Floor partitioned water supply system

Abstract

The present application relates to a kind of floor partition water supply system, according to the water pressure demand of each floor, entire building is divided into several layer regions, the water supply system includes main heat hot water mechanism, main circulating water pump, main one-way valve, layer region pressure regulating mechanism, layer region one-way valve and layer region pressure-bearing heat-insulated water tank;Hot water in main heat hot water mechanism is entered main water supply pipeline by main circulating water pump through main one-way valve, main pressure sensor is installed on main water supply pipeline, the main pressure sensor is associated with the main circulating water pump, the branch pipeline of main water supply pipeline leads to each layer region, the branch pipeline of main water supply pipeline is sequentially connected layer region pressure regulating mechanism, layer region one-way valve again after intercommunication layer region pressure-bearing heat-insulated water tank, layer region pressure-bearing heat-insulated water tank is connected by layer region backwater pipeline intercommunication each water supply point in layer region.The water supply system uses energy-saving design, can solve the water pressure problem of high floor, reduce the power consumption of operation, can also ensure that water supply temperature is always suitable.

Description

TECHNICAL FIELD

[0001] The present application relates to a floor partitioned water supply system, belonging to the technical field of water supply system. BACKGROUND

[0002] With the increase of urban population density, there are more and more high-rise buildings at present, especially more and more high-rise hotels. For high-rise hotels, the hot water supply system for bathing in each floor room is an important infrastructure, and the water supply system directly affects the operation cost and stability of the hot water supply of the whole hotel.

[0003] The problem to be solved at present for the floor water supply system is the water pressure problem of high floors. The ways to solve the water pressure problem of high-rise buildings are: (1) setting a water supply system for each floor area to ensure that each floor can reach the required water pressure. This water supply method requires a very high power of water pump, resulting in high energy consumption of water supply and increasing the operation cost of water supply; (2) using a hierarchical water supply method, such as the water supply method disclosed in CN206428753U, connecting a water distribution tank in the water supply system, and adding water pumps at different levels as the floor height rises, so that the water pressure demand of high floors can be met. This water supply method has lower energy consumption than the method of setting a water supply system for each floor area, but it still cannot achieve the lowest energy consumption; (3) In addition, additional equipment can be added for pressure boosting, such as CN108842849A, which transmits the pressure signal to the pipe network control system through the main pipe pressure detection device, and the pipe network control system controls the opening of the valve in real time, so as to ensure the constant pressure of the water supply pipe of each floor. However, this method requires a special control system software to be designed to calculate the pressure condition in the pipe and the valve opening in real time, which is a complicated process and is prone to control failure during long-term operation, resulting in difficulty in adjusting the water pressure. Moreover, this water supply system requires the water pump to work continuously. If the water pump stops working, the water supply cannot be realized. To meet the water supply of high floors, the power demand of the water pump is very large, and it needs to work continuously for 24 hours a day, which consumes a lot of energy.

[0004] In addition, the current disclosed water supply system can only realize water supply, but if the water supply is only for bathing, it not only needs to meet the water pressure problem of each floor, but also needs to keep the water temperature in the water supply system at a certain temperature to meet the bathing needs of the human body. The heating and temperature maintenance of water also need to consider energy consumption and convenience, which is a relatively lacking technical content in the current field. SUMMARY

[0005] The present application aims at the deficiencies of the prior art, and provides a floor partition water supply system, which adopts energy-saving design, can solve the water pressure problem of high floors, reduce the operation power consumption, ensure that the water supply temperature is always suitable, and the equipment unit structure of the water supply system is simple and low in cost, without using high-end precision equipment to cause high equipment cost.

[0006] The technical scheme for solving the above technical problems is as follows: a floor partition water supply system, according to the water pressure demand of each floor, the whole floor is divided into a plurality of layer regions, each layer region at least includes one floor, the water supply system includes a main hot water supply mechanism, a main circulating water pump, a main one-way valve, a layer region pressure regulating mechanism, a layer region one-way valve and a layer region pressure-bearing heat preservation water tank;

[0007] The hot water in the main hot water supply mechanism enters the main water supply pipeline through the main circulating water pump and the main one-way valve, a main pressure sensor is installed on the main water supply pipeline, the main pressure sensor is associated with the main circulating water pump, the main pressure sensor is located between the main one-way valve and the pressure regulating mechanism, the branch pipelines of the main water supply pipeline lead to each layer region, the branch pipelines of the main water supply pipeline are sequentially connected with the layer region pressure regulating mechanism, the layer region one-way valve and then connected with the layer region pressure-bearing heat preservation water tank, and the layer region pressure-bearing heat preservation water tank is connected with each water supply point in the layer region through a layer region backwater pipeline.

