CN107795847A - To adjust the high-pressure gas device and adjusting method that gas storage temperature improves gas storage efficiency - Google Patents

To adjust the high-pressure gas device and adjusting method that gas storage temperature improves gas storage efficiency Download PDF

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CN107795847A
CN107795847A CN201711049425.1A CN201711049425A CN107795847A CN 107795847 A CN107795847 A CN 107795847A CN 201711049425 A CN201711049425 A CN 201711049425A CN 107795847 A CN107795847 A CN 107795847A
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gas
gas storage
temperature
storage chamber
heat
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梅生伟
卢强
薛小代
陈来军
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Tsinghua University
State Grid Corp of China SGCC
State Grid Anhui Electric Power Co Ltd
Sichuan Energy Internet Research Institute EIRI Tsinghua University
Wuhu Power Supply Co of State Grid Anhui Electric Power Co Ltd
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/002—Details of vessels or of the filling or discharging of vessels for vessels under pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/02—Special adaptations of indicating, measuring, or monitoring equipment
    • F17C13/025—Special adaptations of indicating, measuring, or monitoring equipment having the pressure as the parameter
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/02—Special adaptations of indicating, measuring, or monitoring equipment
    • F17C13/026—Special adaptations of indicating, measuring, or monitoring equipment having the temperature as the parameter
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
    • F17C2227/03—Heat exchange with the fluid
    • F17C2227/0302—Heat exchange with the fluid by heating
    • F17C2227/0309—Heat exchange with the fluid by heating using another fluid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
    • F17C2227/03—Heat exchange with the fluid
    • F17C2227/0337—Heat exchange with the fluid by cooling
    • F17C2227/0341—Heat exchange with the fluid by cooling using another fluid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
    • F17C2227/03—Heat exchange with the fluid
    • F17C2227/0367—Localisation of heat exchange
    • F17C2227/0369—Localisation of heat exchange in or on a vessel
    • F17C2227/0372—Localisation of heat exchange in or on a vessel in the gas
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
    • F17C2227/04—Methods for emptying or filling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
    • F17C2250/04—Indicating or measuring of parameters as input values
    • F17C2250/0404—Parameters indicated or measured
    • F17C2250/043—Pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
    • F17C2250/04—Indicating or measuring of parameters as input values
    • F17C2250/0404—Parameters indicated or measured
    • F17C2250/0439—Temperature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
    • F17C2250/07—Actions triggered by measured parameters
    • F17C2250/072—Action when predefined value is reached

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)

Abstract

本发明涉及气体压缩及储能技术领域，特别是涉及以调节储气温度提高储气效率的高压储气装置及调节方法。高压储气装置包括：储气室和换热组件；所述储气室气管通过阀门与外界相接；所述换热组件包括：换热器，工质源和循环泵；所述换热器、工质源和循环泵通过管路循环相接。本发明在储气室内设置换热组件，当储气室充气时，气压增大，温度提高，通过换热器将储气室内热量带走，维持储气室内温度稳定，增加储气量；当储气室放气时，气压降低，温度下降，通过换热器向储气室内提供热量，维持储气室内温度稳定，增加放气量，提高单位储气空间循环量，提高储气装置的储气效率。

The invention relates to the technical field of gas compression and energy storage, in particular to a high-pressure gas storage device and an adjustment method for improving gas storage efficiency by adjusting the gas storage temperature. The high-pressure gas storage device includes: a gas storage chamber and a heat exchange assembly; the air pipe of the gas storage chamber is connected to the outside world through a valve; the heat exchange assembly includes: a heat exchanger, a working medium source and a circulation pump; the heat exchanger , Working fluid source and circulation pump are connected through pipeline circulation. In the present invention, a heat exchange component is arranged in the gas storage chamber. When the gas storage chamber is inflated, the air pressure increases and the temperature increases, and the heat in the gas storage chamber is taken away through the heat exchanger, so as to maintain the temperature stability in the gas storage chamber and increase the gas storage capacity; When the gas chamber is deflated, the air pressure decreases and the temperature drops, and heat is supplied to the gas storage chamber through the heat exchanger to maintain a stable temperature in the gas storage chamber, increase the amount of deflated gas, increase the circulation volume of the unit gas storage space, and improve the gas storage efficiency of the gas storage device .

