CN212838196U - Facility equipment for secondary heating and temperature rising by utilizing geothermal produced energy - Google Patents
Facility equipment for secondary heating and temperature rising by utilizing geothermal produced energy Download PDFInfo
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- CN212838196U CN212838196U CN202020783897.0U CN202020783897U CN212838196U CN 212838196 U CN212838196 U CN 212838196U CN 202020783897 U CN202020783897 U CN 202020783897U CN 212838196 U CN212838196 U CN 212838196U
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 90
- 230000000630 rising effect Effects 0.000 title claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 70
- 230000005611 electricity Effects 0.000 claims abstract description 5
- 238000004519 manufacturing process Methods 0.000 claims description 17
- 238000005485 electric heating Methods 0.000 claims description 15
- 239000002918 waste heat Substances 0.000 claims description 10
- 150000003839 salts Chemical class 0.000 claims description 9
- 238000010792 warming Methods 0.000 claims description 9
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical group [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 6
- 238000011084 recovery Methods 0.000 claims description 6
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 claims description 3
- 239000001110 calcium chloride Substances 0.000 claims description 3
- 229910001628 calcium chloride Inorganic materials 0.000 claims description 3
- 239000000969 carrier Substances 0.000 claims description 3
- 239000011780 sodium chloride Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 15
- 230000008569 process Effects 0.000 abstract description 8
- 238000000926 separation method Methods 0.000 abstract description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 4
- 229910052799 carbon Inorganic materials 0.000 abstract description 4
- 239000012530 fluid Substances 0.000 abstract description 2
- 230000008859 change Effects 0.000 description 8
- 230000006872 improvement Effects 0.000 description 8
- 239000013589 supplement Substances 0.000 description 6
- 230000001105 regulatory effect Effects 0.000 description 5
- 229920006395 saturated elastomer Polymers 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000000605 extraction Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 238000009835 boiling Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003631 expected effect Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000012943 hotmelt Substances 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/10—Geothermal energy
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Abstract
The utility model discloses an utilize geothermol power output energy to carry out facility equipment that secondary heating heaies up, include the geothermol power water carrier that carries out the input steam-water separation the catch water, carry out the generating set that generates electricity, carry out the secondary heating device that the secondary heating heaies up with the steam after the separation with the low temperature hot water after the separation, the required electric power of secondary heating device work is supplied with by generating set. The utility model discloses carry out the secondary heating to heat supply pipeline heat-carrying fluid medium and heat up, do not need any external energy to supply alright satisfy with the user demand of heat industry to different hot temperatures and with the heat type. External energy sources do not need to be consumed in the operation process, no carbon is discharged, and the utilization efficiency of geothermal resources can be greatly improved.
Description
Technical Field
The utility model relates to a development is synthesized with utilization field to geothermal energy, concretely relates to utilize geothermal output energy to carry out facility equipment that secondary heating heaied up.
Background
In the heating system in the current field of comprehensive development and utilization of geothermal energy, the conventional heating application adopts a temperature decreasing mode. When the use temperature is higher than the heating temperature, the solution is not considered by utilizing the energy contained in the heat supply device, and the heat supply device is probably limited by the technology, equipment and the like. A few solutions still rely on the traditional method, and the supplement of external energy is utilized and corresponding equipment is additionally needed to be added for assistance. For example, underground air source heat pumps, water source heat pumps and the like cannot get rid of dependence on external energy sources. Geothermal resources only play a role in saving energy in the field, cannot use renewable clean energy such as geothermal energy independently by 100 percent, and further cannot realize a development mode of pushing comprehensive development and utilization of geothermal energy to distributed off-grid supply. Most of the researchers who research the development and utilization of geothermal energy are to find solutions from the development of deeper geothermal resources or higher-temperature hot dry rock reservoirs, so that the development and utilization cost of geothermal energy is too high, the technical difficulty is greater, and the development speed of the industry is restricted.
