CN1300419C - Domestic waste water secondary utilization device - Google Patents
Domestic waste water secondary utilization device Download PDFInfo
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- CN1300419C CN1300419C CNB2005100202095A CN200510020209A CN1300419C CN 1300419 C CN1300419 C CN 1300419C CN B2005100202095 A CNB2005100202095 A CN B2005100202095A CN 200510020209 A CN200510020209 A CN 200510020209A CN 1300419 C CN1300419 C CN 1300419C
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- 239000010840 domestic wastewater Substances 0.000 title claims abstract description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 242
- 238000011010 flushing procedure Methods 0.000 claims abstract description 26
- 238000011084 recovery Methods 0.000 claims abstract description 21
- 239000010865 sewage Substances 0.000 claims abstract description 6
- 239000007788 liquid Substances 0.000 claims description 10
- 238000005406 washing Methods 0.000 claims description 7
- 238000011144 upstream manufacturing Methods 0.000 claims description 6
- 239000008399 tap water Substances 0.000 claims description 5
- 235000020679 tap water Nutrition 0.000 claims description 5
- 235000013311 vegetables Nutrition 0.000 claims description 5
- 239000002351 wastewater Substances 0.000 abstract description 15
- 238000003287 bathing Methods 0.000 abstract description 3
- 230000007423 decrease Effects 0.000 abstract 1
- 238000004064 recycling Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 2
- 230000007613 environmental effect Effects 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
- 230000005611 electricity Effects 0.000 description 1
- 239000013505 freshwater Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000008400 supply water Substances 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
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- Sanitary Device For Flush Toilet (AREA)
Abstract
本生活废水二次利用装置，与洗浴等出水管连接的集水管通入集水箱。水泵出水管接入蓄水箱。回收水管连接水泵与集水箱，回收水管与集水箱之间装有滤网。回收水管上装有止回阀。溢水管上端接入于蓄水箱最高水位处，下端连接便池冲洗阀下游的冲洗管。集水箱底部通过清淤阀与污水下水管相连通。供水管连接便池冲洗管。集水箱内传感器与水泵开关相连。集水箱废水达一定量时传感器信号接通水泵将水抽入蓄水箱，集水箱内的水位降低时，传感器信号让水泵停机。蓄水箱内的废水可用于冲厕或冲洗拖把。当蓄水箱内的废水达到最高水位时自动从溢水管排入便池。本装置回收生活废水再次利用，节水近80%；装置结构紧凑，成本低廉，占空间小，自动运行，使用简单。
In the secondary utilization device of domestic waste water, the water collecting pipe connected with the water outlet pipes such as bathing leads into the water collecting tank. The outlet pipe of the water pump is connected to the water storage tank. The recovery water pipe is connected to the water pump and the water collection tank, and a filter screen is arranged between the recovery water pipe and the water collection tank. A check valve is installed on the recovery water pipe. The upper end of the overflow pipe is connected to the highest water level of the water storage tank, and the lower end is connected to the flushing pipe downstream of the urinal flushing valve. The bottom of the water collection tank is connected with the sewage downpipe through the dredging valve. The water supply hose is connected to the toilet flush hose. The sensor in the water collecting tank is connected with the water pump switch. When the waste water in the water collection tank reaches a certain amount, the sensor signal connects the water pump to pump water into the water storage tank, and when the water level in the water collection tank decreases, the sensor signal allows the water pump to stop. The waste water in the water storage tank can be used for flushing the toilet or flushing the mop. When the waste water in the storage tank reaches the highest water level, it is automatically discharged into the urinal from the overflow pipe. The device recycles domestic wastewater and reuses it, saving nearly 80% of water; the device has a compact structure, low cost, small space occupation, automatic operation, and simple use.
Description
(一)技术领域(1) Technical field
本发明涉及废水回收利用装置，具体为一种生活废水二次利用装置。The invention relates to a waste water recovery and utilization device, in particular to a domestic waste water secondary utilization device.
