CN217031586U

CN217031586U - Liquid heating device

Info

Publication number: CN217031586U
Application number: CN202220738128.8U
Authority: CN
Inventors: 胡如国; 郭志英; 黄叶飞; 冯向兵
Original assignee: Wuhu Aldoc Technology Co ltd
Current assignee: Wuhu Aldoc Technology Co ltd
Priority date: 2022-03-31
Filing date: 2022-03-31
Publication date: 2022-07-22
Anticipated expiration: 2032-03-31

Abstract

The utility model discloses a liquid heating device, which comprises a heat exchanger, a liquid heater, a first interface, a second interface, a third interface and a fourth interface, wherein the heat exchanger at least comprises a hot liquid flow passage, a first cold liquid flow passage and a second cold liquid flow passage, the liquid heater is provided with a heating channel, the first interface is communicated with an inlet of the first cold liquid flow passage, an outlet of the first cold liquid flow passage is communicated with an inlet of the heating channel, an outlet of the heating channel is communicated with an inlet of the hot liquid flow passage, an outlet of the hot liquid flow passage is communicated with the third interface, the second interface is communicated with an inlet of the second cold liquid flow passage, and an outlet of the second cold liquid flow passage is communicated with the fourth interface. The device can quickly reduce the temperature of the heated high-temperature liquid, thereby realizing the requirements of users.

Description

Liquid heating device

Technical Field

The utility model relates to the technical field of liquid heating, in particular to a liquid heating device.

Background

At present, a user often adopts two modes when drinking non-direct drinking water, one mode is that the non-direct drinking water is heated to a boiling state and is drunk after being naturally cooled, and the waiting time required by the method is longer; the other is to add a filtering device, filter the non-direct drinking water to direct drinking water and then heat the direct drinking water to the temperature required by the user, which is expensive and needs to replace the filter element frequently.

Disclosure of Invention

The object of the present invention is to provide a liquid heating device which is capable of rapidly providing a drinking liquid at a desired temperature.

In order to realize the purpose, the following technical scheme is adopted:

a liquid heating device comprises a heat exchanger, a liquid heater, a first interface, a second interface, a third interface and a fourth interface, wherein the heat exchanger is at least provided with a hot liquid flow passage, a first cold liquid flow passage and a second cold liquid flow passage, liquid in the hot liquid flow passage can exchange heat with liquid in the first cold liquid flow passage, liquid in the hot liquid flow passage can exchange heat with liquid in the second cold liquid flow passage, the first cold liquid flow passage and the second cold liquid flow passage are not communicated with each other in the heat exchanger, the liquid heater is provided with a heating passage, the first interface is communicated with an inlet of the first cold liquid flow passage, an outlet of the first cold liquid flow passage is communicated with an inlet of the heating passage, an outlet of the heating passage is communicated with an inlet of the hot liquid flow passage, an outlet of the hot liquid flow passage is communicated with the third interface, and the second interface is communicated with an inlet of the second cold liquid flow passage, and the outlet of the second cold liquid flow channel is communicated with the fourth interface.

The liquid heating device provided by the technical scheme comprises a heat exchanger and a liquid heater, wherein the heat exchanger is at least provided with a hot liquid flow passage, a first cold liquid flow passage and a second cold liquid flow passage, and the liquid heater is provided with a heating passage. This device makes cryogenic liquids flow in the liquid heater behind first cooling runner earlier, with liquid heating to the high temperature state, and the hydrothermal fluid channel in the high temperature liquid enters into the heat exchanger, and the cryogenic liquids in the hydrothermal fluid channel and the first cold liquid runner and/or the second cold liquid runner carry out the heat exchange, can utilize one kind or two kinds of cold sources to cool down as required, makes the temperature of high temperature liquid reduce fast to realize user's demand.

Drawings

FIG. 1 is a schematic structural view of one embodiment of a liquid heating apparatus according to the present invention;

FIG. 2 is a schematic structural view of another embodiment of the liquid heating apparatus of the present invention;

FIG. 3 is a schematic structural view of another embodiment of a liquid heating apparatus according to the present invention;

FIG. 4 is a schematic structural view of another embodiment of a liquid heating apparatus according to the present invention;

FIG. 5 is a schematic structural view of another embodiment of a liquid heating apparatus according to the present invention;

FIG. 6 is a schematic perspective view of one embodiment of a heat exchanger according to the present invention;

FIG. 7 is a schematic perspective view of one embodiment of the heat exchange assembly of FIG. 6;

FIG. 8 is a schematic view of a heating element according to an embodiment of the present invention.

