A method for batch ice and snow melting and water supply in high altitude cold regions

Abstract

The present invention discloses a method for batch ice melting and snow melting for water supply in high-altitude cold regions, which includes an ice melting and snow melting machine, a row-connected water purifier, and a capacitive deionization water purifier that are connected in sequence along the water flow direction. A hot water boiler for providing hot water for spraying and ice melting is connected to the ice melting and snow melting machine; a melt water direct discharge pipe is connected to the ice melting and snow melting machine, and a purified water direct discharge pipe is connected to the row-connected water purifier. Both the melt water direct discharge pipe and the purified water direct discharge pipe can supply up-to-standard water to the outside. First, the crushed ice blocks and snow blocks are added to the ice melting and snow melting machine for spraying and melting, and then the melt water is sent to the corresponding-stage row-connected water purifier and capacitive deionization water purifier for water quality purification. After the water purification or water use is completed, when the ambient temperature of the water purification device is too low, the residual water or water vapor can be discharged through the vacuum drainage component to prevent freezing and cracking. This method solves the problem of scarce domestic water in high-altitude cold regions, has good environmental adaptability, and has good practicability.

Description

Technical Field

[0001] The present invention relates to the technical field of domestic water supply in high-altitude cold regions, and particularly to a method for batch ice and snow melting water supply in high-altitude cold regions. Background Art

[0002] In high-altitude and cold regions, it is restricted by the supply of snowmelt and glacier meltwater sources and seasons. In the warm season, river water is relatively concentrated but the available time period is short; in the cold season, river water and shallow lake water freeze into ice, and there is no available liquid water. Moreover, in recent years, with the continuous increase in the population of plateau activities, due to natural problems such as the shortage of plateau groundwater, the scarcity of surface water, and the predominance of brackish water, the problem of domestic water use in the plateau has become increasingly prominent, seriously affecting people's production and life in this area.

[0003] At the same time, when drawing river water and lake water in high-altitude and cold regions, in order to ensure the physical health of personnel and the safety of engineering quality, it must be purified. During the purification process, due to the low temperature in the area, especially when the local temperature drops to about -30°C in the cold season, and when there is residual water or water vapor in the water purifier and its water supply pipeline and water conveyance pipeline rich in a large number of capillaries, it is extremely easy to freeze and crack, damaging the water purifier or water purification equipment. Therefore, in order to solve the problem of shortage of domestic water in plateau areas, it is necessary to study a method for batch ice and snow melting water supply in high-altitude cold regions. Summary of the Invention

[0004] The present invention discloses a method for batch ice and snow melting water supply in high-altitude cold regions to solve the problems raised in the above background art.

[0005] A method for batch ice and snow melting water supply in high-altitude cold regions includes the following steps:

[0006] 1) Take an ice and snow melting water supply device, which includes an ice and snow melting machine, a row-connected water purifier, and an electrocapacitive deionization water purifier connected in sequence along the water flow direction. A hot water boiler for providing spray thawing hot water is connected to the ice and snow melting machine; in addition, a meltwater direct discharge pipe is connected to the ice and snow melting machine, and a purified water direct discharge pipe is connected to the row-connected water purifier. Both the meltwater direct discharge pipe and the purified water direct discharge pipe can supply up-to-standard water to the outside.

[0007] The ice-melting and snow-melting machine comprises a first skid-mounted base, a melting refrigerator is installed on the first skid-mounted base, a melting refrigerator top cover is installed on the melting refrigerator, an ice-throwing deceleration groove, an ice-melting residue groove, a cleaning injection pipe and a residue guide plate are sequentially arranged in the melting refrigerator from top to bottom, the ice-throwing deceleration groove and the residue guide plate are both inclinedly arranged, and a plurality of nozzles facing the residue guide plate are arranged on the cleaning injection pipe; the lower end of the ice-throwing deceleration groove is connected with the upper end of the ice-melting residue groove, the ice-melting residue groove has no bottom and a side opening, and the open end is connected with the residue removal port arranged on the side wall of the melting refrigerator; the ice-melting residue groove is equipped with multiple layers of removable ice-melting residue nets, and the aperture of the ice-melting residue nets decreases from top to bottom; the periphery of the residue guide plate is sealed and fixedly connected with the inner wall of the melting refrigerator and encloses a water storage space with the inner wall of the melting refrigerator above the residue guide plate, and the water storage space is connected with the ice-melting water supply port, the spray return water interface and the waste water discharge valve arranged on the side wall of the melting refrigerator; the side wall of the melting refrigerator is also equipped with a cleaning water supply interface connected with the cleaning injection pipe;

[0008] An ice-dropping port is provided on the top cover of the melting refrigerator, and the ice-dropping port is located above the higher end of the ice-dropping deceleration tank; a plurality of branch pipes are vertically provided on the top cover of the melting refrigerator, and the upper ends of the branch pipes are connected to spray water supply pipes, and the lower ends of the branch pipes are connected to high-pressure sprayers arranged on the inner side of the top cover of the melting refrigerator, and the high-pressure sprayers are located above the ice-dropping deceleration tank and the ice-melting filter residue tank, and a spray water supply quick connector is also provided at the end of the spray water supply pipe;

[0009] The row water purifier comprises a second skid-mounted base, on which a primary row water purifier, a secondary row water purifier, a buffer insulation water tank and a first integrated control box are installed; the water inlet of the primary row water purifier is connected to a clean water supply pipe, the water outlet of the primary row water purifier is connected to the water inlet of the secondary row water purifier, the water outlet of the secondary row water purifier is connected to a clean water outlet pipe, a clean water outlet valve is provided on the clean water outlet pipe and connected to the buffer insulation water tank through the clean water outlet valve, and a water storage and supply valve is provided at the bottom of the buffer insulation water tank; the first integrated control box is respectively connected to the primary row water purifier and the secondary row water purifier by signal;

