CN207760924U - Constant pressure water supply system based on PLC controls - Google Patents
Constant pressure water supply system based on PLC controls Download PDFInfo
- Publication number
- CN207760924U CN207760924U CN201721691448.8U CN201721691448U CN207760924U CN 207760924 U CN207760924 U CN 207760924U CN 201721691448 U CN201721691448 U CN 201721691448U CN 207760924 U CN207760924 U CN 207760924U
- Authority
- CN
- China
- Prior art keywords
- pressure
- water
- water tank
- tank
- auxiliary
- 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 - Fee Related
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 294
- 238000004140 cleaning Methods 0.000 claims description 18
- 239000007921 spray Substances 0.000 claims description 14
- 239000007788 liquid Substances 0.000 claims description 4
- 239000003814 drug Substances 0.000 claims description 2
- 239000004744 fabric Substances 0.000 claims 1
- 238000005265 energy consumption Methods 0.000 abstract description 3
- 239000010865 sewage Substances 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 239000008400 supply water Substances 0.000 description 1
Classifications
-
- 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
Landscapes
- Control Of Fluid Pressure (AREA)
Abstract
本实用新型涉及一种基于PLC控制的恒压供水系统，属于市政供水技术领域，提供了一种结构简单，使用方便，采用PLC进行自动控制，有效降低能耗的基于PLC控制的恒压供水系统，所采用的技术方案为高压主水箱和高压副水箱的下部均设置水位传感器，高压主水箱和高压副水箱的底部与供水总管相连接，供水总管上安装有水压力传感器，高压主水箱和高压副水箱的顶部与高压气罐相连接，高压气罐上安装有气压传感器，高压主水箱和高压副水箱分别通过进水管与高压水泵相连接；本实用新型广泛用于恒压供水。
The utility model relates to a constant pressure water supply system based on PLC control, which belongs to the technical field of municipal water supply, and provides a constant pressure water supply system based on PLC control which is simple in structure, easy to use, adopts PLC for automatic control, and effectively reduces energy consumption. , the technical scheme adopted is to set water level sensors at the lower part of the high-pressure main water tank and the high-pressure auxiliary water tank, the bottom of the high-pressure main water tank and the high-pressure auxiliary water tank are connected to the water supply main pipe, and a water pressure sensor is installed on the water supply main pipe, and the high-pressure main water tank and the high-pressure The top of the auxiliary water tank is connected with a high-pressure gas tank, and an air pressure sensor is installed on the high-pressure gas tank. The high-pressure main water tank and the high-pressure auxiliary water tank are respectively connected with a high-pressure water pump through a water inlet pipe; the utility model is widely used for constant pressure water supply.
Description
技术领域technical field
本实用新型涉及一种基于PLC控制的恒压供水系统，属于市政供水技术领域。The utility model relates to a constant pressure water supply system based on PLC control, which belongs to the technical field of municipal water supply.
背景技术Background technique
传统的供水方式多为加压供水，一般采用地下加压设备和高位水箱，或直接采用地下加压设备分区供水，由于高位水箱不能和外界空气完全隔离，灰尘等杂物容易进入，使得水容易受到污染，使用分区供水时，由于变频恒压给水模式用户管网中的压力由泵来保持，这样造成水泵长时间工作，导致供水的水压不稳定，而且电能消耗较高，供水设备易发生故障，操作麻烦。The traditional water supply method is mostly pressurized water supply. Generally, underground pressurized equipment and high-level water tanks are used, or underground pressurized equipment is used directly to supply water in partitions. Since the high-level water tank cannot be completely isolated from the outside air, dust and other sundries can easily enter, making water easy. Contaminated, when using partitioned water supply, the pressure in the user pipe network is maintained by the pump due to the frequency conversion constant pressure water supply mode, which causes the water pump to work for a long time, resulting in unstable water pressure, and high power consumption, and the water supply equipment is prone to accidents Faulty, troublesome operation.
实用新型内容Utility model content
为解决现有技术存在的技术问题，本实用新型提供了一种结构简单，使用方便，采用PLC进行自动控制，有效降低能耗的基于PLC控制的恒压供水系统。In order to solve the technical problems existing in the prior art, the utility model provides a PLC-controlled constant-pressure water supply system with simple structure, convenient use, automatic control by PLC, and effective reduction of energy consumption.
