KR20210062448A - De-scaling apparatus for coffee machine - Google Patents

Abstract

The present invention provides a coffee machine descaling device as a descaling device for removing internal deposits of a coffee machine for extracting coffee. According to an embodiment, the device comprises: mobile equipment having a pump for pumping a cleaning liquid or a counteractive and a power supply (SMPS) for supplying power to the pump; a valve control box having a plurality of control lines with one end connected to a plurality of coil units for a solenoid valve, respectively, and configured to transmit a control signal for opening and closing a solenoid valve to each of the coil units; a first supply pipe for connecting the cleaning liquid or the counteractive discharged from the pump to a downstream side of a water supply pump of a coffee machine; and a discharge pipe for supplying the cleaning liquid or counteractive extracted from a coffee extraction unit and a hot water extraction unit of the coffee machine to the pump.

Description

Descaling apparatus for coffee machine {De-scaling apparatus for coffee machine}

The present invention relates to a descaling device for removing internal deposits of a coffee machine for extracting coffee, and more particularly, a coffee machine device capable of effectively performing a descaling operation in a short time using portable equipment that is convenient for an operator to carry. It relates to a scaling device.

Today, espresso coffee machines (hereinafter simply referred to as'coffee machines') are used in almost all restaurants and cafes around the world, and although the technology of the coffee machine is quite advanced, it is necessary to regularly remove the scale that deposits inside the coffee machine. Is important. Scale is a material that adheres to the boiler or pipe inside the coffee machine by combining the hardness components of water, that is, calcium and magnesium, with carbonate ions or sulfate ions, which are various anionic components, and the more scale is generated, the lower the heating performance of the boiler and flow rate. By interfering with the accurate measurement of various sensors such as sensors or temperature sensors, it causes obstacles in the coffee brewing operation and acts as a factor that hinders the quality of coffee.

Currently, the general descaling operation for descaling is the overhaul method, and according to this method, two or more workers remove and collect the coffee machine, remove the main parts such as the boiler and pipes of the coffee machine, and immerse it in the cleaning solution for more than 24 hours and then do manual work. As a result, the scale inside each part is removed and reassembled. However, such an overhaul operation usually takes 7 to 10 days or more, and thus requires a lot of work time and service cost, and has problems such as disrupting normal operation during the period from collection to reinstallation of the coffee machine.

Prior Document 1: Korean Patent Application Publication No. 10-2019-0010480 (published on January 30, 2019) Prior Document 2: Korean Patent Application Publication No. 10-2018-0067560 (published on June 20, 2018) Prior Document 3: Korean Patent Registration No. 10-1373298 (registered on March 5, 2014)

The present invention was conceived to solve such a problem, and an object of the present invention is to provide a coffee machine descaling apparatus capable of effectively performing a descaling operation in a short time using portable equipment that is convenient for an operator to carry.

According to an embodiment of the present invention, a descaling device for removing internal deposits of a coffee machine for extracting coffee, comprising a pump for pumping a cleaning liquid or a neutralizing agent, and a power supply device (SMPS) for supplying power to the pump. Mobile equipment; A valve control box having a plurality of control lines connected to one end of the plurality of solenoid valve coil units one at one end, and transmitting a control signal for opening/closing the solenoid valve to each of the plurality of coil units; A first supply pipe connecting the cleaning liquid or neutralizing agent discharged from the pump to the downstream side of the feed pump of the coffee machine; And a discharge pipe for supplying the cleaning liquid or neutralizing agent extracted from the coffee extracting unit and the hot water extracting unit of the coffee machine to the pump.

According to an embodiment of the present invention, the descaling device is composed of only portable and lightweight mobile equipment, so there is no restriction on movement or space, and there is no need to dismantle or disassemble the coffee machine, and the cleaning liquid supply pipe is connected and the coil for the solenoid valve. Descaling work can be initiated only by concluding it, so the operator can arrive at the site quickly and perform work immediately upon arrival, which has the effect of drastically reducing work time and reducing costs.

