CN210268346U - Self-cleaning type heat exchanger - Google Patents
Self-cleaning type heat exchanger Download PDFInfo
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- CN210268346U CN210268346U CN201921016334.2U CN201921016334U CN210268346U CN 210268346 U CN210268346 U CN 210268346U CN 201921016334 U CN201921016334 U CN 201921016334U CN 210268346 U CN210268346 U CN 210268346U
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Abstract
The utility model discloses a self-cleaning heat exchanger, which belongs to the technical field of heat exchange equipment and comprises a heat exchange tube, a cleaning system and a shell connected with a flue, wherein a plurality of heat exchange tubes are arranged in the shell in parallel, the cleaning system is arranged outside the shell and the heat exchange tubes, the tops of the heat exchange tubes are all communicated with a medium inlet tube, and the bottoms of the heat exchange tubes are all communicated with a medium outlet tube; the cleaning system comprises a spray pipe, a delivery pump, a cleaning pipeline and a cleaning box, the cleaning box is arranged at the bottom of the shell and is communicated with the shell, and the spray pipe is provided with a plurality of spray ports facing the heat exchange pipes in the shell; the inlet and the outlet of the delivery pump are respectively communicated with the cleaning box and the spray pipe through cleaning pipelines. The conveying pump pressurizes the cleaning liquid in the cleaning tank, the cleaning liquid is sprayed to the outer wall of the heat exchange tube through a spraying port on the spraying tube, and the cleaning liquid flows back to the cleaning tank. Utilize the utility model discloses can realize the online cleaning heat exchange tube to ensure in the flue gas in the casing with the abundant heat exchange of heat exchange tube inner medium, improve the heat exchange effect.
Description
Technical Field
The utility model belongs to the technical field of indirect heating equipment, especially, relate to a self-cleaning type heat exchanger.
Background
The heat exchanger is widely applied to the industries of petroleum, chemical engineering, garbage treatment and the like. In the processes of coal-fired boilers, garbage incinerators and the like, the discharged flue gas contains a large amount of dust and waste heat, and in order to realize energy conservation and emission reduction, a heat exchanger is often arranged on a flue gas pipeline to recover the heat of the flue gas. With the increase of the service time, dust dirt in the flue gas can be adhered to the surface of the heat exchanger in a large amount, and the heat exchange effect is reduced. Frequent cleaning of the heat exchanger is required and long shut-downs of the cleaning of the heat exchanger can result in significant heat loss. Therefore, it is necessary to develop a heat exchanger capable of being cleaned on-line to reduce the downtime, reduce the heat loss and ensure the heat exchange effect.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a self-cleaning type heat exchanger, it is poor to aim at solving the long-time operation dirt adhesion of heat exchanger among the above-mentioned prior art and lead to the heat transfer effect, shuts down the technical problem that the long calorific loss of cleaning time is big.
In order to solve the technical problem, the utility model discloses the technical scheme who takes is:
a self-cleaning heat exchanger comprises a plurality of heat exchange tubes, a cleaning system and a shell connected with a flue, wherein the heat exchange tubes are arranged in the shell in parallel, the cleaning system is arranged on the outer sides of the shell and the heat exchange tubes, the tops of the heat exchange tubes are communicated with medium inlet tubes filled with heat-absorbing media, and the bottoms of the heat exchange tubes are communicated with medium outlet tubes; the cleaning system comprises a spray pipe, a delivery pump, a cleaning pipeline and a cleaning box, wherein the cleaning box filled with cleaning liquid is arranged at the bottom of the shell and is communicated with the shell, and the spray pipe is provided with a plurality of spray ports facing to the heat exchange pipe in the shell; and the inlet and the outlet of the delivery pump are respectively communicated with the cleaning box and the spray pipe through cleaning pipelines.
