A waste gas collecting device for waste gas treatment of a heat supply boiler

Abstract

The utility model discloses a kind of waste gas collecting devices for waste gas treatment of heating boiler, it is related to waste gas collection technical field.The utility model includes smoke hood, pump air subassembly and shunt component, smoke hood is the horn shape structure of downward opening, the upper end of smoke hood extends and is fixedly provided with top sealing sleeve, the lower end surface outside of smoke hood extends and is fixedly provided with annular eaves, the board surface of annular eaves is through and is provided with a group of smoke holes in circumferential array, the side wall of top sealing sleeve is communicated with the air inlet end of pump air subassembly by pipeline, the air outlet end of pump air subassembly is communicated with the air inlet end of shunt component by pipeline.The utility model is arranged at the outlet of smoke chimney by smoke hood, the exhaust gas discharged is collected in smoke hood, smoke chimney outlet is sealed to prevent flue gas direct emission, cause pollution to air;The exhaust gas collected in smoke hood is pumped into shunt component by pump air subassembly, and exhaust gas is shunted by shunt component, so as to facilitate the detection of different projects to exhaust gas.

Description

Technical Field

[0001] This utility model belongs to the field of waste gas collection technology, and in particular relates to a waste gas collection device for treating waste gas from heating boilers. Background Technology

[0002] During heating operations, heating boilers emit carbon monoxide, carbon dioxide, nitrogen, sulfur dioxide, nitrogen dioxide, and particulate matter under conditions of sufficient oxygen, good mixing, high temperature, and sufficient residence time. Before releasing or treating these exhaust gases, they need to be collected to test the boiler's combustion efficiency or to diagnose the boiler equipment. Collecting exhaust gases before treatment can easily lead to leaks and emissions, causing air pollution. In addition, when testing the collected exhaust gases, different tests need to be performed depending on the purpose of the test.

[0003] To address these issues, we provide a waste gas collection device for treating exhaust gas from heating boilers. Utility Model Content

[0004] The purpose of this utility model is to provide a waste gas collection device for treating exhaust gas from heating boilers. The device connects a pumping assembly to the top of the smoke hood via a pipe, and then connects the pumping assembly to a diversion assembly via another pipe. The smoke hood is positioned at the outlet of the exhaust chimney, collecting the exhaust gas within it. The chimney outlet is sealed to prevent direct emission of exhaust gas and thus air pollution. The pumping assembly pumps the collected exhaust gas from the smoke hood into the diversion assembly, which then diverts the exhaust gas, facilitating the testing of different parameters of the exhaust gas.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: This utility model is a waste gas collection device for treating waste gas from a heating boiler, including a fume hood, a pump assembly, and a diversion assembly. The fume hood is a downward-opening trumpet-shaped structure. A top cover is fixedly installed on the upper end of the fume hood, and an annular hood is fixedly installed on the outer side of the lower end face of the fume hood. A set of smoke-permeable holes are circumferentially arrayed on the surface of the annular hood. The side wall of the top cover is connected to the air inlet end of the pump assembly through a pipe, and the air outlet end of the pump assembly is connected to the air inlet end of the diversion assembly through a pipe.

[0006] A further feature of this invention is that a side hoop is fixedly provided on the lower end edge of the annular canopy, and a set of top threaded sleeves are fixedly arranged in a circumferential array on the outer side wall of the side hoop, with a top threaded screw screw screwed into the inner thread of the top threaded sleeve.

[0007] A further feature of this invention is that a fan cover is fixedly installed on the upper end of the smoke hood, the fan cover is equipped with a diversion fan, a diversion ring tube is fixedly sleeved on the inner wall of the side hoop, the inner wall of the diversion ring tube is open, and a set of air guide pipes are circumferentially connected to the lower side wall of the fan cover, and each air guide pipe passes through the annular hood eaves and is connected to the upper end face of the diversion ring tube.

[0008] A further feature of this invention is that an annular air outlet clamp is fixedly fitted at the opening of the inner wall of the drainage ring pipe, and the outlet direction of the annular air outlet clamp is inclined upward.

[0009] A further feature of this invention is that the air pump assembly includes a cylinder, an air injection cylinder, and a base cylinder. A connecting pipe is connected to each of the two side walls of the base cylinder. One connecting pipe is connected to the top sleeve through a pipe, and the other connecting pipe is connected to the air inlet of the diversion assembly through a pipe. The air injection cylinder is located at the upper end of the base cylinder and is connected to the base cylinder. A pull-out piston is fixedly installed at the telescopic end of the cylinder, and the pull-out piston is vertically slidably sleeved in the air injection cylinder.