[0010] The capacitor deionization water purifier comprises a third skid-mounted base, a water purification frame and a second integrated control box are installed on the third skid-mounted base, an equipment protection cover is installed on the outside of the water purification frame, a partition is installed on the inside of the water purification frame, a plurality of clamps are arranged side by side on both sides of the partition, a desalination capacitor adsorber is installed on the clamp, a water inlet end of the desalination capacitor adsorber is connected to a water supply pipe, a water supply control valve is also provided on the water supply pipe, and the water supply pipe is connected to a water supply pump installed on the third skid-mounted base through the water supply control valve, and a water supply inlet valve is provided on the water inlet end of the water supply pump; a water outlet end of the desalination capacitor adsorber is connected to a water outlet pipe, a water outlet quick connector is provided at the end of the water outlet pipe, and the desalination capacitor adsorber and the water supply pump are respectively connected to the second integrated control box signal;

[0011] 2) Connect the spray water supply pipe on the ice and snow melting machine to the hot water end of the hot water boiler and open the water distribution valve. The sprayed hot water is sprayed into the ice melting box through the high-pressure sprayer. At the same time, open the upper cover plate of the ice feeding port and put ice cubes into the ice feeding deceleration tank. The ice cubes melt into water when contacting the high-temperature and high-pressure hot water sprayed by the high-pressure sprayer during the process of sliding down along the ice feeding deceleration tank and entering the ice melting filter residue tank. During the process of the melted water flowing downward into the bottom of the ice melting box, it contacts the multi-layer ice melting filter residue nets arranged in the ice melting filter residue tank for filtration, and gradually filters out the insoluble impurities in the melted water. The filtered melted water falls downward into the water storage space. After sedimentation for a period of time, water quality detection is carried out. If the water quality meets the standard, most of the melted water enters the melted water direct discharge pipe through the ice melting water supply port and is directly discharged outside. A small part of the melted water enters the cold water end of the hot water boiler through the spray return water interface as the spray water source; if the water quality does not meet the standard, most of the melted water is further purified by the combined row water purifier connected to the ice melting water supply port, and a small part of the melted water continues to enter the cold water end of the hot water boiler through the spray return water interface as the spray water source;

[0012] 3) Inject the unqualified melted water discharged from the ice melting water supply port into the primary combined row water purifier. Start the primary combined row water purifier and the secondary combined row water purifier through the first comprehensive control box. After the ice and snow melted water is preliminarily purified by the primary combined row water purifier, it flows into the secondary combined row water purifier for secondary purification; then open the purified water outlet valve, and the purified melted water flows into the buffer heat preservation water tank through the purified water outlet pipe for storage. When needed, open the water storage water supply valve for external discharge; for the purified water discharged through the water storage water supply valve, if the water quality meets the standard, it can be directly discharged through the purified water direct discharge pipe for use. If the water quality does not meet the standard, it enters the capacitive deionization water purifier for further purification;

[0013] 4) Connect the water supply pump to the buffer heat preservation water tank, open the water supply inlet valve and the water supply control valve. Start the water supply pump through the second comprehensive control box to pump the unqualified purified water into the desalination capacitive adsorber through the water supply pipe, then start the desalination capacitive adsorber to perform electro-de-salination on the purified water, and then open the outlet control valve to send out the desalinated and purified melted water through the outlet pipe.

[0014] The basis for judging whether the water quality meets the standard is "Outdoor Water Supply Design Standard" (GB 50013 - 2018), "Sanitary Standard for Drinking Water" (GB 5749 - 2006) and "General Rules for Standard Test Methods of Drinking Water" (GB / T 5750.1 - 2006).

[0015] The principle of ice and snow melting for water supply in the present invention is as follows: After collecting ice and snow, it is melted into water by means of high-pressure steam or hot water spraying heating, and according to the actual water consumption requirements, the water melting speed of the ice and snow melting machine is controlled by adjusting the pressure and flow rate of the spraying steam or hot water. At the same time, after the ice and snow melt, suspended matters, precipitates and other impurities are primarily filtered through an ice melting filter residue net to meet the requirements of domestic water. Meanwhile, to solve the problems of water purification in high-altitude and cold regions and the anti-freezing and cracking of water purifiers or water purification equipment after use, according to the salinity and pollution degree of the source water, corresponding-stage series-connected water purifiers and capacitive deionization water purifiers are adopted to purify the water quality. After the water purification or use is completed, when the ambient temperature where the water purification device is located is too low, the residual water or water vapor can be discharged through a vacuum drainage component to prevent freezing and cracking.

[0016] The beneficial effects of the present invention are as follows:

[0017] 1. This method and equipment solve the problem of scarce domestic water in plateau areas, and can further filter and purify the ice and snow melt water and desalt it by capacitance, improving the quality of the melt water, ensuring the physical health of personnel and the safety of engineering quality, and having good practicability;

[0018] 2. An ice throwing deceleration groove is provided inside the ice and snow melting machine, which can extend the spraying and ice melting distance of the ice block in the ice melting box, improving the ice melting effect; and the ice throwing deceleration groove is inclined, which can ensure that the ice block can quickly enter the ice melting filter residue groove under the action of its own gravity, avoiding blocking the ice throwing port; deceleration strips are arranged inside the ice throwing deceleration groove, which can decelerate the ice block to prevent the ice block from moving too fast and damaging the ice melting filter residue net; multiple layers of ice melting filter residue nets with different pore diameters are arranged from top to bottom inside the ice melting filter residue groove, which can gradually filter insoluble impurities such as sand and stone in the ice block to ensure the quality of the melt water in the ice melting box; a slag guiding plate is also inclined at the bottom of the ice melting box, which can precipitate the filtered melt water to further improve the quality of the melt water;

[0019] 3. The series-connected water purifier can further filter and purify the melt water. The primary series-connected water purifier and the secondary series-connected water purifier can perform secondary filtration on the melt water to meet the requirements of domestic water; and a vacuum drainage component is also installed on the series-connected water purifier, which can discharge the residual water in the water purifier and pipeline to protect the device from freezing and cracking damage;

[0020] 4. The capacitive deionization water purifier can remove the salt in the melt water, improving the water quality; the salt ions in the ice and snow melt water are removed by electrostatic adsorption, which has the advantages of simple operation process and high energy utilization rate. There will be no by-products generated during the whole process, which is environmentally friendly and can separate substances with low content and difficult to separate by conventional methods. At the same time, a vacuum drainage component is also installed on the capacitive deionization water purifier, which can prevent the residual water in the pipeline in cold seasons from causing pipeline rupture and has good environmental adaptability. Description of the Drawings

