JP2006189922A - Pressure reduction adjustment device - Google Patents

Pressure reduction adjustment device Download PDF

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JP2006189922A
JP2006189922A JP2004381679A JP2004381679A JP2006189922A JP 2006189922 A JP2006189922 A JP 2006189922A JP 2004381679 A JP2004381679 A JP 2004381679A JP 2004381679 A JP2004381679 A JP 2004381679A JP 2006189922 A JP2006189922 A JP 2006189922A
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pressure
valve
primary
side passage
compressed air
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JP4577496B2 (en
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Tsutomu Yoshida
力 吉田
Kazuhiko Kuraguchi
和彦 蔵口
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Max Co Ltd
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Max Co Ltd
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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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P80/00—Climate change mitigation technologies for sector-wide applications
    • Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier

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Abstract

<P>PROBLEM TO BE SOLVED: To secure safety without installing any safety valve in a separate pipe, to realize reduction in space and cost, and to regulate a pressure on the input side of a pressure reducing valve equally in connection to a hose via a single component. <P>SOLUTION: In this pressure reduction adjustment device, compressed air at a primary pressure, which is fed from a compressor and set to a high pressure, inside a pressure tank 5 is decompressed to a secondary pressure lower than the primary pressure by means of a pressure reducing valve 20. A housing 22 for the pressure reducing valve 20 is provided with a primary pressure side passage 23 for the compressed air, a secondary pressure side passage 24 after pressure reduction, a valve element 25 throttling the compressed air from the primary pressure side passage to supply it to the secondary pressure side passage 24. A valve port 39 is opened in the primary pressure side passage of the housing 22, and the valve port 39 is equipped with a safety valve 21 releasing the primary pressure side passage 23 to the atmosphere when the primary pressure becomes a predetermined pressure or more. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、高圧に設定された圧力タンクの一次圧を減圧して外部に取り出す際に一次圧が過大な圧力となっていたときに大気に放出するための減圧調整装置に関する。   The present invention relates to a depressurization adjusting device for releasing a primary pressure of a pressure tank set to a high pressure and releasing it to the atmosphere when the primary pressure is excessive when taking it out.

空気圧縮装置によって圧縮された圧縮空気を貯留する圧力タンク内の圧縮空気を外部に送り出す配管や、工場の大型コンプレッサから分岐形成された配管には高圧の一次圧の圧縮空気が満たされているので、上記配管を空圧工具のエアホースに接続して使用するためには、二次圧に減圧するのが一般的である。   Because the piping that sends compressed air in the pressure tank that stores compressed air compressed by the air compressor and the piping that branches off from a large compressor in the factory is filled with high-pressure primary compressed air In order to connect the pipe to an air hose of a pneumatic tool, the pressure is generally reduced to a secondary pressure.

このような圧力タンクには、空圧工具に接続するための継手のほかに、一次圧を二次圧に減圧するための減圧弁が上記継手の部位の近傍に設けられている。
特公平６−８９８５２号公報 In such a pressure tank, in addition to a joint for connecting to a pneumatic tool, a pressure reducing valve for reducing the primary pressure to a secondary pressure is provided in the vicinity of the joint portion.
Japanese Patent Publication No. 6-89852

ところで、従来の減圧弁は一次圧に過大な圧力が印加されても排出されず、減圧弁自体の耐圧に依存していたため、安全性に欠けるという問題がある。つまり、一次圧が異常な高圧になってしまうと、二次圧も高圧の状態で出力されてしまうので、常圧用と高圧用の配管が存在するときに誤接続によって高圧の配管に常圧用の空圧工具を接続してしまった場合などには特に危険である。   By the way, the conventional pressure reducing valve is not discharged even if an excessive pressure is applied to the primary pressure, and depends on the pressure resistance of the pressure reducing valve itself, so that there is a problem of lack of safety. In other words, if the primary pressure becomes abnormally high, the secondary pressure is also output in a high-pressure state. This is especially dangerous when a pneumatic tool is connected.

