CN217032130U - Double-pipe heat exchanger and hanging stove - Google Patents

Abstract

The present invention relates to a double pipe heat exchanger comprising: the fin group and the flow guide assembly are respectively connected with the composite sleeves. Each composite bushing comprises: the outer tube, wear to establish the first inner tube in the outer tube, and wear to establish the second inner tube in the outer tube. The outer pipe is used for circulating heating water. The first inner pipe is used for circulating the bath water. The second inner tube is used for circulating drinking water. The fin group is sleeved on the outer pipe. The water conservancy diversion subassembly includes: the first fluid director is connected with one end of the composite sleeve and the second fluid director is connected with the other end of the composite sleeve. The first fluid director and the second fluid director are both provided with a plurality of liquid interfaces. The utility model also provides the wall-mounted furnace. The beneficial effects of the utility model are as follows: the composite sleeve, the fin group and the flow guide assembly are adopted to form a water flow structure that the heating water wraps the bathroom water and the drinking water, so that heating of the heating water, the bathroom water and the drinking water is achieved, and the function of the wall-mounted furnace is expanded.

Description

Double-pipe heat exchanger and hanging stove

Technical Field

The utility model relates to the technical field of wall-mounted furnaces, in particular to a double-pipe heat exchanger and a wall-mounted furnace comprising the double-pipe heat exchanger.

Background

The wall-mounted furnace is a heating device which can heat bath water and can also provide indoor heating. At present, there is the hanging stove of a single heat exchanger on the market, and the during operation, the combustor in the hanging stove is through burning the air of gas release heat in order to heat the combustion chamber, and then will flow through the heating water heating that is located the heat exchanger in the combustion chamber through the air after the intensification. When the indoor heating is needed, the heating water flowing out of the heat exchanger flows into the indoor heating pipeline. When the bathroom water needs to be heated, the bathroom water is guided into the heat exchanger to exchange heat with the heating water, and the heated heating water is transferred to the bathroom water to achieve the purpose of heating the bathroom water.

In the heating season, people have a great demand for heated drinking water in addition to heating water and heated bath water. Conventional wall-mounted furnaces are designed for heating of heating water and bathroom water, and cannot be used for heating of drinking water.

SUMMERY OF THE UTILITY MODEL

Based on the structure, the double-pipe heat exchanger provided by the utility model adopts the composite double-pipe, the fin group and the flow guide assembly to form a water flow structure of wrapping bathroom water and drinking water by heating water, so that heating of the heating water, the bathroom water and the drinking water is realized, and the function of the wall-mounted furnace is expanded.

A double pipe heat exchanger comprising:

a plurality of composite sleeves arranged in parallel with each other; each composite bushing comprises: the device comprises an outer pipe, a first inner pipe arranged in the outer pipe in a penetrating mode, and a second inner pipe arranged in the outer pipe in a penetrating mode; the first inner pipe and the second inner pipe are arranged along the extension direction of the outer pipe; the outer pipe is used for circulating heating water; the first inner pipe is used for circulating bath water; the second inner pipe is used for circulating drinking water;

connecting the fin group of the composite sleeve; the fin group is sleeved on the outer pipe; and

the flow guide assembly is connected with the composite sleeve; the water conservancy diversion subassembly includes: the first fluid director is connected with one end of the composite sleeve and the second fluid director is connected with the other end of the composite sleeve; the first fluid director and the second fluid director are both provided with a plurality of liquid connectors; the types of fluid interfaces include: a heating water inlet, a heating water outlet, a bathroom water inlet, a bathroom water outlet, a drinking water inlet, and a drinking water outlet.

When the double-pipe heat exchanger works, the flow guide assemblies respectively enter a heating water source, a bathroom water source and a drinking water source, and liquid connectors on the first flow guide or the second flow guide are selected according to different liquid types for butt joint. Various types of liquids are directed into the composite sleeve via the flow directing assembly. Wherein heating water flows in the outer pipe, bath water flows in the first inner pipe, and drinking water flows in the second inner pipe. The fin group transfers heat absorbed from the outside to the heating water in the outer pipe, thereby heating the heating water. The bathroom water and the drinking water are heated by the heated heating water, so that the heating of the heating water, the bathroom water and the drinking water is realized. Through the design, the composite sleeve, the fin group and the flow guide assembly are adopted to form a water flow structure that the heating water wraps the bathroom water and the drinking water, so that heating of the heating water, the bathroom water and the drinking water is realized, and the function of the wall-mounted furnace is expanded.

