Multi-area collaborative double-unit dangerous goods storage temperature control optimization device

Abstract

The utility model discloses a multi-zone collaborative double-unit dangerous goods storage temperature control optimization device, which comprises at least two circulating cooling storage pipelines, which comprise common cooling units, cooling pumps, buffer tanks, circulating pumps and storage tank units which are sequentially communicated end to end; the input end of the standby cooling unit is respectively connected with the output ends of the storage tank units in the two circulating cooling storage pipelines through two input three-way valves, and the output end of the standby cooling unit is respectively communicated with the input ends of the cooling pumps in the two circulating cooling storage pipelines through two output three-way valves. According to the multi-area collaborative double-unit dangerous goods storage temperature control optimization device, the input three-way valve and the output three-way valve are arranged at the two ends of the standby cooling unit, and the standby cooling unit is connected with the common cooling unit in the two circulating cooling storage pipelines in parallel, so that on the basis that switching of the common cooling unit and the standby cooling unit is facilitated, the cooling efficiency is improved; the number of standby cooling units is reduced, and the cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of hazardous materials storage technology, and in particular to a multi-area collaborative dual-unit hazardous materials storage temperature control optimization device. Background Technology

[0002] For some temperature-sensitive hazardous chemicals, such as low-flash-point flammable liquids, which are prone to volatile explosive gas mixtures at high temperatures, it is necessary to enforce temperature control on the storage containers to ensure that the storage environment temperature is kept within the safe storage temperature range in order to ensure safe storage.

[0003] like Figure 1 As shown, this is a conventional circulating cooling storage pipeline, which includes a common cooling unit 1, a cooling pump 2, a buffer tank 3, a circulating pump 4, and a storage tank unit 5 connected in sequence. The storage tank unit 5 includes two storage tanks 51 arranged in parallel. The common cooling unit 1 is used to lower the temperature of the cooling water. The cooling water is pumped by the cooling pump 2 to the buffer tank 3 for temporary storage of low-temperature cooling water. Then, the circulating pump 4 draws the low-temperature cooling water temporarily stored in the buffer tank 3 and pumps it to the storage tank 51 of the storage tank unit 5 to exchange heat with the hazardous materials in the storage tank 51, thereby lowering the storage environment temperature. After the cooling water is heated, it flows back to the common cooling unit 1 for cooling again and is pumped to the buffer tank 3 by the cooling pump 2.

[0004] The primary cooling unit 1 is connected in parallel with a backup cooling unit 6, which can be used alternately to cool the cooling water and ensure a stable low temperature inside the storage tank 51 for a long time. However, the above-mentioned circulating cooling storage pipeline operates independently, and each primary cooling unit 1 requires a backup cooling unit 6, which increases costs. Moreover, the two storage tanks 51 of the storage tank unit 5 store different hazardous materials, and their storage environment temperature requirements are different. In the existing technology, the same amount of cooling water is usually used to cool the two storage tanks 51. In order to ensure that the internal temperature of the two storage tanks 51 is within the safe storage temperature range, it will inevitably lead to excessive cooling water being introduced into one of the storage tanks 51. This not only wastes cooling water, but also increases the power consumption of the primary cooling unit 1, the backup cooling unit 6, the cooling pump 2, and the circulating pump 4 due to the extra cooling water used.

[0005] Therefore, it is necessary to improve existing hazardous materials storage facilities. Utility Model Content

[0006] The purpose of this invention is to overcome the defects in the existing technology and provide a multi-area collaborative dual-unit hazardous materials storage temperature control optimization device that reduces costs and saves energy.

[0007] To achieve the above-mentioned technical effects, the technical solution of this utility model is: a multi-area collaborative dual-unit hazardous materials storage temperature control optimization device, comprising:

[0008] The circulating cooling and storage pipeline is provided with at least two, including a common cooling unit, a cooling pump, a buffer tank, a circulating pump and a storage tank unit connected end to end;

[0009] A standby cooling unit is installed between two adjacent circulating cooling storage pipelines. The input end of the standby cooling unit is connected to the output end of the storage tank unit in the two circulating cooling storage pipelines through two input three-way valves, and the output end of the standby cooling unit is connected to the input end of the cooling pump in the two circulating cooling storage pipelines through two output three-way valves.

