Hot water vapor independent generation and bidirectional cleaning system of beverage machine production pipeline

Abstract

The invention discloses a hot water vapor independent generation and bidirectional cleaning system of a beverage machine product outlet pipeline. A cleaning pipeline of the system comprises a plurality of branch pipelines which are communicated with one another and can be connected into a hot water source and a steam source respectively. Through the two-position three-way reversing valve, a backwashing pipeline or a product outlet head can be flexibly switched to be connected into a main pipeline, and the flow direction of a cleaning medium is controlled in cooperation with a one-way valve. An independent steam generating device, an independent water heating device and an independent water supply system are further arranged, and the temperature is accurately controlled through a temperature control switch. The system solves the problems that in the prior art, a beverage machine pipeline is not thoroughly cleaned, the cleaning mode is single, and the integration degree of a hot water vapor generating system is low, bidirectional cleaning is achieved, stains and bacteria in the pipeline can be effectively removed, sanitation of beverages is guaranteed, and the cleaning efficiency and the using performance of the beverage machine are improved.

Description

Technical Field

[0001] The invention relates to the field of pipeline cleaning, and in particular to a hot water steam independent generation and bidirectional cleaning system for a beverage machine dispensing pipeline. Background Art

[0002] In the field of beverage machines, as people's requirements for beverage quality and hygiene continue to increase, the cleaning of beverage machine output pipelines has received more and more attention. At present, the traditional beverage machine pipeline cleaning method is relatively simple, and it is difficult to comprehensively and efficiently remove beverage stains, bacteria and other impurities remaining in the pipeline. Some beverage machines only have a simple forward flushing function and cannot deeply clean the dead corners and complex structures of the pipeline, causing beverages to be easily contaminated during the production process, affecting the taste of the beverage and the health of consumers. Moreover, the hot water and steam generation systems of most beverage machines are not highly integrated, and it is impossible to flexibly select the appropriate cleaning medium during cleaning, resulting in poor cleaning effects and low efficiency.

[0003] The disadvantages of the existing technology are: the cleaning method is single, the pipeline cannot be thoroughly cleaned, and beverages are easily contaminated; the hot water and steam generation system is poorly integrated, the cleaning medium selection is limited, the cleaning efficiency is low, and it is difficult to meet the needs of modern consumers for the cleaning performance of beverage machines. Summary of the invention

[0004] The present invention provides a hot water steam independent generation and two-way cleaning system for a beverage machine delivery pipeline. The technical problem to be solved is: to overcome the problems of a single cleaning method and incomplete cleaning of the existing beverage machine pipeline, as well as a low integration of the hot water steam generation system resulting in poor cleaning effect and low efficiency, so as to achieve comprehensive and efficient cleaning of the beverage machine delivery pipeline, ensure the quality and hygiene of the beverage, and improve the performance of the beverage machine.

[0005] In order to achieve the above-mentioned object of the invention, the technical solution adopted by the present invention is:

[0006] The hot water steam of the beverage machine's output pipeline is independently generated and has a two-way cleaning system, which is characterized by:

[0007] The cleaning pipeline 80 includes a plurality of branch pipelines interconnected with each other, which at least include a steam supply branch 81, a hot water supply branch 82, a hot product backwash pipeline 83, and a cold product backwash pipeline 84; wherein the port of the hot water supply branch 82 is connected to the hot water source through a first valve V11; the port of the steam supply branch 81 is connected to the steam source through a second valve V12;

[0008] The hot product backwash pipeline 83, the hot product head 40, and the discharge end of the hot product main pipeline 30 are connected to the port of the valve V05, and the valve V05 is a two-position three-way reversing valve; the valve V05 is used to switch the hot product backwash pipeline 83 or the hot product head 40 to the hot product main pipeline 30, that is, the valve V05 can connect the hot product backwash pipeline 83 or the hot product head 40 to the hot product main pipeline 30;

[0009] The cold product backwash pipeline 84, the cold product header 20, and the discharge end of the cold product main pipeline 10 are connected to the port of the valve V06, and the valve V06 is a two-position three-way reversing valve; the valve V06 is used to switch the cold product backwash pipeline 84 or the cold product header 20 to the cold product main pipeline 10;

[0010] The hot product backwash pipeline 83 is provided with a solenoid valve V07 and a one-way valve V5, and the one-way valve V5 only allows the cleaning medium in the hot product backwash pipeline 83 to enter the hot product main pipeline 30;

[0011] The cold product backwash pipeline 84 is installed with a solenoid valve V08 and a one-way valve Y4 , and the one-way valve Y4 only allows the cleaning medium in the cold product backwash pipeline 84 to enter the cold product main pipeline 10 .

