CN219482148U - Vacuum exhaust dryer for high-speed water cooling line of corrugated pipe - Google Patents

Abstract

The utility model is applicable to the technical field of vacuum exhaust dryers, and provides a vacuum exhaust dryer for a high-speed water-cooling line of a corrugated pipe. Comprising the following steps: the device comprises a device body, an exhaust pipe and a device support bottom, wherein the device body comprises a body shell, an air inlet is formed in the upper portion of the side face of the body shell in a penetrating manner, a cooling pipe is spirally arranged in the body shell, the cooling pipe comprises a water inlet and a water outlet, the top of the body shell is provided with the exhaust pipe in a penetrating manner, a secondary filtering device is arranged in the exhaust pipe, the bottom of the body shell is fixedly connected with the device support bottom, the bottom of the device support bottom is provided with the water outlet, and a drain valve is fixedly connected below the water outlet; therefore, the utility model performs high-efficiency gas-liquid separation on the gas preliminarily, greatly reduces the resistance acting on the filter medium, can adapt to a gas filtering and drying scene with higher air supply quantity and larger air supply pressure, can realize more efficient filtration, and meets the requirement of vacuum exhaust and drying in the manufacture of corrugated pipes.

Description

Vacuum exhaust dryer for high-speed water cooling line of corrugated pipe

Technical Field

The utility model is applicable to the technical field of vacuum exhaust dryers, and provides a vacuum exhaust dryer for a high-speed water-cooling line of a corrugated pipe.

Background

Plastic corrugated pipes are widely used for water supply and drainage pipelines, in the production process, in order to enable corrugated pipes in production molds to be rapidly cooled and molded, a vacuum system is required to be used for extracting hot gas in the molds, a water seal type vacuum pump in the vacuum system is used for exhausting water (or running water), and plastic processing and exhausting external environment-friendly equipment is used, and water vapor enters the environment-friendly equipment to corrode an exhaust pipe network and possibly damage the environment-friendly equipment.

In the prior art, most of vacuum exhaust dryers dry gas through a filter medium, the air supply quantity is not large, the principle is that pressure difference is manufactured at two sides of a filter layer, gas passes through the filter medium from bottom to top, enters into one side with small pressure, liquid is blocked and cannot pass through, gas-liquid separation is realized, and resistance is needed to be overcome by a gas flow filtering slag layer containing liquid and the filter medium, so the pressure difference at two sides of the filter medium is the driving force for realizing filtration. The increase of the air supply quantity or the increase of the pressure difference can accelerate the filtration, but the increase can lead to deformation of the filter medium after being pressed, even the moisture in the gas can not be filtered efficiently, the filtration is slowed down, the efficiency is reduced, the requirement of vacuum exhaust and drying in the manufacture of the corrugated pipe is caused, and the condition of vacuum suction filtration in the prior art is not applicable.

In view of the above, it is apparent that the conventional vacuum exhaust dryer has inconvenience and defects in the art, and thus needs to be optimized.

Disclosure of Invention

Aiming at the defects, the utility model aims to provide a vacuum exhaust dryer for a high-speed water-cooling line of a corrugated pipe, which can achieve higher drying degree, can adapt to a gas filtering and drying scene with higher air supply quantity and larger air supply pressure, can achieve more efficient filtration, and solves the problems in the background technology; the device comprises a device body, an exhaust pipe and a device support bottom, wherein the device body comprises a body shell, an air inlet is formed in the upper portion of the side face of the body shell in a penetrating mode, a cooling pipe is spirally arranged in the body shell and comprises a water inlet and a water outlet, the water inlet and the water outlet penetrate out of the body shell, the top of the body shell is provided with the exhaust pipe in a penetrating mode, an air outlet is formed in the top of the exhaust pipe, and a secondary filtering device is arranged in the exhaust pipe; the bottom of the body shell is fixedly connected with a device support bottom, a water outlet is arranged at the bottom of the device support bottom, and a drain valve is fixedly connected below the water outlet.

Further, the inner cavity wall of the device body, the outer surface of the cooling pipe and the surface of the exhaust pipe are plated with anti-corrosion medium layers.

Furthermore, a plurality of radiating fins are uniformly arranged on the surface of the cooling pipe in a surrounding mode.

