Injection water production device

Abstract

The utility model relates to the technical field of injection water treatment, in particular to an injection water production device. According to the injection water production device, an evaporation chamber and a condensation chamber are arranged in a shell of a vertical evaporator, an evaporation tube bundle is arranged in the evaporation chamber, the inner wall face of the evaporation tube bundle forms an evaporation face, the evaporation chamber is used for containing raw water, and an outer cavity of the evaporation tube bundle forms the condensation chamber. The condensation chamber is used for introducing pure steam so as to condense the pure steam into distilled water while heating the raw water; the raw water pipeline is communicated with an inner cavity of the vertical evaporator, and the raw water pipeline is used for supplying raw water to the evaporation chamber to submerge the evaporation surface; the liquid outlet pipeline is used for guiding distilled water into the storage container. When water for injection is produced, pure steam is condensed into distilled water in the condensation chamber, water drops or fog drops are not easily mixed into the pure steam, the purity of the pure steam is high, and the follow-up treatment difficulty and treatment cost of the pure steam are reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of water for injection processing, especially to a water for injection production device. BACKGROUND

[0002] Water for injection is a special type of water, mainly used in the pharmaceutical and medical fields, especially when preparing injections and sterile drugs.

[0003] The quality of water for injection is directly related to the safety and effectiveness of drugs, and water for injection is generally obtained by processing raw water.

[0004] The existing water for injection production device needs to evaporate the raw water into pure steam first, and then condense the pure steam into distilled water again during the process of processing the raw water. In this process, water droplets are easy to mix into the pure steam, which affects the purity of the pure steam and increases the difficulty and cost of subsequent processing. UTILITY MODEL CONTENTS

[0005] The utility model aims to provide a water for injection production device to solve the problem that water droplets are easy to mix into the pure steam when the prior art processes water for injection.

[0006] To solve the above technical problems, the utility model provides a water for injection production device.

[0007] The water for injection production device of the utility model, including raw water pipeline, preheating module, vertical evaporator, liquid outlet pipeline and storage container,

[0008] The preheating module is used for preheating the raw water in the raw water pipeline;

[0009] The vertical evaporator includes a shell, an evaporation chamber and a condensation chamber are arranged in the shell, an evaporation tube bundle is arranged in the evaporation chamber, the inner wall surface of the evaporation tube bundle forms an evaporation surface, the evaporation chamber is used for containing raw water, the outer cavity of the evaporation tube bundle forms the condensation chamber, the condensation chamber is used for introducing pure steam to condense the pure steam into distilled water while heating the raw water; the raw water pipeline is in communication with the inner cavity of the vertical evaporator, and the raw water pipeline is used for supplying raw water to the evaporation chamber to overflow the evaporation surface;

[0010] The liquid outlet pipeline is used for guiding the distilled water into the storage container.

[0011] Further, it further includes an industrial steam conveying pipeline, the preheating module includes a first heat exchanger, the industrial steam conveying pipeline passes through the evaporation chamber to exchange heat with the raw water in the evaporation chamber, and the industrial conveying pipeline and the raw water pipeline exchange heat through the first heat exchanger to preheat the raw water.

[0012] Furthermore, a demister is provided in the evaporation chamber, and the demister is used to demist the pure steam.

[0013] Furthermore, it also includes a concentrated water discharge pipeline, which is connected to the bottom of the evaporation chamber to regularly discharge the concentrated raw water in the evaporation chamber.

[0014] Furthermore, the preheating module further includes a second heat exchanger, and the concentrated water discharge pipeline and the raw water pipeline perform heat exchange through the second heat exchanger to preheat the raw water.

[0015] Furthermore, the preheating module further includes a third heat exchanger, and the liquid outlet pipeline and the raw water pipeline perform heat exchange through the third heat exchanger to preheat the raw water.

[0016] Furthermore, it also includes a non-condensable gas removal device, the liquid outlet pipeline flows through the non-condensable gas removal device, and the non-condensable gas removal device is used to remove non-condensable gases in distilled water.

[0017] Furthermore, it also includes a non-condensable gas exhaust pipeline, and a gas outlet is provided on the upper part of the non-condensable gas removal device. One end of the non-condensable gas exhaust pipeline is connected to the gas outlet to discharge the non-condensable gas.

[0018] Furthermore, the preheating module further includes a fourth heat exchanger, and the non-condensable gas exhaust pipeline and the raw water pipeline perform heat exchange through the fourth heat exchanger to preheat the raw water.

