Waste gas collecting device

Abstract

The utility model discloses a waste gas collecting device which comprises a furnace body, and one side face of the furnace body is fixedly connected with a control panel. The furnace body is connected with a support through a positioning groove formed in the top face of the furnace body, the top face of the support and the top face of the furnace body are each provided with two or more insertion holes, and the same digestion pipe is inserted into the inner walls of the two insertion holes corresponding in the vertical position. An anti-falling structure is arranged on the bottom surface of the bracket; the top surface of the bracket is connected with a sealed gas collection component through a connecting structure; the anti-falling structure comprises a conical cover fixedly connected to the bottom face of the support and a rubber ring fixedly connected to the bottom face of the conical cover. The number of the conical covers is the same as that of the insertion holes in the support. And the sealed gas collection component comprises a shell. The collecting ports in contact with waste gas are sequentially taken out for cleaning through the quick-release assembly or directly pulled out, the interior of the shell can be cleaned, disassembly and assembly are convenient, practicability is good, and the service life of equipment can be effectively prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of waste gas collection, in particular to a waste gas collection device. Background Art

[0002] The digestion furnace is an instrument used in digestion analysis, rock and mineral, soil, plant, chemistry and other fields. It plays an important role in quality inspection of soil, fertilizer and food, etc. It is mainly used for high-temperature heating and digestion of samples for subsequent chemical analysis. The digestion process of the digestion furnace is to add concentrated sulfuric acid and catalyst into the digestion tube, and boil at high temperature. Concentrated sulfuric acid will volatilize acidic gas at high temperature. The waste gas collection device is a device to collect and treat the acidic gas generated during the digestion process, and then treat it through a neutralization device. The treated waste gas can be discharged after it meets the standards.

[0003] After searching, the Chinese patent application number CN201920088314.X discloses a safe digestion furnace, including a heating seat, a heating hole is provided on the heating seat, a support is arranged above the heating seat, a test tube is arranged on the support, a clamp is arranged on the circumference of the test tube and the test tube, and the clamp is arranged near the test tube port. The support includes a horizontal plate, a placement hole with the same structure as the heating hole is provided on the horizontal plate, a vertical plate is arranged at both ends of the horizontal plate, and an auxiliary component is arranged below the horizontal plate. The auxiliary component includes a horizontally arranged auxiliary plate, the two end surfaces of the auxiliary plate are abutted against the vertical plate, an auxiliary hole with the same structure as the heating hole is provided on the auxiliary plate, and a sliding component for driving the auxiliary plate to move up and down is arranged on the support. The safe digestion furnace in the above patent has the following shortcomings: the waste gas enters the shell of the waste gas collection device for collection, although it can prevent harmful gases from polluting the environment, but the inside of the shell cannot be cleaned. In the long run, the harmful substances in the waste gas will cause corrosion damage to the shell, thereby affecting the service life of the shell. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes an exhaust gas collection device.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] An exhaust gas collection device comprises a furnace body, a side surface of which is fixedly connected to a control panel; the furnace body is connected to a bracket through a positioning groove arranged on the top surface thereof, the top surface of the bracket and the top surface of the furnace body are both provided with more than two plug holes, and the inner walls of the two plug holes corresponding to the upper and lower positions are provided with the same digestive tube; the bottom surface of the bracket is provided with an anti-falling structure;

[0007] The top surface of the bracket is connected with a sealing gas collecting component through a connecting structure.

[0008] As a further solution of the utility model: the anti-fall structure includes a conical cover fixedly connected to the bottom surface of the bracket, and a rubber ring fixedly connected to the bottom surface of the conical cover;

[0009] The number of the conical covers is the same as the number of the insertion holes on the bracket.

[0010] As a further solution of the utility model: the sealed gas collecting component includes a shell, a sealing plate arranged on the top edge of the shell, two or more retaining rings fixedly connected to the inner wall of the bottom of the shell, a collecting pipe arranged on the inner wall of the retaining ring, and a collecting port connected to the inner wall of the collecting pipe through a quick-release assembly.

[0011] As a further solution of the utility model: the quick-release assembly includes an external thread arranged on the outer circumferential wall of the collecting port, and an internal thread arranged on the inner circumferential wall of the collecting pipe and adapted to the external thread;

[0012] A sealing ring A is fixedly connected to the circumferential outer wall of the collecting port located above the external thread.

[0013] As a further solution of the utility model: the sealed gas collecting component includes a shell, a sealing plate arranged on the top edge of the shell, two or more retaining rings fixedly connected to the inner wall of the bottom of the shell, a collecting pipe arranged on the inner wall of the retaining ring, and a collecting port inserted into the inner wall of the collecting pipe.

