Pressureless exchange device and drinking water apparatus

Abstract

The utility model relates to drinking water equipment technical field, especially exchange device and drinking water equipment without pressure. The utility model discloses exchange device without pressure, it includes heat exchanger subassembly, sets up the water tank without pressure of cold water source connecting pipe, sets up the cold water pump and the cold water pump outlet of cold water pump inlet, and sets up the warm water pump and the warm water pump outlet of warm water pump inlet, and the heat exchanger subassembly is the cuboid whole and is provided with heat exchanger in it, and the heat exchanger includes inner tube and the outer tube of surrounding inner tube, and the both ends of inner tube are inner tube inlet, inner tube outlet respectively, and the both ends of outer tube are outer tube inlet, outer tube outlet respectively, the side of heat exchanger subassembly near the water tank without pressure is installation wall, and the water tank without pressure, cold water pump, warm water pump are fixed on installation wall respectively. The utility model can improve the production efficiency of drinking water equipment, also be convenient for installation, dismount, repair.

Description

Technical Field

[0001] This utility model relates to the field of drinking water equipment technology, and in particular to a pressureless exchange device and drinking water equipment. Background Technology

[0002] Traditional pressureless heat exchangers consist of separate components such as the water tank, heat exchanger, cold water pump, and warm water pump installed within the drinking water equipment. The installation process involves first securing these components to the equipment, and then connecting the piping. This often results in limited space, low production efficiency, and inconvenience in installation, disassembly, and maintenance. Utility Model Content

[0003] One objective of this invention is to solve or alleviate the aforementioned technical problems.

[0004] The present invention employs a pressureless heat exchange device, comprising a heat exchanger assembly, a pressureless water tank with a cold water source connection pipe, a cold water pump with a cold water pump inlet and outlet, and a warm water pump with a warm water pump inlet and outlet. The heat exchanger assembly is rectangular in shape and contains a heat exchanger, which includes an inner tube and an outer tube surrounding the inner tube. The two ends of the inner tube are the inner tube inlet and outlet, respectively, and the two ends of the outer tube are the outer tube inlet and outlet, respectively. The side of the heat exchanger assembly near the pressureless water tank is a mounting wall, and the pressureless water tank, cold water pump, and warm water pump are fixed to the mounting wall. The cold water pump inlet is connected to the pressureless water tank, the cold water pump outlet is connected to the outer tube inlet, and the inner tube outlet is connected to the warm water pump inlet. The inner tube inlet, outer tube outlet, and warm water pump outlet extend from the heat exchanger assembly.

[0005] The advantages of this invention are that it can improve the production efficiency of drinking water equipment and facilitate installation, disassembly, and maintenance.

[0006] In a further technical solution, both the warm water pump and the cold water pump are located below the unpressurized water tank.

[0007] This technical solution ensures that there is always water in the chilled water pump and prevents the chilled water pump from running dry.

[0008] A further technical solution includes a cylindrical mounting protrusion on the mounting wall; a flexible mounting ear on the bottom of the pressureless water tank; a mounting groove on the mounting ear; the mounting groove is arc-shaped and the arc shape is exposed outside the mounting ear, and the inner wall of the mounting groove fits against the mounting protrusion.

[0009] This technical solution allows for the convenient installation of an unpressurized water tank onto the heat exchanger assembly.

[0010] A further technical solution is that the cold water pump inlet is vertically upward and plugged into the unpressurized water tank, and the bottom end of the arc-shaped mounting groove is exposed from the bottom end of the mounting ear.

[0011] This technical solution allows the pressureless water tank to be installed on the heat exchanger assembly while simultaneously connecting the cold water pump inlet to the pressureless water tank, facilitating the assembly of the pressureless exchange device.

[0012] A further technical solution is that the pressureless water tank includes a tank cover, and electrodes are fixedly installed on the tank cover.

[0013] This technical solution can ensure equipment safety.

[0014] A further technical solution involves installing a float valve inside the unpressurized water tank to control the connection pipe of the cold water source.

