CN209958421U - Energy-saving frequency conversion water supply equipment - Google Patents
Energy-saving frequency conversion water supply equipment Download PDFInfo
- Publication number
- CN209958421U CN209958421U CN201920138836.6U CN201920138836U CN209958421U CN 209958421 U CN209958421 U CN 209958421U CN 201920138836 U CN201920138836 U CN 201920138836U CN 209958421 U CN209958421 U CN 209958421U
- Authority
- CN
- China
- Prior art keywords
- water supply
- supply assembly
- region
- low
- region water
- 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.)
- Active
Links
Images
Landscapes
- Domestic Plumbing Installations (AREA)
Abstract
The utility model belongs to the technical field of frequency conversion water supply equipment technique and specifically relates to an energy-saving frequency conversion water supply equipment is related to. Comprises a water tank connected with a municipal tap water pipe network, a low-region water supply assembly and a middle-region water supply assembly; the low-region water supply assembly is connected with the water tank, and the middle-region water supply assembly is connected with the low-region water supply assembly through a first normally open valve; the low-region water supply assembly and the middle-region water supply assembly are both connected with a household water inlet pipeline; and the pipeline of the low-region water supply assembly is provided with an air pressure tank. The utility model discloses low district water supply assembly supplies water for the middle district water supply assembly, reduces equipment distribution power to utilize energy stack principle to reduce the equipment lift, thereby reduce the working costs.
Description
Technical Field
The utility model belongs to the technical field of frequency conversion water supply equipment technique and specifically relates to an energy-saving frequency conversion water supply equipment is related to.
Background
The pressure of municipal tap water pipe networks is between 0.2 and 0.4Mpa, which can only meet the water supply requirements of users with multiple layers (1 to 6 layers), and at present, more high-rise buildings are provided, and secondary water supply equipment is adopted. The secondary water supply equipment is divided into constant-pressure variable-frequency water supply equipment and non-negative-pressure water supply equipment, and the non-negative-pressure water supply equipment is not explained here. Constant voltage frequency conversion water supply equipment is directly connected with the water tank, realizes automatic constant voltage water supply through frequency conversion regulation and control and intelligent control system, and equipment includes water pump, pipe valve instrument, switch board, pressure sensor etc.. According to the regulation of the water supply and drainage design specification GB50015 of the building, the secondary water supply of the high-rise building is preferably in a vertical partition parallel water supply mode. However, in the prior art, the low zone, the middle zone and the high zone (or the low zone and the middle zone) are independent water supply systems, such as the structure shown in fig. 1, and meanwhile, the outflow probability is high, the design flow is large, the power of a water pump motor is large, and the operating cost is high; because the design flow of the constant-pressure variable-frequency water supply equipment is larger than the conventional water consumption, the water consumption time in the peak period every day is about 1 hour, and the water consumption in the rest time is only about 5 percent of the design flow. The more water consumption points, the higher the working efficiency of the equipment, the higher the power of the equipment and the higher the operating cost.
The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information constitutes prior art already known to a person skilled in the art.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an energy-saving variable frequency water supply equipment has solved the extravagant technical problem of the energy among the prior art.
The utility model provides an energy-saving frequency conversion water supply equipment, include: the water tank, the low-region water supply assembly and the middle-region water supply assembly are connected with a municipal tap water pipe network;
the low-region water supply assembly is connected with the water tank, and the middle-region water supply assembly is connected with the low-region water supply assembly through a first normally open valve;
the low-region water supply assembly and the middle-region water supply assembly are both connected with a household water inlet pipeline;
and the pipeline of the low-region water supply assembly is provided with an air pressure tank.
In the technical scheme, the device further comprises a high-area water supply assembly;
one end of the high-region water supply assembly is connected with the middle-region water supply assembly through a second normally open valve; the other end is connected with the water inlet pipeline of the house.
In the above technical solution, further, a first normally-closed valve is further disposed between the low region water supply assembly and the middle region water supply assembly.
