WO2011127782A1 - 一种新型环保制冷剂 - Google Patents
一种新型环保制冷剂 Download PDFInfo
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- WO2011127782A1 WO2011127782A1 PCT/CN2011/072149 CN2011072149W WO2011127782A1 WO 2011127782 A1 WO2011127782 A1 WO 2011127782A1 CN 2011072149 W CN2011072149 W CN 2011072149W WO 2011127782 A1 WO2011127782 A1 WO 2011127782A1
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- propane
- tetrahydrothiophene
- refrigerant
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K5/00—Heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants; Materials for the production of heat or cold by chemical reactions other than by combustion
- C09K5/02—Materials undergoing a change of physical state when used
- C09K5/04—Materials undergoing a change of physical state when used the change of state being from liquid to vapour or vice versa
- C09K5/041—Materials undergoing a change of physical state when used the change of state being from liquid to vapour or vice versa for compression-type refrigeration systems
- C09K5/042—Materials undergoing a change of physical state when used the change of state being from liquid to vapour or vice versa for compression-type refrigeration systems comprising compounds containing carbon and hydrogen only
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K2205/00—Aspects relating to compounds used in compression type refrigeration systems
- C09K2205/10—Components
- C09K2205/134—Components containing sulfur
Definitions
- the present invention relates to a refrigerant, and more particularly to an environmentally friendly refrigerant which can replace R22. Background technique
- Freon such as R22, which is now widely used
- Freon has a destructive effect on the atmospheric ozone layer and has a strong greenhouse effect
- it is a refrigerant that needs to be replaced
- some natural sources such as R600a (isobutane) and R290 (propane)
- R600a isobutane
- R290 propane
- the natural compounds present in the system, which do not destroy the atmospheric ozone layer and cause global warming, are environmentally-friendly refrigerants.
- These refrigerants are being investigated for use in refrigeration systems.
- R600a is considered to be a refrigerant used in applications with lower cooling temperatures (such as electric water tanks), while R290 is considered for use in air conditioning systems to replace the current large-scale use.
- R22 refrigerant is considered to be a refrigerant used in applications with lower cooling temperatures (such as electric water tanks), while R290 is considered for use in air conditioning systems to replace the current large-scale use.
- R290 is a flammable and explosive refrigerant.
- a refrigerant leaks, a fire or explosion may occur. Therefore, it is necessary to add an alarm gas to the refrigerant.
- the refrigerant leaks from the air conditioner, the user can perceive the time. In order to take corresponding measures, it is possible to further add other substances, and a new refrigerant with a higher explosion limit can be obtained, thereby reducing the risk of explosion when leaking.
- the Chinese Patent Publication No. CN1740262 invention patent provides a refrigerant comprising three components of propane R290, isobutane R600a and tetrahydrothiophene THT, wherein tetrahydrogen P- cetin THT has an odor.
- isobutane R600a is not suitable for use in air conditioning refrigeration cycle, the refrigerant provided by the patent application has a lower refrigeration effect, and tetrahydrothiophene THT is slightly soluble in isobutane R600a, so that once a leak occurs When tetrahydrothiophene leaks less, it is highly probable that it will not alert the user due to insufficient leakage.
- the present invention proposes a novel environmentally-friendly refrigerant which allows a user to smell the smell in time when a refrigerant leak occurs in the air conditioner.
- the invention provides a novel environmentally friendly refrigerant, including propane and tetrahydrothiophene, wherein the mass percentage of propane is
- the mass percentage of tetrahydrothiophene is 0.3 to 5%, and the proportion of the refrigerant can cause the user to immediately smell the odor when a leak occurs.
- the mass percentage of propane is 96 to 99.7%, and the mass percentage of tetrahydrothiophene is 0.3 to 5%. Further, the mass percentage of propane is 97 to 99.7%, and the mass percentage of tetrahydrothiophene is 0.3 to 3%. Further, the mass percentage of propane is 98 to 99.7%, and the mass percentage of tetrahydrothiophene is 0.3 to 2%. Further, the mass percentage of propane is 99 to 99.7%, and the mass percentage of tetrahydrothiophene is 0.3 to 1%. Further, the mass percentage of propane is 99.4 to 99.6%, and the mass percentage of tetrahydrothiophene is 0.4 to 0.6%. Further, the mass percentage of propane is 99.5%, and the mass percentage of tetrahydrothiophene is 0.5%.
