CN209865081U - Open-air anti-freezing wet fire hydrant for low-temperature environment ship - Google Patents
Open-air anti-freezing wet fire hydrant for low-temperature environment ship Download PDFInfo
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- CN209865081U CN209865081U CN201822171730.4U CN201822171730U CN209865081U CN 209865081 U CN209865081 U CN 209865081U CN 201822171730 U CN201822171730 U CN 201822171730U CN 209865081 U CN209865081 U CN 209865081U
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Abstract
The utility model discloses an open-air anti-freezing wet fire hydrant for a low-temperature environment ship, a water inlet of a fire valve is connected with a first end of a fire water pipe, the fire water pipe and the fire valve are arranged in a bulkhead, and a second end of the fire water pipe is communicated with a water source; the fire hydrant connector is arranged on the outer side of the cabin wall and is directly connected with the water outlet of the fire valve; the auxiliary pipeline is arranged in a bulkhead outside the fire-fighting water pipe, the first end of the auxiliary pipeline is communicated with the first end of the fire-fighting water pipe, and the second end of the auxiliary pipeline is communicated with the second end of the fire-fighting water pipe; the first water pump is connected to the auxiliary pipeline; controlling the start and stop of the first water pump according to the temperature in the cabin wall; the fire hose is located the upper end of fire valve, and the fire hydrant connects the lower extreme that is located the fire valve, and the exit end that the fire hydrant connects is located the lowest position of outlet conduit between fire valve to the fire hydrant connects. The utility model discloses guaranteed the normal use of fire hydrant in cold areas such as polar region, avoided the fire hydrant to freeze and can't go out water.
Description
Technical Field
The utility model relates to a fire hydrant that is used for open department among low temperature environment navigation boats and ships wet-type fire extinguishing system belongs to shipbuilding technical field, concretely relates to marine open wet-type fire hydrant that prevents frostbite of low temperature environment.
Background
The ship adopting wet fire protection sails in cold regions such as polar regions, and because water is always stored in the fire protection pipe and exposed in the cold environment, the water is easy to freeze, and the fire protection system cannot meet the requirement that the wet fire protection system can supply water. The conventional wet fire hydrant for sailing ships in low-temperature environments needs to be provided with electric heat tracing or steam heat tracing, so that the energy consumption is high, and a special protection box needs to be arranged; or the fire hydrant is required to be arranged at an indoor normal temperature place, but the fire hydrant is inconvenient to use at an outdoor place which needs fire-fighting water protection.
In order to solve the problems, the fire hydrant can be used for protecting the open places, can meet the requirements of wet fire fighting, does not need to be provided with electric heat tracing or steam heat tracing, and reduces energy consumption.
SUMMERY OF THE UTILITY MODEL
It is an object of the present invention to solve at least the above problems and to provide at least the advantages which will be described later.
The utility model aims at providing a marine open-air wet-type fire hydrant that prevents frostbite of low temperature environment, invert the fire hydrant and set up, automatically drain the delivery port of the fire hydrant, need not to increase the drainage mechanism who drains the delivery port of the fire hydrant in the pipeline, avoid under the low temperature condition, because there is residual ponding at the delivery port of the fire hydrant and freeze the delivery port of the fire hydrant and influence the fire hydrant to go out water, effectively get rid of the potential safety hazard that the delivery port of the fire hydrant is frozen; meanwhile, on the basis, the anti-freezing auxiliary waterway is added on the fire-fighting water pipe, when the temperature is below the freezing point, the water in the fire-fighting water pipe can be subjected to internal circulation flow by opening the anti-freezing auxiliary waterway, so that the water in the pipe is prevented from freezing due to static state, and the probability of freezing the water in the fire-fighting water pipe is reduced; on the basis, an antifreezing solution adding pipeline is additionally arranged in the antifreezing auxiliary water channel, and the possibility of freezing water in the fire water pipe is further reduced according to the proportion of adding the antifreezing solution according to the temperature. The three modes are matched for use, so that the normal use of the fire hydrant in cold regions such as polar regions is ensured, and the fire hydrant is prevented from being frozen and being incapable of discharging water.
