Steam cooling energy-consuming device and parameter design method thereof

Abstract

This invention discloses a steam cooling energy-consuming device and its parameter design method, relating to the technical field of heat exchanger design for marine power systems. On one hand, the device includes a shell, a tube sheet assembly, a baffle plate, and a heat exchange tube assembly. The tube sheet assembly includes two spaced-apart tube sheets, both located within the shell and connected to the inner wall of the shell, dividing the shell into a heat exchange chamber and a water supply chamber. The baffle plate divides the water supply chamber into an inlet chamber and an outlet chamber. The heat exchange tube assembly includes at least two U-shaped heat exchange tubes, both ends of which are fixed to the tube sheet assembly, with one end communicating with the inlet chamber and the other end communicating with the outlet chamber. On the other hand, this invention also provides a parameter design method for the steam cooling energy-consuming device. By designing the required tube sheet spacing, the number, diameter, and spacing of the U-shaped heat exchange tubes, the strength of the U-shaped heat exchange tubes is ensured without affecting the sealing performance of the connection between the U-shaped heat exchange tubes and the tube sheet, thus solving problems such as heat exchange tube expansion leading to detachment from the heat exchange tubes.

Description

Technical Field

[0001] This invention relates to the field of heat exchanger design technology for marine power systems, specifically to a steam cooling energy-consuming device and its parameter design method. Background Technology

[0002] Steam-water heat exchangers are widely used in marine propulsion systems, where steam condenses and transfers heat to cooling water. In existing technologies, heat exchangers mainly consist of a shell, tube bundle, tube sheet, baffles, and end caps. The main advantages of tube sheet heat exchangers are their simple and compact structure, ability to withstand high pressures, low cost, ease of tube cleaning, and easy replacement of damaged tubes. However, inside steam-water heat exchangers, the density of the medium changes significantly during the phase change process of steam condensing into water. This typically results in a large pressure differential inside the heat exchanger, and the condensation process is often accompanied by intense air noise and fluid-structure interaction vibrations.

[0003] To minimize the severe air noise and fluid-structure interaction vibration caused by steam discharge to the high-vacuum condenser, a high-pressure constant-pressure condensation method is adopted in the steam cooling system. However, this constant-pressure condensation method inevitably results in a large temperature gradient inside the condenser, which causes significant thermal deformation and thermal stress in the heat exchange tubes. This leads to a large difference in axial thermal deformation between the shell and the heat exchange tubes of the shell-and-tube heat exchanger, which can easily cause the heat exchange tubes and tube sheet to pull apart. Summary of the Invention

[0004] To address the shortcomings of existing technologies, the present invention aims to provide a steam cooling energy-consuming device and its parameter design method. By setting two tube sheets at intervals and reasonably setting the tube sheet spacing, the problem of inconsistent expansion deformation of heat exchange tubes leading to pull-out from heat exchange tubes and deformation and bending of the tube sheets themselves can be solved.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0006] On the one hand, a steam cooling energy-consuming device is provided, comprising:

[0007] case;

[0008] A tube sheet assembly comprising two spaced tube sheets, both of which are disposed within the housing and connected to the inner wall of the housing to divide the housing into a heat exchange chamber and a water supply chamber.

[0009] A partition divides the water supply chamber into an inlet chamber and an outlet chamber.

[0010] A heat exchange tube assembly includes at least two U-shaped heat exchange tubes, both ends of which are fixed to the tube sheet assembly, with one end connected to the inlet chamber and the other end connected to the outlet chamber.

[0011] In some optional embodiments, the inlet for the heating fluid and the outlet for the cooling fluid are both connected to the heat exchange chamber of the shell, and the inlet for the condensate and the outlet for the condensate are respectively connected to the inlet chamber and the outlet chamber.

[0012] In some alternative embodiments, the outer wall of the housing is provided with a level gauge that communicates with the heat exchange chamber.

[0013] On the other hand, a parameter design method for a steam cooling energy-consuming device is also provided, for designing the aforementioned steam cooling energy-consuming device, comprising the following steps:

[0014] Based on the total heat exchange capacity of the device, the heat exchange capacity of the heat exchange tube assembly is distributed to determine the heat exchange capacity of the heat exchange tube assembly.

