Garbage incinerator with water spraying cooling function

Abstract

The utility model discloses a garbage incinerator with a water spraying cooling function, which relates to the technical field of cooling devices and comprises a water storage tank, the water storage tank is connected with a water inlet main pipe through a water inlet pipe, and the water inlet main pipe is connected with a first pump set and a second pump set; the first pump set and the second pump set are further connected with a water outlet main pipe. The water outlet main pipe is connected with a straight pipe through a three-way joint; the top of the straight pipe is connected with a distributive pipe; two ends of the distributive pipe are connected with metal armored hoses through pipe joints; the other end of each metal armored hose is connected with a spray gun in a matched mode, extends into the incinerator and is fixedly connected with the incinerator, during use, water in the water storage tank is pumped into the water outlet main pipe under the action of the first pump set and the second pump set, then the water outlet main pipe conveys the water into the two metal armored hoses, and the two metal armored hoses are connected with the spray gun in a matched mode. Then, a spray gun is used for spraying water into a hearth of the garbage incinerator for cooling; the temperature of the hearth is effectively reduced, the combustion environment of the hearth is improved, and emission control of NOX is facilitated.

Description

Technical Field

[0001] This utility model specifically relates to the field of cooling device technology, and more specifically to a waste incinerator with a water spray cooling function. Background Technology

[0002] A waste incinerator is a device used to process municipal solid waste, achieving waste reduction, harmlessness, and resource recovery through combustion. It consists of a feeding system, a grate system, a combustion system, and a ventilation system. After entering through the feed inlet, the waste moves gradually on the grate, undergoing stages such as drying, combustion, and burnout.

[0003] During the dry season, the moisture content of waste decreases, and after waste sorting is implemented, the calorific value of waste is high, making it easy for the furnace temperature to exceed the upper limit. This is not conducive to boiler combustion adjustment, and the high furnace temperature leads to a shortened equipment lifespan. Under the current nationwide waste sorting policy, the calorific value of waste is on a year-on-year upward trend. During combustion adjustment, the furnace temperature is too high, making it difficult for the boiler to operate at full load, and it is also detrimental to NOx emission control. Utility Model Content

[0004] The purpose of this invention is to provide a waste incinerator with a water spray cooling function. By spraying water into the waste incinerator, the furnace temperature is effectively reduced, the combustion environment in the furnace is improved, and NOx emission control is facilitated. This solves the technical problems mentioned in the background section.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A waste incinerator with a water spray cooling function includes a water storage tank, which is connected to a main water inlet pipe via an inlet pipe. The main water inlet pipe is connected to a first pump group and a second pump group. The first and second pump groups are also connected to an outlet main water inlet pipe. The outlet main water inlet pipe is connected to a straight pipe via a tee connector. A branch pipe is connected to the top of the straight pipe, and a return pipe is connected to the middle of the straight pipe via a tee connector. The other end of the return pipe is connected to the water storage tank.

[0007] Both ends of the water distribution pipe are connected to metal armored hoses via pipe fittings; the other end of the metal armored hose is connected to the spray gun and extends into the furnace chamber of the incinerator, and is fixedly connected.

[0008] As a further technical solution of this utility model, a water outlet butterfly valve is also connected in series on the straight pipe, and the water outlet butterfly valve is located above the connection between the return pipe and the straight pipe; a return butterfly valve is also connected in series on the return pipe.

[0009] As a further technical solution of this utility model, the first pump group and the second pump group are fixed to the bottom frame, and a bracket is fixed above one end of the bottom frame; a controller for controlling the first pump group and the second pump group is installed on the bracket.

[0010] As a further technical solution of this utility model, the end of the water inlet pipe away from the water inlet header is connected to the manifold pipe through a tee connector; then the manifold pipe is connected to multiple water storage tanks.

[0011] The end of the return pipe furthest from the straight pipe is connected to a branch pipe; the branch pipe is connected in conjunction with multiple water storage tanks.

[0012] As a further technical solution of this utility model, multiple water storage tanks are arranged in a straight line, and a mounting bracket is fixed to the bottom of each water storage tank.

[0013] As a further technical solution of this utility model, the first pump group and the second pump group adopt the same structure, both including an inlet butterfly valve connected to the inlet header; the inlet butterfly valve is also connected to the Y-type filter through a flange; the Y-type filter is connected to the inlet of the centrifugal pump through a butt joint, and an inlet pressure gauge is also installed on the butt joint; a maintenance butterfly valve is connected to the outlet of the centrifugal pump; the maintenance butterfly valve is connected to the outlet header through a flange.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. In use, the water in the storage tank is pumped into the outlet header by the first and / or second pump sets. The outlet header then transmits the water to two metal-clad hoses, which are then sprayed onto the waste incinerator using spray guns for cooling. This effectively reduces the furnace temperature, improves the combustion environment, and facilitates NOx emission control. After the technical modification, the boiler operating temperature can be reduced by 30-50℃, and the NOx content in the flue gas remains stable with minimal fluctuations. Simultaneously, approximately 50m³ of water can be consumed daily. 3 Boiler wastewater;

[0016] 2. In this utility model, when a pump is damaged or stopped, the corresponding inlet butterfly valve and maintenance butterfly valve are closed. Closing the maintenance butterfly valve prevents water from flowing in the opposite direction to the pump when another pump is supplying water; it also facilitates the disassembly and maintenance of the pump. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model.

