Desulfurization inlet spray cooling system
By using a desulfurization inlet spray cooling system that is linked to the spray component and the temperature transmitter in the desulfurization system, the problems of large water consumption and poor cooling effect in the prior art are solved, and efficient and economical flue gas cooling effect is achieved.
Patent Information
- Application Number
- CN202421236931.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-31
- Publication Date
- 2025-02-14
- Estimated Expiration
- 2034-05-31
AI Technical Summary
In the existing desulfurization system, cold water spraying and cooling is directly installed at the flue gas inlet, which consumes a large amount of water and is costly, and the water pipes are not in sufficient contact with the flue gas, which affects the cooling effect.
A desulfurization inlet spray cooling system is designed, and the spraying component is linked to the temperature transmitter to automatically control the amount of spray water, and spray and cool the flue gas through the nozzle to ensure that the flue gas and water contact is more sufficient.
The rational use of water resources has been achieved, the waste of water and costs of water sources has been reduced, and the effect of flue gas cooling has been improved.
Smart Images
Figure CN222468585U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of desulfurization, and in particular relates to a desulfurization inlet spray cooling system. Background Art
[0002] In order to ensure that the flue gas emission meets the indicators, it is usually necessary to perform desulfurization treatment on the flue gas to remove sulfur dioxide in the flue gas, so as to avoid atmospheric pollution that damages the ozone layer and produces acid rain. In the existing flue gas treatment, the temperature of the flue gas is sometimes high when it enters the desulfurization system, which easily leads to low desulfurization efficiency. The existing method directly installs a water pipe at the flue gas inlet, and cools the flue gas by passing cold water into the flue gas inlet of the desulfurization system. However, this operation method consumes a large amount of water and has a high cost. In addition, the direct contact between the water outlet of the water pipe and the flue gas is insufficient, which affects the cooling effect on the flue gas. Utility Model Content
[0003] The embodiment of the utility model provides a desulfurization inlet spray cooling system, which aims to solve the technical problems that a water pipe is directly installed at the inlet of the existing desulfurization system, and a large amount of water is consumed and the cost is high to cool the flue gas by passing cold water; and the water outlet directly from the water pipe is not in sufficient contact with the flue gas, thereby affecting the cooling effect of the flue gas.
[0004] To achieve the above purpose, the technical solution adopted by the utility model is: to provide a desulfurization inlet spray cooling system, which is installed on the inlet pipeline of the desulfurization system, and the desulfurization system includes a dust collector, including:
[0005] A spray assembly, a first water inlet pipe and a second water inlet pipe arranged in parallel, and nozzles respectively connected to the first water inlet pipe and the second water inlet pipe, wherein the first water inlet pipe and the second water inlet pipe are both provided with regulating valves, the first water inlet pipe is used to be connected to the flushing water of the dust collector, and the second water inlet pipe is used to be connected to the fire water of the factory;
[0006] A first temperature transmitter is disposed in the inlet pipe and located at the smoke inlet side of the spray assembly;
[0007] The second temperature transmitter is arranged in the inlet pipe and located at the smoke outlet side of the spray assembly.
[0008] In a possible implementation, the desulfurization inlet spray cooling system further includes:
[0009] The flue gas mixer is arranged in the inlet pipe and located between the spray assembly and the second temperature transmitter.
[0010] In a possible implementation, the spray assembly further includes:
[0011] a main pipe, connected to the first water inlet pipe and the second water inlet pipe respectively;
[0012] An electric control valve, arranged on the main pipe;
[0013] A plurality of spray pipes are respectively connected to the main pipe, and each of the spray pipes is provided with a switch valve;
[0014] Wherein, the nozzle is arranged on the spray pipe.
[0015] In a possible implementation, the inner surface of the inlet pipe is recessed to form a collecting groove, a drain valve is provided at the bottom of the collecting groove, and the collecting groove is located at the smoke outlet side of the spray assembly.
[0016] In a possible implementation, a drainage pipe is further provided at the bottom of the collecting tank, and the drainage pipe includes a plurality of joints, and the plurality of joints are connected to the plurality of spray pipes in a one-to-one correspondence.