[0008] The main circulating water pump uses variable frequency pressure control frequency modulation, the main circulating water pump continuously supplements the pressure of the main water supply pipeline, a high pressure area is formed between the main one-way valve and each layer region pressure regulating mechanism, and the pressure of the main water supply pipeline is continuously supplied to each layer region pressure regulating mechanism to continuously supply the water pressure of each layer region, so that the pressure of each layer region pressure-bearing heat preservation water tank is always in a set range, under the action of the pressure difference, the layer region pressure-bearing heat preservation water tank can continuously supplement the hot water of each water supply point in each layer region through the layer region backwater pipeline, so that the hot water of each water supply end in each layer region can be continuously and non-consumptively supplied.

[0009] The main circulating water pump does not need to work continuously for 24 hours, and the main circulating water pump is started only when the main pressure sensor senses that the pressure between the main one-way valve and each layer region pressure regulating mechanism is reduced, the main one-way valve and each layer region pressure regulating mechanism are arranged in the system to play a pressure maintaining role between the main one-way valve and each layer region pressure regulating mechanism, so that the main circulating water pump only needs to work intermittently, thereby greatly reducing the working energy consumption of the main circulating water pump and the operation cost of the whole water supply system.

[0010] On the basis of the above technical scheme, the present application can also be improved as follows:

[0011] Further, the layer area pressure-bearing heat-insulated water tank in each layer area is connected with each water supply point in the layer area through a layer area water supply pipeline, and the layer area pressure-bearing heat-insulated water tank in each layer area is communicated with the main heat supply hot water mechanism through a main return water pipeline.

[0012] Further, a layer area circulating water pump is arranged on each layer area water supply pipeline, and a layer area water supply temperature sensor is arranged on each layer area water supply pipeline, and the layer area water supply temperature sensor is associated with the layer area circulating water pump in the same layer area. When the water supply temperature sensor senses that the water temperature in the layer area water supply pipeline is reduced, the layer area circulating water pump is started to circulate the water in the pipeline back to the layer area pressure-bearing heat-insulated water tank for heating.

[0013] Further, the water supply system comprises a subarea heat supply hot water unit, the layer area pressure-bearing heat-insulated water tank in each layer area is connected with the subarea heat supply circulating pipeline of the subarea heat supply hot water unit to form a separate circulating loop, a subarea heat supply hot water pump is connected to the subarea heat supply circulating pipeline, a subarea circulating heat supply control valve is arranged at the connection inlet of the subarea heat supply circulating pipeline and each layer area pressure-bearing heat-insulated water tank, a main circulating heat supply control valve is arranged on the branch pipeline of each layer area of the main return water pipeline, a layer area water tank temperature sensor is arranged in the layer area pressure-bearing heat-insulated water tank, the layer area water tank temperature sensor is associated with the subarea circulating heat supply control valve in the same layer area, and the subarea circulating heat supply control valve is associated with the subarea heat supply hot water pump and the subarea heat supply hot water unit. When the layer area water tank temperature sensor senses that the water temperature in the layer area pressure-bearing heat-insulated water tank is lower than the set value, the subarea circulating heat supply control valve is automatically started, and the subarea heat supply hot water pump and the subarea heat supply hot water unit are started, the water in the layer area pressure-bearing heat-insulated water tank is circulated and heated in the subarea heat supply hot water unit through the subarea heat supply circulating pipeline, the subarea circulating heat supply control valve of the layer area pressure-bearing heat-insulated water tank with lower water temperature is started, and the water is heated in a targeted manner, thereby reducing energy consumption, the subarea heat supply hot water pump only needs to adopt a low-power pump to meet the use requirement, a high-power main circulating water pump does not need to be started, the subarea heat supply hot water unit adopts a high-efficiency unit to meet the heating requirement, and energy consumption is further reduced.

[0014] When the water temperature in all layer area pressure-bearing heat-insulated water tanks is lower than the set value or the whole water supply system is started, the main circulating heat supply control valve is opened, the main circulating water pump is started, and the main heat supply hot water mechanism is used for heating, so as to ensure that the water supply temperature is stable and meet the requirement of large amount of water supply in a concentrated period.

[0015] Further, the pressure regulating mechanism is a pressure reducing valve, the pressure reducing valve is provided with a pressure gauge, the opening of the pressure reducing valve can be set according to the water pressure demand of each layer area, the structure is simple, and the use is convenient; the district heating water heater adopts an air source heat pump water heater, the energy consumption of the air source heat pump water heater is lower, a manual valve is arranged at the inlet of the main circulating water pump, a manual valve is arranged at the inlet of each pressure reducing valve, a manual valve is arranged between the main circulating heating control valve and the layer area pressure-bearing heat preservation water tank, a manual valve is arranged at the circulating inlet and outlet of the district heating circulating pipeline connected with the layer area pressure-bearing heat preservation water tank, and a manual valve is arranged at the outlet of each layer area circulating water pump. The arrangement of the plurality of manual valves is more convenient for maintenance.

