CN214333067U - Novel anticorrosive coating gas heater heat exchanger - Google Patents

Abstract

The utility model discloses a novel anticorrosive coating gas heater heat exchanger relates to heat exchanger technical field, including the heat exchanger casing, the outer wall hanging wall of heat exchanger casing is equipped with the coil pipe, and the exhanst gas outlet has been seted up at the top of heat exchanger casing, be fixed with heat transfer fin in the exhanst gas outlet, be fixed with the heat exchange tube between the heat transfer fin, the outer wall that the heat exchanger casing was passed to the one end of heat exchange tube is connected with the inlet tube, and the other end passes the outer wall of heat exchanger casing to be linked together with the one end of coil pipe, the other end of coil pipe is connected with the outlet pipe, be connected with the bypass pipe of L shape between the lower part of inlet tube and the outlet pipe, and be connected with sealing connection mechanism between bypass pipe and inlet tube and the outlet pipe. The utility model discloses accessible bypass pipe reduces the leaving water temperature, avoids the user to scald, and the cleanness of bypass pipe with change efficiently.

Description

Novel anticorrosive coating gas heater heat exchanger

Technical Field

The utility model relates to a heat exchanger technical field especially relates to a novel anticorrosive coating gas heater heat exchanger.

Background

The gas water heater is a gas appliance which takes gas as fuel and transfers heat to cold water flowing through a heat exchanger in a combustion heating mode to achieve the purpose of preparing hot water. It is mainly composed of valve body assembly, main burner, small fire burner, heat exchanger and safety device. The forced-ventilated device of the flue type water heater flue and the forced-ventilated type water heater is also included. The basic working principle of the gas water heater is that cold water enters the water heater, flows through the water-gas linkage valve body, pushes the water-gas linkage valve under the action of a certain pressure difference value of flowing water, and simultaneously pushes the direct-current power supply microswitch to switch on a power supply and start the pulse igniter. The gas water heater is popular among users because of the characteristics of being opened and used, not needing to wait, having smaller floor area and the like.

The temperature is higher when current gas heater goes out water, scalds the user easily, and the security is low, and current bypass pipe is connected through fixed modes such as welding more, and it is inconvenient to dismantle, and inefficiency, the change after the inside cleanness of bypass pipe of not being convenient for and damage, we have provided a novel anticorrosive coating gas heater heat exchanger for this reason.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a novel heat exchanger of a gas water heater with an anticorrosive coating.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a novel anticorrosion coating gas water heater heat exchanger comprises a heat exchanger shell, wherein a coil pipe is arranged on the upper wall of the outer wall of the heat exchanger shell, a flue gas outlet is formed in the top of the heat exchanger shell, heat exchange fins are fixedly arranged in the flue gas outlet, heat exchange tubes are fixedly arranged among the heat exchange fins, one end of each heat exchange tube penetrates through the outer wall of the heat exchanger shell to be connected with a water inlet tube, the other end of each heat exchange tube penetrates through the outer wall of the heat exchanger shell to be communicated with one end of the coil pipe, the other end of each coil pipe is connected with a water outlet tube, an L-shaped bypass tube is connected between the lower portion of the water inlet tube and the water outlet tube, a sealing connection mechanism is connected between the bypass tube and the water inlet tube and the water outlet tube and comprises a pipe fitting, a first sealing groove is formed in the outer wall of one end of the pipe fitting, a first sealing ring is fixedly arranged in the first sealing groove, and a second sealing groove and a rotating groove are formed in the outer wall of the other end of the pipe fitting, and a second sealing ring is fixed in the second sealing groove, a connector is movably connected in the rotating groove, and the connector is connected with the bypass pipe through threads.

Preferably, the outer wall of the heat exchanger shell is coated with an anticorrosive coating, and the inner walls of the coil pipe, the heat exchange pipe, the water inlet pipe, the water outlet pipe and the bypass pipe are coated with anticorrosive coatings.

Preferably, the heat exchange tube consists of a plurality of transverse short tubes, and the short tubes are communicated with each other through a U-shaped tube.

