CN214746466U - Water heater utilizing waste heat of gas - Google Patents

Abstract

The utility model provides a utility model gas waste heat utilization water heater, the structure comprises smoke box, spiral heating pipe and inlet outlet, main flue room, left and right sides side auxiliary flue room and heat preservation and system hot water circulating device, its characterized in that: the spiral heating pipe is arranged in the smoke box, the straight section of the spiral pipe is arranged in the main flue chamber, the bent section of the spiral pipe is arranged in the auxiliary flue chambers at two sides of the main flue chamber, main stream smoke and side stream smoke are formed when the smoke enters the smoke box, the main stream smoke enters the main flue chamber, and the side stream smoke enters the auxiliary flue chambers.

Description

Water heater utilizing waste heat of gas

Technical Field

The utility model relates to a water heater equipment of energy saving and emission reduction technique and low carbon life demand, especially "gas waste heat utilization water heater" of gas cooking stove waste heat utilization, its purpose is for realizing that high temperature flue gas discharges secondary energy and runs off and waste and obtain effectual utilization and recovery as far as possible.

Background

With the improvement of the living standard of people in China and the continuous increase of the demand of domestic hot water, water heater products with various markets are widely used in the industries such as families, factories, schools, commercial services and the like, and the water heater products mainly comprise electric water heaters, gas water heaters, solar water heaters, air energy water heaters and the like; due to the rapid development of the scale construction of domestic economy, the use amount of a gas stove is increased rapidly, a large amount of natural gas energy is consumed, and a large amount of waste heat is discharged into the atmosphere along with loss of the waste heat, the worldwide energy crisis cautions people to implement low-carbon life, the utilization of the secondary energy of the waste heat of the gas is very important, most of water heaters in the market are high-energy-consumption products at present, and the gas waste heat utilization water heater with the heat recovery function is not put into the market until now.

The gas cooking stove has the functional characteristics of large heat load, high speed of cooking and frying, capability of hanging hot water for boiling hot water, high heat load utilization rate, more convenience in use, cleanness, sanitation, less harmful gas emission and the like compared with a coal-fired cooking stove, and because the gas cooking stove is used for semi-open heat dissipation, the inherent property determines that the instant heating negative utilization rate is less than half, and most of the gas heat load is changed into high-temperature smoke to be discharged to the atmosphere; people eat food as the day, each province in China has tens of thousands of gas cookers which are used all the year round, a large amount of heat energy is lost and wasted due to the emission of a large amount of high-temperature gas waste heat, although the historical remaining problem of multi-party effort and improvement is not fundamentally solved all the time, energy conservation and emission reduction are advanced in China, and aiming at the condition that the gas cookers have low heat load utilization rate and excessive heat loss, a ' water boiler utilizing waste heat of cookers ' also called as waste heat treasure ' is researched and developed, and a product of the boiler waste heat boiler is matched and installed on a smoke outlet of the cookers to be used, so that the smoke exhaust temperature and harmful gas emission are reduced, the heat load utilization rate of the cookers is greatly improved, and the energy-saving benefit is obvious that boiled water and hot water can be freely provided; because "the treasured of waste heat" volume is not supplied the boiling water volume by a wide margin, in the pot and stove continuous use longer time in-process, only constantly use boiling hot water and the heating of moisturizing cold water can realize higher waste heat utilization ratio, meet boiling hot water and can not in time emit the use to 100 ℃, exhaust gas temperature will resume again, high temperature discharge waste heat can not reach the utilization, in order to solve the problem at all, the utility model discloses "gas waste heat utilization water heater" of new construction has been designed on the basis of the treasured boiler of waste heat, also can call as "the treasured water heater of waste heat" be used for the gas kitchen range including gas pot and gas boiler exhaust port, the result of use is expected to be close full waste heat recovery and can supply more a large amount of life hot water after perfectly forming the product to make original gas pot and stove heat load low-utilization ratio increase substantially.

Disclosure of Invention

The utility model discloses gas waste heat utilization water heater aim at provides a technique, enables the gas kitchen range and includes that gas boiler, gas pot kitchen discharge's high temperature flue gas waste heat obtains furthest's utilization.