In one embodiment, the second inner tube is a food grade stainless steel tube. Based on the requirement of food safety, the second inner pipe is preferably a food-grade stainless steel pipe, which can reduce the probability of drinking water pollution and keep the drinking water clean and sanitary.

In one embodiment, the outer pipes are grouped by the flow guide assembly, and the liquid flow direction of each outer pipe in the same group is the same; or: the outer pipes are sequentially connected end to end through the flow guide assembly; or: each outer tube realizes parallelly connected through the water conservancy diversion subassembly, and the flow direction of each outer tube is the same. According to the different heating efficiency's of heating water demand, can set up different connected mode to the outer tube in the water conservancy diversion subassembly, form different rivers overall arrangement modes.

In one embodiment, the first inner pipes are grouped through the flow guide assembly, and the liquid flow directions of the first inner pipes in the same group are the same; or: the first inner pipes are sequentially connected end to end through the flow guide assembly; or: each first inner pipe is connected in parallel through a flow guide assembly, and the flow direction of each first inner pipe is the same. According to the different heating efficiency's of bathroom water demand, can set up different connected mode to the first inner tube in the water conservancy diversion subassembly, form different rivers overall arrangement modes.

In one embodiment, the second inner pipes are grouped through the flow guide assembly, and the liquid flow directions of the second inner pipes in the same group are the same; or: the second inner pipes are sequentially connected end to end through the flow guide assembly; or: the second inner pipes are connected in parallel through the flow guide assembly, and the flow direction of the second inner pipes is the same. According to the different heating efficiency's of drinking water demand, can set up different connected mode to the second inner tube in the water conservancy diversion subassembly, form different rivers layout mode.

Meanwhile, the utility model also provides the wall-mounted furnace.

A wall-hanging stove comprising the double pipe heat exchanger of any one of the embodiments described above.

The wall-mounted furnace comprises an improved double-pipe heat exchanger. When the water guide device works, the water guide assemblies respectively enter a heating water source, a bathroom water source and a drinking water source, and liquid connectors on the first fluid director or the second fluid director are selected to be in butt joint according to different liquid types. Various types of liquids are directed into the composite sleeve via the flow directing assembly. Wherein the heating water flows in the outer pipe, the bath water flows in the first inner pipe, and the drinking water flows in the second inner pipe. The fin group transfers heat absorbed from the outside to the heating water in the outer pipe, thereby heating the heating water. The bathroom water and the drinking water are heated by the heated heating water, so that the heating water, the bathroom water and the drinking water are heated. Through the design, the composite sleeve, the fin group and the flow guide assembly are adopted to form a water flow structure that the heating water wraps the bathroom water and the drinking water, so that heating of the heating water, the bathroom water and the drinking water is realized, and the function of the wall-mounted furnace is expanded.

In one embodiment, the wall-hanging stove further comprises: a three-way electric control valve connected between the heating water inlet and the heating water outlet; the three-way electric control valve is used for controlling the flow direction of the heating water discharged from the heating water outlet. When bathroom water and/or heating water need to be heated without supplying heating water, the heated heating water can be controlled to flow back to the double pipe heat exchanger through the three-way electric control valve to circularly work.

In one embodiment, the wall-hanging stove further comprises: the water purifier is connected with the flow guide assembly; the water purifier is connected with the drinking water inlet. The water purifier can filter and purify drinking water before the drinking water enters the double-pipe heat exchanger, so that the drinking water is safer and more sanitary.

Drawings

Fig. 1 is a perspective view of a double pipe heat exchanger according to an embodiment of the present invention;

fig. 2 is an inverted perspective view of the double pipe heat exchanger shown in fig. 1;

fig. 3 is a plan view of the double pipe heat exchanger shown in fig. 1;

fig. 4 is a sectional view taken along a-a direction of the double pipe heat exchanger shown in fig. 3;

fig. 5 is a sectional view of a composite bushing in the bushing-type heat exchanger shown in fig. 4;

fig. 6 is a flow diagram of heating water in the double pipe heat exchanger shown in fig. 1;

fig. 7 is a flow diagram of the bath water in the double pipe heat exchanger shown in fig. 1;

fig. 8 is a flow diagram of drinking water in the double pipe heat exchanger shown in fig. 1;

fig. 9 is a schematic structural view of a wall-hanging stove according to an embodiment of the present invention.

