阅读说明：本技术 一种高温设备防暑降温自动控制方法及其装置 (A kind of high-temperature service reducing temperature of heatstroke prevention autocontrol method and its device ) 是由 李文 王振坤 赵宁 陈鼎臻 兰向军 凤建刚 刘杰 于 2018-05-25 设计创作，主要内容包括：本发明公开了一种高温设备防暑降温自动控制方法及其装置,包括仪表风输送管、闸阀、空气过滤减压阀、两位三通电磁换向阀、环形阵列节流孔导向管、高温设备、表面热电阻、智能数字化报警仪；通过表面热电阻测量高温设备表面温度,并传输到智能数字化报警仪的控制器,控制器计算温度值并与预先设定的高温报警值进行比较,如果温度比高温报警值高,仪表风向管给高温设备吹扫降温,如果测量温度比高温报警值低,两位三通电磁换向阀失电切断仪表风不再给设备降温。本发明提供了一种适用于煤化工、石油化工、冶炼等行业高温设备防暑降温的自动控制方法及装置,其在提高自动化水平的同时也降低能源浪费,还适用于低温设备的防冻如结霜、结冰等现象。(The invention discloses a kind of high-temperature service reducing temperature of heatstroke prevention autocontrol method and its devices, including instrument wind delivery pipe, gate valve, air filtration pressure reducing valve, two-bit triplet solenoid directional control valve, annular array throttle orifice guide pipe, high-temperature service, surface thermal resistor, intelligent digitalized alarm；High-temperature service surface temperature is measured by surface thermal resistor, and it is transferred to the controller of intelligent digitalized alarm, controller calculates temperature value and is compared with preset high temperature alarm value, if temperature is higher than high temperature alarm value, instrument wind direction pipe is purged to high-temperature service to cool down, if it is lower than high temperature alarm value to measure temperature, two-bit triplet solenoid directional control valve power loss cuts off instrument wind and no longer cools down to equipment.The present invention provides a kind of autocontrol methods and device suitable for the reducing temperature of heatstroke prevention of the industries high-temperature service such as coal chemical industry, petrochemical industry, smelting, phenomena such as it also reduces energy waste while improving automatization level, applies also for antifreeze such as the frosting of Cryo Equipment, freezes.)

The automatic control device 1. a kind of high-temperature service is prevented heatstroke and lower the temperature, it is characterised in that: described device includes instrument wind delivery pipe (1), gate valve (2), air filtration pressure reducing valve (3), two-bit triplet solenoid directional control valve (4), annular array throttle orifice guide pipe (5), High-temperature service (6), surface thermal resistor or thermocouple (7), intelligent digitalized alarm (8)；The gate valve (2) is mounted on the instrument After table wind delivery pipe (1), instrument wind is cut off when automatic control device failure；The air filtration pressure reducing valve (3) is mounted on lock Valve (2), which exports, realizes that instrument wind pressure is adjusted and impurity, moisture filter on gas source pipe；The two-bit triplet solenoid directional control valve (4) Entrance connects air filtration pressure reducing valve (3) outlet gas source pipe, and outlet connects the entrance of the annular array throttle orifice guide pipe (5), leads Annular array throttle orifice (9) are provided on pipe (5)；The surface thermal resistor or thermocouple (7) are mounted on high-temperature service (6) table Face；Intelligent digitalized alarm (8) the receiving surface thermal resistance or the temperature of thermocouple (7) measurement.

The automatic control device 2. a kind of high-temperature service described in accordance with the claim 1 is prevented heatstroke and lower the temperature, it is characterised in that: described two The 24V DC voltage that three-way solenoid valve (4) receives intelligent digitalized alarm (8) output carries out the switch control of instrument wind System.

The automatic control device 3. a kind of high-temperature service described in accordance with the claim 1 is prevented heatstroke and lower the temperature, it is characterised in that: the intelligence The temperature signal of digital alarming instrument (8) receiving surface thermal resistance or thermocouple (7), and exported according to the algorithm comparison of setting The switch motion of 24V DC voltage control two-bit triplet solenoid directional control valve (4).

The automatic control device 4. a kind of high-temperature service described in accordance with the claim 1 is prevented heatstroke and lower the temperature, it is characterised in that: the annular The shape of array throttle orifice guide pipe (5) has arc-shaped, linear, tree-shaped shape, snakelike.