Description

以调节储气温度提高储气效率的高压储气装置及调节方法High-pressure gas storage device and adjustment method for improving gas storage efficiency by adjusting gas storage temperature

技术领域technical field

本发明涉及气体压缩及储能技术领域，特别是涉及以调节储气温度提高储气效率的高压储气装置及调节方法。The invention relates to the technical field of gas compression and energy storage, in particular to a high-pressure gas storage device and an adjustment method for improving gas storage efficiency by adjusting the gas storage temperature.

背景技术Background technique

高压气体在工业生产和日常生活中应用广泛，尤其在大型工业生产应用中，需要对大容量的高压气体储罐进行频繁的充放气。同时，一种新兴的储能技术，即压缩空气储能技术，已经开始在全球推广应用。该技术采用空气作为储能介质，空气压缩为储能过程，空气膨胀为释能过程；压缩空气储能系统一般为日循环工作模式，因此在压缩空气储能系统中需要对储气装置进行频繁的充放气循环。High-pressure gas is widely used in industrial production and daily life. Especially in large-scale industrial production applications, it is necessary to frequently fill and deflate large-capacity high-pressure gas storage tanks. At the same time, an emerging energy storage technology, namely compressed air energy storage technology, has begun to be promoted and applied globally. This technology uses air as the energy storage medium, air compression is the energy storage process, and air expansion is the energy release process; the compressed air energy storage system generally works in a daily cycle mode, so in the compressed air energy storage system, the gas storage device needs to be frequently The inflation and deflation cycle.

在压缩空气储能系统中，由于透平膨胀机对进气压力有一定的要求，储气室从最高储气压力放气到透平膨胀机最低进气压力时，放气过程结束，因而充气过程也是由该压力开始。记储气室最高和最低储气压力分别为ph和pl，并定义储气室储气效率为储气室在压力ph至压力pl范围内放气量与储气量之比，即η＝mout/min。In the compressed air energy storage system, since the turbo expander has certain requirements on the intake pressure, when the gas storage chamber is deflated from the highest storage pressure to the minimum intake pressure of the turbo expander, the deflation process ends, so the inflation The process also begins with this pressure. Record the highest and lowest gas storage pressures of the gas storage chamber as p h and p l respectively, and define the gas storage efficiency of the gas storage chamber as the ratio of the gas release volume to the gas storage volume in the range from the pressure p h to the pressure p l , that is, η = m out /m in .

充气过程中，由于进气温度较高，加之充气过程中储气室产生的压缩热效应，充气结束时储气室内的温度Th将高于充气开始时的温度(环境温度)T0，根据理想气体状态方程p*Mmol＝ρ*R*T，储气室的充气量min为：During the inflation process, due to the high intake air temperature and the compression heat effect generated by the air storage chamber during the inflation process, the temperature T h in the air storage chamber at the end of the inflation will be higher than the temperature (environmental temperature) T 0 at the beginning of the inflation. According to the ideal The gas state equation p*M mol = ρ *R*T, the gas filling volume min of the gas storage chamber is:

min＝(ρh-ρ0)*V＝(ph/Th-p0/T0)*Vm in =(ρ h -ρ 0 )*V=(p h /T h -p 0 /T 0 )*V

储气过程中，储气室内气体通过壁面与环境换热，由于储气过程较长，储气室内最终温度降低至环境温度T0，同时储气室内压力降低至p0’，但储气量不变，也即储气密度不变。During the gas storage process, the gas in the gas storage chamber exchanges heat with the environment through the wall surface. Due to the long gas storage process, the final temperature in the gas storage chamber drops to the ambient temperature T 0 , and the pressure in the gas storage chamber decreases to p 0 ', but the gas storage capacity is not Change, that is, the gas storage density does not change.

