CN-224227104-U - Device for independently supplying cooling water to single cavity of hot air valve

CN224227104UCN 224227104 UCN224227104 UCN 224227104UCN-224227104-U

Abstract

The utility model provides the technical field of hot air valve cooling, in particular to a device for independently supplying cooling water to a single cavity of a hot air valve, which comprises a hot air valve, a detection assembly, a soft water assembly, an industrial water assembly, an alarm assembly and a water changing assembly, wherein the hot air valve consists of a plurality of inner cavities, the detection assembly is arranged at the lower ends of the inner cavities of the hot air valve, the alarm assembly is connected with the detection assembly through a circuit, the water changing assembly is connected with the alarm assembly through a circuit, the water changing assembly is connected with the soft water assembly and the industrial water assembly, wherein the utility model changes the current situation of integrally supplying cooling water to the hot air valve through the mutual matching of the assemblies, realizes independent cooling water supply to a single cavity of the hot air valve, and simultaneously can realize the conversion of the cooling water from soft water to industrial water when water leaks from a certain cavity in the hot air valve, ensures the working state of the hot air valve and improves the working efficiency.

Inventors

MI HUICHAO
BAI YANDONG
WANG TAO
WANG YUANHUA

Assignees

吕梁建龙实业有限公司

Dates

Publication Date: 20260512
Application Date: 20250304

Claims (6)

1. A device for independently supplying cooling water to a single cavity of a hot blast valve, comprising: The hot air valve consists of a plurality of inner cavities; The detection assemblies are arranged at the lower ends of the inner cavities of the hot air valve, and the number of the detection assemblies corresponds to the number of the inner cavities; the soft water component controls soft water to enter and exit the inner cavities of the hot air valve; An industrial water assembly controlling the ingress and egress of industrial water into and out of the plurality of internal cavities of the hot blast valve; The alarm assembly is connected with the detection assembly through a circuit; the water changing assembly is connected with the alarm assembly through a circuit, and the water changing assembly is connected with the soft water assembly and the industrial water assembly.
2. The device for independently supplying cooling water in a single cavity of a hot blast valve according to claim 1, wherein the detecting assembly comprises a first detecting tube, a second detecting tube, a connecting tube, a floating block, a first guide rod, a second guide rod, a fixed contact, a movable contact and a balance rod, wherein the first detecting tube is connected with an inner cavity of the hot blast valve, the second detecting tube is arranged on one side of the first detecting tube, the first detecting tube is connected with the second detecting tube through the connecting tube, the first guide rod and the second guide rod penetrate through the side face of the second detecting tube, the front end of the first guide rod is provided with the fixed contact, the front end of the second guide rod is provided with the movable contact, and the balance rod is connected with the first detecting tube and the second detecting tube.
3. The device for independently supplying cooling water in a single cavity of a hot blast valve according to claim 2, wherein a buffer cavity is arranged at the bottom of the second detection tube, a water passing hole is arranged at the upper end of the buffer cavity, and the floating block is arranged at the upper end of the buffer cavity.
4. The device for independently supplying cooling water to a single cavity of a hot blast valve according to claim 1, wherein the soft water assembly comprises a soft water tank, a soft water inlet pipe, a soft water inlet valve, a soft water outlet pipe and a soft water waste water tank, the soft water tank is connected with the inner cavity of the hot blast valve through the soft water inlet pipe, the soft water inlet valve is arranged at the joint of the soft water inlet pipe and the inner cavity of the hot blast valve, the soft water waste water tank is connected with the inner cavity of the hot blast valve through the soft water outlet pipe, the industrial water assembly comprises an industrial water tank, an industrial water inlet pipe, an industrial water inlet valve, an industrial water outlet pipe and an industrial water waste water tank, the industrial water tank is connected with the inner cavity of the hot blast valve through the industrial water inlet pipe, and the industrial water inlet valve is arranged at the joint of the industrial water inlet pipe and the inner cavity of the hot blast valve, and the industrial water waste water tank is connected with the inner cavity of the hot blast valve through the industrial water outlet pipe.
5. The device for independently supplying cooling water in a single cavity of a hot air valve according to claim 4, wherein the water changing assembly comprises a first driving motor, a first driving gear, a first driven gear, a first three-way ball valve, a second driving motor, a second driving gear, a second driven gear, a second three-way ball valve, a third driving motor, a third driving gear and a third driven gear, the first driving motor, the second driving motor and the third driving motor are connected with the alarm assembly through a circuit, the first driving motor is arranged on one side of the hot air valve, the first driving gear is connected with an output end of the first driving motor, the first driven gear is meshed with the first driving gear, the first driven gear is connected with the first three-way ball valve, the first three-way ball valve is arranged at a position of a cavity of the hot air inlet pipe and the industrial water inlet pipe, the second driving motor is arranged on the other side of the hot air valve, the second driving gear is connected with an output end of the second driving motor, the first driven gear is connected with the third ball valve, the second driven gear is meshed with the third driven gear is arranged at a position of the soft water inlet pipe, and the third driven gear is meshed with the third three-way ball valve.
6. The device for independently supplying cooling water in a single cavity of a hot blast valve according to claim 1, wherein the alarm assembly comprises a power supply and a buzzer, and the power supply is connected with the buzzer through a circuit.

