The main features of Beijing Qitian Shengma Filter Equipment Technology Co., Ltd. Pipe self-cleaning filter features:
a pipe self-cleaning filter uses multiple filter cartridges to filter, the effective filtration area is large, and the pressure loss is small. The designed filtration area is 3 to 5 times the area of ​​import and export.
b. Easy maintenance and maintenance: setting up manhole for maintenance, convenient loading and unloading filter cartridge, backwashing filter
c. The structure is filtered by multiple filter cartridges and cleaned one by one, and the water is supplied without interruption during cleaning.
d. Program control: The parameters of the system can be set according to the actual situation of the user site.
e. Advanced control system: The control system has high precision and can adjust its working mode and operating state according to different water quality to improve its ability to adapt to water quality.
f. Convenient control mode: differential pressure/time simultaneous control or separate control, can be arbitrarily selected according to actual working conditions and requirements, automatic operation; at the same time set manual / automatic transfer switch, control mode can be preset, and gas interlock,
g. The backwashing filter is provided with local control, and if necessary, a remote control switch can be provided to realize local operation and remote control operation.
h. The backwash filter has functions such as running status output and fault alarm output to ensure that the equipment is used under safe and reliable conditions.
function
It is mainly used for purifying water, especially in the field of microfiltration with high water quality requirements. The fully automatic recoil filter should remove sediment, clay, rust, suspended solids, algae, biological slime, corrosion products and large Molecular bacteria, organic matter and other tiny particles and other impurities, to achieve the purpose of water purification.
Technical characteristics
A, The filtration precision is high and the effluent water quality is stable.
2, through its own retrieval and strain function, automatic backwashing, can cope with unstable water quality fluctuations, no need to dry
C,, The control system is sensitive and accurate, and can be used according to different water sources and filtration precision. 4. The cleaning is efficient and thorough, the system is recoverable, and the filter can be used for life without replacement.
5, Backwashing does not interrupt normal water production, continuous operation, stable and reliable.
D. Backwashing has a short duration, and the backwashing water consumption is only 0.001% to 0.002% of the normal water production, saving water, saving electricity and saving energy.
7, The structure design is compact and reasonable, the floor space is small, and the installation movement is flexible and convenient.
E. The equipment has less wearing parts, no consumables, low operation and maintenance costs, and simple operation and management.
9, It has a wide range of applications and can be applied to different raw water quality and water requirements.
Technological innovation
1 Beijing Qitian Shengma Filtration Equipment Technology Co., Ltd. adopts 316L stainless steel sintered filter for the first time, with high strength, high precision and corrosion resistance.
2. Beijing Qitian Shengma Filter Equipment Technology Co., Ltd., The patented internal mechanical structure realizes the high-pressure backwashing function in the true sense. The external high-pressure backwashing of the filter screen combined with the internal self-priming and sewage discharge can easily and thoroughly remove the impurities trapped by the filter, and clean the dead space without any dead angle. No attenuation, guarantees filtration efficiency and long service life.
3, The cleaning differential pressure signal is transmitted by differential pressure transmitter, which overcomes the shortage of differential pressure switch error.
4The transmission is built-in, sealed and isolated from the overcurrent components, and designed with trip protection to prevent the motor or the body.
5 The sewage outlet is hydraulically sealed and does not require a solenoid valve or other fragile seals. It is simple and practical.
6 The inlet and outlet flanges are designed as movable structures, which can be rotated and adjusted to facilitate the on-site installation.
7 The internal anti-corrosion uses special non-toxic anti-corrosive materials, which have good weather resistance, acid and alkali resistance and salt resistance.
8, The electrical system uses an integrated control mode for remote control.
main feature
1, The original filter shell is integrally formed and processed to avoid various dripping caused by welding of steel filter shells; the high-strength ductile iron material has excellent anti-corrosion performance and prolongs the service life of the product;
2, Proprietary filter design and manufacturing technology, high-precision filter elements will never wear;
3, Reliable intelligent control, automatic operation of filtration, cleaning and sewage discharge, achieving unattended operation.
4, Ling's product structure and function design, compact structure, large filtration area, high dirt holding capacity, tube
5, Optimized control mode design, short backwashing time, less water consumption for sewage discharge, saving water resources;
6, The product line covers various flow rates and precision ranges, and has various structural forms to adapt to complex user conditions;
7, The parameters can be adjusted according to the actual working conditions. Beijing Qitian Shengma Filter Equipment Technology Co., Ltd. is easy to operate, maintenance-free and has a long service life.
Cleaning principle:
1, Cleaning timing, backwashing, draining, cleaning, and draining, can set the time to 2-24 hours. Beijing Qitian Shengma Filtration Equipment Technology Co., Ltd., when the time is up, the electric actuator opens the drain valve, the filter performs sewage for 30-60 seconds, then the electric actuator will turn the butterfly valve 90° to block the filter cartridge to change the water flow path. Perform backwashing for 30-60 seconds. Turn the butterfly valve to reset, continue to drain for 3-5 seconds, then close the drain.
2. The pressure difference control blowdown pressure difference controller action value can be set to 0.03-0.07MPa. When the differential pressure before and after the filter reaches the set value of the differential pressure controller, the differential pressure controller acts. Beijing Qitian Shengma Filter Equipment Technology Co., Ltd. Company, the filter drain valve is open, 30-60 seconds to end, the steering butterfly valve is reset, continue to drain for 3-5 seconds, close the drain valve.
3, manual control through the control box button, you can directly control the cleaning and sewage.