- novel refrigerants propane and tetrahydro-p plug Yu further comprising R410a, R32, R22, R125, R143, R245 combination of one or more of
- the new refrigerant include propane, R410a, tetrahydrothiophene, wherein the mass percentage of 95 ⁇ 97.2% propane, the mass percentage of R410a is 2.5 ⁇ 4.7%, p tetrahydro mass percentage of the plug-evident 0.3 ⁇ 0.7% .
- the novel refrigerant includes propane, R32, and tetrahydrothiophene, wherein the mass percentage of propane is 95-97.2%, the mass percentage of R32 is 2.5 to 4.7%, and the mass percentage of tetrahydrothiophene is 0.3 to 0.7%.
- the novel refrigerant includes propane, R22, tetrahydrothiophene, wherein the mass percentage of propane is 95-97.2%, the mass percentage of R22 is 2.5 to 4.7%, and the mass percentage of tetrahydrothiophene is 0.3 to 0.7%.
- the novel refrigerant includes propane, R125, tetrahydrothiophene, wherein the mass percentage of propane is 95-97.2%, the mass percentage of R125 is 2.5 to 4.7%, and the mass percentage of tetrahydrothiophene is 0.3 to 0.7%. .
- the novel refrigerant includes propane, R143, and tetrahydrothiophene, wherein the mass percentage of propane is 95-97.2%, the mass percentage of R143 is 2.5 to 4.7%, and the mass percentage of tetrahydrothiophene is 0.3 to 0.7%. .
- the novel refrigerant includes propane, R245, and tetrahydrothiophene, wherein the mass percentage of propane is 95-97.2%, the mass percentage of R245 is 2.5 to 4.7%, and the mass percentage of tetrahydrothiophene is 0.3 to 0.7%. .
- the present invention also provides an air conditioner to which a refrigerant formulated in any of the foregoing ratios is applied.
- the air conditioner further includes a propane detector, the probe of the propane detector is disposed at the air outlet of the air conditioner, and the control portion of the propane detector is integrated in the controller of the air conditioner.
- the novel environmentally friendly refrigerant according to the present invention can be applied to an air conditioning system and has a good effect.
- a refrigerant leaks in an air conditioner, since the tetrahydrothiophene THT has a strong unpleasant odor, the user can perceive in the first time.
- the refrigerant is leaking, and take corresponding measures, such as opening the window to ventilate, turn off the fire source, etc., thereby protecting the safety of people's property.
- Embodiment 1 is a diagrammatic representation of Embodiment 1:
- the refrigerant is composed of 99.5% by mass of propane R290 and 0.5% of tetrahydrothiophene THT.
- the vacuum tank was filled with 199 g of R290, and the tank was filled with lg of tetrahydrothiophene using a medical syringe, and the mixture was naturally mixed for more than 30 minutes, and the mouth was opened to smell the odor, which proved to be sufficiently mixed.
- the working medium used in the first embodiment was prepared by using 99.5% of propane and 0.5% of tetrahydrothiophene.
- the refrigeration efficiency of the air conditioner is superior to that of R22.
- Embodiment 2 is a diagrammatic representation of Embodiment 1:
- the second embodiment of the present invention provides a novel refrigerant which is prepared from 95% by mass of propane and 5% of tetrahydrothiophene.
- Embodiment 3 is a diagrammatic representation of Embodiment 3
- a novel refrigerant is provided which is composed of 99.7% propane and 0.3% tetrahydrothiophene.
- the refrigeration capacity is comparable to that of the first embodiment, but in the leak test, the human body can only feel a lighter odor at 5 m.
- Embodiment 4 is a diagrammatic representation of Embodiment 4:
- the refrigerant is provided by 95.6% by mass of propane R290 and 3.9% of R410a. And 0.5% tetrahydrothiophene THT.
- R410a is a non-azeotropic refrigerant that does not contain chlorine. It does not destroy the ozone layer. It is not combustible by itself. At present, R410a refrigerant has been widely used in refrigeration industries such as air conditioners.
- a vacuum tank was taken, followed by 191.2 g of propane, lg of tetrahydrothiophene, and 7.8 g of R410a.
- tetrahydrothiophene is liquid at normal temperature, and tetrahydrothiophene can be charged into a vacuum tank using a medical syringe. Wait for more than 1 hour after filling to ensure that tetrahydrothiophene can fully evaporate. A small amount of mixed material can be released by opening the wide door. If a strong odor can be smelled, it is proved that tetrahydrothiophene has sufficiently volatilized.
- the lower explosion limit of the new refrigerant configured according to the above ratio is tested, and the lower explosion limit is 3.38%, which is higher than the pure lower limit of 2.1% of the R290, thus reducing the safety hazard.