[0015] Based on the heat exchange capacity of the heat exchanger assembly described above, calculate the total heat exchange area of ​​all U-shaped heat exchanger tubes;

[0016] Based on the total heat exchange area of ​​all U-shaped heat exchange tubes, determine the preset diameter of each of the above-mentioned U-shaped heat exchange tubes and the preset gap between adjacent U-shaped heat exchange tubes.

[0017] The spacing between the two tube sheets is obtained based on the preset diameter of the U-shaped heat exchange tube and the preset gap between adjacent U-shaped heat exchange tubes.

[0018] The stress of the U-shaped heat exchange tubes is checked based on the spacing of the tube sheets. If the stress conditions of the U-shaped heat exchange tubes are not met, the number of U-shaped heat exchange tubes and the gap between adjacent U-shaped heat exchange tubes are adjusted, the preset diameter and preset gap are readjusted, the spacing between the two tube sheets is recalculated, and the stress is checked again until the stress conditions are met.

[0019] In some optional embodiments, the distance between the two tube sheets is calculated based on the diameter of the U-shaped heat exchange tube and the radial expansion difference between the two tube sheets, including:

[0020] According to the formula Determine the spacing between the two tube sheets, where g is the spacing between the two tube sheets, d0 is the outer diameter of the U-shaped heat exchange tube, Δr is the radial expansion difference between the two tube sheets, and E T Y is the elastic modulus of the U-shaped heat exchanger tube at the average temperature. T It represents the yield strength of the heat exchanger tube material at the maximum metal temperature.

[0021] In some alternative embodiments, according to the formula Determine the radial expansion difference between the two tube sheets described above, wherein the tube sheet closer to the end of the U-shaped heat exchanger tube is the outer tube sheet, and the tube sheet farther from the end of the U-shaped heat exchanger tube is the inner tube sheet, D. TLα1 is the distance from the outer U-shaped heat exchange tube to the center point of the shell, α2 is the coefficient of thermal expansion at the average metal temperature of the inner tube sheet, ΔT2 is the temperature difference between the average metal temperature of the inner tube sheet and the ambient temperature, α1 is the coefficient of thermal expansion at the average metal temperature of the outer tube sheet, and ΔT1 is the temperature difference between the average metal temperature of the outer tube sheet and the ambient temperature.

[0022] In some alternative embodiments, the thickness of the tube sheet is calculated based on the equivalent diameter of all the above-described U-shaped heat exchange tubes and the diameter of the above-described U-shaped heat exchange tubes.

[0023] In some alternative embodiments, according to the formula Determine the thickness of the tube sheet mentioned above, where D L Let S be the equivalent diameter of all the aforementioned U-shaped heat exchange tubes, S be the center-to-center distance of the aforementioned U-shaped heat exchange tubes, P be the design pressure of the aforementioned U-shaped heat exchange tubes, η be the arrangement factor of the aforementioned U-shaped heat exchange tubes, and [σ] be the equivalent diameter of all the aforementioned U-shaped heat exchange tubes. t The allowable stress of the material for the aforementioned U-shaped heat exchanger tube is given.

[0024] In some alternative embodiments, according to the formula Determine the arrangement coefficient of the above U-shaped heat exchanger tubes.

[0025] In some alternative embodiments, the opening diameters of the inlet and outlet are calculated based on the design pressure difference of the condensate from the inlet to the outlet.

[0026] Compared with the prior art, the advantages of the present invention are as follows: by using two tube sheets spaced apart and connecting the two tube sheets to all U-shaped heat exchange tubes, the constraint force on the U-shaped heat exchange tubes is increased, effectively controlling the deformation of the U-shaped heat exchange tubes caused by rapid temperature changes in the heat exchange chamber, and reducing the risk of pull-out from the tube sheets; at the same time, in order to eliminate the influence of temperature factors, based on the heat exchange area of ​​the U-shaped heat exchange tubes, the distance between the two tube sheets is calculated by presetting the diameter of the U-shaped heat exchange tubes and the gap between two adjacent U-shaped heat exchange tubes, and then the stress of the U-shaped heat exchange tubes is checked according to the above tube sheet distance until the stress conditions are met, so as to obtain the tube sheet distance, number, diameter and spacing of the U-shaped heat exchange tubes required by the design, which ensures the strength of the U-shaped heat exchange tubes without affecting the connection and sealing of the U-shaped heat exchange tubes and the tube sheets. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1This is a schematic diagram of the structure of a steam cooling energy-consuming device according to the present invention.

