Desulfurization device for boiler flue gas treatment
By designing a water storage bin and pump system in the boiler flue gas desulfurization device, cold water is used to cool down and treat alkaline solutions, the problem of poor desulfurization effect in high temperature state is solved and the flue gas desulfurization effect is improved.
Patent Information
- Application Number
- CN202421422236.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-21
- Publication Date
- 2024-12-24
- Estimated Expiration
- 2034-06-21
AI Technical Summary
In the existing boiler flue gas desulfurization device, the alkaline solution has poor desulfurization effect at high temperature, resulting in poor desulfurization effect.
A sufficient desulfurization mechanism including a water storage compartment, a pump, a shunt pipe fitting, a pressure opening valve and a desulfurization inner cylinder is designed. Cold water is extracted through the pump and transported to the water storage compartment through the shunt pipe fitting. The cold water and alkaline solution are heat exchanged and cooled down. This improves the desulfurization effect.
It effectively reduces the temperature of the alkaline solution, improves the desulfurization effect of boiler flue gas, and avoids the problem of desulfurization effect deterioration under high temperature conditions.
Smart Images
Figure CN222219153U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of flue gas treatment, and in particular to a desulfurization device for boiler flue gas treatment. Background Art
[0002] Flue gas desulfurization refers to the removal of sulfur oxides from flue gas or other industrial waste gases, among which sulfur oxides mainly refer to SO2 and SO3. Small and medium-sized boilers burning medium and low sulfur coal generally use dry desulfurization methods. These desulfurization technologies basically use calcium-based absorbents such as lime or slaked lime.
[0003] A Chinese patent discloses a flue gas desulfurization device with a publication number of CN210356645U. The technical solution disclosed in the patent document is as follows: it includes a main box body, a flue gas exhaust pipe is fixedly connected to one side wall of the main box body, one end of the flue gas exhaust pipe passes through the main box body and is located inside the main box body, an exhaust pipe is fixedly connected to the upper end of the main box body, and the interior of the main box body is connected to the outside through the exhaust pipe, and a pair of slide rails are fixedly connected to the inside of the main box body.
[0004] In order to solve the problem of high maintenance cost and inconvenience of popularization of the existing structure, the existing technology adopts a desulfurization method combining activated carbon and alkaline solution for treatment. However, the desulfurization effect of boiler flue gas is poor. The temperature of boiler flue gas is high, and continuous desulfurization treatment will cause the temperature of the alkaline solution to rise. The desulfurization effect of the alkaline solution under high temperature state is poor and needs to be improved. Utility Model Content
[0005] The utility model aims to provide a desulfurization device for treating boiler flue gas, so as to solve the problem in the prior art that the desulfurization effect becomes worse due to the increase of the temperature of the alkaline solution.
[0006] The utility model provides the following technical solutions: a desulfurization device for boiler flue gas treatment, comprising a supporting base, on which a full desulfurization mechanism is arranged, the full desulfurization mechanism comprising a water storage tank, the water storage tank is fixedly installed on the top of the supporting base, a diversion pipe fitting 1 is fixedly connected to the left side of the water storage tank, a pump is fixedly installed to the left side of the diversion pipe fitting 1, the output pipe of the pump is fixedly connected to the left side of the diversion pipe fitting 1, a diversion pipe fitting 2 is fixedly connected to the right side of the water storage tank, a pressure opening valve is fixedly connected to the right side of the diversion pipe fitting 2, a top plate is fixedly installed on the top of the water storage tank, a desulfurization inner cylinder located in the inner cavity of the water storage tank is fixedly installed on the bottom of the top plate, the bottom of the desulfurization inner cylinder is fixedly connected to the top of the supporting base, and the inner cavity of the desulfurization inner cylinder is filled with an alkaline solution.
[0007] As a preferred embodiment of the above technical solution, a through hole is opened on the front side of the water storage tank, and a copper plate is fixedly installed on the inner wall of the through hole.
