Boiler flue gas temperature adjusting device

Abstract

The utility model discloses a boiler flue gas temperature adjusting device, and relates to the technical field of boilers, the boiler flue gas temperature adjusting device comprises a heat exchange tank, the heat exchange tank is internally provided with a heat exchange assembly, and the heat exchange assembly comprises a flue gas shunting heat exchange unit and a water flow shunting guide unit; the flue gas shunting heat exchange unit is used for realizing shunting operation of flue gas and increasing the heat exchange area of the flue gas and water flow; the water flow dividing and guiding unit is used for dividing water flow and guiding spiral flow, the divided water flow is used for increasing the heat exchange area of the water flow and flue gas, and the spiral flow is used for increasing the heat exchange stroke length of the water flow and the flue gas. By arranging the heat exchange assembly, double flow division of smoke and water flow can be achieved, the heat exchange area of the smoke and the water flow is effectively increased, meanwhile, the heat exchange stroke of the water flow and the smoke is further prolonged through spiral flowing of the water flow, and then the cooling effect and the cooling efficiency of the smoke are further improved.

Description

Technical Field

[0001] This utility model relates to the field of boiler technology, specifically a boiler flue gas temperature regulating device. Background Technology

[0002] A boiler is an energy conversion device. The energy input to a boiler includes the chemical energy of fuel and electrical energy. The boiler outputs steam, high-temperature water, or organic heat carriers with a certain amount of thermal energy.

[0003] The flue gas generated during boiler operation is at a high temperature and contains a lot of harmful substances. Direct emission will pollute the air environment and cause a lot of heat waste. In order to reduce the emission of pollutants, we need to treat the flue gas. Conventional flue gas treatment requires cooling the high-temperature flue gas before treatment. Based on this, a boiler flue gas temperature regulation device is provided. Utility Model Content

[0004] The purpose of this utility model is to provide a boiler flue gas temperature regulating device in order to solve the problems mentioned above.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a boiler flue gas temperature regulating device, comprising a heat exchange tank, wherein a heat exchange component is provided inside the heat exchange tank, and the heat exchange component comprises a flue gas diversion heat exchange unit and a water flow diversion guiding unit;

[0006] The flue gas diversion heat exchange unit is used to realize the diversion operation of flue gas and to increase the heat exchange area between flue gas and water flow.

[0007] The water flow diversion and guiding unit is used to realize the diversion of water flow and the spiral flow guidance. The diverted water flow is used to increase the heat exchange area between the water flow and the flue gas, and the spiral flow is used to increase the heat exchange path length between the water flow and the flue gas.

[0008] As a further embodiment of this utility model: the flue gas diversion heat exchange unit includes an upper flue gas chamber partition, a lower flue gas chamber partition, a diversion hole, a heat exchange cylinder, an air inlet, and an air outlet;

[0009] The upper and lower smoke chamber partitions are symmetrically fixed vertically inside the heat exchange tank, and the middle area between the upper and lower smoke chamber partitions is used for heat exchange operations.

[0010] The diversion hole is opened at the top of the upper and lower smoke chamber partitions and completely penetrates the bottom of the upper and lower smoke chamber partitions. The heat exchange cylinder is fixed in the middle of the upper and lower smoke chamber partitions and is aligned and connected with the diversion hole. There are several diversion holes and heat exchange cylinders arranged in a matrix. Multiple heat exchange cylinders are used to divert the flue gas and exchange heat with the water flow.

[0011] The air inlet is fixed to the top of one side of the heat exchange tank and extends into the inside of the heat exchange tank. The ports of the air inlet are located above the upper smoke chamber partition. The air outlet is fixed to the bottom of the other side of the heat exchange tank and extends into the inside of the heat exchange tank. The ports of the air outlet are located below the lower smoke chamber partition.

[0012] As a further embodiment of this utility model: the water flow diversion and guiding unit includes a spiral guide plate, an upper water tank partition, a lower water tank partition, a through hole, and a diversion sleeve;

[0013] The spiral guide vane is fixed to the outside of the heat exchange cylinder column;

[0014] The upper water tank partition and the lower water tank partition are symmetrically fixed vertically inside the heat exchange tank, and the upper water tank partition and the lower water tank partition are distributed in the middle of the upper smoke tank partition and the lower smoke tank partition. The through hole is opened at the top of the upper water tank partition and the lower water tank partition and completely penetrates the bottom of the upper water tank partition and the lower water tank partition. The upper water tank partition and the lower water tank partition are sleeved on the outside of the spiral guide plate through the through hole.

