DE102020134758B4 - FLUSHING SYSTEM FOR FLUSHING PIPES - Google Patents

Abstract

System rinsing system (100) for rinsing pipelines (101), with:- an inlet (103) for admitting a rinsing liquid (109) for rinsing the pipelines (101);- a pulsator (127) for transmitting mechanical vibrations to the rinsing liquid ( 109); and- an outlet (107) for discharging the vibrated rinsing liquid (109), wherein the pulsator (127) is arranged, the air duct (129) to a nozzle (111-1,..., 111-5) inside of a mixing container (105) with a pulsating pressure.

Description

The present invention relates to a flushing system for flushing pipelines and a method for flushing pipelines.

Pipe systems for the drinking water supply in buildings can get dirty over time and be contaminated with a biofilm, so that germ contamination cannot be ruled out. If this is the case, these pipe systems must be cleaned. For this purpose, the pipe systems are rinsed with a rinsing liquid, such as water. During this cleaning, all dirt and germs should be removed from the pipe systems as far as possible.

US 2018/0147611 A1 and DE 102009009938 A1 each show a flushing system in which a flushing liquid is subjected to mechanical vibrations.

It is the technical object of the present invention to improve the cleaning effect of the flushing liquid when cleaning pipelines.

This object is solved by the objects with the technical features according to the independent claims. Advantageous embodiments are the subject matter of the dependent claims, the description and the drawings.

According to the invention, the technical problem is solved by a flushing system for flushing pipelines, with an inlet for admitting a flushing liquid for flushing the pipelines, a pulsator for transmitting mechanical vibrations to the flushing liquid and an outlet for dispensing the flushing liquid set in vibration. The technical advantage achieved by the mechanical vibrations is that the cleaning effect of the rinsing liquid within the pipelines is increased. In the system flushing system according to the invention, the pulsator is arranged to apply a pulsating pressure to the air line to a nozzle in the interior of a mixing container. This achieves the technical advantage, for example, that the vibrations can be transmitted to the rinsing liquid in a simple manner.

In a technically advantageous embodiment of the system flushing system, the pulsator is designed to generate vibrations with a frequency of between 5 and 15 Hz. This achieves the technical advantage, for example, that deposits on the walls of the pipelines can be loosened and thus removed particularly effectively.

In a further technically advantageous embodiment of the system flushing system, the frequency of the pulsator can be changed. This achieves the technical advantage, for example, that the vibrations can be adapted to the pipelines to be cleaned and a high cleaning effect is achieved.

In a further technically advantageous embodiment of the system flushing system, the pulsator is a pulsator that can be operated with compressed air. This achieves the technical advantage, for example, that electrical connections and lines can be dispensed with.

In a further technically advantageous embodiment of the system flushing system, the compressed air range for operating the pulsator is between 3 and 8 bar. This achieves the technical advantage, for example, that the pipelines can be cleaned without being damaged.

In a further technically advantageous embodiment of the system flushing system, the air flow to the pulsator can be interrupted by a valve. This achieves the technical advantage, for example, that the pulsator can be deactivated in a simple manner.

In a further technically advantageous embodiment of the system flushing system, the nozzle is formed by a spherical nozzle, a full jet nozzle and/or a round jet nozzle. This achieves the technical advantage, for example, that air bubbles for cleaning the pipelines can be generated at the same time as the vibrations are being transmitted.

In a further technically advantageous embodiment of the system flushing system, a backflow preventer is arranged between the nozzle and the pulsator. This achieves the technical advantage, for example, that the vibrations can be efficiently transmitted to the rinsing liquid.

In a further technically advantageous embodiment of the system flushing system, the pulsator is arranged in a metal housing. This achieves the technical advantage, for example, that the pulsator is protected from mechanical damage.

According to the invention, the technical problem is also solved by a method for flushing pipelines, with the steps of admitting a flushing liquid for flushing the pipelines at an inlet of a system flushing system, transferring mechanical vibrations to the flushing liquid using a pulsator, and dispensing the in set vibrations Flushing liquid from an outlet of the system flushing system. As a result, the same technical advantages are achieved as by the system flushing system described above according to the invention.

In a technically advantageous embodiment of the method, the vibrations are generated with a frequency between 5 and 15 Hz. This also achieves the technical advantage, for example, that deposits on the walls of the pipelines can be particularly effectively loosened and thus removed.

