CN210292418U - Thermal dam device for organizing directional flow of water vapor - Google Patents
Thermal dam device for organizing directional flow of water vapor Download PDFInfo
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- CN210292418U CN210292418U CN201920945013.4U CN201920945013U CN210292418U CN 210292418 U CN210292418 U CN 210292418U CN 201920945013 U CN201920945013 U CN 201920945013U CN 210292418 U CN210292418 U CN 210292418U
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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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/27—Relating to heating, ventilation or air conditioning [HVAC] technologies
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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
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- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/62—Absorption based systems
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Abstract
A thermal dam device for organizing the directional flow of water vapor is characterized in that: the vacuum heat pump system comprises an evaporator I, a type I thermal dam, a high-temperature heater, a type II thermal dam, a one-way air valve and a condenser which are sequentially arranged in a vacuum cylinder from front to back, wherein the type I thermal dam positioned between the evaporator and the high-temperature heater is composed of a plurality of longitudinally arranged curved plates, a water vapor circulation gap is arranged between every two adjacent curved plates, water vapor can naturally flow into the high-temperature heater from the evaporator, radiation of the high-temperature heater is shielded by the curved plates, and the evaporator is not influenced; the II-type thermal dam for organizing the water vapor high-temperature area to flow into the low-temperature area consists of a partition board which is transversely arranged in the vacuum cylinder and is provided with a water vapor circulation channel, and a one-way air valve which is arranged at the opening of the partition board and is controlled by an adjustable spring.
Description
Technical Field
The utility model relates to a lithium bromide absorption refrigeration technology, in particular to a thermal dam device for converting the pure molecular thermal motion of tissue water vapor into directional flow.
Background
The lithium bromide absorption refrigerator is a traditional absorption refrigerator and is widely used for air conditioning refrigeration. The lithium bromide absorption refrigerator has the advantages of stable operation, low noise, wide energy regulating range and simple maintenance operation. Given the current international banning of freon, the development of refrigerators with freon refrigerants will be limited. The pollution-free and pollution-free absorption refrigerant using water as the refrigerant has great development advantages. But requires a large amount of heat energy as a lithium bromide absorption refrigerator. At present, the environment is protected in China, a small coal-fired boiler is forbidden, the heat energy cost is greatly improved, and a lithium bromide absorption refrigerator is gradually eliminated.
The heat energy consumed by the lithium bromide absorption refrigerator is mainly the light lithium bromide solution after absorbing the refrigerant water vapor. According to the law of conservation of energy, the heat released by the refrigerant water vapor absorbed by the lithium bromide solution in the absorber is equal to the refrigerating capacity in the evaporator. The lithium bromide solution absorbs the water vapor and then evaporates the water with the same heat. The hot-pressing water vapor adopts a dry heat source to directly heat the water vapor of the refrigerant to the condensation temperature. And a large amount of heat energy consumed by secondary evaporation of refrigerant steam is avoided.
Although the refrigerant water of the lithium bromide absorption refrigerating unit is evaporated into water vapor again in the generator, the thermodynamic parameters of the lithium bromide absorption refrigerating unit are completely the same as those of the refrigerant water vapor in the hot compression circulating heater, and the lithium bromide absorption refrigerating unit has the same temperature, pressure, density and heat energy. However, the problem is that the refrigerant vapor flows into the heater from the evaporator, and the flow is caused because the density difference inside the refrigerant vapor and the gravity combine to generate the settling force, which is the natural flow heat exchange. The lithium bromide absorption refrigerator is in different environment where the water vapor generated by evaporating high temperature hot water with the same saturation temperature and saturation pressure is in. With sufficient power to flow into the condenser itself. And in the hot-pressing circulation, refrigerant steam naturally flows for heat convection and flows from the low-temperature evaporator to the high-temperature heater. It is impossible to flow spontaneously from the high temperature heater to the low temperature condenser in the same environment.
