The invention discloses a gas water heater which comprises a fan, a gas inlet pipe and an intake valve connected to the gas inlet pipe in series. The gas water heater further comprises a jacket heat exchanger, a catalytic combustor, a bottom shell, a preheating combustor, a heat collection barrel, a main heat exchanger and a controller. An upper combustion chamber is defined by the jacket heat exchanger, the catalytic combustor is installed on the upper combustion chamber, a lower combustion chamber is formed on the lower portion of the bottom shell, the bottom shell is provided with a smoke exhaust port, the bottom shell and the jacket heat exchanger are in butt connection to form a heat exchange chamber, the preheating combustor is installed in the lower combustion chamber, the heat collection barrel is installed in the heat exchange chamber, one end of the heat collection barrel is connected to the upper combustion chamber, the other end of the heat collection barrel is connected tothe lower combustion chamber, the main heat exchanger is installed in the heat exchange chamber and arranged on the periphery of the heat collection barrel in a sleeving mode, and the controller is used for controlling the preheating combustor to carry out combustion so as to heat the catalytic combustor when the gas water heater is started, and controlling the preheating combustor to be turned off when the temperature of the catalytic combustor reaches the initiation temperature or above. By means of the gas water heater, the energy utilization rate can be sufficiently improved, and emissionof hazardous substance can be sufficiently reduced.

Gas water heater

The invention discloses a water storage tank and a gas water heater. The water storage tank is used for the gas water heater and comprises a head cover and a tank body, the head cover and the tank body are fixedly connected to form a containing cavity in an enclosing mode, the head cover and/or the tank body are/is provided with a water inlet and/or a water outlet communicated with the containing cavity, and the joint of the head cover and the tank body transit through a cambered surface. When the side wall of the tank body of the water storage tank and the head cover are subjected to extrusion, the joint of the tank body and the head cover is subjected to tension of separation trends of the tank body and the head cover, the tension applied to the joint is uniformly distributed on the transition cambered surface through the cambered surface, the strength and angle of the tension are distributed in the trends beneficial for the joint, the joint can bear a large load, the bearing load of the whole water storage tank is increased, seams, cracks and the like are reduced, and a user can conveniently use the gas water heater stably and safely.

Water storage tank and gas water heater

The invention discloses a gas water heater and a heat exchanger used for the gas water heater. The heat exchanger comprises a shell, a main heat exchanger body, a condensation heat exchanger body and an installing piece. A heat exchange cavity is defined in the shell. A smoke inlet communicating with the heat exchange cavity is formed in the upper portion of the shell, and a smoke outlet communicating with the heat exchange cavity is formed in the lower portion of the shell. The main heat exchanger body is arranged in the heat exchange cavity and located between the smoke inlet and the smoke outlet. The condensation heat exchanger body is arranged in the heat exchange cavity and located between the main heat exchanger body and the smoke outlet. The installing piece is installed in the shell, and the main heat exchanger body and the condensation heat exchanger body are arranged on the installing piece. According to the heat exchanger used for the gas water heater in the embodiment, integrated installation of the main heat exchanger body and the condensation heat exchanger body is achieved, assembly is convenient, and the structure is more simple; and the manufacturing technology is simplified, and the gas leakage risk is reduced.

Gas water heater and heat exchanger used for gas water heater

The invention discloses a gas water heater and a heat exchanger for the same The heat exchanger comprises a housing, a main heat exchanger, a condensing heat exchanger and a mounting piece, wherein a heat exchange chamber is defined in the housing; a smoke inlet communicating with the heat exchange chamber is formed in the upper part of the housing; a smoke outlet communicating with the heat exchange chamber is formed in the lower part of the housing; the main heat exchanger is arranged in the heat exchange chamber and located between the smoke inlet and the smoke outlet; the condensing heat exchanger is arranged in the heat exchange chamber and located between the main heat exchanger and the smoke outlet; the mounting piece is mounted in the housing; and the main heat exchanger and the condensing heat exchanger are arranged on the mounting piece The heat exchanger for the gas water heater, provided by the embodiment of the invention, realizes integrated mounting of the main heat exchanger and the condensing heat exchanger, is convenient to assemble and simpler in structure, simplifies the manufacturing process and reduces the risk of gas leakage