In a further technically advantageous embodiment of the method, the pulsator is operated with compressed air. This also achieves the technical advantage, for example, that electrical connections and lines can be dispensed with.

In a further technically advantageous embodiment of the method, the pulsator is operated in a compressed air range between 3 and 8 bar. This also achieves the technical advantage, for example, that the pipelines can be cleaned without being damaged.

In a further technically advantageous embodiment of the method, the pulsator applies a pulsating pressure to the air line to a nozzle inside a mixing container. This also achieves the technical advantage, for example, that the vibrations can be transmitted to the rinsing liquid in a simple manner.

Also shown is a system rinsing system for rinsing pipelines, with an inlet for admitting a rinsing liquid for rinsing the pipelines, a mixing container with a nozzle for generating air bubbles in the rinsing liquid and an outlet for dispensing the rinsing liquid with the air bubbles generated. The flushing liquid enriched with air bubbles has the technical advantage that the pipes can be cleaned better and germs die off more quickly. The system flushing system can include one or more nozzles for generating the air bubbles. Air bubbles of different numbers and sizes can be generated inside the mixing container by means of different nozzles. In this way, the cleaning effect can be adapted to the actual conditions of the pipe system.

In a technically advantageous embodiment of the system flushing system, the nozzle is formed by a spherical nozzle. For example, the ball nozzle has the technical advantage that small, even air bubbles are added to the flushing liquid, which have an abrasive or grinding effect on the pipe system.

In a further technically advantageous embodiment of the system flushing system, the nozzle is formed by a full jet nozzle. For example, the full jet nozzle has the technical advantage that many small air bubbles can be added in spurts.

In a further technically advantageous embodiment of the system flushing system, the nozzle is formed by a round jet nozzle. For example, the round jet nozzle has the technical advantage that large air bubbles can be generated to remove deposits.

In a further technically advantageous embodiment of the system flushing system, the size of the air flow through the nozzle can be controlled. If multiple nozzles are used, the airflow of each nozzle can be independently controllable from the other nozzles. This achieves the technical advantage, for example, that the generation of air bubbles in the rinsing liquid can be controlled in a targeted manner.

In a further technically advantageous embodiment of the system flushing system, the system flushing system includes a compressor for generating compressed air for the nozzle. This achieves the technical advantage, for example, that an external compressed air connection can be dispensed with and the compressed air can be generated autonomously within the system flushing system.

In a further technically advantageous embodiment of the system rinsing system, the mixing container includes a velocity or venturi nozzle for homogenizing the mixture of the rinsing liquid and the air bubbles. This achieves the technical advantage, for example, that the velocity of the flushing liquid can be used to increase the velocity of the air flow.

In a further technically advantageous embodiment of the system flushing system, the system flushing system comprises a flow sensor for detecting a volume flow of the flushing liquid entering. This achieves the technical advantage, for example, that the generation of air bubbles in the rinsing liquid can be controlled as a function of the volume flow.

In a further technically advantageous embodiment of the system flushing system, the system flushing system comprises a temperature sensor for detecting a temperature of the flushing liquid entering. As a result, the technical advantage is achieved, for example, that the generation of air bubbles sen in the rinsing liquid can be controlled depending on the temperature.

In a further technically advantageous embodiment of the system flushing system, the system flushing system comprises a pressure sensor for detecting a pressure of the flushing liquid entering. This achieves the technical advantage, for example, that the generation of air bubbles in the rinsing liquid can be controlled as a function of the pressure.

In a further technically advantageous embodiment of the system flushing system, the system flushing system comprises a pressure sensor for detecting a pressure of the flushing liquid dispensed. This achieves the technical advantage, for example, that the pressure applied to the pipeline system can be monitored.

Also shown is a method for rinsing pipelines, with the steps of admitting a rinsing liquid for rinsing the pipelines into an inlet of a system rinsing system, generating air bubbles in the rinsing liquid with a nozzle in a mixing container and dispensing the rinsing liquid with the air bubbles generated from an outlet of the system flushing system. The method achieves the same technical advantages as the system flushing system described above.

In a technically advantageous embodiment of the method, the air bubbles are generated by a ball nozzle, a solid jet nozzle and/or a round jet nozzle. This achieves the technical advantage, for example, that air bubbles of different sizes can be generated efficiently, so that a depth effect is achieved.

