Establish a modern command system
At the beginning of this year, the Municipal Public Security Bureau proposed to take the command center as a leader, to pay patrolmen and police officers as the backbone, and to use security guards, security guards, joint guards, and caregivers as the basis for preventing group forces. Relying on the idea of ​​building a public security prevention and control system combining points, lines, and areas with communities, internal units, and industry premises as fronts, it has raised more than 2 million yuan and completed the city's major street traffic signs and electronic monitoring facilities. 24-hour monitoring of the main street of the county and district; actively strived for the support of the municipal and county party committees and the government; established public security card points at all entrances and exits of the city; realized the city’s “four-door lockdownâ€; On the basis of the central office building, it has invested more than 4 million yuan. In June this year, the DRP electronic curtain system, video wall, led electronic display system, and remote monitoring system were established at the command center, which realized the city and county level public security organs. "Three units one." In case of an alarm, the command center may immediately issue a directive to the relevant unit to be approached by the nearest police and may follow up the control of the situation. In case of an emergency, the command center may instruct the relevant security card to intercept, or instruct the relevant police to carry out relevant work and realize The central command function of the command center forms a modern police command operation model with high command efficiency and quick response in the city. Since June, the city’s public security authorities responded quickly according to the command of the command center, and the absolute number of criminal suspects arrested on the spot has increased by 31.6% year-on-year. Woven security guard and control network
Since the beginning of this year, the Municipal Public Security Bureau has meticulously constructed a street-level public security prevention and control network led by patrol officers, a community-based public security prevention and control network led by community police, and an industry-position position control network led by public security departments within the four districts and four districts of the city. And so on, to achieve a full range of public security prevention and control without blind spots, no dead ends. At the same time, in order to give full play to the comprehensive effectiveness of public security prevention and control, they restructured the original patrol police team, enriched the police force of the patrols to the traffic police brigade and police station of the county bureau, and implemented the patrol and police integration within the city. The city was established. Eight patrol police brigades are responsible for security patrols in the main streets of the city, handling police, handling group incidents and riots, realizing a multi-pronged and versatile use of the police, and improving quick response capabilities and work effectiveness. Since the beginning of this year, the city’s streets and industrial establishments have dropped 33.1% and 42.8% year-on-year. Preventing tentacles from reaching the masses
The Shuangyashan City Public Security Bureau has strengthened the prevention and control of public security on the streets and at the same time, and has paid attention to deepening the prevention of tentacles to the community and extending it to every household. Strengthened the construction of community police services in urban areas, adjusted 64 policemen to the community, and achieved two policemen in a police or one (society) district in a (socialist) district; 101 policemen were enriched in rural police stations, and in rural village centers. A civilian police station was constructed, and a civilian police stationed in the village working system was implemented; 1667 people from the minimum security personnel were selected as full-time security guards and played an active role.
The police force followed the police and the service followed the masses to prevent them from following the case. Serious investigations and investigations were carried out on the circumstances of the city’s case-related crimes, and 60 key road sections and 24 key locations that required special strengthening of prevention and control were identified. They also gave full play to the active role of prevention and control of science and technology. All new residential districts in the city are planning to install electronic prevention and control (anti-theft alarm equipment, electronic monitoring equipment, etc.) facilities. Since the beginning of this year, the absolute number of burglary cases in the city has dropped by 24.6% year-on-year.
Fixed tube heat exchanger consists of tube bundle, tube plate, shell, head, folded plate, etc. Tube bundle ends fixed in the tube plate, the tube can be expanded (the inner hole of the tube with mechanical expansion, so that the tube wall from the inward to outward extrusion and fixed in the tube plate) or welded to the tube plate. The tube bundle is placed within the tube shell, with headers and flanges fixed at both ends. In this way, one fluid flows from the inside of the tube and the other from the outside. The space between the two heads and the tube plate is used to distribute or collect the fluids inside the tube. The two fluids do not mix with each other, but only exchange heat through the tube wall.
Advantages: simple and compact structure, high pressure resistance, low cost and easy to clean the tube side.
Disadvantages: Risk of blockage when the tube is damaged or needs to be replaced.
When the difference between the wall temperature of the tube bundle and the shell or the coefficient of linear expansion of the material is large, a large thermal stress will be generated in the shell and the tube bundle. A flexible compensation ring (also called expansion joint) should be installed on the shell to reduce the thermal stress.
Fixed Tube Heat Exchanger,Tubular Exchanger,Tema Heat Exchanger,Fixed Tube Sheet Heat Exchanger
Guangdong Jiema Energy Saving Technology Co.,Ltd , https://www.heatexchangerjiema.com