What are the safety precautions during gate installation?

1) The gate and embedded parts should be stacked smoothly, neatly and firmly supported, and should not be stacked in layers, and there should be a passage for suitable personnel and lifting equipment;

2) During the hoisting operation, no one shall stand under the component, and it is allowed to wear gloves and hold it right by hand when the component is close to the bond; Before the suspended components are not placed smoothly and reinforcement measures are taken, the hook shall not be removed at will; When the gate enters the slot and falls, the operator is forbidden to stand within the range of the bottom sill of the gate groove or pass underneath, and it is forbidden to climb with bare hands on the erected gate;

3) During the assembly operation, it is strictly forbidden to transfer the tool by throwing it in the air, and it is strictly forbidden to put your hand into the connecting surface or explore the screw hole;

4) When the open hole is operated, a railing and a safety warning sign should be set at the top of the orifice, and a curtain should be set up at the bottom range; During the operation, a special person should be assigned to monitor the top of the orifice, and it is strictly forbidden to throw any items into the hole;

5) When the fixed hinge bearing of the arc gate is installed, the construction platform should be constructed, and the safety net should be hung under the platform, and protective railings should be laid around it; The dislocation measurement of the inner wall of the movable and fixed hinge hole must be carried out in the static state of the two hinges, and it is strictly forbidden to explore by hand during the adjustment process;

6) When installing the bottom water stop operation at the orifice, a special person should be arranged to monitor the hoist and keep in touch with the operator at any time; Hang safety signs in the computer room, prohibiting anyone from starting the hoist; Operators are not allowed to drill at the bottom of the door leaf;

7) During the gate test and operation, no one shall touch the mechanical operation part of the equipment, and the head and hand shall not reach into the mechanical travel range for observation and exploration; When the system fails, it should be stopped immediately to find out the cause, and it is strictly forbidden to check and adjust the equipment under the operating conditions.

The cast iron gate should be installed as a whole, and the steel gate slot should be flat and straight.

Here are some of the well-known brands recognized in the gate industry that are widely recognized and have a great reputation. While rankings may vary depending on time and market conditions, the following brands are generally considered to be among the top in the valve industry:

The following influential first-line brands of water system valves and industrial valves can be used as a reference, but only for reference to Kaiqing test: Suzhou Neway Valve, Shanghai Guanlong Valve, Shanghai Qizhong Valve, Sanhua, Su Yan, Shentong, Su Valve, Nanfang, Jiang.

First, the word Yao. The above manufacturers are only estimates and references, and the specific situation may vary or fluctuate at any time due to changes in a series of factors such as changes in the market, the size of the competition pattern, and the stability of product quality. As an indispensable key device in industrial production and civil facilities, the quality and reputation of the valve brand directly affect the satisfaction and trust of the user.

These brands are known in the valve industry for their innovative technology, high-quality products and reliability. It is important to note that the market and industry are evolving rapidly, and different rankings may vary depending on time and region. For the most up-to-date ranking information, it is recommended to refer to industry reports, professional organizations or market research data for more detailed and accurate information.

Dear, I am glad to answer for you: Answer: What are the safety precautions for closing operations, mainly as follows: 1) Before closing operation, first of all, check that the universal circuit breaker has been fully (from cold standby) to hot standby. It includes:

The isolation switches on both sides of the universal circuit breaker have been in the rear position, the main and auxiliary relay protection devices of the universal circuit breaker have been put into accordance with the regulations, and the closing energy and operation control energy have been put in. The signal indication of each position is correct. 2) Operate the universal circuit breaker control handle, pay attention to the appropriate force.

The control handle is twisted to the closing position, and the instantaneous impact is observed in the instrument indication (there is no change in the empty ** road), and it can only be returned after the red light is on, and it cannot be returned too fast to make the universal circuit breaker too late to close. 3) After the operation is closed, check the universal circuit breaker closing circuit ammeter pointer back to zero, and should conduct on-site inspection of the measuring instrument, signal indication and mechanism position. For example:

The indication of the ammeter and power meter when the load situation of the circuit is carried out, and the indication of the opening and closing position indicators, etc., so as to make the correct judgment of the hall sign with good operation results.

The construction of small and medium-sized sluice gate grooves can be carried out by two methods: pre-embedded one-time molding method or first-left groove tooth pouring second-phase concrete. The one-time molding method is to drill the guide rail in advance and then pre-embed it on the inside of the door groove template. When the pier is poured, the guide rail is poured into the concrete.

