Multi-lead dry type condenser

Abstract

The utility model discloses a multi-lead dry-type condenser, which comprises a plurality of groups of dry-type condensation components, each group of condensation components comprises a first shell pass shell-and-tube heat exchanger, a second shell pass shell-and-tube heat exchanger and a third shell pass shell-and-tube heat exchanger, the first shell pass shell-and-tube heat exchanger comprises a first tube body, and the second shell pass shell-and-tube heat exchanger comprises a second tube body. A first shell pass heat exchange cavity and a plurality of first heat exchange tubes are arranged in the first tube body; the second shell pass tube type heat exchanger comprises a second tube body, and a second shell pass heat exchange cavity and a plurality of second heat exchange tubes are arranged in the second tube body; the third shell pass shell-and-tube heat exchanger comprises a third tube body; a first shell pass steam inlet is formed in one end of the first pipe body, and a third condensate water outlet is formed in the lower end of the third pipe body; the first tube body is provided with a first tube pass fluid inlet and a first tube pass fluid outlet, and the first tube pass fluid inlet is communicated with the first heat exchange tube. According to the technical scheme, the structural design is reasonable, the usage amount of refrigerants can be reduced, the cooling speed is high, the cooling effect is good, and practicability is good.

Description

Technical Field

[0001] The utility model relates to the technical field of condensers, in particular to a multi-lead dry condenser. Background Art

[0002] The commonly used condensers at present are generally horizontal condensers and vertical condensers. A common horizontal condenser requires a large amount of refrigerant during operation, which will increase certain operating costs and is not very suitable for some small commercial refrigeration equipment. Moreover, the horizontal condenser operates on the ground, which will occupy a certain space and affect the aesthetics for some commercial places. The amount of water required by the horizontal condenser is relatively large, and it needs to be used in conjunction with a water pump with a large flow rate, resulting in high energy consumption. The horizontal design structure of the horizontal condenser may lead to poor heat dissipation effect and requires additional heat dissipation measures.

[0003] Common vertical condensers also have some disadvantages. For example, they require a high installation height. The vertical condenser needs to be installed at a high position, which will increase the installation difficulty and cost and have high requirements for pipelines. The vertical condenser needs to be vertically connected to the pipeline, so it has high requirements for the pipeline and needs to ensure the verticality and stability of the pipeline, and the cooling water consumption is large. The refrigerant consumption of the vertical condenser is relatively large because the cooling water temperature rise is generally only 2 - 4°C and the logarithmic mean temperature difference is generally about 5 - 6°C, which increases the operating cost. It is greatly affected by the wind. The vertical design of the vertical condenser makes it vulnerable to the influence of the wind, which may lead to a decrease in the heat dissipation effect and poor practicability. Content of the Utility Model

[0004] Aiming at the deficiencies of the prior art, the purpose of the utility model is to provide a multi-lead dry condenser with reasonable structural design, which can reduce the usage amount of refrigerant, has a fast cooling speed, good cooling effect and good practicability.

[0005] To achieve the above object, the present utility model provides the following technical solutions: A multi-lead dry condenser, comprising a plurality of groups of dry condensation components. Each group of condensation components includes a first shell-side tubular heat exchanger, a second shell-side tubular heat exchanger, and a third shell-side tubular heat exchanger. The first shell-side tubular heat exchanger includes a first tube body, and a first shell-side heat exchange cavity and a plurality of first heat exchange tubes are arranged inside the first tube body; the second shell-side tubular heat exchanger includes a second tube body, and a second shell-side heat exchange cavity and a plurality of second heat exchange tubes are arranged inside the second tube body; the third shell-side tubular heat exchanger includes a third tube body, and a third shell-side heat exchange cavity and a plurality of third heat exchange tubes are arranged inside the third tube body; one end of the first tube body is provided with a first shell-side steam inlet, a first shell-side connecting pipe is fixedly arranged between the first shell-side heat exchange cavity and the second shell-side heat exchange cavity, and a second shell-side connecting pipe is fixedly arranged between the second shell-side heat exchange cavity and the third shell-side heat exchange cavity; a third condensate outlet is arranged at the lower end of the third tube body;

[0006] A first tube-side fluid inlet and a first tube-side fluid outlet are arranged on the first tube body, and the first tube-side fluid inlet is communicated with the first heat exchange tubes; a second tube-side fluid inlet and a second tube-side fluid outlet are arranged on the second tube body, and a first tube-side connecting pipe is fixedly arranged between the second tube-side fluid inlet and the first tube-side fluid outlet; a third tube-side fluid inlet and a third tube-side fluid outlet are arranged on the third tube body, and a second tube-side connecting pipe is fixedly arranged between the third tube-side fluid inlet and the second tube-side fluid outlet.

