Novel oxygen-enriched combustion device for gas-fired boiler

Abstract

The novel oxygen-enriched combustion device for the gas-fired boiler comprises a gas-fired boiler body, an automatic waste heat recovery assembly is arranged on the periphery of the gas-fired boiler body, a smoke exhaust assembly is arranged on one side of the automatic waste heat recovery assembly, and a sewage pool discharge-in assembly is arranged on one side of the smoke exhaust assembly and connected with the other side of the smoke exhaust assembly. According to the utility model, the prior art is improved, and in actual use, through the automatic waste heat recovery assembly, the problems that energy is wasted, the environment near a chimney is poor and pollutants exist in discharged tail gas if gas discharged by the boiler contains relatively high heat and the heat is not recovered in time are solved. And oxygen-enriched air is initially heated, combustion is facilitated, the temperature of the heat exchanger can be automatically controlled within a certain interval, and the heat exchange efficiency is high.

Description

Technical Field

[0001] The utility model relates to the field of oxygen-enriched combustion, and in particular to a novel oxygen-enriched combustion device for a gas boiler. Background Art

[0002] Gas boilers have the advantages of being clean and environmentally friendly, having high thermal efficiency, low labor and water and electricity costs, and long boiler service life, and have been widely popularized in my country. Gas boilers use air combustion, and the thermal efficiency of their burners has reached 99.5%. During the combustion process of the boiler, in order to make the material burn more thoroughly and reduce pollution emissions, it is usually necessary to introduce oxygen-enriched air into the boiler to assist combustion. The gas discharged by the boiler contains a high amount of heat. If this heat is not recovered in time, it will not only waste energy, but also cause a bad environment near the chimney, and there will be pollutants in the exhaust gas. At the same time, the initial temperature of the oxygen-enriched air is relatively low, so it is best to remove the waste heat before entering the boiler. Utility Model Content

[0003] (I) Technical solution

[0004] In order to solve the problems raised in the above background technology, the specific technical solutions adopted by the utility model are as follows:

[0005] A novel oxygen-enriched combustion device for a gas boiler comprises a gas boiler body, a waste heat automatic recovery component is arranged on the periphery of the gas boiler body, a flue gas discharge component is arranged on one side of the waste heat automatic recovery component, and a sewage pool discharge component is connected to one side of the flue gas discharge component;

[0006] In order to achieve the purpose of automatic waste heat recovery, the automatic waste heat recovery component includes a flue gas exhaust pipe, which is connected to the gas boiler body, one end of the flue gas exhaust pipe is connected to the heat exchanger shell, one end of the heat exchanger tube is connected to the oxygen-rich gas input pipe, the end of the heat exchanger tube away from the oxygen-rich gas input pipe is connected to the oxygen-rich gas gas transmission pipe, the oxygen-rich gas gas transmission pipe is connected to the gas boiler body, a flue gas exhaust flow valve is installed inside the flue gas exhaust pipe, an oxygen-rich gas inlet flow valve is installed inside the oxygen-rich gas input pipe, and a temperature sensor is provided inside the heat exchanger.

[0007] Furthermore, a support frame is provided on the periphery of the heat exchanger.

[0008] Furthermore, a PLC controller is installed on one side of the support frame, and the flue gas exhaust flow valve, the oxygen-enriched gas inlet flow valve and the temperature sensor are all electrically connected to the PLC controller.

[0009] Furthermore, in order to achieve the purpose of flue gas pretreatment, the flue gas exhaust component includes a flue gas output pipe, one end of the flue gas output pipe is connected to the shell side of the heat exchanger, and the end of the flue gas output pipe away from the shell side of the heat exchanger is connected to a pretreatment installation shell, and a filter mounting frame is provided inside the pretreatment installation shell. There are two filter mounting frames, one of which has an impurity filter screen installed inside, and the other filter mounting frame has an activated carbon filter plate installed inside.

[0010] Furthermore, a drawing plate is connected to the periphery of the filter mounting frame.

[0011] Furthermore, in order to achieve the purpose of discharging flue gas into a sewage pool, the sewage pool discharge component includes a sewage pool discharge pipe, which is connected to the pretreatment installation shell, a sewage pool discharge flow valve is installed inside the sewage pool discharge pipe, and a sewage pool body is provided on one side of the sewage pool discharge pipe.