[0012] Furthermore, the shut-off valve V01 is installed between the conveying unit P3 and the heating unit G1 of the hot product main line 30; the shut-off valve V02 is installed between the conveying unit P2 and the valve V06 of the cold product main line 10; the shut-off valve V01 and the shut-off valve V02 are used to control the on / off of the pipeline;

[0013] The branch pipelines of the cleaning pipeline 80 also include a hot product backwash pipeline 85 and a cold product backwash pipeline 86, and all the branch pipelines of the cleaning pipeline 80 are interconnected; the port of the hot product backwash pipeline 85 is connected to the hot product main pipeline 30 between the shut-off valve V01 and the heating unit G1; the port of the cold product backwash pipeline 86 is connected to the cold product main pipeline 10 between the shut-off valve V02 and the valve V06;

[0014] The hot product backwash pipeline 85 is installed with a shut-off valve V09 and a one-way valve Y3, and the one-way valve Y3 only allows the cleaning medium in the hot product backwash pipeline 85 to flow into the hot product main pipeline 30;

[0015] The cold product backwashing pipeline 86 is installed with a shut-off valve V10 and a one-way valve Y2 , and the one-way valve Y2 allows the cleaning medium in the cold product backwashing pipeline 85 to flow into the cold product main pipeline 10 .

[0016] Furthermore, the steam generating device G3 is used to heat water to generate steam; the second valve V12 is connected to the steam outlet of the steam generating device G3 through the first air supply pipeline.

[0017] Furthermore, the steam generating device water supply system 90 is used to supply water to the steam generating device G3, and includes a first water tank 91, a first water supply pipeline 92, a filter F2, a pump P4, and a shut-off valve V13; one end of the first water supply pipeline 92 extends into the first water tank 91, and the first water supply pipeline 92 is connected to the water cavity of the steam generating device G3; the first water supply pipeline 92 is sequentially installed with a filter F2, a pump P4, and a shut-off valve V13; wherein the filter F2 is used to filter the water quality.

[0018] Furthermore, the water heating device G2 is used to heat water; the first valve V11 is connected to the water cavity of the water heating device G2 through the first hot water supply pipeline;

[0019] Furthermore, the water heating device water supply system 100 is used to supply water to the water cavity of the water heating device G2; the water heating device water supply system 100 includes a second water tank 101, a second water supply pipe 102, a filter F1, a pump P1, and a one-way valve Y1; one end of the second water supply pipe 102 extends into the second water tank 101, and the other end of the second water supply pipe 102 is connected to the water cavity of the water heating device G2; the second water supply pipe 102 is sequentially installed with a filter F1, a pump P1, and a one-way valve Y1.

[0020] Further, the temperature control switch KC1 is fixed to the outer wall of the water heating device G2, and the temperature control switch KC1 is used to detect the surface temperature of the water heating device G2, and the temperature control switch KC1 is connected to the circuit of the water heating device G2;

[0021] The temperature control switch KC2 is used to control the on / off power of the water heating device G2 according to a preset temperature.

[0022] Furthermore, the temperature control switch KC2 is fixed to the outer surface of the steam generating device G3, and the temperature control switch KC1 is used to detect the surface temperature of the water heating device G2. The temperature control switch KC2 is connected to the circuit of the water heating device G2, and the temperature control switch KC2 is used to control the on / off power of the water heating device G2 according to a preset temperature.

[0023] Furthermore, one end of the heat pipe wastewater return pipe 110 is connected to the hot product main line 30 between the shut-off valve V01 and the heating unit G1; the other end of the heat pipe wastewater return pipe 110 is connected to the waste liquid pipeline 60; and a shut-off valve V03 is installed on the heat pipe wastewater return pipe 110.

