CN216787299U - Utilize municipal water supply pipe network residual pressure to protect energy-conserving booster of pump - Google Patents

Utilize municipal water supply pipe network residual pressure to protect energy-conserving booster of pump Download PDF

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Publication number
CN216787299U
CN216787299U CN202220101106.0U CN202220101106U CN216787299U CN 216787299 U CN216787299 U CN 216787299U CN 202220101106 U CN202220101106 U CN 202220101106U CN 216787299 U CN216787299 U CN 216787299U
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water
cylinder body
piston cylinder
cylinder
reversing valve
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王彤
杨玉思
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Xi'an Jiyuan Waterworks Device Co ltd
Changan University
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Xi'an Jiyuan Waterworks Device Co ltd
Changan University
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Abstract

The utility model discloses an energy-saving supercharger utilizing a municipal water supply pipe network residual pressure maintaining pump, and belongs to the field of superchargers. The utility model provides an utilize municipal water supply network excess pressure to protect energy-conserving booster of pump, make full use of municipal excess pressure's energy comes the acting, two strokes of piston cylinder in the drive booster, the upper end area of piston cylinder is n times lower extreme, then the hydraulic pressure acting of epicoele will produce municipal excess pressure n times's pressure in the lower chamber, realize direct pressure boost water supply, the excess pressure utilizes the back working water, the reverse stroke of piston is driven under municipal excess pressure acting likewise to the working water that does the work of epicoele, the working water after doing the work of epicoele pours into the water tank, although the upper chamber pressure is less than municipal excess pressure in the second stroke of piston cylinder, nevertheless be enough to send the working water into the non-pressure water tank. The pressurizer of the utility model is particularly suitable for green water supply without power consumption in small flow periods at night in a community.

Description

Utilize municipal water supply pipe network residual pressure to protect energy-conserving booster of pump
Technical Field
The utility model belongs to the field of superchargers, and particularly relates to an energy-saving supercharger capable of utilizing excess pressure of a municipal water supply pipe network to protect a pump.
Background
Because city construction develops rapidly, and building density increases water load and increases, and municipal water supply pipe network is updated and reformed the laggard, causes municipal pipe network pressure (hereinafter for short the excess pressure) to descend, can not satisfy old district direct water supply, for preventing to strike municipal pipe network, the water supply enterprise restricts the user and adopts the pressure-superposed water supply, consequently a large amount of old district secondary water supplies water and adopts "water tank (pond) + frequency conversion" mode regulation pressure boost. When water in the municipal pipe network is introduced into the water tank, residual pressure is discharged to zero, and the residual pressure cannot be utilized and is wasted. And in the night small-flow water using period, the water pump runs inefficiently or even inefficiently, for example, in the night small-flow period 1: 00 to 5: 00, the time period accounts for 16.7% of the total day, the water consumption accounts for 0.8% of the total day, and the power consumption of the water pump accounts for 11.1% of the total day.
Therefore, for the commonly applied buildings and districts with storage regulation and pressurization water supply of 'water tank (pool) + frequency conversion', an unpowered energy-saving supercharger is urgently needed at night in the period of micro water consumption, and the water pump is protected from being frequently started and stopped, and the consumption and the carbon are reduced.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of the prior art and provides an energy-saving booster utilizing excess pressure of a municipal water supply pipe network to protect a pump.
