CN204715468U - A kind of Intelligent silent constant pressure water supply equipment - Google Patents

Abstract

The utility model provides a self-component that will not pollute the water quality, has a high degree of intelligence, can automatically adjust the output pressure according to the pressure, is energy-saving and environmentally friendly, and has low noise during operation, can prevent backflow of the water body, and can also realize remote control of intelligent silent frequency conversion Constant pressure water supply equipment. It includes tap water inlet, first pressure sensor, first butterfly valve, second pressure sensor, second butterfly valve, water pump, check valve, fourth butterfly valve, air pressure tank, third pressure sensor, frequency conversion control cabinet, backflow preventer and remote Control terminal; the tap water inlet passes through the first butterfly valve and then connected to the second butterfly valve, water pump, check valve and third butterfly valve in turn; the water pumps are Italian U-FLO silent in-line pumps with built-in American Franklin motors; the first pressure sensor, The second pressure sensor, the water pump and the third pressure sensor are all electrically connected to the frequency conversion control cabinet; the frequency conversion control cabinet is an integrated cabinet structure with a processor and a touch screen and can be remotely controlled.

Description

An intelligent silent frequency conversion constant pressure water supply equipment

technical field

The utility model relates to a water supply equipment, in particular to an intelligent silent frequency conversion constant pressure water supply equipment.

Background technique

Modern high-rise buildings have higher and higher requirements for municipal water supply pressure. However, if the urban water supply pressure is too high, it will cause some old pipes to burst, causing problems in the entire urban water supply system. Now there are many high-rise buildings, the demand for constant pressure water supply equipment is increasing, and the requirements are also getting higher and higher.

Constant pressure water supply equipment, in fact, is what we often call non-negative pressure frequency conversion water supply equipment, also known as frequency conversion non-negative pressure water supply equipment. According to the information of the "Water Supply Equipment Promotion Center", it breaks through the misunderstanding that it can only pressurize unpressurized water in the past, and ensures the limited pressurization of the equipment through the control of the fluid flow state. No pressure impact on the pipe network. Installing pipe network superimposed water supply equipment in the front section of the user can solve the problem that tap water cannot be delivered to users due to the pressure limit of the pipe network, and meet the needs of remote high-lying users. The water transmission and distribution network is an important part of the urban water supply system. It is responsible for the task of transporting and distributing water to users to meet the needs of users for water quality and water pressure. Due to the wide distribution of the water supply network, long distances, and high demand for raw materials, it accounts for a relatively high proportion of investment in the water supply system, and plays an insignificant role in the total investment in the tower-free water supply equipment. In the process of water transmission and distribution, a lot of energy is consumed. 90% of the energy consumption of the water supply company is used for the hydraulic upgrading of the primary and secondary pumping stations, and this energy consumption accounts for 30%-40% of the cost of water production. The operation status of the water distribution pipe network directly affects the water supply pressure and water volume, and affects the service quality. Therefore, the water transmission and distribution network occupies an important position in the water supply system.

The inventor of this patent application has found through long-term practice that the constant pressure water supply equipment in the prior art has the following disadvantages in actual use: 1. The pipe material is easy to rust, and the water quality will be polluted by the equipment. 2. The intelligence of the equipment is not enough, and the controllability is poor. 3. The equipment cannot adjust the output of the water pump by itself according to the pressure, so too much power is wasted. 4. The equipment is too noisy during operation, causing noise pollution to the surrounding environment. 5. It cannot prevent the water from flowing back from the equipment back into the water main. 6. Remote control cannot be realized.

Utility model content

The technical problem to be solved by the utility model is to provide a self-component that will not pollute the water quality, has a high degree of intelligence, can automatically adjust the output pressure according to the pressure, is energy-saving and environmentally friendly, and has low noise during operation, which can prevent the backflow of the water body and realize Intelligent remote control silent frequency conversion constant pressure water supply equipment.