为实现上述目的，本实用新型所采用的技术方案为基于PLC控制的恒压供水系统，包括高压主水箱和高压副水箱，所述高压主水箱和高压副水箱的下部均设置水位传感器，所述高压主水箱和高压副水箱的底部均通过供水管路与供水总管相连接，所述供水总管上安装有水压力传感器，所述高压主水箱和高压副水箱底部的供水管路上分别安装有主水箱放水控制阀和副水箱放水控制阀，所述高压主水箱和高压副水箱的顶部均通过补气管与高压气罐相连接，所述高压气罐上安装有气压传感器，所述高压主水箱和高压副水箱顶部的补气管上分别安装有主水箱补气阀和副水箱补气阀，所述高压主水箱和高压副水箱分别通过进水管与高压水泵相连接，所述高压主水箱和高压副水箱的进水管上分别安装有单向阀和进水控制阀，所述水位传感器、水压力传感器、主水箱放水控制阀、副水箱放水控制阀、气压传感器、主水箱补气阀、副水箱补气阀和进水控制阀均匀PLC控制系统相连接。In order to achieve the above purpose, the technical solution adopted by the utility model is a constant pressure water supply system based on PLC control, including a high-pressure main water tank and a high-pressure auxiliary water tank, and water level sensors are arranged at the lower parts of the high-pressure main water tank and the high-pressure auxiliary water tank. The bottoms of the high-pressure main water tank and the high-pressure auxiliary water tank are connected to the main water supply pipe through the water supply pipeline, and a water pressure sensor is installed on the water supply main water tank, and a main water tank is respectively installed on the water supply pipeline at the bottom of the high-pressure main water tank and the high-pressure auxiliary water tank The water discharge control valve and the water discharge control valve of the auxiliary water tank, the tops of the high-pressure main water tank and the high-pressure auxiliary water tank are connected with the high-pressure gas tank through the air supply pipe, and the high-pressure gas tank is equipped with an air pressure sensor. The main water tank air supply valve and the auxiliary water tank air supply valve are respectively installed on the air supply pipe on the top of the auxiliary water tank. The high-pressure main water tank and the high-pressure auxiliary water tank are respectively connected to the high-pressure water pump through the water inlet pipe. A one-way valve and a water inlet control valve are respectively installed on the water inlet pipe, the water level sensor, the water pressure sensor, the water discharge control valve of the main water tank, the water discharge control valve of the auxiliary water tank, the air pressure sensor, the air supply valve of the main water tank, and the air supply of the auxiliary water tank The valve and the water inlet control valve are evenly connected with the PLC control system.
优选的，所述高压气罐上还连接有高压气泵，所述高压气罐和高压气泵之间设置有补气单向阀，所述高压气泵与PLC控制系统相连接。Preferably, a high-pressure air pump is also connected to the high-pressure air tank, an air supply check valve is arranged between the high-pressure air tank and the high-pressure air pump, and the high-pressure air pump is connected to a PLC control system.