To achieve these objects and other advantages in accordance with the purpose of the invention, there is provided an open-air anti-freezing wet hydrant for a low temperature environment ship, comprising:
the water inlet of the fire-fighting valve is connected with the first end of a fire-fighting water pipe, the fire-fighting water pipe and the fire-fighting valve are arranged in the cabin wall, a valve hand wheel of the fire-fighting valve is led out from the cabin wall through a fire-fighting valve extension rod, and the second end of the fire-fighting water pipe is communicated with a water source;
the fire hydrant connector is arranged on the outer side of the cabin wall and is directly connected with the water outlet of the fire valve;
an auxiliary conduit built into the bulkhead outside the fire hose, the auxiliary conduit having a first end in communication with the fire hose first end and a second end in communication with the fire hose second end;
a first water pump connected to the auxiliary pipe, the first water pump being installed in a cabin or in the cabin wall;
the fire hose is located at the upper end of the fire valve, the hydrant joint is located at the lower end of the fire valve, and the outlet end of the hydrant joint is located at the lowest position of the water outlet pipeline between the fire valve and the hydrant joint.
Preferably, the water outlet of the fire valve is connected with the fire hydrant connector through a short pipe and an elbow, and the fire hydrant connector is led out from the cabin wall.
Preferably, a heat-insulating layer is arranged in the bulkhead, and the fire valve and the fire water pipe are clamped in the middle of the heat-insulating layer.
Preferably, the water inlet and the water outlet of the fire valve are arranged in a vertically-through manner, an access hole is formed in the outer side wall of the bulkhead at the position corresponding to the fire valve, the access hole is sealed through a cover plate, the first end of the fire valve extension rod is connected to the control end of the fire valve, and the second end of the fire valve extension rod penetrates through the cover plate and is connected with the valve hand wheel.
Preferably, the periphery of the cover plate is fixed with the outer side wall of the bulkhead at the periphery of the access opening through a cover plate fixing bolt, and a cover plate seal is arranged between the periphery of the cover plate and the bulkhead;
the extension rod of the fire valve is provided with an extension rod seal from the leading-out end of the cover plate, and the extension rod seal and the cover plate are fixed through an extension rod seal fixing bolt.
Preferably, a first opening is formed in the side wall of the first end of the fire hose in a penetrating manner, and a second opening is formed in the side wall of the second end of the fire hose in a penetrating manner; the first end of the auxiliary pipeline is communicated with the first opening, and the second end of the auxiliary pipeline is communicated with the second opening;
the opening positions of the first opening and the second opening are radially staggered by 180 degrees on the periphery of the fire hose.
Preferably, the pumping direction of the first water pump is from the second opening to the first opening, a first electromagnetic valve is arranged on an auxiliary pipeline between the first water pump and the second opening, and an inlet and an outlet of the first electromagnetic valve are communicated with the auxiliary pipeline; and a second electromagnetic valve is arranged on the auxiliary pipeline between the first water pump and the first opening, and the inlet and the outlet of the second electromagnetic valve are communicated with the auxiliary pipeline.
Preferably, a second water pump is arranged on an auxiliary pipeline between the first water pump and the second electromagnetic valve, an inlet end of the second water pump is connected with a liquid storage tank, antifreeze is stored in the liquid storage tank, the liquid storage tank is installed in the cabin, and a flowmeter is installed in a pipeline between the second water pump and the liquid storage tank.
Preferably, the liquid storage tank is of a piston type cavity structure, a partition plate is arranged in the liquid storage tank in a sliding mode, the partition plate divides the liquid storage tank into two independent chambers, and the partition plate and the inner peripheral wall of the liquid storage tank are arranged in a sealing mode;
a third opening is formed in the bottom of the end of the first cavity of the liquid storage tank, and a fourth opening is formed in the top of the first cavity of the liquid storage tank; a fifth opening is formed in the bottom of the end head of the second chamber of the liquid storage tank, a sixth opening is formed in the top of the second chamber of the liquid storage tank, and anti-freezing liquid is stored in the second chamber; the fourth opening and the sixth opening are in a normally closed state, the third opening and the fifth opening are communicated with the auxiliary pipeline respectively, the second water pump is arranged on the fifth opening and a connecting pipeline between the auxiliary pipelines, and the pumping direction of the second water pump is from the fifth opening to the auxiliary pipelines.
Preferably, a temperature sensor is arranged in the bulkhead, and a pressure sensor is arranged on the inner side wall of the water outlet connecting pipeline of the fire valve.