SUMMERY OF THE UTILITY MODEL
The utility model provides an utilize geothermal output energy to carry out the facility equipment that secondary heating heaied up carries out the secondary heating to heat supply pipeline heat-carrying fluid medium and heaies up, does not need any external energy to supply alright satisfy the user demand of using the heat production industry to different hot temperatures and with the heat type. External energy sources do not need to be consumed in the operation process, no carbon is discharged, and the utilization efficiency of geothermal resources can be greatly improved.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a facility for secondary heating and temperature rise by utilizing geothermal produced energy comprises a steam-water separator for separating steam from water of an input geothermal water carrier, a generator set for generating power by using separated low-temperature hot water, and a secondary temperature rise device for secondarily heating and temperature rise of separated steam, wherein electric power required by the operation of the secondary temperature rise device is supplied by the generator set.
As an improvement to the above technical solution, the secondary temperature raising device comprises a supercritical flash tank for performing secondary temperature raising on high-temperature steam or a heat medium oil exchanger for performing secondary temperature raising on medium-temperature steam;
the supercritical flash tank is connected to a high-temperature steam output pipe at the top of the steam-water separator; the supercritical flash tank comprises a hollow tank body, a tank body central core arranged at the top of an inner cavity of the tank body and a flash evaporator arranged at the top of the tank body central core; the flash evaporator is internally provided with an electric heating wire and hot molten salt filled around the electric heating wire, and a high-temperature steam inlet is arranged below the flash evaporator and is an outlet of the high-temperature saving output pipe; the top end of the tank body is provided with an output port for flash steam;
the heat medium oil exchanger is connected to a medium-temperature steam output pipe at the upper part of the steam-water separator; the heat medium oil exchanger comprises a shell, a heat exchange assembly arranged in the shell, a heating wire arranged in the shell and positioned at the front end of the heat exchange assembly, a heat medium oil circulating inlet arranged at one end of the shell and used for enabling heat medium oil entering the shell to flow through the heating wire and then flow through the heat medium oil circulating inlet of the heat exchange assembly, and a heat medium oil circulating outlet arranged at the other end of the shell and used for enabling the heat medium oil flowing through the heat exchange assembly to flow out in a circulating manner, wherein the heat exchange assembly is provided with an input port used for enabling medium temperature steam;
and the electric power of the heating wire and the heating wire is supplied by a generator set.
As an improvement to the technical scheme, the high-temperature steam output pipe and the medium-temperature steam output pipe are respectively provided with a booster pump and a one-way valve.
As an improvement to the above technical solution, the generator set includes a first generator set disposed at the bottom of the steam-water separator and used for indirectly heating the hot water separated by the steam-water separator to generate electricity, and a second generator set disposed at the outlet of the lower end of the steam-water separator and used for directly heating the hot water to generate electricity; the first generator set and the second generator set are connected in parallel and then connected with the electric control cabinet, and the outlet wires of the electric control cabinet are respectively connected with the heating wire of the supercritical flash tank and the heating wire of the heating medium oil exchanger to provide working power for the heating wire and the heating wire.
As an improvement to the above technical scheme, the second generator set is connected with a waste heat recovery device.
As an improvement to the above technical scheme, the first generator set is a single-working-medium generator or a double-working-medium generator, and the second generator set is a turbine generator or a single-flash generator or a double-flash generator.
As an improvement to the above technical scheme, the hot molten salt is sodium chloride or calcium chloride.
As an improvement of the technical scheme, the supercritical flash tank is a three-dimensional tank body, a blowdown valve is arranged at the center of the bottom of the tank body, tank body supporting legs are arranged around the bottom of the tank body to support the tank body, a top cover is arranged at the top end of the tank body, and the top cover is provided with an electric heating joint and is connected with an electric heating wire in the flash evaporator.
As an improvement of the technical scheme, the heat medium oil exchanger is horizontal, the heat exchange assembly comprises a heat exchange tube left end plate, a heat exchange tube right end plate, an upper baffle plate and a lower baffle plate which are arranged on the inner sides of the heat exchange tube left end plate and the heat exchange tube right end plate and are arranged in a vertically staggered manner, and a plurality of heat exchange tubes arranged between the heat exchange tube left end plates and the heat exchange tube right end plates, and the heat exchange assembly is arranged in the middle of the shell through the heat exchange tube left end plate; the heating wire is arranged in an inner cavity of one end of the shell, an electric heater end cover is arranged at the outer end of the shell, an electric heating wire is arranged outside the electric heater end cover and connected with the heating wire in the inner cavity of the shell, and an end cover is arranged at the other end of the shell.