[0024] Furthermore, one end of the cold pipe wastewater return pipe 120 is connected to the cold product main pipeline 10 between the shut-off valve V02 and the valve V06; the other end of the cold pipe wastewater return pipe 120 is connected to the waste liquid pipeline 60; and the shut-off valve V04 is installed on the cold pipe wastewater return pipe 120.

[0025] The beneficial effects of the present invention are:

[0026] 1. Comprehensive and efficient cleaning: The two-way cleaning system of the present invention can realize forward and reverse flushing of the hot product main line and the cold product main line through the hot product backwashing pipeline and the cold product backwashing pipeline, in conjunction with the two-position three-way reversing valve, effectively removing residual beverage stains and bacteria in every corner of the pipeline, and cleaning more thoroughly. Compared with the traditional single cleaning method, the cleaning effect is greatly improved.

[0027] 2. Flexible selection of cleaning media: With an independent hot water steam generation system, hot water or steam can be flexibly selected as the cleaning medium through the valve according to cleaning needs. Hot water is used to initially dissolve stains, and then steam is used to further clean and empty the pipeline, which enhances the pertinence and effectiveness of cleaning and improves cleaning efficiency.

[0028] 3. High system integration, safety and reliability: The steam generator and water heating device have independent water supply systems, and the components work together with high integration. At the same time, the heat pipe wastewater return pipe, cold pipe wastewater return pipe, safety pipe, pressure detection unit, safety valve and other safety components are set up, which can not only discharge clean wastewater in time, but also ensure the safe operation of the equipment when the water pressure is abnormal, and extend the service life of the beverage machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a structural schematic diagram of the present invention. DETAILED DESCRIPTION

[0030] The specific implementation of the present invention is further described below in conjunction with the accompanying drawings, wherein the same components are represented by the same reference numerals.

[0031] It should be noted that the words "front", "rear", "left", "right", "up" and "down" used in the following description refer to directions in the accompanying drawings, and the words "inside" and "outside" refer to directions toward or away from the geometric center of a specific component, respectively.

[0032] In order to make the contents of the present invention more clearly understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0033] First, the beverage machine product pipeline is introduced. The beverage machine product pipeline includes a cold product main pipeline 10, a cold product head 20, a hot product main pipeline 30, a hot product head 40, a drain tank 50, a waste liquid pipeline 60, a waste liquid treatment unit 70, a raw material box, and a liquid conveying unit; wherein, the discharge end of the cold product main pipeline 10 is directly or indirectly connected to the cold product head 20, for example, a valve is installed between the two. The discharge end of the hot product main pipeline 30 is directly or indirectly connected to the hot product head 40, for example, a valve is installed between the two; a heating unit G1 is installed on the hot product main pipeline 30, and the heating unit G1 is used to heat the liquid raw material conveyed by the hot product main pipeline 30. The raw material box is used to contain raw materials, and the feed end of the cold product main pipeline 10 and the feed end of the hot product main pipeline 30 are connected to the raw material box. The liquid delivery unit P2 / P3 is installed on the hot product main line 30 and the cold product main line 10, and the liquid delivery unit is used to deliver liquid. The hot product main line 30 is used to deliver hot drinks, and the cold product main line 10 is used to deliver cold drinks. Furthermore, in order to maintain the quality of the beverage, a refrigerated space is also provided, in which the raw material box is placed. In addition, there are two raw material boxes, namely the first raw material box 1 and the second raw material box 2. The feed end of the cold product main line 10 extends into the first raw material box 1, and the feed end of the hot product main line 30 extends into the second raw material box 2. Furthermore, the drain tank 50 is located directly below the cold product head 20 and the hot product head 40, and the drain tank 50 is used to receive the liquid dripping from the cold product head 20 and the hot product head 40. The waste liquid treatment unit 70 is a container or drainage pipe for recovering waste liquid. One end of the waste liquid pipeline 60 is communicated with the liquid discharge port of the drain tank 50 , and the other end of the waste liquid pipeline 60 extends into the waste liquid treatment unit 70 .

