Multi-effect heat-pressing parallel type energy-saving distilled water preparation system and distilled water machine

Abstract

The present application relates to a kind of multi-effect hot-pressing parallel type energy-saving distilled water preparation system and distilled water machine, and distilled water preparation system includes multi-effect distillation module, hot-pressing distillation module and condenser, multi-effect distillation module and hot-pressing distillation module can produce distilled water, the steam exhaust pipeline of multi-effect distillation module is communicated with the first water inlet pipeline of hot-pressing distillation module by the condenser, so that the steam produced by multi-effect distillation module and the raw water of hot-pressing distillation module heat exchange.Such, multi-effect distillation module and hot-pressing distillation module cooperate operation, so as to effectively utilize the heat of steam, on the one hand, multi-effect distillation module does not need to set up cooling source and can cool the last effect steam, so as to reduce a large amount of energy consumption, on the other hand, the raw water of hot-pressing distillation module is heated due to heat exchange and improves internal energy, so as to reduce the heat energy consumption of external input of second evaporator, further reduce the system energy consumption, so as to reduce the cost of distilled water preparation process.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of medical water preparation, in particular to a multi-effect heat-press parallel type energy-saving distilled water preparation system and a distilled water machine. BACKGROUND

[0002] In the medical industry, a large amount of distilled water is needed for the preparation of injection water. Distilled water is mainly formed by condensation after evaporation of raw water. A common distilled water preparation system is composed of evaporators, condensers and other elements. However, the traditional distilled water preparation system and distilled water machine are difficult to utilize the heat of steam or the cost of steam reuse is high, resulting in high cost of distilled water preparation process. SUMMARY

[0003] Therefore, it is necessary to provide a multi-effect heat-press parallel type energy-saving distilled water preparation system and a distilled water machine to solve the problem that the heat of steam in the distilled water preparation system is difficult to utilize.

[0004] The technical scheme is as follows:

[0005] On the one hand, a multi-effect heat-press parallel type energy-saving distilled water preparation system is provided, which comprises a multi-effect distillation module, a heat-press distillation module and a condenser. The multi-effect distillation module and the heat-press distillation module can both heat raw water by heating steam to produce steam and distilled water. The multi-effect distillation module comprises a steam discharge pipeline, and the heat-press distillation module comprises a first water inlet pipeline. The steam discharge pipeline and the first water inlet pipeline both pass through the condenser to exchange heat between the steam produced by the multi-effect distillation module and the raw water of the heat-press distillation module.

[0006] The technical scheme is as follows:

[0007] In one embodiment, the multi-effect distillation module further comprises an evaporation assembly, a second water inlet pipeline, a distilled water discharge pipeline and a first heat exchanger. The evaporation assembly is in communication with the steam discharge pipeline. One end of the distilled water discharge pipeline is in communication with the evaporation assembly, and the other end of the distilled water discharge pipeline passes through the first heat exchanger. The second water inlet pipeline passes through the first heat exchanger and is in communication with the evaporation assembly to exchange heat between the distilled water produced by the multi-effect distillation module and the raw water of the multi-effect distillation module in the first heat exchanger.

[0008] In one embodiment, the evaporation assembly comprises at least two first evaporators connected in series. Each first evaporator is provided with an inlet and an outlet. The outlet of a first evaporator in series is in communication with the inlet of the next first evaporator.

[0009] In one of the embodiments, the multi-effect distillation module further comprises a preheater, the preheater is in communication with the outlet of the at least one first evaporator, the distillation water discharge pipeline is further in communication with the preheater, and the second water inlet pipeline further passes through the preheater so that the steam produced by the first evaporator in communication with the preheater exchanges heat with the raw material water in the preheater.