Preferably, the cleaning system and the outer part of the shell are provided with protective covers, the medium inlet pipe and the medium outlet pipe are both arranged in the protective covers and arranged outside the shell, and the inlet end of the medium inlet pipe and the outlet end of the medium outlet pipe both penetrate through the protective covers; and the flues at the two sides communicated with the shell all penetrate through the protective cover.
Preferably, the spray pipe comprises an upper spray pipe and a lower spray pipe, the upper spray pipe and the lower spray pipe are respectively and horizontally arranged at the upper part and the lower part of the heat exchange pipe, the heat exchange pipes are vertically arranged in the shell, and one sides of the upper spray pipe and the lower spray pipe, which face the heat exchange pipes, are respectively provided with a plurality of spray ports; the two ends of the upper spray pipe and the lower spray pipe are rotatably connected with the shell, and the upper spray pipe and the lower spray pipe are connected with the deflection mechanism and used for driving the upper spray pipe and the lower spray pipe to spray cleaning liquid to the heat exchange pipe up and down in the swinging process.
Preferably, the deflection mechanism comprises a motor, a connecting plate and swing rods, the motor is arranged on the inner wall of the protective cover, the output shaft of the motor is fixedly connected with the middle of the connecting plate, the swing rods are two and are telescopic rods, one end of each swing rod is rotatably connected with the edge of the connecting plate, and the other ends of the two swing rods are rotatably connected with the upper spray pipe and the lower spray pipe respectively.
Preferably, two pendulum rods set up respectively in the middle part of last spray tube, spray tube down, go up the fixed ring of middle part overcoat of spray tube and spray tube down, the pendulum rod end is connected with fixed ring rotation.
Preferably, the connecting plate is a triangular plate or a waist-shaped plate, and the two swing rods are respectively and rotatably connected with the two protruding end parts of the triangular plate or the waist-shaped plate.
Preferably, the tail end of the swing rod is connected with the fixing ring through a high-strength spring.
Preferably, the motor is a stepping motor.
Preferably, the two ends of the upper spray pipe and the lower spray pipe are arranged in bearing seats, the bearing seats are arranged on the outer wall of the shell, and the upper spray pipe and the lower spray pipe are in running fit with the bearing seats through bearings.
Adopt the produced beneficial effect of above-mentioned technical scheme to lie in: compared with the prior art, the utility model discloses a delivery pump will wash the incasement washing liquid pressurization back, carry to the shower through wasing the pipeline, again from spraying the mouth on the shower to the heat exchange tube injection high pressure cleaning liquid, high pressure cleaning liquid backward flow to the washing incasement after the casing to the heat exchange tube washing, the circulation washes the operation, has washed the dirt of heat exchange tube outer wall until having washd. Utilize the utility model discloses can realize the online cleaning heat exchange tube to ensure in the flue gas in the casing with the abundant heat exchange of heat exchange tube inner medium, improve the heat exchange effect.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a schematic structural diagram of a self-cleaning heat exchanger according to an embodiment of the present invention;
FIG. 2 is a left side view of the heat exchange tube of FIG. 1;
FIG. 3 is a schematic diagram of the cleaning system and the yaw mechanism of FIG. 1;
in the figure: 1-heat exchange tube; 2-flue; 3-a shell; 4-medium inlet pipe; 5-medium outlet pipe; 6-spraying pipe, 61-upper spray pipe and 62-lower spray pipe; 7-a delivery pump; 8, cleaning a pipeline; 9-cleaning the tank; 10-a spray opening; 11-a protective cover; 12-a motor; 13-a connecting plate; 14-a swing rod; 15-fixing ring.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The self-cleaning heat exchanger shown in fig. 1-3 comprises a plurality of heat exchange tubes 1, a cleaning system and a shell 3 connected with a flue 2, wherein the heat exchange tubes 1 are arranged in the shell 3 in parallel, the cleaning system is arranged at the outer sides of the shell 3 and the heat exchange tubes 1, the tops of the heat exchange tubes 1 are communicated with a medium inlet tube 4 filled with a medium to be heat-absorbed, and the bottoms of the heat exchange tubes 1 are communicated with a medium outlet tube 5; the cleaning system comprises a spray pipe 6, a delivery pump 7, a cleaning pipeline 8 and a cleaning box 9, wherein the cleaning box 9 filled with cleaning liquid is arranged at the bottom of the shell 3 and is communicated with the shell 3, and a plurality of spray ports 10 facing the heat exchange pipe in the shell 3 are arranged on the spray pipe 6; and the inlet and the outlet of the delivery pump 7 are respectively communicated with the cleaning box 9 and the spray pipe 6 through a cleaning pipeline 8. After the conveying pump pressurizes cleaning fluid in the cleaning box, high-pressure cleaning fluid is sprayed to the outer surface of the heat exchange tube through a spraying port in the spraying tube, part of the cleaning fluid penetrates through a gap of the heat exchange tube and is sprayed to the inner wall of the shell to be reflected, the other side of the heat exchange tube is washed, the cleaning fluid flows back to the cleaning box after washing, circulating washing operation is carried out, and the heat exchange tube is guaranteed to be thoroughly cleaned.