优选的，所述高压主水箱和高压副水箱上均安装有水箱清洗装置，所述水箱清洗装置主要由水质传感器、布水管、喷水管、混合箱和加药箱构成，所述水质传感器安装在高压主水箱和高压副水箱内部，所述布水管通过支架安装在高压主水箱和高压副水箱的顶部，所述布水管上连接有多个喷水管，所述喷水管延伸至高压主水箱和高压副水箱的内部，所述喷水管上安装有多个清洗喷头，所述混合箱安装在高压主水箱和高压副水箱的侧部，所述混合箱上安装有加药箱，所述加药箱通过加药管与混合箱顶部连接，所述加药管上安装有加药泵和加药控制阀，所述混合箱的顶部通过药液管与布水管相连接，所述混合箱的底部通过加水管与高压水泵相连接，所述高压主水箱和高压副水箱的底部还设置有排污阀，所述水质传感器、加药泵、加药控制阀、排污阀和清洗控制阀均与PLC控制系统相连接。Preferably, a water tank cleaning device is installed on the high-pressure main water tank and the high-pressure auxiliary water tank, and the water tank cleaning device is mainly composed of a water quality sensor, a water distribution pipe, a water spray pipe, a mixing tank and a dosing tank. The water quality sensor is installed Inside the high-pressure main water tank and the high-pressure auxiliary water tank, the water distribution pipe is installed on the top of the high-pressure main water tank and the high-pressure auxiliary water tank through brackets, and a plurality of water spray pipes are connected to the water distribution pipe, and the water spray pipes extend to the high-pressure main water tank. Inside the water tank and the high-pressure auxiliary water tank, multiple cleaning nozzles are installed on the water spray pipe, the mixing tank is installed on the side of the high-pressure main water tank and the high-pressure auxiliary water tank, and a dosing box is installed on the mixing tank. The dosing box is connected to the top of the mixing box through the dosing pipe, the dosing pump and the dosing control valve are installed on the dosing pipe, the top of the mixing box is connected to the water distribution pipe through the dosing pipe, the mixing The bottom of the tank is connected to the high-pressure water pump through the water pipe. The bottom of the high-pressure main water tank and high-pressure auxiliary water tank is also provided with a blowdown valve. The water quality sensor, the dosing pump, the dosing control valve, the blowdown valve and the cleaning control valve are all Connect with PLC control system.
与现有技术相比，本实用新型具有以下技术效果：本实用新型结构简单，使用方便，采用PLC系统进行自动控制，采用高压气罐、高压水箱和高压水泵的配合使用，利用高压气罐维持供水管路的供水压力，保证高压气罐压力恒定，能够有效降低高压水泵的工作时间，降低能耗，并且通过水质传感器能够实时检测水箱的水质情况，自动对水箱进行清洗，使用更加方便，能够充分保证水质良好。Compared with the prior art, the utility model has the following technical effects: the utility model is simple in structure, easy to use, adopts PLC system for automatic control, adopts high-pressure gas tank, high-pressure water tank and high-pressure water pump in cooperation, and uses high-pressure gas tank to maintain The water supply pressure of the water supply pipeline ensures the constant pressure of the high-pressure gas tank, which can effectively reduce the working time of the high-pressure water pump and reduce energy consumption, and the water quality sensor can detect the water quality of the water tank in real time, and automatically clean the water tank, which is more convenient to use and can Fully ensure good water quality.
附图说明Description of drawings
图1为本实用的结构示意图。Fig. 1 is the structural schematic diagram of this utility.
图2为本实用新型中水箱的结构示意图。Fig. 2 is the structural representation of the water tank in the utility model.
图3为本实用新型的控制原理框图。Fig. 3 is a control principle block diagram of the utility model.
具体实施方式Detailed ways
为了使本实用新型所要解决的技术问题、技术方案及有益效果更加清楚明白，以下结合附图及实施例，对本实用新型进行进一步详细说明。应当理解，此处所描述的具体实施例仅仅用以解释本实用新型，并不用于限定本实用新型。In order to make the technical problems, technical solutions and beneficial effects to be solved by the utility model clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not intended to limit the utility model.