In addition, according to the present invention, by using a high-pressure rotary nozzle to clean the inner upper surface of the main boiler, it is possible to clean the inside of the boiler in a short time because it can be cleaned by directly spraying a high-pressure cleaning liquid toward the upper and side surfaces of the boiler. There is an advantage.

1 is a view showing a general configuration of a conventional coffee machine;
2 is a diagram illustrating a coffee machine descaling apparatus according to an embodiment of the present invention;
3 and 4 are diagrams showing an exemplary configuration of a mobile device according to an embodiment;
5 is a block diagram of an internal configuration of a mobile device according to an embodiment;
6 is a view showing an exemplary configuration connecting the supply pipe (P1) of the descaling device to the water supply pipe (L1),
7 and 8 are views for explaining a valve control box according to an embodiment;
9 is a perspective view of a rotary nozzle according to an embodiment,
10 is a view showing the internal configuration of a rotary nozzle;
11 and 12 are views for explaining a spray head of a rotary nozzle.

The above objects, other objects, features, and advantages of the present invention will be easily understood through the following preferred embodiments related to the accompanying drawings. However, the present invention is not limited to the embodiments described herein and may be embodied in other forms. Rather, the embodiments introduced herein are provided so that the disclosed content may be thorough and complete, and the spirit of the present invention may be sufficiently conveyed to those skilled in the art.

In this specification, the singular form also includes the plural form unless specifically stated in the phrase. As used in the specification, "comprise" and/or "comprising" does not exclude the presence or addition of one or more other components.

In addition, terms such as "... unit", "... module", "... board", "... block" used to refer to the constituent elements of the invention herein refer to at least one function or operation. It may mean a processing unit, which may be implemented in hardware or software, or a combination of hardware and software.

Hereinafter, the present invention will be described in detail with reference to the drawings. In describing the specific embodiments below, a number of specific contents have been prepared to explain the invention in more detail and to aid understanding. However, a reader who has knowledge in this field enough to understand the present invention can recognize that it can be used without these various specific contents. In some cases, it is mentioned in advance that parts that are commonly known in describing the invention and are not significantly related to the invention are not described in order to avoid confusion in describing the invention.

First, the configuration of a general espresso coffee machine (hereinafter simply referred to as "coffee machine") will be schematically described with reference to FIG. 1.

Referring to the drawings, a general coffee machine includes a main boiler 10, a bath boiler 21 and 22, an electric heater 30, a plurality of solenoid valves 41, 42 and 43, and one or more group heads 51 and 52. , A water supply pump 70, a flow meter 81, and the like, and includes a plurality of water supply pipes (L1, L21, L22, L31, L32) connecting the components.

Water supplied from the outside through the first water supply pipe (L1) is supplied to the main boiler (10) by the pump (70). A solenoid valve 43, a flow meter 81, and the like are installed on the downstream side of the water supply pump 70 of the first water supply pipe L1. The solenoid valve 43 can open and close the first water supply pipe L1, and the flow meter 81 measures the amount of water supplied to the entire coffee machine.

Inside the main boiler 10, one or more boilers 21 and 22 and an electric heater 30 are disposed. Part of the water that has passed through the flow meter 81 is supplied to the bath boilers 21 and 22 through the second water supply pipes L21 and L22, respectively, and the flow meters 82 and 83 installed in the second water supply pipe are respectively The flow rate supplied to the boilers 21 and 22 is measured. The interior of the main boiler 10 is approximately 70 filled with water and 30% is an empty space, and is heated by the electric heater 30 to heat the water to approximately 92 to 95 degrees Celsius, and steam is generated in the inner space of the boiler. Some of the hot water and steam may be discharged through the hot water nozzle 12 and the steam nozzles 13 and 14, respectively.