In a further technically advantageous embodiment of the method, the size of the air flow through the nozzle is controlled. The size of the air flow can be controlled, for example, as a function of a volume flow, a temperature and/or a pressure of the washing liquid entering. This achieves the technical advantage, for example, that the generation of air bubbles can be changed depending on the input parameters.

In a further technically advantageous embodiment of the method, the compressed air for the nozzle is generated by a compressor of the system flushing system. This achieves the technical advantage, for example, that the system flushing system can be operated autonomously without a compressed air connection.

Also shown is a system rinsing system for rinsing pipelines, with an inlet for admitting a rinsing liquid for rinsing the pipelines, a feed device for dissolving a fluid substance in the rinsing liquid and an outlet for dispensing the rinsing liquid with the dissolved substance. This achieves the technical advantage that the original rinsing liquid can be adapted to different cleaning requirements as required.

In a technically advantageous embodiment of the system flushing system, the feed device is arranged in a mixing container for mixing the flushing liquid with the fluid substance. This achieves the technical advantage, for example, that the fluid substance is distributed homogeneously within the rinsing liquid.

In a further technically advantageous embodiment of the system flushing system, the system flushing system comprises a reservoir or a supply line connection for the fluid substance. This achieves the technical advantage, for example, that the system flushing system can be operated autonomously or the fluid substance can be supplied from outside in any desired quantity.

In a further technically advantageous embodiment of the system flushing system, the fluid substance is gaseous carbon dioxide or oxygen. This achieves the technical advantage, for example, that germs in the pipes can be killed.

In a further technically advantageous embodiment of the system flushing system, the system flushing system comprises a pressure reducer for reducing the gas pressure, which is arranged upstream of the feed device. This achieves the technical advantage, for example, that damage to the pipelines or the mixing tank due to high pressures is prevented.

In a further technically advantageous embodiment of the system flushing system, the feed device is formed by at least one mist nozzle. This achieves the technical advantage, for example, that the gas dissolves well within the rinsing liquid. The gas can include, for example, carbon dioxide or carbonic acid. In addition, the mist nozzle generates a spray mist and is used to "fog" the system flushing system. This enables the piping of the system flushing system to be disinfected so that it is intrinsically safe after use. Automatic disinfection takes place by "fogging" the entire pipework using a disinfectant spray mist through the control and system units of the system flushing system position. This ensures that the drinking water is intrinsically safe and sterile.

In a further technically advantageous embodiment of the system flushing system, the system flushing system includes a control valve for controlling the gas flow. This achieves the technical advantage, for example, that the gas can be added in a desired concentration.

In a further technically advantageous embodiment of the system flushing system, the fluid substance is a liquid. This achieves the technical advantage, for example, that the fluid substance can be stored and handled in a simple manner.

In a further technically advantageous embodiment of the system flushing system, the system flushing system includes a pump for transporting the liquid. The pump can be an inoculation pump. This achieves the technical advantage, for example, that the liquid can be added in metered amounts.

In a further technically advantageous embodiment of the flushing system, the liquid comprises a color solution for coloring the flushing liquid. This achieves the technical advantage, for example, that leakage of the rinsing liquid from the pipelines can be visually detected. On the one hand, the signal colors serve to protect against using the water as drinking water. On the other hand, the course of the pipe can be tracked. Different color solutions can be used for different connectors or piping.

In a further technically advantageous embodiment of the system flushing system, the system flushing system includes a viewing window between the feed device and the outlet for detecting the color of the flushing liquid. This achieves the technical advantage, for example, that the coloring of the rinsing liquid can be monitored optically.

Also shown is a method for rinsing pipelines, with the steps of admitting a rinsing liquid for rinsing the pipelines into an inlet of a system rinsing system, dissolving a fluid substance in the rinsing liquid by a feed device and dispensing the rinsing liquid with the dissolved substance from a System flushing outlet. The method achieves the same technical advantages as the system flushing system described above.

In a technically advantageous embodiment of the method, the fluid substance is mixed with the rinsing liquid in a mixing container. This also achieves the technical advantage, for example, that the fluid substance is distributed homogeneously within the rinsing liquid.