(二)技术背景(2) Technical background
环保意识的增强和淡水资源的短缺使节水成为全世界重点研究的问题。特别是我国谈水资源更为紧张，不少大城市在用水高峰的夏季只能定时定量供水，水费也一涨再涨。节水问题更是迫在眉睫。目前工业用的大型中水回收利用装置较多，但适用于家庭或小单位的生活废水回收利用装置市场上罕见。家庭中洗衣洗菜洗浴之后的废水完全可以用于冲厕或冲洗拖把等。也有的家庭不得不用人工存留洗衣水用于冲厕等，显然费力费时，无法普及。The enhancement of environmental awareness and the shortage of fresh water resources have made water conservation a key research issue all over the world. Especially in our country, water resources are more tense. Many big cities can only supply water regularly and quantitatively during the peak summer of water use, and the water fee has also risen again and again. The issue of water conservation is even more urgent. At present, there are many large-scale reclaimed water recycling devices for industrial use, but domestic wastewater recycling devices suitable for households or small units are rare in the market. The waste water after washing vegetables and bathing in the family can be used for flushing the toilet or flushing the mop. Some families also have to manually retain the laundry water for flushing the toilet, etc., which is obviously laborious and time-consuming, and cannot be popularized.
现已有一些有关生活废水回收利用装置的专利申请，如“生活废水回收冲厕装置”、“生活废水回收利用装置”等，但现有的设计有的结构复杂成本高，有的装置占地过大，有的不易操作，均难以在家庭或小单位中广泛安装使用。There are already some patent applications related to domestic wastewater recycling devices, such as "domestic wastewater recycling toilet flushing device", "domestic wastewater recycling device", etc., but the existing designs have complex structures and high costs, and some devices occupy an area of Too large, some are not easy to operate, and it is difficult to widely install and use in families or small units.
(三)发明内容(3) Contents of the invention
本发明的目的是设计一种生活废水二次利用装置，装置简单紧凑，且能自动运行。The object of the present invention is to design a device for secondary utilization of domestic wastewater, which is simple and compact, and can operate automatically.
本发明设计的生活废水二次利用装置，包括集水管、蓄水箱、水泵、回收水管、供水管和电气控制装置，还包括集水箱、压力传感器、溢水管，集水管位于地面或地面以下，与洗衣机的出水管连接、或还连接浴缸的出水管、洗面盆的出水管、洗菜盆的出水管、地漏水管的一种或数种或全部，集水管通入集水箱。集水箱箱底低于集水管，集水箱内有压力传感器或液位传感器。蓄水箱高于便池水箱和/或冲洗槽出水龙头，水泵出水管接入蓄水箱。回收水管连接水泵与集水箱，回收水管与集水箱之间装有滤网。回收水管上装有止回阀。溢水管上端连接蓄水箱，下端连接便池冲洗阀下游的冲洗管，其上端与蓄水箱适当的最高水位相平。集水箱底部通过清淤阀与污水下水管相连通。蓄水箱底部接出的供水管连接便池冲洗阀上游的冲洗管，也可同时连接冲洗槽出水龙头上游的水管。便池和冲洗槽的下水管直接与公共排污管道连接。集水箱内的压力传感器的电信号线与电气控制装置内的控制水泵启闭的电磁开关相连接。The domestic wastewater secondary utilization device designed by the present invention includes a water collection pipe, a water storage tank, a water pump, a water recovery pipe, a water supply pipe and an electrical control device, and also includes a water collection tank, a pressure sensor, and an overflow pipe. The water collection pipe is located on or below the ground. Connect with the outlet pipe of the washing machine, or also connect the outlet pipe of the bathtub, the outlet pipe of the washbasin, the outlet pipe of the vegetable basin, or one or more or all of the floor drain pipes, and the water collecting pipe leads into the water collecting tank. The bottom of the water collecting tank is lower than the water collecting pipe, and a pressure sensor or a liquid level sensor is arranged in the water collecting tank. The water storage tank is higher than the urinal water tank and/or the water outlet faucet of the flushing tank, and the water outlet pipe of the water pump is connected to the water storage tank. The recovery water pipe is connected to the water pump and the water collection tank, and a filter screen is arranged between the recovery water pipe and the water collection tank. A check valve is installed on the recovery water pipe. The upper end of the overflow pipe is connected to the water storage tank, and the lower end is connected to the flushing pipe downstream of the urinal flush valve, and the upper end thereof is equal to the appropriate maximum water level of the water storage tank. The bottom of the water collection tank is connected with the sewage downpipe through the dredging valve. The water supply pipe connected to the bottom of the water storage tank is connected to the flushing pipe upstream of the urinal flushing valve, and can also be connected to the water pipe upstream of the flushing tank outlet faucet at the same time. The sewer pipes of urinals and flush tanks are directly connected to public sewage pipes. The electric signal line of the pressure sensor in the water collecting tank is connected with the electromagnetic switch for controlling the opening and closing of the water pump in the electric control device.
