CN219693423U - Dual-purpose stove - Google Patents
Dual-purpose stove Download PDFInfo
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- CN219693423U CN219693423U CN202320305907.3U CN202320305907U CN219693423U CN 219693423 U CN219693423 U CN 219693423U CN 202320305907 U CN202320305907 U CN 202320305907U CN 219693423 U CN219693423 U CN 219693423U
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- heat exchange
- pipe
- water
- pipeline
- dual
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 92
- 239000008236 heating water Substances 0.000 claims abstract description 56
- 238000010438 heat treatment Methods 0.000 claims abstract description 31
- 238000002485 combustion reaction Methods 0.000 claims abstract description 17
- 238000000034 method Methods 0.000 claims abstract description 3
- 230000001502 supplementing effect Effects 0.000 claims description 17
- 239000007789 gas Substances 0.000 claims description 10
- 230000008602 contraction Effects 0.000 claims description 4
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 3
- 239000003546 flue gas Substances 0.000 claims description 3
- 239000013589 supplement Substances 0.000 description 3
- 230000017525 heat dissipation Effects 0.000 description 2
- 230000004308 accommodation Effects 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
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- Steam Or Hot-Water Central Heating Systems (AREA)
Abstract
The utility model discloses a dual-purpose furnace, which comprises a combustion heat exchange device (1); a heat exchanger (2); a heat exchange pipe (3); a heating water inlet pipe (4 a) and a heating water outlet pipe (4 b); a living water inlet pipe (5 a) and a living water outlet pipe (5 b); a delivery pump (6); the method is characterized in that: the first heat exchange section (31) comprises a first pipe part (311), a second pipe part (312) and a third pipe part (313) which are connected in sequence, the delivery pump (6) is arranged on the second pipe part (312) and can deliver water flow from the inlet end of the second pipe part (312) to the outlet end of the second pipe part (312); and the reversing valve (8) is also included, and two mutually independent communication channels (81) are formed in the reversing valve. Compared with the prior art, the dual-purpose furnace can uniformly heat each room in a heating mode.
Description
Technical Field
The utility model relates to the technical field of heating equipment, in particular to a dual-purpose furnace.
Background
At present, some houses are provided with a hydrothermal heating device such as floor heating, and in these houses, in addition to domestic water supply, additional water supply is required to the corresponding hydrothermal heating device to perform heating. Therefore, the common gas water heater cannot supply hot water of domestic water and heating water of the hydrothermal heating equipment at the same time, and a dual-purpose stove is required to supply hot water and heating water of the domestic water at the same time.
As shown in fig. 1, in the conventional dual-purpose furnace, a three-way valve 7' is used for switching control between the inner circulation and the outer circulation: under the heating mode, the dual-purpose furnace is switched to external circulation, the heat exchange pipeline 3 'is communicated with the heating pipeline 4', under the action of the circulating pump 6', water in the heat exchange pipeline 3' is heated by the combustion heat exchange device 1 'and then is discharged into the heating pipeline 4', and the hot water flows through each room through the external circulation, so that heating is realized; under the domestic hot water mode, the dual-purpose furnace is switched to the internal circulation, the heat exchange pipeline 3 'forms a circulation loop, and under the action of the circulating pump 6', hot water exchanges heat with the domestic hot water pipeline 5 'when flowing through the heat exchanger 2' through the internal circulation, so that the supply of domestic hot water is realized, at the moment, the heat exchange pipeline 3 'is not communicated with the heating pipeline 4', the external circulation is interrupted, and heating is automatically stopped until the use of the domestic hot water is finished. For a specific structure, see the Chinese patent application No. CN201710624991.4 (publication No. CN 108061375A) of the applicant's prior application, namely, a dual-purpose furnace working system.
However, with the above-mentioned scheme, in the heating mode, the external circulation is a unidirectional circulation, and the heating pipe is divided into a front end and a rear end, the front end room temperature is higher, and the rear end room temperature is lower, even not hot.