- the new refrigerant of the fourth embodiment is applied to the original R290-specific air conditioning system. Although the system pressure of the R410a is relatively high, the air conditioner is stable because the air pressure is not affected, and the air conditioner operates stably.
- the new refrigerant of the first embodiment can communicate with the R290 system on system components.
- Embodiment 5 is a diagrammatic representation of Embodiment 5:
- a novel refrigerant according to a fifth embodiment of the present invention is prepared from 95% by mass of propane, 4.5% of R410a and 0.5% of tetrahydrothiophene.
- a novel refrigerant according to a fifth embodiment of the present invention is disposed in the same manner as in the fourth embodiment.
- the lower limit of the explosion of the novel refrigerant of the fifth embodiment of the present invention is tested, and the lower explosion limit is 6.5%.
- the new refrigerant is used in the original R290-dedicated air-conditioning system, and the air-conditioning operation is stable. Therefore, the components of the air-conditioning system of the new refrigerant of the fifth embodiment are used to communicate with the air-conditioning system of the R290.
- a novel refrigerant is provided which is composed of 97% propane, 2.5% R410a and 0.5% tetrahydrothiophene.
- the new refrigerant of the sixth embodiment of the present invention has a lower explosion limit of 2.9%, which is also improved compared with R290, and according to the same leak test as in the fourth embodiment, the human body can still feel strong odor at 5 m.
- Example 7 According to a seventh embodiment of the present invention, a novel refrigerant is provided which is composed of 95% propane, 4.5% R32, and 0.5% tetrahydrothiophene.
- the configuration method is the same as that described in the fourth embodiment.
- the lower explosion limit is 3.3%, which is higher than that of R290, and according to the same leak test as in the fourth embodiment, the human body can still feel strong odor at 5 m.
- a novel refrigerant is provided which is composed of 95% of propane, 4.5% of R22, and 0.5% of tetrahydrothiophene.
- the configuration method is the same as that described in the fourth embodiment.
- R22 is a relatively mature work currently in use, non-flammable, but it will cause a greenhouse effect.
- the new refrigerant of the eighth embodiment of the present invention has a lower explosion limit of 5.3%, which is significantly improved compared with R290, and according to the same leak test as in the fourth embodiment, the human body can still feel strong odor at 5 m.
- a novel refrigerant is provided which is composed of 95% of propane, 4.5% of R125, and 0.5% of tetrahydrothiophene.
- the configuration method is the same as that described in the fourth embodiment.
- Pentafluoroethane R125 itself is flame retardant and can coexist stably with R290.
- the novel refrigerant of the ninth embodiment of the present invention has a lower explosion limit of 9.6%, which is significantly improved compared with R290, and according to the same leak test as in the fourth embodiment, the human body can still feel strong odor at 5 m.
- a novel refrigerant is provided which is composed of 95% of propane, 4.5% of R143, and 0.5% of tetrahydrothiophene.
- the configuration method is the same as that described in the fourth embodiment.
- Trifluoroethane R143 itself is flame retardant and can coexist stably with R290.
- the air conditioner of the novel refrigerant provided in Embodiment 10 has a system evaporation pressure of 483 kPa, a condensing pressure of 1180 kPa, a compressor discharge temperature of 116 ° C, a system COP of 4.8, and an air conditioning system that is stable in operation and good in performance.
- the novel refrigerant of the tenth embodiment of the present invention has a lower explosion limit of 10.6%, which is significantly improved compared with R290, and according to the same leak test as in the fourth embodiment, the human body can still feel strong odor at 5 m.
- a novel refrigerant which is composed of 95% of propane, 4.5% of R245eb, and 0.5% of tetrahydrothiophene.
- the configuration method is the same as that described in the fourth embodiment.
- Pentafluoropropane R245eb itself is flame retardant and can coexist stably with R290.
- the air conditioner of the novel refrigerant provided in the eleventh embodiment has a system evaporation pressure of 552 kPa, a condensing pressure of 1831 kPa, a compressor discharge temperature of 154 ° C, and a system COP of 3.32, and the air conditioning system is stable in operation and good in performance.
- the novel refrigerant of the eleventh embodiment of the present invention has a lower explosion limit of 9.4%, which is significantly improved compared with R290, and according to the same leak test as in the fourth embodiment, the human body can still feel strong odor at 5 m.
- a novel refrigerant comprising 95% of propane, 2.5% of R410a, 2% of R22 and 0.5% of tetrahydrothiophene.
- the method is as follows: taking a vacuum tank, and sequentially charging 190 g of propane, lg tetrahydrothiophene, 5 g R410a, 4 g R22, wherein tetrahydrothiophene is liquid at normal temperature, and can be filled into a vacuum tank with a medical syringe, after waiting for more than 1 hour, Then, R410a and R22 are charged in order.