Further, the device support bottom comprises a floating ball mechanism arranged inside, the floating ball mechanism comprises a fixed seat fixedly connected with the device support bottom, a supporting rod rotatably connected with the fixed seat and a floating ball fixedly connected with one end of the supporting rod, and a water stop plug is rotatably connected to the middle part of the supporting rod.

Further, the secondary filtering device comprises a folded plate demister and a silk screen demister.

Furthermore, the inside of the secondary filter device is fixedly connected with a pipeline.

According to the utility model, through air flow rotation and refrigeration, water vapor in the air is primarily and rapidly condensed, the water vapor is primarily and effectively separated through effects of collision, centrifugation, phase change, condensation and the like, and then the air is subjected to secondary filtration to perform gas-liquid separation again, so that the higher drying degree is achieved; the device can be used for carrying out efficient gas-liquid separation on gas preliminarily, so that the resistance acting on a filter medium is greatly reduced, the device can be suitable for a gas filtering and drying scene with higher air supply quantity and larger air supply pressure, can realize more efficient filtration, and is more in line with the vacuum exhaust and drying requirements in the manufacture of corrugated pipes.

Drawings

FIG. 1 is a schematic view of the internal structure of a dryer;

FIG. 2 is a schematic view of the internal structure of the exhaust pipe;

FIG. 3 is a schematic view of the internal structure of the device tray;

FIG. 4 is a schematic diagram of a cooling tube and cooling fin connection;

in the figure: 1-a device body; 11-a body housing; 12-air inlet; 13-cooling pipes; 131-a water inlet; 132-water outlet; 133-heat fins; 2-an exhaust pipe; 21-an air outlet; 22-a secondary filter device; 221-flap demister; 222-wire mesh demister; 23-lining; 3-supporting the device; 31-a water outlet; 32-a drain valve; 33-a float ball mechanism; 331-fixing base; 332-a strut; 333-floating ball; 334-water stop plug.

Detailed Description

The present utility model will be described in further detail with reference to the accompanying drawings, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

Referring to fig. 1 and 2, the utility model aims to provide a vacuum exhaust drier for a high-speed water cooling line of a corrugated pipe, which comprises a device body 1, an exhaust pipe 2 and a device support 3, wherein the device body 1 comprises a body shell 11, and an air inlet 12 is penetrated through the upper part of the side surface of the body shell 11; the air inlet 12 is connected to a bellows manufacturing mould and when the device is started, hot gas is sucked into the device through the air inlet 12. The cooling pipe 13 is spirally arranged in the body shell 11, the cooling pipe 13 comprises a water inlet 131 and a water outlet 132, and the water inlet 131 and the water outlet 132 penetrate out of the body shell 11; the water inlet 131 and the water outlet 132 are connected to an external cold water circulation device, which can supply circulated refrigerant to the cooling pipe 13. The top of the body shell 11 is provided with an exhaust pipe 2 in a penetrating way, and the top of the exhaust pipe 2 is provided with an air outlet 21; the air outlet 21 is connected with an external vacuumizing system, negative pressure generated by the vacuumizing system can suck hot gas into the device, after the gas enters, a rotary downward high-speed gas flow is formed in the device, the gas flow continuously collides with the cooling pipe 13 in the process of rotating downward at a high speed, water vapor is condensed to form fog drops, the fog drops are thrown on the inner cylinder wall of the cyclone device by utilizing the inertia of the fog drops and then flow down and are collected by gravity, the gas flow enters the exhaust pipe 2 after rotating to the bottom of the device, and a rotary gas flow with higher speed is formed, so that water vapor is further atomized. A secondary filter device 22 is arranged in the exhaust pipe 2; although most of water vapor in the gas can be removed by condensation and centrifugation, a small part of water vapor still cannot be discharged more efficiently, and the water vapor is further and more strongly atomized in the exhaust pipe 2 and then adsorbed by the secondary filter device 22, so that the exhaust gas can be dried better. The bottom of the body shell 11 is fixedly connected with a device support bottom 3, a water outlet 31 is arranged at the bottom of the device support bottom 3, and a drain valve 32 is fixedly connected below the water outlet 31; the collected water can be discharged out of the device through the water outlet 31, the water discharge valve 32 can be electrically controlled, and when the internal pressure and the external pressure of the device are the same, the water discharge valve can be electrically opened to control the water discharge.