In the above technical solution, further, a second normally-closed valve is further disposed between the high-region water supply assembly and the middle-region water supply assembly.
In the above technical solution, further, a first flow stabilizing tank is further disposed between the low region water supply assembly and the middle region water supply assembly;
and a second steady flow tank is also arranged between the high region water supply assembly and the middle region water supply assembly.
In the above technical scheme, further, a pressure maintaining tank is arranged on the pipelines of the middle region water supply assembly and the high region water supply assembly.
In the above technical solution, further, the low area water supply assembly, the middle area water supply assembly and the high area water supply assembly are all connected with the household water inlet pipeline through a flow meter and an equipment outlet valve.
In the above technical solution, further, the low region water supply assembly, the middle region water supply assembly and the high region water supply assembly are provided with water outlet pressure sensors on their pipelines.
In the above technical scheme, further, the low zone water supply subassembly the middle zone water supply subassembly with the high zone water supply subassembly all includes water pump inlet valve, water pump, check valve, water pump outlet valve that connect gradually.
In the above technical solution, further, soft joints are connected between the water pump inlet valve and the water pump and between the water pump and the check valve.
Compared with the prior art, the utility model provides an energy-saving variable frequency water supply equipment has following advantage:
the utility model provides energy-saving variable frequency water supply equipment, which comprises a water tank connected with a municipal tap water pipe network, a low-region water supply component and a middle-region water supply component; the low region water supply assembly is connected with the water tank, and the middle region water supply assembly is connected with the low region water supply assembly through a first normally open valve; the low-region water supply assembly and the middle-region water supply assembly are both connected with a household water inlet pipeline; the pipeline of the low-region water supply assembly is provided with an air pressure tank. In the using process, the water is supplied to the middle area water supply assembly through the low area water supply assembly, the power distribution power of the equipment is reduced, and the lift of the equipment is reduced by utilizing an energy superposition principle, so that the operating cost is reduced; meanwhile, the pipeline of the low-region water supply assembly is provided with the air pressure tank, water is stored in the tank through the extremely low compressibility of water by external force, the air is compressed and pressurized, the water can be discharged through expansion of the compressed air when the external force disappears, and then the water can be discharged through the air pressure tank when a small amount of water is needed, so that the air pressure tank can be used without opening the whole set of equipment, and the energy-saving advantage is achieved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural view of a water supply apparatus of the prior art;
fig. 2 is a first schematic structural diagram of an energy-saving variable frequency water supply device provided by an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a second energy-saving variable-frequency water supply device according to an embodiment of the present invention;
fig. 4 is a third schematic structural diagram of the energy-saving variable frequency water supply equipment provided by the embodiment of the present invention;
fig. 5 is a fourth schematic structural diagram of the energy-saving variable frequency water supply equipment provided by the embodiment of the present invention;
fig. 6 is a fifth schematic structural diagram of an energy-saving variable frequency water supply device provided in an embodiment of the present invention;
fig. 7 is a schematic diagram of a sixth structure of the energy-saving variable frequency water supply equipment according to the embodiment of the present invention.
Icon:
100-municipal tap water network; 200-a water tank; 301-a first ballast tank; 302-a second ballast tank; 401 — a first normally closed valve; 402-a second normally closed valve; 501-a first normally open valve; 502-a second normally open valve; 600-a low area water supply assembly; 700-middle area water supply assembly; 800-high area water supply assembly; 900-air pressure tank;
1-water pump inlet valve; 2-a soft joint; 3-a water pump; 4-a check valve; 5-water pump outlet valve; 6-a flow meter; 7-equipment outlet valve; 8-water outlet pressure sensor.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The present invention will be described in further detail below with reference to specific embodiments and with reference to the accompanying drawings.