The second-phase concrete method is to set aside a one-key slot wider than the door groove at the position of the door groove when pouring the first phase of concrete, and embed some open bolts or anchor bars in the groove as the fixed point when installing the guide rail; After the first phase of concrete reaches a certain strength, fix the position of the guide rail with bolts or electric welding, and then use the second phase of concrete to backfill the reserved groove after the adjustment is correct. The door groove and guide rail must be straight and correct, so they should be corrected with a hammer at any time during the erection mold and pouring process. When the door groove is high, the hammer is easy to shake up and down, and an oil drum can be placed at the lower part of the hammer to immerse the vertical ball in the machine-ground bright brigade oil with large viscosity.

The bottom sill of the gate is located on the bottom plate of the gate, and when the bottom plate is poured in the early stage of construction, the bottom plant often cannot be processed and supplied on time, so the groove is often left on the bottom plate of the gate for pouring the second phase of concrete.

To sum up, the sluice gate is a common water conservancy project, if the quality is not strictly controlled in the construction process, the quality of the project will be reduced, and the future management will have a certain impact. Therefore, the quality of small and medium-sized sluice construction projects must not be sloppy.

1. Strictly follow the reservoir dispatching procedures and gate operation procedures.

To use the gate, the operator must be specially trained for this type of work, pass the examination and hold the job certificate before operating, and shall not drink alcohol during work;

2. When the gate is running, it should be avoided to stay on the opening that is prone to vibration;

3. During the discharge period, pay attention to the changes in the upstream and downstream water levels and the water flow pattern; When bending, pay attention to whether there are boats or other floating objects near the gate to prevent possible collision with the gate;

4. When the multi-hole gate needs to be opened, it should be opened symmetrically from the middle hole to both sides, and closed symmetrically from both sides to the middle when closed;

5. When the gate needs to be opened for a long time, a locking device should be added.

Hope it helps, thank you!

Sluice gate. 1. When opening and closing the gate, attention should be paid to the upper and lower limit positions of the gate, and the limit should not be exceeded, so as not to damage the gate or the hoist.

2. If there is any abnormal situation in the process of opening and closing, the gate should be stopped immediately and repaired in time.

3. When the gate is closed, it is 10 cm away from the bottom of the gate, pause for 2 minutes, let the torrent wash away the debris in the bottom door groove, and then close the gate.

Hoist. 1. The operator must master the structure, performance and operation method of the chain lifting stove hoist, and have certain mechanical knowledge to ensure the normal operation of the machine.

2. Before operation, conduct a comprehensive inspection of the hoist, whether the lubrication of each part is good, and whether the bolts are loose. Check whether the power supply line is connected and whether the switch is good when the electric opening and closing.

3. When the electric answering front is running, the operator shall not leave the scene, and stop the machine immediately if the shed is found to be a problem.

4. When the hoist is repaired, the load must be removed.

5. When in use, it is necessary to inject lubricating oil from the oil injection hole at any time, and always maintain sufficient lubricating oil, and the screw should be regularly removed from the oil scale and coated with new oil to prevent corrosion.

1.Be sure to follow the wiring diagram when wiring. After connecting the wire, test whether the ground sense is normal, when the ground sense red light flashes, use an iron plate to put it above the coil, take away the iron plate when the red light is always on, and the product is normal if the barrier automatically falls.

2.When wiring the ground sense coil, cut the ground into a 10cm deep, square nest, cut the four corners into a 45-degree oblique angle (as shown in the figure on the right), put the ground sense coil (1 square millimeter) into a circle, a total of 6-8 layers, the coil must be pressed between each layer, and there should be no joints in the coil. The output end of the ground sense coil is twisted to the barrier, and the distance is as short as possible, and the nest is sealed with dry cement after connection.

Note: For high-temperature copper wires with a cross-sectional area of square millimeters, the size of the cross-sectional area of the wire does not have a great impact on the induction intensity.

3.When the induction coil is wound and energized, the coil will produce low-frequency oscillations. When metal enters the coil, the magnetic field lines are affected by the magnetic field and the magnetic field is weakened and picked up by the magnetoelectric sensor, resulting in corresponding actions.

The induction strength of the induction coil has a lot to do with the number of turns of the coil and the shape of the coil. The number of turns of the coil is too large, and the input inductive resistance is large, resulting in an open circuit; The number of turns is too small, and the input inductive reactance is small, resulting in a short circuit. In these two cases, the working indicator of the magnetoelectric sensor will flash rapidly.

The general number of turns is 6 to 8 turns.

4.When the barrier is debugged, it is short-circuited between "up" and "ground", and the gate lever is automatically raised, so the barrier is normal.

5.The card reader is connected with an 8-core shielded wire according to the drawing, and be careful not to break the wire when wiring.

6.The power supply of the controller is 12V DC and the power supply of the card reader is 14V. Be careful not to make a mistake.

7.The ground induction coil is installed under the barrier, and the distance from the barrier to the card reader is 3-5 meters.