Pneumatic control afã horow ne mfitiase amansin
Wɔ mframa nhyehyɛe mu no, nneɛma a wɔde di dwuma no yɛ nneɛma a ɛho hia a wɔde di nhyɛso, nsu a ɛsen, mframa a wɔahyɛ no den no kwan a ɛsen ne nsɛnkyerɛnne a wɔde mena no so na wɔhwɛ so. Ɛdenam wɔn a wɔde bedi dwuma so no, wobetumi ayɛ mframa akwan horow de ahwɛ ahu sɛ mframa a ɛma nneɛma yɛ adwuma no yɛ adwuma sɛnea ɛsɛ. Wobetumi akyekyɛ mframa a wɔde di dwuma no mu akuw atitiriw abiɛsa a egyina wɔn dwumadi ne sɛnea wɔde di dwuma so: nhyɛso a wɔde di dwuma, nsu a ɛsen so, ne akwankyerɛ a wɔde di dwuma. Bio nso, mframa mu nteaseɛ afã ahodoɔ bi wɔ hɔ a ɛtumi nya nteaseɛ dwumadie ahodoɔ denam kwankyerɛ ne on-off a ɛsesa mframa a ɛsen no so.
1Nhyɛso control valve ne nhyɛso control circuit
Wɔde pressure control valves di dwuma titiriw de hwɛ mframa a ɛwɔ nhyehyɛe no mu nhyɛso so na wodi nhyɛso ahwehwɛde ahorow ho dwuma. Wobetumi akyekyɛ nhyɛso sohwɛ valve ahorow mu abiɛsa: Nea edi kan ne pressure reducing valve a ɛsom sɛ ɛtew nhyɛso so na ɛma ɛyɛ den; Nea ɛto so abien ne ahobammɔ valve a ɛyɛ adwuma ma nhyɛso ano hye na ɛma ahobammɔ ahobammɔ, a ɛne ahotɔ valve. Nea ɛto so abiɛsa ne valve a ɛtoatoa so a egyina gas line nhyɛso ahorow so yɛ nneɛma bi a wɔde di dwuma.
1. Ahobammɔ valve
Ahobammɔ valve no di dwuma wɔ ahobammɔ ahobammɔ mu wɔ nhyehyɛe no mu. Sɛ nhyehyɛe no nhyɛso boro bo a wɔakyerɛ no so a, ahobammɔ valve no bue ma mframa no fã bi gyae kɔ wim, na ɛhwɛ hu sɛ nhyehyɛe no nhyɛso ntra bo a wɔma ho kwan no na ɛnam so siw akwanhyia a nhyɛso a ɛboro so wɔ nhyehyɛe no mu de ba no ano. Wɔakyerɛ ahobammɔ valve no nhyehyɛe ne mfonini agyiraehyɛde wɔ mfonini no mu.
Mfonini: Ahobanbɔ valve no nhyehyɛe ne mfonini agyiraehyɛde
2. Nhyɛso-a ɛtew valve so
Nhyɛsoɔ-tew valve no dwumadie ne sɛ ɛbɛtew nhyɛsoɔ a ɛwɔ gas a wɔde ma no so akɔ nhyɛsoɔ a afiri no hwehwɛ no so na ɛhwɛ sɛ nhyɛsoɔ boɔ no kɔ so yɛ den wɔ nhyɛsoɔ a wɔatew so akyi. Mfitiaseɛ adwumayɛ a nhyɛsoɔ so tew valve no bi ne nhyɛsoɔ a ɛhwɛ so, nhyɛsoɔ su ne nsuo a ɛsen su. Nhyɛsoɔ su ne nsuo a ɛsene su yɛ nneɛma mmienu a ɛho hia wɔ nhyɛsoɔ-tew valve mu na ɛyɛ nnyinasoɔ titire ma ne paw ne ne di. Sɛ wɔrepaw pressure-reducing valve a, ɛsɛ sɛ wogyina sɛnea wɔde di dwuma no so kyerɛ ne su ne ne pressure regulation pɛpɛɛpɛ, na afei ɛsɛ sɛ wɔpaw ne diameter sɛnea output flow a ɛsen biara a wɔhwehwɛ. Nhyehyeɛ a ɛwɔ pressure-reducing valve no mu no wɔakyerɛ wɔ Mfonini no mu. Ɛsɛ sɛ mframa fibea nhyɛso a ɛwɔ valve no mu no yɛ kɛse sen nhyɛso a ɛsen biara a efi mu ba no 0.1MPa. Wɔtaa de nhyɛsoɔ-tew valve no si nsuo a wɔpaapae mu ne mframa a wɔde yiyi mu no akyi ne ansa na wɔde ngo nsuo sradeɛ no ahyɛ mu, sɛdeɛ wɔakyerɛ wɔ Mfonini no mu no. Yɛsrɛ sɛ hyɛ no nsow sɛ ɛnsɛ sɛ wodan ne kwan a ɛkɔ mu ne nea ɛkɔ mu no akyi. Sɛ wɔmfa valve no nni dwuma a, ɛsɛ sɛ wɔsansan knob no na amma diaphragm no antaa ansɛe wɔ nhyɛso ase, na ebetumi aka ne dwumadi.
