Force siphon back-purge system
The utility model relates to technical field of water body purification more particularly to a kind of back-purge systems.
Many applications require to recycle after Water warfare.Such as landscape water, swimming-pool water.Purified water need using
To Rose Box, Rose Box is interior to be equipped with filtering material, and the filter layer that filtering material is constituted is during working long hours, interior meeting
More and more impurities in water are retained, causes filter layer increasing to the resistance of water, influences normal filter process.Filtration resistance increases
Greatly to just needs unlatching backwash after certain phase.The principle of existing back-purge system is that backwash is connected to above filter layer
Water pipe, water level will rise along backwash water pipe after filtration resistance increases.Backwashing water tube top portion is connected with downwards siphon drainage pipe, water
Position will fall after rising to backwashing water tube top end along siphon drainage pipe, and form siphonage, make water in Rose Box to
Upper refluence, purified water are flow backwards upwards, are taken away the impurity that filter layer is put aside when across filter layer, to play purification filtering
Layer enables filter layer to re-start the effect normally filtered.
Although existing back-purge system can be backwashed automatically, when opening backwash process but cannot be by
Artificial manipulation.When water level can rise to backwashing water tube top end, the filtration resistance of filter layer is very big, seriously affects just
Normal filtering function.Sometimes, people need to guarantee the normal use of Rose Box in special time period, as needed to guarantee in the phase in red-letter day
Between or opening during Rose Box absolutely can normal use, when not may require that normal use filter layer blocking, need to backwash,
To influence the business goals such as the effect of publicity or tourist experience.
Utility model content
The purpose of this utility model is to provide the pressure siphon backwash systems that one kind can manually open backwash process
To achieve the above object, the pressure siphon back-purge system of the utility model includes water tank with strainer and recoil draining
Case, intake antrum, filter layer and water chamber are from top to bottom equipped in water tank with strainer, and water chamber is connected with water pipe, water pipe connection
There are clear water reserviors, is connected at the top of water tank with strainer to drainage water inlet pipe；
Siphon recoil tube is connected up at the top of water tank with strainer, the top of siphon recoil tube has the tipping tube of right low left high
Section, inclination pipeline section left end are connected with downwards recoil downpipe, and recoil downpipe extends downwardly into recoil discharge casing and its bottom end is equipped with
Opening, recoil discharge casing are connected with drainpipe；The liquid level to recoil in discharge casing is higher than recoil downpipe bottom end opening；
The inclination pipeline section for recoiling downpipe right is connected with downwards siphon and promotes pipe, and siphon promotes pipe and recoil overboard
The distance of pipe is less than 15 centimetres and siphon promotes the caliber of pipe to be less than recoil downpipe；Siphon promotes pipe to extend downwardly into recoil draining
The bottom end opening of case and its bottom end opening and recoil downpipe is the same as high；Siphon promotes to be connected with exhaust pipe in the middle part of pipe, is evacuated
Pipeline upwardly extends and is connected with the highest point of inclination pipeline section；
Siphon promotes to be connected with pressure flushing pipe at the top of pipe, and flushing pipe is forced to be connected with external water source；It forces to rinse
It is A point that pipe, which promotes the junction of pipe with siphon, and it is B point that exhaust pipe and siphon, which promote the junction of pipe,；Tilt pipeline section highest point
Height be H meter, H meter high water column pressures are P1, and the hydraulic pressure at external water source is higher than P, and guarantee is enough led to the water energy at drainage water source
It crosses pressure flushing pipe 15 and enters siphon promotion pipe 13, and guarantee that the water potential when filter layer blocks in siphon recoil tube is got at and reach
Tilt the highest point of pipeline section；It forces flushing pipe to be equipped with and forces flushing valve.
It is connected with three-way connection at the top of water tank with strainer, is connected with three-way connection to drainage water inlet pipe with siphon recoil tube
It is logical.
Recoil discharge casing open top and its left end connection drainpipe；It is equipped with and overflows along the longitudinal direction in recoil discharge casing
Weir is flowed, recoil discharge casing inside left and right is divided into drainage cavity and water seal cavity by overflow weir；Drainage cavity be located at overflow weir left and with
Drainpipe is connected, and drainpipe is connected to drainage cavity bottom, and water seal cavity is located at overflow weir right；Recoil downpipe extends downwardly into water
The bottom end for sealing chamber and the downpipe that recoils is lower than overflow weir top.
Siphon between A point and B point promotes pipe to be equipped with undergauge section, and the caliber of undergauge section is that the siphon other than undergauge section promotes
The half of the caliber of pipe；Siphon other than undergauge section promotes the caliber of pipe less than a quarter of the caliber of siphon recoil tube；
Undergauge section is connected with siphon accelerating tube, and siphon accelerating tube is connected with high water tank, and the bottom end of high water tank is higher than rainbow
Inhale the junction of accelerating tube and undergauge section；The caliber of siphon accelerating tube is less than siphon and promotes pipe.
