CN217423641U

CN217423641U - Upper pumping type water heater

Info

Publication number: CN217423641U
Application number: CN202220337691.4U
Authority: CN
Inventors: 艾穗江; 吴宸萱; 邓海燕
Original assignee: Guangdong Macro Gas Appliance Co Ltd
Current assignee: Guangdong Macro Gas Appliance Co Ltd
Priority date: 2022-02-18
Filing date: 2022-02-18
Publication date: 2022-09-13
Anticipated expiration: 2032-02-18

Abstract

The utility model discloses an upward pumping type water heater, include: the low-nitrogen combustor, the heat exchanger and the horizontal fan are sequentially arranged in the shell from bottom to top, and the fuel gas distribution device is connected with the low-nitrogen combustor; it is characterized in that the horizontal fan comprises: the exhaust hood is connected with the heat exchanger, the volute is communicated with the exhaust hood, and the motor is arranged on the volute; the volute is provided with a smoke exhaust pipe for exhausting smoke, and the top wall of the shell is provided with a convex hull matched with the fan. The horizontal fan is arranged, so that the overall height of the fan is greatly reduced, the fan is positioned on the upper portion of the water heater, the top wall of the shell of the water heater is provided with a convex hull matched with the horizontal fan to reduce the volume of the water heater, negative pressure is formed inside the fan during working, smoke in the system is forcibly discharged, and resonance is not easy to generate in comparison with a forced-blowing low-nitrogen gas water heater.

Description

Upper pumping type water heater

Technical Field

The utility model relates to a gas hot water system technical field especially relates to an upward take out type water heater.

Background

The existing common gas water heater has pollutant emission in different degrees due to the limitation of a combustion structure, and the polluted gas mainly comprises CO and nitrogen oxide. And present ordinary low nitrogen gas heater is mostly strong drum-type gas heater, and strong drum-type low nitrogen gas heater arouses resonance phenomenon easily, and the volume is great, and space utilization is low.

Disclosure of Invention

To the problem that exists among the prior art, the utility model aims to provide a low nitrogen, small type water heater of taking out on.

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

a water heater of the updraft type comprising: the low-nitrogen combustor, the heat exchanger and the horizontal fan are sequentially arranged in the shell from bottom to top, and the fuel gas distribution device is connected with the low-nitrogen combustor; it is characterized in that the horizontal fan comprises: the exhaust hood is connected with the heat exchanger, the volute is communicated with the exhaust hood, and the motor is arranged on the volute; the volute is provided with a smoke exhaust pipe for exhausting smoke, and the top wall of the shell is provided with a convex hull matched with the fan.

More preferably, the top of the heat exchanger is provided with a flange extending outwards, the bottom of the smoke collecting hood is provided with a folded edge matched with the flange, and the flange and the folded edge are provided with fixing holes matched with each other.

More preferably, the motor is mounted on the scroll casing through mounting legs.

More preferably, the low-nitrogen combustor includes: the low-nitrogen combustion single chip comprises a shell and a plurality of low-nitrogen combustion single chips arranged in the shell; the shell comprises a frame body with an upper opening, a lower opening and a side opening, a secondary air baffle plate arranged on the lower opening of the frame body, an ignition needle mounting plate and a single piece mounting plate arranged on the side opening of the frame body.

More preferably, be equipped with in the casing and be used for the installation the monolithic support of low nitrogen burning monolithic, a plurality of ventilation holes have been laid on the secondary air baffle be equipped with on the monolithic mounting panel with the air inlet complex opening of low nitrogen burning monolithic.

More preferably, the low nitrogen combustion monolithic sheet includes: an air inlet, a mixing cavity and a combustion port; the gas inlet comprises a concentrated gas inlet and a light gas inlet; the burner port comprises a thick burner port communicated with the thick fuel gas inlet and a thin burner port communicated with the thin fuel gas inlet.

More preferably, the gas distribution device includes: the square pipe main body is provided with at least two mutually independent cavities, a gas inlet is formed in one cavity, and control valve installation cavities are formed in the other cavities; the gas entry with the installation opening of control valve installation cavity is located on two adjacent sides of square pipe main part, each control valve installation cavity with communicate through gas distribution connecting hole between the gas entry, gas distribution connecting hole is vertical setting, the degree of depth direction perpendicular to of gas distribution connecting hole the degree of depth direction of control valve installation cavity to make the control valve installation cavity communicates with first cavity through the through-hole that forms on the connecting hole lateral wall.

