Horizontal low-nitrogen efficient condensing boiler

Abstract

The utility model provides a horizontal low-nitrogen high-efficiency condensing boiler, which relates to the technical field of boilers, aims to solve the problems of low heat conduction efficiency, higher temperature of discharged flue gas and poorer heat efficiency of the conventional condensing boiler, and comprises a main body, a heat exchanger A is arranged on the main body; a safety valve is arranged on the left top of the body; a water outlet is formed in the right side of the main body; a middle connecting pipe seat is arranged on the right side of the body bottom; and a gas collecting tank is arranged on the water outlet. The heat exchanger A transmits heat of high-temperature flue gas to water, the flue gas temperature is reduced to 35 DEG C from 150-200 DEG C of a conventional boiler, the heat efficiency is greatly improved and reaches up to 105%, the heat transfer coefficient is high by recovering flue gas waste heat, reducing fuel requirements, reducing heat resistance, ensuring rapid heat transfer and adopting the stainless steel fin type heat exchanger, and the heat exchange efficiency is high. The fin type heat exchanger enlarges the heat exchange area, promotes condensation latent heat recovery, optimizes thermodynamic circulation and improves the convective heat transfer coefficient, the efficient heat transfer capacity of the fin type heat exchanger allows the heat exchange area to be reduced, and the size of the condensation boiler is smaller.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of boiler, more specifically, it relates to a horizontal low-nitrogen efficient condensing boiler. BACKGROUND

[0002] The horizontal low-nitrogen efficient condensing boiler is a heating device combining advanced combustion technology, energy-saving design and environmental protection characteristics, and is widely used in family, commercial and industrial fields.

[0003] Based on the prior art, it is found that the existing condensing boiler has low heat transfer efficiency, high exhaust gas temperature and low thermal efficiency when in use. UTILITY MODEL CONTENTS

[0004] In order to solve the above technical problems, the utility model provides a horizontal low-nitrogen efficient condensing boiler to solve the problems of low heat transfer efficiency, high exhaust gas temperature and low thermal efficiency of the existing condensing boiler in use.

[0005] The utility model discloses a horizontal low-nitrogen efficient condensing boiler, which is achieved by the following specific technical means:

[0006] A horizontal low-nitrogen efficient condensing boiler, comprising a main body; the main body is a condensing boiler body; a heat exchanger A is arranged on the main body; a base is arranged at the bottom of the main body; a stop valve is arranged at the right side of the main body; a finned heat exchanger is arranged in the main body; a blower is arranged at the left side of the main body; the blower is connected with a burner; the burner is arranged in the main body; a safety valve is arranged at the left top of the main body; a water outlet is arranged at the right top of the main body; an intermediate connecting pipe seat is arranged at the right bottom of the main body; and a gas collecting tank is arranged on the water outlet.

[0007] Further, the main body is of split type design; an electric control device is arranged on the main body, and a condenser is arranged at the tail of the main body.

[0008] Further, the heat exchanger A is connected with the intermediate connecting pipe seat; and the heat exchanger A is connected with the stop valve.

[0009] Further, a Y-shaped filter is arranged at the right side of the stop valve; and a ball valve A is arranged at the bottom of the stop valve.

[0010] Further, a water flow switch is arranged on the water outlet; a ball valve B is arranged at the top of the water outlet; and a bimetallic thermometer is arranged on the water outlet.

[0011] Further, a pressure gauge is arranged on the water outlet; and a three-way valve is arranged at the bottom side of the pressure gauge.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] 1, in the device, set up heat exchanger A and fin heat exchanger, heat exchanger A passes the heat of high temperature flue gas to water, makes flue gas temperature from conventional boiler's 150~200 DEG C drops to 35 DEG C, greatly improves thermal efficiency, thermal efficiency is as high as 105%, comprehensive operation is more than ordinary boiler 10%, through recycling flue gas waste heat, reduce fuel demand, reduce thermal resistance, ensure that heat is rapidly transmitted, adopt stainless steel fin heat exchanger, heat transfer coefficient is high, fin heat exchanger passes through expansion heat exchange area, promotes latent heat recovery of condensation and optimization thermodynamics cycle, when flue gas flows through fin, the degree of turbulence improves, the thickness of boundary layer thins, thereby enhancing the convective heat transfer coefficient, the high efficient heat transfer capacity of fin heat exchanger allows to reduce heat exchange area, makes condensing boiler smaller, fin structure is integrated with other components (such as combustion chamber, water pump) conveniently, simplifies system layout, reduces installation cost;Waterway four return design, heat exchange is more efficient, small and beautiful, the volume is 1 / 2 of traditional boiler, the main body inside each area is module type setting, is convenient for installation replacement, operation is more convenient. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the main view structural schematic drawing of the utility model.