[0016] Further, the main heating hot water mechanism comprises a main heating hot water unit, a main heat preservation water tank and a main heating hot water pump, the main heating hot water unit and the main heat preservation water tank form a circulating loop through a main heating circulating pipeline, and a tap water pipeline is connected to the main heat preservation water tank.

[0017] Further, a main water tank temperature sensor is arranged in the main heat preservation water tank, and the main water tank temperature sensor is associated with the main heating hot water pump and the main heating hot water unit.

[0018] Further, a tap water electromagnetic control valve is arranged on the tap water pipeline, a water level sensor is arranged in the main heat preservation water tank, and the water level sensor is associated with the tap water electromagnetic control valve. When the water level sensor senses that the water level in the main heat preservation water tank is low, the tap water electromagnetic control valve is automatically opened, so that tap water is introduced into the main heat preservation water tank, and when the water level sensor senses that the water level in the main heat preservation water tank is high, the tap water electromagnetic control valve is automatically closed, so that the introduction of tap water is cut off.

[0019] Further, a tap water check valve is arranged on the tap water pipeline, so that the tap water can flow in one direction.

[0020] Further, the main heating hot water unit adopts an air source heat pump water heater, the energy consumption of the air source heat pump water heater is lower, a manual valve is arranged at the circulating inlet and outlet of the main heating circulating pipeline connected with the main heat preservation water tank, and the arrangement of the manual valve is more convenient for maintenance.

[0021] The beneficial effects of the present application are:

[0022] (1) The frequency conversion control design of the main circulating water pump, the main check valve, each layer area pressure regulating mechanism and the main pressure sensor, the main circulating water pump can be real-time frequency conversion and water replenishment according to the change of water supply pressure, and the daily power consumption of the main circulating water pump can be greatly reduced;

[0023] (2) For each floor area, the floor area pressure insulation water tank is adopted, and the pressure regulating water supply is used to ensure that the water supply pressure of each floor area is always stable at the set value, the pressure of each water point in the floor area is consistent, and the automatic water supply according to the pipeline pressure in each floor area can be met without water pump operation, so that the non-power consumption water supply is realized;

[0024] (3) The main insulation water tank is adopted to ensure the stable water supply temperature, and the large amount of water supply demand in the concentrated time period can be met;

[0025] (4) The small hot water unit is used to continuously heat the partition water tank, and the small power partition heating hot water pump and partition heating hot water unit can ensure the stable temperature in the floor area pressure insulation water tank, so that the main circulating water pump needs to be frequently started to heat the water and send it back to the main insulation water tank, and the use power consumption of the main circulating water pump is greatly reduced;

[0026] (5) The floor area circulating water pump is arranged, so that when the water temperature in the pipeline of each floor area cannot meet the use demand, the floor area circulating water pump is started to heat in the floor area pressure insulation water tank, the water supply temperature is ensured to be appropriate, the starting frequency of the main circulating water pump is further reduced, and the use power consumption is reduced;

[0027] (6) The whole water supply system can greatly reduce the water supply operation cost of high floors, does not need to use complicated and expensive equipment single body, does not need to use high-end software control, and reduces the frequency of out-of-control failure in the water supply process. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 It is a structure schematic diagram of the water supply system described in embodiment 1;

[0029] Figure 2 It is a structure schematic diagram of the water supply system described in embodiment 2;

[0030] Figure 3 It is a structure schematic diagram of the water supply system described in embodiment 3;

[0031] In the figure, 1 is a main heating hot water unit, 2 is a main insulation water tank, 3 is a main heating hot water pump, 4 is a main heating circulating pipeline, 5 is a tap water pipeline, 6 is a tap water electromagnetic control valve, 7 is a tap water check valve, 8 is a main return water pipeline, 9 is a main water supply pipeline, 10 is a low floor area water supply pipeline, 11 is a middle floor area water supply pipeline, 12 is a high floor area water supply pipeline, 13 is a low area water supply check valve, 14 is a low floor area pressure gauge, 15 is a low floor area circulating pump, 16 is a middle area water supply check valve, 17 is a middle floor area pressure gauge, 18 is a middle floor area circulating pump, 19 is a high area water supply check valve, 20 is a high floor area pressure gauge, 21 is a high floor area circulating pump, 22 is a low floor area return water pipeline, 23 is a middle floor area return water pipeline, 24 is a high floor area return water pipeline, 25 is each water supply point in the low floor area, 26 is each water supply point in the middle floor area, and 27 is each water supply point in the high floor area.

