Steam heat exchanger

Abstract

The utility model provides a steam heat exchanger which comprises a heat exchange body, a medium inlet and outlet pipeline, an annular flange plate and a shell. The annular flange plate is fixedly connected to the end, located on the outer side of the shell, of the medium inlet and outlet pipeline, and a plurality of fixing holes are formed in the periphery of the annular flange plate and used for being in butt joint with an external pipeline flange. The shell comprises a cover body and a sealing ring. The cover body covers the outer side of the heat exchange main body, the cover body is fixedly connected with the heat exchange main body, a through hole and a mounting groove which are communicated are formed in the cover body, and the through hole is used for penetrating through a medium inlet and outlet pipeline. The sealing ring is arranged in the mounting groove and is in interference fit with the cover body, and the medium inlet and outlet pipeline penetrates through the sealing ring and abuts against the outer wall of the medium inlet and outlet pipeline.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of heat exchangers, in particular to a steam heat exchanger. BACKGROUND

[0002] The steam heat exchanger is a common device in industrial production, which realizes heat exchange between steam and medium through heat transfer to improve energy utilization efficiency. In the traditional steam heat exchanger, there is a gap between the cover body of the steam heat exchanger and the medium inlet and outlet pipeline in the heat exchange main body, which is usually sealed by filling glass glue in the gap. However, the glass glue is prone to aging and even falling off, which leads to a decrease or even failure of the sealing performance, affecting the operation efficiency and safety of the steam heat exchanger. CONTENT OF THE UTILITY MODEL

[0003] The purpose of the present disclosure is to overcome the deficiencies in the prior art and provide a steam heat exchanger with long service life and good sealing effect.

[0004] The purpose of the present disclosure is achieved by the following technical solutions:

[0005] A steam heat exchanger, comprising a heat exchange main body, a medium inlet and outlet pipeline, an annular flange and an outer shell; the annular flange is fixedly connected to the end of the medium inlet and outlet pipeline located outside the outer shell, and the periphery of the annular flange is provided with a plurality of fixing holes for butt joint with the flange of the external pipeline; the outer shell comprises:

[0006] a cover body, which is arranged outside the heat exchange main body and is fixedly connected with the heat exchange main body, and is provided with a through hole and a mounting groove in communication; the through hole is used for penetrating the medium inlet and outlet pipeline;

[0007] a sealing ring, which is arranged in the mounting groove and is connected with the cover body in interference fit, and the medium inlet and outlet pipeline penetrates the sealing ring and abuts against the outer wall of the medium inlet and outlet pipeline.

[0008] In one embodiment, the medium inlet and outlet pipeline comprises a medium outlet pipe and a medium inlet pipe, the through hole comprises an outlet through hole corresponding to the medium outlet pipe and an inlet through hole corresponding to the medium inlet pipe, and the outlet through hole and the inlet through hole are arranged diagonally.

[0009] In one embodiment, a limiting groove is formed on the outer peripheral wall of the medium inlet and outlet pipeline, the limiting groove is arranged correspondingly to the mounting groove, and the sealing ring is embedded in the limiting groove.

[0010] In one embodiment, the heat exchange shell is provided with a connecting portion, which is arranged along the periphery of the shell and is connected with the heat exchange main body.

[0011] In one embodiment, the connecting part has multiple connecting holes, and the cover and the heat exchange body are fastened together by connectors through the connecting holes.

[0012] In one embodiment, the connecting part and the cover are integrally formed.

[0013] In one embodiment, the cover is further provided with handles located on both sides of the cover.

[0014] In one embodiment, an insulation layer is provided on the outer side of the cover.

[0015] Compared with the prior art, this disclosure has at least the following advantages:

[0016] Steam heat exchangers extend the service life of the sealing structure by replacing the traditional glass glue sealing method with a sealing ring between the through hole and the medium inlet and outlet pipes.

[0017] The sealing ring is installed in the mounting groove on the inner wall of the through hole and fits against the cover body. The medium inlet and outlet pipes pass through the sealing ring and abut against each other, which can improve the sealing effect and thus improve the sealing performance of the cover body.

[0018] The mounting groove prevents the sealing ring from shifting during installation, thus improving the stability and reliability of the sealing structure. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this disclosure, the accompanying drawings used in the embodiments will be briefly described below. It should be understood that the following drawings only show some embodiments of this disclosure and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of a steam heat exchanger according to one embodiment;

[0021] Figure 2 This is a schematic diagram of the outer shell of a steam heat exchanger according to one embodiment;

[0022] Figure 3 for Figure 2 A cross-sectional view of the outer casing shown;

[0023] Figure 4 for Figure 3 A partial enlarged view of the sectional view shown;

[0024] Figure 5 for Figure 2 The diagram shows the structure of the outer shell from another perspective. Detailed Implementation

[0025] To facilitate understanding of this disclosure, a more complete description will be given below with reference to the accompanying drawings, which illustrate preferred embodiments of the present disclosure. However, this disclosure can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure.