如图1至图3所示，基于PLC控制的恒压供水系统，包括高压主水箱1和高压副水箱2，高压主水箱1和高压副水箱2的下部均设置水位传感器32，高压主水箱1和高压副水箱2的底部均通过供水管路3与供水总管4相连接，供水总管4上安装有水压力传感器24，高压主水箱1和高压副水箱2底部的供水管路上分别安装有主水箱放水控制阀5和副水箱放水控制阀6，高压主水箱1和高压副水箱2的顶部均通过补气管7与高压气罐8相连接，高压气罐8上安装有气压传感器31，高压主水箱1和高压副水箱2顶部的补气管上分别安装有主水箱补气阀9和副水箱补气阀10，高压主水箱1和高压副水箱2分别通过进水管11与高压水泵12相连接，高压主水箱1和高压副水箱2的进水管上分别安装有单向阀13和进水控制阀14，水位传感器32、水压力传感器24、主水箱放水控制阀5、副水箱放水控制阀6、气压传感器31、主水箱补气阀9、副水箱补气阀10和进水控制阀14均匀PLC控制系统33相连接。As shown in Figures 1 to 3, the constant pressure water supply system based on PLC control includes a high-pressure main water tank 1 and a high-pressure auxiliary water tank 2. and the bottom of the high-pressure auxiliary water tank 2 are connected to the water supply main pipe 4 through the water supply pipeline 3, and the water pressure sensor 24 is installed on the water supply main water pipe 4, and the main water tank is respectively installed on the water supply pipeline at the bottom of the high-pressure main water tank 1 and the high-pressure auxiliary water tank 2 The water discharge control valve 5 and the water discharge control valve 6 of the auxiliary water tank, the tops of the high-pressure main water tank 1 and the high-pressure auxiliary water tank 2 are connected with the high-pressure gas tank 8 through the air supply pipe 7, and the high-pressure gas tank 8 is equipped with an air pressure sensor 31, and the high-pressure main water tank 1 and the air supply pipes on the top of the high-pressure auxiliary water tank 2 are respectively equipped with a main water tank air supply valve 9 and an auxiliary water tank 10. The water inlet pipes of the main water tank 1 and the high-pressure auxiliary water tank 2 are respectively equipped with a check valve 13 and a water inlet control valve 14, a water level sensor 32, a water pressure sensor 24, a water discharge control valve 5 for the main water tank, a water discharge control valve 6 for the auxiliary water tank, and an air pressure valve. The sensor 31, the air supply valve 9 of the main water tank, the air supply valve 10 of the auxiliary water tank and the water inlet control valve 14 are evenly connected with the PLC control system 33.
在使用时，高压水箱内蓄满水，高压气罐内的压力恒定，且高压气罐内的压力大于供水总管内的压力。在进行供水时，利用水箱内水压和气罐压力进行供水，供水总管上的水压力传感器实时向PLC控制系统传输供水压力信号，当压力减小时，PLC控制系统控制主水箱补气阀、主水箱放水控制阀的开度增加，高压气罐对高压主水箱进行加压；当压力增大时，PLC控制系统控制主水箱补气阀、主水箱放水控制阀的开度减小，高压气罐对高压主水箱的压力减小，利用高压气罐维持供水管路的压力恒定。当水位传感器检测到水箱内水位低于设定值时，高压水泵的压力大于高压气罐的压力，高压水泵对高压主水箱进行蓄水，水箱上部空气回到高压气罐内，当高压气罐内压力到达设定值时，停止蓄水，同时不影响供水管路的供水，保持压力恒定。高压副水箱用于在高压主水箱需要清洗时，切换至高压副水箱供水，原理与高压主水箱的供水原理相同。When in use, the high-pressure water tank is full of water, the pressure in the high-pressure gas tank is constant, and the pressure in the high-pressure gas tank is greater than the pressure in the water supply main pipe. When supplying water, the water pressure in the water tank and the pressure of the air tank are used for water supply. The water pressure sensor on the water supply main pipe transmits the water supply pressure signal to the PLC control system in real time. When the pressure decreases, the PLC control system controls the air supply valve of the main water tank and the main water tank. The opening of the water discharge control valve increases, and the high-pressure air tank pressurizes the high-pressure main water tank; when the pressure increases, the PLC control system controls the opening of the main water tank air supply valve and the water discharge control valve of the main water tank to decrease, and the high-pressure air tank pressurizes the main water tank. The pressure of the high-pressure main water tank is reduced, and the pressure of the water supply line is maintained constant by using a high-pressure gas tank. When the water level sensor detects that the water level in the water tank is lower than the set value, the pressure of the high-pressure water pump is greater than the pressure of the high-pressure air tank. When the internal pressure reaches the set value, the water storage is stopped, and the water supply of the water supply pipeline is not affected at the same time, and the pressure is kept constant. The high-pressure auxiliary water tank is used to switch to the high-pressure auxiliary water tank for water supply when the high-pressure main water tank needs to be cleaned. The principle is the same as that of the high-pressure main water tank.