[0034] In order to keep the pipelines clean, they need to be cleaned regularly. Currently, the cleaning direction is divided into forward and reverse directions; the forward direction is the same as the product delivery direction, and the reverse direction is opposite to the product delivery direction.

[0035] The hot water steam of the beverage machine output pipeline is independently generated and has a two-way cleaning system.

[0036] The cleaning pipeline 80 includes a plurality of interconnected branch pipelines, including at least a steam supply branch 81, a hot water supply branch 82, a hot product backwash pipeline 83, and a cold product backwash pipeline 84; wherein the port of the hot water supply branch 82 is connected to the hot water source via a first valve V11; and the port of the steam supply branch 81 is connected to the steam source via a second valve V12.

[0037] The discharge ends of the hot product backwash pipeline 83, the hot product head 40 and the hot product main pipeline 30 are connected to the port of the valve V05, and the valve V05 is a two-position three-way reversing valve; the valve V05 is used to switch the hot product backwash pipeline 83 or the hot product head 40 to connect to the hot product main pipeline 30, that is, the valve V05 can connect the hot product backwash pipeline 83 or the hot product head 40 to the hot product main pipeline 30.

[0038] The discharge ends of the cold product backwash pipeline 84, the cold product header 20, and the cold product main pipeline 10 are connected to the port of valve V06, and the valve V06 is a two-position three-way reversing valve; the valve V06 is used to switch the cold product backwash pipeline 84 or the cold product header 20 to connect to the cold product main pipeline 10.

[0039] The hot product backwash pipeline 83 is installed with a solenoid valve V07 and a one-way valve V5 , and the one-way valve V5 only allows the cleaning medium in the hot product backwash pipeline 83 to enter the hot product main pipeline 30 .

[0040] The cold product backwash pipeline 84 is installed with a solenoid valve V08 and a one-way valve Y4 , and the one-way valve Y4 only allows the cleaning medium in the cold product backwash pipeline 84 to enter the cold product main pipeline 10 .

[0041] To summarize, the hot product backwash pipeline 83 is connected to the hot product main pipeline 30 through the valve V05; and / or, the cold product backwash pipeline 84 is connected to the cold product main pipeline 10 through the valve V06; the cleaning medium (hot water or steam) entering the cleaning pipeline 80 is selected through the first valve V11 and the second valve V12, and the cleaning medium is further selected to enter the cold product main pipeline 10 and / or the hot product main pipeline 30 through the solenoid valve V07 and the solenoid valve V08; and then the cleaning medium can be cleaned along the complete cold product main pipeline 10 and / or the hot product main pipeline 30, so as to achieve the effect of cleaning the cold product main pipeline 10 and the hot product main pipeline 30.

[0042] In addition, during the cleaning process of the cold product main pipeline 10 and the hot product main pipeline 30, they are first cleaned with hot water and then with steam, so that the steam can empty the pipelines.

[0043] Furthermore, the shut-off valve V01 is installed between the conveying unit P3 and the heating unit G1 of the hot product main line 30; the shut-off valve V02 is installed between the conveying unit P2 and the valve V06 of the cold product main line 10; the shut-off valve V01 and the shut-off valve V02 are used to control the on / off of the pipeline.

[0044] The branch pipelines of the cleaning pipeline 80 also include a hot product backwash pipeline 85 and a cold product backwash pipeline 86, and all the branch pipelines of the cleaning pipeline 80 are connected to each other. The port of the hot product backwash pipeline 85 is connected to the hot product main pipeline 30 between the shut-off valve V01 and the heating unit G1; the port of the cold product backwash pipeline 86 is connected to the cold product main pipeline 10 between the shut-off valve V02 and the valve V06.

[0045] The hot product backwash pipeline 85 is installed with a shut-off valve V09 and a one-way valve Y3 , and the one-way valve Y3 only allows the cleaning medium in the hot product backwash pipeline 85 to flow into the hot product main pipeline 30 .

[0046] The cold product backwashing pipeline 86 is installed with a shut-off valve V10 and a one-way valve Y2 , and the one-way valve Y2 allows the cleaning medium in the cold product backwashing pipeline 85 to flow into the cold product main pipeline 10 .