Compared with the prior art, the utility model discloses the beneficial effect who contains lies in:
1. the open-air anti-freezing wet fire hydrant for the low-temperature environment ship does not need to be provided with the heat tracing device after being installed, so that the energy consumption is saved, and the installation and maintenance cost of the heat tracing device is reduced;
2. the open-air anti-freezing wet fire hydrant for the ship in the low-temperature environment can be installed in the original bulkhead of the ship, and a special protection box is not required to be additionally arranged;
3. the open-air anti-freezing wet fire hydrant for the low-temperature environment ship can directly discharge residual water in the pipe to an open deck, and indoor accumulated water cannot be caused;
4. an anti-freezing auxiliary waterway is added on the fire-fighting water pipe, when the temperature is below the freezing point, the water in the fire-fighting water pipe can be subjected to internal circulation flow by opening the anti-freezing auxiliary waterway, so that the water in the pipe is prevented from freezing due to stillness, and the probability of freezing the water in the fire-fighting water pipe is reduced;
5. an antifreezing solution adding pipeline is additionally arranged in the anti-freezing auxiliary waterway, and the possibility of freezing water in the fire water pipe is further reduced according to the proportion of adding the antifreezing solution according to the temperature;
6. the fire hydrant has the advantages that the water outlet of the fire hydrant is inversely emptied, the anti-freezing auxiliary waterway is additionally arranged on the fire water pipe, and the anti-freezing liquid adding pipeline is additionally arranged on the anti-freezing auxiliary waterway, so that the fire hydrant is normally used in cold regions such as polar regions, and the fire hydrant is prevented from being frozen and cannot discharge water.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
FIG. 1 is a sectional view of an open air anti-freezing wet fire hydrant installed in a low temperature environment for a ship;
FIG. 2 is a view in the direction X of FIG. 1;
FIG. 3 is a schematic view of the installation of the open air anti-freezing wet fire hydrant cover plate and the seal for the ship in the low temperature environment;
FIG. 4 is a schematic view of the sealing installation of an open-air anti-freezing wet fire hydrant extension rod for a ship in a low-temperature environment;
FIG. 5 is a cross-sectional view of a fire hose;
FIG. 6 is a piping connection diagram of the auxiliary antifreeze waterway, the antifreeze addition pipeline, and the fire hose;
FIG. 7 is a schematic view of a reservoir;
FIG. 8 is a block diagram of a control system;
in the drawings: the fire-fighting water supply system comprises a fire-fighting valve 1, a fire-fighting valve 2, an extension rod 3, an extension rod seal 4, a cover plate 5, a cover plate seal 6, a bulkhead 7, a hydrant connector 8, a heat insulation layer 9, a cover plate fixing bolt 10, an extension rod seal fixing bolt 11, a fire-fighting water pipe 12, a second opening 13, a first opening 14, an auxiliary pipeline 15, a first water pump 15, a first electromagnetic valve 16, a second water pump 17, a liquid storage tank 18, a second electromagnetic valve 19, a controller 20, a temperature sensor 21, a pressure sensor 22 and a flowmeter 23.
Detailed Description
The present invention is further described in detail below with reference to the attached drawings so that those skilled in the art can implement the invention by referring to the description.
The controller and the intelligent detection and control process thereof according to the present embodiment are not the protection object of the present invention, but are a technical means for improving the advancement of the technical solution, and of course, manual control may be performed without using the controller. The utility model discloses the object protected is fire hydrant structure and each parts relation of connection, and controller, flowmeter, water pump, pressure sensor, temperature sensor and the solenoid valve model that designs among this technical scheme do not have special requirement, adopt in this technical scheme conventional selection can to realize the essential function of required basic signal collection and control among this technical scheme.
As shown in fig. 1-4, the utility model provides a marine open-air frostproofing wet-type fire hydrant of low temperature environment, this marine open-air frostproofing wet-type fire hydrant of low temperature environment, including fire valve 1, fire valve extension rod 2, extension rod seal 3, apron 4, apron seal 5, bulkhead 6, fire hydrant joint 7, heat preservation 8, apron fixing bolt 9, extension rod seal fixing bolt 10, fire hose 11.