[0018] Figure 2 This is a partial structural schematic diagram of the present invention.

[0019] Figure 3 This utility model Figure 2 Another perspective illustration.

[0020] Figure 4 This utility model Figure 2 The right view.

[0021] Figure 5 This utility model Figure 2 A magnified view of a portion of the image.

[0022] In the diagram: 1-Water storage tank, 2-Inlet pipe, 3-Inlet main pipe, 4-First pump group, 5-Second pump group, 6-Outlet main pipe, 7-Straight pipe, 8-Outlet butterfly valve, 9-Diverter pipe, 10-Return pipe, 11-Return butterfly valve, 12-Metal armored hose, 13-Spray gun, 14-Controller, 15-Bracket, 16-Base frame, 17-Collection pipe, 18-Diverter pipe, 19-Mounting bracket, 20-Incinerator;

[0023] 41-Inlet butterfly valve, 42-Y-type filter, 43-Centrifugal pump, 44-Inlet pressure gauge, 45-Maintenance butterfly valve. Detailed Implementation

[0024] 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.

[0025] Please see Figure 1-5 In this embodiment of the present invention, a waste incinerator with a water spray cooling function includes a water storage tank 1. The water storage tank 1 is connected to a main water inlet pipe 3 via a water inlet pipe 2. The main water inlet pipe 3 is connected to a first pump group 4 and a second pump group 5. The first pump group 4 and the second pump group 5 are also connected to a main water outlet pipe 6. A straight pipe 7 is connected to the main water outlet pipe 6 via a T-joint. A water distribution pipe 9 is connected to the top of the straight pipe 7. A return pipe 10 is connected to the middle of the straight pipe 7 via a T-joint. The other end of the return pipe 10 is connected to the water storage tank 1.

[0026] The two ends of the water distribution pipe 9 are connected to metal armored hoses 12 through pipe joints; the other end of the metal armored hose 12 is connected to the spray gun 13 and extends into the furnace of the incinerator 20 and is fixedly connected.

[0027] By adopting the above technical solution, during use, the water in the water storage tank 1 is pumped into the water outlet header 6 by the first pump group 4 and / or the second pump group 5. Then, the water outlet header 6 transmits the water to two metal armored hoses 12, and then the waste incinerator is sprayed with water by the spray gun 13 to cool it down. This effectively reduces the furnace temperature, improves the furnace combustion environment, and is conducive to NOx emission control.

[0028] The first pump group 4 and the second pump group 5 can operate simultaneously or independently. This ensures that the equipment can stably spray water into the waste incinerator for cooling.

[0029] In this embodiment, a water outlet butterfly valve 8 is also connected in series on the straight pipe 7, and the water outlet butterfly valve 8 is located above the connection between the return pipe 10 and the straight pipe 7; a return butterfly valve 11 is also connected in series on the return pipe 10.

[0030] By adopting the above technical solution, when it is not necessary to spray water into the waste incinerator temporarily, the outlet butterfly valve 8 is closed and the return butterfly valve 11 is opened. At this time, the pumped water flows back to the water storage tank 1 through the return pipe 10. This can avoid the damage caused by frequent start-stop of the first pump group 4 and the second pump group 5.

[0031] In this embodiment, the first pump group 4 and the second pump group 5 are fixed to the bottom frame 16, and a bracket 15 is fixed above one end of the bottom frame 16; a controller 14 for controlling the first pump group 4 and the second pump group 5 is installed on the bracket 15.

[0032] The controller 14 can operate according to the set program, thereby realizing the start and stop control of the first pump group 4 and the second pump group 5.

[0033] In addition, a temperature sensor can be added according to the actual needs of the equipment, and the start and stop control of the first pump group 4 and the second pump group 5 can be realized through temperature control.

[0034] In this embodiment, the end of the water inlet pipe 2 away from the water inlet header 3 is connected to the manifold 17 via a T-joint; then the manifold 17 is connected to multiple water storage tanks 1.

[0035] The end of the return pipe 10 away from the straight pipe 7 is connected to a diversion pipe 18; the diversion pipe 18 is connected to multiple water storage tanks 1.