Disclosure of Invention
The utility model aims to solve the technical problem of providing a dual-purpose furnace capable of uniformly heating each room in a heating mode aiming at the current state of the art.
The technical scheme adopted for solving the technical problems is as follows: a dual-purpose stove comprises
The combustion heat exchange device is provided with a heat exchange channel;
the heat exchanger is internally provided with a hot water channel and a cold water channel which exchange heat with each other;
the heat exchange pipeline is a circulating pipeline and comprises a first heat exchange section and a second heat exchange section which are connected in sequence, at least part of the first heat exchange section passes through a heat exchange channel of the combustion heat exchange device, and at least part of the second heat exchange section passes through a hot water channel of the heat exchanger;
the heating water inlet pipe and the heating water outlet pipe are respectively connected to two ends of the first heat exchange section and are respectively connected with two ends of an external heating pipeline;
the life water inlet pipe and the life water outlet pipe are respectively connected to two ends of the cold water channel of the heat exchanger; and
the conveying pump is arranged on the first heat exchange section;
valves are arranged on the second heat exchange section and the heating water outlet pipe, so that the dual-purpose furnace has at least two states:
in the first state, the second heat exchange section is communicated, and the heating water outlet pipe is disconnected;
in a second state, the second heat exchange section is disconnected, and the heating water outlet pipe is communicated;
the method is characterized in that: the first heat exchange section comprises a first pipe part, a second pipe part and a third pipe part which are connected in sequence, and the delivery pump is arranged on the second pipe part and can deliver water flow from the inlet end of the second pipe part to the outlet end of the second pipe part;
and also include
The reversing valve is internally provided with two mutually independent communication channels;
the dual-purpose furnace also has at least a third state:
in the second state, the inlet end and the outlet end of the second pipe part are respectively communicated with the first pipe part and the second pipe part through two communication channels;
in a third state, the second heat exchange section is disconnected, and the heating water outlet pipe is communicated; the inlet end and the outlet end of the second pipe part are respectively communicated with the second pipe part and the first pipe part through two communication channels.
In order to facilitate the arrangement of valves on the second heat exchange section and the heating water outlet pipe, the second heat exchange section and the heating water outlet pipe share the same three-way valve, the three-way valve is provided with a water inlet end, a first water outlet end and a second water outlet end, the water inlet end of the three-way valve is communicated with the first heat exchange section, the first water outlet end of the three-way valve is communicated with the second heat exchange section, and the second water outlet end of the three-way valve is communicated with the heating water outlet pipe.
In order to facilitate the discharge of water flow in the heating pipeline, the heating water inlet pipe or the heating water outlet pipe is connected with a drainage pipeline, and the drainage pipeline is provided with a drainage valve for controlling the on-off of the drainage pipeline.
In order to facilitate the water flow supplement in the heating pipeline, a water supplementing pipeline is connected between the life water inlet pipe and the heating water inlet pipe or the heating water outlet pipe, and a water supplementing valve for controlling the on-off of the water supplementing pipeline is arranged on the water supplementing pipeline.
In order to supply heat to the heat exchanging channel, the combustion heat exchanging device is also provided with a burner for supplying heat to the heat exchanging channel, and the burner is connected with a gas pipeline.
In order to conveniently adjust the combustion intensity, the gas pipeline is provided with a proportional valve for adjusting the gas quantity.
In order to facilitate the full combustion of the fuel gas, the combustion heat exchange device is also provided with a fan for supplementing air to the burner and exhausting the flue gas.
In order to facilitate the accommodation and the replenishment of the circulating water expansion and contraction amount, the heat exchange pipeline is connected with an expansion water tank for accommodating and replenishing the circulating water expansion and contraction amount in the circulating loop.
Compared with the prior art, the utility model has the advantages that: under the heating mode, the dual-purpose furnace is switched between the second state and the third state through the reversing valve, so that the clockwise circulation loop and the anticlockwise circulation loop are alternately performed, which is equivalent to the mutual exchange of the heating water inlet pipe and the heating water outlet pipe, so that the heat dissipation of the external heating pipeline is uniform, and each room is uniformly heated.