[0010] Preferably, in order to facilitate the storage of different chemicals and expand the range of storable items, the storage tank unit includes at least two storage tanks arranged in parallel, the inlet of the storage tank is connected to the output end of the circulating pump, and the outlet is connected to the input end of the commonly used cooling unit and the input end of the standby cooling unit.

[0011] Preferably, in order to facilitate the detection of the temperature inside the storage tank, adjust the flow rate of the coolant flowing into the storage tank, reduce coolant loss, and reduce power consumption, a temperature sensor is installed inside the storage tank, and a regulating valve is connected to the inlet of the storage tank to regulate the flow rate of the coolant entering the storage tank.

[0012] Preferably, to simplify the structure, the storage tank unit includes two storage tanks connected in parallel, and the regulating valve is a three-way proportional regulating valve, which has a circulation inlet connected to the circulation pump and a circulation outlet connected to the two storage tanks.

[0013] Preferably, in order to ensure that the coolant heated in the storage tank can be supplied to the main cooling unit or the standby cooling unit, both storage tanks are connected to a one-way valve. The inlet of the one-way valve is located between the outlet of the one-way valve and the corresponding storage tank, and the outlet of the one-way valve is connected to the input end of the main cooling unit and the standby cooling unit.

[0014] Preferably, in order to facilitate the switching between the commonly used cooling unit and the standby cooling unit of the two circulating cooling storage pipelines, two circulating cooling storage pipelines are provided, and a switching component is provided between the cooling pump output ends of the two circulating cooling storage pipelines. The switching component is used to control the connection and disconnection of the cooling pump output ends and the buffer tanks in the two circulating cooling storage pipelines.

[0015] Preferably, in order to facilitate the switching between the main cooling unit and the standby cooling unit, the switching component includes two switching three-way valves that are respectively disposed between the two cooling pumps and the two buffer tanks, and a connecting pipe connecting the two switching three-way valves.

[0016] Preferably, in order to achieve switching between the main cooling unit and the standby cooling unit, both of the switching three-way valves include a valve body, a valve block, and a drive unit. The valve body has three valve ports communicating with its own internal cavity, and the valve block has three flow channels communicating with each other. The outer surface of the valve block is sealed to the inner wall of the valve body. The drive unit drives the valve block to move between a full-open position, a half-open position, and a fully closed position. In the full-open position, the three valve ports are connected to the three flow channels one by one. In the fully closed position, the three valve ports are isolated from the three flow channels. In the half-open position, two of the valve ports are in flow with two of the flow channels, and the remaining valve port is isolated from the remaining flow channel.

[0017] Preferably, in order to achieve the connection and isolation between the valve body / valve port and the valve core flow channel, the valve block is cylindrical. Among the three flow channels, two of the flow channels are coaxial and their coaxiality is perpendicular to the coaxiality of the remaining flow channel. The driving unit drives the valve block to rotate around its own coaxiality within the valve body.

[0018] Preferably, in order to accurately adjust the amount of coolant used in the two circulating cooling storage pipelines, the output end of the standby cooling unit is connected to the two input three-way valves through a three-way diverter valve, and the two output three-way valves are connected to the input end of the standby cooling unit through a three-way merging valve.