- the system pressure of R410a is higher, while the system pressure of R22 is lower.
- the novel refrigerant of the twelfth embodiment of the present invention has a lower explosion limit of 5.7%, which is significantly improved compared with R290, and according to the same leak test as in the fourth embodiment, the human body can still feel strong odor at 5 m.
- a propane detector may be disposed on the air conditioner, the probe of the propane detector is disposed at the air outlet of the air conditioner, and the control program of the propane detector is integrated in the air conditioner.
- the propane detector can detect that when the propane reaches the concentration of the lower electrode of the explosion, an alarm sounds through the controller. In this way, when the room is separately set, the user does not smell the air conditioner in a certain room, and can alert the user that the air conditioner has a leak failure by the alarm sound of the air conditioner itself.
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Description
一种新型环保制冷剂
技术领域
本发明涉及一种制冷剂， 尤其涉及一种可以替代 R22的环保制冷剂。 背景技术
由于氟利昂类 （如现在大量使用的 R22 )制冷剂对大气臭氧层有破坏作用且具有较强 的温室效应， 属于需要被替代的制冷剂， 而 R600a (异丁烷）、 R290 (丙烷） 等一些自然 界中存在的天然化合物， 既不会破坏大气臭氧层， 又不导致全球变暖， 属于环境完全友好 型制冷剂。 这些制冷剂正被开始研究用于制冷系统中， 例如 R600a被认为是在制冷温度较 低场合（如电水箱）应用的制冷剂， 而 R290则被考虑用于空调系统用于替代目前大量使 用的 R22制冷剂。 但是 R290属于可燃可爆型制冷剂， 当发生制冷剂泄漏时， 有可能发生 着火或爆炸事件， 所以需要对于该制冷剂加入警觉气体， 当空调器发生制冷剂泄漏时， 可 以使用户及时感知到， 以釆取相应的措施， 还可以进一步加入其他物质， 可以得到更高的 爆炸下限的新型制冷剂， 降低泄漏时发生爆炸的危险性。
经过对现有文献的检索发现， 中国专利公开号为 CN1740262的发明专利， 其提供了一 种制冷剂包括丙烷 R290、 异丁烷 R600a、 四氢噻吩 THT三种组分的制冷剂， 其中四氢 p塞 吩 THT具有臭味。 但由于异丁烷 R600a其性质并不适于在空调制冷循环中使用， 应用所 查专利提供的制冷剂， 其制冷效果较低， 且四氢噻吩 THT微溶于异丁烷 R600a, 使一旦发 生泄漏时四氢噻吩的泄漏量更少， 极有可能由于泄漏量不足而无法起到警示用户的作用。 发明内容
为了解决上述问题， 本发明提出了一种新型环保制冷剂， 可以在空调器发生制冷剂泄 漏时， 使用户可以通过嗅觉及时闻到。
本发明提供了一种新型环保制冷剂， 包括丙烷及四氢噻吩， 其中丙烷的质量百分比为
95〜99.7% , 四氢噻吩的质量百分比为 0.3〜5% , 按此比例配比的制冷剂， 可以在发生泄漏 时使用户可以立刻闻到气味。