其中，高压气罐8上还连接有高压气泵15，高压气罐8和高压气泵15之间设置有补气单向阀16，高压气泵15与PLC控制系统33相连接。高压气泵主要用于对高压气罐补充气压，当水箱内的水位传感器检测到水箱满水状态时，高压气罐内的压力低于设定值，利用高压气泵自动对高压气罐进行补气。Wherein, the high-pressure air tank 8 is also connected with a high-pressure air pump 15, and an air supply check valve 16 is arranged between the high-pressure air tank 8 and the high-pressure air pump 15, and the high-pressure air pump 15 is connected with a PLC control system 33. The high-pressure air pump is mainly used to replenish air pressure to the high-pressure air tank. When the water level sensor in the water tank detects that the water tank is full of water, the pressure in the high-pressure air tank is lower than the set value, and the high-pressure air pump is used to automatically replenish the high-pressure air tank.
此外，高压主水箱1和高压副水箱2上均安装有水箱清洗装置，水箱清洗装置主要由水质传感器34、布水管17、喷水管18、混合箱19和加药箱20构成，水质传感器34安装在高压主水箱1和高压副水箱2内部，布水管17通过支架21安装在高压主水箱1和高压副水箱2的顶部，布水管17上连接有多个喷水管18，喷水管18延伸至高压主水箱1和高压副水箱2的内部，喷水管18上安装有多个清洗喷头22，混合箱19安装在高压主水箱1和高压副水箱2的侧部，混合箱19上安装有加药箱20，加药箱20通过加药管23与混合箱19顶部连接，加药管23上安装有加药泵25和加药控制阀26，混合箱19的顶部通过药液管27与布水管17相连接，混合箱19的底部通过加水管28与高压水泵12相连接，加水管28上安装有清洗控制阀29，高压主水箱1和高压副水箱2的底部还设置有排污阀30，水质传感器34、加药泵25、加药控制阀26、排污阀30和清洗控制阀29均与PLC控制系统33相连接。当水质传感器检测到高压主水箱内水质较差需要清洗时，PLC自动切换至高压副水箱供水，同时控制加药泵将清洗药液泵入混合箱内，高压水泵向混合箱内供水，将药液进行稀释，并通过布水管分配到各个喷水管，然后利用清洗喷头对水箱进行高压喷洗，清洗完成后，自动打开排污阀进行排污，然后再利用高压水泵对水箱进行冲洗，操作方便，便于水箱的清洗，保证水箱内水质良好。In addition, a water tank cleaning device is installed on the high-pressure main water tank 1 and the high-pressure auxiliary water tank 2. The water tank cleaning device is mainly composed of a water quality sensor 34, a water distribution pipe 17, a water spray pipe 18, a mixing tank 19 and a dosing tank 20. The water quality sensor 34 Installed inside the high-pressure main water tank 1 and the high-pressure auxiliary water tank 2, the water distribution pipe 17 is installed on the top of the high-pressure main water tank 1 and the high-pressure auxiliary water tank 2 through the bracket 21, and a plurality of water spray pipes 18 are connected to the water distribution pipe 17, and the water spray pipe 18 Extending to the inside of the high-pressure main water tank 1 and the high-pressure auxiliary water tank 2, a plurality of cleaning nozzles 22 are installed on the water spray pipe 18, and the mixing tank 19 is installed on the side of the high-pressure main water tank 1 and the high-pressure auxiliary water tank 2, and the mixing tank 19 is installed There is a dosing box 20, the dosing box 20 is connected to the top of the mixing box 19 through a dosing pipe 23, a dosing pump 25 and a dosing control valve 26 are installed on the dosing pipe 23, and the top of the mixing box 19 passes through a medicine liquid pipe 27 Connected to the water distribution pipe 17, the bottom of the mixing tank 19 is connected to the high-pressure water pump 12 through the water supply pipe 28, the cleaning control valve 29 is installed on the water supply pipe 28, and the bottom of the high-pressure main water tank 1 and the high-pressure auxiliary water tank 2 is also provided with a drain valve 30 , the water quality sensor 34 , the dosing pump 25 , the dosing control valve 26 , the sewage valve 30 and the cleaning control valve 29 are all connected to the PLC control system 33 . When the water quality sensor detects that the water quality in the high-pressure main water tank is poor and needs to be cleaned, the PLC automatically switches to the high-pressure auxiliary water tank for water supply, and at the same time controls the dosing pump to pump the cleaning liquid into the mixing tank, and the high-pressure water pump supplies water to the mixing tank. Dilute the liquid and distribute it to each spray pipe through the water distribution pipe, and then use the cleaning nozzle to spray the water tank with high pressure. After the cleaning is completed, the sewage valve will be automatically opened to discharge the sewage, and then the water tank will be flushed with a high-pressure water pump, which is easy to operate. It is convenient for cleaning the water tank and ensures good water quality in the water tank.
