Single-effect vacuum concentrator

Abstract

The utility model discloses a single-effect vacuum concentrator which comprises a heating chamber, an evaporation chamber and a condenser assembly, the middle of the bottom end of the heating chamber is communicated with a liquid pipe, the side wall of the liquid pipe is communicated with a return pipe, the other end of the return pipe is communicated with the evaporation chamber, the top end of the heating chamber is communicated with an air outlet pipe, and the air outlet pipe is communicated with an air inlet pipe. The other end of the air outlet pipe communicates with the side wall of an evaporation chamber, the top end of the evaporation chamber communicates with a connecting pipe, and the other end of the connecting pipe communicates with a condenser assembly. The problems that in the prior art, although a concentrator can accelerate the condensation process and improve the overall efficiency of the device in the using process, liquid is still directly injected into a heating chamber during liquid injection during operation, a preheating device is lacked, the liquid is directly heated, and the heating efficiency is affected are solved. A preheating device is lacked, liquid is directly heated, and the heating efficiency is influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of concentrators, in particular to a single-effect vacuum concentrator. Background Art

[0002] The single-effect external circulation vacuum concentrator is suitable for the recovery of industrial organic solvents (such as alcohol) in traditional Chinese medicine, western medicine, glucose, brewing, starch, oral liquid, food, chemical industry, etc. It is suitable for low-temperature vacuum concentration of heat-sensitive materials with small batches and a wide variety.

[0003] Upon investigation, a single-effect external circulation vacuum concentrator disclosed in the disclosure (announcement) number: CN212998431U was found. This technology discloses "including a heating chamber, an evaporation chamber, a condenser and a liquid receiving tank connected in sequence, the interior of the heating chamber is coaxially provided with an external threaded tube and an internal threaded tube, and a longitudinal tube is provided between the external threaded tube and the internal threaded tube and at the center of the internal threaded tube. The longitudinal tube is connected to the evaporation chamber return pipe, and a linear array of atomizing nozzles is provided on the longitudinal tube. After the gas separated by the evaporation chamber enters the condenser, the drive motor is activated and the transmission blades are activated to blow the gas downward, and the airflow then contacts the condensation plate. Since the condensation plate has a grid structure, the airflow will continue to contact it when passing through, thereby ensuring the efficiency of condensation, while reducing the process of secondary condensation of the gas, accelerating the condensation process, and improving the overall efficiency of the device."

[0004] However, the above-mentioned single-effect external circulation vacuum concentrator has the following disadvantages:

[0005] 1. Although the concentrator in this patent can accelerate the condensation process and improve the overall efficiency of the device during use, when liquid is added during the operation, the liquid is still directly added into the heating chamber. There is no preheating device, and the liquid is directly heated, which affects the heating efficiency.

[0006] In order to solve the above problems, this application proposes a single-effect vacuum concentrator. Utility Model Content

[0007] In response to the problems in the related art, the utility model provides a single-effect vacuum concentrator that can preheat the added liquid and improve the heating efficiency.

[0008] To this end, the specific technical solutions adopted in this utility model are as follows:

[0009] A single-effect vacuum concentrator comprises a heating chamber, an evaporation chamber, and a condenser assembly. The bottom middle portion of the heating chamber is connected to a liquid pipe, the side wall of the liquid pipe is connected to a return pipe, the other end of the return pipe is connected to the evaporation chamber, and a pressure pump is installed in the middle of the return pipe. The top end of the heating chamber is connected to an air outlet pipe, the other end of the air outlet pipe is connected to the side wall of the evaporation chamber, the top end of the evaporation chamber is connected to a connecting pipe, and the other end of the connecting pipe is connected to the condenser assembly.

[0010] The condenser assembly includes a condenser shell, the bottom end of the condenser shell is connected to a liquid receiving tank, a condenser tube device is installed in the inner cavity of the condenser shell, and a preheating tube device is installed in the hollow inner cavity of the condenser tube device.

[0011] As a further solution of the present invention, the condenser tube device includes a condenser tube body, which is installed in the inner cavity of the condenser shell. The bottom right end of the condenser tube body is connected to a water inlet, and the top right end of the condenser tube body is connected to a water outlet. The water inlet and the water outlet both pass through the side wall of the condenser shell.

[0012] As a further solution of the present invention, the preheating tube device includes a preheating tube body, which is installed in the hollow inner cavity of the condensing tube body. The right end of the bottom of the preheating tube body is connected to a liquid outlet, the left end of the liquid outlet is connected to a liquid injection pipe, the other end of the liquid injection pipe is connected to the rear wall of the liquid pipe, an electromagnetic valve is installed on the liquid outlet, and the right end of the top of the preheating tube body is connected to a liquid inlet.

[0013] As a further solution of the present invention, a first control valve is installed on the liquid pipe, and a support column is installed at the bottom end of the heating chamber.

