CN209801767U - Water heater for railway train - Google Patents
Water heater for railway train Download PDFInfo
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- CN209801767U CN209801767U CN201920353793.3U CN201920353793U CN209801767U CN 209801767 U CN209801767 U CN 209801767U CN 201920353793 U CN201920353793 U CN 201920353793U CN 209801767 U CN209801767 U CN 209801767U
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Abstract
The utility model provides a water heater for railway trains, which comprises a water boiling container, a water delivery pipeline, an electric heating element, a water flow control device, an emptying device and an electric control device; the water boiling container and the electric heating element form an instant electric heating water pipe, and the water flow control device is arranged on the water conveying pipe; the emptying device is arranged on the water conveying pipeline and is used for emptying the water boiling container and the stored water in the water conveying pipeline when needed; the emptying device comprises a tee joint, an emptying pipe and an emptying valve, the peripheries of the water boiling container and the electric heating element are provided with flame-retardant heat-insulating layers, and the peripheries of the flame-retardant heat-insulating layers are provided with fireproof and explosion-proof shells; the electric control device is used for controlling the on-off of a power supply comprising the electric heating element, the water flow control device and the electric emptying valve. The utility model discloses a institutional advancement makes it can solve in the technique easy emergence frost crack under the extremely low temperature damage, because of the fire prevention explosion-proof consideration not enough exist the potential safety hazard and do not consider the train and drive into technical problem such as influence that the boiling point difference of water brought the water heater when high altitude area.
Description
Technical Field
The utility model relates to a water heater, concretely relates to water heater for railway train.
Background
Providing (hot) water for train passengers and crew is an essential part of railway train operations. Railway trains currently commonly employ electric hot water tanks or electric water heaters for boiling water to provide boiled (hot) water. At present, an electric water heating tank or an electric water heater adopted by a railway train generally has three problems: firstly, because the regions and environments of train operation are often changed greatly, the current railway department requires that the electric water heating device equipped on the train can be effectively applied in the environmental temperature range of-40 ℃ to 40 ℃ and can not be frozen within 12 hours at-40 ℃, however, the internal water storage of the electric water heating tank or the electric water heater on the current railway train is difficult to be completely emptied due to the structural limitation, and the current electric water heater is easy to be damaged by frost cracking under the environment of about-40 ℃ or even lower extremely low temperature; secondly, the existing electric water heating tank or electric water heater on the railway train basically does not consider the altitude problem of the train when the train runs from a plain area to a plateau area, for example, when the train runs from the plain area to the plateau area, because the boiling point of water in the plain area is higher than that in the plateau area, the boiling point of the heating water of the electric water heating tank or electric water heater on the existing railway train is usually designed according to the plain area, when the train runs to the plateau area, the water which does not reach the set boiling point temperature is boiled, and the water heater continues to heat, so that on one hand, a large amount of steam can be generated, on the other hand, the water heater can be dried to cause; thirdly, due to the special use environment of the railway train, the fire and explosion protection performance of the electric water heater has little influence on the running safety of the railway train, and the electric water heater or the electric water heater adopted by the current railway train has insufficient consideration on fire and explosion protection and potential safety hazard.
SUMMERY OF THE UTILITY MODEL
The utility model aims at: in order to solve the technical problems in the prior art, the water heater for the railway train is improved in structure.
The technical scheme of the utility model is that: the utility model discloses a water heater for railway train, including boiling water container, hydraulic pipeline and electric heating element, its structural feature is: the device also comprises a water flow control device, an emptying device and an electric control device;
The water boiling container is a hollow component with a water inlet arranged below and a water outlet arranged above; the electric heating element is arranged on the peripheral wall of the water boiling container; the water conveying pipeline comprises a water conveying pipe, a water inlet pipe and a water outlet pipe; the water flow control device is arranged on the water conveying pipe; the emptying device comprises an emptying pipe and an emptying valve arranged on the emptying pipe, the emptying valve is a manual valve or an electric valve, and the upper end of the water inlet pipe is fixedly connected with the water inlet of the water boiling container in a sealing way; the lower end of the water inlet pipe, the upper end of the emptying pipe and the inner end of the water conveying pipe are communicated, when the water-saving device is used, the outer end of the water conveying pipe is connected with a train water source, and the lower end of the emptying pipe is connected with a water storage recovery device or a pipeline on a railway train; the electric control device is used for controlling the on-off of the power supply when the water flow control device, the electric heating element and the emptying valve are electric valves.
