CN213733975U - Printing machine water tank refrigeration cycle equipment - Google Patents

Abstract

The application relates to the field of fountain solution cooling equipment, in particular to a printer water tank refrigeration cycle device. The key points of the technical scheme are as follows: including the equipment body, the equipment body include supporting part and fixed connection in storage portion on the supporting part, be provided with cooling body and circulation mechanism on the equipment body respectively, storage portion includes that liquid stores a and heat insulating part, cooling body and circulation mechanism respectively with liquid stores the piece and links to each other, cooling body is used for cooling off liquid, circulation mechanism is used for taking liquid out in the liquid storage part and with liquid backward flow extremely in the liquid storage part, liquid store with heat insulating part is fixed mutually, liquid store overlap in the heat insulating part, liquid store with form thermal-insulated cavity between the heat insulating part, this application has the cooling cycle effect that promotes fountain solution.

Description

Printing machine water tank refrigeration cycle equipment

Technical Field

The application relates to the field of fountain solution cooling equipment, in particular to a printer water tank refrigeration cycle device.

Background

The fountain solution is a chemical auxiliary agent which is indispensable in printing of a color press, forms a uniform water film on a blank part of a printing plate to resist ink on pictures and texts from infiltrating into the blank part and prevent dirty printing, and is frozen before use, so that the fountain solution can stabilize an ink roller of the printing press, reduce ink viscosity change, reduce water consumption of a printing surface and reduce paper expansion and contraction, and is widely applied to the printing field.

At present, fountain solution cooling equipment is generally used for cooling fountain solution, the commonly used fountain solution cooling equipment is a cooling water tank, in the cooling process, fountain solution stored in the water tank is sucked into a circulating system by a circulating water pump, the fountain solution flows out of a printing machine after the fountain solution plays a role of dampening, and the fountain solution is cooled by a water circulating radiator and a cooling fan and then is added with new circulation again to realize cooling circulation of the fountain solution.

In view of the above-mentioned related art, the inventor believes that the cooling water tank in the related art has a defect of poor cooling circulation effect during use, and the equipment has a large space for improvement.

SUMMERY OF THE UTILITY MODEL

In order to promote the cooling cycle effect of dampening solution, the application provides a printing machine water tank refrigeration cycle equipment.

The application provides a freezing circulating equipment of printing machine water tank adopts following technical scheme:

the utility model provides a freezing circulating equipment of printing machine water tank, includes the equipment body, the equipment body include supporting part and fixed connection in storage portion on the supporting part, be provided with cooling body and circulation mechanism on the equipment body respectively, storage portion includes that liquid stores a and thermal-insulated piece, cooling body and circulation mechanism respectively with liquid stores the piece and links to each other, cooling body is used for cooling off liquid, circulation mechanism is used for taking out liquid and with liquid backward flow extremely in the liquid stores the piece from liquid stores, liquid store with the thermal-insulated piece is fixed mutually, liquid store the piece cup joint in the thermal-insulated piece, liquid store with form thermal-insulated cavity between the thermal-insulated piece.

Through adopting above-mentioned technical scheme, the piece can be stored the fountain solution to liquid storage, the cooling body who is connected with liquid storage can cool off the fountain solution of storing in liquid storage, in addition, the circulation mechanism who is connected with liquid storage can be to the fountain solution circulation operation that is located liquid storage, the in-service use operating mode has been satisfied, at this in-process, form thermal-insulated cavity between thermal-insulated piece and the liquid storage piece, the reducible outside heat transfer of thermal-insulated cavity to liquid storage piece department, the heat-proof quality of storage portion has been promoted, reduce calorific loss, the cooling cycle effect of fountain solution obtains promoting.

Preferably, the heat insulation cavity is filled with a heat insulation layer.

Through adopting above-mentioned technical scheme, the insulating layer plays thermal-insulated effect, has further promoted the thermal-insulated effect of storage portion.

Preferably, the cooling mechanism includes a refrigerator and a cooling pipe, the cooling pipe is disposed in the liquid storage member, one end of the cooling pipe is connected to an inlet of the refrigerator, and the other end of the cooling pipe is connected to an outlet of the refrigerator.

Through adopting above-mentioned technical scheme, the refrigerator can be to the medium circulation cooling in the cooling tube, and in coolant accessible cooling tube entered into to liquid storage piece at circulation in-process, fountain solution and the cooling tube butt in the liquid storage piece, the heat exchanged, and the cooling tube is taken away the heat of fountain solution, realizes the cooling of fountain solution, and the structure is practical.