[0047] In summary, close the shut-off valve V01 and / or the shut-off valve V02, connect the hot product head 40 with the hot product main line 30 through the valve V05, and / or connect the cold product main line 10 with the cold product head 20 through the valve V06; open the shut-off valve V09 and / or the shut-off valve V10; allow the cleaning medium (hot water) to enter the cleaning line 80 through the first valve V11, or allow the cleaning medium (steam) to enter the cleaning line 80 through the second valve V12; the cleaning medium can enter the cold product main line 10 and / or the hot product main line 30 from the cleaning line 80, and finally be discharged from the cold product head 20 and / or the hot product head 40.

[0048] Furthermore, the steam generating device G3 is used to heat water to generate steam; the second valve V12 is connected to the steam outlet of the steam generating device G3 through the first air supply pipeline.

[0049] Furthermore, the steam generating device water supply system 90 is used to supply water to the steam generating device G3, and includes a first water tank 91, a first water supply pipeline 92, a filter F2, a pump P4, and a shut-off valve V13; one end of the first water supply pipeline 92 extends into the first water tank 91, and the first water supply pipeline 92 is connected to the water cavity of the steam generating device G3; the first water supply pipeline 92 is sequentially installed with a filter F2, a pump P4, and a shut-off valve V13; wherein the filter F2 is used to filter the water quality.

[0050] Furthermore, the water heating device G2 is used to heat water; the first valve V11 is connected to the water cavity of the water heating device G2 through a first hot water supply pipeline.

[0051] Furthermore, the water heating device water supply system 100 is used to supply water to the water cavity of the water heating device G2; the water heating device water supply system 100 includes a second water tank 101, a second water supply pipe 102, a filter F1, a pump P1, and a one-way valve Y1; one end of the second water supply pipe 102 extends into the second water tank 101, and the other end of the second water supply pipe 102 is connected to the water cavity of the water heating device G2; the second water supply pipe 102 is sequentially installed with a filter F1, a pump P1, and a one-way valve Y1.

[0052] Furthermore, the water level probe LL1 is installed in the water heating device G2 to identify the water level in the water heating device G2.

[0053] Furthermore, the temperature control switch KC1 is fixed to the outer wall of the water heating device G2. The temperature control switch KC1 is used to detect the surface temperature of the water heating device G2. The temperature control switch KC1 is connected to the circuit of the water heating device G2.

[0054] The temperature control switch KC2 is used to control the on / off power of the water heating device G2 according to a preset temperature.

[0055] Furthermore, the temperature control switch KC2 is fixed to the outer surface of the steam generating device G3, and the temperature control switch KC1 is used to detect the surface temperature of the water heating device G2. The temperature control switch KC2 is connected to the circuit of the water heating device G2, and the temperature control switch KC2 is used to control the on / off power of the water heating device G2 according to a preset temperature.

[0056] Furthermore, one end of the heat pipe wastewater return pipe 110 is connected to the hot product main line 30 between the shut-off valve V01 and the heating unit G1; the other end of the heat pipe wastewater return pipe 110 is connected to the waste liquid pipeline 60; and a shut-off valve V03 is installed on the heat pipe wastewater return pipe 110.

[0057] When it is necessary to clean the front half of the hot product main line 30, the shut-off valve V01 is closed and the shut-off valve V03 is opened, and the cleaning medium enters the hot product main line 30 from the cleaning line 80 and the valve V05, and flows out to the waste liquid treatment unit 70 through the heat pipe waste water return pipe 110.

[0058] Furthermore, one end of the cold pipe wastewater return pipe 120 is connected to the cold product main pipeline 10 between the shut-off valve V02 and the valve V06; the other end of the cold pipe wastewater return pipe 120 is connected to the waste liquid pipeline 60; and the shut-off valve V04 is installed on the cold pipe wastewater return pipe 120.

[0059] When it is necessary to clean the front half of the cold product main line 10, the shut-off valve V02 is closed and the shut-off valve V04 is opened; the cleaning medium enters the cold product main line 10 from the cleaning line 80 and the valve V06, and flows out to the liquid treatment unit 70 through the cold pipe wastewater return pipe 120.

