Steam waste heat recovery device

Abstract

The utility model discloses a steam waste heat recovery device, which belongs to the technical field of steam waste heat recovery equipment, and comprises a recovery box and a steam cylinder, a plurality of transverse pipes are transversely arranged at the lower end in the recovery box, the side wall of the recovery box is fixedly connected with a liquid inlet pipe and is communicated with the transverse pipes, the top surfaces of the transverse pipes are fixedly connected with vertical pipes, and the vertical pipes are communicated with the steam cylinder. A plurality of heat exchange pipes used for steam waste heat recovery are transversely arranged in the recovery box, steam cylinders are arranged in the two heat exchange pipes correspondingly, the multiple heat exchange pipes communicate with each other through hollow arc-shaped plates, and the multiple heat exchange pipes are transversely and fixedly installed on the inner wall of the recovery box through two sets of fixing rods. The top face of the recycling box is fixedly connected with a liquid outlet pipe, and the liquid outlet pipe communicates with the heat exchange pipe. Compared with the prior art, the device can fully recycle the temperature in redundant steam and can also recycle the temperature in liquid after steam condensation, so that energy waste is greatly avoided.

Description

TECHNICAL FIELD

[0001] The utility model belongs to steam waste heat recovery equipment technical field especially steam waste heat recovery device. BACKGROUND

[0002] A large amount of high-temperature gas is generated in the chemical industry, if it is directly discharged into the atmosphere, it will cause waste of heat energy, so that the waste heat of steam can be recycled and utilized through the waste heat recovery equipment.

[0003] The existing steam waste heat is mostly recycled by passing the required heated liquid into the heat exchange pipe, then the excess steam is directly contacted with the heat exchange pipe, so that the liquid in the heat exchange pipe is heated by the steam, but there is also a certain amount of heat in the condensed liquid after the steam is condensed after being contacted with the heat exchange pipe, and the existing steam waste heat recovery equipment cannot fully utilize these heat, so it is impossible to fully recover the heat in the steam, which greatly causes energy waste, therefore, a steam waste heat recovery device is urgently needed to solve this problem. SUMMARY

[0004] The utility model discloses a steam waste heat recovery device to solve the problem in the background art.

[0005] To achieve the above object, the utility model provides the following technical scheme: a steam waste heat recovery device, including the recovery tank for steam waste heat recovery, the inside lower end of recovery tank is transversely installed with a plurality of cross pipes, a plurality of cross pipes are connected with each other longitudinally through the connecting pipe, the lateral wall of recovery tank is fixedly connected with liquid inlet pipe and is communicated with cross pipe;

[0006] The top surface of the cross pipe is fixedly connected with a vertical pipe, a plurality of heat exchange pipes for steam waste heat recovery are transversely arranged in the inside of the recovery tank, and the plurality of heat exchange pipes are communicated through a hollow arc-shaped plate, the plurality of heat exchange pipes are transversely fixedly installed on the inner wall of the recovery tank through two groups of fixed rods, the top surface of the recovery tank is fixedly connected with a liquid outlet pipe, and the liquid outlet pipe is communicated with the heat exchange pipes;

[0007] Two steam cylinders are transversely installed in the inside of the recovery tank, and the two steam cylinders are arranged in the inside of the two heat exchange pipes, a plurality of exhaust holes are evenly arranged on the lateral wall of the steam cylinder, a steam pipe is fixedly connected to one side of the two steam cylinders, and the steam pipe extends to the outside of the recovery tank.

[0008] Preferably, the top surface of the recovery tank is fixedly connected with a pressure relief valve.

[0009] Preferably, the inside upper end of the recovery tank is fixedly connected with an arc-shaped plate, and a plurality of arc-shaped grooves are arranged on the inner wall of the arc-shaped plate.

[0010] Preferably, the inner wall of the recycling box is longitudinally provided with a plurality of guide grooves, and the plurality of guide grooves are communicated with the arc-shaped grooves in the inner wall of the arc-shaped plate.