Detailed Description

In order to make the technical solutions of the present invention better understood, the present invention will be further described in detail with reference to the accompanying drawings and specific embodiments. It should be noted that the terms "upper" and "lower" as used herein are defined by the positions of the components shown in the drawings, and are only used for clarity and convenience of technical solution, and it should be understood that the terms used herein should not be construed as limiting the scope of the claims.

Referring to fig. 1, fig. 1 shows an embodiment of a liquid heating apparatus provided in the present invention. The liquid heating device comprises a heat exchanger 1 and a liquid heater 2, wherein the liquid heater 2 is fixedly arranged with the heat exchanger 1, and the liquid heating device further comprises a first interface 111, a second interface 112, a third interface 101 and a fourth interface 102. The heat exchanger 1 is provided with a hot liquid flow passage 12, a first cold liquid flow passage 11 and a second cold liquid flow passage 13, liquid in the hot liquid flow passage 12 can exchange heat with liquid in the first cold liquid flow passage 11, liquid in the hot liquid flow passage 12 can exchange heat with liquid in the second cold liquid flow passage 13, the first cold liquid flow passage 11 and the second cold liquid flow passage 13 are not communicated with each other in the heat exchanger 1, and the liquid heater 2 is provided with a heating passage 20; the first interface 111 is communicated with an inlet of the first cold liquid flow channel 11, an outlet of the first cold liquid flow channel 11 is communicated with an inlet of the heating channel 20, an outlet of the heating channel 20 is communicated with an inlet of the hot liquid flow channel 12, an outlet of the hot liquid flow channel 12 is communicated with the third interface 101, the second interface 112 is communicated with an inlet of the second cold liquid flow channel 13, and an outlet of the second cold liquid flow channel 13 is communicated with the fourth interface 102.

The term "communication" as used herein includes not only the case where components are directly communicated with each other, but also the case where communication is performed through other components.

The liquid heating device provided by the embodiment comprises a heat exchanger 1 and a liquid heater 2, wherein the heat exchanger 1 is provided with a hot liquid flow passage 12, a first cold liquid flow passage 11 and a second cold liquid flow passage 13, and the liquid heater 2 is provided with a heating passage 20. The device enables low-temperature liquid to flow into the liquid heater 2 after passing through the first cooling flow channel 11, the liquid is heated to a high-temperature state, the high-temperature liquid enters the hot liquid flow channel 12 in the heat exchanger 1, the high-temperature liquid in the hot liquid flow channel 12 exchanges heat with the low-temperature liquid in the first cold liquid flow channel 11 and/or the second cold liquid flow channel 13, one or two cold sources can be used for cooling according to needs, the temperature of the high-temperature liquid is reduced, and then the high-temperature liquid flows out from the third interface 101, so that the requirements of users are met; in addition, after the low-temperature liquid in the first cold liquid flow passage 11 exchanges heat with the high-temperature liquid in the hot liquid flow passage 12, the temperature of the low-temperature liquid is increased and then enters the heating passage 20 of the liquid heating device 2 for heating, so that the utilization rate of the heat energy can be improved.

Referring to fig. 2, the liquid heating apparatus provided in this embodiment may further include a liquid storage container 3, a first liquid pump 4 and a second liquid pump 5, the first interface 111 is communicated with an outlet of the first liquid pump 4, an inlet of the first liquid pump 4 is communicated with the liquid storage container 3, the second interface 112 is communicated with an outlet of the second liquid pump 5, an inlet of the second liquid pump 5 is communicated with the liquid storage container 3, and the fourth interface 102 is communicated with the liquid storage container 3.

