A multi-stage gradient quench tower

Abstract

This utility model belongs to the field of environmental protection equipment technology, and particularly relates to a multi-stage gradient quench tower, comprising: a cooling tower, the cooling tower including a tower body and a tower base, a cooling chamber provided in the tower body, and the tower base connected to the bottom of the tower body; a circulation device, the circulation device including a storage water tank and a circulation pipeline, the circulation pipeline connecting the storage water tank and the tower body; an auxiliary filter screen, the auxiliary filter screen being disposed in the tower body, the auxiliary filter screen being broken through the smoke bubbles; wherein, multiple cooling towers are provided, the circulation pipeline connecting the multiple cooling towers together, and air passages connecting the multiple cooling towers.

Description

Technical Field

[0001] This utility model belongs to the field of environmental protection equipment technology, and in particular relates to a multi-stage gradient quench tower. Background Technology

[0002] As the core equipment for treating solid waste, the performance of the flue gas purification system in an incinerator directly affects pollutant emission control and environmental safety. The quench tower, a key component of the flue gas purification system, effectively inhibits the resynthesis of harmful substances such as dioxins by rapidly cooling high-temperature flue gas, while simultaneously achieving the initial removal of acidic gases and particulate matter. This article will systematically analyze the specific role of the quench tower in flue gas purification from four dimensions: its working principle, core functions, technological advantages, and practical applications.

[0003] Existing cooling towers typically use nozzles to spray a solution that comes into contact with the flue gas to achieve cooling. However, in actual use, the flue gas cannot make sufficient contact with the sprayed solution, resulting in poor cooling effect. To avoid this, existing cooling towers often cool the coolant to enhance the cooling effect, but this method often has high energy consumption. Therefore, we have specially designed a multi-stage gradient quench tower. Utility Model Content

[0004] The purpose of this invention is to address the aforementioned technical problems by providing a multi-stage gradient quench tower, thereby improving the cooling effect.

[0005] In view of this, the present invention provides a multi-stage gradient quench tower, comprising: A cooling tower consists of a tower body and a tower base. The tower body contains a cooling chamber, and the tower base is connected to the bottom of the tower body. The circulation device includes a water storage tank and circulation pipelines, with the circulation pipelines connecting the water storage tank and the tower body; An auxiliary filter is installed inside the tower and is broken up by smoke bubbles. The system includes multiple cooling towers connected by a circulation pipeline, and air passages connecting the cooling towers.

[0006] In the above technical solution, the tower body further includes: The gas inlet is located on the side wall at the bottom of the tower body, and its opening is higher than the tower base. The gas discharge end is located on the end face at the top of the tower body, and the gas discharge end and gas input end of adjacent tower bodies are connected through a gas passage. The coolant inlet is located on the wall of the top side of the tower body, and the circulation pipeline is connected to the coolant inlet.

[0007] In the above technical solution, the tower base further includes: An annular groove is provided on the end face of the tower base, and a connecting platform is formed on the inner side of the annular groove on the end face of the tower base. Threads are provided on the outer wall of the connecting platform, and internal threads are provided on the inner side of the bottom port of the tower body. Coolant output channel: The coolant output channel is located on the end face of the connector, and the outer port of the coolant output channel protrudes outward to form the coolant output end. The adjacent towers are connected by a circulation pipeline that links the coolant output channel and the coolant input channel.

[0008] In the above technical solution, the storage tank further includes a water supply tank and a transition tank, and the circulation pipeline includes an infusion pipeline, a discharge pipeline, an intermediate pipeline and a return pipeline. The water supply tank is connected to the liquid inlet via a liquid delivery pipeline, the transition tank is connected to the coolant outlet via a discharge pipeline, the intermediate pipeline connects to multiple adjacent cooling towers, and the water supply tank and the transition tank are connected via a return pipeline.