The further scheme is as follows: the emptying device also comprises a tee joint, wherein one connecting end of the tee joint is connected with the inner end of the water conveying pipe, the second connecting end of the tee joint is connected with the lower end of the water inlet pipe, and the third connecting end of the tee joint is connected with the upper end of the emptying pipe; the water flow control device is an electric flow control valve, or the water flow control device is an electric water pump, an electric valve or an electromagnetic valve, the flow of which is matched with the volume of the water boiling container and the power of the electric heating element.
The further scheme is as follows: the water boiling container is a tubular component, and the water boiling container and the electric heating element form an instant electric heating water pipe.
The further scheme is as follows: the electric heating element is a resistance heating device.
The further scheme is as follows: the electric heating element is an electromagnetic heating coil, and the water boiling container is made of a ferromagnetic material at least at a portion covered with the electric heating element, or when the water boiling container is made of a non-ferromagnetic material, a ferromagnetic material layer is provided between the electric heating element and the water boiling container.
The further scheme is as follows: the electric control device comprises a liquid level detection device for detecting the water level in the water boiling container, a temperature detection device for detecting the water temperature in the water boiling container and a controller for main control, wherein the controller comprises a signal conversion module, a CPU module, a man-machine interaction module, a relay group and a power supply module, and the relay group comprises a plurality of relays; the CPU module is in signal electric connection with the signal conversion module, the relay group is in signal electric connection with the CPU module, and the human-computer interaction module is in electric connection with the CPU module; the temperature detection device and the liquid level detection device are respectively and electrically connected with a signal conversion module of the controller; and the water flow control device, the electric heating element and the emptying valve when the emptying valve adopts an electric valve are respectively and electrically connected with corresponding relays in a relay group of the controller.
The further scheme is as follows: the water heater for the railway train further comprises a flame-retardant heat-insulating layer arranged on the periphery of the water boiling container and the electric heating element, and a fireproof and explosion-proof shell arranged on the periphery of the flame-retardant heat-insulating layer; the periphery of the controller of the electric control device is also provided with a fireproof and explosion-proof shell.
The further scheme is as follows: the electric control device also comprises an overheating protection device fixedly arranged on the water boiling container, and the overheating protection device is connected in series between the relay corresponding to the electric heating element and the electric heating element.
The further scheme is as follows: the overheat protection device is a kick type temperature controller.
The further scheme is as follows: the controller of the electric control device also comprises a GPS positioning module used for providing altitude information when in use, and the GPS positioning module is electrically connected with the CPU module.
The utility model discloses has positive effect: (1) the utility model discloses a water heater for railway train, it through overall structure especially the emptier structure and its with the water intake pipe, heat water container connection structure design, can will heat the inside evacuation of depositing water of emptier and pipeline when needing, therefore can effectively prevent frostbite, can solve among the prior art device of the same kind because of inside deposit water and be difficult to the evacuation, about 40 ℃ the technical problem that easily takes place the frost crack damage under the lower temperature environment even. (2) The utility model discloses a water heater for railway train, it sets up fire-retardant heat preservation through the periphery at the container of heating up water, sets up fire-proof and explosion-proof shell in the periphery of fire-retardant heat preservation, adds in the controller outside and establishes fire-proof and explosion-proof casing and designs the structural design such as excess temperature protection device on the container of heating up water, makes its in use effectively realize fire prevention and explosion protection, ensures railway train operation safety, can effectively solve the technical problem that the device of the same kind does not exist the potential safety hazard because of the fire prevention and explosion consideration among the prior art. (3) The utility model discloses a water heater for railway train, it is through setting up the GPS orientation module that can provide the altitude information in the controller, and the boiling point that the different altitude of CPU module storage at the controller corresponds, when the train went the plateau district, the CPU module is according to the boiling point of the corresponding train position water of confirming of altitude information that the GPS orientation module provided, utilize the temperature information of temperature-detecting device monitoring, when water is heated the boiling point of here, the corresponding control electric heating element outage stop heating of CPU module, thereby can effectively solve among the prior art device of the same kind because of not considering train the altitude of locating to continue the heating to the influence of boiling point of water and produce a large amount of steam and probably cause the problem that the water heater dry combustion method brought the potential safety hazard.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention;
Fig. 2 is a schematic structural diagram of another embodiment of the present invention;
Fig. 3 is a schematic diagram of the circuit structure of the present invention.