Referring to fig. 3, in the present embodiment, the liquid storage container 3 has a first chamber 31 and a second chamber 32, the first chamber 31 is communicated with the second chamber 32, the first chamber 31 has a first liquid discharge port 311, the second chamber 32 has a second liquid discharge port 321, the first liquid discharge port 311 is communicated with the inlet of the first liquid pump 4, and the second liquid discharge port 321 is communicated with the inlet of the second liquid pump 5. In addition, the first chamber 31 further has an inlet 112, and the fourth port 102 is communicated with the inlet 112 of the reservoir 3.

In this embodiment, the liquid storage container 3 of the liquid heating apparatus has a first chamber 31 and a second chamber 32, and the first chamber 11 is communicated with the second chamber 12, so that it can be avoided that any one of the chambers cannot work normally due to water shortage. In addition, cryogenic liquid in the second chamber 32 gets into second cold liquid runner 13, cryogenic liquid carries out the heat exchange with the high-temperature liquid in the hot liquid runner 12 after, cryogenic liquid's temperature can rise, the liquid after the temperature rise gets into first chamber 31 from inlet 312, it heats to get into first cold liquid runner 11 and heating channel 20 from first drain outlet 311 again, so can further promote the heat utilization ratio of complete machine, and the liquid in the stock solution container 3 can not continuously heat up, ensure that this device can still last reliable work in the longer time.

In addition, liquid heating device can also include a water NTC and a controller, it is used for detecting to go out water NTC the inside temperature of third interface 101, it through the controller with second liquid pump 5 electricity is connected to go out water NTC, the controller passes through the temperature feedback control of water NTC the rotational speed of second liquid pump 5. The rotation speed of the second liquid pump 5 is regulated and controlled by the outlet water temperature detected by the outlet water NTC, and the liquid flow in the second cold liquid flow passage 13 is further regulated, so that the high-temperature liquid in the hot liquid flow passage 12 can be reduced to various different temperatures to meet different requirements of users.

Referring to fig. 4, fig. 4 shows another embodiment of the liquid heating apparatus provided in the present invention. In this embodiment, the liquid heating apparatus further includes a control valve 6, the control valve 6 is a three-way valve with a first inlet and a second outlet 61 and 62, the outlet of the heating channel 20 is communicated with the inlet of the control valve 6, the first outlet 61 of the control valve 6 is communicated with the inlet of the hot liquid channel 12, and the second outlet 62 of the control valve 6 is communicated with the third port 101. The control valve 6 has a valve flow path communicating an inlet of the control valve 6 with the first outlet 61, and an outlet of the heating passage 20 is communicated with an inlet of the hot liquid flow passage 12 through the valve flow path. Through setting up control valve 6, liquid heater 2 heats liquid to the high temperature state, and the liquid that is in the high temperature state enters into control valve 6, not only can enter into heat liquid runner 12 of heat exchanger 1 from its first export 61 and carry out the heat transfer, and the liquid of output temperature reduction can also enter into third interface 101 from second export 62, directly exports high temperature liquid to satisfy the different demands of user.

Referring to fig. 5, fig. 5 shows another embodiment of the liquid heating apparatus provided by the present invention. After the liquid heating device stops working, partial liquid can be remained in the liquid heater and the heat exchanger, the remained liquid can be remained in the device until being discharged when the liquid heating device works next time, the remained liquid is easily polluted, and the temperature possibly does not reach the standard when the liquid heating device is discharged, so that the liquid discharging quality is influenced. In order to solve various problems caused by the liquid remaining in the device, in this embodiment, the liquid heating device further includes an air pump 7, a flow path between the first port 111 and the third port 101 is defined as a first flow path, a flow path between the second port 112 and the fourth port 102 is defined as a second flow path, the air pump 7 is connected to the first flow path, and the air pump 7 is configured to purge the liquid in the heating channel 20 and/or the hot liquid flow channel 12.

Wherein, the output port of the air pump 7 can be connected between the outlet of the heating channel 20 and the inlet of the hot liquid flow channel 12; the output port of the air pump 7 may also be connected between the outlet of the first cold liquid channel 11 and the inlet of the heating channel 20. In the embodiment, the air pump 7 is arranged, and the control circuit starts the air pump after liquid discharging is finished to blow out the residual liquid in the device, so that various problems caused by the residual liquid can be avoided.