The reason why the directly heated refrigerant vapor cannot flow naturally but stays in the dry heater is that the special physical properties of the vapor (document [ 1 ] (new shu ben feng central air-conditioning technology and applied chemical industry publisher 2005) and a thermodynamic property chart of the vapor) are that the phase of the water is changed from liquid state to gas state, and the external heat energy heats the water to the saturation temperature of the energy level, and then the heat energy (latent heat of vaporization) of the saturated water is evaporated and absorbed to be changed into the vapor. Namely, the energy of the water vapor is divided into two parts, namely saturated water heat energy and water vapor (internal energy) latent heat of vaporization. Example 80 ℃ Water vapor saturated Water Heat energy 334.92 kJ/kg. The water vapor vaporization latent heat energy is 2308.83kJ/kg, water vapor is directly heated, vaporized water molecules in the water vapor directly receive heat energy, and partial internal energy is released by firstly changing the molecular energy structure of the water vapor. Document [ 1 ] water vapor is capable of 2488.00kJ/kg at 7 ℃ and 2308.83kJ/kg at 80 ℃. Meanwhile, a small amount of absorbed heat energy increases the kinetic energy of molecules, and the total energy of water vapor is 2514.41kJ/kg at 7 ℃ and 2643.75kJ/kg at 80 ℃ in a document [ 1 ]. From the literature [ 1 ], it is known that the energy level of water vapor is generated in two ways. One is to heat water to make the energy level of the water reach the saturation temperature (energy level) and then evaporate. One of the two heat-absorbing and evaporating water vapor at the saturation temperature of the low-temperature energy level and then heating the water vapor to the high-temperature energy level. The two approaches finally obtain the same-level high-temperature water vapor although both have the same thermodynamic parameters. The initial state is different, and the initial state of the high-temperature water vapor generated by a way of heating water has strong liquidity. The heating water vapor is heated to the initial state of the high-temperature water vapor period, and the state is all in a static pressure saturation state. The refrigerant is thus treated by hot pressing of the steam. Although the vapor reaches the same condensation temperature, compared with the traditional lithium bromide absorption refrigerator, the water vapor with the same temperature generated by the hot-pressing water vapor does not flow.
Disclosure of Invention
The purpose of the utility model is to provide a thermal dam device for organizing the directional flow of water vapor aiming at the defects existing in the prior art. The utility model discloses according to dalton law, it is not high at temperature (< 100 ℃) not high, the pure water steam that pressure (< 0.01 MPa) is not high is the same basically with the flow characteristic of ordinary air. The flow of water vapor can be completely studied according to the flow law of gas. Gas dynamics presented a major problem in their research, being the spatial distribution of flow rate and pressure, between which flow rate is a mathematical description of the flow situation. The pressure is a mathematical description of the kinetic energy of the flowing process, and the hot dam device is used for promoting the high-temperature refrigerant water vapor retained in the heater to automatically flow into the condenser, namely the flow of the hot-pressed water vapor is promoted to be carried out according to a gas dynamic method.
The utility model discloses a purpose accessible belongs to technical measure and realizes:
the utility model discloses a thermal dam device for organizing the directional flow of water vapor, which comprises an evaporator, a type I thermal dam, a high-temperature heater, a type II thermal dam and a condenser which are sequentially arranged in a vacuum cylinder from front to back, wherein the type I thermal dam positioned between the evaporator and the high-temperature heater consists of a plurality of curved plates which are longitudinally arranged, and a water vapor circulation gap is arranged between every two adjacent curved plates; the II-type thermal dam for organizing the water vapor high-temperature area to flow into the low-temperature area consists of a partition board which is transversely arranged in the vacuum cylinder and is provided with a water vapor circulation channel, and a one-way air valve which is arranged on the partition board and is used for opening and closing the water vapor circulation channel and controlled by an adjustable spring.
The utility model discloses in the upper end of one-way blast gate is installed in baffle vapor circulation passageway top through hinge, hinge.
The design principle of the utility model is as follows:
gas dynamics provide two conditions for gas flow, namely, in a cylinder limited by a solid wall surface, for example, air flows in a room, and water vapor flows in a pipeline. And changing the static characteristic of the pressure. The utility model discloses in hot dam of type II by horizontal in the vacuum cylinder body, and process the baffle that has vapor circulation passageway to and install the one-way blast gate by adjustable spring control on the baffle and constitute. When the one-way air valve does not work, the one-way air valve hangs down to shield the orifice, so that low-temperature water vapor is prevented from flowing to a high temperature, and the spring plays a role in pressing. When the temperature of the water vapor in the high-temperature heater rises, the pressure intensity is correspondingly increased; when the temperature and the pressure of the water vapor in the high-temperature heater are increased to set pressure, the internal and external pressure difference of the one-way air valve of the II-type thermal dam reaches set values, the one-way air valve is opened, the high-temperature water vapor flows to the low-temperature condenser spontaneously, and the set value of the internal and external pressure difference of the opened baffle is adjusted and positioned by the adjustable spring.