进一步的， 丙烷的质量百分比为 96〜99.7%, 四氢噻吩的质量百分比为 0.3〜5%。 进一步的， 丙烷的质量百分比为 97〜99.7%, 四氢噻吩的质量百分比为 0.3〜3%。 进一步的， 丙烷的质量百分比为 98〜99.7%, 四氢噻吩的质量百分比为 0.3〜2%。 进一步的， 丙烷的质量百分比为 99〜99.7%, 四氢噻吩的质量百分比为 0.3〜1%。
进一步的， 丙烷的质量百分比为 99.4〜99.6% , 四氢噻吩的质量百分比为 0.4〜0.6%。 进一步的， 丙烷的质量百分比为 99.5%, 四氢噻吩的质量百分比为 0.5%。
进一步的， 该新型制冷剂除了丙烷和四氢 p塞喻， 还包括 R410a、 R32、 R22、 R125、 R143、 R245的其中一种或多种的组合
进一步的， 该新型制冷剂包括丙烷、 R410a、 四氢噻吩， 其中丙烷的质量百分比为 95〜97.2%, R410a的质量百分比为 2.5〜4.7%, 四氢 p塞喻的质量百分比为 0.3〜0.7%。
进一步的， 该新型制冷剂包括丙烷、 R32、 四氢噻吩， 其中丙烷的质量百分比为 95-97.2%, R32的质量百分比为 2.5〜4.7% , 四氢噻吩的质量百分比为 0.3〜0.7%。
进一步的， 该新型制冷剂包括丙烷、 R22、 四氢噻吩， 其中丙烷的质量百分比为 95-97.2%, R22的质量百分比为 2.5〜4.7% , 四氢噻吩的质量百分比为 0.3〜0.7%。
进一步的， 该新型制冷剂包括丙烷、 R125、 四氢噻吩， 其中丙烷的质量百分比为 95-97.2%, R125的质量百分比为 2.5〜4.7% , 四氢噻吩的质量百分比为 0.3〜0.7%。。
进一步的， 该新型制冷剂包括丙烷、 R143、 四氢噻吩， 其中丙烷的质量百分比为 95-97.2%, R143的质量百分比为 2.5〜4.7% , 四氢噻吩的质量百分比为 0.3〜0.7%。。
进一步的， 该新型制冷剂包括丙烷、 R245、 四氢噻吩， 其中丙烷的质量百分比为 95-97.2%, R245的质量百分比为 2.5〜4.7% , 四氢噻吩的质量百分比为 0.3〜0.7%。。
同时， 本发明还提供了一种空调器， 应用了按前述任一种比例配制的制冷剂。
进一步的， 空调器还包括丙烷探测器， 丙烷探测器的探头设置于空调器出风口处， 丙 烷探测器的控制部集成在所述空调器的控制器中。
在根据本发明的新型环保制冷剂， 可以应用于空调系统中并起到良好的效果， 当空调 器发生制冷剂泄漏时， 由于四氢噻吩 THT具有浓烈的不愉快气味，用户可以在第一时间感 知到制冷剂在泄漏， 并釆取相应的措施， 如开窗通风， 关闭火源等， 从而保护人民财产安 全。 具体实施方式
实施例一：
本发明的第一个实施例， 提供的制冷剂由 99.5%质量百分比的丙烷 R290和 0.5%的四 氢噻吩 THT组成。
在进行制冷剂的配比之前， 先要掌握四氢噻吩 THT的挥发特性， 在温度为 20°C的封 闭环境下， 用医用注射器分别取 lg、 2g的 THT滴在硬质金属板上观察挥发情况， 并记录
实验结论， lg的四氢噻吩完全挥发用时为 10分钟， 2g的四氢噻吩完全挥发用时为 46分 钟。
首先向真空罐中充入 199g的 R290, 再使用医用注射器向罐中充入 lg的四氢噻吩，等 待自然混合 30分钟以上， 打开瓶口可以闻到臭味， 证明已经充分混合。
再釆用同一机型， 向空调系统中充入该新型制冷剂， 并与传统 R22进行对比， 具体数 值表如下：
本实施例 1所釆用的工质为 99.5%的丙烷和 0.5%的四氢噻吩配制而成。
由上表可见， 釆用本实施例 1的制冷剂， 其空调的制冷效率要优与 R22。
运行 8小时后，在室内蒸发器的折弯处开 0.5mm长度的裂口，人体在距离出风口 1.5m,
3m, 5m的位置分别进行感知实验， 记录实验结果， 人体在 5m的范围内均可以明显感受 到浓烈的臭味， 证明新型制冷剂在空调器运行中， 一旦发生泄漏， 其中的四氢噻吩 THT 分份， 仍可以及时随制冷剂释放到空气中。
实施例二：
本发明的第二实施例提供的新型制冷剂， 由 95%质量百分比的丙烷和 5%的四氢噻吩 配制而成。
釆用本发明第二实施例的新型制冷剂， 其制冷能力稍有下降， 其泄漏实险仍可以闻到 浓烈的臭味。
实施例三：