[0029] In the figure: 1. Shell; 11. Inlet; 12. Outlet; 13. Water inlet; 14. Water outlet; 15. Level gauge; 16. Anti-impact plate; 21. Tube sheet; 211. Outer tube sheet; 212. Inner tube sheet; 3. Baffle; 4. Heat exchange tube assembly; 41. U-shaped heat exchange tube. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0031] The embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

[0032] On the one hand, such as Figure 1 As shown, this application provides a steam cooling energy-consuming device, including a shell 1, a tube sheet assembly, a partition 3, and a heat exchange tube assembly 4; the tube sheet assembly includes two spaced tube sheets 21, both of which are disposed inside the shell 1 and connected to the inner wall of the shell 1 to divide the shell 1 into a heat exchange chamber and a water supply chamber; the partition 3 divides the water supply chamber into an inlet chamber and an outlet chamber; the heat exchange tube assembly 4 includes at least two U-shaped heat exchange tubes 41, both ends of which are fixed to the tube sheet assembly, with one end communicating with the inlet chamber and the other end communicating with the outlet chamber.

[0033] It is understandable that two tube sheets 21 are spaced apart and simultaneously connected to both ends of multiple U-shaped heat exchange tubes 41. Compared to a single tube sheet, two tube sheets increase the fixing points and force application points with the U-shaped heat exchange tubes 41, thereby strengthening the constraint force on the U-shaped heat exchange tubes 41, effectively controlling the deformation of the U-shaped heat exchange tubes 41 caused by rapid temperature changes in the heat exchange chamber, and reducing the risk of pull-out from the tube sheet.

[0034] In some optional embodiments, the inlet 11 into which the heating fluid flows and the outlet 12 out of the shell 1 are both connected to the heat exchange chamber of the shell 1, and the inlet 13 into which the condensate flows and the outlet 14 out of the shell are respectively connected to the inlet chamber and the outlet chamber.

[0035] It is understood that the hot fluid flows into the heat exchange chamber through the inlet 11, and the condensate flows into the heat exchange chamber through the inlet 13. After entering the heat exchange chamber through the U-shaped heat exchange tube 41 and exchanging heat with the hot fluid, the condensate flows back to the outlet chamber and flows out from the outlet 14. The heat-exchanged hot fluid flows out from the outlet 12.

[0036] In some optional embodiments, the outer wall of the housing 1 is provided with a level gauge 15 that communicates with the heat exchange chamber.

[0037] The level gauge 15 can observe the liquid level of the hot fluid inside the housing 1, thereby facilitating the control of the inlet and outlet pressure and rate of the hot fluid.

[0038] In some optional embodiments, the inner wall of the housing 1 is provided with an anti-impact plate 16, which prevents the hot fluid from being impacted and dispersed, reduces the impact energy of the hot fluid, and ensures that the U-shaped heat exchange tube in front of the axial flow ring is in full contact with the hot fluid.

[0039] Due to the use of a double tubesheet structure, the tubes on the two spaced tubesheets 21 expand or contract with changes in ambient temperature. Since the two tubesheets 21 operate at different temperatures, their thermal expansion also differs. When the tubesheets 21 rise from room temperature to operating temperature, radial displacement occurs, causing bending and shear stresses, which can easily lead to leaks at the connection between the tubesheets 21 and the U-shaped heat exchange tubes 41. To eliminate the influence of temperature, the spacing of the tubesheets 21 can be adjusted to allow the U-shaped heat exchange tubes 41 to flex, preventing stress at the connection and thus avoiding leaks. This way, when the U-shaped heat exchange tubes 41 shift, the strength of the U-shaped heat exchange tubes 41 is maintained without affecting the seal between the U-shaped heat exchange tubes 41 and the tubesheets 21.