[0026] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of this disclosure. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0028] To better understand the technical solutions and beneficial effects of this disclosure, the following detailed description is provided in conjunction with specific embodiments:

[0029] Please see Figures 1 to 5 This invention relates to a steam heat exchanger 10, comprising a heat exchange body 100, a medium inlet / outlet pipe 200, an annular flange 300, and a shell 400. The annular flange 300 is fixedly connected to the end of the medium inlet / outlet pipe 200 located outside the shell 400. Multiple fixing holes 301 are provided around the periphery of the annular flange 300 for mating with external pipe flanges. The shell 400 includes a cover 410 and a sealing ring 420. The cover 410 covers the outside of the heat exchange body 100 and is fixedly connected to it. The cover 410 has a through hole 411 and a mounting groove (not shown in the figure), through which the medium inlet / outlet pipe 200 passes. The sealing ring 420 is disposed within the mounting groove and is press-fitted to the cover 410. The medium inlet / outlet pipe 200 passes through the sealing ring 420 and abuts against the outer wall of the medium inlet / outlet pipe 200.

[0030] In the embodiment, the steam heat exchanger 10 prolongs the service life of the sealing structure by setting the sealing ring 420 between the through hole 411 and the medium inlet and outlet pipe 200 instead of the traditional glass glue sealing mode. At the same time, the sealing ring 420 is installed in the mounting groove on the inner wall of the through hole 411 and abuts against the cover body 410 in interference, and the medium inlet and outlet pipe 200 is arranged in the sealing ring 420 and abuts against each other, so that the sealing effect can be improved, thereby improving the sealing performance of the cover body 410. Further, the mounting groove can prevent displacement of the sealing ring 420 during installation, thereby improving the stability and reliability of the sealing structure.

[0031] As shown in Figures 1 to 4 one of the embodiments, the medium inlet and outlet pipe 200 includes a medium outlet pipe 210 and a medium inlet pipe 220, the through hole 411 includes an outlet through hole (not shown) corresponding to the medium outlet pipe 210 and an inlet through hole (not shown) corresponding to the medium inlet pipe 220, and the outlet through hole and the inlet through hole are arranged diagonally. It can be understood that the diagonal arrangement of the outlet through hole and the inlet through hole helps to optimize the medium flow path, reduce fluid resistance, and improve heat exchange efficiency. In addition, the diagonal arrangement can also effectively balance the pressure inside and outside the pipe, further strengthen the pressure resistance of the sealing structure, and ensure long-term stable operation of the equipment.

[0032] As shown in Figure 4 one of the embodiments, a limiting groove 201 is formed on the outer peripheral wall of the medium inlet and outlet pipe 200, the limiting groove 201 is arranged corresponding to the mounting groove, and the sealing ring 420 is embedded in the limiting groove 201. It can be understood that the limiting groove 201 further fixes the position of the sealing ring 420, prevents displacement of the sealing ring 420 due to vibration or temperature change in the subsequent use process, ensures the stability and sealing effect of the sealing ring 420, and thereby improves the reliability and service life of the steam heat exchanger 10. The double fixing mechanism of the limiting groove 201 and the mounting groove effectively improves the anti-deformation ability of the sealing ring 420.

[0033] It should be noted that in the embodiment, the medium inlet and outlet pipe 200 includes a medium outlet pipe 210 and a medium inlet pipe 220, and the medium outlet pipe 210 and the medium inlet pipe 220 are both provided with the limiting groove 201.

[0034] As shown in Figures 1 to 5 one of the embodiments, the shell 400 is provided with a connecting portion 430, and the connecting portion 430 is arranged along the circumference of the shell 400 and connected with the heat exchange main body 100.

[0035] As shown in Figures 1 to 5 one of the embodiments, the connecting portion 430 is provided with a plurality of connecting holes 4301, and the cover body 410 and the heat exchange main body 100 are fastened by a connecting piece 440 through the connecting holes 4301.

[0036] Understandably, the cover 410 is provided with a connecting part 430 having multiple connecting holes 4301 on the side facing the heat exchange body 100. The connector 440 passes through the connecting holes 4301 to fix the cover 410 to the heat exchange body 100, ensuring the stability of the connection between the cover 410 and the heat exchange body 100, preventing loosening due to vibration or temperature difference, and further improving the stability and sealing performance of the overall structure.