[0019] Furthermore, it also includes a steam compression pipeline and a compressor, the compressor is arranged on the steam compression pipeline, the steam compression pipeline has a steam inlet end and a steam outlet end, the steam inlet end is connected to the evaporation chamber, and the steam outlet end is connected to the condensation chamber, the steam compression pipeline is used to introduce pure steam in the evaporation chamber into the condensation chamber, and the compressor is used to compress the pure steam in the steam compression pipeline.

[0020] Compared with the prior art, the present invention has at least the following beneficial effects:

[0021] When the injection water production device of the utility model is used to produce injection water, the raw water in the raw water pipeline is first preheated to a set temperature using a preheating module, and then the raw water is passed into the vertical evaporator and submerged in the evaporation surface of the vertical evaporator, thereby generating pure steam, which is passed into the condensation chamber of the vertical evaporator. The pure steam outside the evaporation tube bundle can heat the raw water submerged in the evaporation surface and perform heat exchange with the raw water. The pure steam is condensed into distilled water in the condensation chamber. In this process, since the raw water covers the evaporation surface, it is naturally evaporated into pure steam under static conditions, rather than being refined into mist by structures such as nozzles. Therefore, water droplets or mist droplets are not easily mixed into the pure steam, and the purity of the pure steam is relatively high, which reduces the subsequent processing difficulty and processing cost of the pure steam.

[0022] In addition, since the process of evaporating raw water into pure steam and condensing pure steam into distilled water is completed in the vertical evaporator, the required evaporation equipment has a high degree of integration and higher heat exchange efficiency, avoiding heat dissipation caused by the intermediate structure. At the same time, it is also beneficial to save site layout space and improve space utilization. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a structural schematic diagram of an embodiment of the injection water production device of the present utility model.

[0024] Reference numerals:

[0025] 10. Raw water pipeline; 11. Raw water inlet;

[0026] 20. Vertical evaporator; 21. Demister;

[0027] 30. Liquid outlet pipe; 31. Distilled water outlet;

[0028] 40. Industrial steam transmission pipeline; 41. Industrial steam inlet; 42. Industrial steam condensate outlet;

[0029] 51. First heat exchanger; 52. Second heat exchanger; 53. Third heat exchanger; 54. Fourth heat exchanger;

[0030] 60. Concentrated water discharge pipeline; 61. Concentrated water outlet;

[0031] 70. Non-condensable gas removal device; 71. Non-condensable gas discharge pipeline; 72. Non-condensable gas outlet;

[0032] 80. Steam compression pipeline; 81. Compressor; 82. Cooling water pipeline; 83. Cooling water inlet; 84. Cooling water outlet. DETAILED DESCRIPTION

[0033] The injection water production device according to the present application will be described below in conjunction with the accompanying drawings, wherein preferred embodiments of the present application are shown, it should be understood that those skilled in the art can modify the present application described herein while still achieving the advantageous effects of the present application. Therefore, the following description should be understood as a broad knowledge for those skilled in the art, rather than as a limitation of the present application.

[0034] The numbers of components in this paper, such as "first", "second", etc., are only used to distinguish the described objects, and have no any order or technical meaning. And the "connection" and "coupling" in this application include direct and indirect connection (coupling) unless otherwise specified. In the description of the present application, it should be understood that the orientation or position relationship indicated by the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like is based on the orientation or position relationship shown in the drawings, and is 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 a limitation of the present application.

[0035] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact between the first and second features through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0036] The present application will be described in more detail in the following paragraphs with reference to the accompanying drawings. The advantages and features of the present application will be more apparent according to the following description and claims. It should be noted that the drawings are very simplified and use non-precise proportions, only for the purpose of facilitating and clearly assisting the description of the embodiments of the present application.

[0037] The injection water production device according to the present application will be described below in conjunction with the accompanying drawings, wherein preferred embodiments of the present application are shown, it should be understood that those skilled in the art can modify the present application described herein while still achieving the advantageous effects of the present application. Therefore, the following description should be understood as a broad knowledge for those skilled in the art, rather than as a limitation of the present application. Figure 1 The injection water production device according to the present application will be described below in conjunction with the accompanying drawings, wherein preferred embodiments of the present application are shown, it should be understood that those skilled in the art can modify the present application described herein while still achieving the advantageous effects of the present application. Therefore, the following description should be understood as a broad knowledge for those skilled in the art, rather than as a limitation of the present application.

