CN216770284U

CN216770284U - Pipe-in-pipe heat exchanger applied to water purifying equipment and water purifying equipment

Info

Publication number: CN216770284U
Application number: CN202220206123.0U
Authority: CN
Inventors: 艾穗江; 梁大化; 邹欢欢
Original assignee: Guangdong Macro Gas Appliance Co Ltd
Current assignee: Guangdong Macro Gas Appliance Co Ltd
Priority date: 2022-01-24
Filing date: 2022-01-24
Publication date: 2022-06-17
Anticipated expiration: 2032-01-24

Abstract

The utility model discloses a pipe-in-pipe heat exchanger applied to water purifying equipment and the water purifying equipment, comprising: the heat exchange pipe comprises a heat exchange pipe and interface components arranged at two ends of the heat exchange pipe; the heat exchange tube comprises an inner tube and an outer tube sleeved outside the inner tube; wherein the interface assembly comprises: a third interface of the tee joint is connected with the heat exchange tube, and a first interface and a second interface of the tee joint are respectively communicated with the inner tube and the outer tube; the water purifier is characterized in that a first sealing element, a second sealing element, a first joint component and a second joint component which are used for connecting a PE pipe of the water purifier are respectively arranged on the first interface and the second interface. Adopt interface module to connect heat exchange tube and water purification product, simple structure, the convenient connection, production simple process, it is small, be applicable to the household electrical appliances trade, moreover because the space in the pipe is compact, liquid can't be detained, and heat exchange efficiency can be higher.

Description

Pipe-in-pipe heat exchanger applied to water purifying equipment and water purifying equipment

Technical Field

The utility model relates to the technical field of water purification equipment, in particular to a pipe-in-pipe heat exchanger applied to water purification equipment and the water purification equipment.

Background

At present, most heat exchangers are used on large-scale equipment, and due to large volume and high manufacturing cost, the heat exchangers cannot be suitable for the household appliance industry, particularly water purifier products, and the sanitary requirements are difficult to meet.

In some tubular heat exchangers, a large number of tubes are arranged in a large container, and the liquid in the container and the liquid in the tubes are utilized for heat exchange. Because the internal volume is big, and the pipeline is many, causes the production technology complicated, and sealed requirement is high, and according to the fluid principle of liquid, the liquid of corner position is detained easily in the container moreover, and then causes heat exchange efficiency low.

In view of this, it is urgently needed to develop a heat exchanger which is suitable for water purification products and has high heat exchange efficiency.

SUMMERY OF THE UTILITY MODEL

Aiming at the problems in the prior art, the utility model aims to provide a pipe-in-pipe heat exchanger which is simple in structure and convenient to connect and is applied to water purifying equipment.

Another object of the present invention is to provide a water purifying apparatus having the above pipe-in-pipe heat exchanger.

In order to achieve the purpose, the utility model adopts the following technical scheme.

A tube-in-tube heat exchanger for use in water purification units, comprising: the heat exchange pipe comprises a heat exchange pipe and interface components arranged at two ends of the heat exchange pipe; the heat exchange tube comprises an inner tube and an outer tube sleeved outside the inner tube; wherein the interface assembly comprises: the second interface of the tee joint is connected with the heat exchange tube, and the first interface and the third interface of the tee joint are respectively communicated with the inner tube and the outer tube; the water purifier is characterized in that a first sealing element, a second sealing element, a first joint component and a second joint component which are used for connecting a PE pipe of the water purifier are respectively arranged on the first interface and the third interface.

More preferably, the first connector and the second connector are respectively provided with threads, and the first joint assembly and the second joint assembly have the same structure, and both of them include: the connector comprises a first interface nut and a fixing nut screwed on the first interface nut; the first interface nut is in threaded connection with the tee joint, a boss with a through hole is arranged on the first interface nut, external threads are arranged on the periphery of the boss, and the boss is connected with a fixing nut for fixing the PE pipe through the external threads; the through hole penetrates from the inner cavity of the first interface nut to the outer wall of the boss.

More preferably, the first seal and the second seal are both sealing gaskets.

More preferably, a convex structure is arranged on the first sealing element, and a concave step matched with the convex structure is arranged in the first interface.

More preferably, the third port is connected with the outer tube of the heat exchange tube through a second port nut and a corresponding sealing element.

More preferably, the first joint component and the second joint component are temperature-resistant quick-connection nuts matched with the PE pipe of the water purifying equipment.

More preferably, the heat exchanger further comprises a box body, and the heat exchanger is arranged in the box body and is fixed by the filler filled in the box body.

More preferably, the inner tube and the outer tube are both bellows.

A water purification unit comprises a heat exchange device, and is characterized in that the heat exchange device is a pipe-in-pipe heat exchanger applied to the water purification unit as described in any one of the above.