放气过程中，由于储气室内压力持续降低，产生膨胀制冷效应，放气结束时储气室内的温度Tl将低于放气开始时的温度T0，根据理想气体状态方程p*Mmol＝ρ*R*T，储气室的充气量mout为：During the deflation process, due to the continuous decrease in the pressure in the gas storage chamber, the expansion cooling effect occurs, and the temperature T l in the gas storage chamber at the end of the deflation will be lower than the temperature T 0 at the beginning of the deflation. According to the ideal gas state equation p*M mol ＝ρ*R*T, the gas filling volume m out of the gas storage chamber is:

mout＝(ρ0-ρl)*V＝(p0/T0-pl/Tl)*Vm out =(ρ 0 -ρ l )*V=(p 0 /T 0 -p l /T l )*V

放气结束后，储气室以低压状态静置长时间后再重新充气，此过程中储气室内气体通过壁面与环境换热，储气室内最终温度升高至环境温度T0，同时储气室内压力升高至p0，充放气循环完成。After deflation, the gas storage chamber is left to stand at low pressure for a long time and then re-inflated. During this process, the gas in the gas storage chamber exchanges heat with the environment through the wall surface, and the final temperature in the gas storage chamber rises to the ambient temperature T 0 . The pressure in the chamber rises to p 0 , and the inflation and deflation cycle is completed.

则储气室的储气效率为：Then the gas storage efficiency of the gas storage chamber is:

η＝mout/min＝[T0/Th*(ph/p0)-1]/[1-T0/Tl*(pl/p0)]η=m out / min =[T 0 /T h *(p h /p 0 )-1]/[1-T 0 /T l *(p l /p 0 )]

对于某一压缩空气储能系统，T0*ph/p0和T0*pl/p0为常数，分别记为C1和C2，则储气室储气效率为：For a compressed air energy storage system, T 0 *p h /p 0 and T 0 *p l /p 0 are constants, denoted as C 1 and C 2 respectively, then the gas storage efficiency of the air storage chamber is:

η＝(C1/Th-1)/(1-C2/Tl)η=(C 1 /T h -1)/(1-C 2 /T l )

显然，储气效率η在随最高温度Th降低而增大，且随最低温度Tl升高而增大。Obviously, the gas storage efficiency η increases with the decrease of the highest temperature T h and increases with the increase of the lowest temperature T l .

综上所述，充气过程中由于气温上升导致实际充气量减少，而放气过程中由于气温降低又导致实际放气量进一步减少，充放气过程中的温度变化降低了储气装置的充放气循环量，从而影响压缩空气储能系统的储能效率和经济效益。如果能够在储气装置充放气过程中使气腔内的温度保持在稳定范围内，将显著提高储气装置的单位容积循环量，进而提高储能效率和经济效益。To sum up, during the inflation process, the actual inflation volume decreases due to the rise in temperature, and the actual deflation volume further decreases due to the decrease in temperature during the deflation process. The cycle volume affects the energy storage efficiency and economic benefits of the compressed air energy storage system. If the temperature in the air chamber can be kept within a stable range during the charging and discharging process of the gas storage device, the circulation rate per unit volume of the gas storage device will be significantly increased, thereby improving energy storage efficiency and economic benefits.

发明内容Contents of the invention

(一)要解决的技术问题(1) Technical problems to be solved

本发明的目的是提供以调节储气温度提高储气效率的高压储气装置及调节方法，解决高压气体储气装置在充放气过程中温度变化降低了储气装置的充放气循环量的问题。The object of the present invention is to provide a high-pressure gas storage device and an adjustment method for improving gas storage efficiency by adjusting the gas storage temperature to solve the problem that the temperature change of the high-pressure gas storage device during the charging and discharging process reduces the gas charging and discharging cycle volume of the gas storage device question.

(二)技术方案(2) Technical solutions

为了解决上述技术问题，本发明提一种通过调节储气温度提高储气效率的高压储气装置，其包括：储气室和换热组件；所述储气室气管通过阀门连接外部；所述换热组件包括：换热器，工质源和循环泵；所述换热器、工质源和循环泵通过管路循环相接。In order to solve the above technical problems, the present invention provides a high-pressure gas storage device that improves gas storage efficiency by adjusting the gas storage temperature, which includes: a gas storage chamber and a heat exchange component; the air pipe of the gas storage chamber is connected to the outside through a valve; the The heat exchange assembly includes: a heat exchanger, a working fluid source and a circulation pump; the heat exchanger, the working fluid source and the circulation pump are connected in circulation through pipelines.

在一些实施例中，优选为，所述储气室内设置测温元件。In some embodiments, preferably, a temperature measuring element is arranged in the gas storage chamber.

在一些实施例中，优选为，所述循环泵与所述测温元件电连接。In some embodiments, preferably, the circulation pump is electrically connected to the temperature measuring element.