このため、圧力タンク内の一次圧が過大な高さになったときに圧力タンク内の圧縮空気を大気に放出して内圧を減圧するための安全弁を別途設ける必要がある。このような安全弁は従来は圧力タンクに設けた別配管に設けられていた。   For this reason, it is necessary to provide a separate safety valve for reducing the internal pressure by releasing the compressed air in the pressure tank to the atmosphere when the primary pressure in the pressure tank becomes excessively high. Conventionally, such a safety valve is provided in a separate pipe provided in the pressure tank.

以上のように、減圧弁は継手の近傍に配置され、また安全弁は圧力タンクの別配管に設けられていたので、コストが高くなるだけでなく、圧力タンクには、一次圧計、二次圧計、圧力スイッチなどの補器が取り付けられているので、安全弁の配管をどこに設けるかというスペースの点も問題があった。   As described above, the pressure reducing valve is disposed in the vicinity of the joint, and the safety valve is provided in a separate pipe of the pressure tank, so that not only the cost increases, but the pressure tank includes a primary pressure gauge, a secondary pressure gauge, Since auxiliary equipment such as a pressure switch is installed, there is also a problem in the space where the safety valve piping is provided.

本発明は、上記問題点を解消し、別配管に安全弁を設けなくても一次圧を減圧弁の入力と同時に規制することによって安全を確保することができるとともに、省スペース、コストの削減を可能とすることができ、さらに単品でホースなどに接続するときも、同様に減圧弁の入力側の圧力を規制できる減圧調整装置を提供することをその課題とする。   The present invention solves the above problems and can secure safety by regulating the primary pressure at the same time as the input of the pressure reducing valve without providing a safety valve in a separate pipe, and can also save space and cost. Furthermore, when connecting to a hose or the like as a single item, it is an object of the present invention to provide a decompression adjusting device that can regulate the pressure on the input side of the decompression valve.

上記課題を解決するため、請求項１に係る発明は、まず圧縮装置から送られて高圧に設定された圧力タンクの一次圧の圧縮空気を、減圧弁によって上記一次圧よりも低い二次圧に減圧させて空圧工具等の使用に供する減圧調整装置を対象とする。   In order to solve the above-mentioned problem, the invention according to claim 1 is characterized in that the compressed air of the primary pressure of the pressure tank sent from the compressor and set to a high pressure is first converted to a secondary pressure lower than the primary pressure by the pressure reducing valve. The target is a depressurization adjusting device that uses a pneumatic tool or the like by reducing the pressure.

そして、このような減圧調整装置につき、上記減圧弁のハウジングには、圧縮空気の一次圧側の通路と、減圧後の二次圧側の通路と、一次圧側の通路からの圧縮空気を絞って二次圧側の通路に供給する弁体とを備え、上記ハウジングの一次圧側の通路に、弁口を開口し、この弁口には一次圧が所定の圧力以上になったときに上記一次圧側の通路を大気に開放する安全弁を設けたことを特徴とする。   In such a pressure reducing adjustment device, the pressure reducing valve housing has a secondary passage by restricting compressed air from the primary pressure side passage, the secondary pressure side passage after decompression, and the primary pressure side passage. A valve body that supplies the pressure side passage, and opens a valve port in the primary pressure side passage of the housing, and the primary pressure side passage is opened to the valve port when the primary pressure exceeds a predetermined pressure. A safety valve that opens to the atmosphere is provided.