[0010] A further feature of this invention is that each of the two connecting pipes is provided with a one-way valve. The one-way valve in the connecting pipe connected to the top sleeve has its one-way outlet facing into the base cylinder, and the one-way valve in the connecting pipe connected to the diversion assembly has its one-way outlet facing into the diversion assembly.

[0011] A further feature of this invention is that the diversion assembly includes a diversion cone, a cone shroud, and a connecting ring. The upper end of the cone shroud is connected to a connecting pipe on the side wall of the base cylinder through a pipe. The connecting ring is fixedly installed at the lower opening of the cone shroud. The diversion cone is fixedly installed at the upper end of the connecting ring, with the pointed end of the diversion cone facing upward. A set of air outlet pipes is fixedly connected to the lower end face of the connecting ring in a circumferential array.

[0012] This utility model has the following beneficial effects: 1. This utility model connects the top cover of the fume hood to the air pumping assembly via a pipe, and then connects the air pumping assembly to the diversion assembly via another pipe. The fume hood is then placed at the outlet of the exhaust chimney, and the exhaust gas is collected in the fume hood. The chimney outlet is sealed to prevent the direct emission of flue gas and thus prevent air pollution.

[0013] 2. This utility model uses a pumping assembly to pump the waste gas collected in the fume hood into a diversion assembly, which then diverts the waste gas, making it easier to perform different tests on the waste gas. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of a waste gas collection device for treating waste gas from a heating boiler.

[0016] Figure 2 This is a schematic diagram of the structure of the top threaded sleeve and the fume hood.

[0017] Figure 3 This is an exploded view of the exhaust fan and fume hood.

[0018] Figure 4 This is a side sectional view of the drainage loop.

[0019] Figure 5 This is an exploded view of the air pump assembly.

[0020] Figure 6 This is a breakdown diagram of the splitter component.

[0021] The attached diagram lists the components represented by each number as follows: 1-Fog hood, 101-Top sleeve, 102-Annular hood rim, 102a-Smoke vent, 102b-Side clamp, 102c-Top threaded sleeve, 102c-1-Top screw, 103-Fan cover, 103a-Drainage fan, 103b-Drainage ring pipe, 103b-1-Annular outlet clamp, 103c-Air guide pipe, 2-Pump assembly, 201-Cylinder, 201a-Pull-out piston, 202-Air injection cylinder, 203-Base cylinder, 203a-Connecting pipe, 203b-One-way valve, 3-Diverter assembly, 301-Diverter cone, 302-Cone cover, 303-Sleeve ring, 303a-Outlet pipe. Detailed Implementation

[0022] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0023] Example 1 Please see Figures 1 to 4This utility model is a waste gas collection device for treating exhaust gas from a heating boiler, including a fume hood 1, a pumping assembly 2, and a diversion assembly 3. The fume hood 1 is connected to the pumping assembly 2 via a pipe on one side of the capping sleeve 101 at the upper end, and the pumping assembly 2 is connected to the diversion assembly 3 via another pipe. The fume hood 1 is set at the outlet of the exhaust chimney to collect the exhaust gas in the fume hood 1 and seal the chimney outlet to prevent the exhaust gas from being directly emitted and causing air pollution. The pumping assembly 2 pumps the exhaust gas collected in the fume hood 1 into the diversion assembly 3, which then diverts the exhaust gas, thereby facilitating the detection of different items in the exhaust gas.

[0024] Specifically, the smoke hood 1 is a downward-opening trumpet-shaped structure. The upper end of the smoke hood 1 is fixedly provided with a top cover 101 extending upward, and the outer side of the lower end face of the smoke hood 1 is fixedly provided with an annular hood 102. A set of smoke-permeable holes 102a are circumferentially arrayed through the surface of the annular hood 102. The side wall of the top cover 101 is connected to the air inlet end of the air pumping assembly 2 through a pipe, and the air outlet end of the air pumping assembly 2 is connected to the air inlet end of the diversion assembly 3 through a pipe.