[0017] In a possible implementation, an inner surface of the inlet pipe located between the collecting tank and the spray assembly gradually slopes downward in a direction approaching the collecting tank.
[0018] In a possible implementation, a plurality of the nozzles are spaced apart along the axial direction of the spray pipe, and the nozzles face away from the smoke inlet side of the inlet pipe.
[0019] In a possible implementation, a protective shell is fixedly connected to a side of each of the spray pipes facing the smoke inlet side of the inlet pipe, and the protective shell is opened away from the smoke inlet side of the inlet pipe to allow the nozzle to extend.
[0020] In a possible implementation, the protective shell is an angle steel, and an end of the angle steel is fixed to an inner wall of the inlet pipe.
[0021] In a possible implementation, an installation opening is provided on the outer periphery of the inlet pipe, and a connecting flange is provided at the installation opening. The ends of the first temperature transmitter and the second temperature transmitter are fixedly connected to a connecting disk, and the connecting disk is connected to the connecting flange via a threaded connector.
[0022] Compared with the prior art, the scheme shown in the embodiment of the present application is that the flue gas enters the desulfurization system from the inlet pipe, and in the process of the flue gas passing through the inlet pipe, the flue gas temperature at the smoke inlet of the inlet pipe is measured by the first temperature transmitter. When it exceeds the preset value, the spray assembly automatically opens to spray dust collector flushing water or fire water into the inlet pipe; and in the process of spraying, the flue gas temperature at the smoke outlet of the inlet pipe is measured by the second temperature transmitter. When the flue gas temperature is lower, the amount of water sprayed is adjusted by the regulating valve to be less, thereby achieving the purpose of rational use of water resources. The desulfurization inlet spray cooling system of the utility model can control the automatic opening and closing of the spray assembly through the detection indication of the first temperature transmitter. The system is easy to use, can cool down the flue gas in time, and can ensure the treatment efficiency of the flue gas. The second temperature transmitter is linked with the regulating valves on the first water inlet pipe and the second water inlet pipe, so the spray water volume can be adjusted in real time according to the change of the flue gas temperature, so as to avoid the waste of water resources and reduce the cost. During the operation of the spray assembly of the present application, the flushing water of the heavy demister of the desulfurization system is reused, and the fire water is used as a backup, so that the fire water can be used to cool the flue gas after the flushing water system fails, so as to ensure the normal use of the spray assembly. The nozzle is used for spraying to achieve the cooling of the flue gas. Compared with the traditional direct water pipe outflow of cooling water, the structure of this embodiment has more sufficient contact with the flue gas and the cooling effect is better. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 A schematic diagram of the structure of the desulfurization inlet spray cooling system in use provided by an embodiment of the utility model;
[0024] Figure 2 This is a schematic diagram of the structure of the spray assembly and the drainage pipeline used in the embodiment of the utility model ( Figure 1 Right-side perspective);
[0025] Figure 3 Schematic diagram of the cross-sectional structure of the protective shell and the spray pipe used in the embodiment of the utility model ( Figure 1 upward perspective).
[0026] Description of reference numerals:
[0027] 10-inlet pipe; 11-collecting tank; 12-drain valve; 13-drain pipe; 14-connector; 15-installation port; 16-connecting flange;
[0028] 20-spray assembly; 21-first water inlet pipe; 22-second water inlet pipe; 23-nozzle; 24-regulating valve; 25-main pipe; 26-electric control valve; 27-spray pipe; 28-protective shell;
[0029] 30- first temperature transmitter;
[0030] 40- second temperature transmitter;
[0031] 50-smoke mixer;
[0032] 60-Connection plate. DETAILED DESCRIPTION
[0033] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.
[0034] In the claims, specification and the above drawings of the present utility model, unless otherwise clearly defined, the terms "first", "second" or "third" are used to distinguish different objects, rather than to describe a specific order. In the claims, specification and the above drawings of the present utility model, unless otherwise clearly defined, the terms "fixed connection" or "fixed connection" should be understood in a broad sense, that is, any connection method without displacement relationship and relative rotation relationship between the two, that is, including non-detachable fixed connection, detachable fixed connection, integrated connection and fixed connection through other devices or elements.