[0007] The present utility model is further arranged as follows: A first left sealing partition is fixedly arranged at the left end of the first heat exchange tube, a first right sealing partition is fixedly arranged at the right end of the first heat exchange tube, both the first left sealing partition and the first right sealing partition are fixedly connected with the inner wall surface of the first tube body, and the connection between the first left sealing partition and the inner wall surface of the first tube body is sealed, and the connection between the first right sealing partition and the inner wall surface of the first tube body is sealed; the first shell-side heat exchange cavity is located between the first left sealing partition and the first right sealing partition; the first shell-side steam inlet is arranged at the upper left end of the first tube body, and this first shell-side steam inlet is located at the right end of the first left sealing partition, the first shell-side steam inlet is communicated with the first shell-side heat exchange cavity, a first condensate outlet is arranged at the lower right end of the first tube body, this first condensate outlet is located at the left end of the first right sealing partition, the first condensate outlet is communicated with the first shell-side heat exchange cavity, and the upper end of the first shell-side connecting pipe is fixedly connected with the lower end of the first condensate outlet;

[0008] The first tube-side fluid inlet is arranged at the upper right end of the first tube body, and the first tube-side fluid inlet is located at the right end of the first right sealing partition. The first right sealing partition is provided with first tube-side fluid through holes at positions corresponding to the right ports of each first heat exchange tube. The first left sealing partition is provided with second tube-side fluid through holes at positions corresponding to the left ports of each first heat exchange tube. The left ends of the first heat exchange tubes are fixedly connected to the first left sealing partition, and the right ends of the first heat exchange tubes are fixedly connected to the first right sealing partition. The first tube-side fluid outlet is arranged at the lower left end of the first tube body, and the first tube-side fluid outlet is located at the left end of the first left sealing partition.

[0009] The present utility model is further arranged as follows: The left end of the second heat exchange tube is fixedly provided with a second left sealing partition, and the right end of the second heat exchange tube is fixedly provided with a second right sealing partition. The second left sealing partition and the second right sealing partition are both fixedly connected to the inner wall surface of the second tube body, and the connection between the second left sealing partition and the inner wall surface of the second tube body is sealed, and the connection between the second right sealing partition and the inner wall surface of the second tube body is sealed. The second shell-side heat exchange cavity is located between the second left sealing partition and the second right sealing partition. The upper right end of the second heat exchange tube is provided with a second shell-side steam inlet, which is located at the left end of the second right sealing partition. The second shell-side steam inlet is communicated with the second shell-side heat exchange cavity, and the lower end of the first shell-side connecting pipe is fixedly connected to the upper end of the second shell-side steam inlet. The lower left end of the second tube body is provided with a second condensate outlet, which is located at the right end of the first left sealing partition. The second condensate outlet is communicated with the second shell-side heat exchange cavity, and the upper end of the second shell-side connecting pipe is fixedly connected to the upper end of the second condensate outlet.

[0010] The second tube-side fluid inlet is arranged at the upper left end of the second tube body, and the second tube-side fluid inlet is located at the left end of the second left sealing partition. The second left sealing partition is provided with third tube-side fluid through holes at positions corresponding to the left ports of each second heat exchange tube. The second right sealing partition is provided with fourth tube-side fluid through holes at positions corresponding to the right ports of each second heat exchange tube. The left ends of the second heat exchange tubes are fixedly connected to the second left sealing partition, and the right ends of the second heat exchange tubes are fixedly connected to the second right sealing partition. The second tube-side fluid outlet is arranged at the lower right end of the second tube body, and the second tube-side fluid outlet is located at the right end of the second right sealing partition.

