FR3069587A1 - METHOD FOR STARTING A FILTRATION PUMP OF A WATER-FILLED PLANT AND PRIMING CONNECTION FOR THE IMPLEMENTATION OF THE METHOD - Google Patents

Abstract

The pump, pool or sprinkler system has a suction inlet port (20), a discharge outlet port (22), a bleed outlet port (26) and a port of inlet (25) for injection of priming water which is closed, the pump stopped. The purge outlet port (26) is opened, water is injected into the pump (7) through the purge port (26) and the pump (7) is started. The feeding of the pump (7) and the suction pipe ensures the priming of the pump (7). The priming fitting has an inlet port (28) for connection to a garden hose, and an outlet port (30) for connection to the purge outlet port (26) of the pump (7). .

Description

METHOD OF PRIMING A FILTER PUMP OF A SYSTEM FILLED WITH WATER AND PRIMING CONNECTION FOR IMPLEMENTING THE METHOD

The field of the invention is essentially that of swimming pools.

A swimming pool is a basin to which is associated a technical room in which there is mainly a filtration pump, associated with a filter, generally with sand or cartridge, through which the water of the basin continuously flows after it has been filled, precisely to filter this water permanently. The basin is connected to the pump by several suction pipes and a discharge pipe. Generally still, to a filtration pump are connected suction pipes connected, respectively, to a bottom drain, to “skimmers”, to a socket for manual broom.

When you put the pool out of service, in full wintering, so when you have emptied all the water from the technical room, you stop the pump - which can be at a level higher than that of the surface of the pool water - and the water in the pump and at least in the adjacent portion of the suction pipes flows into the basin, in any case, towards the basin.

When the swimming pool is put back into service, you must prime the filtration pump. To do this, open the pump by removing its top cover, inject water into the pump from above, which should descend by gravity into the filtration pipes connected at the bottom of the pump, close the pump and the pump is started. It is also possible to inject water through the pump pre-filter.

But a problem frequently arises.

Indeed, a suction pipe may have been installed incorrectly, with unevenness, elbows and other cant, to the point that air pockets are there, so that the pump cannot suck the water, with the risk, not to mention the flooding of the room, that the pump undergoes destructive heating. Even admitting that, by repeating the priming steps, we end up priming the pump, priming only takes place after a much too long time.

It will be noted that this problem of re-priming a filtration pump can just as easily arise during the first priming of a new pump.

It will also be noted that the same problem can also arise in an automatic watering installation which includes a booster, very similar to a swimming pool filtration pump, but without a pre-filtration device.

The invention of the present application therefore aims to solve the problem presented above and therefore relates to a method of priming a filtration pump of an installation filled with water, connected to the installation by at least one pipe of suction and discharge line for water in the installation, the pump comprising a suction inlet port, a discharge outlet port, a purge outlet port at the bottom of the pump and a port inlet for priming water injection in the upper part, process characterized in that:

- the priming water injection inlet port of the pump being closed and the pump stopped,

- the purge outlet port is opened,

- water is injected into the pump through the purge outlet port and

- the pump is started,

- the boosting of the pump and the suction pipe ensuring, after evacuation of possible air pockets in the water of the installation, priming of the pump.

Note that the priming process can only be implemented after emptying the installation of its water.

Naturally, after priming, the injection of water is stopped by the purge outlet port which is closed, while leaving the pump in operation.

If air is drawn into the pump during these last operations, it is too small to prime the pump.

Thanks to the process of the invention, any risk of overheating of the pump or deterioration of equipment is avoided. Priming is done without constraint, effort and with ease.

If the installation comprises several suction pipes, either they do not have a shut-off valve, and, then, the priming process is implemented simultaneously with all the pipes, or the pipes have a shut-off valve and, then, one proceeds to the process of starting pipe by pipe with its shutter valve open, the other valves being in the shutter position.

If the discharge line can be blocked, it is closed before opening the purge outlet port and the valve is released before restarting the pump, which allows a much faster feeding.

The priming process can therefore be applied to a swimming pool filtration pump, which is connected to a basin filled with water, the discharge pipe being intended to discharge the water into the basin.

The priming process can also be applied to an automatic sprinkler installation, the filtration pump being qualified as a booster then without a pre-filtration device and the discharge line being intended to discharge water into pipes and nozzles watering system.

The invention also relates, as an intermediate product which could be supplied for the implementation of the method of the invention, and therefore proceeding on this basis from the same inventive concept, a priming connector comprising an input port, arranged to be connected to a garden hose, and an outlet port, arranged to be connected to a purge outlet port of a filtration pump of a group water installation comprising a swimming pool and a water installation watering, for the implementation of the method of the invention.