[0015] The diversion sleeve is fixed in the middle of the upper water tank partition and the lower water tank partition and is aligned with the through hole for conduction. The diversion sleeve is sleeved on the outside of the spiral guide plate.

[0016] The diversion sleeve is used to divide the water flow, and the heat exchange cylinder is used to guide the divided water flow in a spiral flow.

[0017] As a further improvement of this utility model, the water flow diversion and guiding unit also includes an inlet and an outlet;

[0018] The water inlet is fixed to the bottom of one side of the heat exchange tank and extends into the inside of the heat exchange tank. The ports of the water inlet are distributed in the area between the lower water chamber partition and the lower smoke chamber partition.

[0019] The outlet is fixed to the bottom of the other side of the heat exchange tank and extends through the inside of the heat exchange tank. The inlet is located in the area between the upper smoke chamber partition and the upper water chamber partition.

[0020] As a further improvement of this utility model: the outer diameter of the threaded trajectory of the spiral guide vane matches the inner diameter of the through hole and the diversion sleeve, and the spiral guide vane protrudes from the top of the upper water tank partition and the bottom of the lower water tank partition.

[0021] Compared with the prior art, the beneficial effects of this utility model are:

[0022] By setting up heat exchange components, dual diversion of flue gas and water flow can be achieved, effectively increasing the heat exchange area between flue gas and water flow. At the same time, the spiral flow of water further extends the heat exchange path between water flow and flue gas, thereby further improving the cooling effect and cooling efficiency of flue gas. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of this utility model;

[0024] Figure 2 This is a structural cross-sectional view of the heat exchange tank and the upper and lower smoke chamber partitions of this utility model.

[0025] Figure 3 This is a cross-sectional view of the lower smoke chamber partition and heat exchange assembly of this utility model.

[0026] In the diagram: 1. Heat exchange tank; 2. Heat exchange assembly; 201. Upper smoke chamber baffle; 202. Lower smoke chamber baffle; 203. Diversion hole; 204. Heat exchange cylinder; 205. Spiral guide vane; 206. Upper water chamber baffle; 207. Lower water chamber baffle; 208. Through hole; 209. Diversion sleeve; 210. Air inlet; 211. Air outlet; 212. Water inlet; 213. Water outlet. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Please see Figures 1-3 In this embodiment of the utility model, a boiler flue gas temperature regulating device includes a heat exchange tank 1, and a heat exchange component 2 is provided inside the heat exchange tank 1. The heat exchange component 2 includes a flue gas diversion heat exchange unit and a water flow diversion guide unit.

[0029] The flue gas diversion heat exchange unit is used to realize the diversion operation of flue gas and to increase the heat exchange area between flue gas and water flow.

[0030] The water flow diversion and guiding unit is used to realize the diversion of water flow and the spiral flow guidance. The diverted water flow is used to increase the heat exchange area between the water flow and the flue gas, and the spiral flow is used to increase the heat exchange path length between the water flow and the flue gas.

[0031] The flue gas diversion heat exchange unit includes an upper flue gas baffle 201, a lower flue gas baffle 202, a diversion hole 203, a heat exchange cylinder 204, an air inlet 210, and an air outlet 211;

[0032] The upper smoke chamber partition 201 and the lower smoke chamber partition 202 are symmetrically fixed vertically inside the heat exchange tank 1. The middle area between the upper smoke chamber partition 201 and the lower smoke chamber partition 202 is used for heat exchange operation.

[0033] The diversion hole 203 is opened at the top of the upper smoke chamber partition 201 and the lower smoke chamber partition 202 and completely penetrates the bottom of the upper smoke chamber partition 201 and the lower smoke chamber partition 202. The heat exchange cylinder 204 is fixed in the middle of the upper smoke chamber partition 201 and the lower smoke chamber partition 202 and is aligned and connected with the diversion hole 203. Several diversion holes 203 and heat exchange cylinders 204 are provided and distributed in a matrix. Multiple heat exchange cylinders 204 are used to divert the flue gas and exchange heat with the water flow.