The utility model discloses the purpose will be realized through following technical scheme:

the utility model provides a novel gas waste heat utilization water heater, the structure comprises smoke box, spiral heating pipe and inlet outlet, main flue room, left and right sides side auxiliary flue room and heat preservation and system hot water circulation device, its characterized in that: the spiral heating pipe is positioned in the smoke box, the straight section part of the spiral pipe is positioned in the main flue chamber, the bent part is positioned in the auxiliary flue chambers at two sides of the main flue chamber, when smoke enters the smoke box, mainstream smoke and side stream smoke are formed, the mainstream smoke enters the main flue chamber, and the side stream smoke enters the auxiliary flue chambers; it is also characterized in that: the inner walls of the left side and the right side of the smoke box and the left side plate and the right side plate of the main flue chamber form an auxiliary flue chamber, the upper end and the lower end of the side plate of the main flue chamber are provided with large smoke discharge holes, the large smoke discharge holes which are lower than the upper ends of the left side plate and the right side plate at the top of the main flue chamber are sealing cover plates, main stream smoke enters the main flue chamber to scour the straight section part of the spiral heating pipe, and side stream smoke enters the auxiliary flue chamber from the large smoke discharge holes at the lower ends of the left side plate and the right side plate to scour the bent part of the spiral pipe; it is also characterized in that: the main flue chamber side plates are provided with a certain amount of small smoke holes in the middle besides the large smoke holes at the upper and lower ends, when mainstream smoke enters the main flue chamber and is washed to the top and is blocked, the mainstream smoke flows downwards in a circuitous manner from the small smoke holes in the middle of the two side plates to the auxiliary flue chamber to be converged with the sidestream smoke, then flows from the auxiliary flue chamber to the top through the large smoke holes at the upper ends of the side plates to the gathering smoke cavity, and is discharged to the atmosphere from an outlet.

The utility model discloses gas waste heat utilization water heater's theory of operation: when high-temperature smoke of the gas stove enters a smoke box of the water heater, the high-temperature smoke is divided into middle main stream smoke and two side stream smoke, the main stream smoke enters a straight section part of a spiral heating pipe of a main flue chamber, the side stream smoke enters an auxiliary flue chamber from a large smoke exhaust hole at the lower end of a side plate of the main flue chamber to wash a bent part of the spiral pipe, the main stream smoke washes a top cover plate of the main flue chamber and is blocked to be circuitously returned to the middle parts of the two side plates, the main stream smoke enters the auxiliary flue chamber from a small smoke exhaust hole and is converged with the side stream smoke to rise to wash the bent part of the spiral pipe, and the main stream smoke washes the top part, passes through a gathering smoke exhaust cavity from the large smoke exhaust hole at the upper ends of the two side plates and is discharged to the atmosphere through an outlet; because the utility model discloses gas waste heat utilization water heater utilizes the differentiation flue gas to erode respectively and the spiral heating pipe is erodeed in the last summary for mainstream and side stream, has prolonged the flue gas and has erodeed the lag time of heat transfer, combines prior art system hot water circulating device to carry out flowing water circulation heating simultaneously, has improved heat exchange efficiency greatly and has stored a large amount of hot water to make gas pot kitchen exhaust gas temperature obtain the biggest reduction and the waste heat obtains the maximum utilization; the utility model discloses gas waste heat utilization water heater forms the product and is used for gas pot kitchen supporting use after research and development trial-manufacture is perfect, will make gas pot kitchen increase waste heat utilization water heater function, has changed the not enough half defect of gas pot kitchen heat utilization ratio always, is expected to make its heat utilization ratio improve the one time.

Drawings

Fig. 1 is a schematic front view of the embodiment of the present invention.

Fig. 2 is a schematic side view of the embodiment of the present invention.

Fig. 3 is a schematic diagram of the present invention in combination with a prior art system hot water circulation device.

In fig. 1 to 3, reference numerals denote: 1. a smoke box; 2. a right side sub-flue chamber; 3. a right side plate of the main flue chamber; 4. a spiral heating pipe; 5. a smoke outlet; 6. sealing the cover plate; 7. a collecting smoke exhaust cavity; 8. a left side plate of the main flue chamber; 9. a left side sub-flue chamber; 10. a water inlet; 11. a heat-insulating layer; 12. a water outlet; 13. a main flue chamber; 14. a smoke inlet; 15. a gas range; 16. a waste heat utilization water heater; 17. a system hot water circulation device; 17-1, a heat storage water tank; 17-2 circulating water pump; 17-3 system connecting pipeline.

Detailed Description

The following combines the attached drawing to be right the utility model discloses gas waste heat utilization water heater operating mode embodiment further describes:

1. the structure of the water heater is shown in the front view in FIG. 1: high-temperature smoke exhaust enters the smoke box (1) from a smoke inlet (14), main stream smoke exhaust with smoke differentiation enters the main flue chamber (13) to wash upwards the spiral heating pipe (4) to the top sealing cover plate (6) and is prevented from roundly flowing to the left side plate (8) and the right side plate (3) of the main flue chamber on two sides, and enters and is converged with smoke of the left auxiliary flue chamber (9) and the right auxiliary flue chamber (2) through small smoke exhaust holes in the middle of the side plates; the divided side stream smoke exhaust of the smoke flows into a left side auxiliary flue chamber (9) and a right side auxiliary flue chamber (2) through a square large smoke exhaust hole at the lower end of a side plate of a main flue chamber (13) respectively, flows upwards to scour the bent part of a spiral heating pipe (4), flows upwards to scour the bent part of the spiral heating pipe after the smoke converged in the auxiliary flue chambers flows upwards, flows into a gathering smoke exhaust cavity (7) through the square large smoke exhaust hole at the upper end of the side plate from the top respectively, and is discharged to the atmosphere from a smoke exhaust port (5);