[0021] Figure 1 This is the process flow diagram of the ice melting and water supply method of the present invention;

[0022] Figure 2 This is the structural schematic diagram of the equipment used in the ice melting and snow melting water supply method of the present invention;

[0023] Figure 3 is Figure 2 the external structural schematic diagram of the ice melting and snow melting machine in the equipment shown;

[0024] Figure 4 is Figure 3 the internal structural schematic diagram of the ice melting and snow melting machine shown;

[0025] Figure 5 is Figure 2 the upward view of the top cover structure of the ice melting and snow melting machine in the equipment shown;

[0026] Figure 6 is Figure 2 the structural schematic diagram of the row-connected water purifier in the equipment shown;

[0027] Figure 7 is Figure 6 the front elevation view of the row-connected water purifier shown;

[0028] Figure 8 is Figure 6 the side elevation view of the row-connected water purifier in the middle;

[0029] Figure 9 is Figure 2 the front elevation view of the capacitive deionization water purifier in the equipment shown;

[0030] Figure 10 is Figure 9 the side elevation view of the capacitive deionization water purifier shown;

[0031] Figure 11 is Figure 2 the overall assembly drawing of the structure of the capacitive deionization water purifier in the equipment shown.

[0032] In the figure, 1 - ice melting and snow melting machine, 101 - first skid-mounted base, 102 - ice melting box, 103 - ice melting box top cover, 104 - fastener, 105 - ice feeding port, 106 - cleaning and maintenance port, 107 - slag removal port, 108 - hinge, 109 - handle, 110 - sealing bolt, 111 - spray water supply water pipe, 112 - water distribution valve, 113 - spray water supply quick joint, 114 - cleaning water supply interface, 115 - ice melting water supply port, 116 - spray return water interface, 117 - waste water discharge valve, 118 - ice feeding deceleration tank, 119 - ice melting slag filter tank, 120 - ice melting slag filter net, 121 - slag removal handle, 122 - cleaning spray pipe, 123 - slag guide plate, 124 - high-pressure sprayer;

[0033] 2 - Hot water boiler;

[0034] 3 - Row - connected water purifier, 301 - Second skid - mounted base, 302 - Primary row - connected water purifier, 303 - Secondary row - connected water purifier, 304 - Buffer and insulation water tank, 305 - Vacuum drainage assembly, 306 - First comprehensive control box, 307 - Purified water outlet pipe, 308 - Purified water supply valve, 309 - Purified water outlet valve, 310 - Storage water supply valve, 311 - First vacuum collection tank, 312 - First vacuum pump, 313 - First vacuum drainage and storage water tank, 314 - First vacuum drainage pipe, 315 - Purified water supply pipe, 316 - First vacuum drainage valve;

[0035] 4 - Capacitive deionization water purifier, 401 - Third skid - mounted base; 402 - Water purification framework; 403 - Second comprehensive control box; 404 - Desalination capacitive adsorber, 405 - Water supply pump, 406 - Second vacuum pump, 407 - Partition board, 408 - Clamp, 409 - Water supply inlet valve, 410 - Water supply pipe, 411 - Water supply control valve, 412 - Second vacuum collection tank, 413 - Second vacuum drainage pipe, 414 - Outlet control valve, 415 - Outlet pipe, 416 - Second vacuum drainage and storage water tank, 417 - Second vacuum drainage valve, 418 - Outlet quick - connector, 419 - Equipment protection cover;

[0036] 5. Melt water direct discharge pipe, 6 - Purified water direct discharge pipe. Specific implementation mode

[0037] The following further explains and illustrates the present invention in conjunction with the attached drawings and specific implementation modes.

[0038] A method for batch ice - melting and snow - melting water supply in high - altitude cold regions, the process of ice - melting and snow - melting water supply is as Figure 1 shown, and the equipment used is as Figure 2 shown.

[0039] The principle of ice - melting and snow - melting water supply is as follows: The crushed ice cubes and snow blocks are added to the ice - melting and snow - melting machine 1 for spray melting. If the quality of the melt water meets the standard, it is discharged for external use through the melt water direct discharge pipe 5; if the quality of the melt water does not meet the standard, it enters the row - connected water purifier 3 for filtration and purification to remove the suspended substances in the melt water; for the purified water produced after the purification of the row - connected water purifier 3, if the quality of the purified water meets the standard, it can be discharged for external use through the purified water direct discharge pipe 6, and if the quality of the purified water does not meet the standard, it enters the capacitive deionization water purifier 4 to further remove the metal salt ions in the water by means of electrostatic adsorption.

[0040] The judgment basis for water quality compliance is "Outdoor Water Supply Design Standard" (GB 50013 - 2018), "Sanitary Standard for Drinking Water" (GB 5749 - 2006) and "General Rules for Standard Inspection Methods of Drinking Water" (GB / T 5750.1 - 2006).

[0041] The hot water boiler 2 can adopt any one of the electric hot water boilers, fuel hot water boilers, gas hot water boilers and coal-fired hot water boilers in the prior art, as long as it can provide spray hot water for the ice and snow melting machine 1.

[0042] The following gives Figure 2 the structural components and working principle of the ice and snow melting water supply device shown.

[0043] I. Ice and Snow Melting Machine

[0044] As Figures 3 - 5 shown, the ice and snow melting machine includes a first skid-mounted base 101, on which an ice melting box 102 is installed. Inside the ice melting box 102, an ice feeding deceleration tank 118, an ice melting slag filtering tank 119, a cleaning spray pipe 122 and a slag guiding plate 123 are successively arranged from top to bottom. Both the ice feeding deceleration tank 118 and the slag guiding plate 123 are inclined. The lower end of the ice feeding deceleration tank 118 with a lower height position communicates with the upper end of the ice melting slag filtering tank 119. The ice melting slag filtering tank 119 has no bottom on the top and bottom and is open on the side, and the open end communicates with a slag removing port 107 arranged on the side wall of the ice melting box 102; A plurality of removable ice melting slag filtering nets 120 are installed in the ice melting slag filtering tank 119, and the pore diameters of the ice melting slag filtering nets 120 decrease successively from top to bottom; The periphery of the slag guiding plate 123 is hermetically fixed to the inner wall of the ice melting box 102 and encloses a water storage space with the inner wall of the ice melting box 102 above the slag guiding plate 123. This water storage space communicates with an ice melting water supply port 115, a spray return water interface 116 and a waste water discharge valve 117 arranged on the side wall of the ice melting box 102; A cleaning water supply interface 114 communicated with the cleaning spray pipe 122 is also installed on the side wall of the ice melting box 102.