請求項１に係る発明によれば、減圧弁の一次圧側に一次圧が過大になるのを防止する安全弁を一体的に設けたことにより、一次圧側の通路の内圧が所定の圧力以上になったときに安全弁が開いて一次圧側の通路を大気に開放するようになっている。したがって、別配管に安全弁を設けなくても一次圧を減圧弁の入力と同時に規制することによって安全を確保することができる。したがって、減圧弁自体に特別の耐圧性は要求されない。   According to the first aspect of the present invention, the internal pressure of the passage on the primary pressure side becomes equal to or higher than the predetermined pressure by integrally providing the safety valve for preventing the primary pressure from becoming excessive on the primary pressure side of the pressure reducing valve. Sometimes the safety valve is opened to open the primary pressure side passage to the atmosphere. Therefore, safety can be ensured by regulating the primary pressure simultaneously with the input of the pressure reducing valve without providing a safety valve in a separate pipe. Therefore, special pressure resistance is not required for the pressure reducing valve itself.

また、安全弁は減圧弁と共通のハウジングに設けられているから、安全弁を別配管に設けるということがなく、省スペース化、コストの削減を可能とすることができる。   Further, since the safety valve is provided in the same housing as the pressure reducing valve, the safety valve is not provided in a separate pipe, and space saving and cost reduction can be achieved.

さらに、単品でホースなどに接続するときも、減圧弁に安全弁が一体に設けられている構造なので、入力側の圧力を規制することができる。   Furthermore, even when connected to a hose or the like as a single item, the pressure on the input side can be regulated because the safety valve is provided integrally with the pressure reducing valve.

図１および図２において符号Ａはコンプレッサを示す。これは、フレーム１上にモータ２を駆動源として空気を圧縮する圧縮装置３と、圧縮装置３で圧縮された圧縮空気を貯留する1対の圧力タンク５とを備えた双胴式コンプレッサで、圧力タンク５の取り出し部６に設けられたカプラ（継手）７に空圧工具（図示せず）を連結し、上記圧力タンク５の内部に蓄圧された圧縮空気を外部に取り出して上記空圧工具に送り出すもので、圧縮装置３には大気を取り込んで圧縮する一次圧縮装置３ａと、一次圧縮装置３ａで圧縮された一次圧をさらに昇圧する二次圧縮装置３ｂとが設けられている。両圧力タンク５は連結管（図示せず）によって連結され、両方の圧力タンク５の内圧は等圧になるように設定されている。なお、８、９はモータ２や圧縮装置３などを冷却する冷却用ファン（９はシロッコファン）である。   1 and 2, the symbol A indicates a compressor. This is a twin-cylinder compressor including a compression device 3 that compresses air using a motor 2 as a drive source on a frame 1 and a pair of pressure tanks 5 that store compressed air compressed by the compression device 3. A pneumatic tool (not shown) is connected to a coupler (joint) 7 provided in the take-out portion 6 of the pressure tank 5, and the compressed air accumulated in the pressure tank 5 is taken out to the outside. The compressor 3 is provided with a primary compressor 3a that takes in the air and compresses it, and a secondary compressor 3b that further boosts the primary pressure compressed by the primary compressor 3a. Both pressure tanks 5 are connected by a connecting pipe (not shown), and the internal pressures of both pressure tanks 5 are set to be equal. Reference numerals 8 and 9 are cooling fans (9 is a sirocco fan) for cooling the motor 2, the compressor 3, and the like.

ところで、上記コンプレッサＡには各種の弁や圧力計やカプラ７が設けられており、そのうちの圧縮空気取り出し部には、弁や圧力計やカプラの取り出しユニット１１が設けられている。すなわち、圧力タンク５の一端側上にはソケット１０と補強用ブラケット１２とが設けられている。ソケット１０の内側には雌ネジが形成されている。   By the way, the compressor A is provided with various valves, pressure gauges, and couplers 7, and a compressed air take-out portion is provided with a valve, pressure gauge, and coupler take-out unit 11. That is, the socket 10 and the reinforcing bracket 12 are provided on one end side of the pressure tank 5. A female screw is formed inside the socket 10.