[0012] Furthermore, the sewage pool discharge flow valve is electrically connected to the PLC controller.

[0013] (II) Beneficial effects

[0014] Compared with the prior art, the utility model provides a novel oxygen-enriched combustion device for a gas boiler, which has the following beneficial effects:

[0015] (1) The utility model has made improvements on the prior art. In actual use, the waste heat automatic recovery component solves the problem that the gas discharged from the boiler contains a high amount of heat. If this heat is not recovered in time, it will not only waste energy, but also cause a bad environment near the chimney and pollutants in the exhaust gas. In addition, the oxygen-enriched air is initially heated to facilitate combustion, and the temperature of the heat exchanger can be automatically controlled within a certain range, with high heat exchange efficiency.

[0016] (2) In actual use, by setting up a flue gas output pipe, the flue gas can enter the pretreatment installation shell through the flue gas output pipe, and first pass through the impurity filter in the filter installation frame to filter impurities, and then pass through the activated carbon filter plate to adsorb toxicity, thereby achieving the purpose of flue gas pretreatment. By setting up a pull-out plate, it is easy to replace and clean the impurity filter and activated carbon filter plate in the filter installation frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the main structure of a novel oxygen-enriched combustion device for a gas boiler according to an embodiment of the utility model;

[0018] Figure 2 It is a three-dimensional diagram of a novel oxygen-enriched combustion device for a gas boiler according to an embodiment of the utility model;

[0019] Figure 3It is a structural schematic diagram of a waste heat automatic recovery component in a novel oxygen-enriched combustion device for a gas boiler according to an embodiment of the utility model;

[0020] Figure 4 It is a structural schematic diagram of a flue gas exhaust component in a novel oxygen-enriched combustion device for a gas boiler according to an embodiment of the utility model.

[0021] In the figure:

[0022] 1. Gas boiler body; 2. Automatic waste heat recovery component; 201. Flue gas discharge pipe; 202. Heat exchanger; 203. Oxygen-enriched gas input pipe; 204. Temperature sensor; 205. Oxygen-enriched gas transmission pipe; 206. Flue gas discharge flow valve; 207. Oxygen-enriched gas inlet flow valve; 3. Flue gas discharge component; 301. Flue gas output pipe; 302. Pretreatment installation shell; 303. Filter installation frame; 304. Impurity filter; 305. Activated carbon filter plate; 4. Sewage pool discharge component; 401. Sewage pool discharge pipe; 402. Sewage pool discharge flow valve; 403. Sewage pool body; 5. PLC controller; 6. Pull-out plate; 7. Support frame. DETAILED DESCRIPTION

[0023] In order to further illustrate the technical solution of the present application, the present invention provides drawings, which are part of the disclosure of the present invention and are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, ordinary technicians in the field should be able to understand other possible implementation methods and advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0024] The present invention is now further described in conjunction with the accompanying drawings and specific implementation methods. Figure 1-Figure 4 As shown, a new oxygen-enriched combustion device for a gas boiler according to an embodiment of the utility model includes a gas boiler body 1, a waste heat automatic recovery component 2 is provided on the periphery of the gas boiler body 1, a smoke exhaust component 3 is provided on one side of the waste heat automatic recovery component 2, and a sewage pool discharge component 4 is connected to one side of the smoke exhaust component 3.

[0025] like Figure 1-4As shown, the automatic waste heat recovery component 2 includes a flue gas exhaust pipe 201, which is connected to the gas boiler body 1, one end of the flue gas exhaust pipe 201 is connected to the shell side of the heat exchanger 202, one end of the tube side of the heat exchanger 202 is connected to the oxygen-rich gas input pipe 203, and the end of the tube side of the heat exchanger 202 away from the oxygen-rich gas input pipe 203 is connected to the oxygen-rich gas gas transmission pipe 205, the oxygen-rich gas gas transmission pipe 205 is connected to the gas boiler body 1, a flue gas exhaust flow valve 206 is installed inside the flue gas exhaust pipe 201, an oxygen-rich gas inlet flow valve 207 is installed inside the oxygen-rich gas inlet pipe 203, a temperature sensor 204 is provided inside the heat exchanger 202, a support frame 7 is provided on the periphery of the heat exchanger 202, a PLC controller 5 is installed on one side of the support frame 7, and the flue gas exhaust flow valve 206, the oxygen-rich gas inlet flow valve 207 and the temperature sensor 204 are all electrically connected to the PLC controller 5.

