with the sewage collection tank through the second pipeline, the bottom of the second pipeline is provided with a bottom valve, and the water shortage anti-liquid storage tank is connected with a water supply pipe and an exhaust pipe, and A first liquid level sensor that communicates with the sewage pump is provided in the anti-water shortage liquid storage tank, and a second liquid level sensor that is communicatively connected with the sewage pump is provided in the sewage collection tank.
特别地，所述防缺水储液罐内设置有过滤网板，所述过滤网板将整个储液罐分成过滤前部分和过滤后部分，所述第二管路接入防缺水储液罐的过滤前部分，所述第一管路接入防缺水储液罐的过滤后部分。In particular, the anti-water shortage liquid storage tank is provided with a filter screen, and the filter screen divides the entire liquid storage tank into a pre-filtered part and a post-filtered part, and the second pipeline is connected to the anti-water shortage liquid storage tank. The pre-filtered part of the tank, the first pipeline is connected to the post-filtered part of the anti-water shortage liquid storage tank.
特别地，所述防缺水储液罐的底部设置有排空管，所述排空管上设置有放空阀。In particular, an emptying pipe is provided at the bottom of the anti-water shortage liquid storage tank, and an emptying valve is arranged on the emptying pipe.
特别地，所述第二管路的一端接入防缺水储液罐的上部，另一端深入所述污水收集池的底部。In particular, one end of the second pipeline is connected to the upper part of the anti-water shortage liquid storage tank, and the other end goes deep into the bottom of the sewage collection tank.
特别地，所述补水管和排气管上分别安装有补水阀和排气阀。In particular, a water replenishment valve and an exhaust valve are respectively installed on the water replenishment pipe and the exhaust pipe.
特别地，所述防缺水储液罐包括PVC管，所述PVC管的底部通过PVC封板固定封死，其顶部安装有封闭法兰。In particular, the anti-water shortage liquid storage tank includes a PVC pipe, the bottom of the PVC pipe is fixed and sealed by a PVC sealing plate, and a sealing flange is installed on the top of the PVC pipe.
特别地，所述第一液位传感器和第二液位传感器还与报警器通信连接。In particular, the first liquid level sensor and the second liquid level sensor are also communicatively connected to an alarm.
本发明的有益效果为，与现有技术相比所述排污泵防空转保护装置不仅结构简单，成本低；而且能够保证在污水收集池内的底阀堵塞、底阀漏水或液位计失灵三种故障情况下，排污泵不会空转。The beneficial effect of the present invention is that, compared with the prior art, the anti-idling protection device of the sewage pump not only has a simple structure and low cost; In the event of a fault, the sewage pump will not run dry.
附图说明Description of drawings
图1是本发明具体实施方式提供的排污泵防空转保护装置的结构示意图。Fig. 1 is a schematic structural view of a sewage pump anti-idling protection device provided by a specific embodiment of the present invention.
具体实施方式Detailed ways
下面结合附图并通过具体实施方式来进一步说明本发明的技术方案。The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and through specific implementation methods.
请参阅图1所示，图1是本发明具体实施方式提供的排污泵防空转保护装置的结构示意图。Please refer to FIG. 1 , which is a schematic structural view of a sewage pump anti-idling protection device provided by a specific embodiment of the present invention.
本实施例中，一种排污泵防空转保护装置包括污水收集池1、排污泵2和密闭的防缺水储液罐3，防缺水储液罐3的罐体采用PVC管30制作，PVC管30的底部通过PVC封板31固定封死，其顶部安装有封闭法兰32，简单易制，成本低廉，当然也可采用市场上专用的储液罐或水箱。防缺水储液罐3内设置有过滤网板4，过滤网板4将整个储液罐分成过滤前部分33和过滤后部分34，防缺水储液罐3的顶部的封闭法兰32上接入补水管5和排气管6，补水管5和排气管6上分别安装有补水阀7和排气阀8，防缺水储液罐3的过滤前部分33的底部设置有排空管9，排空管9上设置有放空阀10，打开放空阀10定期对防缺水储液罐3进行彻底清理，清理时能够通过补水管5对防缺水储液罐3进行冲洗。In this embodiment, a sewage pump anti-idling protection device includes a sewage collection tank 1, a sewage pump 2, and a closed water shortage prevention liquid storage tank 3. The tank body of the water shortage prevention liquid storage tank 3 is made of PVC pipe 30, PVC The bottom of pipe 30 is fixedly sealed by PVC sealing plate 31, and sealing flange 32 is installed on its top, simple and easy to manufacture, with low cost, certainly also can adopt special liquid storage tank or water tank on the market. The anti-water shortage liquid storage tank 3 is provided with a filter screen 4, and the filter screen 4 divides the entire liquid storage tank into a pre-filtered part 33 and a post-filtered part 34. Connect the water supply pipe 5 and the exhaust pipe 6, the water supply pipe 5 and the exhaust pipe 6 are respectively equipped with a water supply valve 7 and an exhaust valve 8, and the bottom of the pre-filtered part 33 of the anti-water shortage liquid storage tank 3 is provided with an emptying valve. The pipe 9 and the emptying pipe 9 are provided with a venting valve 10, and the venting valve 10 is opened to thoroughly clean the anti-water shortage liquid storage tank 3 regularly, and the anti-water shortage liquid storage tank 3 can be flushed through the replenishment pipe 5 during cleaning.