[0011] The present utility model is further configured as follows: a third left sealing partition is fixedly arranged at the left end of the third heat exchange tube, a third right sealing partition is fixedly arranged at the right end of the third heat exchange tube, both the third left sealing partition and the third right sealing partition are fixedly connected to the inner wall surface of the third tube body, and the connection between the third left sealing partition and the inner wall surface of the third tube body is sealed, and the connection between the third right sealing partition and the inner wall surface of the third tube body is sealed; the third shell-side heat exchange cavity is located between the third left sealing partition and the third right sealing partition; a third shell-side steam inlet is arranged at the upper left end of the third tube body, and this third shell-side steam inlet is located at the right end of the third left sealing partition, the third shell-side steam inlet is communicated with the third shell-side heat exchange cavity, the lower end of the second shell-side connecting pipe is fixedly connected to the upper end of the third shell-side steam inlet, the third condensate outlet is arranged at the lower right end of the third tube body, and this third condensate outlet is located at the left end of the third right sealing partition, and the third condensate outlet is communicated with the third shell-side heat exchange cavity;

[0012] The third tube-side fluid inlet is arranged at the upper right end of the third tube body, and the third tube-side fluid inlet is located at the right end of the third right sealing partition. The third right sealing partition is provided with third tube-side fluid through holes at positions aligning with the right ports of each third heat exchange tube, and the third left sealing partition is provided with third tube-side fluid through holes at positions aligning with the left ports of each third heat exchange tube. The left ends of the third heat exchange tubes are fixedly connected to the third left sealing partition, and the right ends of the third heat exchange tubes are fixedly connected to the third right sealing partition; the third tube-side fluid outlet is arranged at the lower left end of the third tube body, and the third tube-side fluid outlet is located at the left end of the third left sealing partition.

[0013] The present utility model is further configured as follows: at least one pressure gauge connection port is arranged at the upper end of the first tube body, and a first pull rod and a first baffle are further arranged inside the first tube body; a second pull rod and a second baffle are further arranged inside the second tube body, and a third pull rod and a third baffle are further arranged inside the third tube body.

[0014] The present utility model is further configured as follows: the number of the dry condensation assemblies is 4 - 8 groups. Fixed brackets are arranged at the bottom and / or side surfaces of the first shell-side shell-and-tube heat exchanger, the second shell-side shell-and-tube heat exchanger, and the third shell-side shell-and-tube heat exchanger of each group of dry condensation assemblies. The first shell-side shell-and-tube heat exchanger, the second shell-side shell-and-tube heat exchanger, and the third shell-side shell-and-tube heat exchanger are respectively fixedly connected to the fixed brackets through bolts.

[0015] The beneficial effects of the present utility model are as follows: compared with the prior art, the structure of the present utility model is reasonably designed. The solvent steam flows through the shell side, the refrigerant flows through the tube side, and a multi-pass design is adopted to achieve countercurrent heat exchange, ensuring that the flow velocity in the heat exchange tube > 1.5 m / s, which can not only improve the heat exchange effect but also reduce the accumulation of sundries. The solvent steam passes through multiple passes and has sufficient contact time for heat exchange.

[0016] In this utility model, the multi-lead dry condenser splits the condensation area into multiple parts, which can not only reduce the use of refrigerant but also achieve a better cooling effect. Compared with the existing horizontal condensers and vertical condensers, the multi-lead dry condenser of this utility model can reduce the amount of refrigerant used, has sufficient contact time for heat exchange, has a fast cooling speed, a higher utilization rate of heat exchange tubes, a good cooling effect, less liquid storage, and good practicability.

[0017] The following further explains this utility model in conjunction with the specification drawings and specific embodiments. Description of the Drawings

[0018] Figure 1 is a schematic structural diagram of an embodiment of this utility model;

[0019] Figure 2 is a schematic structural diagram of a group of dry condensation components of an embodiment of this utility model;

[0020] Figure 3 is an assembly schematic diagram of applying an embodiment of this utility model to an existing concentration device Figure 1 ;

[0021] Figure 4 is an assembly schematic diagram of applying an embodiment of this utility model to an existing concentration device Figure 2 。 Specific Embodiments