The water supplied to the hot water boilers 21 and 22 is indirectly heated by the hot water of the main boiler 10, and water required for coffee extraction is supplied. The water heated in each of the bath boilers 21 and 22 is supplied to each group head 51 and 52 through the third water supply pipes L31 and L32 to be used for coffee extraction, and the extracted coffee is each coffee extraction unit ( 61,62). At this time, the solenoid valves 41 and 42 installed in the third water supply pipes L31 and L32 play a role of regulating the flow rate of water supplied during coffee extraction.

Meanwhile, in the main boiler 10, a sensor or valve for measuring or controlling the internal state of the boiler is installed. For example, the pressure reducing valve 11 may be opened when the internal pressure of the main boiler 10 rises above a prescribed pressure to protect the boiler. In addition, although not shown in the drawings, an air valve for discharging air inside the main boiler, and a water level sensor for measuring a water level inside the boiler may be installed on the top of the main boiler 10.

In the case of such a general coffee machine, sediment (scale) in the main boiler 10, the bath boilers 21 and 22, the group heads 51 and 52, and the water supply pipes (L1, L21, L22, L31, L32) connecting them. Occurs, and descaling to remove it is required every certain period of time.

A coffee machine descaling apparatus according to an embodiment of the present invention will now be described with reference to FIG. 2.

The structure of the coffee machine shown in FIG. 2 is the same as or similar to that described in FIG. 1, and thus a description thereof will be omitted. 2, the descaling device of a coffee machine according to an embodiment of the present invention includes a mobile equipment 100, a valve control box 200, containers 310 and 320 for receiving a liquid such as a cleaning liquid or a neutralizing agent, and a rotary nozzle. 500, and pipes P1, P2, and P3 may be included.

It is important to configure the mobile equipment 100 as small and light as possible so that the operator can carry it conveniently. In this regard, Figures 3 to 5 show an exemplary configuration of the mobile equipment (100). 3 and 4 show an actual implementation example of the mobile device, and FIG. 5 schematically shows the internal components of the mobile device.

Referring to Figures 3 to 5, the mobile device 100 according to an embodiment is composed of a case 110 in the shape of a bag. The case 110 may be composed of a case body part 111 and a cover part 112, and an LED switch 140 indicating device operation on/off and operation status is installed outside the case, and a handle for convenient movement Is attached. The width, length, and height of the case 110 are each between about 20 cm to 50 cm, and are a size convenient for the operator to carry.

The case body 110 includes a pump 120 and a power supply (SMPS) 130 therein. The SMPS 130 converts AC power supplied from the outside through the wire 131 into DC power and supplies it to the pump 120 and the switch 140 through the wires 132 and 133, respectively. The pump 120 serves to pump a cleaning liquid or a neutralizing agent, and is preferably composed of a DC pump that is smaller in volume and lighter than an AC pump. Therefore, the mobile equipment 100 weighs only a few kilometers even if the case 110, the pump 120, and the SMPS 130 are all combined, and the operator can easily carry and move it.

The pump 120 is connected to a first supply pipe (L1), a second supply pipe (P2), and a container connection pipe (P4). As shown in Fig. 2, the container connection pipe P4 is connected to the container 310 containing the cleaning liquid or neutralizing agent. Therefore, the pump 120 pumps the cleaning liquid or the neutralizing agent to supply the first and second supply pipes P1, Supply to P2).

Referring back to Figure 2, the first supply pipe (P1) is connected to the downstream side of the feed pump 70 of the coffee machine, and injects the cleaning liquid or neutralizing agent discharged from the pump 120 into the feed pipe (L1) to the main boiler. (10) and the water supply to the boiler (21, 22) side. In this regard, Figure 6 shows an exemplary configuration for connecting the first supply pipe (P1) to the water supply pipe (L1) of the coffee machine. In the embodiment of FIG. 6, interposed between the feed pump 70 of the coffee machine and the solenoid valve 43 disposed on the downstream side of the feed pump, a T-shaped pipe 330 is inserted and installed, and the rest of the T-shaped pipe 330 Connect the first supply pipe (P1) to the connector.

