Heat energy recovery system of solvent cleaning machine

Abstract

The utility model discloses a heat energy recovery system of a solvent cleaning machine, and relates to the technical field of cleaning machines. The heat energy recovery system of the solvent cleaning machine comprises a distiller, a heat exchanger and a heat exchanger, one end of the first pipeline is communicated with the top of the distiller; the cleaning tank is communicated with the other end of the first pipeline; one end of the second pipeline is communicated with the top of the cleaning tank; one end of the third pipeline is communicated with the bottom of the cleaning tank; the input end of the condenser is communicated with the other end of the second pipeline; and one end of the fourth pipeline is communicated with the output end of the condenser, and is communicated with the other end of the third pipeline. The vacuum solvent cleaning machine solves the problems that due to the fact that a vacuum solvent cleaning machine on the market lacks an efficient heat energy integration mechanism, heat energy loss is serious, repeated heating energy consumption is high, a cooling system is heavy in load and the like, the process efficiency is affected, and the energy-saving performance of the whole equipment is limited.

Description

Technical Field

[0001] This utility model relates to the field of cleaning machine technology, and in particular to a heat recovery system for a solvent cleaning machine. Background Technology

[0002] Solvent cleaning machines are widely used for surface cleaning of precision parts, electronic components, optical devices and other products. Especially in applications with high cleaning requirements such as oil stains and flux residues, solvent-based cleaning processes have advantages such as high cleaning efficiency and low residue.

[0003] Currently, vacuum solvent cleaning machines on the market suffer from problems such as severe heat loss, high energy consumption from repeated heating, and heavy load on the cooling system due to the lack of an efficient thermal energy integration mechanism. This not only affects process efficiency but also restricts the overall energy-saving performance of the equipment. No effective solution has yet been proposed to address these issues. Utility Model Content

[0004] Purpose of the utility model: To provide a heat recovery system for a solvent cleaning machine, so as to at least solve one of the problems existing in the prior art.

[0005] Technical solution: A heat recovery system for a solvent cleaning machine, comprising:

[0006] Distillation apparatus;

[0007] The first pipeline has one end connected to the top of the distiller;

[0008] The cleaning tank is connected to the other end of the first pipeline;

[0009] The second pipeline is connected at one end to the top of the cleaning tank;

[0010] The third pipeline has one end connected to the bottom of the cleaning tank;

[0011] The condenser has its inlet end connected to the other end of the second pipeline;

[0012] The fourth pipeline is connected at one end to the output end of the condenser and at the other end of the third pipeline;

[0013] A liquid buffer tank, the inlet of which is connected to the other end of the fourth pipeline; and

[0014] A vacuum interlayer is disposed on the outer surface of the cleaning tank;

[0015] The cleaning tank is heated by pre-setting a vacuum jacket on the outer surface of the cleaning tank and transporting the high-temperature solvent vapor generated by the distiller into the vacuum jacket through the first pipeline.

[0016] Preferably, the system also includes a fifth pipeline, one end of which is connected to the output end of the liquid buffer tank.

[0017] Preferably, the other end of the fifth pipeline is connected to the liquid delivery pump.

[0018] Preferably, the output end of the liquid delivery pump is connected to an external device through a sixth pipeline.

[0019] Preferably, one end of the first pipeline is connected to one end of the seventh pipeline, and the other end of the seventh pipeline is connected to the cleaning tank.

[0020] The output ends of the first pipeline and the seventh pipeline are symmetrically arranged on both sides of the cleaning tank.

[0021] Preferably, a first junction node is formed at the junction of the first pipeline and the seventh pipeline, and a second junction node is formed at the junction of the third pipeline and the fourth pipeline.

[0022] Preferably, a spiral guide plate is provided inside the vacuum interlayer.

[0023] Preferably, the outer surface of the vacuum interlayer is provided with a heat insulation layer.

[0024] Preferably, the inner surface of the vacuum interlayer is coated with a metal heat-reflective film.