In the open-air anti-freezing wet fire hydrant for the low-temperature environment ship, the water inlet of the fire valve 1 is connected with the fire hose 11 at the upper part, and the water outlet of the fire valve 1 is connected with the fire hydrant connector 7 through a short pipe; the fire valve 1 and the fire water pipe 11 are arranged inside the bulkhead, the fire hydrant joint 7 is arranged in an open area, and an insulating layer 8 is arranged between the fire valve 1, the fire water pipe 11 and the bulkhead 6; the fire fighting valve 1 can be operated from the open air area by means of a fire fighting valve extension rod 2; the cover plate 4 and the bulkhead 6 are fixed through a cover plate fixing bolt 9, and a cover plate seal 5 is arranged between the cover plate 4 and the bulkhead 6; the extension rod seal 3 and the cover plate 4 are fixed through an extension rod seal fixing bolt 10.
In the open-air anti-freezing wet fire hydrant for the low-temperature environment ship, the cover plate seal 5 and the extension rod seal 3 can prevent outdoor rain and snow from entering the cabin wall 6; the cover plate 4 can be detached for installation and maintenance of the fire valve 1.
In the open-air anti-freezing wet fire hydrant for the low-temperature environment ship, the water outlet of the fire valve 1 is downward; and the connection pipe between the outlet of the fire valve 1 and the fire hydrant connector 7 should be as straight and short as possible, and no water should remain.
When the ship fire-fighting system works, the fire-fighting hose can be connected to the fire hydrant connector 7, the fire valve 1 is opened through the fire valve extension rod 2, and the fire-fighting system can work. After fire control work is accomplished, close fire valve 1 through fire valve extension rod 2, pull down fire hose, the residual water in the 1 exit end of fire valve leaks to the weather deck, with the evacuation of 1 exit end of fire valve, avoids residual water to freeze 1 exit end of fire valve, influences the normal play water of fire hydrant.
As shown in fig. 5 to 6, an auxiliary pipe 14 is built in the bulkhead 6 outside the fire hose 11, a first end of the auxiliary pipe 14 communicates with a first end of the fire hose 11, and a second end of the auxiliary pipe 14 communicates with a second end of the fire hose 11.
The inner diameter of auxiliary conduit 14 is less than fire hose 11, and only water in auxiliary conduit 14 and fire hose 11 needs to be able to circulate internally. A first water pump 15 is connected to the auxiliary conduit 14, said first water pump 15 being mounted in the cabin or in the cabin wall 6 so as to avoid exposure to freezing. Controller 20 is according to the temperature control in the bulkhead 6 start-stop of first water pump 15, the internal circulation process of water in auxiliary conduit 14 and fire water pipe 11 that also is controlled, when below the freezing point, the water in auxiliary conduit 14 and the fire water pipe 11 of control carries out the internal circulation, realizes the flow of water in fire water pipe 11, avoids the water ice in fire water pipe 11.
Specifically, a first opening 13 is formed in a side wall of a first end of the fire hose 11 in a penetrating manner, and a second opening 12 is formed in a side wall of a second end of the fire hose 11 in a penetrating manner; the first end of the auxiliary pipe 14 is communicated with the first opening 13, and the second end of the auxiliary pipe 14 is communicated with the second opening 12, so that the communication between the auxiliary pipe 14 and the fire hose 11 is realized.
In this embodiment, the opening positions of the first opening 13 and the second opening 12 are radially staggered by 180 degrees on the periphery of the fire hydrant pipe 11, so that after the internal circulation is started, the internal circulation water only circularly flows along the pipe wall on one side of the fire hydrant pipe 11, and the water in the whole part of the fire hydrant pipe 11 does not flow and freeze, which still affects the normal use of the fire hydrant. And the opening position of first opening 13 and second opening 12 is in after the 180 degrees of radially staggering in fire water pipe 11 periphery, the water that interior circulating water in the pipeline can drive in the fire water pipe 11 wholly flows to realize the whole circulation flow of whole water in fire water pipe 11 and the auxiliary conduit 14, avoid freezing because of fire water pipe 11 internal water stews under the freezing point.
Specifically, the pumping direction of the first water pump 15 is from the second opening 12 to the first opening 13, a first electromagnetic valve 16 is arranged on the auxiliary pipeline 14 between the first water pump 15 and the second opening 12, an inlet and an outlet of the first electromagnetic valve 16 are communicated with the auxiliary pipeline 14, and the first water pump 15 is only used for driving water to perform internal circulation in the auxiliary pipeline 14 and the fire water pipe 11.