The reference numbers in the above figures are as follows:
The water heating device comprises a water boiling container 1, a water conveying pipeline 2, a water inlet pipe 22, a water outlet pipe 23, an electric heating element 3, a water flow control device 4, an emptying device 5, a tee joint 51, an emptying pipe 52, an emptying valve 53, an electric control device 6, a liquid level detection device 61, a temperature detection device 62, a controller 63, a fireproof and explosion-proof shell 63-1, an overheating protection device 64, a flame-retardant heat-preservation layer 7 and a fireproof and explosion-proof shell 8.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
(example 1)
referring to fig. 1 and fig. 3, the water heater for railway trains of the present embodiment is mainly composed of a water boiling container 1, a water conveying pipeline 2, an electric heating element 3, a water flow control device 4, an emptying device 5 and an electric control device 6.
The water boiling container 1 is a hollow component with a water inlet arranged below and a water outlet arranged above, in the embodiment, the water boiling container 1 preferably adopts a tubular piece with the upper end and the lower end closed, the water inlet of the water boiling container 1 is arranged at the lower axial end of the water boiling container, and the water outlet is arranged above the water boiling container in the axial direction.
The water conveying pipeline 2 comprises a water conveying pipe 21, a water inlet pipe 22 and a water outlet pipe 23, wherein the upper end of the water inlet pipe 22 is fixedly connected with a water inlet of the water boiling container 1 in a sealing manner; the lower end of the water inlet pipe 22 is communicated with the inner end of the water delivery pipe 21, and the outer end of the water delivery pipe 21 is externally connected with a water source on a railway train when in use; one end of the water outlet pipe 23 is fixedly connected with the water outlet of the water boiling container 1 in a sealing way; the other end of the water outlet pipe 23 is used for outputting boiled (hot) water outwards when in use.
The electric heating element 3 is arranged outside the water boiling container 1, preferably on the peripheral wall of the water boiling container 1, and the electric heating element 3 can be formed by a resistance type heating device, or the electric heating element 3 can be formed by an electromagnetic type heating device; when the electric heating element is an electromagnetic heating coil, the material of at least the portion of the water boiling container 1 covered by the electric heating element 3 is a ferromagnetic material, or when the material of the water boiling container 1 is a non-ferromagnetic material, a ferromagnetic material layer (not shown) is provided between the electric heating element 3 and the water boiling container 1, so that the electromagnetic heating coil can heat the water boiling container 1. The electromagnetic heating coil is a prior art, and the structure and the working principle thereof are not described in detail. In the present embodiment, the electric heating element 3 is preferably an electromagnetic heating coil. In this embodiment, the water boiling container 1 and the electric heating element 3 disposed on the outer wall thereof constitute an instant electric heating water pipe.
The water flow control device 4 is arranged on the water conveying pipe 21 of the water conveying pipeline 2, and the water flow control device 4 is used for controlling the water quantity injected into the water boiling container 1. The water flow control device 4 can adopt a commercially available electric flow regulating valve; the water flow control device 4 can also adopt an electric water pump, an electric valve or an electromagnetic valve with the flow rate matched with the volume of the water boiling container 1 and the heating power of the electric heating element 3. In this embodiment, the water flow control device 4 is preferably an electric water pump.
