CN210689274U - Heat exchanger and gas water heater with same - Google Patents
Heat exchanger and gas water heater with same Download PDFInfo
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- CN210689274U CN210689274U CN201920798523.3U CN201920798523U CN210689274U CN 210689274 U CN210689274 U CN 210689274U CN 201920798523 U CN201920798523 U CN 201920798523U CN 210689274 U CN210689274 U CN 210689274U
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Abstract
The utility model discloses a heat exchanger and have gas heater of this heat exchanger, this heat exchanger includes: the heat exchanger comprises a heat exchanger water pipe, a heat exchanger end plate and a heat exchanger communicating plate for sealing the heat exchanger end plate; the heat exchanger end plate is provided with a plurality of water pipe communication holes, bosses are arranged on the periphery of the water pipe communication holes, and the bosses are arranged on the surface of the end plate in a protruding manner along a first direction; the heat exchanger water pipe is provided with an extension section which extends along a first direction, and the extension section is arranged in the water pipe communication hole and the boss in a penetrating way and is welded with the boss in a sealing way; the first direction is a direction from inside to outside the heat exchanger. The utility model discloses a heat exchanger and have gas heater of this heat exchanger sets the direction of extension through the outstanding direction with the boss on the heat exchanger end plate to unanimous with the heat exchanger water pipe for operating personnel welds the possibility to end plate and water pipe, end plate and intercommunication board externally, and then makes things convenient for welding operation, reduction in manufacturing cost.
Description
Technical Field
The utility model relates to a gas heater technical field especially relates to a heat exchanger and have gas heater of this heat exchanger.
Background
The gas water heater is also called as a gas water heater, and refers to a gas appliance which takes gas as fuel and transfers heat to cold water flowing through a heat exchanger in a combustion heating mode so as to achieve the purpose of preparing hot water. The high-pressure gas burner mainly comprises a valve body assembly, a burner, a heat exchanger, a safety device and the like.
However, the gas water heater in the prior art has high manufacturing cost and poor qualification rate.
SUMMERY OF THE UTILITY MODEL
A first object of the present invention is to provide a heat exchanger which solves at least one of the above-mentioned problems.
In order to realize the purpose, the technical scheme of the utility model is that:
a heat exchanger, comprising:
the heat exchanger comprises a heat exchanger water pipe, a heat exchanger end plate and a heat exchanger communicating plate for sealing the heat exchanger end plate;
the heat exchanger end plate is provided with a plurality of water pipe communication holes, bosses are arranged on the periphery of the water pipe communication holes, and the bosses are arranged on the surface of the end plate in a protruding manner along a first direction;
the heat exchanger water pipe is provided with an extension section which extends along the first direction, and the extension section is arranged in the water pipe communication hole and the boss in a penetrating mode and is welded with the boss in a sealing mode; the end face of one end of the extending section extending out of the surface of the end plate and the end face of one end of the protruding end plate of the boss are on the same plane to form a first welding end face; the first direction is a direction from inside to outside the heat exchanger.
Specifically, the distance that the extension extends out of the surface of the end plate is the same as the distance that the boss extends out of the surface of the end plate, so as to form the first welding end face.
Preferably, the first welding end face is welded by argon arc welding, so that the heat exchanger water pipe and the boss are welded together.
Preferably, the extension section is in interference fit with the boss, so that the extension section is tightly attached to the boss.
In other embodiments, the heat exchanger end plate has a first flange arranged along a second direction at the periphery thereof, so that the heat exchanger end plate forms a first cavity;
the heat exchanger water pipe is arranged in the water pipe communication hole in a penetrating mode and communicated with the first cavity;
the periphery of the heat exchanger communicating plate is provided with a second flanging arranged along the second direction;
the heat exchanger communicating plate is arranged in the first cavity, and the first flanging and the second flanging are welded together in a sealing manner so as to cover the first cavity; the end face of the first flanging is flush with the end face of the second flanging to form a second welding end face; the second direction is a direction from inside to outside the heat exchanger.
