CN111395248A - Switch snow melting and anti-icing method and system - Google Patents
Switch snow melting and anti-icing method and system Download PDFInfo
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- CN111395248A CN111395248A CN202010356996.5A CN202010356996A CN111395248A CN 111395248 A CN111395248 A CN 111395248A CN 202010356996 A CN202010356996 A CN 202010356996A CN 111395248 A CN111395248 A CN 111395248A
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- 238000002844 melting Methods 0.000 title claims abstract description 38
- 230000008018 melting Effects 0.000 title claims abstract description 23
- 238000000034 method Methods 0.000 title claims abstract description 13
- 239000007788 liquid Substances 0.000 claims abstract description 147
- 238000005507 spraying Methods 0.000 claims abstract description 30
- 230000000087 stabilizing effect Effects 0.000 claims abstract description 28
- 238000010438 heat treatment Methods 0.000 claims abstract description 11
- 239000012530 fluid Substances 0.000 claims description 39
- 230000001105 regulatory effect Effects 0.000 claims description 19
- 238000012544 monitoring process Methods 0.000 claims description 4
- 230000000712 assembly Effects 0.000 claims description 3
- 238000000429 assembly Methods 0.000 claims description 3
- 239000013589 supplement Substances 0.000 claims description 3
- 238000005485 electric heating Methods 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 6
- 230000008014 freezing Effects 0.000 abstract description 5
- 238000007710 freezing Methods 0.000 abstract description 5
- 239000007921 spray Substances 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000001502 supplementing effect Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000011550 stock solution Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000013022 venting Methods 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
- E01H8/00—Removing undesirable matter from the permanent way of railways; Removing undesirable matter from tramway rails
- E01H8/02—Methods or apparatus for removing ice or snow from railway tracks, e.g. using snow-ploughs ; Devices for dislodging snow or ice which are carried or propelled by tramway vehicles ; Moving or removing ballast
- E01H8/08—Methods or apparatus for removing ice or snow from railway tracks, e.g. using snow-ploughs ; Devices for dislodging snow or ice which are carried or propelled by tramway vehicles ; Moving or removing ballast by application of heat, e.g. by means of heated clearing instruments, melting in situ; Clearing devices which melt the dislodged snow; Clearing exclusively by means of rays or streams or gas or stream, or by suction
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
- E01H8/00—Removing undesirable matter from the permanent way of railways; Removing undesirable matter from tramway rails
- E01H8/10—Removing undesirable matter from rails, flange grooves, or the like railway parts, e.g. removing ice from contact rails, removing mud from flange grooves
- E01H8/105—Pneumatically or hydraulically loosening, removing or dislodging undesirable matter, e.g. removing by blowing, flushing, suction; Application of melting liquids; Loosening or removing by means of heat, e.g. cleaning by plasma torches, drying by burners
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- Plasma & Fusion (AREA)
- Buildings Adapted To Withstand Abnormal External Influences (AREA)
Abstract
The invention relates to the field of rail transit anti-icing systems, and discloses a turnout snow melting anti-icing method and system, which comprise a liquid storage module, a pressurizing module, a pressure stabilizing module, a spraying module and a backflow module, wherein the liquid storage module is provided with a liquid suction port and a backflow port; a liquid suction port of the liquid storage module is sequentially connected with the pressurizing module, the pressure stabilizing module and the spraying module through a lower pipeline; the return port of the liquid storage module is connected with the return module through an upper pipeline. The invention sprays the anti-icing liquid to the turnout through automatic control, and particularly aims at the parts of a slide plate, a switch rail, the tail end of a stock rail, a connecting rod and the like which cannot be covered by the existing heating system. For some parts of the turnout which are easy to freeze due to frost, the effect of preventing the parts of the turnout which are easy to freeze from freezing is achieved through the electric heating snow melting and ice removing device, and compared with the existing mode that electric heating snow melting is mainly adopted and manual snow removing and ice removing are assisted, the electric heating snow melting and ice removing device is higher in snow melting and ice preventing efficiency and longer in ice preventing duration.
Description
Technical Field
The invention relates to the field of rail transit anti-icing systems, in particular to a turnout snow-melting anti-icing method and system.