当洗衣机的出水管、和/或浴缸的出水管、和/或洗面盆的出水管、和/或洗菜盆的出水管和/或地漏下水管的废水进入集水箱达到一定量时，压力传感器或液位传感器的信号送入电气控制装置内的水泵电磁开关，使之接通，水泵将集水箱内的废水通过回收水管抽入蓄水箱，因有滤网，废水中的杂物被拦截在集水箱内不会抽入蓄水箱。无废水进入集水箱、集水箱内的水位降低时，压力传感器检测到的压力下降或液位传感器检测到水位下降，信号送出，水泵停机。因回收水管上有止回阀，水泵停止工作时，回收水管中的水不会倒流回集水箱，第二次水泵启动时无需再向回收水管中注水，水泵即可直接工作抽水。打开便池的冲洗阀蓄水箱内的废水即可冲厕，或者打开冲洗槽的出水龙头即可用回收废水冲洗拖把等。当蓄水箱内的废水达到最高水位蓄水箱容不下时，废水自动从溢水管直接进入冲洗管排入便池。When the outlet pipe of the washing machine, and/or the outlet pipe of the bathtub, and/or the outlet pipe of the washbasin, and/or the outlet pipe of the dish basin and/or the waste water of the floor drain enters the water collection tank to a certain amount, the pressure sensor Or the signal of the liquid level sensor is sent to the electromagnetic switch of the water pump in the electrical control device to make it connected. The water pump pumps the waste water in the water collection tank into the water storage tank through the recovery water pipe. Because of the filter screen, the sundries in the waste water are intercepted There is no pumping into the storage tank in the collection tank. When no waste water enters the water collection tank and the water level in the water collection tank drops, the pressure sensor detects a drop in pressure or the liquid level sensor detects a drop in water level, a signal is sent out, and the water pump stops. Because there is a check valve on the recovery water pipe, when the water pump stops working, the water in the recovery water pipe will not flow back to the water collection tank. When the water pump is started for the second time, there is no need to inject water into the recovery water pipe, and the water pump can directly work and pump water. The waste water in the water storage tank of the flushing valve of the urinal can be opened to flush the toilet, or the water outlet tap of the flushing tank can be used to flush the mop and the like with the recovered waste water. When the waste water in the water storage tank reaches the highest water level and the water storage tank cannot accommodate, the waste water directly enters the flushing pipe from the overflow pipe and is discharged into the urinal.
本发明的优点为：1、回收洗衣洗菜洗浴后的废水再次利用，节水70～80％，有利于水资源的保护和环境保护；2、本装置结构紧凑，成本低廉，集水管集水箱等可埋入地下，不占用空间，适于家庭和宾馆、饭店客房使用；3、本装置自动运行，无需人工操作，使用简单；4、本装置用电节省，所需电力与一盏普通白炽灯相近。The advantages of the present invention are: 1. Recycling waste water after laundry, vegetable washing and bathing can be reused, saving 70-80% of water, which is beneficial to the protection of water resources and environmental protection; It can be buried in the ground without taking up space, and is suitable for use in families, hotels, and restaurant rooms; 3. The device operates automatically, without manual operation, and is easy to use; 4. The device saves electricity, and the required power is equivalent to that of an ordinary incandescent lamp. The lights are close.
(四)附图说明(4) Description of drawings
图1为本发明设生活废水二次利用装置结构示意图；Fig. 1 is a schematic diagram of the structure of a domestic wastewater secondary utilization device in the present invention;
图2为本发明设生活废水二次利用装置清淤槽结构示意图。Fig. 2 is a schematic diagram of the structure of the dredging tank of the domestic wastewater secondary utilization device in the present invention.
