CN113418305A - Marine electric heater protection device - Google Patents
Marine electric heater protection device Download PDFInfo
- Publication number
- CN113418305A CN113418305A CN202110614804.0A CN202110614804A CN113418305A CN 113418305 A CN113418305 A CN 113418305A CN 202110614804 A CN202110614804 A CN 202110614804A CN 113418305 A CN113418305 A CN 113418305A
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- China
- Prior art keywords
- explosion
- proof insulating
- discharge chamber
- electric heater
- pressure discharge
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/20—Arrangement or mounting of control or safety devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/18—Arrangement or mounting of grates or heating means
Abstract
The invention relates to a protective device for a marine electric heater, which comprises an explosion-proof insulating shell, a mounting port arranged at the front end of the explosion-proof insulating shell, a sealing plate arranged at the mounting port, a temperature sensor and a pressure sensor which are connected to the inner wall of the upper end of the explosion-proof insulating shell, an insulating drain pipe connected to one side wall of the explosion-proof insulating shell, and a plurality of pressure regulating mechanisms arranged in one side wall of the explosion-proof insulating shell, wherein the pressure regulating mechanisms are used for regulating the pressure in the explosion-proof insulating shell. This marine electric heater protection device, the temperature that can real-time supervision electric heater and the pressure in the explosion-proof insulating casing, if electric heater high temperature appears or explosion-proof insulating casing inside pressure when too high, carry out pressure regulation to explosion-proof insulating casing inside by oneself to send alarm signal to the control cabinet, can effectually prevent through explosion-proof insulating casing that overheated and the condition of explosion jar appear in the electric heater, also can prevent the electrically conductive condition of liquid outflow to appear after the electric heater damages simultaneously.
Description
Technical Field
The invention belongs to the technical field of electric heater safety, and particularly relates to a protective device for a marine electric heater.
Background
An electric heater is a popular electric heating device in the world. The device is used for heating, preserving heat and heating flowing liquid and gaseous media. When the heating medium passes through the heating cavity of the electric heater under the action of pressure, the fluid thermodynamic principle is adopted to uniformly take away huge heat generated in the working process of the electric heating element, so that the temperature of the heated medium meets the process requirements of users.
The electric heaters are widely used and can be classified into resistance heating, induction heating, arc heating, electron beam heating, infrared heating and dielectric heating according to the working principle.
The electric heater is a device which consumes electric energy and converts the electric energy into heat energy to heat materials to be heated. The low-temperature fluid medium enters the input port of the electric heating container under the action of pressure in the work, the high-temperature heat energy generated in the work of the electric heating element is taken away along a specific heat exchange flow channel in the electric heating container by applying a path designed by the fluid thermodynamic principle, so that the temperature of the heated medium is increased, and the high-temperature medium required by the process is obtained at the outlet of the electric heater. The internal control system of the electric heater automatically adjusts the output power of the electric heater according to the signal of the temperature sensor at the output port, so that the temperature of the medium at the output port is uniform; when the heating element is over-temperature, the independent overheating protection device of the heating element immediately cuts off the heating power supply, thereby avoiding the heating element from burning out due to coking, deterioration and carbonization caused by over-temperature of the heating material, and effectively prolonging the service life of the electric heater.
With the technical progress and maturity of the electric heater, the application field of the electric heater is gradually wide, such as the electric heater for the ship, but the external part of the common electric heater for the ship at present does not have a related protection mechanism to protect the electric heater, the electric heater body is easily affected by external factors, and cannot be monitored in real time, once a fault or damage occurs, the loss is large, and the personal safety of the surrounding environment and workers is easily threatened.
Disclosure of Invention
The present invention is directed to solving the above problems and providing a protection device for an electric heater for a ship.
