CN210267486U - Big difference in temperature removes heat accumulation car - Google Patents
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- CN210267486U CN210267486U CN201921274298.XU CN201921274298U CN210267486U CN 210267486 U CN210267486 U CN 210267486U CN 201921274298 U CN201921274298 U CN 201921274298U CN 210267486 U CN210267486 U CN 210267486U
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Abstract
The utility model provides a big difference in temperature removes heat accumulation car, including tractor, insulation can, circulating water pump, vapour-water heat exchanger, electric heat pump, water-water heat exchanger and central controller, be equipped with the fused salt aqueous solution in the insulation can, can realize the heat accumulation of fused salt aqueous solution through vapour-water heat exchanger or water-water heat exchanger. The utility model adopts the fused salt water solution to store heat, and the heat storage temperature is high and the heat storage capacity is large; when the molten salt solution is in a low-temperature stage, the electric heat pump is used for assisting in heat supply, so that large-temperature-difference heat supply of the molten salt solution can be realized, and further, the heat source in the heat storage vehicle can be utilized to the greatest extent.
Description
Technical Field
The utility model relates to a big difference in temperature removes heat accumulation car.
Background
At present, the central heating is mainly used for heating residents in urban areas in China, but the central heating has the defects of large construction scale, long pipe network, serious loss, inflexible heating adjustment, higher heating cost and the like, so that the existing heating pipe network cannot quickly meet the heating and hot water supply requirements of special heat energy users such as newly-built communities, enterprises and public institutions, stadiums, hotels, fitness and entertainment places in non-heating areas, non-heating periods and areas not covered by the central heating pipe network; meanwhile, in the urban high-energy-consumption industrial industries such as steel, electric power, chemical industry and the like in China, a large amount of industrial waste heat and waste heat are discharged in the forms of steam, medium-high temperature hot water, high-temperature flue gas and the like, and are wasted. Under the background of the insufficient heat supply and the energy waste, along with the continuous development of the society, some mobile heat storage vehicles appear in the market at present, and the mobile heat storage vehicles can collect waste heat energy sources and can quickly meet the heating demand of non-heating areas.
Chinese patent No. CN102287868B discloses a method for movably utilizing waste heat steam and a mobile heat storage vehicle for supplying steam and hot water, the waste heat steam is stored and transported in the mobile heat storage vehicle, the mobile heat storage vehicle can supply steam, and can also supply hot water with different temperatures through a built-in coil heat exchanger, thereby overcoming the defect that the hot water mobile heat supply vehicle can only supply hot water singly, but the steam is used as a heat storage material, and the heat storage tank body needs to bear larger pressure, thereby greatly increasing the manufacturing cost of equipment, the heat storage cost and the dangers of the transportation, the heat storage and release process and the equipment standing standby process.
Chinese patent publication No. CN106985724A discloses a phase-change material based mobile thermal storage vehicle, and the thermal storage device includes a housing, a heat-conducting phase-change material filled in the housing, and a heat exchange device. The mobile heat storage vehicle is filled with a large amount of high-performance phase-change materials as heat storage media, which belong to heat transfer of a heat source end and a client end but not medium transfer, but the medium-low temperature phase-change heat storage materials suitable for the mobile heat storage vehicle at the present stage have the following problems: (1) the durability of the phase change energy storage material is a problem. Firstly, the thermal physical property of the phase-change material is degraded in the cyclic phase-change process; secondly, the phase change energy storage material has the phenomena of leakage and volatilization in the long-term recycling process, and the phenomena are represented as frosting on the surface of the material; in addition, the phase-change material acts on the base material, the stress generated in the phase-change process of the phase-change material enables the base material to be easily damaged, and meanwhile, the stress can also have a certain corrosion effect on accessory equipment. (2) The economical efficiency of the phase change energy storage material is high. Various phase-change energy storage materials and phase-change energy storage composite materials are high in price, so that the storage cost of unit heat energy is increased, and the advantages of the phase-change energy storage materials and other heat storage methods are lost. (3) The energy storage performance of the phase change energy storage material. In order to enable an energy storage body to be smaller and lighter, the phase change energy storage composite material is required to have higher energy storage performance, but the heat conduction performance of the current phase change energy storage composite material is generally poor, the energy storage density is generally less than 120J/g, and scholars predict that the energy storage density of the phase change energy storage composite material can be improved to 150-200J/g in the coming years. However, even if 200J/g is reached, the energy storage performance is still lower compared with the current price of the energy storage material.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a large temperature difference mobile heat storage vehicle, which adopts the fused salt water solution to store heat, and has high heat storage temperature and large heat storage capacity; when the molten salt solution is in a low-temperature stage, the electric heat pump is used for assisting in heat supply, so that large-temperature-difference heat supply of the molten salt solution can be realized, and further, the heat source in the heat storage vehicle can be utilized to the greatest extent.