Background
The turnout is an important component of railway transportation equipment, is a control device for a train to transfer from one track to or cross another track, and is directly related to the traffic safety, so the technical state requirement on the turnout is very strict. In winter, snow is accumulated on turnouts and is frozen, so that turnouts can not be flexibly switched, switch rails are not closely attached to stock rails, signal machines cannot be locked or opened, and train receiving and dispatching operation or shunting operation is directly influenced. Every time when snowfall and ice are formed in winter, a railway department has to organize a large number of personnel to remove snow and ice for turnouts, but the potential safety hazard of driving still exists.
The switch snow removing method mainly uses electric heating snow melting as a main part and manual snow removing and deicing as an auxiliary part. But the electric heating strip can not cover the switch completely, so in winter snowing weather, the switch still can break down because of snow and ice, especially the position that the electric heating strip can not cover, snow easily takes place and freezes: the slide plate, the bottoms of the switch rails and the stock rails, the heads of the stock rails and the switch rails, the switch machine, the connecting rods and other parts have serious snow accumulation and icing.
Disclosure of Invention
The invention aims to provide a turnout snow melting and ice preventing method and system, so as to solve the problems in the prior art.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
a turnout snow melting and ice preventing system comprises a liquid storage module (1), a pressurizing module (2), a pressure stabilizing module (3), a spraying module (4) and a backflow module (5), wherein the liquid storage module (1) is provided with a liquid suction port (103) and a backflow port (104); a liquid suction port (103) of the liquid storage module (1) is sequentially connected with the pressurizing module (2), the pressure stabilizing module (3) and the spraying module (4) through a lower pipeline; the return port (104) of the liquid storage module (1) is connected with the return module (5) through an upper pipeline.
Further, stock solution module (1) is including liquid storage pot (101) that is used for storing anti-icing liquid (100), and the outside of liquid storage pot (101) is equipped with heat preservation (102), and the inside of liquid storage pot (101) is equipped with heater (105) that are used for heating anti-icing liquid (100), and liquid storage pot (101) are equipped with temperature sensor (108) that are used for measuring anti-icing liquid (100) temperature to and be used for measuring high level sensor (107) and low level sensor (109) of anti-icing liquid (100) liquid level.
Further, the pressurizing module (2) comprises a first three-way pipeline (202) and a pressurizing pump (200); the first three-way pipeline (202) comprises a first pipe orifice, a second pipe orifice and a third pipe orifice; a first pipe orifice of the first three-way pipeline (202) is connected with the liquid suction port (103) through a first valve (201), a second pipe orifice of the first three-way pipeline (202) is connected with a liquid inlet of the booster pump (200), and a third pipe orifice of the first three-way pipeline (202) is connected with a supplement tank through a connecting pipe (204); the connecting pipe (204) is provided with a second valve (203); a liquid outlet of the pressure pump (200) is connected with a section of hose (205), one end of the hose (205) is connected with the liquid outlet of the pressure pump (200), and the other end of the hose (205) is connected with the pressure stabilizing module (3) through a one-way valve (206); the pressure stabilizing module (3) comprises a third pipeline (209), a pressure stabilizing tank (207), a pressure gauge (208) and a pressure regulating valve (301), wherein the pressure stabilizing tank (207), the pressure gauge and the pressure regulating valve are sequentially arranged on the third pipeline (209); the voltage stabilizing module (3) is connected with the spraying module (4).
Furthermore, the spraying module (4) comprises a plurality of branch pipelines (303), each branch pipeline (303) is connected with a nozzle assembly (403) through a fourth pipeline (402), the fourth pipeline (402) is provided with an electromagnetic valve (401), and the nozzle assemblies (403) are used for spraying the anti-icing liquid (100) to different positions of the turnout.
Furthermore, a second three-way pipeline (501) is arranged between the pressure regulating valve (301) and the spraying module (4), a first pipe orifice of the second three-way pipeline (501) is connected with the pressure regulating valve (301), a second pipe orifice of the second three-way pipeline (501) is connected with the spraying module (4), and a third pipe orifice of the second three-way pipeline (501) is connected with the backflow module (5).