[0019] In summary, compared with the prior art, the multi-area collaborative dual-unit hazardous materials storage temperature control optimization device of this utility model achieves parallel connection between the standby cooling unit and the commonly used cooling unit in the two circulating cooling storage pipelines by setting an input three-way valve and an output three-way valve at both ends of the standby cooling unit. This reduces the number of standby cooling units used and lowers costs while facilitating the switching between the commonly used and standby cooling units. Attached Figure Description

[0020] Figure 1 This is a structural diagram of existing technology;

[0021] Figure 2 This is a schematic diagram of the structure of the first embodiment;

[0022] Figure 3 This is a structural schematic diagram of the second embodiment;

[0023] Figure 4 This is a structural schematic diagram of the third embodiment;

[0024] Figure 5 This is a schematic diagram of the structure of a switching three-way valve;

[0025] Figure 6 This is a cross-sectional view of the three-way valve in the fully open position.

[0026] Figure 7 This is a cross-sectional schematic diagram of the three-way valve in the fully closed position.

[0027] Figure 8 This is a cross-sectional view of the three-way valve in the half-open position.

[0028] Figure 9 This is a structural schematic diagram of the fourth embodiment;

[0029] In the diagram: 1. Main cooling unit; 11. Input three-way valve; 12. Output three-way valve; 2. Cooling pump; 3. Buffer tank; 4. Circulation pump; 5. Storage tank unit; 51. Storage tank; 52. Temperature sensor; 53. Regulating valve; 54. Check valve; 6. Standby cooling unit; 61. Three-way diverter valve; 62. Three-way merge valve; 7. Switching three-way valve; 71. Valve body; 711. Valve port; 72. Valve block; 721. Flow channel; 73. Drive unit; 8. Connecting pipe. Detailed Implementation

[0030] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings and examples. The following examples are only used to more clearly illustrate the technical solution of this utility model and should not be construed as limiting the scope of protection of this utility model.

[0031] First Embodiment

[0032] like Figure 2 As shown, a multi-area collaborative dual-unit hazardous materials storage temperature control optimization device according to the first embodiment of this utility model includes:

[0033] The circulating cooling storage pipeline is provided with at least two, including a common cooling unit 1, a cooling pump 2, a buffer tank 3, a circulating pump 4, and a storage tank unit 5 connected end to end;

[0034] The standby cooling unit 6 is located between two adjacent circulating cooling storage pipelines. The input end of the standby cooling unit 6 is connected to the output end of the storage tank unit 5 in the two circulating cooling storage pipelines through two input three-way valves 11, and the output end of the standby cooling unit 6 is connected to the input end of the cooling pump 2 in the two circulating cooling storage pipelines through two output three-way valves 12.

[0035] In this embodiment, there are two circulating cooling storage pipelines. The input three-way valve 11 has two input ends and one output end. The two input ends of the input three-way valve 11 are connected to the output ends of the main cooling unit 1 and the standby cooling unit 6, respectively. The output end of the input three-way valve 11 is connected to the input end of the cooling pump 2. The output three-way valve 12 has two output ends and one input end. The two output ends of the output three-way valve 12 are connected to the input ends of the main cooling unit 1 and the standby cooling unit 6, respectively. The input end of the output three-way valve 12 is connected to the storage tank unit 5.

[0036] With the above structure, only one standby cooling unit 6 needs to be equipped between the two main cooling units 1 in the circulating cooling storage pipelines. By controlling the input three-way valve 11 and the output three-way valve 12, the standby cooling unit 6 can be switched with one of the main cooling units 1. This allows the standby cooling unit 6 to be used temporarily when one of the main cooling units 1 is undergoing maintenance; or when the cooling capacity of one of the main cooling units 1 is low, the standby cooling unit 6 can be used simultaneously to lower the temperature of the cooling water, increase the cooling capacity, and ensure a stable and suitable low-temperature storage environment inside the storage tank 51 in the storage tank unit 5. Thus, since only one standby cooling unit 6 is used for the two circulating cooling storage pipelines, the number of standby cooling units 6 used is reduced, and the cost is lowered.

[0037] A further improvement is that the storage tank unit 5 includes at least two storage tanks 51 arranged in parallel. The inlet of the storage tank 51 is connected to the output end of the circulating pump 4, and the outlet is connected to the input end of the main cooling unit 1 and the input end of the standby cooling unit 6.

