Boiler energy saver with gas adsorption function

Abstract

The utility model discloses a boiler economizer with a gas adsorption function, which relates to the technical field of boiler equipment and comprises a tank body, a filter mechanism arranged at the bottom end of the tank body, a water storage tank arranged at one end of the filter mechanism, a water suction pump arranged at the top end of the water storage tank, and a water outlet pipe arranged at the top end of the water suction pump. One end of the water outlet pipe penetrates through the top of one side of the tank body and is provided with a water spraying plate; a boiler flue gas inlet pipe is arranged at the bottom of one side of the tank in a penetrating mode, a heat exchange mechanism is arranged in the middle in the tank in a penetrating mode, a flue gas outlet is formed in the top end of the tank, and an activated carbon adsorption plate is arranged in the flue gas outlet. The flue gas energy recovery device is reasonable and reliable in structure and convenient to operate, so that energy recovery can be carried out on flue gas generated by the boiler, harmful substances in the flue gas can be adsorbed under the action of the activated carbon adsorption plate, the emission level of the boiler can be reduced, and the environment is prevented from being polluted.

Description

Technical Field

[0001] The utility model relates to the technical field of boiler equipment, in particular to a boiler economizer with a gas adsorption function. Background Art

[0002] The boiler economizer is installed at the tail of the boiler. It uses the principle of heat exchange to reduce the boiler exhaust temperature and increase the boiler feed water temperature to achieve the purpose of saving fuel, energy saving and environmental protection. The basic principle of the boiler economizer is that the high-temperature flue gas at the tail of the boiler enters the boiler economizer, and the water in the economizer absorbs the temperature of the flue gas through the finned tubes and then returns to the boiler, which is equivalent to increasing the boiler feed water temperature. Under the condition of constant boiler output, energy consumption is reduced. In specific applications, it is necessary to collect particulate matter in the flue gas to avoid air pollution.

[0003] For example, Chinese patent CN215113228U discloses a boiler economizer, including a boiler body, a blower is arranged on one side of the boiler body, an air supply pipe is connected between the boiler body and the blower, a water inlet pipe and a steam outlet pipe are installed on the top of the boiler body, and a connecting vessel, a pressure relief pipe outlet pipe and an oil inlet pipe are installed on the outer wall of the boiler body. It can slow down the diffusion speed of flue gas and adsorb harmful gases through the activated carbon inside it. However, when the above-mentioned boiler economizer recovers heat from the flue gas, it absorbs harmful gases and particulate matter through the activated carbon adsorption plate, so that particulate matter will be adsorbed on the activated carbon adsorption plate, which will cause the filtering and adsorption performance of the activated carbon adsorption plate to decrease and it is not convenient to collect particulate impurities, reducing the service life of the activated carbon adsorption plate, which will not only increase the maintenance cost, but also increase the workload of the staff.

[0004] Currently, no effective solution has been proposed for the problems in the related technologies. Utility Model Content

[0005] In view of the problems in the related art, the utility model proposes a boiler economizer with a gas adsorption function to overcome the above technical problems existing in the existing related art.

[0006] To this end, the specific technical solutions adopted by the utility model are as follows:

[0007] A boiler economizer with a gas adsorption function comprises a tank body, a filtering mechanism is arranged at the bottom end of the tank body, a water storage tank is arranged at one end of the filtering mechanism, a water pump is arranged at the top end of the water storage tank, a water outlet pipe is arranged at the top end of the water pump, one end of the water outlet pipe passes through the top of one side of the tank body and is provided with a water spray plate, and a plurality of nozzles are arranged at the bottom end of the water spray plate; a boiler flue gas inlet pipe is penetrated through the bottom of one side of the tank body, a heat exchange mechanism is penetrated through the middle part of the tank body, a smoke outlet is arranged at the top end of the tank body, and an activated carbon adsorption plate is arranged inside the smoke outlet.