Examples
As shown in fig. 2 to 7, the energy-saving variable-frequency water supply equipment provided by the embodiment comprises: a water tank 200, a low region water supply assembly 600 and a middle region water supply assembly 700 connected to the municipal tap water pipe network 100; the low region water supply assembly 600 is connected with the water tank 200, and the middle region water supply assembly 700 is connected with the low region water supply assembly 600 through a first normally open valve 501; the low-region water supply assembly 600 and the middle-region water supply assembly 700 are both connected with a household water inlet pipeline; the low region water supply assembly 600 is provided with a pneumatic tank 900 on a pipe.
Specifically, the energy-saving variable frequency water supply equipment further comprises a high-region water supply assembly 800; one end of the high region water supply assembly 800 is connected with the middle region water supply assembly 700 through a second normally open valve 502; the other end is connected with a water inlet pipeline of the house.
It should be noted that, according to the difference of the height of the building, the system can be divided into three sets of devices, namely, the low area water supply assembly 600, the middle area water supply assembly 700 and the high area water supply assembly 800, or two sets of devices, namely, the low area water supply assembly 600 and the middle area water supply assembly 700.
It should be noted that the energy-saving variable frequency water supply equipment also comprises a low-zone controller, a middle-zone controller and a high-zone controller; the low region water supply assembly 600 is connected with the low region controller, the middle region water supply assembly 700 is connected with the middle region controller, and the high region water supply assembly 800 is connected with the high region controller; the low-region water supply assembly 600, the middle-region water supply assembly 700 and the high-region water supply assembly 800 are respectively controlled by the low-region controller, the middle-region controller and the high-region controller, so that the labor division is clear, and the working efficiency is improved.
In the alternative of this embodiment, the low area water supply assembly 600, the middle area water supply assembly 700 and the high area water supply assembly 800 are all connected with the household water inlet pipeline through the flow meter 6 and the equipment outlet valve 7.
Specifically, the pipes of the low region water supply assembly 600, the middle region water supply assembly 700 and the high region water supply assembly 800 are further provided with a water outlet pressure sensor 8. The water outlet pressure is monitored through the water outlet pressure sensor 8, and when the water outlet pressure is lower than or exceeds a threshold value, the controller can send an alarm to the remote server through the signal transceiver to remind a worker to overhaul.
Further, the low region water supply assembly 600, the middle region water supply assembly 700 and the high region water supply assembly 800 all include a water pump inlet valve 1, a water pump 3, a check valve 4 and a water pump outlet valve 5 which are connected in sequence. The low zone water supply assembly 600, the middle zone water supply assembly 700 and the high zone water supply assembly 800 prevent the water in the pipes from flowing backwards through the check valves 4.
Furthermore, soft joints 2 are connected between the water pump inlet valve 1 and the water pump 3 and between the water pump 3 and the check valve 4.
It should be noted that, in the prior art, according to 30 stories, three zones are divided, the total pressure of 1200 households is 1200, 400 households in each zone, the required pressure of the low zone is 0.5Mpa, and the outflow probability is 3.8%, three pumps with 5.5kW are equipped; the required pressure of the middle area is 0.8Mpa, the outflow probability is 3.8 percent, and three pumps with the volume of 7.5kW are arranged; the pressure required by the high area is 1.1Mpa, the outflow probability is 3.8 percent, and three pumps with 11kW are arranged.
In this embodiment, according to a 30-storey building, 1200 households in total are divided into three areas, wherein 400 households in each area are used for calculating 1200 households in low-level equipment, the required pressure is 0.5Mpa, and the outflow probability is 2.7%, and three pumps of 7.5kW are required to be equipped; 400 households of middle area equipment need pressure of 0.8Mpa, and the outflow probability is 3%, and three pumps of 5.5kW need to be equipped; 400 households in the high area, the required pressure is 1.1Mpa, the outflow probability is 3.7 percent, and three pumps with 4kW are required to be equipped. The equipment lift is reduced by utilizing the energy superposition principle, and the pump in the lower region only needs to introduce the water in the water tank 200 into the water inlet pipeline of the house and the water supply assembly 700 in the middle region; then the water in the middle area water supply assembly 700 is pumped into the water inlet pipeline of the middle area and the water in the high area water supply assembly 800 by the pump of the middle area; and then the high-region water supply assembly 800 is pumped into the water inlet pipeline of the middle region through the high-region pump to form a relay transmission mode, so that the lifts of the middle-region pump and the high-region pump are greatly reduced, and therefore, when the middle-region pump and the high-region pump are selected, the power can be selected to be smaller, the energy consumption is reduced, and the cost is saved.