In order to achieve the purpose, the utility model adopts the following technical scheme to realize the purpose:
an energy-saving booster utilizing surplus pressure of a municipal water supply network to protect a pump comprises a cylinder body, wherein a cylinder body cover plate is arranged at the top of the cylinder body, a piston cylinder is arranged in the cylinder body, a control rod is arranged in the piston cylinder, an auxiliary positioning plate is arranged at the bottom of the control rod, an upper cover is arranged at the top of the piston cylinder, the control rod penetrates through the upper cover and extends to the outside of the cylinder body cover plate, a three-way reversing valve is arranged on the cylinder body cover plate, a reversing plate is arranged at the top of the control rod extending to the outside of the cylinder body cover plate, and the reversing plate is positioned in the three-way reversing valve;
an upper baffle and a lower baffle are arranged inside a valve body of the three-way reversing valve, the three-way reversing valve is divided into an upper compartment, a middle compartment and a lower compartment by the two baffles, and the upper compartment, the middle compartment and the lower compartment are respectively provided with a connecting port;
the cylinder body comprises an upper part and a lower part, the lower part of the cylinder body is provided with an inward end face, and the end face is attached to the cylinder body of the piston cylinder; the upper cover of the piston cylinder is attached to the cylinder wall of the upper part of the cylinder body, and the area of the upper cover of the piston cylinder is larger than that of the bottom of the cylinder body; a pressurizing water outlet pipe is arranged at the bottom of the lower part of the cylinder body, a water outlet one-way valve is arranged in the pressurizing water outlet pipe, a lower cavity water filling pipe is arranged at one side of the lower part of the cylinder body, a water inlet one-way valve is arranged in the lower cavity water filling pipe, and a middle cavity vent pipe is arranged at one side of the upper part of the cylinder body, which is close to the lower part;
the cylinder body cover plate is provided with a cylinder body upper cavity connecting pipe, and the other end of the cylinder body upper cavity connecting pipe is communicated with a middle connecting port of the three-way reversing valve; the lower connector of the three-way reversing valve is connected with a water inlet pipe of the three-way reversing valve, and the upper connector of the three-way reversing valve is connected with a water inlet pipeline of the water tank;
when the piston cylinder descends at the highest position of the cylinder body, the upper cover of the piston cylinder is abutted against the auxiliary positioning plate along with the descending of the piston cylinder, then the control rod descends along with the descending of the piston cylinder, the upper cover of the piston cylinder is contacted with the end surface of the lower part of the cover plate of the cylinder body, the piston cylinder descends to the lowest position, at the moment, the reversing plate of the control rod is positioned at the lower baffle plate of the three-way reversing valve, and the water inlet pipe of the three-way reversing valve of the lower interface of the three-way reversing valve is separated from the cavity of the cylinder body;
when the piston cylinder moves upwards at the lowest position of the cylinder body, the bottom of the piston cylinder is abutted to the auxiliary positioning plate along with the upward movement of the piston cylinder, the control rod moves upwards along with the piston cylinder, the piston cylinder is contacted with the cylinder body cover plate along with the continuous upward movement of the piston cylinder, the piston cylinder moves upwards to the highest position, at the moment, the reversing plate of the control rod is positioned at the upper baffle plate of the three-way reversing valve, and the water tank water inlet pipeline of the upper interface of the three-way reversing valve is separated from the cavity of the cylinder body.
Further, the bottom of the cylinder body is provided with a base.
Furthermore, the pressurizing water outlet pipe is connected with a terminal user, the lower cavity water filling pipe and the three-way reversing valve water inlet pipe are connected with municipal tap water, and the water tank water inlet pipeline is connected with the water tank.
Further, the middle cavity vent pipe is communicated with the atmosphere.
Furthermore, the corresponding inlet and outlet of the energy-saving booster utilizing the municipal water supply network residual pressure to protect the pump are communicated together.
Furthermore, the piston cylinder upper cover of one supercharger is positioned at the cylinder body cover plate, and the piston cylinder upper cover of the other supercharger is positioned at the end surface of the lower part of the cylinder body.
Further, the pressure difference between the supercharging values of the two superchargers is 0.05 MPa.
Further, the device is communicated with a pneumatic water tank.
Compared with the prior art, the utility model has the following beneficial effects:
the utility model provides an utilize municipal water supply network excess pressure to protect pump energy-conserving booster, make full use of municipal excess pressure's energy comes the acting, two strokes of piston cylinder in the drive booster, the upper end area of piston cylinder is the lower extreme several times, the hydraulic acting of epicoele will produce the pressure that is higher than municipal excess pressure several times in the lower chamber, realize direct pressure boost water supply, the excess pressure utilizes the back working water, drive the reverse stroke of piston under municipal excess pressure acting equally, the working water after the epicoele acting is poured into the water tank, although the upper chamber pressure is less than municipal excess pressure in the piston cylinder second stroke, nevertheless be enough to send working water into the non-pressure water tank. The supercharger is suitable for green water supply without power consumption in a small flow period at night in a community.
The working method of the energy-saving supercharger utilizes the municipal water supply network residual pressure to drive a piston cylinder to move up and down, and the upper stroke and the lower stroke of the piston cylinder complete one working cycle, so that the municipal residual pressure energy wasted in the past is utilized to drive the supercharger to supercharge water supply and fill water and drain.