The invention realizes the purpose through the following technical scheme:
the utility model provides a marine electric heater protection device, includes explosion-proof insulation shell, locates the installing port of explosion-proof insulation shell front end, locates the closing plate of installing port department, connects temperature sensor and the pressure sensor of explosion-proof insulation shell upper end inner wall department, connects the insulating drain pipe on explosion-proof insulation shell one side wall and locates a plurality of pressure adjustment mechanism in explosion-proof insulation shell lateral wall, pressure adjustment mechanism is used for adjusting the pressure in the explosion-proof insulation shell, the position that another lateral wall of explosion-proof insulation shell is close to the front end is equipped with a spout that supplies the closing plate to slide, and spout and explosion-proof insulation shell inner chamber intercommunication, explosion-proof insulation shell bottom is equipped with the cylinder, and the output and the closing plate lower extreme of cylinder are connected, be connected with self-locking mechanism between the upper end of closing plate and another lateral wall of explosion-proof insulation shell.
As a further optimization scheme of the invention, the pressure regulating mechanism comprises a first pressure discharge chamber, a middle through groove, a second pressure discharge chamber, an exhaust hole, a drainage channel, a connecting rod arranged in the middle through groove, a connecting plate connected to one end of the connecting rod, a plugging block connected to the other end of the connecting rod and a sealing plug body wrapped outside the plugging block, wherein the first pressure discharge chamber, the middle through groove and the second pressure discharge chamber are communicated with each other, a spring is connected between the connecting plate and the inner wall of the first pressure discharge chamber, and the spring is sleeved on the connecting rod.
As a further optimization scheme of the explosion-proof insulation shell, the first pressure discharge chamber is located on one side, close to the interior of the explosion-proof insulation shell, of the through groove, the second pressure discharge chamber is located on one side, close to the exterior of the explosion-proof insulation shell, of the through groove, the exhaust hole and the drainage channel are communicated with the second pressure discharge chamber, and the second pressure discharge chamber is communicated with the insulation drainage pipe through the drainage channel.
As a further optimization scheme of the invention, a waterproof breathable film is arranged at the communication position of the exhaust hole and the second pressure discharge chamber, the exhaust hole is positioned above the second pressure discharge chamber, and the water discharge channel is positioned below the second pressure discharge chamber.
As a further optimized scheme of the invention, the second pressure discharge chamber is a circular truncated cone-shaped through groove, the block is a cylinder, the diameter of the block is the same as the diameter of a small opening of the second pressure discharge chamber, and the sealing plug body is in contact with the inner wall of the second pressure discharge chamber.
As a further optimization scheme of the invention, the waterproof breathable film is positioned on the inner wall of the second pressure discharge chamber and close to the through groove, the waterproof breathable film is not in contact with the sealing plug body, and the blocking block is in contact with the inner wall of the second pressure discharge chamber.
As a further optimization scheme of the invention, the self-locking mechanism comprises a fixed sleeve connected to the other side wall of the explosion-proof insulating shell, an internal rotation pipe arranged in the fixed sleeve and a screw rod connected to the upper end of the sealing plate, wherein a screw hole matched with the screw rod is formed in the internal rotation pipe.
As a further optimization scheme of the invention, a limiting groove is arranged on the inner wall of the fixed sleeve, and a limiting ring matched with the limiting groove is connected on the outer wall of the internal rotation pipe.
As a further optimized scheme of the invention, the sealing plate is provided with a groove, and the explosion-proof insulating shell is provided with a plurality of pipeline mounting holes.
The invention has the beneficial effects that:
1) the anti-explosion electric heater protection device adopts the anti-explosion insulating shell to protect the electric heater in all directions, can monitor the temperature and the pressure outside the electric heater in real time, can send an alarm signal to the control terminal in real time if the electric heater has overhigh temperature or leaks, can cut off the power supply of the electric heater in real time by a worker, can perform pressure self-adaptive adjustment through the pressure adjusting mechanism on the anti-explosion insulating shell, prevents the leakage of the electric heater from influencing the outside, and has higher safety;
2) the invention has simple structure, high stability, reasonable design and convenient realization.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a front view of the present invention;
FIG. 3 is a partial cross-sectional view of the present invention;
FIG. 4 is an enlarged view at A in the present invention;
fig. 5 is a view of the engagement of the locking collar and the inner coil in accordance with the present invention.