Mfonini: Nhyɛso-tew valve no nhyehyɛe
Mfonini: Gyinabea a wɔde hyɛ nhyɛso-tew valve no so
3. Nhyɛso a wɔde di dwuma wɔ amansin so
Nhyɛsoɔ sohwɛ amansin no yɛ ɔmansin titire a ɛma nhyɛsoɔ a ɛwɔ ɔmansin no mu no kɔ so wɔ baabi pɔtee bi anaasɛ ɛma ɔmansin no tumi nya nhyɛsoɔ a ɛsono emu biara. Nea wɔtaa de di dwuma no bi ne nhyɛso sohwɛ amansin titiriw ne nhyɛso sohwɛ amansin a ɛto so abien.
Nhyɛso a wɔde di dwuma titiriw
Wɔde nhyɛso a wɔde di dwuma titiriw no di dwuma de hwɛ mframa a wɔkora so no nhyɛso so sɛnea ɛbɛyɛ a ɛrentra nhyɛso bo a wɔakyerɛ no so. Wɔtaa de abɔnten so control relief valves ne anyinam ahoɔden contact pressure gauges di dwuma de hwɛ sɛnea mframa compressor ahorow fi ase ne nea egyina so, na wɔma nhyɛso a ɛwɔ mframa akorae dan no mu no kɔ so tra baabi a wɔakyerɛ no. Wɔfa anyinam ahoɔden nkitahodi nhyɛso gauges, a ɛwɔ ahwehwɛde akɛse ma motor ne control. Wɔtaa de di dwuma de hwɛ mframa a wɔde mia mframa nketewa so, sɛnea wɔada no adi wɔ Mfonini no mu no.
Mfonini: Primary pressure control circuit mfonini
2) Nhyɛso a ɛto so abien sohwɛ amansin
Nhyɛso a ɛto so abien a wɔde di dwuma no na ɛhwɛ mframa fibea nhyɛso a ɛwɔ mframa nhyehyɛe no mu no so titiriw. Wɔ mframa mu nkrasɛm mu no, wɔtaa frɛ nsu a ɛpaapae ne mframa a wɔde yiyi mu, nhyɛso a ɛtew valve ne ngo nsuyiri srade a wɔbom frɛ no mframa abiɛsa-afã ahorow. Sɛnea wɔakyerɛ wɔ Mfonini no mu no, ɛyɛ nhyɛso sohwɛ amansin a ɛto so abien a mframa mu nneɛma abiɛsa- asinasin a wɔahyehyɛ.
Mfonini: Nhyɛso a ɛto so abien sohwɛ amansin
2 Flow control valve ne ahoɔhare control circuit
Sɛnea ɛbɛyɛ a cylinder no bɛyɛ adwuma yiye na wotumi de ho to so no, ɛsɛ sɛ wɔhwɛ sɛnea cylinder no tu ntɛmntɛm no so. Ɔkwan a wɔtaa fa so ne sɛ wɔde flow control valve bedi dwuma de ayɛ eyi. Flow control valve no hwɛ ahoɔhare a pneumatic actuator no tu denam gas a ɛsen no a ɛhwɛ so no so, na wonya mframa a ɛsen no sohwɛ denam flow control valve no beae a ɛsen no a wɔsakra no so. Flow control valves a wɔtaa de di dwuma no bi ne throttle valves, one-way throttle valves, exhaust throttle valves, ne nea ɛkeka ho.
