Water leakage detection device for reduction furnace

Abstract

The utility model provides a water leakage detection device for a reduction furnace, and aims to solve the technical problems of tedious water leakage judgment steps, complicated operation, long detection time and incapability of positioning a water leakage point in real time in the operation period of the existing single reduction furnace. The device comprises a connecting table; a first sight glass and a second sight glass are arranged above the channel of the connecting table at an interval through a gland assembly; a cavity is formed between the first sight glass and the second sight glass; and an annular cavity is formed below the first sight glass, an air spraying opening is formed in one side of the annular cavity and communicates with the channel, and the air spraying direction of the air spraying opening faces the first sight glass. When the device is used, an operator can judge whether water leaks or not only by observing whether flocculent silicon dioxide is attached to the quartz sight glass or not, the water leakage point position can be timely and accurately judged and quickly handled, the operation is simple and quick, and the precision is high.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of reduction furnace especially is concerned with a reduction furnace water leakage detection device. BACKGROUND

[0002] In chemical production, the reduction furnace is one of the important production equipment. The reduction furnace may occur water leakage phenomenon in the running process, and the water leakage will cause the generated silicon dioxide to enter the tail gas system, cause the recovery system to be blocked, and affect the production efficiency and equipment life. The existing water leakage detection method mainly judges whether water leakage occurs by monitoring the differential pressure value change of the silicon powder filter before the recovery system tail gas compressor (after the differential pressure value of the silicon powder filter before the recovery system tail gas compressor abnormally rises within 1 hour, the pre-warning is fed back to the reduction system to carry out the step-by-step inspection of the running reduction furnace). The above method has the following disadvantages: 1. The operation steps to determine the accurate water leakage point are many, the operation time is long, and the judgment time is long, which is not conducive to determining the water leakage point for disposal in time, and the water leakage problem cannot be disposed in real time; 2. The operation difficulty is great, and long-term professional training is needed for the operator; 3. The generated silicon dioxide by water leakage can easily cause the recovery system to be blocked, affecting the continuous operation of the large system. Therefore, an accurate water leakage detection device for a single reduction furnace during operation is needed. SUMMARY

[0003] In view of the above problems, the utility model aims at providing a reduction furnace water leakage detection device to solve the technical problems of complicated water leakage judgment steps, complex operation, long detection time and inability to locate the water leakage point in real time.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0005] A reduction furnace water leakage detection device, comprising: a connecting table; a first sight glass and a second sight glass are arranged on the upper side of the channel of the connecting table through a gland assembly; a cavity is formed between the first sight glass and the second sight glass; an annular cavity is arranged below the first sight glass, one side of the annular cavity is provided with a gas injection port, the gas injection port is communicated with the channel, and the gas injection direction of the gas injection port is towards the first sight glass.

[0006] The utility model discloses a quartz view mirror is arranged on the first gland, and the second view mirror is arranged on the second gland, and the third view mirror is arranged on the third gland, and the first view mirror, the second view mirror and the third view mirror are arranged in the ring cavity, and the first view mirror is used for observing whether the quartz view mirror is attached flocculent silicon dioxide, and the second view mirror is used for observing whether the second view mirror is attached flocculent silicon dioxide, and the third view mirror is used for observing whether the third view mirror is attached flocculent silicon dioxide, and the operator only needs to observe whether the quartz view mirror is attached flocculent silicon dioxide, can judge whether the water is leaked, can judge the water leakage point position in time and accurately and deal with rapidly, and the device does not need complicated operation, reduces the operation difficulty, does not need to train personnel for a long time, and through the rapid cutting of the leakage source, can avoid the influence big system operation.

[0007] Optionally, the gland assembly comprises, from bottom to top, a first gland, a second gland and a third gland in sequence, the gland has a through hole matched with the channel, the first view mirror is located between the first gland and the second gland, the second view mirror is located between the second gland and the third gland, and the ring cavity is formed on the first gland.

[0008] Optionally, the first gland, the second gland, the third gland and the connecting table are connected through a plurality of fasteners.

[0009] Optionally, a first sealing gasket is arranged between the first gland and the connecting table, and a second sealing gasket is arranged between the upper and lower surfaces of the view mirror and the gland respectively.

[0010] Optionally, the upper surface of the first gland, the upper and lower surfaces of the second gland and the lower surface of the third gland are all provided with mounting grooves, the second sealing gasket is arranged in the mounting grooves, and the view mirror is partially arranged in the mounting grooves.

[0011] Optionally, the first sealing gasket is a metal winding gasket.

[0012] Optionally, the second sealing gasket is a fluorine rubber gasket.

[0013] Optionally, the first view mirror is a quartz view mirror.

[0014] Optionally, the second view mirror is a quartz view mirror.