The meaning of the reference symbols in the drawings is:

100-wall hanging stove;

10-double pipe heat exchanger, 11-composite sleeve, 111-outer pipe, 112-first inner pipe, 113-second inner pipe, 12-fin group, 13-diversion component, 131-first diversion, 132-second diversion, 133-liquid interface, 133 a-heating water inlet, 133 b-heating water outlet, 133 c-bathroom water inlet, 133 d-bathroom water outlet, 133 e-drinking water inlet, 133 f-drinking water outlet;

20-a combustion chamber;

30-a burner;

a 40-three-way electric control valve;

50-a water pump.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will recognize without departing from the spirit and scope of the present invention.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, but are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the utility model.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless explicitly specified otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature "under," "beneath," and "under" a second feature may be directly under or obliquely under the second feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. As used herein, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are for purposes of illustration only and do not denote a single embodiment.

As shown in fig. 1 to 8, there is a double pipe heat exchanger 10 according to an embodiment of the present invention.

As shown in fig. 1 to 3, the double pipe heat exchanger 10 includes: the composite sleeve comprises a plurality of composite sleeves 11 arranged in parallel, a fin group 12 connected with the composite sleeves 11, and a flow guide assembly 13 connected with the composite sleeves 11. The composite casing 11 is used for heat exchange between heating water and toilet water, and between heating water and drinking water. The fin group 12 is used for realizing heat exchange between heating water and air in a combustion chamber of the wall-hanging stove. The flow guide assembly 13 is used for controlling the communication mode of each composite sleeve 11, so as to control the water flow layout.

Hereinafter, the double pipe heat exchanger 10 described above will be further described with reference to fig. 1 to 8.

As shown in fig. 4 and 5, each composite bushing 11 includes: an outer tube 111, a first inner tube 112 inserted into the outer tube 111, and a second inner tube 113 inserted into the outer tube 111. The first inner tube 112 and the second inner tube 113 are both disposed along the extending direction of the outer tube 111. The outer pipe 111 is used for circulating heating water. The first inner pipe 112 is used for circulating the bath water. The second inner pipe 113 is used to circulate drinking water.

In this embodiment, the second inner tube 113 is a food grade stainless steel tube. Based on the requirement of food safety, the second inner pipe 113 is preferably a food-grade stainless steel pipe, which can reduce the probability of contamination of drinking water and maintain the cleanness and sanitation of the drinking water.

Further, in the present embodiment, the first inner tube 112 and the second inner tube 113 are parallel to each other. In other embodiments, the first inner tube 112 and the second inner tube 113 may be in a double spiral form (i.e., disposed in an interlaced form along the extending direction of the outer appearance).

As shown in fig. 4, the fin group 12 is sleeved on the outer tube 111. In the present embodiment, the fin set 12 includes: a plurality of fins arranged in parallel and at intervals.

As shown in fig. 3, the flow guide assembly 13 includes: a first flow director 131 attached to one end of the composite sleeve 11 and a second flow director 132 attached to the other end of the composite sleeve 11. The first flow director 131 and the second flow director 132 are each provided with a plurality of liquid interfaces 133. As shown in fig. 6, the kinds of the liquid interface 133 include: a heating water inlet 133a, a heating water outlet 133b, a sanitary water inlet 133c, a sanitary water outlet 133d, a drinking water inlet 133e, and a drinking water outlet 133 f.

In the present embodiment, various liquids in the composite casing 11 can achieve different flow direction distributions through the flow guide assembly 13.

For example, the outer tubes 111 are grouped by the flow guide assembly 13, and the liquid flow direction of each outer tube 111 in the same group is the same. Or: the outer pipes 111 are sequentially connected end to end through the flow guide assembly 13. Or: the outer pipes 111 are connected in parallel through the flow guide assembly 13, and the flow direction of the outer pipes 111 is the same. According to the different heating efficiency's of heating water demand, can set up different connected mode to outer tube 111 in water conservancy diversion subassembly 13, form different rivers overall arrangement modes.