Preferably, the connector comprises a rotating connecting plate and a connecting pipe, the inner diameter of the connecting pipe is the same as the outer diameter of the bypass pipe, the rotating connecting plate is movably connected with the pipe fitting through a rotating groove, a third sealing ring is fixed on one side of the rotating connecting plate, and the third sealing ring is located inside the connector.

Preferably, threaded holes matched with the pipe fittings are formed in the water inlet pipe and the water outlet pipe, and external threads matched with the threaded holes are formed in the outer walls of the pipe fittings.

The utility model has the advantages that:

1. this novel design of bypass pipe in the middle of well inlet tube and the outlet pipe can be at the in-process that uses, and in cold water reposition of redundant personnel to the outlet pipe in the inlet tube, mix with hot water, can reduce leaving water temperature, avoid the user to scald.

2. This bypass pipe in novel back is used for a long time, and accessible sealing connection mechanism realizes the connection and the dismantlement of bypass pipe, and the leakproofness is good, and easy operation has improved the cleanness and the change efficiency to the bypass pipe.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a side view of the present invention;

fig. 3 is a schematic view of the connection structure of the middle water inlet pipe and the bypass pipe of the present invention.

Reference numbers in the figures: 1. a heat exchanger housing; 2. a coil pipe; 3. a flue gas outlet; 4. heat exchange fins; 5. a heat exchange pipe; 6. a water inlet pipe; 7. a water outlet pipe; 8. a bypass pipe; 9. a sealing connection mechanism; 91. a pipe fitting; 92. a first seal ring; 93. a second seal ring; 94. a connector; 941. Rotating the connecting plate; 942. a connecting pipe; 943. and a third sealing ring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-3, a novel anticorrosion coating gas water heater heat exchanger comprises a heat exchanger shell 1, an anticorrosion coating is coated on the outer wall of the heat exchanger shell 1, a coil pipe 2 is coiled on the outer wall of the heat exchanger shell 1, a flue gas outlet 3 is formed in the top of the heat exchanger shell 1, heat exchange fins 4 are fixed in the flue gas outlet 3, heat exchange pipes 5 are fixed between the heat exchange fins 4, one end of each heat exchange pipe 5 penetrates through the outer wall of the heat exchanger shell 1 and is connected with a water inlet pipe 6, the other end of each heat exchange pipe penetrates through the outer wall of the heat exchanger shell 1 and is communicated with one end of the coil pipe 2, the other end of the coil pipe 2 is connected with a water outlet pipe 7, an L-shaped bypass pipe 8 is connected between the lower part of the water inlet pipe 6 and the water outlet pipe 7, a sealing connection mechanism 9 is connected between the bypass pipe 8 and the water inlet pipe 6 and the water outlet pipe 7, the sealing connection mechanism 9 comprises a pipe fitting 91, the heat exchanger comprises a pipe fitting 91, a first sealing groove is formed in the outer wall of one end of the pipe fitting 91, a first sealing ring 92 is fixed in the first sealing groove, a second sealing groove and a rotating groove are formed in the outer wall of the other end of the pipe fitting 91, a second sealing ring 93 is fixed in the second sealing groove, a connector 94 is movably connected in the rotating groove, the connector 94 is connected with a bypass pipe 8 through threads, an anti-corrosion layer is coated on the inner walls of the coil pipe 2, the heat exchange pipe 5, the water inlet pipe 6, the water outlet pipe 7 and the bypass pipe 8, and the service life of the heat exchanger is effectively prolonged.

Referring to fig. 1 and 2, the heat exchange tube 5 is composed of a plurality of transverse short tubes, and the short tubes are communicated with each other through U-shaped tubes, so as to heat cold water.

Referring to fig. 3, the connector 94 includes a rotary connection plate 941 and a connection pipe 942, the inner diameter of the connection pipe 942 is the same as the outer diameter of the bypass pipe 8, the rotary connection plate 941 is movably connected to the pipe 91 through a rotary groove, a third sealing ring 943 is fixed on one side of the rotary connection plate 941, the third sealing ring 943 is located inside the connector 94, and the connector 94 has good sealing performance.