[0035] In the claims, specification and drawings of the present utility model, if the terms "include", "have" and their variations are used, they are intended to mean "including but not limited to".
[0036] Please also read Figures 1 to 3 , the desulfurization inlet spray cooling system provided by the utility model is now described. The desulfurization inlet spray cooling system is used to be installed on the inlet pipe 10 of the desulfurization system, the desulfurization system includes a dust collector, a spray assembly 20, a first temperature transmitter 30 and a second temperature transmitter 40, the spray assembly 20 includes a first water inlet pipe 21 and a second water inlet pipe 22 arranged in parallel, and a nozzle 23 respectively connected to the first water inlet pipe 21 and the second water inlet pipe 22, and a regulating valve 24 is provided on the first water inlet pipe 21 and the second water inlet pipe 22, the first water inlet pipe 21 and the second water inlet pipe 22 are connected to the factory fire water; the first temperature transmitter 30 is arranged in the inlet pipe 10 and is located on the smoke inlet side of the spray assembly 20; the second temperature transmitter 40 is arranged in the inlet pipe 10 and is located on the smoke outlet side of the spray assembly 20.
[0037] Compared with the prior art, the desulfurization inlet spray cooling system provided in the present embodiment is that the flue gas enters the desulfurization system from the inlet pipe 10. In the process of the flue gas passing through the inlet pipe 10, the flue gas temperature at the smoke inlet of the inlet pipe 10 is measured by the first temperature transmitter 30. When it exceeds the preset value, the spray assembly 20 automatically opens to spray dust collector flushing water or fire fighting water into the inlet pipe 10; and in the process of spraying, the flue gas temperature at the smoke outlet of the inlet pipe 10 is measured by the second temperature transmitter 40. When the flue gas temperature is lower, the amount of water sprayed is adjusted by the regulating valve 24 to be less, thereby achieving the purpose of rational use of water resources. The desulfurization inlet spray cooling system of the utility model can control the automatic opening and closing of the spray assembly 20 through the detection indication of the first temperature transmitter 30. It is easy to use, and the flue gas is cooled in time, which can ensure the treatment efficiency of the flue gas; the second temperature transmitter 40 is linked with the regulating valve 24 on the first water inlet pipe 21 and the second water inlet pipe 22, so that the spray water volume can be adjusted in real time according to the change of the flue gas temperature, thereby avoiding the waste of water resources and reducing costs; during the operation of the spray assembly 20 of the present application, by reusing the flushing water of the heavy demister of the desulfurization system and using fire water as a backup, it can be ensured that the fire water can be used to cool the flue gas after a fault in the flushing water system, thereby ensuring the normal use of the spray assembly 20; the nozzle 23 is used for spraying to achieve the cooling of the flue gas. Compared with the traditional direct water pipe outflow of cooling water, the structure of this embodiment has more sufficient contact with the flue gas and a better cooling effect.
[0038] In some embodiments, an improved implementation of the above-mentioned desulfurization inlet spray cooling system can be adopted as follows Figure 1 See the structure shown. Figure 1 The desulfurization inlet spray cooling system also includes a flue gas mixer 50 , which is arranged in the inlet pipe 10 and between the spray assembly 20 and the second temperature transmitter 40 .
[0039] Since the flue gas is cooled when passing through the spray assembly 20, and then passes through the flue gas mixer 50, the temperature of the flue gas passing through the second temperature transmitter 40 can be uniform, thereby avoiding the measurement error of the second temperature transmitter 40 caused by the large temperature difference at different positions of the flue gas. For example, if the measurement value of the second temperature transmitter 40 is higher than the average temperature of the flue gas after cooling, it will cause a waste of water resources; if the measurement value of the second temperature transmitter 40 is lower than the average temperature of the flue gas after cooling, it will result in less spray water and poor cooling effect on the flue gas.