[0038] Specifically, in this embodiment, the storage tank unit 5 includes two storage tanks 51, which facilitates the storage of different hazardous materials.

[0039] Second Embodiment

[0040] like Figure 3 As shown, the second embodiment of this utility model is a multi-area collaborative dual-unit hazardous materials storage temperature control optimization device, which is based on the first embodiment. The difference is that a temperature sensor 52 is installed inside the storage tank 51, and a regulating valve 53 is connected to the inlet of the storage tank 51 to regulate the flow rate of coolant entering the storage tank 51.

[0041] By setting a temperature sensor 52, the storage environment temperature inside the storage tank 51 can be easily monitored. In conjunction with the regulating valve 53, the flow rate of coolant entering the storage tank 51 can be adjusted. For example, for chemicals stored in a larger quantity or in a lower storage environment temperature, more coolant can be introduced into the storage tank 51. Conversely, for chemicals stored in a smaller quantity or in a relatively higher storage environment temperature, less coolant can be introduced into the storage tank 51. In this way, the coolant output by the circulating pump 4 can be fully utilized to meet the storage environment requirements inside the storage tank 51 while reducing the number of coolant circulation cycles. This reduces the number of cycles for the main cooling unit 1, the standby cooling unit 6, the circulating pump 4, and the cooling pump 2, thereby saving power consumption.

[0042] A further improvement is that the regulating valve 53 is a three-way proportional regulating valve 53, which has a circulation inlet connected to the circulation pump 4 and a circulation outlet connected to the two storage tanks 51.

[0043] By setting the regulating valve 53 as a three-way proportional regulating valve 53, the number of regulating valves 53 used can be reduced, the structure can be simplified, and the cost can be further reduced.

[0044] A further improvement is that both storage tanks 51 are connected to a one-way valve 54, with the inlet of the one-way valve 54 located between the outlet of the one-way valve 54 and the corresponding storage tank 51, and the outlet of the one-way valve 54 connected to the input of the main cooling unit 1 and the standby cooling unit 6.

[0045] By setting a one-way valve 54, the flow of coolant at the outlets of the two storage tanks 51 can be restricted in one direction, preventing the coolant from flowing from one storage tank 51 into the other after cooling the internal environment of the storage tank 51. In this way, it is ensured that the coolant can return to the main cooling unit 1 or the standby cooling unit 6 for further cooling after the heating is completed. Through the circulation of coolant, continuous heat preservation of the storage environment of the storage tank 51 is achieved.

[0046] Third Embodiment

[0047] like Figures 4-8 As shown, the third embodiment of this utility model is a multi-area collaborative dual-unit hazardous materials storage temperature control optimization device, which is based on the second embodiment. The difference is that a switching component is provided between the output ends of the cooling pumps 2 of the two circulating cooling storage pipelines. The switching component is used to control the connection and disconnection of the output ends of the cooling pumps 2 in the two circulating cooling storage pipelines and the buffer tanks 3 in the two circulating cooling storage pipelines.

[0048] By setting up a switching component, the cooling pump 2 can easily deliver the input coolant to any of the storage tank units 5 in the circulating cooling storage pipeline to cool the hazardous materials in the storage tank 51. In this way, the coolant produced by the two main cooling units 1 and the standby cooling unit 6 can cool any of the storage tank units 5 and storage tank 51, making it more convenient to use.

[0049] A connecting pipe 8 is also installed between the two circulating cooling storage pipelines.

