An offshore explosion-proof electric heating system

Abstract

The present invention relates to an offshore explosion-proof electric heating system, comprising: a wiring chamber, several electric heating tubes are connected to the end of the wiring chamber, and the electric heating tubes pass through the flange; a pressure vessel, the pressure vessel has an inlet and an outlet, the end of the pressure vessel is installed on the flange, and the electric heating tubes are inserted into the pressure vessel. In the present invention, a pump is used to pump the medium to be heated into the first water-cooling tank from the inlet to cool the surface of the wiring chamber. The medium in the first water-cooling tank can flow into the second water-cooling tank to cool the side wall of the wiring chamber. At the same time, the second water-cooling tank can cool the part where the electric heating tube contacts the wiring chamber, further improving the cooling effect. The connecting pipe discharges the medium inside the second water-cooling tank to the pressure vessel again through the nozzle, so that the medium in the first water-cooling tank and the second water-cooling tank circulates, further improving the heat dissipation effect of the wiring chamber.

Description

Technical Field

[0001] The present invention relates to the technical field of electric heaters, and more particularly, to an offshore explosion-proof electric heating system. Background Art

[0002] An explosion-proof electric heater is a heating device for heating flammable and explosive fluid media such as hydrogen or oils and fats, and is mainly used for anti-freezing, heat preservation and heating of equipment such as pipelines, valves, pump bodies, and tanks in industries such as petroleum, chemical industry, electric power, machinery, and offshore engineering.

[0003] Among them, offshore engineering refers to new, renovated and expanded projects aimed at developing, utilizing, protecting and restoring marine resources, and the main body of the project is located on the seaward side of the coastline. In the heating of ships and offshore construction, methods such as boilers and hot air are generally used for heating, which not only causes serious pollution and huge energy consumption, but also fails to meet the technological requirements of advanced shipbuilding, affecting the progress of ships and construction projects. However, when the existing electric heaters are heating, they usually use electric heating devices to heat the heating pipes. The long-term heat transfer between the electric heater and the heating device easily causes the internal cable temperature to be too high and corroded, affecting the service life and prone to explosion. Therefore, an offshore explosion-proof electric heating system is designed to solve the above problems. Summary of the Invention

[0004] The purpose of the present invention is to provide an offshore explosion-proof electric heating system.

[0005] To solve the above technical problems, the present invention provides an offshore explosion-proof electric heating system, including: a wiring chamber, several electric heating pipes are connected to the end of the wiring chamber, and the electric heating pipes pass through the flange; a pressure vessel, the pressure vessel has an inlet and an outlet, the end of the pressure vessel is installed on the flange, and the electric heating pipes are inserted into the pressure vessel; an explosion-proof part, the explosion-proof part includes a first water cooling box sleeved on the surface of the wiring chamber, a water pump fixed on the top of the first water cooling box, and water pipes connected to both ends of the water pump, and the other end of the water pipe is connected to the inlet; wherein the water pump pumps the liquid in the inlet into the first water cooling box to cool the wiring chamber.

[0006] Further, a second water cooling box is arranged on one side of the wiring chamber, the second water cooling box is annular, the second water cooling box is communicated with the first water cooling box, and the end of the electric heating pipe passes through the second water cooling box and is connected to the wiring chamber.

[0007] Further, a water outlet pipe is connected to one side of the second water cooling box, one end of the water outlet pipe is connected to a water tank, and several spray heads are arranged on one side of the water tank.

[0008] Further, the water tank is semi-circular, and the bottom of the water tank fits the inner bottom wall of the pressure vessel.

[0009] Further, a corrugated pipe is provided at the middle position of the water outlet pipe, and the corrugated pipe is located inside the pressure vessel.

[0010] Further, one side of the water tank is fixed with a screw rod, one end of the screw rod is provided with a handle, and the screw rod penetrates through the flange.

[0011] Further, two groups of support rods are fixed between the flange and the second water cooling box.

[0012] Further, a bracket is fixed on the top of the flange, a support sleeve is fixed on the top of the bracket, and the support sleeve is sleeved on the water pipe.