[0040] In some embodiments, a specific implementation of the spray assembly 20 can be as follows: Figure 2 See the structure shown. Figure 2The spray assembly 20 further includes a main pipe 25, an electric control valve 26 and a plurality of spray pipes 27. The main pipe 25 is respectively connected to the first water inlet pipe 21 and the second water inlet pipe 22; the electric control valve 26 is arranged on the main pipe 25; the plurality of spray pipes 27 are respectively connected to the main pipe 25, and each spray pipe 27 is provided with a switch valve; wherein the nozzle 23 is arranged on the spray pipe 27. The water in the first water inlet pipe 21 or the second water inlet pipe 22 enters the main pipe 25, and the water in the main pipe 25 flows into each spray pipe 27. The plurality of spray pipes 27 work at the same time, and the spraying covers a large area, which can quickly cool down the smoke when it passes through, thereby improving the cooling efficiency of the smoke.
[0041] In some embodiments, an improved implementation of the inlet pipe 10 can be as follows: Figure 1 See the structure shown. Figure 1 The inner surface of the inlet pipe 10 is concave to form a collection tank 11, and a drain valve 12 is provided at the bottom of the collection tank 11. The collection tank 11 is located at the smoke outlet side of the spray assembly 20. The water after spraying will flow into the collection tank 11. By opening the drain valve 12 at the bottom of the collection tank 11, the water in the collection tank 11 can be cleaned to prevent the spray water from accumulating in the inlet pipe 10 and flowing into the desulfurization system.
[0042] In some embodiments, an improved implementation of the above-mentioned collecting tank 11 can be adopted as follows Figure 2 See the structure shown. Figure 2 A drainage pipe 13 is also provided at the bottom of the collection tank 11, and the drainage pipe 13 includes a plurality of joints 14, and the plurality of joints 14 are connected to a plurality of spray pipes 27 one by one. When the spray assembly 20 is deactivated, the drainage pipe 13 can be opened to facilitate draining the water inside each spray pipe 27.
[0043] In some embodiments, an improved implementation of the inlet pipe 10 can be as follows: Figure 1 See the structure shown. Figure 1 The inner surface of the inlet pipe 10 between the collecting tank 11 and the spray assembly 20 gradually slopes downward in the direction close to the collecting tank 11. When the water sprayed from the nozzle 23 flows through the inclined surface, it will quickly flow into the collecting tank 11 under the inclined trend of the surface, thereby preventing the water from accumulating on the inner surface of the inlet pipe 10, not being thoroughly cleaned, and deteriorating and stinking.
[0044] In some embodiments, an improved embodiment of the nozzle 23 can be adopted as follows Figure 1 to Figure 2 See the structure shown. Figure 1 to Figure 2A plurality of nozzles 23 are arranged at intervals along the axial direction of the spray pipe 27, and the nozzles 23 are facing away from the smoke inlet side of the inlet pipe 10. A plurality of nozzles 23 are correspondingly arranged on each spray pipe 27, and the plurality of nozzles 23 of the same spray pipe 27 are arranged at intervals, and all the nozzles 23 on the plurality of spray pipes are distributed in an array in the inlet pipe 10, thereby improving the cooling efficiency of the smoke.
[0045] In some embodiments, an improved embodiment of the spray assembly 20 can be as follows: Figure 1 and Figure 3 See the structure shown. Figure 1 and Figure 3 Each spray pipe 27 is fixedly connected with a protective shell 28 on one side facing the smoke inlet side of the inlet pipe 10, and the protective shell 28 is opened on the smoke inlet side of the inlet pipe 10 so that the nozzle 23 can be extended. By providing the protective shell 28, on the one hand, the nozzle 23 can be prevented from being blocked by impurities in the smoke and affecting the cooling effect, and on the other hand, the spray pipe 27 can be protected, the wear of the spray pipe 27 by dust in the smoke can be reduced, and the service life of the spray pipe 27 can be extended.
[0046] Specifically, the protective shell 28 is an angle steel, and the end of the angle steel is fixed to the inner wall of the inlet pipe 10. The angle steel can be tangent to the outer peripheral surface of the spray pipe 27. In this case, the angle steel can support the spray pipe 27 to prevent the spray pipe 27 from bending. The angle steel can also have a certain distance from the spray pipe 27 for easy installation.