[0022] In the description of this embodiment, it should be noted that when terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "front", "rear", etc. appear, the orientation or positional relationship indicated is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing this utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to this utility model. In addition, when terms such as "first", "second", "third" appear, they are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0023] See Figures 1 to 4, a multi - lead dry condenser disclosed by the present utility model includes several groups of dry condensation components. Each group of condensation components includes a first shell - side tubular heat exchanger 1, a second shell - side tubular heat exchanger 2, and a third shell - side tubular heat exchanger 3. The first shell - side tubular heat exchanger 1 includes a first tube body 11, and a first shell - side heat exchange chamber 12 and several first heat exchange tubes 13 are arranged inside the first tube body 11; the second shell - side tubular heat exchanger 2 includes a second tube body 21, and a second shell - side heat exchange chamber 22 and several second heat exchange tubes 23 are arranged inside the second tube body 21; the third shell - side tubular heat exchanger 3 includes a third tube body 31, and a third shell - side heat exchange chamber 32 and several third heat exchange tubes 33 are arranged inside the third tube body 31; one end of the first tube body 11 is provided with a first shell - side steam inlet 14, a first shell - side connecting pipe 4 is fixedly arranged between the first shell - side heat exchange chamber 12 and the second shell - side heat exchange chamber 22, and a second shell - side connecting pipe 5 is fixedly arranged between the second shell - side heat exchange chamber 22 and the third shell - side heat exchange chamber 32; the lower end of the third tube body 31 is provided with a third condensate outlet 34;

[0024] A first tube - side fluid inlet 15 and a first tube - side fluid outlet 16 are arranged on the first tube body 11, and the first tube - side fluid inlet 15 is communicated with the first heat exchange tube 13; a second tube - side fluid inlet 25 and a second tube - side fluid outlet 26 are arranged on the second tube body 21, and a first tube - side connecting pipe 6 is fixedly arranged between the second tube - side fluid inlet 25 and the first tube - side fluid outlet 16; a third tube - side fluid inlet 35 and a third tube - side fluid outlet 36 are arranged on the third tube body 31, and a second tube - side connecting pipe 7 is fixedly arranged between the third tube - side fluid inlet 35 and the second tube - side fluid outlet 26.

[0025] Preferably, the first shell - side tubular heat exchanger 1, the second shell - side tubular heat exchanger 2, and the third shell - side tubular heat exchanger 3 are assembled into an integral structure.

[0026] To make the structural design of the present utility model more reasonable, preferably, a first left sealing partition 17 is fixedly arranged at the left end of the first heat exchange tube 13 in this embodiment, and a first right sealing partition 18 is fixedly arranged at the right end of the first heat exchange tube 13. Both the first left sealing partition 17 and the first right sealing partition 18 are fixedly connected to the inner wall surface of the first tube body 11, and the connection between the first left sealing partition 17 and the inner wall surface of the first tube body 11 is sealed, and the connection between the first right sealing partition 18 and the inner wall surface of the first tube body 11 is sealed; the first shell-side heat exchange cavity 12 is located between the first left sealing partition 17 and the first right sealing partition 18; the first shell-side steam inlet 14 is arranged at the upper left end of the first tube body 11, and the first shell-side steam inlet 14 is located at the right end of the first left sealing partition 17. The first shell-side steam inlet 14 is communicated with the first shell-side heat exchange cavity 12. A first condensate outlet 19 is arranged at the lower right end of the first tube body 11, and the first condensate outlet is located at the left end of the first right sealing partition 18. The first condensate outlet 19 is communicated with the first shell-side heat exchange cavity 12. The upper end of the first shell-side connecting pipe 4 is fixedly connected to the lower end of the first condensate outlet 19;

[0027] The first tube-side fluid inlet 15 is arranged at the upper right end of the first tube body 11, and the first tube-side fluid inlet 15 is located at the right end of the first right sealing partition 18. The first right sealing partition 18 is provided with first tube-side fluid through holes at positions corresponding to the right ports of each first heat exchange tube 13. The first left sealing partition 17 is provided with second tube-side fluid through holes at positions corresponding to the left ports of each first heat exchange tube 13. The left ends of the first heat exchange tubes 13 are fixedly connected to the first left sealing partition 17, and the right ends of the first heat exchange tubes 13 are fixedly connected to the first right sealing partition 18; the first tube-side fluid outlet 16 is arranged at the lower left end of the first tube body 11, and the first tube-side fluid outlet 16 is located at the left end of the first left sealing partition 17.