在一些实施例中，优选为，所述的通过调节储气温度提高储气效率的高压储气装置还包括：控制器，所述测温元件和所述循环泵之间通过控制器连接。In some embodiments, preferably, the high-pressure gas storage device for improving gas storage efficiency by adjusting the gas storage temperature further includes: a controller, and the temperature measuring element is connected to the circulating pump through the controller.

在一些实施例中，优选为，所述储气室内设置测压元件，所述测压元件与所述控制器连接。In some embodiments, preferably, a load cell is provided in the gas storage chamber, and the load cell is connected to the controller.

在一些实施例中，优选为，所述换热器为盘管式换热器。In some embodiments, preferably, the heat exchanger is a coil heat exchanger.

本发明还提供了一种所述的通过调节储气温度提高储气效率的高压储气装置的调节方法，其包括：The present invention also provides a method for adjusting the high-pressure gas storage device to improve gas storage efficiency by adjusting the gas storage temperature, which includes:

储气室进气过程，测量储气室内气体温度；During the air intake process of the gas storage chamber, measure the gas temperature in the gas storage chamber;

当所述气体温度上升时，循环泵启动，换热工质通过换热组件对所述储气室内的气体进行降温；When the temperature of the gas rises, the circulation pump is started, and the heat exchange working medium cools down the gas in the gas storage chamber through the heat exchange assembly;

储气室放气过程，测量储气室内气体温度；During the deflation process of the gas storage chamber, measure the gas temperature in the gas storage chamber;

当所述气体温度下降时，循环泵启动，换热工质通过所述换热组件对所述储气室内的气体进行升温。When the temperature of the gas drops, the circulation pump is started, and the heat exchange working medium passes through the heat exchange assembly to raise the temperature of the gas in the gas storage chamber.

在一些实施例中，优选为，所述储气室进气过程，测量储气室内气体温度还包括：In some embodiments, preferably, the gas storage chamber air intake process, measuring the gas temperature in the gas storage chamber further includes:

测量储气室内气体压力；Measure the gas pressure in the gas storage chamber;

根据所述气体压力判断气体波动情况；Judging gas fluctuations according to the gas pressure;

则，but,

所述当所述气体温度上升时，循环泵启动，换热工质通过换热组件对所述储气室内的气体进行降温还包括：When the temperature of the gas rises, the circulation pump is started, and the heat exchange working medium cools down the gas in the gas storage chamber through the heat exchange assembly, which further includes:

根据所述气体波动情况调整所述循环泵中的换热工质流量。Adjusting the flow rate of the heat exchange working medium in the circulating pump according to the fluctuation of the gas.

在一些实施例中，优选为，所述储气室放气过程，测量储气室内气体温度还包括：In some embodiments, it is preferred that the step of measuring the gas temperature in the gas storage chamber during the gas storage chamber deflation process further includes:

测量储气室内气体压力；Measure the gas pressure in the gas storage chamber;

根据所述气体压力判断气体波动情况；Judging gas fluctuations according to the gas pressure;

则，but,

所述当所述气体温度下降时，循环泵启动，换热工质通过所述换热组件对所述储气室内的气体进行升温还包括：The step of starting the circulation pump when the temperature of the gas drops, and raising the temperature of the gas in the gas storage chamber with the heat exchange working medium through the heat exchange assembly also includes:

根据所述气体波动情况调整所述循环泵中的换热工质流量。Adjusting the flow rate of the heat exchange working medium in the circulating pump according to the fluctuation of the gas.

在一些实施例中，优选为，所述换热工质流量随气体波动情况的增大而增大。In some embodiments, preferably, the flow rate of the heat exchange working medium increases with the increase of the gas fluctuation.