Description

Device for independently supplying cooling water to single cavity of hot air valve Technical Field The utility model relates to the technical field of hot air valve cooling, in particular to a device for independently supplying cooling water to a single cavity of a hot air valve. Background The special hot blast valve for the blast furnace hot blast stove is used in a high-temperature and high-pressure environment from the birth date. Under the modern technological conditions, the environmental characteristics of strong oxidation and strong acid are newly increased along with the gradual increase of the oxygen enrichment level of the blast furnace and the further increase of the combustion temperature. In order to improve the service life of the hot air valve, the design of the hot air valve is changed from a simple solid heat-resistant cast steel structure to a cavity heat-resistant cast steel structure wrapped by heat-insulating refractory materials in the industry, and cooling water flowing at high speed is introduced into the cavity to continuously carry away accumulated heat, so that the hot air valve is in a relatively low-temperature cooling environment to maintain the strength of heat-resistant cast steel. The heat-resistant steel casting with the cavity is generally divided into a plurality of independent inner cavities, most of the damage of the hot air valve is caused by the water leakage of a certain independent inner cavity, and once the water leakage of the certain inner cavity is encountered, the cooling water in the inner cavity is theoretically required to be converted into emergency industrial water used in an accident state from commonly used soft water, because a soft water system in a normal state is required to keep high tightness for a high-pressure closed circulating system, and once the water leakage of the certain inner cavity can cause the integral pressure loss of the system. At present, most of cooling water supply conversion modes adopted by hot blast valves are single-valve main pipe integral switching modes, once water leakage occurs in a certain independent inner cavity of a valve body, the whole water supply system of the whole valve body needs to be converted into accident emergency industrial water, and compared with soft water, the industrial water is higher in content of turbid calcium carbonate, and the heat exchange efficiency of the inner cavity surface is greatly reduced due to the deposition of turbid matters and calcium carbonate, so that new equipment problems and even huge safety problems are brought. There is thus an urgent need to redesign a new device for independent cooling water supply of a single chamber of a hot blast valve to solve the above problems. Disclosure of utility model The utility model provides a device for independently supplying cooling water to a single cavity of a hot air valve, which aims to solve the technical problems in the background technology. The utility model provides a device for independently supplying cooling water in a single cavity of a hot air valve, which comprises a hot air valve, a detection component, a soft water component, an industrial water component, an alarm component and a water changing component, wherein the hot air valve consists of a plurality of inner cavities, the detection component is arranged at the lower ends of the inner cavities of the hot air valve, the number of the detection components corresponds to the number of the inner cavities, the soft water component controls soft water to enter and exit the inner cavities of the hot air valve, the industrial water component controls industrial water to enter and exit the inner cavities of the hot air valve, the alarm component is connected with the detection component through a circuit, the water changing component is connected with the alarm component through a circuit, and the water changing component is connected with the soft water component and the industrial water component. Further, the detection assembly comprises a first detection tube, a second detection tube, a connecting tube, a floating block, a first guide rod, a second guide rod, a fixed contact, a movable contact and a balance rod, wherein the first detection tube is connected with an inner cavity of the hot air valve, the second detection tube is arranged on one side of the first detection tube, the first detection tube is connected with the second detection tube through the connecting tube, the first guide rod and the second guide rod penetrate through the side face of the second detection tube, the front end of the first guide rod is provided with the fixed contact, the front end of the second guide rod is provided with the movable contact, and the balance rod is connected with the first detection tube and the second detection tube. Further, a buffer cavity is arranged at the bottom of the second detection tube, a water passing hole is formed in the upper end of the buffer cavity, and the