[0040] Therefore, on the other hand, a parameter design method for a steam cooling energy-consuming device is also provided, for designing the aforementioned steam cooling energy-consuming device, comprising the following steps:

[0041] Based on the total heat exchange of the device, the heat exchange tube assembly 4 is allocated to determine the heat exchange capacity of the heat exchange tube assembly 4.

[0042] Based on the heat exchange capacity of the heat exchange tube assembly 4, calculate the total heat exchange area of ​​all U-shaped heat exchange tubes 41.

[0043] Based on the heat exchange capacity of the heat exchange tube assembly 4 and the heat exchange coefficient of the heat exchange tube assembly, the total heat exchange area of ​​all U-shaped heat exchange tubes 41 can be calculated. Based on the total heat exchange area of ​​all U-shaped heat exchange tubes 41, the preset diameter of each of the above-mentioned U-shaped heat exchange tubes 41 and the preset gap between adjacent U-shaped heat exchange tubes are determined.

[0044] It should be noted that, based on the total heat exchange area of ​​all U-shaped heat exchange tubes 41, the preset diameter of each of the above-mentioned U-shaped heat exchange tubes 41 and the preset gap between adjacent U-shaped heat exchange tubes need to be determined first. The number of U-shaped heat exchange tubes 41 should be determined according to the size of the heat exchange cavity of the shell 1. The heat exchange tube bundle formed by all U-shaped heat exchange tubes 41 should be smaller than the volume of the heat exchange cavity.

[0045] The spacing between the two tube sheets 21 is obtained based on the preset diameter of the U-shaped heat exchange tube 41 and the preset gap between adjacent U-shaped heat exchange tubes.

[0046] Based on the diameter of the U-shaped heat exchange tube 41 and the radial expansion difference between the two tube sheets 21, the distance between the two tube sheets 21 is calculated, including:

[0047] According to the formula The spacing between the two tube sheets 21 is determined, where g is the spacing between the two tube sheets 21, d0 is the outer diameter of the U-shaped heat exchange tube 41, Δr is the radial expansion difference between the two tube sheets 21, and E T Y is the elastic modulus of the U-shaped heat exchanger tube 41 at the average temperature. T It represents the yield strength of the heat exchanger tube material at the maximum metal temperature.

[0048] It's understandable, E T and Y T All of these can be obtained by looking up a table.

[0049] According to the formula The radial expansion difference between the two tube sheets 21 is determined, wherein the tube sheet 21 closer to the end of the U-shaped heat exchange tube 41 is the outer tube sheet 211, and the tube sheet 21 farther from the end of the U-shaped heat exchange tube 41 is the inner tube sheet 212. TL α1 is the distance from the outer U-shaped heat exchange tube to the center point of the shell 1, α2 is the coefficient of thermal expansion at the average metal temperature of the inner tube sheet 212, ΔT2 is the temperature difference between the average metal temperature of the inner tube sheet 212 and the ambient temperature, α1 is the coefficient of thermal expansion at the average metal temperature of the outer tube sheet 211, and ΔT1 is the temperature difference between the average metal temperature of the outer tube sheet 211 and the ambient temperature.

[0050] It is understandable that α1 and α2 are obtained by looking up a table, and ΔT1 and ΔT2 are the design parameters of the outer tube sheet 211 and the inner tube sheet 212.

[0051] The stress of the U-shaped heat exchange tube 41 is checked based on the spacing of the tube sheet 21. If the stress conditions of the U-shaped heat exchange tube 41 are not met, the number of U-shaped heat exchange tubes 41 and the gap between adjacent U-shaped heat exchange tubes are adjusted, the preset diameter and preset gap are readjusted, the spacing between the two tube sheets 21 is recalculated, and the stress is checked again until the stress conditions are met.