5. according to a kind of any high-temperature service reducing temperature of heatstroke prevention automatic control device of claim 1-4, it is characterised in that: institute It states and is distributed the annular array throttle orifice (9) on annular array throttle orifice guide pipe (5), the shape of throttle orifice (9) is similar to loudspeaker.

A kind of autocontrol method 6. high-temperature service is prevented heatstroke and lower the temperature, it is characterised in that: the control method detailed implementation: root According to the requirement of the high-temperature service (6) operating ambient temperature, show that alarm (8) set high temperature alarm value in intelligent digital in advance, The high-temperature service measured (6) temperature inversion is 4-20mA analog signal transmission to intelligence number by surface thermal resistor or thermocouple (7) Word shows the controller of alarm (8), and via controller calculates automatically shows alarm in intelligent digital for temperature value real-time display (8) LCD panel, while calculated result and preset high temperature alarm value carry out logical comparison operation, if temperature value is high In setting value, intelligent digital shows that its relay normally open contact being internally integrated is connected in alarm (8), and relay is closed 24V DC voltage is conveyed to two-bit triplet solenoid directional control valve (4), which obtains electric opening instrument wind purging high-temperature service (6) and carry out Cooling；When high temperature alarm value of the temperature that surface thermal resistor or thermocouple (7) detect lower than setting, intelligent digital display alarm Instrument (8) breaking inner integrated relay opens normal contact, and two-bit triplet solenoid directional control valve (4) power loss cutting instrument wind no longer gives high temperature Equipment (6) purging cooling.

Technical field

The invention belongs to industrial automation instruments and system regions, and in particular to a kind of automatic control of high-temperature service reducing temperature of heatstroke prevention Method and device thereof processed.

Background technique

It is exactly to set to each type high temp that the industrial circles such as coal chemical industry, power plant and petrochemical industry enter summer major tasks every year It is standby to prevent heatstroke and lower the temperature, prevent high temperature burn electronic component, signal cable and lead to unnecessary parking accident.With regard to the author institute In 210-270 DEG C of surface temperature of unit turbocompressor turbine, all kinds of probes such as instrument displacement, the vibration of the installation of turbine side are long-term Work leads to its electronic component distorted signals, signal cable high temperature ageing damage situation, causes to pop one's head in hyperthermia radiation environment Failure causes unit mistakenly stop vehicle；There are also height, middle pressure steam pipe network, reactor feed inlet and outlet valves usually in about 550 DEG C of high temperature rings Border operation, 180-220 DEG C of temperature range of valve bonnet, attachmentes and the valve such as valve positioner, solenoid valve, gas control amplifier Executing agency easily causes circuit board to burn under hyperthermia radiation for a long time, and sealing ring aging seal failure, cable high-temperature is burnt The failure of difficulty or ease anticipation.Since the various Static Equipments such as compressor, pump and valve are run in outdoor environment, air-conditioning is used It is infeasible that refrigeration measure, which carries out cooling,.Usual situation controls factory's wind with hand valve or instrument wind purges high-temperature service Cooling, but the low not only labor intensive of this method the degree of automation also waste of energy.In addition, being blown using axial flow blower to high-temperature service The measure of wind is prevented heatstroke and lower the temperature, the disadvantages of this method: first is that since chemical plant processing medium is mostly inflammable and explosive substances, axis stream wind Machine causes the hidden danger of fire in the presence of electric leakage；Second is that coal fired power generation pollution is high also to waste coal natural resources.Therefore how effective It prevents heatstroke and lower the temperature to factory's outdoor high temperature equipment and guarantees that its safe and stable operation is a very important project.

Summary of the invention

The technical problem to be solved in the present invention is to provide a kind of high-temperature service reducing temperature of heatstroke prevention autocontrol method and its device, It is not only able to achieve industrial outdoor high ambient temperature equipment and prevents heatstroke and lower the temperature automatically purpose, while being readily applicable to Cryo Equipment anti-caking Frost, the automatic control to freeze.

To achieve the goals above, the present invention adopts the following technical scheme that.