[0014] As a further solution of the utility model: a sealing ring B is fixedly connected to the circumferential outer wall of the collecting port.

[0015] As a further solution of the utility model: the top end of the collecting pipe is fixedly connected with a metal ring;

[0016] The circumferential outer wall of the collecting port is fixedly connected with a magnet ring having the same size as the metal ring, and the outer surfaces of the metal ring and the magnet ring are both coated with an anti-corrosion layer.

[0017] As a further solution of the utility model: a discharge port is fixedly connected to an outer wall of one side of the shell, and a valve is provided on the circumferential outer wall of the discharge port;

[0018] The outer walls of the sealing plate are all fixedly connected with sealing strips;

[0019] The number of the collecting pipes and the insertion holes on the bracket are the same and the upper and lower positions correspond.

[0020] As a further solution of the utility model: the connection structure includes clamping columns fixedly connected to the four corners of the bottom end of the shell, and clamping grooves arranged at the four corners of the top end of the bracket, and the clamping grooves are adapted to the clamping columns.

[0021] As a further solution of the utility model: a handle 1 is fixedly connected to the bottom end of the bracket;

[0022] The two side surfaces of the shell are fixedly connected with handles 2.

[0023] Compared with the prior art, the utility model provides an exhaust gas collection device, which has the following beneficial effects:

[0024] 1. The exhaust gas collection device is provided with a sealed gas collecting component. When the equipment is not in use, the sealing plate is opened, and the collection ports in contact with the exhaust gas are taken out one by one through the quick-release assembly or direct pull-out for cleaning, as well as the inside of the shell. It is convenient to disassemble and assemble, has good practicality, and can effectively increase the service life of the equipment.

[0025] 2. The exhaust gas collection device inserts the collection port into the collecting pipe below and presses it downward, so that the sealing ring B fills the gap between the collection port and the collecting pipe, which is convenient for disassembly and assembly of the collecting pipe and the collection port, and can also ensure the sealing between the collecting pipe and the collection port. This structure is convenient for disassembly and cleaning of the collection port that is in direct contact with the exhaust gas, and has good practicality.

[0026] 3. The waste gas collection device inserts multiple digestion tubes with digestion samples from top to bottom into the sockets on the bracket in sequence, and pushes downward so that the digestion tubes pass through the conical cover. The rubber ring fits tightly against the outer wall of the digestion tube, so that the digestion tubes can be self-locked and positioned to prevent the digestion tubes from falling off the bracket and crashing during the separation of the bracket from the furnace body. The structure is firm and easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a side structural schematic diagram of an exhaust gas collection device proposed by the utility model;

[0028] Figure 2 This is another side view of the exploded structure of an exhaust gas collection device proposed by the utility model;

[0029] Figure 3 This is a schematic structural diagram of the connection state of the conical cover and the digestive tube of a waste gas collection device proposed by the utility model;

[0030] Figure 4 A schematic diagram of the internal structure of a shell of an exhaust gas collection device proposed by the utility model;

[0031] Figure 5 This is a schematic diagram of the explosion structure of the collecting pipe and the collecting port of Example 1 of an exhaust gas collection device proposed by the utility model;

[0032] Figure 6 This is a schematic diagram of the explosion structure of the collecting pipe and the collecting port of Example 2 of an exhaust gas collection device proposed by the utility model;

[0033] Figure 7 This is a schematic diagram of the explosion structure of the collecting pipe and the collecting port of Example 3 of an exhaust gas collection device proposed by the utility model.

[0034] In the figure: 1 furnace body, 101 socket, 2 bracket, 201 handle 1, 3 shell, 301 handle 2, 302 sealing plate, 3021 sealing strip, 4 digestive tube, 401 cone cover, 402 rubber ring, 5 control panel, 6 positioning groove, 7 card slot, 701 card column, 8 collecting pipe, 8001 internal thread, 8002 metal ring, 801 collecting port, 8011 sealing ring A, 8012 external thread, 8013 magnet ring, 802 sealing ring B, 9 discharge port, 10 retaining ring. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0036] Example 1

[0037] An exhaust gas collection device, such as Figure 1-5 As shown, it includes a furnace body 1, and a control panel 5 for controlling the start and stop of the furnace body 1 is fixedly connected to one side of the furnace body 1; the furnace body 1 is connected to a bracket 2 through a group of positioning grooves 6 opened on the top surface thereof, and a handle 201 is fixed to the bottom end of the bracket 2 facing upward through bolts; the handle 201 is held and pressed downward so that the bottom end of the bracket 2 is inserted into the positioning groove 6 and connected and fixed, which makes it convenient to disassemble and position the bracket 2.