[0011] Preferably, the side wall of the recycling box is provided with an observation window, and the inside of the observation window is fixedly connected with a transparent acrylic plate.

[0012] Preferably, the cross section of the plurality of heat exchange pipes is circular, and the number of hollow arc-shaped plates communicated between the heat exchange pipes is at least two.

[0013] Compared with the prior art, the technical effects and advantages of the utility model are:

[0014] The steam waste heat recovery device, thanks to the connection between the plurality of heat exchange pipes through the plurality of hollow arc-shaped plates, can effectively increase the contact area of steam and heat exchange pipes, thereby improving the heat exchange effect.

[0015] The steam waste heat recovery device, the upper end of the vertical pipe communicated with the top surface of the horizontal pipe is communicated with the lower part of the heat exchange pipe, so that the liquid enters from the lower part of the heat exchange pipe and moves upward, and the liquid outlet pipe on the heat exchange pipe is located above the heat exchange pipe, so that the liquid can flow uniformly in the heat exchange pipe.

[0016] The steam waste heat recovery device, thanks to the installation of the plurality of horizontal pipes on the inner lower end of the recycling box, the liquid with certain temperature after condensation can preliminarily heat the liquid in the horizontal pipe, thereby fully utilizing the temperature of the liquid after condensation.

[0017] Compared with the prior art, the device can fully recover and utilize the temperature in the excess steam, and can also recover the temperature in the liquid after steam condensation, thereby greatly avoiding energy waste. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the specific embodiments of the utility model or the technical solutions in the prior art, the following will briefly introduce the drawings needed to be used in the specific embodiments or the prior art description, and obviously, the drawings in the following description are some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0019] Figure 1 It is a structural schematic view of the utility model;

[0020] Figure 2 It is a three-dimensional sectional view of the recycling box in the utility model;

[0021] Figure 3 It is a structural schematic view of the heat exchange pipe, hollow arc-shaped plate and steam cylinder in the utility model.

[0022] Description of reference numerals:

[0023] In the figure: 1. Recovery box; 2. Horizontal pipe; 3. Liquid inlet pipe; 4. Vertical pipe; 5. Heat exchange tube; 6. Hollow curved plate; 7. Steam pipe; 8. Steam cylinder; 9. Exhaust hole; 10. Fixed rod; 11. Liquid outlet pipe; 12. Drain pipe; 13. Pressure relief valve; 14. Curved plate; 15. Guide groove; 16. Transparent acrylic plate. DETAILED DESCRIPTION

[0024] In the following description, numerous specific details are provided to provide a more thorough understanding of the present invention. However, it will be apparent to those skilled in the art that the present invention can be practiced without one or more of these details. In other instances, certain technical features known in the art are not described to avoid confusion with the present invention.

[0025] Unless otherwise defined, the directions of up, down, left, right, front, back, inside and outside involved in this document are based on the directions of up, down, left, right, front, back, inside and outside shown in the figures of the present invention, and are explained here together.

[0026] The connection method can be bonding, welding, bolt connection, etc., which shall be based on actual needs.

[0027] like Figures 1 to 3 The main structure of a steam waste heat recovery device shown is a recovery box 1 for steam waste heat recovery. A plurality of transverse tubes 2 are horizontally installed at the lower end of the interior of the recovery box 1. The plurality of transverse tubes 2 are longitudinally connected to each other by connecting tubes. A liquid inlet pipe 3 is fixedly connected to the side wall of the recovery box 1 and communicates with the transverse tube 2. A liquid discharge pipe 12 is connected to the lower side of the recovery box 1. Thanks to the fact that the plurality of transverse tubes 2 are installed in close contact with the lower end of the interior of the recovery box 1, the liquid in the transverse tube 2 can be preliminarily heated by condensing the liquid that still has a certain temperature, thereby fully utilizing the temperature of the condensed liquid.