本发明的第三实施例， 提供一种新型制冷剂， 由 99.7%的丙烷和 0.3%的四氢噻吩配置 而成。
釆用本发明第三实施例的新型制冷剂， 其制冷能力与第一实施例相当无几， 但在泄漏 实验中， 5m处人体仅能感受到较淡的臭味。
实施例四：
本发明的第四个实施例，提供的制冷剂由 95.6%质量百分比的丙烷 R290、3.9%的 R410a
和 0.5%的四氢噻吩 THT组成。 R410a是一种不含氯元素的非共沸制冷剂， 不破坏臭氧层， 同是其本身不可燃， 目前 R410a制冷剂已广泛应用在空调等制冷行业中。
取一真空罐， 先后依次充入 191.2g的丙烷， lg的四氢噻吩， 7.8g的 R410a。 其中四氢 噻吩常温下为液态， 可釆用医用注射器将四氢噻吩充到至真空罐中。 充入完毕后待 1小 时以上， 以确保四氢噻吩能够充分挥发。 可以通过打开阔门放出少量混合后的物质， 若可 以闻到浓烈臭味， 证明四氢噻吩已经充分挥发。
测试按照上述比例配置的新型制冷剂的爆炸下限， 其爆炸下限达到 3.38% , 较纯的 R290的爆炸下限 2.1 %要高， 从而降低了安全隐患。
将釆用实施例四的新型制冷剂应用在原 R290专用的空调系统中， 虽然 R410a的系统 压力较高， 但由于只是少量加入， 并没有影响空调系统的稳定性， 空调器稳定运行， 故釆 用实施例一的新型制冷剂在系统零部件上可以与 R290系统的互通。
运行 8小时后，在室内蒸发器的折弯处开 0.5mm长度的裂口，人体在距离出风口 1.5m, 3m, 5m的位置分别进行感知实验， 记录实验结果， 人体在 5m的范围内均可以明显感受 到浓烈的臭味， 证明新型制冷剂在空调器运行中， 一旦发生泄漏， 其中的四氢噻吩 THT 分份， 仍可以及时随制冷剂释放到空气中。
实施例五：
本发明的第五实施例提供的新型制冷剂， 由 95%质量百分比的丙烷、 4.5%的 R410a和 0.5%的四氢噻吩配制而成。
釆用本发明第五实施例的新型制冷剂， 其配置方法及顺序同实施例四， 对本发明第五 实施例的新型制冷剂进行爆炸下限的测试， 其爆炸下限达到 6.5%。 将该新型制冷剂就用于 原 R290专用的空调系统， 空调运行平稳， 故釆用实施例五的新型制冷剂的空调系统的零 部件， 与 R290的空调系统上互通的。
釆用本发明第五实施例的新型制冷剂，通过与实施例四相同的泄漏实验可知，其在 5m 远处人体仍可以感受到较浓的臭味。
实施例六：
本发明的第六实施例， 提供一种新型制冷剂， 由 97%的丙烷、 2.5%的 R410a和 0.5% 的四氢噻吩配置而成。
釆用本发明第六实施例的新型制冷剂， 其爆炸下限为 2.9%, 较 R290也有所提高， 且 依据其与实施例四相同的泄漏实验， 5m处人体仍可以感受到浓烈臭味。
实施例七：
本发明的第七实施例， 提供一种新型制冷剂， 由 95%的丙烷、 4.5%的 R32、 0.5%的四 氢噻吩配置而成。 配置方法与实施例四所述的方法相同。
釆用本发明第七实施例的新型制冷剂， 其爆炸下限为 3.3%, 较 R290有所提高， 且依 据其与实施例四相同的泄漏实验， 5m处人体仍可以感受到浓烈臭味。
实施例八：
本发明的第七实施例， 提供一种新型制冷剂， 由 95%的丙烷、 4.5%的 R22、 0.5%的四 氢噻吩配置而成。 配置方法与实施例四所述的方法相同。 R22是目前应用的比较成熟的工 质， 不可燃， 但会造成温室效应。
釆用本发明第八实施例的新型制冷剂， 其爆炸下限为 5.3%, 较 R290有明显提高， 且 依据其与实施例四相同的泄漏实验， 5m处人体仍可以感受到浓烈臭味。
实施例九：
本发明的第九实施例， 提供一种新型制冷剂， 由 95%的丙烷、 4.5%的 R125、 0.5%的 四氢噻吩配置而成。 配置方法与实施例四所述的方法相同。 五氟乙烷 R125本身具有阻燃 性， 且可以与 R290稳定共存。
釆用本发明第九实施例的新型制冷剂， 其爆炸下限为 9.6%, 较 R290有明显提高， 且 依据其与实施例四相同的泄漏实验， 5m处人体仍可以感受到浓烈臭味。
实施例十：
本发明的第十实施例， 提供一种新型制冷剂， 由 95%的丙烷、 4.5%的 R143、 0.5%的 四氢噻吩配置而成。 配置方法与实施例四所述的方法相同。 三氟乙烷 R143本身具有阻燃 性， 且可以与 R290稳定共存。
