Insulator chamber heat preservation system suitable for electric dust remover

Abstract

The invention belongs to the field of electric dust removers, and particularly relates to an insulator chamber heat preservation system suitable for an electric dust remover. Comprising a dedusting cabin; an insulator chamber; one end of the flow guide pipe is communicated with the outlet of the dust removal cabin, and the other end of the flow guide pipe is communicated with the interior of the insulator chamber; the flow guide pipe penetrates through the interior of the heating bin, the heating bin is provided with a flow guide pipe, the two ends of the flow guide pipe are communicated with the middle of the dust removal cabin and the interior of the heating bin respectively, and the flow guide pipe is used for guiding flue gas in the middle of the dust removal cabin into the heating bin to achieve heating of the flue gas in the flow guide pipe. The invention provides an insulator chamber heat preservation system suitable for an electric dust remover. The insulator chamber heat preservation system aims at solving the problem that a large temperature difference exists in an insulator chamber and a dust removal cabin.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of electric dust precipitators, and particularly relates to an insulation sub-chamber heat preservation system suitable for electric dust precipitators. BACKGROUND

[0002] In the field of industrial waste gas treatment, electric dust precipitators have become indispensable environmental protection equipment for many industries due to their high dust removal capacity. The working principle of electric dust precipitators is based on the strong electric field generated by high-voltage direct current, which causes the ionization of gas molecules in industrial flue gas, generating a large number of electrons and ions. These charged particles move towards the two poles under the action of electric field force, in the process, the dust particles are charged. The charged dust is driven by the electric field force to move towards the opposite polarity plate or wire, and eventually adheres to the plate or wire due to electrostatic force, and falls into the ash hopper through the rapping device, achieving the purpose of flue gas purification.

[0003] The high-voltage introduction device is an important part of the electric dust precipitator, and it is a key component connecting the high-voltage power supply and the internal electric field, which bears the important function of safely and stably delivering kilovolt-level direct current high voltage to the corona pole, directly affecting the dust removal efficiency, equipment life and operation safety. The high-voltage introduction device includes a wall bushing, which is contained in the insulation sub-chamber, and a porcelain sleeve is installed on the inner wall of the insulation sub-chamber. In practice, the interior of the insulation sub-chamber needs to be kept within a small temperature difference range with the interior of the electric dust precipitator to avoid damage to the porcelain sleeve due to temperature difference.

[0004] In order to keep the temperature of the insulation sub-chamber within a small temperature difference range with the interior of the electric dust precipitator, the existing technology usually introduces high-temperature flue gas after purification by the electric dust precipitator into the heat preservation coil of the insulation sub-chamber, thereby increasing the temperature of the insulation sub-chamber. This method can be referred to in the prior art (application number CN202222325426.7, name: high-voltage insulation heating-free heat preservation device for high-temperature electric dust precipitator).

[0005] However, it is found in practice that this method in the prior art has certain defects. The main reason is that the high-temperature flue gas is introduced from the outlet of the dust chamber, and part of the heat of the high-temperature flue gas is lost, so the temperature of the high-temperature flue gas decreases. At the same time, during the process of introducing the high-temperature flue gas through the pipeline, the flue gas in the pipeline is cooled due to the influence of the external environment (such as severe low-temperature weather), so that the temperature of the flue gas entering the heat preservation coil of the insulation sub-chamber cannot reach the predetermined value, which ultimately causes a large temperature difference between the insulation sub-chamber and the dust chamber, and the risk of porcelain sleeve damage is greatly increased. SUMMARY

[0006] The present application provides an insulation sub-chamber heat preservation system suitable for electric dust precipitators, which aims to solve the problem of large temperature difference between the insulation sub-chamber and the interior of the dust chamber.

[0007] In order to achieve the above object, the application provides an insulator chamber heat preservation system suitable for an electric dust collector, which comprises a dust removal cabin, an insulator chamber, a flow guide pipe, a heating bin and a flow guide pipe.

[0008] The high-temperature flue gas in the middle of the dust removal cabin is introduced into the heating bin, and the high-temperature flue gas heats the flue gas in the flow guide pipe, so that the temperature of the flue gas in the flow guide pipe is increased, and then the flow guide pipe introduces the flue gas into the heat preservation coil of the insulator chamber. In this way, the problem of large temperature difference between the insulator chamber and the dust removal cabin caused by the decrease of the temperature of the flue gas in the flow guide pipe is solved.