Specifically, the end surface of the first flange is flush with the end surface of the second flange to form a second welding end surface.
Preferably, the second flange is in interference fit with the first flange.
Preferably, the second welding end face is welded by argon arc welding, so that the heat exchanger end plate and the heat exchanger communicating plate are welded together.
In still other embodiments, the heat exchanger further comprises a heat exchanger body comprising a combustion chamber, and a heat exchanger housing encasing the combustion chamber;
a first water passing groove is formed in the heat exchanger shell, and a water flow channel for water to pass through is formed between the first water passing groove and the outer wall of the combustion chamber;
or a second water through groove is arranged on the outer wall of the combustion chamber, and a water flow channel for water flow to pass through is formed between the second water through groove and the outer wall of the combustion chamber;
or a first water through groove is arranged on the heat exchanger shell, a second water through groove is arranged on the outer wall of the combustion chamber, and the first water through groove and the second water through groove correspond to each other to form a water flow channel for water flow to pass through;
and two ends of the water flow channel are respectively communicated with the water inlet pipe and the water outlet pipe.
Preferably, the first water passing groove is spirally arranged on the heat exchanger shell, or the first water passing groove comprises a plurality of sections of first horizontal grooves, each section of the first horizontal groove is horizontally arranged, and two adjacent sections of the first horizontal grooves are communicated with each other;
the second water through groove is spirally arranged on the outer wall of the combustion chamber, or the second water through groove comprises a plurality of sections of second horizontal grooves, each section of the second horizontal grooves are horizontally arranged, and the adjacent two sections of the second horizontal grooves are communicated with each other.
Preferably, the first water passing groove further comprises a plurality of sections of first communicating grooves, the first communicating grooves are used for communicating two adjacent sections of the first horizontal grooves, and the first communicating grooves respectively form a water inlet and a water outlet on the two adjacent sections of the first horizontal grooves;
the second water through grooves further comprise a plurality of sections of second communicating grooves, the second communicating grooves are used for communicating two adjacent sections of the second horizontal grooves, and the second communicating grooves respectively form a water inlet and a water outlet on the two adjacent sections of the second horizontal grooves;
a water separation sheet is arranged at the position close to the water outlet, and the water separation sheet is arranged at one side of the water outlet close to the water inlet.
It is still another object of the present invention to provide a gas heat exchanger, which includes the above heat exchanger.
Compared with the prior art, the utility model discloses a heat exchanger and have gas heater of this heat exchanger sets to unanimous with the direction of the extension of heat exchanger water pipe through the outstanding direction with the boss on the heat exchanger end plate, and/or sets to the turn-ups direction with the intercommunication board with the turn-ups direction of the turn-ups of end plate for operating personnel welds the possibility to end plate and water pipe, end plate and intercommunication board externally, and then makes things convenient for the welding operation, makes manufacturing cost reduce.
For a better understanding and an implementation, the present invention is described in detail below with reference to the accompanying drawings.
Drawings
Fig. 1 is a schematic structural diagram of a heat exchanger according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a heat exchanger end plate according to an embodiment of the present invention;
fig. 3 is a schematic cross-sectional view of a heat exchanger end plate according to an embodiment of the present invention;
fig. 4 is a schematic connection diagram of a heat exchanger water pipe, a heat exchanger end plate and a heat exchanger communication plate according to an embodiment of the present invention;
FIG. 5 is an enlarged view at A in FIG. 4;
FIG. 6 is an enlarged view at B in FIG. 4;
fig. 7 is a schematic structural diagram of a heat exchanger body according to an embodiment of the present invention;
FIG. 8 is an enlarged view at C in FIG. 7;
fig. 9 is a schematic structural diagram of a preferred heat exchanger body according to an embodiment of the present invention;
FIG. 10 is an enlarged view at D of FIG. 9;
fig. 11 is a schematic view of the water flow direction of a preferred heat exchanger body according to an embodiment of the present invention.
