CN210887423U - No negative pressure integration water supply equipment - Google Patents

No negative pressure integration water supply equipment Download PDF

Info

Publication number
CN210887423U
CN210887423U CN201921424472.4U CN201921424472U CN210887423U CN 210887423 U CN210887423 U CN 210887423U CN 201921424472 U CN201921424472 U CN 201921424472U CN 210887423 U CN210887423 U CN 210887423U
Authority
CN
China
Prior art keywords
water
water supply
opening
negative pressure
feeding pipe
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
Application number
CN201921424472.4U
Other languages
Chinese (zh)
Inventor
谭婷
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sichuan Wojia Technology Co ltd
Original Assignee
Sichuan Wojia Technology Co ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sichuan Wojia Technology Co ltd filed Critical Sichuan Wojia Technology Co ltd
Priority to CN201921424472.4U priority Critical patent/CN210887423U/en
Application granted granted Critical
Publication of CN210887423U publication Critical patent/CN210887423U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A20/00Water conservation; Efficient water supply; Efficient water use

Landscapes

  • Domestic Plumbing Installations (AREA)

Abstract

The utility model relates to a no negative pressure integration water supply equipment. The technical scheme is as follows: a non-negative pressure integrated water supply device comprises a water tank and a water supply pipeline, wherein the water tank is respectively connected with a water inlet pipe and a water outlet pipe, a plurality of boosting pipelines are connected between the water outlet pipe and the water supply pipeline, and a negative pressure suppressor is arranged on the water tank; the device is characterized by further comprising a sterilizing tank, wherein the lower end of the sterilizing tank is connected with a feeding pipe, the other end of the feeding pipe is connected with a water outlet pipe, and an opening and closing mechanism for controlling the opening and closing of the feeding pipe is installed in the feeding pipe. The utility model provides a non-negative pressure integrated water supply device which can disinfect tap water before the tap water enters the house.