[0034] The air inlet 210 is fixed to the top of one side of the heat exchange tank 1 and extends into the inside of the heat exchange tank 1. The ports of the air inlet 210 are located above the upper smoke chamber partition 201. The air outlet 211 is fixed to the bottom of the other side of the heat exchange tank 1 and extends into the inside of the heat exchange tank 1. The ports of the air outlet 211 are located below the lower smoke chamber partition 202.

[0035] The water flow diversion and guiding unit includes a spiral guide vane 205, an upper water tank baffle 206, a lower water tank baffle 207, a through hole 208, a diversion sleeve 209, an inlet 212, and an outlet 213;

[0036] The spiral guide vane 205 is fixed to the outside of the heat exchange cylinder column 204;

[0037] The upper water tank partition 206 and the lower water tank partition 207 are symmetrically fixed vertically to the inside of the heat exchange tank 1, and the upper water tank partition 206 and the lower water tank partition 207 are distributed between the upper smoke tank partition 201 and the lower smoke tank partition 202. The through hole 208 is opened at the top of the upper water tank partition 206 and the lower water tank partition 207 and completely penetrates the bottom of the upper water tank partition 206 and the lower water tank partition 207. The upper water tank partition 206 and the lower water tank partition 207 are sleeved on the outside of the spiral guide plate 205 through the through hole 208.

[0038] The diversion sleeve 209 is fixed in the middle of the upper water tank partition 206 and the lower water tank partition 207 and is aligned with the through hole 208 for communication. The diversion sleeve 209 is sleeved on the outside of the spiral guide plate 205.

[0039] The diversion sleeve 209 is used to divert the water flow, and the heat exchange cylinder 204 is used to guide the diverted water flow in a spiral flow.

[0040] The inlet 212 is fixed to the bottom of one side of the heat exchange tank 1 and extends through to the inside of the heat exchange tank 1. The ports of the inlet 212 are distributed in the middle area between the lower water chamber partition 207 and the lower smoke chamber partition 202.

[0041] The outlet 213 is fixed to the bottom of the other side of the heat exchange tank 1 and extends through to the inside of the heat exchange tank 1. The inlet 212 is located in the area between the upper smoke chamber partition 201 and the upper water chamber partition 206.

[0042] In this embodiment, the working principle of this boiler flue gas temperature regulating device is as follows:

[0043] The flue gas to be cooled enters the heat exchange tank 1 through the air inlet 210, and then flows into the heat exchange cylinder 204 through several diversion holes 203 to achieve flue gas diversion. Then the flue gas flows into the bottom of the heat exchange tank 1 through the bottom port of the heat exchange cylinder 204, and is finally transported to the next process through the air outlet 211.

[0044] At the same time, cold water enters the area between the lower water chamber partition 207 and the lower smoke chamber partition 202 through the inlet 212, and then flows into the interior of each diversion sleeve 209 through several through holes 208, thus achieving water diversion. The diverted water flows upward along the diversion sleeve 209 to the area between the upper water chamber partition 206 and the upper smoke chamber partition 201, and is finally discharged through the outlet 213.

[0045] During this process, when the water flows inside the diversion sleeve 209, it is limited by the spiral guide plate 205, and its flow trajectory is spiral upward. The spiral upward water flows with the flue gas flowing straight downward inside the heat exchange cylinder 204 to exchange heat, thereby realizing the cooling operation of the flue gas.

[0046] Through the coordination of the above components and the dual diversion of flue gas and water flow, the heat exchange area between flue gas and water flow can be effectively increased. At the same time, the spiral flow of water further extends the heat exchange path between water flow and flue gas, thereby further improving the cooling effect and cooling efficiency of flue gas.

[0047] Please refer to this carefully. Figures 2-3 The outer diameter of the threaded trajectory of the spiral guide vane 205 matches the inner diameter of the through hole 208 and the diversion sleeve 209. The spiral guide vane 205 protrudes from the top of the upper water tank partition 206 and the bottom of the lower water tank partition 207.

[0048] In this embodiment, the spiral guide vane 205 not only guides the flow of water, but also increases the heat exchange area. The spiral guide vane 205 can further diffuse the heat from the heat exchange cylinder 204 into the water flow, thus further improving the heat exchange efficiency.

