Double-effect condenser
The double-effect condenser, with its double-layer coaxial straight sleeve design, solves the technical problems of existing condensers, such as small heat exchange area and difficulty in solvent vapor diffusion after liquefaction. It achieves efficient liquefaction and reduces solvent diffusion, thus promoting environmental protection and healthy chemistry development in chemical engineering laboratories.
Patent Information
- Application Number
- CN202511841867.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-09
- Publication Date
- 2026-03-20
AI Technical Summary
Existing condensers have small heat exchange areas, low solvent vapor liquefaction efficiency, and are prone to diffusion, resulting in significant environmental impact and failing to meet the needs of healthy chemistry development.
The double-effect condenser, which adopts a double-layer coaxial straight sleeve design, includes an external heat exchange tube and an internal heat exchange tube. It achieves efficient heat exchange through integrated connection and reduces environmental impact.
It improves condensation efficiency, reduces diffusion loss of volatile solvents, and promotes environmental protection and healthy chemistry development in chemical engineering laboratories.
Smart Images
Figure CN121702185A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application belongs to the technical field of chemical and chemical engineering experiments, and particularly relates to a double-effect condenser. BACKGROUND
[0002] The condenser is an important component of the experimental equipment with functions of distillation and reflux of solvent liquefaction in the chemical and chemical engineering laboratory. The core function thereof is to convert solvent vapor into liquid phase for separation or recovery through heat exchange between the cooling liquid and the solvent vapor. At present, the commonly used condensers in the laboratory mainly include straight condensers and spherical condensers. The cooling liquid flows in the outer interlayer of the condenser, and the solvent vapor flows in the internal cavity of the condenser. The liquefaction of the solvent vapor is realized through heat exchange between the interlayer inner surface and the cooling liquid. The heat exchange area of this type of condenser is small, and a large amount of volatile solvent may diffuse into the air after long-time use. In order to improve the liquefaction efficiency, a serpentine condenser with a larger heat exchange area can be selected. Because the cooling liquid flows in the serpentine pipe in the cavity, and the solvent vapor flows outside the serpentine pipe, the serpentine condenser has higher solvent liquefaction efficiency, and can effectively reduce the diffusion loss of the volatile solvent. However, the serpentine condenser also belongs to the "single heat exchange surface" condenser, and the heat exchange efficiency thereof is greatly affected by the environment. When the ambient temperature rises, the liquefaction efficiency of the volatile solvent will decrease. Improper use will increase the diffusion loss of the solvent vapor, which not only pollutes the environment, but also has safety hazards, and does not conform to the development concept of "healthy chemistry" in the 21st century.
[0003] At present, some existing technologies have improved the heat exchange efficiency of the condenser by increasing the thickness of the interlayer, increasing the length of the condenser, or setting a spiral flow guide structure. However, none of them has broken through the design concept of "single heat exchange surface", so these improvement schemes do not obviously improve the condensation efficiency of the condenser. SUMMARY
[0004] In order to solve the above technical problems, the present application provides a double-effect condenser. The double-effect condenser provided comprises an integrated design of an outer heat exchange pipe, an inner heat exchange pipe, a cooling liquid inlet and a cooling liquid outlet. The effective benefits of the present application are that the double-effect condenser provided has the advantages of high heat exchange efficiency and small environmental influence, which has important significance for improving the laboratory environment of chemical and chemical engineering and promoting the rapid development of "healthy chemistry".
[0005] To achieve the above purpose, the technical scheme adopted by the present application is as follows:
[0006] A double-effect condenser is provided, comprising an integrated design of an outer heat exchange pipe, an upper connecting port, a lower connecting port, a cooling liquid inlet, a cooling liquid outlet and an inner heat exchange pipe.
[0007] Further, the outer heat exchange tube of the present application is a double-layer coaxial straight sleeve, which can be made of glass, stainless steel or ceramic, preferably glass or stainless steel, and more preferably glass. The outer layer tube and the inner layer tube of the double-layer coaxial straight sleeve are the first layer tube and the second layer tube of the double-effect condenser, respectively. The diameter of the first layer tube is 20-180 mm, preferably 20-100 mm, and more preferably 50 mm. The diameter of the second layer tube is 16-170 mm, preferably 16-90 mm, and more preferably 35 mm.
[0008] Further, the upper connecting port of the present application is a tapered ground glass tube, a glass ball ground port, a glass bowl ground port or a glass flange connecting port coaxially fused at the top of the first layer tube, preferably a tapered ground glass tube or a glass ball ground port, and more preferably a tapered inner ground glass tube, which has a maximum inner diameter of 12-60 mm, preferably 16-40 mm, and more preferably 24 mm.