(三)有益效果(3) Beneficial effects

本发明提供的技术方案，在储气室内设置换热组件，当储气室充气时，气压增大，温度提高，通过换热器将储气室内热量带走，维持储气室内温度的稳定，增加储气量；当储气室放气时，气压降低，温度下降，通过换热器将储气室内温度提高，维持储气室内温度的稳定，增加放气量，通过该原理解决储气装置因内部气体温度变化造成的储气、放气量减少的问题，提高单位储气空间循环量，提高储气装置的储气效率，进而能够显著提高工业应用中的全厂效率，最终促进经济效益的改善。In the technical solution provided by the present invention, heat exchange components are arranged in the gas storage chamber. When the gas storage chamber is inflated, the air pressure increases and the temperature increases, and the heat in the gas storage chamber is taken away by the heat exchanger to maintain the stability of the temperature in the gas storage chamber. Increase the gas storage capacity; when the gas storage chamber is deflated, the air pressure decreases and the temperature drops, and the temperature in the gas storage chamber is increased through the heat exchanger to maintain the stability of the temperature in the gas storage chamber and increase the amount of gas released. The reduction of gas storage and release volume caused by changes in gas temperature can increase the circulation volume of the unit gas storage space and the gas storage efficiency of the gas storage device, which in turn can significantly improve the efficiency of the whole plant in industrial applications, and ultimately promote the improvement of economic benefits.

附图说明Description of drawings

图1为本发明一个实施例中通过调节储气温度提高储气效率的高压储气装置的结构示意图。Fig. 1 is a schematic structural diagram of a high-pressure gas storage device that improves gas storage efficiency by adjusting the gas storage temperature in an embodiment of the present invention.

注：A：压力容器；B：换热器；C：工质源；D：循环泵。Note: A: pressure vessel; B: heat exchanger; C: working fluid source; D: circulation pump.

具体实施方式Detailed ways

下面结合附图和实施例，对本发明的具体实施方式作进一步详细描述。以下实例用于说明本发明，但不用来限制本发明的范围。The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

在本发明的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通。“第一”“第二”“第三”“第四”不代表任何的序列关系，仅是为了方便描述进行的区分。对于本领域的普通技术人员而言，可以具体情况理解上述术语在本发明中的具体含义。“当前”在执行某动作之时的时刻，文中出现多个当前，均为随时间流逝中实时记录。In the description of the present invention, it should be noted that unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, or integrally connected; it may be mechanically connected or electrically connected; it may be directly connected or indirectly connected through an intermediary, and it may be the internal communication of two components. "First", "second", "third" and "fourth" do not represent any sequence relationship, but are only distinguished for convenience of description. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention in specific situations. "Current" at the moment when an action is performed, multiple currents appear in the text, all of which are recorded in real time as time goes by.

由于目前高压气体储气装置在充放气过程中温度变化降低了储气装置的充放气循环量的问题，本发明给出以调节储气温度提高储气效率的高压储气装置及调节方法。Due to the problem that the temperature change of the current high-pressure gas storage device during the charging and deflation process reduces the cycle volume of the gas storage device, the present invention provides a high-pressure gas storage device and an adjustment method for improving gas storage efficiency by adjusting the gas storage temperature .

下面将通过基础设计、扩展设计及替换设计对产品、方法等进行详细描述。The products, methods, etc. will be described in detail below through basic design, extended design and replacement design.

一种通过调节储气温度提高储气效率的高压储气装置，如图1所示，其包括：储气室A和换热组件；储气室A气管通过阀门连接外部；换热组件包括：换热器B，工质源C和循环泵D；换热器B、工质源C和循环泵D通过管路循环相接。A high-pressure gas storage device that improves gas storage efficiency by adjusting the temperature of the gas storage, as shown in Figure 1, includes: a gas storage chamber A and a heat exchange assembly; the gas pipe of the gas storage chamber A is connected to the outside through a valve; the heat exchange assembly includes: Heat exchanger B, working fluid source C and circulation pump D; heat exchanger B, working fluid source C and circulation pump D are connected through pipeline circulation.

为了形成完整的储气系统，储气室A可选用压力容器，并设置安全阀、仪表等。换热工质自换热器B流过，在换热组件中循环流动，换热器B与储气室A内的气体进行热量交换，或将储气室A内的热量带走，或向储气室A内传递热量，以保持储气室A内的温度稳定。换热工质由工质源C供应。In order to form a complete gas storage system, the gas storage chamber A can be a pressure vessel and equipped with safety valves, instruments, etc. The heat exchange medium flows through the heat exchanger B and circulates in the heat exchange components. The heat exchanger B exchanges heat with the gas in the gas storage chamber A, or takes away the heat in the gas storage chamber A, or transfers it to Heat is transferred in the air storage chamber A to keep the temperature in the air storage chamber A stable. The heat exchange working fluid is supplied by working fluid source C.