[0010] In one of the embodiments, the multi-effect distillation module comprises a first condensate water discharge pipeline and a second heat exchanger, the first condensate water discharge pipeline is used to discharge the condensate water formed by the heating steam of the multi-effect distillation module exchanging heat in the evaporation assembly, one end of the first condensate water discharge pipeline is in communication with the evaporation assembly, and the other end of the first condensate water discharge pipeline passes through the second heat exchanger, and the second water inlet pipeline passes through the second heat exchanger so that the condensate water of the multi-effect distillation module exchanges heat with the raw material water of the multi-effect distillation module in the second heat exchanger.

[0011] In one of the embodiments, the multi-effect distillation module comprises a first condensate water discharge pipeline and a second heat exchanger, the first condensate water discharge pipeline is used to discharge the condensate water formed by the heating steam of the multi-effect distillation module exchanging heat in the evaporation assembly, one end of the first condensate water discharge pipeline is in communication with the evaporation assembly, and the other end of the first condensate water discharge pipeline passes through the second heat exchanger, and the second water inlet pipeline passes through the second heat exchanger so that the condensate water of the multi-effect distillation module exchanges heat with the raw material water of the multi-effect distillation module in the second heat exchanger.

[0012] In one of the embodiments, the thermal pressure distillation module comprises a compressor, a second evaporator, and a steam circulation pipeline, the second evaporator is in communication with the first water inlet pipeline, the second evaporator is provided with a steam inlet and a steam outlet, one end of the steam circulation pipeline is in communication with the steam outlet, the other end of the steam circulation pipeline passes through the compressor and is in communication with the steam inlet, and the compressor is used to compress the steam produced by the second evaporator to increase the pressure of the steam produced by the second evaporator.

[0013] In one of the embodiments, the thermal pressure distillation module comprises a heater, a second condensate water discharge pipeline, and a fourth heat exchanger, the second condensate water discharge pipeline is used to discharge the condensate water formed by the heating steam of the thermal pressure distillation module exchanging heat in the heater, one end of the second condensate water discharge pipeline is in communication with the heater, the other end of the second condensate water discharge pipeline passes through the fourth heat exchanger, and the first water inlet pipeline passes through the fourth heat exchanger so that the condensate water of the thermal pressure distillation module exchanges heat with the raw material water of the thermal pressure distillation module in the fourth heat exchanger.

[0014] In one of the embodiments, the thermal pressure distillation module comprises a second concentrated water discharge pipeline for discharging concentrated water formed after the raw water of the thermal pressure distillation module is evaporated in the second evaporator, one end of the second concentrated water discharge pipeline is communicated with the second evaporator, the other end of the second concentrated water discharge pipeline passes through the fifth heat exchanger, and the first water inlet pipeline passes through the fifth heat exchanger so that the concentrated water of the thermal pressure distillation module and the raw water of the thermal pressure distillation module exchange heat in the fifth heat exchanger.

[0015] In another aspect, a distillation water machine is provided, comprising the multi-effect thermal pressure parallel type energy-saving distillation water preparation system.

[0016] The multi-effect distillation module and the thermal pressure distillation module of the multi-effect thermal pressure parallel type energy-saving distillation water preparation system and the distillation water machine cooperate to operate, the steam discharge pipeline of the multi-effect distillation module is communicated with the first water inlet pipeline of the thermal pressure distillation module through the condenser, so that the steam produced by the multi-effect distillation is cooled by heat exchange, and the raw water of the thermal pressure distillation module is heated by heat exchange, thereby effectively utilizing the heat of the steam. On the one hand, the multi-effect distillation module does not need to additionally set up a cooling source to cool the final steam, thereby reducing a large amount of system energy consumption. On the other hand, the raw water of the thermal pressure distillation module is heated by heat exchange to increase the internal energy, thereby reducing the consumption of external heat energy input by the second evaporator, and further reducing the cost of the distillation water preparation process. BRIEF DESCRIPTION OF DRAWINGS

[0017] The accompanying drawings, which form a part of this application, are included to provide a further understanding of the application and are incorporated in and constitute a part of this application. The embodiments of the application illustrated in the drawings, and their description, are presented to add generic scope to the application.