[0008] As a preferred embodiment of the above technical solution, a chip temperature sensor is fixedly installed on the front side of the copper plate, a heat exchange protrusion is fixedly connected to the back side of the copper plate, and the chip temperature sensor and the pump are both connected to the external controller with electrical signals.
[0009] As a preferred embodiment of the above technical solution, the full desulfurization mechanism also includes an air intake pipe and a rotating connecting pipe, the air intake pipe is fixedly connected to the center of the bottom of the support base, and the rotating connecting pipe is fixedly connected to the center of the top of the support base.
[0010] As a preferred embodiment of the above technical solution, the top of the rotating connecting pipe is rotatably connected to a hollow block, the outer wall of the hollow block is fixedly connected to a branch pipe, and the bottom of the branch pipe is fixedly connected to a folded pipe.
[0011] As a preferred embodiment of the above technical solution, a raised ring is fixedly installed on the top of the top plate, a rubber ring is fixedly connected to the inner wall of the raised ring, a storage barrel is movably inserted in the inner cavity of the raised ring, and the outer wall of the storage barrel is movably connected to the inner wall of the rubber ring.
[0012] As a preferred embodiment of the above technical solution, a partition net is fixedly installed at the bottom of the inner wall of the storage barrel, and the inner cavity of the storage barrel is filled with activated carbon.
[0013] Compared with the prior art, the beneficial effects of the utility model are:
[0014] The utility model can draw cold water from the outside through the design of the pump machine, and then evenly transport the cold water to the inner cavity of the water storage tank through the diversion pipe fitting 1. The original water inside the water storage tank will be replaced through the diversion pipe fitting 2 and the pressure opening valve. During the flow of cold water inside the water storage tank, it will exchange heat with the alkaline solution inside the desulfurization inner cylinder, thereby realizing the function of cooling the alkaline solution and avoiding the problem that the desulfurization effect will be deteriorated due to the heating of the alkaline solution. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a three-dimensional diagram of the utility model;
[0016] Figure 2 This is a schematic diagram of the structure of the water storage tank of the utility model;
[0017] Figure 3 This is a schematic diagram of the structure of the copper plate of the utility model;
[0018] Figure 4 This is a schematic diagram of the cutaway structure of the desulfurization inner cylinder of the utility model;
[0019] Figure 5 It is a schematic diagram of the connection structure between the top plate and the storage barrel of the utility model.
[0020] In the figure: 1. Support base; 2. Full desulfurization mechanism; 21. Water storage tank; 211. Diverter pipe fitting 1; 212. Pump; 213. Diverter pipe fitting 2; 214. Pressure opening valve; 215. Copper plate; 216. Chip temperature sensor; 217. Heat exchange protrusion; 22. Top plate; 221. Protruding ring; 222. Rubber ring; 223. Storage barrel; 224. Partition net; 23. Desulfurization inner barrel; 24. Inlet pipe; 241. Rotary connecting pipe; 242. Hollow block; 243. Branch pipe; 244. Folding pipe. DETAILED DESCRIPTION
[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.