As shown in fig. 2, the present invention provides a first embodiment: and pressure maintaining tanks are arranged on the pipelines of the low region water supply assembly 600, the middle region water supply assembly 700 and the high region water supply assembly 800. The low region water supply assembly 600 pressurizes the water in the municipal tap water pipe network 100 and simultaneously supplies the water to the low region users and the middle region water supply assembly 700; the middle area water supply assembly 700 performs secondary pressurization based on the low area water supply pressure, and supplies pressurized water to the middle area users and the high area water supply assembly 800 at the same time; the high-area water supply assembly 800 is pressurized and then supplied to high-area users.
As shown in fig. 3, the present invention provides a second embodiment: a first normally-closed valve 401 is provided between the low region water supply assembly 600 and the middle region water supply assembly 700, and a second normally-closed valve 402 is provided between the middle region water supply assembly 700 and the high region water supply assembly 800, and the normal operation is the same as that of the first embodiment. Wherein, can switch through the normally closed valve, can make low district water supply assembly 600, middle district water supply assembly 700 and high district water supply assembly 800 adjust to traditional water supply mode and conveniently overhaul low district water supply assembly 600, middle district water supply assembly 700 and high district water supply assembly 800 through the normally closed valve, after low district water supply assembly 600, middle district water supply assembly 700 and high district water supply assembly 800 switch over to traditional water supply mode, low district water supply assembly 600, middle district water supply assembly 700 and high district water supply assembly 800 share a water tank 200.
As shown in fig. 4, the present invention provides a third embodiment: and pressure maintaining tanks are arranged on pipelines of the low-region water supply assembly 600 and the middle-region water supply assembly 700. The low region water supply assembly 600 pressurizes the water in the municipal tap water pipe network 100 and simultaneously supplies the water to the low region users and the middle region water supply assembly 700; the middle water supply assembly 700 performs secondary pressurization based on the low water supply pressure and supplies pressurized water to the middle users.
As shown in fig. 5, the present invention provides a fourth embodiment: a first normally-closed valve 401 is provided between the low zone water supply assembly 600 and the middle zone water supply assembly 700, and the normal operation is the same as that of the third embodiment. Wherein, can switch through the normally closed valve, can make low district water supply assembly 600 and middle district water supply assembly 700 adjust to traditional water supply mode and conveniently overhaul low district water supply assembly 600 and middle district water supply assembly 700 through the normally closed valve, after low district water supply assembly 600 and middle district water supply assembly 700 switched to traditional water supply mode, low district water supply assembly 600 and middle district water supply assembly 700 share a water tank 200.
As shown in fig. 6, the present invention provides a fifth embodiment: pressure maintaining tanks are arranged on the pipelines of the low region water supply assembly 600, the middle region water supply assembly 700 and the high region water supply assembly 800; a first steady flow tank 301 and a second steady flow tank 302 are respectively arranged on the middle area water supply assembly 700 and the high area water supply assembly 800, so that the water storage capacity is further increased; the low region water supply assembly 600 pressurizes the water in the municipal tap water pipe network 100 and simultaneously supplies the water to the low region users and the middle region water supply assembly 700; the middle area water supply assembly 700 performs secondary pressurization based on the low area water supply pressure, and supplies pressurized water to the middle area users and the high area water supply assembly 800 at the same time; the high-area water supply assembly 800 is pressurized and then supplied to high-area users.