Furthermore, in order to overcome the intermittent pressurizing effect existing in the two-stroke alternate operation, the air pressure water tank is matched to work in a combined mode or the double cylinders work in a combined mode, continuous water supply in a period of micro water consumption at night is achieved, frequent starting and stopping and low-efficiency operation of a water pump in the period are avoided, and the purpose of saving energy and protecting the pump is achieved.
Drawings
FIG. 1 is a cross-sectional view of the present invention;
FIG. 2 is a cross-sectional view of the piston cylinder of the present invention at different positions, wherein FIG. 2 corresponds to a cross-sectional view of the piston cylinder during the downward movement, FIG. 2 corresponds to a cross-sectional view of the piston cylinder during the downward movement to the lowest position, FIG. 2 corresponds to a cross-sectional view of the piston cylinder during the upward movement, and FIG. 2 corresponds to a cross-sectional view of the piston cylinder during the upward movement to the highest position;
FIG. 3 is a block diagram of two energy-saving boosters operating in parallel using a municipal water supply network residual pressure protection pump;
FIG. 4 is a first installation of the present invention;
fig. 5 shows a second embodiment of the utility model.
Wherein: 1-a cylinder body; 2-a piston cylinder; 3-cylinder body cover plate; 4-upper chamber communication pipe; 5-a reversing plate; 6-three-way reversing valve cylinder body; 7-a control lever; 8-auxiliary positioning plate; 9-a lower cavity water filling pipe; 10-water inlet one-way valve; 11-a water inlet pipe of a three-way reversing valve; 12-a pressurized water outlet pipe; 13-water outlet one-way valve; 14-a lumen vent tube; 15-water tank inlet pipe; 16-cylinder upper chamber; 17-cylinder body middle cavity; 18-cylinder body lower cavity; 19-a base; 20-a supercharger water inlet; 01-a low level water tank inlet pipe; 02-low level water tank; 03-a variable frequency pump; 04-air pressure water tank; 05-a water supply pipe network; 06-water using facilities; 07-a pressure sensor; 08-electric control cabinet; 009-utilize municipal pipe network residual pressure to protect pump energy-saving booster.
Detailed Description
In order to make those skilled in the art better understand the technical solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the utility model described herein are capable of operation in sequences other than those illustrated or described herein. Moreover, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
The utility model aims to overcome the defects of a secondary water supply mode, and provides an energy-saving supercharger which is reasonable in structural design, stable and reliable in performance, utilizes the excess pressure of a municipal pipe network to protect a pump, utilizes the excess pressure of the pipe network to do work, utilizes a water tank to receive working water to store water, does not consume external power to realize pressurization water supply, protects the water pump from low-efficiency or ineffective operation, and saves energy and reduces consumption.
The utility model is described in further detail below with reference to the accompanying drawings:
referring to fig. 1, fig. 1 is a cross-sectional view of an energy-saving supercharger utilizing municipal water supply network residual pressure to protect a pump, the supercharger of the utility model is vertically installed inside a pump room, the energy-saving supercharger of the utility model utilizing municipal water supply network residual pressure to protect a pump comprises a cylinder body 1, the top of the cylinder body 1 is provided with a cylinder cover plate 3, the bottom of the cylinder body 1 is provided with a base 19, a piston cylinder 2 is arranged in the cylinder body 1, a control rod 7 is arranged in the piston cylinder 2, the bottom of the control rod 7 is provided with an auxiliary positioning plate 8, the top of the piston cylinder 2 is provided with an upper cover, the control rod 7 passes through the upper cover and extends to the outside of the cylinder cover plate 3, the cylinder cover plate 3 is provided with a three-way reversing valve 6, the top of the control rod 7 extending to the outside of the cylinder cover plate 3 is provided with a reversing plate 5, and the reversing plate 5 is positioned inside the three-way reversing valve 6; an upper baffle and a lower baffle are arranged inside a valve body of the three-way reversing valve 6, the three-way reversing valve 6 is divided into an upper compartment, a middle compartment and a lower compartment by the two