Intelligent nitrogen sealing equipment for purified water

Abstract

The utility model discloses intelligent nitrogen sealing equipment for purified water. Comprising a storage tank, a gas supply pipeline communicated with the storage tank and an external gas supply source, a water supply pipeline communicated with the storage tank and an external water supply source, a water outlet pipeline communicated with the storage tank and an external water consumption point, and a first exhaust pipeline communicated with the water outlet pipeline and external atmosphere and capable of cooperating with the gas supply pipeline to perform nitrogen replacement on the storage tank, the second exhaust pipeline is communicated with the storage tank and the external atmosphere and can perform pressure relief protection on the storage tank; the storage tank, the gas supply pipeline, the water supply pipeline, the water outlet pipeline, the first exhaust pipeline and the second exhaust pipeline are each provided with a detection assembly connected to the controller, and the detection assemblies are selected from at least one of a pressure transmitter, a nitrogen detector and a valve. According to the intelligent nitrogen sealing equipment, the nitrogen sealing state, the water use state and the like of the equipment can be regulated and controlled at high precision, the long-term stability and the use safety of the quality of purified water are guaranteed, and the production requirement of the purified water is met.

Description

Technical Field

[0001] The utility model relates to the technical field of water storage equipment, in particular to an intelligent nitrogen sealing device for pure water. Background Art

[0002] In industrial production, such as boiler water supply, food and beverage, brewing, optoelectronics, pharmaceuticals and many other industries, a large amount of pure water is needed. At present, pure water is generally stored in storage tanks, and in order to extend the shelf life of pure water, the industry also implements nitrogen sealing for pure water. The so-called nitrogen sealing is actually to fill the top space of the storage tank with inert gas (usually nitrogen) to ensure that the pure water in the storage tank is isolated from the air, that is, to prevent the pure water from being oxidized and damaged, thereby ensuring that the water quality of the pure water is fresh, stable and safe to use.

[0003] At present, when nitrogen is sealed for pure water in the market, generally only a nitrogen supply valve (used to control the nitrogen entering the storage tank) and a nitrogen discharge valve (used to control the nitrogen leaving the storage tank) are installed on the storage tank, and the opening and closing of the valve are automatically adjusted by the mechanical structure of the valve itself and the nitrogen pressure. However, the valve will age faster due to frequent opening and closing, resulting in unstable nitrogen sealing pressure; and the stability of nitrogen sealing pressure is an important guarantee for the quality preservation effect of liquid sealing and the safety of storage tank use. Therefore, the existing pure water nitrogen sealing equipment cannot meet the production needs well.

[0004] In view of this, the present utility model is proposed. Summary of the invention

[0005] In order to overcome the above-mentioned defects, the utility model provides an intelligent nitrogen sealing equipment for pure water, which has a simple and reasonable structure and a high degree of intelligence. It can achieve high-precision control of the nitrogen sealing state, water usage state, etc. of the equipment, thereby ensuring the long-term stability of the pure water quality and the safety of use, and meeting the production needs of pure water.

[0006] The utility model adopts the following technical solution to solve the technical problem: an intelligent nitrogen sealing device for pure water, comprising a storage tank for storing pure water, an air supply pipeline connected between the interior of the storage tank and an external air supply source, a water supply pipeline connected between the interior of the storage tank and an external water supply source, a water outlet pipeline connected between the interior of the storage tank and an external water point, a first exhaust pipeline connected between the water outlet pipeline and the external atmosphere and capable of cooperating with the air supply pipeline to replace nitrogen in the storage tank, and a second exhaust pipeline connected between the interior of the storage tank and the external atmosphere and capable of pressure relief protection for the storage tank; in addition, detection components connected to a controller are respectively installed on the storage tank, the air supply pipeline, the water supply pipeline, the water outlet pipeline, the first exhaust pipeline and the second exhaust pipeline, and the detection components are selected from at least one of a pressure transmitter, a nitrogen detector and a valve.

[0007] As a further improvement of the present invention, the air supply pipeline, the water supply pipeline and the second exhaust pipeline are respectively connected to the top of the storage tank, and the water outlet pipeline and the first exhaust pipeline are respectively connected to the bottom of the storage tank.

[0008] As a further improvement of the present invention, the structures of the detection components respectively installed on the storage tank, the air supply pipeline, the water supply pipeline, the water outlet pipeline, the first exhaust pipeline and the second exhaust pipeline are different from each other.

