CN217283430U

CN217283430U - Marine heater

Info

Publication number: CN217283430U
Application number: CN202220322586.3U
Authority: CN
Inventors: 徐月红; 王维新
Original assignee: Tec Electric Co ltd
Current assignee: Tec Electric Co ltd
Priority date: 2022-02-17
Filing date: 2022-02-17
Publication date: 2022-08-23
Anticipated expiration: 2032-02-17

Abstract

The utility model discloses a marine heater, which comprises an outer shell, the opening part of shell is fixed with the blind flange, the beneficial effects of the utility model reside in that: 1. the heater adopts a stainless steel mineral insulated heating cable as a heating element, has uniform heating, small surface load and long service life, and solves the defects of carbon deposition, tube explosion, core breakage, short service life and the like existing in the traditional tubular electric heater for a long time; 2. the mineral insulated cable with the cold-end stainless steel sheath is introduced between the mineral insulated heating cable and the junction box in a cold-hot transition mode, the mineral insulated cable with the cold-end stainless steel sheath does not generate heat, but is high-temperature resistant and high in mechanical strength, the temperature of the power supply introducing end is guaranteed to be low, and the heating end is reliably connected; 3. the size of the heater is designed according to the size and the heating power of the cabin, the installation is convenient, and the heat transfer efficiency is high. The temperature measuring element is arranged, so that the heater is safer and more reliable, and the heater is split, so that the maintenance is convenient.

Description

Marine heater

The technical field is as follows:

the utility model relates to a liquid heating heat preservation field on the ship specifically is a marine heater.

Background art:

with the progress of industrial technology, the chemical industry is being developed in large-scale and high-efficiency directions, and the production mode is also being developed in continuous, streamlined, mechanized and automated production. The development and change of the production mode lead the specific weight of the liquid cargo transportation market to be heavier and heavier in the whole marine transportation market, and the old chemical transport ship is difficult to continue in both quantity and quality, thereby promoting another wave of high tide of the newly manufactured chemical transport ship. The main advantages of steam heating are rich resources, simple structure, no need of adding additional heating equipment, and clean and pollution-free steam through the steam treatment of the ship boiler. The steam system has the disadvantages of large volume, low heat efficiency, generally open-circuit circulation, high requirements on the material and the pressure resistance of the pipeline, easy leakage of steam and possible explosion of some goods. The main advantages of hot oil heating are high thermal efficiency, low requirement for pipeline equipment, difficult leakage, low freezing point and capability of working below the freezing point. The danger of freezing and cracking can not be generated in the pipeline, the pipeline is lubricated, and the heater and the pipeline are not easy to scale. The disadvantages are that new heating equipment needs to be added on a newly-built ship, and the price of hot oil is higher and the cost is more expensive than that of a steam heating system.

The utility model has the following contents:

the utility model aims at providing a marine heater in order to solve the existing problem.

The technical solution of the utility model is as follows:

the utility model provides a marine heater, includes the shell, the opening part of shell is fixed with the blind flange, the inner wall of blind flange is fixed with the skeleton, the outside winding of skeleton has heating element, passes through the shell with by heating medium and keeps apart, has strengthened the safety in utilization, the internally mounted of skeleton has temperature element, carries out temperature control well, safe and reliable, blind flange one side be provided with heating element electric connection's terminal box.

Preferably, the shell is in a circular tubular shape, one end of the shell is a dome shape, the other end of the shell is an opening, connecting flanges are oppositely fixed on the outer wall of one end of the opening, one of the connecting flanges is in threaded connection with a flange seat plate on the tank wall, the other connecting flange is in threaded connection with a flange cover, and the heater is in a split type and is convenient to overhaul.

Preferably, the framework is a heating core body, one end of the framework is fixed with the flange cover, the other end of the framework is suspended, and the temperature measuring element extends out of the framework.

Preferably, the heating element is made of a metal sheathed mineral insulated heating cable.

Preferably, the mineral insulated heating cable is connected with the junction box through a mineral insulated cable with a cold-end stainless steel sheath.

The beneficial effects of the utility model reside in that:

1. the heater adopts a stainless steel mineral insulated heating cable as a heating element, has uniform heating, small surface load and long service life, and solves the defects of carbon deposition, tube explosion, core breakage, short service life and the like existing in the traditional tubular electric heater for a long time;

2. adopt cold and hot transition's mode, introduce the mineral insulated cable of cold junction stainless steel sheath between mineral insulated heating cable and terminal box, the mineral insulated cable of cold junction stainless steel sheath itself does not generate heat, but high temperature resistant, and mechanical strength is high, has both guaranteed that power inlet temperature is lower, reliable connection the end that generates heat again.

