CN216592253U - Modular gas volume water heater - Google Patents
Modular gas volume water heater Download PDFInfo
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- CN216592253U CN216592253U CN202122978998.0U CN202122978998U CN216592253U CN 216592253 U CN216592253 U CN 216592253U CN 202122978998 U CN202122978998 U CN 202122978998U CN 216592253 U CN216592253 U CN 216592253U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- 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 modular gas volume water heater, which comprises a heat preservation water storage tank, wherein a water storage cavity is arranged inside the heat preservation water storage tank, and a heat preservation material and a protective shell are wrapped outside the heat preservation water storage tank; the gas heating module is used for heating water and is provided with a circulating water inlet, a circulating water outlet, a supply water inlet and a supply water outlet; the circulation water inlet with the circulation delivery port respectively with the water storage chamber intercommunication is in order to constitute circulating water heating system, supply water inlet and outside cold water pipe intercommunication, the supply delivery port with the water storage chamber intercommunication to constitute the moisturizing passageway. The gas heating module in the modular gas volume hot water furnace can work stably for a long time without scaling, the heat efficiency can be improved to more than 106%, the energy-saving effect is obvious, and the response speed of supplying hot water is greatly improved.
Description
Technical Field
The utility model relates to the technical field of gas boilers, in particular to a modular gas volume water heater.
Background
The existing modular gas volume water heater has two heating modes, one is that a burner is arranged at the bottom of a heat-preservation water tank, a smoke tube passes through the water tank, smoke gas directly exchanges heat with water in the water tank from the outer wall of the smoke tube to the top through the outer wall of the smoke tube, and then the smoke gas is discharged from the top; the other is that the burner is arranged at the upper part of the heat preservation water tank, the smoke tube passes through the water tank, the smoke gas directly exchanges heat with water in the water tank from top to bottom through the outer wall of the smoke tube, and then the smoke gas is discharged from the bottom. The two modes both belong to the heating mode of the traditional hot water boiler, and the mode has the following defects: 1. easy scale deposit, almost all positive displacement water heaters for supplying hot water, the running water that does not select for use is all, the running water contains calcium magnesium particle, the harder the quality of water is the more the content of calcium magnesium particle, when the running water is heated at high temperature, the calcium magnesium particle in aquatic will separate out the sediment, adsorb on the metal surface, form the incrustation scale, the water of relative stillness is the scale deposit more easily, the coefficient of heat conductivity of incrustation scale is very low, only 2 ~ 5% of metal, therefore the hot water heater once scales deposit, the thermal efficiency will reduce gradually, thickness along with the scale deposit increases, the heat transfer just is more difficult, until damaging the boiler. The existing solution mainly adopts an enamel inner container which is not easy to scale and a magnesium rod is added periodically to soften water quality, the enamel on the metal surface has a certain heat resistance effect, the heat exchange efficiency is reduced, the magnesium rod is relatively troublesome to add and is difficult to maintain, even if the means is adopted, the scaling can be delayed, and the scaling problem cannot be solved fundamentally; 2. the heat efficiency is low, the two existing modular gas volume water heaters adopt the direct contact heat exchange of water in a smoke tube and a water tank, high-temperature smoke is discharged out of the furnace without condensation waste heat recovery, the heat efficiency is less than 90 percent, and only secondary energy efficiency can be achieved; 3. the water in the water storage tank is heated to a set temperature and then is supplied with hot water outwards to ensure the outlet water temperature by directly heating the water storage tank, and the water heater has long heating time, low efficiency and low response speed of hot water supply.
SUMMERY OF THE UTILITY MODEL
The present invention is directed to solving the problems of the prior art. To this end, the utility model proposes a modular gas-fired volumetric water heater comprising: the heat preservation water storage tank is internally provided with a water storage cavity, and the outside of the heat preservation water storage tank is wrapped with a heat preservation material and a protective shell; the gas heating module is used for heating water and is provided with a circulating water inlet, a circulating water outlet, a supply water inlet and a supply water outlet; the circulating water inlet with the circulating water outlet respectively with the water storage chamber intercommunication is in order to constitute circulating water heating system, supply water inlet and outside cold water pipe intercommunication, the supply delivery port with the water storage chamber intercommunication is in order to constitute the moisturizing passageway.