[0013] The beneficial effect of the present invention is that a marine explosion-proof electric heating system of the present invention

[0014] 1. The medium to be heated is pumped into the first water tank from the inlet through a water pump to cool the surface of the wiring chamber. The medium in the first water cooling box can flow into the second water cooling box to cool the side wall of the wiring chamber, and at the same time, the second water cooling box can cool the part where the electric heating pipe contacts the wiring chamber, further improving the cooling effect. The connecting pipe discharges the medium inside the second water cooling box to the pressure vessel again through the nozzle, so that the medium in the first water cooling box and the second water cooling box circulates, further improving the heat dissipation effect of the wiring chamber.

[0015] 2. The clean water is pumped into the first water cooling box and the second water cooling box again through the water pipes connected to both ends of the water pump, and the bottom of the pressure vessel is flushed through the nozzle, and the impurities at the bottom are discharged from the outlet, realizing the effect of cleaning the bottom of the pressure vessel.

[0016] 3. By arranging the first water cooling box to wrap the outer surface of the wiring chamber, the medium to be heated is pumped into the first water cooling box through a water pump to cool the surface of the wiring chamber, so that the wiring chamber can be explosion-proof and the service life of the wiring chamber can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described below with reference to the drawings and embodiments.

[0018] Figure 1 is a perspective view of a preferred embodiment of the present invention;

[0019] Figure 2 is a front cross-sectional structural schematic diagram of a preferred embodiment of the present invention;

[0020] Figure 3 is the Figure 1 partial enlarged structural schematic diagram at A in the present invention;

[0021] Figure 4 is the Figure 2 schematic diagram of the partial enlarged structure at position B in the present invention;

[0022] Figure 5 is the perspective view of the preferred embodiment of the water tank of the present invention.

[0023] In the figure:

[0024] 1. Wiring chamber; 11. Flange; 12. Electric heating tube;

[0025] 2. Pressure vessel;

[0026] 3. Inlet; 31. Outlet;

[0027] 4. Explosion-proof part; 41. First water cooling box; 42. Water pump; 43. Water pipe; 44. Second water cooling box; 45. Connecting pipe; 46. Water tank; 47. Sprayer; 48. Bellows;

[0028] 5. Handle; 51. Screw;

[0029] 6. Support rod;

[0030] 7. Bracket; 71. Support sleeve. Detailed implementation manners

[0031] Now, the present invention will be further described in detail with reference to the accompanying drawings. These drawings are all simplified schematic diagrams, only illustrating the basic structure of the present invention in a schematic manner, so they only show the components related to the present invention.

[0032] As Figures 1-5 shown, a kind of offshore explosion-proof electric heating system of the present invention includes: a wiring chamber 1, several electric heating tubes 12 are connected to the end of the wiring chamber 1, and the electric heating tubes pass through the flange 11; a pressure vessel 2, the pressure vessel 2 has an inlet 3 and an outlet 31, the end of the pressure vessel 2 is installed on the flange 11, and the electric heating tube 12 is inserted into the pressure vessel 2; an explosion-proof part 4, the explosion-proof part 4 includes a first water cooling box 41 sleeved on the surface of the wiring chamber 1 and a water pump 42 fixed on the top of the first water cooling box 41, and a water pipe 43 connected to both ends of the water pump 42, the other end of the water pipe 43 is connected to the inlet 3; wherein the water pump 42 pumps the liquid in the inlet 3 into the first water cooling box 41 to cool the wiring chamber 1.

[0033] By connecting the wiring chamber 1 to the electric heating tube 12 and connecting the wiring chamber 1 to an external power supply, the electric heating tube is powered on for heating. The medium to be heated enters the pressure vessel 2 through the inlet 3 for heating. This heating method is simple and convenient. When heating the medium, since the wiring chamber 1 is directly in contact with the heating tube and is in long-term power-on operation, it is easy to generate a relatively high temperature inside. When the temperature is high, it is easy to cause the internal cable temperature to be too high and damaged, and seriously cause the explosion of the wiring chamber 1. Therefore, by setting the first water cooling box 41 to wrap the outer surface of the wiring chamber 1, the medium to be heated is pumped into the first water cooling box 41 by the water pump 42 to cool the surface of the wiring chamber 1, so that the wiring chamber 1 can be explosion-proof and the service life of the wiring chamber 1 can be extended.