(五)具体实施方式(5) Specific implementation methods
本发明的生活废水二次利用装置结构如图1所示，包括集水管1、蓄水箱8、水泵7、回收水管6、供水管15和电气控制装置13，还包括集水箱2、压力传感器或液位传感器3、溢水管19，集水管1位于地面或地面以下，与洗衣机的出水管连接、或还连接浴缸的出水管、洗面盆的出水管、洗菜盆的出水管、地漏水管的一种或数种或全部，集水管1接入集水箱2。集水箱2箱底低于集水管1，集水箱2可埋入地下。集水箱2内有压力传感器或液位传感器3。蓄水箱8高于便池水箱和/或冲洗槽出水龙头16，可固定于天花板下。水泵7的出水管接入蓄水箱8。回收水管6连接水泵7与集水箱2，水泵7可固定于蓄水箱8的壁上。回收水管6与集水箱2之间装有滤网。回收水管6上装有止回阀5。溢水管19上端连接蓄水箱8，下端连接便池冲洗阀17下游的冲洗管18，其上端与蓄水箱8最高水位相平。集水箱2底部通过清淤阀4与污水下水管道相连通。蓄水箱8底部接出的供水管15连接便池冲洗阀17上游的冲洗管18和/或冲洗槽出水龙头16上游水管。集水箱2内的压力传感器或液位传感器3的电信号线与电气控制装置13内的水泵电磁开关相连接。The structure of the domestic wastewater secondary utilization device of the present invention is shown in Figure 1, including a water collection pipe 1, a water storage tank 8, a water pump 7, a water recovery pipe 6, a water supply pipe 15 and an electrical control device 13, and also includes a water collection tank 2, a pressure sensor Or the liquid level sensor 3, the overflow pipe 19, the water collecting pipe 1 is positioned at the ground or below the ground, is connected with the water outlet pipe of the washing machine, or is also connected with the water outlet pipe of the bathtub, the water outlet pipe of the washbasin, the water outlet pipe of the vegetable basin, and the floor drain pipe One or several or all, the water collecting pipe 1 is connected to the water collecting tank 2. The bottom of the water collecting tank 2 is lower than the water collecting pipe 1, and the water collecting tank 2 can be buried underground. A pressure sensor or a liquid level sensor 3 is arranged in the water collecting tank 2 . The water storage tank 8 is higher than the urinal water tank and/or the flush tank outlet tap 16, and can be fixed under the ceiling. The outlet pipe of the water pump 7 is connected to the water storage tank 8 . The water recovery pipe 6 is connected to the water pump 7 and the water collecting tank 2, and the water pump 7 can be fixed on the wall of the water storage tank 8. A strainer is installed between the recovery water pipe 6 and the water collecting tank 2 . A check valve 5 is installed on the recovery water pipe 6 . The upper end of the overflow pipe 19 is connected to the water storage tank 8, and the lower end is connected to the flushing pipe 18 downstream of the urinal flushing valve 17, and its upper end is equal to the highest water level of the water storage tank 8. The bottom of the water collecting tank 2 is communicated with the sewage sewer pipe through the dredging valve 4 . The water supply pipe 15 connected from the bottom of the water storage tank 8 is connected to the flushing pipe 18 upstream of the urinal flushing valve 17 and/or the upstream water pipe of the water outlet faucet 16 of the flushing tank. The electric signal line of the pressure sensor in the water collecting tank 2 or the liquid level sensor 3 is connected with the water pump electromagnetic switch in the electric control device 13 .