[0038] In one embodiment, as shown in Figure 1 The injection water production device according to the present application will be described below in conjunction with the accompanying drawings, wherein preferred embodiments of the present application are shown, it should be understood that those skilled in the art can modify the present application described herein while still achieving the advantageous effects of the present application. Therefore, the following description should be understood as a broad knowledge for those skilled in the art, rather than as a limitation of the present application.

[0039] The raw water pipeline 10 has a raw water inlet 11 , and raw water enters the raw water pipeline from the raw water inlet 11 . The preheating module is used to preheat the raw water in the raw water pipeline 10 to make it easier to evaporate in the vertical evaporator 20 .

[0040] The vertical evaporator 20 includes a housing containing an evaporation chamber and a condensation chamber. The evaporation chamber is equipped with an evaporation tube bundle, the inner wall of which forms the evaporation surface. The evaporation chamber is used to hold raw water, while the outer cavity of the evaporation tube bundle forms the condensation chamber. The condensation chamber is used to introduce pure steam to heat the raw water and condense it into distilled water. The raw water pipeline 10 is connected to the inner cavity of the vertical evaporator 20 and is used to supply raw water to the chambers to cover the evaporation surface. The liquid outlet pipeline 30 is used to guide the distilled water to a storage container.

[0041] When the injection water production device of the present invention is used to produce injection water, the raw water in the raw water pipeline 10 is first preheated to a set temperature using a preheating module, and then the raw water is passed into the vertical evaporator 20 and submerged in the evaporation surface of the vertical evaporator 20, thereby generating pure steam. The generated pure steam is passed into the condensation chamber of the vertical evaporator 20. The pure steam outside the evaporation tube bundle can heat the raw water submerged in the evaporation surface and perform heat exchange with the raw water. The pure steam is condensed into distilled water in the condensation chamber. In this process, since the raw water covers the evaporation surface, it is naturally evaporated into pure steam under static conditions, rather than being refined into mist by structures such as nozzles. Therefore, water droplets or mist droplets are not easily mixed into the pure steam, and the purity of the pure steam is relatively high, which reduces the difficulty and cost of subsequent processing of the pure steam.

[0042] In addition, since the process of evaporating raw water into pure steam and condensing pure steam into distilled water is completed in the vertical evaporator 20, the required evaporation equipment has a high degree of integration and a higher heat exchange efficiency, which avoids heat dissipation caused by the intermediate structure. At the same time, it is also beneficial to save site layout space and improve space utilization.

[0043] In one embodiment, to provide sufficient heat energy to evaporate the raw water into pure steam, the WFI production device further includes an industrial steam delivery pipeline 40 for introducing industrial steam, thereby providing heat energy for the entire WFI production device. The industrial steam delivery pipeline 40 passes through the evaporation chamber to exchange heat with the raw water in the evaporation chamber. Specifically, the industrial steam delivery pipeline 40 includes a heat exchange segment located within the evaporation chamber. Other portions of the industrial steam delivery pipeline 40 are connected to the inlet and outlet of the heat exchange segment, allowing the industrial steam delivery pipeline 40 to pass through the heat exchange segment and exchange heat with the raw water in the evaporation chamber. The preheating module includes a first heat exchanger 51. The industrial transmission pipeline and the raw water pipeline 10 perform heat exchange through the first heat exchanger 51 to preheat the raw water. The industrial steam will be converted into condensed water after heating. The industrial steam transmission pipeline 40 has an industrial steam inlet 41 and an industrial steam condensate outlet 42. Industrial steam enters from the industrial steam inlet 41, and industrial steam condensate and part of the industrial steam are discharged from the industrial steam condensate outlet 42.

[0044] In order to improve the purity of pure steam and remove the water droplets or mist droplets that may be contained in the pure steam, the pure steam is defogged before passing the pure steam into the tube bundle of the vertical evaporator 20. In one embodiment, a demister 21 is provided in the evaporation chamber, and the demister 21 is used to defog the pure steam. The demister 21 is arranged at a position close to the outlet of the evaporation chamber, and the pure steam can only leave the evaporation chamber after passing through the demister 21. During this process, the water droplets or mist droplets and endotoxins that may be contained in the pure steam are removed by the demister 21. Since the purity of the pure steam in the injection water production process of the present invention is already relatively high, the water droplets or mist droplets and endotoxins contained in the pure steam are very few, so after passing through the vertical evaporator 20, the water droplets or mist droplets and endotoxins that may be contained can be more conveniently and fully removed, ensuring that the purity of the pure steam meets the requirements.