[0009] In the above technical solution, further, the multiple cooling towers include: A flue gas cooling tower is used for introducing flue gas. Intermediate cooling towers, number of intermediate cooling towers ≥ 0; Smoke exhaust cooling tower; a smoke exhaust cooling tower is used for smoke exhaust. Among them, the cooling chamber inside the flue gas cooling tower is set as a primary cooling chamber, the cooling chamber inside the flue gas cooling tower is set as an N-level cooling chamber, and the cooling chamber inside the flue gas cooling tower is set as an N+1-level cooling chamber. The liquid input end of the upper tower of the flue gas cooling tower is connected to the water supply tank through a liquid delivery pipeline, and the coolant output end of the upper tower of the exhaust gas cooling tower is connected to the storage tank through a discharge pipeline. The flue gas cooling tower, the intermediate cooling tower and the exhaust gas cooling tower are connected by an intermediate pipeline.

[0010] Furthermore, the above technical solution also includes: The monitoring system includes a controller, temperature sensors, and pressure sensors. The temperature and pressure sensors are installed inside the tower. The controller is set up independently and receives data from the temperature and pressure sensors.

[0011] Furthermore, the above technical solution also includes: One-way valves include gas one-way valves and liquid one-way valves. Gas one-way valves are installed in the gas line, and liquid one-way valves are installed in the circulation line. Both the gas check valve and the liquid check valve are electrically controlled valves and are controlled by a controller.

[0012] In the above technical solution, furthermore, multiple auxiliary filters are provided and are equidistantly arranged along the height direction of the tower.

[0013] The beneficial effects of this utility model are as follows: 1. By using an auxiliary filter to break down the bubbles formed by the flue gas in the coolant, large bubbles are reduced to small bubbles, which helps to increase the contact area between the flue gas and the coolant, thereby effectively improving the cooling effect. Smaller bubbles are also easier to exchange heat and cool. 2. The coolant is room temperature water or a cooling solution at room temperature. Through multi-stage cooling, the cooling path of the flue gas is extended, thereby achieving the cooling effect. Moreover, the coolant is in a flowing state, which allows for real-time replenishment of cold coal and discharge of heat medium, thus not affecting the overall cooling effect, saving refrigeration energy consumption, helping to reduce energy loss, and thus improving enterprise efficiency. Attached Figure Description

[0014] Figure 1 This is a perspective view of one side of this utility model; Figure 2 This is a perspective view of the other side of this utility model; Figure 3 This is a schematic diagram of the cooling tower of this utility model; Figure 4 This is a logic block diagram of the control system of this utility model; The markings in the diagram represent: 11, Smoke inlet cooling tower; 111, Tower body; 1111, Gas inlet end; 1112, Gas outlet end; 1113, Coolant inlet end; 112, Tower base; 1121, Annular groove; 1122, Coolant outlet channel; 1123, Coolant outlet end; 12, Intermediate cooling tower; 13, Smoke exhaust cooling tower; 211, Water supply tank; 212, Transition tank; 221, Liquid delivery pipeline; 222, Discharge pipeline; 223, Intermediate pipeline; 224, Return pipeline; 3, Auxiliary filter screen; 4, Gas path; 51, Controller; 52, Temperature sensor; 53, Pressure sensor; 61, Gas check valve; 62, Liquid check valve. Detailed Implementation

[0015] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0016] Example 1:

[0017] This embodiment provides a multi-stage gradient quench tower, including: A cooling tower includes a tower body 111 and a tower base 112. A cooling chamber is provided inside the tower body 111, and the tower base 112 is connected to the bottom of the tower body 111. The circulation device includes a water storage tank and a circulation pipeline, the circulation pipeline connecting the water storage tank and the tower body 111; Auxiliary filter 3 is installed inside the tower body 111. The auxiliary filter 3 is broken through the smoke bubbles. The cooling towers are multiple in number, and the circulating pipelines connect the multiple cooling towers together. The multiple cooling towers are also connected by air passages 4.

[0018] As can be seen from this embodiment, a multi-stage gradient cooling tower includes multiple cooling towers, a circulation device, an auxiliary filter 3, and an air passage 4.

[0019] Multiple cooling towers include a tower body 111 and a tower base 112. The tower body 111 has a cooling cavity formed inside to contain coolant for cooling the flue gas.