[0045] A side cover plate is movably connected to the slag removing port 107, and a plurality of sealing bolts 110 are arranged on the side wall of the ice melting box 102 around the side cover plate.

[0046] The cleaning spray pipe 122 is arranged in a ring shape, and a plurality of spray nozzles facing the slag guiding plate 123 are arranged on the cleaning spray pipe 122.

[0047] A detachable ice melting box top cover 103 is arranged on the top of the ice melting box 102. The ice melting box top cover 103 is connected to the ice melting box 102 through a plurality of fasteners 104; An ice feeding port 105 and a cleaning and maintenance port 106 are arranged on the ice melting box top cover 103. Openable cover plates are arranged on both the ice feeding port 105 and the cleaning and maintenance port 106. Both cover plates are connected to the ice melting box top cover 103 through hinges 108, and handles 109 are fixedly connected to the cover plates; The ice feeding port 105 is located above the higher end of the ice feeding deceleration tank 18 in height position.

[0048] On the top cover 103 of the ice melting refrigerator, a plurality of vertical branch pipes are provided. A water distribution valve 112 is installed on all the branch pipes. The upper ends of all the branch pipes are communicated with the spray water supply pipe 111. A spray water supply quick connector 113 is also provided at the end of the spray water supply pipe 111. The lower ends of all the branch pipes pass through the top cover 103 of the ice melting refrigerator and extend into the ice melting refrigerator 102. A spray pipe is horizontally installed at the lower end of each branch pipe, and a plurality of high-pressure sprayers 124 with downward openings are installed on each spray pipe. Part of the high-pressure sprayers 124 are located above the ice throwing deceleration tank 118, and the other part of the high-pressure sprayers 124 are located above the ice melting slag filtering tank 119.

[0049] The ice throwing deceleration tank 118 has the same inclined direction as the slag guiding plate 123, and the slope rates are both 5% - 10%. The ice melting water supply port 115 is located above the waste water discharge valve 117, and the waste water discharge valve 117 is at the same horizontal plane as the lowest end of the slag guiding plate 123, which can ensure that the impurities precipitated on the slag guiding plate 123 can be discharged smoothly.

[0050] The first skid-mounted base 101 adopts a hollow structure, which is convenient for forklift loading or manual skidding.

[0051] The working process of the ice melting and snow melting machine is as follows:

[0052] Before use, cover the side cover plate on the slag removal port 107 and tighten a plurality of sealing bolts 110. Press the side cover plate against the side wall of the ice melting refrigerator 102 through the plurality of sealing bolts 110 to prevent water leakage.

[0053] Connect the spray water supply quick connector 113 to the hot water end of the hot water boiler 2. Open the valve on the spray water supply quick connector 113. The high-pressure and high-temperature spray hot water generated by the external spray water supply system sequentially passes through the spray water supply pipe 111 and the branch pipes and enters the high-pressure sprayers 124 and is sprayed into the ice melting refrigerator 102. At the same time, open the upper cover plate of the ice throwing port 105 and throw ice and snow blocks into the ice throwing deceleration tank 118. The ice and snow blocks are melted into water when contacting the high-pressure and high-temperature hot water sprayed by the high-pressure sprayers 124 during the process of sliding down along the ice throwing deceleration tank 118 and entering the ice melting slag filtering tank 119. When the melted water flows downward into the bottom of the ice melting refrigerator 102, it contacts the multi-layer ice melting slag filtering nets 120 arranged in the ice melting slag filtering tank 119 for filtration, and the insoluble impurities with different particle sizes in the melted water are filtered out step by step. The filtered melted water falls downward into the water storage space. After precipitation for a period of time, water quality detection is carried out. If the water quality meets the standard, most of the melted water enters the melted water direct discharge pipe 5 through the ice melting water supply port 115 for external discharge, and a small part of the melted water enters the cold water end of the hot water boiler 2 through the spray return water interface 116 as the spray water source. If the water quality does not meet the standard, most of the melted water is discharged through the ice melting water supply port 115 and enters the combined drainage water purifier 3 for further purification, and a small part of the melted water continues to enter the cold water end of the hot water boiler 2 through the spray return water interface 116 as the spray water (note: the hot water boiler 2 has low requirements for water quality, and its internal boiling and evaporation can also improve the spray water quality).

[0054] After long-term use, silt and other impurities will accumulate on the surface of the slag guide plate 123, and it is necessary to shut down for maintenance. Close the ice-dropping port 105, disconnect the external spray water supply system, and discharge all the melted water in the water storage space through the ice-melting water supply port 115. Open the cleaning water supply interface 114, and spray the external cleaning water source evenly on the slag guide plate 123 through the spray holes on the cleaning spray pipe 122, and then open the wastewater discharge valve 117 to release the muddy water wrapped in the slag, until the slag guide plate 123 is cleaned, close the cleaning water supply interface 114 to stop cleaning; during the cleaning process, open the top cover of the cleaning maintenance port 106 to observe the internal situation of the melting refrigerator 102. Once large particles of impurities are found blocking the wastewater outlet, immediately cut off the water supply and clear them.

[0055] During the above working process, the high-pressure sprayer 124 uses a conventional multi-hole nozzle to spray high-pressure and high-temperature hot water; the ice-dropping deceleration trough 118 is a square chute, and a plurality of ridge-shaped deceleration strips are evenly arranged on the bottom surface of the chute, and the deceleration strips are used to reduce the moving speed of ice and snow blocks, extend the running time of ice and snow blocks, and allow ice and snow blocks to fully melt. In addition, the ice-dropping deceleration trough 118 is inclined to prevent ice blocks from blocking the ice-dropping port 105.