以上所述仅为本实用新型的较佳实施例而已，并不用以限制本实用新型，凡在本实用新型的精神和原则之内所作的任何修改、等同替换和改进等，均应包在本实用新型范围内。The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present utility model shall be included in this utility model. within the scope of utility models.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721691448.8U CN207760924U (en) | 2017-12-07 | 2017-12-07 | Constant pressure water supply system based on PLC controls |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721691448.8U CN207760924U (en) | 2017-12-07 | 2017-12-07 | Constant pressure water supply system based on PLC controls |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207760924U true CN207760924U (en) | 2018-08-24 |
Family
ID=63189635
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721691448.8U Expired - Fee Related CN207760924U (en) | 2017-12-07 | 2017-12-07 | Constant pressure water supply system based on PLC controls |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207760924U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112012279A (en) * | 2020-09-19 | 2020-12-01 | 淄博华源矿业有限公司 | Circulating emergency water-using device for vertical filling station |
| CN113920828A (en) * | 2021-10-15 | 2022-01-11 | 宁波大学 | Controllable variable-pressure unsteady flow water supply experimental device |
-
2017
- 2017-12-07 CN CN201721691448.8U patent/CN207760924U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112012279A (en) * | 2020-09-19 | 2020-12-01 | 淄博华源矿业有限公司 | Circulating emergency water-using device for vertical filling station |
| CN113920828A (en) * | 2021-10-15 | 2022-01-11 | 宁波大学 | Controllable variable-pressure unsteady flow water supply experimental device |
| CN113920828B (en) * | 2021-10-15 | 2022-05-27 | 宁波大学 | A controllable variable pressure non-constant flow water supply experimental device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201722734U (en) | Parallel frequency-conversion energy-saving water feeding system of no-negative-pressure water pond | |
| CN207760924U (en) | Constant pressure water supply system based on PLC controls | |
| CN201908349U (en) | Sanitary ware with automatic cleaning function | |
| CN206693323U (en) | A kind of skeleton symbol is taken a shower water saving fixtures automatically | |
| CN207760943U (en) | Self-cleaning type constant pressure water supply system | |
| CN201730146U (en) | Intelligent constant-pressure variable-output water supply device | |
| CN201321634Y (en) | Energy-saving water supply device | |
| CN203728930U (en) | Cleaning device for annealing-pickling line | |
| CN215977511U (en) | Water tank type pipe network pressure-superposed water supply equipment with cleaning and pressurizing functions | |
| CN104846937A (en) | Pipe network pressure-superposed water supply equipment with auxiliary energy-saving small-flow pump | |
| CN203878664U (en) | Vortex washing self-cleaning water tank | |
| CN202430774U (en) | Full-automatic pressure-compensating zone pressure-superposed water supply equipment | |
| CN207527766U (en) | A kind of micro- mist humidifier water supply installation of air-conditioning | |
| CN204023719U (en) | A kind of box voltage-stabilizing and energy-saving water system that laminates | |
| CN206838703U (en) | A kind of high-efficient cleaning system | |
| CN201588257U (en) | Partial pressure tank type environmental protection and energy saving water supply equipment | |
| CN205701605U (en) | A kind of automatic electronic cleans device | |
| CN217352724U (en) | A non-negative pressure water supply equipment with cleaning function | |
| CN205314190U (en) | High pressure air water towards stabilising arrangement | |
| CN203160366U (en) | Closestool flushing system used in restroom | |
| CN203420303U (en) | Non-negative-pressure variable frequency water supply device directly connected to pipeline networks of tap water | |
| CN209613747U (en) | Pure water cleaning device | |
| CN204510380U (en) | A kind of water saving system of toilet | |
| CN216020805U (en) | Water storage tank of sweeper | |
| CN208668557U (en) | Water tank free closestool |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180824 |