取り出しユニット１１は図３に示されるように、共通のベース１３にカプラ７と圧力調整装置１４と二次圧計１６と一次圧計１７とを配置したもので、これらの部材はベース１３の長手方向に沿って形成された導管１５に連通している。導管は取り出しユニット１１を固定している配管ニップル１８内に形成された管を通じて圧力タンク５に通じている。したがって、圧力タンク５内の圧縮空気は導管１５に供給される。ベース１３の取り出し側の端部は補強用ブラケット１２に固定されている。   As shown in FIG. 3, the take-out unit 11 has a coupler 7, a pressure adjusting device 14, a secondary pressure gauge 16, and a primary pressure gauge 17 arranged on a common base 13, and these members are arranged in the longitudinal direction of the base 13. It communicates with a conduit 15 formed along the line. The conduit leads to the pressure tank 5 through a pipe formed in a pipe nipple 18 fixing the take-out unit 11. Therefore, the compressed air in the pressure tank 5 is supplied to the conduit 15. An end portion on the take-out side of the base 13 is fixed to the reinforcing bracket 12.

上記構成において、２つの圧縮装置３ａ、３ｂの運転が開始すると、大気中の空気が圧縮されて圧力タンク５に送られ、圧力タンク５内の圧力が昇圧していく。そして、一定の圧力になると、圧力スイッチが作動して圧縮装置の運転が停止する。そして、空圧工具を使用するときは、圧力調整装置１４により空圧工具に適正な圧力に調整しておき、取り出しユニット１１のカプラ７に空圧工具用エアホースのプラグを差し込む。これにより、圧力タンク５内の圧縮空気は圧力調整装置１４により調整された圧力に減圧され、取り出し圧として空圧工具に供給され、釘打ち、ネジ打ち、ねじ込みなどの作業に使用される。   In the above configuration, when the operation of the two compression devices 3a and 3b is started, air in the atmosphere is compressed and sent to the pressure tank 5, and the pressure in the pressure tank 5 is increased. When the pressure reaches a certain level, the pressure switch is activated to stop the operation of the compressor. When the pneumatic tool is used, the pressure is adjusted to an appropriate pressure for the pneumatic tool by the pressure adjusting device 14, and the plug of the pneumatic tool air hose is inserted into the coupler 7 of the take-out unit 11. As a result, the compressed air in the pressure tank 5 is reduced to the pressure adjusted by the pressure adjusting device 14, supplied to the pneumatic tool as a take-out pressure, and used for operations such as nailing, screwing and screwing.

なお、一次圧計１７は圧力タンク５内の空気圧が現在どの程度あるかを計測表示する圧力計であり、二次圧計１６は圧力調整装置１４を介して上記圧力タンク５から取り出した圧縮空気の空気圧を計測表示する圧力計である。   The primary pressure gauge 17 is a pressure gauge that measures and displays the current air pressure in the pressure tank 5, and the secondary pressure gauge 16 is the air pressure of the compressed air taken out from the pressure tank 5 via the pressure adjusting device 14. It is a pressure gauge that measures and displays.

ところで、上記圧力調整装置１４は、図４および図５に示されるように、上記圧力タンク５内の一次圧の圧縮空気を外部に取り出して空圧工具に送り出す際に上記圧力タンク５の空気圧を使用圧力（二次圧）まで減圧する減圧弁２０と、圧力タンク５内の圧力が異常に高くなったときに内部の圧縮空気を大気に開放するための安全弁２１とから構成されている。   By the way, as shown in FIGS. 4 and 5, the pressure adjusting device 14 takes out the air pressure of the pressure tank 5 when taking out the compressed air of the primary pressure in the pressure tank 5 to the outside and sending it to the pneumatic tool. The pressure reducing valve 20 is configured to reduce the pressure to the working pressure (secondary pressure), and the safety valve 21 is used to release the compressed air inside to the atmosphere when the pressure in the pressure tank 5 becomes abnormally high.

