CN218154842U - Condensation furnace main heat exchanger with temperature protection function and gas heating water heater - Google Patents
Condensation furnace main heat exchanger with temperature protection function and gas heating water heater Download PDFInfo
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- CN218154842U CN218154842U CN202222053094.1U CN202222053094U CN218154842U CN 218154842 U CN218154842 U CN 218154842U CN 202222053094 U CN202222053094 U CN 202222053094U CN 218154842 U CN218154842 U CN 218154842U
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- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
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Abstract
The utility model discloses a condensing furnace main heat exchanger with temperature protection function and a gas heating water heater, wherein the condensing furnace main heat exchanger comprises a heat exchanger main body, a flue gas temperature sensor and a temperature fuse, and the heat exchanger main body is provided with a smoke collecting seat; the smoke temperature sensor is used for detecting the temperature in the smoke collecting seat; the temperature fuse is used for fusing when the temperature in the smoke collecting seat exceeds the fusing temperature of the temperature fuse. The main heat exchanger of the condensing furnace collects the temperature of flue gas/cold air in the main body of the heat exchanger through a flue gas temperature sensor; when the temperature exceeds the high-temperature set threshold or is lower than the low-temperature set threshold, stopping the furnace body from running; restarting when the temperature is normal; when the high-temperature flue gas surpasses the temperature that the plastics material bore widely, the temperature fuse takes place the fusing this moment, and the user can't reset and restart, needs whether professional detects the stove inside and damages, just can restart to can further improve the safety in utilization of hot-water furnace.
Description
Technical Field
The utility model relates to a main heat exchanger technical field, concretely relates to condensation furnace main heat exchanger and gas heating water heater with temperature protect function.
Background
The conventional wall-mounted boiler cannot utilize latent heat in water vapor due to higher exhaust gas temperature, and sensible heat is taken away by the higher exhaust gas temperature, so that the heat efficiency is reduced. The condensing type gas wall-mounted furnace (condensing furnace) condenses the water vapor in the flue gas by reducing the exhaust gas temperature, almost all sensible heat and partial latent heat of the water vapor in the flue gas are fully utilized, the energy-saving effect is obvious, the exhaust gas temperature is about 40-80 ℃, the flue gas contains a large amount of water vapor, the exhaust gas is exhausted through the inner pipe in the balanced chimney, the water vapor in the flue gas can generate condensed water in the inner pipe, and the condensed water is water with weak acidity, so in order to improve the corrosion resistance, reduce the heat loss and reduce the product cost price, in the prior art in the market at present, the exhaust gas channel (the inner pipe comprising the main heat exchanger, the smoke collector and the chimney) of the condensing furnace is made of plastic materials. The outer pipe of the chimney draws in the air required for the combustion of the furnace.
When the condensing furnace is in operation, because the gas composition changes or the furnace appears unusually, the temperature of exhaust gas may exceed the temperature that bears of the plastic material that the exhaust gas channel used, causes safety risks such as condensing furnace damage or flue gas leakage. Or, in extremely cold areas, cold air at low temperature is blown into the interior of the furnace through the chimney, which can cause freezing damage to the internal components of the condensing furnace or water freezing damage to the coil of the main heat exchanger. In the prior art, a temperature sensor is generally arranged at the top of a main heat exchanger in a condensing furnace, a smoke temperature detection signal is transmitted to a main control board of the condensing furnace, when the temperature exceeds a set value of the sensor, the signal is transmitted to the main control board, and the main control board closes the furnace after receiving the signal, so that the smoke temperature is prevented from being too high, and the smoke exhaust system is prevented from being damaged by plastics such as a plastic smoke pipe and a plastic connecting pipe.
The above conventional techniques have the following problems: when the temperature of the flue gas is too high instantaneously, namely the high-temperature flue gas greatly exceeds the temperature born by the plastic material, at the moment, the temperature of the high-temperature flue gas damages the plastic material of the smoke exhaust channel, although the temperature sensor transmits a signal to the main control board of the condensing furnace, the furnace is turned off, but after the temperature sensor is reset, the furnace can be restarted.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, one of the purposes of the utility model is to provide a main heat exchanger of a condensing furnace with temperature protection function, solve the traditional problems, and further improve the use safety.
The second purpose of the utility model is to provide a gas heating water heater which adopts the condensation furnace main heat exchanger with temperature protection function.
The utility model discloses one of the purpose adopts following technical scheme to realize:
a main heat exchanger of a condensing furnace with a temperature protection function comprises a heat exchanger main body, a flue gas temperature sensor and a temperature fuse, wherein the flue gas temperature sensor and the temperature fuse are installed on the heat exchanger main body; the smoke temperature sensor is arranged on the first mounting hole and used for detecting the temperature in the smoke collecting seat; the temperature fuse is installed on the second mounting hole and is used for fusing when the temperature in the smoke collection seat exceeds the fusing temperature of the temperature fuse.