[0008] Furthermore, in order to filter the particulate impurities in the flue gas, the activated carbon adsorption plate can be prevented from adsorbing harmful gases and particulate impurities, thereby increasing the service life of the activated carbon adsorption plate. At the same time, through the provision of two sets of filter screens, the filter screen can be replaced without stopping the filter economizer, and the particulate impurities can also be recovered through the collecting pipe, thereby improving the versatility of the boiler economizer. The filtering mechanism includes a feed pipe arranged at the bottom end of the tank body, a square tube is arranged at one end of the feed pipe, and a connecting pipe connected to the water tank is arranged on the side wall of one end of the square tube; placement grooves are provided on the tops of both ends of the square tube, and the cross-section of the placement groove is arc-shaped. Structure, grooves are provided on both sides and the bottom of the placement groove, and a sealing component is provided inside the groove, and an arc-shaped mounting plate is provided inside the placement groove; ears are symmetrically provided on the outside of both ends of the square tube and located at both ends of the placement groove, and a valve penetrating the outside of the square tube is provided on one side of the arc-shaped mounting plate; collecting pipes are provided at the bottom ends of the outside of both ends of the square tube, and a sealing cover is provided at the bottom end of the collecting pipe, and the bottom end of the collecting pipe is threadedly connected with the sealing cover; the cross-section of the arc-shaped mounting plate is an arc shape, and a filter is provided at the inner bottom end of the arc-shaped mounting plate, and ears cooperating with ears are provided at both ends of the arc-shaped mounting plate, and ears one and ears two are connected by bolts.

[0009] Furthermore, in order to ensure the sealing performance of the filter mechanism during use, the sealing assembly includes two groups of strip sealing gaskets symmetrically arranged inside the two ends of the groove, and arc-shaped sealing gaskets located inside the two sides of the groove are arranged at both ends of the strip sealing gasket.

[0010] Furthermore, in order to better absorb the heat in the flue gas, the coordinated use of the heat conduction plate and the heat exchange tube can increase the contact area with the flue gas and water, so that the heat can be absorbed more fully, the heat exchange efficiency of the heat exchange mechanism can be improved, and resource waste can be avoided. The heat exchange mechanism includes a plurality of heat exchange tubes evenly arranged inside the tank body, both ends of the heat exchange tubes penetrate the side wall of the tank body, and the end located at the bottom end of the heat exchange tube is provided with a water inlet pipe, and the end located at the top end of the heat exchange tube is provided with a drain pipe; a plurality of evenly arranged heat conduction plates are provided on the outside of the heat exchange tube, and the inclination directions of two adjacent groups of heat conduction plates in the vertical direction are opposite.

[0011] Furthermore, in order to achieve disturbance of water flow so that the water in the heat exchange tube can be replaced for energy conversion, the cross-section of the heat exchange tube is a serpentine structure, and the inner wall of the heat exchange tube is provided with a number of flow disturbance plates.

[0012] The beneficial effects of the utility model are:

[0013] 1. The utility model has a reasonable and reliable structure and is easy to operate, so that the energy of the flue gas generated by the boiler can be recovered. Under the action of the activated carbon adsorption plate, harmful substances in the flue gas can be adsorbed, thereby reducing the emission level of the boiler and avoiding environmental pollution.

[0014] 2. By setting up a filtering mechanism, particulate impurities in the flue gas can be filtered, which can avoid the activated carbon adsorption plate from adsorbing harmful gases and particulate impurities, thereby increasing the service life of the activated carbon adsorption plate. At the same time, through the setting of two sets of filter screens, the filter screen can be replaced without stopping the filter economizer, and the particulate impurities can also be recovered through the collection pipe, thereby improving the versatility of the boiler economizer.

[0015] 3. By setting up a heat exchange mechanism, the heat in the flue gas can be better absorbed. With the coordinated use of the heat conduction plate and the heat exchange tube, the contact area with the flue gas and water can be increased, and the heat can be absorbed more fully. At the same time, under the action of the spoiler, the water flow is disturbed, so that the water in the heat exchange tube can be replaced for energy conversion, thereby improving the heat exchange efficiency of the heat exchange mechanism and avoiding waste of resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a structural schematic diagram of a boiler economizer with gas adsorption function according to an embodiment of the utility model;

[0018] Figure 2 is a cross-sectional view of a boiler economizer with a gas adsorption function according to an embodiment of the utility model;

[0019] Figure 3 It is a three-dimensional assembly diagram of a filter mechanism in a boiler economizer with a gas adsorption function according to an embodiment of the utility model;

[0020] Figure 4 yes Figure 3A partial enlarged view of the middle A;

[0021] Figure 5 It is a structural schematic diagram of a heat exchange mechanism in a boiler economizer with a gas adsorption function according to an embodiment of the utility model;

[0022] Figure 6 It is a cross-sectional view of a heat exchange mechanism in a boiler economizer with a gas adsorption function according to an embodiment of the utility model.