[0015] Optionally, the connecting table comprises a first connecting part, a tapered part and a second connecting part in an integrated structure, the first connecting part is connected with the first gland, and the second connecting part is connected with a reserved port of the reduction furnace.

[0016] Optionally, the connecting table further comprises a protruding part located at the top of the first connecting part, and the first sealing gasket is arranged on the protruding part.

[0017] Optionally, a blowing channel is arranged on the first gland, the blowing channel is connected with the ring cavity, and a blowing joint is connected with one end of the blowing channel away from the ring cavity.

[0018] Optionally, two cooling water channels are arranged on the second gland, the cooling water channels are communicated with the cavity, and cooling water joints are connected to the ends of the cooling water channels away from the cavity.

[0019] Optionally, the water leakage detection device of the reduction furnace further comprises a nitrogen blowing system, which is communicated with the annular cavity through a blowing joint.

[0020] Optionally, the water leakage detection device of the reduction furnace further comprises a cooling system, which is communicated with the cavity through a cooling water joint.

[0021] Compared with the prior art, the water leakage detection device of the reduction furnace has the following beneficial effects:

[0022] In use, the operator only needs to observe whether the quartz sight glass is attached with flocculent silicon dioxide, so as to determine whether there is water leakage, and the water leakage point can be determined in time and accurately and disposed rapidly. The device does not need complex operation, reduces the operation difficulty, and personnel do not need to be trained for a long time. By rapidly cutting off the leakage source, the device can avoid affecting the operation of the large system. By installing the device at the tail gas end of a single reduction furnace, the water leakage point can be determined in real time and accurately, and a large-scale investigation can be avoided. The device can be independently installed, debugged and maintained, and the large system does not need to be stopped for maintenance and replacement of consumables, and the production efficiency is improved. At the same time, by monitoring the water leakage problem in real time and disposing it rapidly, the device can avoid that the silicon dioxide enters the recovery system to cause blockage. By the annular cavity and the upward jetting port, the effect of hydrogen blowing the sight glass can be improved, and the silicon powder in the tail gas can be prevented from shielding the sight glass. The device is not only simple and fast in operation, but also high in precision. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiment description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0024] Figure 1 It is a structural schematic view of the utility model.

[0025] Figure 2 It is Figure 1 It is an enlarged view of structure A in the middle.

[0026] Figure 3 It is a top view of the utility model.

[0027] REFERENCE SIGNS:

[0028] 1, connecting table; 10, channel; 11, first connecting part; 12, conical part; 13, second connecting part; 14, protruding part;

[0029] 2, first sight glass; 3, second sight glass;

[0030] 4, gland assembly; 41, first gland; 411, annular cavity; 412, jet port; 413, mounting groove; 414, purge channel; 42, second gland; 421, cavity; 422, cooling water channel; 43, third gland;

[0031] 5, fastener; 51, bolt; 52, nut;

[0032] 6, first gasket; 7, second gasket; 8, purge joint; 9, cooling water joint. DETAILED DESCRIPTION

[0033] Hereinafter, only certain exemplary embodiments are simply described. As can be appreciated by those skilled in the art, the described embodiments can be modified in various different manners without departing from the spirit or scope of the embodiments of the present application. Therefore, the drawings and the description are considered to be exemplary in nature rather than limiting.

[0034] In the description of the embodiments of the present application, it is to be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", "end", "side", etc. are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the embodiments of the present application.

[0035] In addition, the terms "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second", etc. can explicitly or implicitly include one or more of the features. In the description of the embodiments of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0036] In the embodiments of this utility model application, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this utility model application according to the specific circumstances.

[0037] In the embodiments of this utility model application, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0038] The following disclosure provides many different implementations or examples for carrying out different structures of the embodiments of this utility model application. To simplify the disclosure of the embodiments of this utility model application, specific examples of components and arrangements are described below. Of course, these are merely examples and are not intended to limit the embodiments of this utility model application. Furthermore, reference numerals and / or reference letters may be repeated in different examples of the embodiments of this utility model application; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various implementations and / or arrangements discussed.

[0039] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0040] like Figures 1-3 As shown in the figure, this utility model application provides a water leakage detection device for a reduction furnace, including: a connecting platform 1, a first sight glass 2, a second sight glass 3, and a pressure cap assembly 4.

[0041] A channel 10 is formed in the middle of the connecting platform 1. The first viewing mirror 2 and the second viewing mirror 3 are disposed above the channel 10 of the connecting platform 1 at intervals via the pressure cap assembly 4. A cavity 421 is formed between the first viewing mirror 2 and the second viewing mirror 3. An annular cavity 411 is provided below the first viewing mirror 2, and an air jet 412 is provided on one side of the annular cavity 411. The air jet 412 is connected to the channel 10, and the air jet direction is towards the first viewing mirror 2.