[0014] As a further solution of the present invention, an observation hole is installed on the side wall of the evaporation chamber, and a pressure gauge is installed above the observation hole.

[0015] As a further solution of the present invention, a support frame is installed at the bottom end of the evaporation chamber.

[0016] As a further solution of the present invention, a drain port is connected to the middle of the bottom end of the liquid receiving tank, and a second control valve is installed on the drain port.

[0017] The beneficial effects of the utility model are:

[0018] The utility model cooperates with the heating chamber and condenser assembly set up. When liquid needs to be added during the process, the user sends the liquid into the preheating tube body through the liquid inlet, and then the liquid is preheated in the preheating tube body, and then enters the heating chamber through the liquid injection pipe. In this way, the device can use the waste heat of the steam in the condenser to complete the preheating operation of the added liquid when in use, thereby improving the heating efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 This is a schematic diagram of the overall structure of a single-effect vacuum concentrator according to an embodiment of the present utility model;

[0021] Figure 2 This is a schematic structural diagram of a partial condenser assembly of a single-effect vacuum concentrator according to an embodiment of the present utility model;

[0022] Figure 3 This is a structural schematic diagram of a condenser device of a single-effect vacuum concentrator according to an embodiment of the present utility model;

[0023] Figure 4 This is a structural schematic diagram of a preheating tube device for a single-effect vacuum concentrator according to an embodiment of the present utility model;

[0024] Figure 5 This is a schematic diagram of the coordination of a condenser tube device and a preheating tube device of a single-effect vacuum concentrator according to an embodiment of the present utility model;

[0025] Figure 6 It is a schematic diagram of the overall rear view structure of a single-effect vacuum concentrator according to an embodiment of the utility model.

[0026] In the picture:

[0027] 1. Heating chamber; 2. Evaporation chamber; 4. Liquid pipe; 5. Reflux pipe; 6. Pressure pump; 7. Exhaust pipe; 8. Connecting pipe; 9. Condenser assembly; 10. Condenser shell; 11. Liquid receiving tank; 12. Condenser tube device; 121. Condenser tube body; 122. Water inlet; 123. Water outlet; 13. Preheating tube device; 131. Preheating tube body; 132. Liquid outlet; 133. Liquid injection pipe; 134. Solenoid valve; 135. Liquid inlet; 14. First control valve; 15. Observation hole; 16. Pressure gauge; 17. Support frame; 18. Drain port; 19. Second control valve. DETAILED DESCRIPTION

[0028] To further illustrate each embodiment, the present invention provides drawings, which are part of the disclosure of the present invention and are mainly used to illustrate the embodiments. They can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. By referring to these contents, ordinary technicians in this field should be able to understand other possible implementation methods and the advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0029] According to an embodiment of the present utility model, a single-effect vacuum concentrator is provided.

[0030] Please refer to the instruction manual Figure 1-6According to an embodiment of the present utility model, a single-effect vacuum concentrator includes a heating chamber 1, an evaporation chamber 2 and a condenser assembly 9, the bottom end of the heating chamber 1 is installed with a support column, the middle part of the bottom end of the heating chamber 1 is connected with a liquid pipe 4, the liquid pipe 4 is installed with a first control valve 14, the side wall of the liquid pipe 4 is connected with a return pipe 5, the other end of the return pipe 5 is connected with the evaporation chamber 2, and a pressure pump 6 is installed in the middle position of the return pipe 5, the top end of the heating chamber 1 is connected with an outlet pipe 7, the other end of the outlet pipe 7 is connected with the side wall of the evaporation chamber 2, the top end of the evaporation chamber 2 is connected with a connecting pipe 8, and the other end of the connecting pipe 8 is connected with a condenser assembly 9; the condenser assembly 9 includes a condenser shell 10, the bottom end of the condenser shell 10 is connected with a liquid receiving tank 11, the inner cavity of the condenser shell 10 is installed with a condenser pipe device 12, and the condenser pipe device A preheating tube device 13 is installed in the hollow inner cavity of the condenser shell 12. The condensing tube device 12 includes a condensing tube body 121. The condensing tube body 121 is installed in the inner cavity of the condenser shell 10. The bottom right end of the condensing tube body 121 is connected to a water inlet 122. The top right end of the condensing tube body 121 is connected to a water outlet 123. The water inlet 122 and the water outlet 123 both pass through the side wall of the condenser shell 10. The preheating tube device 13 includes a condensing tube body 121. The preheating tube body 131 is installed in the hollow inner cavity of the condensing tube body 121. The right end of the bottom of the preheating tube body 131 is connected to a liquid outlet 132. The left end of the liquid outlet 132 is connected to a liquid injection pipe 133. The other end of the liquid injection pipe 133 is connected to the rear wall of the liquid pipe 4. A solenoid valve 134 is installed on the liquid outlet 132. The right end of the top of the preheating tube body 131 is connected to a liquid inlet 135. The heating chamber 1 and the condenser assembly 9 are arranged to work together. When liquid needs to be added during the process, the user sends the liquid into the preheating tube body 131 through the liquid inlet 135. The liquid is then preheated in the preheating tube body 131 and then enters the heating chamber 1 through the liquid injection pipe 133. In this way, the device can use the residual heat of the steam in the condenser to complete the preheating of the added liquid when in use, thereby improving the heating efficiency.

