CN221098606U - Gas heater fire row sheet with uniform outflow speed - Google Patents

Abstract

The utility model relates to a fire row plate of a gas water heater with uniform outflow speed, comprising a gas spray hole, an ejection port, an ejection chamber, a reflux chamber, an outflow chamber, a resistance column, a side fire hole and a top fire hole; the gas spray hole is directly opposite to the ejection port, and the ejection chamber, the reflux chamber and the outflow chamber are sequentially connected; the resistance column is discretely arranged at the connection position between the reflux chamber and the outflow chamber; the top fire hole is arranged on the front of the outflow chamber, and the side fire holes are arranged on both sides; the cross section of the resistance column is triangular, and the discrete arrangement spacing decreases from left to right; the top fire hole is rectangular, with a uniform length and a width that decreases from left to right. The utility model can achieve uniform outflow speed of the top fire hole of the fire row plate by changing the width of the top fire hole and adding a resistance column, thereby improving the consistency of the flame height in the combustion chamber of the gas water heater.

Description

A gas water heater fire plate with uniform outflow velocity

Technical Field

The utility model relates to the field of gas water heaters, in particular to a fire row piece of a gas water heater with uniform outflow speed.

Background technique

A gas water heater is a gas appliance that uses gas as fuel, burns mixed air and gas in a combustion chamber through a burner to produce high-temperature flue gas, and then exchanges heat with cold water in a heat exchanger to prepare hot water. It is widely used in bathrooms, kitchens and other places where hot water is needed because of its convenience, fast hot water production, high safety, and easy installation. As an important component of a gas water heater burner, the fire plate plays an important role in the combustion efficiency and stability of the water heater.

The existing burner fire row plate air flow inlet is on one side, the internal flow channel of the fire row plate is curved, and the backflow resistance is large, which makes the internal pressure distribution of the fire row plate uneven and the outflow velocity of the fire hole different. The gas flow rate is high on one side and low on the other side, resulting in uneven flame height in the combustion chamber, affecting the subsequent heat transfer effect, and ultimately causing problems such as low thermal efficiency of the gas water heater, poor flame stability, and excessive flue gas emission pollutants.

Utility Model Content

In order to solve the above problems existing in the prior art, the utility model provides a fire row plate of a gas water heater with uniform outflow velocity. By improving the structure of the fire row plate, the uniformity of the airflow at the fire row plate outlet is improved, and the consistency of the flame height in the combustion chamber is maintained to the maximum extent.

The utility model is realized by the following technical solutions:

A fire strip for a gas water heater with uniform outflow velocity, characterized in that it comprises a gas spray hole, an ejection port, an ejection cavity, a reflux cavity, an outflow cavity, a resistance column, a side fire hole and a top fire hole; the gas spray hole is directly opposite to the ejection port, and the ejection cavity, the reflux cavity and the outflow cavity are sequentially connected; the resistance columns are discretely arranged at the connecting position between the reflux cavity and the outflow cavity; the top fire hole is arranged on the front of the outflow cavity, and the side fire holes are arranged on both sides.

The cross section of the resistance column is triangular, and the discrete arrangement spacing decreases from left to right.

The top fire hole is rectangular, has the same length, and its width decreases from left to right.

The utility model has the advantages that: the fire row plate is provided with a triangular resistance column inside and cooperates with top fire holes of different widths, so that the outflow speed of the fire holes of the fire row plate is more uniform, thereby ensuring the consistency of the flame height in the combustion chamber of the gas water heater and improving the flame stability and thermal efficiency of the gas water heater.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram of the three-dimensional structure of a gas water heater fire row with uniform outflow velocity provided by the utility model;

FIG2 is a schematic cross-sectional view of a fire row plate of a gas water heater with uniform outflow velocity shown in FIG1 ;

FIG3 is a schematic diagram of the arrangement of the top fire holes of the fire row plate according to the utility model;

In the figure: 1 is the gas spray hole, 2 is the injection port, 3 is the injection cavity, 4 is the return cavity, 5 is the outflow cavity, 6 is the resistance column, 7 is the side fire hole, and 8 is the top fire hole.

Detailed ways

The utility model is described in detail below with reference to the accompanying drawings:

As shown in Figures 1 and 2, a fire block of a gas water heater with uniform outflow speed is characterized in that it includes a gas nozzle 1, an injection port 2, an injection chamber 3, a reflux chamber 4, an outflow chamber 5, a resistance column 6, a side fire hole 7 and a top fire hole 8; the gas nozzle 1 is directly opposite to the injection port 2, and the injection chamber 3, the reflux chamber 4 and the outflow chamber 5 are connected in sequence; the resistance column 6 is discretely arranged at the connecting position of the reflux chamber 4 and the outflow chamber 5; the outflow chamber 5 is arranged with the top fire hole 8 on the front, and the side fire holes 7 on both sides.

As shown in FIG. 2 , the resistance column 6 has a triangular cross section, and the spacing between discrete arrangements decreases from left to right.

As shown in FIG. 3 , the top fire hole 8 is rectangular, has a uniform length, and has a width that decreases from left to right.

The gas is sprayed in from the gas nozzle 1, enters the injection chamber 3 through the injection port 2, and enters the outlet chamber 5 after passing through the reflux chamber 4. When the gas enters the outlet chamber 5, the speed and pressure of the gas are uneven, the pressure is low and the speed is low on the left side, and the pressure is high and the speed is high on the right side. Therefore, the resistance column 6 is arranged in front of the outlet chamber 5, and the spacing decreases from left to right, so that the pressure uniformity of the gas after passing through the resistance column 6 and entering the outlet chamber 5 is greatly improved. After further passing through the top fire holes 8 with different widths, the effect of uniform outlet speed is achieved. At the same time, in conjunction with the side fire holes 7, the flame height on the upper part of the fire row piece is more uniform, the flame is more stable, and the combustion effect is better.

In the description of this embodiment, it needs to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

Unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed", "coupled" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. A person skilled in the art should be able to understand the specific meanings of the above terms in the present utility model according to the specific circumstances.

The preferred implementation modes of the present invention are specifically described above, but the present invention is not limited to the embodiments. Those skilled in the art may make various equivalent modifications or substitutions without violating the spirit of the present invention, and these equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims (3)

1. The fire grate plate of the gas water heater with uniform outflow speed is characterized by comprising a gas spray hole, an injection port, an injection cavity, a reflux cavity, an outflow cavity, a resistance column, a side fire hole and a top fire hole; the gas jet hole is opposite to the injection port, and the injection cavity, the reflux cavity and the outflow cavity are sequentially communicated; the resistance columns are discretely arranged at the connection positions of the backflow cavity and the outflow cavity; the front surface of the outflow cavity is provided with a top fire hole, and the two sides of the outflow cavity are provided with side fire holes.

2. The fire grate plate for the gas water heater with uniform outflow speed according to claim 1, wherein the sections of the resistance columns are triangular and are arranged in a discrete manner, and the intervals are sequentially reduced from left to right.

3. The fire grate plate for the gas water heater with uniform outflow speed according to claim 1, wherein the fire jacking holes are rectangular, have consistent lengths and sequentially decrease in width from left to right.