Pure steam generator

Abstract

The utility model provides a pure steam generator which comprises an outer pipe, a plurality of inner pipes used for heat exchange are arranged in the outer pipe, the inner pipes are connected with industrial steam, the inner pipes are located at the bottom of the outer pipe, and the inner pipes are arranged close to the lower portion to reserve an upper portion evaporation boiling space. A purified water inlet and a clean water inlet are formed in the bottom of the outer pipe, a clean steam outlet is formed in the upper portion of the outer pipe, a flange cover is arranged on the side edge of the outer pipe, an industrial steam inlet is formed in the flange cover, and a condensate water outlet is formed in the lower end of the flange cover. The inner pipes of the steam generator are uniformly arranged downwards, and a corresponding boiling area and a corresponding steam area are reserved at the upper part of the inner pipes. Therefore, a large amount of steam can be effectively produced, and steam discharge is facilitated. More convenience is that the whole inner pipe is of a replaceable structure, and different heat exchange areas of the inner pipe can be selected according to different steam quantities. Maintenance and installation are very convenient, the manufacturing cost is greatly reduced, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of heat exchangers, in particular to a production and generation device for pure steam. Background Art

[0002] Pure steam generator is one of the important equipment currently used in sterilization cabinets, bioreactors (tank equipment), piping systems (online sterilization), filters, etc. It is designed and manufactured in strict accordance with the pressure vessel specifications. Pure steam generators can be used in process production lines in industries such as food, pharmaceuticals, and bio-genetic engineering. However, the steam generators in the prior art are composed of multiple groups of heat exchange tubes and other equipment. The evaporation efficiency is not high enough during operation, the raw water often cannot be effectively evaporated, and the steam output does not reach the expected amount.

[0003] If the required steam volume is to be achieved in conjunction with the production of subsequent equipment, the number of evaporators must be increased. This greatly increases manufacturing costs and reduces production efficiency. The problem is that increasing the number of evaporators may not necessarily achieve the expected steam volume.

[0004] Therefore, the manufacturing processes in the food industry are diverse. In order to meet different steam volume requirements, it is necessary to develop a steam production capacity that can reach a precise fixed value and can easily replace the inner tube of the evaporator to obtain different fixed steam volumes to meet the needs of various fields. Utility Model Content

[0005] The technical problem to be solved by the utility model is to overcome the problems existing in the prior art and provide a pure steam generator.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] A pure steam generator comprises an outer tube, a plurality of inner tubes for heat exchange are arranged inside the outer tube, the inner tubes are connected to industrial steam, the inner tubes are located at the bottom of the outer tube, and the inner tubes are arranged downward to leave an evaporation and boiling space at the top; a pure water inlet is arranged at the bottom of the outer tube, a clean water inlet is arranged at the bottom of the outer tube, a clean steam outlet is arranged at the top of the outer tube, a flange cover is arranged on the side of the outer tube, an industrial steam inlet is arranged on the flange cover, and a condensed water outlet is arranged at the lower end of the flange cover.

[0008] The outer tube is a horizontally placed long cylindrical tube body, the flange cover is located on one side of the tube body, and the other side of the tube body is an integrated closed structure; the flange cover is sealed and connected to the outer tube body through a flange plate, the inner space of the flange cover is connected to the inner tube, and the inner space of the flange cover and the interior of the outer tube body are isolated and closed from each other by the flange plate.

[0009] Two sealing gaskets are arranged at the joint between the flange cover and the outer tube body.

[0010] The inner tube is a detachable structure, an end plate is arranged at the tail of the inner tube, the end plate covers the outer tube body, the flange cover covers the end plate, a sealing gasket is arranged between the end plate and the outer tube body, and a sealing gasket is arranged between the flange cover and the end plate.

[0011] The inner tube is a reciprocatingly bent coil, the upper part of the inner tube is two supporting tubes, the lower part of the inner tube is concentrated with a plurality of heat exchange tubes, and the front end of the inner tube is a rotating head connecting the upper and lower inner tubes.

[0012] The cross-section of the inner heat exchange tube is 6 square meters, which is used for 500Kg / h of steam.

[0013] The cross-section of the inner heat exchange tube is 12 square meters, which is used for a steam volume of 1000Kg / h.

[0014] The cross-section of the inner heat exchange tube is 18 square meters, which is used for 1500Kg / h of steam.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] The inner tube of the steam generator described in the utility model is uniformly arranged downward, and the corresponding boiling area and steam area are reserved at the upper part. In this way, a large amount of steam can be effectively produced, and it is more conducive to the discharge of steam. What is more convenient is that the entire inner tube is a replaceable structure, and different inner tube heat exchange areas can be selected according to different steam quantities. Maintenance and installation are also very convenient, which greatly reduces the manufacturing cost and improves production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the exploded structure of the pure steam generator described in the utility model.

[0018] Figure 2 This is a schematic diagram of the internal piping structure of the pure steam generator described in the utility model.

[0019] Figure 3 The utility model is a schematic diagram of an inner tube cross section of the pure steam generator.

[0020] Figure 4 This is another schematic diagram of the inner tube cross section of the pure steam generator described in the utility model.

[0021] Figure 5 This is another schematic diagram of the inner tube cross section of the pure steam generator described in the utility model. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] The working principle of the steam generator is based on the principle of liquid heating. When water is heated to boiling, it changes from liquid to gas and releases a large amount of heat energy.