A second electromagnetic valve 19 is arranged on the auxiliary pipeline 14 between the first water pump 15 and the first opening 13, an inlet and an outlet of the second electromagnetic valve 19 are communicated with the auxiliary pipeline 14, and the first electromagnetic valve 16 and the second electromagnetic valve 19 are controlled by the controller 20. The first solenoid valve 16 and the second solenoid valve 19 are used for switching off the auxiliary pipeline 14 when the fire hydrant is discharging water, so as to prevent high-pressure water from flowing through the auxiliary pipeline 14 and damaging the first water pump 15, and the first solenoid valve 16 and the second solenoid valve 19 are opened only when the internal circulation process of water in the auxiliary pipeline 14 and the fire water pipe 11 is started.
First water pump 15 with be provided with second water pump 17 on the auxiliary line 14 between the second solenoid valve 19, a liquid storage pot 18 is connected to the entry end of second water pump 17, the interior antifreeze that has stored of liquid storage pot 18, liquid storage pot 18 is installed in the cabin, be convenient for observe liquid level and liquid feeding process. A flow meter 23 is arranged in a pipeline between the second water pump 17 and the liquid storage tank 18 and used for measuring the outflow of the antifreeze liquid, the second water pump 17 is controlled by the controller 20, the output signal end of the flow meter 23 is connected to the controller 20, the outflow information of the antifreeze liquid is fed back to the controller 20, and the controller 20 controls the second water pump 17 to be turned on or off according to the information, namely the outflow of the antifreeze liquid is controlled.
In this embodiment, as shown in fig. 7, the liquid storage tank 18 is a piston-type cavity structure, a partition 183 is slidably disposed in the liquid storage tank 18, the partition 183 divides the liquid storage tank 18 into two independent chambers, and the partition 183 is hermetically disposed on the inner peripheral wall of the liquid storage tank 18, so as to prevent the two chambers from leaking each other.
A third opening 181 is formed in the bottom of the end of the first chamber of the liquid storage tank 18, the third opening 181 is communicated with the auxiliary pipeline 14 at the outlet end of the first water pump 15 through a pipeline, as shown in fig. 6, a fourth opening 184 is formed in the top of the first chamber of the liquid storage tank 18; a fifth opening 182 is formed in the bottom of the end of the second chamber of the liquid storage tank 18, the fifth opening 182 is communicated with the auxiliary pipeline 14 close to the second electromagnetic valve 19 through a pipeline, the second water pump 17 is arranged on a connecting pipeline between the fifth opening 182 and the auxiliary pipeline 14, the antifreeze is stored in the second chamber, the pumping direction of the second water pump 17 is from the fifth opening 182 to the auxiliary pipeline 14, and the second water pump 17 is used for adding the antifreeze to the auxiliary pipeline 14 from the liquid storage tank 18 in proportion.
A sixth opening 185 is formed in the top of the second chamber of the liquid storage tank 18; wherein, the fourth opening 184 and the sixth opening 185 are in a normally closed state, and the first chamber and the second chamber are prevented from leaking to the outside.
The first and second chambers are respectively communicated with the auxiliary pipe 14 to balance the pressure at the ends of the third and fifth openings 181 and 182, because the water pressure in the fire hose 11 is high, it is difficult to add the anti-freezing solution to the auxiliary pipe 14 through the second water pump 17 if the pressure is not balanced. Therefore the utility model discloses a liquid storage pot 18 of two-chamber structure, every cavity communicate with auxiliary pipeline 14 respectively in order to balance out the external pressure of entry end, and then the second water pump 17 of being convenient for adds antifreeze to auxiliary pipeline 14 in.
Among the above-mentioned technical scheme, be provided with a pressure sensor 22 who is connected with controller 20 on the delivery port connecting tube inside wall of fire control valve 1 for detect the water pressure in the delivery port connecting tube of fire control valve 1, when the fire hydrant is in the closed condition, the residual water in the delivery port connecting tube of fire control valve 1 is by automatic evacuation, and pressure sensor 22 can not detect pressure. When the fire hydrant is in an open state, high-pressure water flows through the water outlet connecting pipeline of the fire valve 1, and the pressure sensor 22 can detect the pressure. The utility model discloses in, pressure sensor 22 is used for detecting whether fire service valve 1 is opened.
