Condenser applied to organic solvent recovery
Through the design of flowing within the refrigerant pipe flow and flowing within the shell in the condenser, the problem of low organic solvent recovery rate is solved, and efficient organic solvent recovery effect is achieved.
Patent Information
- Application Number
- CN202422258710.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-13
- Publication Date
- 2025-07-11
- Estimated Expiration
- 2034-09-13
AI Technical Summary
During the organic solvent recovery process of existing condensers, there are problems such as water freezing blocking the pipeline and insufficient heat exchange area, resulting in low organic solvent recovery.
A condenser structure is designed to allow the refrigerant to flow within the pipe and the gaseous organic solvent to flow within the shell. By uniformly arranging serrated heat exchange tubes and antifreeze protection, the temperature of the refrigerant is ensured to adjust, avoid water freezing, and increase the heat exchange area.
An efficient organic solvent recovery rate is achieved, reaching more than 98%, avoiding pipeline freezing and air flow short circuit, ensuring that the gaseous state is completely condensed into liquid state.
Smart Images
Figure CN223091069U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of organic solvent condensation recovery, and in particular relates to a condenser used for organic solvent recovery. Background Art
[0002] A condenser is a heat exchanger that is usually used to condense steam or gas into liquid. Its main working principle is to use the heat transfer effect when a refrigerant (such as cold water or coolant) comes into contact with hot steam or gas to transfer heat from the steam or gas and condense it into liquid.
[0003] Conventional wound tube heat exchangers, coil heat exchangers, and shell-and-tube heat exchangers basically have the refrigerant go through the shell side, and the gaseous part that needs to be cooled goes through the tube side. However, this type of heat exchanger cannot be used in organic solvent recovery conditions. Because organic solvents have low boiling points and even lower melting points, and because organic solvents contain a small amount of water, and this type of heat exchanger has a refrigerant temperature below 0 degrees, the water contained in the organic solvent will freeze in the capillary tube, thereby blocking the internal channel of the capillary tube, and the organic solvent is not cooled down to form a liquid. Over time, in severe cases, the pipeline will be directly frozen.
[0004] If the two are interchanged, the refrigerant goes through the tube side and the gaseous part to be cooled goes through the shell side. Although the problem of water freezing in the capillary tubes can be solved, the heat exchange area is far from meeting the requirements, so the condensation effect is still not ideal and the recovery rate of organic solvents is still very low. Utility Model Content
[0005] In order to solve the above technical problems, the utility model provides a condenser used for organic solvent recovery. Refrigerant flows in the tube side of the condenser, and gas to be cooled flows in the shell side. The temperature of the refrigerant can be set according to actual needs, thereby ensuring that the gas to be cooled in the shell side is completely collected and formed into a liquid, thereby achieving an extremely high organic solvent collection rate.
[0006] The utility model provides a condenser used for recovering an organic solvent, comprising:
[0007] The cylinder is a hollow structure, and gas inlets and outlets are respectively arranged at both ends of the length direction of the cylinder. A plurality of heat exchange tubes are arranged in the cylinder, and a tube-side inlet and a tube-side outlet are arranged on the cylinder. One ends of the plurality of heat exchange tubes are connected to the tube-side inlet, and the other ends of the plurality of heat exchange tubes are connected to the tube-side outlet.
[0008] Furthermore, in order to increase the length of a plurality of heat exchange tubes, the tube side inlet is close to one of the gas inlets and outlets, and the tube side outlet is close to the other gas inlet and outlet.
[0009] Further, in order to enable the gas to be uniformly cooled within the cylinder body, several of the heat exchange tubes are uniformly spaced along the length direction of the cylinder body.
[0010] Further, in order to increase the heat exchange area, each heat exchange tube is serrated.
[0011] Further, in order to prevent the pipeline from being frozen, antifreeze is provided in several of the heat exchange tubes.
[0012] Further, one of the gaseous outlets is an eccentric reducer. One side of the eccentric reducer extends along the cylinder body, and the other side of the eccentric reducer converges inward along the cylinder body. When the condenser is placed obliquely, it is convenient for the condensate to flow out.