The T-shaped pipe 330 may include a shut-off valve 331 that blocks the connection port on the feed water pump 70 side, and shuts off the water supply pump 70 side flow path with the shut-off valve 331 during the descaling operation. Therefore, the cleaning liquid or the neutralizing agent supplied through the first supply pipe P1 may not be introduced into the water supply pump 70 and may be supplied only to the coffee machine side. On the other hand, in an alternative embodiment, a connection pipe having a shape other than the T-type pipe 330 may be installed, and the shutoff valve 331 is not installed in the T-type pipe 330 and independently at any position of the water supply pipe (L1). It can also be installed on.

Referring back to FIG. 2, the second supply pipe P2 is connected to the upper inner side of the main boiler 10 of the coffee machine and supplies a cleaning liquid or a neutralizing agent to the inner space of the main boiler 10. In a preferred embodiment, a rotary nozzle 500 is coupled to the end of the second supply pipe P2. The rotary nozzle 500 sprays a cleaning liquid or a neutralizing agent at a high pressure of 3 bar to 10 bar into the empty space inside the main boiler 10 (that is, the upper space of the area filled with water or cleaning liquid, etc. in the boiler). Sediment formed on the sides or sides can be removed.

In this case, in one embodiment, the rotary nozzle 500 may be inserted into the boiler through a through hole already formed above the main boiler 10. In the general main boiler 10, one or more through holes for installing valves or sensors such as a pressure reducing valve, an air valve, and a water level sensor are formed. In a preferred embodiment of the present invention, the rotary nozzle 500 is It may be inserted and installed inside the boiler through one of the through-hole for the pressure reducing valve, the through-hole for the air valve, and the through-hole for the water level sensor.

The cleaning liquid or neutralizing agent supplied to the main boiler 10 and the bath boilers 21 and 22 through the first supply pipe P1 and the second supply pipe P2 are hot water nozzles 12 and steam nozzles 13 and 14. , And it is discharged to the external container 320 through the coffee extraction unit (61, 62), and returns to the container 310 containing the cleaning liquid or neutralizing agent through the discharge pipe (P3). At this time, a filter (not shown) for filtering sediment is installed at the end of the discharge pipe P3 to filter the sediment.

During the descaling operation according to an embodiment, a cleaning solution and a neutralizing agent may be sequentially injected. That is, the container 310 that initially holds the cleaning liquid is connected to the mobile equipment 100, and the cleaning liquid is injected into the coffee machine, and the inside of the boilers 10,21,22 and the group heads 51,52 and the water supply pipe (L1) ,L21,L22,L31,L32) is removed and then the container 310 containing the neutralizing agent is connected to the mobile equipment 100, and the neutralizing agent is injected into the coffee machine to perform the neutralization operation, thereby descaling. Carry out.

Meanwhile, as shown in FIG. 2, the descaling apparatus of the present invention includes a valve control box 200 that directly controls the solenoid valves 41, 42, and 43 of the coffee machine. The valve control box 200 is a separate equipment capable of selectively descaling the pipeline inside the coffee machine by individually controlling the solenoid valves (41, 42, 43), and has a width of approximately 15 for easy portability by the operator. It is manufactured as a case 210 having a size of about 5 cm to 10 cm in length and height, respectively.

7 is a schematic view of the valve control box 200 according to this embodiment, and FIG. 8 schematically shows the front panel. Referring to the drawings, the valve control box 200 includes a power switch 220 that turns on/off the power of the control box, an LED 230 that displays an on/off state, and a plurality of open/close control switches (241, 242, 243). do.

Each of the control switches 241, 242, 243 is composed of an LED switch and has an on/off function and can show an on/off state. Each of the control lines CL1, CL2, and CL3 may be coupled to each of the open/close control switches 241, 242, 243, and each control line CL1, CL2, CL3 is each solenoid valve 41 and 42 of the coffee machine in FIG. 43). Therefore, for example, the first control switch 241 controls the opening and closing operation of the first solenoid valve 41 of the coffee machine, the second control switch 242 controls the second solenoid valve 42 and the third control switch Each of the third solenoid valves 43 may be individually controlled by 243.