[0009] As a further improvement of the utility model, the detection assembly installed on the storage tank includes a first pressure transmitter, a first nitrogen detector, a positive pressure valve and a negative pressure valve.

[0010] As a further improvement of the utility model, the detection assembly installed on the gas supply pipeline includes a second nitrogen detector, a pressure reducing valve, a second pressure transmitter, a gas supply valve and a gas flow regulating valve.

[0011] As a further improvement of the present invention, the detection component installed on the water supply pipeline includes a water supply valve; the detection component installed on the water outlet pipeline includes a pneumatic drain valve.

[0012] As a further improvement of the present invention, the detection component installed on the first exhaust pipeline includes a first air release valve, a check valve and a third nitrogen detector; the detection component installed on the second exhaust pipeline includes a second air release valve and a breathing valve.

[0013] The beneficial effects of the utility model are as follows: ① Compared with the prior art, the structure of the intelligent nitrogen sealing equipment for pure water described in the utility model is streamlined, reasonable, and highly intelligent, and can achieve high-precision control of the nitrogen sealing state, water use state, etc. of the equipment, thereby effectively improving the long-term stability of the nitrogen sealing state of the equipment and the safety of the use of the water use state, and well ensuring the long-term stability and safety of the quality of pure water, and meeting the production needs of pure water. ② The intelligent nitrogen sealing equipment described in the utility model can be modified on the existing pure water storage tank, without the need to replace or design a new storage tank, and has the characteristics of energy saving and environmental protection, high operating sensitivity, strong reliability, simple operation and maintenance, etc., which is conducive to production implementation. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic structural diagram of the intelligent nitrogen sealing equipment for pure water described in the utility model.

[0015] Combined with the accompanying drawings, the following description is given:

[0016] 1. Storage tank; 2. Air supply pipeline; 3. Water supply pipeline; 4. Water outlet pipeline; 5. First exhaust pipeline; 6. Second exhaust pipeline; 70. First pressure transmitter; 71. First nitrogen detector; 72. Positive pressure valve; 73. Negative pressure valve; 74. Second nitrogen detector; 75. Pressure reducing valve; 76. Second pressure transmitter; 77. Air supply valve; 78. Gas flow regulating valve; 79. Water supply valve; 710. Pneumatic drain valve; 711. First air relief valve; 712. Check valve; 713. Third nitrogen detector; 714. Second air relief valve; 715. Breathing valve. DETAILED DESCRIPTION

[0017] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings.

[0018] Embodiment 1:

[0019] Please see attached Figure 1As shown, this embodiment 1 provides an intelligent nitrogen sealing device for pure water, which includes a storage tank 1, an air supply pipeline 2, a water supply pipeline 3, a water outlet pipeline 4, a first exhaust pipeline 5 and a second exhaust pipeline 6, wherein the storage tank 1 is used to store pure water; the air supply pipeline 2 is connected to the inside of the storage tank 1 and an external air supply source (such as a nitrogen tank); the water supply pipeline 3 is connected to the inside of the storage tank 1 and an external water supply source (such as a water tank); the water outlet pipeline 4 is connected to the inside of the storage tank 1 and an external water point; the first exhaust pipeline 5 is connected to the The water outlet pipeline 4 is connected to the external atmosphere, and can cooperate with the air supply pipeline 2 to replace the interior of the storage tank 1 with nitrogen; the second exhaust pipeline 6 is connected to the interior of the storage tank 1 and the external atmosphere, and can provide pressure relief protection for the storage tank 1; in addition, detection components connected to the controller are respectively installed on the storage tank 1, the air supply pipeline 2, the water supply pipeline 3, the water outlet pipeline 4, the first exhaust pipeline 5 and the second exhaust pipeline 6, and the detection components are selected from at least one of a pressure transmitter, a nitrogen detector and a valve.

[0020] From the above, it can be seen that ① compared with the prior art, the intelligent nitrogen sealing equipment for pure water described in the utility model has a streamlined, reasonable and intelligent structure, and can achieve high-precision control of the nitrogen sealing state, water use state, etc. of the equipment, thereby effectively improving the long-term stability of the nitrogen sealing state of the equipment and the safety of the use of the water use state, and well ensuring the long-term stability and use safety of the pure water quality, and meeting the production needs of pure water. ② The intelligent nitrogen sealing equipment described in the utility model can be modified on the existing pure water storage tank, without the need to replace or design a new storage tank, and has the characteristics of energy saving and environmental protection, high operating sensitivity, strong reliability, simple operation and maintenance, etc., which is conducive to production implementation.