The utility model has the advantage that
Using the utility model, can not increase in filter layer filtration resistance rises to the water level in siphon recoil tube not incline
When the degree on inclined tube section top, forces flushing valve manually to open backwash process by opening, open and backwash more flexible, phase
Mode than automatically turning on backwash can open backwash process earlier, guarantee that set period filter layer can be normally carried out
Siphon promotes pipe at a distance from recoil downpipe less than 15 centimetres, tilts pipeline section right low left high, and siphon promotes pipe position
In the position for closing on inclination pipeline section highest point, siphon promotes the top of pipe lower than the highest point of inclination pipeline section, therefore siphon recoils
Water in pipe is necessarily introduced into siphon and promotes pipe, rear to enter recoil downpipe；This makes it possible to promote pipe using siphon and take out
Air pipe extracts the gas in siphon recoil tube out, promotes to generate siphonage in recoil downpipe and siphon recoil tube.It is external
The hydraulic pressure at water source is higher than P1, forces flushing pipe to enter siphon promotion pipe to guarantee that the water energy at external water source enough passes through, thus main
It is dynamic to open backwash process.
It is connected with three-way connection to drainage water inlet pipe with siphon recoil tube, is just only needed in this way at the top of water tank with strainer
A three-way connection is connected, without being separately connected to drainage water inlet pipe and siphon recoil tube, keeps overall structure more compact,
When filter layer filtration resistance increases, water energy to be filtered is enough more swimmingly directly to be risen along siphon recoil tube.
The setting of overflow weir can guarantee that the water level in water seal cavity is higher than recoil downpipe bottom end, to form fluid-tight；Together
When drainpipe can be connected to again recoil discharge casing drainage cavity bottom, convenient for arrangement drainpipe.
Siphon other than undergauge section promotes the caliber of pipe less than a quarter of the caliber of siphon recoil tube, so that siphon promotees
Small volume in inlet pipe, it is few to deposit tolerance, and siphonage is more readily formed compared to siphon recoil tube.Rainbow is formed in siphon accelerating tube
After suction phenomenon, water in high water tank continually enters siphon by siphon accelerating tube and promotes to manage and fall, and then improves pair
The drainage of exhaust pipe accelerates to form siphonage in siphon recoil tube, realizes hydrocone type backwash.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
As shown in Figure 1, the pressure siphon back-purge system of the utility model includes water tank with strainer 1 and recoil discharge casing 2, mistake
Intake antrum 3, filter layer 4 and water chamber 5 are from top to bottom equipped in water filtering tank 1, water chamber 5 is connected with water pipe 6, and water pipe 6 connects
Clear water reserviors 7 are connected to, are connected at the top of water tank with strainer 1 to drainage water inlet pipe 8；
Siphon recoil tube 9 is connected up at the top of water tank with strainer 1, the top of siphon recoil tube 9 has inclining for right low left high
Inclined tube section 10, inclination 10 left end of pipeline section are connected with downwards recoil downpipe 11, and recoil downpipe 11 extends downwardly into recoil discharge casing 2
And its bottom end is equipped with opening, recoil discharge casing 2 is connected with drainpipe 12；The liquid level to recoil in discharge casing 2 is higher than recoil downpipe
11 bottom end openings；
It is described recoil 11 right of downpipe inclination pipeline section 10 be connected with downwards siphon promote pipe 13, siphon promote pipe 13 with
The distance of recoil downpipe 11 is less than 15 centimetres and siphon promotes the caliber of pipe 13 to be less than recoil downpipe 11；Siphon promotes pipe 13
It extends downwardly into recoil discharge casing 2 and the bottom end opening of its bottom end opening and recoil downpipe 11 is the same as high；Siphon promotes in pipe 13
Portion is connected with exhaust pipe 14, and exhaust pipe 14 upwardly extends and is connected with the highest point of inclination pipeline section 10；
Siphon promotes the top of pipe 13 to be connected with pressure flushing pipe 15, and flushing pipe 15 is forced to be connected with external water source；By force
It is A point that flushing pipe 15 processed, which promotes the junction of pipe 13 with siphon, and it is B point that exhaust pipe 14 and siphon, which promote the junction of pipe 13,；
The height for tilting pipeline section highest point is H meters (H is positive real number), and H meters of high water column pressures are that P1(P1 is positive real number, unit million
Pa), the hydraulic pressure at external water source is higher than P1, forces flushing pipe 15 to enter siphon promotion to guarantee that the water energy at external water source enough passes through
Pipe 13；It forces flushing pipe 15 to be equipped with and forces flushing valve.External water source is routine techniques, not shown.
Three-way connection 16 is connected at the top of water tank with strainer 1, and three-way connection to drainage water inlet pipe 8 and siphon recoil tube 9
16 are connected.
Recoil 2 open top of discharge casing and its left end connection drainpipe 12；It is set along the longitudinal direction in recoil discharge casing 2
There is an overflow weir 17, the left and right inside discharge casing 2 that will recoil of overflow weir 17 is divided into drainage cavity and water seal cavity；Drainage cavity is located at overflow weir
17 lefts are simultaneously connected with drainpipe 12, and drainpipe 12 is connected to drainage cavity bottom, and water seal cavity is located at 17 right of overflow weir；Recoil
Downpipe 11 extends downwardly into water seal cavity and the bottom end for the downpipe 11 that recoils is lower than 17 top of overflow weir.
