Pure water preparation device

Abstract

The utility model relates to the technical field of pure water preparation devices. According to the technical scheme, the pure water preparation device is characterized by comprising a water storage tank, a filter unit, a booster pump, a first reverse osmosis unit, a first variable frequency pump, an intermediate water tank, a second reverse osmosis unit, a second variable frequency pump, a pure water tank and a circulating pump, the filtering unit is communicated with the water storage tank through the booster pump; the first reverse osmosis unit is communicated with the filtering unit through the first variable frequency pump; the output end of the first reverse osmosis unit is communicated with the middle water tank; the second reverse osmosis unit is communicated with the middle water tank through the second variable frequency pump; the pure water tank can be communicated with the middle water tank through the circulating pump; the circulating pump is matched with the pure water tank, the middle water tank, the variable frequency pump and the second reverse osmosis unit to form low-frequency running water circulation, so that the pure water in the pure water tank can be kept in a running water state all the time, and the condition of microorganism breeding is reduced as much as possible.

Description

Technical Field

[0001] The utility model relates to the technical field of pure water equipment, and more specifically, to a pure water preparation device. Background Art

[0002] Water is the largest and most widely used excipient in pharmaceutical production, used in the production process and in the preparation of drug inhibitors. Purified water is typically used as a solvent or test water for preparing common pharmaceutical preparations; as an extraction solvent for medicinal materials used in sterile preparations such as Chinese medicine injections and eye drops; as a solvent or diluent for preparing oral and topical preparations; and as cleaning water for instruments used in non-sterile preparations. It is also used as an extraction solvent for medicinal materials used in non-sterile preparations. Existing medical purified water is mostly produced using a water purifier or pure water purification device. However, after producing purified water, existing water purifiers or pure water purification devices directly store the purified water in a storage container for use. However, this method cannot always keep the purified water in a living state, which can easily lead to microbial growth and affect the quality of the purified water. To this end, we have developed a new pure water production device. Utility Model Content

[0003] In view of the shortcomings of the prior art, the purpose of the present invention is to provide a pure water preparation device to solve the problems of the above-mentioned background technology.

[0004] The above technical objectives of the present invention are achieved through the following technical solutions: A pure water production device, comprising: a water storage tank for storing raw water, a filter unit for receiving the raw water output from the water storage tank and filtering the raw water, a booster pump, a first reverse osmosis unit for receiving the raw water filtered by the filter unit and performing primary reverse osmosis treatment, a first variable frequency pump, an intermediate water tank for receiving and storing the raw water after reverse osmosis treatment by the first reverse osmosis unit, a second reverse osmosis unit for receiving the raw water output from the intermediate water tank after primary reverse osmosis treatment and performing secondary reverse osmosis treatment on the raw water, a second variable frequency pump, a pure water tank for receiving and storing the raw water after secondary reverse osmosis treatment by the second reverse osmosis unit, and a circulation pump; the filter unit is connected to the water storage tank through the booster pump; the first reverse osmosis unit is connected to the filter unit through the first variable frequency pump; the output end of the first reverse osmosis unit is connected to the intermediate water tank; the second reverse osmosis unit is connected to the intermediate water tank through the second variable frequency pump; and the pure water tank can be connected to the intermediate water tank through the circulation pump.

[0005] Optionally, the filtration unit includes: a first filter tank, a second filter tank, a pneumatic butterfly valve, and a safety filter; the first filter tank is provided with a quartz sand filter for filtering sand and gravel in raw water; the input end of the first filter tank is connected to the water storage tank through the booster pump; the output end of the first filter tank is connected to the input end of the second filter tank through the pneumatic butterfly pump; the second filter tank is provided with activated carbon for secondary filtration of the raw water after sand and gravel filtration; the output end of the second filter tank is connected to the safety filter; the safety filter is connected to the input end of the first reverse osmosis unit through the first variable frequency pump; the first filter tank, the second filter tank and the safety filter are provided with sewage outlets.

[0006] Optionally, it further includes a heat exchanger for connecting to an industrial steam generator; the heat exchanger is installed on the output end of the pneumatic butterfly pump.

[0007] Optionally, the first reverse osmosis unit includes: a first water supply pipeline, and several first reverse osmosis membrane elements; the input end of the first water supply pipeline is connected to the output end of the security filter through the first variable frequency pump; several first reverse osmosis membrane elements are arranged in sequence in the first water supply pipeline along the conveying direction of the first water supply pipeline; the output end of the first water supply pipeline is connected to the intermediate water tank.