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the accompanying drawings needed to be used in the embodiment description will be briefly introduced. Obviously, the accompanying drawings in the following description are only some embodiments of the present application, and other accompanying drawings can be obtained by those skilled in the art without any creative effort.

[0019] Figure 1 The system principle diagram of the multi-effect thermal pressure parallel type energy-saving distillation water preparation system of an embodiment of the present application;

[0020] Figure 2 The principle diagram of the multi-effect distillation module of the multi-effect thermal pressure parallel type energy-saving distillation water preparation system of Figure 1

[0021] Figure 3 The principle diagram of the thermal pressure distillation module of the multi-effect thermal pressure parallel type energy-saving distillation water preparation system of Figure 1 The principle diagram of the thermal pressure distillation module of the multi-effect thermal pressure parallel type energy-saving distillation water preparation system of​

[0022] BRIEF DESCRIPTION OF DRAWINGS

[0023] 100, multiple-effect distillation module; 110, second water inlet pipeline; 111, steam discharge pipeline; 112, distilled water discharge pipeline; 1121, first distilled water discharge pipeline; 1122, second distilled water discharge pipeline; 113, first condensed water discharge pipeline; 114, first concentrated water discharge pipeline; 120, evaporation assembly; 121, first evaporator; 130, first heat exchanger; 131, second heat exchanger; 132, third heat exchanger; 140, preheater; 200, thermal pressure distillation module; 210, first water inlet pipeline; 211, second condensed water discharge pipeline; 212, second concentrated water discharge pipeline; 220, compressor; 230, second evaporator; 240, steam circulation pipeline; 250, heater; 260, fourth heat exchanger; 261, fifth heat exchanger; 300, condenser; 400, trap. DETAILED DESCRIPTION

[0024] In order to make the above objectives, features and advantages of the present application more apparent, specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be practiced in a number of different ways beyond the specific embodiments described herein and by one of ordinary skill in the art without departing from the spirit and scope of the present application, and it is therefore intended that all such changes and modifications be included within the scope of the present application.

[0025] As described in the background section, a large amount of distilled water is required in the pharmaceutical industry, which is mainly formed by condensation of raw steam or raw water vapor. A conventional distilled water preparation system generally includes the following steps: raw water enters an evaporation assembly through a water inlet pipeline, the evaporation assembly is heated by an externally introduced heating steam to increase the temperature, the heating steam is cooled to form condensed water after heat exchange with the raw water in the evaporator, and the raw water is evaporated at the same time. The raw water is converted into three parts of material after evaporation, the first part of the raw water is evaporated and condensed to form distilled water, the second part of the raw water is evaporated and not condensed to form secondary steam, and the third part of the raw water is concentrated to form concentrated water due to evaporation of a large amount of water. The heating steam is industrial steam formed by heating of industrial waste water in a heating boiler.

[0026] Currently, common distillation technologies mainly include multi-effect distillation, mechanical vapor recompression distillation (MVR), and thermal vapor recompression distillation (TVR). Among them, the multi-effect distillation is a distillation technology in which secondary steam obtained by evaporation of the previous stage evaporator is used as heating steam of the next stage evaporator. The mechanical vapor recompression distillation is a distillation technology in which a compressor driven by external energy is used to compress and increase the pressure of secondary steam for reuse. The thermal vapor recompression distillation is a distillation technology in which low-pressure secondary steam is compressed and increased in pressure by a small amount of high-pressure steam for reuse. However, for the multi-effect distillation technology, the secondary steam generated by the last-effect evaporator has no next-effect evaporator to use, and a large amount of cooling water is needed to cool the non-condensed secondary steam of the last effect, resulting in high overall energy consumption of the equipment. For the mechanical vapor recompression distillation technology, the equipment investment cost is high, and it is difficult to promote in the entire industry. For the thermal vapor recompression distillation technology, a large amount of high-pressure steam is consumed in the distillation process, and since the steam pressure in the pharmaceutical industry is low, the heat pump can only produce a small amount of high-enthalpy effective steam, so all the produced steam will actually reduce the evaporation temperature of the first-effect evaporator after injection, and thus is difficult to be utilized. Therefore, the traditional three distillation technologies are difficult to utilize the heat of steam or have high cost of steam reuse, resulting in high cost of the distillation water preparation process.