baffles, and the upper compartment, the middle compartment and the lower compartment are respectively provided with a connecting port; the cylinder body 1 comprises an upper part and a lower part, the lower part of the cylinder body 1 is provided with an inward end face, and the end face is attached to the cylinder body of the piston cylinder 2; the upper cover of the piston cylinder 2 is attached to the cylinder wall of the upper part of the cylinder body 1, and the area of the upper cover of the piston cylinder 2 is larger than that of the bottom; the cylinder body is divided into a cylinder body upper cavity 16, a cylinder body middle cavity 17 and a cylinder body lower cavity 18 according to the movement of the piston cylinder 2, the cavity above the upper cover of the piston cylinder 2 is used as the cylinder body upper cavity 16, the cavity between the lower part of the piston cylinder 2 and the lower part of the cylinder body 1 is used as the cylinder body middle cavity 17, the cavity at the lower part of the cylinder body 1 is used as the cylinder body lower cavity 18, the bottom of the cylinder body lower cavity 18 is provided with a pressurization water outlet pipe 12, a water outlet one-way valve 13 is arranged in the pressurization water outlet pipe 12, one side of the cylinder body lower cavity 18 is provided with a lower cavity water filling pipe 9, a water inlet one-way valve 10 is arranged in the lower cavity water filling pipe 9, and one side of the cylinder body middle cavity 17 is provided with a middle cavity vent pipe 14; the cylinder body 1 is provided with a cylinder body upper cavity connecting pipe 4, and the other end of the cylinder body upper cavity connecting pipe 4 is communicated with a middle connecting port of a three-way reversing valve 6; the lower connector of the three-way reversing valve 6 is connected with a three-way reversing valve water inlet pipe 11, the upper connector of the three-way reversing valve 6 is connected with a water tank water inlet pipeline 15, the water tank water inlet pipeline 15 is connected with a water tank, and the three-way reversing valve water inlet pipe 11 and the lower cavity water filling pipe 9 are both connected with municipal tap water; when the piston cylinder 2 moves downwards in the cylinder body 1, along with the downward movement of the piston cylinder 2, the upper cover of the piston cylinder 2 is abutted against the auxiliary positioning plate 8, then the control rod 7 moves downwards, along with the continuous downward movement of the piston cylinder 2, the upper cover of the piston cylinder 2 is contacted with the end surface of the lower part of the cylinder body cover plate 3, the piston cylinder 2 moves downwards to the lowest position, at the moment, the reversing plate 5 of the control rod 7 is positioned at the lower baffle of the three-way reversing valve 6, and the three-way reversing valve water inlet pipe 11 of the lower interface of the three-way reversing valve 6 is separated from the cavity of the cylinder body 1;
when the piston cylinder 2 moves upwards in the cylinder body 1, along with the upward movement of the piston cylinder 2, the bottom of the piston cylinder 2 is abutted to the auxiliary positioning plate 8, then the control rod 7 moves upwards along with the piston cylinder 2, along with the continuous upward movement of the piston cylinder 2, the piston cylinder 2 is contacted with the cylinder body cover plate 3, the piston cylinder 2 moves upwards to the highest position, at the moment, the reversing plate 5 of the control rod 7 is positioned at the upper baffle plate of the three-way reversing valve 6, and the water tank water inlet pipeline 15 of the upper interface of the three-way reversing valve 6 is separated from the cavity of the cylinder body 1.
The lower cavity pressurization pressure and the cylinder body upper cavity water discharge pressure of the utility model are as follows:
the vertical force of piston cylinder in the pressure boost water supply process of first stroke is balanced, then:
p0S1=p2S2i.e. p2=p0S1/S2
The vertical force balance of the piston cylinder in the working condition process of water filling and water draining of the second stroke is as follows:
p0S2=p1S1i.e. p1=p0S2/S1
In the formula: p is a radical of0-municipal pipe network pressure, MPa; p is a radical of2-lower cavity pressurisation pressure, MPa;
S1-piston cylinder upper end area, square meter; s2Area of lower end of piston cylinder, square meter, S1>S2
P1-cylinder upper chamber drain water pressure, MPa. The area of the upper cover of the piston cylinder 2 is n times of the area of the bottom of the piston cylinder 2, and n is more than or equal to 2.