The utility model has the beneficial effects that: adopt interface module to connect heat exchange tube and water purification product, simple structure, the convenient connection, production simple process, it is small, be applicable to the household electrical appliances trade, moreover because the space in the pipe is compact, liquid can't be detained, and heat exchange efficiency can be higher.

Drawings

Fig. 1 is a structural view of a tube-in-tube heat exchanger applied to a water purifying apparatus according to the present invention.

Fig. 2 is a structural view illustrating a joint of a tube-in-tube heat exchanger applied to a water purifying apparatus according to the present invention.

Fig. 3 is an exploded view of a joint of a tube-in-tube heat exchanger applied to a water purifying apparatus according to the present invention.

Fig. 4 is a structural view illustrating another embodiment of a joint of a tube-in-tube heat exchanger applied to a water purifying apparatus according to the present invention.

Reference numerals indicate the same.

1: interface component, 2: outer tube, 3: inner tube, 4: a box body, 5: and (4) filling materials.

101: first interface, 102: second interface, 103: third interface, 11: fixing nut, 12: first interface nut, 13: first seal, 14: second seal, 15: tee joint, 16: second interface nut, 21: and (5) quickly connecting a nut.

Detailed Description

In the description of the present invention, it should be noted that, for the terms of orientation, such as "central", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., it indicates that the orientation and positional relationship shown in the drawings are based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated without limiting the specific scope of protection of the present invention.

Furthermore, if the terms "first" and "second" are used for descriptive purposes only, they are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features. Thus, a definition of "a first" or "a second" feature may explicitly or implicitly include one or more of the feature, and in the description of the utility model, "at least" means one or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "assembled", "connected", and "connected" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; or may be a mechanical connection; the two elements can be directly connected or connected through an intermediate medium, and the two elements can be communicated with each other. The specific meanings of the above terms in the present invention can be understood by those of ordinary skill in the art according to specific situations.

In the present application, unless otherwise specified or limited, "above" or "below" a first feature may include the first and second features being in direct contact, and may also include the first and second features not being in direct contact but being in contact with each other through another feature therebetween. Also, the first feature being "above," "below," and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or simply an elevation which indicates a level of the first feature being higher than an elevation of the second feature. The first feature being "above", "below" and "beneath" the second feature includes the first feature being directly below or obliquely below the second feature, or merely means that the first feature is at a lower level than the second feature.

The following describes the embodiments of the present invention with reference to the drawings of the specification, so that the technical solutions and the advantages thereof are more clear and clear. The embodiments described below are exemplary and are intended to be illustrative of the utility model, but are not to be construed as limiting the utility model.

Example 1.

As shown in fig. 1 and 2, a tube-in-tube heat exchanger applied to a water purifying apparatus includes: the heat exchange pipe comprises a heat exchange pipe and interface components 1 arranged at two ends of the heat exchange pipe; the heat exchange tube comprises an inner tube 3 and an outer tube 2 sleeved outside the inner tube 3; wherein, the interface module 1 comprises: the tee joint 15 is arranged on the tee joint 15 and used for being connected with the inner pipe 3 or the outer pipe 2 in a sealing mode, and the joint component is arranged on the outer side of the tee joint 15 and used for being connected with a PE pipe of water purifying equipment. When in actual use, the interface assembly is connected with the two ends of the inner pipe and the outer pipe through the sealing connecting piece, and the sealing is ensured to prevent water leakage; the joint at the outer end of the tee joint can be quickly connected with the PE pipe of a water purification product, and the water purification device is convenient to install, simple in structure, simple in production process and low in cost.

It should be noted that the tee 15 further includes: a first port 101 and a third port 103 at both ends of the tee 15, and a second port 102 at the top end of the tee. And a third interface 103 of the tee is connected with the heat exchange tube, and a first interface 101 and a second interface 102 of the tee are respectively communicated with the inner tube 3 and the outer tube 2. The first connector 101 and the second connector 102 are respectively provided with a first sealing element, a second sealing element, a first joint component and a second joint component, wherein the first joint component and the second joint component are used for connecting a PE pipe of water purification equipment.

Specifically, as shown in fig. 3, the first interface 101 and the second interface 102 are respectively provided with threads, and the first joint assembly and the second joint assembly have the same structure, and both include: a first interface nut 12 and a fixing nut 11 screwed on the first interface nut 12; the first interface nut 12 is in threaded connection with the tee joint, a boss with a through hole is arranged on the first interface nut 12, external threads are arranged on the periphery of the boss, and the boss is connected with a fixing nut 11 for fixing the PE pipe through the external threads; the through hole penetrates from the inner cavity of the first interface nut to the outer wall of the boss.

The first seal 13 and the second seal 14 are both sealing gaskets. A first mounting hole in interference fit with the periphery of the inner pipe 3 is formed in the first sealing element 13; and a second mounting hole for allowing the outer pipe 2 to pass through is formed in the second sealing element 14, and the second mounting hole is in interference fit with the periphery of the outer pipe 2.