2. the structural side view of the water heater is shown in FIG. 2: the upper end and the lower end of a left side plate (8) of the main flue chamber are provided with square large smoke exhaust holes, the covered back surface of the main flue chamber is the same as the left side plate in structure corresponding to a right side plate (3), and a spiral heating pipe penetrates between the two side plates;

3. fig. 3 is a schematic diagram of the connection between the water heater and the hot water circulating device of the prior art system, and the connection between the water heater and the hot water circulating device of the prior art system is shown as follows: after the water heating system shown in the figure is filled with water, a gas cooker (15) starts to use rice and the like, high-temperature exhaust gas enters a waste heat utilization water heater (16) to heat water, a circulating water pump (17-2) shown in figure 1 is combined to operate, circulating water enters from a water inlet (10) of the water heater and passes through a spiral heating pipe (4) to implement primary circulating heating, flows out from a water outlet (12) and enters a system hot water circulating device (17), hot water enters the upper part of a heat storage water tank (17-1) from a system connecting pipeline (17-3), as primary circulating heating water is replaced from the upper part of the heat storage water tank to the lower part more and more, replaced lower cold water is gradually discharged from the bottom and sent into the water heater (16) from the circulating water pump (17-2) through the system connecting pipeline (17-3) to complete a primary circulating heating period of the total water amount, and then the secondary circulating heating is repeated to improve the water temperature again, after cyclic heating for multiple times, the water temperature of the heat storage water tank meets the requirement of high temperature setting, the water temperature of the upper part of the heat storage water tank is high, the water temperature of the middle part of the heat storage water tank is slightly low, and the water temperatures of the lower part and the bottom part of the heat storage water tank are lowest, so that the utilization of the waste heat of smoke exhaust for long-time continuous use of the cooking stove can be met, and as the heat storage water tank has good hot water heat preservation and large capacity, the upper high-temperature water is always supplied to the outside and tap water is supplied to the inner lower part, so that a large amount of domestic hot water can be supplied at different time periods;

the utility model discloses the aforesaid is the power cycle heating application embodiment of a unit, extends on this basis to be applied to direct current heating, natural circulation heating and the parallelly connected combination of polycell etc. and all belongs to prior art no longer detailed description.

Claims (3)

1. The gas waste heat utilization water heater structurally comprises a smoke box, a spiral heating pipe, a water inlet, a water outlet, a main flue chamber, a left side auxiliary flue chamber, a right side auxiliary flue chamber, a heat insulation layer and a system hot water circulating device, and is characterized in that: the spiral heating pipe is arranged in the smoke box, the straight section of the spiral pipe is arranged in the main flue chamber, the bent section of the spiral pipe is arranged in the auxiliary flue chambers at two sides of the main flue chamber, main stream smoke and side stream smoke are formed when the smoke enters the smoke box, the main stream smoke enters the main flue chamber, and the side stream smoke enters the auxiliary flue chamber.

2. The gas waste heat utilization water heater according to claim 1, characterized in that: the inner walls of the left side and the right side of the smoke box and the left side plate and the right side plate of the main flue chamber form an auxiliary flue chamber, the upper end and the lower end of the side plate of the main flue chamber are provided with large smoke discharge holes, the large smoke discharge holes which are arranged at the top of the main flue chamber and are lower than the upper end of the side plate are sealing cover plates, main stream smoke enters the main flue chamber to wash the straight section of the spiral pipe, and side stream smoke enters the auxiliary flue chamber from the large smoke discharge holes at the lower ends of the left side plate and the right side plate to rise to wash the bent section of the spiral pipe.

3. The gas waste heat utilization water heater according to claim 1, characterized in that: the main flue chamber side plate is provided with a certain amount of small smoke exhaust holes at the middle part except for the large smoke exhaust holes at the upper end and the lower end, when main flue gas enters the main flue chamber and is washed to the top part and blocked, the main flue gas flows downwards in a circuitous way from the small smoke exhaust holes of the two side plates to the auxiliary flue chamber to be converged with side flue gas, and then flows to the top part from the auxiliary flue chamber through the large smoke exhaust holes at the upper end of the side plate to the gathering smoke exhaust cavity and is discharged to the atmosphere from an outlet.

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