The I-shaped thermal dam 4 is of a lead-in structure and is arranged between an evaporator and a high-temperature heater of the thermal compression refrigerator. The channel for transferring heat by a dry heating source in the heater in the high vacuum cylinder depends on heat radiation, and the curved plate of the I-shaped thermal dam can isolate the heater and the evaporator into two areas with different temperatures by only shielding the heat radiation of the dry heating source.
The utility model has the advantages as follows:
document [ 1 ] there are two ways to convert steam from low temperature to high temperature steam. One is that low-temperature water is heated to high-temperature saturated water and then evaporated into high-temperature water vapor. The other is to heat low-temperature water vapor into high-temperature water vapor after low-temperature saturated water vapor is evaporated into low-temperature vapor. When the temperature of the two reaches a certain high temperature, all thermodynamic parameters (saturation) are completely the same. But different due to the different states of molecular motion. The first high-temperature water vapor naturally flows to the condenser. The second will reside within the barrel of the heating source. Document [ 2 ] (the Lu Guang Qing design Manual of heating and Ventilation, China building industry Press 1987) aerodynamically explains that the phenomenon is that the pressure of two kinds of water vapor is the same, but the first kind of water vapor heats the power of saturated water, and the static force characteristic of the pressure is changed. The utility model discloses according to dalton law, it is not high at temperature (< 100 ℃) not high, the pure water steam that pressure (< 0.01 MPa) is not high is the same basically with the flow characteristic of ordinary air. The flow of water vapor can be completely studied according to the flow law of gas. Gas dynamics presented a major problem in their research, being the spatial distribution of flow rate and pressure, between which flow rate is a mathematical description of the flow situation. Pressure is a mathematical description of the kinetic energy of a flow process. The utility model discloses make the flow of hot pressing shrink steam go on according to gas dynamics's method.
Description of the drawings:
fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a block diagram of a type i thermal dam of fig. 1.
Number in the figure: 1 is evaporator, 2 is high temperature heater, 3 is condenser, 4 is I type thermal dam, 5 is polylith bent type board, 6 is II type thermal dam, 7 is one-way blast gate, 8 is adjustable spring.
The specific implementation mode is as follows:
the invention will be further described with reference to the following examples (drawings):
as shown in fig. 1 and 2, the utility model discloses a organize directional hot dam device that flows of steam includes by preceding evaporimeter 1 to setting gradually in the vacuum cylinder after to, I type hot dam 4, high temperature heating ware 2, II type hot dam 6, condenser 3, wherein be located I type hot dam 4 between evaporimeter 1 and the high temperature heating ware 2 and constitute by a plurality of longitudinal arrangement's bent type board 5, and be provided with steam circulation clearance h between every adjacent bent type board, steam can flow in high temperature heating ware 2 by evaporimeter 1 naturally. The radiant heat of the high-temperature heater is shielded by the curved plate 5, and the evaporator 2 is not influenced; the II-type thermal dam 6 for organizing the water vapor high-temperature area to flow into the low-temperature area is composed of a partition board which is transversely arranged in the vacuum cylinder and is provided with a water vapor circulation channel, and a one-way air valve 7 which is arranged on the partition board and is used for opening and closing the water vapor circulation channel and controlled by an adjustable spring 8.
The utility model discloses in the top at baffle vapor circulation passageway is installed through hinge, hinge in the upper end of one-way blast gate 7. When the one-way air valve 7 does not work, the one-way air valve droops to shield the orifice, low-temperature water vapor is blocked from flowing to high temperature, and the spring 8 plays a role in pressing. When the temperature of the water vapor in the high temperature heater 2 increases, the pressure increases accordingly. When the temperature and the pressure of the water vapor in the high-temperature heater 2 rise to set pressure, the internal and external pressure difference of the one-way air valve 7 of the II-type thermal dam 6 reaches set values, the one-way air valve 7 is opened, the high-temperature water vapor spontaneously flows to the low-temperature condenser 3, and the internal and external pressure difference set value of the opening of the baffle 7 is adjusted and positioned by the adjustable spring 8.