[0045] In one embodiment, the water for injection production device further includes a concentrated water discharge line 60, which is connected to the evaporation chamber to periodically discharge the concentrated raw water from the evaporation chamber. As the raw water in the evaporation chamber evaporates, the concentration of impurities in the raw water increases. To prevent contamination of the raw water by excessive impurities, the concentrated water discharge line 60 is provided. The concentrated water discharge line 60 is connected to the evaporation chamber to periodically discharge the concentrated raw water from the evaporation chamber. The discharge period can be customized based on factors such as the concentrated water quality and specific needs.

[0046] In order to prevent impurities from being deposited at the bottom of the evaporation chamber, preferably, a drain outlet is provided at the bottom of the evaporation chamber, and the concentrated water discharge pipeline 60 has a concentrated water inlet and a concentrated water outlet 61. The concentrated water inlet is connected to the drain outlet, and the concentrated water is finally discharged from the concentrated water outlet 61.

[0047] Furthermore, since the concentrated water has a relatively high temperature and high thermal energy, in order to fully utilize the thermal energy in the concentrated water, the preheating module also includes a second heat exchanger 52, and the concentrated water discharge pipeline 60 and the raw water pipeline 10 perform heat exchange through the second heat exchanger 52 to preheat the raw water.

[0048] In one embodiment, to cool the condensed distilled water and fully utilize the thermal energy of the condensed water, the preheating module further includes a third heat exchanger 53. The liquid outlet pipeline 30 and the raw water pipeline 10 exchange heat through the third heat exchanger 53 to preheat the raw water. The liquid outlet pipeline 30 has a distilled water inlet and a distilled water outlet 31. The distilled water inlet is connected to the condensation chamber. Distilled water in the condensation chamber enters the liquid outlet pipeline 30 through the distilled water inlet and is discharged through the distilled water outlet 31.

[0049] During the condensation process of pure steam into distilled water, gases that cannot condense into water may be mixed in. These gases are called non-condensable gases. Non-condensable gases include air, inert gases, or other impurity gases. These non-condensable gases may affect the acidity or alkalinity of the water or carry microorganisms, resulting in substandard water for injection. Therefore, it is necessary to remove the non-condensable gases to ensure the purity of the distilled water. In one embodiment, the water for injection production device also includes a non-condensable gas removal device 70, through which the liquid outlet pipeline 30 flows. The non-condensable gas removal device 70 is used to remove non-condensable gases from the distilled water.

[0050] Specifically, to discharge non-condensable gases, the WFI production device further includes a non-condensable gas discharge pipeline 71. A gas outlet is provided at the top of the non-condensable gas removal device 70. One end of the non-condensable gas discharge pipeline 71 is connected to the gas outlet to discharge the non-condensable gases. The non-condensable gas discharge pipeline 71 has a non-condensable gas inlet and a non-condensable gas outlet 72. The non-condensable gas inlet is connected to the gas outlet of the non-condensable gas removal device 70, allowing the non-condensable gases to be discharged through the non-condensable gas outlet 72.

[0051] In order to fully utilize the residual heat energy in the non-condensable gas, in one embodiment, the preheating module further includes a fourth heat exchanger 54, and the non-condensable gas exhaust pipeline 71 and the raw water pipeline 10 perform heat exchange through the fourth heat exchanger 54 to preheat the raw water.

[0052] Preheating the raw water through the four heat exchangers of the preheating module can not only improve energy utilization, but also preheat the raw water to a higher temperature before entering the heat exchanger, so that it can evaporate into pure steam more quickly after entering the heat exchanger, thereby improving the efficiency of pure steam generation.

[0053] In order to reduce energy consumption and improve energy utilization, in one embodiment, the injection water production device further includes a steam compression pipeline 80 and a compressor 81. The compressor 81 is disposed on the steam compression pipeline 80. The steam compression pipeline 80 has a steam inlet and a steam outlet. The steam inlet is connected to the evaporation chamber, and the steam outlet is connected to the condensation chamber. The steam compression pipeline 80 is used to introduce pure steam from the evaporation chamber into the condensation chamber, and the compressor 81 is used to compress the pure steam in the steam compression pipeline 80. In order to dissipate heat from the compressor 81, the injection water production device further includes a cooling water pipeline 82. The cooling water pipeline 82 has a cooling water inlet 83 and a cooling water outlet 84. The cooling water pipeline 82 is connected to the compressor 81 to cool and dissipate heat from the compressor 81. Cooling water enters from the cooling water inlet 83, exchanges heat with the compressor 81, and then flows out from the cooling water outlet 84.