[0008] Optionally, an observation port is provided on the intermediate water tank; the input end of the intermediate water tank is connected to the first water supply pipeline, and the output end thereof is connected to the input end of the second reverse osmosis unit through the second variable frequency pump.

[0009] Optionally, the second reverse osmosis unit includes: a second water supply pipeline and a plurality of second reverse osmosis membrane elements; the second water supply pipeline is connected to the intermediate water tank via the second variable frequency pump; the plurality of second reverse osmosis membrane elements are sequentially arranged in the second water supply pipeline; the output end of the second water supply pipeline is connected to the pure water tank;

[0010] Optionally, a flow meter is provided at the output end of the second water supply pipeline.

[0011] To sum up, the utility model utilizes a low-frequency water circulation formed by the cooperation of the circulation pump with the pure water tank, the intermediate water tank, the second variable frequency pump and the second reverse osmosis unit, which can always keep the pure water in the pure water tank in a living water state and minimize the occurrence of microbial growth. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structural relationship of the utility model during assembly. DETAILED DESCRIPTION

[0013] To make the objectives, features, and advantages of the present invention more readily apparent, the following detailed description of the present invention is provided with reference to the accompanying drawings. The accompanying drawings illustrate several embodiments of the present invention. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein.

[0014] In the present invention, unless otherwise expressly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be a communication between the two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances. The terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of such features.

[0015] In the present invention, unless otherwise expressly specified and limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature includes the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature. The terms "vertical," "horizontal," "left," "right," "above," "below," and similar expressions are for illustrative purposes only and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as limiting the present invention.

[0016] The present invention will be described in detail below with reference to the accompanying drawings and embodiments.

[0017] The utility model provides a pure water preparation device, such as Figure 1As shown, it includes: a water storage tank 1 for storing raw water, a filter unit 2 for receiving the raw water output from the water storage tank 1 and filtering it, a booster pump 3, a first reverse osmosis unit 4 for receiving the raw water filtered by the filter unit 2 and performing a primary reverse osmosis treatment, a first variable frequency pump 5, an intermediate water tank 6 for receiving and storing the raw water after the reverse osmosis treatment by the first reverse osmosis unit 4, a second reverse osmosis unit 7 for receiving the raw water output from the intermediate water tank 6 after the primary reverse osmosis treatment and performing a secondary reverse osmosis treatment on it, a second variable frequency pump 8, a pure water tank 9 for receiving and storing the raw water after the secondary reverse osmosis treatment by the second reverse osmosis unit 7, and a circulation pump 10; the filter unit 2 is connected to the water storage tank 1 through the booster pump 3; the first reverse osmosis unit 4 is connected to the filter unit 2 through the first variable frequency pump 5; the output end of the first reverse osmosis unit 4 is connected to the intermediate water tank 6; the second reverse osmosis unit 7 is connected to the intermediate water tank 6 through the second variable frequency pump 8; and the pure water tank 9 can be connected to the intermediate water tank 6 through the circulation pump 10.

[0018] In this embodiment, if Figure 1 As shown, the pure water device is mainly composed of a water storage tank 1, a filter unit 2, a booster pump 3, a first reverse osmosis unit 4, an intermediate water tank 6, a first reverse osmosis unit 4 and a pure water tank 9. When working, the raw water in the water storage tank 1 is pumped to the filter unit 2 for filtration treatment under the action of the booster pump 3, and the suspended matter, mud, sand, particles, organic colloid, organic matter, odor, residual chlorine, hardness and other impurities in the raw water are removed so that the treated raw water meets the water inlet requirements of reverse osmosis, and is transported to the first reverse osmosis unit 4 for reverse osmosis treatment through the first variable frequency pump 5. The raw water treated by the reverse osmosis unit is finally transported to the intermediate water tank 6 for storage; then it is transported to the second reverse osmosis unit 4 by the second variable frequency pump 8. Secondary reverse osmosis treatment is carried out in element 7, and the raw water after secondary reverse osmosis is finally converted into pure water and stored in the pure water tank 9; the pure water tank 9 is connected to a circulation pump 10. When a predetermined amount of pure water is stored in the pure water tank 9, the circulation pump 10 is started, and the water in the pure water tank 9 is pumped into the intermediate water tank 6 by the circulation pump 10, and then the second variable frequency pump 8 connected to the intermediate water tank 6 is adjusted, and the second variable frequency pump 8 is adjusted to low-frequency operation, so that the second variable frequency pump 8 transports the water in the intermediate water tank 6 at a low frequency, and finally enters the pure water tank 9 through the second reverse osmosis component, forming a low-frequency water cycle, which can always keep the pure water in the pure water tank 9 in a living water state and minimize the occurrence of microbial growth.