The working principle of the utility model is that the upper and lower pressure difference is generated by the upper and lower unequal areas of the piston, the piston cylinder moves downwards to pressurize and supply water, after moving downwards to the lowest, the water supply is suspended, the automatic conversion is performed to the water filling piston cylinder in the lower cavity to move upwards, the upper cavity water in the cylinder body is discharged into the water tank, when the original action position is recovered, the channel of the water inlet tank is automatically closed, the municipal water inlet is opened, the pressurized water supply working condition is entered, the circulation is alternated, so as to realize the energy saving and pump protection action, and the specific working flow is as follows:
this booster is installed in the secondary water supply pump house of "water tank + frequency conversion", and the water tank vacates the vacant reservoir capacity, and through municipal excess pressure to booster piston cylinder sliding assembly acting, two strokes are realized and are circulated reciprocal, and automatic steadily intermittent type nature pressure boost supplies water. A first stroke: the piston cylinder 2 moves downwards to pressurize and supply water, municipal pipe network incoming water enters the cylinder upper cavity 16 through the three-way reversing valve 6 and the cylinder cover plate 3, the pressure difference between the upper part and the lower part of the piston cylinder is increased to a threshold value due to the unequal areas of the upper part and the lower part of the piston cylinder, and the piston cylinder 2 moves downwards to supply water in the lower cavity to a user through the water outlet pipe 12 at the bottom of the cylinder; when the piston cylinder moves down to the lowest position, the upper cavity of the cylinder body is filled with water, the water stored in the lower cavity of the cylinder body is completely pressurized and supplied to a user, and the first stroke is finished. A second stroke: when the piston cylinder 2 moves upwards to fill water and drain water, a reversing plate 5 in the three-way reversing valve 6 closes a channel leading to an upper cavity 16 of the piston cylinder body, the upper cavity of the cylinder body loses pressure, pressurized water enters a lower cavity 18 of the cylinder body through a lower cavity water filling pipe 9 and a one-way valve 10 on the lower cavity water filling pipe, the piston cylinder 2 moves upwards along with the water filling of the lower cavity 18 of the cylinder body, the water in the upper cavity 16 of the cylinder body enters a water tank, when the piston cylinder 2 rises to the highest position, the lower cavity 18 of the cylinder body is filled with water, all the water in the upper cavity 16 of the cylinder body is drained into the water tank, the reversing plate 5 in the three-way reversing valve closes a water inlet tank channel 15, opens a pipeline for water to enter the upper cavity 16 of the piston cylinder body under the residual pressure, and the working condition of pressurization and water supply is converted into the first stroke. The circulation is alternated to realize the functions of energy conservation and pump protection.
Referring to fig. 2, fig. 2 is a schematic structural diagram of two stroke cycles of the present invention, wherein during the downward movement of the piston cylinder in fig. 2, i.e., during the first stroke, the first stroke is: municipal tap water enters a three-way reversing valve 6 through a three-way reversing valve water inlet pipe 11, pressurized water passes through a cylinder body cover plate 3 through a cylinder body upper cavity connecting pipe 4 and enters a cylinder body upper cavity 16, the volume of the cylinder body upper cavity 16 is enlarged by pressurized water under the action of residual pressure of a pipe network, a piston cylinder 2 is pushed to move downwards to compress a cylinder body middle cavity 17 and a cylinder body lower cavity 18, the non-pressure cylinder body middle cavity 17 exhausts through a middle cavity air pipe 14, and the volume is reduced; the lower cavity 18 of the cylinder body is compressed by the downward movement of the piston cylinder 2, so that the water in the lower cavity 18 of the cylinder body is pressurized, and the pressurized water in the lower cavity 18 of the cylinder body is supplied to users and a pneumatic water tank through a pressurized water outlet pipe 12 and a one-way valve 13. The pressurized water supply operation is ended when the piston cylinder 2 is moved down to the lowermost position. In FIG. 2, the piston cylinder moves downwards to the lowest position, which corresponds to the end of the first stroke and the beginning of the second stroke, at this time, the control rod 7 moves downwards to the lowest position along with the piston cylinder 2, the reversing plate 5 in the three-way reversing valve 6 reaches the lower baffle plate, and the water inlet pipe 11 of the three-way reversing valve is separated from the cylinder body 1; the reversing plate 5 leaves the upper baffle of the three-way reversing valve 6, and the water tank inlet pipeline 15 is communicated with the cylinder body 1; in the ascending process of the piston cylinder in fig. 2, corresponding to the second stroke, municipal tap water fills the lower cavity 18 of the cylinder body, pressurized water in the lower cavity 18 of the cylinder body drives the piston cylinder 2 to move upwards, the upper cavity 16 of the cylinder body drains water, the municipal tap water enters the lower cavity 18 of the cylinder body through the lower cavity water filling pipe 9 and the one-way valve 10 under the action of residual pressure, the water filling piston cylinder 2 in the lower cavity 18 of the cylinder body moves upwards rapidly, the middle cavity 17 of the cylinder body inhales and expands through the middle cavity vent pipe 14, and the original pressurized water in the upper cavity 16 of the cylinder body flows into the water tank water inlet pipeline 15 through the connecting pipe 4 of the upper cavity of the cylinder body cover plate 3 and the three-way reversing valve 6, so that the non-pressure working water is discharged into the water tank. When the piston cylinder 2 moves up to the cylinder body cover plate 3, the piston cylinder reaches the highest position, at the moment, the control rod 7 also reaches the highest position, the reversing plate 5 reaches the upper baffle plate of the three-way reversing valve 6, the three-way reversing valve water inlet pipe 11 is communicated with the cylinder body 1, the water tank water inlet pipeline 15 is communicated with the cylinder body 1 and is separated, the water filling and draining working condition is finished, the piston cylinder in the figure 2 moves up to the highest position, the corresponding second stroke is finished, and the third stroke is started. And then switching to the pressurized water supply working condition of the first stroke, and circulating.