[0028] Preferably, a second left sealing partition plate 27 is fixedly arranged at the left end of the second heat exchange tube 23, and a second right sealing partition plate 28 is fixedly arranged at the right end of the second heat exchange tube 23. Both the second left sealing partition plate 27 and the second right sealing partition plate 28 are fixedly connected to the inner wall surface of the second tube body 21, and the connection between the second left sealing partition plate 27 and the inner wall surface of the second tube body 21 is sealed, and the connection between the second right sealing partition plate 28 and the inner wall surface of the second tube body 21 is sealed; the second shell-side heat exchange cavity 22 is located between the second left sealing partition plate 27 and the second right sealing partition plate 28; a second shell-side steam inlet is arranged at the upper right end of the second heat exchange tube 23, and this second shell-side steam inlet is located at the left end of the second right sealing partition plate 28, and the second shell-side steam inlet is communicated with the second shell-side heat exchange cavity, and the lower end of the first shell-side connecting pipe 4 is fixedly connected to the upper end of the second shell-side steam inlet; a second condensed water outlet is arranged at the lower left end of the second tube body 21, and this second condensed water outlet is located at the right end of the first left sealing partition plate 17, and the second condensed water outlet is communicated with the second shell-side heat exchange cavity 22, and the upper end of the second shell-side connecting pipe 5 is fixedly connected to the upper end of the second condensed water outlet;

[0029] The second tube-side fluid inlet 25 is arranged at the upper left end of the second tube body 21, and the second tube-side fluid inlet 25 is located at the left end of the second left sealing partition plate 27. The second left sealing partition plate 27 is provided with third tube-side fluid through holes at positions corresponding to the left ports of each second heat exchange tube 23, and the second right sealing partition plate 28 is provided with fourth tube-side fluid through holes at positions corresponding to the right ports of each second heat exchange tube 23. The left ends of the second heat exchange tubes 23 are fixedly connected to the second left sealing partition plate 27, and the right ends of the second heat exchange tubes 23 are fixedly connected to the second right sealing partition plate 28; the second tube-side fluid outlet 26 is arranged at the lower right end of the second tube body 21, and the second tube-side fluid outlet 26 is located at the right end of the second right sealing partition plate 28.

[0030] Preferably, a third left sealing partition plate 37 is fixedly arranged at the left end of the third heat exchange tube 33, and a third right sealing partition plate 38 is fixedly arranged at the right end of the third heat exchange tube 33. Both the third left sealing partition plate 37 and the third right sealing partition plate 38 are fixedly connected to the inner wall surface of the third tube body 31, and the connection between the third left sealing partition plate 37 and the inner wall surface of the third tube body 31 is sealed, and the connection between the third right sealing partition plate 38 and the inner wall surface of the third tube body 31 is sealed; the third shell-side heat exchange cavity 32 is located between the third left sealing partition plate 37 and the third right sealing partition plate 38; a third shell-side steam inlet is arranged at the upper left end of the third tube body 31, and this third shell-side steam inlet is located at the right end of the third left sealing partition plate 37. The third shell-side steam inlet is communicated with the third shell-side heat exchange cavity 32. The lower end of the second shell-side connecting pipe 5 is fixedly connected to the upper end of the third shell-side steam inlet. The third condensate outlet 34 is arranged at the lower right end of the third tube body 31, and this third condensate outlet 34 is located at the left end of the third right sealing partition plate 38. The third condensate outlet 34 is communicated with the third shell-side heat exchange cavity 32;

[0031] The third tube-side fluid inlet 35 is arranged at the upper right end of the third tube body 31, and the third tube-side fluid inlet 35 is located at the right end of the third right sealing partition plate 38. The third right sealing partition plate 38 is provided with third tube-side fluid through holes at positions aligning with the right ports of each third heat exchange tube 33, and the third left sealing partition plate 37 is provided with third tube-side fluid through holes at positions aligning with the left ports of each third heat exchange tube 33. The left ends of the third heat exchange tubes 33 are fixedly connected to the third left sealing partition plate 37, and the right ends of the third heat exchange tubes 33 are fixedly connected to the third right sealing partition plate 38; the third tube-side fluid outlet 36 is arranged at the lower left end of the third tube body 31, and the third tube-side fluid outlet 36 is located at the left end of the third left sealing partition plate 37.