Further, the backflow module (5) comprises a fifth pipeline (502), the fifth pipeline (502) is provided with a third valve (503) and a backflow module electromagnetic valve (505), one end of the backflow module electromagnetic valve (505) is connected with the backflow port (104), and the other end of the backflow module electromagnetic valve (505) is connected with one end of the third valve (503); the other end of the third valve (503) is connected with a third pipe orifice of the second three-way pipeline (501).
Further, the second valve (203) is a normally closed valve, and the first valve (201) and the third valve (503) are normally open valves.
Furthermore, the top of the liquid storage tank (101) is provided with an air outlet (106) for exhausting air in the liquid storage tank (101).
The invention also provides a switch snow-melting and ice-preventing method, which comprises the following steps:
s1), starting a heater (105), heating the anti-icing fluid in the liquid storage tank (101) to a set temperature, measuring the liquid level of the liquid storage tank (101) in real time through a high liquid level sensor (107) and a low liquid level sensor (109), setting a liquid level low threshold value, judging whether the liquid level of the liquid storage tank (101) is lower than the liquid level low threshold value, and if not, entering the step S3); if yes, go to step S2);
s2) opening the second valve (203) and the backflow module electromagnetic valve (505), closing the first valve (201), starting the pressure pump (200), replenishing the anti-icing fluid of the replenishing tank into the liquid storage tank (101) through the pressure pump, setting a liquid level high threshold value, stopping the pressure pump (200) when the liquid level of the liquid storage tank (101) reaches the liquid level high threshold value, closing the backflow module electromagnetic valve (505) and the second valve (203), opening the first valve (201), and entering the step S3;
s3) judging whether the anti-icing liquid needs to be sprayed to the snow-prone and icing part of the turnout, and if not, entering the step S5); if yes, monitoring the pressure in the surge tank (207) through a pressure gauge (208), setting a pressure low threshold value and a pressure high threshold value, and starting a pressure pump (200) to pressurize the anti-icing fluid in the liquid storage tank (101) and convey the anti-icing fluid into the surge tank (207) when the pressure in the surge tank (207) is lower than the pressure low threshold value; when the pressure in the pressure stabilizing tank (207) reaches a pressure high threshold value, the pressurization pump (200) is stopped;
s4) adjusting the anti-icing fluid to working pressure through the pressure regulating valve (301), opening the electromagnetic valve (401), spraying the anti-icing fluid to different parts of the turnout, and returning to the step S3);
s5), closing the electromagnetic valve (401), opening the backflow module electromagnetic valve (505), emptying the anti-icing fluid in the third pipeline (209), and returning the anti-icing fluid in the third pipeline (209) to the liquid storage tank (101); judging whether the anti-icing fluid in the third pipeline (209) is emptied, if so, closing the electromagnetic valve (505) of the backflow module, and returning to the step S1); if not, repeating the step.
The invention has the beneficial effects that: the invention sprays the anti-icing liquid to the turnout through automatic control, and particularly plays a good snow-melting anti-icing effect on the turnout aiming at the parts such as a slide plate, a switch rail, the tail end of a stock rail, a connecting rod and the like which cannot be covered by the existing heating system. By spraying the anti-icing liquid, the snow melting function is achieved, and the freezing point of a mixture formed by the anti-icing liquid is low, so that secondary icing is prevented. For some parts of the turnout which are easy to freeze due to frost, the effect of preventing the parts of the turnout which are easy to freeze from freezing is achieved through the electric heating snow melting and deicing device, and compared with the existing mode that electric heating snow melting is mainly adopted and manual snow removing and deicing are assisted, the electric heating snow melting and deicing device is higher in snow melting and deicing efficiency and longer in deicing duration.
Drawings
Fig. 1 is a schematic structural diagram of a switch snow-melting and ice-preventing system provided by the first embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention. It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order, and it should be understood that the terms so used are interchangeable under appropriate circumstances and are merely used to describe the distinguishing manner in which the embodiments of the present invention distinguish between similar elements. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of elements is not necessarily limited to those elements, but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
In the first embodiment, a turnout snow melting and ice preventing system, as shown in fig. 1, includes a liquid storage module 1, a pressurization module 2, a pressure stabilizing module 3, a spraying module 4 and a backflow module 5, wherein the liquid storage module 1 is provided with a liquid suction port 103 and a backflow port 104; the liquid suction port 103 of the liquid storage module 1 is sequentially connected with the pressurizing module 2, the pressure stabilizing module 3 and the spraying module 4 through a lower pipeline; the return port 104 of the liquid storage module 1 is connected with the return module 5 through an upper pipeline.