Detailed Description
In order to better illustrate the present invention, the following detailed description of the present invention is made with reference to the accompanying drawings.
The heat exchanger of the gas water heater comprises a heat exchanger main body and a heat exchanger water pipe arranged on the heat exchanger main body in a penetrating mode, and the heat exchanger water pipe extends out of the outer wall of the heat exchanger. The heat exchanger is characterized in that a heat exchanger end plate is arranged outside the outer wall of the heat exchanger, a plurality of water pipe communication holes are formed in the end plate, and the heat exchanger water pipes are welded in the water pipe communication holes. The heat exchanger also comprises a heat exchanger communicating plate which is welded with the heat exchanger end plate and is used for being connected with the heat exchanger end plate in a sealing mode, and preferably, a water pipe joint communicated with the water inlet pipe and the water outlet pipe is arranged on the heat exchanger communicating plate.
When welding a water pipe and an end plate of a heat exchanger and welding an end plate of the heat exchanger and a communicating plate of the heat exchanger, the prior art generally adopts the following method: firstly, cleaning and decontaminating a water pipe, an end plate and a communicating plate of a heat exchanger, coating scaling powder on the parts to be welded and paving welding flux on the parts, then sleeving the end plate of the heat exchanger on the water pipe, and connecting and fixing the communicating plate and the end plate; and then the heat exchanger is placed into a brazing furnace, so that the solder is melted to connect the water pipe with the end plate and the end plate with the communicating plate.
Example 1
The gas water heater can generate the problem of water leakage after being used for a period of time, thereby bringing potential safety hazards; particularly, at the joint of the water pipe of the heat exchanger and the end plate of the heat exchanger, repair welding of the water leakage part is almost impossible.
In order to solve the technical problem, the utility model provides a heat exchanger, it can effectively solve this technical problem to reduce gas heater's manufacturing cost and improve gas heater's product percent of pass.
As shown in fig. 1, for the heat exchanger of the embodiment of the present invention, it includes:
the heat exchanger comprises a heat exchanger main body 10, a heat exchanger water pipe 20, a heat exchanger end plate 30 and a heat exchanger communication plate 40, wherein the heat exchanger water pipe 20, the heat exchanger end plate 30 and the heat exchanger communication plate 40 are arranged on the heat exchanger main body 10.
As shown in fig. 2, a plurality of water pipe communication holes 31 are formed in the heat exchanger end plate 30. A boss 32 is provided at the periphery of the water pipe communication hole 31, and as shown in fig. 3, the boss 32 is provided to protrude from the surface of the end plate 30 in the first direction. Preferably, the boss 32 is of integral design with the heat exchanger end plate 30. For example, the boss 32 is punched and stamped from the end plate 30.
As shown in fig. 4, the heat exchanger water tube 20 has an extension 21 extending along the first direction 1, and the extension 21 is inserted into the water tube communication hole 31 and the boss 32 and is hermetically welded to the boss 32.
As shown in fig. 5, an end face of the extension 21 protruding from the surface of the end plate 30 and an end face of the boss 32 protruding from the surface of the end plate are on the same plane to form a first welding end face 3.
The first direction 1 is a direction from the inside to the outside of the heat exchanger.
The utility model discloses a heat exchanger, through making the extension stretch out the terminal surface of end plate, be in the coplanar with the terminal surface of boss protrusion end plate on, form first welding terminal surface, the welding operator is through operating at first welding terminal surface, avoids appearing the face of weld undersize of heat exchanger end plate and heat exchanger water pipe, and the condition that leads to leaking easily takes place.
Furthermore, the utility model discloses a heat exchanger sets the outstanding direction of boss through with on the heat exchanger end plate to unanimous with the direction of the extension of heat exchanger water pipe, just the first direction is from the inside outside direction of heat exchanger. Even if the welding junction of the heat exchanger water pipe and the heat exchanger end plate faces a welding operator. If the problem of water leakage occurs at the joint of the water pipe and the end plate, a welding operator can directly perform repair welding on the welding joint of the water pipe and the end plate externally, and the difficulty that repair welding is difficult in the prior art is effectively overcome.