[0032] 28 primary circulating water pump, 29 secondary circulating water pump, 30 tertiary circulating water pump, 31 secondary water supply pipeline, 32 one-way control valve, 33 primary pressure gauge, 34 secondary pressure gauge, 35 tertiary pressure gauge, 36 primary water distributor, 37 secondary water distributor;

[0033] 38 main one-way valve, 39 low-floor area pressure reducing valve, 40 middle-floor area pressure reducing valve, 41 high-floor area pressure reducing valve, 42 low-floor area one-way valve, 43 middle-floor area one-way valve, 44 high-floor area one-way valve, 45 low-floor area pressure-bearing heat preservation water tank, 46 middle-floor area pressure-bearing heat preservation water tank, 47 high-floor area pressure-bearing heat preservation water tank, 48 main pressure sensor, 49 main circulating water pump, 50 low-floor area water supply temperature sensor, 51 middle-floor area water supply temperature sensor, 52 high-floor area water supply temperature sensor, 53 low-floor area circulating water pump, 54 middle-floor area circulating water pump, 55 high-floor area circulating water pump, 56 main circulating heating control valve, 57 district heating hot water unit, 58 district heating circulating pipeline, 59 district heating hot water pump, 60 district circulating heating control valve. DETAILED DESCRIPTION

[0034] In order to make the above objectives, features and advantages of the present application more apparent, the specific embodiments of the present application are described in detail below. In the following description, a lot of specific details are set forth in order to fully understand the present application. However, the present application can be implemented in many different ways from those described herein, and those skilled in the art can make similar improvements without departing from the spirit of the present application, and therefore the present application is not limited to the specific embodiments disclosed below.

[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0036] Example 1

[0037] As Figure 1The water supply system is the most common water supply system structure, according to the water pressure requirement of each floor, the whole building is divided into three layer areas: low layer area, middle layer area and high layer area, each layer area includes at least one floor, the water supply system includes a main hot water supply mechanism, the main hot water supply mechanism includes: a main hot water supply unit 1, a main heat preservation water tank 2 and a main hot water supply pump 3, the main hot water supply unit 1 and the main heat preservation water tank 2 form a circulation loop through a main hot water supply circulation pipeline 4, and a tap water pipeline 5 is connected to the main heat preservation water tank 2. A main water tank temperature sensor is arranged in the main heat preservation water tank 2, and the main water tank temperature sensor is associated with the main hot water supply pump 3. A tap water electromagnetic control valve 6 is arranged on the tap water pipeline 5, a water level sensor is arranged in the main heat preservation water tank 2, and the water level sensor is associated with the tap water electromagnetic control valve 6. A tap water check valve 7 is arranged on the tap water pipeline 5.

[0038] The main heat preservation water tank 2 is connected with a main return water pipeline 8 and a main water supply pipeline 9, the main water supply pipeline 9 is divided into three branches, which are a low layer area water supply pipeline 10, a middle layer area water supply pipeline 11 and a high layer area water supply pipeline 12, the low layer area water supply pipeline 10 is connected with a low area water supply check valve 13, a low layer area pressure gauge 14 and a low layer area circulating pump 15, the middle layer area water supply pipeline 11 is connected with a middle area water supply check valve 16, a middle layer area pressure gauge 17 and a middle layer area circulating pump 18, and the high layer area water supply pipeline 12 is connected with a high area water supply check valve 19, a high layer area pressure gauge 20 and a high layer area circulating pump 21.

[0039] The main return water pipeline 8 is divided into three branches, which are a low layer area return water pipeline 22, a middle layer area return water pipeline 23 and a high layer area return water pipeline 24, the low layer area return water pipeline 22 and the low layer area water supply pipeline 10 are both connected with each water supply point 25 in the low layer area, the middle layer area return water pipeline 23 and the middle layer area water supply pipeline 11 are both connected with each water supply point 26 in the middle layer area, and the high layer area return water pipeline 24 and the high layer area water supply pipeline 12 are both connected with each water supply point 27 in the high layer area.

[0040] The hot water in the main heat preservation water tank 2 is pumped to the water supply pipelines of each layer area by the circulating pumps of each layer area to realize water supply to each water supply point of each layer area, and the water supply routes of each layer area are independent and have no interference, but the water supply energy consumption is very high, the circulating pumps of each layer area have very large power, and need to be continuously operated.