The liquid storage module 1 comprises a liquid storage tank 101 for storing anti-icing liquid 100, a heat insulation layer 102 is arranged outside the liquid storage tank 101, and the heat insulation layer 102 outside the liquid storage tank 101 can effectively reduce heat loss. A heater 105 for heating the anti-icing fluid 100 is arranged inside the liquid storage tank 101, and the heater 105 is arranged in the liquid storage tank 101 and used for heating the anti-icing fluid 100 and maintaining the anti-icing fluid 100 within a preset temperature range. The reservoir tank 101 is provided with a temperature sensor 108 for measuring the temperature of the anti-icing liquid 100, and a high level sensor 107 and a low level sensor 109 for measuring the level of the anti-icing liquid 100.
The pressurizing module 2 comprises a first three-way pipeline 202 and a pressurizing pump 200; the first three-way pipe 202 comprises a first pipe orifice, a second pipe orifice and a third pipe orifice; a first pipe orifice of the first three-way pipeline 202 is connected with the liquid suction port 103 through a first valve 201, a second pipe orifice of the first three-way pipeline 202 is connected with a liquid inlet of the booster pump 200, and a third pipe orifice of the first three-way pipeline 202 is connected with a supplement tank through a connecting pipe 204; the connecting pipe 204 is provided with a second valve 203; a section of hose 205 is connected to a liquid outlet of the booster pump 200, one end of the hose 205 is connected to the liquid outlet of the booster pump 200, and the other end of the hose 205 is connected to the pressure stabilizing module 3 through a one-way valve 206; the pressure stabilizing module 3 comprises a third pipeline 209, a pressure stabilizing tank 207, a pressure gauge 208 and a pressure regulating valve 301, wherein the pressure stabilizing tank 207, the pressure gauge 208 and the pressure regulating valve 301 are sequentially arranged on the third pipeline 209; the voltage stabilizing module 3 is connected with the spraying module 4. The present invention can prevent the influence of system pressure shock on the pressurizing pump 200 by providing the check valve 206, and in addition, can prevent the reverse flow of the ice liquid in the surge tank 207. The anti-icing fluid 100 is sucked from the fluid suction port 103 by the pressure pump 200, pressurized and then delivered to the surge tank 207 for storage, and the pressure in the surge tank 207 is monitored by the pressure gauge 208.
The invention also comprises a pressure regulating module 3, wherein the pressure regulating module 3 comprises a main pipeline 302, a pressure regulating valve 301 is arranged on the main pipeline 302, and the pressure regulating valve 301 is used for stabilizing the high-pressure anti-icing liquid 100 in the pressure stabilizing tank 207 to a specific working pressure. A plurality of branch pipelines 303 are branched from the main pipeline 302, the anti-icing fluid 100 is conveyed to different positions of a turnout through the plurality of branch pipelines 303, and a plurality of branch pipelines 303 can be additionally arranged according to the quantity requirement of spraying positions. A second three-way pipeline 501 is arranged between the pressure regulating valve 301 and the spraying module 4, a first pipe orifice of the second three-way pipeline 501 is connected with the pressure regulating valve 301, a second pipe orifice of the second three-way pipeline 501 is connected with the spraying module 4, and a third pipe orifice of the second three-way pipeline 501 is connected with the backflow module 5.
The spraying module 4 comprises a plurality of branch pipes 303, each branch pipe 303 is connected with a nozzle assembly 403 through a fourth pipe 402, the fourth pipe 402 is provided with an electromagnetic valve 401, and the nozzle assemblies 403 are used for spraying the anti-icing liquid 100 to different positions of a turnout. The different parts of the turnout comprise a slide plate, a switch rail, an end part of a stock rail and/or a connecting rod of the turnout.