In a further technically advantageous embodiment of the method, the fluid substance is stored in a reservoir within the system rinsing system or is supplied from the outside via a feed line connection. This achieves the technical advantage, for example, that the system flushing system can be operated autonomously or the fluid substance can be supplied from outside in any desired quantity

In a further technically advantageous embodiment of the method, the fluid substance is a gas or a liquid. This achieves the technical advantage, for example, that pumps can be dispensed with or the fluid substance can be stored and handled in a simple manner.

Exemplary embodiments of the invention are shown in the drawings and are described in more detail below.

• 1 eine schematische Ansicht einer Systemspülanlage;
• 2 eine schematische Ansicht eines Mischbehälters der Systemspülanlage;
• 2A eine Kugeldüse;
• 2B eine Vollstrahldüse;
• 2C eine Rundstrahldüse;
• 3 eine schematische Ansicht eines Pulsatorsystems der Systemspülanlage;
• 4 eine schematische Ansicht eines Gassystems der Systemspülanlage;
• 5 eine schematische Ansicht eines Farbsystems der Systemspülanlage; und
• 6 ein Blockdiagram eines Verfahrens zum Spülen von Rohrleitungen.

Show it:

• 1 a schematic view of a system flushing system;
• 2 a schematic view of a mixing tank of the system flushing system;
• 2A a ball nozzle;
• 2 B a full jet nozzle;
• 2C a round jet nozzle;
• 3 a schematic view of a pulsator system of the system flushing system;
• 4 a schematic view of a gas system of the system flushing system;
• 5 a schematic view of a color system of the system flushing system; and
• 6 a block diagram of a process for flushing pipelines.

1 shows a schematic view of a system flushing system 100. The system flushing system 100 is used for flushing pipelines 101, which are built into buildings for the water supply, for example. The portable flushing system 100 can be placed at a convenient location in the building where it can be connected to the plumbing 101 of the building.

To carry out the rinsing process, a rinsing liquid 109 such as tap water or drinking water is introduced into the system rinsing system 100 at an inlet 103 . For this purpose, the system rinsing system 100 has a connection device at the inlet, to which a hose can be connected, for example, through which the rinsing liquid 109 is fed.

After the flushing liquid 109 has been introduced into the system flushing system 100 , its temperature T is determined via a temperature sensor 119 and its pressure P via a pressure sensor 117 . In addition, the flow rate of the rinsing liquid 109 is determined by means of a flow sensor 113 which is arranged between two check valves RV1 and RV2. These parameters can later be used to control the system flushing system 100 . The two non-return valves RV1 and RV2 can prevent the flushing liquid 109 from flowing back unintentionally or from being routed through it in the “wrong” direction.

The rinsing liquid 109 is then conducted into a mixing container 105 inside the system rinsing system 100 . In this mixing container 105, the rinsing liquid 109 is prepared for the intended cleaning purpose. Air bubbles can be added to the rinsing liquid 109 , for example, or the rinsing liquid 109 can be mixed with different substances that are used to clean the pipelines 101 . For this purpose, the mixing container 109 provides a volume in which the mixing processes can take place.

After the prepared rinsing liquid 109 emerges from the mixing container 105, the pressure P of the rinsing liquid 109 is again determined via a pressure sensor 121. In this way, overpressures of the flushing liquid 109 can be detected, so that damage to the pipelines 101 can be prevented. The rinsing liquid prepared for cleaning the pipelines is discharged from an outlet 107 of the system rinsing system 100 and fed to the pipelines 101 of the building, where it unfolds the cleaning effect. The rinsing liquid is then discharged from the pipelines 101 and discarded through the normal tapping points of the pipelines. Deposits and germs can be removed from the pipelines 101 by this rinsing.

2 shows a schematic view of a mixing tank 105 of the system rinsing system 100. The mixing tank 105 has a flow cross section that is larger than that of the supply line 153, so that the flow rate of the rinsing liquid 109 within the mixing tank 105 slows down accordingly. As a result, the rinsing liquid 109 can easily be enriched with different functional substances or air bubbles. In addition, a homogeneous mixing of the rinsing liquid 109 with the functional substances can be brought about within the mixing container 105 . In this way, the rinsing liquid 109 can be conditioned for the cleaning process.

The mixing container 105 comprises a multiplicity of different nozzles 111-1, ..., 111-5, 115 and 125-1, ..., 125-3. These nozzles are made of stainless steel so that they have a long service life.