[0052] For example, based on the outer diameter of the heat exchange tube 41, the wall thickness of the U-shaped heat exchange tube 41, and the thermal expansion coefficient of the tube sheet 21, the corresponding model is input for calculation and verification to determine whether the spacing between the inner tube sheet 212 and the outer tube sheet 211 meets the allowable stress and yield strength of the U-shaped heat exchange tube 41. If it does not meet the requirements, the spacing between the inner tube sheet 212 and the outer tube sheet 211 and the preset gap are adjusted until the allowable stress and yield strength of the U-shaped heat exchange tube 41 are met.

[0053] Optionally, the thickness of the tube sheet 21 can be calculated based on the equivalent diameter of all the above-mentioned U-shaped heat exchange tubes 41 and the diameter of the above-mentioned U-shaped heat exchange tubes 41.

[0054] According to the formula Determine the thickness of the tube sheet 21, where D L Let S be the equivalent diameter of all the aforementioned U-shaped heat exchange tubes 41, S be the center-to-center distance of the aforementioned U-shaped heat exchange tubes 41, P be the design pressure of the aforementioned U-shaped heat exchange tubes 41, η be the arrangement factor of the aforementioned U-shaped heat exchange tubes 41, and [σ] be the equivalent diameter of all the aforementioned U-shaped heat exchange tubes 41. t The allowable stress of the material of the aforementioned U-shaped heat exchange tube 41 is given.

[0055] It is understandable, according to the formula Calculate the equivalent diameter, where A is the circumference of the tube bundle formed by all U-shaped heat exchange tubes 41 within the shell 1, and A is the area within the circumference range.

[0056] According to the formula Determine the arrangement coefficient of the above-mentioned U-shaped heat exchange tube 41.

[0057] Optionally, the opening diameters of the inlet 13 and the outlet 14 are calculated based on the design pressure difference of the condensate from the inlet 13 to the outlet 14.

[0058] This invention utilizes two spaced tube sheets connected to all U-shaped heat exchange tubes to increase the constraint force on the U-shaped heat exchange tubes. This effectively controls the deformation of the U-shaped heat exchange tubes caused by rapid temperature changes within the heat exchange chamber, reducing the risk of detachment from the tube sheets. A level gauge facilitates observation of the volume of the hot fluid within the shell, allowing for timely adjustments to the fluid's inflow and outflow. An anti-impact plate prevents and disperses the hot fluid, reducing its impact while ensuring sufficient contact between the U-shaped heat exchange tubes and the hot fluid in front of the axial flow coil. Furthermore, to eliminate the influence of temperature factors, the spacing between the two tube sheets is calculated based on the heat exchange area of ​​the U-shaped heat exchange tubes, the diameter of the U-shaped heat exchange tubes, and the gap between adjacent U-shaped heat exchange tubes. The stress on the U-shaped heat exchange tubes is then checked based on this tube sheet spacing until the stress conditions are met. This yields the required tube sheet spacing, number, diameter, and spacing of the U-shaped heat exchange tubes, ensuring both the strength of the U-shaped heat exchange tubes and maintaining the sealing performance of the connection between the U-shaped heat exchange tubes and the tube sheets.

[0059] In the description of this application, it should be noted that the terms "upper," "lower," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0060] It should be noted that in this application, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0061] The above description is merely a specific embodiment of this application, enabling those skilled in the art to understand or implement this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A parameter design method for a steam cooling energy-consuming device, used for designing a steam cooling energy-consuming device, characterized in that, The steam cooling energy-consuming device includes: Shell (1); Tube sheet assembly, comprising two spaced tube sheets (21), both tube sheets (21) being disposed within the housing (1) and connected to the inner wall of the housing (1) to divide the housing (1) into a heat exchange chamber and a water supply chamber; The partition (3) divides the water supply chamber into an inlet chamber and an outlet chamber; The heat exchange tube assembly (4) includes at least two U-shaped heat exchange tubes (41), both ends of which are fixed to the tube sheet assembly, and one end is connected to the inlet chamber and the other end is connected to the outlet chamber. The method includes the following steps: Based on the total heat exchange of the device, the heat exchange tube assembly (4) is allocated to determine the heat exchange capacity of the heat exchange tube assembly (4); Calculate the total heat exchange area of ​​all U-shaped heat exchange tubes (41) based on the heat exchange capacity of the heat exchange tube assembly (4); Based on the total heat exchange area of ​​all U-shaped heat exchange tubes (41), determine the preset diameter of each U-shaped heat exchange tube (41) and the preset gap between adjacent U-shaped heat exchange tubes; The spacing between the two tube sheets (21) is obtained based on the preset diameter of the U-shaped heat exchange tube (41) and the preset gap between adjacent U-shaped heat exchange tubes; The stress of the U-shaped heat exchange tube (41) is checked according to the spacing of the tube sheet (21). If the stress conditions of the U-shaped heat exchange tube (41) are not met, the number of U-shaped heat exchange tubes (41) and the gap between adjacent U-shaped heat exchange tubes are adjusted, the preset diameter and preset gap are readjusted, the spacing between the two tube sheets (21) is calculated again, and the stress is checked until the stress conditions are met.