The backflow module 5 comprises a fifth pipeline 502, the fifth pipeline 502 is provided with a third valve 503 and a backflow module electromagnetic valve 505, one end of the backflow module electromagnetic valve 505 is connected with the backflow port 104, and the other end of the backflow module electromagnetic valve 505 is connected with one end of the third valve 503; the other end of the third valve 503 is connected to the third nozzle of the second three-way pipe 501.
The second valve 203 is a normally closed valve, and the first valve 201 and the third valve 503 are normally open valves. The third valve 503 is provided to allow the fifth line 502 to be closed by the third valve 503 when the return module solenoid valve 505 fails.
The top of the reservoir 101 is provided with an air outlet 106 for venting air from the interior of the reservoir 101.
The invention also provides a switch snow-melting and ice-preventing method, which comprises the following steps:
s1), starting the heater 105, heating the anti-icing fluid in the liquid storage tank 101 to a set temperature, measuring the liquid level of the liquid storage tank 101 in real time through the high liquid level sensor 107 and the low liquid level sensor 109, setting a liquid level low threshold value, judging whether the liquid level of the liquid storage tank 101 is lower than the liquid level low threshold value, and if not, entering the step S3); if yes, go to step S2);
s2) opening the second valve 203 and the backflow module solenoid valve 505, closing the first valve 201, starting the pressure pump 200, replenishing the anti-icing fluid in the replenishing tank into the liquid storage tank 101 through the pressure pump, setting a high liquid level threshold, stopping the pressure pump 200 when the liquid level of the liquid storage tank 101 reaches the high liquid level threshold, closing the backflow module solenoid valve 505 and the second valve 203, opening the first valve 201, and going to step S3);
s3) judging whether the anti-icing liquid needs to be sprayed to the snow-prone and icing part of the turnout, and if not, entering the step S5); if yes, monitoring the pressure in the surge tank 207 through a pressure gauge 208, setting a low pressure threshold value and a high pressure threshold value, and starting the pressure pump 200 to pressurize the anti-icing fluid in the liquid storage tank 101 and convey the anti-icing fluid into the surge tank 207 when the pressure in the surge tank 207 is lower than the low pressure threshold value; when the pressure in the surge tank 207 reaches a high pressure threshold, the booster pump 200 is stopped;
s4) adjusting the anti-icing fluid to the working pressure by the pressure regulating valve 301, opening the electromagnetic valve 401, spraying the anti-icing fluid to different parts of the turnout, and returning to step S3);
s5), closing the electromagnetic valve 401, opening the backflow module electromagnetic valve 505, emptying the anti-icing fluid in the third pipeline 209, and returning the anti-icing fluid in the third pipeline 209 to the liquid storage tank 101; judging whether the anti-icing liquid in the third pipeline 209 is emptied, if so, closing the electromagnetic valve 505 of the backflow module, and returning to the step S1); if not, repeating the step.
According to the weather condition, before snowfall, the anti-icing fluid 100 is sprayed to the snow-prone and icing part of the turnout. The pressure pump 200 is started to pressurize and feed the anti-icing liquid 100 into the surge tank 207, and the anti-icing liquid 100 is adjusted to the operating pressure by the pressure regulating valve 301. After the electromagnetic valve 401 is opened, the anti-icing fluid is sprayed on different parts of the turnout. According to the requirement of spraying, a plurality of branch pipelines 303 extend to the parts such as the slide plate, the end parts of the switch rail and the stock rail, the connecting rod and the like. According to the snow intensity, the turnout snow-melting and ice-preventing system of the first embodiment can spray at preset time intervals (for example, at every 1 hour), and can achieve the effect of continuous snow melting and ice prevention. The pressure of the anti-icing fluid in the surge tank 207 is monitored by a pressure gauge 208, and when the pressure is lower than a low pressure threshold value, the booster pump 200 is started to maintain the pressure of the anti-icing fluid in the surge tank 207. After the pressure reaches the pressure high threshold, the pressurizing pump 200 is stopped.