[0047] In some embodiments, an improved implementation of the inlet pipe 10 can be as follows: Figure 1 See the structure shown. Figure 1 , an installation opening 15 is provided on the outer periphery of the inlet pipe 10, and a connecting flange 16 is provided at the installation opening 15. The ends of the first temperature transmitter 30 and the second temperature transmitter 40 are fixedly connected with a connecting plate 60, and the connecting plate 60 is connected to the connecting flange 16 through a threaded connector. For example, when installing the first temperature transmitter 30, the first temperature transmitter 30 is extended into the inlet pipe 10 from the installation opening 15, and the hole position on the connecting plate 60 is aligned with the hole position on the connecting flange 16, and then the fixing operation is completed by tightening the threaded connector (bolts and nuts). The installation process of the second temperature transmitter 40 is similar. The connecting plate 60 in this embodiment realizes the installation of the first temperature transmitter 30 and the second temperature transmitter 40, and the installation effect is stable, and it can facilitate the maintenance and replacement of the first temperature transmitter 30 and the second temperature transmitter 40, and is convenient to use.
[0048] 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 and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A desulfurization inlet spray cooling system, used to be installed on the inlet pipe of a desulfurization system, wherein the desulfurization system includes a dust collector, characterized in that: include: A spray assembly, comprising a first water inlet pipe and a second water inlet pipe arranged in parallel, and nozzles respectively connected to the first water inlet pipe and the second water inlet pipe, wherein the first water inlet pipe and the second water inlet pipe are both provided with regulating valves, the first water inlet pipe is used to be connected to flushing water of the dust collector, and the second water inlet pipe is used to be connected to fire-fighting water of the factory; A first temperature transmitter is disposed in the inlet pipe and located at the smoke inlet side of the spray assembly; The second temperature transmitter is arranged in the inlet pipe and located at the smoke outlet side of the spray assembly.
2. The desulfurization inlet spray cooling system according to claim 1, characterized in that: The desulfurization inlet spray cooling system also includes: The flue gas mixer is arranged in the inlet pipe and located between the spray assembly and the second temperature transmitter.
3. The desulfurization inlet spray cooling system according to claim 1, characterized in that: The spray assembly also includes: a main pipe, connected to the first water inlet pipe and the second water inlet pipe respectively; An electric control valve, arranged on the main pipe; A plurality of spray pipes are respectively connected to the main pipe, and each of the spray pipes is provided with a switch valve; Wherein, the nozzle is arranged on the spray pipe.
4. The desulfurization inlet spray cooling system according to claim 3, characterized in that: The inner surface of the inlet pipe is concave to form a collecting groove, and a drainage valve is provided at the bottom of the collecting groove. The collecting groove is located at the smoke outlet side of the spray assembly.
5. The desulfurization inlet spray cooling system according to claim 4, characterized in that: A drainage pipe is also provided at the bottom of the collecting tank. The drainage pipe includes a plurality of joints. The plurality of joints are connected to the plurality of spray pipes in a one-to-one correspondence.
6. The desulfurization inlet spray cooling system according to claim 4, characterized in that: The inner surface of the inlet pipe located between the collecting tank and the spray assembly gradually slopes downward in a direction close to the collecting tank.
7. The desulfurization inlet spray cooling system according to claim 3, characterized in that: A plurality of nozzles are arranged at intervals along the axial direction of the spray pipe, and the nozzles face away from the smoke inlet side of the inlet pipe.
8. The desulfurization inlet spray cooling system according to claim 3, characterized in that: A protective shell is fixedly connected to one side of each of the spray pipes facing the smoke inlet side of the inlet pipe, and the protective shell is opened away from the smoke inlet side of the inlet pipe so that the nozzle can be extended.
9. The desulfurization inlet spray cooling system according to claim 8, characterized in that: The protective shell is an angle steel, and the end of the angle steel is fixedly connected to the inner wall of the inlet pipe.
10. The desulfurization inlet spray cooling system according to claim 1, characterized in that: The outer periphery of the inlet pipe is provided with a placement opening, and the placement opening is provided with a connecting flange. The ends of the first temperature transmitter and the second temperature transmitter are both fixedly connected with a connecting disk, and the connecting disk is connected to the connecting flange through a threaded connector.