[0056] There are five layers of ice-melting filter residue nets 120 arranged from top to bottom in the ice-melting filter residue tank 119, and the mesh apertures of the five layers of ice-melting filter residue nets 120 are 5mm, 2mm, 1mm, 0.5mm and 0.1mm from top to bottom, respectively, which can filter insoluble impurities of different particle sizes mixed in ice and snow blocks; the ice-melting filter residue nets 120 can be made of environmentally friendly PP material, and each layer of ice-melting filter residue nets is made of a hard frame and a filter net installed in the hard frame, which is easy to take and put, and a slag removal handle 121 is fixed to the hard frame. When slag removal is required, loosen the sealing bolt 110, open the side cover plate on the slag removal port 107, and remove the ice-melting filter residue net 120 from the ice-melting filter residue tank 119 by pulling the slag removal handle 121 to remove the filter residue trapped on the ice-melting filter residue net 120.

[0057] The slag guide plate 123 can be made of a smooth plastic plate, and the distance between its lower end and the ice-melting water supply port 115 is not less than 10 cm, which can better precipitate impurities and ensure that clean water flows out of the ice-melting water supply port 115.

[0058] 2. Row water purifier

[0059] like Figures 6 - 8As shown in the figure, the row-connected water purifier 3 includes a second skid-mounted base 301. The second skid-mounted base 301 is installed with a primary row-connected water purifier 302, a secondary row-connected water purifier 303, a buffer and insulation water tank 304, and a first comprehensive control box 306. The water inlet end of the primary row-connected water purifier 302 is connected with a water supply pipe for purified water 315. The water outlet end of the primary row-connected water purifier 302 is connected with the water inlet end of the secondary row-connected water purifier 303. The water outlet end of the secondary row-connected water purifier 303 is connected with a water outlet pipe for purified water 307. A purified water outlet valve 309 is provided on the water outlet pipe for purified water 307, and the water outlet pipe for purified water 307 is connected with the buffer and insulation water tank 304. A water storage and supply valve 310 is connected to the bottom of the buffer and insulation water tank 304. The first comprehensive control box 306 is respectively in signal connection with the primary row-connected water purifier 302 and the secondary row-connected water purifier 303.

[0060] A vacuum drainage assembly 305 is installed on the second skid-mounted base 301 beside the buffer and insulation water tank 304. The vacuum drainage assembly 305 includes a first vacuum collection tank 311, a first vacuum pump 312, and a first vacuum drainage and water storage tank 313. The water inlet end of the first vacuum collection tank 311 is connected with a first vacuum drainage pipe 314, and the first vacuum drainage pipe 314 is communicated with the water outlet pipe for purified water 307. The water outlet end of the first vacuum collection tank 311 is connected with the first vacuum drainage and water storage tank 313. A vacuum drainage valve 316 is arranged at the bottom of the first vacuum drainage and water storage tank 313. An exhaust pipe is provided at the top of the first vacuum collection tank 311, and the end of the exhaust pipe is connected with the first vacuum pump 312. The first vacuum pump 312 and the first vacuum collection tank 311 are respectively in signal connection with the first comprehensive control box 306.

[0061] The working process of the row-connected water purifier is as follows: Connect the ice melting water supply port 115 with the water supply pipe for purified water 315, open the purified water supply valve 308 to inject the ice and snow melting water into the primary row-connected water purifier 302, and start the primary row-connected water purifier 302 and the secondary row-connected water purifier 303 through the first comprehensive control box 306. After the ice and snow melting water is preliminarily purified by the primary row-connected water purifier 302, it flows into the secondary row-connected water purifier 303 for secondary purification (in practical applications, a booster pump can be added between the primary row-connected water purifier 302 and the secondary row-connected water purifier 303 to supplement the pressure drop). Then open the purified water outlet valve 309 and close the vacuum inlet valve 317 in front of the first vacuum collection tank 311. The purified melting water flows into the buffer and insulation water tank 304 through the water outlet pipe for purified water 307 for storage, and is discharged externally by opening the water storage and supply valve 310 when needed.

[0062] After the water purification is completed, close the purified water supply valve 308 and the purified water outlet valve 309 and open the vacuum inlet valve 317 in front of the first vacuum collection tank 311 to ensure that the residual water can enter the first vacuum collection tank 311 along the first vacuum drain pipe 314 after starting the first vacuum pump 312 to pump vacuum; the first vacuum collection tank 311 is used to ensure vacuum and collect residual water. Generally, the lower 1 / 3 of the tank volume is used to collect residual water, and the remaining upper 2 / 3 volume is used to ensure vacuum; the negative pressure in the first vacuum collection tank 311 is generally set at -55 to -65 kPa. When the upper limit of the pressure in the first vacuum collection tank 311 is reached, the first vacuum pump 312 automatically stops; when the pressure drops to the lower limit of the pressure in the first vacuum collection tank 311, the first vacuum pump 312 automatically starts; at the same time, a check valve (not shown in the figure) is provided between the first vacuum pump 312 and the first vacuum collection tank 311 to ensure that when the first vacuum pump 312 stops running, the gas will not flow back and backflush; when the water level in the first vacuum collection tank 311 reaches the set height, the water pump (not shown in the figure) provided between the first vacuum collection tank 311 and the first vacuum drainage storage tank 313 automatically starts to pump the stored water in the first vacuum collection tank 311 into the first vacuum drainage storage tank 313 for storage. At the same time, a check valve is also installed at the outlet of the first vacuum collection tank 311 to prevent the stored water in the first vacuum drainage storage tank 313 from flowing back. A safety valve is also provided at the top of the first vacuum collection tank 311 to prevent the negative pressure in the tank from being too large when the vacuum pump is working. The stored water in the first vacuum drainage storage tank 313 is essentially purified water. Although it cannot be directly drunk, it can be used as daily washing water and can be discharged and used by opening the first vacuum drainage valve 316 when needed.

[0063] Before using the vacuum drainage assembly, a sealing test is first carried out, that is, with the purified water supply valve 308 and the purified water outlet valve 309 closed, start the first vacuum pump 312 to make the negative pressure in the first vacuum collection tank 311 reach -65 kPa, then close the first vacuum pump 312, and the negative pressure does not exceed 10% after one hour.