[0019] Optionally, a drain outlet is provided on the water tank 1 so as to clean the water tank 1 and discharge excess waste water in the water tank 1.

[0020] Furthermore, the filtration unit 2 includes: a first filter tank 21, a second filter tank 22, a pneumatic butterfly valve 23, and a security filter 24; the first filter tank 21 is provided with a quartz sand filter for filtering sand and gravel in raw water; the input end of the first filter tank 21 is connected to the water storage tank 1 through the booster pump 3; the output end of the first filter tank 21 is connected to the input end of the second filter tank 22 through the pneumatic butterfly pump; the second filter tank 22 is provided with activated carbon for secondary filtration of the raw water after sand and gravel filtration; the output end of the second filter tank 22 is connected to the security filter 24; the security filter 24 is connected to the input end of the first reverse osmosis unit 4 through the first variable frequency pump 5; the first filter tank 21, the second filter tank 22 and the security filter 24 are provided with sewage outlets.

[0021] In this embodiment, if Figure 1 As shown, the first filter tank 21 and the second filter tank 22 are connected in parallel through a pneumatic butterfly valve 23. With the cooperation of the quartz sand filter, the activated carbon filter and the security filter 24, the raw water removes impurities such as suspended matter, mud, sand, particles, organic colloid, organic matter, odor, residual chlorine, hardness, etc. in the raw water to ensure the filtering effect of the raw water; specifically, the first filter tank 21, the second filter tank 22 and the security filter 24 are all provided with a drain port to facilitate the cleaning operation of the first filter tank 21, the second filter tank 22 and the security filter 24.

[0022] Furthermore, it also includes a heat exchanger 11 for connecting to an industrial steam generator; the heat exchanger 11 is installed on the output end of the pneumatic butterfly pump.

[0023] In this embodiment, if Figure 1 As shown, a heat exchanger 11 connected to the evaporator is provided at the output end of the pneumatic butterfly pump to heat the raw water filtered in the first filter tank 21. A temperature meter is also provided at the output end of the pneumatic butterfly pump so that the user can monitor the water temperature in real time when heating the raw water.

[0024] Furthermore, the first reverse osmosis unit 4 includes: a first water supply pipeline 41, and a plurality of first reverse osmosis membrane elements 42; the input end of the first water supply pipeline 41 is connected to the output end of the security filter 24 through the first variable frequency pump 5; the plurality of first reverse osmosis membrane elements 42 are arranged in sequence in the first water supply pipeline 41 along the conveying direction of the first water supply pipeline 41; the output end of the first water supply pipeline 41 is connected to the intermediate water tank 6.

[0025] In this embodiment, if Figure 1As shown, the first reverse osmosis membrane element 42 adopts a mature technical product on the market, which belongs to the existing technology and will not be described in detail here; multiple first reverse osmosis membrane elements 42 are arranged in the water supply pipeline in sequence to ensure the reverse osmosis treatment effect of the filtered raw water.

[0026] Furthermore, an observation port is provided on the intermediate water tank 6; the input end of the intermediate water tank 6 is connected to the first water supply pipeline 41, and its output end is connected to the input end of the second reverse osmosis unit 7 through the second variable frequency pump 8; by providing the observation port, it is convenient for the user to monitor the situation in the intermediate water tank 6 in real time so as to carry out timely maintenance.

[0027] Furthermore, the second reverse osmosis unit 7 includes: a second water supply pipeline 71 and a plurality of second reverse osmosis membrane elements 72; the second water supply pipeline 71 is connected to the intermediate water tank 6 via the second variable frequency pump 8; the plurality of second reverse osmosis membrane elements 72 are sequentially arranged in the second water supply pipeline 71; the output end of the second water supply pipeline 71 is connected to the pure water tank 9;

[0028] In this embodiment, if Figure 1 As shown, the second reverse osmosis membrane element 72 adopts a mature technical product on the market, which belongs to the existing technology and will not be described in detail here; multiple second reverse osmosis membrane elements 72 are arranged in the water supply pipeline in sequence to ensure the reverse osmosis treatment effect of the filtered raw water.