As a preferable structure, as shown in fig. 1, a protective cover 11 is disposed outside the cleaning system and the housing 3, the medium inlet pipe 4 and the medium outlet pipe 5 are both disposed in the protective cover 11 and outside the housing 3, and both the inlet end of the medium inlet pipe 4 and the outlet end of the medium outlet pipe 5 penetrate through the protective cover 11; the two side flues 2 communicated with the shell 3 penetrate through the protective cover 11. The medium inlet pipe, the medium outlet pipe and the shell outer cleaning system are protected by the protective cover, and cleaning liquid is prevented from overflowing to pollute the surrounding environment in the cleaning process.
In a preferred embodiment of the present invention, as shown in fig. 1 and 3, the spray pipe 6 includes an upper spray pipe 61 and a lower spray pipe 62, the upper spray pipe 61 and the lower spray pipe 62 are respectively horizontally disposed on the upper portion and the lower portion of the heat exchange pipe 1, the plurality of heat exchange pipes 1 are vertically disposed in the housing 3, and a plurality of spray ports 10 are respectively disposed on one side of the upper spray pipe 61 and one side of the lower spray pipe 62 facing the heat exchange pipes 1; the two ends of the upper spray pipe 61 and the lower spray pipe 62 are rotatably connected with the shell 3, and the upper spray pipe 61 and the lower spray pipe 62 are connected with the deflection mechanism and used for driving the upper spray pipe 61 and the lower spray pipe 62 to spray cleaning liquid to the heat exchange pipe 1 up and down in the swinging process. Wherein, two branch pipes of the cleaning pipeline 8 are respectively connected with the upper spray pipe 61 and the lower spray pipe 62 through hoses, and sealing rings can also be arranged between the joint matching surfaces of the branch pipes and the junction of the upper spray pipe 61 and the lower spray pipe 62. The upper spray pipe 61 and the lower spray pipe 62 are driven to rotate in a small range by the deflection mechanism, so that high-pressure cleaning liquid sprayed from the spray openings of the upper spray pipe 61 and the lower spray pipe 62 is swept up and down, and the heat exchange pipe is thoroughly cleaned.
In a specific embodiment of the present invention, as shown in fig. 1 and 3, the deflection mechanism includes a motor 12, a connecting plate 13 and a swing rod 14, the motor 12 is disposed on the inner wall of the protecting cover 11, the output shaft of the motor 12 is fixedly connected to the middle of the connecting plate 13, the swing rod 14 is two and is a telescopic rod, one end of the swing rod 14 is connected to the edge of the connecting plate 13, and the other ends of the two swing rods 14 are respectively connected to the upper spray pipe 61 and the lower spray pipe 62. Wherein the motor 12 is a stepper motor. The stepping motor runs intermittently to drive the connecting plate to rotate intermittently, so that the upper spray pipe 61 and the lower spray pipe 62 are driven to rotate in a reciprocating mode in a small range.
