Long-service-life efficient steam heating device

Abstract

A long-service-life efficient steam heating device comprises a vertically-arranged heating shell, an input cavity, a steam heating cavity and an output cavity are sequentially arranged in the heating shell from bottom to top, a plurality of heat exchange pipelines penetrating through the steam heating cavity are communicated between the input cavity and the output cavity, the input cavity is communicated with an input pipeline, and the output cavity is communicated with an output pipeline. The output cavity is communicated with an output pipeline, the steam heating cavity is communicated with a steam input pipeline and a condensate water output pipeline, the steam input pipeline is provided with a steam input control valve, and the condensate water output pipeline is provided with a condensate water output valve; the steam heating cavity is further communicated with a water supplementing pipeline, a water supplementing control valve is installed on the water supplementing pipeline, the top of the steam heating cavity is further communicated with an exhaust pipeline, and an exhaust control valve is installed on the exhaust pipeline. According to the device, internal air can be effectively exhausted, non-condensable gas on the steam heating side can also be effectively exhausted, and therefore the service life of the device is prolonged while efficient heating of the device is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to steam heating technical field especially a long life high -efficient steam heating device. BACKGROUND

[0002] At present, in the equipment generally using steam heating, medium after steam heating will condense into high temperature condensed water, and adopts the water trap to carry out steam water separation, but air and the like cannot be discharged, and after the equipment is closed, air will also be sucked in due to the generation of vacuum, since the heat conductivity coefficient of air is much lower than that of water, metal or graphite and the like heat conducting material, a layer of film will be formed on the heat transfer wall of the equipment, thereby hindering the heat transfer, so that the heat exchange efficiency of the steam heating equipment is reduced a lot, and the oxygen in the air corrodes the equipment in the humid environment, reduces the service life of the steam heating equipment. SUMMARY

[0003] The utility model provides a long life high -efficient steam heating device that can not only effectively discharge the air in the inside, but also effectively discharge the noncondensable gas of the steam heating side, thereby realizing the high -efficient heating of the device and improving the service life.

[0004] The utility model provides a long life high -efficient steam heating device that can not only effectively discharge the air in the inside, but also effectively discharge the noncondensable gas of the steam heating side, thereby realizing the high -efficient heating of the device and improving the service life.

[0005] The utility model provides a long life high -efficient steam heating device that can not only effectively discharge the air in the inside, but also effectively discharge the noncondensable gas of the steam heating side, thereby realizing the high -efficient heating of the device and improving the service life.

[0006] The utility model provides a long life high -efficient steam heating device that can not only effectively discharge the air in the inside, but also effectively discharge the noncondensable gas of the steam heating side, thereby realizing the high -efficient heating of the device and improving the service life.

[0007] The technical problems solved by the utility model also can be further realized through following technical scheme, for long life high efficiency steam heating device above-mentioned, still install several heat transfer fins on the heat exchange pipeline in the steam heating cavity.

[0008] The technical problems solved by the utility model also can be further realized through following technical scheme, for long life high efficiency steam heating device above-mentioned, still install several heat transfer fins on the heat exchange pipeline in the steam heating cavity.

[0009] The technical problems solved by the utility model also can be further realized through following technical scheme, for long life high efficiency steam heating device above-mentioned, still install several heat transfer fins on the heat exchange pipeline in the steam heating cavity.

[0010] The technical problems solved by the utility model also can be further realized through following technical scheme, for long life high efficiency steam heating device above-mentioned, still install several heat transfer fins on the heat exchange pipeline in the steam heating cavity.

[0011] Compared with the prior art, the utility model has the advantages of:

[0012] 1, efficient heat exchange design: the steam heating cavity and the heat exchange pipeline that runs through it built-in the device, realized the efficient heat exchange between hot steam and medium, not only promoted the efficiency of heat transfer, also ensured that the medium in the heat exchange pipeline can be evenly, rapidly heated, thereby comprehensively improved the overall work efficiency and heating performance;

[0013] 2, optimization water supply and exhaust mechanism: the device innovatively adopts water supply and exhaust method, effectively removes the air and other non-condensable gases in the heating device, which significantly improves the efficiency of the heating device, ensures that the hot steam can be more fully contacted with the heat exchange pipeline, further improves the heating effect;

[0014] 3, nitrogen supplementing corrosion prevention measures: in order to effectively prevent air from corroding the equipment, the device is specially provided with nitrogen supplementing measures, which not only prolongs the service life of the equipment, but also ensures the stable operation of the heating device, and provides a more reliable and efficient heating solution for users. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a structural schematic view of the utility model. DETAILED DESCRIPTION

[0016] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.

[0017] Referring to Figure 1 A long-life high-efficiency steam heating device, comprising a vertically arranged heating shell 6, an input cavity 11, a steam heating cavity 12 and an output cavity 13 are sequentially arranged from bottom to top in the heating shell 6, not only saving the floor area, but also helping the natural rising of heat and the uniform heating of medium; the heating shell 6 is used for supporting and protecting, and a heat preservation layer can be arranged outside the heating shell 6 for reducing heat loss;

[0018] A plurality of heat exchange pipelines 8 arranged through the steam heating cavity 12 are communicated between the input cavity 11 and the output cavity 13, which are used as main channels for heat exchange between hot steam and medium to be heated, ensuring efficient heat transfer, and preferably, a plurality of heat exchange fins are arranged on the heat exchange pipelines 8 in the steam heating cavity 12; an input pipeline 4 is communicated with the input cavity 11, and an output pipeline 5 is communicated with the output cavity 13, so that the medium enters the input cavity 11 through the input pipeline 4, then flows through the heat exchange pipelines 8, fully contacts with hot steam in the steam heating cavity 12 and is heated, and finally flows out through the output pipeline 5.