When the anti-icing fluid needs to be supplemented into the liquid storage tank 101, the anti-icing fluid is connected to the supplementing tank through the connecting pipe 204, and the supplementing tank is to be supplemented with the anti-icing fluid. The first valve 201 is closed, the second valve 203 is opened, the booster pump 200 is started, the backflow module solenoid valve 505 is opened, and the anti-icing liquid 100 is pumped into the liquid storage tank 101. The liquid level is read by the high liquid level sensor 107 and the low liquid level sensor 109, and after the liquid storage tank 101 is full, the booster pump 200 is stopped and the electromagnetic valve 505 is closed. The heater 105 is activated to heat the anti-icing liquid 100 to a set temperature. The backflow module 5 provided by the invention can backflow the anti-icing liquid in the third pipeline 209 to the liquid storage tank 101 by using the pressure of the pressure stabilizing tank 207.
By adopting the technical scheme disclosed by the invention, the following beneficial effects are obtained: the invention sprays the anti-icing liquid to the turnout through automatic control, and particularly plays a good snow-melting anti-icing effect on the turnout in snowing weather in winter aiming at the parts of a slide plate, a switch rail, the tail end of a stock rail, a connecting rod and the like which cannot be covered by the existing heating system. By spraying the anti-icing liquid, the snow melting function is achieved, and the freezing point of a mixture formed by the anti-icing liquid is low, so that secondary icing is prevented. In addition, in the weather without snowfall in winter, some parts of the turnout are easy to freeze, the anti-icing liquid is sprayed, the effect of preventing the parts of the turnout which are easy to freeze from freezing is achieved, and compared with the existing mode of mainly electrically heating snow melting and assisting artificial snow removal and deicing, the snow melting and anti-icing device is higher in snow melting and anti-icing efficiency and longer in anti-icing duration.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that it will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the principle of the present invention, and such modifications and improvements should also be considered within the scope of the present invention.
Claims (9)
1. The turnout snow-melting and ice-preventing system is characterized by comprising a liquid storage module (1), a pressurizing module (2), a pressure stabilizing module (3), a spraying module (4) and a backflow module (5), wherein the liquid storage module (1) is provided with a liquid suction port (103) and a backflow port (104); a liquid suction port (103) of the liquid storage module (1) is sequentially connected with the pressurization module (2), the pressure stabilizing module (3) and the spraying module (4) through a lower pipeline; and a return port (104) of the liquid storage module (1) is connected with the return module (5) through an upper pipeline.
2. The turnout snow-melting and ice-preventing system according to claim 1, wherein the liquid storage module (1) comprises a liquid storage tank (101) for storing ice-preventing liquid (100), an insulating layer (102) is arranged outside the liquid storage tank (101), a heater (105) for heating the ice-preventing liquid (100) is arranged inside the liquid storage tank (101), and the liquid storage tank (101) is provided with a temperature sensor (108) for measuring the temperature of the ice-preventing liquid (100) and a high liquid level sensor (107) and a low liquid level sensor (109) for measuring the liquid level of the ice-preventing liquid (100).
3. The switch snow-melting and ice-protection system according to claim 1 or 2, characterized in that said pressurizing module (2) comprises a first three-way pipe (202) and a pressurizing pump (200); the first three-way pipeline (202) comprises a first pipe orifice, a second pipe orifice and a third pipe orifice; a first pipe orifice of the first three-way pipeline (202) is connected with the liquid suction port (103) through a first valve (201), a second pipe orifice of the first three-way pipeline (202) is connected with a liquid inlet of the booster pump (200), and a third pipe orifice of the first three-way pipeline (202) is connected with a supplement tank through a connecting pipe (204); the connecting pipe (204) is provided with a second valve (203); a section of hose (205) is connected to a liquid outlet of the booster pump (200), one end of the hose (205) is connected to the liquid outlet of the booster pump (200), and the other end of the hose (205) is connected to the pressure stabilizing module (3) through a one-way valve (206); the pressure stabilizing module (3) comprises a third pipeline (209), a pressure stabilizing tank (207) sequentially arranged on the third pipeline (209), a pressure gauge (208) used for monitoring the pressure in the pressure stabilizing tank (207) and a pressure regulating valve (301); the pressure stabilizing module (3) is connected with the spraying module (4).
4. The turnout snow and ice melting and preventing system according to claim 3, wherein the spraying module (4) comprises a plurality of branch pipes (303), each branch pipe (303) is connected with a nozzle assembly (403) through a fourth pipe (402), the fourth pipe (402) is provided with a solenoid valve (401), and the nozzle assemblies (403) are used for spraying the anti-icing liquid (100) to different parts of the turnout.