[0042] In use, the device is installed at the end of the tail gas pipe of a single reduction furnace (by connecting one end of the connecting table 1 to the existing single reduction furnace tail gas reserved port), when water leakage occurs in the reduction furnace, the leakage point can be accurately and timely judged by the flocculent silicon attached to the sight glass, and can be quickly disposed according to the situation (such as cutting off the leakage source), without affecting the continuous operation of the large system, and the installation, adjustment and use of the device are all realized independently by the single reduction furnace, and the large system does not need to be stopped for maintenance and replacement of consumables in the later period, and the device is convenient to use. At the same time, through the setting of the annular cavity 411 and the upwardly directed gas injection port 412, the effect of hydrogen blowing the sight glass can be improved, the silicon powder in the tail gas can be prevented from shielding the sight glass, and the detection accuracy can be improved.

[0043] In actual use, the cavity 421 can be connected to the cooling water system, and the annular cavity 411 can be connected to the hydrogen blowing system, and desalted water is delivered into the cavity 421 by the cooling water system for cooling, and at the same time, the recovered hydrogen is introduced into the annular cavity 411 by the hydrogen blowing system to blow the sight glass, so as to prevent the silicon powder in the tail gas from shielding the sight glass.

[0044] Specifically,

[0045] The gland assembly 4 comprises, from bottom to top, a first gland 41, a second gland 42 and a third gland 43, and the glands are all provided with through holes matched with the channel 10, that is, the central part of the gland has a through hole coaxial with the channel 10. The through holes of the first gland 41, the second gland 42 and the third gland 43 are connected to the connecting table 1 by a plurality of fasteners 5, the first sight glass 2 is located between the first gland 41 and the second gland 42, the second sight glass 3 is located between the second gland 42 and the third gland 43, the through hole of the first gland 41 is connected to the channel 10, and the through hole of the second gland 42 is located between the first sight glass 2 and the second sight glass 3 to form a cavity 421.

[0046] Optionally, the annular cavity 411 is formed on the first gland 41. That is, the first gland 41 is provided with an annular cavity 411 near the position of the through hole, a plurality of gas injection ports 412 are formed on the inner wall of one side of the annular cavity 411, and the gas injection ports 412 are inclined upward from one end of the annular cavity 411, that is, the inclined upper end of the gas injection port 412 is located near the first sight glass 2.

[0047] Further, a first sealing gasket 6 is arranged between the first gland 41 and the connecting table 1, and a second sealing gasket 7 is arranged between the upper and lower surfaces of the first sight glass 2 and the second sight glass 3 and the corresponding glands.

[0048] Optionally, the grommet surface is provided with a mounting groove 413, the second sealing gasket 7 is mounted in the corresponding mounting groove 413, and the sight glass part is arranged in the mounting groove 413. Specifically, the upper surface of the first grommet 41, the upper and lower surfaces of the second grommet 42, and the lower surface of the third grommet 43 are all provided with the mounting groove 413, and the plurality of second sealing gaskets 7 are arranged in the corresponding mounting groove 413, and a part of the first sight glass 2 and the second sight glass 3 are arranged in the mounting groove 413.

[0049] Optionally, the connecting table 1 comprises a first connecting part 11, a tapered part 12 and a second connecting part 13 in an integrated structure, the first connecting part 11 is connected with the first grommet 41, the second connecting part 13 has a smaller diameter than the first connecting part 11, and the outer wall of the tapered part 12 is arranged in an inclined manner from one end of the first connecting part 11 to the second connecting part 13. In use, the second connecting part 13 is connected with the reserved port of the reduction furnace.

[0050] Optionally, the connecting table 1 further comprises a protruding part 14 located at the top of the first connecting part 11, and the first sealing gasket 6 is arranged on the protruding part 14.

[0051] Optionally, the top of the through hole of the third grommet 43 is provided with a rounded corner.

[0052] Optionally, the first sealing gasket 6 is a metal winding gasket.

[0053] Optionally, the second sealing gasket 7 is a fluorine rubber gasket.

[0054] Optionally, the first sight glass 2 and the second sight glass 3 are quartz sight glasses.

[0055] Optionally, the grommet is made of stainless steel material.

[0056] Optionally, the fastener 5 comprises a bolt 51 and a nut 52, the bolt 51 passes through the fixing holes of the third grommet 43, the second grommet 42, the first grommet 41 and the first connecting part 11 from top to bottom in sequence, and the two ends of the bolt 51 are locked and fixed by the nut 52. The fastener 5 is a plurality of fasteners, which are distributed in a ring shape at equal intervals along the grommet.

[0057] Further, the first grommet 41 is provided with a blowing channel 414, the blowing channel 414 is connected with the annular cavity 411, and the end of the blowing channel 414 away from the annular cavity 411 is connected with a blowing joint 8. In use, the nitrogen blowing system is connected with the blowing joint 8, and the recovered hydrogen gas is introduced into the annular cavity 411 through the hydrogen blowing system to blow the sight glass, so as to avoid that the silicon powder in the tail gas shields the sight glass.