上記減圧弁２０と安全弁２１とは一体的に設けられた共通のハウジング２２に設けられている。すなわち、図４、図５に示されるように、ハウジング２２の下部には、上記導管１５に通じる圧縮空気の一次圧側の通路２３の終端部と、減圧後の二次圧側の通路２４の始端部とが設けられ、一次圧側の通路２３の終端部はハウジング２２下部の中央の弁室２５に配置され、この弁室２５には一次圧側の通路２３からの圧縮空気を絞って二次圧側の通路２４に供給する減圧用弁体２６が設けられている。この弁体２６はハウジング２２の中央下部に設けられ、下部バネ２７によって上方に付勢されて空気通孔２８を閉じている。なお、上記弁体２６の一次圧側と二次圧側にはフィルタ２９が取り付けられている。また、上記弁体２６の上部にはピストン３０が配置され、ピストン３０は上部バネ３１によって弁体２６を下動させて空気通孔２８を開くように付勢されている。ピストン３０の上部バネ３１のバネ受け３２はハンドル３３の中央に固定されたネジ棒３４の下端に係合されている。ネジ棒３４はハウジング２２の頂部中央のネジ穴３５に螺合している。   The pressure reducing valve 20 and the safety valve 21 are provided in a common housing 22 provided integrally. That is, as shown in FIGS. 4 and 5, at the lower part of the housing 22, the end portion of the passage 23 on the primary pressure side of the compressed air communicating with the conduit 15 and the start end portion of the passage 24 on the secondary pressure side after decompression are provided. The end of the primary pressure side passage 23 is disposed in the central valve chamber 25 below the housing 22, and the compressed air from the primary pressure side passage 23 is squeezed into the valve chamber 25 to provide a secondary pressure side passage. A pressure reducing valve body 26 to be supplied to 24 is provided. The valve body 26 is provided at the lower center of the housing 22 and is biased upward by a lower spring 27 to close the air passage hole 28. A filter 29 is attached to the primary pressure side and the secondary pressure side of the valve body 26. A piston 30 is disposed above the valve body 26, and the piston 30 is biased by an upper spring 31 so as to open the air passage hole 28 by moving the valve body 26 downward. A spring receiver 32 of the upper spring 31 of the piston 30 is engaged with a lower end of a screw rod 34 fixed to the center of the handle 33. The screw rod 34 is screwed into the screw hole 35 at the center of the top of the housing 22.

上記減圧弁構成によれば、ハンドル３３を回転させることにより、ネジ棒３４を下動させて上部バネ３１のピストン３０に対する強さを調整し、これにより弁体２６を下部バネ２７に抗して押し下げ、空気通孔２８を開閉し、またその開き度合いを調整することができる。減圧の度合いは二次圧計でみればよい。減圧弁を開いたときは一次圧の圧縮空気は弁体２６によって絞られた状態で図５の矢印のように二次圧側に送られる。   According to the pressure reducing valve configuration, by rotating the handle 33, the screw rod 34 is moved downward to adjust the strength of the upper spring 31 against the piston 30, thereby resisting the valve body 26 against the lower spring 27. By pushing down, the air passage hole 28 can be opened and closed, and the degree of opening thereof can be adjusted. What is necessary is just to look at the degree of pressure reduction with a secondary pressure gauge. When the pressure reducing valve is opened, the compressed air of the primary pressure is sent to the secondary pressure side as indicated by the arrow in FIG.

なお、上記ピストン３０の中心部には貫通孔３６が形成されている。これは、例えば二次圧側の圧力が高い圧力状態に設定されている状態から、操作者がハンドル３３を操作して二次圧側の圧力を低い圧力状態へ設定する際などのように、二次圧側の圧力状態が操作者が所望する圧縮空気の取り出し圧力よりも高い状態となった際に、、二次圧側の圧縮空気がピストン３０を押し上げて中心貫通孔３６を通り、さらに排気口３７から排出するように逆流させることにより、二次圧側に高圧が残らないようにするためである。   A through hole 36 is formed at the center of the piston 30. This is because, for example, when the operator operates the handle 33 to set the pressure on the secondary pressure side to a low pressure state from the state where the pressure on the secondary pressure side is set to a high pressure state, When the pressure state on the pressure side becomes higher than the pressure for taking out the compressed air desired by the operator, the compressed air on the secondary pressure side pushes up the piston 30 and passes through the central through hole 36 and further from the exhaust port 37. This is to prevent a high pressure from remaining on the secondary pressure side by allowing the exhaust gas to flow backward.