[0021] The specific structure and working method of the intelligent nitrogen sealing equipment for pure water described in Example 1 are described in detail below.

[0022] First, regarding the specific structure of the intelligent nitrogen storage equipment.

[0023] Please continue to refer to the attached Figure 1 As shown, in this embodiment 1, the air supply pipeline 2, the water supply pipeline 3 and the second exhaust pipeline 6 are respectively connected to the top of the storage tank 1, and the water outlet pipeline 4 and the first exhaust pipeline 5 are respectively connected to the bottom of the storage tank 1. It can be understood that the layout of the above five pipelines is very reasonable and can well meet their respective functional requirements.

[0024] In addition, in this embodiment 1, according to the different functions of the storage tanks and each pipeline, the structures of the detection components respectively installed on the storage tank 1, the gas supply pipeline 2, the water supply pipeline 3, the water outlet pipeline 4, the first exhaust pipeline 5 and the second exhaust pipeline 6 are also different from each other; but each of the detection components is respectively connected to the controller in a wired or wireless manner, so that the controller can perform intelligent online monitoring and adjustment of the storage tank 1, the gas supply pipeline 2, the water supply pipeline 3, the water outlet pipeline 4, the first exhaust pipeline 5 and the second exhaust pipeline 6, that is, to achieve high-precision control of the nitrogen storage state, water use state, etc. of the equipment, thereby effectively improving the long-term stability of the nitrogen sealing state of the equipment and the safety of use of the water use state.

[0025] The detection components installed on the storage tank and each pipeline can be further preferably designed as follows: the detection components installed on the storage tank 1 include a first pressure transmitter 70, a first nitrogen detector 71, a positive pressure valve 72 and a negative pressure valve 73, which are respectively connected to the controller. Figure 1 It can be seen that the first pressure transmitter 70, the first nitrogen detector 71, the positive pressure valve 72 and the negative pressure valve 73 are arranged at intervals on the storage tank 1 and are independent of each other.

[0026] The detection assembly installed on the gas supply pipeline 2 includes a second nitrogen detector 74, a pressure reducing valve 75, a second pressure transmitter 76, a gas supply valve 77 and a gas flow regulating valve 78, which are respectively connected to the controller. Figure 1 It can be seen that the second nitrogen detector 74, the pressure reducing valve 75, the second pressure transmitter 76, the gas supply valve 77 and the gas flow regulating valve 78 are installed on the gas supply pipeline 2 at intervals along the length direction of the gas supply pipeline 2, that is, they are independent of each other.

[0027] The detection assembly installed on the water supply pipeline 3 includes a water supply valve 79 connected to a controller.

[0028] The detection assembly installed on the water outlet pipe 4 includes a pneumatic drain valve 710 connected to a controller.

[0029] The detection assembly installed on the first exhaust pipe 5 includes a first air release valve 711, a check valve 712 and a third nitrogen detector 713, which are respectively connected to the controller. Figure 1 It can be seen that the first air release valve 711 , the check valve 712 and the third nitrogen detector 713 are also installed on the first exhaust pipeline 5 at intervals along the length direction of the first exhaust pipeline 5 .

[0030] The detection assembly installed on the second exhaust pipe 6 includes a second air release valve 714 and a breathing valve 715, both of which are connected to the controller. Figure 1 It can be seen that the second air release valve 714 and the breathing valve 715 are also installed on the second exhaust pipeline 6 at intervals along the length direction of the second exhaust pipeline 6 .

[0031] In addition, in this embodiment 1, the intelligent nitrogen sealing equipment is also equipped with a display device and an alarm that are both communicatively connected to the controller. After the controller processes and analyzes the information fed back by the detection component, the display device can display the processing and analysis results of the controller in real time, that is: the display device can display the working status of the storage tank 1, the air supply pipeline 2, the water supply pipeline 3, the water outlet pipeline 4, the first exhaust pipeline 5 and the second exhaust pipeline 6 in real time; the alarm can selectively alarm according to the processing and analysis results of the controller to warn the staff.

[0032] Next, the working method of the intelligent nitrogen storage equipment is described.