In the figure: 1. an explosion-proof insulating housing; 101. an installation port; 102. a sealing plate; 103. a groove; 104. an insulated drain pipe; 105. a cylinder; 106. a self-locking mechanism; 1060. fixing the sleeve; 1061. a screw; 1062. an inner coil; 1063. a limiting ring; 107. a temperature sensor; 108. a pressure sensor; 2. a pressure intensity adjusting mechanism; 201. a first pressure discharge chamber; 202. a middle through groove; 203. a second plenum chamber; 204. a connecting rod; 205. a connecting plate; 206. a spring; 207. blocking; 208. a sealing plug body; 209. an exhaust hole; 210. a drainage channel; 211. waterproof ventilated membrane.
Detailed Description
The present application will now be described in further detail with reference to the drawings, it should be noted that the following detailed description is given for illustrative purposes only and is not to be construed as limiting the scope of the present application, as those skilled in the art will be able to make numerous insubstantial modifications and adaptations to the present application based on the above disclosure.
Example 1
As shown in fig. 1-5, a protection device for a marine electric heater comprises an explosion-proof insulating casing 1, a mounting port 101 arranged at the front end of the explosion-proof insulating casing 1, a sealing plate 102 arranged at the mounting port 101, the pressure regulating mechanism 2 is used for regulating the pressure in the explosion-proof insulating shell 1, a sliding groove for the sealing plate 102 to slide is formed in the position, close to the front end, of the other side wall of the explosion-proof insulating shell 1, the sliding groove is communicated with the inner cavity of the explosion-proof insulating shell 1, an air cylinder 105 is arranged at the bottom of the explosion-proof insulating shell 1, the output end of the air cylinder 105 is connected with the lower end of the sealing plate 102, and a self-locking mechanism 106 is connected between the upper end of the sealing plate 102 and the other side wall of the explosion-proof insulating shell 1. The temperature sensor 107 and the pressure sensor 108 are connected with the control terminal in real time, and for the prior art, the types and the arrangement modes of the temperature sensor 107 and the pressure sensor 108 can be adjusted adaptively according to actual design.
The self-locking mechanism 106 comprises a fixed sleeve 1060 connected to the other side wall of the explosion-proof insulating shell 1, an internal rotation pipe 1062 arranged in the fixed sleeve 1060, and a screw 1061 connected to the upper end of the sealing plate 102, wherein a screw hole matched with the screw 1061 is formed in the internal rotation pipe 1062; the inner wall of the fixed sleeve 1060 is provided with a limit groove, and the outer wall of the internal rotation pipe 1062 is connected with a limit ring 1063 matched with the limit groove.
The sealing plate 102 is provided with a groove 103, and the explosion-proof insulating shell 1 is provided with a plurality of pipeline mounting holes. The sealing plate 102 may be controlled by the cylinder 105, or may be controlled manually, and the pipes and lines of the electric heater may be arranged at the pipe installation holes, and the gaps at the pipe installation holes may be sealed by the sealing members after the arrangement and installation are completed.
Explosion-proof insulating casing 1 can carry out the omnidirectional protection to the electric heater of its inside placing, and after installing electric heater to explosion-proof insulating casing 1, drive sealing plate 102 through cylinder 105 and seal installing port 101, wherein, be provided with the observation window on the sealing plate 102, can real-time inside circumstances of observing, can prevent that external factors from causing the influence to electric heater simultaneously.
In the process that the sealing plate 102 seals the mounting opening 101, the screw 1061 connected to the upper end of the sealing plate 102 moves along with the movement of the sealing plate 102 until the screw 1061 is inserted into the internal rotation tube 1062 in the fixing sleeve 1060, and with the insertion of the screw 1061, the internal rotation tube 1062 rotates in the fixing sleeve 1060 to adapt to the insertion of the screw 1061, and due to the rotational friction between the screw 1061 and the internal rotation tube 1062, the sealing plate 102 cannot be opened under the action of an external force in a non-specified direction, so that the sealing plate 102 can be effectively prevented from being pushed open due to the increase of pressure in the explosion-proof insulating housing 1, and a self-locking effect is achieved.