[0058] Two cooling water channels 422 are formed on the second gland 42, and the two cooling water channels 422 are communicated with the cavity 421, and the ends of the two cooling water channels 422 away from the cavity 421 are respectively connected with cooling water joints 9. In use, the cooling system is connected with the cooling water joints 9, and the circulating cooling water from outside enters the cavity 421 through one side cooling water joint 9, and then flows out of the cavity 421 through the other side cooling water joint 9, so as to cool and protect the first sight glass 2 and the second sight glass 3.

[0059] In use, one end of the connecting table is connected with the existing single reduction furnace tail gas reserved port by welding, when the reduction furnace leaks, the water vapor in the tail gas reacts with the silicon powder to generate flocculent silicon dioxide, which is attached to the surface of the sight glass, the operator regularly observes whether the quartz sight glass is attached with flocculent silicon dioxide, if the attachment is found, it is judged that the reduction furnace leaks, and the leakage source is quickly cut off.

[0060] The unexplained part in the embodiment is the known technology in the art.

[0061] The above is only the specific implementation manner of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can easily think of various changes or replacements within the technical range disclosed by the present application, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A device for detecting water leakage in a reduction furnace, characterized in that, include: Connector (1); A first viewing mirror (2) and a second viewing mirror (3) are provided at intervals above the channel (10) of the connecting platform (1) via a pressure cover assembly (4); A cavity (421) is formed between the first viewing mirror (2) and the second viewing mirror (3); An annular cavity (411) is provided below the first viewing mirror (2), and a jet nozzle (412) is provided on one side of the annular cavity (411). The jet nozzle (412) is connected to the channel (10), and the jet direction of the jet nozzle (412) is towards the first viewing mirror (2).

2. The reduction furnace leakage detection device according to claim 1, characterized in that, The cap assembly (4) includes a first cap (41), a second cap (42) and a third cap (43) from bottom to top. The cap has a through hole adapted to the channel (10). The first sight glass (2) is located between the first cap (41) and the second cap (42). The second sight glass (3) is located between the second cap (42) and the third cap (43). The annular cavity (411) is formed on the first cap (41).

3. The reduction furnace leakage detection device according to claim 2, characterized in that, The first pressure cover (41), the second pressure cover (42), the third pressure cover (43) and the connecting platform (1) are connected by a plurality of fasteners (5).

4. The reduction furnace leakage detection device according to claim 2, characterized in that, A first sealing gasket (6) is provided between the first pressure cap (41) and the connecting platform (1), and a second sealing gasket (7) is provided between the upper and lower surfaces of the sight glass and the pressure cap respectively.

5. The reduction furnace leakage detection device according to claim 4, characterized in that, The upper surface of the first cover (41), the upper and lower surfaces of the second cover (42) and the lower surface of the third cover (43) are all provided with mounting grooves (413), the second sealing gasket (7) is disposed in the mounting groove (413), and the sight glass part is placed in the mounting groove (413).

6. The reduction furnace leakage detection device according to claim 4, characterized in that: The first sealing gasket (6) is a metal spiral wound gasket; And / or, the second sealing gasket (7) is a fluororubber gasket; And / or, the first sight glass (2) is a quartz sight glass; And / or, the second sight glass (3) is a quartz sight glass.

7. The reduction furnace leakage detection device according to claim 4, characterized in that, The connecting platform (1) includes a first connecting part (11), a conical part (12), and a second connecting part (13) that are integrally formed. The first connecting part (11) is connected to the first pressure cover (41), and the second connecting part (13) is connected to the reserved port of the reduction furnace.

8. The reduction furnace leakage detection device according to claim 7, characterized in that, The connecting platform (1) also includes a protrusion (14) located on the top of the first connecting part (11), and the first sealing gasket (6) is disposed on the protrusion (14).

9. The reduction furnace leakage detection device according to claim 2, characterized in that: The first pressure cap (41) is provided with a purge channel (414), which is connected to the annular cavity (411). The end of the purge channel (414) away from the annular cavity (411) is connected to a purge connector (8). And / or, two cooling water channels (422) are provided on the second cover (42), the cooling water channels (422) are connected to the cavity (421), and a cooling water connector (9) is connected to one end of the cooling water channel (422) away from the cavity (421).

10. The reduction furnace leakage detection device according to claim 9, characterized in that: The reduction furnace leakage detection device also includes a nitrogen purging system, which is connected to the annular cavity (411) through a purging connector (8); And / or, the reduction furnace leakage detection device also includes a cooling system, which is connected to the cavity (421) via a cooling water connector (9).

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