The utility model provides a technical scheme that its technical problem adopted is: a large-temperature-difference mobile heat storage vehicle comprises a tractor, an insulation can, a circulating water pump, a steam-water heat exchanger, an electric heat pump, a water-water heat exchanger and a central controller, wherein the insulation can is arranged on a chassis of the tractor, the circulating water pump, the steam-water heat exchanger, the electric heat pump, the water-water heat exchanger and the central controller are all arranged on the chassis of the tractor, a molten salt water solution is filled in the insulation can, a first pipeline communicated with the interior of the insulation can is arranged at the upper part of the insulation can and is connected with a water inlet of the circulating water pump, a second pipeline is arranged at a water outlet of the circulating water pump, a first electric control valve is connected on the second pipeline in series, a fourth pipeline is arranged at the water inlet of the steam-water heat exchanger, and the second pipeline is connected with the fourth pipeline and a third pipeline in a parallel connection mode, a second electric control valve and a third electric control valve are connected in series on the third pipeline, a water outlet of the steam-water heat exchanger is connected with a heat supply fluid inlet of the electric heating pump through a fifth pipeline, a fourth electric control valve and a fifth electric control valve are connected in series on the fifth pipeline, a tenth pipeline communicated with the third pipeline is arranged on the fifth pipeline, the connection position of the tenth pipeline and the fifth pipeline is positioned between the fourth electric control valve and the fifth electric control valve, a heat supply fluid outlet of the electric heating pump is connected with the heat supply fluid inlet of the water-water heat exchanger through a sixth pipeline, a sixth electric control valve and a seventh electric control valve are connected in series on the sixth pipeline, an eleventh pipeline communicated with the third pipeline is arranged on the sixth pipeline, and the connection position of the eleventh pipeline and the sixth pipeline is positioned between the sixth electric control valve and the seventh electric control valve, the joints of the tenth pipeline and the eleventh pipeline with the third pipeline are both positioned between the second electric control valve and the third electric control valve, the third pipeline is also connected with a sixteenth electric control valve in series, the sixteenth electric control valve is positioned between the joints of the tenth pipeline and the eleventh pipeline with the third pipeline, a seventh pipeline is arranged at a heat supply fluid outlet of the water-water heat exchanger, an eighth electric control valve is connected with the seventh pipeline in series, a sixteenth pipeline communicated with the interior of the thermal insulation box is arranged at the lower part of the thermal insulation box, a water outlet end of the third pipeline and a water outlet end of the seventh pipeline are connected with the sixteenth pipeline in parallel, a heat absorption fluid inlet of the electric heat pump and a heat absorption fluid inlet of the water-water heat exchanger are connected with the eighth pipeline in series in parallel, and the tenth electric control valve is arranged on a pipeline of the heat absorption fluid inlet of the electric heat pump, an eleventh electric control valve is connected in series with a pipeline of a heat absorption fluid inlet of the water-water heat exchanger, a heat absorption fluid outlet of the electric heating pump and a heat absorption fluid outlet of the water-water heat exchanger are connected with a ninth pipeline in a parallel mode, a ninth electric control valve is connected in series with a pipeline of the heat absorption fluid outlet of the electric heating pump, a twelfth electric control valve is connected in series with a pipeline of the heat absorption fluid outlet of the water-water heat exchanger, a second temperature sensor is arranged on the eighth pipeline, and a twelfth pipeline and a thirteenth pipeline are respectively arranged on a steam inlet and a steam outlet of the steam-water heat exchanger;
a fourteenth pipeline communicated with the interior of the heat insulation box is arranged at the upper part of the heat insulation box, a thirteenth electric control valve is connected on the fourteenth pipeline in series, a seventeenth pipeline communicated with the interior of the heat insulation box is arranged at the lower part of the heat insulation box, a fifteenth electric control valve is connected on the seventeenth pipeline in series, a first temperature sensor is arranged on the first pipeline, a second temperature sensor is arranged on the eighth pipeline, and a central controller, a circulating water pump, an electric heating pump, a first electric control valve, a second electric control valve, a third electric control valve, a fourth electric control valve, a fifth electric control valve, a sixth electric control valve, a seventh electric control valve, an eighth electric control valve, a ninth electric control valve, a tenth electric control valve, an eleventh electric control valve, a twelfth electric control valve, a thirteenth electric control valve, a fifteenth electric control valve, And the sixteenth electric control valve, the first temperature sensor and the second temperature sensor are electrically connected.