[0013] The beneficial effects of the present utility model are as follows:
[0014] The present utility model is applied to a condenser for organic solvent recovery. The refrigerant flows through the tube side of the condenser, and the gas to be cooled flows through the shell side. The temperature of the refrigerant can be set according to actual needs. Moreover, the heat exchange tubes in the shell side are equally distributed proportionally, and the distances between the heat exchange tubes are basically the same. Therefore, there will be no phenomenon of air flow short circuit, ensuring that all the gas to be cooled in the shell side is collected and formed into a liquid state, achieving a very high organic solvent collection rate.
[0015] In order to make the above objects, features, and advantages of the present utility model more obvious and understandable, the following specifically gives preferred embodiments and, in conjunction with the attached drawings, makes a detailed description as follows. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] In order to more clearly illustrate the specific embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the following drawings are some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.
[0017] Figure 1 It is a schematic structural diagram of the condenser of the present utility model applied to organic solvent recovery;
[0018] Figure 2 It is a schematic diagram of the first usage mode of the condenser of the present utility model applied to organic solvent recovery;
[0019] Figure 3 It is a schematic diagram of the second usage mode of the condenser of the present utility model applied to organic solvent recovery;
[0020] Figure 4 It is a schematic diagram of the third usage mode of the condenser of the present utility model applied to organic solvent recovery;
[0021] Figure 5 This is a schematic diagram of the fourth usage mode of the condenser applied to the recovery of organic solvents in the present utility model.
[0022] In the figure:
[0023] 1. Cylinder body; 2. Gas inlet and outlet; 3. Heat exchange tubes; 4. Tube side inlet; 5. Tube side outlet; 6. Eccentric reducer. Specific embodiments
[0024] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Apparently, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.
[0025] As Figures 1 to 5 shown, the present utility model provides a condenser applied to the recovery of organic solvents, including:
[0026] A cylinder body 1, the cylinder body 1 is a hollow structure, and gaseous inlets and outlets 2 are respectively provided at both ends in the length direction of the cylinder body 1. A plurality of heat exchange tubes 3 are provided inside the cylinder body 1, and a tube side inlet 4 and a tube side outlet 5 are provided on the cylinder body 1. One ends of the plurality of heat exchange tubes 3 are all connected to the tube side inlet 4, and the other ends of the plurality of heat exchange tubes 3 are all connected to the tube side outlet 5.
[0027] The tube side inlet 4 is close to one of the gaseous inlets and outlets 2, and the tube side outlet 5 is close to the other gaseous inlet and outlet 2. Let one of the gaseous inlets and outlets 2 be N1, and the other gaseous inlet and outlet 2 be N2.
[0028] The plurality of heat exchange tubes 3 are uniformly spaced along the length direction of the cylinder body 1, and the distances between the heat exchange tubes 3 are all basically the same, and there will be no phenomenon of air flow short circuit, so as to ensure that the gas to be cooled in the shell side is all collected and formed into a liquid, achieving a very high collection rate of organic solvents.
[0029] In order to increase the heat exchange area, each heat exchange tube 3 is serrated.
[0030] Antifreeze is provided in the plurality of heat exchange tubes 3, and the tube side is filled with antifreeze to ensure that the circulating refrigerant will not freeze in the pipeline at low temperatures.
[0031] One of the gaseous outlets is an eccentric reducer 6. One side of the eccentric reducer extends along the cylinder body 1, and the other side of the eccentric reducer converges inward along the cylinder body 1. When the condenser is placed obliquely, it is convenient for the condensate to flow out.
[0032] Usage mode one, as Figure 2As shown:
[0033] The condenser is installed vertically, and a buffer tank is arranged below the condenser to collect the liquid organic solvent. N1 is the gas inlet, N2 is the gas outlet. The organic solvent to be cooled flows through the shell side. The liquid droplets condensed by passing through the heat exchange tube 3 enter the buffer tank along the gas flow direction. Since the condenser is installed vertically, the condensed liquid droplets inside can be self-drained.
[0034] Usage method two, as Figure 3 shown:
[0035] The condenser is installed vertically, and a buffer tank is arranged below the condenser to collect the liquid organic solvent. N1 is the gas outlet, N2 is the gas inlet. The organic solvent to be cooled flows through the shell side. The liquid droplets condensed by passing through the heat exchange tube 3, as the droplets grow larger, the self-weight of the droplets increases and they overcome the air resistance and drip down, entering the buffer tank against the gas flow direction. Since the condenser is installed vertically, the condensed liquid droplets inside can be self-drained.