[0041] Example 2

[0042] As Figure 2The water supply system is a water supply system structure which has been disclosed, according to the water pressure demand of each floor, the whole building is divided into three layer areas: low layer area, middle layer area and high layer area, each layer area includes at least one floor, the water supply system includes a main hot water supply mechanism, the main hot water supply mechanism includes: a main hot water supply unit 1, a main heat preservation water tank 2 and a main hot water supply pump 3, the main hot water supply unit 1 and the main heat preservation water tank 2 form a circulating loop through a main hot water supply circulating pipeline 4, and a tap water pipeline 5 is connected to the main heat preservation water tank 2. A main water tank temperature sensor is arranged in the main heat preservation water tank 2, and the main water tank temperature sensor is associated with the main hot water supply pump 3. A tap water electromagnetic control valve 6 is arranged on the tap water pipeline 5, a water level sensor is arranged in the main heat preservation water tank 2, and the water level sensor is associated with the tap water electromagnetic control valve 6. A tap water check valve 7 is arranged on the tap water pipeline 5.

[0043] The main heat preservation water tank 2 is connected with a main return water pipeline 8 and a main water supply pipeline 9, the main return water pipeline 8 is divided into three branches, which are a low layer area return water pipeline 22, a middle layer area return water pipeline 23 and a high layer area return water pipeline 24, a one-way control valve 32, a first stage pressure gauge 33 and a first stage circulating pump are arranged on the main water supply pipeline 9, the main water supply pipeline 9 is connected with a first stage water distributor 36 through the first stage circulating water pump 28, the main water supply pipeline 9 is divided into a low layer area water supply pipeline 10 and a second stage water supply pipeline 31 through the first stage water distributor 36, a low layer area water supply check valve 13 is arranged on the low layer area water supply pipeline, a one-way control valve 32, a second stage pressure gauge 34 and a second stage circulating water pump 29 are connected to the second stage water supply pipeline 31, an outlet end of the second stage circulating water pump is connected with a second stage water distributor 37, the second stage water supply pipeline 31 is divided into a middle layer area water supply pipeline 11 and a high layer area water supply pipeline 12 through the second stage water distributor 37, a middle layer area water supply check valve is arranged on the middle layer area water supply pipeline 11, and a high layer area water supply check valve 19, a third stage pressure gauge 35 and a third stage circulating water pump 30 are arranged on the high layer area water supply pipeline 12.

[0044] The low layer area return water pipeline 22 and the low layer area water supply pipeline 10 are communicated with each water supply point 25 in the low layer area, the middle layer area return water pipeline 23 and the middle layer area water supply pipeline 11 are communicated with each water supply point 26 in the middle layer area, and the high layer area return water pipeline 24 and the high layer area water supply pipeline 12 are communicated with each water supply point 27 in the high layer area.

[0045] In the embodiment, the hierarchical water supply scheme is adopted, compared with the water supply system of the embodiment 1, the hierarchical water supply can reduce the use power and lift of the middle layer and high layer water supply pumps (i.e. the second stage circulating water pump 29 and the third stage circulating water pump 30), thereby saving energy consumption compared with the scheme of the embodiment 1.

[0046] Embodiment 3

[0047] As Figure 3As shown, the embodiment is a water supply system according to the technical scheme of the present application. According to the water pressure requirement of each floor, the whole building is divided into three layer zones: low layer zone, middle layer zone and high layer zone, each layer zone including at least one floor. The water supply system includes a main hot water supply mechanism, a main circulating water pump 49, a main one-way valve 38, a layer zone pressure regulating mechanism, a layer zone one-way valve and a layer zone pressure-bearing heat preservation water tank.

[0048] Specifically, the main hot water supply mechanism includes a main hot water supply unit 1, a main heat preservation water tank 2 and a main hot water supply pump 3. The main hot water supply unit 1 and the main heat preservation water tank 2 form a circulating loop through a main hot water supply circulating pipeline 4. A tap water pipeline 5 is connected to the main heat preservation water tank 2. A main water tank temperature sensor is arranged in the main heat preservation water tank 2. The main water tank temperature sensor is associated with the main hot water supply pump 3. A tap water electromagnetic control valve 6 is arranged on the tap water pipeline 5. A water level sensor is arranged in the main heat preservation water tank 2. The water level sensor is associated with the tap water electromagnetic control valve 6. A tap water one-way valve 7 is arranged on the tap water pipeline 5.

[0049] Specifically, the layer zone pressure regulating mechanism includes a low layer zone pressure reducing valve 39, a middle layer zone pressure reducing valve 40 and a high layer zone pressure reducing valve 41. The layer zone one-way valve includes a low layer zone one-way valve 42, a middle layer zone one-way valve 43 and a high layer zone one-way valve 44. The layer zone pressure-bearing heat preservation water tank includes a low layer zone pressure-bearing heat preservation water tank 45, a middle layer zone pressure-bearing heat preservation water tank 46 and a high layer zone pressure-bearing heat preservation water tank 47.