The emptying device 5 comprises an emptying pipe 52 and an emptying valve 53 arranged on the emptying pipe 52, wherein the upper end of the emptying pipe 52 is communicated with the inner end of the water conveying pipe 21 of the water conveying pipeline 2 and the lower end of the water inlet pipe 22; the lower end of the evacuation tube 52 is connected in use to a trap or line on a railroad train. Preferably, the emptying device 5 further includes a tee 51, one connection end of the tee 51 is connected to the inner end of the water pipe 21, a second connection end of the tee 51 is vertically connected to the lower end of the water inlet pipe 22, and a third connection end of the tee 51 is vertically connected to the upper end of the emptying pipe 52, so that the tee 51 realizes the intercommunication of the upper end of the emptying pipe 52, the inner end of the water pipe 21 and the lower end of the water inlet pipe 22. The drain valve 53 is used to control the drain of the stored water in the water boiling container 1 and the water delivery pipeline 2. The evacuation valve 53 may be a manual valve or an electric valve, and in this embodiment, the evacuation valve 53 is preferably an electric valve.
In this embodiment, the electronic control device 6 includes a liquid level detection device 61, a temperature detection device 62, and a controller 63. The liquid level detection device 61 is arranged on the water boiling container 1 or in the water boiling container 1 and is used for detecting the water level in the water boiling container 1 in use, when the water heater for the railway train of the embodiment is used for supplying water for the first time, the liquid level detection device 61 plays a role in preventing cold water from being directly discharged from the water outlet pipe 23, and can also play a role in preventing the problem of dry burning of water in the water boiling container 1 in normal use. The liquid level detecting device 61 is preferably a liquid level sensor in this embodiment. The temperature detector 62 is provided in the water boiling container 1 to detect the temperature of the water in the water boiling container 1, and a temperature sensor is preferably used in the present embodiment as the temperature detector 62. The controller 63 mainly comprises a signal conversion module, a CPU module, a human-computer interaction module, a relay group and a power module, wherein the CPU module is in signal electric connection with the signal conversion module, the relay group is in signal electric connection with the CPU module, and the human-computer interaction module is in electric connection with the CPU module. The signal conversion module is used for converting signals such as the water level in the water boiling container 1 detected by the liquid level detection device 61 and the water temperature in the water boiling container 1 detected by the temperature detection device 62 into signals which can be received by the CPU module and then sending the signals to the CPU module, and the signal conversion module is a circuit module which is commonly used in the prior art, and the structure of the signal conversion module is not described in detail. The human-computer interaction module can adopt a keyboard or a touch screen, and the touch screen is preferably selected in the embodiment and used for setting parameters such as water temperature and water level in the water boiling container 1 and displaying the working state in real time; and the relay group comprises a plurality of relays and is used for executing power supply on-off control on the electric heating element 3, the water flow control device 4 and the emptying valve 53 when the emptying valve 53 adopts an electric valve according to the instruction of the CPU module. The CPU module is used for realizing the main control of the water heater for the railway train in the embodiment; the CPU module comprises a CPU chip and a memory, and the program built in the CPU chip is a simple program in the prior art. The power module is used for providing a working power supply, and when the power module is used, the input end of the power module is externally connected with a power supply on a train. The signal conversion module, the CPU module, the human-computer interaction module, the relay group, and the power supply module of the controller 63 are all mature prior art, and the specific circuit structure thereof is not described in detail.
The liquid level detection device 62 and the temperature detection device 61 are respectively electrically connected with a signal conversion module of the controller 63; the electric heating element 3, the water flow rate control device 4, and the evacuation valve 53 when the evacuation valve 53 is an electric valve are electrically connected to corresponding relays in a relay group of the controller 63, respectively.
