Shell and tube heat exchanger, water outlet equipment

Abstract

The utility model provides a shell and tube heat exchanger and a water outlet device, which relates to the technical field of heat exchange equipment. It includes: a water inlet and outlet cover, a flow channel group, and a bottom cover, wherein the water inlet and outlet cover is provided with a first fluid inlet, a second fluid inlet, a first fluid outlet, and a second fluid outlet, the flow channel group is provided between the water inlet and outlet cover and the bottom cover, and its two ends are respectively connected to the first fluid inlet and the first fluid outlet to form a first flow channel; a second flow channel is formed on the outside of the flow channel group and between the bottom cover and the water inlet and outlet cover, and the two ends of the second flow channel are respectively connected to the second fluid inlet and the second fluid outlet; the first flow channel and the second flow channel are suitable for introducing water of different temperatures to enable heat exchange between the two flow channels. This solution can make the heat exchanger structure simple and efficient.

Description

Technical Field

[0001] The utility model relates to the technical field of heat exchange equipment, in particular to a shell and tube heat exchanger and water outlet equipment. Background Art

[0002] The countertop water purifiers currently on the market use a heat exchanger to cool down the boiled water to obtain warm boiled water. The existing heat exchanger structure is relatively complex. In order to improve the heat exchange effect, the heat exchanger is usually provided with a heat sink, etc., which will increase the volume of the heat exchanger. In addition, the existing heat exchange module is formed by connecting multiple groups of heat exchange pipes, which will increase the thickness of the entire heat exchanger and cannot be applied to some smaller water outlet equipment, resulting in the water outlet equipment having to increase its volume. Utility Model Content

[0003] In view of this, an object of the present invention is to provide a shell and tube heat exchanger to solve the problem that the existing heat exchanger has a complex structure and a large thickness.

[0004] The utility model adopts the following scheme: the application provides a shell and tube heat exchanger, including: water inlet and outlet covers, a flow channel group, and a bottom cover, wherein the water inlet and outlet covers are provided with a first fluid inlet, a second fluid inlet, a first fluid outlet, and a second fluid outlet, the flow channel group is arranged between the water inlet and outlet covers and the bottom cover, and its two ends are respectively connected to the first fluid inlet and the first fluid outlet to form a first flow channel; a second flow channel is formed on the outside of the flow channel group and between the bottom cover and the water inlet and outlet covers, and the two ends of the second flow channel are respectively connected to the second fluid inlet and the second fluid outlet; the first flow channel and the second flow channel are suitable for introducing water of different temperatures to enable heat exchange between the two flow channels.

[0005] Furthermore, the flow channel group includes a sealing member and a flow channel tube, the sealing member is arranged between the bottom cover and the water inlet and outlet cover, and the flow channel tube is installed on the sealing member.

[0006] Furthermore, the flow channel group includes a plurality of through pipes, both ends of which are connected to both sides of the seal, and a plurality of connecting water channels are provided on both sides of the seal to connect and isolate the two ends of the through pipes in series to form a first flow channel that is connected and circuitous.

[0007] Furthermore, the through pipe is a metal pipe.

[0008] Furthermore, the bottom cover is provided with a groove suitable for installing the sealing member, and is provided with a plurality of through grooves for placing through pipes, and adjacent through grooves are connected to each other.

[0009] Furthermore, at least one communication opening is provided between adjacent through grooves, and the communication openings between adjacent through grooves are respectively located at two ends of the through grooves.

[0010] Furthermore, the first fluid inlet and the first fluid outlet are arranged at the diagonal ends of the water inlet and outlet cover, and the second fluid outlet and the second fluid inlet are arranged at the diagonal ends of the water inlet and outlet cover.

[0011] The utility model also provides a water outlet device, comprising the above-mentioned shell and tube heat exchanger.