Wherein, two pendulum rods 14 set up respectively in the middle part of last spray tube 61, lower spray tube 62, go up the fixed ring 15 of middle part overcoat of spray tube 61 and lower spray tube 62, pendulum rod 14 end is connected with fixed ring 15 rotation. The upper spray pipe 61 and the lower spray pipe 62 are driven by the middle fixing ring 15, and the upper spray pipe 61 and the lower spray pipe 62 are ensured to rotate smoothly.
Further optimizing the technical scheme, the connecting plate 13 is a triangular plate or a waist-shaped plate, and the two swing rods 14 are respectively and rotatably connected with the two protruding end parts of the triangular plate or the waist-shaped plate; the tail end of the swing rod 14 is connected with the fixing ring 15 through a high-strength spring, and the spray pipe is enabled to rotate in a small range through the spring. The swing rod swings along with the rotation of the connecting plate, and then drives the fixing ring and the spray pipe to rotate in a small range.
In order to ensure that the upper spray pipe and the lower spray pipe rotate flexibly, two ends of the upper spray pipe 61 and the lower spray pipe 62 are arranged in the bearing seat 16, the bearing seat 16 is arranged on the outer wall of the shell 3, and the upper spray pipe 61 and the lower spray pipe 62 are in running fit with the bearing seat 16 through bearings.
In addition, in order to ensure the cleaning effect, fine sand can be added into the cleaning liquid, and meanwhile, a stirrer is arranged in the cleaning box to ensure that the fine sand is mixed in the cleaning liquid and is conveyed to the spray pipe along with the cleaning pipeline. The cleaning liquid with the fine sand is pressurized and then sprayed to the surface of the heat exchange tube, the fine sand is doped in the high-pressure cleaning liquid to rub and impact the surface of the heat exchange tube, and the surface of the heat exchange tube is washed for multiple times under the reflection action of the inner wall of the shell, so that dirt on the surface of the heat exchange tube can be quickly removed.
To sum up, the utility model has the advantages of simple structure is compact, the cleaning performance is good, utilizes the delivery pump to pressurize the washing liquid, rotates through step motor drive connecting plate by a small margin, and then drives spray tube and lower spray tube by a small margin through pendulum rod and solid fixed ring and rotate, and the high-pressure washing liquid sprays and goes out from spraying the mouth, directly spouts to the heat exchange tube surface or spouts to the heat exchange tube surface through the reflection of shells inner wall, carries out striking friction to the dirt on heat exchange tube surface, realizes online quick abluent purpose. Utilize the utility model discloses can reduce down time, reduce flue gas calorific loss, guarantee heat exchange tube and flue gas heat exchange effect.
In the above description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be implemented in other ways different from the one described herein, and those skilled in the art may similarly generalize the present invention without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed above.
Claims (9)
1. A self-cleaning heat exchanger, characterized in that: the heat exchange device comprises a plurality of heat exchange tubes, a cleaning system and a shell connected with a flue, wherein the heat exchange tubes are arranged in the shell in parallel, the cleaning system is arranged on the outer sides of the shell and the heat exchange tubes, the tops of the heat exchange tubes are all communicated with a medium inlet tube filled with a medium to be heat absorbed, and the bottoms of the heat exchange tubes are all communicated with a medium outlet tube; the cleaning system comprises a spray pipe, a delivery pump, a cleaning pipeline and a cleaning box, wherein the cleaning box filled with cleaning liquid is arranged at the bottom of the shell and is communicated with the shell, and the spray pipe is provided with a plurality of spray ports facing to the heat exchange pipe in the shell; and the inlet and the outlet of the delivery pump are respectively communicated with the cleaning box and the spray pipe through cleaning pipelines.
