Condenser

Abstract

The condenser comprises a shell, the upper end and the lower end of the shell are provided with a shell pass inlet and a shell pass outlet respectively, a condensation pipe assembly is arranged in the shell and comprises a first condensation coil and a second condensation coil which are arranged at intervals, and the second condensation coil is located on the inner side of the first condensation coil. And choke pipes are arranged on the inner side of the second condensing coil at intervals. The condenser disclosed by the utility model can ensure that all cooled gas is condensed into liquid, so that the condensation effect and the organic solvent collection rate are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to low temperature concentration technical field especially relates to a condenser. BACKGROUND

[0002] The conventional winding pipe heat exchanger, coil heat exchanger, column pipe heat exchanger, basically all cold medium goes shell pass, need to be cooled gaseous part goes pipe pass.However this type heat exchanger, in organic solvent recovery condition, cannot be applicable.Because organic solvent boiling point is low, melting point is lower, because organic solvent contains a small amount of water, and this form heat exchanger, cold medium temperature is lower than 0 DEG C, the part water contained in organic solvent will freeze in the fine tube, thereby blocking the fine tube internal passage, and organic solvent has not been cooled down (forms liquid state), in the long run, serious will freeze the pipe directly.If the two are interchanged, cold medium goes pipe pass, need to be cooled gaseous part goes shell pass, although can solve the problem of water freezing in the fine tube, but because its heat exchange area far from the requirement, so condensing effect is also not very ideal, and the recovery rate of organic solvent is still very low.

[0003] If the two are interchanged, cold medium goes pipe pass, need to be cooled gaseous part goes shell pass, although can solve the problem of water freezing in the fine tube, but because its heat exchange area far from the requirement, so condensing effect is also not very ideal, and the recovery rate of organic solvent is still very low.Uncollected organic solvent will be directly discharged to the atmosphere, causing pollution and unnecessary damage to the environment. SUMMARY

[0004] The utility model provides a condenser, can guarantee the gaseous that is cooled, all condenses and forms liquid state, improves condensing effect and organic solvent collection rate.

[0005] The utility model solves the technical scheme that its technical problem adopts: a condenser, including the shell, the upper and lower ends of the shell are equipped with shell pass import and shell pass export respectively, be equipped with condensing pipe assembly in the shell, the condensing pipe assembly includes the first condensing coil pipe and second condensing coil pipe that set apart, the second condensing coil pipe is located the inside of first condensing coil pipe, the inside spacing of second condensing coil pipe sets apart the resistance flow pipe.

[0006] Further, to ensure the heat exchange area, the spacing between the inner wall of the shell and the outside of the first condensing coil pipe is equal to the spacing between the outside of the second condensing coil pipe and the inside of the first condensing coil pipe.

[0007] Further, in order to avoid the airflow short circuit phenomenon, the spacing between the outer side of the flow resistance pipe and the inner side of the second condensing coil is equal to the spacing between the outer side of the second condensing coil and the inner side of the first condensing coil.

[0008] Further, in order to ensure the condensing effect, the first condensing coil and the second condensing coil are the same or opposite in rotation direction.

[0009] Further, the upper end of the first condensing coil and the second condensing coil is connected to the pipe outlet pipe, and the lower end is connected to the pipe inlet pipe.

[0010] Further, the flow resistance pipe is arranged in the vertical direction.

[0011] Further, in order to observe the working condition inside the shell, an observation lens is arranged on the surface of the shell.

[0012] Further, in order to facilitate the disassembly and assembly of the condenser, the outer wall of the shell is further provided with a mounting support.

[0013] Compared with the prior art, the beneficial effects of the present application are:

[0014] 1. The condenser of the present application adopts equal spacing arrangement of the inner wall of the shell, the first condensing coil, the second condensing coil and the flow resistance pipe, ensures that the airflow passes through the full diameter in the shell, avoids the airflow short circuit phenomenon, effectively ensures the heat exchange area, improves the heat exchange efficiency, and the organic solvent collection rate can reach more than 98%.

[0015] 2. The condenser of the present application, the pipe passes through the refrigerant, the shell passes through the gaseous state which needs to be cooled, the refrigerant temperature can be set according to the actual demand, so as to ensure that the gaseous state which needs to be cooled in the shell is collected completely, forms liquid state, and reaches extremely high organic solvent collection rate. BRIEF DESCRIPTION OF DRAWINGS

[0016] The present application will be further described below in combination with the drawings and examples.

[0017] Figure 1 The structure of the condenser of the present application is shown in the figure;

[0018] In the figure: 1, shell, 2, first condensing coil, 3, second condensing coil, 4, flow resistance pipe, 5, shell inlet, 6, shell outlet, 7, pipe outlet pipe, 8, pipe inlet pipe, 9, mounting support, 10, observation lens. DETAILED DESCRIPTION

[0019] The present application will be further described below in combination with the drawings and examples.