[0012] Beneficial effects:

[0013] By setting a flow channel group as the first flow channel between the water inlet and outlet cover and the bottom cover, a second flow channel is formed on the outside of the first flow channel and between the water inlet and outlet cover and the bottom cover. When water of different temperatures flows into the first flow channel and the second flow channel, the metal tube with a high heat transfer coefficient of the first flow channel exchanges heat with the second flow channel, thereby improving the heat exchange efficiency. In addition, the present solution only requires one group of metal tubes, which can reduce the thickness of the heat exchange module and is suitable for miniaturized water outlet equipment. Furthermore, the heat exchanger can increase the flow rate by connecting multiple tubes in parallel, or obtain different temperatures by connecting them in series, and the heat exchanger can be placed in different positions and then connected in series when space is limited. By setting plate-type water inlet and outlet covers and bottom covers, the thickness of the entire heat exchanger can be reduced, and less space is occupied. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of a shell and tube heat exchanger according to an embodiment of the utility model;

[0015] Figure 2 It is a schematic cross-sectional structure diagram of a shell and tube heat exchanger according to an embodiment of the utility model;

[0016] Figure 3 This is a schematic diagram of the exploded structure of a shell and tube heat exchanger according to an embodiment of the utility model;

[0017] Figure 4 This is a schematic diagram of the exploded structure of a flow channel group of a shell and tube heat exchanger according to an embodiment of the utility model;

[0018] Figure numerals: water inlet and outlet cover 1, first fluid inlet 11, second fluid inlet 12, first fluid outlet 13, second fluid outlet 14, flow channel group 2, sealing member 21, connecting water channel 211, flow channel tube 22, bottom cover 3, through groove 31, first flow channel 4, second flow channel 5. DETAILED DESCRIPTION

[0019] Combination Figures 1 to 4As shown, this embodiment provides a water outlet device, including a shell and tube heat exchanger. The water outlet device can be a device such as a water dispenser. The shell and tube heat exchanger includes: an inlet and outlet water cover 1, a flow channel group 2, and a bottom cover 3, wherein the inlet and outlet water cover 1 is provided with a first fluid inlet 11, a second fluid inlet 12, a first fluid outlet 13, and a second fluid outlet 14, the flow channel group 2 is provided between the inlet and outlet water cover 1 and the bottom cover 3, and its two ends are respectively connected to the first fluid inlet 11 and the first fluid outlet 13 to form a first flow channel 4; a second flow channel 5 is formed between the outer side of the flow channel group 2 and the bottom cover 3 and the inlet and outlet water cover 1, and the two ends of the second flow channel 5 are respectively connected to the second fluid inlet 12 and the second fluid outlet 14; the first flow channel 4 and the second flow channel 5 are suitable for introducing water of different temperatures to enable heat exchange between the two flow channels.

[0020] Combination Figure 1 to Figure 2 As shown, in this embodiment, the shape of the water inlet and outlet cover 1 and the bottom cover 3 can be set to square, round, etc., preferably square, and the bottom cover 3 is provided with a slot suitable for installing the flow channel group 2, which is used to fix the flow channel group 2 between the water inlet and outlet cover 1 and the bottom cover 3. Taking the square water inlet and outlet cover 1 as an example, the first fluid inlet 11 and the first fluid outlet 13 are arranged at the diagonal ends of the water inlet and outlet cover 1, and the second fluid outlet 14 and the second fluid inlet 12 are arranged at the diagonal ends of the water inlet and outlet cover 1. This is because the distance on the diagonal line of the square is the longest, so that the effective length of the flow channel can be maximized in a limited space to improve the efficiency of heat exchange. On the water inlet and outlet cover 1 and the bottom cover 3 of other shapes, the effective length of the flow channel can be as large as possible. It is further arranged that the first fluid inlet 11 and the second fluid outlet 14 are located on the same side, and the first fluid outlet 13 and the second fluid inlet 12 are located on the same side, so that when water is inlet, the water inlet direction is different, thereby improving the heat exchange efficiency.