[0031] In one embodiment, please refer to the appendix of the specification. Figure 1 and Figure 6 As a further embodiment of the present invention, an observation hole 15 is installed on the side wall of the evaporation chamber 2, a pressure gauge 16 is installed above the observation hole 15, and a support frame 17 is installed at the bottom of the evaporation chamber 2. The observation hole 15 and pressure gauge 16 work together to facilitate the user to detect the operating status of the evaporation chamber 2.

[0032] In one embodiment, please refer to the appendix of the specification. Figure 1 and Figure 6As a further solution of the present invention, the bottom middle part of the liquid receiving tank 11 is connected with a drain port 18, and a second control valve 19 is installed on the drain port 18. The drain port 18 is provided to facilitate emptying the liquid in the liquid receiving tank 11.

[0033] Working process: When in use, first send the liquid into the preheating tube body 131 through the liquid inlet 135, and then enter the heating chamber 1 through the liquid injection pipe 133 connected thereto to complete the first liquid injection operation. Then the heating chamber 1 works, and the steam is sent into the evaporation chamber 2 through the air outlet pipe 7, and then enters the condenser assembly 9 through the connecting pipe 8 at the top of the evaporation chamber 2 to complete the condensation operation. When liquid needs to be added midway, the user sends the liquid into the preheating tube body 131 through the liquid inlet 135, and then the liquid uses the residual heat of the steam in the condenser in the preheating tube body 131 to complete the preheating operation of the added liquid, and then enters the heating chamber 1 through the liquid injection pipe 133, thereby improving the heating efficiency.

[0034] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A single-effect vacuum concentrator comprising a heating chamber (1), an evaporation chamber (2) and a condenser assembly (9), characterized in that: The middle of the bottom end of the heating chamber (1) is connected to a liquid pipe (4), the side wall of the liquid pipe (4) is connected to a return pipe (5), the other end of the return pipe (5) is connected to the evaporation chamber (2), and a pressure pump (6) is installed in the middle of the return pipe (5), the top end of the heating chamber (1) is connected to an air outlet pipe (7), the other end of the air outlet pipe (7) is connected to the side wall of the evaporation chamber (2), the top end of the evaporation chamber (2) is connected to a connecting pipe (8), and the other end of the connecting pipe (8) is connected to a condenser assembly (9); The condenser assembly (9) includes a condenser shell (10), the bottom end of the condenser shell (10) is connected to a liquid receiving tank (11), a condenser tube device (12) is installed in the inner cavity of the condenser shell (10), and a preheating tube device (13) is installed in the hollow inner cavity of the condenser tube device (12).

2. The single-effect vacuum concentrator according to claim 1, characterized in that: The condenser tube device (12) includes a condenser tube body (121), which is installed in the inner cavity of the condenser shell (10), and the bottom right end of the condenser tube body (121) is connected to a water inlet (122), and the top right end of the condenser tube body (121) is connected to a water outlet (123), and the water inlet (122) and the water outlet (123) both pass through the side wall of the condenser shell (10).

3. The single-effect vacuum concentrator according to claim 2, characterized in that: The preheating tube device (13) includes a preheating tube body (131), which is installed in the hollow inner cavity of the condensing tube body (121). The right end of the bottom of the preheating tube body (131) is connected to a liquid outlet (132), and the left end of the liquid outlet (132) is connected to a liquid injection pipe (133). The other end of the liquid injection pipe (133) is connected to the rear wall of the liquid pipe (4). A solenoid valve (134) is installed on the liquid outlet (132), and the right end of the top of the preheating tube body (131) is connected to a liquid inlet (135).

4. The single-effect vacuum concentrator according to claim 1, characterized in that: A first control valve (14) is installed on the liquid pipe (4), and a support column is installed at the bottom end of the heating chamber (1).

5. The single-effect vacuum concentrator according to claim 1, characterized in that: An observation hole (15) is installed on the side wall of the evaporation chamber (2), and a pressure gauge (16) is installed above the observation hole (15).

6. The single-effect vacuum concentrator according to claim 1, characterized in that: A support frame (17) is installed at the bottom end of the evaporation chamber (2).

7. The single-effect vacuum concentrator according to claim 1, characterized in that: The middle portion of the bottom end of the liquid receiving tank (11) is connected to a liquid discharge port (18), and a second control valve (19) is installed on the liquid discharge port (18).

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