[0023] In the figure:

[0024] 1. Tank body; 2. Filter mechanism; 201. Feeding pipe; 202. Square pipe; 203. Connecting pipe; 204. Placement slot; 205. Groove; 206. Sealing assembly; 2061. Strip sealing gasket; 2062. Arc sealing gasket; 207. Arc mounting plate; 2071. Filter screen; 2072. Lifting ear 2; 2073. Bolt; 208. Lifting ear 1; 209. Valve; 210. Collecting pipe; 211. Sealing cover; 3. Water storage tank; 4. Water pump; 5. Water outlet pipe; 6. Water spray plate; 7. Nozzle; 8. Boiler flue gas inlet pipe; 9. Heat exchange mechanism; 901. Heat exchange tube; 9011. Spoiler; 902. Water inlet pipe; 903. Drain pipe; 904. Heat conduction plate; 10. Smoke outlet; 11. Activated carbon adsorption plate. DETAILED DESCRIPTION

[0025] To further illustrate each embodiment, the present invention provides drawings, which are part of the disclosure of the present invention and are mainly used to illustrate the embodiments. They 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.

[0026] According to an embodiment of the utility model, a boiler economizer with a gas adsorption function is provided.

[0027] The present invention is now further described in conjunction with the accompanying drawings and specific implementation methods. Figure 1-Figure 6As shown, the boiler economizer with gas adsorption function according to the embodiment of the utility model includes a tank body 1, a filtering mechanism 2 is arranged at the bottom end of the tank body 1, a water storage tank 3 is arranged at one end of the filtering mechanism 2, a water pump 4 is arranged at the top of the water storage tank 3, a water outlet pipe 5 is arranged at the top of the water pump 4, one end of the water outlet pipe 5 passes through the top of one side of the tank body 1 and is provided with a water spray plate 6, and a plurality of nozzles 7 are arranged at the bottom end of the water spray plate 6; a boiler flue gas inlet pipe 8 is penetrated through the bottom of one side of the tank body 1, a heat exchange mechanism 9 is penetrated through the middle part of the tank body 1, a smoke outlet 10 is arranged at the top of the tank body 1, and an activated carbon adsorption plate 11 is arranged inside the smoke outlet 10. In addition, in specific applications, the above-mentioned activated carbon adsorption plate 11 is movably connected to the inner wall of the smoke outlet 10.

[0028] In addition, it should be noted that the boiler flue gas inlet pipe 8 is connected to the boiler exhaust pipe. The flue gas generated during the use of the boiler will enter the tank body 1 through the boiler flue gas inlet pipe 8 for heat exchange. This is the existing technology and will not be elaborated here.

[0029] In addition, the outsides of the filtering mechanism 2, the water storage tank 3 and the water outlet pipe 5 may be provided with heat-insulating materials to avoid heat loss.

[0030] With the help of the above-mentioned technical scheme of the utility model, the utility model has a reasonable and reliable structure and is easy to operate, so that the energy of the flue gas generated by the boiler can be recovered, and under the action of the activated carbon adsorption plate 11, harmful substances in the flue gas can be adsorbed, thereby reducing the emission level of the boiler and avoiding environmental pollution.

[0031] In one embodiment, for the above-mentioned filtering mechanism 2, the filtering mechanism 2 includes a feed pipe 201 arranged at the bottom end of the tank body 1, a square tube 202 is arranged at one end of the feed pipe 201, and a connecting pipe 203 connected to the water storage tank 3 is arranged on the side wall of one end of the square tube 202; placement grooves 204 are provided on the tops of both ends of the square tube 202, and the cross-section of the placement groove 204 is an arc-shaped structure, grooves 205 are provided on both sides and the bottom of the placement groove 204, and a sealing component 206 is arranged inside the groove 205, and an arc-shaped mounting plate 207 is arranged inside the placement groove 204; ears 208 are symmetrically arranged on the outside of both ends of the square tube 202 and at both ends of the placement groove 204, and one side of the arc-shaped mounting plate 207 is provided with a hole that penetrates the outer side of the square tube 202. The outer bottom ends of both ends of the square tube 202 are provided with collecting tubes 210, and the bottom ends of the collecting tubes 210 are provided with sealing covers 211, and the bottom ends of the collecting tubes 210 are threadedly connected with the sealing covers 211; the cross section of the arc-shaped mounting plate 207 is arc-shaped, and the inner bottom end of the arc-shaped mounting plate 207 is provided with a filter screen 2071, and both ends of the arc-shaped mounting plate 207 are provided with ear 2072 cooperating with ear 1 208, and the ear 1 208 and the ear 2 2072 are connected by bolts 2073; the sealing assembly 206 includes two groups of strip sealing gaskets 2061 symmetrically arranged inside the two ends of the groove 205, and both ends of the strip sealing gasket 2061 are provided with arc-shaped sealing gaskets 2062 located inside the two sides of the groove 205.