Drawings
FIG. 1 is a schematic view of a conventional dual-purpose furnace in the prior art;
FIG. 2 is a schematic view of an embodiment of the dual-purpose stove of the present utility model in a first state (arrows indicate water flow direction);
FIG. 3 is a schematic view of the dual-purpose stove of FIG. 2 after switching to a second state (arrows indicate water flow direction);
fig. 4 is a schematic view of the structure of the dual-purpose stove of fig. 3 after switching to the third state (arrows indicate water flow direction).
Detailed Description
The utility model is described in further detail below with reference to the embodiments of the drawings.
As shown in fig. 2 to 4, a preferred embodiment of the dual-purpose furnace of the present utility model is shown. The dual-purpose furnace comprises a combustion heat exchange device 1, a heat exchanger 2, a heat exchange pipeline 3, a heating water inlet pipe 4a, a heating water outlet pipe 4b, a living water inlet pipe 5a, a living water outlet pipe 5b, a delivery pump 6, a three-way valve 7 and a reversing valve 8.
The combustion heat exchange device 1 comprises a heat exchange channel 11, a combustor 12 for supplying heat to the heat exchange channel 11 and a fan 13 for supplementing air to the combustor 12 and exhausting flue gas. Specifically, the burner 12 is connected to a gas pipe 121, and a proportional valve 1211 for adjusting the amount of gas is installed on the gas pipe 121.
The heat exchanger 2 has a hot water passage 21 and a cold water passage 22 which exchange heat with each other.
The heat exchange pipeline 3 is a circulating pipeline and comprises a first heat exchange section 31 and a second heat exchange section 32 which are connected in sequence. Specifically, the first heat exchange section 31 includes a first pipe portion 311, a second pipe portion 312, and a third pipe portion 313 that are sequentially connected, the first pipe portion 311 is connected with an expansion tank 33 for accommodating and supplementing the expansion and contraction amount of the circulating water in the circulating loop, a portion of the third pipe portion 313 passes through the heat exchange channel 11 of the combustion heat exchange device 1, and a portion of the second heat exchange section 32 passes through the hot water channel 21 of the heat exchanger 2.
The heating water inlet pipe 4a and the heating water outlet pipe 4b are respectively connected with two ends of an external heating pipeline. Specifically, the heating water inlet pipe 4a is communicated with the first pipe portion 311, and the heating water outlet pipe 4b is communicated with the third pipe portion 313; a drain pipe 41 is connected to the heating water inlet pipe 4a, and a drain valve 411 for controlling the on/off of the drain pipe 41 is installed on the drain pipe 41.
The life water inlet pipe 5a and the life water outlet pipe 5b are respectively connected at two ends of the cold water channel 22 of the heat exchanger 2. Specifically, a water supplementing pipe 51 is connected between the living water inlet pipe 5a and the heating water inlet pipe 4a, and a water supplementing valve 511 for controlling the on-off of the water supplementing pipe 51 is installed on the water supplementing pipe 51.
The delivery pump 6 is mounted on the second pipe portion 312 and is capable of delivering a flow of water from an inlet end of the second pipe portion 312 to an outlet end of the second pipe portion 312.
The three-way valve 7 is provided with a water inlet end, a first water outlet end and a second water outlet end, the water inlet end of the three-way valve 7 is communicated with the outlet end of the third pipe portion 313, the first water outlet end of the three-way valve 7 is communicated with the inlet end of the second heat exchange section 32, the second water outlet end of the three-way valve 7 is communicated with the heating water outlet pipe 4b, and the on-off of the second heat exchange section 32 and the heating water outlet pipe 4b can be controlled by adjusting the three-way valve 7.
The reversing valve 8 has two mutually independent communication passages 81 inside.