[0025] Furthermore, a side hoop 102b is fixedly provided on the lower end edge of the annular hood 102, and a set of top-connecting threaded sleeves 102c are fixedly arranged in a circumferential array on the outer side wall of the side hoop 102b. A top-connecting screw 102c-1 is screwed into the inner thread of the top-connecting threaded sleeve 102c. By rotating the top-connecting screw 102c-1, the top-connecting screw 102c-1 is pressed against the inner wall of the chimney, and the hood 1 is fixedly installed inside the chimney.

[0026] Furthermore, a fan cover 103 is fixedly installed on the upper end of the capping sleeve 101 of the fume hood 1. The fan cover 103 is equipped with a diversion fan 103a. A diversion ring pipe 103b is fixedly sleeved on the inner wall of the side hoop 102b. The inner wall of the diversion ring pipe 103b is open. A set of air guide pipes 103c are circumferentially connected to the lower side wall of the fan cover 103. Each air guide pipe 103c passes through the annular hood 102 and is connected to the upper end face of the diversion ring pipe 103b. The diversion fan 103a draws external air into the fan cover 103. The air enters the diversion ring pipe 103b from each air guide pipe 103c and is discharged from the inner wall opening end of the diversion ring pipe 103b, diverting the exhaust gas emitted below the chimney into the fume hood 1.

[0027] Furthermore, an annular air outlet hoop 103b-1 is fixedly sleeved at the opening of the inner wall of the diversion ring pipe 103b. The outlet direction of the annular air outlet hoop 103b-1 is inclined upward, so that the air is blown into the upper fume hood 1, forming a Venturi effect to draw in the exhaust gas below.

[0028] The operation process in this embodiment is as follows: When exhaust gas is discharged, the duct fan 103a draws outside air into the fan shroud 103. The air enters the duct ring pipe 103b through each air guide pipe 103c and is discharged from the inner wall opening of the duct ring pipe 103b, guiding the exhaust gas discharged below the chimney to the fume hood 1. The exhaust gas entering the fume hood 1 is collected in the top cover 101 and pumped into the diversion component 3 by the air pumping assembly 2. The diversion component 3 divides the exhaust gas, which facilitates the detection of different items in the exhaust gas. After the exhaust gas collection is completed, the duct fan 103a is turned off, and the flue gas is discharged from the vent 102a.

[0029] Example 2 Please see Figures 1 to 6 Based on Embodiment 1, the air pumping assembly 2 includes a cylinder 201, an air injection cylinder 202, and a base cylinder 203. The diversion assembly 3 includes a diversion cone 301, a cone shroud 302, and a connecting ring 303. By sliding a pull-pull piston 201a inside the air injection cylinder 202, the cylinder 201 pushes the pull-pull piston 201a to slide in the air injection cylinder 202, drawing the waste gas accumulated in the capping sleeve 101 into the air injection cylinder 202, and then pumping the waste gas into the diversion assembly 3. By connecting a set of outlet pipes 303a at the lower end of the connecting ring 303, the waste gas enters the cone shroud 302 and is discharged from each outlet pipe 303a, thereby achieving the technical effect of diversion.

[0030] Specifically, each of the two side walls of the base cylinder 203 is connected to a connecting pipe 203a. One connecting pipe 203a is connected to the top sleeve 101 through a pipe, and the other connecting pipe 203a is connected to the air inlet of the diversion component 3 through a pipe. The air injection cylinder 202 is set at the upper end of the base cylinder 203 and is connected to the base cylinder 203. The telescopic end of the cylinder 201 is fixedly equipped with a pull-out piston 201a, which is vertically slidably sleeved in the air injection cylinder 202.

[0031] Furthermore, each of the two connecting pipes 203a is provided with a one-way valve 203b. The one-way valve 203b in the connecting pipe 203a that is connected to the capping sleeve 101 has its one-way outlet facing into the base cylinder 203, while the one-way valve 203b in the connecting pipe 203a that is connected to the diversion assembly 3 has its one-way outlet facing into the diversion assembly 3.

[0032] Furthermore, the upper end of the cone shroud 302 is connected to a connecting pipe 203a on the side wall of the base cylinder 203 via a pipe. The sleeve ring 303 is fixedly installed at the lower opening of the cone shroud 302. The diverting cone 301 is fixedly installed at the upper end of the sleeve ring 303 with the pointed end of the diverting cone 301 facing upward. A set of air outlet pipes 303a are fixedly connected to the lower end face of the sleeve ring 303 in a circumferential array.