The filtration pump purge outlets generally comprising a threaded port closed by a threaded plug and the garden hoses generally comprising a lance connected to the hose by two so-called male and female quick couplings, respectively, the coupling of the invention comprises a male threaded output port and a male quick connect input port.

By quick connection is meant a connection by means of two male and female fittings arranged to cooperate by snap-fastening or clipping or bayonet cooperation.

Preferably, the connector of the invention comprises, between the two inlet and outlet ports, a movable closure means, of the quarter-turn rotary type.

The invention will be better understood on reading the following description made with reference to the appended drawing, in which:

- Figure 1 is a sectional view of a swimming pool with the main equipment of its technical room and the pipes connecting the pool to these equipment;

- Figure 2 is a view of a swimming pool filtration pump, with its various suction pipes;

FIG. 3 is a side view of a connector for implementing the method of the invention and

FIG. 4 is a side view of a filtration pump on which the connector of FIG. 3 is mounted.

The swimming pool of figure 1 comprises a basin 1, filled with water, with a port 2 for filling, better discharge, a bottom drain 3, for sucking water or emptying the basin, skimmers - only one 4 is visible in the figure - to draw water from the surface, and a socket 5 for the manual broom, for cleaning the bottom and walls of the basin 1.

The water in the pool, when the pool is running, flows from pool 1 to a filter 6, here a sand filter, via a filtration pump 7, and from filter 6 to pool 1.

The bottom drain 3, the skimmers 4 and the brush outlet 5 are respectively connected to the pump 7 by three suction pipes 8, 9, 10 united in a single pipe 11 upstream of the pump 7.

Upstream of the suction pipe 11 connected to the pump 7, shut-off or stop valves 12, 13 are mounted on the suction pipes 8, 9 of the bottom drain 3 and of the skimmers 4 .

Between the filtration pump 7 and the filter 6 is mounted a multi-way valve 14 connected to the pump 7 by a discharge line 15, to the filter 6, by two water inlet pipes to be filtered 16 and water outlet filtered 17, in the basin 1, by another discharge line 18 and, here, in the sewer 50 by a line 51.

The filtration pump 7 installed here comprises an inlet pump body 19, with a suction inlet port 20, and an outlet pump body 21, with a discharge outlet port 22.

The pump impeller, not visible in the drawing, can be rotated by a motor 23. The inlet pump body 19 in FIG. 4 has, in the upper part, an upper cover 24 which, when it is removed, clears an opening qualified here as an inlet port 25 for priming water injection, through which operators used to inject water to prime the pump after a period of non-operation. The inlet pump body 19 of the filtration pump 7 also comprises, at the bottom, an orifice, or outlet port, for purging 26 which, in operation, is closed by a plug.

The priming of the pump 7 is carried out by a process which makes use of a particular priming fitting 27 (FIG. 3). The connector 27 has a male inlet nozzle 28, designated here as an inlet port, which can be connected to a garden hose. The most available garden hoses on the market include a lance generally mounted on the hose via a so-called quick coupling. This is why, the inlet end piece of the connector 27 is shaped so as to be able to cooperate with a quick coupling of the garden hose and therefore therefore includes an annular peripheral groove 29, for receiving snap lugs provided on the integral connection of a garden hose.

The connector 27 also includes a male outlet nozzle 30, designated here by outlet port, which, in this case, is threaded so that it can be screwed into the female bleed outlet port 26 of the pump 7 which is here found to be tapped.

The two end pieces 28, 30 of the connector 27, of generally tubular shape, are here coaxial and a shutter butterfly 31 is disposed inside the connection between the two end pieces, actuable by means of an external lever 32. The butterfly 31 is mounted here rotary on a quarter turn.

The priming method of the invention will now be able to be described.

The filtration pump 7 having been stopped for a certain time and emptied of its water, and therefore having to re-prime it, and the bottom drain 3 being in the basin, which is then here emptied of its water, we closes the stop valve 13 of the skimmers 4 and the multi-way valve 14 and therefore also the discharge outlet port 22 of the pump, while leaving the cover 24 in the closed position.

Note that if the bottom drain 3 had not been in the basin, it would have been necessary to close the valve 12 and leave the stop valve 13 of the skimmers open, while ensuring that the water level is at three quarters in the skimmers 4 and therefore start the priming with the suction line 9 of the skimmers.

With the filtration pump still stopped, the purge plug of the pump is removed to open its purge outlet port 26. The connector 27 is screwed into the purge outlet port 26 by its outlet nozzle 30, with interposition of an O-ring 33 (Figure 3). The connector 27 is connected to a garden hose by its inlet nozzle 29.