Preferably, a fifteenth pipeline communicated with the interior of the heat insulation box is arranged at the upper part of the heat insulation box, a fourteenth electric control valve is connected on the fifteenth pipeline in series, and the fourteenth electric control valve is connected with the central controller.
Furthermore, a pressure sensor is arranged on the second pipeline, a third temperature sensor and a first flow sensor are arranged on the twelfth pipeline, a fifth temperature sensor is arranged on the thirteenth pipeline, a fourth temperature sensor and a second flow sensor are arranged on the ninth pipeline, and the pressure sensor, the third temperature sensor, the fourth temperature sensor, the fifth temperature sensor, the first flow sensor, the second flow sensor and the central controller are connected.
Furthermore, a plurality of diversion isolation plates in a left-right staggered distribution state are sequentially arranged in the heat preservation box from top to bottom, support frames used for supporting and fixing the front side wall and the rear side wall of the diversion isolation plates are arranged on the front side wall and the rear side wall in the heat preservation box, and the molten salt water solution flows in a snake shape in the heat preservation box under the diversion effect of the diversion isolation plates.
Further, the molten salt aqueous solution is a mixed solution of NaNO3, KNO3, K2CO3, CaCl2, MgCl2 or NH4Cl and water.
Preferably, the outer side walls of the first pipeline, the second pipeline, the third pipeline, the fourth pipeline, the fifth pipeline, the sixth pipeline, the seventh pipeline, the eighth pipeline, the ninth pipeline, the tenth pipeline, the eleventh pipeline, the twelfth pipeline, the thirteenth pipeline, the fourteenth pipeline, the fifteenth pipeline, the sixteenth pipeline and the seventeenth pipeline are all provided with insulating layers.
The utility model has the advantages that: 1. the utility model discloses an on-vehicle fused salt aqueous solution carries out the heat accumulation, and fused salt aqueous solution has higher boiling point to water, and the cost is lower, the stable performance, and fused salt aqueous solution heat accumulation temperature is the highest 150 ℃ and not boiling under the ordinary pressure to the heat accumulation car heat supply security has been improved greatly.
2. The utility model discloses an electric heat pump can realize the low temperature heat supply, and its heat accumulation exothermic temperature difference can reach 145 ℃, then greatly increased removes the heat transport ability and the transport efficiency of heat accumulation car, has reduced the unit heat transport cost of removing the heat accumulation car.
3. The heat storage system, the heat release system and the heat pump system in the utility model are mutually independent, each part can be independently used, and the heat storage can be carried out by utilizing the steam-water heat exchanger and the water-water heat exchanger and utilizing the steam heat source or the high-temperature water heat source.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some of the preferred embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a flow chart of the heat supply control method of the present invention;
in the figure: 1 tractor, 2 insulation can, 21 diversion isolation plate, 22 support frame, 23 molten salt water solution, 3 circulating water pump, 4 steam-water heat exchanger, 5 electric heat pump, 6 water-water heat exchanger, 101 first pipeline, 102 second pipeline, 103 third pipeline, 104 fourth pipeline, 105 fifth pipeline, 106 sixth pipeline, 107 seventh pipeline, 108 eighth pipeline, 109 ninth pipeline, 110 tenth pipeline, 111 eleventh pipeline, 112 twelfth pipeline, 113 thirteenth pipeline, 114 fourteenth pipeline, 115 fifteenth pipeline, 116 sixteenth pipeline, 117 seventeenth pipeline, 201 first electric control valve, 202 second electric control valve, 203 third electric control valve, 204 fourth electric control valve, 205 fifth electric control valve, 206 sixth electric control valve, 207 seventh electric control valve, 208 eighth electric control valve, 209 ninth electric control valve, 210 tenth electric control valve, 211 eleventh electric control valve, 212 twelfth electric control valve, 213 thirteenth electric control valve, 214 fourteenth electric control valve, 215 fifteenth electric control valve, 216 sixteenth electric control valve, 301 first temperature sensor, 302 second temperature sensor, 303 third temperature sensor, 304 fourth temperature sensor, 305 fifth temperature sensor, 401 pressure sensor, 501 first flow sensor, 502 second flow sensor.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the following specific embodiments and accompanying drawings 1-2, and it is obvious that the described embodiments are only a part of the preferred embodiments of the present invention, and not all embodiments. Those skilled in the art can make similar variations without departing from the spirit of the invention, and therefore the invention is not limited by the specific embodiments disclosed below.