[0060] Furthermore, it also includes a safety pipe 130, a pressure detection unit PG1, and a safety valve R1; one end of the safety pipe 130 is connected to the water cavity of the water heating device G2, and the other end of the safety pipe 130 is connected to the waste liquid pipeline 60 or directly extends into the waste liquid treatment unit 70; and the pressure detection unit PG1 and the safety valve R1 are installed on the safety pipe 130; the pressure detection unit PG1 is used to detect the water pressure in the water heating device G2.

[0061] When the water pressure in the water heating device G2 exceeds a set value, the safety valve R1 is turned on to discharge the excess water in the water heating device G2 to the waste liquid treatment unit 70 through the safety pipe 130 .

[0062] Furthermore, the second valve V12 is a two-position three-way valve; the three ports of the second valve V12 are respectively connected to the first end of the steam exhaust pipe 140, the port of the steam supply branch pipe 81, and the end of the first air supply pipeline away from the steam generating device G3; the second valve V12 is used to switch the steam supply branch pipe 81 or the steam exhaust pipe 140 to be connected to the first air supply pipeline.

[0063] The second end of the steam exhaust pipe 140 is communicated with the waste liquid pipeline 60 or directly extends into the waste liquid treatment unit 70 .

[0064] After the steam cleaning pipeline is performed, the steam exhaust pipeline 140 is connected to the first air supply pipeline through the valve V12 to discharge the excess steam.

[0065] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. The hot water steam of the beverage machine output pipeline is independently generated and has a two-way cleaning system, which is characterized by: The cleaning pipeline (80) comprises a plurality of branch pipelines that are interconnected, and at least comprises a steam supply branch pipe (81), a hot water supply branch pipe (82), a hot product backwashing pipeline (83), and a cold product backwashing pipeline (84); wherein the port of the hot water supply branch pipe (82) is connected to a hot water source via a first valve (V11); and the port of the steam supply branch pipe (81) is connected to a steam source via a second valve (V12); The hot product backwashing pipeline (83), the hot product head (40), and the discharge end of the hot product main pipeline (30) are connected to the port of the valve (V05), and the valve (V05) is a two-position three-way reversing valve; the valve (V05) is used to switch the hot product backwashing pipeline (83) or the hot product head (40) to the hot product main pipeline (30), that is, the valve (V05) can connect the hot product backwashing pipeline (83) or the hot product head (40) to the hot product main pipeline (30); The discharge ends of the cold product backwash pipeline (84), the cold product header (20) and the cold product main pipeline (10) are connected to the port of the valve (V06), and the valve (V06) is a two-position three-way reversing valve; the valve (V06) is used to switch the cold product backwash pipeline (84) or the cold product header (20) to connect to the cold product main pipeline (10); The hot product backwash pipeline (83) is provided with a solenoid valve (V07) and a one-way valve (V5), wherein the one-way valve (V5) only allows the cleaning medium in the hot product backwash pipeline (83) to enter the hot product main pipeline (30); A solenoid valve (V08) and a one-way valve (Y4) are installed on the cold product backwash pipeline (84), and the one-way valve (Y4) only allows the cleaning medium in the cold product backwash pipeline (84) to enter the cold product main pipeline (10).

2. The hot water steam independent generation and two-way cleaning system for the beverage machine delivery pipeline according to claim 1, characterized in that: The shutoff valve (V01) is installed between the conveying unit (P3) and the heating unit (G1) of the hot product main line (30); the shutoff valve (V02) is installed between the conveying unit (P2) and the valve (V06) of the cold product main line (10); the shutoff valve (V01) and the shutoff valve (V02) are used to control the on / off of the pipeline; The branch pipelines of the cleaning pipeline (80) further include a hot product backwashing pipeline (85) and a cold product backwashing pipeline (86), and all the branch pipelines of the cleaning pipeline (80) are interconnected; a port of the hot product backwashing pipeline (85) is connected to the hot product main pipeline (30) between the shutoff valve (V01) and the heating unit (G1); a port of the cold product backwashing pipeline (86) is connected to the cold product main pipeline (10) between the shutoff valve (V02) and the valve (V06); The hot product backwash pipeline (85) is installed with a shut-off valve (V09) and a one-way valve (Y3), and the one-way valve (Y3) only allows the cleaning medium in the hot product backwash pipeline (85) to flow into the hot product main pipeline (30); The cold product backwash pipeline (86) is installed with a shut-off valve (V10) and a one-way valve (Y2), and the one-way valve (Y2) allows the cleaning medium in the cold product backwash pipeline (85) to flow into the cold product main pipeline (10).