Referring to fig. 6 and 7, fig. 6 shows an embodiment of a heat exchanger 1 according to the present invention, where the heat exchanger 1 includes a heat exchange assembly 10, a first end cover 14 and a second end cover 15, two ends of the heat exchange assembly 10 are respectively fixed to the first end cover 14 and the second end cover 15 in a sealing manner, the heat exchange assembly 10 has the hot liquid flow passage 12, a first cold liquid flow passage 11 and a second cold liquid flow passage 13 inside, the first end cover 14 has an inlet of the first cold liquid flow passage 11, an outlet of the hot liquid flow passage 12 and an inlet of the second cold liquid flow passage 13, and the second end cover 15 has an outlet of the first cold liquid flow passage 11, an inlet of the hot liquid flow passage 12 and an outlet of the second cold liquid flow passage 13. Therefore, the flowing directions of the media in the hot liquid flow passage and the cold liquid flow passage are just opposite, so that the heat exchange effect is better.

Specifically, the heat exchange assembly 10 of the heat exchanger includes a tube group, the tube group includes a first tube, a second tube and a third tube, which are sequentially sleeved from inside to outside, a hot liquid flow channel 12 is formed between the first tube and the second tube, a first cold liquid flow channel 11 is formed between the second tube and the third tube, and a second cold liquid flow channel 13 is formed inside the first tube. Wherein, the body is the tubular metal resonator that the thermal conductivity is good, and the medium in each runner can regard as heat exchange surface with whole pipe wall, so can guarantee as big heat transfer area as far as possible under compact structure's the circumstances, has improved heat exchange efficiency. Of course, the tube set may also include an inner tube and an outer tube sleeved with each other, the inner tube forms a hot liquid flow channel 12, a first area and a second area are provided between the inner tube and the outer tube, the first area is a first cold liquid flow channel 11, and the second area is a second cold liquid flow channel 13.

Referring to fig. 8, the liquid heater 2 includes at least one heating element 200, the heating element 200 includes a heating base 23, a heating layer 24 and an electrode layer 25 electrically connected to the heating layer 24, the heating base 23 is hollow and has a tubular shape with two open ends, the heating layer 24 is located on at least a portion of an outer wall of the heating base 23, and the heating channel 20 is disposed inside the heating base 23.

It should be noted that: although the present invention has been described in detail with reference to the above embodiments, it should be understood by those skilled in the art that various changes, combinations and equivalents may be made therein without departing from the spirit and scope of the utility model.

Claims

1. A liquid heating device is characterized by comprising a heat exchanger (1), a liquid heater (2), a first interface (111), a second interface (112), a third interface (101) and a fourth interface (102),

the heat exchanger (1) at least comprises a hot liquid flow passage (12), a first cold liquid flow passage (11) and a second cold liquid flow passage (13), liquid in the hot liquid flow passage (12) can exchange heat with liquid in the first cold liquid flow passage (11), liquid in the hot liquid flow passage (12) can exchange heat with liquid in the second cold liquid flow passage (13), the first cold liquid flow passage (11) and the second cold liquid flow passage (13) are not communicated with each other in the heat exchanger (1), and the liquid heater (2) is provided with a heating channel (20); the first interface (111) is communicated with an inlet of the first cold liquid flow channel (11), an outlet of the first cold liquid flow channel (11) is communicated with an inlet of the heating channel (20), an outlet of the heating channel (20) is communicated with an inlet of the hot liquid flow channel (12), an outlet of the hot liquid flow channel (12) is communicated with the third interface (101), the second interface (112) is communicated with an inlet of the second cold liquid flow channel (13), and an outlet of the second cold liquid flow channel (13) is communicated with the fourth interface (102).

2. Liquid heating device according to claim 1, further comprising a reservoir (3), a first liquid pump (4) and a second liquid pump (5),

the first interface (111) is communicated with an outlet of the first liquid pump (4), an inlet of the first liquid pump (4) is communicated with the liquid storage container (3), the second interface (112) is communicated with an outlet of the second liquid pump (5), an inlet of the second liquid pump (5) is communicated with the liquid storage container (3), and the fourth interface (102) is communicated with the liquid storage container (3).