As shown in fig. 7, the present invention provides a sixth embodiment: set up first normally closed valve 401 between low region water supply subassembly 600 and the middle region water supply subassembly 700, set up second normally closed valve 402 between middle region water supply subassembly 700 and the high region water supply subassembly 800 to be provided with first stationary flow jar 301 and second stationary flow jar 302 on middle region water supply subassembly 700 and the high region water supply subassembly 800 respectively, further increase the holding capacity, normal operating is equal with fifth implementation mode. Wherein, can switch through the normally closed valve, can make low district water supply assembly 600, middle district water supply assembly 700 and high district water supply assembly 800 adjust to traditional water supply mode and conveniently overhaul low district water supply assembly 600, middle district water supply assembly 700 and high district water supply assembly 800 through the normally closed valve, after low district water supply assembly 600, middle district water supply assembly 700 and high district water supply assembly 800 switch over to traditional water supply mode, low district water supply assembly 600, middle district water supply assembly 700 and high district water supply assembly 800 share a water tank 200.
As can be seen from the above detailed description of the present invention, the energy-saving variable frequency water supply device provided in this embodiment includes a water tank 200 connected to a municipal tap water pipe network 100, a low region water supply assembly 600, and a middle region water supply assembly 700; the low region water supply assembly 600 is connected with the water tank 200, the middle region water supply assembly 700 is connected with the steady flow compensator through the low region water supply assembly 600, and the middle region water supply assembly 700 is connected with the low region water supply assembly 600 through the first normally open valve 501; the low-region water supply assembly 600 and the middle-region water supply assembly 700 are both connected with a household water inlet pipeline; the low region water supply assembly 600 is provided with a pneumatic tank 900 on a pipe. In the using process, the middle water supply assembly 700 is supplied with water through the low water supply assembly 600, the distribution power of the equipment is reduced, and the lift of the equipment is reduced by utilizing the energy superposition principle, so that the operating cost is reduced; meanwhile, the air pressure tank 900 is arranged on the pipeline of the low-region water supply assembly 600, water is stored in the tank through external force due to the extremely low compressibility of the water, the air is compressed and pressurized, the compressed air expands to remove the water when the external force disappears, and then when a small amount of water is needed, the water can be drained through the air pressure tank 900 without opening the whole set of equipment, so that the energy-saving effect is achieved.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (10)
1. An energy-saving variable frequency water supply device, characterized by comprising: the water tank, the low-region water supply assembly and the middle-region water supply assembly are connected with a municipal tap water pipe network;
the low-region water supply assembly is connected with the water tank, and the middle-region water supply assembly is connected with the low-region water supply assembly through a first normally open valve;
the low-region water supply assembly and the middle-region water supply assembly are both connected with a household water inlet pipeline;
and the pipeline of the low-region water supply assembly is provided with an air pressure tank.
2. The energy-saving variable-frequency water supply equipment according to claim 1, further comprising a high-area water supply assembly;
one end of the high-region water supply assembly is connected with the middle-region water supply assembly through a second normally open valve; the other end is connected with the water inlet pipeline of the house.
3. The energy-saving variable-frequency water supply equipment according to claim 1, wherein a first normally-closed valve is further arranged between the low-region water supply assembly and the middle-region water supply assembly.
4. The energy-saving variable frequency water supply device according to claim 2, wherein a second normally-closed valve is further provided between the high region water supply assembly and the middle region water supply assembly.
5. The energy-saving variable frequency water supply equipment according to claim 2, wherein a first flow stabilizing tank is further arranged between the low region water supply assembly and the middle region water supply assembly;
and a second steady flow tank is also arranged between the high region water supply assembly and the middle region water supply assembly.
6. The energy-saving variable frequency water supply equipment according to claim 2, wherein pressure holding tanks are provided on the pipelines of the middle zone water supply assembly and the high zone water supply assembly.