5. The turnout snow-melting and ice-preventing system according to claim 4, wherein a second three-way pipeline (501) is arranged between the pressure regulating valve (301) and the spraying module (4), a first pipe orifice of the second three-way pipeline (501) is connected with the pressure regulating valve (301), a second pipe orifice of the second three-way pipeline (501) is connected with the spraying module (4), and a third pipe orifice of the second three-way pipeline (501) is connected with the return module (5).
6. The turnout snow-melting and ice-preventing system according to claim 4 or 5, wherein the backflow module (5) comprises a fifth pipeline (502), the fifth pipeline (502) is provided with a third valve (503) and a backflow module solenoid valve (505), one end of the backflow module solenoid valve (505) is connected with the backflow port (104), and the other end of the backflow module solenoid valve (505) is connected with one end of the third valve (503); the other end of the third valve (503) is connected with a third pipe orifice of the second three-way pipeline (501).
7. The switch snow and ice melting system of claim 6, wherein said second valve (203) is a normally closed valve, and said first valve (201) and third valve (503) are normally open valves.
8. The switch snow-melting and ice-preventing system as claimed in claim 1, wherein the top of the liquid storage tank (101) is provided with an air outlet (106) for exhausting air inside the liquid storage tank (101).
9. A switch snow-melting and ice-preventing method applied to the switch snow-melting and ice-preventing system as claimed in any one of claims 1 to 8, comprising the steps of:
s1), starting a heater (105), heating the anti-icing fluid in the liquid storage tank (101) to a set temperature, measuring the liquid level of the liquid storage tank (101) in real time through a high liquid level sensor (107) and a low liquid level sensor (109), setting a liquid level low threshold value, judging whether the liquid level of the liquid storage tank (101) is lower than the liquid level low threshold value, and if not, entering the step S3); if yes, go to step S2);
s2) opening the second valve (203) and the backflow module electromagnetic valve (505), closing the first valve (201), starting the pressure pump (200), replenishing the anti-icing fluid of the replenishing tank into the liquid storage tank (101) through the pressure pump, setting a liquid level high threshold value, stopping the pressure pump (200) when the liquid level of the liquid storage tank (101) reaches the liquid level high threshold value, closing the backflow module electromagnetic valve (505) and the second valve (203), opening the first valve (201), and entering the step S3;
s3) judging whether the anti-icing liquid needs to be sprayed to the snow-prone and icing part of the turnout, and if not, entering the step S5); if yes, monitoring the pressure in the surge tank (207) through a pressure gauge (208), setting a pressure low threshold value and a pressure high threshold value, and starting a pressure pump (200) to pressurize the anti-icing fluid in the liquid storage tank (101) and convey the anti-icing fluid into the surge tank (207) when the pressure in the surge tank (207) is lower than the pressure low threshold value; when the pressure in the pressure stabilizing tank (207) reaches a pressure high threshold value, the pressurization pump (200) is stopped;
s4) adjusting the anti-icing fluid to working pressure through the pressure regulating valve (301), opening the electromagnetic valve (401), spraying the anti-icing fluid to different parts of the turnout, and returning to the step S3);
s5), closing the electromagnetic valve (401), opening the backflow module electromagnetic valve (505), emptying the anti-icing fluid in the third pipeline (209), and returning the anti-icing fluid in the third pipeline (209) to the liquid storage tank (101); judging whether the anti-icing fluid in the third pipeline (209) is emptied, if so, closing the electromagnetic valve (505) of the backflow module, and returning to the step S1); if not, repeating the step.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010356996.5A CN111395248A (en) | 2020-04-29 | 2020-04-29 | Switch snow melting and anti-icing method and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010356996.5A CN111395248A (en) | 2020-04-29 | 2020-04-29 | Switch snow melting and anti-icing method and system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111395248A true CN111395248A (en) | 2020-07-10 |
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ID=71428068
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010356996.5A Pending CN111395248A (en) | 2020-04-29 | 2020-04-29 | Switch snow melting and anti-icing method and system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111395248A (en) |
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2020
- 2020-04-29 CN CN202010356996.5A patent/CN111395248A/en active Pending
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