[0033] The operation process in this embodiment is as follows: The cylinder 201 pulls the pull-out piston 201a upward, drawing the waste gas accumulated in the capping sleeve 101 into the air injection cylinder 202 through the one-way valve 203b. The cylinder 201 then pushes the pull-out piston 201a downward, pushing the waste gas in the air injection cylinder 202 out through the one-way valve 203b on the other side and into the diversion assembly 3, where it is diverted to facilitate the detection of different items in the waste gas.

[0034] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

Claims

1. A waste gas collection device for treating waste gas from a heating boiler, comprising a fume hood (1), a pump assembly (2), and a diversion assembly (3), characterized in that: The smoke hood (1) is a downward-opening trumpet-shaped structure. The upper end of the smoke hood (1) is fixedly provided with a top cover (101) extending upward. The outer side of the lower end face of the smoke hood (1) is fixedly provided with an annular hood (102). A set of smoke-permeable holes (102a) are circumferentially arrayed on the surface of the annular hood (102). The side wall of the top cover (101) is connected to the air inlet of the air pump assembly (2) through a pipe. The air outlet of the air pump assembly (2) is connected to the air inlet of the diversion assembly (3) through a pipe.

2. The waste gas collection device for treating waste gas from a heating boiler according to claim 1, characterized in that: The lower end face edge of the annular cover (102) is fixed with a side hoop (102b), and a set of top threaded sleeves (102c) are fixed in a circumferential array on the outer side wall of the side hoop (102b). The top threaded sleeve (102c) is screwed with a top screw (102c-1) by its internal thread.

3. The waste gas collection device for treating waste gas from a heating boiler according to claim 2, characterized in that: The smoke hood (1) has a fan cover (103) fixedly installed at the upper end of the capping sleeve (101). The fan cover (103) is equipped with a diversion fan (103a). The inner wall of the side hoop (102b) is fixedly sleeved with a diversion ring pipe (103b). The inner wall of the diversion ring pipe (103b) is open. A set of air guide pipes (103c) are circumferentially connected to the lower side wall of the fan cover (103). Each air guide pipe (103c) passes through the annular hood eaves (102) and is connected to the upper end face of the diversion ring pipe (103b).

4. The waste gas collection device for treating waste gas from a heating boiler according to claim 3, characterized in that: An annular air outlet clamp (103b-1) is fixedly sleeved at the opening of the inner wall of the drainage ring pipe (103b), and the outlet direction of the annular air outlet clamp (103b-1) is inclined upward.

5. The waste gas collection device for treating waste gas from a heating boiler according to claim 1, characterized in that: The air pump assembly (2) includes a cylinder (201), an air injection cylinder (202), and a base cylinder (203). The two side walls of the base cylinder (203) are respectively connected to a connecting pipe (203a). One of the connecting pipes (203a) is connected to the top sleeve (101) through a pipe, and the other connecting pipe (203a) is connected to the air inlet of the diversion assembly (3) through a pipe. The air injection cylinder (202) is set at the upper end of the base cylinder (203) and is connected to the base cylinder (203). The telescopic end of the cylinder (201) is fixedly provided with a pull-out piston (201a). The pull-out piston (201a) is vertically slidably sleeved in the air injection cylinder (202).

6. The waste gas collection device for treating waste gas from a heating boiler according to claim 5, characterized in that: Each of the two connecting pipes (203a) is provided with a one-way valve (203b). The one-way valve (203b) in the connecting pipe (203a) that is connected to the capping sleeve (101) has its one-way outlet facing into the base cylinder (203). The one-way valve (203b) in the connecting pipe (203a) that is connected to the diversion assembly (3) has its one-way outlet facing into the diversion assembly (3).

7. The waste gas collection device for treating waste gas from a heating boiler according to claim 6, characterized in that: The diversion assembly (3) includes a diversion cone (301), a cone cover (302), and a connecting ring (303). The upper end of the cone cover (302) is connected to a connecting pipe (203a) on the side wall of the base cylinder (203) through a pipe. The connecting ring (303) is fixedly installed at the lower end opening of the cone cover (302). The diversion cone (301) is fixedly installed at the upper end of the connecting ring (303). The pointed end of the diversion cone (301) faces upward. A set of air outlet pipes (303a) is fixedly connected to the lower end face of the connecting ring (303) in a circumferential array.

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