Preferably, the cooling pipes are arranged in a serpentine shape and sequentially wound around the inner side wall of the liquid storage part.

Through adopting above-mentioned technical scheme, the cooling tube of snakelike arranging can prolong the length of cooling tube, and then promotes the area of contact of cooling tube and fountain solution, and heat exchange efficiency obtains promoting, and in addition, the cooling tube is around the inside wall of storing the piece through liquid in proper order for the fountain solution in the liquid storage piece obtains more even cooling in circumference, has promoted cooling body's cooling effect.

Preferably, the circulating mechanism comprises a water suction pump, a connecting pipe, an adapter, a water outlet pipe and a return pipe, the water suction pump and the adapter are respectively and fixedly connected to the storage part, a first flow channel and a second flow channel are respectively arranged in the adapter, the first flow channel is respectively arranged at two side surface openings of the adapter, the second flow channel is respectively arranged at two side surface openings of the adapter, a water inlet end of the water suction pump is communicated with the inside of the liquid storage part, two ends of the connecting pipe are respectively communicated with a water outlet end of the water suction pump and the first flow channel, one end of the water outlet pipe is communicated with the first flow channel, the other end of the water outlet pipe is communicated with a printing machine, one end of the return pipe is communicated with the printing machine, and the other end of the return pipe is connected with one end of the second flow channel, the other end of the second flow passage is communicated with the inside of the liquid storage member.

Through adopting above-mentioned technical scheme, at the in-process to the fountain solution circulation, at first start the suction pump, the water pump orders about the entry of the fountain solution in the liquid storage piece from the intake end department of suction pump, flow to connecting pipe department from the play water end department of suction pump immediately, the fountain solution flows through first flow channel and outlet pipe from the connecting pipe department immediately and finally arrives printing machine department, and simultaneously, the fountain solution of printing machine department can flow through the back flow in proper order and the final backward flow of second flow channel is realized circulating in the liquid storage piece, can realize the switching of liquid outflow and backward flow through the adapter, compact structure and practicality.

Preferably, the first flow channel comprises a main flow channel and a plurality of branch flow channels, one end of the main flow channel is arranged at the surface opening of the adapter, one end of each branch flow channel is communicated with the main flow channel, the other end of each branch flow channel is arranged at the surface opening of the adapter, the number of the water outlet pipes is matched with the number of the branch flow channels, and the water outlet pipes are communicated with the branch flow channels in a one-to-one correspondence manner.

Through adopting above-mentioned technical scheme, through setting up many runners and many outlet pipes, can promote the water yield of fountain solution to satisfy the in-service use demand, the structure is practical.

Preferably, the number of the second flow channels is multiple, the number of the return pipes is consistent with that of the second flow channels, and the multiple return pipes are communicated with the second flow channels in a one-to-one correspondence manner.

Through adopting above-mentioned technical scheme, set up many back flows and the second runner can promote the reflux of fountain solution to satisfy the in-service use demand, the structure is practical.

Preferably, a valve is arranged between the water outlet pipe and the adapter, and the valve is respectively communicated with the first flow channel and the water outlet pipe.

Through adopting above-mentioned technical scheme, the valve plays the effect that the control outlet pipe was opened and close, is convenient for control fountain solution and opens and stop the operation, has promoted the practicality of equipment.

In summary, the present application includes at least one of the following beneficial technical effects:

1. a heat insulation cavity is formed between the heat insulation piece and the liquid storage piece, the heat insulation cavity can reduce external heat transmitted to the liquid storage piece, the heat insulation performance of the storage part is improved, the heat loss is reduced, and the cooling circulation effect of the fountain solution is improved;

2. the cooling pipes arranged in a snake shape can prolong the length of the cooling pipes, so that the contact area between the cooling pipes and the fountain solution is increased, the heat exchange efficiency is improved, in addition, the cooling pipes sequentially wind around the inner side wall of the liquid storage part, so that the fountain solution in the liquid storage part is cooled more uniformly in the circumferential direction, and the cooling effect of the cooling mechanism is improved;

3. the water suction pump is started, fountain solution in the liquid storage part is driven to enter from the water inlet end of the water suction pump by the water suction pump, the fountain solution flows to the connecting pipe from the water outlet end of the water suction pump immediately, the fountain solution flows through the first flow channel from the connecting pipe immediately and finally reaches the printing machine through the water outlet pipe, meanwhile, the fountain solution in the printing machine can sequentially flow through the backflow pipe and the second flow channel and finally flows back to the liquid storage part to achieve circulation, liquid outflow and backflow switching can be achieved through the adapter, and the automatic fountain machine is compact in structure and practical.