排污泵2通过第一管路11与防缺水储液罐3的过滤后部分34相连通，且第一管路11接入过滤后部分34的底部，过滤前部分33的上部接入第二管路12，第二管路12的另一端安装底阀13且伸入污水收集池1的底部，第二管路12内将污水收集池1内的污水送入防缺水储液罐3时先通过过滤泵网板4过滤掉大颗粒物质，避免排污泵2吸入大颗粒物质。The sewage pump 2 communicates with the filtered part 34 of the anti-water shortage liquid storage tank 3 through the first pipeline 11, and the first pipeline 11 is connected to the bottom of the filtered part 34, and the upper part of the pre-filtered part 33 is connected to the second Pipeline 12, the other end of the second pipeline 12 is equipped with a bottom valve 13 and extends into the bottom of the sewage collection tank 1, when the second pipeline 12 sends the sewage in the sewage collection tank 1 into the water shortage prevention liquid storage tank 3 First filter out the large particles through the filter pump net plate 4, so as to prevent the sewage pump 2 from inhaling the large particles.
防缺水储液罐3内设置有与第一液位传感器14，污水收集池1内设置有第二液位传感器15，第一液位传感器14和第二液位传感器15均与排污泵2通信连接，且第一液位传感器14和第二液位传感器15均通信连接有报警器。The anti-water shortage liquid storage tank 3 is provided with a first liquid level sensor 14, and the sewage collection tank 1 is provided with a second liquid level sensor 15, and both the first liquid level sensor 14 and the second liquid level sensor 15 are connected with the sewage pump 2 communication connection, and both the first liquid level sensor 14 and the second liquid level sensor 15 are connected with an alarm for communication.
首次运行，打开补水阀7、排气阀8，通过补水管5和补水阀7向防缺水储液罐3内注水，至排气阀8出口有水溢出，表明防缺水储液罐3和防缺水储液罐3至底阀13段管路内均已充满水。停止补水，关闭补水阀7、排气阀8。打开排污泵2，此后可保证正常运行。For the first operation, open the replenishment valve 7 and the exhaust valve 8, fill water into the anti-water shortage liquid storage tank 3 through the water replenishment pipe 5 and the water replenishment valve 7, until water overflows from the outlet of the exhaust valve 8, indicating that the anti-water shortage liquid storage tank 3 And anti-water shortage liquid storage tank 3 is all filled with water in the 13 section pipelines of bottom valve. Stop replenishing water, close replenishing water valve 7, exhaust valve 8. Turn on the sewage pump 2, and normal operation can be guaranteed thereafter.
当污水收集池1内的底阀13漏水时：从防缺水储液罐3至污水收集池1内的底阀13的一段管路内的水漏光；此时排污泵2仍处于运行状态，则排污泵2开始抽吸防缺水储液罐3内的水，导致防缺水储液罐3内液位下降，防缺水储液罐3内呈负压状态，污水收集池1内的水仍会通过虹吸作用被抽吸至防缺水储液罐3，并进一步被排污泵2抽走。此种情况可保证排污泵2始终正常运行，不会停泵，不会空转。When the bottom valve 13 in the sewage collection tank 1 leaks water: the water in a section of the pipeline from the anti-water shortage liquid storage tank 3 to the bottom valve 13 in the sewage collection tank 1 leaks light; at this time, the sewage pump 2 is still in operation. Then the sewage pump 2 starts to suck the water in the anti-water shortage liquid storage tank 3, causing the liquid level in the anti-water shortage liquid storage tank 3 to drop, the anti-water shortage liquid storage tank 3 is in a negative pressure state, and the water in the sewage collection tank 1 Water still can be sucked to anti-water shortage liquid storage tank 3 by siphon action, and is further sucked away by blowdown pump 2. This situation can ensure that the sewage pump 2 runs normally all the time without stopping the pump or idling.