The third interface is connected with the outer tube of the heat exchange tube through a second interface nut 16 and a corresponding sealing element. And an avoidance hole for allowing the outer pipe 2 to pass through is formed in the second interface nut 16, and the structure of the sealing element is consistent with that of the second sealing element 14. Of course, in another embodiment, the outer tube 2 may be arranged in sealing connection with the third port.

It should be noted that, in this embodiment, in order to increase the heat exchange area of the heat exchange tube, the inner tube 3 and the outer tube 2 are corrugated tubes. Obviously, the person skilled in the art can arrange the outer tube and the inner tube to be curved in any irregular path according to different actual needs, and can also arrange the outer tube and the inner tube to be a straight tube, which is not limited to this embodiment.

Further, the device also comprises a box body 4 for placing the inner pipe 3 and the outer pipe 2, and a filler 5 for preventing the inner pipe 3 and the outer pipe 2 from moving is arranged in the box body 4. More specifically, the filler can also be an insulating piece for insulating.

More specifically, the bottom surface of the first sealing element 13 is a convex structure matched with the outer end surface of the first connector 101, and a concave step is arranged in the first connector. Therefore, the sealing effect is better realized, and the connection and the positioning of the inner pipe are convenient.

In another embodiment, as shown in fig. 4, the first interface nut may be replaced by a temperature-resistant quick-coupling nut 21, and the quick-coupling nut 21 is connected to the PE pipe of the water purification product through a live nut end located at the outer side.

Example 2.

A water purification unit comprises a heat exchange device, and is characterized in that the heat exchange device is the pipe-in-pipe heat exchanger applied to the water purification unit in embodiment 1.

Wherein, water purification unit still includes: the device comprises a filtering system, a heating device and a water mixing valve; the heat exchange device is connected with the water outlet end of the filtering system, the cold water outlet of the heat exchange device is connected with the water inlet of the heating device, the hot water outlet of the heating device is simultaneously connected with the hot water inlet of the heat exchange device and the water inlet of the water mixing valve, and the warm water outlet of the heat exchange device is connected with the water inlet of the water mixing valve.

It will be appreciated by those skilled in the art from the foregoing description of construction and principles that the utility model is not limited to the specific embodiments described above, and that modifications and substitutions based on the teachings of the art may be made without departing from the scope of the utility model as defined by the appended claims and their equivalents. The details not described in the detailed description are prior art or common general knowledge.

Claims

1. A tube-in-tube heat exchanger for use in water purification units, comprising: the heat exchange pipe comprises a heat exchange pipe and interface components arranged at two ends of the heat exchange pipe; the heat exchange tube comprises an inner tube and an outer tube sleeved outside the inner tube; the interface assembly includes: a third interface of the tee joint is connected with the heat exchange tube, and a first interface and a second interface of the tee joint are respectively communicated with the inner tube and the outer tube; the water purifier is characterized in that a first sealing element, a second sealing element, a first joint component and a second joint component which are used for connecting a PE pipe of the water purifier are respectively arranged on the first interface and the second interface.

2. The tube-in-tube heat exchanger applied to a water purifying device of claim 1, wherein the first connector and the second connector are respectively provided with threads, and the first connector assembly and the second connector assembly have the same structure and both comprise: the connector comprises a first interface nut and a fixing nut screwed on the first interface nut; the first interface nut is in threaded connection with the tee joint, a boss with a through hole is arranged on the first interface nut, external threads are arranged on the periphery of the boss, and the boss is connected with a fixing nut for fixing the PE pipe through the external threads; the through hole penetrates from the inner cavity of the first interface nut to the outer wall of the boss.

3. The tube-in-tube heat exchanger for a water purifying apparatus of claim 1, wherein the first sealing member and the second sealing member are sealing gaskets.

4. The tube-in-tube heat exchanger applied to the water purifying equipment as recited in claim 1 or 3, wherein a convex structure is provided on the first sealing member, and a concave step matched with the convex structure is provided in the first joint.

5. The tube-in-tube heat exchanger applied to the water purifying device as claimed in claim 1, wherein the third port is connected with the outer tube of the heat exchange tube through a second port nut and a corresponding sealing member.

6. The pipe-in-pipe heat exchanger applied to water purification equipment of claim 1, wherein the first joint component and the second joint component are temperature-resistant quick-connection nuts which are matched with PE pipes of the water purification equipment.

7. The tube-in-tube heat exchanger applied to the water purifying device as recited in claim 1, further comprising a box body, wherein the heat exchanging tube is disposed in the box body and fixed by a filler filled in the box body.

8. The tube-in-tube heat exchanger for a water purifying apparatus of claim 1, wherein the inner tube and the outer tube are corrugated tubes.

9. A water purification unit comprises a heat exchange device, and is characterized in that the heat exchange device is the pipe-in-pipe heat exchanger applied to the water purification unit as claimed in any one of claims 1 to 8.