[0025] Preferably, the vacuum interlayer is cylindrical.

[0026] Beneficial effects: In this embodiment, a vacuum jacket is added. A vacuum jacket is pre-installed on the outer surface of the cleaning tank, and the high-temperature solvent vapor generated by the distiller is transported to the vacuum jacket through the first pipeline to heat the cleaning tank. This achieves the purpose of heating the cleaning tank, thereby improving the thermal energy utilization rate and simplifying the structure. It also solves the problems of serious heat loss, high energy consumption of repeated heating, and heavy load on the cooling system caused by the lack of an efficient thermal energy integration mechanism in the vacuum solvent cleaning machine on the market. These problems not only affect the process efficiency but also restrict the overall energy-saving performance of the equipment. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the heat recovery system of the solvent cleaning machine of this utility model; and

[0028] Figure 2 This is a schematic diagram of the heat recovery system of another solvent cleaning machine according to this utility model.

[0029] The attached figures are labeled as follows:

[0030] 10. Dispenser;

[0031] 20. First pipeline;

[0032] 30. Cleaning tank;

[0033] 40. Second pipeline;

[0034] 50. Third pipeline;

[0035] 60. Condenser;

[0036] 70. Fourth pipeline;

[0037] 80. Liquid buffer tank;

[0038] 90. Vacuum interlayer;

[0039] 100. Fifth pipeline;

[0040] 110. Liquid delivery pump;

[0041] 120. Sixth pipeline;

[0042] 130. Seventh pipeline. Detailed Implementation

[0043] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0044] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this application described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0045] Furthermore, the terms "installation," "setup," "equipped with," "connection," "linking," and "socketing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this utility model based on the specific circumstances.

[0046] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0047] like Figure 1-2 As shown, this application relates to a heat recovery system for a solvent cleaning machine. The heat recovery system includes a distiller 10, which is used to heat and evaporate the contaminated solvent during the cleaning process, separating solvent vapor; it enables the reuse of the cleaning solution, improves environmental performance, and saves raw materials.

[0048] The first pipeline 20 is connected at one end to the top of the distiller 10; it can achieve a good connection effect, thereby ensuring the delivery of the medium.

[0049] The cleaning tank 30 is connected to the other end of the first pipeline 20; the cleaning tank 30 is the main reaction chamber that carries the parts to be cleaned and the cleaning solvent.

[0050] The second pipeline 40 is connected at one end to the top of the cleaning tank 30; it can achieve a good connection effect, thereby ensuring the delivery of the medium.

[0051] The third pipeline 50 is connected at one end to the bottom of the cleaning tank 30; it can achieve a good connection effect, thereby ensuring the delivery of the medium.

[0052] The condenser 60 has its inlet end connected to the other end of the second pipe 40; it can achieve a good condensation effect, thereby forming a new condensate.

[0053] The fourth pipe 70 is connected at one end to the output end of the condenser 60 and at the other end of the third pipe 50; the fourth pipe 70 combines the solvent liquid condensed by the condenser 60 with the liquid discharged from the third pipe 50 at the bottom of the vacuum jacket 90 and introduces them together into the liquid buffer tank 80.

[0054] The liquid buffer tank 80 has its input end connected to the other end of the fourth pipeline 70; the liquid buffer tank 80 receives all the new liquid solvent as a backup liquid source for the next cleaning of the cleaning system; it can realize a closed-loop recycling mechanism of the cleaning system; and reduce the frequency of manual liquid addition and improve the level of system automation.

[0055] A vacuum interlayer 90 is disposed on the outer surface of the cleaning tank 30; the vacuum interlayer 90 is a sealed interlayer space disposed on the outer surface of the cleaning tank 30, which is filled with solvent vapor after being evacuated.