[0020] In the description of the utility model, it needs to be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as a limitation on the utility model. The features limited by "first" and "second" can be explicitly or implicitly included one or more features. In the description of the utility model, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0021] In the description of the utility model, it needs to be explained that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0022] As shown in Figure 1 A condenser, comprising a shell 1. The upper and lower ends of the shell 1 are respectively provided with shell inlet 5 and shell outlet 6. The cooled liquid enters from the upper shell inlet 5 and flows in the vertical direction to the shell outlet 6.

[0023] The shell 1 is provided with a condenser pipe assembly, which comprises first condenser coil 2 and second condenser coil 3 arranged at intervals. The second condenser coil 3 is located on the inner side of the first condenser coil 2, and the flow resistance pipe 4 is arranged in the vertical direction. The inner side of the second condenser coil 3 is provided with the flow resistance pipe 4. According to the demand, multiple stages of condenser coils can be set, which is not limited to the two stages of condenser coils in the embodiment.

[0024] The interval between the inner wall of the shell 1 and the outer side of the first condensing coil 2 is equal to the interval between the outer side of the second condensing coil 3 and the inner side of the first condensing coil 2. The interval between the outer side of the flow resistor 4 and the inner side of the second condensing coil 3 is equal to the interval between the outer side of the second condensing coil 3 and the inner side of the first condensing coil 2. The flow resistor 4 can prevent the short circuit of the cooled gas in the shell. The inner wall of the shell 1, the first condensing coil 2, the second condensing coil 3 and the flow resistor 4 are arranged at equal intervals, so that the gas flow can pass through the full diameter in the shell, and the phenomenon of gas flow short circuit is avoided, so that the heat exchange area is effectively ensured, and the heat exchange efficiency of the condenser is high.

[0025] The first condensing coil 2 and the second condensing coil 3 are arranged in the same direction or in opposite directions. The first condensing coil 2 and the second condensing coil 3 can be selected according to requirements.

[0026] The upper end of the first condensing coil 2 and the second condensing coil 3 is connected with the tube outlet pipe 7, and the lower end is connected with the tube inlet pipe 8. The anti-freezing liquid is circulated in the tube, and the anti-freezing liquid still maintains the flowability at low temperature, so that the circulating refrigerant is not frozen in the pipe at low temperature. The refrigerant enters from the lower tube inlet pipe 8, flows from the lower end to the upper end along the first condensing coil 2 and the second condensing coil 3, and then flows out from the tube outlet pipe 7. The refrigerant can be arranged at a very low temperature, so that the gaseous state of the gas to be cooled in the shell can be effectively collected to form a liquid state, and a very high organic solvent collection rate (the collection rate can be more than 98%) is achieved. In addition, the arrangement structure is also convenient for cleaning, and there is almost no residue in the inside.

[0027] The outer wall of the shell 1 is also provided with a mounting support 9 for fixing the condenser on a rack. A plurality of groups can be arranged on the same side, or a plurality of groups can be symmetrically distributed, or a plurality of groups can be circumferentially distributed. The specific installation scene is reasonably selected.

[0028] An observation lens 10 is arranged on the surface of the shell 1. The observation lens 10 is used for observing the icing condition of the outer surface of the tube and the dripping condition of the condensing recovery liquid drops. The state of the condenser can be observed at any time, and manual intervention can be performed in time when an abnormality occurs.

[0029] In summary, the condenser can ensure that the gaseous state to be cooled is completely condensed to form a liquid state, and the condensing effect and the organic solvent collection rate are improved.

[0030] According to the ideal embodiment of the utility model, the related personnel can make various changes and modifications without deviating from the technical idea of the utility model. The technical scope of the utility model is not limited to the content in the specification, and the technical scope must be determined according to the claims.

Claims

1. A condenser comprising a shell (1), a shell side inlet (5) and a shell side outlet (6) are arranged at the upper and lower ends of the shell (1) respectively, characterized in that, The shell (1) is internally provided with a condensing pipe assembly, which comprises first and second condensing coils (2, 3) arranged at intervals, the second condensing coil (3) being located at the inner side of the first condensing coil (2), and a flow resistance pipe (4) being arranged at the inner side of the second condensing coil (3), the interval between the inner wall of the shell (1) and the outer side of the first condensing coil (2) being equal to the interval between the outer side of the second condensing coil (3) and the inner side of the first condensing coil (2), and the interval between the outer side of the flow resistance pipe (4) and the inner side of the second condensing coil (3) being equal to the interval between the outer side of the second condensing coil and the inner side of the first condensing coil (2).

2. The condenser according to claim 1, wherein The first and second condensing coils (2, 3) have the same or opposite rotation directions.

3. The condenser of claim 2, wherein, The upper ends of the first and second condensing coils (2, 3) are connected to an outlet pipe (7), and the lower ends are connected to an inlet pipe (8).

4. The condenser of claim 1, wherein The flow resistance pipe (4) is arranged in the vertical direction.

5. The condenser of claim 1, wherein An observation lens (10) is arranged on the surface of the shell (1).

6. The condenser of claim 5, wherein, The outer wall of the shell (1) is further provided with a mounting support (9).

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