如图2所示，集水箱2底有一清淤槽21，清淤槽21的底面低于集水箱2底面，清淤阀4安装于清淤槽21底部，与公共排污管道连接。水中杂物集中在清淤槽21内。清淤阀4为电控开关阀，电气控制装置13内的清淤开关与之连接。自来水管10通过进水电磁阀12与清淤水管20连接，清淤水管20从集水箱2顶部接入集水箱2。电气控制装置13中的清淤开关与进水电磁阀12连接。当需要清淤时，接通清淤开关，清淤阀4打开，同时进水电磁阀12也打开，自来水经过进水电磁阀12、清淤水管20进入集水箱2冲洗集水箱2底、内侧和清淤槽21。清淤水管20进入集水箱2处安装有伞形出水口，出水呈伞形喷射入集水箱2内，以更有效地清洗集水箱2。清淤开关与可编程序控制器连接，设定程序后，本装置可定时自动清淤，清洗集水箱2。As shown in Figure 2, there is a dredging tank 21 at the bottom of the water collecting tank 2, the bottom surface of the dredging tank 21 is lower than the bottom surface of the water collecting tank 2, and the dredging valve 4 is installed at the bottom of the dredging tank 21, and is connected with the public sewage pipeline. Impurities in the water are concentrated in the dredging tank 21. The dredging valve 4 is an electric control switch valve, and the dredging switch in the electric control device 13 is connected with it. The running water pipe 10 is connected with the dredging water pipe 20 through the water inlet electromagnetic valve 12, and the dredging water pipe 20 is connected to the water collecting tank 2 from the top of the water collecting tank 2. The dredging switch in the electric control device 13 is connected with the water inlet electromagnetic valve 12. When dredging is required, turn on the dredging switch, open the dredging valve 4, and open the water inlet solenoid valve 12 at the same time, and tap water enters the water collection tank 2 through the water inlet solenoid valve 12 and the dredging water pipe 20 to rinse the bottom and inside of the water collection tank 2 And dredging tank 21. The dredging water pipe 20 enters the water collection box 2 and an umbrella-shaped water outlet is installed, and the water outlet is umbrella-shaped and sprayed into the water collection box 2 to clean the water collection box 2 more effectively. The dredging switch is connected with the programmable controller, and after the program is set, the device can automatically dredge regularly to clean the water collecting tank 2.
蓄水箱8内有水位传感器9。补水管14一端接入蓄水箱8，另一端经补水电磁阀11与自来水管10连接。水位传感器9的信号线与电气控制装置13内的补水开关连接，补水开关与补水电磁阀11连接。当蓄水箱8内水量不足时，水位传感器9的信号送入电气控制装置13，补水开关接通，补水电磁阀11开，自来水经补水管14进入蓄水箱8内以供使用。A water level sensor 9 is arranged in the water storage tank 8 . One end of the replenishment pipe 14 is connected to the water storage tank 8, and the other end is connected with the tap water pipe 10 through the replenishment solenoid valve 11. The signal line of the water level sensor 9 is connected with the water supply switch in the electric control device 13 , and the water supply switch is connected with the water supply solenoid valve 11 . When the water yield in the water storage tank 8 was insufficient, the signal of the water level sensor 9 was sent to the electric control device 13, the water supply switch was connected, the water supply solenoid valve 11 was opened, and tap water entered the water storage tank 8 through the water supply pipe 14 for use.
蓄水箱8箱体分为上下两部分，上为柱形，下为斜锥形，如上为圆柱形或四棱柱形，下为斜圆锥形或斜四棱锥形。箱体背面上下处于一个平面。锥底连接供水管15。此种箱体适合于靠墙安装，节省空间。更主要的是，因其下部分为锥形，回收水管6的滤网未能拦截的废水内的少量污物进入蓄水箱8后将自动沉集于锥底，随出水首先排出。从蓄水箱8顶部进入的水对下部锥体的内侧面还有冲洗作用。故本蓄水箱8有自洁功能，不会有污物滞留，导致存水发臭。Water storage tank 8 casings are divided into upper and lower two parts, and the upper part is cylindrical, and the lower part is obliquely conical, such as the top is cylindrical or quadrangular prism, and the following is oblique conical or oblique quadrangular pyramidal. The back of the cabinet is on a plane up and down. The bottom of the cone is connected to the water supply pipe 15. This kind of cabinet is suitable for installation against the wall, saving space. More importantly, because the lower part is conical, a small amount of dirt in the waste water that the filter screen of the recovery water pipe 6 fails to intercept enters the water storage tank 8 and will automatically settle at the bottom of the cone, and will be discharged first with the effluent. The water that enters from the top of the water storage tank 8 also has a flushing effect on the inner surface of the lower cone. Therefore, this water storage tank 8 has a self-cleaning function, and there will be no dirt to stay, causing the stagnant water to stink.