[0027] To solve the above problems, as shown in Figures 1 to 3 In one embodiment, a multi-effect thermal compression parallel energy-saving distillation water preparation system is provided, which includes a multi-effect distillation module 100, a thermal compression distillation module 200, and a condenser 300. The multi-effect distillation module 100 and the thermal compression distillation module 200 can both heat raw water by heating steam to produce steam and distilled water. The multi-effect distillation module 100 includes a steam discharge pipeline 111, and the thermal compression distillation module 200 includes a first water inlet pipeline 210. The steam discharge pipeline 111 and the first water inlet pipeline 210 both pass through the condenser 300 to exchange heat between the steam produced by the multi-effect distillation module 100 and the raw water of the thermal compression distillation module 200.

[0028] The multi-effect distillation module 100 and the hot-press distillation module 200 of the aforementioned multi-effect hot-press parallel energy-saving distillation water preparation system operate in conjunction. The steam exhaust pipe 111 of the multi-effect distillation module is connected to the first water inlet pipe 210 of the hot-press distillation module via the condenser 300. This allows the steam produced by the multi-effect distillation module 100 to exchange heat and cool, while the raw water in the hot-press distillation module 200 exchanges heat and heats up, thus effectively utilizing the heat of the steam. On the one hand, the multi-effect distillation module 100 can cool the last-effect steam without the need for an additional cooling source, reducing a significant amount of system energy consumption. On the other hand, the raw water in the hot-press distillation module 200 increases its internal energy due to heat exchange, thereby reducing the external heat energy consumption of the second evaporator 230, further reducing system energy consumption. In this way, the heat energy of the multi-effect distillation module 100 and the hot-press distillation module 200 is mutually utilized, achieving energy savings of approximately 20% per unit for the multi-effect distillation module 100 and approximately 40% per unit for the hot-press distillation module 200, enabling low-cost production of water for injection. Meanwhile, since both the multi-effect distillation module 100 and the hot-press distillation module 200 can produce distilled water independently, their water production capacities can be matched. Under the condition that the multi-effect distillation module 100 can produce a certain amount of distilled water, the water production requirement of the hot-press distillation module 200 is greatly reduced, making it easier to select a hot-press distillation water machine model with lower energy consumption, thereby effectively reducing the cost of the distilled water preparation process.

[0029] like Figure 2 As shown, in one embodiment, the multi-effect distillation module 100 further includes an evaporation assembly 120, a second water inlet pipe 110, a distilled water outlet pipe 112, and a first heat exchanger 130. The evaporation assembly 120 is connected to the steam outlet pipe 111. One end of the distilled water outlet pipe 112 is connected to the evaporation assembly 120, and the other end of the distilled water outlet pipe 112 passes through the first heat exchanger 130. The second water inlet pipe 120 is connected to the evaporation assembly 120 via the first heat exchanger 130, so that the distilled water produced by the multi-effect distillation module 110 exchanges heat with the raw water of the multi-effect distillation module 110 in the first heat exchanger. In this way, most of the heat of the high-temperature distilled water is exchanged to the raw water of the multi-effect distillation module 100, thereby improving the evaporation efficiency of the multi-effect distillation module 100 and reducing system energy consumption.

[0030] Furthermore, such as Figure 2As shown, the evaporation assembly 120 comprises at least two first evaporators 121 connected in series, each of the first evaporators 121 is provided with an inlet and an outlet, and the outlet of a first evaporator 121 is communicated with the inlet of the next first evaporator 121. In use, steam is evaporated in the plurality of first evaporators 121 to produce distilled water, and the steam produced by the previous first evaporator 121 is supplied to the next first evaporator 121 to heat, thereby gradually increasing the conversion rate of the raw water of the multi-effect distillation module 100. At the same time, since the pressure of the steam gradually decreases in the plurality of first evaporators 121, by adjusting the number of the first evaporators 121 in the evaporation assembly 120, the pressure of the steam output by the last first evaporator 121 can be changed to meet the steam parameter requirements of the thermal pressure distillation module 200.