[0038] Preferably, the furnace body 1 is a digestion furnace body, and the prior art is cited here, and its structure and functional principle are not described in detail;

[0039] Furthermore, the top surface of the support 2 and the top surface of the furnace body 1 are both provided with a plurality of insertion holes 101, and the inner walls of two corresponding insertion holes 101 at upper and lower positions are provided with the same digestive tube 4;

[0040] Preferably, Figure 3The bottom surface of the bracket 2 is provided with an anti-falling structure for guiding and clamping the digestive tube 4, and the anti-falling structure includes a conical cover 401 fixedly connected to the bottom surface of the bracket 2 and wrapping the insertion hole 101, and a rubber ring 402 welded to the bottom surface of the conical cover 401; a plurality of digestive tubes 4 with digestion samples are inserted into the insertion hole 101 on the bracket 2 from top to bottom in sequence, and pushed downward so that the digestive tube 4 passes through the conical cover 401, and the rubber ring 402 fits firmly with the outer wall of the digestive tube 4, so that the digestive tube 4 can be self-locked and positioned to prevent the digestive tube 4 from falling off the bracket 2 and crashing during the separation of the bracket 2 from the furnace body 1. The structure is firm and easy to use.

[0041] Further preferably, the number of the conical covers 401 is the same as the number of the insertion holes 101 on the bracket 2 .

[0042] Furthermore, the top surface of the bracket 2 is connected to a sealed gas collecting component through a connecting structure, and the sealed gas collecting component includes a shell 3, a sealing plate 302 hinged to the top edge of the shell 3, a plurality of sealing retaining rings 10 fixedly connected to the bottom inner wall of the shell 3, a collecting pipe 8 arranged on the inner wall of the retaining ring 10, and a collecting port 801 connected to the inner wall of the collecting pipe 8 through a quick-release assembly; after the shell 3 is installed on the bracket 2, each digestive tube 4 will correspond to the bottom end of each collecting pipe 8 one by one, so that the waste gas generated during the digestion process can enter the collecting port 801 and the sealed shell 3. When not in use, the sealing plate 302 is lifted, and the collecting ports 801 in contact with the waste gas are taken out in turn for cleaning.

[0043] Preferably, the collecting tube 8 can be made of glass or the like, which is the same as the prior art and is not limited here; the collecting port 801 is made of polytetrafluoroethylene (PTFE), which has better resistance to high temperature, acid and alkali, etc., and can increase its service life. Moreover, compared with glass material, even if the PTFE collecting port 801 slides from a high place, it will not be damaged.

[0044] Preferably, the number of the collecting pipe 8 and the number of the plug holes 101 on the bracket 2 are the same and the upper and lower positions correspond.

[0045] Preferably, sealing strips 3021 are welded to the outer walls of the sealing plate 302 , so as to improve the sealing performance when the sealing plate 302 is covered with the housing 3 .

[0046] Among them, the quick-release assembly includes an external thread 8012 opened on the outer wall of the circumference of the collecting port 801, and an internal thread 8001 opened on the inner wall of the circumference of the collecting pipe 8 and compatible with the external thread 8012; the collecting port 801 is screwed into the collecting pipe 8 through the external thread 8012 thereon and the internal thread 8001 on the corresponding collecting pipe 8, thereby completing the quick disassembly and assembly of the collecting pipe 8 and the collecting port 801, which is convenient for disassembly and cleaning of the collecting port 801 that is in direct contact with the exhaust gas, and has good practicality.

[0047] Preferably, a sealing ring A8011 is welded to the circumferential outer wall of the collecting port 801 located above the external thread 8012; when the collecting port 801 is screwed into the corresponding collecting port 801 for connection, the sealing ring A8011 thereon can also seal the port of the collecting port 801, thereby further improving the sealing performance of the connection between the two.

[0048] In addition, an exhaust port 9 connected to the interior of the shell 3 is fixed on one side outer wall of the shell 3 by bolts, and a valve is provided on the circumferential outer wall of the exhaust port 9; the setting of the exhaust port 9 can facilitate the connection between the sealed gas collecting component and the external structure so that the exhaust gas can be discharged from the underground passage, etc.