电气控制装置13内集中了本生活废水二次利用装置控制开关，电气控制装置13可固定于蓄水箱8的壁上。本生活废水二次利用装置的电气控制线路集中于电气控制装置13内，其上有水泵开关、补水开关、清淤开关等。压力传感器或液位传感器3的信号线与水泵7电源线路上的水泵开关连接，控制水泵开关的启闭。清淤开关与进水电磁阀12和清淤阀4连接，清淤开关可与可编程序控制器PLC连接，由程序控制清淤开关定时启闭；补水开关与补水电磁阀11连接，水位传感器9的信号线与补水开关连接，控制补水开关的启闭。The control switch of the domestic waste water secondary utilization device is concentrated in the electric control device 13 , and the electric control device 13 can be fixed on the wall of the water storage tank 8 . The electrical control circuits of the domestic wastewater secondary utilization device are concentrated in the electrical control device 13, on which there are water pump switches, water supply switches, dredging switches, etc. The signal line of the pressure sensor or the liquid level sensor 3 is connected with the water pump switch on the power line of the water pump 7 to control the opening and closing of the water pump switch. The dredging switch is connected with the water inlet solenoid valve 12 and the dredging valve 4, the dredging switch can be connected with the programmable logic controller PLC, and the dredging switch is controlled by the program to open and close at regular intervals; the water replenishing switch is connected with the replenishing solenoid valve 11, and the water level sensor The signal line of 9 is connected with the water replenishment switch to control the opening and closing of the water replenishment switch.
Claims (9)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100202095A CN1300419C (en) | 2005-01-14 | 2005-01-14 | Domestic waste water secondary utilization device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100202095A CN1300419C (en) | 2005-01-14 | 2005-01-14 | Domestic waste water secondary utilization device |
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| Publication Number | Publication Date |
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| CN1651670A CN1651670A (en) | 2005-08-10 |
| CN1300419C true CN1300419C (en) | 2007-02-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2005100202095A Expired - Fee Related CN1300419C (en) | 2005-01-14 | 2005-01-14 | Domestic waste water secondary utilization device |
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| CN (1) | CN1300419C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105417791B (en) * | 2016-01-12 | 2017-12-19 | 成都大唐人环境治理有限公司 | Sewerage disposing machine |
| CN112240044A (en) * | 2019-07-16 | 2021-01-19 | 唐清清 | Intelligent waste water recycling control device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0671108A (en) * | 1992-08-21 | 1994-03-15 | Miura Co Ltd | Controlling apparatus for operation of degasing apparatus in water supplying system of building |
| US5459890A (en) * | 1993-04-01 | 1995-10-24 | Jarocki; Roger A. | Water blending and recycling apparatus |
| CN2422350Y (en) * | 2000-05-13 | 2001-03-07 | 李国政 | Automatic device for treating and reusing domestic waste water |
| CN2494383Y (en) * | 2001-06-15 | 2002-06-05 | 李泉兴 | High-efficiency domestic water saver |
| CN1354309A (en) * | 2001-12-13 | 2002-06-19 | 王庭洪 | Domestic water-saving device capable of automatically clearing pipeline blockage |
| CN2557598Y (en) * | 2002-07-01 | 2003-06-25 | 王世举 | Domestic water-saving machine |
| CN2765950Y (en) * | 2005-01-14 | 2006-03-22 | 杨忠 | Domestic wastewater secondary utilization device |
-
2005
- 2005-01-14 CN CNB2005100202095A patent/CN1300419C/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0671108A (en) * | 1992-08-21 | 1994-03-15 | Miura Co Ltd | Controlling apparatus for operation of degasing apparatus in water supplying system of building |
| US5459890A (en) * | 1993-04-01 | 1995-10-24 | Jarocki; Roger A. | Water blending and recycling apparatus |
| CN2422350Y (en) * | 2000-05-13 | 2001-03-07 | 李国政 | Automatic device for treating and reusing domestic waste water |
| CN2494383Y (en) * | 2001-06-15 | 2002-06-05 | 李泉兴 | High-efficiency domestic water saver |
| CN1354309A (en) * | 2001-12-13 | 2002-06-19 | 王庭洪 | Domestic water-saving device capable of automatically clearing pipeline blockage |
| CN2557598Y (en) * | 2002-07-01 | 2003-06-25 | 王世举 | Domestic water-saving machine |
| CN2765950Y (en) * | 2005-01-14 | 2006-03-22 | 杨忠 | Domestic wastewater secondary utilization device |
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| CN1651670A (en) | 2005-08-10 |
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