[0028] The top surface of the horizontal tube 2 is fixedly connected to a vertical tube 4. A plurality of heat exchange tubes 5 for recovering waste heat from steam are arranged transversely inside the recovery box 1. The plurality of heat exchange tubes 5 are connected by hollow curved plates 6. Thanks to the plurality of heat exchange tubes 5 being connected by the plurality of hollow curved plates 6, the contact area between the steam and the heat exchange tubes 5 can be effectively increased, thereby improving the heat exchange effect.

[0029] The plurality of heat exchange tubes 5 are transversely fixed to the inner wall of the recovery box 1 by two sets of fixing rods 10, so that the heat exchange tubes 5 are located above the interior of the recovery box 1. At this time, because steam accumulates above the interior of the recovery box 1, the contact time between the steam and the plurality of heat exchange tubes 5 can be extended, thereby improving the heat exchange effect;

[0030] The top surface of the recycling box 1 is fixedly connected with a liquid outlet pipe 11, and the liquid outlet pipe 11 is communicated with the heat exchange pipe 5. The upper end of the vertical pipe 4 communicated with the top surface of the horizontal pipe 2 is communicated with the lower part of the heat exchange pipe 5, so that the liquid enters from the lower part of the heat exchange pipe 5 and moves upward. The liquid outlet pipe 11 on the heat exchange pipe 5 is located above the heat exchange pipe 5, so that the liquid can uniformly flow in the heat exchange pipe 5.

[0031] Two steam cylinders 8 are horizontally installed in the recycling box 1, and the two steam cylinders 8 are arranged in the heat exchange pipes 5 respectively. A plurality of exhaust holes 9 are uniformly arranged on the side wall of the steam cylinder 8. One side of the two steam cylinders 8 is fixedly connected with a steam pipe 7, and the steam pipe 7 extends to the outside of the recycling box 1. The steam is introduced into the steam cylinder 8 through the steam pipe 7, and is uniformly diffused through the plurality of exhaust holes 9 arranged on the side wall of the steam cylinder 8. At this time, the steam will preferentially contact the heat exchange pipe 5 and the plurality of hollow arc-shaped plates 6, so as to realize heat exchange between the steam and the liquid in the heat exchange pipe 5.

[0032] A pressure relief valve 13 is fixedly connected to the top surface of the recycling box 1. The pressure relief pressure of the pressure relief valve 13 is adjusted according to actual needs. Due to the arrangement of the pressure relief valve 13, the residence time of the steam in the recycling box 1 can be effectively increased, so as to increase the contact time between the steam and the heat exchange pipe 5, thereby improving the heat exchange effect.

[0033] An arc-shaped plate 14 is fixedly connected to the upper end of the recycling box 1. A plurality of arc-shaped grooves are arranged on the inner wall of the arc-shaped plate 14. A plurality of guide grooves 15 are longitudinally arranged on the inner wall of the recycling box 1. The plurality of guide grooves 15 are communicated with the arc-shaped grooves on the inner wall of the arc-shaped plate 14. Due to the arrangement of the arc-shaped plate 14 and the guide grooves 15, the liquid condensed on the inner wall of the arc-shaped plate 14 and the inner wall of the recycling box 1 can be first guided to the lower end of the recycling box 1, so that the liquid with temperature contacts the horizontal pipe 2.

[0034] An observation window is arranged on the side wall of the recycling box 1. A transparent acrylic plate 16 is fixedly connected in the observation window. Due to the arrangement of the observation window, the heat exchange condition in the recycling box 1 can be effectively observed in time.

[0035] The plurality of heat exchange pipes 5 are circularly arranged, and the hollow arc-shaped plates 6 communicated between the heat exchange pipes 5 are arranged in plurality, so as to effectively increase the contact area between the steam and the liquid to be heat exchanged, thereby improving the heat exchange effect.