2. The self-cleaning heat exchanger of claim 1, wherein: the cleaning system and the shell are externally provided with protective covers, the medium inlet pipe and the medium outlet pipe are both arranged in the protective covers and are arranged outside the shell, and the inlet end of the medium inlet pipe and the outlet end of the medium outlet pipe both penetrate through the protective covers; and the flues at the two sides communicated with the shell all penetrate through the protective cover.
3. The self-cleaning heat exchanger of claim 2, wherein: the spray pipes comprise upper spray pipes and lower spray pipes, the upper spray pipes and the lower spray pipes are respectively horizontally arranged at the upper parts and the lower parts of the heat exchange pipes, the heat exchange pipes are vertically arranged in the shell, and a plurality of spray openings are respectively formed in one sides of the upper spray pipes and the lower spray pipes, which face the heat exchange pipes; the two ends of the upper spray pipe and the lower spray pipe are rotatably connected with the shell, and the upper spray pipe and the lower spray pipe are connected with the deflection mechanism and used for driving the upper spray pipe and the lower spray pipe to spray cleaning liquid to the heat exchange pipe up and down in the swinging process.
4. A self-cleaning heat exchanger according to claim 3, wherein: the deflection mechanism comprises a motor, a connecting plate and swing rods, the motor is arranged on the inner wall of the protective cover, the output shaft of the motor is fixedly connected with the middle of the connecting plate, the swing rods are two telescopic rods, one end of each swing rod is rotatably connected with the edge of the connecting plate, and the other end of each swing rod is rotatably connected with the upper spray pipe and the lower spray pipe respectively.
5. The self-cleaning heat exchanger of claim 4, wherein: two pendulum rods set up respectively in the middle part of last spray tube, lower spray tube, go up the fixed ring of middle part overcoat of spray tube and lower spray tube, the pendulum rod end rotates with fixed ring to be connected.
6. The self-cleaning heat exchanger of claim 4, wherein: the connecting plate is a triangular plate or a waist-shaped plate, and the two swing rods are respectively connected with the two protruding end parts of the triangular plate or the waist-shaped plate in a rotating mode.
7. The self-cleaning heat exchanger of claim 5, wherein: the tail end of the swing rod is connected with the fixing ring through a high-strength spring.
8. The self-cleaning heat exchanger of claim 4, wherein: the motor is a stepping motor.
9. A self-cleaning heat exchanger according to any of claims 3 to 8, wherein: the two ends of the upper spray pipe and the lower spray pipe are arranged in the bearing seats, the bearing seats are arranged on the outer wall of the shell, and the upper spray pipe and the lower spray pipe are in running fit with the bearing seats through bearings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921016334.2U CN210268346U (en) | 2019-07-02 | 2019-07-02 | Self-cleaning type heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921016334.2U CN210268346U (en) | 2019-07-02 | 2019-07-02 | Self-cleaning type heat exchanger |
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| Publication Number | Publication Date |
|---|---|
| CN210268346U true CN210268346U (en) | 2020-04-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921016334.2U Active CN210268346U (en) | 2019-07-02 | 2019-07-02 | Self-cleaning type heat exchanger |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113137868A (en) * | 2021-05-28 | 2021-07-20 | 瀚能(苏州)节能科技有限公司 | Heat exchanger with spraying and cleaning functions |
| CN116255840A (en) * | 2023-05-15 | 2023-06-13 | 泰州胤峰新能源科技有限公司 | Emission reduction heat exchanger for engine tail gas |
-
2019
- 2019-07-02 CN CN201921016334.2U patent/CN210268346U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113137868A (en) * | 2021-05-28 | 2021-07-20 | 瀚能(苏州)节能科技有限公司 | Heat exchanger with spraying and cleaning functions |
| CN116255840A (en) * | 2023-05-15 | 2023-06-13 | 泰州胤峰新能源科技有限公司 | Emission reduction heat exchanger for engine tail gas |
| CN116255840B (en) * | 2023-05-15 | 2023-08-04 | 泰州胤峰新能源科技有限公司 | Emission reduction heat exchanger for engine tail gas |
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