[0009] Preferably, when the high-temperature flue gas carrying dust passes through the heating bin, the charge carried by the dust is easily lost, and if the high-temperature flue gas is directly reflowed into the middle of the dust removal cabin, the dust removal effect is poor. Therefore, the heating bin is preferably provided with a reflux pipe, one end of the reflux pipe is in communication with the inside of the heating bin, the other end of the reflux pipe is in communication with the inlet of the dust removal cabin, and the reflux pipe is used to reflow the flue gas in the heating bin to the inlet of the dust removal cabin.

[0010] The high-temperature flue gas flowing through the heating bin is reflowed to the inlet of the dust removal cabin through the reflux pipe, and then the high-temperature flue gas carrying dust is recharged and re-filtered, thereby achieving better dust removal effect.

[0011] Preferably, in order to reduce the dust remaining in the heating bin, the connection between the reflux pipe and the heating bin is located at the bottom of the heating bin. When the dust in the heating bin falls due to gravity, part of the dust can directly fall into the reflux pipe and eventually be carried back to the outlet of the dust removal cabin by the flue gas, thereby reducing the total amount of dust remaining in the heating bin.

[0012] Preferably, in order to reduce the total amount of dust entering the heating bin, the flow guide pipe is in vertical state and communicates with the heating bin. By setting the flow guide pipe in vertical state, when the high-temperature flue gas carrying flue gas passes through the flow guide pipe, the dust in the high-temperature flue gas will fall due to gravity, thereby reducing the total amount of dust entering the heating bin.

[0013] Preferably, in order to realize the dust removal of the inside of the heating bin and the outer surface of the heat exchange part, the scheme further comprises an air compressor and a connecting pipe, the air compressor is communicated with the flow guide pipe through the connecting pipe, and the air compressor is used for outputting flue gas into the flow guide pipe, so that the flue gas flows through the flow guide pipe, the heating bin and the return pipe in sequence.

[0014] In the scheme, the flue gas is output by the air compressor, and the flue gas sequentially passes through the flow guide pipe, the heating bin and the return pipe, so that the dust removal of the flow guide pipe, the heating bin and the return pipe is realized in sequence. After the dust on the surface of the heat exchange part is removed, the heat exchange efficiency of the heat exchange part is better.

[0015] Preferably, in order to realize better dust removal effect, the connecting pipe of the scheme is connected with the outlet position of the flow guide pipe. By blowing the flue gas out of the mouth of the flow guide pipe, the flue gas can act on the position where the dust accumulates the most, and the dust removal effect is better.

[0016] Preferably, in order to avoid dust entering the inside of the connecting pipe from the outlet of the connecting pipe, the connecting pipe of the scheme is provided with an elastic sealing piece at the connecting position of the connecting pipe and the flow guide pipe, and the elastic sealing piece is used for shielding the outlet of the connecting pipe.

[0017] In the scheme, the outlet of the connecting pipe is shielded by the elastic sealing piece, so that when the high-temperature flue gas carrying dust flows in the flow guide pipe, most of the dust is blocked by the elastic sealing piece, and the dust is prevented from entering the inside of the connecting pipe.

[0018] Preferably, in order to realize better heat exchange effect, the flow guide pipe of the scheme comprises a heat exchange part, the heat exchange part is in the shape of a spiral pipe, and the heat exchange part is located in the inside of the heating bin.

[0019] In the scheme, the heat exchange is realized by the spiral pipe-shaped heat exchange part, the flue gas in the heat exchange part stays in the heating bin for a longer time, and thus better heat exchange effect can be realized, and the heating effect of the flue gas in the heat exchange part is better.

[0020] Preferably, in order to detect whether the dust adheres to the outer surface of the heat exchange part, the flow guide pipe of the scheme further comprises a connecting part and an insulating joint, the connecting part is connected with the heat exchange part through the insulating joint, and both ends of the heat exchange part are respectively fitted with an electrode ring, and the electrode ring is connected with a resistance detection circuit.