The nozzle 1111 is, for example, a spherical nozzle that is installed in the center of the mixing container 105 in the direction of flow ( 2A ). The ball nozzle has a ball head with a large number of openings from which compressed air emerges. For example, the ball nozzle has 40 individual bores and enables compressed air to be discharged at an angle of 240° in the surrounding rinsing liquid. As a result, a large number of air bubbles are added to the flushing liquid 109, which have a grinding or abrasive effect in the pipelines 101. In general, however, another embodiment of a spherical nozzle can also be used.

Nozzles 111-2 and 111-3 are full jet nozzles that are also installed in the direction of flow ( 2 B ). The full jet nozzles generate a targeted, pinpoint air jet. These full-jet nozzles generate a large number of air bubbles, which can be added to the rinsing liquid 109 in spurts.

Nozzles 111-4 and 111-5 are round jet nozzles that are also installed in the direction of flow ( 2C ). The round jet nozzles are, for example, micro-multi-channel nozzles that generate a punctiform air jet. These multi-channel nozzles have several parallel outlet channels for the compressed air. These round-jet nozzles generate large air bubbles in the mixing container, which are particularly suitable for removing the deposits in the pipelines 101.

The nozzle 115 is a Velocity or Venturi nozzle, which is also installed in the center of the mixing tank in the direction of flow. The Velocity or Venturi nozzle uses the flow velocity of the irrigating liquid 109 to increase the velocity of the air flow. The Velocity or Venturi nozzle creates rapid air movement through the Venturi effect. In this way, a homogeneous air/rinsing liquid ratio can be generated by means of turbulent or alternatively intermittent mixing.

The nozzles 125-1, 125-2 and 125-3 are mist nozzles that are installed on the edge of the mixing tank 105 in the flow direction. These mist nozzles are able to produce a fine distribution. Carbon dioxide can be dissolved as a fluid substance in the rinsing liquid 109 through these mist nozzles. In the case of water as the rinsing liquid 109, the carbonic acid dissolved in this way shifts the pH value into the acidic range of pH 6 to 5. As a result, the water has an antibacterial effect within the pipelines 101 and on the pipe walls. Within the plumbing 101, carbon dioxide bubble expulsion works best on rough and jagged debris that is lifted by the carbon dioxide bubbles. This also allows the cleaning effect of the flushing liquid 109 in the pipelines 101 to be increased again.

In general, however, a different type, a different combination and a different number of nozzles can also be provided in order to generate the air bubbles within the mixing container 105 . The air flow through each of the nozzles 111-1, ..., 111-5, 115 and 125-1, ..., 125-3 can be controlled individually by appropriate control electronics. Different time profiles can be run for each of the nozzles 111-1, . . . , 111-5, 115 and 125-1, .

The condition and the air flow through the nozzles 111-1,..., 111-5, 115 and 125-1,..., 125-3 can be displayed on a touch-sensitive screen (touch screen) and can be controlled via this. All relevant processes can be displayed and controlled on the screen. In addition, individual nozzles 111-1, . . . , 111-5, 115 and 125-1, . In addition, the system flushing system 100 includes a data interface via which the system flushing system 100 can also be controlled from a remote computer.

The nozzles 111-1, ..., 111-5 and 115 can be controlled with variable pulse sets and/or high-frequency pulsators. These add quick pulses of air to the flow of detergent 109 and cause it to vibrate, which supports the cleaning process. Dirt in the pipes can be broken up and removed.

The mixing tank 105 is a steel tank with a flat flange plate 123 through which the supply lines to the individual nozzles 111-1, ..., 111-5, 115 and 125-1, ..., 125-3 are led, such as for compressed air or carbon dioxide. The flange plate 123 is sealed against the rest of the mixing container 105 and screwed to it at several points, so that the nozzles 111-1, ..., 111-5, 115 and 125-1, ..., 125-3 after loosening of the screws are accessible. In this way, individual nozzles 111-1,..., 111-5, 115 and 125-1,..., 125-3 can be exchanged.

When supplying the compressed air, the control electronics can also take into account the recorded parameters for the temperature, the pressure and the flow rate, so that the rinsing liquid is processed at the same time over time. If the flow rate increases, for example the air flow through the nozzles 111-1, ..., 111-5, 115 and 125-1, ..., 125-3 can be increased accordingly in order to achieve a constant cleaning effect.