通常情况下，封闭空间储气时，气压升高，温度升高，需要换热降温；放气时，气压降低，温度降低，需要换热升温。Normally, when storing gas in a closed space, the air pressure increases and the temperature rises, which requires heat exchange to cool down; when the air is released, the air pressure decreases and the temperature drops, requiring heat exchange to increase the temperature.

换热器B固定安装在储气室A的内部腔体里。换热工质在换热器B、工质源C和循环泵D中循环流动。The heat exchanger B is fixedly installed in the inner cavity of the gas storage chamber A. The heat exchange working medium circulates in the heat exchanger B, the working medium source C and the circulation pump D.

为了控制循环泵D的开启及换热工质流量，需要实时测量储气室A内的气温，所以储气室A内设置测温元件，比如温度传感器。循环泵D与测温元件连接，循环泵D根据测温元件获取的温度值确认温度变化趋势后驱动换热工质循环流动。In order to control the opening of the circulation pump D and the flow rate of the heat exchange working medium, it is necessary to measure the air temperature in the gas storage chamber A in real time, so a temperature measuring element, such as a temperature sensor, is installed in the gas storage chamber A. The circulating pump D is connected to the temperature measuring element, and the circulating pump D confirms the temperature change trend according to the temperature value obtained by the temperature measuring element, and then drives the heat exchange working fluid to circulate.

在一些实施例中，根据测温元件的温度值判断温度变化趋势，甚至循环泵D的启动、驱动方式都可以通过控制其完成。测温元件和循环泵D都与控制器连接，通过控制器对二者进行数据通信和控制。In some embodiments, the temperature change trend is judged according to the temperature value of the temperature measuring element, and even the starting and driving mode of the circulating pump D can be controlled. Both the temperature measuring element and the circulating pump D are connected with the controller, and the data communication and control are carried out through the controller.

随着充气方式的变化，气压的升高并非线性升高，会出现一定的波动，从而造成温度变化也并非线性改变，及时提取该波动情况，对应控制换热工质的流动量，才能更进一步调节储气室A内的温度。所以，储气室A内设置测压元件，测压元件与控制器连接，由控制器根据测压元件的测压值判断气压变化趋势，并进行换热工质流动量的调节。当波动较大时，流动量增大，波动小时，流动量减小。With the change of the inflation method, the increase of the air pressure is not linear, and there will be certain fluctuations, which will cause the temperature change to be non-linear. Only by extracting the fluctuations in time and correspondingly controlling the flow of the heat exchange working medium can we go further Adjust the temperature in the air storage chamber A. Therefore, a load cell is installed in the gas storage chamber A, and the load cell is connected to the controller. The controller judges the change trend of the air pressure according to the pressure value of the load cell, and adjusts the flow rate of the heat exchange working medium. When the fluctuation is large, the flow volume increases, and when the fluctuation is small, the flow volume decreases.

接下来给出一种通过调节储气温度提高储气效率的高压储气装置的调节方法，其包括：Next, an adjustment method for a high-pressure gas storage device that improves gas storage efficiency by adjusting the gas storage temperature is given, which includes:

储气室A进气过程，测量储气室A内气体温度；During the air intake process of the gas storage chamber A, measure the gas temperature in the gas storage chamber A;

当气体温度上升时，循环泵启动，换热工质通过换热组件对储气室A内的气体进行降温；When the temperature of the gas rises, the circulating pump starts, and the heat-exchanging working fluid cools down the gas in the gas storage chamber A through the heat-exchanging components;

储气室A放气过程，测量储气室A内气体温度；During the gas storage chamber A deflation process, measure the gas temperature in the gas storage chamber A;

当气体温度下降时，循环泵启动，换热工质通过换热组件对储气室A内的气体进行升温。When the temperature of the gas drops, the circulation pump is started, and the heat exchange working medium heats up the temperature of the gas in the gas storage chamber A through the heat exchange assembly.