[0036] The organic solvent flowing through the shell side has effective heat exchange with the uniformly distributed heat exchange tubes, and the refrigerant is set at a relatively low temperature. Therefore, a large amount of the organic solvent flowing through the shell side is condensed into a liquid state and collected.
[0037] Usage method three, as Figure 4 shown:
[0038] The condenser is installed obliquely, and a buffer tank is arranged below the condenser to collect the liquid organic solvent. N1 is the gas inlet, N2 is the gas outlet. The organic solvent to be cooled flows through the shell side. The liquid droplets condensed by passing through the heat exchange tube 3 enter the buffer tank along the gas flow direction. To consider self-draining inside, an eccentric reducer 6 is used at N2, so as to ensure that the inside can be completely self-drained.
[0039] Usage method four, as Figure 5 shown:
[0040] The condenser is installed obliquely, and a buffer tank is arranged below the condenser to collect the liquid organic solvent. N1 is the gas outlet, N2 is the gas inlet. The organic solvent to be cooled flows through the shell side. The liquid droplets condensed by passing through the heat exchange tube 3, as the droplets grow larger, the self-weight of the droplets increases and they overcome the air resistance and drip down, entering the buffer tank against the gas flow direction. To consider self-draining inside, an eccentric reducer 6 is used at N2, so as to ensure that the inside can be completely self-drained.
[0041] The organic solvent flowing through the shell side has effective heat exchange with the uniformly distributed heat exchange tubes, and the refrigerant is set at a relatively low temperature. Therefore, a large amount of the organic solvent flowing through the shell side is condensed into a liquid state and collected.
[0042] The condenser of the present utility model is applied to the recovery of organic solvents. The refrigerant flows through the tube side of the condenser, and the gaseous state to be cooled flows through the shell side. The temperature of the refrigerant can be set according to actual needs, and the heat exchange tubes in the shell side are evenly distributed in equal proportion, and the distance between each heat exchange tube is basically the same. Therefore, there will be no phenomenon of air flow short circuit, so as to ensure that the gaseous state to be cooled in the shell side is completely collected and formed into a liquid state, achieving an extremely high collection rate of organic solvents, and the collection rate can reach more than 98%.
[0043] Each device selected in this application is a general standard part or a component known to those skilled in the art, and its structure and principle can be known to those skilled in the art through technical manuals or obtained through conventional experimental methods.
[0044] In the description of the embodiments of the present utility model, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.
[0045] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present 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, and therefore cannot be understood as a limitation to the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.
[0046] Based on the above inspiration from the ideal embodiments of the present utility model, through the above description, relevant staff can completely make various changes and modifications without departing from the technical idea of the present utility model. The technical scope of the present utility model is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.
Claims
1. A condenser applied to the recovery of organic solvents, characterized in that, Comprising: A cylinder body (1), the cylinder body (1) being of a hollow structure, with gaseous inlets and outlets (2) provided at both ends of the cylinder body (1) in the length direction. A number of heat exchange tubes (3) are provided inside the cylinder body (1). A tube side inlet (4) and a tube side outlet (5) are provided on the cylinder body (1). One ends of a number of the heat exchange tubes (3) are all connected to the tube side inlet (4), and the other ends of a number of the heat exchange tubes (3) are all connected to the tube side outlet (5).
2. The condenser applied to organic solvent recovery according to claim 1, characterized in that, The tube side inlet (4) is close to one of the gaseous inlets and outlets (2), and the tube side outlet (5) is close to the other gaseous inlet and outlet (2).
3. The condenser for organic solvent recovery according to claim 1, characterized in that, A number of the heat exchange tubes (3) are evenly spaced along the length direction of the cylinder body (1).
4. The condenser for organic solvent recovery according to claim 3, characterized in that, Each heat exchange tube (3) is serrated.
5. The condenser applied to the recovery of organic solvents according to claim 3, wherein, Antifreeze is provided inside a number of the heat exchange tubes (3).
6. The condenser applied to organic solvent recovery according to claim 1, wherein One of the gaseous outlets is an eccentric reducer (6). One side of the eccentric reducer extends along the cylinder body (1), and the other side of the eccentric reducer converges inward along the cylinder body (1).