In a preferred embodiment, the first welding end face 3 is welded by argon arc welding, so that the heat exchanger water pipe and the boss are welded together.
The heat exchanger provided by the embodiment of the utility model adopts argon arc welding to weld on the first welding end surface, thereby replacing the mode of coating soldering flux and solder at the joint of the heat exchanger water pipe and the heat exchanger end plate to carry out silver brazing in the prior art, on one hand, because the soldering flux and the solder are not required to be coated any more, and the complex process of silver brazing is saved, thereby greatly saving the manufacturing cost; on the other hand, as argon arc welding is adopted, the plates at the joint of the water pipe and the end plate are fused together, the connection strength of the water pipe and the end plate is greatly enhanced, the qualification rate of products is further effectively improved, and the water leakage phenomenon at the joint of the water pipe and the end plate is effectively reduced.
Specifically, as shown in fig. 5, the extension 21 extends beyond the end plate surface by the same distance as the projection end surface of the boss 32 to form the first welding end face 3.
As shown in fig. 5, preferably, the extension 21 is in interference fit with the boss 32, so that the extension 21 is tightly attached to the boss 32. Through extension section 21 with boss 32 interference fit makes extension section 21 and boss 32 be in the same place the back, and the terminal surface juncture gap is minimum for it is better to adopt argon arc welding to weld the effect at first welding terminal surface 3.
Example 2
The embodiment is a further improved scheme on the basis of the embodiment 1.
The gas water heater can generate the problem of water leakage after being used for a period of time, thereby bringing potential safety hazards; particularly, at the joint of the end plate of the heat exchanger and the communicating plate of the heat exchanger, repair welding of the water leakage part is almost impossible.
In order to solve the technical problem, the utility model provides a heat exchanger, it can effectively solve this technical problem to reduce gas heater's manufacturing cost and improve gas heater's product percent of pass.
As shown in fig. 1, the heat exchanger according to the embodiment of the present invention is mainly different from embodiment 1 in that:
as shown in fig. 2, a first flange 33 is arranged along the second direction 2 at the periphery of the heat exchanger end plate 30, so that the heat exchanger end plate forms a first cavity 34; the heat exchanger water pipe 20 is arranged in the water pipe communication hole 31 in a penetrating way and communicated with the first cavity 34;
as shown in fig. 4, the periphery of the heat exchanger communication plate 40 has a second burring 41 provided along the second direction 2;
the heat exchanger communicating plate 40 is arranged in the first cavity 34, and the first flange 33 and the second flange 41 are welded together in a sealing manner so as to cover the first cavity 34;
as shown in fig. 6, the end surface of the first flange 33 is flush with the end surface of the second flange 41 to form a second welding end surface 4;
the second direction 2 is the direction from the inside to the outside of the heat exchanger. Preferably, the second direction 2 and the first direction 1 are parallel to each other.
The utility model discloses heat exchanger, through the terminal surface that makes the peripheral end plate of heat exchanger end plate, be in the coplanar with the terminal surface of the peripheral end plate of heat exchanger intercommunication board, form second welding terminal surface, the welding operator is through operating at second welding terminal surface, avoids appearing the face of weld undersize of heat exchanger end plate and heat exchanger intercommunication board, and the condition that leads to leaking easily takes place.
Furthermore, the utility model discloses a heat exchanger sets to the second turn-ups on the heat exchanger intercommunication board through the first turn-ups on with the heat exchanger end plate set up the direction unanimous, just the second direction is from the inside outside direction of going of heat exchanger. Even if the welding junction of the heat exchanger end plate and the heat exchanger communicating plate faces a welding operator. If the problem of water leakage occurs at the joint of the communicating plate and the end plate, a welding operator can directly perform repair welding on the welding joint of the communicating plate and the end plate externally, and the difficulty that repair welding is difficult in the prior art is effectively overcome.