[0015] The present invention provides a drinking water device, which includes the aforementioned pressureless heat exchange device and a drinking water device. The drinking water device is equipped with a heating device, a filtering device, a warm water faucet, and a hot water faucet. The heat exchanger assembly is fixed inside the drinking water device. The cold water source connection pipe is connected to the filtering device. The outlet of the warm water pump is connected to the warm water faucet. The inlet of the inner pipe and the outlet of the outer pipe are respectively connected to the heating device. Attached Figure Description

[0016] Figure 1 This is a front view schematic diagram of a pressureless exchange device according to an embodiment of the present invention. Figure 1 .

[0017] Figure 2 This is a left-side view of a pressureless exchange device according to an embodiment of the present invention.

[0018] Figure 3 This is a right-side schematic view of a pressureless exchange device according to an embodiment of the present invention.

[0019] Figure 4 This is a top view schematic diagram of a pressureless exchange device according to an embodiment of the present invention.

[0020] Figure 5 This is a front view schematic diagram of a pressureless exchange device according to an embodiment of the present invention. Figure 2 The dashed arrow ARR1 indicates the direction of cold water flow; the solid arrow ARR2 indicates the direction of hot water flow.

[0021] Figure 6 This is a schematic diagram of a drinking water device without the aforementioned pressureless exchange device. This diagram is mainly used for comparative illustration.

[0022] Figure 7This is a front view schematic diagram of a drinking water device with the built-in pressureless exchange device.

[0023] Figure 8 This is a front view schematic diagram of a drinking water device with an external pressureless exchange device.

[0024] The accompanying drawings in the specification that best illustrate the technical features of this utility model are: Figure 5 .

[0025] Arrow 1 ARR1; Arrow 2 ARR2; Unpressurized water tank 1; Cold water source connection pipe 11; Float valve 111; Mounting ear 12; Mounting groove 121; Water tank cover 19; Heat exchanger assembly 2; Heat exchanger 21; Inner pipe inlet 211; Inner pipe outlet 212; Outer pipe inlet 213; Outer pipe outlet 214; Mounting wall 22; Mounting protrusion 221; Cold water pump 3; Cold water pump inlet 31; Cold water pump outlet 32; Warm water pump 4; Warm water pump inlet 41; Warm water pump outlet 42; Drinking water equipment 5; Heating device 51; Filter device 52; Warm water faucet 53; Hot water faucet 54; Electrical control device 8; Electrode 81. Detailed Implementation

[0026] The specific embodiments of this utility model will now be described with reference to the accompanying drawings.

[0027] As a specific embodiment, the pressureless heat exchange device of this utility model includes a heat exchanger assembly 2, a pressureless water tank 1 with a cold water source connection pipe 11, a cold water pump 3 with a cold water pump inlet 31 and a cold water pump outlet 32, and a warm water pump 4 with a warm water pump inlet 41 and a warm water pump outlet 42. The pressureless water tank 1 refers to a water tank whose interior is connected to the atmosphere; it is easy to understand that the internal pressure of the pressureless water tank 1 is essentially equal to that of the atmosphere.

[0028] The heat exchanger assembly 2 is rectangular in shape and has a heat exchanger 21 inside. The heat exchanger 21 includes an inner tube (not shown in the figure) and an outer tube (not shown in the figure) surrounding the inner tube. The two ends of the inner tube are an inner tube inlet 211 and an inner tube outlet 212, respectively. The two ends of the outer tube are an outer tube inlet 213 and an outer tube outlet 214, respectively.

[0029] The side of the heat exchanger assembly 2 closest to the unpressurized water tank 1 is a mounting wall 22, and the unpressurized water tank 1, the cold water pump 3, and the warm water pump 4 are respectively fixed on the mounting wall 22.

[0030] The cold water pump inlet 31 is connected to the unpressurized water tank 1, the cold water pump outlet 32 ​​is connected to the outer pipe inlet 213, and the inner pipe outlet 212 is connected to the warm water pump inlet 41.