[0031] Further, as shown, Figure 2 As shown, the multi-effect distillation module 100 further comprises a preheater 140, the preheater 140 is communicated with the outlet of at least one first evaporator 121, the distilled water discharge pipeline 112 is further communicated with the preheater 140, and the second water inlet pipeline 110 further passes through the preheater 140 so that the steam produced by the first evaporator 121 communicated with the preheater 140 exchanges heat with the raw water in the preheater 140. In this way, the high-temperature steam produced by each first evaporator 121 can exchange heat in the preheater 140 to form distilled water, avoiding the steam produced by each first evaporator 121 reaching saturation when entering the next first evaporator 121, thereby facilitating the evaporation of the raw water of the multi-effect distillation module 100. At the same time, most of the heat of the steam is exchanged to the raw water in the heat exchange process, thereby improving the evaporation efficiency of the multi-effect distillation module 100.

[0032] Among them, the distilled water discharge pipeline 112 can comprise a first distilled water discharge pipeline 1121 and a second distilled water discharge pipeline 1122, the first distilled water discharge pipeline 1121 is communicated with the evaporation assembly 120, and the second distilled water discharge pipeline 1122 is communicated with the preheater 140. In this way, the distilled water formed in the evaporation assembly 120 and the distilled water formed in the preheater 140 can be divided into two pipelines, thereby facilitating the control of the distilled water in any one of the pipelines.

[0033] As shown, Figure 2As shown, in one embodiment, the multi-effect distillation module 100 includes a first condensate discharge pipe 113 and a second heat exchanger 131. The first condensate discharge pipe 113 is used to discharge the condensate formed by the heating steam of the multi-effect distillation module 100 exchanging heat with the evaporation assembly 120. One end of the first condensate discharge pipe 113 is connected to the evaporation assembly 120, and the other end of the first condensate discharge pipe 113 passes through the second heat exchanger 131. The second water inlet pipe 110 passes through the second heat exchanger 131 so that the condensate of the multi-effect distillation module 100 and the feed water of the multi-effect distillation module 100 exchange heat in the second heat exchanger 131. In this way, most of the heat of the high-temperature condensate is exchanged to the feed water of the multi-effect distillation module 100, thereby improving the evaporation efficiency of the multi-effect distillation module 100 and reducing system energy consumption. A drain valve 400 may be provided on the first condensate discharge pipe 113 to prevent the heating steam from flowing into the second heat exchanger 131.

[0034] like Figure 2 As shown, in one embodiment, the multi-effect distillation module 100 includes a first concentrated water discharge pipe 114 and a third heat exchanger 132. The first concentrated water discharge pipe 114 is used to discharge the concentrated water formed after the feed water of the multi-effect distillation module 120 is evaporated in the evaporation assembly 120. One end of the first concentrated water discharge pipe 114 is connected to the evaporation assembly 120, and the other end of the first concentrated water discharge pipe 114 passes through the third heat exchanger 132. The second water inlet pipe 110 also passes through the third heat exchanger 132 so that the concentrated water of the multi-effect distillation module 100 and the feed water of the multi-effect distillation module 100 exchange heat in the third heat exchanger 132. In this way, most of the heat of the high-temperature concentrated water is exchanged to the feed water of the multi-effect distillation module 100, thereby improving the evaporation efficiency of the multi-effect distillation module 100 and reducing system energy consumption.