[0050] Hot water in the main heat preservation water tank 2 enters a main water supply pipeline 9 through the main one-way valve 38 and the main circulating water pump 49. A main pressure sensor 48 is arranged on the main water supply pipeline 9. The main pressure sensor 48 is associated with the main circulating water pump 49. Three branch pipelines of the main water supply pipeline 9 lead to the low layer zone, the middle layer zone and the high layer zone respectively. The branch pipeline of the main water supply pipeline 9 leading to the low layer zone is connected to the low layer zone pressure reducing valve 39, the low layer zone one-way valve 42 and then the low layer zone pressure-bearing heat preservation water tank 45 in sequence. The branch pipeline of the main water supply pipeline 9 leading to the middle layer zone is connected to the middle layer zone pressure reducing valve 40, the middle layer zone one-way valve 43 and then the middle layer zone pressure-bearing heat preservation water tank 46 in sequence. The low layer zone pressure-bearing heat preservation water tank 45 is connected to each water supply point in the low layer zone through a low layer zone backwater pipeline 22. The middle layer zone pressure-bearing heat preservation water tank 46 is connected to each water supply point in the middle layer zone through a middle layer zone backwater pipeline 23. The high layer zone pressure-bearing heat preservation water tank 47 is connected to each water supply point in the high layer zone through a high layer zone backwater pipeline 24.

[0051] The low layer area pressure retaining heat preservation water tank 45 is connected with each water supply point in the low layer area by a low layer area water supply pipeline 10, the low layer area pressure retaining heat preservation water tank 45 is communicated with the main heat preservation water tank 2 by a main return water pipeline 8, the low layer area water supply pipeline 10 is connected with each water supply point in the low layer area by a low layer area circulating water pump 53, a low layer area water supply temperature sensor 50 is arranged on the low layer area water supply pipeline 10, and the low layer area water supply temperature sensor 50 is associated with the low layer area circulating water pump 53.

[0052] The middle layer area pressure retaining heat preservation water tank 46 is connected with each water supply point in the middle layer area by a middle layer area water supply pipeline 11, the middle layer area pressure retaining heat preservation water tank 46 is communicated with the main heat preservation water tank 2 by the main return water pipeline 8, the middle layer area water supply pipeline 11 is connected with each water supply point in the middle layer area by a middle layer area circulating water pump 54, a middle layer area water supply temperature sensor 51 is arranged on the middle layer area water supply pipeline 11, and the middle layer area water supply temperature sensor 51 is associated with the middle layer area circulating water pump 54.

[0053] The high layer area pressure retaining heat preservation water tank 47 is connected with each water supply point in the low layer area by a high layer area water supply pipeline 12, the high layer area pressure retaining heat preservation water tank 47 is communicated with the main heat preservation water tank 2 by the main return water pipeline 8, the high layer area water supply pipeline 12 is connected with each water supply point in the high layer area by a high layer area circulating water pump 55, a high layer area water supply temperature sensor 52 is arranged on the high layer area water supply pipeline 12, and the high layer area water supply temperature sensor 52 is associated with the high layer area circulating water pump 55.

[0054] The low layer area pressure retaining heat preservation water tank 45, the middle layer area pressure retaining heat preservation water tank 46 and the high layer area pressure retaining heat preservation water tank 47 are all provided with a main circulating heating control valve 56.

[0055] The water supply system comprises a district heating hot water unit 57, the low layer area pressure retaining heat preservation water tank 45, the middle layer area pressure retaining heat preservation water tank 46 and the high layer area pressure retaining heat preservation water tank 47 are all connected with the district heating hot water unit 57 to form separate circulating loops by a district heating circulating pipeline 58, the district heating circulating pipeline 58 is connected with a district heating hot water pump 59, a district circulating heating control valve 60 is arranged at the connection inlet of the district heating circulating pipeline 58 and the low layer area pressure retaining heat preservation water tank 45, the middle layer area pressure retaining heat preservation water tank 46 and the high layer area pressure retaining heat preservation water tank 47, a layer area water tank temperature sensor is arranged in the low layer area pressure retaining heat preservation water tank 45, the middle layer area pressure retaining heat preservation water tank 46 and the high layer area pressure retaining heat preservation water tank 47, the layer area water tank temperature sensor is associated with the district circulating heating control valve 60 in the same layer area, and the district circulating heating control valve 60 is associated with the district heating hot water pump 59 and the district heating hot water unit 57.

[0056] The main heating hot water unit 1 adopts an air source heat pump hot water unit, the main heating circulating pipeline 4 and the circulating inlet and outlet connected with the main heat preservation water tank 2 are provided with manual valves. The subarea heating hot water unit 57 adopts an air source heat pump hot water unit, the inlet of the main circulating water pump 49 is provided with a manual valve, the inlets of the low layer area pressure reducing valve 39, the middle layer area pressure reducing valve 40 and the high layer area pressure reducing valve 41 are provided with manual valves, the main circulating heating control valve 56 and the low layer area pressure bearing heat preservation water tank 45, the middle layer area pressure bearing heat preservation water tank 46 and the high layer area pressure bearing heat preservation water tank 47 are provided with manual valves, the subarea heating circulating pipeline 58 and the low layer area pressure bearing heat preservation water tank 45, the middle layer area pressure bearing heat preservation water tank 46 and the high layer area pressure bearing heat preservation water tank 47 connected circulating inlets and outlets are provided with manual valves, and the outlets of the low layer area circulating water pump 53, the middle layer area circulating water pump 54 and the high layer area circulating water pump 55 are provided with manual valves. The manual valves are convenient for the staff to overhaul the water supply system.