[0031] The inner pipe inlet 211, the outer pipe outlet 214, and the warm water pump outlet 42 extend from the heat exchanger assembly 2, respectively. For example... Figure 5 As shown, cold water is output from the unpressurized water tank 1, passes through the cold water pump 3 and the outer pipe, and then enters the heating device 51. Inside the heating device 51, it is heated to near-boiling water (water close to its boiling point, such as water above 95 degrees Celsius). After being output from the heating device 51, the boiling water passes through the inner pipe and the warm water pump 4, and is then output from the warm water pump outlet 42 to the warm water tap 53 (described later). It is easy to understand that the boiling water and cold water exchange in the heat exchanger 21, causing the temperature of the water in the outer pipe to rise (and the temperature of the water to be heated by the heating device 51 to rise accordingly, thus saving energy), while the temperature of the water in the inner pipe decreases.

[0032] like Figure 7 As shown, the drinking water equipment has a built-in pressureless heat exchange device. Specifically, the drinking water equipment includes a drinking water device 5, which is equipped with a heating device 51, a filter device 52, a warm water tap 53, and a hot water tap 54. The heat exchanger assembly 2 is fixed inside the drinking water device 5. The cold water source connection pipe 11 is connected to the filter device 52. The warm water pump outlet 42 is connected to the warm water tap 53. The inner pipe inlet 211 and the outer pipe outlet 214 are respectively connected to the heating device 51.

[0033] The working principle is as follows: the pressureless exchange device is a module that can be pre-assembled. When any drinking water equipment requires module installation, simply install the pre-assembled module and connect it to the warm water pump inlet 41 and the cold water source connection pipe 11. Without needing to rearrange the piping, the module can be assembled into any drinking water equipment that needs to produce warm water, thereby improving the production efficiency of the drinking water equipment and facilitating installation, disassembly, and maintenance. The modules can be configured in different sizes to adapt to different drinking water equipment configurations.

[0034] As one specific implementation method, both the warm water pump 4 and the cold water pump 3 are located below the unpressurized water tank 1. This ensures that the cold water pump 3 always contains water and prevents it from running dry.

[0035] As one specific implementation, the mounting wall 22 is provided with a cylindrical mounting protrusion 221; the bottom of the pressureless water tank 1 is provided with an elastic mounting ear 12 (for example, the mounting ear 12 is made of plastic and is elastic); the mounting ear 12 has a mounting groove 121; the mounting groove 121 is arc-shaped and the arc shape is exposed from the mounting ear 12, and the inner wall of the mounting groove 121 fits against the mounting protrusion 221. Moving the pressureless water tank 1 along the mounting wall 22, so that the mounting protrusion 221 is engaged with the mounting groove 121 and fits against the inner wall of the mounting groove 121, can facilitate the installation of the pressureless water tank 1 onto the heat exchanger assembly 2.

[0036] As one specific implementation, the cold water pump inlet 31 is vertically upward and plugged into the pressureless water tank 1, with the bottom end of the mounting groove 121 protruding from the bottom end of the mounting ear 12. Installing the pressureless water tank 1 into the heat exchanger assembly 2 allows the cold water pump inlet 31 to communicate with the pressureless water tank 1, facilitating the assembly of the pressureless exchange device.

[0037] As one specific implementation, the pressureless water tank 1 includes a tank cover 19, on which an electrode 81 is fixedly mounted. The electrode 81 can be electrically connected to the electronic control device 8 on the drinking water equipment 5, which is used to detect the water level in the pressureless water tank 1. When the water level in the pressureless water tank 1 is too low, the electronic control device 8 controls the cold water pump 3 and / or the heating device 51 to prevent them from starting, thus preventing the heating device 51 from burning dry and ensuring equipment safety.

[0038] As one specific implementation method, the unpressurized water tank 1 is equipped with a float valve 111 for controlling the cold water source connection pipe 11. The structure of the float valve 111 controlling the cold water source connection pipe 11 is existing technology and will not be described in detail here.