For example, the first inner tubes 112 are grouped by the flow guide assembly 13, and the liquid flow direction of each first inner tube 112 in the same group is the same. Or: the first inner pipes 112 are connected end to end in sequence through the flow guide assembly 13. Or: the first inner pipes 112 are connected in parallel through the flow guide assembly 13, and the flow direction of each first inner pipe 112 is the same. According to the requirements of different heating efficiencies of the bath water, different connection modes can be set for the first inner pipe 112 in the flow guide assembly 13, so that different water flow layout modes are formed.

For example, the second inner tubes 113 are grouped by the flow guide assembly 13, and the liquid flow direction of each second inner tube 113 in the same group is the same. Or: the second inner pipes 113 are connected end to end in sequence through the flow guide assembly 13. Or: the second inner pipes 113 are connected in parallel through the flow guide assembly 13, and the flow direction of each second inner pipe 113 is the same. According to the different heating efficiency's of drinking water demand, can set up different connected mode to second inner tube 113 among the water conservancy diversion subassembly 13, form different rivers overall arrangement modes.

The types of the liquid ports 133 on the first and second fluid directors 131 and 132 may also be adaptively adjusted according to different settings of the flow direction distribution of the liquid in the composite sleeve 11.

For example, in the present embodiment, one implementation is shown, as shown in fig. 6, the heating water enters from the heating water inlet 133a of the first flow director 131 and then is split, each branch flows from the three same composite sleeves 11 to the second flow director 132 and then merges, and then is split again by the second flow director 132, each branch flows from the three same composite sleeves 11 to the first flow director 131 and then merges, and finally flows out from the heating water outlet 133 b. As shown in fig. 7, the bath water enters from the sanitary water inlet 133c of the second flow guide 132, passes through the composite sleeves 11 in sequence, and finally flows out from the sanitary water outlet 133d of the second flow guide 132. As shown in fig. 8, the drinking water enters from the drinking water inlet 133e of the first fluid director 131 and then is split, and each branch flows from the side by side to the second fluid director 132 and then merges, and finally flows out from the drinking water outlet 133f of the second fluid director 132.

The working principle is briefly described as follows:

as shown in fig. 6 to 7, in operation, the diversion assembly 13 enters into a heating water source, a sanitary water source, and a drinking water source, and the liquid connectors 133 on the first diversion device 131 or the second diversion device 132 are selected according to different liquid types for docking. Various types of liquids are channeled into composite casing 11 via flow directing assembly 13. Among them, heating water flows in the outer pipe 111, bath water flows in the first inner pipe 112, and drinking water flows in the second inner pipe 113. The fin group 12 transfers heat absorbed from the outside to the heating water in the outer pipe 111, thereby heating the heating water. The bathroom water and the drinking water are heated by the heated heating water, so that the heating water, the bathroom water and the drinking water are heated.

The double-pipe heat exchanger 10 adopts the composite sleeve 11, the fin group 12 and the flow guide assembly 13 to form a water flow structure that the heating water wraps the bathroom water and the drinking water, so that heating of the heating water, the bathroom water and the drinking water is realized, and functions of the wall-mounted furnace are expanded.

As shown in fig. 9, the wall-hanging stove 100 according to an embodiment of the present invention is further provided.

As shown in fig. 9, the wall-hanging furnace 100 includes the double pipe heat exchanger 10 described above. Specifically, in the present embodiment, the wall-hanging stove 100 includes: a combustion chamber 20, a burner 30 located within the combustion chamber 20, and a double pipe heat exchanger 10 located within the combustion chamber 20. The combustor 20 heats air in the combustor 20 by burning gas, and the heated air transfers heat to heating water in the double pipe heat exchanger 10.

As shown in fig. 9, in the present embodiment, the wall-hanging stove 100 may further include: and a three-way electric control valve 40 connected between the heating water inlet 133a and the heating water outlet 133 b. The three-way electric control valve 40 serves to control the flow direction of the heating water discharged from the heating water outlet 133 b. When it is required to heat the bathroom water and/or the heating water without supplying the heating water, the heated heating water may be controlled by the three-way electric control valve 40 to flow back into the double pipe heat exchanger 10 to be circulated.

As shown in fig. 9, in the present embodiment, the wall-hanging stove 100 may further include: a water purifier connected with the diversion component 13. The water purifier is connected to the drinking water inlet 133 e. The water purifier can filter and purify the drinking water before the drinking water enters the double pipe heat exchanger 10, so that the drinking water is safer and more sanitary.

