CN212619286U

CN212619286U - Gas water heater with cold water function is preheated to flue gas

Info

Publication number: CN212619286U
Application number: CN202021229715.1U
Authority: CN
Inventors: 沈云明
Original assignee: Shaoxing Haile Electrical Appliance Co ltd
Current assignee: Shaoxing Haile Electrical Appliance Co ltd
Priority date: 2020-06-29
Filing date: 2020-06-29
Publication date: 2021-02-26
Anticipated expiration: 2030-06-29

Abstract

The utility model discloses a gas heater with cold water function is preheated to flue gas, including the gas heater body, be connected with cold water on the gas heater body and advance pipe, hot water exit tube, air and advance pipe, gas and advance pipe and smoke discharge pipe spare, the smoke discharge pipe spare includes bend tobacco pipe, vertical flue tobacco pipe, and vertical flue tobacco pipe week side is provided with and is the winding heat exchange tube of heliciform, and the week side of heat exchange tube is provided with the heat subassembly that scatters and disappears that reduces the heat of vertical flue tobacco pipe. The utility model has the advantages of it is following and effect: the spirally wound heat exchange tubes are arranged on the periphery of the straight flue pipe, one end of each heat exchange tube is connected with the urban water supply pipe network, and the other end of each heat exchange tube and one end of the cold water inlet pipe, which is far away from the gas water heater body, so that cold water entering the cold water inlet pipe can be preheated by using waste heat of flue gas, energy consumption required in the cold water heating process is saved, and the energy-saving effect is achieved; meanwhile, the heat dissipation of the heat insulation component is reduced by the arrangement part of the heat insulation component.

Description

Gas water heater with cold water function is preheated to flue gas

Technical Field

The utility model relates to a gas heater field, in particular to gas heater with cold water function is preheated to flue gas.

Background

The gas water heater is also called as a gas water heater, and refers to a gas appliance which takes gas as fuel and transfers heat to cold water flowing through a heat exchanger in a combustion heating mode so as to achieve the purpose of preparing hot water.

The gas water heater body of the gas water heater is connected with a cold water inlet pipe, a hot water outlet pipe, an air inlet pipe, a gas inlet pipe and a smoke discharge pipe; meanwhile, valves are arranged at the positions of the cold water inlet pipe, the hot water outlet pipe and the gas inlet pipe which are connected to the gas water heater body. In the use process, cold water enters the gas water heater body from the cold water inlet pipe and is heated by combustion of gas and oxygen, the cold water is heated into hot water and then is discharged from the hot water outlet pipe, and smoke generated after combustion of the gas is discharged from the smoke discharge pipe fitting.

But the flue gas of following the exhaust of flue gas pipe fitting has the heat, and exhaust gas temperature is between 110 degrees centigrade to 270 degrees centigrade, and the direct emission of flue gas leads to the heat to cause the waste, is unfavorable for the sustainable use of resource.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a gas heater with cold water function is preheated to flue gas has the heat that utilizes in the flue gas and preheats cold water to save the effect of the required energy consumption in the cold water heating process.

The above technical purpose of the present invention can be achieved by the following technical solutions: the utility model provides a gas heater with cold water function is preheated to flue gas, includes the gas heater body, it advances pipe, hot water exit tube, air to advance pipe and fume emission pipe fitting to be connected with cold water on the gas heater body, the fume emission pipe fitting includes that one end is installed at the bend tobacco pipe that gas heater body top and the other end extend along the horizontal direction along vertical direction, connects the straight way tobacco pipe on the bend tobacco pipe, straight way tobacco pipe week side is provided with and is the spirally wound heat exchange tube, urban water supply pipe network and the other end are advanced the one end that the pipe kept away from the gas heater body with cold water to the one end of heat exchange tube, the week side of heat exchange tube is provided with the heat preservation subassembly that reduces the heat of straight way tobacco pipe and scatters.

The utility model discloses a further set up to: the spiral groove that is the heliciform extension is seted up to the week side of straight way tobacco pipe, the part of the inner wall relative spiral groove of straight way tobacco pipe is inside to be projected, the heat exchange tube winding sets up in the week side of straight way tobacco pipe and imbeds in spiral groove.