The setting of overflow weir 17 can guarantee that the water level in water seal cavity is higher than recoil 11 bottom end of downpipe, to form liquid
Envelope；Drainpipe 12 can be connected to the drainage cavity bottom of recoil discharge casing 2 again simultaneously, convenient for arrangement drainpipe 12.
Siphon between A point and B point promotes pipe 13 to be equipped with undergauge section 18, and the caliber of undergauge section 18 is other than undergauge section 18
Siphon promotes less than half of the caliber of pipe 13；Siphon other than undergauge section 18 promotes the caliber of pipe 13 to be less than siphon recoil tube 9
Caliber a quarter；
Undergauge section 18 is connected with siphon accelerating tube 19, and siphon accelerating tube 19 is connected with high water tank 20, high water tank 20
Bottom end is higher than the junction of siphon accelerating tube 19 and undergauge section 18；The caliber of siphon accelerating tube 19 is less than siphon and promotes pipe 13.
When work, water to be filtered passes through filter layer by intake antrum 3 by entering 1 top of water tank with strainer to drainage water inlet pipe 8
4 enter water chamber 5, and when passing through filter layer 4, water to be filtered is filtered by filter layer 4, and the impurity in water is trapped within filter layer
At 4；Filtered water purification enters clear water reserviors 7 by water pipe 6 by water chamber 5.
If in long-term work, the impurity that filter layer 4 retains is more and more, filter layer 4 without manual control
Filtration resistance is increasing, and the water level in siphon recoil tube 9 gradually rises with 4 being gradually increased for filtration resistance of filter layer.When siphon is anti-
When waterborne in washing pipe 9 rises to top, water first promotes pipe 13 to fall by siphon, and water generates drainage when to falling, by rainbow
Inhale the air extraction in accelerating tube 19.Since the hydraulic pressure in high water tank 20 is higher, and the caliber of siphon accelerating tube 19 is less than rainbow
It inhales and promotes pipe 13, and the caliber of siphon promotion pipe 13 is less than a quarter of the caliber of siphon recoil tube 9, therefore siphon accelerating tube
Gas in 19 can relatively very be easy emptying, and then can be easily created siphonage.Rainbow is formed in siphon accelerating tube 19
After suction phenomenon, the water in high water tank 20 continually enters siphon promotion pipe 13 by siphon accelerating tube 19 and falls, Jin Erti
The high drainage to exhaust pipe 14.Air accumulation in siphon recoil tube 9 is in the highest point for tilting pipeline section 10, in siphon
Under promoting in pipe 13 under overboard drainage, the gas for tilting the highest point of pipeline section 10 is downwardly into rainbow by exhaust pipe 14
It inhales accelerating tube 19 and is discharged into recoil discharge casing 2.When the gas of the highest point of inclination pipeline section 10 is taken out to the greatest extent, in siphon recoil tube 9
Inside it is formed siphonage.The caliber of siphon recoil tube 9 is thicker, thus the water flow to recoil is larger, filtering in water tank with strainer 1
Water afterwards can also flow back to back through the water in filter layer 4(clear water reserviors 7 from bottom to top), it is miscellaneous by what is retained in filter layer 4
Matter is taken away, and cleaned filtering layer 4 is played the role of.Filter layer 4 after backwash is regenerated, and can normally be filtered again
Previous homogeneous system cannot manually open backwash process, and the water level in siphon recoil tube 9 can only be waited to rise to
Top, the filtration resistance of filter layer 4 is very big at this time, not can be carried out normal filtration.
Backwash process then can be manually opened using the utility model.Even if the water level in siphon recoil tube 9 does not rise
It to top, when artificial decision is backwashed, opens and forces flushing valve, under the hydraulic pressure effect at external water source, water passes through pressure
Flushing pipe 15 enters the top that siphon promotes pipe 13, then promotes to form the water flow to whereabouts in pipe 13 in siphon, to pass through
Exhaust pipe 14 is forced to take away the gas for tilting the highest point of pipeline section 10.Since recoil 11 lower end of downpipe is by water seal, because
This forms negative pressure in siphon recoil tube 9.As the gas of the highest point of inclination pipeline section 10 is constantly taken away, siphon recoil tube 9
Interior water is drawn to the highest point of inclination pipeline section 10 upwards, to be fallen by recoil downpipe 11 and the shape in siphon recoil tube 9
At siphonage, take away filtered water back through filter layer 4, by the impurity retained in filter layer 4 from bottom to top.Referring to
Backwash process is manually opened before timing section, can prevent set period from backwash phenomenon occurs, can also be connect to avoid filter layer
Backwash process is just opened when nearly blocking.
Above embodiments are only to illustrate rather than limit the technical solution of the utility model, although referring to above-described embodiment pair
The utility model is described in detail, those skilled in the art should understand that: still can to the utility model into
Row modification or equivalent replacement should all without departing from any modification or partial replacement of the spirit and scope of the utility model
Cover in the scope of the claims of the utility model.