[0020] The circulation device includes a storage tank and circulation pipelines. The circulation pipelines connect multiple cooling towers to the storage tank and circulate the coolant, thereby ensuring that the coolant in the cooling towers can always exchange heat with the incoming flue gas.

[0021] The auxiliary filter 3 is a filter structure made of woven metal wire mesh and is fixedly installed inside the tower body 111 by welding.

[0022] Multiple cooling towers are connected by circulation pipes and air passage 4. Flue gas passes through multiple cooling towers in sequence through air passage 4 and circulation device to achieve multi-stage gradient cooling effect. At the same time, the coolant used for heat exchange is discharged from the storage tank through circulation pipes and replaced with new coolant for circulation. The coolant is in a flowing state, which helps to improve the cooling effect. Furthermore, auxiliary filters 3 are installed in multiple cooling towers. When in use, auxiliary filters 3 can trap impurities in flue gas and coolant. At the same time, auxiliary filters 3 can break down bubbles formed by flue gas in coolant, thereby turning large bubbles into small bubbles, which helps to increase the contact area between flue gas and coolant, thus effectively improving the cooling effect. Smaller bubbles are also easier to exchange heat and cool. Furthermore, the coolant is room temperature water or a cooling solution at room temperature. Through multi-stage cooling, the cooling path of the flue gas is extended, thereby achieving a cooling effect. Moreover, the coolant is in a flowing state, allowing for real-time replenishment of cold coal and discharge of heat medium, thus not affecting the overall cooling effect, saving refrigeration energy consumption, helping to reduce energy loss, and thus improving enterprise efficiency.

[0023] Example 2:

[0024] This embodiment provides a multi-stage gradient quench tower, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0025] Tower body 111 includes: Gas inlet 1111, the gas inlet 1111 is set on the side wall of the bottom of the tower body 111, and the opening is higher than the tower base 112; Gas discharge end 1112 is located on the end face of the top of tower body 111. The gas discharge end 1112 and gas input end 1111 of adjacent tower bodies 111 are connected through gas passage 4. Coolant inlet 1113 is located on the wall of the top side of the tower body 111, and the circulation pipeline is connected to the coolant inlet 1113.

[0026] As can be seen from this embodiment, the tower body 111 is provided with a gas inlet 1111, a gas outlet 1112 and a coolant inlet 1113; The gas inlet 1111 is formed on the top of the tower body 111 and connected to the gas passage 4. The gas outlet 1112 is set on the side wall of the bottom of the tower body 111. The port of the gas outlet 1112 is higher than the tower base 112. Adjacent tower bodies 111 are connected by the gas passage 4 to connect adjacent gas inlet 1111 and gas outlet 1112 together, thereby realizing flue gas transportation.

[0027] The coolant inlet 1113 is formed at the bottom of the tower body 111 and away from the gas inlet 1111. The coolant inlet 1113 is used to connect to the circulation pipeline and input coolant into the cooling chamber inside the tower body 111.

[0028] Example 3:

[0029] This embodiment provides a multi-stage gradient quench tower, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0030] Tower base 112 includes: An annular groove 1121 is provided on the end face of the tower base 112, and a connecting platform is formed on the end face of the tower base 112 inside the annular groove 1121. A thread is provided on the outer wall of the connecting platform, and an internal thread is provided on the inner side of the bottom port of the tower body 111. Coolant output channel 1122 is provided on the end face of the connecting platform, and the outer port of the coolant output channel 1122 protrudes outward to form coolant output end 1123; Among them, the coolant output channel 1122 and the coolant input channel are connected by a circulation pipeline between adjacent tower bodies 111.