Drawings

Fig. 1 is a schematic view of the overall structure of a printer water tank refrigeration cycle apparatus in the present application.

Fig. 2 is a schematic structural diagram of a printer water tank refrigeration cycle device with parts removed in the present application.

FIG. 3 is a schematic view of the assembly of the fluid storage element and the thermal insulation element of the present application.

Fig. 4 is a sectional view of the reservoir in the present application.

Fig. 5 is a schematic view of the structure between the cover plate and the liquid storage member in the present application.

Fig. 6 is a schematic structural view of a cooling mechanism in the present application.

Fig. 7 is a schematic view of the structure of the circulation mechanism in the present application.

Fig. 8 is a schematic structural view of another perspective of the circulation mechanism in the present application.

Fig. 9 is a cross-sectional view of the adaptor, the connecting pipe and the outlet pipe according to the present invention.

Figure 10 is a cross-sectional view of the adapter and return tube of the present application.

Description of reference numerals: 1. a support portion; 101. a cross bar; 102. a vertical rod; 2. a storage section; 21. a liquid storage member; 211. a fixed part; 22. a cover plate; 23. a thermal insulation member; 3. a cooling mechanism; 31. a refrigerator; 32. a cooling tube; 4. a circulating mechanism; 41. a water pump; 42. a connecting pipe; 43. a transfer seat; 431. a first flow passage; 4311. a main flow channel; 4312. branch flow channels; 432. a second flow passage; 4321. a vertical section; 4322. a transverse segment; 44. a water outlet pipe; 45. a return pipe; 5. a thermally insulating cavity; 6. a thermal insulation layer; 7. and (4) a valve.

Detailed Description

The present application is described in further detail below with reference to figures 1-10.

The embodiment of the application discloses a refrigerating cycle device for a water tank of a printing machine. Referring to fig. 1 and 2, the apparatus includes an apparatus body, the apparatus body includes a support portion 1 and a storage portion 2 fixedly connected to the support portion 1, the storage portion 2 is used for storing dampening solution, the support portion 1 is used for supporting the storage portion 2, in addition, a cooling mechanism 3 and a circulation mechanism 4 are respectively arranged on the apparatus body, the cooling mechanism 3 and the circulation mechanism 4 are respectively connected with the storage portion 2, the cooling mechanism 3 is used for cooling the liquid, so that the dampening solution has better characteristics when used at a printing machine, and the circulation mechanism 4 is used for extracting the liquid from the storage portion 2 and returning the liquid to the storage portion 2, so as to realize the recycling of the dampening solution.

Specifically, referring to fig. 2, the supporting portion 1 includes a plurality of cross bars 101 and vertical bars 102, the cross bars 101 and the vertical bars 102 are welded and fixed to each other, the cross bars 101 and the vertical bars 102 form a rectangular parallelepiped frame-shaped supporting structure in this embodiment, the storage portion 2 is fixed to the top of the supporting portion 1, and the supporting portion 1 can support the storage portion 2.

Referring to fig. 3, the storage part 2 includes a liquid storage member 21, a cover plate 22, and a heat insulating member 23, in this embodiment, the liquid storage member 21 and the heat insulating member 23 are both provided in a rectangular box shape with an open top, the liquid storage member 21 and the heat insulating member 23 are both made of sheet metal, and the cooling mechanism 3 and the circulation mechanism 4 are connected to the liquid storage member 21, respectively. The size of the heat insulation piece 23 is larger than that of the liquid storage piece 21, the liquid storage piece 21 is sleeved in the heat insulation piece 23, the periphery of the opening of the liquid storage piece 21 is flanged outwards to form a fixing part 211, the periphery of the opening of the heat insulation piece 23 is fixed on the fixing part 211, at the moment, the liquid storage piece 21 and the heat insulation piece 23 are fixedly installed, and generally, the heat insulation piece 23 and the fixing part 211 can be fixed with each other in a welding and fixing mode. The heat insulator 23 may be fixed to the support 1 by fixing the bottom of the heat insulator 23 to the top of the support 1, and the heat insulator 23 may be fixed to the support 1 by welding or by fastening with a screw.

The liquid storage part 21 and the heat insulation part 23 are fixedly mounted with each other to form a heat insulation cavity 5 therebetween, fountain solution is contained in the liquid storage part 21, the heat insulation cavity 5 can reduce external heat transfer to the liquid storage part 21, heat insulation of the storage part 2 is improved, and heat loss is reduced.