The water heater for railway trains of the present embodiment can instantly heat supply boiled (hot) water for railway trains when in use, when emptying is needed (for example, freezing prevention), the controller 63 is firstly used for controlling the water flow control device 4 to close so as to cut off the connection between the water heater for the railway train and the water source on the railway train, then the emptying valve 53 of the emptying device 5 is manually or automatically opened, the stored water in the water boiling container 1 is almost completely emptied outwards from the water inlet arranged at the lower end of the water boiling container through the emptying pipe 52 of the emptying device 5, the stored water in the water conveying pipeline 2 is also almost emptied through the tee joint 51 and the emptying pipe 52 of the emptying device 5, because the water boiling container 1 and the pipeline have no water storage, the anti-freezing device can effectively prevent freezing, solves the problems that the similar devices in the prior art are difficult to completely empty the water storage inside, the electric water heater is easy to be damaged by frost crack under the environment of extremely low temperature of about minus 40 ℃ or even lower.
(example 2)
Referring to fig. 2 and fig. 3, the water heater for a railway train of the present embodiment is the same as embodiment 1 in other respects, except that a flame-retardant insulating layer 7 is further disposed on the peripheries of the water boiling container 1 and the electric heating element 3, and a fire-proof and explosion-proof housing 8 is further disposed on the periphery of the flame-retardant insulating layer 7; the controller 63 is also provided with a fireproof and explosion-proof shell 63-1 at the periphery. The flame-retardant heat-insulating layer 7 is made of polyurethane foam material, and the fireproof and explosion-proof shell 8 and the fireproof and explosion-proof shell 63-1 of the controller 63 are made of 304 stainless steel.
The water heater for the railway train of this embodiment except can solve in embodiment 1 better the frostproofing problem when not using, in use can effectively realize fire prevention explosion-proof moreover, ensures railway train operation safety, can effectively solve among the prior art device of the same kind fire prevention explosion-proof consideration not enough have the potential safety hazard problem.
Preferably, the electric control device 6 further comprises an overheating protection device 64, the overheating protection device 64 is preferably a snap-action thermostat of KSD301 type, the overheating protection device 64 is fixedly arranged on the outer peripheral wall of the water boiling container 1, the overheating protection device 64 is connected in series between a relay group of the controller 63 corresponding to the electric heating element 3 and the electric heating element, and the overheating protection device 64 is used for automatically cutting off the power supply of the electric heating element 3 by the overheating protection device 64 without being controlled by a corresponding relay by a CPU module when the rated maximum temperature of the overheating protection device 64 is exceeded by the water boiling container, thereby increasing a safety guarantee.
Preferably, the controller 63 is further provided with a GPS positioning module for providing altitude information, the CPU module of the controller 63 correspondingly stores boiling points of water at different altitudes, when the train is driven to the plateau area, the CPU module correspondingly determines the boiling point of water at the position of the train according to the altitude information provided by the GPS positioning module, and in combination with the temperature information detected by the temperature detection device 62, when the water is heated to the boiling point, the CPU module correspondingly controls the electric heating element 3 to stop heating when the power is off, so that the problems of the prior art that the similar device continues to heat due to the fact that the altitude at which the train is located is not considered, a large amount of steam is generated, and there is a potential safety hazard that the water heater burns out and the like are effectively solved. The GPS module and the altitude information provided by the GPS module, and the boiling points of water corresponding to different altitudes are mature prior art, and are not described in detail. The GPS module can adopt the existing module purchased in the market and can also adopt the GPS locator purchased in the market.
The above embodiments are illustrative of the specific embodiments of the present invention, but not limiting to the present invention, and those skilled in the relevant art can also make various changes and modifications to obtain the equivalent technical solutions without departing from the spirit and scope of the present invention, so that all equivalent technical solutions should fall under the protection scope of the present invention.
Claims (10)
1. The utility model provides a water heater for railway train, includes container, raceway and electric heating element of heating up water, its characterized in that: the device also comprises a water flow control device, an emptying device and an electric control device;
the water boiling container is a hollow component with a water inlet arranged below and a water outlet arranged above; the electric heating element is arranged on the peripheral wall of the water boiling container; the water conveying pipeline comprises a water conveying pipe, a water inlet pipe and a water outlet pipe; the water flow control device is arranged on the water conveying pipe; the emptying device comprises an emptying pipe and an emptying valve arranged on the emptying pipe, the emptying valve is a manual valve or an electric valve, and the upper end of the water inlet pipe is fixedly connected with the water inlet of the water boiling container in a sealing manner; the lower end of the water inlet pipe, the upper end of the emptying pipe and the inner end of the water conveying pipe are communicated, when the water-saving device is used, the outer end of the water conveying pipe is connected with a train water source, and the lower end of the emptying pipe is connected with a water storage recovery device or a pipeline on a railway train; the electric control device is used for controlling the on-off of a power supply when the water flow control device, the electric heating element and the emptying valve are electric valves.