[0022] like Figure 1-Figure 5 As shown, the utility model provides a technical solution: a desulfurization device for boiler flue gas treatment, comprising a supporting base 1, a full desulfurization mechanism 2 is arranged on the supporting base 1, the full desulfurization mechanism 2 comprises a water storage tank 21, the water storage tank 21 is fixedly installed on the top of the supporting base 1, a shunt pipe 211 is fixedly connected to the left side of the water storage tank 21, a pump 212 is fixedly installed to the left side of the shunt pipe 211, the output pipe of the pump 212 is fixedly connected to the left side of the shunt pipe 211, a shunt pipe 213 is fixedly connected to the right side of the water storage tank 21, a pressure opening valve 214 is fixedly connected to the right side of the shunt pipe 213, a top plate 22 is fixedly installed on the top of the water storage tank 21, a desulfurization inner cylinder 23 located in the inner cavity of the water storage tank 21 is fixedly installed at the bottom of the top plate 22, and the bottom of the desulfurization inner cylinder 23 is fixedly connected to the top of the supporting base 1. The inner cavity of the desulfurization inner cylinder 23 is filled with an alkaline solution. The water inlet pipe of the pump 212 is connected to the external cold water source. The pump 212 is controlled to extract external cold water and evenly transport it to the water storage tank 21. The original water inside the water storage tank 21 will be replaced through the diversion pipe 213 and the pressure opening valve 214. During the flow of cold water inside the water storage tank 21, it will exchange heat with the alkaline solution inside the desulfurization inner cylinder 23 to achieve the function of cooling the alkaline solution and ensure the desulfurization effect of the alkaline solution. The pressure opening valve 214 is an existing structure. It is a valve body that opens after being subjected to pressure. It can be opened synchronously when the pump 212 is running to release the original water inside the water storage tank 21. The bottom of the support base 1 includes a manual gate valve. The manual gate valve can be opened to discharge the alkaline solution inside the desulfurization inner cylinder 23.
[0023] As an implementation method in this embodiment, Figure 3As shown, a through hole is opened on the front of the water storage tank 21, and a copper plate 215 is fixedly installed on the inner wall of the through hole. A patch temperature sensor 216 is fixedly installed on the front of the copper plate 215, and a heat exchange protrusion 217 is fixedly connected to the back of the copper plate 215. The patch temperature sensor 216 and the pump 212 are both connected to the external controller by electrical signals. The patch temperature sensor 216 is an existing structure, and the model can be set to BD-PT100-X. The patch temperature sensor 216 can pass through the copper plate 215 to The temperature of the water inside the water storage tank 21 is monitored. After the temperature reaches a preset value, the pump 212 is controlled by an external controller to exchange heat and cool the alkaline solution, thereby avoiding the problem of large energy consumption caused by continuous operation of the pump 212. The heat exchange protrusion 217 can enable the copper plate 215 to quickly exchange heat with the water, thereby improving the timeliness of the temperature measurement of the chip temperature sensor 216. By arranging the chip temperature sensor 216 on the outside, it is convenient for users to maintain the chip temperature sensor 216.
[0024] As an implementation method in this embodiment, Figure 4 , Figure 5 As shown, the full desulfurization mechanism 2 also includes an air intake pipe 24 and a rotating connecting pipe 241. The air intake pipe 24 is fixedly connected to the center of the bottom of the support base 1, and the rotating connecting pipe 241 is fixedly connected to the center of the top of the support base 1. The top of the rotating connecting pipe 241 is rotatably connected with a hollow block 242, and a branch pipe 243 is fixedly connected to the outer wall of the hollow block 242. The bottom of the branch pipe 243 is fixedly connected with a folded pipe 244. A raised ring 221 is fixedly installed on the top of the top plate 22, and a rubber ring 222 is fixedly connected to the inner wall of the raised ring 221. A storage barrel 223 is movably inserted in the inner cavity of the raised ring 221, and the outer wall of the storage barrel 223 is movably connected to the inner wall of the rubber ring 222. A partition net is fixedly installed on the bottom of the inner wall of the storage barrel 223 224, the inner cavity of the storage barrel 223 is filled with activated carbon, and the flue gas is introduced from the air inlet pipe 24, and the flue gas is then ejected from the folded tube 244 into the inner cavity of the desulfurization inner barrel 23. Through the design of the rotating connecting tube 241, the folded tube 244 is rotated as a whole and connected to the top of the supporting base 1, and then the reaction force of the jet at the folded tube 244 can drive the folded tube 244 to rotate as a whole, thereby improving the uniformity of flue gas discharge into the alkaline solution and increasing the desulfurization effect. The partition 224 facilitates the gas to flow through the inner cavity of the storage barrel 223, and at the same time limits the activated carbon in the inner cavity of the storage barrel 223. The connection relationship design between the raised ring 221 and the storage barrel 223 facilitates the user to disassemble and assemble the storage barrel 223 to replace the activated carbon.