[0015] Figure 2 It is the side view structural schematic drawing of the utility model.

[0016] Figure 3 It is the overhead structure schematic drawing of the utility model.

[0017] Figure 4 It is the main body inside structure schematic drawing of the utility model.

[0018] Figure 5 It is the main body overhead structure schematic drawing of the utility model.

[0019] In the drawing, the corresponding relationship of component name and drawing number is as follows:

[0020] 1, main body;101, heat exchanger A;102, base;103, stop valve;1031, Y type filter;1032, ball valve A;104, fin heat exchanger;2, air blower;201, combustor;3, safety valve;4, water outlet;401, water flow switch;402, ball valve B;403, bimetallic thermometer;404, pressure gauge;405, three-way valve;5, intermediate connecting pipe base;6, gas collecting tank. DETAILED DESCRIPTION

[0021] The embodiment of the utility model is further described in detail below in combination with the drawings and examples.

[0022] Embodiment:

[0023] As shown in the accompanying drawings Figure 1 to the accompanying drawings Figure 5 :

[0024] The utility model provides a horizontal low nitrogen high -efficient condensing boiler, including main body 1, main body 1 is condensing boiler body, main body 1 is provided with heat exchanger A101, main body 1 bottom is equipped with base 102, main body 1 right side is provided with stop valve 103, the stop valve 103 here passes through opening or closing valve, controls the flow of medium, main body 1 inside is provided with fin heat exchanger 104, the fin heat exchanger 104 here high heat transfer coefficient, fin heat exchanger 104 passes through expansion heat exchange area, promotes condensing latent heat recovery and optimization thermodynamics cycle, when the flue gas flows through the fin, the turbulence degree improves, the boundary layer thickness reduces, thereby promotes the heat transfer coefficient of convection, the efficient heat transfer capacity of fin heat exchanger 104 allows to reduce heat exchange area, makes condensing boiler volume smaller, fin structure is convenient with other components (such as combustion chamber, water pump) integration, simplifies system layout, reduces installation cost, main body 1 left side is provided with air blower 2, air blower 2 is connected with combustor 201, combustor 201 is in main body 1 inside, the air blower 2 here is used to cooperate with combustor 201 and provides combustion, main body 1 top left side is provided with safety valve 3, the safety valve 3 here is the vital safety protection device in condensing boiler, its core function is to prevent the equipment damage, explosion or personnel casualty caused by the overpressure or overtemperature of boiler, by automatic release system's excessive pressure or temperature, ensure that the boiler is in the safe range operation, main body 1 top left side is provided with water outlet 4, the water outlet 4 here is used to discharge flue gas, main body 1 bottom right side is provided with intermediate connecting pipe seat 5, water outlet 4 is provided with gas collecting tank 6, gas collecting tank 6 is equipped with automatic exhaust valve, automatically releases gas, prevents excessive pressure, in addition, gas collecting tank 6 also has the effect of buffering and pressure stabilization, when system pressure fluctuates, stores liquid, stabilizes pressure.

[0025] Among them, main body 1 is split type design, main body 1 is provided with electric control device, main body 1 tail is provided with condenser, the main body 1 here is split type design, more convenient for transportation installation.

[0026] Among them, heat exchanger A101 is provided with four groups, heat exchanger A101 is connected with intermediate connecting pipe seat 5, heat exchanger A101 is connected with stop valve 103, the heat exchanger A101 here passes high-temperature flue gas heat to water, makes flue gas temperature from conventional boiler's 150~200 DEG C drop to 35 DEG C, substantially improves thermal efficiency, thermal efficiency is as high as 105%, comprehensive operation is more than ordinary boiler 10%, by recycling flue gas waste heat, reduces fuel demand, reduces thermal resistance, ensures heat transfer quickly.