[0029] Furthermore, a flow meter 12 is provided at the output end of the second water supply pipeline 71 .

[0030] In this embodiment, by designing the flow meter 12 , the water delivery rate of the second reverse osmosis unit 7 can be actually monitored.

[0031] To sum up, the pure water production device of the present invention utilizes a low-frequency water circulation formed by the cooperation of the circulating pump 10 with the pure water tank 9, the intermediate water tank 6, the second variable frequency pump 8 and the second reverse osmosis unit 7, which can always keep the pure water in the pure water tank 9 in a living water state and minimize the occurrence of microbial growth.

[0032] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiment. All technical solutions based on the concept of the present invention are within the scope of protection of the present invention. It should be noted that for those skilled in the art, certain improvements and modifications that do not depart from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A pure water production device, characterized in that: include: A water storage tank for storing raw water, a filter unit for receiving the raw water output from the water storage tank and filtering the raw water, a booster pump, a first reverse osmosis unit for receiving the raw water filtered by the filter unit and performing primary reverse osmosis treatment, a first variable frequency pump, an intermediate water tank for receiving and storing the raw water after reverse osmosis treatment by the first reverse osmosis unit, a second reverse osmosis unit for receiving the raw water output from the intermediate water tank after primary reverse osmosis treatment and performing secondary reverse osmosis treatment, a second variable frequency pump, a pure water tank for receiving and storing the raw water after secondary reverse osmosis treatment by the second reverse osmosis unit, and a circulation pump; the filter unit is connected to the water storage tank through the booster pump; the first reverse osmosis unit is connected to the filter unit through the first variable frequency pump; the output end of the first reverse osmosis unit is connected to the intermediate water tank; the second reverse osmosis unit is connected to the intermediate water tank through the second variable frequency pump; the pure water tank can be connected to the intermediate water tank through the circulation pump.

2. A pure water preparation device according to claim 1, characterized in that: The filtration unit includes: a first filter tank, a second filter tank, a pneumatic butterfly valve, and a security filter; a quartz sand filter for filtering sand and gravel in raw water is provided in the first filter tank; the input end of the first filter tank is connected to the water storage tank through the booster pump; the output end of the first filter tank is connected to the input end of the second filter tank through the pneumatic butterfly pump; the second filter tank is provided with activated carbon for secondary filtration of the raw water after sand and gravel filtration; the output end of the second filter tank is connected to the security filter; the security filter is connected to the input end of the first reverse osmosis unit through the first variable frequency pump; the first filter tank, the second filter tank and the security filter are provided with sewage outlets.

3. A pure water preparation device according to claim 2, characterized in that: It also includes a heat exchanger for connecting to an industrial steam generator; the heat exchanger is installed on the output end of the pneumatic butterfly pump.

4. A pure water production device according to claim 2, characterized in that: The first reverse osmosis unit includes: a first water supply pipeline, and a plurality of first reverse osmosis membrane elements; the input end of the first water supply pipeline is connected to the output end of the security filter through the first variable frequency pump; the plurality of first reverse osmosis membrane elements are arranged in sequence in the first water supply pipeline along the conveying direction of the first water supply pipeline; the output end of the first water supply pipeline is connected to the intermediate water tank.

5. A pure water preparation device according to claim 4, characterized in that: The intermediate water tank is provided with an observation port; the input end of the intermediate water tank is communicated with the first water delivery pipeline, and the output end thereof is communicated with the input end of the second reverse osmosis unit through the second variable frequency pump.

6. A pure water preparation device according to claim 5, characterized in that: The second reverse osmosis unit includes: a second water supply pipeline, and several second reverse osmosis membrane elements; the second water supply pipeline is connected to the intermediate water tank through the second variable frequency pump; the several second reverse osmosis membrane elements are arranged in sequence in the second water supply pipeline; the output end of the second water supply pipeline is connected to the pure water tank.

7. A pure water preparation device according to claim 6, characterized in that: A flow meter is provided at the output end of the second water supply pipeline.

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