In a preferred embodiment, argon arc welding is used for welding the second welding end face 4, so that the heat exchanger end plate 30 and the heat exchanger communication plate 40 are welded together.
The heat exchanger provided by the embodiment of the utility model adopts argon arc welding to weld on the second welding end surface, thereby replacing the mode of coating soldering flux and solder at the joint of the heat exchanger communicating plate and the heat exchanger end plate to carry out silver brazing in the prior art, on one hand, because the soldering flux and the solder are not required to be coated any more, and the complex process of silver brazing is saved, the manufacturing cost is greatly saved; on the other hand, as argon arc welding is adopted, the connecting plate is fused with the plate at the connecting part of the connecting plate and the end plate, so that the connecting strength of the connecting plate and the end plate is greatly enhanced, the qualification rate of products is further effectively improved, and the water leakage phenomenon at the connecting part of the connecting plate and the end plate is effectively reduced.
As shown in fig. 6, preferably, the second flange 41 is in interference fit with the first flange 33, so that the second flange 41 is tightly attached to the first flange 33. Through the interference fit of the second flanging 41 and the first flanging 33, after the second flanging 41 is connected with the first flanging 33, the gap at the junction of the end faces is extremely small, so that the welding effect of argon arc welding on the second welding end face 4 is better.
Example 3
The embodiment is a further improvement scheme on the basis of the embodiment 1 and/or the embodiment 2.
The heat exchanger of the existing gas water heater is generally formed by coiling and welding a metal water pipe on the outer wall of a combustion chamber, and the contact area between the metal water pipe and the outer wall of the combustion chamber is small, so that the heat exchange efficiency is not high enough.
In order to solve the technical problem, the utility model provides a heat exchanger, it can effectively solve this technical problem, further improves the heat exchange efficiency of heat exchanger.
As shown in fig. 1, the heat exchanger according to the embodiment of the present invention is mainly different from the heat exchanger according to embodiment 1 or 2 in that:
as shown in fig. 7, the heat exchanger main body 10 includes a combustion chamber 11, and a heat exchanger housing 12 wrapped around the combustion chamber 11;
as shown in fig. 7 and 8, a first water passing groove 121 is arranged on the heat exchanger shell 12, and a water flow channel 5 for passing water is formed between the first water passing groove 121 and the outer wall of the combustion chamber 11;
or a second water passing groove 112 is arranged on the outer wall of the combustion chamber 11, and a water flow channel 5 for water to pass through is formed between the second water passing groove 112 and the outer wall of the heat exchanger shell 12;
or a first water passing groove 121 is arranged on the heat exchanger shell 12, a second water passing groove 112 is arranged on the outer wall of the combustion chamber 11, and the first water passing groove and the second water passing groove correspond to each other to form a water flow channel 5 for water flow to pass through;
and two ends of the water flow channel 5 are respectively communicated with the water inlet pipe and the water outlet pipe.
In a preferred embodiment, as shown in fig. 9, 10 and 11, the first water passing groove 121 is spirally arranged on the heat exchanger shell 12, or the first water passing groove 121 includes a plurality of sections of first horizontal grooves 1211, each section of the first horizontal grooves 1211 is horizontally arranged, and two adjacent sections of the first horizontal grooves 1211 are communicated with each other;
the second water passing groove 112 is spirally arranged on the outer wall 11 of the combustion chamber, or the second water passing groove 112 includes a plurality of sections of second horizontal grooves 1121, each section of the second horizontal groove 1121 is horizontally arranged, and two adjacent sections of the second horizontal grooves 1121 are communicated with each other.
Further, the first water passing groove 121 further includes a plurality of first communicating grooves 1212, the first communicating grooves 1212 are used for communicating two adjacent sections of the first horizontal groove 1211, and the first communicating grooves respectively form a water inlet and a water outlet on the two adjacent sections of the first horizontal groove;
in a preferred embodiment, the second water passing groove 112 further includes several sections of second communicating grooves, the second communicating groove 1122 is used for communicating two adjacent sections of the second horizontal grooves, and the second communicating grooves form a water inlet and a water outlet on two adjacent sections of the second horizontal grooves respectively. Without affecting the understanding, the drawings do not show a schematic structure of the second communication groove.
