WO2017041467A1 - 一种司钻房用防爆型正压送风空调装置 - Google Patents

一种司钻房用防爆型正压送风空调装置 Download PDF

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WO2017041467A1
WO2017041467A1 PCT/CN2016/076659 CN2016076659W WO2017041467A1 WO 2017041467 A1 WO2017041467 A1 WO 2017041467A1 CN 2016076659 W CN2016076659 W CN 2016076659W WO 2017041467 A1 WO2017041467 A1 WO 2017041467A1
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air
positive pressure
duct
room
air supply
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PCT/CN2016/076659
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English (en)
French (fr)
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王春华
严裕华
戴亚东
黄勇
宋新南
柯彬彬
曹勇
霍建强
石滨泉
朱克勇
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江苏永昇空调有限公司
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Publication of WO2017041467A1 publication Critical patent/WO2017041467A1/zh

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/89—Arrangement or mounting of control or safety devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
    • F24F3/06—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the arrangements for the supply of heat-exchange fluid for the subsequent treatment of primary air in the room units

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  • the invention relates to an air conditioning system, in particular to a positive pressure air supply air conditioning system.
  • the driller control room is the control center of the oil rig, which is greatly affected by temperature and humidity, and is generally in the high temperature area of the Middle East.
  • the summer temperature is higher than 55 °C, and the requirements for air conditioning are higher.
  • the turbocharger and the explosion-proof window machine are generally used in the market, and the comfort and control precision is poor, which can not meet the requirements of cooling and positive pressure.
  • the object of the present invention is to provide a special air conditioning system which can be applied to a high temperature environment and adopts multiple air passages to ensure the positive pressure of the room, and overcome the problems of uneven air supply temperature, high humidity, and poor control precision of the positive pressure.
  • an explosion-proof positive pressure air supply air conditioning device for a driller room comprising a host refrigeration system, an internal circulation air passage, an exhaust air duct, a positive pressure detection control system and a control system;
  • the host refrigeration system is a dual system, and each group of host refrigeration systems includes a compressor, an oil separator, a finned condenser, a liquid accumulator, a finned evaporator, and a gas-liquid separator, which are sequentially connected in series, and the fin-type condensation
  • An axial flow fan is arranged on one side of the device;
  • the internal circulation air passage includes an air treatment air passage, a return air duct and a air supply air duct, and the air supply air duct is disposed at an upper portion of the interior of the positive pressure room and communicates with the inside of the positive pressure room via the upper air supply port thereof,
  • the return air inlet of the return air duct is set on the wall of the positive pressure room and the return air is connected to the inside of the positive pressure room, the air inlet of the air supply duct and the air outlet of the return air duct are respectively connected with the air supply port of the air processing duct and the air outlet.
  • the tuyere is connected to form an internal circulation air passage, and an air filter, a fin evaporator and a blower are arranged in sequence between the air return port and the air supply port of the air treatment duct, and a new air treatment duct is arranged on the air return side of the air return duct An air venting valve is arranged on the fresh air outlet, the return air outlet and the air supply opening;
  • the exhaust air duct comprises an exhaust air duct, a pressure relief air valve and a switching air valve.
  • the exhaust air duct is arranged on the outer wall of the positive pressure room and is connected to the inside and outside of the positive pressure room, and the pressure relief air valve and the switching air valve are all installed in the row. Windy road
  • the positive pressure detection control system includes a differential pressure gauge and a communication tube, the differential pressure gauge is installed inside the positive pressure room, and the differential pressure gauge is connected to the outside of the positive pressure room via the communication tube;
  • a temperature and humidity sensor is disposed on the air outlet of the air supply duct;
  • the compressor, the axial flow fan, the blower, the pressure relief damper, the switching damper, the differential pressure gauge, the temperature and humidity sensor, and each of the electric dampers are all connected to the control system.
  • a drying filter, a flow mirror, and a liquid supply solenoid valve are sequentially connected in series between the accumulator and the evaporator.
  • the return air inlet of the return air duct is a return air shutter.
  • the air supply port of the air supply duct is an aluminum alloy air supply port.
  • the compressor is a fully enclosed scroll, a semi-closed piston or a semi-closed screw.
  • the positive pressure must be applied to the driller.
  • the room is purged.
  • purging first close the air damper of the return air outlet, open the electric damper of the fresh air outlet, the electric damper of the air supply port, switch the damper, and then open the blower, and purge the entire room of the drill room for more than 15 minutes. Exhaust H2S gas and flammable gases are removed through the exhaust duct of the exhaust duct.