Further, referring to fig. 4, the heat insulation cavity 5 is filled with a heat insulation layer 6, the heat insulation layer 6 may be made of heat insulation cotton or heat insulation foam, the heat insulation layer 6 may be fixed to the liquid storage member 21 and the heat insulation member 23 respectively by using adhesive sticker bonding, the heat insulation layer 6 plays a role in heat insulation, and the heat insulation effect of the storage part 2 is further improved.

Referring to fig. 5, in order to improve the sealing performance of the storage part 2 and reduce heat dissipation, the cover plate 22 is fixedly installed on the top of the storage part 2, the cover plate 22 can be fixedly installed on the liquid storage part 21 by welding, and the cover plate 22 covers the opening of the liquid storage part 21, so as to achieve the effect of improving the sealing performance inside the storage part 2.

Referring to fig. 6, the cooling mechanism 3 includes a refrigerator 31 and a cooling pipe 32, wherein, in the present embodiment, the refrigerator 31 is selected as a compressor having a cooling function, and when the refrigerator 31 is installed, a bottom plate may be welded to the bottom of the support portion 1, and the refrigerator 31 is installed at the bottom plate. In addition, the cooling pipe 32 is accommodated in the liquid storage part 21, one end of the cooling pipe 32 is in flange connection with an inlet of the refrigerator 31, the other end of the cooling pipe 32 is in flange connection with an outlet of the refrigerator 31, a cooling medium is filled in the cooling pipe 32, the cooling medium can be a liquid medium or a gas medium, the temperature of the cooling medium is reduced under the driving of the compressor, the cooling medium can enter the liquid storage part 21 through the cooling pipe 32 in the circulating process, the fountain solution in the liquid storage part 21 is abutted against the cooling pipe 32, heat is exchanged, the cooling pipe 32 takes away the heat of the fountain solution, and the temperature reduction of the fountain solution is realized.

Specifically, to further improve the cooling effect of the cooling pipe 32, the cooling pipe 32 is arranged in a serpentine shape, wherein the cooling pipe 32 penetrates through the cover plate 22 from top to bottom and extends into the liquid storage member 21, the cooling pipe 32 circumferentially surrounds along the side plate of the liquid storage member 21 according to a horizontal plane as a reference plane until approaching an initial position, the cooling pipe 32 is bent downward at the moment and then circumferentially surrounds along the side plate of the liquid storage member 21 again, and the cooling pipe 32 is so reciprocated and extends toward the bottom wall of the liquid storage member 21, so that the cooling pipe 32 is bent in a serpentine shape from top to bottom and sequentially surrounds the inner side wall of the liquid storage member 21, and the cooling pipe 32 finally penetrates through the cover plate 22 from top to bottom again and finally is connected with the refrigerator 31.

Here, the cooling tube 32 that is snakelike arranging can prolong the length of cooling tube 32, and then promotes the area of contact of cooling tube 32 and dampening solution, and heat exchange efficiency obtains promoting, and in addition, cooling tube 32 is around the inside wall of liquid storage member 21 in proper order for the dampening solution in the liquid storage member 21 obtains more even cooling in the circumferential direction, has promoted cooling body 3's cooling effect.

Referring to fig. 7 and 8, in order to recycle the fountain solution, the circulation mechanism 4 includes a water pump 41, a connection pipe 42, an adapter 43, a water outlet pipe 44, and a return pipe 45.

Wherein, suction pump 41 and adapter 43 are fixed connection respectively on storage portion 2, in this embodiment, adapter 43 and suction pump 41 are installed respectively on apron 22, suction pump 41 chooses for use to be vertical suction pump 41, the bottom of suction pump 41 extends to liquid storage 21 department, make the end of intaking of suction pump 41 be located liquid storage 21, and then make the end of intaking of suction pump 41 and the inside intercommunication of liquid storage 21, but the end of intaking of dampening liquid submergence suction pump 41, can extract dampening liquid through starting suction pump 41.