More preferably, the chambers comprise a first chamber, a second chamber and a third chamber, and the second chamber and the third chamber are positioned at two sides of the first chamber; the gas inlet is arranged on the first cavity, and the two control valve installation cavities are respectively arranged on two sides of the gas inlet and are communicated with the gas inlet through the corresponding gas distribution connection holes.

More preferably, the heat exchanger is a heat exchanger having a single row of heat transfer tubes.

The utility model has the advantages that: (1) the horizontal fan is arranged, so that the overall height of the fan is greatly reduced, the fan is positioned on the upper portion of the water heater, the top wall of the shell of the water heater is provided with a convex hull matched with the horizontal fan to reduce the volume of the water heater, negative pressure is formed inside the fan during working, smoke in the system is forcibly discharged, and resonance is not easy to generate in comparison with a forced-blowing low-nitrogen gas water heater. (2) The heat exchanger is positioned below the horizontal fan, and the traditional two-row heat transfer pipe heat exchanger is changed into a one-row heat transfer pipe heat exchanger, so that the height of the heat exchanger is reduced, and the copper material consumption is reduced; the low-nitrogen burner is positioned below the heat exchanger, and a common burning single piece is changed into a thick and thin burning single piece, so that the width of the burner is shortened, and the NOx emission is reduced; the gas distributor accessible is changed the diameter of two rows of upper and lower nozzles and is adjusted the shade ratio, convenient operation, the utility model provides a gas heater can reduce the water heater size to 410 x 300 mm.

Drawings

Fig. 1 shows that the utility model provides a draw-up type water heater section view.

Fig. 2 shows an internal explosion diagram of the updraft water heater provided by the present invention.

Fig. 3 shows a structure diagram of a low-nitrogen combustion single chip of the upward pumping water heater provided by the present invention.

Fig. 4 is a cross-sectional view of the gas distributor of the updraft water heater according to the present invention.

Description of reference numerals:

1: horizontal fan, 2: heat exchanger, 3: low-nitrogen burner, 4: gas distribution device, 5: water pump, 6: a housing.

11: smoke collecting hood, 12: a volute, 13: motor, 14: smoke exhaust pipe, 31: frame body, 32: single row rack, 33: low nitrogen combustion monolith, 34: secondary air baffle, 35: ignition needle mounting plate, 41: gas distribution hole, 42: and a nozzle mounting hole.

Detailed Description

In the description of the present invention, it should be noted that, for the terms of orientation, there are terms such as "center", "transverse", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicating the orientation and positional relationship based on the orientation or positional relationship shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, but not for indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and should not be construed as limiting the specific scope of the present invention.

Furthermore, if the terms "first" and "second" are used for descriptive purposes only, they are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features. Thus, the definition of "a first" or "a second" feature may explicitly or implicitly include one or more of the features, and in the description of the invention, "at least" means one or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "assembled", "connected", and "connected", if any, are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; or may be a mechanical connection; the two elements can be directly connected or connected through an intermediate medium, and the two elements can be communicated with each other. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to specific situations.

In the present application, unless otherwise specified and limited, "a first feature" on "or" under "a second feature may include the first and second features being in direct contact, and may also include the first and second features not being in direct contact but being in contact through another feature therebetween. Also, the first feature being "above," "below," and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or simply an elevation which indicates a level of the first feature being higher than an elevation of the second feature. The first feature being "above", "below" and "beneath" the second feature includes the first feature being directly below or obliquely below the second feature, or merely means that the first feature is at a lower level than the second feature.

The following description will be further made in conjunction with the accompanying drawings of the specification, so that the technical solution and the advantages of the present invention are clearer and clearer. The embodiments described below are exemplary by referring to the drawings, are intended to explain the present invention, and should not be construed as limiting the present invention.

