CN212481750U - Lithium bromide cold quantity balance system - Google Patents
Lithium bromide cold quantity balance system Download PDFInfo
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- CN212481750U CN212481750U CN202020908629.7U CN202020908629U CN212481750U CN 212481750 U CN212481750 U CN 212481750U CN 202020908629 U CN202020908629 U CN 202020908629U CN 212481750 U CN212481750 U CN 212481750U
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Abstract
The utility model discloses a lithium bromide cold quantity balancing system, relating to the technical field of new energy and energy conservation and environmental protection, comprising a urea lithium bromide cold water system and a synthetic lithium bromide cold water system; the urea lithium bromide cold water system comprises a urea lithium bromide refrigerating unit, a cold water feeding pipeline I, a cold water return pipeline I and a cold water pump set I, wherein a urea evaporation device and a methanol washing heat exchanger I are externally connected in parallel between the cold water feeding pipeline I and the cold water return pipeline I; the synthetic lithium bromide cold water system comprises a synthetic lithium bromide refrigerating unit, a cold water feeding pipeline II, a cold water return pipeline II and a cold water pump set II, wherein an ammonia synthetic water cooling device and a furfuryl alcohol device are externally connected in parallel between the cold water feeding pipeline II and the cold water return pipeline II; and a cold water feeding serial pipe is communicated between the first cold water feeding pipeline and the second cold water feeding pipeline, and a cold water returning serial pipe is communicated between the first cold water returning pipeline and the second cold water returning pipeline, so that the cold energy distribution of the cold water of the whole production device is reasonable and efficient.
Description
Technical Field
The utility model relates to a new forms of energy and energy-concerving and environment-protective technical field especially relate to a lithium bromide cold volume balanced system.
Background
Twelve-five national strategic emerging industry development planning points out that the industrialization of renewable energy technologies such as novel solar photovoltaic and thermal power generation, biomass gasification, biofuel, ocean energy and the like with basically mature technology and large development potential is promoted by accelerating the development of new energy such as nuclear power, wind power, solar photovoltaic and thermal utilization, shale rock, biomass power generation, geothermal and geothermal energy, methane and the like with strong market competitiveness, and important engineering of integration and utilization of new energy is implemented. By 2015, the proportion of new energy in the total energy consumption is increased to 4.5%, and the annual emission of carbon dioxide is reduced by more than 4 hundred million tons. By 2015, the energy-saving potential of China exceeds 4 hundred million tons of standard coal, which can drive trillion yuan investment, and the total output value of the energy-saving service industry can break through 3000 hundred million yuan. However, new energy applications also face cost savings and environmental protection issues. Therefore, the essence of energy is to solve the problem of how to supply three basic substances of cold, heat and electricity in a physical or chemical way most effectively, and the essence of energy is the key of the development of new energy, energy-saving and environment-friendly technology and industry.
The traditional heating power and air conditioning system only heats or refrigerates in one way when heating or refrigerating. During heating, the replaced cold energy is not effectively utilized, and various devices and suitable environments are required to be configured for discharging; in the refrigeration, the replaced cold energy is not effectively utilized, and various devices and suitable environments are required to be configured for discharging. This has become a common occurrence in industry, commerce, national defense, plant and farming and residential life: on one hand, a large amount of waste cold is lost during heating and heat is required to be disposed with high cost, and on the other hand, energy is also required to be consumed for cooling and heat. If the lost cold and heat energy can be effectively utilized and applied to industrial production and daily life, the energy utilization efficiency can be improved by times, and the energy use cost and the ecological environment damage are greatly reduced
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the unreasonable problem of cold volume matching that current urea lithium bromide preparation exists, providing a lithium bromide cold volume balanced system, making the cold water cold volume of whole apparatus for producing distribute rationally, high-efficiently.
In order to realize the above purpose, the utility model discloses a technical scheme is:
a lithium bromide cold quantity balancing system comprises a urea lithium bromide cold water system and a synthetic lithium bromide cold water system;
the urea lithium bromide cold water system comprises a urea lithium bromide refrigerating unit, a first cold water feeding pipeline, a first cold water return pipeline and a first cold water pump set, wherein the first cold water feeding pipeline, the first urea lithium bromide refrigerating unit, the first cold water pump set and the first cold water return pipeline are sequentially connected in series to form a first cold water circulating channel, and a urea evaporation device and a first methanol washing heat exchanger are externally connected in parallel between the first cold water feeding pipeline and the first cold water return pipeline;
the synthetic lithium bromide cold water system comprises a synthetic lithium bromide refrigerating unit, a cold water feeding pipeline II, a cold water return pipeline II and a cold water pump set II, wherein the cold water feeding pipeline II, the bromine refrigerating unit II, the cold water pump set II and the cold water return pipeline II are sequentially connected in series to form a cold water circulating channel II, and an ammonia synthetic water cooling device and a furfuryl alcohol device are externally connected between the cold water feeding pipeline II and the cold water return pipeline II in parallel;
the cold water feeding pipeline I, the cold water return pipeline I, the cold water feeding pipeline II and the cold water return pipeline II are respectively provided with a valve I, a cold water feeding serial pipe is communicated between the cold water feeding pipeline I and the cold water feeding pipeline II, and a cold water return serial pipe is communicated between the cold water return pipeline I and the cold water return pipeline II.