应用实施例十提供的新型制冷剂的空调器， 其系统蒸发压力为 483kpa, 冷凝压力为 1180kpa, 压缩机排气温度为 116°C , 系统 COP达到 4.8 , 空调系统运行稳定， 性能良好。
釆用本发明第十实施例的新型制冷剂， 其爆炸下限为 10.6% , 较 R290有明显提高， 且依据其与实施例四相同的泄漏实验， 5m处人体仍可以感受到浓烈臭味。
实施例十一：
本发明的第十一实施例， 提供一种新型制冷剂， 由 95%的丙烷、 4.5%的 R245eb、 0.5% 的四氢噻吩配置而成。 配置方法与实施例四所述的方法相同。 五氟丙烷 R245eb本身具有 阻燃性， 且可以与 R290稳定共存。
应用实施例十一提供的新型制冷剂的空调器， 其系统蒸发压力为 552kpa, 冷凝压力为 1831kpa, 压缩机排气温度为 154°C , 系统 COP达到 3.32, 空调系统运行稳定， 性能良好。
釆用本发明第十一实施例的新型制冷剂， 其爆炸下限为 9.4%, 较 R290有明显提高， 且依据其与实施例四相同的泄漏实验， 5m处人体仍可以感受到浓烈臭味。
实施例十二：
本发明的第十二实施例， 提供一种新型制冷剂， 由 95%的丙烷、 2.5%的 R410a、 2%的 R22及 0.5%的四氢噻吩配置而成。 配置方法为取真空罐， 依次充入 190g丙烷， lg四氢噻 吩、 5gR410a、 4gR22, 其中四氢噻吩常温下为液态，可釆用医用注射器将其充入真空罐中， 待 1小时以上后， 再依次充入 R410a和 R22。 R410a的系统压力较高， 而 R22的系统压力 较低。
釆用本发明第十二实施例的新型制冷剂， 其爆炸下限为 5.7%, 较 R290有明显提高， 且依据其与实施例四相同的泄漏实验， 5m处人体仍可以感受到浓烈臭味。
实施例十三：
在实施例一至十二中的空调器， 均可以在空调器上再外设一个丙烷探测器， 丙烷探测 器的探测头设置在空调器的出风口处， 丙烷探测器的控制程序集成在空调器的主控制器的 主板上， 当制冷剂发生泄漏时， 丙烷探测器可以探知到当丙烷达到爆炸下极的浓度时， 即 通过控制器发生报警声音。 如此， 对于房间分开设置的情况下， 用户没有闻到某一房间内 的空调器发生泄漏时， 可以通过空调器自身的报警声， 提醒用户空调器发生泄漏故障。
以上虽然出于说明的目的公开了本发明的优选实施例， 但是本领域技术人员应理解， 在不背离所附权利要求公开的本发明的范围和精神的前提下， 各种修改、 增添和替换都是 可行的。
Claims
1. 一种新型环保制冷剂， 其特征在于， 包括丙烷 R290、 四氢噻吩 THT, 其组分含量 (质量百分比）分别为：
丙烷 R290: 95.0-99.7%
四氢噻吩 THT: 0.3〜5.0%
2. 如权利要求 1所述的新型环保制冷剂， 其特征在于， 所述制冷剂的组分含量（质 量百分比）分别为：
丙烷 R290: 96.0-99.7%
四氢噻吩 THT: 0.3-4.0%
3. 如权利要求 1所述的新型环保制冷剂， 其特征在于， 所述制冷剂的组分含量（质 量百分比）分别为：
丙烷 R290: 97.0-99.7%
四氢噻吩 THT: 0.3〜3.0%
4. 如权利要求 1所述的新型环保制冷剂， 其特征在于， 所述制冷剂的组分含量（质 量百分比）分别为：
丙烷 R290: 98.0-99.7%
四氢噻吩 THT: 0.3-2.0%
5. 如权利要求 1所述的新型环保制冷剂， 其特征在于， 所述制冷剂的组分含量（质 量百分比）分别为：
丙烷 R290: 99.0-99.7%
四氢噻吩 THT: 0.3〜1.0%
6. 如权利要求 1所述的新型环保制冷剂， 其特征在于， 所述制冷剂的组分含量（质 量百分比）分别为：
丙烷 R290: 99.4-99.6%
四氢噻吩 THT: 0.4-0.6%
7. 如权利要求 1所述的新型环保制冷剂， 其特征在于， 所述制冷剂的组分含量（质 量百分比）分别为：
丙烷 R290: 99.5%
四氢噻吩 THT: 0.5%
8. 如权利要求 1所述的新型环保制冷剂， 其特征在于， 所述制冷剂还包括 R410a、 R32、 R22、 R125、 R143、 R245eb的其中一种或多种的组合。
9. 如权利要求 8所述的新型环保制冷剂， 其特征在于， 包括丙烷 R290、 R410a、 四 氢噻吩 THT, 其组分含量（质量百分比）分别为：