Ɔkwan baako-kwan throttle valve
Ɔkwan baako-kwan throttle valve yɛ Control valve a wɔaka abom a ɛyɛ one-way valve ne throttle valve a ɛne ne ho di nsɛ. Wɔakyerɛ ne nhyehyɛe ne ne mfonini agyiraehyɛde wɔ Mfonini no mu. Sɛ mframa no fi hyɛn gyinabea P kɔ hyɛn gyinabea A a, wɔde throttle no fa throttle valve no mu. Sɛ ɛsen fi A kɔ P a, check valve no bue a ɛnyɛ throttling. Wɔtaa de ɔkwan biako so throttle valves di dwuma wɔ ahoɔhare nhyehyɛe ne delay circuits a ɛwɔ cylinders mu.
Mfonini: Nhyehyeɛ ne mfonini agyiraeɛhyɛdeɛ a ɛkyerɛ ɔkwan baako-kwan throttle valve no
2. Ahoɔhare sohwɛ loop
Double-acting cylinders wɔ akwan abien a wɔfa so yɛ nsakrae: intake throttling ne exhaust throttling. Mfonini no kyerɛ intake throttling adjustment circuit no. Wɔ intake throttling mu no, sɛ adesoa no kwankyerɛ ne piston kwankyerɛ no bɔ abira a, piston no kankan no taa yɛ adeyɛ a ɛnkari pɛ, kyerɛ sɛ, adeyɛ a ɛwea. Sɛ adesoa no kwankyerɛ ne piston kwankyerɛ no hyia a, adesoa no taa tu mmirika we, na ɛma cylinder no ntumi nni so. Enti, wɔde intake throttling adjustment circuit no di dwuma kɛse ma cylinders a wɔde ahyɛ vertically. Wɔ cylinders a wɔde asisi hɔ tẽẽ ho no, nsakraeɛ amansin no taa fa exhaust throttling adjustment circuit no, sɛdeɛ wɔakyerɛ wɔ Mfonini no mu no. Sɛnea wɔakyerɛ wɔ Mfonini no mu no, ɛyɛ ahoɔhare sohwɛ ɔmansin mfonini a wɔde throttle valves ayɛ. Sɛ wɔfa mframa a wɔahyɛ no den fi awiei A na wɔma fi awiei B a, check valve a ɛwɔ one-way throttle valve A no bue ma ɛma cylinder no mu abura a enni poma no mu yɛ hyew ntɛmntɛm. Esiane sɛ wɔato one-way valve a ɛwɔ one-way throttle valve B no mu nti, mframa a ɛwɔ poma no mu no betumi afa throttle valve no so nkutoo na akɔ. Ɛdenam nsakrae a wɔbɛyɛ wɔ sɛnea throttle valve B no bue no so no, wobetumi asesa ahoɔhare a ɛde tu bere a cylinder no trɛw no. Nea ɛne eyi bɔ abira no, sɛ wɔyɛ nsakrae wɔ sɛnea throttle valve A no bue no mu a, ebetumi asakra ahoɔhare a cylinder no tu bere a ɛtwe ne ho no. Saa kwan a wɔfa so di so yi ma piston no yɛ adwuma pintinn na ɛno ne nea wɔtaa de di dwuma.
Mfonini: Unidirectional nsakrae circuit ma double-adwuma cylinder
Mfonini: Ahoɔhare sohwɛ circuit a ɛyɛ throttle valves Mfonini
3 Electromagnetic akwankyerɛ control valve ne mframa control circuit
1. Akwankyerɛ control valve
Wɔde directional control valve no di dwuma de hwɛ mframa a wɔahyɛ no den no kwan a ɛsen ne mframa a ɛsen no mu ntwitwiridii so. Wobetumi akyekyɛ mframa kwankyerɛ control valves mu ahorow ahorow a egyina sɛnea valve core no nhyehyɛe so, te sɛ slide valve type, globe type, flat surface type, plug type ne diaphragm type, a emu bi ne globe type ne slide valve type na wɔde di dwuma kɛse. Sɛnea akwan horow a wɔfa so di dwuma kyerɛ no, wobetumi akyekyɛ wɔn mu ayɛ no electromagnetic control type, pneumatic control type, mechanical control type, manual control type ne time control type, ne nea ɛkeka ho Sɛnea wɔn dwumadi su te no, wobetumi akyekyɛ wɔn mu ayɛ no unidirectional type ne reversing type. Sɛnea hyɛn gyinabea dodow ne valve core adwumayɛ gyinabea dodow te no, wobetumi akyekyɛ mu ahorow ahorow te sɛ abien-gyinabea abien-kwan, abien-gyinabea abiɛsa-kwan, ne abiɛsa-gyinabea anum-kwan, sɛnea wɔakyerɛ wɔ Table no mu.