次に、安全弁２１は上記減圧弁２０の弁室２５に臨むように配置されている。すなわち、一次圧側通路２３の終端部に直角に設けられたバルブハウジング３８には上記弁室２５に開口する弁口３９が形成されているとともに、上記弁口３９を開閉するバルブステム４０が配置されている。バルブステム４０はバネ４１により常時上記弁口３９を塞ぐように付勢され、バネ４１に抗して押し込まれたときは、上記弁口３９が排気口４２に対して開くように形成されている。   Next, the safety valve 21 is disposed so as to face the valve chamber 25 of the pressure reducing valve 20. That is, the valve housing 38 provided at a right angle to the terminal end portion of the primary pressure side passage 23 is formed with a valve port 39 that opens to the valve chamber 25 and a valve stem 40 that opens and closes the valve port 39. ing. The valve stem 40 is constantly biased by a spring 41 so as to block the valve port 39, and is formed so that the valve port 39 opens with respect to the exhaust port 42 when pushed against the spring 41. .

上記構成によれば、上記減圧弁２０の一次圧側の通路２３の内圧が所定の圧力以上になったときに上記弁口３９が排気口４２に開いて上記一次圧側の通路２３を大気に開放し、これにより一次圧が過大になるのを防止することができる。   According to the above configuration, when the internal pressure of the primary pressure side passage 23 of the pressure reducing valve 20 becomes equal to or higher than a predetermined pressure, the valve port 39 opens to the exhaust port 42 and opens the primary pressure side passage 23 to the atmosphere. Thus, it is possible to prevent the primary pressure from becoming excessive.

なお、上記バルブハウジング３８は上記ハウジング２２に対してねじ込みによって取り付けられているから、バルブハウジング３８を螺進させることにより、バネ４１のバネ圧を調整し、排気させる圧力を調整することができる。４３はバルブハウジング３８の回り止め用のネジである。   Note that, since the valve housing 38 is attached to the housing 22 by screwing, the spring pressure of the spring 41 can be adjusted and the pressure to be exhausted can be adjusted by screwing the valve housing 38. Reference numeral 43 denotes a screw for preventing rotation of the valve housing 38.

上述のように、減圧弁２０と安全弁２１とを一体的に設けたことにより、減圧弁２０の一次圧側の通路２３の内圧が所定の圧力以上になったときに安全弁２１の弁口３９が排気口４２に通じて上記一次圧側の通路２３を大気に開放するようになっている。このように、別配管に安全弁２１を設けなくても一次圧を減圧弁２０の入力と同時に規制することによって安全を確保することができる。したがって、減圧弁２０自体に特別の耐圧性は要求されない。   As described above, since the pressure reducing valve 20 and the safety valve 21 are provided integrally, the valve port 39 of the safety valve 21 is exhausted when the internal pressure of the passage 23 on the primary pressure side of the pressure reducing valve 20 exceeds a predetermined pressure. The primary pressure side passage 23 is opened to the atmosphere through the opening 42. Thus, safety can be ensured by regulating the primary pressure simultaneously with the input of the pressure reducing valve 20 without providing the safety valve 21 in a separate pipe. Therefore, special pressure resistance is not required for the pressure reducing valve 20 itself.

また、安全弁２１は減圧弁２０と共通のハウジング２２に設けられているから、安全弁２１を別配管に設けるということがなく、省スペース化、コストの削減を可能とすることができる。   Moreover, since the safety valve 21 is provided in the housing 22 common to the pressure reducing valve 20, the safety valve 21 is not provided in a separate pipe, and space saving and cost reduction can be achieved.