[0057] Working principle:

[0058] The circulating water in the main heat preservation water tank 2 is heated by the main heating hot water pump 3 through the main heating circulating pipeline 4 and enters the main heating hot water unit 1, and the hot water returns to the main heat preservation water tank 2 through the main heating circulating pipeline 4; the main water tank temperature sensor controls the start and stop of the main heating hot water pump 3 and the main heating hot water unit 1, so that the main heat preservation water tank 2 maintains the required temperature.

[0059] The tap water is controlled by the tap water electromagnetic control valve 6 according to the water level sensor in the main heat preservation water tank 2, and the tap water unidirectional valve 7 supplies water to the main heat preservation water tank 2.

[0060] The hot water in the main heat preservation water tank 2 enters the main water supply pipeline 9 through the main circulating water pump 49 and the main unidirectional valve 38, and the main pressure sensor 48 controls the water supply of the main circulating water pump 49 through pressure control frequency modulation. The pipeline pressure of the main water supply pipeline 9 is maintained within the design range.

[0061] The main water supply pipeline 9 respectively passes through the low layer area pressure reducing valve 39, the middle layer area pressure reducing valve 40 or the high layer area pressure reducing valve 41 in each branch, so that the water system pressure of each layer area is reduced to the design pressure, and respectively enters the low layer area pressure bearing heat preservation water tank 45, the middle layer area pressure bearing heat preservation water tank 46 and the high layer area pressure bearing heat preservation water tank 47 through the low layer area unidirectional valve 42, the middle layer area unidirectional valve 43 and the high layer area unidirectional valve 44.

[0062] Each layer area can realize non-power consumption water supply according to the pressure of the subarea water system, the pressure of the subarea water system is supplied in real time by the pressure of the main water supply pipeline 9, and the stability of the pressure of the subarea water system is ensured.

[0063] When the low floor area water supply temperature sensor detects that the water supply temperature is lower than the design water supply temperature, the low floor area circulating water pump 53 is controlled to be turned on, and the low floor area water supply pipeline 10 and the low floor area return water pipeline 22 circulate the water in the pipeline back to the low floor area pressure-keeping heat preservation water tank 45 for heating. The operation principles of the middle floor area and the high floor area are the same, which will not be listed in detail here.

[0064] When the floor area temperature sensor in the low floor area pressure-keeping heat preservation water tank 45 detects that the water temperature is lower than the set value, the low area partition circulating heating control valve 60 is opened, and the partition heating hot water unit 57 and the partition heating hot water pump 59 are opened, so that the circulating water circulates the water in the low floor area pressure-keeping heat preservation water tank 45 through the partition heating circulating pipeline 58 for heating. The operation principles of the middle floor area and the high floor area are the same, which will not be listed in detail here.

[0065] According to the use requirements, for example, when a large amount of water supply is required in a concentrated time period, the main circulating heating control valve 56 can also be opened, so that the circulating water returns to the main heat preservation water tank 2 through the main return water pipeline 8 for heating.

[0066] In the technical scheme of the embodiment, four-stage energy saving schemes are adopted: the first-stage energy saving design, the main heating hot water unit 1 is used as the heating scheme design, and the air source heat pump hot water unit is used as the main energy saving effect.

[0067] The second-stage energy saving design, since the main circulating water pump 49 has a large power, the main circulating water pump 49 uses variable frequency pressure control, and the total power consumption of 24-hour variable frequency use is only equivalent to the power consumption of 1-hour 50Hz operation.

[0068] The third-stage energy saving design, the partition pressure control non-consumption water supply is used, and the main circulating water pump 49 controlled by the variable frequency continuously supplements the pressure of the main water supply pipeline 9 (a high pressure area is formed between the main one-way valve 38 and the floor area one-way valve). At the same time, the pressure of the main water supply pipeline 9 continuously supplies the pressure of each floor area under the action of each floor area one-way valve, so as to ensure that each floor area pressure-keeping heat preservation water tank is always in the set range. Under the action of the pressure difference, each floor area pressure-keeping heat preservation water tank can continuously supplement the hot water of each floor area water supply point, so as to ensure that the hot water at the floor area water supply end can be continuously supplied without power consumption.