Referring to fig. 3, fig. 3 is a structural diagram of two energy-saving superchargers operating in parallel by utilizing municipal water supply network residual pressure maintaining pumps, the two superchargers are respectively No. 1 and No. 2, the upper interfaces of the No. 1 and No. 2 three-way reversing valves 6 are respectively connected with a water tank, the middle interfaces of the No. 1 and No. 2 three-way reversing valves 6 are respectively communicated with the corresponding cylinder upper cavities 16 through cylinder upper cavity connecting pipes 4, the lower interfaces of the No. 1 and No. 2 three-way reversing valves 6 are both connected with municipal tap water, the lower cavity water filling pipes 9 of the No. 1 and No. 2 cylinder bodies 1 are also both connected with municipal tap water, and the booster water outlet pipes 12 of the No. 1 and No. 2 cylinder bodies 1 are communicated with each other and then supplied to users. By controlling the initial state of the piston cylinders, the two piston cylinders are respectively positioned at the highest position and the lowest position, and the two communicated superchargers alternately perform the working conditions of pressurization water supply and water filling and water drainage so as to realize uninterrupted pressurization water supply.
Referring to fig. 4, fig. 4 is a first installation manner of the present invention, and the original "water tank + frequency conversion" secondary water supply system includes: the system comprises a low-level water tank water inlet pipe 01, a low-level water tank 02, a variable frequency pump 03, an air pressure water tank 04, a water supply pipe network 05, a water utilization facility 06, a pressure sensor 07 and an electrical control cabinet 08. The 'installation utilizes municipal pipe network excess pressure to protect energy-conserving booster of pump' 09 is added, A, B, C3 pipeline sections need to be installed in addition, 1 pipeline section that is the booster intaking, 2 pipeline sections that the booster goes out the water. The first pipe section a installed is: a branch port is formed in the pipe section of the municipal water supply network water inlet tank, a booster water inlet pipe section is installed, and municipal tap water is connected to a booster water inlet 20 in the figure 1; the second pipe section B installed was: starting from the water outlet one-way valve 13 of the supercharger, and ending behind the check valve of the water outlet pipe of the water pump; the third tube section C installed is: the water tank is accessed from the beginning of the water tank inlet pipe 15 at the top of the cylinder body of the supercharger and is terminated. The water level of water tank is in no pond of highest water level and holds, and when the cylinder body epicoele that can not accomodate the booster sluices, then booster stop work is absorbing water the pressure boost from the water tank through the inverter pump and is supplying water to the user, reduces the water tank water level after, the booster can restart work. The booster can replace the water pump inefficiently to operate in the time slot of using water of small discharge at night, utilize the intermittent type pressure boost shortcoming of atmospheric pressure water pitcher compensation booster simultaneously, realize supplying water continuously.