In order to solve the above technical problems, the technical solution provided by the utility model is: an intelligent silent frequency conversion constant pressure water supply equipment, which includes a tap water inlet, a first pressure sensor, a first butterfly valve, a backflow preventer, a second pressure sensor, a second Butterfly valve, water pump, check valve, fourth butterfly valve, air pressure tank, third pressure sensor, frequency conversion control cabinet, main water outlet and remote control terminal; the tap water inlet is connected with the second butterfly valve and water pump in sequence after passing through the first butterfly valve , check valve and the third butterfly valve; the third butterfly valve is connected with the pressure tank; the third butterfly valve is connected with the main water outlet at the same time; the second butterfly valve, the water pump, the check valve and the third butterfly valve constitute a water pump unit; The constant pressure water supply equipment includes at least two sets of water pump units connected side by side; the water pumps used in the water pump units are all Italian U-FLO silent in-line pumps with built-in American Franklin motors; the first pressure sensor is installed in The tap water inlet; the second pressure sensor is installed at the water inlet of the second butterfly valve; the third pressure sensor is installed at the total water outlet; the first pressure sensor, the second pressure sensor, the water pump and The third pressure sensors are all electrically connected to the frequency conversion control cabinet; the frequency conversion control cabinet is an integrated cabinet structure with a processor and a touch screen; the remote control terminal is wirelessly connected to the frequency conversion control cabinet; The backflow preventer is installed on the pipe at the tap water inlet; the parts in contact with the water body of the above-mentioned components are all made of food-grade stainless steel SUS304.

As a preference, a drain valve is also provided at the tap water inlet.

Preferably, a filter is connected after the water outlet of the first butterfly valve; a fourth butterfly valve is connected after the outlet of the filter.

Preferably, it also includes a unit foundation, said water pump units are four, and the four water pump units are installed side by side on the unit foundation, and said unit foundation is a cement platform with a length of 2.2 meters, a width of 1 meter and a height of 0.5 meters.

Preferably, it also includes a flow metering device, the flow metering device is installed on the pipeline where the main water outlet is located; the flow metering device is electrically connected with the frequency conversion control cabinet.

Preferably, it also includes a main water outlet valve, the said main water outlet valve is installed on the pipeline where the main water outlet is located; a drain valve is also installed at the water inlet pipe of the said main water outlet valve.

Preferably, the backflow preventer is installed between the filter and the fourth butterfly valve; a soft joint is connected to the outlet of the backflow preventer, and the soft joint is connected to the fourth butterfly valve.

Preferably, the remote control terminal is a smart phone.

After adopting the above structure, the utility model has the following beneficial effects: 1. The tap water of purified water is directly supplied to the user after being pressurized by the equipment. It is made of food-grade stainless steel SUS304, sealed and connected, and the tap water is completely isolated from the air. The water source has no pollution. , the water quality is good, and users can drink drinking water that meets hygienic standards. 2. The intelligent control cabinet with touch screen is adopted, and the efficiency of human-computer interaction is higher. 3. It can make full use of the original pressure of the tap water pipeline, how much the difference is, and how much to make up. When the tap water meets the requirements, the equipment will stop working, frequency conversion control, and the energy saving effect is extremely significant. 4. The water pumps adopt the most advanced silent design, and there is basically no noise when the water pump is working. 5. A backflow preventer is installed at the main water inlet, which can well prevent water from flowing back from the equipment back into the main pipe of tap water. 6. Equipped with a remote control terminal, users can better realize remote control and supervision of the equipment.

To sum up, the utility model provides a kind of self-components that will not pollute the water quality, has a high degree of intelligence, can automatically adjust the output pressure according to the pressure, is energy-saving and environmentally friendly, and has low noise during operation, which can prevent the backflow of the water body and realize remote control. Controlled intelligent silent frequency conversion constant pressure water supply equipment.

Description of drawings

Fig. 1 is a structural schematic diagram of the intelligent silent frequency conversion constant pressure water supply equipment in the utility model.

As shown in the figure: 1. Tap water inlet, 2. Drain valve, 3. The first pressure sensor, 4. The first butterfly valve, 5. Filter, 6. Backflow preventer, 7. Soft joint, 8. The fourth butterfly valve, 9. The second pressure sensor, 10. The second butterfly valve, 11. Water pump, 12. Check valve, 13. The third butterfly valve, 14. Air pressure tank, 15. Flow metering device, 16. The third pressure sensor, 17. Water valve, 18, frequency conversion control cabinet, 19, main water outlet, 20, main water outlet valve, 21, remote control terminal.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is described in further detail.