[0049] Further preferably, handles 301 are fixed to both sides of the housing 3 by bolts;

[0050] Preferably, the connection structure includes a clamping column 701 fixedly connected to the four corners of the bottom end of the shell 3, and a clamping slot 7 opened at the four corners of the top end of the bracket 2, and the clamping slot 7 is adapted to the clamping column 701; the shell 3 is pressed into the clamping slot 7 on the bracket 2 through the clamping column 701, so that the bracket 2 and the shell 3 form a stable connection relationship, which is convenient for disassembly and assembly.

[0051] Working principle: insert multiple digestive tubes 4 with digestion samples from top to bottom into the socket 101 on the bracket 2 in sequence, and push downward so that the digestive tube 4 passes through the conical cover 401, and the rubber ring 402 fits tightly with the outer wall of the digestive tube 4, so that the digestive tube 4 can be self-locked and positioned. Then hold the handle 201 and press it downward so that the bottom end of the bracket 2 is inserted into the positioning groove 6 for connection and fixation; press the shell 3 into the slot 7 on the bracket 2 through the clamping column 701, so that the bracket 2 and the shell 3 form a stable connection relationship. At this time, each digestive tube 4 will correspond to the bottom end of each collection pipe 8 one by one, so that the waste gas generated during the digestion process enters the collection port 801 and the sealed shell 3. When not in use, open the sealing plate 302, and take out the collection port 801 in contact with the waste gas in sequence for cleaning.

[0052] Example 2

[0053] An exhaust gas collection device, such as Figure 6As shown, in order to provide another structure of the collecting pipe 8 and the collecting port 801; this embodiment makes the following improvements on the basis of embodiment 1: the sealed gas collecting component includes a shell 3, a sealing plate 302 hinged to the top edge of the shell 3, a plurality of sealing retaining rings 10 fixedly connected to the inner wall of the bottom of the shell 3, a collecting pipe 8 arranged on the inner wall of the retaining ring 10, and a collecting port 801 inserted into the inner wall of the collecting pipe 8; after the shell 3 is installed on the bracket 2, each digestive tube 4 will correspond to the bottom end of each collecting pipe 8 one by one, so that the waste gas generated during the digestion process can enter the collecting port 801 and the sealed shell 3. When not in use, the sealing plate 302 is lifted, and the collecting ports 801 in contact with the waste gas are taken out in turn for cleaning.

[0054] Preferably, a sealing ring B802 with an arc-shaped surface is welded to the circumferential outer wall of the collecting port 801; the collecting port 801 is inserted into the collecting pipe 8 below and pressed downward, so that the sealing ring B802 fills the gap between the collecting port 801 and the collecting pipe 8, which facilitates the disassembly and assembly of the collecting pipe 8 and the collecting port 801, and can also ensure the sealing between the collecting pipe 8 and the collecting port 801. This structure is convenient for disassembly and cleaning of the collecting port 801 that is in direct contact with the exhaust gas, and has good practicality.

[0055] Working principle: Insert the collecting port 801 into the collecting pipe 8 below and press downward so that the sealing ring B802 fills the gap between the collecting port 801 and the collecting pipe 8, which facilitates the disassembly and assembly of the collecting pipe 8 and the collecting port 801 while ensuring the sealing between the collecting pipe 8 and the collecting port 801.

[0056] Example 3

[0057] An exhaust gas collection device, such as Figure 7 As shown, in order to provide another structure of the collecting pipe 8 and the collecting port 801; this embodiment makes the following improvements on the basis of embodiment 1: the sealed gas collecting component includes a shell 3, a sealing plate 302 hinged to the top edge of the shell 3, a plurality of sealing retaining rings 10 fixedly connected to the inner wall of the bottom of the shell 3, a collecting pipe 8 arranged on the inner wall of the retaining ring 10, and a collecting port 801 inserted into the inner wall of the collecting pipe 8; after the shell 3 is installed on the bracket 2, each digestive tube 4 will correspond to the bottom end of each collecting pipe 8 one by one, so that the waste gas generated during the digestion process can enter the collecting port 801 and the sealed shell 3. When not in use, the sealing plate 302 is lifted, and the collecting ports 801 in contact with the waste gas are taken out in turn for cleaning.

[0058] Furthermore, a metal ring 8002, such as iron, is fixedly connected to the top of the collecting pipe 8; a magnet ring 8013 of the same size as the metal ring 8002 is fixedly connected to the circumferential outer wall of the collecting port 801, and the outer surfaces of the metal ring 8002 and the magnet ring 8013 are coated with an anti-corrosion layer; the collecting port 801 is inserted into the collecting pipe 8 below, and the metal ring 8002 and the magnet ring 8013 are adsorbed on each other, thereby strengthening the connection stability between the collecting pipe 8 and the collecting port 801, facilitating assembly, and the structure is convenient for disassembly and cleaning of the collecting port 801 that is in direct contact with the exhaust gas, and has good practicality.