  • the switching damper is closed, the electric damper of the new air outlet is opened, and the room is sent to the positive pressure room of the driller.
  • the air treatment duct is introduced from the safe area and filtered by air filter and finned evaporation.
  • the fresh air damper is closed, so that the room is in a positive pressure state, and the air in the positive pressure room is returned to the air through the return air damper.
  • the treatment air duct is cooled and processed and then sent to the room.
  • the pressure is lower than 30 ⁇ 5Pa, the fresh air damper opens, and the fresh air is sent to the room where the driller is pressing.
  • the electric damper of the new air outlet is closed, and the cycle is repeated.
  • the above method can also adjust the opening degree of the damper according to the pressure difference table signal inside the room of the driller to control the fresh air volume introduced, and arbitrarily adjust the positive pressure value of the positive pressure room.
  • the main unit refrigeration system adopts high temperature refrigerant to meet the requirements of high temperature environment above 55 °C; the air filter can meet the requirements of fresh air in the desert and sandstorm environment; the electrical components are designed to meet the explosion protection of the oil area. Requirements; use probe protection to meet the requirements of preventing H2S gas and flammable gases from entering the drill control room in hazardous areas.
  • control system After the positive pressure air supply system is started, the control system will automatically adjust the energy of the main unit refrigeration system according to the change of the room load caused by the fresh air, so as to maintain the temperature in the room.
  • the invention realizes automatic operation, automatic temperature adjustment, automatic control of room pressure value, automatic control, automatic retrieval of faults, automatic monitoring of toxic gas, flammable gas, automatic timing and purging room, and the like, and a communication interface is reserved. Networked with computers for remote operation and monitoring, and with numerous security and alarm functions.
  • FIG. 1 is a schematic structural view of a host refrigeration system according to the present invention.
  • Figure 2 is a schematic view of the structure of the present invention.
  • compressor 1 oil separator 2, gas-liquid separator 3, accumulator 4, drying filter 5, flow mirror 6, liquid supply solenoid valve 7, expansion valve 8, axial fan 9, fin Condenser 10, electric control box 11, finned evaporator 12, centrifugal blower 13, positive pressure room 14, air treatment duct 15, air filter 16, fresh air outlet 17, fresh air plenum 18, air supply 19, air supply air damper 20, air supply duct 21, return air duct 22, return air inlet 23, return air damper 24, differential pressure gauge 25, communication pipe 26, exhaust air duct 27, switching damper 28. Pressure relief damper 29, temperature and humidity sensor 30, control system 31.
  • Figure 1 shows a mainframe refrigeration system for an explosion-proof positive pressure air supply air conditioner for a drill room.
  • the main engine refrigeration system is a dual system.
  • Each group of mainframe refrigeration systems includes a compressor 1 in series, and an oil separator 2.
  • the evaporator 12 is sequentially connected in series with the drying filter 5, the flow mirror 6, and the liquid supply solenoid valve 7.
  • the compressor 1 is a fully enclosed scroll type, a semi-closed piston type or a semi-closed screw type.
  • FIG. 2 shows an explosion-proof positive pressure air supply air conditioner for a drill room.
  • the air supply duct 21 is disposed at the upper part of the inside of the positive pressure room 14 and communicates with the inside of the positive pressure room via the upper air supply port, and the return air duct
  • the return air outlet of 22 is disposed on the wall of the positive pressure room and the return air is connected to the inside of the positive pressure room, the air inlet of the air supply duct and the air outlet of the return air duct are respectively connected with the air supply port 19 and the air return port of the air processing duct 15 respectively.
  • an air filter 16 is connected to form an internal circulation duct, and an air filter 16, a fin type evaporator 12, and a centrifugal blower 13 are disposed in order between the air return port 23 and the air supply port 19 of the air processing duct, and the air processing duct on the side of the return air port 23 is provided.
  • the exhaust air duct 27 is arranged at The outer wall of the positive pressure room 14 is connected to the inside and outside of the positive pressure room, and the pressure relief damper 29 and the switching damper 28 are all installed on the exhaust air duct 27; the differential pressure gauge 25 is installed inside the positive pressure room 14, and the differential pressure gauge 25 is connected.
  • the pipe 26 is connected to the outside of the positive pressure room; the temperature and humidity are set on the air outlet of the air supply duct 21
  • the sensor 30; the compressor, the axial flow fan, the blower, the pressure relief damper, the switching damper, the differential pressure gauge, the temperature and humidity sensor, and each of the electric dampers are all connected to the control system 31.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Air Conditioning Control Device (AREA)
  • Central Air Conditioning (AREA)