In conjunction with accompanying drawing 1, an intelligent silent frequency conversion constant pressure water supply equipment, which includes a tap water inlet 1, a first pressure sensor 3, a first butterfly valve 4, a backflow preventer 6, a second pressure sensor 9, a second butterfly valve 10, and a water pump 11 , check valve 12, fourth butterfly valve 13, air pressure tank 14, third pressure sensor 16, frequency conversion control cabinet 18, main water outlet 19 and remote control terminal 21; said tap water inlet 1 is connected sequentially after passing through the first butterfly valve 4 There are a second butterfly valve 10, a water pump 11, a check valve 12 and a third butterfly valve 13; the third butterfly valve 13 is connected to the air tank 14; the third butterfly valve 13 is connected to the main water outlet 19 at the same time; the second butterfly valve 10, the water pump 11. The check valve 12 and the third butterfly valve 13 form a water pump unit; the constant pressure water supply equipment includes at least two sets of water pump units connected side by side; the water pumps 11 used in the water pump unit are built-in American Franklin motors Italian U-FLO silent in-line pump; the first pressure sensor 3 is installed at the tap water inlet 1; the second pressure sensor 9 is installed at the water inlet of the second butterfly valve 10; the third pressure The sensor 16 is installed at the total water outlet 19; the first pressure sensor 3, the second pressure sensor 9, the water pump 11 and the third pressure sensor 16 are all electrically connected with the frequency conversion control cabinet 18; the frequency conversion control cabinet 18 is An integrated cabinet structure with a processor and a touch screen; the remote control terminal 21 is wirelessly connected to the frequency conversion control cabinet 18; the backflow preventer 6 is installed on the pipeline at the tap water inlet 1; the above-mentioned components The parts in contact with the neutral water body are all made of food-grade stainless steel SUS304.

As a preference, a drain valve is also provided at the tap water inlet.

Preferably, a filter is connected after the water outlet of the first butterfly valve; a fourth butterfly valve is connected after the outlet of the filter.

Preferably, it also includes a unit foundation, said water pump units are four, and the four water pump units are installed side by side on the unit foundation, and said unit foundation is a cement platform with a length of 2.2 meters, a width of 1 meter and a height of 0.5 meters.

Preferably, it also includes a flow metering device, the flow metering device is installed on the pipeline where the main water outlet is located; the flow metering device is electrically connected with the frequency conversion control cabinet.

Preferably, it also includes a main water outlet valve, the said main water outlet valve is installed on the pipeline where the main water outlet is located; a drain valve is also installed at the water inlet pipe of the said main water outlet valve.

As a preference, the backflow preventer 6 is installed between the filter 5 and the fourth butterfly valve 8; the outlet of the backflow preventer 6 is also connected with a soft joint 7, and the soft joint 7 is connected to the fourth butterfly valve 8 connected.

Preferably, the remote control terminal 21 is a smart phone.

After adopting the above structure, the utility model has the following beneficial effects: 1. The tap water of purified water is directly supplied to the user after being pressurized by the equipment. It is made of food-grade stainless steel SUS304, sealed and connected, and the tap water is completely isolated from the air. The water source has no pollution. , the water quality is good, and users can drink drinking water that meets hygienic standards. 2. The intelligent control cabinet with touch screen is adopted, and the efficiency of human-computer interaction is higher. 3. It can make full use of the original pressure of the tap water pipeline, how much the difference is, and how much to make up. When the tap water meets the requirements, the equipment will stop working, frequency conversion control, and the energy saving effect is extremely significant. 4. The water pumps adopt the most advanced silent design, and there is basically no noise when the water pump is working. 5. A backflow preventer is installed at the main water inlet, which can well prevent water from flowing back from the equipment back into the main pipe of tap water. 6. Equipped with a remote control terminal, users can better realize remote control and supervision of the equipment.

To sum up, the utility model provides a kind of self-components that will not pollute the water quality, has a high degree of intelligence, can automatically adjust the output pressure according to the pressure, is energy-saving and environmentally friendly, and has low noise during operation, which can prevent the backflow of the water body and realize remote control. Controlled intelligent silent frequency conversion constant pressure water supply equipment.

The utility model also has the following characteristics during concrete implementation:

1. The total investment is saved by superimposing the pipe network: no need to build a pool or set up a water tank, and it is directly connected to the tap water pipe to pressurize the water supply, which can make full use of the original pressure of the tap water. Example of water pump selection: the original pump needs to use 70 meters head, now only Just use 50 meters.

2. Pure water quality: The tap water of pure water is directly supplied to the user after being pressurized by the equipment. It is made of food-grade stainless steel SUS304, sealed and connected, and the tap water is completely isolated from the air. Hygienic standard drinking water is controlled by microcomputer frequency conversion soft start and constant pressure, so the water supply pressure is stable and the water pressure is stable.