The pressure regulating mechanism 2 comprises a first pressure discharge chamber 201, a middle through groove 202, a second pressure discharge chamber 203, an exhaust hole 209, a drainage channel 210, a connecting rod 204 arranged in the middle through groove 202, a connecting plate 205 connected to one end of the connecting rod 204, a plug block 207 connected to the other end of the connecting rod 204 and a sealing plug body 208 wrapped outside the plug block 207, wherein the first pressure discharge chamber 201, the middle through groove 202 and the second pressure discharge chamber 203 are communicated with each other, a spring 206 is connected between the connecting plate 205 and the inner wall of the first pressure discharge chamber 201, and the spring 206 is sleeved on the connecting rod 204; the first pressure discharge chamber 201 is positioned on one side of the through groove 202 close to the interior of the explosion-proof insulating shell 1, the second pressure discharge chamber 203 is positioned on one side of the through groove 202 close to the exterior of the explosion-proof insulating shell 1, the exhaust hole 209 and the drainage channel 210 are both communicated with the second pressure discharge chamber 203, and the second pressure discharge chamber 203 is communicated with the insulating drainage pipe 104 through the drainage channel 210; a waterproof breathable film 211 is arranged at the communication position of the vent hole 209 and the second pressure discharge chamber 203, the vent hole 209 is positioned above the second pressure discharge chamber 203, and the drainage channel 210 is positioned below the second pressure discharge chamber 203; the second pressure discharge chamber 203 is a circular truncated cone-shaped through groove, the blocking block 207 is a cylinder, the diameter of the blocking block 207 is the same as the diameter of a small opening of the second pressure discharge chamber 203, and the sealing plug body 208 is in contact with the inner wall of the second pressure discharge chamber 203; the waterproof ventilated membrane 211 is positioned on the inner wall of the second pressure discharge chamber 203 and close to the through groove 202, the waterproof ventilated membrane 211 is not in contact with the sealing plug body 208, and the blocking block 207 is in contact with the inner wall of the second pressure discharge chamber 203.
When the electric heater in the explosion-proof insulating housing 1 breaks down, such as the conditions of overhigh temperature, content leakage or cylinder explosion, the explosion-proof insulating housing 1 can play a role in reducing the influence range of the fault, the pressure inside the explosion-proof insulating housing 1 can be automatically adjusted, the condition of overhigh pressure is prevented, leaked substances such as liquid, gas and the like can be separately discharged, and the leaked substances are prevented from being electrically conducted to cause damage to external articles or workers.
When the pressure adjusting mechanism 2 adaptively adjusts the pressure inside the explosion-proof insulating shell 1, the connecting plate 205 and the block 207 are pressed to press the outside of the explosion-proof insulating shell 1 to move, at the moment, the spring 206 and the sealing plug body 208 are in a compressed state, along with the movement of the block 207, the sealing plug body 208 deforms and gradually fills up the gap between the block 207 and the second pressure discharge chamber 203, so that leakage can be prevented from being directly discharged from the second pressure discharge chamber 203, at the moment, the block 207 does not seal the through groove 202 any more, the leakage enters the second pressure discharge chamber 203 from the through groove 202, gas inside the explosion-proof insulating shell 1 is discharged from the exhaust hole 209 through the waterproof air-permeable membrane 211, liquid in the leakage flows into the insulating drain pipe 104 from the drain passage 210, and in the process, high-temperature liquid is cooled in the drain passage 210 and finally discharged into a corresponding processing point from the insulating drain pipe 104, the leakage object does not contact with the outside in the whole process, the leakage object can be effectively prevented from conducting electricity and influencing other outside equipment or workers, the pressure in the explosion-proof insulating shell 1 can be adjusted in a self-adaptive mode, the influence of cylinder explosion and leakage of the electric heater can be effectively reduced, and the safety performance is greatly improved.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention.