Preferably, the smoke collecting seat is enclosed by a lower chimney device and an upper chimney device, the lower chimney device is divided into a smoke collecting end and a smoke discharging end, the smoke collecting end is communicated with the heat exchanger main body, and a gap is formed between the smoke discharging end and the heat exchanger main body; and the upper chimney device is provided with a mounting port for connecting a balanced chimney, and the mounting port is communicated with the smoke discharge end.
Preferably, the first mounting hole and the second mounting hole are both located at one end of the smoke discharge end far away from the smoke collection end.
Preferably, the first mounting hole is located in the middle of the smoke discharge end, and the second mounting hole is located at one side of the first mounting hole.
Preferably, the second mounting hole is located on the right side of the first mounting hole.
Preferably, the first mounting hole is provided with a fixed cavity, a guide cavity and a sealing cavity which are arranged from inside to outside, and the fixed cavity, the guide cavity and the sealing cavity are connected to form a stepped groove; the inner diameter of the fixed cavity is smaller than that of the guide cavity, and the inner diameter of the guide cavity is smaller than that of the sealing cavity.
Preferably, the flue gas temperature sensor comprises a sensor body and a sensor sealing ring, the sensor body is used for being inserted into the stepped groove, the probe part of the sensor body extends into the smoke collecting seat, the sensor sealing ring is used for being sleeved on the sensor body, and the outer diameter of the sensor sealing ring is matched with the inner diameter of the sealing cavity.
Preferably, the relative both sides of sensor body are equipped with joint portion, fixed chamber be equipped with be used for with the joint groove of joint portion joint.
Preferably, the structure of the second mounting hole is the same as that of the first mounting hole, and the structure of the thermal fuse is matched with that of the second mounting hole.
The utility model discloses the second adopts following technical scheme to realize:
a gas heating water heater comprises the condensation furnace main heat exchanger with the temperature protection function and a main control board, wherein a flue gas temperature sensor and a temperature fuse of the condensation furnace main heat exchanger are electrically connected with the main control board;
when the temperature fed back by the flue gas temperature sensor exceeds the high-temperature threshold value of the main control board, the water heater stops running, and the water heater can be restarted after reset; when the temperature fed back by the flue gas temperature sensor is lower than the low-temperature threshold value of the main control panel, starting anti-freezing protection;
and when the temperature fuse and the main control board are in an open circuit state, stopping the operation of the water heater and prohibiting the resetting and restarting.
Compared with the prior art, the beneficial effects of the utility model reside in that:
the main heat exchanger of the condensing furnace is provided with the flue gas temperature sensor and the temperature fuse on the main body of the heat exchanger, and the flue gas temperature sensor acquires the temperature of flue gas/cold air in the main body of the heat exchanger; when the temperature exceeds the high-temperature set threshold or is lower than the low-temperature set threshold, stopping the furnace body from running; restarting when the temperature is normal; when the high-temperature flue gas has exceeded the temperature that the plastics material bore widely, the temperature fuse takes place the fusing this moment, and the stove is closed and breaks down, and the user can't reset and restart, needs whether professional detects the stove inside and damages, just can restart to can further improve the safety in utilization of hot-water furnace.
Drawings
FIG. 1 is a schematic structural view of a main heat exchanger of a condensing furnace of the present invention installed on a gas heating water heater;
FIG. 2 is a front view of the condensing furnace primary heat exchanger shown in FIG. 1;
FIG. 3 is a partially exploded view of the condensing furnace primary heat exchanger shown in FIG. 2, wherein the flue gas temperature sensor and the temperature fuse are not shown;
FIG. 4 is an exploded view of the flue gas temperature sensor of FIG. 2 with the first mounting hole shown in front;
FIG. 5 is an exploded view of the flue gas temperature sensor of FIG. 2 with the first mounting hole shown in cross-section.
In the figure: 100. a condensing furnace main heat exchanger; 10. a heat exchanger main body; 11. a first mounting hole; 110. a fixed cavity; 111. a guide cavity; 112. sealing the cavity; 12. a second mounting hole; 20. a flue gas temperature sensor; 21. a sensor body; 210. a clamping part; 22. a sensor seal ring;
30. a temperature fuse; 40. a cigarette collecting seat; 41. a chimney setting device; 410. a smoke collection end of the smoke; 411. a flue gas discharge end; 42. an upper chimney device; 420. an installation port;
200. gas heating water heater.
Detailed Description
In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present 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 be able to make similar modifications 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 "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the description of the present invention, it will be understood that 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. In contrast, when an element is referred to as being "directly connected" to another element, there are no intervening elements present.