さらに、単品でホースなどに接続するときも、減圧弁２０に安全弁２１が一体に設けられている構造なので、入力側の圧力を規制することができる。   In addition, when connecting to a hose or the like as a single product, the pressure on the input side can be regulated because the safety valve 21 is provided integrally with the pressure reducing valve 20.

上記圧力調整装置は、空圧工具などのコンプレッサだけでなく、コンプレッサに連結される補助タンクや工場配管などに適用することができる。   The pressure adjusting device can be applied not only to a compressor such as a pneumatic tool but also to an auxiliary tank or factory piping connected to the compressor.

取り出しユニットを取り付けた状態のコンプレッサの側面図である。It is a side view of the compressor of the state which attached the taking-out unit. 上記取り出しユニットの取り付け態様を示す斜視図である。It is a perspective view which shows the attachment aspect of the said taking-out unit. 上記取り出しユニットを取り付け態様を示す側面図である。It is a side view which shows the aspect which attached the said taking-out unit. 圧力調整装置の側面図である。It is a side view of a pressure regulator. 図４のＸ−Ｘ線上の断面図である。It is sectional drawing on the XX line of FIG.

符号の説明Explanation of symbols

５ 圧力タンク
１４ 圧力調整装置
２０ 減圧弁
２１ 安全弁
２３ 一次圧側の通路
２４ 二次圧側の通路
３９ 弁口 5 Pressure tank 14 Pressure adjusting device 20 Pressure reducing valve 21 Safety valve 23 Primary pressure side passage 24 Secondary pressure side passage 39 Valve port

Claims (1)

圧縮装置から送られて高圧に設定された圧力タンクの一次圧の圧縮空気を、減圧弁によって上記一次圧よりも低い二次圧に減圧させて空圧工具等の使用に供する減圧調整装置であって、
上記減圧弁のハウジングには、圧縮空気の一次圧側の通路と、減圧後の二次圧側の通路と、一次圧側の通路からの圧縮空気を絞って二次圧側の通路に供給する弁体とを備え、上記ハウジングの一次圧側の通路に、弁口を開口し、この弁口には一次圧が所定の圧力以上になったときに上記一次圧側の通路を大気に開放する安全弁を設けたことを特徴とする減圧調整装置。 This is a decompression adjustment device for reducing the primary pressure compressed air sent from the compression device to a secondary pressure lower than the primary pressure by the pressure reducing valve and using it for pneumatic tools etc. And
The pressure reducing valve housing includes a primary pressure side passage for compressed air, a secondary pressure side passage after decompression, and a valve body that squeezes compressed air from the primary pressure side passage and supplies the compressed air to the secondary pressure side passage. A valve opening is provided in the primary pressure side passage of the housing, and a safety valve is provided in the valve opening for opening the primary pressure side passage to the atmosphere when the primary pressure exceeds a predetermined pressure. A depressurization adjusting device.
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JP2012225162A (en) * 2011-04-15 2012-11-15 Hitachi Industrial Equipment Systems Co Ltd Air compressor
JP2018071508A (en) * 2016-11-03 2018-05-10 マックス株式会社 Air compressor and air take-out part for air compressor
JP2022035351A (en) * 2020-08-20 2022-03-04 三輪精機株式会社 Air compressor device and compression air supply device

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JP2012225162A (en) * 2011-04-15 2012-11-15 Hitachi Industrial Equipment Systems Co Ltd Air compressor
JP2018071508A (en) * 2016-11-03 2018-05-10 マックス株式会社 Air compressor and air take-out part for air compressor
JP2022035351A (en) * 2020-08-20 2022-03-04 三輪精機株式会社 Air compressor device and compression air supply device
JP7539691B2 (en) 2020-08-20 2024-08-26 三輪精機株式会社 Air compressor equipment and compressed air supply equipment

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