Secondary water supply front equipment and its control method
A pre-equipment and secondary water supply technology, which is applied in the direction of water supply devices, water supply main pipelines, water supply pipeline systems, etc., can solve the problems of insufficient utilization of water supply systems, water pollution, and large energy consumption for secondary water supply pressurization, etc. Achieve the effect of high added value of technology, avoid secondary pollution, and prevent man-made damage
Active Publication Date: 2010-01-27
王峰
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Problems solved by technology
[0009] The purpose of the present invention is to provide a secondary water supply pre-equipment and its control method, to solve the problem that the existing water supply system cannot make full use of the urban water pressure, and the energy consumption of the secondary water supply is large, and also to solve the problem of secondary water supply Pressurization can cause water pollution problems
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[0053] Examples see figure 1 Shown: this kind of secondary water supply front equipment includes community water supply equipment and control system. The water inlet of the community water supply equipment is connected to the municipal water supply pipe 9, and the water outlet of the community water supply equipment is connected through the outlet pipe 11 and the secondary pressure pump 15. The water point 16 is characterized in that: the district water supply equipment is composed of at least one pressure-bearing tank 1 and pressure-compensating equipment, and multiple pressure-bearing tanks are connected by a connecting pipe 8.
[0054] The pressure tank 1 is provided with a manhole 2 and a lifting ring 3, and is connected with a pressure relief valve 4, an automatic exhaust valve 5, a vent valve 6, a vacuum suppressor 7, a low water level alarm 12 and a second pressure gauge 22.
[0055] A pressure-compensating water supply pipe 23 is connected in parallel between the other water...
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The invention relates to secondary water supply preposing equipment and a control method thereof. When a municipal water supply pipe supplies water normally, coming water passes through a bearing tank, is pressurized by a secondary pressure pump, and is supplied; and the pump lift of the secondary pressure pump is the actual required pump lift minus the municipal water pressure, so that the aim of energy conservation is achieved by fully utilization of the municipal water pressure within most of running time. When the municipal water supply pipe can not supply water normally, a pressure sensor which is arranged on the municipal water supply pipe gives out a signal, and a first electrically operated valve which is arranged on the municipal water supply pipe is switched off; the bearing tank performs air inlet through a vacuum inhibitor, and water in the bearing tank is converted from bearing state to free water surface; a second electrically operated valve which is connected with the bearing tank is opened simultaneously, and a pressure compensation pump is switched on for water supply; the pump lift of the pressure compensation pump is equivalent to the pressure under the condition of normal municipal water supply; and the pressure compensation pump is connected in series with the secondary pressure pump for water supply. The secondary water supply preposing equipment can fully utilize the municipal water pressure, save energy consumption of secondary water supply and pressurization, meet the overall requirement of adjustment of the water quantity in cities, and solve the water pollution problem of secondary water supply and pressurization.
Description
Technical field [0001] The invention relates to a water supply system, in particular to a water supply system mainly used in industrial and civil building communities and indoors. Background technique [0002] In the building water supply system, because municipal water supply usually only provides water pressure below 0.3MPa, the building water supply must be pressurized twice. The existing pressurization methods are as follows: [0003] First, the municipal household entrance pipe is connected to the underground pool, and the water supply equipment is used for secondary pressure. The disadvantages of this method are: [0004] 1) Waste energy. Article 4.0.5 of the "Urban Water Supply Project Planning Code" (GB50282-989) stipulates that the water supply pressure of the urban water distribution network should meet the 28m service head at the user's takeover point. That is to say, the water pressure at the water supply connection point in large and medium cities can reach about 0.3MP...
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IPC IPC(8): E03B7/07E03B5/00G05D16/20
Inventor 王峰
Owner 王峰