[0031] As can be seen from this embodiment, the tower base 112 is provided with an annular groove 1121 and a coolant output channel 1122; An annular groove 1121 is formed on the end face of the tower base 112. A connecting platform is formed on the end face of the tower base 112 inside the annular groove 1121. External threads are formed on the outer circumferential surface of the connecting platform. The lower end of the tower body 111 is an open port, and internal threads are formed on the inner wall of the port. The tower body 111 is fixed together with the connecting platform by threaded engagement and embedded in the inner side of the annular groove 1121. Furthermore, a sealing ring is provided on the inner side of the annular groove 1121, so that the tower body 111 and the tower base 112 can form a sealed and leak-proof cooling chamber after they are engaged. The coolant output channel 1122 is formed on the end face of the connecting platform, and the outer port of the coolant output end 1123 protrudes outward to form the coolant output end 1123 and connects to the circulation pipeline, which facilitates assembly during use.

[0032] Example 4:

[0033] This embodiment provides a multi-stage gradient quench tower, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0034] The water storage tank includes a water supply tank 211 and a transition tank 212, and the circulation pipeline includes an infusion pipeline 221, an outlet pipeline 222, an intermediate pipeline 223 and a return pipeline 224; The water supply tank 211 is connected to the liquid input end via a liquid delivery pipeline 221, the transition tank 212 is connected to the coolant output end 1123 via a discharge pipeline 222, the intermediate pipeline 223 connects to multiple adjacent cooling towers, and the water supply tank 211 and the transition tank 212 are connected via a return pipeline 224.

[0035] As can be seen from this embodiment, the water storage tank includes a water supply tank 211 and a transition tank 212, and the circulation pipeline includes an infusion pipeline 221, an outlet pipeline 222, an intermediate pipeline 223 and a return pipeline 224; The water supply tank 211 is connected to the coolant inlet 1113 on the tower body 111 via the liquid delivery pipeline 221, and the transition tank 212 is connected to the cooling outlet on the tower body 111 via the discharge pipeline 222. Furthermore, the tower bodies 111 of the multiple cooling towers are connected to the coolant inlet 1113 and the coolant outlet 1113 via an intermediate pipe 223. The water supply tank 211 and the transition tank 212 are connected by a return pipe 224. During use, the coolant is fed into the tower body 111 through the coolant inlet 1113 via the delivery pipe 221, and then sent to the storage tank through the coolant outlet 1123 via the drain pipe. The coolant stays in the transition tank 212 for a period of time to cool down, and after all the coolant in the water supply tank 211 has been delivered into the tower body 111, it is discharged into the transition tank 212. Furthermore, the amount of coolant discharged and input is the same as the amount of coolant in one tower body 111, which facilitates the replacement of coolant in stages and helps to make full use of the heat exchange effect of the coolant.

[0036] Example 5:

[0037] This embodiment provides a multi-stage gradient quench tower, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0038] Multiple cooling towers include: Smoke inlet cooling tower 11, smoke inlet cooling tower 11 is used for smoke inlet; Intermediate cooling tower 12, quantity of intermediate cooling tower 12 ≥ 0; Smoke exhaust cooling tower 13 is used for smoke exhaust; Among them, the cooling chamber inside the inlet cooling tower 11 is set as a primary cooling chamber, the cooling chamber inside the exhaust cooling tower is set as an N-level cooling chamber, and the cooling chamber inside the exhaust cooling tower 13 is set as an N+1-level cooling chamber.

[0039] As can be seen from this embodiment, the multiple cooling towers are arranged in the order of the beginning and end of the smoke inlet and the middle part of the smoke outlet, namely the smoke inlet cooling tower 11, the middle cooling tower 12 and the smoke outlet cooling tower 13. Furthermore, the cooling chamber in the flue gas cooling tower 11 is set as a primary cooling chamber, the cooling chamber in the intermediate cooling tower 12 is set as an N-stage cooling chamber, and the cooling chamber in the exhaust cooling tower 13 is set as an N+1 cooling chamber. The liquid input end of the upper tower body 111 of the flue gas cooling tower 11 is connected to the water supply tank 211 through the liquid delivery pipeline 221, and the coolant output end 1123 of the upper tower body 111 of the exhaust cooling tower 13 is connected to the storage tank through the discharge pipeline 222. The flue gas cooling tower 11, the intermediate cooling tower 12 and the exhaust cooling tower 13 are connected by the intermediate pipeline 223.