In addition, referring to fig. 8 and 9, the adaptor seat 43 is disposed in a square block shape, the adaptor seat 43 and the cover plate 22 can be fixed to each other by welding, a first flow channel 431 is disposed inside the adaptor seat 43, the first flow channel 431 includes a main flow channel 4311 and a plurality of branch flow channels 4312, one end of the main flow channel 4311 is open at a lateral surface of the adaptor seat 43, one end of the branch flow channel 4312 is communicated with the main flow channel 4311, the other end of the branch flow channel 4312 is open at the other lateral surface of the adaptor seat 43, in this embodiment, openings of the branch flow channel 4312 and the main flow channel 4311 on the adaptor seat 43 are respectively distributed on two adjacent lateral surfaces of the adaptor seat 43, two ends of the connection pipe 42 are respectively fixedly mounted on the suction pump 41 and the adaptor seat 43, and two ends of the connection pipe 42 are respectively communicated with a water outlet end of the suction pump 41 and the first flow channel 431, one end of the water outlet pipe 44 is fixedly mounted on the adaptor seat 43, and water outlet pipe 44 is communicated with branch flow path 4312 such that one end of water outlet pipe 44 is communicated with first flow path 431 and the other end of water outlet pipe 44 is used for communication with the printer.

Here, the suction pump 41 drives the dampening solution in the liquid storage member 21 to enter from the water inlet end of the suction pump 41, and then flows from the water outlet end of the suction pump 41 to the connection pipe 42, the dampening solution enters from the connection pipe 42 to the main channel 4311 of the adapter 43, and then flows through the branch channel 4312 and the water outlet pipe 44 to finally reach the printing machine, so as to achieve the entry of the dampening solution.

It should be noted that the number of the water outlet pipes 44 is adapted to the number of the branch flow paths 4312, and the water outlet pipes 44 are in one-to-one correspondence with the branch flow paths 4312, where the number of the water outlet pipes 44 and the number of the branch flow paths 4312 are not limited.

In addition, referring to fig. 10, a second flow channel 432 is further disposed inside the adapter 43, the second flow channel 432 is open on two side surfaces of the adapter 43, in this embodiment, the second flow channel 432 includes a vertical section 4321 and a horizontal section 4322, a bottom end of the vertical section 4321 is open on a bottom portion of the adapter 43, a top end of the vertical section 4321 is open on a main flow channel 4311 of the first flow channel 431, one end of the horizontal section 4322 is open in a middle portion of the vertical section 4321, another end of the horizontal section 4322 is open on a lateral surface of one side of the adapter 43, one end of the return pipe 45 is used for communicating with the printing press, another end of the return pipe 45 is fixedly connected with the adapter 43, the return pipe 45 is communicated with the horizontal section 4322 of the second flow channel 432, a through hole communicating with the second flow channel 432 is disposed on the cover plate 22, a bottom end of the vertical section 4321 of the second flow channel 432 is communicated with an inside of the liquid storage 21 through the through hole, and the return pipe 45 and fountain solution at the printing press can sequentially flow through the second flow channel 432 and finally return to the liquid storage member 21, and in addition, the fountain solution in the main channel 4311 can flow to the vertical section 4321 to cause vacuum, so that the siphon effect of the return pipe 45 is initiated, and the return rate of the fountain solution is improved.

Further, the second flow channels 432 may be arranged in multiple groups, such as three groups, four groups, five groups, and the like, the multiple groups of second flow channels 432 are arranged at intervals along the length direction of the adapter 43, the number of the return pipes 45 is consistent with that of the second flow channels 432, the plurality of return pipes 45 are communicated with the second flow channels 432 in a one-to-one correspondence manner, and the return amount of the fountain solution can be increased by arranging the plurality of return pipes 45 and the second flow channels 432.

Further, referring to fig. 9, a valve 7 may be disposed between the water outlet pipe 44 and the adapter 43, the valve 7 is fixedly mounted on the adapter 43 and the water outlet pipe 44, the valve 7 is communicated with the first channel 431 and the water outlet pipe 44, and the valve 7 plays a role in controlling the opening and closing of the water outlet pipe 44, so that the fountain solution can be conveniently controlled to start and stop, and the practicability of the device is improved.

The implementation principle of the printer water tank refrigeration cycle equipment in the embodiment of the application is as follows: the liquid storage member 21 can store fountain solution, the cooling mechanism 3 connected to the liquid storage member 21 is refrigerated by a compressor, and the fountain solution stored in the liquid storage member 21 can be cooled by a serpentine cooling pipe 32.

In addition, the circulating mechanism 4 connected to the liquid storage member 21 can circulate the dampening solution in the liquid storage member 21, wherein the water pump 41 is used for pumping the dampening solution in the liquid storage member 21 to the adapter 43, the dampening solution is then delivered to the printing press through the water outlet pipe 44, and the dampening solution in the printing press flows back to the adapter 43 through the return pipe 45 and finally flows into the liquid storage member 21 to realize the recycling of the dampening solution.