Description

No negative pressure integration water supply equipment
Technical Field
The utility model belongs to the technical field of water supply equipment, concretely relates to no negative pressure integration water supply equipment.
Background
Water resources are essential important resources in people's life, and in industry and resident's life, because the energy saving, reduce energy use cost, perhaps the running water pressure is not enough leads to the water use difficulty, need adopt water supply equipment to carry out the pressure boost to water usually, reentrant user's use place.
The utility model discloses a patent application number is CN 201220532595.1's utility model discloses a through type does not have negative pressure water supply equipment, including adjusting jar, liquid level controller, negative pressure annihilator, manometer, surge tank, trunk water supply pipe and bypass delivery pipe, the bottom outlet hole of adjusting jar with the water inlet of trunk water supply pipe is connected, the surge tank with the manometer sets up on the trunk water supply pipe, the inside check valve that is provided with of trunk water supply pipe, the delivery port of trunk water supply pipe is connected with user's water pipe, the centre of bypass delivery pipe is provided with the water pump, the end of intaking of bypass delivery pipe connect in the water inlet of trunk water supply pipe with between the check valve, the play water end of bypass delivery pipe connect in the delivery port of trunk water supply pipe. The utility model discloses the water pump stop work when running water pressure is enough, the water pump starts the pressure boost when running water pressure is not enough, avoids the waste of electric energy, is favorable to energy-conservation, has prolonged the life of water supply equipment's water pump motor moreover.
However, when the tap water reaches the water supply facility, the water quality is difficult to ensure. When tap water is supplied, water is generally disinfected by a tap water plant, but after long-distance transportation, the quality of tap water may be polluted to some extent. When the water supply equipment is used for pressurizing water supply, tap water is directly fed into a user, and the quality of the tap water used by the user is difficult to guarantee.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems existing in the prior art, the utility model aims to provide a non-negative pressure integrated water supply device which can disinfect tap water before the tap water enters the house.
The utility model discloses the technical scheme who adopts does:
a non-negative pressure integrated water supply device comprises a water tank and a water supply pipeline, wherein the water tank is respectively connected with a water inlet pipe and a water outlet pipe, a plurality of boosting pipelines are connected between the water outlet pipe and the water supply pipeline, and a negative pressure suppressor is arranged on the water tank; the device is characterized by further comprising a sterilizing tank, wherein the lower end of the sterilizing tank is connected with a feeding pipe, the other end of the feeding pipe is connected with a water outlet pipe, and an opening and closing mechanism for controlling the opening and closing of the feeding pipe is installed in the feeding pipe.
Preferably, the opening and closing mechanism comprises a control sheet, one end of the control sheet is hinged in the water outlet pipe, a pull wire is connected onto the control sheet, the other end of the pull wire is connected with an opening and closing sheet, one end of the opening and closing sheet is hinged in the feeding pipe, and a return spring is connected between the upper side of the opening and closing sheet and the feeding pipe.
Preferably, a stop block is further fixed in the feeding pipe and positioned on the upper side of the opening and closing sheet.
Preferably, the inner connection part of the feeding pipe and the water outlet pipe is in smooth transition, and the pull wire is tightly pressed at the inner connection part of the feeding pipe and the water outlet pipe.
Preferably, install first butterfly valve, water pump, check valve, second butterfly valve on the pressure-rising pipeline in order, first butterfly valve is located the one end that the pressure-rising pipeline is close to the water tank.
Preferably, the water pump further comprises a variable frequency controller, and the electromagnetic switch and the negative pressure suppressor of the water pump are electrically connected with the variable frequency controller.
Preferably, one end of the water supply pipeline is provided with a pressure tank; the water supply pipeline is also provided with a pressure gauge and a water supply butterfly valve.
The utility model has the advantages that:
1. the utility model discloses an opening and shutting mechanism can open the conveying pipe to a certain extent, and then in the disinfectant in the disinfection jar can follow the outlet pipe that the conveying pipe flowed into the water tank, the running water was disinfected. When the water supply equipment is used for pressurizing water supply, tap water is disinfected, the quality of the tap water is guaranteed, and the problem that the quality of the tap water is reduced after the tap water is conveyed for a long distance is solved.
2. When water in the water tank flows through the water outlet pipe, the control sheet is automatically opened under the impact of the water flow. The control sheet pulls the pull wire, the pull wire pulls the opening and closing sheet to open, then the disinfectant in the disinfection tank can flow into the water outlet pipe from the feeding pipe, and then tap water is automatically disinfected. When no water flows through the water outlet pipe, the return spring pulls the opening and closing sheet, the opening and closing sheet closes the feeding pipe, and disinfectant is prevented from continuously flowing into the water outlet pipe. The opening and closing size of the opening and closing sheet is in direct proportion to the water flow speed, so that tap water can be uniformly disinfected. The opening and closing of the opening and closing sheet do not need manual operation, and the use is convenient.