[0021] Combination Figure 3 to Figure 4As shown, the flow channel group 2 includes a seal 21 and a flow channel tube 22, the seal 21 is arranged between the bottom cover 3 and the water inlet and outlet cover 1, and the flow channel tube 22 is installed on the seal 21. Here, the flow channel group 2 may include a plurality of through pipes, the through pipes may be curved to increase the flow channel length or be straight for easy installation, the two ends of the through pipe are connected to the two sides of the seal 21, and the two sides of the seal 21 are provided with a plurality of connecting waterways 211 to connect and cut off the two ends of the through pipe in series to form a first flow channel 4 that is connected and circuitous, and the ends of the same end of two adjacent through pipes are arranged in the connecting waterway 211 to connect the two through pipes, and the baffles on the surrounding side of the connecting waterway 211 seal and separate the first waterway from the second waterway. In this embodiment, the through pipe is a metal pipe, for example, a copper pipe with a high heat transfer coefficient may be used to improve the heat transfer efficiency. Here, the seal 21 can be used to connect the adjacent copper tubes at both ends, while preventing them from being connected in series with the second flow channel 5, thereby ensuring the independence of the channel. In other embodiments, the flow channel tube 22 can be an integrally formed through tube, and the heat exchange function can be achieved without the seal 21. In one embodiment, the seal 21 and the through tube can be integrally formed.

[0022] The bottom cover 3 is provided with a groove suitable for installing the sealing member 21, and is provided with a plurality of through grooves 31 for placing through pipes, and the second channel is formed at the same time. A plurality of through grooves 31 may be formed on the bottom cover 3, and adjacent through grooves 31 are connected to each other. Specifically, at least one communication port is provided between adjacent through grooves 31, and the communication ports between adjacent through grooves 31 are respectively located at both ends of the through grooves 31, so that the effective length of the second flow channel 5 can be maximized.

[0023] During operation, hot water can flow into the first channel 4, cold water can flow into the second channel, and the flow directions can be set opposite, so as to improve the efficiency of heat exchange. The water flows in the first channel 4 and the second channel 5 are heat exchanged through the through pipe during the flow process, so that the outflowing water becomes hot. The heat exchanger can increase the flow rate by connecting multiple devices in parallel, or obtain different temperatures by connecting them in series. In the case of limited space, the heat exchanger can be placed in different positions and then connected in series. By setting a plate-type water inlet and outlet cover 1 and a bottom cover 3, the thickness of the entire heat exchanger can be reduced, and less space is occupied.

[0024] It should be understood that the above are only preferred implementations of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention.

[0025] The above description of the drawings used in the implementation manner only shows certain embodiments of the utility model and should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

Claims

1. A shell and tube heat exchanger, characterized in that: include: A water inlet and outlet cover, a flow channel group, and a bottom cover, wherein the water inlet and outlet cover is provided with a first fluid inlet, a second fluid inlet, a first fluid outlet, and a second fluid outlet, the flow channel group is provided between the water inlet and outlet cover and the bottom cover, and its two ends are respectively connected to the first fluid inlet and the first fluid outlet to form a first flow channel; a second flow channel is formed on the outside of the flow channel group and between the bottom cover and the water inlet and outlet cover, and the two ends of the second flow channel are respectively connected to the second fluid inlet and the second fluid outlet; the first flow channel and the second flow channel are suitable for introducing water of different temperatures to enable heat exchange between the two flow channels.

2. The shell and tube heat exchanger according to claim 1, characterized in that: The flow channel group includes a sealing member and a flow channel tube. The sealing member is arranged between the bottom cover and the water inlet and outlet cover, and the flow channel tube is installed on the sealing member.

3. The shell and tube heat exchanger according to claim 2, characterized in that: The flow channel group includes a plurality of through pipes, both ends of which are connected to both sides of the sealing member, and a plurality of connecting water channels are provided on both sides of the sealing member to connect and isolate the two ends of the through pipes in series to form a first flow channel that is connected and circuitous.

4. The shell and tube heat exchanger according to claim 3, characterized in that: The through pipe is a metal pipe.

5. The shell and tube heat exchanger according to claim 3, characterized in that: The bottom cover is provided with a groove suitable for installing the sealing member, and is provided with a plurality of through grooves for placing through pipes, and adjacent through grooves are communicated with each other.

6. The shell and tube heat exchanger according to claim 5, characterized in that: At least one communication opening is arranged between adjacent through grooves, and the communication openings between adjacent through grooves are respectively located at two ends of the through grooves.

7. The shell and tube heat exchanger according to claim 1, characterized in that: The first fluid inlet and the first fluid outlet are arranged at the diagonal ends of the water inlet and outlet cover, and the second fluid outlet and the second fluid inlet are arranged at the diagonal ends of the water inlet and outlet cover.

8. A water outlet device, characterized in that: A shell and tube heat exchanger comprising any one of claims 1-7.

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