[0050] Specifically, the switching assembly includes two switching three-way valves 7, each corresponding to one of the two cooling pumps 2 and the two buffer tanks 3, and a drive unit 73 connected between the two switching three-way valves 7. Each of the two switching three-way valves 7 includes a valve body 71, a valve block 72, and a drive unit 73. The valve body 71 has three valve ports 711 communicating with its own internal cavity. The valve block 72 has three interconnected flow channels 721. The outer surface of the valve block 72 is sealed to the inner wall of the valve body 71. The drive unit 73 drives the valve block 72 to move between the full-open position, the half-open position, and the fully closed position. In the fully open position, the three valve ports 711 are connected to the three flow channels 721 one by one. In the fully closed position, the three valve ports 711 are isolated from the three flow channels 721. In the half-open position, two of the valve ports 711 are connected to two of the flow channels 721, and the remaining valve port 711 is isolated from the remaining flow channel 721. The valve block 72 is cylindrical. Among the three flow channels 721, two of the flow channels 721 are coaxial and their axes are perpendicular to the axis of the remaining flow channel 721. The drive unit 73 drives the valve block 72 to rotate around its own axis inside the valve housing 71.

[0051] Of the three valve ports 711 of the switching three-way valve 7, two are connected to the output end of the cooling pump 2 and the buffer tank 3 respectively, and the remaining one is connected to one end of the connecting pipe 8, thereby realizing the connection of the two switching three-way valves 7 through the connecting pipe 8.

[0052] More specifically, the drive unit 73 is a stepper motor mounted on the valve housing 71, with its output end coaxially connected to the valve block 72. One end of one of the three flow channels 721 on the valve block 72 extends to the circumferential outer edge of the valve block 72, while the other ends are interconnected at the same point located on the axis of the valve block 72. With this structure, by driving the valve block 72 to rotate around its own axis via the stepper motor, the valve block 72 can be adjusted to different positions, such as... Figure 6 As shown, in the fully open position, the three valve ports 711 are connected to the three flow channels 721 in a one-to-one correspondence; as Figure 7 As shown, in the fully closed position, the three valve ports 711 are isolated from the three flow channels 721; as Figure 8 As shown, in the semi-open position, two valve ports 711 flow through two flow channels 721.

[0053] In the fully open position, the coolant output by cooling pump 2 can flow into the storage tank unit 5 in both circulating cooling storage pipelines. In the fully closed position, cooling pump 2 stops operating and no longer supplies coolant to either storage tank unit 5. In the semi-open position, there are three different operating conditions: First, the coolant output by cooling pump 2 is supplied to the storage tank unit 5 in the circulating cooling storage pipeline where cooling pump 2 is located; second, the coolant output by cooling pump 2 is supplied to the storage tank unit 5 in another circulating cooling storage pipeline; third, cooling pump 2 stops operating, and the cooling pump 2 in the other circulating cooling storage pipeline supplies coolant to the storage tank unit 5 in that circulating cooling storage pipeline. In this way, different operating modes can be selected according to actual needs to meet different usage requirements.

[0054] Fourth embodiment

[0055] like Figure 9 As shown, the fourth embodiment of this utility model is a multi-area collaborative dual-unit hazardous materials storage temperature control optimization device, which is based on the third embodiment. The difference is that the output end of the standby cooling unit 6 is connected to two input three-way valves 11 through a three-way diverter valve 61, and the two output three-way valves 12 are connected to the input end of the standby cooling unit 6 through a three-way confluence valve 62.

[0056] With the above structure, it is convenient for two commonly used cooling units 1 and one standby cooling unit 6 to be used together. According to the cooling needs of the two circulating cooling storage pipelines, the three-way diverter valve 61 and the three-way merge valve 62 are controlled so that the standby cooling unit 6 delivers coolant to the cooling pumps 2 of the two circulating cooling storage pipelines in a specific ratio. After the return flow, the cooled liquid after being heated in the two circulating cooling storage pipelines is returned to the standby cooling unit 6 in a specific ratio. The coolant is used rationally. For the circulating cooling storage pipeline with high coolant demand, the coolant delivery volume is increased. Correspondingly, for the circulating cooling storage pipeline with low coolant demand, the coolant delivery volume is reduced. The coolant distribution flow is rationally allocated to avoid multiple circulation of coolant, which would increase energy consumption.