By adjusting the three-way valve 7 and the reversing valve 8, the dual-purpose furnace has at least three states:
in the first state, as shown in fig. 2, the second heat exchange section 32 is connected, and the heating water outlet pipe 4b is disconnected, so that the heat exchange pipeline 3 forms a circulation loop independently, namely an internal circulation in the background art;
in the second state, as shown in fig. 3, the second heat exchange section 32 is disconnected, the heating water outlet pipe 4b is connected, and the inlet end and the outlet end of the second pipe portion 312 are respectively connected with the first pipe portion 311 and the second pipe portion 312 through two communication channels 81, so that the heating water inlet pipe 4a, the first heat exchange section 31, the heating water outlet pipe 4b and the external heating pipeline together form a clockwise circulation loop, namely an external circulation in the background art;
in the third state, as shown in fig. 4, the second heat exchange section 32 is disconnected, the heating water outlet pipe 4b is connected, and the inlet end and the outlet end of the second pipe portion 312 are respectively connected with the second pipe portion 312 and the first pipe portion 311 through two communication channels 81, so that the heating water inlet pipe 4a, the first heat exchange section 31, the heating water outlet pipe 4b and the external heating pipeline together form a counterclockwise circulation loop, namely an external circulation in the background art.
The working principle of this embodiment is as follows:
(1) In a domestic hot water mode, the dual-purpose furnace is switched to a first state shown in fig. 2 through the three-way valve 7, the second heat exchange section 32 is communicated, the heating water outlet pipe 4b is disconnected, so that the heat exchange pipeline 3 forms a circulation loop independently, under the action of the conveying pump 6, water in the first heat exchange section 31 of the heat exchange pipeline 3 enters the second heat exchange section 32 after being heated by the combustion heat exchange device 1, hot water in the second heat exchange section 32 exchanges heat with cold water introduced by the domestic water inlet pipe 5a when passing through the heat exchanger 2, the cold water is heated to be hot water and then is supplied to a user through the domestic water outlet pipe 5b, and the water in the second heat exchange section 32 finally returns to the first heat exchange section 31 to supplement heat, so that continuous supply of domestic hot water is realized;
(2) In the heating mode, the dual-purpose furnace is switched to a second state shown in fig. 3 through the three-way valve 7, the second heat exchange section 32 is disconnected, the heating water outlet pipe 4b is communicated, so that the heating water inlet pipe 4a, the first heat exchange section 31, the heating water outlet pipe 4b and an external heating pipeline form a circulation loop together, under the action of the conveying pump 6, water in the first heat exchange section 31 of the heat exchange pipeline 3 is heated by the combustion heat exchange device 1 and then is discharged to the heating water outlet pipe 4b, the hot water radiates heat through each room through the external heating pipeline, and finally returns to the first heat exchange section 31 through the heating water inlet pipe 4a to supplement heat, so that continuous heating of each room is realized;
it should be noted that, in this mode, the dual-purpose stove can be switched between the second state and the third state by the reversing valve 8, so that the clockwise circulation loop and the anticlockwise circulation loop are alternately performed, which is equivalent to that the heating water inlet pipe 4a and the heating water outlet pipe 4b are mutually exchanged, so that the heat dissipation of the external heating pipeline is uniform, and therefore, each room is uniformly heated, and the phenomenon that a certain room is unheated is avoided.