The modular gas volume water heater of the above embodiment has the advantages that: 1. the gas heating module is separated from the water storage tank, and a circulating heating mode is adopted, so that water in a high-temperature heating state flows at a high speed, and scaling cannot be precipitated even if calcium and magnesium particles in the water are separated out by heat, and the gas heating module is ensured to work stably for a long time without scaling; 2. The main heat exchange of the gas heating module adopts an all-copper fin high-efficiency heat exchanger, the heat exchange efficiency is 5-7 times higher than that of a steel material smoke tube, the waste heat of the smoke is recovered by adopting a double condensation technology of circulating water condensation and supply inlet water condensation, the smoke exhaust temperature can be reduced to below 40 ℃, the heat efficiency can be improved to more than 106%, and the energy-saving effect is obvious; 3. the circulating heating process is to take water from the low-temperature area of the water storage tank and deliver the water to the high-temperature area of the hot water supply outlet after the water is rapidly heated by the gas heating module, so that hot water can be rapidly discharged without completely heating the water in the water storage tank, and the response speed of supplying the hot water is greatly improved.
According to some embodiments of the utility model, the gas heating module comprises a burner for heating the primary heat exchanger, a primary heat exchanger, and a condenser assembly for absorbing residual heat of flue gas.
According to some embodiments of the utility model, the condenser assembly has a housing, the housing is provided with a flue gas discharge port and a flue gas inlet port, the housing is internally provided with a first cavity and a second cavity which are communicated, the first cavity is internally provided with a first condensing heat exchanger, and the second cavity is internally provided with a second condensing heat exchanger; the circulating water inlet is arranged on the first condensation heat exchanger, the circulating water outlet is arranged on the main heat exchanger, and the first condensation heat exchanger and the water channel of the main heat exchanger are connected in series and then form a circulating water heating system together with the water storage cavity; the water supply inlet and the water supply outlet are arranged on the second condensation heat exchanger, and external supply inlet water is preheated by the second condensation heat exchanger and then injected into the water storage cavity to form a water supply channel.
According to some embodiments of the present invention, the flue gas inlet port is disposed at an upper portion of the first chamber, the flue gas discharge port is disposed at an upper portion of the second chamber, the first chamber and the second chamber are communicated at a bottom portion thereof, both ends of the first condensing heat exchanger extend diagonally to the outside at upper and lower portions of the first chamber, respectively, and both ends of the second condensing heat exchanger extend diagonally to the outside at upper and lower portions of the second chamber, respectively.
According to some embodiments of the utility model, the heat preservation water storage tank is provided with a hot water supply port and a hot water return port, and constant temperature hot water is continuously supplied to the outside in a circulating manner through an external water pump; the heat preservation water storage tank is also provided with a communicated water inlet, a communicated water outlet, a water replenishing opening and a sewage draining outlet which form a circulating water heating system together with the gas heating module.
According to some embodiments of the utility model, the water replenishment port is in communication with one end of the second condensing heat exchanger.
According to some embodiments of the utility model, the water replenishing port is connected to a water treatment assembly.
According to some embodiments of the present invention, the water replenishing port is communicated with one end of the second condensing heat exchanger, and the other end of the second condensing heat exchanger is connected with a water treatment assembly, the water treatment assembly has a first output end, a second output end and an input end, the first output end is connected with the other end of the second condensing heat exchanger, and the second output end is directly connected with the water replenishing port through a bypass channel.
According to some embodiments of the utility model, the circulation water inlet communicates with a lower portion of the storage tank and the circulation water outlet communicates with an upper portion of the storage tank.
Additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic diagram of an embodiment of the present invention;
FIG. 2 is a first schematic view of a water storage tank and a heating assembly according to an embodiment of the present invention;
FIG. 3 is a second schematic view of a water storage tank and heating assembly in accordance with an embodiment of the present invention;
FIG. 4 is a schematic view of a heating assembly according to an embodiment of the present invention;
FIG. 5 is a schematic view of a condenser according to an embodiment of the present invention;
FIG. 6 is a schematic cross-sectional view of a condenser according to an embodiment of the present invention;
fig. 7 is a partial schematic view of a condenser of the present invention.