[0034] A second water cooling box 44 is provided on one side of the wiring chamber 1. The second water cooling box 44 is annular and is connected to the first water cooling box 41. The end of the electric heating tube 12 passes through the second water cooling box 44 and is connected to the wiring chamber 1.

[0035] By setting the second water cooling box 44, the second water cooling box 44 is fitted on the side wall of the wiring chamber 1 and is connected to the first water cooling box 41. The medium in the first water cooling box 41 can flow into the second water cooling box 44 to cool the side wall of the wiring chamber 1. At the same time, the second water cooling box 44 can cool the part where the electric heating tube 12 contacts the wiring chamber 1, further improving the cooling effect.

[0036] A connecting pipe 45 is connected to one side of the second water cooling box 44. One end of the connecting pipe 45 is connected to a water tank 46. A plurality of nozzles 47 are provided on one side of the water tank 46. The water tank 46 is semi-circular. The bottom of the water tank 46 is fitted to the inner bottom wall of the pressure vessel 2. A corrugated pipe 48 is provided at the middle position of the connecting pipe 45. The corrugated pipe 48 is located inside the pressure vessel 2. A screw rod 51 is fixed to one side of the water tank 46. A handle 5 is provided at one end of the screw rod 51. The screw rod 51 passes through the flange 11.

[0037] The medium inside the second water cooling box 44 is discharged into the pressure vessel 2 again through the nozzles 47 through the connecting pipe 45, so that the medium in the first water cooling box 41 and the second water cooling box 44 circulates, further improving the heat dissipation effect of the wiring chamber 1. At the same time, when the inside of the pressure vessel 2 needs to be cleaned, impurities are likely to accumulate at the bottom of the pressure vessel 2. By flushing the inside of the pressure vessel 2 from the inlet 3, then starting the water pump 42, the cleaning water is pumped into the first water cooling box 41 and the second water cooling box 44 again through the water pipes 43 connected to both ends of the water pump 42, and the bottom of the pressure vessel 2 is washed through the nozzles 47, and the impurities at the bottom are discharged from the outlet 31, achieving the effect of cleaning the bottom of the pressure vessel 2.

[0038] Then, when cleaning the bottom of the pressure vessel 2, since the position of the nozzle 47 is at one end of the pressure vessel 2, it is easy to cause a poor flushing effect at the other end. By fixing the screw rod 51 on one side of the water tank 46, the screw rod 51 can fix the water tank 46 to prevent the water tank 46 from moving inside the pressure vessel 2. At the same time, when cleaning the bottom of the pressure vessel 2, by rotating the handle 5, the screw rod 51 is moved into the pressure vessel 2, pushing the water tank 46 to move towards the other end of the pressure vessel 2. At the same time, the bellows 48 on the connecting pipe 45 connected to the water tank 46 can lengthen the connecting pipe 45, so that the bottom of the pressure vessel 2 can be flushed more comprehensively.

[0039] Two groups of support rods 6 are fixed between the flange 11 and the second water cooling box 44. The support rods 6 can fixedly connect the second water cooling box 44 and the flange 11 to improve stability.

[0040] A bracket 7 is fixed on the top of the flange 11, and a support sleeve 71 is fixed on the top of the bracket. The support sleeve 71 is sleeved on the water pipe 43.

[0041] By sleeving the support sleeve 71 on the water pipe 43, the bracket 7 can support the water pipe 43 to prevent the middle position of the water pipe 43 from breaking.