3. The hot water steam independent generation and two-way cleaning system for the beverage machine delivery pipeline according to claim 1, characterized in that: The steam generating device (G3) is used to heat water to generate steam; the second valve (V12) is connected to the steam outlet of the steam generating device (G3) through a first air supply pipeline.

4. The hot water steam independent generation and two-way cleaning system for the beverage machine dispensing pipeline according to claim 3 is characterized in that: The steam generating device water supply system (90) is used to supply water to the steam generating device (G3), and comprises a first water tank (91), a first water supply pipeline (92), a filter (F2), a pump (P4), and a shut-off valve (V13); one end of the first water supply pipeline (92) extends into the first water tank (91), and the first water supply pipeline (92) is connected to the water cavity of the steam generating device (G3); the filter (F2), the pump (P4), and the shut-off valve (V13) are installed on the first water supply pipeline (92) in sequence; wherein the filter (F2) is used to filter water.

5. The hot water steam independent generation and two-way cleaning system for the beverage machine dispensing pipeline according to claim 1, characterized in that: The water heating device (G2) is used to heat water; the first valve (V11) is connected to the water cavity of the water heating device (G2) through a first hot water supply pipeline.

6. The hot water steam independent generation and two-way cleaning system for the beverage machine dispensing pipeline according to claim 5, characterized in that: The water supply system (100) of a water heating device is used to supply water to a water cavity of the water heating device (G2); the water supply system (100) of the water heating device comprises a second water tank (101), a second water supply pipe (102), a filter (F1), a pump (P1), and a one-way valve (Y1); one end of the second water supply pipe (102) extends into the second water tank (101), and the other end of the second water supply pipe (102) is connected to the water cavity of the water heating device (G2); the filter (F1), the pump (P1), and the one-way valve (Y1) are installed on the second water supply pipe (102) in sequence.

7. The hot water steam independent generation and two-way cleaning system for the beverage machine dispensing pipeline according to claim 5, characterized in that: The temperature control switch (KC1) is fixed to the outer wall of the water heating device (G2), the temperature control switch (KC1) is used to detect the surface temperature of the water heating device (G2), and the temperature control switch (KC1) is connected to the circuit of the water heating device (G2); The temperature control switch (KC2) is used to control the on / off power supply of the water heating device (G2) according to a preset temperature.

8. The hot water steam independent generation and two-way cleaning system for the beverage machine delivery pipeline according to claim 3, characterized in that: The temperature control switch (KC2) is fixed on the outer surface of the steam generating device (G3), and the temperature control switch (KC1) is used to detect the surface temperature of the water heating device (G2). The temperature control switch (KC2) is connected to the circuit of the water heating device (G2), and the temperature control switch (KC2) is used to control the on / off of the water heating device (G2) according to a preset temperature.

9. The hot water steam independent generation and two-way cleaning system for the beverage machine dispensing pipeline according to claim 1, characterized in that: One end of the heat pipe wastewater return pipe (110) is connected to the shutoff valve (V01) and the hot product main pipeline (30) between the heating unit (G1); the other end of the heat pipe wastewater return pipe (110) is connected to the waste liquid pipeline (60); and a shutoff valve (V03) is installed on the heat pipe wastewater return pipe (110).

10. The hot water steam independent generation and two-way cleaning system for the beverage machine dispensing pipeline according to claim 1, characterized in that: One end of the cold pipe wastewater return pipe (120) is connected to the cold product main pipeline (10) between the shut-off valve (V02) and the valve (V06); the other end of the cold pipe wastewater return pipe (120) is connected to the waste liquid pipeline (60); and a shut-off valve (V04) is installed on the cold pipe wastewater return pipe (120).

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