Referring to fig. 5, fig. 5 shows a second installation of the present invention, i.e., two superchargers in parallel. Original "water tank + frequency conversion" secondary water supply system contains: the system comprises a low-level water tank water inlet pipe 01, a low-level water tank 02, a variable frequency pump 03, an air pressure water tank 04, a water supply pipe network 05, a water utilization facility 06, a pressure sensor 07 and an electrical control cabinet 08. The municipal pipe network residual pressure pump-protecting energy-saving pressurizer 009 is used in parallel, and 3 pipe sections A, B, C need to be additionally installed, namely 1 water inlet pipe section of the pressurizer and 2 water outlet pipe sections of the pressurizer. The first pipe section a installed is: a branch port is formed in a pipe section of a municipal water supply network water inlet tank, a booster water inlet pipe section is installed, and municipal tap water is connected to a booster water inlet 20 in a booster; the second pipe section B installed was: starting from the water outlet one-way valve 13 of the supercharger, and ending behind the check valve of the water outlet pipe of the water pump; the third tube section C installed is: the water tank is accessed from the beginning of the water tank inlet pipe 15 at the top of the cylinder body of the supercharger and is terminated. The water level of water tank is in no pond of highest water level and holds, and when the cylinder body epicoele that can not accomodate the booster sluices, then booster stop work is absorbing water the pressure boost from the water tank through the inverter pump and is supplying water to the user, reduces the water tank water level after, the booster can restart work. The two communicated superchargers alternately perform the processes of pressurizing water supply and water filling and draining so as to realize continuous water supply.
Taking the pressurization multiple as 3 as an example, namely the municipal pipe network residual pressure is 0.2MPa, the pressure required by a user pipe network is 0.6MPa, and the pressure ratio is 1:3, when the pressurized water in the upper cavity of the cylinder body is discharged, the pressurized water enters the water tank, the water tank needs to have a spare volume to contain the water, and the discharged water amount is 3 times of the water supply amount of the pressurizer. For example: 4m3 water is got from municipal pipe network, and the booster supplies water 1m3 and supplies the user, and 3m3 working water on the cylinder body epicoele all gets into the water tank in the second stroke, and the working water that the water tank was accomodate is supplied with the user by the water pump pressurization finally, just can vacate the non-pressure working water that the water tank volume received the booster and let out. If the daily water consumption of a community is 100m3, municipal residual pressure energy can be converted into pressurized water to supply 25m3, and 3 × 25-75 m3 non-pressurized water is pressurized by a water pump unit to supply users, so that the energy saving rate is about 25%, and the booster cannot completely replace the water pump unit and works cooperatively to play a certain energy-saving and pump-protecting role.
The supercharger of the utility model works in cooperation with the water tank and the variable frequency pump. The water tank is discharged by the working water of the booster, the variable frequency pump runs at regular time to supply the water discharged by the booster, and the water tank stock is emptied to serve the discharge of the working water of the booster. The working water stored in the water tank is not polluted and can be supplied to users by the operation of the water pump.
The above-mentioned contents are only for illustrating the technical idea of the present invention, and the protection scope of the present invention is not limited thereby, and any modification made on the basis of the technical idea of the present invention falls within the protection scope of the claims of the present invention.

Claims (8)

1. The energy-saving booster utilizing the municipal water supply network residual pressure to protect the pump is characterized by comprising a cylinder body (1), wherein a cylinder body cover plate (3) is arranged at the top of the cylinder body (1), a piston cylinder (2) is arranged in the cylinder body (1), a control rod (7) is arranged in the piston cylinder (2), an auxiliary positioning plate (8) is arranged at the bottom of the control rod (7), an upper cover is arranged at the top of the piston cylinder (2), the control rod (7) penetrates through the upper cover and extends to the outside of the cylinder body cover plate (3), a three-way reversing valve (6) is arranged on the cylinder body cover plate (3), a reversing plate (5) is arranged at the top of the control rod (7) extending to the outside of the cylinder body cover plate (3), and the reversing plate (5) is positioned inside the three-way reversing valve (6);
an upper baffle and a lower baffle are arranged inside a valve body of the three-way reversing valve (6), the three-way reversing valve (6) is divided into an upper compartment, a middle compartment and a lower compartment by the two baffles, and the upper compartment, the middle compartment and the lower compartment are respectively provided with a connecting port;