A kind of high-temperature service reducing temperature of heatstroke prevention autocontrol method and its device, including gate valve, air filtration pressure reducing valve, two Three-way solenoid valve, surface thermal resistor, intelligent digital show alarm and annular array throttle orifice guide pipe.Gate valve is mounted on Instrument wind gas source pipe upstream is used to cut off instrument wind when the plant failure, and gate valve exports gas source pipe and installs air filtration pressure reducing valve, The effect of air filtration pressure reducing valve: first is that adjusting bleed pressure size；Second is that filtering instrument wind impurity and removing moisture.Air mistake Filter pressure reducing valve output end gas source pipe connects conveying and stoppage in transit of the two-bit triplet solenoid directional control valve for remote auto control instrument wind.Two Position three-way solenoid valve outlet connects annular array throttle orifice guide pipe, the instrument for installing to high-temperature service ontology and thereon Attachment cooling, the effect of annular array throttle orifice: first is that reducing the instrument wind pressure for flowing through throttle orifice, accelerating flow velocity, so that stream Instrument wind after crossing throttle orifice is spread rapidly, is increased purging area and is accelerated cooling rate；Pressure stabilization function has been vibrated second is that reducing；Three It is to reduce that instrument wind is unnecessary has wasted effect of energy.Surface thermal resistor is mounted on high-temperature service, by the temperature of measurement Degree is transferred to intelligent digital and shows that alarm is shown, and shows that alarm sets high temperature alarm value in intelligent digital, it is ensured that temperature Instrument wind is automatically turned on when reaching setting value and is purged cools down to high-temperature service.

The high-temperature service reducing temperature of heatstroke prevention autocontrol method realizes that process is: the high temperature that surface thermal resistor will measure is set Standby temperature analog signal is transferred to the controller that intelligent digital shows alarm, and controller calculates simultaneously automatically according to the algorithm of setting It shows that alarm LCD panel is shown in intelligent digital in real time, while temperature value is shown that alarm is preparatory with intelligent digital automatically The high temperature alarm value of setting is compared, if temperature is more than the high temperature alarm value of setting, intelligent digital shows collection in alarm At relay normally open contact be attracted conducting output 24V DC voltage be transferred to two-bit triplet solenoid directional control valve, which obtains Electricity opens the air inlet of instrument air hose, and instrument wind enters annular array throttle orifice guide pipe and starts to give high-temperature service purging cooling, when setting When standby temperature is reduced to set temperature value or less, intelligent digital shows that the relay normally open contact integrated in alarm disconnects, two Position three-way solenoid valve power loss closes the instrument wind for entering annular array throttle orifice guide pipe.

There is following beneficial effect using the present invention.

1, a kind of high-temperature service reducing temperature of heatstroke prevention autocontrol method and its device of the present invention, are shown with intelligent digital Alarm is executing agency as controller, two-bit triplet solenoid directional control valve, and surface thermal resistor is temperature detecting element, instrument wind Uninterrupted is controlled device and equipment surface temperature is that controlled variable constitutes a negative feedback closed loop automatic control loop, real Now to the automatic control of outdoor high temperature equipment reducing temperature of heatstroke prevention, the labor intensity of worker is reduced, improves sunstroke prevention cooling device certainly Dynamicization is horizontal.

2, a kind of high-temperature service reducing temperature of heatstroke prevention autocontrol method and its device of the present invention, are realizing instrument wind certainly Energy waste is reduced while dynamic control reducing temperature of heatstroke prevention, avoiding leaking electricity using axial flow blower causes the accidents such as fire, personnel's electric shock Occur, realizes the requirement and energy-saving purpose of factory safety, clean manufacturing.

3, a kind of high-temperature service reducing temperature of heatstroke prevention autocontrol method and its device of the present invention, in addition to being set for high temperature Standby reducing temperature of heatstroke prevention is outer, it may also be used for the problems such as solving the frosting of Cryo Equipment, freezing, i.e., for the antifreeze of equipment.

Detailed description of the invention

Fig. 1 is a kind of operation principle schematic diagram of high-temperature service reducing temperature of heatstroke prevention automatic control device of present example.

Fig. 2 is a kind of control principle drawing of high-temperature service reducing temperature of heatstroke prevention autocontrol method of present example.

Fig. 3 is a kind of high-temperature service reducing temperature of heatstroke prevention automatic control device annular array throttle orifice guide pipe of present example Structural schematic diagram.