The compressed air for the nozzles 111-1, . . . , 111-5, 115 and 125-1, . However, the system flushing system 100 can also include a compressed air connection, via which the required compressed air is supplied from outside via an external compressor. The available compressed air is first cleaned with activated carbon and dried by a dehumidification system.

3 shows a schematic view of a pulsator system of the system flushing system 100. The spherical nozzle 111-1 inside the mixing container 105 is constantly supplied with compressed air at a pressure P1 via an air line 129. In order to prevent compressed air from unintentionally flowing back out of the mixing container 105 , a non-return valve 131 is arranged in the air line 129 as a non-return valve. The air flow in the air line 129 is controlled by a control valve 149 . This allows specific flow rates to be set.

In addition, the air line 129 is subjected to a second pulsating pressure P2. This is supplied via a further air line 151 in which a pulsator 127 and a backflow preventer 132 are arranged. The air flow in the air line 151 is also controlled via a control valve 149 . The pulsator 127 generates periodic pressure surges with a frequency of 5 to 15 Hz. The frequency can be changed in this range by turning an adjusting screw. To protect the pulsator from damage, it is placed in a metal housing.

The pulsator 127 is operated autonomously with the supplied compressed air in the range between 3 and 8 bar, so that no additional electrical lines are required. As a result, the constant flow of air becomes a periodically pulsating air current through the pulsator 127 superimposed. In general, the pulsator 127 can also be implemented by other devices.

The pulsating air stream entering the mixing container 105 through the spherical nozzle 111-1 causes the rinsing liquid 109 in the pipelines 101 to oscillate, so that the cleaning effect of the rinsing liquid 109 in the pipelines 101 is additionally increased.

For this purpose, however, all other arrangements can generally also be used by which mechanical vibrations can be transmitted to the rinsing liquid 109 . In addition, the pulsator can also be coupled with other nozzles 111-2, ..., 111-5 or even a combination of the nozzles 111-2, ..., 111-5.

4 shows a schematic view of a gas supply system of the system flushing system 100. The gas supply system is a special form of a supply device for dissolving a fluid substance 133 in the flushing liquid 109. The fluid substance is carbon dioxide, which is stored within the system flushing system 100 in a gas bottle as a storage container 139 is saved. The carbon dioxide is fed via a pressure reducer 135, a control valve 143 and a backflow preventer 155 to the nozzles 125-1, 125-2 and 125-3, which finely distribute the carbon dioxide in the mixing container 105.

As a result, the carbon dioxide dissolves in the water as rinsing liquid 109 and causes the pH value to shift into the acidic range. As a result, the water has an antibacterial effect within the pipes 101, so that germs stuck in the pipes 101 can be killed better. A biofilm adhering to the inside of the pipelines 101 can be torn open by minimal bubbles and then transported away with blasts of air

For example, pure oxygen can also be dissolved in the flushing liquid 109, which kills anaerobic bacteria in the pipelines. In general, however, other gases can also be supplied and used as the fluid substance 133 .

5 shows a schematic view of a paint supply system of the system flushing system 100. The paint supply system is another special form of a supply device for dissolving a fluid substance 133 in the flushing liquid 109. In this case, the fluid substance is a liquid.

In the three reservoirs 141 are liquid color solutions (food colors) 137-1, 137-2 and 137-3 of red, green and blue colors as fluid substances. These are each pumped individually via a membrane pump 145-1, 145-2 and 145-3 into the mixing container 105 and mixed there with the turbulent flushing liquid 109.

Diaphragm pumps 145-1, 145-2 and 145-3 can be controlled via a bus terminal with a different number of electrical pulses. These have a duration of 20 ms, for example. Each pulse causes a stroke of the controlled membrane pump 145-1, 145-2 and 145-3. If the three primary colors red, yellow and blue are used, the rinsing liquid 109 can be colored in any desired color. In this case, different treatment sections can be identified by means of different colors. A time-consuming check using test strips at the taps can be omitted.

The flow sensor 113 can supply a signal to the control of the membrane pumps 145-1, 145-2 and 145-3, so that the color solutions 137-1, 137-2 and 137-3 can be admitted even with different volume flows, so that a constant coloring of the rinsing liquid 109 is achieved. A transparent viewing window 147 is arranged downstream of the mixing container 105, through which the rinsing liquid 109 flows and through which the coloring of the rinsing liquid 109 can also be monitored optically.