An exemplary method of connecting each control line CL to a solenoid valve is shown in FIG. 6. 6 shows a configuration in which the control line CL is connected to the third solenoid valve 43 disposed on the downstream side of the feed water pump 70 as an example. In general, the solenoid valve 43 consists of a valve body 431 inserted into the water supply pipe L1 and a coil part detachably installed on one side of the valve body 431, and a control signal (a predetermined current or Voltage) is applied to move the coil to open and close the water supply pipe (L1).

In one embodiment of the present invention, the coil part originally installed on each solenoid valve of the coffee machine is removed, and a coil part 432 coupled to one end of the control line CL of the present invention is installed, and thus descaling Each solenoid valve can be controlled through the valve control box 200 of the present invention while the coffee machine is turned off for operation.

In addition, according to the present invention, since each solenoid valve of a coffee machine can be individually controlled, for example, by sequentially opening each solenoid valve, a blockage occurs among the boiler, the group head, and a plurality of water supply pipes of the coffee machine. It can be detected and cleaned by intensively injecting a cleaning solution into the clogged area, thus increasing the efficiency of the descaling operation.

The high-pressure rotary nozzle 500 will now be described with reference to FIGS. 9 to 11.

Various types of rotary nozzles in which the spray head rotates and sprays liquid are known in the art, but are not suitable for cleaning inside the boiler of a coffee machine. The through holes of the main boiler 10 (for example, through holes for pressure reducing valves, through holes for air valves, through holes for water level sensors, etc.) are already sized to a specific size for installation of the corresponding valve or sensor. Since has a narrow diameter of less than 12mm, the maximum diameter of the rotating nozzle body portion should be designed to be smaller than this for insertion into the main boiler 10.

In addition, in order to clean the inside of the boiler, for example, the solution should be sprayed with a strong pressure of 3 to 10 bar, and descaling over the entire inner surface of the boiler should be sprayed with a strong pressure not only on the inner side or the bottom of the boiler, but also on the top, that is, the top surface inside the boiler. can do.

Accordingly, the present inventor has developed a high-pressure rotary nozzle 500 suitable for cleaning the boiler of a coffee machine as shown in FIGS. 9 to 11. Figure 9 is a perspective view of a rotary nozzle according to an embodiment, Figure 10 is a side cross-sectional view of a portion of the rotary nozzle, Figures 11 (a) and 11 (b) are schematic perspective views of the spray head 530 viewed from above and below, respectively. Show.

Referring to the drawings, a rotary nozzle 500 according to an exemplary embodiment may include a nozzle body part 510, a head support part 520, and a spray head 530. The main body 510 has a flow path through which the liquid passes in the longitudinal direction, and has a fastening structure such as a screw thread 511 for coupling with the main boiler 10 at one end.

The head support 520 is coupled to the main body 510 and rotatably supports the injection head 530. The injection head 530 has an empty space for accommodating a liquid therein, a plurality of slots SL is formed on the surface thereof, and is coupled to the head support 520 so as to be rotatable 360 degrees. In the illustrated embodiment, one end of the injection head 530 protrudes, and a thread 531 is formed on the inner surface of the protrusion. In addition, a rotating member 540 disposed rotatably by a plurality of bearings 525 is provided inside the head support 520, and the outer surface of one end of the rotating member 540 has a thread 531 of the injection head. A thread 541 corresponding to is formed. Therefore, the injection head 530 can be coupled to the rotating member 540 using two threads 531 and 541, whereby the injection head 530 is rotatably fastened with respect to the head support 520.

In a preferred embodiment, the outer diameter of the body portion 510 and the head support portion 520 for insertion into the through hole of the main boiler 10 is 12 mm or less, and in the case of the illustrated embodiment, the body portion 510 has a diameter of 10 mm. The diameter of the head support 530 was designed to be 9mm. In addition, the inner diameter of the main body 510 and the head support 520 may be approximately 6 mm, and the inner diameter of the rotating member 540 may be approximately 2 mm. The rotating member 540 is rotatably disposed inside the head support 520 by a plurality of ball bearings 525, and each of the ball bearings 525 is composed of a micro-bearing of 1.5 mm or less.