[0049] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A boiler flue gas temperature regulating device, comprising a heat exchange tank (1), characterized in that, The heat exchange tank (1) is equipped with a heat exchange assembly (2), which includes a flue gas diversion heat exchange unit and a water flow diversion guide unit. The flue gas diversion heat exchange unit is used to realize the diversion operation of flue gas and to increase the heat exchange area between flue gas and water flow. The water flow diversion and guiding unit is used to realize the diversion of water flow and the spiral flow guidance. The diverted water flow is used to increase the heat exchange area between the water flow and the flue gas, and the spiral flow is used to increase the heat exchange path length between the water flow and the flue gas. The flue gas diversion heat exchange unit includes an upper flue gas chamber partition (201), a lower flue gas chamber partition (202), a diversion hole (203), a heat exchange cylinder (204), an air inlet (210), and an air outlet (211); The upper smoke chamber partition (201) and the lower smoke chamber partition (202) are symmetrically fixed vertically inside the heat exchange tank (1), and the middle area between the upper smoke chamber partition (201) and the lower smoke chamber partition (202) is used for heat exchange operation. The diversion hole (203) is opened at the top of the upper smoke chamber partition (201) and the lower smoke chamber partition (202) and completely penetrates the bottom of the upper smoke chamber partition (201) and the lower smoke chamber partition (202). The heat exchange cylinder (204) is fixed in the middle of the upper smoke chamber partition (201) and the lower smoke chamber partition (202) and is aligned and connected with the diversion hole (203). There are several diversion holes (203) and heat exchange cylinders (204) arranged in a matrix. The multiple heat exchange cylinders (204) are used to divert the flue gas and exchange heat with the water flow. The air inlet (210) is fixed to the top of one side of the heat exchange tank (1) and extends into the inside of the heat exchange tank (1). The ports of the air inlet (210) are located above the upper smoke chamber partition (201). The air outlet (211) is fixed to the bottom of the other side of the heat exchange tank (1) and extends into the inside of the heat exchange tank (1). The ports of the air outlet (211) are located below the lower smoke chamber partition (202). The water flow diversion and guiding unit includes a spiral guide plate (205), an upper water tank partition (206), a lower water tank partition (207), a through hole (208), and a diversion sleeve (209); The spiral guide vane (205) is fixed to the outside of the heat exchange cylinder column (204); The upper water tank partition (206) and the lower water tank partition (207) are symmetrically fixed vertically to the inside of the heat exchange tank (1), and the upper water tank partition (206) and the lower water tank partition (207) are distributed between the upper smoke tank partition (201) and the lower smoke tank partition (202). The through hole (208) is opened at the top of the upper water tank partition (206) and the lower water tank partition (207) and completely penetrates the bottom of the upper water tank partition (206) and the lower water tank partition (207). The upper water tank partition (206) and the lower water tank partition (207) are sleeved on the outside of the spiral guide plate (205) through the through hole (208). The diversion sleeve (209) is fixed in the middle of the upper water tank partition (206) and the lower water tank partition (207) and is aligned with the through hole (208) for communication. The diversion sleeve (209) is sleeved on the outside of the spiral guide plate (205). The diversion sleeve (209) is used to divert the water flow, and the heat exchange cylinder (204) is used to guide the diverted water flow in a spiral direction.

2. The boiler flue gas temperature regulating device according to claim 1, characterized in that, The water flow diversion and guiding unit also includes an inlet (212) and an outlet (213); The inlet (212) is fixed to the bottom of one side of the heat exchange tank (1) and extends through the inside of the heat exchange tank (1). The ports of the inlet (212) are distributed in the area between the lower water chamber partition (207) and the lower smoke chamber partition (202). The outlet (213) is fixed to the bottom of the other side of the heat exchange tank (1) and extends through to the inside of the heat exchange tank (1). The port of the inlet (212) is located in the area between the upper smoke chamber partition (201) and the upper water chamber partition (206).

3. The boiler flue gas temperature regulating device according to claim 1, characterized in that, The outer diameter of the threaded trajectory of the spiral guide vane (205) matches the inner diameter of the through hole (208) and the diversion sleeve (209). The spiral guide vane (205) protrudes from the top of the upper water tank partition (206) and the bottom of the lower water tank partition (207).

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