The utility model discloses a further set up to: the heat insulation component comprises an asbestos layer and a binding belt, wherein the asbestos layer is wrapped on the periphery of the straight flue gas pipe and covers the heat exchange pipe, and the binding belt is bound at two ends of the asbestos layer to realize fixation; and two ends of the heat exchange tube are positioned outside the asbestos layer.

The utility model discloses a further set up to: the heat exchange tube adopts a high-temperature resistant metal hose.

The utility model discloses a further set up to: the end, far away from the bend tobacco pipe, of the straight tobacco pipe extends downwards in an inclined mode towards the direction far away from the bend tobacco pipe, the inclined angle is 0-6 degrees, the end, far away from the bend tobacco pipe, of the straight tobacco pipe is in a closed shape, and smoke outlet holes distributed in a circumferential array mode are formed in the circumferential side of the end, far away from the bend tobacco pipe, of the straight tobacco pipe.

To sum up, the utility model discloses following beneficial effect has:

1. the spirally wound heat exchange tubes are arranged on the periphery of the straight flue pipe, one end of each heat exchange tube is connected with the urban water supply pipe network, and the other end of each heat exchange tube and one end of the cold water inlet pipe, which is far away from the gas water heater body, so that cold water entering the cold water inlet pipe can be preheated by using waste heat of flue gas, energy consumption required in the cold water heating process is saved, and the energy-saving effect is achieved; meanwhile, the heat dissipation is reduced by the arrangement piece of the heat insulation component;

2. the spiral groove which extends spirally is formed in the peripheral side of the straight flue pipe, the heat exchange tube is wound on the peripheral side of the straight flue pipe and embedded in the spiral groove, and the heat exchange area between the heat exchange tube and the straight flue pipe can be increased at the moment, so that the preheating effect of cold water in the heat exchange tube is improved;

3. the heat preservation subassembly includes asbestos layer, ribbon, and the asbestos layer has good thermal-insulated heat preservation effect, can realize reducing thermal dissipation.

Drawings

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

fig. 2 is a partial enlarged view at a in fig. 1.

Reference numerals: 1. a gas water heater body; 2. a cold water inlet pipe; 3. a hot water outlet pipe; 4. an air inlet pipe; 5. a gas inlet pipe; 6. a flue gas discharge pipe fitting; 61. a bend smoke tube; 62. a straight flue pipe; 621. a spiral groove; 622. a smoke outlet; 7. a heat exchange pipe; 8. a heat preservation assembly; 81. an asbestos layer; 82. and (6) binding the belt.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Example (b): a gas water heater with a function of preheating cold water by flue gas is shown in figure 1 and comprises a gas water heater body 1, wherein a cold water inlet pipe 2, a hot water outlet pipe 3, an air inlet pipe 4, a gas inlet pipe 5 and a flue gas discharge pipe 6 are connected to the gas water heater body 1.

As shown in fig. 1 and 2, the flue gas discharging pipe 6 includes a curved flue pipe 61 having one end installed on the top of the gas water heater body 1 in the vertical direction and the other end extending in the horizontal direction, and a straight flue pipe 62 connected to the curved flue pipe 61. The periphery of the straight flue gas pipe 62 is provided with a spirally wound heat exchange pipe 7, one end of the heat exchange pipe 7 is connected with a city water supply pipe network, and the other end of the heat exchange pipe 7 and one end of the cold water inlet pipe 2, which is far away from the gas water heater body 1.

As shown in fig. 1 and fig. 2, a spiral groove 621 extending in a spiral shape is formed on the periphery of the straight flue pipe 62, the inner wall of the straight flue pipe 62 protrudes inward relative to the spiral groove 621, and the heat exchange pipe 7 is wound around the periphery of the straight flue pipe 62 and embedded in the spiral groove 621. The heat exchange tube 7 is made of a high-temperature resistant metal hose.