[0056] Specifically, a vacuum jacket 90 is pre-installed on the outer surface of the cleaning tank 30, and the high-temperature solvent vapor generated by the distiller 10 is transported to the vacuum jacket 90 through the first pipeline 20 to heat the cleaning tank 30. By adding a vacuum jacket 90 to the outer surface of the cleaning tank 30, the high-temperature solvent vapor evaporated from the distiller 10 is preferentially introduced into the vacuum jacket 90 of the cleaning tank 30. The high-temperature steam heats the cleaning tank 30, and at the same time, a portion of the solvent vapor is condensed into clean solvent liquid, which flows into a new liquid buffer tank through a pipeline. The uncondensed solvent vapor is introduced into an external condenser 60 through a steam pipeline at the top of the jacket to continue to be condensed into clean solvent liquid and flow into the new liquid buffer tank.

[0057] This application addresses the problem that existing vacuum solvent cleaning machines have a single-layer cleaning tank (30 body). In standby mode or during extended cleaning pauses, the temperature of the cleaning tank (30 body) drops rapidly, significantly prolonging the heating time for the next cleaning cycle, reducing cleaning speed, and requiring substantial energy consumption for heating the tank. Furthermore, when the cleaning tank (30 body) is at a low temperature, poor vacuum drying can easily occur, affecting cleaning quality. In the distillation process of the cleaning machine's still 10, the high-temperature solvent gas requires external cooling to condense into a liquid solvent. The heat generated during distillation requires external cooling devices (typically chillers), resulting in inefficient utilization and increased energy consumption.

[0058] As can be seen from the above description, this application achieves the following technical effects:

[0059] In this embodiment, a vacuum jacket 90 is added. By pre-setting a vacuum jacket 90 on the outer surface of the cleaning tank 30, the high-temperature solvent vapor generated by the distiller 10 is transported to the vacuum jacket 90 through the first pipeline 20 to heat the cleaning tank 30. This achieves the purpose of heating the cleaning tank 30, thereby improving the thermal energy utilization rate and simplifying the structure. It also solves the problems of serious heat loss, high energy consumption of repeated heating, and heavy load on the cooling system caused by the lack of an efficient thermal energy integration mechanism in the vacuum solvent cleaning machine on the market. This not only affects the process efficiency but also restricts the overall energy-saving performance of the equipment.

[0060] Furthermore, it also includes a fifth pipeline 100, one end of which is connected to the output end of the liquid buffer tank 80. It is understood that the fifth pipeline 100, connected to the output end of the liquid buffer tank 80, is used to draw out the recovered clean solvent, ensuring good flow performance.

[0061] Furthermore, the other end of the fifth pipeline 100 is connected to the liquid delivery pump 110. It is understood that connecting the liquid delivery pump 110 to the other end of the fifth pipeline 100 can improve the delivery capacity of the recovered solvent.

[0062] Furthermore, the output end of the liquid delivery pump 110 is connected to external equipment via a sixth pipeline 120. It is understood that the sixth pipeline 120 connects to the output end of the liquid delivery pump 110, delivering the recovered clean solvent to the external cleaning equipment or the liquid supply port of the cleaning tank 30.

[0063] Furthermore, one end of the first pipe 20 is connected to one end of the seventh pipe 130, and the other end of the seventh pipe 130 is connected to the cleaning tank 30.

[0064] The output ends of the first pipe 20 and the seventh pipe 130 are symmetrically arranged on both sides of the cleaning tank 30. It can be understood that symmetrically arranging the output ends of the first pipe 20 and the seventh pipe 130 on both sides of the cleaning tank 30 forms a double-sided steam guide arrangement; this double-steam guide structure can improve heating uniformity and prevent localized temperature differences.

[0065] Furthermore, a first junction node is formed at the junction of the first pipeline 20 and the seventh pipeline 130, and a second junction node is formed at the junction of the third pipeline 50 and the fourth pipeline 70. It can be understood that the first junction node between the first pipeline 20 and the seventh pipeline 130 enables multiple channels from a single source; the second junction node formed by the confluence of the third and fourth pipelines 70 is used to guide condensate from different sources to the liquid buffer tank 80.