[0059] Preferably, the anti-corrosion layer is one of organic coating, epoxy resin, polyurethane coating and the like.

[0060] As a supplement, the connection method between the collecting pipe 8 and the collecting port 801 is not limited to the method disclosed in this embodiment.

[0061] Working principle: insert the collection port 801 into the collecting tube 8 below, at which time the metal ring 8002 and the magnet ring 8013 are adsorbed, thereby strengthening the connection stability between the collecting tube 8 and the collection port 801 and facilitating assembly.

[0062] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A waste gas collection device, comprising a furnace body (1), characterized in that: A control panel (5) is fixedly connected to one side of the furnace body (1); the furnace body (1) is connected to the bracket (2) via a positioning groove (6) arranged on the top surface thereof; the top surface of the bracket (2) and the top surface of the furnace body (1) are both provided with more than two insertion holes (101); the same digestive tube (4) is inserted into the inner walls of the two corresponding insertion holes (101) at upper and lower positions; and the bottom surface of the bracket (2) is provided with an anti-falling structure; The top surface of the bracket (2) is connected to a sealed gas collecting component via a connecting structure.

2. The exhaust gas collection device according to claim 1, characterized in that: The anti-fall structure comprises a conical cover (401) fixedly connected to the bottom surface of the support (2) and a rubber ring (402) fixedly connected to the bottom surface of the conical cover (401); The number of the conical covers (401) is the same as the number of the insertion holes (101) on the bracket (2).

3. An exhaust gas collection device according to claim 2, characterized in that: The sealed gas collecting component comprises a shell (3), a sealing plate (302) arranged at the top edge of the shell (3), two or more retaining rings (10) fixedly connected to the inner wall of the bottom of the shell (3), a collecting pipe (8) arranged on the inner wall of the retaining ring (10), and a collecting port (801) connected to the inner wall of the collecting pipe (8) via a quick-release assembly.

4. The exhaust gas collection device according to claim 3, characterized in that: The quick-release assembly comprises an external thread (8012) arranged on the circumferential outer wall of the collecting port (801), and an internal thread (8001) arranged on the circumferential inner wall of the collecting pipe (8) and adapted to the external thread (8012); A sealing ring A (8011) is fixedly connected to the circumferential outer wall of the collecting port (801) located above the external thread (8012).

5. The exhaust gas collection device according to claim 2, characterized in that: The sealed gas collecting component comprises a shell (3), a sealing plate (302) arranged on the top edge of the shell (3), two or more retaining rings (10) fixedly connected to the inner wall of the bottom of the shell (3), a collecting pipe (8) arranged on the inner wall of the retaining ring (10), and a collecting port (801) inserted into the inner wall of the collecting pipe (8).

6. An exhaust gas collection device according to claim 5, characterized in that: A sealing ring B (802) is fixedly connected to the circumferential outer wall of the collecting port (801).

7. The exhaust gas collection device according to claim 5, characterized in that: A metal ring (8002) is fixedly connected to the top end of the collecting pipe (8); A magnet ring (8013) having the same size as the metal ring (8002) is fixedly connected to the circumferential outer wall of the collecting port (801), and the outer surfaces of the metal ring (8002) and the magnet ring (8013) are both coated with an anti-corrosion layer.

8. An exhaust gas collection device according to any one of claims 4, 6 and 7, characterized in that: A discharge port (9) is fixedly connected to an outer wall of one side of the housing (3), and a valve is provided on the circumferential outer wall of the discharge port (9); The outer walls of the sealing plate (302) are all fixedly connected with sealing strips (3021); The number of the collecting pipe (8) and the number of the plug holes (101) on the bracket (2) are the same and the upper and lower positions correspond.

9. An exhaust gas collection device according to claim 8, characterized in that: The connection structure comprises a clamping column (701) fixedly connected to the four corners of the bottom end of the housing (3), and a clamping slot (7) arranged at the four corners of the top end of the bracket (2), and the clamping slot (7) is adapted to the clamping column (701).

10. An exhaust gas collection device according to claim 9, characterized in that: The bottom end of the bracket (2) is fixedly connected with a handle 1 (201); Handle 2 (301) is fixedly connected to both side surfaces of the shell (3).

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