[0037] Furthermore, the connection hole 4301 is opened in the outwardly extending connection portion 430, avoiding the direct opening of the hole on the cover 410, reducing structural weak points, not damaging the integrity of the cover 410, and ensuring the sealing and durability between the cover 410 and the heat exchange body 100.

[0038] like Figures 1 to 5 As shown, in one embodiment, the connecting part 430 and the cover 410 are integrally formed. It can be understood that the integral forming of the connecting part 430 and the cover 410 improves the overall strength of the cover 410 structure, reduces welding points and welding workload, simplifies the manufacturing process, avoids manufacturing defects, and enhances the sealing performance and durability of the cover 410.

[0039] like Figures 1 to 5 As shown, in one embodiment, the cover 410 is also provided with handles 450, which are located on both sides of the cover 410. Specifically, in this embodiment, the handles 450 are located on both sides in the equipment installation direction. During loading and unloading, the handles 450 provide a gripping position, making it easier to apply force and reducing the labor intensity during transportation and loading / unloading.

[0040] like Figure 3 As shown, in one embodiment, an insulation layer 500 is provided on the outer side of the cover 410. The design of the insulation layer 500 not only improves thermal efficiency but also enhances the safety of the equipment. Specifically, in this embodiment, the insulation layer 500 is insulation cotton. The insulation cotton can reduce the heat exchange between the medium inlet / outlet pipe 200 of the steam heat exchanger 10 and the internal environment of the cover 410, thereby reducing the temperature of the cover surface, reducing deformation and damage caused by thermal stress, and thus extending the service life of the equipment.

[0041] Compared with the prior art, this disclosure has at least the following advantages:

[0042] Steam heat exchangers extend the service life of the sealing structure by replacing the traditional glass glue sealing method with a sealing ring between the through hole and the medium inlet and outlet pipes.

[0043] The sealing ring is installed in the mounting groove on the inner wall of the through hole and fits against the cover body. The medium inlet and outlet pipes pass through the sealing ring and abut against each other, which can improve the sealing effect and thus improve the sealing performance of the cover body.

[0044] The mounting groove can prevent displacement of the sealing ring during mounting, improving stability and reliability of the sealing structure.

[0045] The above embodiments only express several embodiments of the present disclosure, and the description is more specific and detailed, but it cannot be understood as a limitation on the scope of the disclosed patent. It should be noted that for ordinary skilled persons in the art, without departing from the concept of the present disclosure, several modifications and improvements can be made, which are within the scope of the present disclosure. Therefore, the protection scope of the present disclosure patent should be subject to the appended claims.

Claims

1. A steam heat exchanger, characterized by, The steam heat exchanger comprises a heat exchange main body, a medium inlet and outlet pipeline, an annular flange and a shell; the annular flange is fixedly connected to the end of the medium inlet and outlet pipeline located outside the shell, the periphery of the annular flange is provided with a plurality of fixing holes for butt joint with the flange of an external pipeline; the shell comprises: a cover body, which is arranged outside the heat exchange main body and is fixedly connected to the heat exchange main body, the cover body is provided with a through hole and a mounting groove in communication, the through hole is used for penetrating the medium inlet and outlet pipeline; a sealing ring, which is arranged in the mounting groove and is in interference connection with the cover body, the medium inlet and outlet pipeline penetrates the sealing ring and abuts against the outer wall of the medium inlet and outlet pipeline.

2. The steam heat exchanger of claim 1, wherein, The medium inlet and outlet pipeline comprises a medium outlet pipe and a medium inlet pipe, the through hole comprises an outlet through hole corresponding to the medium outlet pipe and an inlet through hole corresponding to the medium inlet pipe, and the outlet through hole and the inlet through hole are arranged in diagonal lines.

3. The steam heat exchanger of claim 1, wherein, A limiting groove is arranged on the outer peripheral wall of the medium inlet and outlet pipeline, the limiting groove is correspondingly arranged with the mounting groove, and the sealing ring is embedded in the limiting groove.

4. The steam heat exchanger of claim 1, wherein, The shell is provided with a connecting portion, which is arranged along the periphery of the shell and is connected to the heat exchange main body.

5. The steam heat exchanger of claim 4, wherein, The connecting portion is provided with a plurality of connecting holes, the cover body and the heat exchange main body are fastened by a connecting piece through the connecting holes.

6. The steam heat exchanger of claim 4, wherein, The connecting portion and the cover body are in an integral molding structure.

7. The steam heat exchanger of claim 1, wherein, The cover body is further provided with a handle, which is located on both sides of the cover body.

8. The steam heat exchanger of claim 1, wherein, An insulating layer is arranged outside the cover body.

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