[0033] Please continue to refer to the attached Figure 1 As shown, the working method of the intelligent nitrogen storage equipment described in this embodiment 1 is:

[0034] S1: Perform nitrogen replacement operation inside the storage tank 1 in advance, specifically:

[0035] S11: The controller first controls the pneumatic drain valve 710 to open, so as to drain all the residual water in the storage tank 1; then the controller controls the pneumatic drain valve 710 to close, and controls the first air relief valve 711 to open.

[0036] S12: High-pressure nitrogen flows into the gas supply pipeline 2, and is first reduced in pressure to a set pressure value by the pressure reducing valve 75; the second pressure transmitter 76 can transmit the detected nitrogen pressure value information to the controller, and the controller analyzes and determines the received nitrogen pressure value information and then controls the gas supply valve 77 and the gas flow regulating valve 78 to open and adjust them to appropriate inlet and outlet sizes, so that nitrogen can flow into the storage tank 1 at an appropriate flow rate.

[0037] S13: Since the first air relief valve 711 is in an open state, the nitrogen flowing into the storage tank 1 will flow through the water outlet pipe 4 and the first exhaust pipe 5 in sequence (it can be understood that the nitrogen will also flow through the first air relief valve 711, the check valve 712 and the third nitrogen detector 713), and be discharged into the outdoor atmosphere; thereby, the air in the storage tank 1 can be emptied, the storage tank 1 can be filled with nitrogen, and the nitrogen replacement operation inside the storage tank 1 can be completed.

[0038] Supplementary explanation: When performing the above-mentioned nitrogen replacement operation, the controller will compare the data information fed back by the third nitrogen detector 713 and the first nitrogen detector 71. Only when the above-mentioned two data information are the same, the controller will determine that the nitrogen replacement operation is completed.

[0039] S14: After the controller determines that the nitrogen replacement operation is completed, the controller controls the first air release valve 711 and the air supply valve 77 to close.

[0040] S2: Perform water injection and nitrogen sealing operations on the storage tank 1, specifically:

[0041] The controller controls the water supply valve 79 to open, and the pure water in the external water supply source (such as a water tank) flows into the storage tank 1 through the water supply pipeline 3; it is understandable that as the water level in the storage tank 1 gradually rises, the volume occupied by the gas phase (i.e., nitrogen) gradually decreases and the pressure gradually increases. When the nitrogen pressure value in the storage tank 1 rises to a value higher than the pressure setting value of the second air relief valve 714, the controller controls the second air relief valve 714 to open, and the nitrogen in the storage tank 1 will flow through the breathing valve 715 and the second exhaust pipeline 6 and be discharged into the outdoor atmosphere. Correspondingly, the nitrogen pressure value in the storage tank 1 begins to decrease until the nitrogen pressure value in the storage tank 1 drops to the set value, and then the second air relief valve 714 is controlled to close, and the entire equipment enters a nitrogen sealing state.

[0042] Note: The first pressure transmitter 70 is used to sense the nitrogen pressure value information in the storage tank 1 and transmit it to the controller.

[0043] S3: Water use operations, specifically:

[0044] When the user end needs water, the controller controls the pneumatic drain valve 710 to open, and the pure water in the storage tank 1 flows out through the water outlet pipe 4; it is understandable that as the water level in the storage tank 1 gradually decreases, the volume occupied by the gas phase (i.e., nitrogen) gradually decreases and the pressure gradually decreases. When the controller determines that the nitrogen pressure value in the storage tank 1 is reduced to the set value, the controller controls the air supply valve 77 and the gas flow regulating valve 78 to open and adjust to a suitable state, and fills nitrogen into the storage tank 1 again. When the nitrogen pressure value in the storage tank 1 reaches the set value, the controller controls the air supply valve 77 to close.

[0045] Supplementary explanation: ① In the water storage and water use state of the intelligent nitrogen sealing equipment, if the first pressure transmitter 70 senses that the nitrogen pressure value in the storage tank 1 is higher than the set value, the controller will also control the positive pressure valve 72 to open accordingly; and if the first pressure transmitter 70 senses that the nitrogen pressure value in the storage tank 1 is lower than the set value, the controller will also control the negative pressure valve 73 to open accordingly; and so on. The above measures can protect the safe use of the storage tank 1 and avoid damage to the storage tank due to excessive or insufficient internal pressure of the storage tank. ② Because nitrogen is an inert gas, if the nitrogen concentration in the environment is too high, it will cause suffocation and affect personnel safety. Therefore, this embodiment also installs a second nitrogen detector 74 on the gas supply pipeline 2, which is used to monitor the nitrogen concentration in real time and transmit it to the controller. If the nitrogen concentration exceeds the standard, the second nitrogen detector 74 and the alarm will simultaneously issue an alarm to ensure personnel safety.