[0019] A steam input pipeline 2 and a condensed water output pipeline 3 are communicated with the steam heating cavity 12, which are used for injecting high-temperature steam, a steam input control valve is arranged on the steam input pipeline 2 for accurately adjusting the flow of steam, and a condensed water output valve is arranged on the condensed water output pipeline 3 for discharging condensed water generated in the heating process, and particularly, a steam blocking drain trap valve is arranged on the condensed water output pipeline 3, which can effectively prevent steam from passing through and ensure that only condensed water is discharged.

[0020] In order to remove air and other non-condensable gases in the steam heating cavity 12, avoid affecting the heating efficiency, or corrode the device, a water supplement pipeline 1 is further communicated with the steam heating cavity 12, a water supplement control valve is arranged on the water supplement pipeline 1, an exhaust pipeline 7 is further communicated with the top of the steam heating cavity 12, and an exhaust control valve is arranged on the exhaust pipeline 7, so as to input deoxygenated water into the steam heating cavity 12 through the water supplement pipeline 1 to squeeze out air and other non-condensable gases therein;

[0021] Preferably, the exhaust pipeline 7 is communicated with the highest position of the steam heating cavity 12, and further preferably, a guide plate 9 is arranged at the top of the steam heating cavity 12, the water supply pipeline 1 is communicated with the steam heating cavity 12 below the lower end of the guide plate 9, and the exhaust pipeline 7 is communicated with the steam heating cavity 12 at the position of the higher end of the guide plate 9, so as to facilitate better exhaust of air and other non-condensable gases.

[0022] In actual use, the nitrogen supply pipeline 10 is further communicated with the exhaust pipeline 7, and a nitrogen supply control valve is installed on the nitrogen supply pipeline 10, so as to facilitate injection of nitrogen into the steam heating cavity 12 after the device is not operated, to form a protective gas layer, thereby effectively prolonging the service life of the device and ensuring subsequent stable operation.

[0023] Preferably, the steam input control valve, the condensed water output valve, the water supply control valve and the exhaust control valve are electrically controlled valves, thereby improving the convenience and accuracy of operation.

[0024] The use process of the long-life high-efficiency steam heating device provided in the application is as follows:

[0025] In normal operation, the water supply control valve and the exhaust control valve are in a closed state, the heated material enters the input cavity 11 from the input pipeline 4, exchanges heat with the steam in the steam heating cavity 12 in the heat exchange pipeline 8, and then enters the output cavity 13 after being heated, and finally is output outward through the output pipeline 5, the steam enters the steam heating cavity 12 through the steam input pipeline 2, and the steam condensate is discharged through the condensed water output pipeline 3;

[0026] When the device is stopped, negative pressure is formed in the steam heating cavity 12 during the process of changing from hot to cold, and due to thermal expansion and cold contraction of the flange connection part, air enters the steam heating cavity 12 through the flange, thereby affecting the heating efficiency, so before starting operation, the steam input control valve and the condensed water output control valve are first closed, the water supply control valve is opened, and the exhaust control valve is opened, in the process of filling the steam heating cavity 12 with water, the gas in the steam heating cavity 12 is extruded outward through the exhaust pipeline 7, and after a large amount of water is discharged from the exhaust pipeline 7, it is indicated that there is no air and other non-condensable gases in the steam heating cavity 12.

[0027] After the air and other non-condensable gases in the steam heating cavity 12 are exhausted, the water supply control valve and the exhaust control valve are closed, the condensed water output control valve is opened, and the steam input control valve is slowly opened for slow warming.

Claims

1. A long-life, high-efficiency steam heating device, characterized in that: The device includes a vertically oriented heating shell. Inside the heating shell, from bottom to top, are an input chamber, a steam heating chamber, and an output chamber. Several heat exchange pipes running through the steam heating chamber connect the input and output chambers. An input pipe connects to the input chamber, an output pipe connects to the output chamber, and a steam input pipe and a condensate output pipe connect to the steam heating chamber. A steam input control valve is installed on the steam input pipe, and a condensate output valve is installed on the condensate output pipe. A water supply pipe is also connected to the steam heating chamber, and a water supply control valve is installed on the water supply pipe. An exhaust pipe is located at the top of the steam heating chamber, and an exhaust control valve is installed on the exhaust pipe.

2. The long-life, high-efficiency steam heating device according to claim 1, characterized in that: The exhaust pipe is connected to the highest point of the steam heating chamber.

3. The long-life, high-efficiency steam heating device according to claim 1 or 2, characterized in that: An inclined guide plate is also provided at the top of the steam heating chamber. The water supply pipe is connected to the steam heating chamber below the lower end of the guide plate, and the exhaust pipe is connected to the steam heating chamber at the higher end of the guide plate.

4. The long-life, high-efficiency steam heating device according to claim 1, characterized in that: Several heat exchange fins are also installed on the heat exchange pipes inside the steam heating chamber.

5. The long-life, high-efficiency steam heating device according to claim 1, characterized in that: A nitrogen supply line is also connected to the exhaust pipe, and a nitrogen supply control valve is installed on the nitrogen supply line.

6. The long-life, high-efficiency steam heating device according to claim 1, characterized in that: A condensate drain valve is also installed on the condensate outlet pipe for preventing steam from escaping and draining water.

7. The long-life, high-efficiency steam heating device according to claim 1 or 6, characterized in that: The steam input control valve, condensate output valve, water supply control valve, and exhaust control valve are all electrically controlled valves.

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