the cylinder body (1) comprises an upper part and a lower part, the lower part of the cylinder body (1) is provided with an inward end face, and the end face is attached to the cylinder body of the piston cylinder (2); the upper cover of the piston cylinder (2) is attached to the cylinder wall of the upper part of the cylinder body (1), and the area of the upper cover of the piston cylinder (2) is larger than that of the bottom; a pressurizing water outlet pipe (12) is arranged at the bottom of the lower part of the cylinder body (1), a water outlet one-way valve (13) is arranged in the pressurizing water outlet pipe (12), a lower cavity water filling pipe (9) is arranged at one side of the lower part of the cylinder body (1), a water inlet one-way valve (10) is arranged in the lower cavity water filling pipe (9), and a middle cavity vent pipe (14) is arranged at one side of the upper part of the cylinder body (1) close to the lower part; the area of the upper cover of the piston cylinder (2) is n times of the area of the bottom of the piston cylinder (2), and n is more than or equal to 2;
the cylinder body cover plate (3) is provided with a cylinder body upper cavity connecting pipe (4), and the other end of the cylinder body upper cavity connecting pipe (4) is communicated with a middle connecting port of a three-way reversing valve (6); the lower connector of the three-way reversing valve (6) is connected with a three-way reversing valve water inlet pipe (11), and the upper connector of the three-way reversing valve (6) is connected with a water tank water inlet pipeline (15);
when the piston cylinder (2) descends at the highest position of the cylinder body (1), along with the descending of the piston cylinder (2), the upper cover of the piston cylinder (2) is abutted against the auxiliary positioning plate (8), then the control rod (7) descends along with the descending of the piston cylinder (2), along with the continuous descending of the piston cylinder (2), the upper cover of the piston cylinder (2) is contacted with the end surface of the lower part of the cylinder body cover plate (3), the piston cylinder (2) descends to the lowest position, at the moment, the reversing plate (5) of the control rod (7) is positioned at the lower baffle of the three-way reversing valve (6), and the three-way reversing valve water inlet pipe (11) of the lower interface of the three-way reversing valve (6) is separated from the cavity of the cylinder body (1);
when the piston cylinder (2) moves upwards at the lowest position of the cylinder body (1), along with the upward movement of the piston cylinder (2), the bottom of the piston cylinder (2) is abutted to the auxiliary positioning plate (8), then the control rod (7) moves upwards along with the piston cylinder (2), along with the continuous upward movement of the piston cylinder (2), the piston cylinder (2) is contacted with the cylinder body cover plate (3), the piston cylinder (2) moves upwards to the highest position, at the moment, the reversing plate (5) of the control rod (7) is positioned at the upper baffle of the three-way reversing valve (6), and the water tank water inlet pipeline (15) of the upper interface of the three-way reversing valve (6) is separated from the cavity of the cylinder body (1).
2. The energy-saving booster using the excess pressure of the municipal water supply pipe network according to claim 1, wherein a base (19) is provided at the bottom of the cylinder body (1).
3. The energy-saving booster using the residual pressure of the municipal water supply pipe network to protect the pump according to claim 1, wherein the water pressurizing outlet pipe (12) is connected to an end user, the lower cavity water filling pipe (9) and the three-way reversing valve water inlet pipe (11) are connected to municipal tap water, and the water tank water inlet pipe (15) is connected to a water tank.
4. The excess pressure maintaining, pump saving and pressurizing device using the municipal water supply network according to claim 1, wherein the middle cavity vent pipe (14) is in communication with the atmosphere.
5. The booster of claim 1, wherein the inlets and outlets of the two boosters are connected together.
6. The excess pressure maintaining pump energy-saving supercharger utilizing municipal water supply pipe network according to claim 5, wherein the upper cover of the piston cylinder (2) of one supercharger is located at the cylinder cover plate (3), and the upper cover of the piston cylinder (2) of the other supercharger is located at the end surface of the lower part of the cylinder body (1).
7. The booster of claim 6, wherein the pressure difference between the two boosters is 0.05 MPa.
8. The energy-saving booster utilizing the residual pressure of the municipal water supply network and the pump as claimed in claim 1, wherein the booster is communicated with a pneumatic water tank.
CN202220101106.0U 2022-01-15 2022-01-15 Utilize municipal water supply pipe network residual pressure to protect energy-conserving booster of pump Active CN216787299U (en)

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CN202220101106.0U CN216787299U (en) 2022-01-15 2022-01-15 Utilize municipal water supply pipe network residual pressure to protect energy-conserving booster of pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202220101106.0U CN216787299U (en) 2022-01-15 2022-01-15 Utilize municipal water supply pipe network residual pressure to protect energy-conserving booster of pump

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Publication Number Publication Date
CN216787299U true CN216787299U (en) 2022-06-21

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