2. The water heater for a railway train according to claim 1, wherein: the emptying device also comprises a tee joint, one connecting end of the tee joint is connected with the inner end of the water conveying pipe, the second connecting end of the tee joint is connected with the lower end of the water inlet pipe, and the third connecting end of the tee joint is connected with the upper end of the emptying pipe; the water flow control device is an electric flow control valve, or the water flow control device is an electric water pump, an electric valve or an electromagnetic valve, the flow of which is matched with the volume of the water boiling container and the power of the electric heating element.
3. the water heater for a railway train according to claim 1, wherein: the water boiling container is a tubular component, and the water boiling container and the electric heating element form an instant electric heating water pipe.
4. The water heater for a railway train according to claim 1, wherein: the electric heating element is a resistive heating device.
5. The water heater for a railway train according to claim 1, wherein: the electric heating element is an electromagnetic heating coil, the material of the part of the water boiling container at least covered by the electric heating element is ferromagnetic material, or when the material of the water boiling container is non-ferromagnetic material, a ferromagnetic material layer is arranged between the electric heating element and the water boiling container.
6. The water heater for a railway train according to any one of claims 1 to 5, wherein: the electric control device comprises a liquid level detection device for detecting the water level in the water boiling container, a temperature detection device for detecting the water temperature in the water boiling container and a controller for main control, wherein the controller comprises a signal conversion module, a CPU module, a man-machine interaction module, a relay group and a power supply module, and the relay group comprises a plurality of relays; the CPU module is in signal electric connection with the signal conversion module, the relay group is in signal electric connection with the CPU module, and the human-computer interaction module is in electric connection with the CPU module; the temperature detection device and the liquid level detection device are respectively and electrically connected with a signal conversion module of the controller; and the water flow control device, the electric heating element and the emptying valve when the emptying valve adopts an electric valve are respectively and electrically connected with corresponding relays in a relay group of the controller.
7. The water heater for a railway train according to claim 6, wherein: the water heater for the railway train further comprises a flame-retardant insulating layer arranged on the periphery of the water boiling container and the electric heating element, and a fireproof and explosion-proof shell arranged on the periphery of the flame-retardant insulating layer; and a fireproof and explosion-proof shell is further arranged at the periphery of the controller of the electric control device.
8. the water heater for a railway train according to claim 6, wherein: the electric control device also comprises an overheating protection device fixedly arranged on the water boiling container, and the overheating protection device is connected in series between the relay corresponding to the electric heating element and the electric heating element.
9. The water heater for a railway train as claimed in claim 8, wherein: the overheat protection device is a kick type temperature controller.
10. the water heater for a railway train according to claim 6, wherein: the controller of the electric control device also comprises a GPS positioning module used for providing altitude information when in use, and the GPS positioning module is electrically connected with the CPU module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920353793.3U CN209801767U (en) | 2019-03-19 | 2019-03-19 | Water heater for railway train |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920353793.3U CN209801767U (en) | 2019-03-19 | 2019-03-19 | Water heater for railway train |
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| CN209801767U true CN209801767U (en) | 2019-12-17 |
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| CN201920353793.3U Active CN209801767U (en) | 2019-03-19 | 2019-03-19 | Water heater for railway train |
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| CN (1) | CN209801767U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109899963A (en) * | 2019-03-19 | 2019-06-18 | 常州剑湖金城车辆设备有限公司 | Railway train Water heater for vehicle |
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2019
- 2019-03-19 CN CN201920353793.3U patent/CN209801767U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109899963A (en) * | 2019-03-19 | 2019-06-18 | 常州剑湖金城车辆设备有限公司 | Railway train Water heater for vehicle |
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