Table: Hyɛn Gyinabea ne Adwumayɛ Gyinabea a Directional Control Valves
2. Electromagnetic akwankyerɛ a wɔde di dwuma
Electromagnetic directional control valve no de electromagnet tumi a ɛtwetwe no pia valve no mu de sesa valve no adwumayɛbea, na ɛnam so hwɛ mframa no kwan a ɛsen no so. Sɛnea wobetumi de nsɛnkyerɛnne a ɛnam push-button switches, limit switches, proximity switches, ne nea ɛkeka ho so de mena so di so no, ɛnyɛ den sɛ wobenya electro-pneumatic combined control na wobetumi de adi dwuma wɔ akyirikyiri, a wɔde dwumadie ahodoɔ pii di dwuma. Solenoid valve ahorow no nkyekyɛmu a wɔtaa yɛ no gyina hyɛn gyinabea dodow ne valve core no adwumayɛbea so, a abien-gyinabea abien-kwan, abien-gyinabea abiɛsa-kwan, abiɛsa-gyinabea anum-kwan, ne afoforo pii ka ho. Sɛnea coil dodow a electromagnet no de di dwuma kyerɛ no, wɔakyekyɛ solenoid valve ahorow mu ayɛ no ahorow biako-a wɔhwɛ so ne nea wɔhwɛ so mmɔho abien-. Wɔakyekyɛ valve electromagnets mu abiɛsa sɛnea tumi ahorow a wɔde di dwuma no te: AC type, DC type ne local type. Saa type yi yɛ AC local rectifier type. Saa electromagnet yi ankasa wɔ fã-asorɔkye rectifier, a ebetumi de AC adi dwuma tẽẽ bere a ɛwɔ DC electromagnet nhyehyɛe ne ne su. Sɛ wɔde di dwuma a, ɛsɛ sɛ wɔpaw electromagnetic directional control valve a ɛfata no sɛnea control ahwehwɛde ahorow te.
Mfonini no kyerɛ schematic mfonini a ɛkyerɛ adwumayɛ nnyinasosɛm a ɛwɔ direct-adwuma biako a anyinam ahoɔden di so abien-gyinabea abiɛsa-kwan electromagnetic akwankyerɛ control valve.
Mfonini: Adwuma nnyinasosɛm mfonini a ɛfa tẽẽ-ayɛ adwuma biako a anyinam ahoɔden hwɛ so electromagnetic akwankyerɛ control valve
Adwuma nnyinasosɛm: Sɛ wɔma electromagnet no ahoɔden fi-a, spring no pia valve core no kɔ soro awiei, na ɛka 7 ne A. Sɛ wɔma electromagnet no ahoɔden a, dade core no pia valve core no kɔ fam awiei denam push poma no so, na ɛka P ne A bom.
Mfonini no kyerɛ adwumayɛ nnyinasosɛm mfonini a ɛfa tẽẽ-ayɛ adwuma, mmɔho abien anyinam ahoɔden hwɛ so abien-gyinabea anum-kwan electromagnetic akwankyerɛ control valve. Mfonini no kyerɛ adwumayɛ nnyinasosɛm mfonini a ɛwɔ pilot-a ɛyɛ adwuma mprenu a anyinam ahoɔden di so akwankyerɛ control valve.
Mfonini: Adwumayɛ nnyinasosɛm mfonini a ɛkyerɛ tẽẽ-ayɛ adwuma mmɔho abien a anyinam ahoɔden di so abien-gyinabea anum-kwan solenoid valve
Mfonini: Adwumayɛ nnyinasosɛm mfonini a ɛkyerɛ pilot-a wɔde anyinam ahoɔden di dwuma mmɔho abien Directional control valve
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