Reference numerals: a heat preservation water storage tank 100; a gas heating module 110; a housing 120; a circulating water inlet 130; a circulating water outlet 140; a burner 150; a primary heat exchanger 160; a condenser assembly 170; a housing 180; a flue gas discharge port 190; a flue gas inlet 200; a first condensing heat exchanger 210; a second condensing heat exchanger 220; is communicated with the water inlet 230; is communicated with the water outlet 240; a first cavity 250; a second cavity 260; a water replenishment port 270; a protective housing 280; a water treatment assembly 290; a first output 300; a second output 310; an input terminal 320.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
As shown in fig. 1 to 7, a modular gas-fired volumetric water heater includes: the gas heating device comprises a box shell 120, a heat-preservation water storage tank 100 and a gas heating module 110, wherein the heat-preservation water storage tank 100 is positioned in the box shell 120, a water storage cavity is arranged in the heat-preservation water storage tank 100, and a heat-preservation material and a protective shell 280 are wrapped outside the heat-preservation water storage tank; the gas heating module 110 is used for heating water and is provided with a circulating water inlet 130, a circulating water outlet 140, a supply water inlet and a supply water outlet; the circulating water inlet 130 and the circulating water outlet 140 are respectively communicated with the water storage cavity to form a circulating water heating system, the supply water inlet is communicated with an external cold water pipe, and the supply water outlet is communicated with the water storage cavity to form a water supplementing channel.
The modular gas volume water heater of the above embodiment has the advantages that: 1. the gas heating module 110 is separated from the water storage tank, and a circulating heating mode is adopted, so that water in a high-temperature heating state flows at a high speed, and scaling cannot be precipitated even if calcium and magnesium particles in the water are separated out by heat, and the gas heating module 110 is ensured to work stably for a long time without scaling; 2. the main heat exchange of the gas heating module 110 adopts an all-copper fin high-efficiency heat exchanger, the heat exchange efficiency is 5-7 times higher than that of a steel material smoke tube, the waste heat of the smoke is recovered by adopting a double condensation technology of circulating water condensation and supply inlet water condensation, the smoke exhaust temperature can be reduced to below 40 ℃, the heat efficiency can be improved to more than 106%, and the energy-saving effect is obvious; 3. in the circulating heating process, water is taken from a low-temperature area of the water storage tank and is rapidly heated by the gas heating module 110 and then is delivered to a high-temperature area of the hot water supply outlet, so that hot water can be rapidly discharged without completely heating the water in the water storage tank, and the response speed of supplying the hot water is greatly improved.
As shown in FIG. 4, in some embodiments of the present invention, the gas fired heating module 110 includes a burner 150, a primary heat exchanger 160, and a condenser assembly 170, the burner 150 being used to heat the primary heat exchanger 160, and the condenser assembly 170 being used to absorb the residual heat from the flue gas. The burner 150 is positioned below the main heat exchanger 160 and is used for heating the main heat exchanger 160, and water in the main heat exchanger 160 and water in the heat preservation water storage tank 100 continuously flow in a circulating manner, namely, calcium and magnesium ions in the water in the main heat exchanger 160 are not precipitated, so that scale is not generated in the main heat exchanger 160; the condenser assembly 170 is located above the main heat exchanger 160, and is used for recovering waste heat in the flue gas subjected to heat exchange by the main heat exchanger 160, so that the overall heat efficiency is improved.