[0040] The coolant inlet 1113 of the flue gas cooling tower 11 is connected to the water supply tank 211 via a liquid delivery pipeline 221. The coolant outlet 1123 of the flue gas cooling tower 11 is connected to the coolant inlet 1113 of the intermediate cooling tower 12 via an intermediate pipeline 223. The coolant outlet 1123 of the intermediate cooling tower 12 is connected to the coolant inlet 1113 of the exhaust cooling tower 13 via an intermediate pipeline 223. The coolant outlet 1123 of the exhaust cooling tower 13 is connected to the transition tank 212 via a discharge pipeline 222.

[0041] The gas inlet end 1111 of the flue gas cooling tower 11 is connected to an external pipeline, and the gas outlet end of the flue gas cooling tower 11 is connected to the gas inlet end 1111 of the intermediate cooling tower 12 through the gas passage 4. The gas outlet end of the intermediate cooling tower 12 is connected to the gas inlet end 1111 of the exhaust cooling tower 13 through the gas passage 4. The flue gas flowing into the exhaust cooling tower 13 is discharged from the gas outlet end at the top of the tower body 111.

[0042] Furthermore, during use, the intermediate cooling tower 12 can be omitted, and the inlet cooling tower 11 and the exhaust cooling tower 13 can be directly connected, allowing for flexible configuration according to requirements.

[0043] Example 6:

[0044] This embodiment provides a multi-stage gradient quench tower, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0045] The monitoring system includes a controller 51, a temperature sensor 52, and a pressure sensor 53. The temperature sensor 52 and the pressure sensor 53 are installed inside the tower body 111. The controller 51 is set up independently and receives data from the temperature sensor 52 and the pressure sensor 53.

[0046] As can be seen from this embodiment, the monitoring system includes a controller 51, a temperature sensor 52, and a pressure sensor 53; By installing temperature sensor 52 and pressure sensor 53 inside the tower body 111, the temperature and pressure inside the tower body 111 can be monitored in real time and fed back through controller 51, thereby helping to improve operational safety.

[0047] Example 7:

[0048] This embodiment provides a multi-stage gradient quench tower, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0049] One-way valve, which includes a gas one-way valve 61 and a liquid one-way valve 62. The gas one-way valve 61 is installed on the gas line 4 and the liquid one-way valve 62 is installed on the circulation pipeline. Both the gas check valve 61 and the liquid check valve 62 are electrically controlled valves and are controlled by the controller 51.

[0050] As can be seen from this embodiment, the one-way valve includes a gas one-way valve 61 and a liquid one-way valve 62; Both the gas check valve 61 and the liquid check valve 62 are electrically controlled valves and are controlled by the controller 51. The controller 51 receives data from the temperature sensor 52 and the pressure sensor 53, and controls the gas check valve 61 and the liquid check valve 62 to open and close according to the data. Furthermore, the gas check valve 61 is normally open and is controlled to open and close by the control valve based on the data transmitted by the pressure sensor 53, while the liquid check valve 62 is opened and closed based on the real-time cooling temperature transmitted by the temperature sensor inside the tower body 111.

[0051] Example 8:

[0052] This embodiment provides a multi-stage gradient quench tower, which, in addition to the technical solutions of the above embodiments, also has the following technical features.

[0053] Multiple auxiliary filters 3 are provided and are equidistantly arranged along the height direction of the tower body 111.

[0054] As can be seen from this embodiment, by setting multiple auxiliary filters 3, the size of the bubbles formed by the flue gas in the coolant can be enhanced, thereby helping to improve the cooling effect.

[0055] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A multi-stage gradient quench tower, characterized in that it comprises: A cooling tower, comprising a tower body (111) and a tower base (112), wherein a cooling chamber is provided inside the tower body (111), and the tower base (112) is connected to the bottom of the tower body (111); A circulation device, comprising a water storage tank and a circulation pipeline, wherein the circulation pipeline connects the water storage tank and the tower body (111). An auxiliary filter (3) is installed inside the tower body (111) and the auxiliary filter (3) is broken through the smoke bubbles; The cooling towers are provided in multiple ways, the circulation pipeline connects the multiple cooling towers together, and the multiple cooling towers are connected by an air passage (4).