The utility model discloses a working method is:
the method comprises the following steps that (1) hot water or steam with the temperature of not less than 60 ℃ produced from the underground by a production well is subjected to slag removal and steam-water separation through a vertical tank body of a steam-water separator, and then the bottom of the steam-water separator is indirectly heated and connected with a first generator set in a heat exchange medium mode, so that single-working-medium and double-working-medium generators can be selected and converted into electric power; an outlet at the lower end of the steam-water separator is directly connected with a second generator set in a heat exchange manner, and a turbine, a single-flash generator and a double-flash generator can be selected and converted into electric power for recovering and outputting waste heat; the high-temperature steam of 350-; the medium temperature steam of 120-.
When the facility equipment of the invention is applied to carry out secondary heating temperature rise regulation and control on hot water steam, special attention needs to be paid to selecting corresponding steam temperature and pressure. The steam temperature and pressure profile is divided into two sections: fig. 4A is a graph showing the change of temperature and pressure of conventional steam, and fig. 4B is a graph showing the change of temperature and pressure of supercritical steam. The pressure parameters shown in FIG. 4A, B refer to the operating pressure within the tank cavityAbsolute pressure value. The unit of the temperature coordinate, i.e., the ordinate parameter value, shown in fig. 4A and 4B is Mpa, and the unit of the pressure coordinate, i.e., the abscissa pressure parameter value, is Mpa. When the temperature sensor is applied, the temperature value can be found out in the vertical coordinate direction according to the use temperature requirement, the corresponding horizontal coordinate point is found out at the intersection of the horizontal direction extension and the curve, and the absolute pressure parameter value Mpa is needed. However, the formula for selecting the operating pressure parameter of the booster pump is:
the pressure parameter P of the booster pump is equal to the working pressure P1 in the tank body and the inlet pressure P2 of the heated steam
According to the formula, the working pressure of the booster pump is selected as the difference between the working pressure in the tank body and the pressure of the heated steam
Compared with the prior art, the utility model has the advantages and positive effect be:
the utility model discloses a facility equipment for secondary heating and temperature rising by utilizing geothermal output energy, hot water steam produced from an underground production well 201 is accessed from an input port, and is processed by three different output ports, wherein two of the three output ports are steam output ports after secondary temperature rising; and one is an output port for recovering the residual heat after power generation. The utility model discloses a facility equipment is applicable to not less than 60 ℃ or steam of the hot water temperature of production well 201 output in the pit, if production well 201 extraction heat energy temperature is higher, then the work efficiency of the system equipment of the invention also can be better. In the field of comprehensive development and utilization of geothermal energy, the method mainly aims at exploiting the 2000-9000 meters geothermal energy in the middle-deep layer. According to the abundance of geothermal resources in different areas, the temperature range of the heat energy extracted by the production well is different from 60 to 420 ℃, and the economical heat extraction temperature is usually 60 to 240 ℃.
Hot water steam extracted from the production well 201 is not less than 60 ℃, and 2 different high-temperature steam outputs and 1 waste heat recovery output can be respectively output after the hot water steam is processed by the system equipment; or any 1 high temperature output and 1 waste heat recovery output. The working output temperature range of the 2 high-temperature output ports is respectively as follows: 350 ℃ and 700 ℃; 120-350 ℃ III; the temperature range of the waste heat output is as follows: IV at 40-60 ℃. The method does not need any external energy supplement in the normal working and running process, does not have carbon emission, and realizes the distributed off-grid running mode of renewable clean energy.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a working principle diagram of a supercritical flash tank;
FIG. 3 is a schematic diagram of the operation of the heat transfer oil exchanger;
FIG. 3A is a schematic diagram showing the overall structure of a heat medium oil exchanger;
FIG. 3B is a schematic structural view of a heat exchange tube assembly;
FIG. 3C is a schematic view of the upper baffle;
FIG. 3D is a schematic view of the structure of the lower baffle;
FIG. 4A is a graph showing the temperature versus pressure of conventional steam;
fig. 4B is a graph of supercritical steam temperature versus pressure.
Detailed Description
In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.
Therefore, the following detailed description of the embodiments of the present invention, which is provided in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention, and all other embodiments that can be obtained by one of ordinary skill in the art without any creative effort based on the embodiments of the present invention belong to the scope of the invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
The terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; the two elements may be directly connected or indirectly connected through an intermediate medium, and the two elements may be connected through an intermediate medium.
As shown in fig. 1, the utility model discloses an utilize geothermal output energy to carry out its work operation mode of facility equipment that secondary heating heaied up is: after the slag removal and steam-water separation of hot water or steam with the temperature of not less than 60 ℃ generated from the underground by a water carrier produced by the production well 201 are carried out through the vertical tank body of the steam-water separator 202, the first generator set 211 can be indirectly heated and connected in a heat exchange medium mode at the bottom of the steam-water separator 202 and can be converted into electric power by a single-working-medium generator or a double-working-medium generator; the outlet at the lower end of the steam-water separator 202 is directly connected with a second generator set 210 through heat exchange, a turbine, a single-flash generator and a double-flash generator can be used for converting the power into electric power, and waste heat is recovered and output through an IV; the high-temperature steam of 350-; the medium temperature steam 120-350 ℃ III is output 215 by a medium temperature steam output pipe at the upper end of the steam-water separator, passes through a booster pump and a one-way valve 206, is connected into a heat transfer oil exchanger 209, and is used for increasing the temperature of hot water or steam which is not less than 60 ℃ to any temperature required in the temperature range of 120-350 ℃ and outputting the temperature to the heat industry through a control valve 214.
For safety, a safety channel 203 can be installed on the top of the steam-water separator 202, a safety valve is arranged on the safety channel 203 to provide safety for the steam-water separator 202, and reference numeral 106 in fig. 2 is a tank body of the steam-water separator.
Working principle of the supercritical flash tank 207: as shown in fig. 2, is a sectional elevation structural view of the supercritical flash tank. The components are as follows: the heating wire 103 and the hot melt salt 104 are arranged in the flash evaporator 109 at the top of the core in the tank body and can be selected from the melting temperature of 801-; the interface 110 is an input port of heated water vapor, the interface 111 is an output port after heating, the electric heating joint 101 is connected with the heating wire 103, the interface 105 is used for connecting instruments, the top cover 102 is used for fixing the flash evaporator, the interface 107 is used for connecting a blowdown valve, and the tank body supporting legs 108 are used for supporting and fixing the tank body. In normal operation, as shown in fig. 1, the electric wires are connected with the electric control cabinet 212 through the electric wires to heat the electric heating wires 103 to melt the salt by using the electric power generated by the second generator set 210 and the first generator set 211 in the system. The pressurized hot water or steam enters the tank body through an A1 port at the temperature of 60-200 ℃ and is sprayed to the flash evaporator 109 in a spraying mode. The operating temperature range of the flash evaporator 109 is: when the 810-1465 ℃ fused salt is sodium chloride or 780-1350 ℃ fused salt is calcium chloride, the temperature region has supercritical temperature for water, and water carriers enter the tank body and can be instantly vaporized into high-temperature steam or supercritical steam. According to the demand of the high-temperature steam industry, the output temperature and the pressure of the steam subjected to supercritical temperature rise in the tank body can be regulated and controlled by adjusting the output pressure of the booster pump 205. The supercritical flash tank 207 adopts a thermal supercritical heating device in the heating principle, can directly provide steam output in a supercritical state, and can also be used for providing conventional steam output pressure of 140-.
The working principle of the heat medium oil exchanger 209 is as follows: as shown in fig. 3, the heat medium oil exchanger 209 is a sectional elevation view. Fig. 3A is an external view of the heat medium oil exchanger 209. The heat medium oil exchanger 209 is in the form of a horizontal tank and comprises the following main components: the device comprises an electric heating wire 1, an electric heater end cover 2, an electric heating wire 3, an end cover 5, a heat exchange tube left end plate 5, a heat exchange tube right end plate 6, an upper baffle plate 7 (shown in figure 3C), a lower baffle plate 8 (shown in figure 3D), a heat exchange tube 9, an exchanger shell 10, a hot medium oil circulation outlet 11, a heated hot water steam inlet 12, a heated hot water steam outlet 13, a heated hot water steam outlet 14 and a heat exchange tube assembly 15 (shown in figure 3B). The heat transfer oil heat exchanger 209 operates on the principle of electrically heating the heat transfer oil as a heat source, and uses power generated by the power generation equipment of the system of the present invention. When the secondarily heated hot water vapor enters the section B of the hot oil heat exchanger through the heated hot water vapor input port 12 (as shown in fig. 3). The hot water vapor comes into contact with the outer surface of the heat exchange tube 9 to obtain exchange heat energy. The heat exchange tube 9 is formed by an independent circulation flow loop (as shown in fig. 1) of heat transfer oil or heat transfer oil heat carrier, and is connected with an internal circulation pump 208 through a pipeline. The heating wire 3 directly heats the circulating heat medium oil and is arranged in the A-section cavity of the heat medium oil heat exchanger. The heat transfer oil can be different types according to the working temperature requirement interval, and the boiling point of the heat transfer oil is generally 230-450 ℃ which is sold in petrochemical product markets. In the system equipment, the self-generated power is connected through an electric lead, a control cabinet and a heating wire 3, the heating wire heats heat-conducting oil in the cavity of the section A of the heat-conducting oil heat exchanger, and then the heat-conducting oil returns to an inlet 14 after being connected with an internal circulating pump 208 through a pipeline of a heat-conducting oil circulating outlet 11 to form closed-loop continuous flow heated by the heat-conducting oil. The hot water steam to be heated is input from a heated hot water steam input port 12, heated in the cavity B section and then output from a heated hot water steam output port 13. Thereby completing the whole process of providing the medium temperature steam of 120 ℃ and 350 ℃ III. According to the requirement of the output steam temperature value, the steam temperature and the steam pressure of the output steam output end III can be regulated and controlled by regulating the output pressure of the booster pump 205.
When the device is applied to carry out secondary heating temperature rise regulation and control on hot water steam, special attention needs to be paid to: the corresponding steam temperature and pressure are selected. The steam temperature and pressure profile is divided into two sections: fig. 4A is a graph showing the change of temperature and pressure of conventional steam, and fig. 4B is a graph showing the change of temperature and pressure of supercritical steam. The pressure parameter shown in fig. 4A, B refers to the absolute value of the operating pressure within the tank cavity. The unit of the temperature coordinate, i.e., the ordinate parameter value, shown in fig. 4A and 4B is Mpa, and the unit of the pressure coordinate, i.e., the abscissa pressure parameter value, is Mpa. When the temperature sensor is applied, the temperature value can be found out in the vertical coordinate direction according to the use temperature requirement, the corresponding horizontal coordinate point is found out at the intersection of the horizontal direction extension and the curve, and the absolute pressure parameter value Mpa is needed. However, the formula for selecting the operating pressure parameter of the booster pump is:
the pressure parameter P of the booster pump is equal to the working pressure P1 in the tank body and the inlet pressure P2 of the heated steam
As can be seen from the formula, the working pressure of the booster pump is selected such that the difference between the working pressure in the tank and the pressure of the heated steam is a relative pressure, which is particularly noticeable.
Through the above description of the working principle, the key devices and components of the present invention, it can be summarized that the "facility equipment for secondary heating and warming by using geothermal heat production energy" disclosed by the present invention has the following technical effects: firstly, the facility equipment can complete secondary heating and heating of hot water steam with input temperature of not less than 60 ℃ without external energy supplement. Second, the system apparatus of the present invention can simultaneously apply either or both of the heating modes to heat the hot water vapor. The output temperature after heating can be selected to obtain the steam required for secondary heating and temperature rise within the range of 120-700 ℃. Thirdly, the technical principle and key equipment thereof, namely the supercritical flash tank 207 and the heat transfer oil heat exchanger 209, can provide steam for large-scale industrial production. In the working process, although the temperature of a molten salt heating body in the supercritical flash tank 207 can reach 1600 ℃ and the temperature of a heating medium oil working cavity of the heating medium oil heat exchanger 209 can reach 480 ℃, by applying the secondary heating temperature rise equipment disclosed by the invention, the heating body is not heated by open fire, the heating body is in a normal-pressure working state and has no high pressure, the heat exchange efficiency is as high as 95-99%, and the operation is stable. Fourthly, in practical applications, the thermal industry may find the corresponding pressure parameter Mpa according to the relationship curve between temperature and pressure shown in fig. 4B for the specific value of the required working required temperature, and then adjust the working output pressure of the booster pump 205 and the check valve 206 to obtain the corresponding working output temperature. The temperature and pressure change curve parameter models related to different temperature intervals are embedded into the CPU of the control system of the facility equipment, and the operation of operation control and adjustment can be automatically completed. Fifthly, the heating principle of the supercritical flash tank 207 is that a thermal supercritical flash heating device is adopted, which can directly provide steam in a supercritical state and also can output 140-350 ℃ saturated steam for use in heat utilization industry.
The key points and points to be protected of the invention are:
1. the invention discloses a set of facility equipment for secondarily heating a heat supply pipeline by utilizing geothermal self energy, which aims at the field of comprehensive development and utilization of geothermal energy and can meet the use requirements of the heat utilization industry on different heat temperatures and heat utilization types without any external energy supplement. The produced hot water steam is not less than 60 ℃, and 2 different high-temperature steam outputs and 1 waste heat recovery output can be respectively output after being processed by the system equipment; or any 1 high temperature output and 1 waste heat recovery output. The working output temperature range of the 2 high-temperature output ports is respectively as follows: 350 ℃ and 700 ℃; 120-350 ℃ III; the temperature range of the waste heat output is as follows: IV at 40-60 ℃. The method does not need any external energy supplement in the normal working and running process, does not have carbon emission, and realizes the distributed off-grid running mode of renewable clean energy.
2. The structure and the working principle of the supercritical heat superconducting flash tank disclosed by the invention can provide different high-temperature steam, even supercritical saturated steam, for heat utilization industry after the underground hot water or steam is heated by 60-200 ℃ through temperature rise. The working temperature range of the flash evaporator 109 is 810-. The different medium working temperature regions all belong to supercritical temperature for water, and water carriers enter the tank body and can be instantly vaporized into high-temperature steam or supercritical steam. According to the use requirement of the high-temperature steam industry end, the output temperature and the pressure of the steam subjected to supercritical temperature rise in the tank body can be regulated and controlled by adjusting the output pressure of the booster pump 205. The supercritical flash tank 207 adopts a thermal supercritical heating device in the heating principle, can directly provide steam output in a supercritical state, and can also be used for providing conventional steam output pressure of 140-.
3. The working principle of the heat medium oil heat exchanger 209 disclosed by the invention is to provide a heat source by adopting an electric heating heat medium oil mode, and the heating power source is generated from the self-generating power of the system disclosed by the invention. The principle has the advantages that the internal circulation system of the heat medium oil can keep the temperature of the heat exchange pipe uniform, the heat exchange efficiency is high, the working internal pressure is not generated at the temperature of 230-450 ℃ under the normal working temperature, and the operation is safe and reliable. The whole process of the operation of outputting the steam temperature value of 120-350 ℃ III is carried out. According to the use requirement of the high-temperature steam industry end, the output temperature and the pressure of the steam subjected to supercritical temperature rise in the tank body can be regulated and controlled by adjusting the output pressure of the booster pump 208.
According to the steam temperature and pressure change curves shown in fig. 4A and 4B, the system equipment of the invention can accurately output the required working steam temperature and pressure after being heated by secondary heating according to the set requirements. The temperature and pressure change curve parameter models related to different temperature intervals are embedded into the CPU of the control system of the facility equipment, and the operation of operation control and adjustment can be automatically completed. According to the working parameter selection formula of the booster pump, which is described by the invention:
the pressure parameter P of the booster pump is equal to the working pressure P1 in the tank body and the inlet pressure P2 of the heated steam
The proper working parameters of the booster pump can be selected according to the heat utilization parameters commonly used in the industry and the temperature and pressure conditions of underground geothermal extraction.
4. The invention discloses a secondary heating system facility and equipment for producing hot water or steam in the comprehensive application of heat energy, which can achieve the expected effect under the condition that local key equipment such as a supercritical flash tank 207, a heat transfer medium oil heat exchanger 209 and the like in the working process and key parameters, namely the change curves of temperature and pressure under two different temperature zone states disclosed by the invention, all need a complete formula with the same system by utilizing the working principle of the heat energy of the secondary heating system facility and equipment.
Wherein the terms applied in the present application are explained as follows:
1. "distributed off-grid provisioning": the energy supply mode is an energy operation mode which can independently operate without depending on a traditional public power grid or a traditional heat supply pipe network and does not need external energy supplement in the field of energy supply.
2. "supercritical flash heating technology": the method is a technical means for working the temperature of a heat source heating body in a supercritical temperature region of a heated medium. When the heated medium is close to the heating body, it is vaporized instantaneously by large temperature difference and is changed from liquid or corpuscle solid state to gas state directly before contacting the heating body.
3. "supercritical saturated steam": the steam state of the water vapor in an environment of 22.1-25.4MPA and the temperature of 374 ═ 566 ℃, is called as: supercritical saturated steam.
4. The absolute pressure value refers to a pressure value relative to a pressure value in a vacuum state, and the pressure values displayed by a pressure instrument and meter search are all absolute pressures, so that unified data can be conveniently acquired for control.
Claims (9)
1. The utility model provides an utilize geothermal output energy to carry out facility equipment that secondary heating heaies up which characterized in that: the system comprises a steam-water separator for separating steam and water from input geothermal water carriers, a generator set for generating power from separated low-temperature hot water, and a secondary temperature rising device for secondarily heating and rising temperature of separated steam, wherein the power required by the operation of the secondary temperature rising device is supplied by the generator set.
2. The facility equipment for secondary heating and warming using geothermal heat production energy according to claim 1, wherein: the secondary heating device comprises a supercritical flash tank for carrying out secondary heating on high-temperature steam or a heat medium oil exchanger for carrying out secondary heating on medium-temperature steam;
the supercritical flash tank is connected to a high-temperature steam output pipe at the top of the steam-water separator; the supercritical flash tank comprises a hollow tank body, a tank body central core arranged at the top of an inner cavity of the tank body and a flash evaporator arranged at the top of the tank body central core; the flash evaporator is internally provided with an electric heating wire and hot molten salt filled around the electric heating wire, and a high-temperature steam inlet is arranged below the flash evaporator and is an outlet of the high-temperature saving output pipe; the top end of the tank body is provided with an output port for flash steam;
the heat medium oil exchanger is connected to a medium-temperature steam output pipe at the upper part of the steam-water separator; the heat medium oil exchanger comprises a shell, a heat exchange assembly arranged in the shell, a heating wire arranged in the shell and positioned at the front end of the heat exchange assembly, a heat medium oil circulating inlet arranged at one end of the shell and used for enabling heat medium oil entering the shell to flow through the heating wire and then flow through the heat medium oil circulating inlet of the heat exchange assembly, and a heat medium oil circulating outlet arranged at the other end of the shell and used for enabling the heat medium oil flowing through the heat exchange assembly to flow out in a circulating manner, wherein the heat exchange assembly is provided with an input port used for enabling medium temperature steam;
and the electric power of the heating wire and the heating wire is supplied by a generator set.
3. The facility equipment for secondary heating and warming using geothermal heat production energy according to claim 2, wherein: and the high-temperature steam output pipe and the medium-temperature steam output pipe are respectively provided with a booster pump and a one-way valve.
4. The facility equipment for secondary heating and warming using geothermal heat production energy according to claim 2, wherein: the generator set comprises a first generator set and a second generator set, wherein the first generator set is arranged at the bottom of the steam-water separator and indirectly heats hot water separated by the steam-water separator to generate electricity, and the second generator set is arranged at an outlet at the lower end of the steam-water separator and directly heats hot water to generate electricity; the first generator set and the second generator set are connected in parallel and then connected with the electric control cabinet, and the outlet wires of the electric control cabinet are respectively connected with the heating wire of the supercritical flash tank and the heating wire of the heating medium oil exchanger to provide working power for the heating wire and the heating wire.
5. The facility equipment for secondary heating and warming using geothermal heat production energy according to claim 4, wherein: the second generator set is connected with a waste heat recovery device.
6. The facility equipment for secondary heating and warming using geothermal heat production energy according to claim 4, wherein: the first generator set is a single-working-medium generator or a double-working-medium generator, and the second generator set is a turbine generator or a single-flash generator or a double-flash generator.
7. The facility equipment for secondary heating and warming using geothermal heat production energy according to claim 2, wherein: the hot molten salt is sodium chloride or calcium chloride.
8. The facility equipment for secondary heating and warming using geothermal heat production energy according to claim 2, wherein: the supercritical flash tank is a three-dimensional tank body, a blowdown valve is arranged at the center of the bottom of the tank body, tank body supporting legs are arranged around the bottom of the tank body to support the tank body, a top cover is arranged at the top end of the tank body, and the top cover is provided with an electric heating joint and is connected with an electric heating wire in the flash evaporator.
9. The facility equipment for secondary heating and warming using geothermal heat production energy according to claim 2, wherein: the heat exchange assembly comprises a heat exchange tube left end plate, a heat exchange tube right end plate, an upper baffle plate and a lower baffle plate which are arranged on the inner sides of the heat exchange tube left end plate and the heat exchange tube right end plate and are arranged in a vertically staggered manner, and a plurality of heat exchange tubes erected between the heat exchange tube left end plate and the heat exchange tube right end plate, and the heat exchange assembly is arranged in the middle of the shell through the heat exchange tube left end plate and the heat exchange tube right end plate; the heating wire is arranged in an inner cavity of one end of the shell, an electric heater end cover is arranged at the outer end of the shell, an electric heating wire is arranged outside the electric heater end cover and connected with the heating wire in the inner cavity of the shell, and an end cover is arranged at the other end of the shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202020783897.0U CN212838196U (en) | 2020-05-13 | 2020-05-13 | Facility equipment for secondary heating and temperature rising by utilizing geothermal produced energy |
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| CN202020783897.0U CN212838196U (en) | 2020-05-13 | 2020-05-13 | Facility equipment for secondary heating and temperature rising by utilizing geothermal produced energy |
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| CN212838196U true CN212838196U (en) | 2021-03-30 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111734592A (en) * | 2020-05-13 | 2020-10-02 | 北京王川景观设计有限公司 | Facility equipment for secondary heating and temperature rising by utilizing geothermal produced energy |
| CN111734592B (en) * | 2020-05-13 | 2024-05-31 | 北京华盛国兴新能源科技有限公司 | Facility equipment for carrying out secondary heating temperature rise by utilizing geothermal energy production energy |
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2020
- 2020-05-13 CN CN202020783897.0U patent/CN212838196U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111734592A (en) * | 2020-05-13 | 2020-10-02 | 北京王川景观设计有限公司 | Facility equipment for secondary heating and temperature rising by utilizing geothermal produced energy |
| CN111734592B (en) * | 2020-05-13 | 2024-05-31 | 北京华盛国兴新能源科技有限公司 | Facility equipment for carrying out secondary heating temperature rise by utilizing geothermal energy production energy |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20211217 Address after: 101599 room 223-2362, government office building, 142 Huasheng Road, Beizhuang village, Beizhuang Town, Miyun District, Beijing (centralized office area of Beizhuang town) Patentee after: Beijing Huasheng Guoxing Technology Group Co.,Ltd. Address before: 101599 4th floor, 172 Chezhan Road, Miyun District, Beijing Patentee before: Beijing Wangchuan Landscape Design Co.,Ltd. |
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Granted publication date: 20210330 |