Referring to fig. 4 to 7, in some embodiments of the present invention, the condenser assembly 170 has a housing 180, a flue gas exhaust port 190 and a flue gas inlet port 200 are disposed on the housing 180, a first cavity 250 and a second cavity 260 are disposed in the housing 180, the first cavity 250 is provided with a first condensing heat exchanger 210, and the second cavity 260 is provided with a second condensing heat exchanger 220; the circulating water inlet 130 is arranged on the first condensing heat exchanger 210, the circulating water outlet 140 is arranged on the main heat exchanger 160, and the first condensing heat exchanger 210 and the water channel of the main heat exchanger 160 are connected in series and then form a circulating water heating system together with the water storage cavity; the supply water inlet and the supply water outlet are both arranged on the second condensing heat exchanger 220, and the external supply inlet water is preheated by the second condensing heat exchanger 220 and then injected into the water storage cavity to form a water supplementing channel. The circulating water heating system preheats water by absorbing the waste heat of the flue gas through the first heat exchange condenser, then enters the main heat exchanger 160 to exchange heat with the high-temperature flue gas, the waste heat of the flue gas is fully utilized, and the temperature of the flue gas after heat exchange through the first heat exchange condenser can be reduced to about 80 ℃.
Referring to fig. 4 to 7, in some embodiments of the present invention, the flue gas inlet 200 is disposed at the upper portion of the first chamber 250, the flue gas outlet 190 is disposed at the upper portion of the second chamber 260, and the first chamber 250 and the second chamber 260 are communicated at the bottom, so that the flue gas can stay in the housing 180 for a longer time to provide enough time for the flue gas to exchange heat with the first heat exchange condenser and the second heat exchange condenser, thereby improving the overall thermal efficiency. Both ends of the first condensing heat exchanger 210 extend diagonally to the outside at the upper and lower portions of the first chamber 250, respectively, and both ends of the second condensing heat exchanger 220 extend diagonally to the outside at the upper and lower portions of the second chamber 260, respectively; therefore, the first heat exchange condenser can exchange heat with the flue gas in a convection mode, and the second heat exchange condenser can exchange heat with the flue gas in a convection mode.
As shown in fig. 1 to 3, in some embodiments of the present invention, the thermal insulation storage tank 100 is provided with a hot water supply port and a hot water return port, and constantly supplies constant temperature hot water to the outside in a circulating manner by an external water pump; the heat preservation water storage tank 100 is further provided with a communication water inlet 230, a communication water outlet 240, a water replenishing port 270 and a sewage draining outlet which form a circulating water heating system together with the gas heating module 110, wherein the communication water inlet 230 is connected with the circulating water outlet 140, and the communication water outlet 240 is connected with the circulating water inlet 130. The relative height of the communicating water inlet 230 is higher than that of the communicating water outlet 240, water is supplied from the lower part of the water tank to enter the circulating water heating system, and the heat efficiency can be effectively improved.
As shown in fig. 1 to 3, in some embodiments of the present invention, the water replenishing port 270 is communicated with one end of the second condensing heat exchanger 220, and the other end of the second condensing heat exchanger 220 is replenished with normal temperature water, which is generally tap water, and has a lower temperature (about 80 degrees) than the flue gas flowing through the second condensing heat exchanger 220, so that heat can be effectively absorbed from the flue gas flowing through the second condensing heat exchanger 220, and the temperature of the flue gas passing through the second condensing heat exchanger 220 can be reduced to about 40 degrees, thereby the thermal efficiency of the modular gas volumetric water heater can reach over 106%.
In some embodiments of the present invention, in order to reduce the generation of scale in the thermal insulation water storage tank 100, the water replenishing port 270 is connected to a water treatment assembly 290, and the water treatment assembly 290 is generally used for softening tap water and is filled with silicon-phosphorus crystal particles.
As shown in the figure, in some embodiments of the present invention, the water replenishing port 270 communicates with one end of the second condensing heat exchanger 220, the other end of the second condensing heat exchanger 220 is connected to the water treatment assembly 290, the water treatment assembly 290 has a first output end 300, a second output end 310 and an input end 320, the first output end 300 is connected to the other end of the second condensing heat exchanger 220, and the second output end 310 is directly connected to the water replenishing port 270 through a bypass channel.
In this embodiment, in a normal state, the pipeline between the second output end 310 and the water replenishing port 270 is closed, all the water replenished into the water storage tank is preheated by the third heat exchanger, when the water supply speed of the heat preservation water storage tank 100 to the outside is too high, and the water inflow of the water replenishing port 270 is insufficient, the pipeline between the second output end 310 and the water replenishing port 270 may be opened, and the softened water may be replenished into the water replenishing port 270 from the first output end 300 and the second output end 310 at the same time, so as to increase the water replenishing speed.