3. The size of the heater is designed according to the size and the heating power of the cabin, the installation is convenient, and the heat transfer efficiency is high. The temperature measuring element is arranged, so that the heater is safer and more reliable, and the heater is split, so that the maintenance is convenient.

Description of the drawings:

fig. 1 is a perspective view of the present invention;

fig. 2 is a schematic partial cross-sectional view of the present invention;

in the drawings: 1. a housing; 2. a flange cover; 3. a framework; 4. a heating element; 5. a temperature measuring element; 6. a junction box; 7. a connecting flange; 8. a flange seat plate.

The specific implementation mode is as follows:

the technical solutions in the embodiments of the present invention will be described clearly and completely 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.

As shown in fig. 1-2, the marine heater comprises a housing 1, a flange cover 2 is fixed at an opening of the housing 1, a framework 3 is fixed on an inner wall of the flange cover 2, a heating element 4 is wound outside the framework 3 and is isolated from a heated medium by the housing 1, so that the use safety is enhanced, a temperature measuring element 5 is installed inside the framework 3, the temperature control is well performed, the marine heater is safe and reliable, and a junction box 6 electrically connected with the heating element 4 is arranged on one side of the flange cover 2.

Specifically, the shell 1 is in a circular tubular shape, one end of the shell is a dome shape, the other end of the shell is an opening, a connecting flange 7 is relatively fixed on the outer wall of one end of the opening, one connecting flange 7 is in threaded connection with a flange seat plate 8 on the wall of the tank, the other connecting flange 7 is in threaded connection with the flange cover 2, and the heater is in a split type and is convenient to overhaul.

Specifically, the framework 3 is a heating core body, one end of the framework is fixed with the flange cover 2, the other end of the framework is suspended, and the temperature measuring element 5 extends out of the framework 3.

Specifically, the heating element 4 is made of a metal-sheathed mineral-insulated heating cable, and the stainless-steel-sheathed mineral-insulated heating cable is a cable using a nickel-chromium alloy core, constantan or the like as a conductor, a high-purity magnesium oxide mineral material as an insulator, and stainless steel as a sheath. The high-temperature-resistant heat exchanger can meet the requirements of high-temperature conditions and high heating power, and has the characteristics of excellent mechanical strength, corrosion resistance, high temperature resistance, long service life, high heat exchange efficiency and the like.

Specifically, the mineral insulated cable with the cold-end stainless steel sheath is connected with the junction box 6, the mineral insulated cable with the cold-end stainless steel sheath is introduced between the mineral insulated heating cable and the junction box 6 in a cold-hot transition mode, the mineral insulated cable with the cold-end stainless steel sheath does not generate heat, but is high-temperature resistant and high in mechanical strength, the temperature of the power supply introducing end is guaranteed to be low, and the heating end is reliably connected.

When the heating tank is used, the heater is inserted into the tank for containing a medium to be heated, the connecting flange 7 is fixedly connected with the flange seat plate 8 on the wall of the tank in a threaded manner, the heating element 4 and the temperature measuring element 5 are connected with the junction box 6, and the junction box 6 is connected with a power supply, so that the medium to be heated in the tank can be heated and insulated.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. A marine heater, characterized by: the temperature measuring device comprises a shell, wherein a flange cover is fixed at an opening of the shell, a framework is fixed on the inner wall of the flange cover, a heating element is wound outside the framework, a temperature measuring element is installed inside the framework, and a junction box electrically connected with the heating element is arranged on one side of the flange cover.

2. The marine heater of claim 1, wherein: the shell is in a circular tubular shape, one end of the shell is a dome, the other end of the shell is an opening, connecting flanges are oppositely fixed on the outer wall of one end of the opening, one connecting flange is in threaded connection with a flange seat plate on the wall of the tank, and the other connecting flange is in threaded connection with a flange cover.

3. The marine heater of claim 1, wherein: the framework is a heating core body, one end of the framework is fixed with the flange cover, the other end of the framework is suspended, and the temperature measuring element extends out of the framework.

4. The marine heater of claim 1, wherein: the heating element is made of a metal sheathed mineral insulated heating cable.

5. The marine heater of claim 4, wherein: and the mineral insulated heating cable is connected with the junction box by adopting a mineral insulated cable with a cold-end stainless steel sheath.