[0009] Further, the lower connecting port of the present application is a tapered ground glass tube, a glass ball ground port, a glass bowl ground port or a glass flange connecting port coaxially fused at the bottom of the first layer tube, preferably a tapered ground glass tube or a glass ball ground port, and more preferably a tapered outer ground glass tube, which has a maximum outer diameter of 12-60 mm, preferably 16-40 mm, and more preferably 24 mm.
[0010] Further, the cooling liquid inlet of the present application is a straight connecting tube or a pagoda-shaped connecting tube vertically fused at the lower side of the outer wall of the first layer tube, preferably a pagoda-shaped connecting tube, which has an outer diameter of 6-30 mm, preferably 8-20 mm, and more preferably 12 mm.
[0011] Further, the cooling liquid outlet of the present application is a connecting tube vertically fused at the upper side or the lower side of the outer wall of the first layer tube, preferably the upper side. The connecting tube is a straight connecting tube or a pagoda-shaped connecting tube, preferably a pagoda-shaped connecting tube, which has an outer diameter of 6-30 mm, preferably 8-20 mm, and more preferably 12 mm.
[0012] Further, the inner heat exchange tube of the present application is a double-layer coaxial straight sleeve, a single-layer straight tube, a single-layer coiled tube or a single-layer spherical tube coaxial with the outer heat exchange tube, preferably a double-layer coaxial straight tube or a single-layer coiled tube, and more preferably a single-layer coiled tube. The material of the inner heat exchange tube can be glass, stainless steel or ceramic, preferably glass or stainless steel, and more preferably glass.
[0013] Further, the inner heat exchange tube of the present application is a double-layer coaxial straight sleeve, the outer tube and the inner tube are the third layer tube and the fourth layer tube of the double-effect condenser respectively. The third layer tube is closed at the bottom and vertically communicated with the inner wall of the second layer tube at the top; the fourth layer tube is opened at the bottom and vertically passes through the side wall of the first layer tube at the top, and is communicated with the cooling liquid outlet; the outer diameter of the third layer glass tube is 12-160mm, preferably 10-80mm, more preferably 20mm; the outer diameter of the fourth layer glass tube is 6-140mm, preferably 8-70mm, more preferably 12mm.
[0014] Further, the inner heat exchange tube of the present application is a double-layer coaxial straight sleeve, the outer tube and the inner tube are the third layer tube and the fourth layer tube of the double-effect condenser respectively. The third layer tube is closed at the bottom and vertically communicated with the inner wall of the second layer tube at the top; the fourth layer tube is opened at the bottom and vertically passes through the side wall of the first layer tube at the top, and is communicated with the cooling liquid outlet; the outer diameter of the third layer glass tube is 12-160mm, preferably 10-80mm, more preferably 20mm; the outer diameter of the fourth layer glass tube is 6-140mm, preferably 8-70mm, more preferably 12mm. BRIEF DESCRIPTION OF DRAWINGS
[0015] In order to more clearly illustrate the technical solutions of the present application, the following will briefly introduce the drawings needed to be used in the examples and application examples. Obviously, the drawings described in the following are part of the embodiments of the present application, and other drawings can also be derived by the related skilled in the art without any creative effort.
[0016] Fig. 1 is a structural schematic diagram of a double-effect condenser provided by the present application;
[0017] Fig. 2 is a structural schematic diagram of a double-effect condenser provided by the present application;
[0018] Fig. 3 is a structural schematic diagram of a double-effect condenser provided by the present application;
[0019] Figs. 1-3 Legend: 100: outer heat exchange tube; 110: first layer tube; 120: second layer tube; 200: upper connecting port; 300: lower connecting port; 400: cooling liquid inlet; 500: cooling liquid outlet; 600: inner heat exchange tube; 610: third layer tube; 620: fourth layer tube; 630: single-wall straight tube; 640: single-wall spiral tube. DETAILED DESCRIPTION
[0020] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some, but not all, embodiments of this invention. Other embodiments obtained by those skilled in the art based on the embodiments provided by this invention without creative effort are all within the protection scope of this invention.
[0021] In the description of this invention, it should be noted that, unless otherwise explicitly specified or limited, terms such as "connection" and "connection" should be interpreted broadly, referring to fixed or integrated connections based on the properties of glass materials; these connections can be direct, indirect through an intermediate medium, or through the connection of fluid channels within two components; directional terms and positional relationship terms such as "upper," "lower," "top," "bottom," "side," and "inner" are based on the assembly references of the components in the accompanying drawings and various embodiments, and are specifically based on the actual assembly state of the components. Those skilled in the art can understand the actual meaning of the above terms in this invention according to specific application scenarios. Example 1
[0022] like Fig. 1 As shown, a double-effect condenser includes an external heat exchange tube 100, an upper connection port 200, a lower connection port 300, a coolant inlet 400, a coolant outlet 500, and an internal heat exchange tube 600.