[0032] Preferably, at least one pressure gauge connection port 110 is arranged at the upper end of the first tube body 11, and a first pull rod and a first baffle are further arranged in the first tube body 11; a second pull rod and a second baffle are further arranged in the second tube body 21, and a third pull rod and a third baffle are further arranged in the third tube body 31.

[0033] Preferably, the number of the dry condensation assemblies is 4 - 8 groups. Fixed brackets 8 are arranged at the bottom and / or side surfaces of the first shell-side shell-and-tube heat exchanger 1, the second shell-side shell-and-tube heat exchanger 2, and the third shell-side shell-and-tube heat exchanger 3 of each group of dry condensation assemblies. The first shell-side shell-and-tube heat exchanger 1, the second shell-side shell-and-tube heat exchanger 2, and the third shell-side shell-and-tube heat exchanger 3 are respectively fixedly connected to the fixed brackets 8 through bolts.

[0034] In each group of dry condensation components of this embodiment, there are 3 shell-and-tube heat exchangers, namely the first shell-and-tube heat exchanger 1, the second shell-and-tube heat exchanger 2, and the third shell-and-tube heat exchanger 3. The number of heat exchange tubes in each shell-and-tube heat exchanger is more than 1.

[0035] In practical applications, as Figures 3 to 4 shown, this utility model is assembled onto an existing concentration device for use. The solvent vapor flows through the shell side, and the refrigerant flows through the tube side. A multi-pass design is adopted to achieve countercurrent heat exchange, ensuring that the flow velocity in the heat exchange tubes > 1.5 m / s, which can not only improve the heat exchange effect but also reduce the accumulation of debris. The solvent vapor has sufficient contact time for heat exchange after passing through multiple passes.

[0036] For traditional condensers, to achieve the required condensation area, a larger cylinder diameter and heat exchange tubes are needed, and there are requirements for the liquid storage area to ensure there is enough condensation area for cooling. However, for the multi-pass dry condenser of this utility model, the condensation area is split into multiple parts, which can not only reduce the use of refrigerant but also achieve a better cooling effect.

[0037] When recovering ethanol, vacuum pumping is the main factor for ethanol loss. With the structural design of this utility model, it can maintain the vacuum degree without opening the vacuum pump for a long time, and the ethanol recovery rate is as high as over 99.0%.

[0038] When there is a leak point inside the multi-pass dry condenser of this utility model, compared with traditional condensers, it is easier to find which group has the leak, and the switch can be controlled by a valve without affecting the use of other groups, which is convenient to use and reliable in operation; compared with existing horizontal condensers and vertical condensers, the multi-pass dry condenser of this utility model has a reasonable structural design, can reduce the refrigerant usage amount, has sufficient contact time for heat exchange, has a fast cooling speed, a higher utilization rate of heat exchange tubes, a good cooling effect, less liquid storage, and good practicability.

[0039] The above embodiments' specific description of this utility model is only for further explaining this utility model and cannot be understood as a limitation on the protection scope of this utility model. Any non-essential improvements and adjustments made by those skilled in the art based on the content of the above utility model fall within the protection scope of this utility model.

Claims

1. A multi-lead dry condenser, comprising a number of groups of dry condensation components, characterized in that: Each set of condensation components includes a first shell-and-tube heat exchanger (1), a second shell-and-tube heat exchanger (2), and a third shell-and-tube heat exchanger (3). The first shell-and-tube heat exchanger (1) includes a first tube body (11), and a first shell-side heat exchange chamber (12) and a number of first heat exchange tubes (13) are arranged in the first tube body (11); the second shell-and-tube heat exchanger (2) includes a second tube body (21), and a second shell-side heat exchange chamber (22) and a number of second heat exchange tubes (23) are arranged in the second tube body (21); the third shell-and-tube heat exchanger (3) includes a third tube body (31), and a third shell-side heat exchange chamber (32) and a number of third heat exchange tubes (33) are arranged in the third tube body (31); a first shell-side steam inlet (14) is arranged at one end of the first tube body (11), a first shell-side connecting pipe (4) is fixedly arranged between the first shell-side heat exchange chamber (12) and the second shell-side heat exchange chamber (22), and a second shell-side connecting pipe (5) is fixedly arranged between the second shell-side heat exchange chamber (22) and the third shell-side heat exchange chamber (32); a third condensate outlet (34) is arranged at the lower end of the third tube body (31). A first tube-side fluid inlet (15) and a first tube-side fluid outlet (16) are arranged on the first tube body (11), and the first tube-side fluid inlet (15) is communicated with the first heat exchange tube (13); a second tube-side fluid inlet (25) and a second tube-side fluid outlet (26) are arranged on the second tube body (21), and a first tube-side connecting pipe (6) is fixedly arranged between the second tube-side fluid inlet (25) and the first tube-side fluid outlet (16); a third tube-side fluid inlet (35) and a third tube-side fluid outlet (36) are arranged on the third tube body (31), and a second tube-side connecting pipe (7) is fixedly arranged between the third tube-side fluid inlet (35) and the second tube-side fluid outlet (26).