In order to further optimize the utility model discloses, can prefer following technical scheme for use:
preferably, the urea lithium bromide refrigerating unit is connected in parallel with a bromine refrigerating unit I, a bromine refrigerating unit II and a bromine refrigerating unit III, and the synthetic lithium bromide refrigerating unit is connected in parallel with a bromine refrigerating unit IV, a bromine refrigerating unit V and a bromine refrigerating unit VI.
Preferably, the first cold water pump group comprises a first cold water pump, a second cold water pump and a third cold water pump which are arranged in parallel, and the second cold water pump group comprises a fourth cold water pump, a fifth cold water pump and a sixth cold water pump which are arranged in parallel.
Preferably, a second methanol washing heat exchanger is connected between the cold water feeding serial pipe and the cold water returning serial pipe.
Preferably, a double valve I is arranged on a pipeline at the position of a cold water outlet of the bromine cooling unit III, a cold water feeding pipeline is communicated with a pipeline between a cold water feeding serial pipe and the double valve I, and a pressure gauge I and a drainage water guide spraying port I are arranged on the cold water feeding serial pipe.
Preferably, a double valve II is arranged on a pipeline at the position of a cold water inlet of the bromine cooling unit III, a cold water return pipeline two-way cold water return series pipe is communicated with a pipeline between the double valves II, and a cold water feeding series pipe is provided with a pressure gauge II and a drainage water guide spraying port II.
Preferably, a communicating pipe is connected between the cold water feeding serial pipe and the cold water returning serial pipe, and a second valve is arranged on the communicating pipe.
The utility model has the advantages that:
1. the bromine cooling unit I and the bromine cooling unit II in the urea lithium bromide of the utility model are specially used for providing cold water for a urea production system; the urea lithium bromide bromine cooling unit III, the synthetic lithium bromide unit bromine cooling unit IV, the bromine cooling unit V and the bromine cooling unit VI are specially used for providing cold water for a synthetic ammonia production system; the cold water systems of the urea production system and the synthetic ammonia production system are separated, so that the load of the device is adjusted more flexibly.
2. The utility model discloses in incorporate synthetic lithium bromide cooling water system with urea lithium bromide bromine cold machine group three, satisfy the cold volume demand of the present cold water of synthetic ammonia production system and the cold volume demand of the cold water that lasts to increase in the future, make the cold volume of cold water distribution of whole apparatus for producing reasonable, high-efficient.
Drawings
FIG. 1 is a flow chart of the whole lithium bromide cold balance system;
FIG. 2 is a flow diagram of a urea lithium bromide cold water system;
FIG. 3 is a flow diagram of a system for synthesizing cold lithium bromide water;
FIG. 4 is an enlarged view of the structure at A;
fig. 5 is an enlarged view of the structure at B.
The system comprises a 1-bromine cooling unit I, a 2-bromine cooling unit II, a 3-bromine cooling unit III, a 4-bromine cooling unit IV, a 5-bromine cooling unit V, a 6-bromine cooling unit VI, a 7-cold water pump I, an 8-cold water pump II, a 9-cold water pump III, a 10-cold water pump IV, an 11-cold water pump V, a 12-cold water pump VI, a 13-valve I, a 14-valve II, a 15-pressure gauge I, a 16-drainage water guide and shower opening I, a 17-pressure gauge II, an 18-drainage water guide and shower opening II, a 19-communicating pipe, a 20-urea evaporation device, a 21-methanol washing heat exchanger I, a 22-methanol washing heat exchanger II, a 23-ammonia synthesis water cooling device, a 24-furfuryl alcohol device, a 25-cold water feeding serial pipe and a 26-cold water returning pipe.
Detailed Description
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; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
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.