In addition, a heat insulation cavity 5 is formed between the heat insulation piece 23 and the liquid storage piece 21, a heat insulation layer 6 is filled in the heat insulation cavity 5, the heat insulation cavity 5 and the heat insulation layer 6 can reduce external heat transfer to the liquid storage piece 21, heat insulation of the storage part 2 is improved, heat loss is reduced, and the cooling circulation effect of the fountain solution is improved.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (8)

1. The utility model provides a printing machine water tank refrigeration cycle equipment which characterized in that: comprises an equipment body, the equipment body comprises a supporting part (1) and a storage part (2) fixedly connected on the supporting part (1), the equipment body is respectively provided with a cooling mechanism (3) and a circulating mechanism (4), the storage part (2) comprises a liquid storage member (21) and a heat insulating member (23), the cooling mechanism (3) and the circulating mechanism (4) are respectively connected with the liquid storage part (21), the cooling mechanism (3) is used for cooling liquid, the circulating mechanism (4) is used for extracting the liquid from the liquid storage part (21) and returning the liquid to the liquid storage part (21), the liquid storage part (21) is fixed with the heat insulation part (23), the liquid storage part (21) is sleeved in the heat insulation part (23), an insulating cavity (5) is formed between the liquid storage member (21) and the insulating member (23).

2. The printer water tank refrigerating cycle apparatus as set forth in claim 1, wherein: and the heat insulation cavity (5) is filled with a heat insulation layer (6).

3. The printer water tank refrigerating cycle apparatus as set forth in claim 1, wherein: the cooling mechanism (3) comprises a refrigerator (31) and a cooling pipe (32), the cooling pipe (32) is arranged in the liquid storage part (21), one end of the cooling pipe (32) is connected with an inlet of the refrigerator (31), and the other end of the cooling pipe (32) is connected with an outlet of the refrigerator (31).

4. A printer water tank refrigeration cycle apparatus as set forth in claim 3, wherein: the cooling pipes (32) are arranged in a snake shape, and the cooling pipes (32) sequentially wind around the inner side wall of the liquid storage part (21).

5. The printer water tank refrigerating cycle apparatus as set forth in claim 1, wherein: the circulation mechanism (4) comprises a water suction pump (41), a connecting pipe (42), an adapter (43), a water outlet pipe (44) and a return pipe (45), the water suction pump (41) and the adapter (43) are respectively and fixedly connected to the storage part (2), a first flow channel (431) and a second flow channel (432) are respectively arranged inside the adapter (43), the first flow channel (431) is respectively arranged on two side surface openings of the adapter (43), the second flow channel (432) is respectively arranged on two side surface openings of the adapter (43), a water inlet end of the water suction pump (41) is communicated with the inside of the liquid storage part (21), two ends of the connecting pipe (42) are respectively communicated with a water outlet end of the water suction pump (41) and the first flow channel (431), one end of the water outlet pipe (44) is communicated with the first flow channel (431), the other end of the water outlet pipe (44) is used for being communicated with a printing machine, one end of the return pipe (45) is used for being communicated with the printing machine, the other end of the return pipe (45) is connected with one end of the second flow channel (432), and the other end of the second flow channel (432) is communicated with the interior of the liquid storage part (21).

6. The printer water tank refrigerating cycle apparatus as set forth in claim 5, wherein: the first flow channel (431) comprises a main flow channel (4311) and a plurality of branch flow channels (4312), one end of the main flow channel (4311) is arranged at the surface opening of the adapter (43), one end of each branch flow channel (4312) is communicated with the main flow channel (4311), the other end of each branch flow channel (4312) is arranged at the surface opening of the adapter (43), the number of the water outlet pipes (44) is matched with the number of the branch flow channels (4312), and the water outlet pipes (44) are communicated with the branch flow channels (4312) in a one-to-one correspondence manner.

7. The printer water tank refrigerating cycle apparatus as set forth in claim 5, wherein: the number of the second flow channels (432) is multiple, the number of the return pipes (45) is the same as that of the second flow channels (432), and the plurality of return pipes (45) are communicated with the second flow channels (432) in a one-to-one correspondence manner.

8. The printer water tank refrigerating cycle apparatus as set forth in claim 5, wherein: a valve (7) is arranged between the water outlet pipe (44) and the adapter (43), and the valve (7) is respectively communicated with the first flow channel (431) and the water outlet pipe (44).

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