Claims (9)
1. The utility model provides a marine electric heater protection device which characterized in that: comprises an explosion-proof insulating shell (1), a mounting port (101) arranged at the front end of the explosion-proof insulating shell (1), a sealing plate (102) arranged at the mounting port (101), a temperature sensor (107) and a pressure sensor (108) which are connected with the inner wall of the upper end of the explosion-proof insulating shell (1), an insulating drain pipe (104) connected with one side wall of the explosion-proof insulating shell (1), and a plurality of pressure regulating mechanisms (2) arranged in one side wall of the explosion-proof insulating shell (1), wherein the pressure regulating mechanisms (2) are used for regulating the pressure in the explosion-proof insulating shell (1), a chute for the sealing plate (102) to slide is arranged at the position close to the front end of the other side wall of the explosion-proof insulating shell (1), the chute is communicated with the inner cavity of the explosion-proof insulating shell (1), an air cylinder (105) is arranged at the bottom of the explosion-proof insulating shell (1), and the output end of the air cylinder (105) is connected with the lower end of the sealing plate (102), and a self-locking mechanism (106) is connected between the upper end of the sealing plate (102) and the other side wall of the explosion-proof insulating shell (1).
2. The electric heater protection device for the ship according to claim 1, characterized in that: the pressure adjusting mechanism (2) comprises a first pressure discharge chamber (201), a middle through groove (202), a second pressure discharge chamber (203), an exhaust hole (209), a drainage channel (210) arranged in one side wall of the explosion-proof insulating shell (1), a connecting rod (204) arranged in the middle through groove (202), a connecting plate (205) connected to one end of the connecting rod (204), a plug block (207) connected to the other end of the connecting rod (204), and a sealing plug body (208) wrapped outside the plug block (207), wherein the first pressure discharge chamber (201), the middle through groove (202) and the second pressure discharge chamber (203) are communicated with each other, a spring (206) is connected between the connecting plate (205) and the inner wall of the first pressure discharge chamber (201), and the spring (206) is sleeved on the connecting rod (204).
3. The electric heater protection device for the ship according to claim 2, characterized in that: the first pressure discharge chamber (201) is located at one side of the middle through groove (202) close to the interior of the explosion-proof insulating shell (1), the second pressure discharge chamber (203) is located at one side of the middle through groove (202) close to the exterior of the explosion-proof insulating shell (1), the exhaust hole (209) and the drainage channel (210) are communicated with the second pressure discharge chamber (203), and the second pressure discharge chamber (203) is communicated with the insulating drainage pipe (104) through the drainage channel (210).
4. The electric heater protection device for the ship according to claim 3, characterized in that: the vent hole (209) and the second pressure discharge chamber (203) are communicated to be provided with a waterproof breathable film (211), the vent hole (209) is positioned above the second pressure discharge chamber (203), and the drainage channel (210) is positioned below the second pressure discharge chamber (203).
5. The electric heater protection device for the ship according to claim 2, characterized in that: the second pressure discharge chamber (203) is a circular truncated cone-shaped through groove, the blocking block (207) is a cylinder, the diameter of the blocking block (207) is the same as the diameter of a small opening of the second pressure discharge chamber (203), and the sealing plug body (208) is in contact with the inner wall of the second pressure discharge chamber (203).
6. The electric heater protection device for the ship according to claim 4, characterized in that: the waterproof ventilated membrane (211) is located at a position close to the through groove (202) on the inner wall of the second pressure discharge chamber (203), the waterproof ventilated membrane (211) is not in contact with the sealing plug body (208), and the blocking block (207) is in contact with the inner wall of the second pressure discharge chamber (203).