2. The multi-lead dry condenser according to claim 1, characterized in that: A first left sealing partition plate (17) is fixedly arranged at the left end of the first heat exchange tube (13), and a first right sealing partition plate (18) is fixedly arranged at the right end of the first heat exchange tube (13). Both the first left sealing partition plate (17) and the first right sealing partition plate (18) are fixedly connected to the inner wall surface of the first tube body (11), and the connection between the first left sealing partition plate (17) and the inner wall surface of the first tube body (11) is sealed, and the connection between the first right sealing partition plate (18) and the inner wall surface of the first tube body (11) is sealed; the first shell-side heat exchange cavity (12) is located between the first left sealing partition plate (17) and the first right sealing partition plate (18); the first shell-side steam inlet (14) is arranged at the upper left end of the first tube body (11), and the first shell-side steam inlet (14) is located at the right end of the first left sealing partition plate (17), and the first shell-side steam inlet (14) is communicated with the first shell-side heat exchange cavity (12). A first condensate outlet (19) is arranged at the lower right end of the first tube body (11), and the first condensate outlet (19) is located at the left end of the first right sealing partition plate (18). The first condensate outlet (19) is communicated with the first shell-side heat exchange cavity (12), and the upper end of the first shell-side connecting pipe (4) is fixedly connected to the lower end of the first condensate outlet (19); The first tube-side fluid inlet (15) is arranged at the upper right end of the first tube body (11), and the first tube-side fluid inlet (15) is located at the right end of the first right sealing partition plate (18). The first right sealing partition plate (18) is provided with first tube-side fluid through holes at positions corresponding to the right ports of each first heat exchange tube (13), and the first left sealing partition plate (17) is provided with second tube-side fluid through holes at positions corresponding to the left ports of each first heat exchange tube (13). The left ends of the first heat exchange tubes (13) are fixedly connected to the first left sealing partition plate (17), and the right ends of the first heat exchange tubes (13) are fixedly connected to the first right sealing partition plate (18); the first tube-side fluid outlet (16) is arranged at the lower left end of the first tube body (11), and the first tube-side fluid outlet (16) is located at the left end of the first left sealing partition plate (17).

3. The multi-lead dry condenser according to claim 2, wherein: A second left sealing partition plate (27) is fixedly arranged at the left end of the second heat exchange tube (23), and a second right sealing partition plate (28) is fixedly arranged at the right end of the second heat exchange tube (23). Both the second left sealing partition plate (27) and the second right sealing partition plate (28) are fixedly connected to the inner wall surface of the second tube body (21), and the connection between the second left sealing partition plate (27) and the inner wall surface of the second tube body (21) is sealed, and the connection between the second right sealing partition plate (28) and the inner wall surface of the second tube body (21) is sealed; the second shell-side heat exchange cavity (22) is located between the second left sealing partition plate (27) and the second right sealing partition plate (28); a second shell-side steam inlet is arranged at the upper right end of the second heat exchange tube (23), and this second shell-side steam inlet is located at the left end of the second right sealing partition plate (28), and the second shell-side steam inlet communicates with the second shell-side heat exchange cavity, and the lower end of the first shell-side connecting pipe (4) is fixedly connected to the upper end of the second shell-side steam inlet; a second condensate outlet is arranged at the lower left end of the second tube body (21), and this second condensate outlet is located at the right end of the first left sealing partition plate (17), and the second condensate outlet communicates with the second shell-side heat exchange cavity (22), and the upper end of the second shell-side connecting pipe (5) is fixedly connected to the upper end of the second condensate outlet; The second tube-side fluid inlet (25) is arranged at the upper left end of the second tube body (21), and the second tube-side fluid inlet (25) is located at the left end of the second left sealing partition plate (27). The second left sealing partition plate (27) is provided with third tube-side fluid through holes at positions corresponding to the left ports of each second heat exchange tube (23), and the second right sealing partition plate (28) is provided with fourth tube-side fluid through holes at positions corresponding to the right ports of each second heat exchange tube (23). The left ends of the second heat exchange tubes (23) are all fixedly connected to the second left sealing partition plate (27), and the right ends of the second heat exchange tubes (23) are all fixedly connected to the second right sealing partition plate (28); the second tube-side fluid outlet (26) is arranged at the lower right end of the second tube body (21), and the second tube-side fluid outlet (26) is located at the right end of the second right sealing partition plate (28).