[0035] like Figure 3 As shown, in one embodiment, the thermostatic distillation module 200 includes a compressor 220, a second evaporator 230, and a steam circulation pipeline 240. The second evaporator 230 is connected to a first water inlet pipeline 210 and has a steam inlet and a steam outlet. One end of the steam circulation pipeline 240 is connected to the steam outlet, and the other end of the steam circulation pipeline 240 is connected to the steam inlet after passing through the compressor 220. The compressor 220 is used to compress the steam produced by the second evaporator 230 to increase the pressure of the steam produced by the second evaporator 230. In use, an external power source drives the mechanical compressor 220 to compress the steam produced by the evaporator to a higher pressure, that is, the compressor 220 inputs energy to the steam, so that the steam produced by the second evaporator 230 can be reused. The steam circulates continuously through the steam circulation pipeline 240 and gradually forms distilled water, thus eliminating the need for an additional cooling source and reducing system energy consumption.

[0036] The heat pressure distillation module 200 can be a vertical or horizontal structure, as long as it meets the heat pressure distillation principle and can produce water independently.

[0037] Further, as shown in Figure 3 the heat pressure distillation module 200 includes a heater 250, a second condensed water discharge pipeline 211 for discharging condensed water formed by heat exchange of the heating steam in the heater 250, and a fourth heat exchanger 260. One end of the second condensed water discharge pipeline 211 is in communication with the heater 250, and the other end of the second condensed water discharge pipeline 211 passes through the fourth heat exchanger 260. The first water inlet pipeline 210 passes through the fourth heat exchanger 260 to exchange heat between the condensed water of the heat pressure distillation module 200 and the raw water of the heat pressure distillation module 200 in the fourth heat exchanger 260. When the multi-effect distillation module 100 and the heat pressure distillation module 200 are operated in parallel, the internal energy of the raw water of the heat pressure distillation module 200 is increased after heat exchange with the steam of the multi-effect distillation module 100, so that only a small amount of heating steam is needed to maintain a constant temperature required for evaporation, thereby reducing the consumption of heating steam and the energy consumption of the system. A drain valve 400 can be provided on the second condensed water discharge pipeline 211 to prevent the heating steam from flowing to the fourth heat exchanger 260.

[0038] As shown in Figure 3 in an embodiment, the heat pressure distillation module 200 includes a second concentrated water discharge pipeline 212 for discharging concentrated water formed after evaporation of the raw water of the heat pressure distillation module 200 in the second evaporator 230, and a fifth heat exchanger 261. One end of the second concentrated water discharge pipeline 212 is in communication with the second evaporator 230, and the other end of the second concentrated water discharge pipeline 212 passes through the fifth heat exchanger 261. The first water inlet pipeline 210 passes through the fifth heat exchanger 261 to exchange heat between the concentrated water of the heat pressure distillation module 200 and the raw water of the heat pressure distillation module 200 in the fifth heat exchanger 261. In this way, most of the heat of the high-temperature concentrated water is exchanged to the raw water of the heat pressure distillation module 200, thereby improving the evaporation efficiency of the heat pressure distillation module 200 and reducing the energy consumption of the system. A drain valve 400 can be provided on the second concentrated water discharge pipeline 212 to prevent the steam produced by the second evaporator 230 from flowing to the fifth heat exchanger 261.

[0039] In an embodiment, a distillation water machine is also provided, which includes the multi-effect heat pressure parallel energy-saving distillation water preparation system of any of the above embodiments.

[0040] The multi-effect distillation module 100 of the distiller above cooperates with the thermal pressure distillation module 200 to effectively utilize the heat of the steam, so that the multi-effect distillation module 100 can cool the last-effect steam without additional cooling source, and the consumption of the external input heat energy of the second evaporator 230 in the thermal pressure distillation module 200 is reduced, thereby effectively reducing the energy consumption of the system.

[0041] It should be noted that the multi-effect thermal pressure parallel energy-saving distiller water preparation system and the distiller of the above embodiments are not limited to use in the field of medical water preparation, but can also be used in other occasions that meet the use requirements.