Abstract

一种司钻房用防爆型正压送风空调装置，包括主机制冷系统、内部循环风道、排风风道、正压检测控制系统和控制系统（31）；主机制冷系统为双系统，内部循环风道包括空气处理风道（15）、回风风道（22）和送风风道（21）；排风风道（27）包括泄压风阀（29）和切换风阀（28），正压检测控制系统包括压差表（25）和连通管（26），控制系统（31）用于控制房间温度和正压以达到防爆要求。

Description

一种司钻房用防爆型正压送风空调装置 技术领域
本发明涉及一种空调系统，具体涉及一种正压送风空调系统。
背景技术
司钻控制房是石油钻机的控制中枢，受温度湿度的影响较大，且一般都在中东高温地区，夏天温度高于55℃，对空调的要求使用较高。目前市场普遍采用增压机加上防爆窗机，舒适调控精度差，已经不能满足其降温与正压要求。
发明内容
本发明的目的是提供一种能适用高温环境，采用多风道保证房间正压的专用空调系统，克服送风温度不均、湿度太高、正压难以控制的舒适调控精度差等问题。
本发明的技术方案是：一种司钻房用防爆型正压送风空调装置，包括主机制冷系统、内部循环风道、排风风道、正压检测控制系统和控制系统；
所述主机制冷系统为双系统，每组主机制冷系统包括依次串接的压缩机、油分离器、翅片式冷凝器、储液器、翅片式蒸发器和气液分离器，翅片式冷凝器一侧设有轴流风机；
所述内部循环风道包括空气处理风道、回风风道和送风风道，所述送风风道设置于正压房间内部的上部且经其上送风口连通正压房间内部，所述回风风道的回风口设置于正压房间的墙壁上且回风连接正压房间内部，送风风道的进风口以及回风风道的出风口分别与空气处理风道的送风口和回风口连接形成内部循环风道，所述空气处理风道的回风口和送风口之间依次设置空气过滤器、翅片式蒸发器和送风机，所述回风口一侧的空气处理风道上设有新风口，所述新风口、回风口和送风口上均设有电动风阀；
所述排风风道包括排风风道、泄压风阀和切换风阀，排风风道设置于正压房间外壁上连通正压房间内外，泄压风阀、切换风阀均安装于排风风道上；
所述正压检测控制系统包括压差表和连通管，所述压差表安装于正压房间内部，压差表经连通管连通正压房间外部；
所述送风风道的出风口上设置温湿度传感器；
所述压缩机、轴流风机、送风机、泄压风阀、切换风阀、压差表、温湿度传感器和各电动风阀均连接控制系统。
进一步地，所述储液器与蒸发器之间依次串接干燥过滤器、视流镜、供液电磁阀。
进一步地，所述回风风道的回风口为回风百叶窗。
进一步地，所述送风风道的送风口为铝合金送风口。
进一步地，所述压缩机为全封闭涡旋式、半封闭活塞式或半封闭螺杆式。
空调装置在运行前为了保证房间内部不残留H2S气体和可燃性气体，必须先对司钻正压 房间进行吹扫，吹扫时，先关闭回风口电动风阀，打开新风口电动风阀、送风口电动风阀、切换风阀，再打开送风机，对司钻房整个房间吹扫15分钟以上，通过排风风道的排风风道进行排除残留H2S气体和可燃性气体。
司钻房正压送风系统启动后，切换风阀关闭，新风口电动风闸打开，向司钻正压房间内送入从安全区域引进空气处理风道内经空气过滤器过滤、翅片式蒸发器降温处理的新风，当压力达到100±5Pa时，新风口电动风阀关闭，使司钻正压房间处于正压状态，司钻正压房间内的空气经过回风口电动风阀回风进入空气处理风道经降温处理后再送入房间，当压力低于30±5Pa时，新风口风闸打开，向司钻正压房间内送入新风，到100±5Pa时新风口电动风闸关闭，周而复始。上述方法也可根据司钻正压房间内部的压差表信号来调节风阀的开度以控制导入的新风量，任意调节正压房间的正压值。
主机制冷系统采用高温冷媒可以满足高温环境高于55℃的要求；采用空气过滤器对应新风送入可以满足机组在沙漠及沙尘暴的环境中运行；各电气元件采用防爆设计能满足石油区域使用的防爆要求；采用探头保护满足防止危险区域中的H2S气体和可燃性气体进入司钻控制房的要求。
司钻正压房间正压送风系统启动后，控制系统会根据补入的新风引起房间负荷的变化而自动进行主机制冷系统的能量调节，以维持房内温度稳定。
本发明实现自动运行、自动调节温度、自动控制房间压力值、自动控制、自动检索故障、自动监控有毒气体、可燃气体、自动计时吹扫房间等无人职守功能等，同时预留通信接口，可与计算机联网，方便用户远程操作与监控，并具有众多安全保护与报警功能。
附图说明
图1为本发明主机制冷系统结构示意图；
图2为本发明结构示意图。
图中：压缩机1，油分离器2，气液分离器3，储液器4，干燥过滤器5，视流镜6，供液电磁阀7，膨胀阀8，轴流风机9，翅片式冷凝器10，电控箱11，翅片式蒸发器12，离心送风机13，正压房间14，空气处理风道15，空气过滤器16，新风口17，新风口电动风阀18，送风口19，送风口电动风阀20，送风风道21，回风风道22，回风口23，回风口电动风阀24，压差表25，连通管26，排风风道27，切换风阀28，泄压风阀29，温湿度传感器30，控制系统31。
具体实施方式
下面结合附图及实例对本发明作进一步详细说明。
图1所示：一种司钻房用防爆型正压送风空调装置的主机制冷系统，主机制冷系统为双系统，每组主机制冷系统包括依次串接的压缩机1、油分离器2、翅片式冷凝器10、储液器4、翅片式蒸发器12和气液分离器3，翅片式冷凝器10一侧设有轴流风机9；储液器4与翅片式 蒸发器12之间依次串接干燥过滤器5、视流镜6、供液电磁阀7，压缩机1为全封闭涡旋式、半封闭活塞式或半封闭螺杆式。
图2所示：一种司钻房用防爆型正压送风空调装置，送风风道21设置于正压房间14内部的上部且经其上送风口连通正压房间内部，回风风道22的回风口设置于正压房间的墙壁上且回风连接正压房间内部，送风风道的进风口以及回风风道的出风口分别与空气处理风道15的送风口19和回风口23连接形成内部循环风道，空气处理风道的回风口23和送风口19之间依次设置空气过滤器16、翅片式蒸发器12和离心送风机13，回风口23一侧的空气处理风道15上设有新风口17，新风口17、回风口23和送风口19上分别设有新风电动风阀18、回风口电动风阀24和送风口电动风阀20；排风风道27设置于正压房间14外壁上连通正压房间内外，泄压风阀29、切换风阀28均安装于排风风道27上；压差表25安装于正压房间14内部，压差表25经连通管26连通正压房间外部；送风风道21的出风口上设置温湿度传感器30；压缩机、轴流风机、送风机、泄压风阀、切换风阀、压差表、温湿度传感器和各电动风阀均连接控制系统31。