[0023] The external heat exchange tube 100 includes a first tube 110 and a second tube 120. The first tube 110 is a glass cylinder with a diameter of 40 mm and a length of 200 mm; the second tube 120 is a glass cylinder with a diameter of 32 mm and a length of 150 mm.
[0024] The upper connection port 200 is a conical ground glass tube with a maximum inner diameter of 29 mm that is fused to the top of the first layer tube 110.
[0025] The lower connection port 300 is a conical ground glass tube with a maximum outer diameter of 34 mm that is fused to the bottom of the first layer tube 110.
[0026] The coolant inlet 400 is a pagoda-shaped connecting pipe with an outer diameter of 12 mm, which is vertically fused to the lower side of the outer wall of the first layer pipe 100.
[0027] The coolant outlet 500 is a pagoda-shaped connecting pipe with an outer diameter of 12 mm, which is vertically fused to the upper side of the outer wall of the first layer pipe 100.
[0028] The internal heat exchange tube 600 includes a coaxial sleeve comprising a third layer tube 610 and a fourth layer tube 620. The third layer tube 610 is a glass cylinder with a diameter of 15 mm and a length of 165 mm, its bottom is closed, and its top is perpendicularly connected to the inner wall of the second layer tube 120; the fourth layer 620 is a glass cylinder with a diameter of 8 mm and a length of 100 mm, its bottom is open inside the bottom of the third layer, and its top perpendicularly passes through the side wall of the first layer tube 110, communicating with the coolant outlet 500. Example 2
[0029] like Fig. 2 As shown, a double-effect condenser includes an external heat exchange tube 100, an upper connection port 200, a lower connection port 300, a coolant inlet 400, a coolant outlet 500, and an internal heat exchange tube 600.
[0030] The external heat exchange tube 100 includes a first tube 110 and a second tube 120. The first tube 110 is a glass cylinder with a diameter of 40 mm and a length of 200 mm; the second tube 120 is a glass cylinder with a diameter of 32 mm and a length of 150 mm.
[0031] The upper connection port 200 is a conical ground glass tube with a maximum inner diameter of 29 mm that is fused to the top of the first layer tube 110.
[0032] The lower connection port 300 is a conical ground glass tube with a maximum outer diameter of 34 mm that is fused to the bottom of the first layer tube 110.
[0033] The coolant inlet 400 and coolant outlet 500 are pagoda-shaped connecting pipes with an outer diameter of 12 mm, which are vertically fused to the lower side of the outer wall of the first layer pipe 100.
[0034] The internal heat exchange tube 600 is a single-layer glass tube with a diameter of 15 mm and a length of 165 mm. Its top is vertically connected to the side wall of the second layer tube 120, and its bottom is vertically connected to the coolant outlet 500 through the side wall of the first layer tube 110. Example 3
[0035] like Fig. 3 As shown, a double-effect condenser includes an external heat exchange tube 100, an upper connection port 200, a lower connection port 300, a coolant inlet 400, a coolant outlet 500, and an internal heat exchange tube 600.
[0036] The external heat exchange tube 100 includes a first tube 110 and a second tube 120. The first tube 110 is a glass cylinder with a diameter of 40 mm and a length of 200 mm; the second tube 120 is a glass cylinder with a diameter of 32 mm and a length of 150 mm.
[0037] The upper connecting port 200 is a tapered inner ground glass tube with a maximum inner diameter of 29 mm, which is fused on the top of the first layer tube 110.
[0038] The lower connecting port 300 is a tapered outer ground glass tube with a maximum outer diameter of 34 mm, which is fused on the bottom of the first layer tube 110.
[0039] The cooling liquid inlet 400 is a lotus-shaped connecting tube with an outer diameter of 12 mm, which is vertically fused on the lower side of the outer wall of the first layer tube 100.
[0040] The cooling liquid outlet 500 is a lotus-shaped connecting tube with an outer diameter of 12 mm, which is vertically fused on the upper side of the outer wall of the first layer tube 100.
[0041] The inner heat exchange tube 600 is a serpentine tube with a diameter of 8 mm and an effective length of 160 mm, which is composed of a single-walled straight tube 630 and a single-walled spiral tube 640 connected at the bottom, the top of the single-walled straight tube 630 vertically penetrates the side wall of the first layer tube 110 and is connected with the cooling liquid outlet 500, and the top of the single-walled spiral tube 640 is vertically connected with the side wall of the second layer tube 120.