4. The multi-lead dry condenser according to claim 3, wherein: A third left sealing partition plate (37) is fixedly arranged at the left end of the third heat exchange tube (33), and a third right sealing partition plate (38) is fixedly arranged at the right end of the third heat exchange tube (33). Both the third left sealing partition plate (37) and the third right sealing partition plate (38) are fixedly connected to the inner wall surface of the third tube body (31), and the connection between the third left sealing partition plate (37) and the inner wall surface of the third tube body (31) is sealed, and the connection between the third right sealing partition plate (38) and the inner wall surface of the third tube body (31) is sealed; the third shell-side heat exchange cavity (32) is located between the third left sealing partition plate (37) and the third right sealing partition plate (38); a third shell-side steam inlet is arranged at the upper left end of the third tube body (31), and this third shell-side steam inlet is located at the right end of the third left sealing partition plate (37). The third shell-side steam inlet is communicated with the third shell-side heat exchange cavity (32). The lower end of the second shell-side connecting pipe (5) is fixedly connected to the upper end of the third shell-side steam inlet. The third condensate outlet (34) is arranged at the lower right end of the third tube body (31), and this third condensate outlet (34) is located at the left end of the third right sealing partition plate (38). The third condensate outlet (34) is communicated with the third shell-side heat exchange cavity (32); The third tube-side fluid inlet (35) is arranged at the upper right end of the third tube body (31), and the third tube-side fluid inlet (35) is located at the right end of the third right sealing partition plate (38). The third right sealing partition plate (38) is provided with third tube-side fluid through holes at positions aligning with the right ports of each third heat exchange tube (33). The third left sealing partition plate (37) is provided with third tube-side fluid through holes at positions aligning with the left ports of each third heat exchange tube (33). The left ends of the third heat exchange tubes (33) are fixedly connected to the third left sealing partition plate (37), and the right ends of the third heat exchange tubes (33) are fixedly connected to the third right sealing partition plate (38); the third tube-side fluid outlet (36) is arranged at the lower left end of the third tube body (31), and the third tube-side fluid outlet (36) is located at the left end of the third left sealing partition plate (37).

5. A multi-lead dry condenser according to claim 1 or 4, characterized in that: At least one pressure gauge connection port (110) is arranged at the upper end of the first tube body (11), and a first pull rod and a first baffle are further arranged in the first tube body (11); a second pull rod and a second baffle are further arranged in the second tube body (21), and a third pull rod and a third baffle are further arranged in the third tube body (31).

6. A multi-lead dry condenser according to claim 1 or 4, characterized in that: The number of the dry condensation assemblies is 4 - 8 groups. Fixed brackets (8) are arranged at the bottom and / or side surfaces of the first shell-side shell-and-tube heat exchanger (1), the second shell-side shell-and-tube heat exchanger (2), and the third shell-side shell-and-tube heat exchanger (3) of each group of dry condensation assemblies. The first shell-side shell-and-tube heat exchanger (1), the second shell-side shell-and-tube heat exchanger (2), and the third shell-side shell-and-tube heat exchanger (3) are respectively fixedly connected to the fixed brackets (8) through bolts.

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