当污水收集池1内的底阀13堵塞时：此时排污泵2仍处于运行状态，则排污泵2开始抽吸防缺水储液罐3内的水，导致防缺水储液罐3内液位下降，由于底阀13堵塞，即使防缺水储液罐3内负压，从防缺水储液罐3至污水收集池1内的底阀13的一段管路内的水通过负压抽光；而污水收集池1内的水因底阀13堵塞不能通过虹吸作用被抽吸上来。防缺水储液罐3内液位持续下降，至第一液位传感器14显示低液位，报警，第一液位传感器14与排污泵2联动，使排污泵2停止运行。此时操作人员可进行相关检修。检修完成后，按首次运行操作，使排污泵2再次运行。When the bottom valve 13 in the sewage collection tank 1 is blocked: at this time, the sewage pump 2 is still in operation, and the sewage pump 2 starts to suck the water in the water shortage prevention liquid storage tank 3, resulting in the water shortage in the water shortage prevention liquid storage tank 3 The liquid level drops, because the bottom valve 13 is blocked, even if there is negative pressure in the water shortage prevention liquid storage tank 3, the water in a section of the pipeline from the water shortage prevention liquid storage tank 3 to the bottom valve 13 in the sewage collection tank 1 passes through the negative pressure and the water in the sewage collection tank 1 cannot be sucked up by the siphon effect because of the bottom valve 13 clogging. The liquid level in the anti-water shortage liquid storage tank 3 continues to drop until the first liquid level sensor 14 shows a low liquid level, and an alarm is issued. The first liquid level sensor 14 is linked with the sewage pump 2 to stop the sewage pump 2 from running. At this time, the operator can carry out related maintenance. After the overhaul is completed, operate according to the first operation to make the sewage pump 2 run again.
当第二液位传感器15失灵时：低液位时排污泵2会继续运行，导致污水收集池1内水被抽光，进而开始抽吸防缺水储液罐3内的水，并导致防缺水储液罐3内液位下降，此时第一液位传感器14相当于第二重保护，并开始工作，检测防缺水储液罐3内呈低液位时，自动停止排污泵2运行，并报警，提醒操作人员检查底阀13或第二液位传感器15是否存在损坏或失灵现象，及时进行相关检修。检修完成后，按首次运行操作，使排污泵2再次运行。When the second liquid level sensor 15 fails: when the liquid level is low, the sewage pump 2 will continue to operate, causing the water in the sewage collection tank 1 to be pumped out, and then start to suck the water in the anti-water shortage liquid storage tank 3, and cause the anti-water shortage The liquid level in the water shortage storage tank 3 drops. At this time, the first liquid level sensor 14 is equivalent to the second protection and starts to work. When the liquid level in the water shortage prevention liquid storage tank 3 is detected to be low, the sewage pump 2 is automatically stopped. Run, and give an alarm to remind the operator to check whether the bottom valve 13 or the second liquid level sensor 15 is damaged or malfunctioning, and carry out relevant maintenance in time. After the overhaul is completed, operate according to the first operation to make the sewage pump 2 run again.
以上实施例只是阐述了本发明的基本原理和特性，本发明不受上述事例限制，在不脱离本发明精神和范围的前提下，本发明还有各种变化和改变，这些变化和改变都落入要求保护的本发明范围内。本发明要求保护范围由所附的权利要求书及其等效物界定。The above embodiments have only set forth the basic principles and characteristics of the present invention, the present invention is not limited by the above-mentioned examples, and on the premise of not departing from the spirit and scope of the present invention, the present invention also has various changes and changes, and these changes and changes all fall within the scope of the claimed invention. The protection scope of the present invention is defined by the appended claims and their equivalents.