As shown in Figs. 11(a) and 11(b), in one embodiment, the surface of the injection head 530 is offset by a predetermined distance from the rotational axis, and the first to fourth slots SL having a shape cut in a direction parallel to the rotational axis. ) Is formed. In the illustrated embodiment, the first slot SL1 and the second slot SL2 are disposed in line symmetry with respect to the rotation axis, and the third slot SL3 and the fourth slot SL4 are disposed in line symmetry with respect to the rotation axis, The first slot SL1 and the second slot SL2 are formed from the first end 530a of the spray head 530 to the side surface, and the third slot SL3 and the fourth slot SL4 are first end portions. It is formed by cutting from the second end 530b of the spray head facing 530a to the side. In addition, each of the first to fourth slots SL1 to SL4 has a slot width of 0.5 mm or less. In this way, each slot (SL) is formed to be elongated not only at the side of the injection head 530 but also at both ends 530a and 530b with fine cutouts, so that the liquid is transferred to the entire direction of the injection head 530 at a high pressure of 3 bar to 10 bar. It may be ejected, and thus, descaling can be performed by spraying the cleaning liquid with a strong pressure not only on the inner side or the bottom of the main boiler 10 but also on the top surface.

When the descaling operation of the coffee machine is performed using the descaling apparatus of the present invention described above, the following advantages can be obtained.

(1) Advantages of portable equipment

According to the present invention, the main equipment for descaling includes only a bag-type mobile equipment 100 and a box-type valve control box 200, and the mobile equipment 100 includes a small DC pump 120 and a power supply unit ( 130) is installed, so the weight of the equipment is not heavy and it is in the form of a bag, so it is convenient to carry and move. In addition, the valve control box 200 is also small enough to be held by an operator with one hand, and in addition, various pipes (P1, P2, P3), control lines (CL), and containers 310 and 320 are also light and occupy a large volume. I never do that. Therefore, in the case of using the lightweight scaling device as in the present invention, there are no restrictions on movement or space, so that a worker can quickly arrive at the site and perform work.

In addition, in the present invention, the valve control box 200 was configured by separating it from the mobile equipment 100, and therefore, the operator directly checks the operation of the inside of the coffee machine while holding the valve control box 200 in his hand or placing it on the coffee machine. And because it can control the valve and perform descaling, it has the advantage of increasing work efficiency and enabling easy work according to the situation of the work site.

(2) the effect of the working method

In the present invention, there is no need to dismantle the coffee machine or disassemble the main parts, and the cleaning liquid supply pipe is connected to the water supply pipe while only the outer case of the coffee machine is removed, and the coil part for the solenoid valve is replaced by the coil part of the existing valve. You can start working just by doing it.

In addition, in an embodiment of the present invention, since the cleaning liquid is injected into the coffee machine through the two supply pipes P1 and P2, work efficiency can be improved. That is, the first supply pipe (P1) is connected to the water supply pipe (L1) of the coffee machine, and the second supply pipe (P2) is directly connected to the interior of the main boiler (10) to inject the cleaning liquid. The cleaning liquid injected into the water supply pipe (L1) is effective in removing scale deposited on the bottom and sides of the boiler, and the cleaning liquid sprayed through the rotary nozzle 500 from the top inside the boiler removes the scale from the top inside the boiler where it is difficult to remove scale. It is effective for

In addition, in the present invention, since each solenoid valve can be individually controlled by the valve control box 200, a blockage occurs in the boiler, group head, and water supply pipe of the coffee machine, and the cleaning solution is intensively injected into the blocked area. As it can be cleaned, the efficiency of the descaling operation can be improved.