Example (b):
referring to fig. 1-5, a lithium bromide cold balance system comprises a urea lithium bromide cold water system and a synthetic lithium bromide cold water system; the urea lithium bromide cold water system comprises a urea lithium bromide refrigerating unit, a first cold water feeding pipeline, a first cold water return pipeline and a first cold water pump set, wherein the first cold water feeding pipeline, the first urea lithium bromide refrigerating unit, the first cold water pump set and the first cold water return pipeline are sequentially connected in series to form a first cold water circulating channel, and a urea evaporation device 20 and a first methanol washing heat exchanger 21 are externally connected between the first cold water feeding pipeline and the first cold water return pipeline in parallel to provide cold water for the urea evaporation device 20 and the first methanol washing heat exchanger. The urea lithium bromide refrigerating unit comprises a bromine refrigerating unit I1, a bromine refrigerating unit II 2 and a bromine refrigerating unit III 3 which are installed in parallel, a cold water pump set I comprises a cold water pump I7, a cold water pump II 8 and a cold water pump III 9 which are installed in parallel, and each bromine refrigerating unit is provided with a corresponding cold water pump, so that the stability of power transmission is ensured. The synthetic lithium bromide cold water system comprises a synthetic lithium bromide refrigerating unit, a cold water feeding pipeline II, a cold water return pipeline II and a cold water pump set II, wherein the cold water feeding pipeline II, the synthetic lithium bromide refrigerating unit, the cold water pump set II and the cold water return pipeline II are sequentially connected in series to form a cold water circulating channel II, and an ammonia synthesis water cooling device 23 and a furfuryl alcohol device 24 are externally connected between the cold water feeding pipeline II and the cold water return pipeline II in parallel to provide cold water for the ammonia synthesis device and the furfuryl alcohol device; the synthetic lithium bromide refrigerating unit comprises a bromine refrigerating unit four 4, a bromine refrigerating unit five 5 and a bromine refrigerating unit six 6 which are installed in parallel, the cold water pump unit two comprises a cold water pump four 10, a cold water pump five 11 and a cold water pump six 12 which are installed in parallel, and each bromine refrigerating unit is provided with a corresponding cold water pump, so that the stability of power transmission is ensured. The first cold water feeding pipeline, the first cold water return pipeline, the second cold water feeding pipeline and the second cold water return pipeline are respectively provided with a first valve 13, a cold water feeding serial pipe is communicated between the first cold water feeding pipeline and the second cold water feeding pipeline, and a cold water feeding serial pipe is communicated between the first cold water return pipeline and the second cold water return pipeline. A second methanol washing heat exchanger 22 is connected between the cold water feeding serial pipe and the cold water return serial pipe. In this embodiment, a third bromine cooling unit in the urea lithium bromide unit is connected in series with the synthetic lithium bromide cold water system, a second methanol washing heat exchanger 22 is connected in parallel to the series pipe of the system, and a first methanol washing heat exchanger 21 is placed in a cold water system formed by the third bromine cooling unit of the urea lithium bromide and the synthetic lithium bromide cold water system, that is, rich cold of the urea lithium bromide cold water system is delivered to the synthetic lithium bromide cold water system, so as to solve the problem of insufficient cold of the synthetic lithium bromide cold water system in summer. The cold water feeding serial pipe is connected with a cold water feeding pipeline of a first methanol washing heat exchanger 21, and the cold water return serial pipe is connected with a cold water return pipeline of the first methanol washing heat exchanger 21, so that the first methanol washing heat exchanger 21 can only use the bromine cooling unit three-cooling water of urea lithium bromide, namely, the first methanol washing heat exchanger 21 is connected in parallel to a cold water system consisting of the bromine cooling unit three of urea lithium bromide and a synthetic lithium bromide cold water system. A double valve I is arranged on a pipeline at the position of a third cold water outlet of the bromine cooling unit, a cold water feeding pipeline is communicated with a pipeline between a two-way cold water feeding serial pipe and the double valve I, a pressure gauge I15 and a drainage water guiding and sprinkling opening I16 are arranged on the cold water feeding serial pipe, a double valve II is arranged on a pipeline at the position of a third cold water inlet of the bromine cooling unit, a two-way cold water returning pipeline is communicated with a pipeline between the two-way cold water returning serial pipe and the double valve II, a pressure gauge II 17 and a drainage water guiding and sprinkling opening II 18 are arranged on the cold water feeding serial pipe, a communicating pipe 19 is connected between the cold water feeding serial pipe and the cold water returning serial pipe, a valve II 14 is arranged on the communicating pipe 19, a cold water feeding serial pipe 25 and a cold water returning serial pipe, when the urea lithium bromide bromine cooling unit III is merged into the synthetic lithium bromide cold water system and the system is started, the cold water is recycled, so that the urea lithium bromide bromine cooling unit III is smoothly merged into the synthetic lithium bromide cold water system.
The use method of the system comprises the following steps:
1. under the normal production condition, the first bromine cooling unit and the second bromine cooling unit of the urea lithium bromide provide cold water for a urea evaporation position, and the cold water system consisting of the third urea lithium bromide cooling unit and the synthetic lithium bromide cold water system provides cold water for the ammonia synthesis device, the furfuryl alcohol device, the first methanol washing heat exchanger and the second methanol washing heat exchanger.