3. A liquid heating device according to claim 2, wherein the reservoir (3) has a first chamber (31) and a second chamber (32), the first chamber (31) being in communication with the second chamber (32), the first chamber (31) having a first liquid discharge port (311), the second chamber (32) having a second liquid discharge port (321), the first liquid discharge port (311) being in communication with an inlet of the first liquid pump (4), the second liquid discharge port (321) being in communication with an inlet of the second liquid pump (5).

4. A liquid heating device according to claim 3, wherein the first chamber (31) further has an inlet (312), and the fourth port (102) is in communication with the inlet (312) of the reservoir (3).

5. The liquid heating device according to claim 1, further comprising a second liquid pump (5), a water outlet NTC and a controller, wherein the water outlet NTC is used for detecting the temperature inside the third interface (101), the water outlet NTC is electrically connected with the second liquid pump (5) through the controller, and the controller controls the rotation speed of the second liquid pump (5) through the temperature feedback of the water outlet NTC.

6. Liquid heating device according to any one of claims 1 to 5, further comprising a control valve (6), wherein the control valve (6) is a two-in-two-way three-way valve, wherein the outlet of the heating channel (20) is in communication with the inlet of the control valve (6), wherein the control valve (6) has a first outlet (61) and a second outlet (62), wherein the first outlet (61) is in communication with the inlet of the hot liquid channel (12), and wherein the second outlet (62) is in communication with the third port (101);

the control valve (6) has a valve flow path communicating an inlet of the control valve (6) and a first outlet (61), through which the outlet of the heating channel (20) communicates with the inlet of the hot liquid flow path (12).

7. Liquid heating device according to any one of claims 1-5, characterized in that the flow path between the first port (111) and the third port (101) is defined as a first flow path and the flow path between the second port (112) and the fourth port (102) is defined as a second flow path, the liquid heating device comprising an air pump (7), the air pump (7) being connected to the first flow path, the air pump (7) being adapted to remove liquid from the heating channel (20) and/or the hot liquid flow channel (12).

8. Liquid heating device according to claim 7, characterised in that an output of the air pump (7) is connected between the outlet of the heating channel (20) and the inlet of the hot liquid channel (12), or an output of the air pump (7) is connected between the outlet of the first cold liquid channel (11) and the inlet of the heating channel (20).

9. The liquid heating device according to any one of claims 1 to 5, wherein the heat exchanger (1) comprises a heat exchange assembly (10), a first end cover (14) and a second end cover (15), two ends of the heat exchange assembly (10) are respectively fixed with the first end cover (14) and the second end cover (15) in a sealing manner, the heat exchange assembly (10) is internally provided with the hot liquid flow passage (12), a first cold liquid flow passage (11) and a second cold liquid flow passage (13), the first end cover (14) is provided with an inlet of the first cold liquid flow passage (11), an outlet of the hot liquid flow passage (12) and an inlet of the second cold liquid flow passage (13), and the second end cover (15) is provided with an outlet of the first cold liquid flow passage (11), an inlet of the hot liquid flow passage (12) and an outlet of the second cold liquid flow passage (13);

the heat exchange assembly (10) comprises a tube group, the tube group comprises a first tube, a second tube and a third tube which are sequentially sleeved from inside to outside, a second cold liquid flow channel (13) is formed in the first tube, a hot liquid flow channel (12) is formed between the first tube and the second tube, and a first cold liquid flow channel (11) is formed between the second tube and the third tube; or the tube group comprises an inner tube and an outer tube which are sleeved with each other, a hot liquid flow passage (12) is formed in the inner tube, a first area and a second area are arranged between the inner tube and the outer tube, the first area is internally provided with the first cold liquid flow passage (11), and the second area is internally provided with the second cold liquid flow passage (13).

10. A liquid heating device according to any one of claims 1-5, characterized in that the liquid heater (2) is fixedly arranged with the heat exchanger (1), the liquid heater (2) comprises at least one heating element (200), the heating element (200) comprises a heating base body (23), a heating layer (24) and an electrode layer (25) electrically connected with the heating layer (24), the heating base body (23) is hollow inside and tubular with two open ends, the heating layer (24) is located at least on part of the outer wall of the heating base body (23), and the heating channel (20) is arranged inside the heating base body (23).