The first electromagnetic valve 16, the second electromagnetic valve 19, the first water pump 15 and the second water pump 17 are in a normally closed state, the temperature sensor 20 connected with the controller 20 is arranged in the bulkhead 6, although an insulating layer is arranged in the bulkhead 6, the temperature in the bulkhead 6 can be reduced below the freezing point in an extreme case, when the temperature in the bulkhead 6 is detected to be reduced to 0 ℃ or below, the first electromagnetic valve 16 and the second electromagnetic valve 19 are opened, the first water pump 15 is started, the whole circulation flow of all water in the fire water pipe 11 and the auxiliary pipeline 14 is started, and the water in the pipelines is prevented from freezing due to standstill.
And the rotating speed of the first water pump 15 is controlled to be in inverse proportion relation with the temperature in the bulkhead 6, namely, when the temperature in the bulkhead 6 is lower than 0 ℃, the rotating speed of the first water pump 15 is faster, the flow rate of the internal circulating water is accelerated, and low-temperature freezing is avoided. When the temperature in the bulkhead 6 rises back to above 0 ℃, the first water pump 15, the first solenoid valve 16 and the second solenoid valve 19 are closed, and the flow of the internal circulation water is terminated.
The second water pump 17 is in a normally closed state, when the fire hydrant is used for the first time, or after the pressure sensor 22 detects that water pressure exists, that is, water in the original fire water pipe 11 is discharged, it indicates that no anti-freezing liquid is added to the water in the fire water pipe 11 at this time, when the temperature in the bulkhead 6 is reduced to 0 ℃ or below, the second water pump 17 is opened on the basis of starting internal circulation, the anti-freezing liquid is proportionally poured into the auxiliary pipeline 14, the pouring amount of the anti-freezing liquid is monitored through the flowmeter 23, the pouring amount of the anti-freezing liquid is controlled to be in an inverse proportion relation with the temperature in the bulkhead 6, and the adding amount of the anti-freezing liquid is not more than 50% of the inner volume of the whole fire water pipe 11.
After the antifreezing solution is added, the freezing point of water in the fire water pipe 11 can be lowered, the antifreezing effect in the water pipe can be improved by matching with the internal circulation of water in the fire water pipe 11, the fire water pipe 11 is prevented from being frozen, and the normal use of the fire hydrant is ensured. When the temperature in the bulkhead 6 rises above 0 ℃, the second water pump 17 is automatically turned off.
After the antifreeze is added into the fire hose 11, if the fire hydrant is not opened, that is, the pressure sensor 22 does not detect water pressure, when the temperature in the bulkhead 6 is lowered to 0 ℃ and below again, only the internal circulation process needs to be started without starting the second water pump 17 again, unless the temperature in the bulkhead 6 is further lowered to be lower than the lowest temperature before, at this time, the second water pump 17 is started according to the temperature in the bulkhead 6, the antifreeze is added in a proper amount, the flow meter 23 monitors the addition amount of the antifreeze, and the cumulative addition amount of the antifreeze does not exceed 50% of the internal volume of the whole fire hose 11.
With the continuous addition of the antifreeze to the fire hose 11, the partition 183 gradually moves from the first chamber to the second chamber, and when the antifreeze in the second chamber is insufficient and needs to be added, the first electromagnetic valve 16, the second electromagnetic valve 19, the first water pump 15 and the second water pump 17 are closed, the liquid storage tank 18 is cut off from the fire hose 11, that is, the pressure is cut off, and the liquid storage tank 18 is returned to the normal pressure state. After that, the fourth opening 184 and the sixth opening 185 are opened, the external anti-freezing solution is added into the second chamber from the sixth opening 185 under pressure, the baffle 183 gradually moves from the second chamber to the first chamber, the water in the first chamber is discharged from the fourth opening 184 outwards until the second chamber is filled with the anti-freezing solution, and the fourth opening 184 and the sixth opening 185 are closed again.