考虑到气压变化对换热工质流动量的需求，上述调整方法可加入对气体压力的测量和相应调节：Considering the demand of air pressure change on the flow rate of heat exchange working medium, the above adjustment method can be added to the measurement of gas pressure and corresponding adjustment:

储气换热：Gas storage heat exchange:

向储气室A内进气，测量储气室A内气体温度；测量储气室A内气体压力；根据气体压力判断气体波动情况；Intake air into the gas storage chamber A, measure the gas temperature in the gas storage chamber A; measure the gas pressure in the gas storage chamber A; judge the gas fluctuation according to the gas pressure;

当气体温度上升时，通过换热组件对储气室A内的气体进行降温；并根据气体波动情况调整循环泵中的换热工质流量，当波动较明显，属于大波动时，则增大换热工质流量，当波动变小，属于小波动时，则减小换热工质流量。When the gas temperature rises, the gas in the gas storage chamber A is cooled by the heat exchange component; and the flow rate of the heat exchange working medium in the circulating pump is adjusted according to the gas fluctuation. When the fluctuation is obvious and belongs to a large fluctuation, increase it When the flow rate of heat exchange working medium becomes smaller and belongs to small fluctuation, then reduce the flow rate of heat exchange working medium.

放气换热：Exhaust and heat exchange:

从储气室A内进行放气，测量储气室A内气体温度；测量储气室A内气体压力；根据气体压力判断气体波动情况；Deflate from the gas storage chamber A, measure the gas temperature in the gas storage chamber A; measure the gas pressure in the gas storage chamber A; judge the gas fluctuation according to the gas pressure;

当气体温度下降时，通过换热组件对储气室A内的气体进行升温；并根据气体波动情况调整循环泵中的换热工质流量，当波动较明显，属于大波动时，则增加换热工质流量，当波动变小，属于小波动时，则减小换热工质流量。When the gas temperature drops, the gas in the gas storage chamber A is heated up through the heat exchange component; and the flow rate of the heat exchange working medium in the circulating pump is adjusted according to the gas fluctuation. When the fluctuation of the thermal working medium flow becomes smaller and belongs to small fluctuations, then reduce the heat exchange working medium flow.

本发明提供的一种通过调节储气温度提高储气效率的高压储气装置和调节方法，采用技术成熟的压力容器技术和管式换热技术，将储气室A和换热器B组成储气系统，便于加工和应用；通过监测气体参数对换热器B内换热工质流量进行控制，实现高压气体充放气循环过程中对气温波动的平稳控制；控制充放气过程中储气室内气温的变化，有助于提高单位储气空间循环量，即提高储气装置的储气效率，进而能够显著提高工业应用及压缩空气储能系统中的全厂效率，最终促进经济效益的改善。The present invention provides a high-pressure gas storage device and adjustment method for improving gas storage efficiency by adjusting the gas storage temperature, using mature pressure vessel technology and tubular heat exchange technology to form a gas storage chamber A and a heat exchanger B The gas system is convenient for processing and application; by monitoring the gas parameters, the flow rate of the heat exchange working fluid in the heat exchanger B is controlled to realize the stable control of the temperature fluctuation during the high-pressure gas charging and discharging cycle; control the gas storage during the charging and discharging process The change of indoor temperature helps to increase the circulation volume of the unit gas storage space, that is, to improve the gas storage efficiency of the gas storage device, which in turn can significantly improve the efficiency of the whole plant in industrial applications and compressed air energy storage systems, and ultimately promote the improvement of economic benefits .

以上所述仅为本发明的较佳实施例而已，并不用以限制本发明，凡在本发明的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the scope of the present invention. within the scope of protection.

Claims (10)