[0042] It should be noted that "a certain body" and "a certain part" can be a part of a "member", that is, "a certain body" and "a certain part" are integrally formed with other parts of the "member"; or it can be a separate member that can be separated from the "other parts of the member", that is, "a certain body" and "a certain part" can be independently manufactured and then combined with the "other parts of the member" to form a whole. The expression of "a certain body" and "a certain part" in the present application is only one embodiment, for the convenience of reading, and is not a limitation on the protection scope of the present application, as long as the above-mentioned features are included and the same effect is understood as the equivalent technical solutions of the present application.

[0043] It should be noted that the components included in the "unit", "component", "mechanism", and "device" of the present application can also be flexibly combined, that is, modular production can be performed according to actual needs to facilitate modular assembly. The division of the above components is only one embodiment, for the convenience of reading, and is not a limitation on the protection scope of the present application, as long as the above-mentioned components are included and the same effect is understood as the equivalent technical solutions of the present application.

[0044] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. The term "and / or" used in the present application includes any and all combinations of one or more related listed items.

[0045] Furthermore, the terms "first", "second", "third", etc. are used herein for descriptive purposes only and are not to be construed as indicating or implying relative importance or a meaningful distinction. It is therefore to be understood that a "first", "second", "third", etc. feature so designated can include, but is not limited to, one or more such features. In the description of the present application, the meaning of "a number of" is at least two, for example, two, three or the like, unless otherwise explicitly specified and limited.

[0046] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood in a broad sense, for example, can be fixed connection, can also be detachable connection, or integral; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0047] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature "above", "over" and "on" the second feature can be that the first feature is directly above or obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "under" and "under" the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0048] It should be noted that when an element is referred to as "fixed to", "provided to", "fixed to" or "arranged to" another element, it can be directly on the other element or there can be a middle element. When an element is considered to be "connected" to another element, it can be directly connected to another element or there can be a middle element. Further, when an element is considered to be "fixedly connected" to another element, the two can be fixed in a detachable manner or fixed in a non-detachable manner, as long as power transmission can be achieved, such as sleeving, clamping, integral forming, welding, etc., which can be achieved in the prior art, and will not be described here. When an element is perpendicular or approximately perpendicular to another element, it means that the ideal state of the two is perpendicular, but due to manufacturing and assembly, there can be a certain vertical error. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and are not the only embodiment. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0049] It should also be understood that, when interpreting the connection relationship or position relationship of elements, although not explicitly described, the connection relationship and position relationship are interpreted to include an error range that should be within an acceptable deviation range of a specific value determined by a person skilled in the art. For example, "about", "approximately", or "substantially" can mean within one or more standard deviations, without limitation.

[0050] The technical features of the above embodiments can be combined in any manner. For brevity, not all possible combinations of the technical features in the above embodiments are described, but as long as the combinations of the technical features do not contradict each other, they should be considered within the scope of the present disclosure.