[0042] Working principle: First, the medium to be heated is introduced into the pressure vessel 2 through the inlet 3. Then, the water pump 42 is started. The water pump 42 pumps the medium to be heated into the first water cooling box 41 from the inlet 3 to cool down the surface of the wiring chamber 1. The medium in the first water cooling box 41 can flow into the second water cooling box 44 to cool down the side wall of the wiring chamber 1. At the same time, the second water cooling box 44 can cool down the part where the electric heating tube 12 contacts the wiring chamber 1, further improving the cooling effect. The connecting pipe 45 discharges the medium inside the second water cooling box 44 to the pressure vessel 2 again through the nozzle 47, making the medium in the first water cooling box 41 and the second water cooling box 44 circulate, further improving the heat dissipation effect of the wiring chamber 1. Then, impurities and attachments are likely to accumulate at the bottom of the pressure vessel 2. When it is necessary to clean the inside of the pressure vessel 2, the inside of the pressure vessel 2 is flushed from the inlet 3. Then, the water pump 42 is started, and the cleaning water is pumped into the first water cooling box 41 and the second water cooling box 44 again through the water pipes 43 connected to both ends of the water pump 42, and the bottom of the pressure vessel 2 is washed through the nozzle 47, and the impurities at the bottom are discharged from the outlet 31, achieving the effect of cleaning the bottom of the pressure vessel 2. Then, when cleaning the bottom of the pressure vessel 2, since the position of the nozzle 47 is at one end of the pressure vessel 2, the flushing effect on the other end is likely to be poor. By fixing the screw rod 51 on one side of the water tank 46, the screw rod 51 can fix the water tank 46 to prevent the water tank 46 from moving inside the pressure vessel 2. At the same time, when cleaning the bottom of the pressure vessel 2, by rotating the handle 5, the screw rod 51 is moved into the pressure vessel 2, pushing the water tank 46 to move towards the other end of the pressure vessel 2. At the same time, the corrugated pipe 48 on the connecting pipe 45 connected to the water tank 46 can lengthen the connecting pipe 45, enabling more comprehensive flushing of the bottom of the pressure vessel 2.

[0043] Enlightened by the above ideal embodiments according to the present invention, through the above description, relevant staff can completely make various changes and modifications without departing from the technical idea of this invention. The technical scope of this invention is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A marine explosion-proof electric heating system, characterized in that: include: A wiring chamber (1), wherein the end of the wiring chamber (1) is connected to a plurality of electric heating tubes (12), and the electric heating tubes (12) pass through the flange (11); A pressure vessel (2), the pressure vessel (2) having an inlet (3) and an outlet (31), the end of the pressure vessel (2) being mounted on the flange (11), and the electric heating pipe (12) being inserted into the pressure vessel (2); An explosion-proof portion (4), the explosion-proof portion (4) comprising a first water-cooling box (41) sleeved on the surface of the wiring chamber (1), a water pump (42) fixed on the top of the first water-cooling box (41), and a water pipe (43) connected to both ends of the water pump (42), the other end of the water pipe (43) being connected to the inlet (3); The water pump (42) pumps the liquid in the inlet (3) into the first water cooling box (41) to cool the wiring chamber (1); A second water-cooling box (44) is provided on one side of the wiring chamber (1), the second water-cooling box (44) is annular, the second water-cooling box (44) is communicated with the first water-cooling box (41), and the end of the electric heating tube (12) passes through the second water-cooling box (44) and is connected to the wiring chamber (1); a connecting pipe (45) is connected to one side of the second water-cooling box (44), one end of the connecting pipe (45) is connected to a water trough (46), and a plurality of nozzles (47) are provided on one side of the water trough (46); a bellows (48) is provided at the middle position of the connecting pipe (45), and the bellows (48) is located in the pressure vessel (2).

2. A marine explosion-proof electric heating system according to claim 1, characterized in that: The water tank (46) is semicircular, and the bottom of the water tank (46) is in contact with the inner bottom wall of the pressure container (2).

3. The marine explosion-proof electric heating system according to claim 1, characterized in that: A screw rod (51) is fixed to one side of the water tank (46), a handle (5) is provided at one end of the screw rod (51), and the screw rod (51) passes through the flange (11).

4. A marine explosion-proof electric heating system according to claim 3, characterized in that: Two groups of support rods (6) are fixed between the flange (11) and the second water cooling box (44).

5. The marine explosion-proof electric heating system according to claim 4, characterized in that: A bracket (7) is fixed to the top of the flange (11), a support sleeve (71) is fixed to the top of the bracket (7), and the support sleeve (71) is sleeved on the water pipe (43).

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