2. When the post load of the urea evaporation system is heavy and needs emergency adjustment, the three-cold water of the urea lithium bromide bromine cooling unit can be switched to the urea system (fully switched or partially switched) to ensure the stable operation of the urea evaporation system. The cold quantity of the cold water of the urea lithium bromide bromine cooling unit III switched to the urea evaporation system is temporarily provided by other equipment of the synthetic ammonia synthesis system.
3. And a cold water circulation pipeline for starting the three bromine cooling units is arranged, and cold water is recycled when the urea lithium bromide bromine cooling unit is combined with the synthetic lithium bromide cold water system for starting. When the temperature of the cold water of the urea lithium bromide cold unit III is reduced to be close to that of the cold water of the synthetic lithium bromide cold water system, the cold water feeding serial pipe serial valve and the cold water returning serial pipe serial valve are opened, the circulating valve of the cold water circulating pipeline of the unit starting machine is closed, the urea lithium bromide cold unit III is merged into the synthetic lithium bromide cold water system, and the impact on the cold water temperature of the synthetic lithium bromide cold water system caused by the high temperature of the cold water produced by the three 3# units of the urea lithium bromide cold unit is avoided.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.
Claims (7)
1. A lithium bromide cold quantity balanced system is characterized in that: comprises a urea lithium bromide cold water system and a synthetic lithium bromide cold water system;
the urea lithium bromide cold water system comprises a urea lithium bromide refrigerating unit, a first cold water feeding pipeline, a first cold water return pipeline and a first cold water pump set, wherein the first cold water feeding pipeline, the first urea lithium bromide refrigerating unit, the first cold water pump set and the first cold water return pipeline are sequentially connected in series to form a first cold water circulating channel, and a urea evaporation device and a first methanol washing heat exchanger are externally connected in parallel between the first cold water feeding pipeline and the first cold water return pipeline;
the synthetic lithium bromide cold water system comprises a synthetic lithium bromide refrigerating unit, a cold water feeding pipeline II, a cold water return pipeline II and a cold water pump set II, wherein the cold water feeding pipeline II, the bromine refrigerating unit II, the cold water pump set II and the cold water return pipeline II are sequentially connected in series to form a cold water circulating channel II, and an ammonia synthetic water cooling device and a furfuryl alcohol device are externally connected between the cold water feeding pipeline II and the cold water return pipeline II in parallel;
the cold water feeding pipeline I, the cold water return pipeline I, the cold water feeding pipeline II and the cold water return pipeline II are respectively provided with a valve I, a cold water feeding serial pipe is communicated between the cold water feeding pipeline I and the cold water feeding pipeline II, and a cold water return serial pipe is communicated between the cold water return pipeline I and the cold water return pipeline II.
2. The lithium bromide cold balance system of claim 1, wherein: the urea lithium bromide refrigeration unit is connected with a bromine refrigeration unit I, a bromine refrigeration unit II and a bromine refrigeration unit III in parallel, and the synthetic lithium bromide refrigeration unit is connected with a bromine refrigeration unit IV, a bromine refrigeration unit V and a bromine refrigeration unit VI in parallel.
3. The lithium bromide cold balance system of claim 1, wherein: the first cold water pump set comprises a first cold water pump, a second cold water pump and a third cold water pump which are arranged in parallel, and the second cold water pump set comprises a fourth cold water pump, a fifth cold water pump and a sixth cold water pump which are arranged in parallel.
4. The lithium bromide cold balance system of claim 1, wherein: the above-mentioned
A second methanol washing heat exchanger is connected between the cold water feeding serial pipe and the cold water return serial pipe.
5. The lithium bromide cold balance system of claim 2, wherein: a double valve I is arranged on a pipeline at the position of a cold water outlet of the bromine cooling unit III, a cold water feeding pipeline is communicated with a pipeline between a cold water feeding serial pipe and the double valve I, and a pressure gauge I and a drainage water guide spraying opening I are arranged on the cold water feeding serial pipe.
6. The lithium bromide cold balance system of claim 2, wherein: and a double valve II is arranged on a pipeline at the position of a cold water inlet of the bromine cooling unit III, a cold water return pipeline two-way cold water return series pipe is communicated with a pipeline between the double valve II, and a cold water feeding series pipe is provided with a pressure gauge II and a drainage water guide spraying port II.
7. The lithium bromide cold balance system of claim 1, wherein: and a communicating pipe is connected between the cold water feeding serial pipe and the cold water return serial pipe, and a second valve is arranged on the communicating pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020908629.7U CN212481750U (en) | 2020-05-26 | 2020-05-26 | Lithium bromide cold quantity balance system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020908629.7U CN212481750U (en) | 2020-05-26 | 2020-05-26 | Lithium bromide cold quantity balance system |
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| CN212481750U true CN212481750U (en) | 2021-02-05 |
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| CN202020908629.7U Active CN212481750U (en) | 2020-05-26 | 2020-05-26 | Lithium bromide cold quantity balance system |
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