  1. A kind of 1. high-pressure gas device that gas storage efficiency is improved by adjusting gas storage temperature, it is characterised in that including：Air storage chamber and Heat-exchanging component；The air storage chamber tracheae is connected by valve with the external world；The heat-exchanging component includes：Heat exchanger, working medium source and is followed Ring pump；The heat exchanger, working medium source and circulating pump are connected by pipeline circulation.
  2. 2. the high-pressure gas device of gas storage efficiency is improved by adjusting gas storage temperature as claimed in claim 1, it is characterised in that Temperature element is set in the air storage chamber.
  3. 3. the high-pressure gas device of gas storage efficiency is improved by adjusting gas storage temperature as claimed in claim 2, it is characterised in that The circulating pump electrically connects with the temperature element.
  4. 4. the high-pressure gas device of gas storage efficiency is improved by adjusting gas storage temperature as claimed in claim 3, it is characterised in that Also include：Controller, connected between the temperature element and the circulating pump by controller.
  5. 5. the high-pressure gas device of gas storage efficiency is improved by adjusting gas storage temperature as claimed in claim 4, it is characterised in that Load cell is set in the air storage chamber, and the load cell is connected with the controller.
  6. 6. the high-pressure gas device of gas storage efficiency is improved by adjusting gas storage temperature as claimed in claim 1, it is characterised in that The heat exchanger is coil exchanger.
  7. A kind of 7. high-pressure gas device that gas storage efficiency is improved by adjusting gas storage temperature described in any one of claim 1-6 Adjusting method, it is characterised in that including：
    Air storage chamber intake process, measure gas temperature in air storage chamber；
    When the gas temperature rises, pump startup is circulated, heat-exchange working medium is by heat-exchanging component to the gas in the air storage chamber Cooled；
    Air storage chamber deflation course, measure gas temperature in air storage chamber；
    When the gas temperature declines, pump startup is circulated, heat-exchange working medium is by the heat-exchanging component in the air storage chamber Gas is heated up.
  8. 8. adjusting method as claimed in claim 7, it is characterised in that the air storage chamber intake process, measure gas storage Indoor Air Temperature also includes：
    Measure gas storage gas pressure inside；
    Gas pulsation situation is judged according to the gas pressure；
    Then,
    It is described when the gas temperature rises, circulate pump startup, heat-exchange working medium is by heat-exchanging component in the air storage chamber Gas, which is cooled, also to be included：
    The heat-exchange working medium flow of the circulating pump is adjusted according to the gas pulsation situation.
  9. 9. adjusting method as claimed in claim 7, it is characterised in that the air storage chamber deflation course, measure gas storage Indoor Air Temperature also includes：
    Measure gas storage gas pressure inside；
    Gas pulsation situation is judged according to the gas pressure；
    Then,
    When the gas temperature declines, pump startup is circulated, heat-exchange working medium is by the heat-exchanging component in the air storage chamber Gas, which is heated up, also to be included：
    Heat-exchange working medium flow in the circulating pump is adjusted according to the gas pulsation situation.
  10. 10. adjusting method as claimed in claim 8 or 9, it is characterised in that the heat-exchange working medium flow is with gas pulsation situation Increase and increase.
CN201711049425.1A 2017-10-31 2017-10-31 To adjust the high-pressure gas device and adjusting method that gas storage temperature improves gas storage efficiency Pending CN107795847A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111720728A (en) * 2020-05-15 2020-09-29 厚普清洁能源股份有限公司 Pressure-limiting gas filling system and filling method
CN112443477A (en) * 2020-11-26 2021-03-05 安徽信息工程学院 Island air energy storage system
CN113483352A (en) * 2021-07-08 2021-10-08 山东劳动职业技术学院（山东劳动技师学院） Air compression combustion system with variable compression ratio

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5644921A (en) * 1996-05-22 1997-07-08 Air Products And Chemicals, Inc. Ultra high purity delivery system for liquefied compressed gases
EP0792671A1 (en) * 1996-02-23 1997-09-03 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Bulk delivery of ultra-high purity gases at high flow rates
CN203717158U (en) * 2014-01-29 2014-07-16 华北电力大学（保定） Adiabatic compression air storage power generation system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0792671A1 (en) * 1996-02-23 1997-09-03 L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude Bulk delivery of ultra-high purity gases at high flow rates
US5644921A (en) * 1996-05-22 1997-07-08 Air Products And Chemicals, Inc. Ultra high purity delivery system for liquefied compressed gases
CN203717158U (en) * 2014-01-29 2014-07-16 华北电力大学（保定） Adiabatic compression air storage power generation system

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111720728A (en) * 2020-05-15 2020-09-29 厚普清洁能源股份有限公司 Pressure-limiting gas filling system and filling method
CN111720728B (en) * 2020-05-15 2021-11-02 厚普清洁能源股份有限公司 Pressure-limiting gas filling system and filling method
CN112443477A (en) * 2020-11-26 2021-03-05 安徽信息工程学院 Island air energy storage system
CN113483352A (en) * 2021-07-08 2021-10-08 山东劳动职业技术学院（山东劳动技师学院） Air compression combustion system with variable compression ratio

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