Further, as shown in fig. 9, in the present embodiment, in order to control the supply amount of the heating water, the wall-hanging stove 100 further includes: and a water pump 50 connecting the shell and tube heat exchanger 10, the water pump 50 being connected to the heating water inlet 133 a.

The wall-hanging stove 100 includes a double pipe heat exchanger 10 of an improved type. When the water guide assembly 13 works, the water guide assembly enters a heating water source, a bathroom water source and a drinking water source respectively, and the liquid connectors 133 on the first fluid director 131 or the second fluid director 132 are selected to be butted according to different liquid types. Various types of liquids are channeled into composite sleeve 11 via flow directing assembly 13. Wherein heating water flows in the outer pipe 111, bath water flows in the first inner pipe 112, and drinking water flows in the second inner pipe 113. The fin group 12 transfers heat absorbed from the outside to the heating water in the outer pipe 111, thereby heating the heating water. The bathroom water and the drinking water are heated by the heated heating water, so that the heating of the heating water, the bathroom water and the drinking water is realized. Through the design, the composite sleeve 11, the fin group 12 and the flow guide assembly 13 are adopted to form a water flow structure of wrapping bathroom water and drinking water in the heating water, so that heating of the heating water, the bathroom water and the drinking water is achieved, and functions of the wall-mounted furnace 100 are expanded.

The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above examples only express preferred embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent should be subject to the appended claims.

Claims (14)

1. A double pipe heat exchanger, comprising:

a plurality of composite sleeves arranged in parallel with each other; each of the composite sleeves comprises: the device comprises an outer pipe, a first inner pipe arranged in the outer pipe in a penetrating mode, and a second inner pipe arranged in the outer pipe in a penetrating mode; the first inner pipe and the second inner pipe are arranged along the extension direction of the outer pipe; the outer pipe is used for circulating heating water; the first inner pipe is used for circulating bath water; the second inner pipe is used for circulating drinking water;

the fin group is connected with the composite sleeve; the fin group is sleeved on the outer pipe; and

the flow guide assembly is connected with the composite sleeve; the flow guide assembly comprises: the first fluid director is connected with one end of the composite sleeve and the second fluid director is connected with the other end of the composite sleeve; the first fluid director and the second fluid director are both provided with a plurality of liquid interfaces; the types of the liquid interface include: a heating water inlet, a heating water outlet, a bathroom water inlet, a bathroom water outlet, a potable water inlet, and a potable water outlet.

2. The double pipe heat exchanger according to claim 1, wherein the second inner pipe is a stainless steel pipe of food grade.

3. The double pipe heat exchanger according to claim 1, wherein the outer pipes are grouped by the flow guide assembly, and the liquid flow direction of each of the outer pipes in the same group is the same.

4. The double pipe heat exchanger according to claim 1, wherein the outer pipes are sequentially connected end to end by the flow guide assembly.

5. The double pipe heat exchanger according to claim 1, wherein the outer pipes are connected in parallel by the flow guide assembly, and the flow direction of the outer pipes is the same.

6. The double pipe heat exchanger according to claim 1, wherein the first inner pipes are grouped by the flow guide assembly, and a liquid flow direction of each of the first inner pipes in the same group is the same.

7. The double pipe heat exchanger according to claim 1, wherein each of the first inner pipes is connected end to end in sequence by the flow guide assembly.

8. The double pipe heat exchanger according to claim 1, wherein the first inner pipes are connected in parallel by the flow guide assembly, and a flow direction of each of the first inner pipes is the same.

9. The double pipe heat exchanger according to claim 1, wherein the second inner pipes are grouped by the flow guide assembly, and a liquid flow direction of each of the second inner pipes in the same group is the same.

10. The double pipe heat exchanger according to claim 1, wherein each of the second inner pipes is connected end to end in sequence by the flow guide assembly.

11. The double pipe heat exchanger according to claim 1, wherein the second inner pipes are connected in parallel by the flow guide assembly, and the flow direction of the second inner pipes is the same.

12. A wall-hanging stove comprising the double pipe heat exchanger according to any one of claims 1 to 11.

13. The wall hanging stove of claim 12, further comprising: a three-way electric control valve connected between the heating water inlet and the heating water outlet; the three-way electric control valve is used for controlling the flow direction of the heating water discharged from the heating water outlet.

14. The wall hanging stove according to claim 12, further comprising: the water purifier is connected with the flow guide assembly; the water purifier is connected with the drinking water inlet.

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