[0025] Working principle: Flue gas is introduced from the air inlet pipe 24, and then the flue gas is rotated and ejected from the folded pipe 244, uniformly entering the alkaline solution to achieve the function of primary desulfurization. The flue gas then flows through the interior of the storage barrel 223, and the activated carbon performs secondary adsorption desulfurization treatment on the flue gas. The water inlet pipe of the pump 212 is pre-connected to the external cold water source. If the temperature of the alkaline solution is high, the pump 212 is controlled to draw external cold water to perform heat exchange and cooling treatment on the alkaline solution.
[0026] The above embodiments are only used to illustrate the technical solution of the present invention, but not to limit it.
Claims
1. A desulfurization device for treating boiler flue gas, comprising a support base (1), characterized in that: The support base (1) is provided with a full desulfurization mechanism (2), the full desulfurization mechanism (2) comprising a water storage tank (21), the water storage tank (21) being fixedly mounted on the top of the support base (1), the left side of the water storage tank (21) being fixedly connected to a flow diversion pipe (211), the left side of the flow diversion pipe (211) being fixedly mounted with a pump (212), the output pipe of the pump (212) being fixedly connected to the left side of the flow diversion pipe (211), the water storage tank (2 The right side of the water storage tank (21) is fixedly connected to a second diversion pipe fitting (213), the right side of the second diversion pipe fitting (213) is fixedly connected to a pressure opening valve (214), the top of the water storage tank (21) is fixedly installed with a top plate (22), the bottom of the top plate (22) is fixedly installed with a desulfurization inner cylinder (23) located in the inner cavity of the water storage tank (21), the bottom of the desulfurization inner cylinder (23) is fixedly connected to the top of the support base (1), and the inner cavity of the desulfurization inner cylinder (23) is filled with an alkaline solution.
2. A desulfurization device for boiler flue gas treatment according to claim 1, characterized in that: A through hole is provided on the front side of the water storage bin (21), and a copper plate (215) is fixedly mounted on the inner wall of the through hole.
3. A desulfurization device for boiler flue gas treatment according to claim 2, characterized in that: A patch-type temperature sensor (216) is fixedly mounted on the front side of the copper plate (215), and a heat exchange protrusion (217) is fixedly connected to the back side of the copper plate (215). The patch-type temperature sensor (216) and the pump (212) are both connected to an external controller via electrical signals.
4. A desulfurization device for boiler flue gas treatment according to claim 1, characterized in that: The full desulfurization mechanism (2) further comprises an air intake pipe (24) and a rotating connecting pipe (241), wherein the air intake pipe (24) is fixedly connected to the center of the bottom of the support base (1), and the rotating connecting pipe (241) is fixedly connected to the center of the top of the support base (1).
5. A desulfurization device for boiler flue gas treatment according to claim 4, characterized in that: The top of the rotating connection tube (241) is rotatably connected to a hollow block (242), the outer wall of the hollow block (242) is fixedly connected to a branch tube (243), and the bottom of the branch tube (243) is fixedly connected to a folded tube (244).
6. A desulfurization device for boiler flue gas treatment according to claim 1, characterized in that: A raised ring (221) is fixedly mounted on the top of the top plate (22); a rubber ring (222) is fixedly connected to the inner wall of the raised ring (221); a material storage barrel (223) is movably inserted into the inner cavity of the raised ring (221); and the outer wall of the material storage barrel (223) is movably connected to the inner wall of the rubber ring (222).
7. A desulfurization device for boiler flue gas treatment according to claim 6, characterized in that: A partition net (224) is fixedly mounted on the bottom of the inner wall of the storage barrel (223), and the inner cavity of the storage barrel (223) is filled with activated carbon.