[0021] In the scheme, when the dust adheres to the outer surface of the heat exchange part, the dust will affect the resistance of the heat exchange part, causing the resistance value detected by the resistance detection circuit to change. By judging the change of the resistance value, whether the dust adheres to the outer surface of the heat exchange part is determined. Meanwhile, in order to solve the problem that the connecting part affects the measurement of the resistance value of the heat exchange part, the connecting part is connected with the heat exchange part through the insulating joint, and the current cannot be conducted to the connecting part.

[0022] Preferably, in order to solve the problem that the insulation joint is damaged due to long-time contact with high-temperature air inside the heating chamber, the insulation joint is mounted on the side wall of the heating chamber, the inner side of the insulation joint is connected with the heat exchange part, and the outer side of the joint is connected with the connecting part.

[0023] The insulation joint is mounted on the side wall of the heating chamber, so that the side wall of the heating chamber can protect the insulation joint to a certain extent and prevent the insulation joint from being damaged due to long-time heating.

[0024] The high-temperature flue gas in the middle of the dust removal chamber is introduced into the heating chamber, the high-temperature flue gas heats the flue gas in the flow guide pipe, so that the temperature of the flue gas in the flow guide pipe is increased, and then the flow guide pipe introduces the flue gas into the heat preservation coil of the insulator chamber. In this way, the problem of large temperature difference between the insulator chamber and the dust removal chamber due to the decrease of the temperature of the flue gas in the flow guide pipe is solved, and the probability of damage of the porcelain sleeve due to temperature difference is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 Structure diagram of the insulator chamber heat preservation system suitable for the electric dust remover.

[0026] Figure 2 Sectional view of the heating chamber.

[0027] Figure 3 Schematic diagram of the flow guide pipe in Example 2.

[0028] Figure 4 Schematic diagram of the elastic sealing piece in Example 2 in the state of shielding the connecting pipe.

[0029] Figure 5 Schematic diagram of the elastic sealing piece in Example 2 in the state of opening the connecting pipe.

[0030] Figure 6 Schematic diagram of the insulation joint in Example 3 in the state of being not connected.

[0031] Figure 7 Schematic diagram of the insulation joint in Example 3 in the state of being connected.

[0032] The reference signs include: dust removal chamber 1, high-voltage introduction device 2, through-wall bushing 21, switch 22, power supply 23, insulator chamber 3, heat preservation coil 31, flow guide pipe 4, heat exchange part 41, connecting part 42, insulation joint 43, first matching part 431, second matching part 432, circular groove 433, connecting channel 434, embedded groove 435, heating chamber 5, flow guide pipe 51, backflow pipe 52, electrode ring 6, connecting pipe 7, elastic sealing piece 71. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solutions and advantages of the embodiments clearer, the application will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the application and not to limit the application.

[0034] The embodiments are substantially as shown in the accompanying drawings and Figure 1 to the accompanying drawings and Figure 2 As shown in the accompanying drawings, an insulation chamber heat preservation system suitable for an electric dust collector comprises a dust removal cabin 1, which is provided with an inlet and an outlet. High-temperature flue gas carrying dust enters the inside of the dust removal cabin 1 from the inlet of the dust removal cabin 1, and is subjected to dust removal by a filter dust removal system installed in the inside of the dust removal cabin 1. After the dust removal, the high-temperature flue gas is discharged outward from the outlet of the dust removal cabin 1. The dust removal cabin 1 is cooperatively provided with a high-voltage lead-in device 2, which comprises a wall bushing 21, a switch 22 and a power supply 23. The power supply 23 is in a connected state with the wall bushing 21, and the wall bushing 21 is accommodated in the inside of an insulation chamber 3.

[0035] In order to keep the insulation chamber 3 and the inside of the dust removal cabin 1 in a smaller temperature difference range and avoid damage to the porcelain sleeve, the embodiment is provided with a flow guide pipe 4 between the insulation chamber 3 and the outlet of the dust removal cabin 1. The flow guide pipe 4 is a metal pipe. The flow guide pipe 4 is provided with a suction fan, which provides the power of the flue gas to make the flue gas at the outlet position of the dust removal cabin 1 enter the flow guide pipe 4. The flue gas enters the heat preservation coil pipe 31 of the insulation chamber 3 along the flow guide pipe 4, so as to realize the heat preservation of the insulation chamber 3 and keep the insulation chamber 3 and the dust removal cabin 1 in a smaller temperature difference range. Finally, the flue gas flows back to the inlet of the dust removal cabin 1 through the pipe from the heat preservation coil pipe 31.

[0036] In order to solve the flue gas cooling problem in the flow guide pipe 4, the heating bin 5 is arranged outside the dust removal cabin 1, the heating bin 5 is in an oval shape, the heating bin 5 is in a closed state, and the flow guide pipe 4 passes through the inside of the heating bin 5. The outer surface of the heating bin 5 is provided with a heat preservation layer, so as to further realize the heat preservation effect of the heating bin 5. The heating bin 5 is provided with a drainage pipe 51 and a backflow pipe 52, both of which are metal pipes. The drainage pipe 51 communicates the heating bin 5 with the middle part of the dust removal cabin 1, so that the high-temperature flue gas located in the middle part of the dust removal cabin 1 can enter the inside of the heating bin 5 through the drainage pipe 51. The high-temperature flue gas in the middle part of the dust removal cabin 1 has a high temperature (usually more than 200 degrees). One end of the backflow pipe 52 communicates with the inside of the heating bin 5, and the other end of the backflow pipe 52 communicates with the inlet position of the dust removal cabin 1. The outlet of the drainage pipe 51 is provided with a suction fan, which provides power for the flow of flue gas. The flue gas flows between the dust removal cabin 1 and the heating bin 5, and the flue gas does not leak, which ensures that the internal pressure of the dust removal cabin 1 is less affected. The size of the backflow pipe 52 and the drainage pipe 51 is preferably greater than the size of the flow guide pipe 4, so as to ensure the flow of high-temperature flue gas and avoid the blockage of the drainage pipe 51 and the backflow pipe 52 by the dust carried by the high-temperature flue gas.

[0037] In order to determine whether the flue gas in the flow guide pipe 4 needs to be heated, a temperature detector is installed in the flow guide pipe 4, which detects the temperature value in the flow guide pipe 4, and then determines whether the flow guide pipe 4 needs to be heated. The temperature detector can be a temperature measuring instrument in the prior art.

[0038] The following describes the heating process of the flue gas in the flow guide pipe 4: when the flue gas in the flow guide pipe 4 needs to be heated, the high-temperature flue gas located in the middle part of the dust removal cabin 1 enters the inside of the heating bin 5 through the drainage pipe 51, and the high-temperature flue gas exchanges heat with the flue gas in the flow guide pipe 4 in the inside of the heating bin 5, so that the temperature of the flue gas in the flow guide pipe 4 rises. Then, the high-temperature flue gas that has completed heat exchange returns to the inlet of the dust removal cabin 1 through the backflow pipe 52. The flue gas in the drainage pipe 51 can enter the heat preservation coil 31 in the insulator chamber 3 to heat the insulator chamber 3.

[0039] It can be understood that: in the present embodiment, since the high-temperature flue gas in the middle part of the dust removal cabin 1 is introduced, the high-temperature flue gas contains dust, so the high-temperature flue gas exchanges heat with the flue gas in the flow guide pipe 4 through the flow guide pipe 4 in the inside of the heating bin 5, and the flue gas in the flow guide pipe 4 does not contact the flue gas in the heating bin 5, avoiding the dust entering the flow guide pipe 4. At the same time, by returning the high-temperature flue gas carrying dust to the inlet position of the dust removal cabin 1, the dust contained in the high-temperature flue gas can be recharged, and compared with directly returning the high-temperature flue gas to the middle part of the dust removal cabin 1, the dust removal effect is better.

[0040] In order to achieve a better heat exchange effect of the flow guide pipe 4 in the heating chamber 5, the flow guide pipe 4 of this embodiment includes a heat exchange portion 41 and a connecting portion 42. The heat exchange portion 41 is located inside the heating chamber 5, and both ends of the heat exchange portion 41 are respectively connected to the connecting portion 42. The heat exchange portion 41 can be a copper tube, and preferably in the shape of a spiral tube, so that the heat exchange effect of the heat exchange portion 41 is better. The connecting portion 42 can be an iron tube, and the outer surface of the connecting portion 42 can also be wrapped with an insulation layer, thereby further reducing the problem of flue gas temperature drop caused by the external environment. The insulation layer can be an insulation foam layer or other insulation layer in the prior art.

[0041] In order to avoid dust remaining inside the heating bin 5 as much as possible, the drainage pipe 51 is set to a vertical state in this embodiment. When the drainage pipe 51 in a vertical state introduces high-temperature flue gas into the heating bin 5, part of the dust will fall downward due to gravity, thereby reducing the dust entering the heating bin 5. At the same time, the return pipe 52 is set at the bottom of the heating bin 5. When the dust inside the heating bin 5 falls due to gravity, the dust can fall into the return pipe 52 and flow back to the entrance of the dust removal chamber 1 along the return pipe 52, avoiding dust remaining inside the heating bin 5. In addition, the bottom of the heating bin 5 can be made into a cone, and the entrance of the return pipe 52 is located at the lowest position of the bottom of the heating bin 5, to ensure that the return pipe 52 is better at collecting falling dust.

[0042] Example 2: This example is an improvement on Example 1. Since the interior of the heating chamber 5 is used to circulate high-temperature smoke, which contains a large amount of dust, dust will adhere to the outer surface of the heat exchange portion 41 after a period of use, thereby affecting the heat exchange effect of the heat exchange portion 41.

[0043] like Figures 3 to 5 As shown, in order to detect dust on the outer surface of the heat exchange unit 41, in this embodiment, electrode rings 6 are installed at both ends of the heat exchange unit 41. The electrode rings 6 are metal electrode rings 6 and are annular in shape. The electrode rings 6 can be fixedly connected to the heat exchange unit 41 by welding or bonding. The electrode rings 6 at both ends of the heat exchange unit 41 are respectively connected to the resistance detection circuit, thereby making the heat exchange unit 41 part of the resistance detection circuit. The resistance detection circuit specifically includes a detection power supply, a switch, a meter, and a fixed resistor, which together form a closed loop.

[0044] The process of detecting the dust on the outer surface of the heat exchange part 41 by the resistance detection circuit is introduced as follows: when there is no dust adhered to the outer surface of the heat exchange part 41, the fixed resistance and the total resistance of the heat exchange part 41 at this time (at this time, the resistance can be regarded as R1) can be detected by the measuring table; then, with the use, when a large amount of dust adheres to the outer surface of the heat exchange part 41, the adhered dust will directly cause the resistance change of the heat exchange part 41, and at this time, the fixed resistance and the total resistance of the heat exchange part 41 (at this time, the resistance can be regarded as R2) can be detected by the measuring table; by comparing R1 and R2, whether there is dust adhered to the surface of the heat exchange part 41 can be directly known. In addition, the total resistance value change chart of the heat exchange part 41 and the fixed resistance when adhering different amounts of dust can be measured in advance. Then, when in use, by comparing the measured R2 with the corresponding data in the pre-measured chart, the total amount of dust on the outer surface of the heat exchange part 41 can be judged. When the total amount of dust on the outer surface of the heat exchange part 41 exceeds a certain value, the dust removal operation can be performed.

[0045] In order to solve the problem that the connecting part 42 interferes with the detection result, the heat exchange part 41 and the connecting part 42 are connected by the insulating joint 43 in the embodiment, and the insulating joint 43 can be a plastic joint. The insulating joint 43 is arranged to insulate the heat exchange part 41 and the connecting part 42 from each other, so as to ensure that the detected resistance change is caused by the dust adhered to the heat exchange part 41, and avoid the interference of the connecting part 42. The insulating joint 43 can be installed on the side wall of the heating bin 5, the inner side of the insulating joint 43 faces the inside of the heating bin 5, and the outer side of the insulating joint 43 faces the outside of the heating bin 5. Meanwhile, it is preferred that the inner side of the insulating joint 43 does not protrude from the inner wall of the heating bin 5. The insulating joint 43 is arranged in two, so as to be connected with the heat exchange part 41 at two ends respectively, and be connected with the connecting part 42 respectively. The two ends of the heat exchange part 41 can be embedded into the inner side of the two insulating joints 43 respectively, so as to realize the connection between the heat exchange part 41 and the insulating joint 43; and the two connecting parts 42 can be embedded into the outer side of the insulating joint 43 respectively, so as to realize the connection between the connecting part 42 and the insulating joint 43.

[0046] It should be noted that in the embodiment, the inner side of the insulating joint 43 does not protrude from the inner wall of the heating bin 5, so that the insulating joint 43 is as little as possible to be directly contacted with the high-temperature flue gas, and the deformation of the insulating joint 43 caused by the long-time action of the high-temperature flue gas is avoided. Meanwhile, the outer side of the insulating joint 43 is constrained and protected by the side wall of the heating bin 5, which further limits the deformation of the insulating joint 43.

[0047] In order to realize the dust removal inside the heating bin 5, the connecting pipe 7 is connected at the outlet position of the draught tube 51 in the embodiment, and the outlet of the connecting pipe 7 faces the outlet of the draught tube 51. The connecting pipe 7 is in a connected state with the air compressor.

[0048] The process of dust cleaning by the air compressor is described as follows: when it is necessary to clean the interior of the heating bin 5, the air compressor is operated, and the air compressor releases the airflow to the outlet position of the flow guide pipe 51 through the connecting pipe 7, and the airflow enters the interior of the heating bin 5 through the outlet of the flow guide pipe 51. The airflow flows in the interior of the heating bin 5, and the dust on the inner wall of the heating bin 5 and the outer surface of the heat exchange part 41 is removed. Finally, the airflow carrying the dust flows from the return flow pipe 52 to the inlet of the dust removal chamber 1.

[0049] It should be noted that when the high-temperature flue gas carrying the dust is released from the outlet of the flow guide pipe 51 into the interior of the heating bin 5, the dust is more likely to accumulate at the region corresponding to the outlet of the flow guide pipe 51. When the dust cleaning is performed, the airflow released by the air compressor is also released from the outlet of the flow guide pipe 51 into the interior of the heating bin 5, so the airflow released by the air compressor is more likely to come into contact with the dust, thereby achieving a better dust cleaning effect.

[0050] In order to solve the problem that the airflow released by the air compressor flows towards the inlet of the flow guide pipe 51 during the dust cleaning process, a valve is arranged at the inlet of the flow guide pipe 51 in the embodiment, and the inlet of the flow guide pipe 51 is closed by the valve, thereby avoiding the airflow flowing towards the inlet of the flow guide pipe 51.

[0051] At the same time, in order to solve the problem that the high-temperature flue gas carrying the dust enters the interior of the connecting pipe 7 from the outlet of the connecting pipe 7, an elastic sealing sheet 71 is installed at the outlet position of the connecting pipe 7 in the embodiment, and the elastic sealing sheet 71 is made of plastic. One end of the elastic sealing sheet 71 is connected with the inner wall of the connecting pipe 7, and the connection can be achieved by pasting. The other end of the elastic sealing sheet 71 can be bent and deformed in the process of being blown by the airflow. Therefore, when there is no airflow released from the connecting pipe 7, the elastic sealing sheet 71 is in a natural state, and the elastic sealing sheet 71 shields the outlet of the connecting pipe 7, thereby avoiding the dust entering the interior of the connecting pipe 7 through the outlet of the connecting pipe 7. When the air compressor is operated, the airflow output by the air compressor contacts the elastic sealing sheet 71, the elastic sealing sheet 71 is blown and deformed by the airflow, and the outlet of the connecting pipe 7 is opened. In addition, a valve is arranged on the connecting pipe 7, and the connecting pipe 7 can be closed by the valve, thereby avoiding the airflow flowing into the interior of the connecting pipe 7, and further preventing a large amount of dust from accumulating on the inner wall of the connecting pipe 7.

[0052] It should be noted that when the circuit value of the heat exchange part 41 is measured, and the dust is removed by releasing the airflow by the air compressor, the electrostatic precipitator is in a shutdown state, thereby avoiding interference.

[0053] Embodiment 3: This embodiment is improved on the basis of Embodiment 2. In Embodiment 2, since the electrode ring 6 needs to be connected to the resistance detection circuit, a wire needs to pass through the electrode ring 6, and part of the wire will inevitably be located inside the heating bin 5. The wire located inside the heating bin 5 then needs to extend to the outside through the heating bin 5. This process involves operations such as opening a hole in the heating bin 5 and sealing the hole, which further increases the cost.

[0054] To solve the above problems, as shown in Figure 6 and Figure 7 , in this embodiment, the electrode ring 6 is preferably arranged in the inner wall of the insulating joint 43, and the wire is arranged outside the heating bin 5. Specifically, when implementing, the insulating joint 43 is arranged to include a first fitting part 431 and a second fitting part 432, both of which are circular tubes. One end of the first fitting part 431 is provided with an internal thread, and one end of the second fitting part 432 is provided with an external thread. The first fitting part 431 and the second fitting part 432 are connected by the internal and external threads, and are combined to form the insulating joint 43. A sealing ring is arranged at the connection between the first fitting part 431 and the second fitting part 432, thereby further improving the sealing performance of the insulating joint. At the same time, a circular groove 433 is arranged at the bottom end of the internal thread of the first fitting part 431, and the circular groove 433 is used to accommodate the electrode ring 6. At the same time, a connecting channel 434 is arranged on the first fitting part 431, one end of the connecting channel 434 is in communication with the outside, and the other end of the connecting channel 434 extends to the circular groove 433, and the connecting channel 434 is used to accommodate a bolt.

[0055] When assembling, first, the first fitting part 431 and the second fitting part 432 are threadedly disconnected, then the electrode ring 6 is arranged in the circular groove 433 of the first fitting part 431; then, the first fitting part 431 and the second fitting part 432 are connected by threads, so as to limit the electrode ring 6 in the circular groove 433, and the electrode ring 6 is in a fixed state and cannot move; then, the bolt is screwed into the connecting channel 434, the bolt rotates and moves in the connecting channel 434, and the front end of the bolt finally reaches the circular groove 433, and the front end of the bolt is in abutting contact with the electrode ring 6 located in the circular groove 433; then, the heat exchange part 41 is embedded into the second fitting part 432, and the connecting part 42 is embedded into the first fitting part 431, and when the heat exchange part 41 is embedded into the first fitting part 431, the outer surface of the heat exchange part 41 is in contact with the electrode ring 6 located in the circular groove 433, so as to ensure that the current can be transmitted from the electrode ring 6 to the heat exchange part 41; finally, the wire is connected with the bolt, so that the current can be transmitted to the electrode ring 6 through the bolt.

[0056] In order to make the contact between the bolt and the electrode ring 6 more stable, in some embodiments, threaded holes can be arranged on the top of the electrode ring 6, the threaded holes can be arranged in a ring shape and multiple, and the opening of the threaded hole is in a trumpet shape. Therefore, when the bolt passes through the connecting channel 434, the front end of the bolt can enter the inside of the threaded hole, the bolt is screwed with the threaded hole, and then the contact between the bolt and the electrode ring 6 is more stable. Of course, since the threaded hole and the bolt are difficult to align and connect successfully at one time, the first matching part 431 and the second matching part 432 can be in a non-tightly connected state before the threaded hole and the bolt are successfully connected, at this time the electrode ring 6 can be driven by the bolt to rotate appropriately, the position of the electrode ring 6 changes, so that the bolt and the threaded hole correspond to each other. Alternatively, the bolt can be first installed into the connecting channel 434, and then the bolt and the threaded hole on the electrode ring 6 are aligned and connected, and then the first matching part 431 and the second matching part 432 are connected, so as to fix the electrode ring 6.

[0057] It can be understood that in the embodiment, the electrode ring 6 is integrated in the insulating joint 43, and the electrode ring 6 will not be in contact with the high-temperature flue gas in the heating bin 5 for a long time, avoiding damage to the electrode ring 6 due to long-term heating. In addition, the wire is electrically connected to the electrode ring 6 through the bolt, and the wire is located outside the heating bin 5, avoiding the wire from being in contact with the high-temperature flue gas in the heating bin 5, and not needing to separately provide a hole for the wire to pass out of the heating bin 5. At the same time, the wire is directly connected to the bolt, and the end of the bolt is in an exposed state, which is more convenient for the operator to operate, and even in the case of accidental disconnection, the wire and the bolt can be electrically connected again, which is more convenient to operate.

[0058] Since the circular groove 433 and the connecting channel 434 are in a connected state, in order to further avoid the flue gas from leaking to the outside through the circular groove 433 and the connecting channel 434, the embodiment further has an embedded groove 435 at the bottom of the circular groove 433, the embedded groove 435 is also circular, and the embedded groove 435 and the circular groove 433 are in a concentric state. When the heat exchange part 41 is embedded into the second matching part 432, the front end of the heat exchange part 41 can extend into the inside of the embedded groove 435, and the front end of the heat exchange part 41 is closed, thereby avoiding gas leakage. Of course, a sealing ring can also be arranged at the nut of the bolt, and the outlet of the connecting channel 434 is blocked by the sealing ring, further avoiding gas leakage.

[0059] The above-mentioned are only embodiments of the present application, and the common knowledge of specific structures and characteristics in the scheme is not described too much. It should be pointed out that for those skilled in the art, without departing from the structure of the present application, a number of modifications and improvements can be made, which should also be considered as the protection scope of the present application, which will not affect the effect and practicality of the patent. The protection scope claimed in this application should be subject to the content of its claims, and the specific implementation mode and the like recorded in the specification can be used to explain the content of the claims.

Claims

1. An insulation system for an insulator chamber of an electrostatic precipitator, characterized by: include Dust removal cabin; Insulator chamber; a flow guide pipe, one end of which is connected to the outlet of the dust removal chamber, and the other end of which is connected to the insulation coil of the insulator chamber; as well as The heating chamber, the guide pipe passes through the interior of the heating chamber, the heating chamber is equipped with a drainage pipe, the two ends of the drainage pipe are respectively connected to the middle of the dust removal chamber and the interior of the heating chamber, the drainage pipe is used to introduce the flue gas in the middle of the dust removal chamber into the heating chamber, so as to heat the flue gas inside the guide pipe.

2. The insulation system for an insulator chamber according to claim 1, characterized in that: The heating chamber is also equipped with a return pipe, one end of which is connected to the interior of the heating chamber, and the other end of which is connected to the entrance of the dust removal chamber. The return pipe is used to return the smoke inside the heating chamber to the entrance of the dust removal chamber.

3. The insulation system for an insulator chamber according to claim 2, characterized in that: The connection point between the reflux pipe and the heating chamber is located at the bottom of the heating chamber.

4. The insulation system for an insulator chamber according to claim 2, characterized in that: The drainage tube is in a vertical state and communicates with the heating chamber.

5. The insulation system for an insulator chamber according to claim 2, characterized in that: It also includes an air compressor and a connecting pipe. The air compressor is connected to the drainage pipe through the connecting pipe. The air compressor is used to output smoke into the drainage pipe, so that the smoke flows through the drainage pipe, the heating chamber and the return pipe in sequence.

6. The insulator chamber insulation system according to claim 5, characterized in that: The connection point between the connecting tube and the drainage tube is located at the outlet of the drainage tube.

7. The insulation system for an insulator chamber according to claim 6, characterized in that: An elastic sealing piece is provided at the connection between the connecting tube and the drainage tube, and the elastic sealing piece is used to block the outlet of the connecting tube.

8. The insulator chamber insulation system according to any one of claims 1 to 7, characterized in that: The flow guide pipe includes a heat exchange portion, which is in the shape of a spiral tube and is located inside the heating chamber.

9. The insulation system for an insulator chamber according to claim 8, characterized in that: The flow guide pipe further includes a connecting portion and an insulating joint, wherein the connecting portion is connected to the heat exchange portion via the insulating joint; Electrode rings are respectively installed at both ends of the heat exchange portion, and the electrode rings are connected to the resistance detection circuit.

10. The insulator chamber insulation system according to claim 9, characterized in that: The insulating joint is installed on the side wall of the heating chamber, the inner side of the insulating joint is connected to the heat exchange part, and the outer side of the insulating joint is connected to the connecting part.

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