[0064] In the above working process, both the primary series drainage water purifier 302 and the secondary series drainage water purifier 303 adopt the Zhongjin Huilong SNSJ03-400 type outdoor water purification device; the buffer insulation water tank 304 is a water storage device after the series drainage water purifier starts to purify water. The buffer insulation water tank 304 is made of double-layer stainless steel, and the stainless steel sandwich is filled with heat insulation materials such as foam for heat insulation to prevent the purified water inside the buffer insulation water tank 304 from freezing. The first comprehensive control box 306 is an ordinary PLC control cabinet, with PLC control elements built in, and controls the coordinated operation of the primary series drainage water purifier 302, the secondary series drainage water purifier 303, the first vacuum collection tank 311 and the first vacuum pump 312 through a combination of manual and automatic control. For the rest not described, equivalents that achieve the same function or effect in the prior art are used.

[0065] III. Capacitive Deionization Water Purifier

[0066] As Figures 9 - 11 shown, the capacitive deionization water purifier 4 includes a third skid-mounted base 401. A water purification framework 402 and a second comprehensive control box 403 are installed on the third skid-mounted base 401. A partition 407 is arranged inside the water purification framework 402. A plurality of clamps 408 are arranged side by side on both sides of the partition 407. A desalination capacitive adsorber 404 is installed on the clamp 408. A water supply pipe 410 is connected to the water inlet end of the desalination capacitive adsorber 404. A water supply control valve 411 is also provided on the water supply pipe 410. And the end of the water supply pipe 410 is communicated with the water outlet end of a water supply pump 405 installed on the third skid-mounted base 401. The water inlet end of the water supply pump 405 is connected with a water inlet pipe, and a water supply inlet valve 409 is arranged on this water inlet pipe; the water outlet end of the desalination capacitive adsorber 404 is connected with a water outlet pipe 415. A water outlet quick connector 418 is arranged at the end of the water outlet pipe 415. The desalination capacitive adsorber 404 and the water supply pump 405 are respectively connected with the second comprehensive control box 403 in signal connection.

[0067] A water outlet control valve 414 is installed on the water outlet pipe 415. A second vacuum drain pipe 413 is connected to the water outlet pipe 415 between the water outlet control valve 414 and the desalination capacitive adsorber 404. The other end of the second vacuum drain pipe 413 is communicated with the water inlet end of a second vacuum collection tank 412 arranged on the third skid-mounted base 401. The water outlet end of the second vacuum collection tank 412 is connected with a second vacuum drainage water storage tank 416. A second vacuum drain valve 417 is arranged at the bottom of the second vacuum drainage water storage tank 416; an exhaust pipe is also arranged at the top of the second vacuum collection tank 412. The end of this exhaust pipe is connected with a second vacuum pump 406. The second vacuum pump 406 and the second vacuum collection tank 412 are respectively connected with the second comprehensive control box 403 in signal connection.

[0068] The second comprehensive control box 403 is a comprehensive controller (ordinary PLC control box) of the vacuum drainage anti-freezing device for brackish water purification, and controls the coordinated operation of components such as the desalination capacitive adsorber 404, the water supply pump 405, and the second vacuum pump 406 through a combination of manual and automatic control methods.

[0069] The equipment protection cover 419 is installed outside the water purification framework 402, and functions to protect components such as the desalination capacitive adsorber 404, the water supply pump 405, the second vacuum pump 406, the second vacuum collection tank 412, and the second vacuum drainage water storage tank 416, as well as their pipelines and control valves.

[0070] The working process of the capacitive deionization water purifier 4 is as follows:

[0071] Connect the water inlet end of the water supply pump 405 of the desalination and water purification device to the buffer and heat preservation water tank 304 of the continuous blowdown water purifier 3. Open the water supply inlet valve 409 and the water supply control valve 411, and start the water supply pump 405 to pump the melted water into the desalination capacitive adsorber 404 through the water supply pipe 410. Start the desalination capacitive adsorber 404 to perform electro - desalination on the melted water. Then open the water outlet control valve 414 and send out the desalinated and purified melted water through the water outlet pipe 415. The end of the water outlet pipe 415 is equipped with a water outlet quick - connector 418, which is convenient for connecting to the external water supply pipeline. Note that during this process, the second vacuum pump 406 does not work and no water body enters the second vacuum collection tank 412. The desalination capacitive adsorber 404 adopts a CDI capacitive desalination device or an MCDI membrane capacitive desalination device in the prior art. Specifically, an IS - 2H type membrane capacitive desalination device produced by Beijing Qingshui Lantian Technology Co., Ltd. can be used.

[0072] After desalination and water purification, the second vacuum pump 406, the second vacuum collection tank 412 and the second vacuum drainage and water storage tank 416 can be used to perform vacuum drainage on the desalination and water purification device. The specific process is as follows: Close the water supply inlet valve 409 and the water outlet control valve 414, and open the valve at the water inlet end of the second vacuum collection tank 412 to ensure that the residual water can enter the second vacuum collection tank 412 along the second vacuum drainage pipe 413 after starting the second vacuum pump 406 to pump vacuum. The second vacuum collection tank 412 is used to ensure vacuum and collect residual water. The negative pressure in the tank is generally set at - 55~65 kPa. When the negative pressure is lower than the lower limit, the second vacuum pump 406 starts automatically. When the negative pressure reaches the set upper limit, the second vacuum pump 406 stops running automatically. In this way, the vacuum degree in the second vacuum collection tank 412 is kept constant to meet the use requirements. At the same time, a check valve (not shown in the figure) is provided between the second vacuum pump 406 and the second vacuum collection tank 412 to ensure that when the second vacuum pump 406 stops running, the gas will not flow back and backflush. When the water level in the second vacuum collection tank 412 reaches the set height, a water pump (not shown in the figure) installed between the second vacuum collection tank 412 and the second vacuum drainage and water storage tank 416 starts to run, pumps the stored water into the second vacuum drainage and water storage tank 416 for centralized storage. At the same time, a check valve is also installed at the water outlet of the second vacuum collection tank 412 to prevent the stored water in the second vacuum drainage and water storage tank 416 from flowing back. A safety valve is also provided at the top of the second vacuum collection tank 412, and its function is to prevent the negative pressure in the tank from being too large when the vacuum pump is working.