As shown in fig. 1, one end of the straight flue pipe 62 away from the curved flue pipe 61 extends downwards in an inclined manner with an inclination angle of 0-6 degrees, in this embodiment, the inclination angle is 3 degrees, the end of the straight flue pipe 62 away from the curved flue pipe 61 is closed, and the circumference of one end of the straight flue pipe 62 away from the curved flue pipe 61 is provided with smoke outlets 622 distributed in a circumferential array.

As shown in fig. 1 and fig. 2, a heat insulation component 8 for reducing heat loss of the straight flue pipe 62 is disposed on the periphery of the heat exchange pipe 7. The heat preservation assembly 8 comprises an asbestos layer 81 which is wrapped on the periphery of the straight flue pipe 62 and covers the heat exchange pipe 7, and a binding belt 82 which is bound at two ends of the asbestos layer 81 to realize fixation. The two ends of the heat exchange tube 7 are positioned outside the asbestos layer 81.

The implementation effect is as follows: the spirally wound heat exchange tubes 7 are arranged on the periphery of the straight flue gas tube 62, one end of each heat exchange tube 7 is connected with the urban water supply pipe network, and the other end of each heat exchange tube 7 and one end of the cold water inlet tube 2, which is far away from the gas water heater body 1, so that cold water entering the cold water inlet tube 2 can be preheated by using waste heat of flue gas, energy consumption required in the cold water heating process is saved, and the energy-saving effect is achieved; meanwhile, the heat dissipation is reduced by the arrangement part of the heat insulation component 8.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

Claims

1. The utility model provides a gas heater with cold water function is preheated to flue gas, includes gas heater body (1), it advances pipe (2), hot water exit tube (3), air to advance pipe (4), gas advance pipe (5) and fume emission pipe fitting (6) to be connected with cold water on gas heater body (1), its characterized in that: flue gas discharge pipe fitting (6) include that one end is installed at gas heater body (1) top and the other end along bend tobacco pipe (61) that the horizontal direction extends, straight way tobacco pipe (62) of connection on bend tobacco pipe (61) along vertical direction, straight way tobacco pipe (62) week side is provided with and is heliciform winding heat exchange tube (7), the one end of heat exchange tube (7) is connected city water supply pipe network and the other end and is advanced pipe (2) with cold water and keep away from the one end of gas heater body (1), week side of heat exchange tube (7) is provided with heat preservation subassembly (8) that the heat that reduces straight way tobacco pipe (62) scatters and disappears.

2. The gas water heater with the function of preheating cold water by using flue gas as claimed in claim 1, is characterized in that: spiral grooves (621) extending spirally are formed in the peripheral side of the straight flue pipe (62), the inner wall of the straight flue pipe (62) protrudes inwards relative to the spiral grooves (621), and the heat exchange pipe (7) is wound on the peripheral side of the straight flue pipe (62) and embedded into the spiral grooves (621).

3. The gas water heater with the function of preheating cold water by using flue gas as claimed in claim 2, characterized in that: the heat preservation assembly (8) comprises an asbestos layer (81) which is wrapped on the peripheral side of the straight flue smoke pipe (62) and covers the heat exchange pipe (7), and binding belts (82) which are arranged at two ends of the asbestos layer (81) in a binding mode to realize fixation; and two ends of the heat exchange tube (7) are positioned outside the asbestos layer (81).

4. The gas water heater with the function of preheating cold water by using flue gas as claimed in claim 2, characterized in that: the heat exchange tube (7) is made of a high-temperature-resistant metal hose.

5. The gas water heater with the function of preheating cold water by using flue gas as claimed in claim 1, is characterized in that: one end of the straight flue pipe (62) far away from the bent flue pipe (61) inclines downwards towards the direction far away from the bent flue pipe (61) and extends at an inclination angle of 0-6 degrees, the end part of the straight flue pipe (62) far away from the end of the bent flue pipe (61) is in a closed shape, and smoke outlet holes (622) distributed in a circumferential array mode are formed in the circumferential side of the end of the straight flue pipe (62) far away from the bent flue pipe (61).