[0032] The working principle of the filtering mechanism 2 is as follows: when the circulating water that absorbs the flue gas enters the square tube 202 through the discharge pipe 201, at this time, one valve 209 is opened and the other valve 209 is closed, and then the circulating water passes through the opened valve, and then the particulate impurities in the circulating water that absorbs the flue gas are filtered through the filter 2071, and then the particulate impurities are accumulated and fall into the collection pipe 210, and then the filtered circulating water enters the water storage tank 3 through the connecting pipe 203 to circulate again. After a long time, the sealing cover 211 can be opened to take out the particulate impurities in the collection pipe 210 for recovery.

[0033] In addition, when the filter 2071 needs to be maintained, the previously opened valve 209 can be closed, and then the previously closed valve 209 can be opened, and then the bolt 2073 can be removed from the ear 1 208 and the ear 2 2072, and then the arc mounting plate 207 and the filter 2071 can be taken out for replacement or maintenance.

[0034] In one embodiment, for the above-mentioned heat exchange mechanism 9, the heat exchange mechanism 9 includes a plurality of heat exchange tubes 901 evenly arranged inside the tank body 1, both ends of the heat exchange tube 901 penetrate the side wall of the tank body 1, and the end located at the bottom end of the heat exchange tube 901 is provided with a water inlet pipe 902, and the end located at the top end of the heat exchange tube 901 is provided with a drain pipe 903; a plurality of evenly arranged heat conduction plates 904 are provided outside the heat exchange tube 901, and the inclination directions of two adjacent groups of heat conduction plates 904 in the vertical direction are opposite; the cross-section of the heat exchange tube 901 is a serpentine structure, and a plurality of interference flow plates 9011 are provided on the inner wall of the heat exchange tube 901.

[0035] The working principle of the heat exchange mechanism 9 is as follows: after the cold water enters the water inlet pipe 902, the cold water returns to the heat exchange tube 901. Since the heat exchange tube 901 is serpentine, the flow path of the cold water can be increased, and the contact time between the heat exchange tube 901 and the heat conduction plate 904 and the flue gas and circulating water can be increased. At the same time, the cold water can be disturbed under the action of the spoiler 9011, thereby improving the heat exchange efficiency of the cold water.

[0036] 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.

[0037] In actual application, circulating water is added to the water tank 3 in advance, and then the circulating water in the water tank 3 is passed into the water spray plate 6 through the water outlet pipe 5 by the water pump 4, and then sprayed out through the nozzle 7. At this time, the flue gas generated by the boiler during use is introduced through the boiler flue gas inlet pipe 8, and the cold water to be exchanged is passed through the heat exchange mechanism 9, and then the circulating water sprayed out from the nozzle 7 contacts and heats the flue gas. Therefore, after the circulating water and the flue gas contact the heat exchange mechanism 9, the cold water in the heat exchange mechanism 9 will be heat exchanged. At the same time, in the process of contact between the circulating water and the flue gas, the particulate impurities in the flue gas will be adsorbed, and then flow into the filtering mechanism 2 for filtration and collection treatment, and then the circulating water enters the water tank 3 again for circulation, and then the flue gas after the particulate adsorption treatment passes through the activated carbon adsorption plate 11, and the activated carbon adsorption plate 11 will adsorb the harmful substances in the flue gas.