丙烷 R290: 95.0-97.2%
R410a: 2.5-4.7%
四氢噻吩 THT: 0.3〜0.7%
10.如权利要求 9所述的新型环保制冷剂， 其特征在于， 所述制冷剂的组分含量（质 量百分比）分别为：
丙烷 R290: 95.0-96.2%
R410a: 3.5〜4.7%
四氢噻吩 THT: 0.3〜0.7%
11.如权利要求 9所述的新型环保制冷剂， 其特征在于， 所述制冷剂的组分含量（质 量百分比）分别为：
丙烷 R290: 95.6%
R410a: 3.9%
四氢噻吩 THT: 0.5%
12.如权利要求 9所述的新型环保制冷剂， 其特征在于， 所述制冷剂的组分含量（质 量百分比）分别为：
丙烷 R290: 95%
R410a: 4.5%
四氢噻吩 THT: 0.5%
13.如权利要求 8所述的新型环保制冷剂， 其特征在于， 包括丙烷 R290、 R32、 四氢 噻吩 THT, 其组分含量（质量百分比）分别为：
丙烷 R290: 95.0-97.2%
R32: 2.5-4.7%
四氢噻吩 THT: 0.3〜0.7%
14.如权利要求 13所述的新型环保制冷剂， 其特征在于， 包括丙烷 R290、 R32、 四氢 噻吩 THT, 其组分含量（质量百分比）分别为：
丙烷 R290: 95%
R32: 4.5% 四氢噻吩 THT: 0.5%
15.如权利要求 8所述的新型环保制冷剂， 其特征在于， 包括丙烷 R290、 R22、 四氢 噻吩 THT, 其组分含量（质量百分比）分别为：
丙烷 R290: 95.0-97.2%
R22: 2.5-4.7%
四氢噻吩 THT: 0.3〜0.7%
16.如权利要求 15所述的新型环保制冷剂， 其特征在于， 包括丙烷 R290、 R22、 四氢 噻吩 THT, 其组分含量（质量百分比）分别为：
丙烷 R290: 95%
R22: 4.5%
四氢噻吩 THT: 0.5%
17.如权利要求 8所述的新型环保制冷剂， 其特征在于， 包括丙烷 R290、 R125、 四氢 噻吩 THT, 其组分含量（质量百分比）分别为：
丙烷 R290: 95.0-97.2%
R125 : 2.5-4.7%
四氢噻吩 THT: 0.3〜0.7%
18.如权利要求 17所述的新型环保制冷剂， 其特征在于， 包括丙烷 R290、 R125、 四 氢噻吩 THT, 其组分含量（质量百分比）分别为：
丙烷 R290: 95%
R125 : 4.5%
四氢噻吩 THT: 0.5%
19.如权利要求 8所述的新型环保制冷剂， 其特征在于， 包括丙烷 R290、 R143、 四氢 噻吩 THT, 其组分含量（质量百分比）分别为：
丙烷 R290: 95.0-97.2%
R143 : 2.5-4.7%
四氢噻吩 THT: 0.3〜0.7%
20.如权利要求 18所述的新型环保制冷剂， 其特征在于， 包括丙烷 R290、 R143、 四 氢噻吩 THT, 其组分含量（质量百分比）分别为：
丙烷 R290: 95%
R143 : 4.5% 四氢噻吩 THT: 0.5%
21.如权利要求 8所述的新型环保制冷剂， 其特征在于， 包括丙烷 R290、 R245eb、 四 氢噻吩 THT, 其组分含量（质量百分比）分别为：
丙烷 R290: 95.0-97.2%
R245 : 2.5-4.7%
四氢噻吩 THT: 0.3〜0.7%
22.如权利要求 20所述的新型环保制冷剂， 其特征在于， 包括丙烷 R290、 R245eb、 四氢噻吩 THT, 其组分含量（质量百分比）分别为：
丙烷 R290: 95.0%
R245 : 4.5%
四氢噻吩 THT: 0.5%
23.如权利要求 8所述的新型环保制冷剂， 其特征在于， 包括丙烷 R290、 R410a、 R22> 四氢噻吩 THT, 其组分含量（质量百分比）分别为：
丙烷 R290: 95.0%
R410a: 2.5%
R22: 2%
四氢噻吩 THT: 0.5%
24.一种空调器， 其特征在于， 所述空调器应用如权利要求 1至 23中任一项所述的制 冷剂。
25.如权利要求 24所述的空调器， 其特征在于， 所述空调器还包括丙烷探测器， 所述 丙烷探测器的探头设置于空调器出风口处， 所述丙烷探测器的控制部集成在所述空调器的 控制器中。
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