Claims (5)

  1. 一种司钻房用防爆型正压送风空调装置，包括主机制冷系统、内部循环风道、排风风道、正压检测控制系统和控制系统；
    所述主机制冷系统为双系统，每组主机制冷系统包括依次串接的压缩机、油分离器、翅片式冷凝器、储液器、翅片式蒸发器和气液分离器，翅片式冷凝器一侧设有轴流风机；
    所述内部循环风道包括空气处理风道、回风风道和送风风道，所述送风风道设置于正压房间内部的上部且经其上送风口连通正压房间内部，所述回风风道的回风口设置于正压房间的墙壁上且回风连接正压房间内部，送风风道的进风口以及回风风道的出风口分别与空气处理风道的送风口和回风口连接形成内部循环风道，所述空气处理风道的回风口和送风口之间依次设置空气过滤器、翅片式蒸发器和送风机，所述回风口一侧的空气处理风道上设有新风口，所述新风口、回风口和送风口上均设有电动风阀；
    所述排风风道包括排风风道、泄压风阀和切换风阀，排风风道设置于正压房间外壁上连通正压房间内外，泄压风阀、切换风阀均安装于排风风道上；
    所述正压检测控制系统包括压差表和连通管，所述压差表安装于正压房间内部，压差表经连通管连通正压房间外部；
    所述送风风道的出风口上设置温湿度传感器；
    所述压缩机、轴流风机、送风机、泄压风阀、切换风阀、压差表、温湿度传感器和各电动风阀均连接控制系统。
  2. 根据权利要求1所述的一种司钻房用防爆型正压送风空调装置，其特征是：所述储液器与蒸发器之间依次串接干燥过滤器、视流镜、供液电磁阀。
  3. 根据权利要求1所述的一种司钻房用防爆型正压送风空调装置，其特征是：所述回风风道的回风口为回风百叶窗。
  4. 根据权利要求1所述的一种司钻房用防爆型正压送风空调装置，其特征是：所述送风风道的送风口为铝合金送风口。
  5. 根据权利要求1所述的一种司钻房用防爆型正压送风空调装置，其特征是：所述压缩机为全封闭涡旋式、半封闭活塞式或半封闭螺杆式。
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TWI850472B (zh) 2019-09-30 2024-08-01 美商聯思維公司 具有受控制色溫之動態照明裝置
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