[0038] In summary, with the help of the above-mentioned technical scheme of the utility model, the utility model has a reasonable and reliable structure and is easy to operate, so that the flue gas generated by the boiler can be energy recovered, and under the action of the activated carbon adsorption plate 11, harmful substances in the flue gas can be adsorbed, thereby reducing the emission level of the boiler and avoiding environmental pollution; by setting the filtering mechanism 2, the particulate impurities in the flue gas are filtered, and the adsorption of harmful gases and particulate impurities by the activated carbon adsorption plate 11 can be avoided, thereby improving the service life of the activated carbon adsorption plate 11. At the same time, through the setting of two groups of filter screens 2071, it is possible to filter the energy saver without The filter 2071 can be replaced in the shutdown state, and the particulate impurities can also be recovered and processed through the collecting pipe 210, which improves the versatility of the boiler economizer; by setting up the heat exchange mechanism 9, the absorption of heat in the flue gas can be better achieved. With the coordinated use of the heat conduction plate 904 and the heat exchange tube 901, the contact area with the flue gas and water can be increased, and heat can be absorbed more fully. At the same time, under the action of the spoiler 9011, the water flow is disturbed, so that the water in the heat exchange tube 901 can be replaced for energy conversion, thereby improving the heat exchange efficiency of the heat exchange mechanism 9 and avoiding waste of resources.

[0039] 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.

[0040] 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 boiler economizer with gas adsorption function, comprising a tank body (1), characterized in that: A filtering mechanism (2) is provided at the bottom end of the tank body (1), a water storage tank (3) is provided at one end of the filtering mechanism (2), a water pump (4) is provided at the top end of the water storage tank (3), a water outlet pipe (5) is provided at the top end of the water pump (4), one end of the water outlet pipe (5) passes through the top of one side of the tank body (1) and is provided with a water spray plate (6), and a plurality of nozzles (7) are provided at the bottom end of the water spray plate (6); A boiler flue gas inlet pipe (8) is provided through the bottom of one side of the tank body (1), a heat exchange mechanism (9) is provided through the middle of the tank body (1), a smoke outlet (10) is provided at the top of the tank body (1), and an activated carbon adsorption plate (11) is provided inside the smoke outlet (10).

2. A boiler economizer with gas adsorption function according to claim 1, characterized in that: The filtering mechanism (2) comprises a feed pipe (201) arranged at the bottom end of the tank body (1), one end of the feed pipe (201) is provided with a square tube (202), and one end side wall of the square tube (202) is provided with a connecting tube (203) connected to the water storage tank (3); The tops of both ends of the square tube (202) are provided with placement grooves (204), and the cross section of the placement groove (204) is an arc-shaped structure. The two sides and the bottom of the placement groove (204) are provided with grooves (205), and the interior of the groove (205) is provided with a sealing component (206), and the interior of the placement groove (204) is provided with an arc-shaped installation plate (207); Lifting ears (208) are symmetrically arranged on the outside of both ends of the square tube (202) and located at both ends of the placement groove (204), and a valve (209) penetrating the outside of the square tube (202) is arranged on one side of the arc-shaped installation plate (207); The outer bottom ends of both ends of the square tube (202) are provided with a collecting tube (210), and the bottom end of the collecting tube (210) is provided with a sealing cover (211), and the bottom end of the collecting tube (210) and the sealing cover (211) are threadedly connected.

3. A boiler economizer with gas adsorption function according to claim 2, characterized in that: The cross section of the arc-shaped mounting plate (207) is arc-shaped, and a filter screen (2071) is arranged at the inner bottom end of the arc-shaped mounting plate (207), and two ends of the arc-shaped mounting plate (207) are provided with a second lifting ear (2072) that cooperates with the first lifting ear (208), and the first lifting ear (208) and the second lifting ear (2072) are connected by a bolt (2073).

4. A boiler economizer with gas adsorption function according to claim 2, characterized in that: The sealing assembly (206) comprises two groups of strip sealing pads (2061) symmetrically arranged inside the two ends of the groove (205), and both ends of the strip sealing pads (2061) are provided with arc-shaped sealing pads (2062) located inside the two sides of the groove (205).

5. The boiler economizer with gas adsorption function according to claim 1, characterized in that: The heat exchange mechanism (9) comprises a plurality of heat exchange tubes (901) evenly arranged inside the tank body (1), both ends of the heat exchange tubes (901) passing through the side wall of the tank body (1), and a water inlet pipe (902) is provided at the end located at the bottom end of the heat exchange tube (901), and a drainage pipe (903) is provided at the end located at the top end of the heat exchange tube (901); A plurality of evenly arranged heat conducting plates (904) are disposed outside the heat exchange tube (901), and the inclination directions of two adjacent groups of the heat conducting plates (904) in the vertical direction are opposite.

6. A boiler economizer with gas adsorption function according to claim 5, characterized in that: The cross section of the heat exchange tube (901) is a serpentine structure, and the inner wall of the heat exchange tube (901) is provided with a plurality of interfering flow plates (9011).

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