Gas water heater and heat exchanger for same

The invention discloses a flue assembly of a water heater and the water heater. The flue assembly defines a passage for smoke flowing, the passage is provided with a flue inlet and a flue outlet, andthe passage comprises a main body section and a contraction section; one end of the main body section communicates with the flue inlet, the contraction section is provided with a first end and a second end, the first end is in communication with the other end of the main body section, the second end is in communication with the flue outlet, the width of the first end is W1, and the width of the second end is W2; and in the cross section perpendicular to the smoke flow direction, the cross-sectional area of the first end is S1, and the cross-sectional area of the second end is S2, wherein W1 islarger than W2, and S1 is equal to S2. According to the flue assembly of the water heater, the flue assembly is arranged to be provided with the main body section and the contraction section, the width of the first end of the contraction section is larger than the width of the second end of the contraction section, the cross-sectional area of the first end is equal to the cross-sectional area ofthe second end, and therefore the structure of the flue assembly is simplified, the aerodynamic noise of the flue assembly is reduced, and the pressure loss of the flue assembly is reduced.

Flue assembly of water heater and water heater

The utility model discloses a gas heater and heat exchanger who is used for gas heater, heat exchanger includes: the shell, it has the heat transfer chamber to inject in the shell, and the upper portion of shell is equipped with the mouth that advances with heat transfer chamber intercommunication, and the lower part of shell is equipped with the outlet flue with heat transfer chamber intercommunication, main heat exchanger, main heat exchanger establish the heat transfer intracavity and be located into the mouth and the outlet flue between, condensation heat exchanger, condensation heat exchanger are established at the heat transfer intracavity and are located between main heat exchanger and the outlet flue, the installed part, ann is cased for the installed part, and main heat exchanger and condensation heat exchanger are established on the installed part. According to the utility model discloses an integral type installation, convenient assembling, the structure is simpler and more direct, has simplified manufacturing process, has reduced risks of air leakage that is used for gas heater's heat exchanger to realize main heat exchanger and condensation heat exchanger.

Gas heater and heat exchanger who is used for gas heater

A heat exchanger and a water heater. The heat exchanger comprises heat exchange components (100), multiple rows of heat exchange pipes (200), a first flow collection end cover (300), and a second flow collection end cover (400). A mounting gap is formed between every two adjacent rows of heat exchange pipes (200). The heat exchange components (100) are disposed in the mounting gaps, and each heat exchange component (100) is disposed in attachment to the corresponding two adjacent heat exchange pipes (200) in the heat exchanger. The heat exchange component (100) comprises heat exchange sheets (110), and the heat exchange sheets (110) are made of metal materials. The heat exchange sheets (110) are bent back and forth in the thickness direction of the heat exchange sheets (110) to form a wave shape, so as to form protrusions (111) disposed at intervals on the front surfaces and the back surfaces of the heat exchange sheets (110). A smoke passage (112) is formed between every two adjacent protrusions (111) on the surface of the same side of each heat exchange sheet (110), and the smoke passages (112) form smoke channels of the heat exchange components (100). The smoke channels of the heat exchange component (100) are disposed in communication with a smoke inlet (101) and a smoke outlet. The first flow collection end cover (300) and the second flow collection end cover (400) correspondingly cover two ends of the multiple rows of heat exchange pipes (200), and the corresponding heat exchange pipes (200) in the multiple rows of heat exchange pipes (200) are communicated with each other.

Heat exchanger and water heater

The invention discloses a heat exchange part and a heat exchanger. The heat exchange part is adjacent to two adjacent heat exchange pipes in the heat exchanger. The heat exchange part comprises heat exchange pieces. The heat exchange pieces are bent back and forth in the thickness direction of the heat exchange pieces to form a wave shape so that protrusions which are arranged at intervals can be formed on the front faces and the back faces of the heat exchange pieces. A smoke passing way is formed between every two adjacent protrusions on the surface of the same side of each heat exchange piece. Smoke channels of the heat exchange pieces are composed of the smoke passing ways. According to the technical scheme, the heat exchange efficiency of the heat exchanger with the heat exchange pieces can be improved.

Liang Guorong

Papers

Gas heater and heat exchanger who is used for gas heater

Water storage tank and gas water heater

Heat exchanger and water heater

Heat exchange part and heat exchanger

Gas water heater and heat exchanger used for gas water heater