7. The electric heater protection device for the ship according to claim 1, characterized in that: the self-locking mechanism (106) comprises a fixing sleeve (1060) connected to the other side wall of the explosion-proof insulating shell (1), an inner rotating pipe (1062) arranged in the fixing sleeve (1060) and a screw rod (1061) connected to the upper end of the sealing plate (102), wherein a screw hole matched with the screw rod (1061) is formed in the inner rotating pipe (1062).
8. The electric heater protection device for the ship according to claim 7, wherein: the inner wall of the fixed sleeve (1060) is provided with a limiting groove, and the outer wall of the inner coil (1062) is connected with a limiting ring (1063) matched with the limiting groove.
9. The electric heater protection device for the ship according to claim 1, characterized in that: a groove (103) is formed in the sealing plate (102), and a plurality of pipeline mounting holes are formed in the explosion-proof insulating shell (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110614804.0A CN113418305B (en) | 2021-06-02 | 2021-06-02 | Marine electric heater protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110614804.0A CN113418305B (en) | 2021-06-02 | 2021-06-02 | Marine electric heater protection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113418305A true CN113418305A (en) | 2021-09-21 |
| CN113418305B CN113418305B (en) | 2022-07-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110614804.0A Active CN113418305B (en) | 2021-06-02 | 2021-06-02 | Marine electric heater protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113418305B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6048435A (en) * | 1983-08-26 | 1985-03-16 | Mitsubishi Heavy Ind Ltd | Thermal medium heating device |
| CN206024140U (en) * | 2016-09-27 | 2017-03-15 | 安庆船用电器有限责任公司 | A kind of horizontal explosion-proof type electric heater for ship |
| CN207148681U (en) * | 2017-09-14 | 2018-03-27 | 湖北高天试验设备有限公司 | A kind of explosion-proof test case |
| CN108901087A (en) * | 2018-06-12 | 2018-11-27 | 方碧水 | A kind of dedicated explosion-protection equipment of heater |
| CN209655581U (en) * | 2019-01-29 | 2019-11-19 | 欧贝电气（天津）有限公司 | A kind of multi-functional container type anti-explosion electric heater |
| CN212810936U (en) * | 2020-08-27 | 2021-03-26 | 广东明煌电力工程有限公司 | Outdoor power distribution cabinet with self-locking function |
| CN212849419U (en) * | 2020-09-11 | 2021-03-30 | 浙江佳乘电气有限公司 | Cubical switchboard that possesses explosion-proof function |
| CN213304252U (en) * | 2020-11-18 | 2021-05-28 | 置富电子技术(东莞)有限公司 | Lithium ion battery pack with explosion-proof mechanism for electric vehicle |
-
2021
- 2021-06-02 CN CN202110614804.0A patent/CN113418305B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6048435A (en) * | 1983-08-26 | 1985-03-16 | Mitsubishi Heavy Ind Ltd | Thermal medium heating device |
| CN206024140U (en) * | 2016-09-27 | 2017-03-15 | 安庆船用电器有限责任公司 | A kind of horizontal explosion-proof type electric heater for ship |
| CN207148681U (en) * | 2017-09-14 | 2018-03-27 | 湖北高天试验设备有限公司 | A kind of explosion-proof test case |
| CN108901087A (en) * | 2018-06-12 | 2018-11-27 | 方碧水 | A kind of dedicated explosion-protection equipment of heater |
| CN209655581U (en) * | 2019-01-29 | 2019-11-19 | 欧贝电气（天津）有限公司 | A kind of multi-functional container type anti-explosion electric heater |
| CN212810936U (en) * | 2020-08-27 | 2021-03-26 | 广东明煌电力工程有限公司 | Outdoor power distribution cabinet with self-locking function |
| CN212849419U (en) * | 2020-09-11 | 2021-03-30 | 浙江佳乘电气有限公司 | Cubical switchboard that possesses explosion-proof function |
| CN213304252U (en) * | 2020-11-18 | 2021-05-28 | 置富电子技术(东莞)有限公司 | Lithium ion battery pack with explosion-proof mechanism for electric vehicle |
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| CN113418305B (en) | 2022-07-12 |
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