[0073] Before using the vacuum drainage assembly, a sealing test is first carried out, that is, with the water supply inlet valve 409 and the water outlet control valve 414 closed, start the second vacuum pump 406 to make the negative pressure in the second vacuum collection tank 412 reach - 65 kPa, then close the second vacuum pump 406, and the negative pressure does not decrease by more than 10% after one hour.

[0074] Considering the relatively low temperatures in high-altitude and cold regions, the above-mentioned equipment should be installed in a simple station building and equipped with auxiliary heating equipment such as warm air heaters and coal stoves to keep the row-mounted water purifiers and capacitive deionization water purifiers warm.

[0075] Upon inspection and verification, the applicable conditions for the batch ice and snow melting water supply method in high-altitude cold regions are required:

[0076] 1) Ambient temperature: -40 to 40 °C

[0077] 2) Operating temperature of the water purification system: 0 to 60 °C

[0078] 3) Applicable altitude: ≤ 5500 m

[0079] 4) Water treatment temperature of the water purification system: not less than 10 °C

[0080] 5) The ice and snow melting rate is 0.6 m³ / h, and the actual heating power is about 80 kW, which can meet the daily use requirements of 300 people (15 L / person·day).

[0081] Among them, the water purification system includes a row-mounted water purifier 3 and a capacitive deionization water purifier 4.

Claims

1. A method for batch ice and snow melting and water supply in high-altitude cold regions, characterized in that, The method for supplying water by melting ice and snow is carried out according to the following steps: 1) Take the ice and snow melting water supply equipment, which includes an ice and snow melting machine (1), a row-connected water purifier (3) and a capacitive deionization water purifier (4) connected in sequence along the water flow direction. A hot water boiler (2) for providing hot water for spraying and melting ice is connected to the ice and snow melting machine (1); in addition, a melt water direct discharge pipe (5) is also connected to the ice and snow melting machine (1), and a purified water direct discharge pipe (6) is connected to the row-connected water purifier (3). Both the melt water direct discharge pipe (5) and the purified water direct discharge pipe (6) can supply qualified water to the outside; The ice and snow melting machine (1) includes a first skid-mounted base (101). A melting ice box (102) is installed on the first skid-mounted base (101). A melting ice box top cover (103) is installed on the melting ice box (102). An ice feeding deceleration tank (118), a melting ice filter residue tank (119), a cleaning spray pipe (122) and a slag guiding plate (123) are successively arranged in the melting ice box (102) from top to bottom. Both the ice feeding deceleration tank (118) and the slag guiding plate (123) are inclined. Multiple nozzles facing the slag guiding plate (123) are arranged on the cleaning spray pipe (122); the lower end of the ice feeding deceleration tank (118) at a lower height position is communicated with the upper end of the melting ice filter residue tank (119). The melting ice filter residue tank (119) has no bottom on the top and bottom and is open on the side, and the open end is communicated with a slag removal port (107) arranged on the side wall of the melting ice box (102); multiple layers of removable melting ice filter residue nets (120) are installed in the melting ice filter residue tank (119), and the pore diameters of the melting ice filter residue nets (120) decrease successively from top to bottom; the periphery of the slag guiding plate (123) is hermetically fixed to the inner wall of the melting ice box (102) and encloses a water storage space with the inner wall of the melting ice box (102) above the slag guiding plate (123). The water storage space is communicated with a melting ice water supply port (115), a spray return water interface (116) and a waste water discharge valve (117) arranged on the side wall of the melting ice box (102); a cleaning water supply interface (114) communicated with the cleaning spray pipe (122) is also installed on the side wall of the melting ice box (102); An ice feeding port (105) is arranged on the melting ice box top cover (103), and the ice feeding port (105) is located above the higher end of the ice feeding deceleration tank (118) in height position; multiple vertical branch pipes are arranged on the melting ice box top cover (103). The upper ends of the branch pipes are connected with a spray water supply water pipe (111), and the lower ends of the branch pipes are communicated with a high-pressure sprayer (124) arranged inside the melting ice box top cover (103). The high-pressure sprayer (124) is located above the ice feeding deceleration tank (118) and the melting ice filter residue tank (119). A spray water supply quick joint (113) is also arranged at the end of the spray water supply water pipe (111); The row-connected water purifier (3) includes a second skid-mounted base (301). The primary row-connected water purifier (302), the secondary row-connected water purifier (303), a buffer and insulation water tank (304), and a first comprehensive control box (306) are installed on the second skid-mounted base (301). The water inlet end of the primary row-connected water purifier (302) is connected to a water purification feed pipe (315). The water outlet end of the primary row-connected water purifier (302) is connected to the water inlet end of the secondary row-connected water purifier (303). The water outlet end of the secondary row-connected water purifier (303) is connected to a water purification outlet pipe (307). A water purification outlet valve (309) is provided on the water purification outlet pipe (307). The end of the water purification outlet pipe (307) is connected to the buffer and insulation water tank (304). A water storage and supply valve (310) is provided at the bottom of the buffer and insulation water tank (304). The first comprehensive control box (306) is respectively in signal connection with the primary row-connected water purifier (302) and the secondary row-connected water purifier (303). The capacitive deionization water purifier (4) includes a third skid-mounted base (401). A water purification framework (402) and a second comprehensive control box (403) are installed on the third skid-mounted base (401). An equipment protection cover (419) is installed outside the water purification framework (402). A partition plate (407) is installed inside the water purification framework (402). A plurality of clamps (408) are arranged side by side on both sides of the partition plate (407). A desalination capacitive adsorber (404) is installed on the clamp (408). The water inlet end of the desalination capacitive adsorber (404) is connected to a water supply pipe (410). A water supply control valve (411) is also provided on the water supply pipe (410). The end of the water supply pipe (410) is communicated with the water outlet end of a water supply pump (405) installed on the third skid-mounted base (401). The water inlet end of the water supply pump (405) is connected to a water inlet pipe, and a water supply inlet valve (409) is provided on this water inlet pipe. The water outlet end of the desalination capacitive adsorber (404) is connected to a water outlet pipe (415). A water outlet quick connector (418) is provided at the end of the water outlet pipe (415). The desalination capacitive adsorber (404) and the water supply pump (405) are respectively in signal connection with the second comprehensive control box (403). 2) Connect the spray water supply pipe (111) on the ice and snow melting machine (1) to the hot water end of the hot water boiler (2). The sprayed hot water is sprayed into the ice melting box (102) through the high-pressure sprayer (124). At the same time, open the upper cover plate of the ice feeding port (105) and put ice cubes into the ice feeding deceleration tank (118). The ice cubes come into contact with the high-temperature and high-pressure hot water sprayed by the high-pressure sprayer (124) and melt into water during the process of sliding down along the ice feeding deceleration tank (118) and entering the ice melting slag filtering tank (119). When the melted water flows downward and enters the bottom of the ice melting box (102), it contacts and filters through the multi-layer ice melting slag filtering nets (120) arranged in the ice melting slag filtering tank (119), and gradually filters out the insoluble impurities in the melted water. The filtered melted water falls downward into the water storage space. After precipitation for a period of time, water quality detection is carried out. If the water quality meets the standard, most of the melted water enters the melted water direct discharge pipe (5) through the ice melting water supply port (115) and is discharged externally, and a small part of the melted water enters the cold water end of the hot water boiler (2) through the spray return water interface (116) as the spray water source; if the water quality does not meet the standard, most of the melted water enters the combined drainage water purifier (3) through the ice melting water supply port (115) for further purification, and a small part of the melted water continues to enter the cold water end of the hot water boiler (2) through the spray return water interface (116) as the spray water source; 3) Inject the unqualified melted water discharged from the ice melting water supply port (115) into the primary combined drainage water purifier (302). Start the primary combined drainage water purifier (302) and the secondary combined drainage water purifier (303) through the first comprehensive control box (306). After the ice and snow melted water is preliminarily purified by the primary combined drainage water purifier (302), it flows into the secondary combined drainage water purifier (303) for secondary purification; then open the purified water outlet valve (309), and the purified melted water flows into the buffer heat preservation water tank (304) through the purified water outlet pipe (307) for storage. When needed, open the water storage water supply valve (310) for external discharge; for the purified water discharged through the water storage water supply valve (310), if the water quality meets the standard, it can be directly discharged through the purified water direct discharge pipe (6) for use, and if the water quality does not meet the standard, it enters the capacitive deionization water purifier (4) for further purification; 4) Connect the water inlet end of the water supply pump (405) to the water outlet end of the buffer heat preservation water tank (304). Open the water supply inlet valve (409) and the water supply control valve (411). Start the water supply pump (405) through the second comprehensive control box (403) to pump the unqualified purified water into the desalination capacitive adsorber (404) through the water supply pipe (410), and then start the desalination capacitive adsorber (404) to perform electro-de-salination on the purified water. Then open the water outlet control valve (414) to send out the desalinated and purified melted water through the water outlet pipe (415).