2. The parameter design method for the steam cooling energy-consuming device as described in claim 1, characterized in that, Based on the diameter of the U-shaped heat exchange tube (41) and the radial expansion difference between the two tube sheets (21), the distance between the two tube sheets (21) is calculated, including: According to the formula The distance between the two tube sheets (21) is determined, where g is the distance between the two tube sheets (21). The outer diameter of the U-shaped heat exchange tube (41) is... The radial expansion difference between the two tube sheets (21) The elastic modulus of the U-shaped heat exchange tube (41) at the average temperature. It represents the yield strength of the heat exchanger tube material at the maximum metal temperature.

3. The parameter design method for the steam cooling energy-consuming device as described in claim 2, characterized in that, According to the formula The radial expansion difference between the two tube sheets (21) is determined, wherein the tube sheet (21) closer to the end of the U-shaped heat exchange tube (41) is the outer tube sheet (211), and the tube sheet (21) farther from the end of the U-shaped heat exchange tube (41) is the inner tube sheet (212). The distance from the outer U-shaped heat exchange tube to the center point of the shell (1) is the distance between the outer U-shaped heat exchange tube and the center point of the shell. The coefficient of thermal expansion of the inner tube sheet (212) at the average metal temperature is given. The difference between the average metal temperature of the inner tube sheet (212) and the ambient temperature. The coefficient of thermal expansion of the outer tube sheet (211) at the average metal temperature is given. The difference between the average metal temperature of the outer tube sheet (211) and the ambient temperature.

4. The parameter design method for the steam cooling energy-consuming device as described in claim 1, characterized in that, The thickness of the tube sheet (21) is calculated based on the equivalent diameter of all the U-shaped heat exchange tubes (41) and the diameter of the U-shaped heat exchange tubes (41).

5. The parameter design method for the steam cooling energy-consuming device as described in claim 4, characterized in that, According to the formula Determine the thickness of the tube sheet (21), wherein The equivalent diameter of all the U-shaped heat exchange tubes (41) is given. Let P be the center distance of the U-shaped heat exchange tubes (41), and let P be the design pressure of the U-shaped heat exchange tubes (41). The arrangement coefficient of the U-shaped heat exchange tube (41) is given. The allowable stress of the material of the U-shaped heat exchange tube (41) is given.

6. The parameter design method for the steam cooling energy-consuming device as described in claim 5, characterized in that, According to the formula Determine the arrangement coefficient of the U-shaped heat exchange tube (41).

7. The parameter design method for the steam cooling energy-consuming device as described in claim 1, characterized in that, The opening diameters of the inlet (13) and the outlet (14) are calculated based on the design pressure difference of the condensate from the inlet (13) to the outlet (14).

8. The parameter design method for the steam cooling energy-consuming device as described in claim 1, characterized in that, The inlet (11) into which the heating fluid flows and the outlet (12) into which it flows out are both connected to the heat exchange chamber of the shell (1). The inlet (13) into which the condensate flows and the outlet (14) into which it flows out are respectively connected to the inlet chamber and the outlet chamber.

9. The parameter design method for the steam cooling energy-consuming device as described in claim 1, characterized in that, The outer wall of the housing (1) is provided with a level gauge (15) that communicates with the heat exchange chamber.

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