7. The energy-saving variable frequency water supply device according to claim 2, wherein the low region water supply assembly, the middle region water supply assembly and the high region water supply assembly are connected with the household water inlet pipeline through a flow meter and a device outlet valve.
8. The energy-saving variable frequency water supply equipment according to claim 2 or 7, wherein the pipelines of the low region water supply assembly, the middle region water supply assembly and the high region water supply assembly are further provided with water outlet pressure sensors.
9. The energy-saving variable frequency water supply equipment according to claim 2, wherein the low region water supply assembly, the middle region water supply assembly and the high region water supply assembly all comprise a water pump inlet valve, a water pump, a check valve and a water pump outlet valve which are connected in sequence.
10. The energy-saving variable-frequency water supply equipment according to claim 9, wherein soft joints are connected between the water pump inlet valve and the water pump and between the water pump and the check valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920138836.6U CN209958421U (en) | 2019-01-25 | 2019-01-25 | Energy-saving frequency conversion water supply equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920138836.6U CN209958421U (en) | 2019-01-25 | 2019-01-25 | Energy-saving frequency conversion water supply equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209958421U true CN209958421U (en) | 2020-01-17 |
Family
ID=69236884
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920138836.6U Active CN209958421U (en) | 2019-01-25 | 2019-01-25 | Energy-saving frequency conversion water supply equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209958421U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113529848A (en) * | 2021-08-25 | 2021-10-22 | 上海伺水科技有限公司 | Numerical control pressure-superposed compensation type integrated non-negative pressure water supply equipment |
-
2019
- 2019-01-25 CN CN201920138836.6U patent/CN209958421U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113529848A (en) * | 2021-08-25 | 2021-10-22 | 上海伺水科技有限公司 | Numerical control pressure-superposed compensation type integrated non-negative pressure water supply equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN210104850U (en) | Fire-fighting water supply system for high-rise building | |
| CN209958421U (en) | Energy-saving frequency conversion water supply equipment | |
| CN202214764U (en) | Intelligent water supply system for ultra-high-rise building | |
| CN214094886U (en) | Constant pressure tank mode constant pressure water replenishing device | |
| CN208309701U (en) | A kind of Intelligent pipe net laminating water supply equipment with water tank | |
| CN202324069U (en) | Intelligent pipe network laminated pressure (zero negative pressure) stabilized-flow water supply equipment | |
| CN103255808B (en) | Integrated ultra-silence water supply device | |
| CN209154960U (en) | Fire fighting water system for the construction of super highrise building stage | |
| CN203866905U (en) | Non-negative pressure water supply equipment for super high-rise building | |
| CN204238295U (en) | A kind of water system of building temporary construction and water for fire fighting | |
| CN203498912U (en) | Multiple vertical joint water supply equipment | |
| CN108980506A (en) | A kind of pipeline bidirectional booster system | |
| CN219450898U (en) | Water supply system | |
| CN213653617U (en) | Multi-cavity type non-negative pressure water supply equipment | |
| CN217399794U (en) | Life water supply system | |
| CN215483311U (en) | Bidirectional compensation energy-saving water supply device | |
| CN217557071U (en) | Multi-cavity numerical control intelligent water supply equipment | |
| CN211852038U (en) | High-rise residence water supply overpressure recovery power generation system | |
| CN216616042U (en) | Self-flowing pressure-reducing partition water supply system with pump in pipe matched with high-level water tank | |
| CN209129066U (en) | A kind of three-in-one supply equipment | |
| CN214841347U (en) | Intelligent cold source economical charging and discharging pipeline system | |
| CN110565743A (en) | Integrated pressurized water supply equipment | |
| CN212052976U (en) | System for guaranteeing fire-fighting water quantity of small pump room under fire-fighting water sharing condition | |
| CN220352958U (en) | Variable-frequency water pump station | |
| CN214401970U (en) | Double-water-tank constant-pressure and constant-flow water supply system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |