Soot blowing device of heat-conducting oil furnace

Abstract

The utility model relates to a heat conduction oil furnace soot blowing device which comprises a machine box, a supporting frame is fixedly connected to the back face of the machine box, a head tank is fixedly connected to the top of the supporting frame, an operation panel is fixedly connected to the front face of the machine box, and a heat conduction oil pipe is fixedly connected to the interior of the machine box. The inner bottom wall of the machine box is fixedly connected with a compressed air buffer tank, and a soot blowing structure is fixedly arranged in the machine box. According to the soot blowing device of the heat-conducting oil furnace, the soot blowing structure is arranged, sound waves have the sound-induced fatigue effect on ash residues, due to the repeated effect of sound wave oscillation, when the load applied to extrusion cyclic change of the ash residues reaches a certain cyclic stress frequency, the structures of the ash residues are damaged due to fatigue, and the ash residues are prevented from being damaged. Ash is removed out of the surface of the attachment body due to gravity or fluid media, the ash removal effect is achieved, the ash remover is welded to the heat conduction oil pipe in a sealed mode, the sound amplifying cylinder of the ash remover faces the interior of the heat conduction oil furnace, and noise pollution is small.

Description

Technical Field

[0001] The utility model relates to the technical field of soot blowing of a heat-conducting oil furnace for fish oil processing, in particular to a soot blowing device for a heat-conducting oil furnace. Background Art

[0002] When fuel is burned in a thermal oil boiler, a lot of dust will be generated, and the dust will move with the flow of flue gas. The heat transfer tube of the thermal oil boiler is divided into a radiation heat transfer tube part and a flue gas convection section. The convection section is divided into a front section and a rear section. The rear section is not easy to accumulate dust because a compressed air soot blowing device is installed. However, the front section cannot use a compressed air soot blowing device due to the high flue gas temperature, so a soot blowing device is not installed. According to operational observations, during the operation of the boiler, the dust accumulation in the convection section of the boiler is mainly concentrated on the convection coil. The serious dust accumulation in this section prevents the flue gas from flowing normally, resulting in low heat transfer efficiency of the boiler, and even makes the boiler unable to operate normally.

[0003] After searching, for example, Chinese patent number CN203771430U discloses a new type of cleaning device for convection coils of thermal oil boilers, including a handle, a slide plate extending perpendicular to the handle at one end of the handle, a plurality of connecting blocks parallel to each other are integrally arranged on the slide plate, a soot blowing channel is arranged in the slide plate, and a plurality of soot blowing nozzles are respectively arranged at the left and right ends of each connecting block. When the long-bristle brush and the short-bristle brush are cleaning, gas is blown out of the soot blowing nozzle to assist soot blowing, which can well remove the accumulated soot in the gap of the convection coils of the thermal oil boiler. The structure is simple and easy to use. However, in the above utility model, in actual use, the nozzle is far away from the thermal oil pipe and cannot be directly blown toward the thermal oil pipe, which easily leads to the thermal oil pipe not being cleaned properly. For this reason, we propose a soot blowing device for a thermal oil furnace. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a sootblowing device for a thermal oil furnace, which has the advantages of thorough cleaning and good sootblowing effect, and solves the problem of incomplete cleaning caused by the distance between the nozzle and the oil pipe.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a soot blowing device for a thermal oil furnace, comprising a chassis, a support frame is fixedly connected to the back of the chassis, a high-level slot is fixedly connected to the top of the support frame, an operation panel is fixedly connected to the front of the chassis, a thermal oil pipe is fixedly connected to the interior of the chassis, a compressed air buffer tank is fixedly connected to the inner bottom wall of the chassis, and a soot blowing structure is fixedly arranged inside the chassis;

[0006] The sootblowing structure includes a connecting seat, the interior of the heat transfer oil pipe is fixedly connected to the connecting seat, the right side of the connecting seat is fixedly connected to a regulating valve, the left side of the connecting seat is fixedly connected to a coupling pipe, the left side of the coupling pipe is fixedly connected to a sonic cleaner, the left side of the connecting seat is fixedly connected to a ventilation block, and a ventilation hole is opened inside the ventilation block.

[0007] Furthermore, an exhaust pipe is fixedly connected to the top of the compressed air buffer tank, and an air vent is fixedly connected to the top of the exhaust pipe.

[0008] Furthermore, a connecting seat is fixedly connected to the left side of the ventilation block, a ventilation cabin is provided inside the ventilation block, and the right side of the ventilation cabin is connected to the ventilation hole, and a regulating valve is movably connected inside the ventilation cabin.

[0009] Furthermore, the bottom of the high-level tank is fixedly connected to a main pipeline, and the bottom of the main pipeline is fixedly connected to a circulating pump, and the output end of the circulating pump is fixedly connected to a heat transfer oil pipe.

[0010] Furthermore, a main circuit board is fixedly connected to the interior of the chassis, and a PLC system is fixedly arranged inside the main circuit board, and the back of the operation panel is electrically connected to the main circuit board.

[0011] Furthermore, the front side of the chassis is provided with heat dissipation openings, and the inside of the heat dissipation openings is fixedly connected with a heat dissipation net, and the inside of the heat transfer oil pipe is fixedly connected with a flange heater.

[0012] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0013] 1. The soot blowing device of the heat transfer oil furnace transmits sound energy to the corresponding ash accumulation point through the air medium by setting the soot blowing structure, so that the sound wave plays the role of "acoustic fatigue" on the ash and slag. Due to the repeated action of the sound wave oscillation, the extrusion cyclic load applied to the ash and slag reaches a certain number of cyclic stresses, and the structure of the ash and slag is destroyed due to fatigue. Then, the ash and slag are removed from the surface of the attachment due to gravity or fluid medium, so as to achieve the effect of cleaning. In addition, the heat transfer oil pipe is sealed and welded to prevent air leakage, and the loudspeaker of the ash remover faces the inside of the heat transfer oil furnace, so the noise pollution is small.

[0014] 2. The soot blowing device of the thermal oil furnace controls the start and stop of the ash cleaner by controlling the opening and closing of the solenoid valve through the setting of the operation panel. It has the characteristics of stable and reliable operation and strong anti-interference ability, and can adapt to various working environments. The touch screen is installed in the central control room, which can realize on-site and central control operation and monitoring at the same time. It is used to control the solenoid valve of the acoustic ash cleaning system, which is convenient for users to temporarily control the start and stop of a certain ash cleaner at any time or all ash cleaners start and stop once in sequence according to needs, and repeat the operation after the cycle interval. The solution is small in size and takes into account the convenience of customer installation and maintenance, which greatly simplifies the debugging, performance detection and diagnosis and maintenance of complex systems. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is the overall three-dimensional diagram of the utility model;

[0016] Figure 2 This is a three-dimensional side view of the utility model;

[0017] Figure 3 It is a three-dimensional exploded diagram of the soot blowing structure of the utility model;

[0018] Figure 4 This is a three-dimensional detail diagram of the ultrasonic cleaner of the utility model.

[0019] In the figure: 1. chassis; 2. support frame; 3. high-level tank; 4. operation panel; 5. thermal oil pipe; 6. compressed air buffer tank; 7. exhaust pipe; 8. soot blowing structure; 801. connecting seat; 802. regulating valve; 803. coupling pipe; 804. sonic cleaner; 805. ventilation block; 806. ventilation hole. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-4 A sootblowing device for a thermal oil furnace in this embodiment includes a chassis 1, a support frame 2 is fixedly connected to the back of the chassis 1, a high-level slot 3 is fixedly connected to the top of the support frame 2, an operation panel 4 is fixedly connected to the front of the chassis 1, a thermal oil pipe 5 is fixedly connected to the inside of the chassis 1, a compressed air buffer tank 6 is fixedly connected to the inner bottom wall of the chassis 1, and a sootblowing structure 8 is fixedly arranged inside the chassis 1;

[0022] The soot blowing structure 8 includes a connection seat 801, the connection seat 801 is fixedly connected inside the heat transfer oil pipe 5, a regulating valve 802 is fixedly connected to the right side of the connection seat 801, a coupling pipe 803 is fixedly connected to the left side of the connection seat 801, a sonic cleaner 804 is fixedly connected to the left side of the coupling pipe 803, a ventilation block 805 is fixedly connected to the left side of the connection seat 801, and a ventilation hole 806 is opened inside the ventilation block 805;

[0023] In specific implementation, the compressed air buffer tank 6 is connected to the ventilation block 805 through the exhaust pipe 7 and the vent hole 806 , and a coupling pipe 803 is fixedly connected to the left side of the regulating valve 802 , and the regulating valve 802 is connected to the sonic cleaner 804 through the coupling pipe 803 .

[0024] The whole of the sonic cleaner 804 is composed of a gathering chamber and a cleaning rod, and a sonic diaphragm is fixedly connected to the interior of the gathering chamber.

[0025] When implementing, follow these steps:

[0026] 1) Clean the high-level tank 3 before draining the oil. Ensure that the filling room is clean and tidy when draining the oil. After the raw material (crude fish oil) is accepted and qualified, it is pumped into the high-level tank 3 by a circulation pump according to the batch number for storage;

[0027] 2) Then the product is pumped from the high-level tank 3 into the esterification reactor according to the batch number for transesterification, and the intermediate product after the transesterification is sent to the molecular distillation workshop for graded purification according to the batch number;

[0028] 3) The diaphragm inside the sonic cleaner 804 is under pressure. At this time, the dust-like scale in the heat transfer oil pipe 5 falls loosely on the inner wall surface of the equipment. The compressed air buffer tank 6 injects compressed air of a certain pressure into the ventilation cabin, causing the diaphragm to bend. The air enters the coupling pipe 803. At this time, the scale layer begins to thicken and the particles begin to combine tightly.

[0029] 4) Finally, the diaphragm inside the sonic cleaner 804 contracts, and the air beam entering the coupling tube 803 quickly leaves the cleaning rod, vibrates repeatedly, and is amplified by the sound amplifier to form low-frequency, high-energy sound waves. The energy of the sound waves disperses the particles and prevents them from combining with each other. Then, the dust or impurities inside are taken away by airflow or gravity.

[0030] In summary, the soot blowing device of the thermal oil furnace, by setting the soot blowing structure 8, transmits the sound energy to the corresponding ash accumulation point through the air medium, so that the sound wave plays the role of "acoustic fatigue" on the ash and slag. Due to the repeated action of the sound wave oscillation, the extrusion cyclic changing load applied to the ash and slag reaches a certain number of cyclic stresses, and the structure of the ash and slag is destroyed due to fatigue. Then, the ash and slag are removed from the surface of the attachment body due to gravity or fluid medium, so as to achieve the effect of cleaning. In addition, it is sealed and welded with the thermal oil pipe 5 without air leakage, and the loudspeaker of the ash remover faces the interior of the thermal oil furnace, so the noise pollution is small.

[0031] Furthermore, by setting up the operation panel 4, the start and stop of the ash cleaner is controlled by controlling the opening and closing of the solenoid valve. It has the characteristics of stable and reliable operation and strong anti-interference ability, and is adaptable to various working environments. The touch screen is installed in the central control room, which can realize on-site and central control operation and monitoring at the same time. It is used for controlling the solenoid valve of the acoustic ash cleaning system, which is convenient for users to temporarily control the start and stop of a certain ash cleaner or all ash cleaners in turn at any time according to needs, and repeat the operation after the cycle interval time. The solution has a small size and takes into account the convenience of customer installation and maintenance, which greatly simplifies the debugging, performance detection and diagnosis and maintenance of complex systems.

[0032] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sootblowing device for a thermal oil furnace, comprising a chassis (1), characterized in that: The back of the chassis (1) is fixedly connected to a support frame (2), the top of the support frame (2) is fixedly connected to a high-level tank (3), the front of the chassis (1) is fixedly connected to an operation panel (4), the interior of the chassis (1) is fixedly connected to a heat transfer oil pipe (5), the inner bottom wall of the chassis (1) is fixedly connected to a compressed air buffer tank (6), and a soot blowing structure (8) is fixedly arranged inside the chassis (1); The sootblowing structure (8) comprises a connecting seat (801), the interior of the heat transfer oil pipe (5) is fixedly connected to the connecting seat (801), the right side of the connecting seat (801) is fixedly connected to a regulating valve (802), the left side of the connecting seat (801) is fixedly connected to a coupling pipe (803), the left side of the coupling pipe (803) is fixedly connected to a sonic cleaner (804), the left side of the connecting seat (801) is fixedly connected to a ventilation block (805), and the ventilation block (805) is provided with a ventilation hole (806) inside.

2. A sootblowing device for a thermal oil furnace according to claim 1, characterized in that: The top of the compressed air buffer tank (6) is fixedly connected to an exhaust pipe (7), and the top of the exhaust pipe (7) is fixedly connected to a vent hole (806).

3. A sootblowing device for a thermal oil furnace according to claim 1, characterized in that: The left side of the ventilation block (805) is fixedly connected to a connection seat (801), a ventilation cabin is provided inside the ventilation block (805), and the right side of the ventilation cabin is connected to the ventilation hole (806), and a regulating valve (802) is movably connected inside the ventilation cabin.

4. A sootblowing device for a thermal oil furnace according to claim 1, characterized in that: The bottom of the high-level tank (3) is fixedly connected to a main pipeline, and the bottom of the main pipeline is fixedly connected to a circulation pump, and the output end of the circulation pump is fixedly connected to a heat transfer oil pipe (5).

5. A sootblowing device for a thermal oil furnace according to claim 1, characterized in that: The chassis (1) is fixedly connected to the inside of a main circuit board, and a PLC system is fixedly arranged inside the main circuit board; the back of the operation panel (4) is electrically connected to the main circuit board.

6. A sootblowing device for a thermal oil furnace according to claim 1, characterized in that: The front side of the chassis (1) is provided with heat dissipation openings, and the inside of the heat dissipation openings is fixedly connected to a heat dissipation net, and the inside of the heat-conducting oil pipe (5) is fixedly connected to a flange heater.

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