3. Water saving: The fully enclosed structure eliminates running, leaking, dripping, leaking, and seepage, plus regular cleaning, disinfection, and other waste of water resources. It is directly connected to the tap water pipeline.

4. Power saving: The original pressure of the tap water pipeline can be fully utilized, how much is the difference, and how much to make up. When the tap water meets the requirements, the equipment will stop working, and the energy saving effect is extremely significant.

5. Save land and save installation hours: no need to build a pool, no need to install a water tank, the complete set of equipment leaves the factory, and after arriving at the site, the user's tap water inlet pipe and outlet pipe can be directly connected to the equipment, the construction is simple, the construction period is short, and the land occupation The area is small.

6. Save manpower and material resources: the water quality of this equipment is not polluted, and there is no need to install disinfection equipment, which further saves investment. Very economical to use. Because there is no pool or water tank, the cost of regular cleaning and disinfection is saved.

The flow calculation of the equipment is as follows: The flow design of the equipment complies with the provisions of the current "Code for Design of Water Supply and Drainage for Buildings" GB50015. Pressure calculation: The design pressure of the equipment can meet the pressure required at the most unfavorable water distribution point of the water supply.

(1) The calculation of the design flow rate of the water supply system complies with the provisions of the current "Code for Design of Water Supply for Buildings" GB50015. The flow rate of the water pump suction pipe should not exceed 1.5M/S.

(2) The design pressure value of the water supply system is calculated according to the following formula:

Ps=P4+P5+P6

In the formula:

Ps - design pressure value of water supply system (Mpa);

P4--The geometric height difference between the elevation of the water pump outlet and the most unfavorable water supply, and the elevation of the water distribution point (converted from m to Mpa);

P5--The water head loss and local head loss along the pipeline from the outlet of the water pump to the most unfavorable water distribution point of the water supply (m converted to Mpa);

P6--The minimum water supply pressure value that should be guaranteed at the most unfavorable water distribution point (m converted to Mpa).

(3) The pressure value at the front of the total water inlet valve of the equipment is calculated according to the following formula:

Pj=P7-P8-P9-P10

In the formula:

Pj--the pressure value at the front of the total water inlet valve of the equipment (Mpa);

P7--The water supply pressure value (Mpa) of the municipal water supply pipeline provided by the water supply company;

P8--The pressure reduction value (0.02Mpa) allowed to be generated at the suction point of the municipal water supply pipe network when the equipment is in normal operation;

P9--The water head loss along the pipeline and local water head loss from the entrance of the municipal water supply pipeline to the front of the main water inlet valve of the equipment (m is converted into Mpa).

P10--The geometric height difference between the elevation where the pressure sensor PJ is installed in front of the general water inlet valve of the equipment and the elevation where the municipal water supply pipe is connected (converted from m to Mpa).

(4) The actual available water supply pressure value at the water pump suction port should be calculated according to the following formula

Pk=Pj-P11-P12-P13

Pk--The actual available water supply pressure value (Mpa) at the water pump suction port.

P11--The geometric height difference between the pressure sensor (P2) at the suction port of the pump and the pressure sensor (P1) in front of the water inlet valve of the equipment is (Mpa);

P12--The total water head loss value (Mpa) of the pipeline, filter, backflow preventer, etc. between the general water inlet valve of the equipment and the water pump suction port;

P13--The increased value of filter head loss allowed by the normal operation of the equipment (0.01Mpa).

(5) The calculated value of the pump head should be calculated according to the following formula:

Type 1 and Type 2 pipe networks are stacked according to P14=Ps-Pk

Type 3 box-type pipe network superimposed main pump according to P14=Ps-Pk, small pump according to P14=Ps

In the formula:

P14--The calculated value of pump head (m is converted to Mpa).

Water pump configuration requirements:

A Centrifugal pump with low noise, high efficiency, energy saving, flow-lift curve without hump;

B. One standby pump shall be installed, and the water supply capacity of the standby pump shall not be less than the water supply capacity of the largest working pump;

The flow part of the C water pump should be made of materials that meet hygienic standards;

D When there is a higher requirement for anti-noise, a water-cooled water pump can be used.