[0046] Note: The prefixes "first", "second", "third", etc. in the component names in this specification (such as the first nitrogen detector, the second nitrogen detector, the third nitrogen detector, etc.) are only for the convenience of description and are not used to limit the scope of implementation of this utility model patent.

[0047] To sum up, the intelligent nitrogen sealing equipment for pure water described in the utility model has a simple, reasonable and intelligent structure, and can achieve high-precision control of the nitrogen sealing state, water use state, etc. of the equipment, which well ensures the long-term stability of the pure water quality and the safety of use, and meets the production needs of pure water.

[0048] In the above description, many specific details are described to facilitate a full understanding of the present invention. However, the above description is only a preferred embodiment of the present invention. The present invention can be implemented in many other ways different from those described herein, so the present invention is not limited by the specific implementation disclosed above. At the same time, any person familiar with the technical field can make many possible changes and modifications to the technical solution of the present invention by using the methods and technical contents disclosed above without departing from the scope of the technical solution of the present invention, or modify it into an equivalent embodiment of equivalent changes. Any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the scope of protection of the technical solution of the present invention.

Claims

1. An intelligent nitrogen storage device for pure water, characterized in that: The invention comprises a storage tank (1) for storing pure water, an air supply pipeline (2) connected between the interior of the storage tank (1) and an external air supply source, a water supply pipeline (3) connected between the interior of the storage tank (1) and an external water supply source, a water outlet pipeline (4) connected between the interior of the storage tank (1) and an external water point, a first exhaust pipeline (5) connected between the water outlet pipeline (4) and the external atmosphere and capable of cooperating with the air supply pipeline (2) to replace nitrogen in the interior of the storage tank (1), and a second exhaust pipeline (6) connected between the interior of the storage tank (1) and the external atmosphere and capable of performing pressure relief protection on the storage tank (1); in addition, a detection component connected to a controller is respectively installed on the storage tank (1), the air supply pipeline (2), the water supply pipeline (3), the water outlet pipeline (4), the first exhaust pipeline (5) and the second exhaust pipeline (6), and the detection component is selected from at least one of a pressure transmitter, a nitrogen detector and a valve.

2. The intelligent nitrogen sealing device for pure water according to claim 1, characterized in that: The air supply pipeline (2), the water supply pipeline (3) and the second exhaust pipeline (6) are respectively connected to the top of the storage tank (1), and the water outlet pipeline (4) and the first exhaust pipeline (5) are respectively connected to the bottom of the storage tank (1).

3. The intelligent nitrogen sealing device for pure water according to claim 1, characterized in that: The structures of the detection components respectively installed on the storage tank (1), the air supply pipeline (2), the water supply pipeline (3), the water outlet pipeline (4), the first exhaust pipeline (5) and the second exhaust pipeline (6) are different from each other.

4. The intelligent nitrogen sealing device for pure water according to claim 3 is characterized in that: The detection assembly installed on the storage tank (1) comprises a first pressure transmitter (70), a first nitrogen detector (71), a positive pressure valve (72) and a negative pressure valve (73).

5. The intelligent nitrogen sealing device for pure water according to claim 3 is characterized in that: The detection assembly installed on the gas supply pipeline (2) comprises a second nitrogen detector (74), a pressure reducing valve (75), a second pressure transmitter (76), a gas supply valve (77) and a gas flow regulating valve (78).

6. The intelligent nitrogen sealing device for pure water according to claim 3, characterized in that: The detection assembly installed on the water supply pipeline (3) includes a water supply valve (79); The detection assembly installed on the water outlet pipeline (4) comprises a pneumatic drain valve (710).

7. The intelligent nitrogen sealing device for pure water according to claim 3, characterized in that: The detection assembly installed on the first exhaust pipeline (5) comprises a first air release valve (711), a check valve (712) and a third nitrogen detector (713); The detection assembly installed on the second exhaust pipeline (6) comprises a second air release valve (714) and a breathing valve (715).

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