From the above, the open-air anti-freezing wet fire hydrant for the low-temperature environment ship does not need to be provided with the heat tracing device after installation, so that the energy consumption is saved, and the installation and maintenance cost of the heat tracing device is reduced; the open-air anti-freezing wet fire hydrant for the ship in the low-temperature environment can be installed in the original bulkhead of the ship, and a special protection box is not required to be additionally arranged; the utility model discloses a marine wet-type fire hydrant that prevents frostbite in open air of low temperature environment, intraductal residual water can directly release to open deck, can not cause indoor ponding, can eliminate the frozen problem of fire hydrant exit end residual water simultaneously to keep the unblocked of fire hydrant exit end, also can maintain the normal use of fire hydrant at low temperature.
Meanwhile, the anti-freezing auxiliary waterway is additionally arranged on the fire-fighting water pipe, when the temperature is below the freezing point, water in the fire-fighting water pipe can be subjected to internal circulation flow by opening the anti-freezing auxiliary waterway, the lower the temperature is, the faster the internal circulation flow speed is, the water in the fire-fighting water pipe 11 is prevented from freezing due to static state, and the probability that the water in the fire-fighting water pipe is frozen is reduced.
Furthermore, an antifreezing fluid adding pipeline is additionally arranged in the anti-freezing auxiliary waterway, and when the temperature is below the freezing point, the proportion of the antifreezing fluid in the fire water pipe 11 is added according to the temperature, so that the freezing point of water in the fire water pipe is reduced, and the probability of freezing the water in the fire water pipe is reduced.
The cooperation of fire hose 11's internal circulation system adds antifreeze to fire hose 11, can effectively avoid fire hose 11 to be frozen, guarantees the normal use of fire hydrant, improves the reliability that the fire hydrant used under extreme weather.
The fire hydrant has the advantages that the water outlet of the fire hydrant is reversely emptied, the anti-freezing auxiliary waterway is additionally arranged on the fire water pipe, and the anti-freezing liquid adding pipeline is additionally arranged on the anti-freezing auxiliary waterway, so that the fire hydrant is normally used in cold regions such as polar regions, and the fire hydrant is prevented from being frozen and cannot be normally used.
While the embodiments of the invention have been described above, it is not intended to be limited to the details shown, or described, but rather to cover all modifications, which would come within the scope of the appended claims, and all changes which come within the meaning and range of equivalency of the art are therefore intended to be embraced therein.
Claims (10)
1. The utility model provides a wet-type fire hydrant that prevents frostbite in open air for low temperature environment ship which characterized in that includes:
the water inlet of the fire-fighting valve is connected with the first end of a fire-fighting water pipe, the fire-fighting water pipe and the fire-fighting valve are arranged in the cabin wall, a valve hand wheel of the fire-fighting valve is led out from the cabin wall through a fire-fighting valve extension rod, and the second end of the fire-fighting water pipe is communicated with a water source;
the fire hydrant connector is arranged on the outer side of the cabin wall and is directly connected with the water outlet of the fire valve;
an auxiliary conduit built into the bulkhead outside the fire hose, the auxiliary conduit having a first end in communication with the fire hose first end and a second end in communication with the fire hose second end;
a first water pump connected to the auxiliary pipe, the first water pump being installed in a cabin or in the cabin wall;
the fire hose is located at the upper end of the fire valve, the hydrant joint is located at the lower end of the fire valve, and the outlet end of the hydrant joint is located at the lowest position of the water outlet pipeline between the fire valve and the hydrant joint.
2. An open-air antifreeze wet fire hydrant according to claim 1 in which the outlet of said fire hydrant valve is connected to said hydrant connector through a short tube and an elbow, said hydrant connector extending outwardly from said bulkhead.
3. An open-air antifreezing wet fire hydrant according to claim 2 wherein the bulkhead is provided with an insulating layer, and the fire valve and the fire hose are sandwiched between the insulating layer.
4. The wet open-air antifreezing fire hydrant for the ship in the low temperature environment as claimed in claim 3, wherein the water inlet and the water outlet of the fire fighting valve are arranged in a straight-through manner, the outer sidewall of the bulkhead at the corresponding position of the fire fighting valve is provided with an access opening, the access opening is closed by a cover plate, the first end of the extension rod of the fire fighting valve is connected to the control end of the fire fighting valve, and the second end of the extension rod of the fire fighting valve penetrates through the cover plate to be connected with the valve hand wheel.