[0026] Through the above technical solution, by setting the flue gas exhaust pipe 201, the flue gas generated in the gas boiler body 1 can enter the shell of the heat exchanger 202 through the flue gas exhaust pipe 201, and at the same time, the oxygen-rich gas input pipe 203 inputs the oxygen-rich gas into the tube of the heat exchanger 202. At this time, the oxygen-rich gas and the flue gas exchange cold and hot media, thereby achieving the purpose of preheating the oxygen-rich gas and recovering the heat of the flue gas. The temperature in the heat exchanger 202 is detected by the temperature sensor 204, so that the PLC controller 5 controls the flue gas exhaust flow valve 206 and the oxygen-rich gas inlet flow valve 207 through the temperature change in the heat exchanger 202 to control the flue gas exhaust amount and the oxygen-rich gas inlet amount, thereby achieving the purpose of automatically controlling the heat exchange temperature in a certain range. By setting the support frame 7, the purpose of facilitating the support of the heat exchanger 202 is achieved.

[0027] like Figure 1-4 As shown, the flue gas exhaust component 3 includes a flue gas output pipe 301, one end of the flue gas output pipe 301 is connected to the shell side of the heat exchanger 202, and the end of the flue gas output pipe 301 away from the shell side of the heat exchanger 202 is connected to a pretreatment installation shell 302, and a filter mounting frame 303 is arranged inside the pretreatment installation shell 302. There are two filter mounting frames 303, one of which is installed with an impurity filter screen 304, and the other filter mounting frame 303 is installed with an activated carbon filter plate 305, and the outer periphery of the filter mounting frame 303 is connected to a drawing plate 6.

[0028] Through the above technical solution, by setting up the smoke output pipe 301, the smoke can enter the pretreatment installation shell 302 through the smoke output pipe 301, firstly filter the impurities through the impurity filter 304 in the filter installation frame 303, and then adsorb the toxicity through the activated carbon filter plate 305, so as to achieve the purpose of smoke pretreatment. By setting the pulling plate 6, the purpose of facilitating the replacement and cleaning of the impurity filter 304 and the activated carbon filter plate 305 in the filter installation frame 303 is achieved.

[0029] like Figure 1-4 As shown, the sewage pool discharge component 4 includes a sewage pool discharge pipe 401, which is connected to the pretreatment installation shell 302. A sewage pool discharge flow valve 402 is installed inside the sewage pool discharge pipe 401. A sewage pool body 403 is provided on one side of the sewage pool discharge pipe 401. The sewage pool discharge flow valve 402 is electrically connected to the PLC controller 5.

[0030] Through the above technical solution, by setting the sewage pool discharge pipe 401, the pretreated flue gas can pass through the sewage pool discharge pipe 401 and enter the sewage pool body 403. By setting the sewage pool discharge flow valve 402, the purpose of facilitating the control of the flow rate of flue gas discharged into the sewage pool body 403 is achieved.

[0031] In order to facilitate understanding of the above technical solution of the present invention, the working principle or operation method of the present invention in the actual process is described in detail below.

[0032] Working principle: by setting the flue gas exhaust pipe 201, the flue gas generated in the gas boiler body 1 can enter the shell of the heat exchanger 202 through the flue gas exhaust pipe 201, and at the same time, the oxygen-rich gas input pipe 203 inputs the oxygen-rich gas into the tube of the heat exchanger 202. At this time, the oxygen-rich gas and the flue gas exchange cold and hot media, so as to achieve the purpose of preheating the oxygen-rich gas and recovering the heat of the flue gas. The temperature in the heat exchanger 202 is detected by the temperature sensor 204, so that the PLC controller 5 can control the flue gas exhaust flow valve 206 and the oxygen-rich gas inlet flow valve 207 to control the flue gas exhaust amount and the oxygen-rich gas inlet amount through the temperature change in the heat exchanger 202, so as to achieve the purpose of automatically controlling the heat exchange temperature in a certain range. By setting the support frame 7, the purpose of facilitating the support of the heat exchanger 202 is achieved;