Through the garden hose and the priming connector 27, water is injected into the inlet pump body 19 through the purge outlet port 26, it is expected that the pipes 11, 8 are filled with water and the multi-way valve 14 is opened. The pump is started. Optionally, you may want to stop the pump 7 for a few moments so that the pipes 11, 8 are filled with water and restart the pump again and, several times in bursts until the pump is primed. The boosting of the pump and of the suction pipes 11, 8 pushes any air pockets in the basin 1, which can be seen, and it ensures the priming of the pump. Of course, after priming the pump 7, the connector 27 is closed using the lever 32, the garden hose is removed and, leaving the pump running, the connector 27 is unscrewed from the pump and it is filled in. purge 26 by its plug. The air that could be sucked in then is not enough to defuse the pump.

The method of the invention offers the advantage of considerably accelerating the priming time, from five to ten times faster than traditional priming. For example, for a filtration pump 5 m from the pool and simple filtration, priming can be carried out in 30 to 60 s; for a complex installation and a technical room far from the basin, it is necessary to count, according to the method of the invention, to be able to prime the pump in 15 to 30 minutes, against 45 to 60 minutes according to the traditional method.

In some installations, the filtration pump can be connected to several suction pipes on which stop valves are mounted. With reference to FIG. 2, in which the elements similar to those of FIG. 1 are associated with the same reference numbers, the filtration pump 7 is connected to the pipe 8 for the suction of the bottom drain, with interposition of the valve. 12, to the suction line 9 of the skimmers, with the interposition of the valve 13, and to the line 10 of the brush connection, with the interposition of a stop valve 40. It will be noted that at the outlet of the multi-way valve 14, a bromine / chlorine metering device 42 has been mounted, in parallel on a stop valve 41 mounted on the delivery pipe 18, and that the pump 7 is controlled by an electrical filtration cabinet 43.

In the case of the assembly of FIG. 2, for priming the pump, the suction pipe is carried out by suction pipe. Thus, starting with the suction pipe 8 of the bottom drain 3, the suction valves 13, 40 are closed and the valve 12 is slowly opened.

After having, so to speak, purge the pipe 8, the valve 12 is closed and the valve 40 is kept closed, and the valve 13 is slowly opened on the skimmers' pipe. Then we proceed with the line 10 of the brush outlet, closing the valves 12, 13 and slowly opening the valve 40.

Claims (12)

1. Method for priming a pump (7) for filtering an installation (1) filled with water, connected to the installation by at least one suction pipe (11) and one pipe (18) of discharge of water into the installation (1), the pump comprising a suction inlet port (20), a discharge outlet port (22), a purge outlet port (26) at the bottom of the pump (7) and an inlet port (25) for injecting priming water in the upper part, method characterized in that: - the priming water injection inlet port of the pump being closed and the pump stopped, - the purge outlet port (26) is opened, - water is injected into the pump (7) through the purge outlet port (26) and - the pump (7) is started, - the boosting of the pump (7) and of the suction pipe (11) ensuring, after evacuation of possible air pockets in the water of the installation, priming of the pump (7). 2. Method according to claim 1, according to which, the discharge line (18) being able to be closed (41), it is closed before opening the port (26) for the purge outlet and the closure is released (41). ) before restarting the pump (7). 3. Method according to one of claims 1 and 2, according to which, several suction pipes (8, 9, 10) being connected to the filtration pump (7), the priming steps are carried out simultaneously with all of the suction lines. 4. Method according to one of claims 1 and 2, according to which several pipes (8, 9, 10) being connected to the filtration pump (7) and comprising a shut-off valve (12, 13, 40), proceed pipe by pipe with its shutter valve open, the other valves being in the shutter position. 5. Method according to one of claims 1 to 4, according to which the installation is an automatic watering installation. 6. Method according to one of claims 1 to 4, according to which the filtration pump (7) is a swimming pool filtration pump which is connected to a basin (1). 7. Method according to claim 6, according to which, a drain (3) being disposed at the bottom of the basin (1), the priming is started with the pipe (8) for suction of the bottom drain (3). 8. Method according to one of claims 1 to 7, according to which the pump (7) is stopped and restarted, several times in burst. 9. Method according to one of claims 1 to 8, according to which the installation of its water is first emptied before starting the priming of the pump. 10. Priming fitting comprising an inlet port (28), arranged to be connected to a garden hose, and an outlet port (30), arranged to be connected to a drain outlet port (26) a pump (7) for filtration of a group water installation comprising a swimming pool (1) and a sprinkler installation, for implementing the method of one of claims 1 to 7. 11. Priming connector according to claim 10, in which there is provided a male outlet port (30) threaded and a male inlet port (28) for quick connection (29). 12. Priming connection according to one of claims 10 and 11, wherein there is provided, between the two input and output ports (28, 30), a means (31) for movable shutter.