(3) Effect of high pressure rotary nozzle

In particular, in the present invention, a high-pressure rotary nozzle 500 is used to clean the inner upper surface of the main boiler 10. As described above in Figs. 9 to 12, when this rotary nozzle 500 is used, cleaning liquid can be sprayed at a high pressure of 3 to 10 bar in all directions of the spray head, so that not only the side or lower surface of the main boiler 10 but also the upper side The scale can be removed efficiently by spraying the cleaning solution with a strong pressure on the noodles as well. Therefore, in the case of performing the descaling operation using the double injection by the first supply pipe (P1) and the second supply pipe (P2) and the high-pressure rotary nozzle 500 as in the present invention, within about 2 to 3 hours Since the entire descaling work can be completed, the work can be completed in a time more than 1/10 compared to the existing overhaul method, which has the advantage of saving work time and cost.

As described above, those of ordinary skill in the field to which the present invention pertains can understand that various modifications and variations are possible from the description of this specification. Therefore, the scope of the present invention is limited to the described embodiments and should not be defined, and should be defined by the claims to be described later, as well as those equivalent to the claims.

10: main boiler 21, 22: bath boiler
30: electric heater 41,42,43: solenoid valve
70: feed pump 81,82,83: flow meter
100: mobile equipment 110: case
120: pump 130: SMPS
140: LED switch 200: valve control box
210: case 220: main switch
241,242,243: control switch 330: T-type piping
500: rotary nozzle 510: main body
520: head support 530: spray head

Claims (7)

As a descaling device that removes internal deposits of a coffee machine for brewing coffee,
Mobile equipment 100 having a pump 120 for pumping a cleaning liquid or neutralizing agent and a power supply (SMPS) 130 for supplying power to the pump;
A valve control box 200 having a plurality of control lines CL connected to one end of the plurality of solenoid valve coil units one at one end, and transmitting a control signal for opening and closing the solenoid valve to each of the plurality of coil units;
A first supply pipe (P1) connecting the cleaning liquid or neutralizing agent discharged from the pump 120 to the downstream side of the feed pump of the coffee machine; And
A coffee machine descaling apparatus comprising: a discharge pipe (P3) for supplying the cleaning liquid or neutralizing agent extracted from the coffee extracting unit and the hot water extracting unit of the coffee machine to the pump 120. The method of claim 1,
During the descaling operation of the coffee machine, each of the coil units is coupled to the valve body of each solenoid valve of the coffee machine, and the valve control box 200 is configured to control the opening and closing operation of each solenoid valve of the coffee machine. Descaling device for coffee machine. The method of claim 1,
The mobile device 100 includes a bag-shaped case 110 and a power switch 140 attached to the outside of the case,
The pump 120 and the SMPS 130 are installed in the case 110 and are configured to turn on and off the pump using the power switch. The method of claim 1,
A T-shaped pipe 330 interposed between the feed pump of the coffee machine and the solenoid valve disposed on the downstream side of the feed pump and to which the first supply pipe P1 is connected; And
A coffee machine descaling device comprising: a shut-off valve 331 installed in the T-shaped pipe 330 and blocking water supply from the feed pump of the coffee machine. The method of claim 1,
A rotary nozzle 500 configured to be installed on the inner upper part of the boiler of the coffee machine; And
A coffee machine descaling apparatus further comprising: a second supply pipe (P2) connecting the cleaning liquid or neutralizing agent discharged from the pump 120 to the rotary nozzle. The method of claim 5,
Descaling a coffee machine, characterized in that the rotary nozzle 500 is configured to be installed inside the boiler through one of a through hole for a pressure reducing valve, a through hole for an air valve, and a through hole for a water level sensor of the boiler of the coffee machine. Device. The method of claim 6,
The rotary nozzle 500 includes a spray head 530 rotatably coupled to 360 degrees by the spray pressure of the sprayed liquid,
The spray head 530 is a coffee machine descaling apparatus, characterized in that each comprises first to fourth slots offset from the rotation axis of the spray head and cut in a direction parallel to the rotation axis.

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