[0027] The Y-shaped filter 1031 is a key protection device in the system, and mainly functions to intercept impurities in fluid (water or gas), ensure safe and efficient operation of the boiler and the auxiliary equipment, and avoid efficiency reduction or equipment damage caused by abrasion, blockage or fouling.

[0028] The water outlet 4 is provided with a water flow switch 401, a ball valve B 402 is arranged on the top of the water outlet 4, and a bimetallic thermometer 403 is arranged on the water outlet 4.

[0029] The water outlet 4 is provided with a pressure gauge 404, and a three-way valve 405 is arranged on the bottom side of the pressure gauge 404.

[0030] The specific use mode and effect of the embodiment are as follows:

[0031] In the device, the medium enters the main body 1 through the stop valve 103, and the medium is heated through the cooperation of the air blower 2 and the burner 201, and the water circuit of the heat exchanger A 101 is designed to be four return, so that the heat exchange is more efficient, and the device is small and beautiful. The heat exchanger A 101 transmits the heat of high-temperature flue gas to water or air, so that the flue gas temperature is reduced from 150-200 DEG C of a conventional boiler to 35 DEG C, the heat efficiency is greatly improved, and the heat efficiency is as high as 105%. The finned heat exchanger 104 made of stainless steel has high heat transfer coefficient. The finned heat exchanger 104 expands the heat exchange area, promotes condensation latent heat recovery and optimizes thermodynamic cycle. When the flue gas flows through the fins, the turbulence degree is improved, and the boundary layer thickness is reduced, so that the convective heat transfer coefficient is improved. The high-efficiency heat transfer capacity of the finned heat exchanger 104 allows the heat exchange area to be reduced, so that the condensing boiler is smaller in size. The volume of the main body 1 is half of that of a conventional boiler. The internal regions of the main body 1 are modularly arranged, so that the device is convenient to install and replace, and the operation is more convenient. The cooled flue gas is discharged through the water outlet 4 at the top.

Claims

1. A horizontal low-nitrogen high-efficiency condensing boiler, characterized in that: Including the main body (1); The main body (1) is a condensing boiler body; The main body (1) is provided with heat exchanger A (101); The main body (1) bottom is equipped with base (102); The main body (1) right side is provided with stop valve (103); The main body (1) is provided with fin heat exchanger (104) inside; The main body (1) left side is provided with air blower (2); The air blower (2) is connected with burner (201); The burner (201) is in the main body (1) inside; The main body (1) top left side is provided with safety valve (3); The main body (1) top right side is provided with water outlet (4); The main body (1) bottom right side is provided with intermediate connecting pipe base (5); The water outlet (4) is provided with gas collection tank (6).

2. A horizontal low-nitrogen high-efficiency condensing boiler according to claim 1, characterized in that: The main body (1) is split design; The main body (1) is provided with electric control device; The main body (1) tail is provided with condenser.

3. A horizontal low-nitrogen high-efficiency condensing boiler according to claim 1, characterized in that: The heat exchanger A (101) is provided with four groups; The heat exchanger A (101) is connected with intermediate connecting pipe base (5); The heat exchanger A (101) is connected with stop valve (103).

4. A horizontal low-nitrogen high-efficiency condensing boiler according to claim 1, characterized in that: The stop valve (103) right side is provided with Y type filter (1031); The stop valve (103) bottom is provided with ball valve A (1032).

5. A horizontal low nitrogen high efficiency condensing boiler according to claim 1, characterized in that: The water outlet (4) is provided with water flow switch (401); The water outlet (4) top is provided with ball valve B (402); The water outlet (4) is provided with bimetallic thermometer (403).

6. A horizontal low nitrogen high efficiency condensing boiler according to claim 1, characterized in that: The water outlet (4) is provided with pressure gauge (404); The pressure gauge (404) bottom side edge is provided with three-way valve (405).

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