[0057] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A multi-regional collaborative dual-unit hazardous materials storage temperature control optimization device, characterized in that, include: The circulating cooling and storage pipeline is provided with at least two, including a common cooling unit, a cooling pump, a buffer tank, a circulating pump and a storage tank unit connected end to end; A standby cooling unit is installed between two adjacent circulating cooling storage pipelines. The input end of the standby cooling unit is connected to the output end of the storage tank unit in the two circulating cooling storage pipelines through two input three-way valves, and the output end of the standby cooling unit is connected to the input end of the cooling pump in the two circulating cooling storage pipelines through two output three-way valves.

2. The multi-region collaborative dual-unit hazardous materials storage temperature control optimization device according to claim 1, characterized in that: The storage tank unit includes at least two storage tanks arranged in parallel. The inlet of each storage tank is connected to the output end of the circulating pump, and the outlet is connected to the input end of the commonly used cooling unit and the input end of the standby cooling unit.

3. The multi-region collaborative dual-unit hazardous materials storage temperature control optimization device according to claim 2, characterized in that: The storage tank is equipped with a temperature sensor, and the inlet of the storage tank is connected to a regulating valve to regulate the flow rate of coolant entering the storage tank.

4. The multi-region collaborative dual-unit hazardous materials storage temperature control optimization device according to claim 3, characterized in that: The storage tank unit includes two storage tanks connected in parallel. The regulating valve is a three-way proportional regulating valve, which has a circulation inlet connected to the circulation pump and a circulation outlet connected to the two storage tanks.

5. The multi-region collaborative dual-unit hazardous materials storage temperature control optimization device according to claim 2, characterized in that: Both storage tanks are connected to a one-way valve, with the inlet of the one-way valve located between the outlet of the one-way valve and the corresponding storage tank, and the outlet of the one-way valve connected to the input of the main cooling unit and the standby cooling unit.

6. The multi-region collaborative dual-unit hazardous materials storage temperature control optimization device according to claim 1, characterized in that: There are two circulating cooling storage pipelines, and a switching component is provided between the output ends of the cooling pumps of the two circulating cooling storage pipelines. The switching component is used to control the connection and disconnection of the output ends of the cooling pumps in the two circulating cooling storage pipelines and the buffer tanks in the two circulating cooling storage pipelines.

7. The multi-region collaborative dual-unit hazardous materials storage temperature control optimization device according to claim 6, characterized in that: The switching assembly includes two switching three-way valves disposed one-to-one between the two cooling pumps and the two buffer tanks, and a connecting pipe connecting the two switching three-way valves.

8. The multi-region collaborative dual-unit hazardous materials storage temperature control optimization device according to claim 7, characterized in that: Both of the aforementioned switching three-way valves include a valve body, a valve block, and a drive unit. The valve body has three valve ports communicating with its own internal cavity. The valve block has three interconnected flow channels. The outer surface of the valve block is sealed to the inner wall of the valve body. The drive unit drives the valve block to move between a full-open position, a half-open position, and a fully closed position. In the full-open position, the three valve ports are connected to the three flow channels one by one. In the fully closed position, the three valve ports are isolated from the three flow channels. In the half-open position, two of the valve ports are connected to two of the flow channels, and the remaining valve port is isolated from the remaining flow channel.

9. The multi-region collaborative dual-unit hazardous materials storage temperature control optimization device according to claim 8, characterized in that: The valve block is cylindrical. Of the three flow channels, two flow channels are coaxial and their axis is perpendicular to the axis of the remaining flow channel. The drive unit drives the valve block to rotate around its own axis within the valve housing.

10. The multi-regional collaborative dual-unit hazardous materials storage temperature control optimization device according to any one of claims 1-9, characterized in that: The output end of the standby cooling unit is connected to the two input three-way valves via a three-way diverter valve, and the two output three-way valves are connected to the input end of the standby cooling unit via a three-way merging valve.

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