[0051] The above embodiments only express several implementation manners of the present application, and the description is relatively specific and detailed, but it should not be understood as a limitation on the scope of the patent. It should be pointed out that, for those skilled in the art, several modifications and improvements can be made without departing from the concept of the present application, and these are within the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. A multi-effect thermal pressure parallel type energy-saving distilled water production system, characterized in that, The system comprises a multi-effect distillation module, a thermal pressure distillation module and a condenser, the multi-effect distillation module and the thermal pressure distillation module can heat raw water by heating steam to produce steam and distilled water, the multi-effect distillation module comprises a steam discharge pipeline, the thermal pressure distillation module comprises a first water inlet pipeline, the steam discharge pipeline and the first water inlet pipeline pass through the condenser to exchange heat between the steam produced by the multi-effect distillation module and the raw water of the thermal pressure distillation module in the condenser; The multi-effect distillation module further comprises an evaporation assembly, a second water inlet pipeline, a distilled water discharge pipeline and a first heat exchanger, the evaporation assembly is communicated with the steam discharge pipeline, one end of the distilled water discharge pipeline is communicated with the evaporation assembly, the other end of the distilled water discharge pipeline passes through the first heat exchanger, and the second water inlet pipeline passes through the first heat exchanger and is communicated with the evaporation assembly to exchange heat between the distilled water produced by the multi-effect distillation module and the raw water of the multi-effect distillation module in the first heat exchanger; The multi-effect distillation module comprises a first condensed water discharge pipeline and a second heat exchanger, the first condensed water discharge pipeline is used for discharging condensed water formed by exchanging heat between the heating steam of the multi-effect distillation module and the evaporation assembly, one end of the first condensed water discharge pipeline is communicated with the evaporation assembly, the other end of the first condensed water discharge pipeline passes through the second heat exchanger, and the second water inlet pipeline passes through the second heat exchanger to exchange heat between the condensed water of the multi-effect distillation module and the raw water of the multi-effect distillation module in the second heat exchanger; The multi-effect distillation module comprises a first condensed water discharge pipeline and a second heat exchanger, the first condensed water discharge pipeline is used for discharging condensed water formed by exchanging heat between the heating steam of the multi-effect distillation module and the evaporation assembly, one end of the first condensed water discharge pipeline is communicated with the evaporation assembly, the other end of the first condensed water discharge pipeline passes through the second heat exchanger, and the second water inlet pipeline passes through the second heat exchanger to exchange heat between the condensed water of the multi-effect distillation module and the raw water of the multi-effect distillation module in the second heat exchanger; The thermal pressure distillation module comprises a compressor, a second evaporator and a steam circulation pipeline, the second evaporator is communicated with the first water inlet pipeline, the second evaporator is provided with a steam inlet and a steam outlet, one end of the steam circulation pipeline is communicated with the steam outlet, the other end of the steam circulation pipeline is communicated with the steam inlet after passing through the compressor, and the compressor is used for compressing the steam produced by the second evaporator to increase the pressure of the steam produced by the second evaporator.

2. The multi-effect thermal pressure parallel type energy-saving distillated water producing system according to claim 1, characterized in that, The evaporation assembly comprises at least two first evaporators connected in series, the first evaporators are each provided with a feed inlet and a feed outlet, and the feed outlet of a first evaporator in series is communicated with the feed inlet of a next first evaporator.

3. The multi-effect thermal pressure parallel type energy-saving distillated water producing system according to claim 2, characterized in that, The multi-effect distillation module further comprises a preheater, which is in communication with the outlet of the first evaporator, the distillation water discharge pipeline is also in communication with the preheater, and the second water inlet pipeline also passes through the preheater so that the steam produced by the first evaporator in communication with the preheater exchanges heat with the raw material water in the preheater.

4. The multi-effect thermal pressure parallel type energy-saving distillated water producing system according to claim 1, characterized in that, The thermal pressure distillation module comprises a heater, a second condensate water discharge pipeline and a fourth heat exchanger, the second condensate water discharge pipeline is used to discharge the condensate water formed by the heat exchange of the heating steam of the thermal pressure distillation module in the heater, one end of the second condensate water discharge pipeline is in communication with the heater, the other end of the second condensate water discharge pipeline passes through the fourth heat exchanger, and the first water inlet pipeline passes through the fourth heat exchanger so that the condensate water of the thermal pressure distillation module exchanges heat with the raw material water of the thermal pressure distillation module in the fourth heat exchanger.

5. The multi-effect thermal pressure parallel type energy-saving distillated water producing system according to claim 1, characterized in that, The thermal pressure distillation module comprises a second concentrated water discharge pipeline and a fifth heat exchanger, the second concentrated water discharge pipeline is used to discharge the concentrated water formed by the evaporation of the raw material water of the thermal pressure distillation module in the second evaporator, one end of the second concentrated water discharge pipeline is in communication with the second evaporator, the other end of the second concentrated water discharge pipeline passes through the fifth heat exchanger, and the first water inlet pipeline passes through the fifth heat exchanger so that the concentrated water of the thermal pressure distillation module exchanges heat with the raw material water of the thermal pressure distillation module in the fifth heat exchanger.

6. A distillation water machine comprising the multi-effect thermal pressure parallel type energy-saving distillation water preparation system according to any one of claims 1 to 5.

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