3. The dog can block the retractable sheet, avoids return spring to open the retractable sheet to the upper side, guarantees that the retractable sheet is closed accurately with the conveying pipe after return spring pulls the retractable sheet back. When the opening and closing piece is closed, the disinfectant can not flow to the outlet pipe from the conveying pipe, the disinfectant is avoided being wasted, and the situation that the concentration of the disinfectant in water is uneven when water is supplied due to the fact that a large number of disinfectants are deposited in the outlet pipe is avoided.
4. The smooth transition of the internal connection part of the feeding pipe and the water outlet pipe ensures that the stay wire can not be cut off when sliding at the internal connection part of the feeding pipe and the water outlet pipe, thereby ensuring that the stay wire can be used for a long time.
5. The water pump can pump the running water into the water supply pipeline to supply water to each user, and the condition that the running water cannot be supplied to each user when the water pressure is insufficient is avoided. First butterfly valve and second butterfly valve can be used to control the break-make of pipeline that steps up, and the check valve can avoid the running water refluence, guarantees the utility model discloses normally supply water.
6. The variable frequency controller can automatically control the electromagnetic switch of the water pump, and the water pressure in the water supply equipment is ensured to be stable. The variable frequency controller controls the negative pressure suppressor, so that negative pressure generated in the water tank is avoided, and normal water supply of the water supply equipment is ensured.
7. When the pressure tank is used at night, the pressure tank is opened to supply small-flow water at night, so that the aims of saving energy and reducing consumption are fulfilled. The pressure gauge arranged on the water supply pipeline can display the water pressure of the water supply pipeline in real time, and the water pressure can be conveniently monitored and controlled in real time. The water supply butterfly valve can control the on-off of the water supply pipeline, and the water supply pipeline can be closed in time conveniently when water is polluted or under other conditions.
The advantages of the invention are not limited to the description, but rather are described in greater detail in the detailed description for better understanding.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
It will be appreciated by those skilled in the art that the objects and advantages that can be achieved with the present invention are not limited to the details set forth above, and that these and other objects that can be achieved with the present invention will be more clearly understood from the following detailed description.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or 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 diagram of the present invention;
FIG. 2 is a partial block diagram of the present invention;
fig. 3 is a schematic diagram of the structure of the booster circuit.
In the figure: 1-a water tank; 2-water supply pipeline; 3-a pressure boosting pipeline; 4-a disinfection tank; 5-a feeding pipe; 6-an opening and closing mechanism; 7-a variable frequency controller; 11-a water inlet pipe; 12-a water outlet pipe; 13-a negative pressure suppressor; 21-pressure tank; 22-pressure gauge; 23-water supply butterfly valve; 31-a first butterfly valve; 32-a water pump; 33-a check valve; 34-a second butterfly valve; 51-a stopper; 61-control sheet; 62-a pull line; 63-opening and closing sheets; 64-return spring.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be 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 according to specific situations by those skilled in the art.
Example 1:
as shown in fig. 1 and 2, the utility model comprises a water tank 1 and a water supply pipeline 2, wherein the water tank 1 is respectively connected with a water inlet pipe 11 and a water outlet pipe 12, a plurality of boosting pipelines 3 are connected between the water outlet pipe 12 and the water supply pipeline 2, and a negative pressure suppressor 13 is arranged on the water tank 1; the utility model discloses still include disinfection jar 4, disinfection jar 4's lower extreme is connected with conveying pipe 5, and conveying pipe 5's the other end and outlet pipe 12 are connected, install in the conveying pipe 5 and be used for controlling the opening and shutting mechanism 6 of conveying pipe 5 size of opening and shutting.
The utility model discloses an opening and shutting mechanism 6 can open conveying pipe 5 to a certain extent, then the disinfectant in disinfection jar 4 can be followed conveying pipe 5 and flowed into in water tank 1's outlet pipe 12, and the running water is disinfected. When the water supply equipment is used for pressurizing water supply, tap water is disinfected, the quality of the tap water is guaranteed, and the problem that the quality of the tap water is reduced after the tap water is conveyed for a long distance is solved.
Furthermore, the opening and closing mechanism 6 comprises a control sheet 61, one end of the control sheet 61 is hinged in the water outlet pipe 12, the control sheet 61 is connected with a pull wire 62, the other end of the pull wire 62 is connected with an opening and closing sheet 63, one end of the opening and closing sheet 63 is hinged in the feeding pipe 5, and a return spring 64 is connected between the upper side of the opening and closing sheet 63 and the feeding pipe 5.
When water in the water tank 1 flows through the water outlet pipe 12, the control sheet 61 is automatically opened under the impact of the water flow. The control sheet 61 pulls the pull wire 62, the pull wire 62 pulls the opening and closing sheet 63 to open, the disinfectant in the disinfection tank 4 can flow into the water outlet pipe 12 from the feeding pipe 5, and tap water is automatically disinfected. When no water flows through the water outlet pipe 12, the return spring 64 pulls the opening and closing sheet 63 up, the opening and closing sheet 63 closes the feeding pipe 5, and the disinfectant is prevented from continuously flowing into the water outlet pipe 12. The opening and closing size of the opening and closing sheet 63 is in direct proportion to the water flow speed, and therefore the tap water can be evenly disinfected. The opening and closing of the opening and closing sheet 63 do not need manual operation, and the use is convenient.