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 utility model is not limited to the above embodiments, and those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of the utility model, and such equivalent modifications or substitutions are included in the scope defined by the claims of the present application.
Claims (9)
1. A modular gas-fired volumetric water heater, comprising:
the heat preservation water storage tank is internally provided with a water storage cavity, and the outside of the heat preservation water storage tank is wrapped with a heat preservation material and a protective shell; the gas heating module is used for heating water and is provided with a circulating water inlet, a circulating water outlet, a supply water inlet and a supply water outlet; the circulating water inlet with the circulating water outlet respectively with the water storage chamber intercommunication is in order to constitute circulating water heating system, supply water inlet and outside cold water pipe intercommunication, the supply delivery port with the water storage chamber intercommunication is in order to constitute the moisturizing passageway.
2. The modular gas fired volumetric water heater of claim 1, wherein the gas heating module comprises a burner for heating the primary heat exchanger, a primary heat exchanger and a condenser assembly for absorbing residual heat of flue gas.
3. The modular gas-fired volumetric water heater of claim 2, wherein the condenser assembly has a housing with a flue gas exhaust port and a flue gas intake port, the housing having a first cavity and a second cavity in communication, the first cavity having a first condensing heat exchanger disposed therein, the second cavity having a second condensing heat exchanger disposed therein; the circulating water inlet is arranged on the first condensation heat exchanger, the circulating water outlet is arranged on the main heat exchanger, and the first condensation heat exchanger and the water channel of the main heat exchanger are connected in series and then form a circulating water heating system together with the water storage cavity; the water supply inlet and the water supply outlet are arranged on the second condensation heat exchanger, and external supply inlet water is preheated by the second condensation heat exchanger and then injected into the water storage cavity to form a water supply channel.
4. The modular gas-fired volumetric water heater according to claim 3, wherein the flue gas inlet port is provided at an upper portion of the first chamber, the flue gas discharge port is provided at an upper portion of the second chamber, the first chamber and the second chamber communicate at a bottom, both ends of the first condensing heat exchanger extend diagonally to the outside at upper and lower portions of the first chamber, respectively, and both ends of the second condensing heat exchanger extend diagonally to the outside at upper and lower portions of the second chamber, respectively.
5. The modular gas-fired volumetric water heater according to claim 4, wherein the heat-preserving storage tank is provided with a hot water supply port and a hot water return port, and constant-temperature hot water is continuously supplied to the outside in a circulating manner by an external water pump; the heat preservation water storage tank is also provided with a communicated water inlet, a communicated water outlet, a water replenishing opening and a sewage draining outlet which form a circulating water heating system together with the gas heating module.
6. The modular gas-fired volumetric water heater according to claim 5, characterized in that the water replenishment port communicates with one end of the second condensing heat exchanger.
7. The modular gas-fired volumetric water heater of claim 5, wherein the water refill port is connected to a water treatment assembly.
8. The modular gas-fired volumetric water heater according to claim 5, characterized in that the water replenishment port communicates with one end of the second condensation heat exchanger, the other end of the second condensation heat exchanger being connected to a water treatment assembly having a first output connected to the other end of the second condensation heat exchanger, a second output and an input, the second output being directly connected to the water replenishment port through a bypass channel.
9. The modular gas-fired volumetric water heater of claim 1 wherein the circulation water inlet communicates with a lower portion of the storage tank and the circulation water outlet communicates with an upper portion of the storage tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122978998.0U CN216592253U (en) | 2021-11-30 | 2021-11-30 | Modular gas volume water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122978998.0U CN216592253U (en) | 2021-11-30 | 2021-11-30 | Modular gas volume water heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216592253U true CN216592253U (en) | 2022-05-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122978998.0U Active CN216592253U (en) | 2021-11-30 | 2021-11-30 | Modular gas volume water heater |
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| CN (1) | CN216592253U (en) |
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2021
- 2021-11-30 CN CN202122978998.0U patent/CN216592253U/en active Active
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