[0024] See also Figure 1 , a new type of pure steam generator. It is mainly composed of five parts. 1. Flange cover, 2. Gasket-a, 3. Gasket-b, 4. Inner tube, 5. Outer tube. The equipment is made of 316L stainless steel. The inner cavity of the outer tube and the working surface of the inner tube (the inner tube is also called the heat exchange tube) are pickled and passivated by standard procedures. The gaskets are all made of pharmaceutical grade polytetrafluoroethylene (Toflon) gaskets. The five components are installed on a solid carbon steel bracket and can be easily disassembled and assembled.

[0025] Sealing gasket a is used to seal industrial steam (the inner cavity of the flange cover is connected to the inner pipe to carry industrial steam, which is the medium) from the outside world.

[0026] Gasket b is used to seal pure water, clean steam (inner cavity of outer tube: hot water boiling area, steam area, that is, material) from the outside world. Figure 2 .

[0027] Figure 2 , is the inner tube layout diagram of the heat exchanger. According to the actual steam demand, select the appropriate inner tube layout diagram. The difference between this inner tube layout diagram and the previous layout diagram is that the inner tubes are evenly arranged downward, and the corresponding boiling area and steam area are left at the top. This can effectively produce a large amount of steam and is more conducive to steam discharge. What is more convenient is that the entire inner tube is replaceable, and different inner tube heat exchange areas can be selected according to different steam volumes. Maintenance and installation are also very convenient, which greatly reduces manufacturing costs and improves production efficiency.

[0028] This new pure steam generator is described. In the figure, there is a partition in the middle of the flange cover marked with number 1, which divides the flange cover cavity into two. Industrial steam (filtered) enters the cavity through the inlet 6 on one side of the flange cover, enters the inner tube connected to the cavity on one side, and goes back and forth. The condensed water flows out from the cavity outlet 7 on the other side of the flange cover. Pure water is transported from the water inlet 8 to the inner cavity of the outer tube through a feed pump to a predetermined water level. The liquid level is controlled by a sensor and heat exchanged with the inner tube (heat exchange tube). Industrial steam heats the water to enter the heat exchange process (hot water boiling zone). The raw water is heated to the evaporation temperature, and a strong thermal cycle is formed inside. Pure steam will be generated in the evaporator. The water is heated to saturated steam. Steam continues to accumulate in the cylinder (steam zone), forming high pressure, and is discharged through the safety valve. At the same time, the water continues to be heated and circulated to maintain the continuous steam production of the steam generator. Clean steam is continuously supplied to the application system through the steam outlet 9 to provide the required thermal energy. The external control device of the whole set of equipment, regulating valve, safety valve 10, pressure gauge 11, sensor, etc., will automatically adjust the temperature and steam flow to ensure the normal operation of the system, and prevent the steam generator from overheating, dry burning and other dangerous situations.

[0029] See also Figure 3 , the replacement is 6 square meters, for 500Kg / h of steam.

[0030] See also Figure 4 , the replacement is 12 square meters, for a steam volume of 1000Kg / h.

[0031] See also Figure 5 , the replacement is 18 square meters, for a steam volume of 1500Kg / h.

[0032] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0033] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A pure steam generator, characterized in that: It includes an outer tube, and multiple inner tubes for heat exchange are arranged inside the outer tube, the inner tube is connected to industrial steam, the inner tube is located at the bottom of the outer tube, and the inner tube is arranged downward to leave an evaporation and boiling space at the top; a pure water inlet is arranged at the bottom of the outer tube, a clean water inlet is arranged at the bottom of the outer tube, a clean steam outlet is arranged at the top of the outer tube, a flange cover is arranged on the side of the outer tube, an industrial steam inlet is arranged on the flange cover, and a condensed water outlet is arranged at the lower end of the flange cover.

2. A pure steam generator according to claim 1, characterized in that: The outer tube is a horizontally placed long cylindrical tube body, the flange cover is located on one side of the tube body, and the other side of the tube body is an integrated closed structure; the flange cover is sealed and connected to the outer tube body through a flange plate, the inner space of the flange cover is connected to the inner tube, and the inner space of the flange cover and the interior of the outer tube body are isolated and closed from each other by the flange plate.

3. A pure steam generator according to claim 2, characterized in that: Two sealing gaskets are arranged at the joint between the flange cover and the outer tube body.

4. A pure steam generator according to claim 1, characterized in that: The inner tube is a detachable structure, an end plate is arranged at the tail of the inner tube, the end plate covers the outer tube body, the flange cover covers the end plate, a sealing gasket is arranged between the end plate and the outer tube body, and a sealing gasket is arranged between the flange cover and the end plate.

5. A pure steam generator according to claim 4, characterized in that: The inner tube is a reciprocatingly bent coil, the upper part of the inner tube is two supporting tubes, the lower part of the inner tube is concentrated with a plurality of heat exchange tubes, and the front end of the inner tube is a rotating head connecting the upper and lower inner tubes.

6. A pure steam generator according to claim 1, characterized in that: The cross-section of the inner heat exchange tube is 6 square meters, which is used for 500Kg / h of steam.

7. A pure steam generator according to claim 1, characterized in that: The cross-section of the inner heat exchange tube is 12 square meters, which is used for a steam volume of 1000Kg / h.

8. A pure steam generator according to claim 1, characterized in that: The cross-section of the inner heat exchange tube is 18 square meters, which is used for 1500Kg / h of steam.

Images