[0069] The fourth-stage energy saving design, since the main circulating water pump 49 has a large power, the partition heating hot water unit 57 is used for design, so as to avoid that the water in each floor area pressure-keeping heat preservation water tank repeatedly returns to the main heat preservation water tank 2, and reduce the use frequency of the main circulating water pump 49. In the scheme of the embodiment, the total power consumption of water supply per day is only 10% of the scheme of the embodiment 1.

[0070] Any combination of the technical features in the above-described embodiments can be made, and for the sake of brevity, not all possible combinations are described, however, as long as the combination of the technical features does not exist in contradiction, it shall be considered within the scope of the present disclosure.

[0071] The above-described embodiments only express several implementation manners of the present application, and the description is relatively specific and detailed, but it shall not be understood as a limitation on the patent scope of the present application. It shall be pointed out that, for ordinary skilled persons in the art, several modifications and improvements can be made without departing from the concept of the present application, and these shall be within the protection scope of the present application. Therefore, the protection scope of the present application patent shall be subject to the appended claims.

Claims

1. A floor zoned water supply system characterised in that, According to water pressure requirements of each floor, the whole building is divided into several layer areas, each layer area includes at least one floor, the water supply system includes a main hot water supply mechanism, a main circulating water pump, a main one-way valve, a layer area pressure regulating mechanism, a layer area one-way valve and a layer area pressure-bearing heat preservation water tank; Hot water in the main hot water supply mechanism enters the main water supply pipeline through the main circulating water pump and the main one-way valve, a main pressure sensor is installed on the main water supply pipeline, the main pressure sensor is associated with the main circulating water pump, branch pipelines of the main water supply pipeline lead to each layer area, the branch pipelines of the main water supply pipeline are sequentially connected with the layer area pressure regulating mechanism, the layer area one-way valve and then connected with the layer area pressure-bearing heat preservation water tank, the layer area pressure-bearing heat preservation water tank is connected with each water supply point in the layer area through a layer area backwater pipeline; The layer area pressure-bearing heat preservation water tank in each layer area is connected with each water supply point in the layer area through a layer area water supply pipeline, the layer area pressure-bearing heat preservation water tank in each layer area is connected with the main hot water supply mechanism through a main backwater pipeline; A layer area circulating water pump is arranged on each layer area water supply pipeline, a layer area water supply temperature sensor is arranged on each layer area water supply pipeline, the layer area water supply temperature sensor is associated with the layer area circulating water pump in the same layer area; The water supply system includes a subarea hot water supply unit, the layer area pressure-bearing heat preservation water tank in each layer area is connected with the subarea hot water supply unit through a subarea hot water circulating pipeline to form a separate circulating loop, a subarea hot water pump is connected to the subarea hot water circulating pipeline, a subarea circulating hot water control valve is arranged at a connection inlet of the subarea hot water circulating pipeline and each layer area pressure-bearing heat preservation water tank, a main circulating hot water control valve is arranged on a branch pipeline of the main backwater pipeline in each layer area, a layer area water tank temperature sensor is arranged in the layer area pressure-bearing heat preservation water tank, the layer area water tank temperature sensor is associated with the subarea circulating hot water control valve in the same layer area, the subarea circulating hot water control valve is associated with the subarea hot water pump and the subarea hot water supply unit; The main hot water supply mechanism includes a main hot water supply unit, a main heat preservation water tank and a main hot water pump, the main hot water supply unit is connected with the main heat preservation water tank through a main hot water circulating pipeline to form a circulating loop, a tap water pipeline is connected to the main heat preservation water tank; The main hot water supply unit is an air source heat pump hot water unit, a manual valve is arranged at a circulating inlet and outlet of the main hot water circulating pipeline and the main heat preservation water tank; A main water tank temperature sensor is arranged in the main heat preservation water tank, the main water tank temperature sensor is associated with the main hot water pump.

2. The floor zoning water supply system according to claim 1, wherein The pressure regulating mechanism is a pressure reducing valve, the subarea hot water supply unit is an air source heat pump hot water unit, a manual valve is arranged at an inlet of the main circulating water pump, a manual valve is arranged at an inlet of each pressure reducing valve, a manual valve is arranged between the main circulating hot water control valve and the layer area pressure-bearing heat preservation water tank, a manual valve is arranged at a circulating inlet and outlet of the subarea hot water circulating pipeline and the layer area pressure-bearing heat preservation water tank, and a manual valve is arranged at an outlet of each layer area circulating water pump.

3. The floor zoning water supply system according to claim 1, wherein The tap water pipeline is provided with a tap water electromagnetic control valve, and the main heat preservation water tank is provided with a water level sensor.

4. The floor zoning water supply system according to claim 3, wherein The tap water pipeline is provided with a tap water check valve.

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