[0036] Working principle

[0037] When the steam waste heat recovery device is in use, the liquid to be heated is first passed through the liquid inlet pipe 3 into the interior of multiple horizontal tubes 2 and the liquid is distributed to the interior of each horizontal tube 2 through the connecting pipes connecting the horizontal tubes 2. Then, the liquid in the horizontal tube 2 is passed into the interior of the heat exchange tube 5 through the vertical pipe 4. Then, the liquid is filled into the interior of each heat exchange tube 5 through the hollow curved plate 6 connected between the multiple heat exchange tubes 5. At the same time, the steam is passed into the interior of the steam cylinder 8 through the steam pipe 7, and the steam is evenly diffused through the multiple exhaust holes 9 opened on the side wall of the steam cylinder 8. At this time, the steam will preferentially contact the heat exchange tube 5 and the multiple hollow curved plates 6, so as to realize heat exchange between the steam and the liquid inside the heat exchange tube 5. Then, the condensed liquid on the side walls of the heat exchange tube 5 and the side walls of the hollow curved plate 6 will flow to the lower end of the interior of the recovery box 1. At this time, the condensed liquid still has a certain temperature, so the condensed liquid contacts the horizontal tube 2 and performs preliminary heat exchange with the liquid inside the horizontal tube 2.

[0038] It should be noted that, in this article, relational terms such as one and two are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions. The sentence "including an element defined by ... does not exclude the presence of other identical elements in the process, method, article or device that includes the element."

[0039] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A steam waste heat recovery device, comprising a steam waste heat recovery box (1), characterized in that: A plurality of transverse tubes (2) are transversely mounted on the lower end of the interior of the recovery box (1), and the plurality of transverse tubes (2) are longitudinally connected to each other via connecting tubes. A liquid inlet pipe (3) is fixedly connected to the side wall of the recovery box (1) and communicates with the transverse tube (2); The top surface of the horizontal tube (2) is fixedly connected to a vertical tube (4); a plurality of heat exchange tubes (5) for recovering waste heat from steam are transversely arranged inside the recovery box (1); the plurality of heat exchange tubes (5) are connected via a hollow arc plate (6); the plurality of heat exchange tubes (5) are transversely fixedly mounted on the inner wall of the recovery box (1) via two groups of fixing rods (10); a liquid outlet pipe (11) is fixedly connected to the top surface of the recovery box (1), and the liquid outlet pipe (11) is connected to the heat exchange tube (5); Two steam cylinders (8) are installed transversely inside the recovery box (1), and the two steam cylinders (8) are respectively arranged inside the two heat exchange tubes (5). The side walls of the steam cylinders (8) are evenly distributed with multiple exhaust holes (9). One side of the two steam cylinders (8) is fixedly connected with a steam pipe (7), and the steam pipe (7) extends to the outside of the recovery box (1).

2. The steam waste heat recovery device according to claim 1, characterized in that: A pressure relief valve (13) is fixedly connected to the top surface of the recovery box (1).

3. The steam waste heat recovery device according to claim 1, characterized in that: An arc-shaped plate (14) is fixedly connected to the upper inner end of the recovery box (1), and a plurality of arc-shaped grooves are formed on the inner wall of the arc-shaped plate (14).

4. The steam waste heat recovery device according to claim 3, characterized in that: The inner wall of the recovery box (1) is longitudinally provided with a plurality of guide grooves (15), and the plurality of guide grooves (15) are connected to the arc-shaped grooves on the inner wall of the arc-shaped plate (14).

5. The steam waste heat recovery device according to claim 1, characterized in that: An observation window is provided on the side wall of the recycling box (1), and a transparent acrylic plate (16) is fixedly connected to the interior of the observation window.

6. The steam waste heat recovery device according to claim 1, characterized in that: The cross-sections of the plurality of heat exchange tubes (5) are arranged to be circular, and the number of the hollow arc-shaped plates (6) communicating between the heat exchange tubes (5) is arranged to be at least two.

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