2. A multi-stage gradient quench tower according to claim 1, characterized in that The tower body (111) includes: Gas input terminal (1111), the gas input terminal (1111) is located on the side wall of the bottom of the tower body (111), and the opening is higher than the tower base (112). Gas discharge end (1112) is provided on the end face of the top of the tower body (111), and the gas discharge end (1112) and gas input end (1111) of adjacent tower bodies (111) are connected through gas passage (4); Coolant inlet (1113) is provided on the wall of the top side of the tower body (111), and the circulation pipeline is connected to the coolant inlet (1113).

3. A multi-stage gradient quench tower according to claim 2, wherein the tower Seat (112) includes: An annular groove (1121) is provided on the end face of the tower base (112), and a connecting platform is formed on the end face of the tower base (112) inside the annular groove (1121). A thread is provided on the outer wall of the connecting platform, and an internal thread is provided on the inner side of the bottom port of the tower body (111). Coolant output channel (1122), the coolant output channel (1122) is disposed on the end face of the connecting platform, and the outer port of the coolant output channel (1122) protrudes outward to form a coolant output end (1123). The adjacent tower bodies (111) are connected by a circulation pipeline, with the coolant output end (1123) and the coolant input end (1113) connected.

4. A multi-stage gradient quench tower according to claim 3, characterised in that The water storage tank includes a water supply tank (211) and a transition tank (212), and the circulation pipeline includes an infusion pipeline (221), an outlet pipeline (222), an intermediate pipeline (223), and a return pipeline (224). The water supply tank (211) is connected to the liquid input end via a liquid delivery pipeline (221), the transition tank (212) is connected to the coolant output end (1123) via a discharge pipeline (222), the intermediate pipeline (223) connects multiple adjacent cooling towers, and the water supply tank (211) and the transition tank (212) are connected via a return pipeline (224).

5. A multi-stage gradient quench tower according to claim 4, characterised in that, Multiple cooling towers include: A flue gas cooling tower (11) is used for flue gas intake; Intermediate cooling tower (12), the number of which is ≥0; Smoke exhaust cooling tower (13), said smoke exhaust cooling tower (13) is used for smoke exhaust; The cooling chamber inside the inlet cooling tower (11) is set as a primary cooling chamber, the cooling chamber inside the intermediate cooling tower (12) is set as an N-level cooling chamber, and the cooling chamber inside the exhaust cooling tower (13) is set as an N+1 level cooling chamber. The liquid input end of the upper tower body (111) of the flue gas cooling tower (11) is connected to the water supply tank (211) through the liquid delivery pipeline (221), and the coolant output end (1123) of the upper tower body (111) of the flue gas cooling tower (13) is connected to the storage tank through the discharge pipeline (222). The flue gas cooling tower (11), the intermediate cooling tower (12) and the flue gas cooling tower (13) are connected by the intermediate pipeline (223).

6. A multi-stage gradient quench tower according to claim 1 further characterized by include: The monitoring system includes a controller (51), a temperature sensor (52) and a pressure sensor (53). The temperature sensor (52) and the pressure sensor (53) are installed inside the tower body (111). The controller (51) is set up independently and receives data from the temperature sensor (52) and the pressure sensor (53).

7. A multi-stage gradient quench tower according to claim 1 further characterized by include: One-way valve, the one-way valve includes a gas one-way valve (61) and a liquid one-way valve (62), the gas one-way valve (61) is installed on the gas line (4), and the liquid one-way valve (62) is installed on the circulation pipeline; The gas check valve (61) and the liquid check valve (62) are both electrically controlled valves and are controlled by the controller (51).

8. A multi-stage gradient quench tower according to claim 1, characterized in that Multiple auxiliary filters (3) are provided and are equidistantly arranged along the height direction of the tower body (111).

Images