6 shows a block diagram of a method for flushing pipelines 101. In step S101, a flushing liquid 109 for flushing the pipelines 101 is admitted into the inlet 103 of the system flushing system 100. Subsequently, in step S102, a fluid substance 133 or 137-1, ..., 137-3 is dissolved in the rinsing liquid 109 by a feeder 125-1, 125-2, 125-3. In step S103, the rinsing liquid 109 with the dissolved substance 133, 137-1, 137-2, 137-3 is discharged from an outlet 107 of the system rinsing system 100 so that they can then develop their cleaning effect in the pipelines. A greater cleaning effect within the pipelines 101 can be achieved by means of the dissolved substance.

All of the features explained and shown in connection with individual embodiments of the invention can be provided in different combinations in the object according to the invention in order to realize their advantageous effects at the same time.

All method steps can be implemented by devices that are suitable for carrying out the respective method step. All functions performed by physical features can be a method step of a method.

The scope of protection of the present invention is given by the claims and is not limited by the features explained in the description or shown in the figures.

Reference List

100

system flushing system

101

piping

103

Entry

105

mixing tank

107

Exit

109

flushing liquid

111

jet

113

flow sensor

115

Velocity/Venturi Nozzle

117

pressure sensor

119

temperature sensor

121

pressure sensor

123

flange plate

125

fog nozzle

127

pulsator

129

air line

131

check valve

132

backflow preventer

133

fluid substance / carbon dioxide

135

pressure reducer

137

fluid substance / color solution

139

reservoir

141

reservoir

143

control valve

145

diaphragm pump

147

viewing window

149

control valve

151

air line

153

supply line

155

backflow preventer

Claims (13)

System flushing system (100) for flushing pipelines (101), with: - An inlet (103) for admitting a flushing liquid (109) for flushing the pipelines (101); - A pulsator (127) for transmitting mechanical vibrations to the rinsing liquid (109); and - an outlet (107) for discharging the vibrated rinsing liquid (109), wherein the pulsator (127) is arranged, the air duct (129) to a nozzle (111-1, ..., 111-5) inside a To apply mixing container (105) with a pulsating pressure. System flushing system (100) after claim 1 , wherein the pulsator (127) is designed to generate vibrations with a frequency between 5 and 15 Hz. System flushing system (100) according to one of Claims 1 or 2 , wherein the frequency of the pulsator (127) is variable. System flushing system (100) according to one of Claims 1 until 3 , wherein the pulsator (127) is a pulsator that can be operated with compressed air. System flushing system (100) after claim 4 , wherein the compressed air range for operating the pulsator (127) is between 3 and 8 bar. System flushing system (100) according to one of Claims 4 or 5 , wherein the air flow to the pulsator (127) can be interrupted by a valve (133). System flushing system (100) according to one of Claims 1 until 6 , wherein the nozzle (111-1, ..., 111-5) is replaced by a ball nozzle (111-1), a solid jet nozzle (111-2, 111-3) and/or a round jet nozzle (111-4, 111 -5) is formed. System flushing system (100) according to one of Claims 1 until 7 , wherein a backflow preventer (131) is arranged between the nozzle (111-1, ..., 111-5) and the pulsator (127). System flushing system (100) according to one of Claims 1 until 8th , wherein the pulsator (127) is arranged in a metal housing. Method for rinsing pipelines (101), with the steps: - admitting (S101) a rinsing liquid (109) for rinsing the pipelines (101) at an inlet (103) of a system rinsing installation (100); - Transmission (S102) of mechanical vibrations gene on the rinsing liquid (109) by a pulsator (127); and - dispensing (S103) the rinsing liquid (109) set in vibration from an outlet (107) of the system rinsing system (100), the pulsator (127) connecting the air line (129) to a nozzle (111-1, ..., 111 -5) subjected to a pulsating pressure inside a mixing container (105). procedure after claim 10 , whereby the vibrations are generated with a frequency between 5 and 15 Hz. procedure after claim 10 or 11 , wherein the pulsator (127) is operated with compressed air. Procedure according to one of Claims 10 until 12 , wherein the pulsator (127) is operated in a compressed air range between 3 and 8 bar.

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