Furthermore, a stopper 51 is fixed in the feeding pipe 5, and the stopper 51 is positioned above the opening and closing piece 63. The stop block 51 can stop the opening and closing sheet 63, so that the opening and closing sheet 63 is prevented from being opened upwards by the return spring 64, and the opening and closing sheet 63 is ensured to accurately close the feeding pipe 5 after the opening and closing sheet 63 is pulled back by the return spring 64. When the opening and closing sheet 63 is closed, the disinfectant can not flow to the water outlet pipe 12 from the feeding pipe 5, so that the disinfectant is prevented from being wasted, and the condition that the concentration of the disinfectant in water is uneven when water is supplied due to the fact that a large number of disinfectant are deposited in the water outlet pipe 12 is avoided.
Furthermore, the internal connection part of the feeding pipe 5 and the water outlet pipe 12 is in smooth transition, and the stay wire is tightly pressed at the internal connection part of the feeding pipe and the water outlet pipe. The smooth transition of the internal connection part of the feeding pipe 5 and the water outlet pipe 12 ensures that the stay wire 62 can not be cut off when sliding at the internal connection part of the feeding pipe 5 and the water outlet pipe 12, thereby ensuring that the stay wire 62 can be used for a long time.
Example 2:
as shown in fig. 1 and 3, in embodiment 1, a first butterfly valve 31, a water pump 32, a check valve 33, and a second butterfly valve 34 are sequentially attached to the pressure-increasing line 3, and the first butterfly valve 31 is located at one end of the pressure-increasing line 3 close to the tank 1. The water pump 32 can pump the tap water into the water supply pipeline 2 and supply water to each user, thereby avoiding the situation that the tap water cannot be supplied to each user when the water pressure is insufficient. First butterfly valve 31 and second butterfly valve 34 can be used to control the break-make of pipeline 3 that steps up, and check valve 33 can avoid the running water refluence, guarantees the utility model discloses normally supply water.
Furthermore, the utility model discloses still include frequency conversion controller 7, the electromagnetic switch and the negative pressure inhibitor 13 of water pump 32 all are connected with frequency conversion controller 7 electricity. The variable frequency controller 7 can automatically control the electromagnetic switch of the water pump 32, and the water pressure in the water supply equipment is ensured to be stable. The variable frequency controller 7 controls the negative pressure suppressor 13 to avoid negative pressure generated in the water tank 1 and ensure normal water supply of the water supply equipment.
Furthermore, one end of the water supply pipeline 2 is provided with a pressure tank 21; the water supply pipeline 2 is also provided with a pressure gauge 22 and a water supply butterfly valve 23. When the pressure tank is used at night, the pressure tank 21 is opened to supply small-flow water at night, so that the aims of saving energy and reducing consumption are fulfilled. The pressure gauge 22 arranged on the water supply pipeline 2 can display the water pressure of the water supply pipeline 2 in real time, and the water pressure can be monitored and controlled in real time conveniently. The water supply butterfly valve 23 can control the on-off of the water supply pipeline 2, and is convenient for closing the water supply pipeline 2 in time when water is polluted or under other conditions.
The working principle is as follows:
when the first butterfly valve 31, the water pump 32, the check valve 33 and the second butterfly valve 34 on the pressure-increasing pipeline 3 are opened and the water supply butterfly valve 23 is opened, tap water is supplied to each user through the water inlet pipe 11, the water tank 1, the water outlet pipe 12, the pressure-increasing pipeline 3 and the water supply pipeline 2. The variable frequency controller 7 automatically controls an electromagnetic switch of the water pump 32 and the negative pressure suppressor 13 to ensure the stability of the water pressure. When the pressure tank is used at night, the pressure tank 21 is opened to supply small-flow water at night, so that the aims of saving energy and reducing consumption are fulfilled.
When water flows through the outlet pipe 12 of the water tank 1, the control piece 61 is flushed by the water flow. The control sheet 61 pulls the pull wire 62, the pull wire 62 pulls the opening and closing sheet 63 to open, the disinfectant in the disinfection tank 4 can flow into the water outlet pipe 12 from the feeding pipe 5, and tap water is automatically disinfected. When no water flows through the water outlet pipe 12, the return spring 64 pulls the opening and closing sheet 63 up, the opening and closing sheet 63 closes the feeding pipe 5, and the disinfectant is prevented from continuously flowing into the water outlet pipe 12. The opening and closing size of the opening and closing sheet 63 is in direct proportion to the water flow speed, and therefore the tap water can be evenly disinfected. The opening and closing of the opening and closing sheet 63 do not need manual operation, and the use is convenient. The stop block 51 can stop the opening and closing sheet 63, so that the opening and closing sheet 63 is prevented from being opened upwards by the return spring 64, and the opening and closing sheet 63 is ensured to accurately close the feeding pipe 5 after the opening and closing sheet 63 is pulled back by the return spring 64. When the opening and closing sheet 63 is closed, the disinfectant can not flow to the water outlet pipe 12 from the feeding pipe 5, so that the disinfectant is prevented from being wasted, and the condition that the concentration of the disinfectant in water is uneven when water is supplied due to the fact that a large number of disinfectant are deposited in the water outlet pipe 12 is avoided.
The present invention is not limited to the above-mentioned optional embodiments, and any other products in various forms can be obtained by anyone under the teaching of the present invention, and any changes in the shape or structure thereof, all the technical solutions falling within the scope of the present invention, are within the protection scope of the present invention.