[0033] By providing a smoke output pipe 301, smoke can enter the pre-treatment installation housing 302 through the smoke output pipe 301, and first pass through the impurity filter 304 in the filter installation frame 303 to filter impurities, and then pass through the activated carbon filter plate 305 to adsorb toxicity, thereby achieving the purpose of smoke pre-treatment. By providing a pull plate 6, it is easy to replace and clean the impurity filter 304 and the activated carbon filter plate 305 in the filter installation frame 303;

[0034] By setting up a sewage pool discharge pipe 401, the pretreated flue gas can enter the sewage pool body 403 through the sewage pool discharge pipe 401, and by setting up a sewage pool discharge flow valve 402, the purpose of facilitating the control of the flow of flue gas discharged into the sewage pool body 403 is achieved.

[0035] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated 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, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0036] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A novel oxygen-enriched combustion device for a gas boiler, characterized in that: The invention comprises a gas boiler body (1), wherein an automatic waste heat recovery component (2) is arranged on the periphery of the gas boiler body (1), a smoke exhaust component (3) is arranged on one side of the automatic waste heat recovery component (2), and a sewage pool discharge component (4) is connected to one side of the smoke exhaust component (3); The waste heat automatic recovery component (2) comprises a flue gas exhaust pipe (201), the flue gas exhaust pipe (201) being connected to the gas boiler body (1), one end of the flue gas exhaust pipe (201) being connected to the shell side of a heat exchanger (202), one end of the tube side of the heat exchanger (202) being connected to an oxygen-enriched gas input pipe (203), one end of the tube side of the heat exchanger (202) being away from the oxygen-enriched gas input pipe (203) being connected to an oxygen-enriched gas gas transmission pipe (205), the oxygen-enriched gas gas transmission pipe (205) being connected to the gas boiler body (1), a flue gas exhaust flow valve (206) being installed inside the flue gas exhaust pipe (201), an oxygen-enriched gas inlet flow valve (207) being installed inside the oxygen-enriched gas input pipe (203), and a temperature sensor (204) being provided inside the heat exchanger (202).

2. A novel oxygen-enriched combustion device for a gas boiler according to claim 1, characterized in that: A support frame (7) is provided on the periphery of the heat exchanger (202).

3. The novel oxygen-enriched combustion device for gas boiler according to claim 2 is characterized in that: A PLC controller (5) is installed on one side of the support frame (7), and the smoke exhaust flow valve (206), the oxygen-rich gas inlet flow valve (207) and the temperature sensor (204) are all electrically connected to the PLC controller (5).

4. The novel oxygen-enriched combustion device for gas boiler according to claim 3 is characterized in that: The smoke exhaust component (3) comprises a smoke output pipe (301), one end of the smoke output pipe (301) is connected to the shell side of the heat exchanger (202), and the end of the smoke output pipe (301) away from the shell side of the heat exchanger (202) is connected to a pretreatment installation shell (302), a filter installation frame (303) is arranged inside the pretreatment installation shell (302), and the number of the filter installation frames (303) is two, one of the filter installation frames (303) is installed with an impurity filter screen (304), and the other filter installation frame (303) is installed with an activated carbon filter plate (305).

5. The novel oxygen-enriched combustion device for gas boiler according to claim 4 is characterized in that: A drawing plate (6) is connected to the periphery of the filter mounting frame (303).

6. The novel oxygen-enriched combustion device for gas boiler according to claim 5 is characterized in that: The sewage pool discharge component (4) comprises a sewage pool discharge pipe (401), the sewage pool discharge pipe (401) is connected to the pretreatment installation shell (302), a sewage pool discharge flow valve (402) is installed inside the sewage pool discharge pipe (401), and a sewage pool body (403) is provided on one side of the sewage pool discharge pipe (401).

7. The novel oxygen-enriched combustion device for gas boiler according to claim 6 is characterized in that: The sewage pool discharge flow valve (402) is electrically connected to the PLC controller (5).

Images