Referring to fig. 1 to 5, a main heat exchanger 100 of a condensing furnace with temperature protection function according to a preferred embodiment of the present invention is installed on a gas heating water heater 200, and similarly, may also be installed in a water heater or other gas appliances; specifically, the main heat exchanger 100 of the condensing furnace comprises a heat exchanger main body 10, a flue gas temperature sensor 20 and a temperature fuse 30 which are arranged on the heat exchanger main body 10, wherein the upper end of the heat exchanger main body 10 is provided with a smoke collecting seat 40 with a first mounting hole 11 and a second mounting hole 12; the smoke temperature sensor 20 is arranged on the first mounting hole 11 and used for detecting the temperature in the smoke collecting seat 40; the thermal fuse 30 is mounted on the second mounting hole 12 for fusing when the temperature inside the smoke trap 40 exceeds the fusing temperature of the thermal fuse 30.
The main heat exchanger 100 of the condensing furnace is provided with a flue gas temperature sensor 20 and a temperature fuse 30 on a heat exchanger main body 10, and the flue gas temperature sensor 20 collects the temperature of flue gas/cold air in the heat exchanger main body 10; when the temperature exceeds the high-temperature set threshold or is lower than the low-temperature set threshold, stopping the furnace body from running; restarting when the temperature is normal; when the high-temperature flue gas has surpassed the temperature that plastics material bore widely, temperature fuse 30 took place the fusing this moment, and the stove is closed and the trouble, and the user can't reset and restart, needs whether professional to detect the inside damage of stove, just can restart to can further improve the safety in utilization of water heater.
In one embodiment, as shown in fig. 3, the smoke collecting seat 40 is enclosed by a lower chimney 41 and an upper chimney 42 to form a smoke collecting cavity, and high-temperature smoke generated by combustion in the burner is collected by the smoke collecting cavity and then discharged; the lower chimney device 41 is divided into a smoke collecting end 410 and a smoke discharging end 411, the smoke collecting end 410 is communicated with the heat exchanger main body 10, and a gap is formed between the smoke discharging end 411 and the heat exchanger main body 10; the upper chimney device 42 is provided with a mounting port 420 for connecting a balanced chimney, and the mounting port 420 is communicated with the smoke discharge end 411. It can be understood that the high temperature flue gas generated by the burner is collected in the flue gas collecting end 410 after heat exchange by the main heat exchanger body 10, then flows to the flue gas discharging end 411 and the mounting port 420 in sequence, and finally is discharged by the balanced chimney.
In order to accurately collect the temperature of the flue gas, the first mounting hole 11 and the second mounting hole 12 are both located at one end of the flue gas discharge end 411 away from the flue gas collecting end 410, that is, at a position close to the mounting port 420 but away from the flue gas collecting end 410 along the direction of the flow direction of the flue gas. Wherein, the first mounting hole 11 is located in the middle of the smoke discharge end 411, and the second mounting hole 12 is located at one side of the first mounting hole 11, so as to facilitate the installation of the smoke temperature sensor 20 and the temperature fuse 30. Preferably, the second mounting hole 12 is located at the right side of the first mounting hole 11, further improving the temperature collection.
In one embodiment, the first mounting hole 11 is provided with a fixing cavity 110, a guide cavity 111 and a sealing cavity 112 which are arranged from inside to outside, and the fixing cavity 110, the guide cavity 111 and the sealing cavity 112 are connected to form a stepped groove; the inner diameter of the fixing chamber 110 is smaller than that of the guide chamber 111, and the inner diameter of the guide chamber 111 is smaller than that of the sealing chamber 112, so as to facilitate the installation and fixing of the flue gas temperature sensor 20.
Optionally, the flue gas temperature sensor 20 includes a sensor body 21 and a sensor sealing ring 22, the sensor body 21 is configured to be inserted into the stepped groove, the probe portion of the sensor body 21 extends into the smoke collecting seat 40, the sensor sealing ring 22 is configured to be sleeved on the sensor body 21, and an outer diameter of the sensor sealing ring 22 is adapted to an inner diameter of the sealing cavity 112. Wherein, the relative both sides of sensor body 21 are equipped with joint portion 210, and fixed chamber 110 is equipped with the joint groove that is used for with joint portion 210 joint for sealing performance is better and the installation nature is convenient.
In another embodiment, the structure of the second mounting hole 12 is the same as that of the first mounting hole 11, the structure of the temperature fuse 30 is matched with that of the second mounting hole 12, and understandably, the structure of the temperature fuse 30 is the same as that of the flue gas temperature sensor 20, and the internal functions are different.