[0066] Furthermore, a spiral guide plate is provided within the vacuum interlayer 90. This guide plate can guide high-temperature solvent vapor to flow uniformly along the spiral path of the interlayer, thereby further improving the utilization rate of thermal energy.

[0067] Furthermore, the outer surface of the vacuum interlayer 90 is provided with a heat insulation layer. This prevents heat from dissipating outwards, effectively saving heating energy.

[0068] Furthermore, the inner surface of the vacuum interlayer 90 is coated with a metal heat-reflective film. It is understood that the metal heat-reflective film increases the heat absorption rate of the tank surface and improves the overall heat utilization rate by reflecting infrared radiation.

[0069] Furthermore, the vacuum interlayer 90 is cylindrical. It is understood that a cylindrical interlayer structure provides better fit, contributing to equipment sealing and structural stability, and is adaptable to various groove types.

[0070] This application also has the following beneficial effects:

[0071] A portion of the steam heat from the distiller 10 is transferred to the cleaning tank 30, heating it and maintaining it at a stable high temperature. When the workpiece is cleaned in the tank, the cleaning solution is also heated, improving the cleaning effect. Simultaneously, the stable high temperature of the tank significantly enhances vacuum drying efficiency and shortens drying time. Furthermore, compared to the previous method, some of the distillation heat, which previously required external cooling, is now utilized, reducing equipment energy consumption and saving electricity.

[0072] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the specific details of the above embodiments. Within the scope of the technical concept of the present invention, various equivalent transformations can be made to the technical solutions of the present invention, and all such equivalent transformations fall within the protection scope of the present invention.

Claims

1. A heat recovery system for a solvent cleaning machine, characterized in that, include: Distillation apparatus; The first pipeline has one end connected to the top of the distiller; The cleaning tank is connected to the other end of the first pipeline; The second pipeline is connected at one end to the top of the cleaning tank; The third pipeline has one end connected to the bottom of the cleaning tank; The condenser has its inlet end connected to the other end of the second pipeline; The fourth pipeline is connected at one end to the output end of the condenser and at the other end of the third pipeline; A liquid buffer tank, the inlet of which is connected to the other end of the fourth pipeline; and A vacuum interlayer is disposed on the outer surface of the cleaning tank; The cleaning tank is heated by pre-setting a vacuum jacket on the outer surface of the cleaning tank and transporting the high-temperature solvent vapor generated by the distiller into the vacuum jacket through the first pipeline.

2. The heat recovery system for the solvent cleaning machine according to claim 1, characterized in that, Also includes: The fifth pipeline has one end connected to the output end of the liquid buffer tank.

3. The heat recovery system for the solvent cleaning machine according to claim 2, characterized in that, The other end of the fifth pipeline is connected to the liquid delivery pump.

4. The heat recovery system for the solvent cleaning machine according to claim 3, characterized in that, The output end of the liquid delivery pump is connected to external equipment through a sixth pipeline.

5. The heat recovery system for the solvent cleaning machine according to claim 1, characterized in that, The first pipeline is connected to one end of the seventh pipeline, and the other end of the seventh pipeline is connected to the cleaning tank; The output ends of the first pipeline and the seventh pipeline are symmetrically arranged on both sides of the cleaning tank.

6. The heat recovery system for the solvent cleaning machine according to claim 5, characterized in that, The first junction node is formed at the junction of the first pipeline and the seventh pipeline, and the second junction node is formed at the junction of the third pipeline and the fourth pipeline.

7. The heat recovery system for the solvent cleaning machine according to claim 1, characterized in that, A spiral guide plate is provided inside the vacuum interlayer.

8. The heat recovery system for the solvent cleaning machine according to claim 1, characterized in that, The outer surface of the vacuum interlayer is provided with a heat insulation layer.

9. The heat recovery system for the solvent cleaning machine according to claim 1, characterized in that, The inner surface of the vacuum interlayer is coated with a metal heat-reflective film.

10. The heat recovery system for the solvent cleaning machine according to claim 1, characterized in that, The vacuum interlayer is cylindrical.

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