Claims (8)
1. A dual-purpose stove comprises
A combustion heat exchange device (1) having a heat exchange channel (11);
a heat exchanger (2) having a hot water passage (21) and a cold water passage (22) for exchanging heat with each other inside;
the heat exchange pipeline (3) is a circulating pipeline and comprises a first heat exchange section (31) and a second heat exchange section (32) which are connected in sequence, wherein at least part of the first heat exchange section (31) passes through a heat exchange channel (11) of the combustion heat exchange device (1), and at least part of the second heat exchange section (32) passes through a hot water channel (21) of the heat exchanger (2);
a heating water inlet pipe (4 a) and a heating water outlet pipe (4 b) are respectively connected with two ends of the first heat exchange section (31) and are respectively connected with two ends of an external heating pipeline;
a life water inlet pipe (5 a) and a life water outlet pipe (5 b) are respectively connected to two ends of a cold water channel (22) of the heat exchanger (2); and
a transfer pump (6) mounted on said first heat exchange section (31);
valves are arranged on the second heat exchange section (32) and the heating water outlet pipe (4 b) so that the dual-purpose furnace has at least two states:
in the first state, the second heat exchange section (32) is communicated, and the heating water outlet pipe (4 b) is disconnected;
in a second state, the second heat exchange section (32) is disconnected, and the heating water outlet pipe (4 b) is communicated;
the method is characterized in that: the first heat exchange section (31) comprises a first pipe part (311), a second pipe part (312) and a third pipe part (313) which are connected in sequence, and the conveying pump (6) is arranged on the second pipe part (312) and can convey water flow from the inlet end of the second pipe part (312) to the outlet end of the second pipe part (312);
and also include
The reversing valve (8) is internally provided with two mutually independent communication channels (81);
the dual-purpose furnace also has at least a third state:
in the second state, the inlet end and the outlet end of the second pipe part (312) are respectively communicated with the first pipe part (311) and the second pipe part (312) through two communication channels (81);
in a third state, the second heat exchange section (32) is disconnected, and the heating water outlet pipe (4 b) is communicated; the inlet end and the outlet end of the second pipe part (312) are respectively communicated with the second pipe part (312) and the first pipe part (311) through two communication channels (81).
2. The dual-purpose furnace of claim 1, wherein: the second heat exchange section (32) and the heating water outlet pipe (4 b) share the same three-way valve (7), the three-way valve (7) is provided with a water inlet end, a first water outlet end and a second water outlet end, the water inlet end of the three-way valve (7) is communicated with the first heat exchange section (31), the first water outlet end of the three-way valve (7) is communicated with the second heat exchange section (32), and the second water outlet end of the three-way valve (7) is communicated with the heating water outlet pipe (4 b).
3. The dual-purpose furnace of claim 1, wherein: the heating water inlet pipe (4 a) or the heating water outlet pipe (4 b) is connected with a water draining pipeline (41), and the water draining pipeline (41) is provided with a water draining valve (411) for controlling the on-off of the water draining pipeline (41).
4. The dual-purpose furnace of claim 1, wherein: a water supplementing pipeline (51) is connected between the life water inlet pipe (5 a) and the heating water inlet pipe (4 a) or the heating water outlet pipe (4 b), and a water supplementing valve (511) for controlling the on-off of the water supplementing pipeline (51) is arranged on the water supplementing pipeline (51).
5. The dual-purpose furnace of claim 1, wherein: the combustion heat exchange device (1) is also provided with a burner (12) for supplying heat to the heat exchange channel (11), and the burner (12) is connected with a gas pipeline (121).
6. The dual-purpose furnace according to claim 5, wherein: the gas pipeline (121) is provided with a proportional valve (1211) for adjusting the gas quantity.
7. The dual-purpose furnace according to claim 5, wherein: the combustion heat exchange device (1) is also provided with a fan (13) for supplementing air to the burner (12) and exhausting flue gas.
8. The dual-purpose furnace according to any one of claims 1 to 7, characterized in that: the heat exchange pipeline (3) is connected with an expansion water tank (33) for accommodating and supplementing the expansion and contraction amount of the circulating water in the circulating loop.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320305907.3U CN219693423U (en) | 2023-02-13 | 2023-02-13 | Dual-purpose stove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320305907.3U CN219693423U (en) | 2023-02-13 | 2023-02-13 | Dual-purpose stove |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219693423U true CN219693423U (en) | 2023-09-15 |
Family
ID=87943982
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320305907.3U Active CN219693423U (en) | 2023-02-13 | 2023-02-13 | Dual-purpose stove |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219693423U (en) |
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2023
- 2023-02-13 CN CN202320305907.3U patent/CN219693423U/en active Active
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