5. An open-air antifreezing wet fire hydrant for a ship in a low temperature environment according to claim 4, wherein the outer periphery of the cover plate is fixed to the outer side wall of the bulkhead at the outer periphery of the service opening by a cover plate fixing bolt, and a cover plate seal is provided between the outer periphery of the cover plate and the bulkhead;
the extension rod of the fire valve is provided with an extension rod seal from the leading-out end of the cover plate, and the extension rod seal and the cover plate are fixed through an extension rod seal fixing bolt.
6. The open-air antifreezing wet fire hydrant for the ship in the low temperature environment according to claim 1, wherein a first opening is opened through a side wall of the first end of the fire hydrant pipe, and a second opening is opened through a side wall of the second end of the fire hydrant pipe; the first end of the auxiliary pipeline is communicated with the first opening, and the second end of the auxiliary pipeline is communicated with the second opening;
the opening positions of the first opening and the second opening are radially staggered by 180 degrees on the periphery of the fire hose.
7. The open-air antifreezing wet fire hydrant for the ship in the low temperature environment as claimed in claim 6, wherein the pumping direction of the first water pump is from the second opening to the first opening, a first solenoid valve is disposed on the auxiliary pipeline between the first water pump and the second opening, and an inlet and an outlet of the first solenoid valve are communicated with the auxiliary pipeline; and a second electromagnetic valve is arranged on the auxiliary pipeline between the first water pump and the first opening, and the inlet and the outlet of the second electromagnetic valve are communicated with the auxiliary pipeline.
8. The outdoor antifreezing wet fire hydrant for the low temperature environment ship as claimed in claim 7, wherein a second water pump is disposed on the auxiliary pipeline between the first water pump and the second solenoid valve, an inlet end of the second water pump is connected to a liquid storage tank, the liquid storage tank stores antifreeze solution, the liquid storage tank is installed in the cabin, and a flow meter is installed in a pipeline between the second water pump and the liquid storage tank.
9. The open-air antifreezing wet fire hydrant for the ship in the low temperature environment according to claim 8, wherein the fluid reservoir has a piston-type cavity structure, a partition is slidably disposed in the fluid reservoir, the partition divides the fluid reservoir into two independent chambers, and the partition is hermetically disposed on an inner peripheral wall of the fluid reservoir;
a third opening is formed in the bottom of the end of the first cavity of the liquid storage tank, and a fourth opening is formed in the top of the first cavity of the liquid storage tank; a fifth opening is formed in the bottom of the end head of the second chamber of the liquid storage tank, a sixth opening is formed in the top of the second chamber of the liquid storage tank, and anti-freezing liquid is stored in the second chamber; the fourth opening and the sixth opening are in a normally closed state, the third opening and the fifth opening are communicated with the auxiliary pipeline respectively, the second water pump is arranged on the fifth opening and a connecting pipeline between the auxiliary pipelines, and the pumping direction of the second water pump is from the fifth opening to the auxiliary pipelines.
10. An open-air antifreeze wet fire hydrant according to claim 9 in which a temperature sensor is provided in the bulkhead and a pressure sensor is provided on the inner side wall of the outlet connecting pipe of the fire fighting valve.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822171730.4U CN209865081U (en) | 2018-12-24 | 2018-12-24 | Open-air anti-freezing wet fire hydrant for low-temperature environment ship |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201822171730.4U CN209865081U (en) | 2018-12-24 | 2018-12-24 | Open-air anti-freezing wet fire hydrant for low-temperature environment ship |
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| CN209865081U true CN209865081U (en) | 2019-12-31 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109621255A (en) * | 2018-12-24 | 2019-04-16 | 中国极地研究中心 | A kind of low temperature environment open-air freeze-proofing wet hydrant peculiar to vessel |
| CN112221044A (en) * | 2020-09-25 | 2021-01-15 | 广船国际有限公司 | Ship with anti-freezing fire hydrant |
-
2018
- 2018-12-24 CN CN201822171730.4U patent/CN209865081U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109621255A (en) * | 2018-12-24 | 2019-04-16 | 中国极地研究中心 | A kind of low temperature environment open-air freeze-proofing wet hydrant peculiar to vessel |
| CN109621255B (en) * | 2018-12-24 | 2024-05-07 | 中国极地研究中心 | Outdoor antifreezing wet fire hydrant for low-temperature environment ship |
| CN112221044A (en) * | 2020-09-25 | 2021-01-15 | 广船国际有限公司 | Ship with anti-freezing fire hydrant |
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