Further comprising: because the evaporator 1, the high-temperature heater 2 and the condenser 3 are all arranged in a high-vacuum cylinder, the heat transfer of the water vapor is only convection heat dissipation and radiation heat. The I-shaped thermal dam 4 blocks radiant heat and allows water vapor to freely circulate, and the water vapor enables low-temperature gas to flow to an area with a high-temperature heat source due to the convection heat dissipation characteristic of gaseous substances, so that the I-shaped thermal dam 4 can organize the water vapor to flow from the low-temperature evaporator 1 to the high-temperature heater 2.
The II-type thermal dam 6 arranged between the high-temperature heater 2 and the condenser 3 is a water vapor circulation channel on a steel plate, and a one-way air valve 7 is installed. When the water vapor of the high temperature heater 2 does not reach a certain temperature, the wind sample is the low temperature water vapor in the low temperature condenser, and the one-way air valve is arranged in the channel between the wind sample and the high temperature heater, so that the wind sample can not flow to the heater. When the water vapor in the heater 2 is heated to a certain temperature, the water vapor has an inherent, unique and specific pressure at any temperature due to the physical characteristics of the water vapor. Meanwhile, the pressure of the water vapor is increased along with the temperature, and the pressure is also increased. Therefore, when the temperature and the pressure of the high-temperature heater 2 rise to a certain degree, the difference between the internal pressure and the external pressure of the one-way air valve changes continuously. When the internal and external pressure is higher than the pressure of the adjustable pressure spring on the one-way air valve, the one-way air valve 7 is opened, and at the moment, the high-temperature water vapor in the high-temperature heater 2 flows to the low-temperature condenser 3.
Claims (2)
1. A thermal dam device for organizing the directional flow of water vapor is characterized in that: the heat pump type I heat pump type vacuum evaporator comprises an evaporator, a type I heat dam, a high-temperature heater, a type II heat dam and a condenser which are sequentially arranged in a vacuum cylinder from front to back, wherein the type I heat dam positioned between the evaporator and the high-temperature heater consists of a plurality of longitudinally arranged curved plates, and a water vapor circulation gap is arranged between every two adjacent curved plates; the II-type thermal dam for organizing the water vapor high-temperature area to flow into the low-temperature area consists of a partition board which is transversely arranged in the vacuum cylinder and is provided with a water vapor circulation channel, and a one-way air valve which is arranged on the partition board and is used for opening and closing the water vapor circulation channel and controlled by an adjustable spring.
2. A thermal dam apparatus for organizing the directional flow of water vapor in accordance with claim 1, wherein: the upper end of the one-way air valve is arranged above the water vapor circulation channel of the partition plate through a hinge and a hinge shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920945013.4U CN210292418U (en) | 2019-06-22 | 2019-06-22 | Thermal dam device for organizing directional flow of water vapor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920945013.4U CN210292418U (en) | 2019-06-22 | 2019-06-22 | Thermal dam device for organizing directional flow of water vapor |
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| CN210292418U true CN210292418U (en) | 2020-04-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920945013.4U Active CN210292418U (en) | 2019-06-22 | 2019-06-22 | Thermal dam device for organizing directional flow of water vapor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110118449A (en) * | 2019-06-22 | 2019-08-13 | 娄伟 | A kind of hot Ju device for organizing water vapour directed flow |
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2019
- 2019-06-22 CN CN201920945013.4U patent/CN210292418U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110118449A (en) * | 2019-06-22 | 2019-08-13 | 娄伟 | A kind of hot Ju device for organizing water vapour directed flow |
| CN110118449B (en) * | 2019-06-22 | 2023-08-29 | 邰海军 | Heat dam device for organizing directional flow of water vapor |
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Effective date of registration: 20220909 Address after: Room 207, 2nd Floor, Zhongyuan Science and Technology Communication Center, No. D12, Sesame Street Park Lane, No. 220, Huashan Road, Sanguanmiao Street, Zhongyuan District, Zhengzhou City, Henan Province 450007 Patentee after: Lihai Molecular Energy Henan Technology Co.,Ltd. Address before: 450007 room 1101, block a, Jinyi international, Zhongyuan District, Zhengzhou City, Henan Province Patentee before: Lou Wei |
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