The utility model provides a big difference in temperature removes heat accumulation car (as shown in figure 1), including tractor 1, insulation can 2, circulating water pump 3, vapour-water heat exchanger 4, electric heat pump 5, water-water heat exchanger 6 and central controller, vapour-water heat exchanger 4. The electric heat pump 5 and the water-water heat exchanger 6 are both existing mature products in the field, and the detailed structure thereof will not be described again, the heat preservation box 2 is disposed on the chassis of the tractor 1, the circulating water pump 3, the steam-water heat exchanger 4, the electric heat pump 5, the water-water heat exchanger 6 and the central controller are all disposed on the chassis of the tractor 1, the heat preservation box 2 is filled with a molten salt aqueous solution 23, in this specific embodiment, the molten salt aqueous solution 23 may be NaNO3Or KNO3Or K2CO3Or CaCl2Or MgCl2Or NH4The mixed liquid of Cl and water, the fused salt aqueous solution 23 has higher boiling point relative to water, the heat storage temperature can reach 150 ℃ at the maximum under a certain concentration and can not boil under normal pressure, the advantages of extremely low condensation point, low cost, high specific heat, strong heat storage capacity and simple preparation process are achieved, a first pipeline 101 communicated with the interior of the heat preservation box 2 is arranged at the upper part of the heat preservation box 2, the first pipeline 101 is connected with a water inlet of the circulating water pump 3, the circulating water pump 3 utilizes the first pipeline 101 to extract the fused salt aqueous solution 23 from the heat preservation box 2, a second pipeline 102 is arranged at a water outlet of the circulating water pump 3, a first electric control valve 201 is connected on the second pipeline 102 in series, a fourth pipeline 104 is arranged at a water inlet of the steam-water heat exchanger 4, and the second pipeline 102 is connected with the fourth pipeline 104 and the first pipeline 104 in parallelThe third pipeline 103 is connected, a second electric control valve 202 and a third electric control valve 203 are connected in series with the third pipeline 103, the water outlet of the steam-water heat exchanger 4 is connected with the heating fluid inlet of the electric heating pump 5 through a fifth pipeline 105, a fourth electric control valve 204 and a fifth electric control valve 205 are connected in series with the fifth pipeline 105, a tenth pipeline 110 communicated with the third pipeline 103 is arranged on the fifth pipeline 105, the connection position of the tenth pipeline 110 and the fifth pipeline 105 is positioned between the fourth electric control valve 204 and the fifth electric control valve 205, the heating fluid outlet of the electric heating pump 5 is connected with the heating fluid inlet of the water-water heat exchanger 6 through a sixth pipeline 106, a sixth electric control 206 and a seventh electric control valve 207 are connected in series with the sixth pipeline 106, an eleventh pipeline 111 communicated with the third pipeline 103 is arranged on the sixth pipeline 106, and the connection point of the eleventh pipeline 111 and the sixth pipeline 106 is between the sixth electric control valve 206 and the seventh electric control valve 207, the connection points of the tenth pipeline 110 and the eleventh pipeline 111 and the third pipeline 103 are both between the second electric control valve 202 and the third electric control valve 203, the third pipeline 103 is also connected with a sixteenth electric control valve 216 in series, the sixteenth electric control valve 216 is between the connection points of the tenth pipeline 110 and the eleventh pipeline 111 and the third pipeline 103, a seventh pipeline 107 is arranged at the outlet of the heat supply fluid of the water-water heat exchanger 6, an eighth electric control valve 208 is connected with the seventh pipeline 107 in series, a sixteenth pipeline 116 communicated with the interior of the incubator 2 is arranged at the lower part of the incubator 2, the sixteenth pipeline 116 is used for guiding the reflowing molten salt water solution 23 into the incubator 2, the water outlet end of the third pipeline 103 and the water outlet end of the seventh pipeline 107 are connected with the sixteenth pipeline 116 in parallel, the heat absorbing fluid inlet of the electric heat pump 5 and the heat absorbing fluid inlet of the water-water heat exchanger 6 are connected in parallel with an eighth pipeline 108, a tenth electric control valve 210 is connected in series with the pipeline of the heat absorbing fluid inlet of the electric heat pump 5, an eleventh electric control valve 211 is connected in series with the pipeline of the heat absorbing fluid inlet of the water-water heat exchanger 6, the heat absorbing fluid outlet of the electric heat pump 5 and the heat absorbing fluid outlet of the water-water heat exchanger are connected in parallel with a ninth pipeline 109, and the heat absorbing fluid outlet of the electric heat pump 5 and the heat absorbing fluid outlet of the water-water heat exchanger are connected in parallel withA ninth electric control valve 209 is connected in series on the pipeline of the heat absorption fluid outlet, a twelfth electric control valve 212 is connected in series on the pipeline of the heat absorption fluid outlet of the water-water heat exchanger 6, in practical application, the eighth pipeline 108 is used for being connected with low-temperature return water at the heating end, the ninth pipeline 109 is used for being connected with the heating end, a second temperature sensor 302 is arranged on the eighth pipeline 108, a twelfth pipeline 112 and a thirteenth pipeline 113 are respectively arranged on the steam inlet and the steam outlet of the steam-water heat exchanger 4, the twelfth pipeline 112 is used for being connected with the steam supply end, and the thirteenth pipeline 113 is used for conveying the steam flowing through out of the steam-water heat exchanger 4.
In practical application, the fourteenth pipeline 114 is used for injecting molten salt and water into the heat preservation box 2, a thirteenth electric control valve 213 is connected in series to the fourteenth pipeline 114, a seventeenth pipeline 117 is arranged at the lower part of the heat preservation box 2 and is communicated with the interior of the heat preservation box 2, a fifteenth electric control valve 215 is connected in series to the seventeenth pipeline 117, in practical application, the seventeenth pipeline 117 is used for discharging dirt or molten salt aqueous solution 23 in the heat preservation box 2, a first temperature sensor 301 is arranged on the first pipeline 101, the first temperature sensor 301 is used for detecting the heat supply temperature of the molten salt aqueous solution 23 in the heat supply process in real time, a second temperature sensor 302 is arranged on the eighth pipeline 108, and the second temperature sensor 302 is used for detecting the heat supply process in real time, and the central controller is electrically connected with the circulating water pump 3, the electric heating pump 4, the first electric control valve 201, the second electric control valve 202, the third electric control valve 203, the fourth electric control valve 204, the fifth electric control valve 205, the sixth electric control valve 206, the seventh electric control valve 207, the eighth electric control valve 208, the ninth electric control valve 209, the tenth electric control valve 210, the eleventh electric control valve 211, the twelfth electric control valve 212, the thirteenth electric control valve 213, the fifteenth electric control valve 215, the first temperature sensor 301 and the second temperature sensor 302.
When the heat preservation box 2 is used for injecting the molten salt and the water, in order to facilitate the exhaust of the gas in the heat preservation box 2, a fifteenth pipeline 115 communicated with the interior of the heat preservation box 2 is arranged at the upper part of the heat preservation box 2, a fourteenth electric control valve 214 is connected to the fifteenth pipeline 115 in series, the fourteenth electric control valve 214 is connected with the central controller 8, and when the exhaust is needed, the central controller 8 opens the fourteenth electric control valve 214, so that the heat preservation box 2 can be communicated with the outside atmosphere.
In order to detect the water supply pressure of the circulating water pump 3 during heating, a pressure sensor 401 is provided on the second pipe 102, when the heat source is used for heat storage under the action of high-temperature steam, the temperature and the flow of the high-temperature steam are convenient to detect, here, the twelfth pipe 112 is provided with a third temperature sensor 303 and a first flow sensor 501, and further, in order to detect the vapor reflux temperature, here, the thirteenth pipe 113 is provided with a fifth temperature sensor 305, which is provided to detect the temperature and flow rate of the heating hot water during heating, here, the ninth pipe is provided with a fourth temperature sensor 304 and a second flow sensor 502, and the pressure sensor 401, the third temperature sensor 303, the fourth temperature sensor 304, the fifth temperature sensor 305, the first flow sensor 501, the second flow sensor 502, and the central controller 8 are connected.
For guaranteeing the heat accumulation, the homogeneity of 23 temperature field distributions of exothermic in-process fused salt aqueous solution, here, inside from the top down of insulation can 2 has set gradually a plurality of be about crisscross distribution state water conservancy diversion division shields 21, be provided with the support frame 22 that is used for supporting fixed water conservancy diversion lateral wall around 21 on the lateral wall around the inside of insulation can 2, under the water conservancy diversion effect of water conservancy diversion shield 21, fused salt aqueous solution 23 is snakelike flow in insulation can 2, then do benefit to the mobility that improves fused salt aqueous solution 23, make high low melting salt aqueous solution 23 carry out the flash mixed.
In order to improve the overall heat preservation effect of the present invention, a heat preservation layer is disposed on the outer side walls of the first pipeline 101, the second pipeline 102, the third pipeline 103, the fourth pipeline 104, the fifth pipeline 105, the sixth pipeline 106, the seventh pipeline 107, the eighth pipeline 108, the ninth pipeline 109, the tenth pipeline 110, the eleventh pipeline 111, the twelfth pipeline 112, the thirteenth pipeline 113, the fourteenth pipeline 114, the fifteenth pipeline 115, the sixteenth pipeline 116, and the seventeenth pipeline 117.
When the heat storage heat source of the fused salt water solution 23 is steam, the utility model discloses a heat storage working process is: firstly, the tractor 1 moves the utility model to the vicinity of a steam heat source; secondly, connecting a twelfth pipeline 112 with a steam inlet pipe, and connecting a thirteenth pipeline 113 with a steam return pipe; in the third step, the first electric control valve 201, the fourth electric control valve 204, the sixteenth electric control valve 216, the third electric control valve 203 and the fourteenth electric control valve 214 are opened, and the remaining electric control valves are in a closed state; fourthly, the circulating water pump 3 is started, the circulating water pump 3 realizes that the molten salt water solution 23 is continuously circularly heated in the steam-water heat exchanger 4, and then the heat storage process of the molten salt water solution 23 is realized, when the first temperature sensor 301 detects that the temperature of the molten salt water solution 23 reaches 150 ℃, the circulating water pump 3 stops working, and then the steam heat storage process is completed; when the heat storage heat source of the fused salt water solution 23 is high-temperature water, the utility model discloses a heat storage work flow does: firstly, the tractor 1 moves the utility model to the vicinity of a steam heat source; secondly, connecting the eighth pipeline 108 with a high-temperature water inlet pipe, and connecting the ninth pipeline 109 with a high-temperature water outlet pipe; third, the second electric control valve 202, the sixteenth electric control valve 216, the seventh electric control valve 207, the eleventh electric control valve 211, the twelfth electric control valve 212, and the eighth electric control valve 208 are opened, and the remaining electric control valves are in a closed state; and fourthly, starting the circulating water pump 3, enabling the circulating water pump 3 to continuously and circularly heat the molten salt water solution 23 in the water-water heat exchanger 4, and further realizing the heat storage process of the molten salt water solution 23, and stopping the circulating water pump 3 when the first temperature sensor 301 detects that the temperature of the molten salt water solution 23 reaches 150 ℃, and further finishing the heat storage process of the high-temperature water.
When the utility model is used for supplying heat, the heat supply mode comprises a water-water heat exchanger heat supply mode and an electric heat pump heat supply mode, and the specific principle of the water-water heat exchanger heat supply mode is as follows: the heat exchange between the molten salt water solution 23 and the low-temperature heating return water is realized by utilizing the water-water heat exchanger 6,
in the utility model, when the water-water heat exchanger is operated in the heat supply mode, the second electric control valve 202, the sixteenth electric control valve 216, the seventh electric control valve 207, the eleventh electric control valve 211, the twelfth electric control valve 212 and the eighth electric control valve 208 are in the open state, the rest electric control valves are in the closed state, the circulating water pump 3 circularly conveys the high-temperature molten salt aqueous solution 23 into the water-water heat exchanger 6, the low-temperature heating return water is continuously heated by the molten salt aqueous solution 23 in the water-water heat exchanger 6, the heated low-temperature heating return water flows to the heating end again, and then the heating end is heated; the specific principle of the heating mode of the electric heating pump is as follows: utilize electric heat pump 5 to realize the heat exchange of fused salt aqueous solution 23 and low temperature heating return water the utility model discloses during operation electric heat pump heat supply mode, its second electric control valve 202, fifth electric control valve 205, sixth electric control valve 206, third electric control valve 203, ninth electric control valve 209 and tenth electric control valve 210 are in the open mode, its remaining electric control valve is in the closed condition, circulating water pump 3 is in high temperature fused salt aqueous solution 23 circulation transport electric heat pump 5, low temperature heating return water is then heated in electric heat pump 5, the low temperature heating return water that is heated flows to the heating end once more, accomplish heating end heat supply then.
The utility model discloses a heat supply control flow does: s1, starting the central controller to enable the heat storage vehicle to enter a heat supply preparation state; s2, comparing the transmission signal T1 of the first temperature sensor 301 with the transmission signal T2 of the second temperature sensor 302 by the central controller, enabling the heat storage vehicle to enter a water-water heat exchanger heat supply mode by the central controller when the temperature T1-T2 is more than or equal to 2 ℃, and enabling the heat storage vehicle to enter an electric heat pump heat supply mode when the temperature T1-T2 is less than 2 ℃;
s2.1, in the continuous heat supply process of the water-water heat exchanger, monitoring the changes of T1 and T2 in real time by the central controller, and stopping the heat supply mode of the water-water heat exchanger of the heat storage vehicle and enabling the heat storage vehicle to enter an electric heat pump heat supply mode when the temperature T1-T2 is less than 2 ℃;
s2.2, in the continuous heat supply process of the electric heating pump, the central controller monitors the change of T1 in real time, when the temperature T1 is larger than or equal to 5 ℃, the electric heating pump continuously supplies heat, and when the temperature T1 is smaller than 5 ℃, the central controller stops the electric heating pump and then stops the heat storage vehicle from supplying heat.
In addition to the technical features described in the specification, the technology is known to those skilled in the art.
The above description is provided for the preferred embodiments and examples of the present invention with reference to the accompanying drawings, but the present invention is not limited to the above embodiments and examples, and it will be apparent to those skilled in the art that various modifications and variations can be made without departing from the spirit of the present invention, and these modifications and variations should be construed as the protection scope of the present invention.
Claims (6)
1. A large-temperature-difference mobile heat storage vehicle comprises a tractor and an insulation can, wherein the insulation can is arranged on a chassis of the tractor, and is characterized by further comprising a circulating water pump, a steam-water heat exchanger, an electric heating pump, a water-water heat exchanger and a central controller, wherein the circulating water pump, the steam-water heat exchanger, the electric heating pump, the water-water heat exchanger and the central controller are all arranged on the chassis of the tractor, a molten salt water solution is filled in the insulation can, a first pipeline communicated with the interior of the insulation can is arranged at the upper part of the insulation can and is connected with a water inlet of the circulating water pump, a second pipeline is arranged at a water outlet of the circulating water pump, a first electric control valve is connected on the second pipeline in series, a fourth pipeline is arranged at a water inlet of the steam-water heat exchanger, the second pipeline is connected with the fourth pipeline and a third pipeline in a parallel mode, a second electric control valve and a third electric control valve are connected in series on the third pipeline, a water outlet of the steam-water heat exchanger is connected with a heat supply fluid inlet of the electric heating pump through a fifth pipeline, a fourth electric control valve and a fifth electric control valve are connected in series on the fifth pipeline, a tenth pipeline communicated with the third pipeline is arranged on the fifth pipeline, the joint of the tenth pipeline and the fifth pipeline is positioned between the fourth electric control valve and the fifth electric control valve, a heat supply fluid outlet of the electric heating pump is connected with the heat supply fluid inlet of the water-water heat exchanger through a sixth pipeline, the sixth electric control valve and a seventh electric control valve are connected in series on the sixth pipeline, and an eleventh pipeline communicated with the third pipeline is arranged on the sixth pipeline, the junction of the eleventh pipeline and the sixth pipeline is positioned between the sixth electric control valve and the seventh electric control valve, the junctions of the tenth pipeline, the eleventh pipeline and the third pipeline are positioned between the second electric control valve and the third electric control valve, the third pipeline is also connected with a sixteenth electric control valve in series, the sixteenth electric control valve is positioned between the junctions of the tenth pipeline, the eleventh pipeline and the third pipeline, a seventh pipeline is arranged at the outlet of the heat supply fluid of the water-water heat exchanger, an eighth electric control valve is connected with the seventh pipeline in series, a sixteenth pipeline communicated with the interior of the heat preservation box is arranged at the lower part of the heat preservation box, the water outlet end of the third pipeline and the water outlet end of the seventh pipeline are connected with the sixteenth pipeline in parallel, the heat absorption fluid inlet of the electric heat pump and the heat absorption fluid inlet of the water-water heat exchanger are connected with an eighth pipeline in parallel, a tenth electric control valve is connected in series with a pipeline of a heat absorption fluid inlet of the electric heat pump, an eleventh electric control valve is connected in series with a pipeline of a heat absorption fluid inlet of the water-water heat exchanger, a heat absorption fluid outlet of the electric heat pump and a heat absorption fluid outlet of the water-water heat exchanger are connected with a ninth pipeline in a parallel mode, a ninth electric control valve is connected in series with a pipeline of a heat absorption fluid outlet of the electric heat pump, a twelfth electric control valve is connected in series with a pipeline of a heat absorption fluid outlet of the water-water heat exchanger, a second temperature sensor is arranged on the eighth pipeline, and a twelfth pipeline and a thirteenth pipeline are respectively arranged on a steam inlet and a steam outlet of the steam-water heat exchanger;
a fourteenth pipeline communicated with the interior of the heat insulation box is arranged at the upper part of the heat insulation box, a thirteenth electric control valve is connected on the fourteenth pipeline in series, a seventeenth pipeline communicated with the interior of the heat insulation box is arranged at the lower part of the heat insulation box, a fifteenth electric control valve is connected on the seventeenth pipeline in series, a first temperature sensor is arranged on the first pipeline, a second temperature sensor is arranged on the eighth pipeline, and a central controller, a circulating water pump, an electric heating pump, a first electric control valve, a second electric control valve, a third electric control valve, a fourth electric control valve, a fifth electric control valve, a sixth electric control valve, a seventh electric control valve, an eighth electric control valve, a ninth electric control valve, a tenth electric control valve, an eleventh electric control valve, a twelfth electric control valve, a thirteenth electric control valve, a fifteenth electric control valve, And the sixteenth electric control valve, the first temperature sensor and the second temperature sensor are electrically connected.
2. The large temperature difference mobile heat storage vehicle according to claim 1, wherein a fifteenth pipeline communicated with the inside of the heat preservation box is arranged at the upper part of the heat preservation box, and a fourteenth electric control valve is connected to the fifteenth pipeline in series and is connected with the central controller.
3. The mobile heat storage vehicle with large temperature difference according to claim 2, wherein a pressure sensor is arranged on the second pipeline, a third temperature sensor and a first flow sensor are arranged on the twelfth pipeline, a fifth temperature sensor is arranged on the thirteenth pipeline, a fourth temperature sensor and a second flow sensor are arranged on the ninth pipeline, and the pressure sensor, the third temperature sensor, the fourth temperature sensor, the fifth temperature sensor, the first flow sensor and the second flow sensor are connected with the central controller.
4. The large temperature difference mobile heat storage vehicle according to claim 3, wherein a plurality of diversion isolation plates are arranged in the heat preservation box from top to bottom in a left-right staggered distribution state, support frames for supporting and fixing the front side wall and the rear side wall of the heat preservation box are arranged on the front side wall and the rear side wall of the heat preservation box, and the molten salt aqueous solution flows in a snake shape in the heat preservation box under the diversion effect of the diversion isolation plates.
5. The large temperature difference mobile heat storage vehicle according to claim 4, wherein the molten salt water solutionIs NaNO3Or KNO3Or K2CO3Or CaCl2Or MgCl2Or NH4A mixture of Cl and water.
6. The large temperature difference mobile heat storage vehicle according to claim 5, wherein heat insulation layers are arranged on outer side walls of the first pipeline, the second pipeline, the third pipeline, the fourth pipeline, the fifth pipeline, the sixth pipeline, the seventh pipeline, the eighth pipeline, the ninth pipeline, the tenth pipeline, the eleventh pipeline, the twelfth pipeline, the thirteenth pipeline, the fourteenth pipeline, the fifteenth pipeline, the sixteenth pipeline and the seventeenth pipeline.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110425630A (en) * | 2019-08-07 | 2019-11-08 | 临沂智慧新能源科技有限公司 | A kind of mobile accumulation of heat vehicle of the big temperature difference and its supply control method for heat |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110425630A (en) * | 2019-08-07 | 2019-11-08 | 临沂智慧新能源科技有限公司 | A kind of mobile accumulation of heat vehicle of the big temperature difference and its supply control method for heat |
| CN110425630B (en) * | 2019-08-07 | 2021-06-01 | 临沂智慧新能源科技有限公司 | Large-temperature-difference mobile heat storage vehicle and heat supply control method thereof |
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