Claims (7)
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111594427A (en) * | 2020-07-09 | 2020-08-28 | 宁波东弘环保科技有限公司 | Water pump operation protection device |
| CN111622961A (en) * | 2020-05-29 | 2020-09-04 | 安徽工程大学 | Automatic control system for preventing idling of centrifugal pump |
| CN114109813A (en) * | 2021-12-09 | 2022-03-01 | 南京中船绿洲环保有限公司 | Dry running prevention device for pump |
| CN116753173A (en) * | 2023-06-12 | 2023-09-15 | 重庆钢铁股份有限公司 | Protection devices for sewage pump discharge, anti-siphon methods and boiler sewage system |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202348691U (en) * | 2011-11-01 | 2012-07-25 | 湖南吉利汽车部件有限公司 | Vacuum suck-back type drainage system |
| CN202754325U (en) * | 2012-09-26 | 2013-02-27 | 北京金兴龙宇帐篷有限公司 | Water storage pot |
| CN203114698U (en) * | 2013-03-04 | 2013-08-07 | 绿友机械集团股份有限公司 | Water supplementing device for centrifugal pump station unit |
| CN103511317A (en) * | 2013-09-09 | 2014-01-15 | 潍坊泉鑫化工有限公司 | Anti-self-sucking pump evacuator |
| CN204476775U (en) * | 2015-02-10 | 2015-07-15 | 青岛运兴机械有限公司 | A kind of self prime pump |
| CN204530971U (en) * | 2015-04-07 | 2015-08-05 | 合肥宏润环保科技有限公司 | A kind of Novel underground sanitary wastewater lifting integrated equipment |
| CN205663020U (en) * | 2016-05-24 | 2016-10-26 | 山东东方宏业化工有限公司 | Prevent blockking up sewage draw -out device |
| CN205908486U (en) * | 2016-07-26 | 2017-01-25 | 丰益油脂科技（天津）有限公司 | A protection device for avoiding centrifugal pump damages |
| CN206015807U (en) * | 2016-08-26 | 2017-03-15 | 福州仁量生物制品有限公司 | A kind of sewage negative pressure tapping equipment |
| CN206289102U (en) * | 2016-12-28 | 2017-06-30 | 天津滨港电镀企业管理有限公司 | Gravity flow sewage collection system can be reviewed |
| CN207122429U (en) * | 2017-08-28 | 2018-03-20 | 温州捷高科技有限公司 | A kind of novel energy-conserving supply-water pump |
| CN208982259U (en) * | 2018-09-27 | 2019-06-14 | 无锡星亿智能环保装备股份有限公司 | A kind of dredge pump idle running resistance protection device |
-
2018
- 2018-09-27 CN CN201811133660.1A patent/CN108980023A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202348691U (en) * | 2011-11-01 | 2012-07-25 | 湖南吉利汽车部件有限公司 | Vacuum suck-back type drainage system |
| CN202754325U (en) * | 2012-09-26 | 2013-02-27 | 北京金兴龙宇帐篷有限公司 | Water storage pot |
| CN203114698U (en) * | 2013-03-04 | 2013-08-07 | 绿友机械集团股份有限公司 | Water supplementing device for centrifugal pump station unit |
| CN103511317A (en) * | 2013-09-09 | 2014-01-15 | 潍坊泉鑫化工有限公司 | Anti-self-sucking pump evacuator |
| CN204476775U (en) * | 2015-02-10 | 2015-07-15 | 青岛运兴机械有限公司 | A kind of self prime pump |
| CN204530971U (en) * | 2015-04-07 | 2015-08-05 | 合肥宏润环保科技有限公司 | A kind of Novel underground sanitary wastewater lifting integrated equipment |
| CN205663020U (en) * | 2016-05-24 | 2016-10-26 | 山东东方宏业化工有限公司 | Prevent blockking up sewage draw -out device |
| CN205908486U (en) * | 2016-07-26 | 2017-01-25 | 丰益油脂科技（天津）有限公司 | A protection device for avoiding centrifugal pump damages |
| CN206015807U (en) * | 2016-08-26 | 2017-03-15 | 福州仁量生物制品有限公司 | A kind of sewage negative pressure tapping equipment |
| CN206289102U (en) * | 2016-12-28 | 2017-06-30 | 天津滨港电镀企业管理有限公司 | Gravity flow sewage collection system can be reviewed |
| CN207122429U (en) * | 2017-08-28 | 2018-03-20 | 温州捷高科技有限公司 | A kind of novel energy-conserving supply-water pump |
| CN208982259U (en) * | 2018-09-27 | 2019-06-14 | 无锡星亿智能环保装备股份有限公司 | A kind of dredge pump idle running resistance protection device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111622961A (en) * | 2020-05-29 | 2020-09-04 | 安徽工程大学 | Automatic control system for preventing idling of centrifugal pump |
| CN111594427A (en) * | 2020-07-09 | 2020-08-28 | 宁波东弘环保科技有限公司 | Water pump operation protection device |
| CN114109813A (en) * | 2021-12-09 | 2022-03-01 | 南京中船绿洲环保有限公司 | Dry running prevention device for pump |
| CN116753173A (en) * | 2023-06-12 | 2023-09-15 | 重庆钢铁股份有限公司 | Protection devices for sewage pump discharge, anti-siphon methods and boiler sewage system |
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