Referring to fig. 1, 2 and 3, threaded holes matched with the pipe fitting 91 are formed in the water inlet pipe 6 and the water outlet pipe 7, external threads matched with the threaded holes are formed in the outer wall of the pipe fitting 91, and the water inlet pipe 6 and the water outlet pipe 7 are convenient to connect.

The working principle is as follows: after the bypass pipe 8 between the water inlet pipe 6 and the water outlet pipe 7 is started, after the heat exchange pipe 5 is heated, hot water enters the water outlet pipe 7 through the coil pipe 2, the water temperature in the water outlet pipe 7 is high, the cold water in the water inlet pipe 6 can be shunted into the water outlet pipe 7 by the bypass pipe 8 and is mixed with the hot water, the water outlet temperature can be reduced, the user is prevented from being scalded, when the bypass pipe 8 needs to be replaced, the connector 94 is rotated, the pipe 91 is pushed back to enter the water inlet pipe 6 and the water outlet pipe 7, the pipeline is temporarily blocked, the water outflow is prevented, the sealing effect is realized by the second sealing ring 93, at the moment, the bypass pipe 8 can be taken down and replaced by a new bypass pipe 8, then the pipe 91 and the connector 94 are reversely rotated, the bypass pipe 8 is connected between the water inlet pipe 6 and the water outlet pipe 7, the first sealing ring 92 plays a sealing role, the third sealing ring 943 plays a sealing role, and the leakage of the bypass pipe 8 is avoided, the sealing performance is good.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, 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 implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims (5)

1. A novel anticorrosion coating gas water heater heat exchanger comprises a heat exchanger shell (1) and is characterized in that a coil pipe (2) is arranged on the upper wall of the heat exchanger shell (1), a smoke outlet (3) is formed in the top of the heat exchanger shell (1), heat exchange fins (4) are fixed in the smoke outlet (3), heat exchange pipes (5) are fixed between the heat exchange fins (4), one end of each heat exchange pipe (5) penetrates through the outer wall of the heat exchanger shell (1) and is connected with a water inlet pipe (6), the other end of each heat exchange pipe penetrates through the outer wall of the heat exchanger shell (1) and is communicated with one end of the coil pipe (2), the other end of each coil pipe (2) is connected with a water outlet pipe (7), an L-shaped bypass pipe (8) is connected between the lower portion of the water inlet pipe (6) and the water outlet pipe (7), and a sealing connection mechanism (9) is connected between the bypass pipe (8) and the water inlet pipe (6) and the water outlet pipe (7), sealing connection mechanism (9) have seted up seal groove one including pipe fitting (91) on the one end outer wall of pipe fitting (91), and seal groove one internal fixation has first sealing washer (92), has seted up seal groove two and rotation groove on the other end outer wall of pipe fitting (91), and seal groove two internal fixation has second sealing washer (93), rotates inslot swing joint and has connector (94), and connector (94) pass through the screw thread and link to each other with bypass pipe (8).

2. The novel anticorrosion coating gas water heater heat exchanger is characterized in that an anticorrosion coating is coated on the outer wall of the heat exchanger shell (1), and anticorrosion coatings are coated on the inner walls of the coil pipe (2), the heat exchange pipe (5), the water inlet pipe (6), the water outlet pipe (7) and the bypass pipe (8).

3. The novel anticorrosion coating gas water heater heat exchanger according to claim 1, wherein the heat exchange tube (5) is composed of a plurality of transverse short tubes, and the short tubes are communicated with each other through a U-shaped tube.

4. The heat exchanger of the novel anti-corrosion coating gas water heater according to claim 1, wherein the connector (94) comprises a rotary connecting plate (941) and a connecting pipe (942), the inner diameter of the connecting pipe (942) is the same as the outer diameter of the bypass pipe (8), the rotary connecting plate (941) is movably connected with the pipe fitting (91) through a rotary groove, a third sealing ring (943) is fixed on one side of the rotary connecting plate (941), and the third sealing ring (943) is located inside the connector (94).

5. The heat exchanger of the novel gas water heater with the anticorrosive coating according to claim 1, wherein the water inlet pipe (6) and the water outlet pipe (7) are both provided with threaded holes matched with the pipe fitting (91), and the outer wall of the pipe fitting (91) is provided with external threads matched with the threaded holes.

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