Claims (7)

1. A non-negative pressure integrated water supply device comprises a water tank (1) and a water supply pipeline (2), wherein the water tank (1) is respectively connected with a water inlet pipe (11) and a water outlet pipe (12), a plurality of boosting pipelines (3) are connected between the water outlet pipe (12) and the water supply pipeline (2), and a negative pressure suppressor (13) is installed on the water tank (1); the method is characterized in that: the device is characterized by further comprising a sterilizing tank (4), wherein the lower end of the sterilizing tank (4) is connected with a feeding pipe (5), the other end of the feeding pipe (5) is connected with a water outlet pipe (12), and an opening and closing mechanism (6) for controlling the opening and closing size of the feeding pipe (5) is installed in the feeding pipe (5).
2. The non-negative pressure integrated water supply equipment according to claim 1, wherein: the opening and closing mechanism (6) comprises a control sheet (61), one end of the control sheet (61) is hinged into the water outlet pipe (12), a pull wire (62) is connected onto the control sheet (61), the other end of the pull wire (62) is connected with an opening and closing sheet (63), one end of the opening and closing sheet (63) is hinged into the feeding pipe (5), and a return spring (64) is connected between the upper side of the opening and closing sheet (63) and the feeding pipe (5).
3. The non-negative pressure integrated water supply equipment according to claim 2, wherein: a stop block (51) is further fixed in the feeding pipe (5), and the stop block (51) is positioned on the upper side of the opening and closing sheet (63).
4. The non-negative pressure integrated water supply equipment according to claim 2, wherein: the inner connection part of the feeding pipe (5) and the water outlet pipe (12) is in smooth transition.
5. The non-negative pressure integrated water supply equipment according to claim 1, wherein: install first butterfly valve (31), water pump (32), check valve (33), second butterfly valve (34) in order on pipeline (3) steps up, first butterfly valve (31) are located pipeline (3) that steps up and are close to the one end of water tank (1).
6. The non-negative pressure integrated water supply equipment according to claim 5, wherein: the water pump further comprises a variable frequency controller (7), and an electromagnetic switch of the water pump (32) and the negative pressure suppressor (13) are electrically connected with the variable frequency controller (7).
7. The non-negative-pressure integrated water supply equipment according to any one of claims 1 to 6, characterized in that: one end of the water supply pipeline (2) is provided with a pressure tank (21); the water supply pipeline (2) is also provided with a pressure gauge (22) and a water supply butterfly valve (23).
CN201921424472.4U 2019-08-29 2019-08-29 No negative pressure integration water supply equipment Active CN210887423U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201921424472.4U CN210887423U (en) 2019-08-29 2019-08-29 No negative pressure integration water supply equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201921424472.4U CN210887423U (en) 2019-08-29 2019-08-29 No negative pressure integration water supply equipment

Publications (1)

Publication Number Publication Date
CN210887423U true CN210887423U (en) 2020-06-30

Family

ID=71333853

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201921424472.4U Active CN210887423U (en) 2019-08-29 2019-08-29 No negative pressure integration water supply equipment

Country Status (1)

Country Link
CN (1) CN210887423U (en)

Similar Documents

Publication Publication Date Title
CN204456269U (en) A kind of energy saving water supply with warning function is without negative pressure line
CN207776007U (en) A kind of non-negative pressure water-supply installation
CN205314168U (en) Pump water supply installation in box no negative pressure silence pipe of intelligent regulation water tank water demand
CN204023720U (en) A kind of without negative pressure bidirectional offset-type automatic energy saving supply equipment
CN200971526Y (en) Non-negative water supply equipment for spare water of water tank
CN203741932U (en) Secondary water supply system for pipe network overlying self-supply water tank
CN201850583U (en) Tank-type laminated water supply equipment
CN203452130U (en) Non-negative-pressure secondary water supply system
CN210887423U (en) No negative pressure integration water supply equipment
CN208309701U (en) A kind of Intelligent pipe net laminating water supply equipment with water tank
CN206829258U (en) A kind of living water equipment with supercharging pressure holding function
CN104727388A (en) Network pressure superposition based secondary water supply system with self-contained water reservoir
CN201125416Y (en) High position water-storing tank water supply system without negative pressure
CN104594441B (en) A kind of energy saving water supply is without negative pressure line
CN205000412U (en) Intelligent double mode pipe network pressure -superposed water supply equipment
CN204023705U (en) A kind of steady flow compensation type full-automatic energy-saving laminating water supply equipment
CN200946293Y (en) Large-scale negative pressure-free water supply installation
CN202248085U (en) Intelligent efficient energy-saving water supply system
CN206233308U (en) Terminal pressure estimates formula non-negative pressure water-supply installation
CN211523366U (en) Double-cavity non-negative pressure water supply equipment
CN206512776U (en) A kind of non-negative pressure water-supply installation with flow controller
CN207003560U (en) Can the non-negative pressure unitized supply equipment of stream storage benefit
CN204326170U (en) A kind of bidirectional compensating formula totally-enclosed non-negative pressure water-supply installation
CN208737315U (en) A kind of water purifier condensed water recycles control system and recycle device
CN209763502U (en) Electric water heater

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant