CN211734376U - Solar energy marsh gas engineering heating system - Google Patents
Solar energy marsh gas engineering heating system Download PDFInfo
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- CN211734376U CN211734376U CN202020097809.1U CN202020097809U CN211734376U CN 211734376 U CN211734376 U CN 211734376U CN 202020097809 U CN202020097809 U CN 202020097809U CN 211734376 U CN211734376 U CN 211734376U
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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
- Y02E10/40—Solar thermal energy, e.g. solar towers
- Y02E10/44—Heat exchange systems
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Abstract
The utility model discloses a heating system for solar biogas engineering, which comprises a solar heat collector, a heat exchanger and a heat dissipation tube panel arranged in a biogas tank body; a first working medium circulation pipeline is connected between the first side of the heat exchanger and the solar heat collector, a second working medium circulation pipeline is connected between the second side of the heat exchanger and the heat dissipation tube panel, and the first side and the second side of the heat exchanger are isolated; and heat conducting oil for exchanging heat with a second working medium circulating on the second side of the heat exchanger is communicated with the solar heat collector and the first working medium circulating pipeline. The utility model provides a solar energy marsh gas engineering heating system can heat the marsh gas engineering, maintains its fermentation temperature, has practiced thrift simultaneously and has arranged the space, reduction equipment cost.
Description
Technical Field
The utility model relates to a renewable energy technical field, in particular to solar energy marsh gas engineering heating system.
Background
The biogas is a combustible gas produced by various organic substances through the fermentation of microorganisms under the conditions of air isolation and proper temperature and pH value. Biogas is a secondary energy source and is a renewable energy source, and its production mainly depends on the fermentation action of microorganisms, thus requiring an appropriate fermentation temperature. In cold regions, the factor limiting the normal operation of biogas projects is primarily temperature. In the actual operation process of the biogas engineering, most commercial energy is adopted for heating, the energy consumption is large, the economic performance is poor, a small part of the biogas engineering is heated by utilizing solar energy and water medium, the heating efficiency is low, the solar energy laying area is large, the occupied area is large, the cost is high, and the purpose of practical application cannot be achieved.
Therefore, how to maintain the fermentation temperature of the biogas engineering in cold regions becomes a technical problem to be solved by the technical personnel in the field.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a solar energy marsh gas engineering heating system can heat the marsh gas engineering, maintains its fermentation temperature, has practiced thrift heating system's the space of arranging simultaneously, reduces equipment cost.
In order to achieve the purpose, the utility model provides a heating system for solar biogas engineering, which comprises a solar heat collector, a heat exchanger and a heat radiation tube panel arranged in a biogas tank body;
a first working medium circulation pipeline is connected between the first side of the heat exchanger and the solar heat collector, a second working medium circulation pipeline is connected between the second side of the heat exchanger and the heat dissipation tube panel, and the first side and the second side of the heat exchanger are isolated;
and heat conducting oil for exchanging heat with a second working medium circulating on the second side of the heat exchanger is communicated with the solar heat collector and the first working medium circulating pipeline.
Optionally, the first working medium circulation pipeline comprises a heat conduction oil outlet pipe, a heat conduction oil inlet pipe and a first circulation pump connected to the heat conduction oil outlet pipe or the heat conduction oil inlet pipe;
the second working medium is circulating water, and the second working medium circulating pipeline comprises a circulating water outlet pipe, a circulating water inlet pipe and a second circulating pump connected to the circulating water outlet pipe or the circulating water inlet pipe.
Optionally, a circulation water tank communicated with the second working medium circulation pipeline is further arranged between the heat exchanger and the heat dissipation tube panel.
Optionally, the heat dissipation tube panel is a spiral tube panel.
Optionally, a bypass circulation pipe, a bypass heater and a third circulation pump disposed on the bypass circulation pipe are connected to the circulation water tank.
Optionally, the bypass heater is a biogas boiler heated by applying biogas combustion.
Optionally, a temperature sensor is arranged in the circulating water tank, and the temperature sensor is connected with a control mechanism for controlling the third circulating pump and the bypass heater to start and operate when the temperature of the circulating water is lower than a preset value.
Optionally, the thermal oil is an alkyl naphthalene type thermal oil or an alkyl biphenyl type thermal oil.
Compared with the prior art, the utility model provides a solar energy marsh gas engineering heating system carries out the thermal-arrest through solar collector, stores the heat in the conduction oil, then carries out the heat transfer with the second working medium of conduction oil in through first working medium circulation pipeline and heat exchanger and second working medium circulation pipeline, then utilizes the second working medium to carry and spills heat in the heat dissipation tube screen and maintain marsh gas fermentation temperature, heats for utilizing traditional commodity energy, has practiced thrift the heating cost. And utilize the heat exchanger to keep apart first working medium and second working medium, first working medium adopts the conduction oil to carry out the energy storage, and the conduction oil has very high boiling point, can store a large amount of heats, has practiced thrift the solar collector arrange quantity and, has reduced equipment arrangement cost. And the heat conduction oil and the second working medium (usually circulating water) form higher temperature difference, which is beneficial to quick heat exchange and meets the requirement of biogas engineering on fermentation temperature.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic view of a heating system of a solar biogas engineering provided in a first embodiment of the present invention;
fig. 2 is a schematic view of a heating system of a solar biogas engineering provided by a second embodiment of the present invention;
fig. 3 is a schematic view of a heating system of a solar biogas engineering provided by a third embodiment of the present invention.
Wherein:
the system comprises a solar heat collector, a heat exchanger 2, a circulating water tank 3, a heat radiation tube panel 4, a heat conduction oil outlet tube 5, a heat conduction oil inlet tube 6, a first circulating pump 7, a circulating water outlet tube 8, a circulating water inlet tube 9, a second circulating pump 10, a bypass circulating tube 11, a bypass heater 12, a third circulating pump 13, a temperature sensor 14 and a control mechanism 15.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In order to make the technical field of the present invention better understand, the present invention will be described in detail with reference to the accompanying drawings and the detailed description.
Referring to fig. 1 to 3, fig. 1 is a schematic view of a heating system for solar biogas engineering according to a first embodiment of the present invention, fig. 2 is a schematic view of a heating system for solar biogas engineering according to a second embodiment of the present invention, and fig. 3 is a schematic view of a heating system for solar biogas engineering according to a third embodiment of the present invention.
The utility model provides a solar energy marsh gas engineering heating system includes solar collector 1, heat exchanger 2 and heat dissipation tube panel 4. The solar heat collector 1 is circularly communicated with the first side of the heat exchanger 2 through a first working medium circulating pipeline, the heat-radiating tube panel 4 is circularly communicated with the second side of the heat exchanger 2 through a second working medium circulating pipeline, and the heat-radiating tube panel 4 is used for being arranged in a biogas engineering, namely a biogas tank body, and is used for radiating heat and maintaining fermentation temperature.
The first side and the second side of the heat exchanger 2 are isolated, that is, the heat exchanger 2 is only used for exchanging heat of the heat conducting oil in the first working medium circulating pipeline and the heat of the second working medium in the second working medium circulating pipeline, and no working medium is mixed. The methane project is heated by solar energy, so that the energy consumption of commodities is saved, and the operation cost of the methane project is reduced. Keep apart first working medium circulation pipeline and second working medium circulation pipeline through heat exchanger 2, the heat conduction oil that first working medium adopted the boiling point height, and the energy storage is high can show the heat deposit that increases heat exchanger 2 first side, reduces arranging quantity and area of solar collector 1, has practiced thrift equipment cost. And heat conduction oil and a second working medium (usually water) are utilized to carry out heat exchange with larger temperature difference, so that the heat exchange efficiency is improved, and the heating requirement is met.
The heating system for solar biogas engineering provided by the present invention is described in more detail below with reference to the accompanying drawings and specific embodiments.
The utility model provides a in the first embodiment, as shown in figure 1, connect first working medium circulation pipeline between the first side of solar collector 1 and heat exchanger 2, first working medium circulation pipeline and solar collector 1 expert have high energy storage working medium conduction oil, utilize the high boiling point of conduction oil and the relatively big specific heat capacity to improve the energy storage ability of the working medium of solar collector 1 side to carry out the heat exchange through heat exchanger 2 and second working medium.
Specifically, the first working medium circulation pipeline comprises a heat conduction oil outlet pipe 5 and a heat conduction oil inlet pipe 6 which are communicated with the first sides of the solar heat collector 1 and the heat exchanger 2, wherein both the outflow and inflow of the heat conduction oil are relative to the solar heat collector 1, in order to ensure the normal circulation of the heat conduction oil, a first circulation pump 7 is also arranged in the first working medium circulation pipeline, and the first circulation pump 7 can be arranged on the heat conduction oil outlet pipe 5 or the heat conduction oil inlet pipe 6; since the temperature of the conduction oil outlet pipe 5 is relatively high, in a specific installation, the first circulation pump 7 is generally connected in series to the conduction oil inlet pipe 6.
The solar heat collector 1 utilizes solar energy to heat conduction oil, the conduction oil is conveyed to the first side of the heat exchanger 2 from the solar heat collector 1 through the conduction oil outflow pipe 5 to exchange heat under the action of the first circulating pump 7, and the conduction oil flows back to the solar heat collector 1 through the conduction oil inflow pipe 6 to continue heating after heat exchange and temperature reduction are completed so as to circularly heat the methane tank body and maintain the fermentation temperature of methane engineering.
In order to heat the interior of the biogas tank body, a heat dissipation tube panel 4 is arranged in the biogas tank body, the heat dissipation tube panel 4 is a tube panel type heat exchange mechanism, and the proper fermentation temperature is maintained by exchanging heat between the second working medium in the tube and the air in the biogas tank body. And the second side of the heat exchanger 2 is communicated with the heat-radiating tube panel 4 through a second working medium circulation pipeline. Specifically, the second working medium circulation pipeline comprises a circulation water outlet pipe 8, a circulation water inlet pipe 9 and a second circulation pump 10, and it should be noted that the water inlet and the water outlet are relative to the second side of the heat exchanger 2. The second circulation pump 10 may be disposed on the circulation water outlet pipe 8, or may be connected in series to the circulation water inlet pipe 9, and the second circulation pump 10 is disposed on the circulation water inlet pipe 9 side in consideration of the relatively low temperature of the circulation water inlet pipe 9.
At this time, the second working medium (specifically, circulating water) in the second working medium circulation pipeline is conveyed to the second side of the heat exchanger 2 under the action of the second circulation pump 10 to exchange heat with the heat conducting oil, and the circulating water after heat exchange and temperature rise is conveyed to the heat dissipation pipe panel 4 through the circulation water outlet pipe 8 to dissipate heat, so as to maintain the fermentation temperature in the methane tank body.
Referring to fig. 2, in a second embodiment of the present invention, a circulation water tank 3 is further disposed in the second circulation pipeline, and the circulation water tank 3 is utilized to store water and energy. At this moment, second circulating pump 10 sets up between circulating water tank 3 and heat exchanger 2, and the circulating water is carried to heat exchanger 2 heat transfer back through second circulating pump 10 and is carried to circulating water tank 3, then relies on the action of gravity to carry to radiator-tube panel 4, and certainly still can set up second circulating pump 10 as required between radiator-tube panel 4 and circulating water tank 3, promotion circulation power. In order to reduce the heat loss, the circulation water tank 3 is further provided with a heat insulation layer, for example, the heat insulation material is coated outside the circulation water tank 3, a heat insulation coating is coated inside the circulation water tank 3, and the second working medium circulation pipeline can also be coated with the heat insulation material.
The heat-conducting oil energy storage and the water storage and energy storage functions of the circulating water tank 3 are beneficial to stably and continuously heating the interior of the biogas tank body, the heating effect can be kept for a long time even after the heat-conducting oil storage and energy storage functions are dark, the use of commodity energy (for heating the biogas tank body) is reduced, and therefore the running cost of biogas engineering is saved.
In consideration of the weather conditions, the temperature of water in the circulating water tank 3 tends to drop in severe weather conditions, so that the inside of the biogas tank is not heated in place, and the fermentation temperature is difficult to maintain. In the third embodiment, the solar energy biogas engineering heating system is further provided with an auxiliary heating mechanism, the auxiliary heating mechanism comprises a bypass circulation pipe 11 connected with the circulation water tank 3, and a bypass heater 12 and a third circulation pump 13 are arranged in the bypass circulation pipe 11. When the temperature of the water in the circulation water tank 3 is not enough to maintain the fermentation temperature through the heat dissipation of the heat dissipation tube panel 4, the third circulation pump 13 and the bypass heater 12 are started, and the third circulation pump 13 conveys the circulation water in the circulation water tank 3 to the bypass heater 12 through the bypass circulation tube 11 to be heated and then returns to the circulation water tank 3.
The bypass heater 12 may be an electric heater; in a preferred embodiment, the bypass heater 12 is a biogas boiler, the circulating water is delivered into the biogas boiler by means of a third circulating pump 13 and a bypass circulating pipe 11, and the circulating water in the biogas boiler is heated by biogas generated by fermentation and then delivered into the circulating water tank 3 again.
Furthermore, a temperature sensor 14 is further arranged in the circulating water tank 3, the temperature sensor 14 is connected with the third circulating pump 13 and the bypass heater 12 through a control mechanism 15, and when the temperature in the circulating water tank 3 is lower than a set temperature value, the control mechanism 15 controls the third circulating pump 13 and the bypass heater 12 to be started. When the bypass heater 12 adopts a biogas boiler, the starting specifically refers to that the control mechanism 15 controls the biogas boiler to open the biogas pipe valve and ignite. The control means 15 may be provided with a temperature sensor 14 as referred to in the art and will not be described in detail here.
The heat dissipation tube panel 4 in the above embodiment is usually selected to be a spiral tube panel, and the spiral tube panel is arranged to be attached to the inner side wall of the biogas tank body. The heat transfer oil can further select alkylbenzene type (benzene ring type) heat transfer oil (the boiling point is 170-.
When the heating system of the upper solar biogas project operates, firstly, heat conducting oil is required to be introduced into the solar heat collector 1 to serve as a heat absorption energy storage working medium; then the heat conduction oil and the circulating water exchange heat through a heat exchanger 2; and finally, heating the biogas project by using the circulating water which is subjected to heat exchange and temperature rise to reach the preset temperature. The heat conduction oil is used as a heating energy storage working medium, the characteristics of high boiling point and high energy storage of the heat conduction oil are fully utilized, the heat conduction oil and the circulating water are utilized for heat exchange, large temperature difference heat exchange is realized, the heat exchange efficiency is improved, and therefore the real-time heating requirement of the biogas engineering can be met by the solar heat collector 1 with a small area, and the equipment cost is saved. The heating of the biogas engineering by means of the circulating water specifically means that the circulating water heated to reach the preset temperature is introduced into the heat dissipation tube panel 4, and the heat dissipation tube panel 4 is arranged in the biogas tank body to realize the heating of the biogas engineering. Here, the circulating water temperature refers to the temperature of the circulating water flowing to the radiant tube panel 4.
In order to avoid that the heating requirement of the biogas project cannot be met only by the solar heat collector 1 and heat transfer oil and circulating water in a severe weather state, the method also comprises the step of detecting the water temperature of the circulating water before heating the biogas project by means of circulating water heat dissipation; then, judging according to the comparison between the detected temperature and the preset temperature; when the temperature of the circulating water does not meet the heating requirement, namely is lower than the preset temperature, the circulating water needs to be heated by an auxiliary heating system until the temperature reaches the preset temperature; when the water temperature of the circulating water is detected to reach the preset temperature, namely the heating requirement is met, the circulating water is introduced into the heat dissipation tube panel 4 to heat the biogas project; the circulating water is heated by comprehensively utilizing the commodity energy and the solar energy, so that the use of the commodity energy is reduced, and the operation cost is saved.
It is noted that, in this specification, relational terms such as first and second, and the like are used solely to distinguish one entity from another entity without necessarily requiring or implying any actual such relationship or order between such entities.
The solar energy methane engineering heating system provided by the utility model is introduced in detail. The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the method and its core ideas of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.
Claims (8)
1. A heating system for a solar biogas project is characterized by comprising a solar heat collector (1), a heat exchanger (2) and a heat dissipation tube panel (4) arranged in a biogas tank body;
a first working medium circulation pipeline is connected between the first side of the heat exchanger (2) and the solar heat collector (1), a second working medium circulation pipeline is connected between the second side of the heat exchanger (2) and the heat dissipation tube panel (4), and the first side and the second side of the heat exchanger (2) are isolated;
and heat conducting oil for exchanging heat with a second working medium circulating on the second side of the heat exchanger (2) is communicated with the solar heat collector (1) and the first working medium circulating pipeline.
2. The solar biogas engineering heating system according to claim 1, wherein the first working medium circulation pipeline comprises a heat transfer oil outflow pipe (5), a heat transfer oil inflow pipe (6) and a first circulation pump (7) connected to the heat transfer oil outflow pipe (5) or the heat transfer oil inflow pipe (6);
the second working medium is circulating water, and the second working medium circulating pipeline comprises a circulating water outlet pipe (8), a circulating water inlet pipe (9) and a second circulating pump (10) connected to the circulating water outlet pipe (8) or the circulating water inlet pipe (9).
3. The heating system for solar biogas engineering according to claim 2, wherein a circulation water tank (3) communicated with the second working medium circulation pipeline is further arranged between the heat exchanger (2) and the heat-radiating tube panel (4).
4. Solar biogas engineering heating system according to claim 3, wherein the heat-dissipating tube panels (4) are spiral tube panels.
5. Solar biogas engineering heating system according to claim 3 or 4, characterized in that the circulation water tank (3) is connected with a bypass circulation pipe (11), a bypass heater (12) and a third circulation pump (13) arranged on the bypass circulation pipe (11).
6. Solar biogas engineering heating system according to claim 5, characterized in that the bypass heater (12) is a biogas boiler heated by applying biogas combustion.
7. The solar biogas engineering heating system according to claim 5, wherein a temperature sensor (14) is arranged in the circulating water tank (3), and the temperature sensor (14) is connected with a control mechanism (15) for controlling the third circulating pump (13) and the bypass heater (12) to start operation when the temperature of the circulating water is lower than a preset value.
8. The solar biogas engineering heating system according to claim 7, wherein the thermal oil is an alkyl naphthalene type thermal oil or an alkyl biphenyl type thermal oil.
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| CN202020097809.1U CN211734376U (en) | 2020-01-16 | 2020-01-16 | Solar energy marsh gas engineering heating system |
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| CN202020097809.1U CN211734376U (en) | 2020-01-16 | 2020-01-16 | Solar energy marsh gas engineering heating system |
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| CN211734376U true CN211734376U (en) | 2020-10-23 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111117881A (en) * | 2020-01-16 | 2020-05-08 | 吉林东晟生物质能工程研究院(有限合伙) | Solar biogas engineering heating system and method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111117881A (en) * | 2020-01-16 | 2020-05-08 | 吉林东晟生物质能工程研究院(有限合伙) | Solar biogas engineering heating system and method |
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Effective date of registration: 20230522 Address after: 134199 10th floor, Chuangye building, 2777 Tongde Road, Juxin Economic Development Zone, Tonghua County, Tonghua City, Jilin Province Patentee after: Zhengxu industry (Jilin) Co.,Ltd. Address before: 134000 Group 3, Ying'ebu Village, Ying'ebu Town, Tonghua County, Tonghua City, Jilin Province Patentee before: Jilin Dongsheng Biomass Energy Engineering Research Institute (L.P.) |