The specification and number of E water pumps should be comprehensively determined by the design. When the water consumption is unbalanced and lasts for a long time, it is advisable to configure a small water pump suitable for low water consumption. The flow rate of the small water pump can be 1/3 to 1/3 of the working pump flow. 2.

F When the water pressure of the water supply pipe network changes little, the water pump selection of the pipe network superimposed water supply equipment should make the maximum efficient area of the water pump be the water supply design flow.

G When the water pressure of the water supply pipe network changes greatly, the selection of the water pump should make the working point of the water pump at the rated speed be located inside the high efficiency area of the water pump.

The utility model and its implementations have been described above, but the description is not restrictive. What is shown in the drawings is only one of the implementations of the utility model, and the actual structure is not limited thereto. All in all, if a person of ordinary skill in the art is inspired by it, without departing from the purpose of the utility model, without creatively designing a structural method and embodiment similar to the technical solution, it shall be protected by the utility model scope.

Claims (8)

1. An intelligent silent frequency conversion constant pressure water supply equipment, characterized in that it includes a tap water inlet (1), a first pressure sensor (3), a first butterfly valve (4), a backflow preventer (6), and a second pressure sensor (9), second butterfly valve (10), water pump (11), check valve (12), fourth butterfly valve (13), air pressure tank (14), third pressure sensor (16), frequency conversion control cabinet (18) , total water outlet (19) and remote control terminal (21); described tap water inlet (1) is connected with second butterfly valve (10), water pump (11), check valve ( 12) and the third butterfly valve (13); the third butterfly valve (13) links to each other with the air pressure tank (14); the third butterfly valve (13) links to each other with the total water outlet (19) simultaneously; the second butterfly valve (10), Water pump (11), check valve (12) and the 3rd butterfly valve (13) form a water pump unit; Described constant pressure water supply equipment comprises at least two groups of water pump units connected side by side; Water pump ( 11) All are Italian U-FL0 silent in-line pumps with built-in American Franklin motors; the first pressure sensor (3) is installed at the tap water inlet (1); the second pressure sensor (9) is installed at At the water inlet of the second butterfly valve (10); the third pressure sensor (16) is installed at the total water outlet (19); the first pressure sensor (3), the second pressure sensor (9), The water pump (11) and the third pressure sensor (16) are all electrically connected with the frequency conversion control cabinet (18); the frequency conversion control cabinet (18) is an integrated cabinet structure with a processor and a touch screen; The remote control terminal (21) is wirelessly connected with the frequency conversion control cabinet (18); the backflow preventer (6) is installed on the pipeline at the tap water inlet (1); all parts in contact with the water body in the above components are made of food grade Stainless steel SUS304 material. 2. The intelligent silent frequency conversion constant pressure water supply equipment according to claim 1, characterized in that: the tap water inlet (1) is also provided with a drain valve (2). 3. The intelligent silent frequency conversion constant pressure water supply equipment according to claim 1, characterized in that: a filter (5) is connected behind the water outlet of the first butterfly valve (4); the filter (5) The fourth butterfly valve (8) is connected behind the outlet of the outlet. 4. The intelligent silent frequency conversion constant pressure water supply equipment according to claim 1, characterized in that it also includes a unit foundation, the number of said water pump units is four, and the four water pump units are installed side by side on the unit foundation, and said The foundation of the unit is a cement platform with a length of 2.2 meters, a width of 1 meter and a height of 0.5 meters. 5. The intelligent silent frequency conversion constant pressure water supply equipment according to claim 1, characterized in that it also includes a flow metering device (15), and the flow metering device (15) is installed at the place where the main water outlet (19) is located. On the pipeline; the flow metering device (15) is electrically connected with the frequency conversion control cabinet (18). 6. The intelligent silent frequency conversion constant pressure water supply equipment according to claim 1, characterized in that it also includes a main water outlet valve (20), and the said main water outlet valve (20) is installed at the place where the main water outlet (19) is located. On the pipeline; a drain valve (17) is also installed at the water inlet pipeline of the total outlet valve (20). 7. The intelligent silent frequency conversion constant pressure water supply equipment according to claim 3, characterized in that: the backflow preventer (6) is installed between the filter (5) and the fourth butterfly valve (8); A soft joint (7) is also connected to the outlet of the backflow preventer (6), and the soft joint (7) is connected to the fourth butterfly valve (8). 8. The intelligent silent frequency conversion constant pressure water supply equipment according to claim 3, characterized in that: the remote control terminal (21) is a smart phone.