As shown in fig. 11, a water-blocking sheet 13 is disposed near the water outlet, and the water-blocking sheet is disposed on one side of the water outlet near the water inlet.
It is to be noted that different embodiments or examples and features of different embodiments or examples described in this specification may be combined and combined by one skilled in the art without contradiction.
In the description of the present invention, it should be understood that the terms "vertical", "horizontal", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the scope of the present invention.
If the terms "first," "second," etc. are used herein to define parts, those skilled in the art will recognize that: the use of "first" and "second" is merely for convenience in describing the invention and to simplify the description, and the words are not intended to have a special meaning unless otherwise stated.
The present invention is not limited to the above embodiment, and if various modifications or variations of the present invention do not depart from the spirit and scope of the present invention, they are intended to be covered if they fall within the scope of the claims and the equivalent technology of the present invention.
Claims (7)
1. A heat exchanger, comprising:
the heat exchanger comprises a heat exchanger water pipe, a heat exchanger end plate and a heat exchanger communicating plate for sealing the heat exchanger end plate;
the heat exchanger end plate is provided with a plurality of water pipe communication holes, bosses are arranged on the periphery of the water pipe communication holes, and the bosses are arranged on the surface of the end plate in a protruding manner along a first direction;
the heat exchanger water pipe is provided with an extension section which extends along the first direction, and the extension section is arranged in the water pipe communication hole and the boss in a penetrating mode and is welded with the boss in a sealing mode;
the end face of one end of the extending section extending out of the surface of the end plate and the end face of one end of the protruding end plate of the boss are on the same plane to form a first welding end face;
the first direction is a direction from inside to outside the heat exchanger.
2. The heat exchanger of claim 1, wherein:
and the first welding end face is welded by argon arc welding, so that the heat exchanger water pipe and the boss are welded together.
3. The heat exchanger of claim 1, wherein:
the extension section is in interference fit with the boss, so that the extension section is tightly attached to the boss.
4. The heat exchanger of claim 1, wherein:
the periphery of the heat exchanger end plate is provided with a first flanging arranged along a second direction, so that the heat exchanger end plate forms a first cavity; the heat exchanger water pipe is arranged in the water pipe communication hole in a penetrating mode and communicated with the first cavity;
the periphery of the heat exchanger communicating plate is provided with a second flanging arranged along the second direction;
the heat exchanger communicating plate is arranged in the first cavity, and the first flanging and the second flanging are welded together in a sealing manner so as to cover the first cavity;
the end face of the first flanging is flush with the end face of the second flanging to form a second welding end face;
the second direction is a direction from inside to outside the heat exchanger.
5. The heat exchanger of claim 4, comprising:
the second flanging is in interference fit with the first flanging.
6. The heat exchanger of claim 4, wherein:
and the second welding end face is welded by argon arc welding, so that the heat exchanger end plate and the heat exchanger communicating plate are welded together.
7. A gas water heater, comprising:
the heat exchanger of any one of claims 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920798523.3U CN210689274U (en) | 2019-05-29 | 2019-05-29 | Heat exchanger and gas water heater with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920798523.3U CN210689274U (en) | 2019-05-29 | 2019-05-29 | Heat exchanger and gas water heater with same |
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| CN210689274U true CN210689274U (en) | 2020-06-05 |
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| CN201920798523.3U Active CN210689274U (en) | 2019-05-29 | 2019-05-29 | Heat exchanger and gas water heater with same |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110108137A (en) * | 2019-05-29 | 2019-08-09 | 梁宝锋 | A kind of heat exchanger and the gas heater with the heat exchanger |
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2019
- 2019-05-29 CN CN201920798523.3U patent/CN210689274U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110108137A (en) * | 2019-05-29 | 2019-08-09 | 梁宝锋 | A kind of heat exchanger and the gas heater with the heat exchanger |
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