[0036] More specifically, multiple water storage tanks 1 are arranged in a straight line, and each water storage tank 1 has a mounting bracket 19 fixed to its bottom.

[0037] In this embodiment, the first pump group 4 and the second pump group 5 adopt the same structure, both including an inlet butterfly valve 41 connected to the inlet header 3; the inlet butterfly valve 41 is also connected to the Y-type filter 42 through a flange; the Y-type filter 42 is connected to the inlet of the centrifugal pump 43 through a butt joint, and an inlet pressure gauge 44 is also installed on the butt joint; a maintenance butterfly valve 45 is connected to the outlet of the centrifugal pump 43; the maintenance butterfly valve 45 is connected to the outlet header 6 through a flange.

[0038] By adopting the above technical solution, after opening the inlet butterfly valve 41, the water enters the centrifugal pump 43 through the Y-type filter 42, and then is discharged into the outlet header 6 through the maintenance butterfly valve 45.

[0039] When a pump is damaged or stopped, close the corresponding inlet butterfly valve 41 and maintenance butterfly valve 45. Closing the maintenance butterfly valve 45 prevents water from flowing in the opposite direction to the pump when another pump is supplying water; it also facilitates the disassembly and maintenance of the pump.

[0040] The working principle of this utility model is as follows: When in use, the water in the water storage tank 1 is pumped into the water outlet header 6 by the first pump group 4 and / or the second pump group 5. Then, the water outlet header 6 transmits the water to two metal armored hoses 12. Then, the spray gun 13 is used to spray water into the waste incinerator to cool it down. This effectively reduces the furnace temperature, improves the furnace combustion environment, and is beneficial to NOx emission control.

[0041] When water is not needed to be sprayed into the waste incinerator temporarily, close the outlet butterfly valve 8 and open the return butterfly valve 11. At this time, the pumped water will flow back to the water storage tank 1 through the return pipe 10. This can prevent the first pump group 4 and the second pump group 5 from being damaged due to frequent start-stop.

[0042] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0043] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style of the specification is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A waste incinerator with a water spray cooling function, characterized in that: The system includes a water storage tank (1), which is connected to a main water inlet pipe (3) via an inlet pipe (2). The main water inlet pipe (3) is connected to a first pump group (4) and a second pump group (5). The first pump group (4) and the second pump group (5) are also connected to an outlet main pipe (6). A straight pipe (7) is connected to the outlet main pipe (6) via a T-joint. A water distribution pipe (9) is connected to the top of the straight pipe (7). A return pipe (10) is connected to the middle of the straight pipe (7) via a T-joint. The other end of the return pipe (10) is connected to the water storage tank (1). The two ends of the water distribution pipe (9) are connected to metal armored hoses (12) through pipe joints; the other end of the metal armored hose (12) is connected to the spray gun (13) and extends into the furnace of the incinerator (20) and is fixedly connected.

2. The waste incinerator with water spray cooling function according to claim 1, characterized in that: A water outlet butterfly valve (8) is also connected in series on the straight pipe (7), and the water outlet butterfly valve (8) is located above the connection between the return pipe (10) and the straight pipe (7); a return butterfly valve (11) is also connected in series on the return pipe (10).

3. The waste incinerator with water spray cooling function according to claim 1, characterized in that: The first pump group (4) and the second pump group (5) are fixed on the bottom frame (16), and a bracket (15) is fixed above one end of the bottom frame (16); a controller (14) for controlling the first pump group (4) and the second pump group (5) is installed on the bracket (15).

4. The waste incinerator with water spray cooling function according to claim 1, characterized in that: The end of the water inlet pipe (2) away from the water inlet header pipe (3) is connected to the manifold pipe (17) through a tee connector; then the manifold pipe (17) is connected to multiple water storage tanks (1); The return pipe (10) is connected to a branch pipe (18) at the end away from the straight pipe (7); the branch pipe (18) is connected to multiple water storage tanks (1).

5. The waste incinerator with water spray cooling function according to claim 1, characterized in that: Multiple water tanks (1) are arranged in a straight line, and each water tank (1) has a mounting bracket (19) fixed at its bottom.

6. The waste incinerator with water spray cooling function according to claim 1, characterized in that: The first pump group (4) and the second pump group (5) are composed of the same structure, both including an inlet butterfly valve (41) connected to the inlet header (3); the inlet butterfly valve (41) is also connected to the Y-type filter (42) through a flange; the Y-type filter (42) is connected to the inlet of the centrifugal pump (43) through a butt joint, and an inlet pressure gauge (44) is also installed on the butt joint; a maintenance butterfly valve (45) is connected to the outlet of the centrifugal pump (43); the maintenance butterfly valve (45) is connected to the outlet header (6) through a flange.

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