[0042] Finally, it is pointed out that the description of the structure of the double-effect condenser and the above-mentioned embodiments have fully explained that the double-effect condenser provided by the present application can be used in experimental equipment with reflux, distillation and other liquefaction functions in the field of chemical industry. Due to the limited space, the size, model and connection mode of the double-effect condenser involved in the present application cannot be listed one by one, therefore, the above-mentioned embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that the technical solutions recorded in the foregoing embodiments can be modified or some technical features can be replaced by equivalent ones; and these modifications or equivalent replacements do not make the essence of the corresponding technical solutions deviate from the spirit and protection scope of the present application.
Claims
1. A double-effect condenser, characterized in that, It includes an integrated design of external heat exchange pipe, upper connection port, lower connection port, coolant inlet, coolant outlet and internal heat exchange pipe.
2. The double-effect condenser tube according to claim 1, characterized in that, The external heat exchange tube is a double-layer coaxial straight sleeve, and its material can be glass, stainless steel or ceramic, preferably glass or stainless steel, and more preferably glass; the outer tube and the inner tube of the double-layer coaxial straight sleeve are respectively the first layer tube and the second layer tube of the double-effect condenser, the diameter of the first layer tube is 20-180 mm, preferably 20-100 mm, and more preferably 50 mm; the diameter of the second layer tube is 16-170 mm, preferably 16-90 mm, and more preferably 35 mm.
3. A double-effect condenser tube according to claim 1, characterized in that, The upper connection port is a conical ground glass tube, glass ball ground glass tube, glass cup ground glass tube, or glass flange connection port coaxially fused to the top of the first layer tube. It is preferably a conical ground glass tube or glass ball ground glass tube, more preferably a conical inner ground glass tube, with a maximum inner diameter of 12 to 60 mm, preferably 16 to 40 mm, and more preferably 24 mm.
4. A double-effect condenser tube according to claim 3, characterized in that, The lower connection port is a conical ground glass tube, glass ball ground glass tube, glass cup ground glass tube, or glass flange connection port coaxially fused to the bottom of the first layer tube. It is preferably a conical ground glass tube or glass ball ground glass tube, more preferably a conical outer ground glass tube, with a maximum outer diameter of 12-60 mm, preferably 16-40 mm, and more preferably 24 mm.
5. A double-effect condenser tube according to claim 1, characterized in that, The coolant inlet is a straight connecting pipe or a pagoda-shaped connecting pipe vertically fused to the lower side of the outer wall of the first layer pipe, preferably a pagoda-shaped connecting pipe, with an outer diameter of 6 to 30 mm, more preferably 8 to 20 mm, and more preferably 12 mm.
6. A double-effect condenser tube according to claim 1, characterized in that, The coolant outlet is a connecting pipe vertically fused to the upper or lower side of the outer wall of the first layer pipe, preferably the upper side; the connecting pipe is a straight connecting pipe or a pagoda-shaped connecting pipe, preferably a pagoda-shaped connecting pipe, with an outer diameter of 6 to 30 mm, preferably 8 to 20 mm, and more preferably 12 mm.
7. A double-effect condenser tube according to claim 1, characterized in that, The inner heat exchange tube is a double-layer coaxial straight sleeve, a single-layer straight tube, a single-layer serpentine tube, or a single-layer spherical tube that is coaxial with the outer heat exchange tube. It is preferably a double-layer coaxial straight tube or a single-layer serpentine tube, and more preferably a single-layer serpentine tube. Its material can be glass, stainless steel, or ceramic, preferably glass or stainless steel, and more preferably glass.
8. A double-effect condenser tube according to claim 7, characterized in that, When the internal heat exchange tube is a double-layer coaxial straight sleeve, its outer tube and inner tube are respectively the third and fourth layers of the double-effect condenser; the bottom of the third layer tube is closed, and its top is perpendicularly connected to the inner wall of the second layer tube; the bottom of the fourth layer tube is open inside the bottom of the third layer, and its top passes vertically through the side wall of the first layer tube and is connected to the coolant outlet; the outer diameter of the third layer glass tube is 12-160 mm, preferably 10-80 mm, more preferably 20 mm; the outer diameter of the fourth layer glass tube is 6-140 mm, preferably 8-70 mm, more preferably 12 mm.
9. A double-effect condenser tube according to claim 7, characterized in that, When the internal heat exchange tube is a single-layer tube, one end of it is vertically connected to the upper side of the inner wall of the second layer tube, serving as the coolant inlet of the internal heat exchange tube; the other end passes vertically through the side wall of the first layer tube and is connected to the coolant outlet; the diameter of the internal heat exchange tube is 6 to 140 mm, preferably 8 to 70 mm, and more preferably 12 mm.