In other embodiments, please refer to fig. 1 again, the present invention further includes a gas-fired water heater 200, which includes the main heat exchanger 100 of the condensing furnace with temperature protection function and the main control board of the above embodiments, wherein the flue gas temperature sensor 20 and the temperature fuse 30 of the main heat exchanger 100 of the condensing furnace are electrically connected to the main control board; when the temperature fed back by the flue gas temperature sensor 20 exceeds the high-temperature threshold value of the main control board, the water heater stops running, and the water heater can be restarted after reset; when the temperature fed back by the flue gas temperature sensor 20 is lower than the low-temperature threshold value of the main control board, starting anti-freezing protection; when the temperature fuse 30 and the main control board are in an open circuit state, the operation of the water heater is stopped and the reset and restart are prohibited, thereby further improving the safety of the gas heating water heater 200.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (10)
1. A main heat exchanger of a condensing furnace with a temperature protection function is characterized by comprising a heat exchanger main body, a flue gas temperature sensor and a temperature fuse, wherein the flue gas temperature sensor and the temperature fuse are arranged on the heat exchanger main body; the smoke temperature sensor is arranged on the first mounting hole and used for detecting the temperature in the smoke collecting seat; the temperature fuse is installed on the second mounting hole and is used for fusing when the temperature in the smoke collection seat exceeds the fusing temperature of the temperature fuse.
2. A condensing furnace main heat exchanger with temperature protection function according to claim 1, characterized in that the smoke collecting seat is enclosed by a lower chimney device and an upper chimney device, the lower chimney device is divided into a smoke collecting end and a smoke discharging end, the smoke collecting end is communicated with the heat exchanger main body, and a gap is arranged between the smoke discharging end and the heat exchanger main body; and the upper chimney device is provided with a mounting port for connecting a balanced chimney, and the mounting port is communicated with the smoke discharge end.
3. The condensing furnace main heat exchanger with the temperature protection function according to claim 2, wherein the first mounting hole and the second mounting hole are both located at one end of the smoke discharge end far away from the smoke collection end.
4. The condensing furnace main heat exchanger with temperature protection function according to claim 3, wherein the first mounting hole is located in the middle of the flue gas discharge end, and the second mounting hole is located at one side of the first mounting hole.
5. A condensing furnace main heat exchanger with temperature protection according to claim 4, characterized in that the second mounting hole is located on the right side of the first mounting hole.
6. A condensing furnace main heat exchanger with a temperature protection function according to claim 1, characterized in that the first mounting hole is provided with a fixed cavity, a guide cavity and a sealing cavity which are arranged from inside to outside, and the fixed cavity, the guide cavity and the sealing cavity are connected to form a stepped groove; the inner diameter of the fixed cavity is smaller than that of the guide cavity, and the inner diameter of the guide cavity is smaller than that of the sealing cavity.
7. The condensing furnace main heat exchanger with the temperature protection function according to claim 6, wherein the flue gas temperature sensor comprises a sensor body and a sensor sealing ring, the sensor body is used for being inserted into the stepped groove, a probe part of the sensor body extends into the smoke collecting seat, the sensor sealing ring is used for being sleeved on the sensor body, and the outer diameter of the sensor sealing ring is matched with the inner diameter of the sealing cavity.
8. The main heat exchanger with the temperature protection function for the condensing furnace as claimed in claim 7, wherein the sensor body is provided with clamping portions at opposite sides thereof, and the fixing cavity is provided with clamping grooves for clamping with the clamping portions.
9. A condensing furnace main heat exchanger with temperature protection function according to claim 6, characterized in that the structure of the second mounting hole is the same as that of the first mounting hole, and the structure of the temperature fuse is matched with that of the second mounting hole.
10. A gas heating water heater, characterized in that, it comprises a main heat exchanger of a condensing furnace with temperature protection function and a main control board according to any one of claims 1 to 9, wherein a flue gas temperature sensor and a temperature fuse of the main heat exchanger of the condensing furnace are electrically connected with the main control board;
when the temperature fed back by the flue gas temperature sensor exceeds the high-temperature threshold value of the main control panel, the water heater stops running, and the water heater can be restarted after reset; when the temperature fed back by the flue gas temperature sensor is lower than the low-temperature threshold value of the main control panel, starting anti-freezing protection;
and when the temperature fuse and the main control board are in an open circuit state, stopping the operation of the water heater and prohibiting the resetting and restarting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222053094.1U CN218154842U (en) | 2022-08-05 | 2022-08-05 | Condensation furnace main heat exchanger with temperature protection function and gas heating water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222053094.1U CN218154842U (en) | 2022-08-05 | 2022-08-05 | Condensation furnace main heat exchanger with temperature protection function and gas heating water heater |
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| Publication Number | Publication Date |
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| CN218154842U true CN218154842U (en) | 2022-12-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222053094.1U Active CN218154842U (en) | 2022-08-05 | 2022-08-05 | Condensation furnace main heat exchanger with temperature protection function and gas heating water heater |
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|---|---|
| CN (1) | CN218154842U (en) |
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2022
- 2022-08-05 CN CN202222053094.1U patent/CN218154842U/en active Active
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