[0039] like Figure 8 As shown, in another embodiment, the pressureless exchange device can also be installed outside the drinking water device to form a drinking water device with the pressureless exchange device externally mounted.

[0040] The terms used in this invention, such as "first," "second," etc., do not indicate any order, quantity, or importance, but are merely for distinction.

[0041] In this invention, terms such as "a" or "an" are used to indicate not a limitation on the quantity, but rather to indicate the existence of at least one of the mentioned objects.

[0042] In this utility model, terms indicating direction or location such as top, bottom, side, longitudinal, transverse, middle, center, outside, inside, horizontal, vertical, left, right, above, and below are used to indicate relative positions rather than absolute positions.

[0043] Terms used in this invention, such as "approximately," "generally," "approximately," and "similar," are limiting terms used to indicate features that are present but allow for certain deviations. The amount of deviation allowed may vary depending on the specific context; for example, regarding dimensional deviations, the specific context may include, but is not limited to, relevant standards for dimensional tolerances.

Claims

1. A pressureless heat exchange device, comprising a heat exchanger assembly (2), a pressureless water tank (1) with a cold water source connection pipe (11), a cold water pump (3) with a cold water pump inlet (31) and a cold water pump outlet (32), and a warm water pump (4) with a warm water pump inlet (41) and a warm water pump outlet (42); Its characteristics are, The heat exchanger assembly (2) is rectangular in shape and contains a heat exchanger (21). The heat exchanger (21) includes an inner tube and an outer tube surrounding the inner tube. The two ends of the inner tube are an inner tube inlet (211) and an inner tube outlet (212), respectively. The two ends of the outer tube are an outer tube inlet (213) and an outer tube outlet (214), respectively. The side of the heat exchanger assembly (2) near the unpressurized water tank (1) is a mounting wall (22). The pressureless water tank (1), cold water pump (3), and warm water pump (4) are fixed on the mounting wall (22) respectively; the inlet (31) of the cold water pump is connected to the pressureless water tank (1), the outlet (32) of the cold water pump is connected to the inlet (213) of the outer pipe, and the outlet (212) of the inner pipe is connected to the inlet (41) of the warm water pump; the inlet (211) of the inner pipe, the outlet (214) of the outer pipe, and the outlet (42) of the warm water pump extend from the heat exchanger assembly (2) respectively.

2. The pressureless exchange device according to claim 1, characterized in that, The warm water pump (4) and the cold water pump (3) are both located below the unpressurized water tank (1).

3. The pressureless exchange device according to claim 2, characterized in that, The mounting wall (22) is provided with a cylindrical mounting protrusion (221); the bottom of the pressureless water tank (1) is provided with an elastic mounting ear (12); the mounting ear (12) is provided with a mounting groove (121); the mounting groove (121) is an arc shape and the arc shape is exposed from the mounting ear (12), and the inner wall of the mounting groove (121) fits against the mounting protrusion (221).

4. The pressureless exchange device according to claim 3, characterized in that, The cold water pump inlet (31) is set vertically upward and plugged into the unpressurized water tank (1), and the bottom end of the mounting groove (121) with its superior arc shape is exposed from the bottom end of the mounting ear (12).

5. The pressureless exchange device according to claim 1, characterized in that, The pressureless water tank (1) includes a water tank cover (19), and an electrode (81) is fixedly installed on the water tank cover (19).

6. The pressureless exchange device according to claim 1, characterized in that, The unpressurized water tank (1) is equipped with a float valve (111) for controlling the cold water source connection pipe (11).

7. A drinking water device comprising the pressureless exchange device according to any one of claims 1-6, characterized in that, It also includes a drinking water device (5), which is equipped with a heating device (51), a filter device (52), a warm water tap (53) and a hot water tap (54). The heat exchanger assembly (2) is fixed inside the drinking water device (5). The cold water source connection pipe (11) is connected to the filter device (52). The outlet of the warm water pump (42) is connected to the warm water tap (53). The inlet of the inner pipe (211) and the outlet of the outer pipe (214) are respectively connected to the heating device (51).

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