2. The batch ice and snow melting water supply method in high altitude cold regions according to claim 1, characterized in that: The ice feeding deceleration tank (118) is a chute, and a plurality of rib-shaped deceleration strips are uniformly arranged on the bottom surface of the chute.

3. The method for batch ice and snow melting for water supply in high-altitude cold regions according to claim 1, characterized in that: A side cover plate is movably connected to the slag removal port (107), and a plurality of sealing bolts (110) are arranged on the side wall of the ice melting box (102) around the side cover plate.

4. The method for batch ice and snow melting and water supply in high altitude cold regions according to claim 1, characterized in that: The ice melting water supply port (115) is located above the waste water discharge valve (117).

5. The batch ice and snow melting water supply method in high altitude cold regions according to claim 1, characterized in that: The distance between the ice melting water supply port (115) and the lower end of the slag guiding plate (123) in terms of height position is not less than 10 cm.

6. The method for batch ice and snow melting and water supply in high altitude cold regions according to claim 1, characterized in that: A vacuum drainage assembly (305) is installed beside the buffer insulation water tank (304). The vacuum drainage assembly (305) includes a first vacuum collection tank (311), a first vacuum pump (312), and a first vacuum drainage water storage tank (313). The water inlet end of the first vacuum collection tank (311) is connected with a first vacuum drainage pipe (314), and the first vacuum drainage pipe (314) is communicated with the purified water outlet pipe (307). The water outlet end of the first vacuum collection tank (311) is connected with the first vacuum drainage water storage tank (313), and a first vacuum drainage valve (316) is arranged at the bottom of the first vacuum drainage water storage tank (313). An exhaust pipe is further arranged at the top of the first vacuum collection tank (311), and the end of the exhaust pipe is connected with the first vacuum pump (312). The first vacuum pump (312) and the first vacuum collection tank (311) are respectively in signal connection with the first comprehensive control box (306).

7. The batch ice and snow melting water supply method in high altitude cold regions according to claim 1, characterized in that: A water outlet control valve (414) is installed on the water outlet pipe (415). A second vacuum drainage pipe (413) is connected to the water outlet pipe (415) on the upstream side of the water outlet control valve (414). The other end of the second vacuum drainage pipe (413) is communicated with the water inlet end of a second vacuum collection tank (412) arranged on the third skid-mounted base (401). The water outlet end of the second vacuum collection tank (412) is connected with a second vacuum drainage water storage tank (416), and a second vacuum drainage valve (417) is arranged at the bottom of the second vacuum drainage water storage tank (416). An exhaust pipe is further arranged at the top of the second vacuum collection tank (412), and the end of the exhaust pipe is connected with a second vacuum pump (406). The second vacuum pump (406) and the second vacuum collection tank (412) are respectively in signal connection with the second comprehensive control box (403).

8. The batch ice and snow melting water supply method in high altitude cold regions according to claim 1, characterized in that: The hot water boiler (2) is one of an electric hot water boiler, an oil-fired hot water boiler, a gas-fired hot water boiler, or a coal-fired hot water boiler.

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