As shown in fig. 1 and 2, an up-draft water heater includes: the low-nitrogen combustor comprises a shell 6, a low-nitrogen combustor 3, a heat exchanger 2 and a horizontal fan 1 which are sequentially arranged in the shell from bottom to top, and a fuel gas distribution device 4 connected with the low-nitrogen combustor 3; it is characterized in that the horizontal fan 1 comprises: with collection petticoat pipe 11 that heat exchanger 2 is connected, with the spiral case 12 of collection petticoat pipe 11 intercommunication, and establish motor 13 on the spiral case 12, spiral case 12 is connected with and is used for discharging the flue gas the pipe 14 of discharging fume of shell 6 be equipped with on the roof of shell 6 with motor 13 complex convex closure, the convex closure is used for the holding thereby the volume of gas heater is reduced to the motor.

Specifically, the periphery of the top of the heat exchanger 2 is provided with a flange extending outwards, and the bottom of the smoke collecting cover 11 is correspondingly provided with a flange matched with the flange. The flanging and the folded edge are both provided with fixing holes. And after the flanging is attached to the folding edge, the fixing hole is penetrated by a screw to be fixedly connected. The motor 13 is mounted on the volute 12 by mounting legs. The fume collecting hood 11, the volute 12 and the motor 13 are horizontally arranged, the volute 12 is communicated with the top of the fume collecting hood 11, and the smoke exhaust pipe 14 is connected with the side part of the volute 12.

The low-nitrogen combustor 3 includes: a housing and a plurality of low-nitrogen-burning monoliths 33 disposed within the housing. The housing includes a frame 31 having an upper opening, a lower opening, and a side opening, a secondary air baffle 34 provided on the lower opening of the frame 31, an ignition needle mounting plate 35 and a single plate mounting plate provided on the side opening of the frame 31. Be equipped with in the casing and be used for the installation low nitrogen burning monolithic 33's monolithic support 32, a plurality of ventilation holes have been laid on secondary air baffle 34 be equipped with on the monolithic mounting panel with low nitrogen burning monolithic 33's air inlet complex opening. In this embodiment, the secondary air baffle 34 and the single-piece mounting plate are of a unitary construction, and it is apparent that in other embodiments, the housing may be of a unitary construction and is not limited to this embodiment.

As shown in fig. 3, the low-nitrogen combustion monolith 33 includes an intake port, a mixing chamber communicating with the intake port, and a combustion port communicating with the mixing chamber. Air and the gas that gas distributor provided get into the mixing chamber through the air inlet, mix in the mixing chamber after burning at the burner port. The low-nitrogen combustion single chip is provided with a thick flame inlet 331, a thin flame inlet 332, a thick combustion port communicated with the thick flame inlet 331, and a thin combustion port communicated with the thin flame inlet 332.

Further, as shown in fig. 4, the fuel gas distribution device supplies fuel gas to the low-nitrogen combustion monolith. The gas distribution device 4 comprises: the square pipe main body is provided with at least two mutually independent cavities, a gas inlet is formed in one cavity, and control valve installation cavities are formed in the other cavities; the gas entry with the installation opening of control valve installation cavity is located on two adjacent sides of square pipe main part, each control valve installation cavity with communicate through gas distribution connecting hole 41 between the gas entry, gas distribution connecting hole 41 is vertical setting, the degree of depth direction perpendicular to of gas distribution connecting hole 41 the degree of depth direction of control valve installation cavity to make the control valve installation cavity communicates with first cavity through the through-hole that forms on the connecting hole lateral wall. Specifically, the chambers include a first chamber, a second chamber and a third chamber, and the second chamber and the third chamber are located on two sides of the first chamber; the gas inlet is arranged on the first cavity, and the two control valve installation cavities are respectively arranged on two sides of the gas inlet and are respectively communicated with the gas inlet through the corresponding gas distribution connection holes 41.

The gas distribution holes 41 are longitudinally arranged, the depth direction of the gas distribution connection holes 41 is perpendicular to the depth direction of the control valve installation cavity, and the control valve installation cavity is communicated with the first cavity through holes formed in the side walls of the connection holes. The size and the position of the through holes in the side walls of the distribution connecting holes are adjusted by respectively adjusting the size and the position of the two fuel gas distribution connecting holes, so that the fuel gas is easily and uniformly distributed. Meanwhile, the gas distribution connecting hole is tightly connected with the first cavity and the control valve installation cavity, so that the square pipe is compact and small in structure.