In figure: 1- instrument wind air inlet pipe, 2- gate valve, 3- air filtration pressure reducing valve, 4- two-bit triplet solenoid directional control valve, 5- ring Shape array throttle orifice guide pipe, 6- compressor turbine, 7- surface thermal resistor, 8- intelligent digital show alarm, 9- throttle orifice.

Specific embodiment

Fig. 1 is shown using a kind of operation principle schematic diagram of high-temperature service sunstroke prevention automatic control device of the present invention.The dress Set including bore be 1 " instrument wind air inlet pipe 1, gate valve 2, air filtration pressure reducing valve 3, two-bit triplet solenoid directional control valve 4, annular Array throttle orifice guide pipe 5, high-temperature service (referred to hereinafter as compressor turbine) 6, surface thermal resistor or thermocouple 7, intelligent digital are aobvious Show alarm 8.After the gate valve 2 is mounted on instrument wind air inlet pipe 1, when air filtration pressure reducing valve 3 or two-bit triplet electromagnetic switch When 4 failure of valve, gate valve 2 is turned off manually and cuts off instrument wind.Air filtration pressure reducing valve 3 is mounted on gate valve 2 and exports on gas source pipe, is used for Regulation meter wind pressure size and filtering instrument wind impurity and moisture.Two-bit triplet solenoid directional control valve 4 is mounted on air filtration and subtracts Pressure valve 3 exports gas source pipe, opens or closes instrument wind for remote auto control.Annular array throttle orifice guide pipe 5 is mounted on On compressor turbine 6, the outlet gas source pipe of a termination two-bit triplet solenoid directional control valve 4 of annular array throttle orifice guide pipe 5, separately The sealing of outer one end, its shape according to vibration probe, the displacement probe distribution form installed on compressor turbine 6 have linear, The shapes such as arc-shaped, tree-shaped shape, snakelike are provided with annular array throttle orifice on the annular array throttle orifice guide pipe 5 shown in Fig. 3 9, the small outer diameter great achievement horn mouth of 9 internal diameter of throttle orifice.Surface thermal resistor or thermocouple 7 are mounted on 6 surface of compressor turbine, will measure Temperature inversion be 4-20mA electric signal transmission to intelligent digital show alarm 8 controller, intelligent digital display alarms Instrument 8 exports 24V d. c. voltage signal to two-bit triplet solenoid directional control valve 4, realizes that remote auto opens or closes instrument wind purging Compressor turbine 6 achievees the purpose that prevent heatstroke and lower the temperature automatically.

Referring to attached drawing 2, a kind of high-temperature service reducing temperature of heatstroke prevention autocontrol method realizes compressor turbine by the following method 6 automatically control cooling.Heatproof requirement is run according to compressor turbine 6, shows that the setting of 8 panel of alarm is high in intelligent digital in advance Warm alarming value converts 4-20mA analog telecommunications for temperature value with 6 temperature of surface thermal resistor or 7 measured compressed machine turbine of thermocouple It number is transported to the controller that intelligent digital shows alarm 8, via controller is calculated automatically by temperature value real-time display in intelligent number Word shows the LCD panel of alarm 8, while carrying out logical comparison operation with preset high temperature alarm value, if temperature value Higher than high temperature alarm value, intelligent digital shows that the relay normally open contact that it is internally integrated is connected in alarm 8, and relay closure will 24V DC voltage is transported to two-bit triplet solenoid directional control valve 4, which obtains electric opening instrument wind and be transported to annular array throttling Hole guide pipe 5, instrument wind flow through throttle orifice 9 and cool down to compressor turbine 6.It is measured when surface thermal resistor or thermocouple 7 When temperature is lower than the high temperature alarm value set, intelligent digital shows that alarm 8 disconnects the normally opened contact of relay, two-bit triplet electricity 4 power loss of magnetic reversal valve cuts off instrument wind, no longer cools down to compressor turbine 6.After if instrument wind turned off a period of time, surface heat Resistance or thermocouple 7 detect that the temperature value of compressor turbine 6 is increased to the high temperature alarm value of setting again when, intelligent digital is shown Alarm 8 is connected the relay output 24V DC voltage that it is internally integrated and two-bit triplet solenoid directional control valve 4 is made to obtain electric opening instrument Table wind sweeps compressor turbine 6 and cools down again, works in cycles in this way.