Beijing Qitian Shengma Filter Equipment Technology Co., Ltd. Features of the pipeline filter:
a pipeline filter is filtered by multiple filter cartridges, which has a large effective filtration area and low pressure loss. The designed filtration area is 3 to 5 times the area of ​​import and export.
b. Pipeline filter is easy to repair and maintain: set up manhole, easy to load and unload filter cartridge, backwash filter
c. The pipe filter filter adopts the structure of multi-filter cartridge filtration and filter-by-filter cleaning, and the water supply is uninterrupted during cleaning.
d. Pipeline filter program control: The parameters of the system can be set according to the actual situation of the user site.
e. Pipeline filter advanced control system: The control system has high precision and can adjust its working mode and operating state according to different water quality to improve its ability to adapt to water quality.
f. Convenient control mode of pipeline filter: differential pressure/time control or separate control, can be arbitrarily selected according to actual working conditions and requirements, automatic operation; also set manual / automatic transfer switch, control mode can be preset, and Gas interlocking,
g. The pipeline filter is provided with local control, and if necessary, a remote control switch can be provided to realize local operation and remote control operation.
h. The pipeline filter has functions such as running status output and fault alarm output to ensure that the equipment is used under safe and reliable conditions.
Ventilator block diagram
One. Main mechanical ventilation modes
(1) Intermittent Positive Pressure Ventilation (IPPV): positive pressure in the inspiratory phase and zero pressure in the expiratory phase. 1. Working principle: The ventilator generates positive pressure in the inspiratory phase and presses the gas into the lungs. After the pressure rises to a certain level or the inhaled volume reaches a certain level, the ventilator stops supplying air, the exhalation valve opens, and the patient's thorax Passive collapse of the lungs and exhalation. 2. Clinical application: Various patients with respiratory failure mainly based on ventilation function, such as COPD.
(2) Intermittent positive and negative pressure ventilation (IPNPV): the inspiratory phase is positive pressure and the expiratory phase is negative pressure. 1. How it works: The ventilator works both in the inspiratory and exhaled phases. 2. Clinical application: Expiratory negative pressure can cause alveolar collapse and cause iatrogenic atelectasis.
(3) Continuous positive pressure airway ventilation (CPAP): Refers to the patient's spontaneous breathing and artificial positive airway pressure during the entire respiratory cycle. 1. Working principle: Inspiratory phase gives continuous positive pressure air flow, and exhalation phase also gives a certain resistance, so that the airway pressure of inhalation and exhalation phases are higher than atmospheric pressure. 2. Advantages: The continuous positive pressure airflow during inhalation is greater than the inspiratory airflow, which saves the patient's inhalation effort, increases FRC, and prevents the collapse of the airway and alveoli. Can be used for exercise before going offline. 3. Disadvantages: great interference to circulation, large pressure injury of lung tissue.
(4) Intermittent command ventilation and synchronized intermittent command ventilation (IMV / SIMV) IMV: There is no synchronization device, the ventilator air supply does not require the patient's spontaneous breathing trigger, and the time of each air supply in the breathing cycle is not constant. 2. SIMV: There is a synchronization device. The ventilator gives the patient a commanded breath according to the pre-designed breathing parameters every minute. The patient can breathe spontaneously without being affected by the ventilator. 3. Advantages: It exerts its ability to regulate breathing while offline; it has less influence on circulation and lungs than IPPV; it reduces the use of shock medicine to a certain extent. 4. Application: It is generally considered to be used when off-line. When R <5 times / min, it still maintains a good oxygenation state. You can consider off-line. Generally, PSV is added to avoid respiratory muscle fatigue.
(5) Mandatory ventilation per minute (MMV) When spontaneous breathing> preset minute ventilation, the ventilator does not command ventilation, but only provides a continuous positive pressure. 2. When spontaneous breathing is less than the preset minute ventilation volume, the ventilator performs command ventilation to increase the minute ventilation volume to reach the preset level.
(6) Pressure Support Ventilation (PSV) Definition: Under the prerequisite of spontaneous breathing, each inhalation receives a certain level of pressure support, increasing the patient's inhalation depth and inhalation volume. 2. How it works: The inspiratory pressure begins with the patient's inspiratory action, and ends when the inspiratory flow rate decreases to a certain level or the patient attempts to exhale hard. Compared with IPPV, the pressure it supports is constant, and it is adjusted by the feedback of the inspiratory flow rate. Compared with SIMV, it can get pressure support for each inhalation, but the level of support can be set according to different needs. 3. Application: SIMV + PSV: used for preparation before off-line, can reduce breathing work and oxygen consumption Indications: Exercise the ventilator; prepare before going offline; the ventilator is weak due to various reasons; severe flail chest causes abnormal breathing. 5. Note: Generally not used alone, it will produce insufficient or excessive ventilation.
(7) Volume Supported Ventilation (VSV): Each breath is triggered by the patient's spontaneous breathing. The patient can also breathe without any support and can reach the expected TV and MV levels. The ventilator will allow the patient to be truly autonomous Breathing also applies to preparations before going offline.
(8) Capacity control of pressure regulation
(IX) Biphasic or bilevel positive pressure ventilation How it works: P1 is equivalent to inspiratory pressure, P2 is equivalent to breathing pressure, T1 is equivalent to inspiratory time, and T2 is equivalent to exhalation time. 2. Clinical application: (1) When P1 = inspiratory pressure, T1 = inspiratory time, P2 = 0 or PEEP, T2 = expiratory time, which is equivalent to IPPV. (2) When P1 = PEEP, T1 = infinity, P2 = 0, T2 = O, which is equivalent to CPAP. (3) When P1 = inspiratory pressure, T1 = inspiratory time, P2-0 or PEEP, T2 = desired controlled inhalation cycle, equivalent to SIMV.
Medical Positive Pressure Breathing Machine
Positive Pressure Breathing Machine,Continuous Positive Pressure Ventilation,Intermittent Positive Pressure Ventilation,Intermittent Positive Pressure Breathing Machine
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