More specifically, a nozzle mounting hole 42 is provided in each of the chambers. The nozzle mounting holes 42 include thick flame nozzle mounting holes and thin flame nozzle mounting holes provided on the respective chambers, the thick flame nozzle mounting holes are arranged in a row, the thin flame nozzle mounting holes are arranged in a row, and the two rows of nozzle mounting holes are parallel to each other. The thick flame nozzle mounting hole sites and the light flame nozzle mounting hole sites correspond to each other one by one and are arranged at equal intervals, and the thick flame nozzle mounting hole sites and the light flame nozzle mounting hole sites on the chambers are the same in number or different in number.

Further, the heat exchanger 2 is a heat exchanger having a single row of heat transfer tubes. The height of the heat exchanger is reduced, and the consumption of copper materials is reduced.

It will be understood by those skilled in the art from the foregoing description of the structure and principles that the present invention is not limited to the specific embodiments described above, and that modifications and substitutions based on the known art are intended to fall within the scope of the invention, which is defined by the claims and their equivalents. The details not described in the detailed description are prior art or common general knowledge.

Claims

1. A water heater of the updraft type comprising: the low-nitrogen combustor, the heat exchanger and the horizontal fan are sequentially arranged in the shell from bottom to top, and the fuel gas distribution device is connected with the low-nitrogen combustor; characterized in that, the horizontal fan includes: the exhaust hood is connected with the heat exchanger, the volute is communicated with the exhaust hood, and the motor is arranged on the volute; a smoke exhaust pipe used for exhausting smoke is arranged on the volute, and a convex hull matched with the fan is arranged on the top wall of the shell.

2. A top-pumping water heater according to claim 1, wherein the top of the heat exchanger is provided with an outward extending flange, the bottom of the fume collecting hood is provided with a folded edge matched with the flange, and the flange and the folded edge are provided with mutually matched fixing holes.

3. A pump-up water heater according to claim 1 wherein the motor is mounted to the volute by mounting legs.

4. A pump-up water heater according to claim 1 wherein the low nitrogen burner comprises: the low-nitrogen combustion single piece comprises a shell and a plurality of low-nitrogen combustion single pieces arranged in the shell; the shell comprises a frame body with an upper opening, a lower opening and a side opening, a secondary air baffle plate arranged on the lower opening of the frame body, an ignition needle mounting plate and a single piece mounting plate arranged on the side opening of the frame body.

5. The upward pumping water heater according to claim 4, wherein a single bracket for mounting the low nitrogen combustion single piece is arranged in the housing, a plurality of vent holes are distributed on the secondary air baffle, and an opening matched with the air inlet of the low nitrogen combustion single piece is arranged on the single mounting plate.

6. A water heater of the updraft type according to claim 4, wherein said low nitrogen combustion monolith comprises: an air inlet, a mixing cavity and a combustion port; the gas inlet comprises a concentrated gas inlet and a light gas inlet; the burner ports comprise a concentrated burner port communicated with the concentrated fuel gas inlet and a light burner port communicated with the light fuel gas inlet.

7. A pump-up water heater according to claim 1 wherein the gas distribution means comprises: the square pipe main body is provided with at least two mutually independent cavities, a gas inlet is formed in one cavity, and control valve installation cavities are formed in the other cavities; the gas entry with the installation opening of control valve installation cavity is located on two adjacent sides of square pipe main part, each control valve installation cavity with communicate through gas distribution connecting hole between the gas entry, gas distribution connecting hole is vertical setting, the degree of depth direction perpendicular to of gas distribution connecting hole the degree of depth direction of control valve installation cavity to make the control valve installation cavity communicates with first cavity through the through-hole that forms on the connecting hole lateral wall.

8. A pump-up water heater according to claim 7 wherein the chamber comprises a first chamber, a second chamber and a third chamber, the second chamber and the third chamber being located on opposite sides of the first chamber; the gas inlet is arranged on the first cavity, and the two control valve installation cavities are respectively arranged on two sides of the gas inlet and are respectively communicated with the gas inlet through the corresponding gas distribution connection holes.

9. A pump-up water heater according to claim 1 wherein the heat exchanger is a heat exchanger having a single row of heat transfer tubes.