[0054] Compressing pure steam increases its internal energy. This allows the pure steam to transfer more heat to the raw water when it exchanges heat with the raw water through the evaporation surface, improving evaporation efficiency. This also reduces the demand for industrial steam. Compared to the energy utilization of generating industrial steam, compressor 81 has a higher energy utilization rate, which helps reduce energy consumption and facilitates the condensation of pure steam into distilled water.

[0055] Obviously, those skilled in the art may make various modifications and variations to the present invention without departing from the spirit and scope of the present invention. Thus, if such modifications and variations fall within the scope of the claims of the present invention and their equivalents, the present invention is intended to include such modifications and variations.

Claims

1. A water for injection production device, characterized in that: It includes raw water pipeline, preheating module, vertical evaporator, liquid outlet pipeline and storage container; The preheating module is used to preheat the raw water in the raw water pipeline; The vertical evaporator includes a shell, an evaporation chamber and a condensation chamber are provided in the shell, an evaporation tube bundle is provided in the evaporation chamber, the inner wall surface of the evaporation tube bundle forms an evaporation surface, the evaporation chamber is used to accommodate raw water, and the outer cavity of the evaporation tube bundle forms the condensation chamber, and the condensation chamber is used to pass pure steam to heat the raw water and condense the pure steam into distilled water; the raw water pipeline is connected to the inner cavity of the vertical evaporator and is used to supply raw water to the evaporation chamber so as to cover the evaporation surface; The liquid outlet pipeline is used to guide the distilled water into a storage container.

2. The injection water production device according to claim 1, characterized in that: It also includes an industrial steam delivery pipeline, and the preheating module includes a first heat exchanger. The industrial steam delivery pipeline passes through the evaporation chamber to exchange heat with the raw water in the evaporation chamber. The industrial steam delivery pipeline and the raw water pipeline exchange heat through the first heat exchanger to preheat the raw water.

3. The water for injection production device according to claim 1, characterized in that: A demister is provided in the evaporation chamber, and the demister is used to demist the pure steam.

4. The device for producing water for injection according to claim 1, characterized in that: The device further comprises a concentrated water discharge pipeline, which is communicated with the bottom of the evaporation chamber to regularly discharge the concentrated raw water in the evaporation chamber.

5. The device for producing water for injection according to claim 4, characterized in that: The preheating module further includes a second heat exchanger, and the concentrated water discharge pipeline and the raw water pipeline perform heat exchange through the second heat exchanger to preheat the raw water.

6. The device for producing water for injection according to claim 1, characterized in that: The preheating module further includes a third heat exchanger, and the liquid outlet pipeline and the raw water pipeline perform heat exchange through the third heat exchanger to preheat the raw water.

7. The device for producing water for injection according to claim 1, characterized in that: It also includes a non-condensable gas removal device, the liquid outlet pipeline flows through the non-condensable gas removal device, and the non-condensable gas removal device is used to remove non-condensable gases in distilled water.

8. The device for producing water for injection according to claim 7, characterized in that: The device further comprises a non-condensable gas exhaust pipeline. A gas outlet is provided on the upper portion of the non-condensable gas removal device. One end of the non-condensable gas exhaust pipeline is connected to the gas outlet to exhaust the non-condensable gas.

9. The device for producing water for injection according to claim 8, characterized in that: The preheating module further includes a fourth heat exchanger, and the non-condensable gas exhaust pipeline and the raw water pipeline perform heat exchange through the fourth heat exchanger to preheat the raw water.

10. The device for producing water for injection according to claim 1, characterized in that: It also includes a steam compression pipeline and a compressor, the compressor is arranged on the steam compression pipeline, the steam compression pipeline has a steam inlet end and a steam outlet end, the steam inlet end is connected to the evaporation chamber, and the steam outlet end is connected to the condensation chamber, the steam compression pipeline is used to introduce pure steam in the evaporation chamber into the condensation chamber, and the compressor is used to compress the pure steam in the steam compression pipeline.

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