Preferably, the inner cavity wall of the device body 1, the outer surface of the cooling pipe 13 and the surface of the exhaust pipe 2 are all plated with anti-corrosion medium layers; because the water vapor with a certain temperature has larger corrosiveness to the inside of the device, the part contacted with the gas in the device has the effects of rust prevention and corrosion prevention.

Referring to fig. 4, preferably, a plurality of heat dissipation fins 133 are uniformly arranged on the surface of the cooling tube 12 in a ring manner; the heat dissipation fins 133 can transfer the temperature of the cooling tube 13, increase the contact area between the low temperature area and the gas, capture the water vapor in the body 2, and the water-containing gas is more prone to condensation and water drops under the action of the heat dissipation fins 133.

Referring to fig. 1-3, preferably, the device support 3 includes a floating ball mechanism 33 disposed inside, the floating ball mechanism 33 includes a fixed seat 331 fixedly connected with the device support 3, a supporting rod 332 rotatably connected with the fixed seat 331, and a floating ball 333 fixedly connected with one end of the supporting rod 332, and a water stop 334 is rotatably connected with the middle portion of the supporting rod 332; the bottom of the water stop 334 is arranged corresponding to the water outlet 132, and the floating ball mechanism 33 works according to the following principle: when the water quantity reaches a certain height, a floating ball 333 with buoyancy drives a supporting rod 332 to tilt upwards, a water stop plug 334 rotationally connected with the supporting rod 332 is lifted up, the upper part of a water outlet 31 is opened, and when the pressure difference between the inside and the outside of the device is constant, a drain valve 32 below the water outlet 31 is opened, so that the water at the bottom of the device can be discharged.

Referring to fig. 1 and 2, the secondary filter device 22 preferably includes a folded plate mist eliminator 221 and a wire mesh mist eliminator 222; the folded plate demister 221 can filter larger-diameter liquid drops in air, the wire mesh demister 222 is a mist filtering device formed by a gas-liquid filter screen pad and a supporting rod, the folded plate demister 221 and the wire mesh demister 222 are both in the prior art, and redundant description is omitted here; the folded plate demister 221 and the wire mesh demister 222 can further filter tiny water drops formed after the gas is cooled, so that the exhaust gas is dried more fully.

Referring to fig. 1 and 2, a pipe liner 23 is preferably fixedly connected to the inside of the secondary filter device 22; the pipe liner 23 is a simple muffler, and only a layer of sound absorbing material is stuck on the inner periphery of the pipe wall, so that the effect of eliminating middle-high frequency noise can be achieved.

In summary, in practical use, the vacuum pumping system connected to the outside of the air outlet 21 provides negative pressure for the device, the hot gas containing water vapor enters the device from the air inlet 12 to form a high-speed air flow rotating downwards, the air flow continuously collides with the cooling tube 13 and the radiating fins 133 in the process of rotating downwards at high speed, the water vapor condenses to form mist drops, the mist drops are thrown on the inner cylinder wall of the cyclone device by utilizing the inertia of the mist drops and then flow downwards by gravity and are collected, the air flow enters the exhaust pipe 2 after rotating to the bottom of the device, a rotating air flow with higher speed is formed, the atomized water vapor is further atomized, and the atomized water vapor is blocked and adsorbed by the folded plate demister 221 and the wire mesh demister 222 of the secondary filtering device 22, so that the moisture in the gas can be further filtered, and the exhaust is dried more fully; when the water quantity reaches a certain height, a floating ball 333 with buoyancy drives a supporting rod 332 to tilt upwards, a water stop plug 334 rotationally connected with the supporting rod 332 is lifted up, the upper part of a water outlet 31 is opened, and when the pressure difference between the inside and the outside of the device is constant, a drain valve 32 below the water outlet 31 is opened, so that the water at the bottom of the device can be discharged. In the process, the corrosion-resistant medium layer in the device body 1 can prevent water vapor with a certain temperature from corroding the inside of the device; the liner 23 can muffler the exhaust pipe 2 of the device.

Compared with the prior art, the device enables water vapor in the gas to be primarily and rapidly condensed through air flow rotation and refrigeration, primarily and effectively separates the water vapor through effects of collision, centrifugation, phase change, condensation and the like, and then carries out secondary filtration to carry out gas-liquid separation on the gas again to achieve higher dryness; because this device has initially carried out efficient gas-liquid separation to gas, and the resistance that acts on filter medium reduces by a wide margin, adaptable higher air supply, bigger air supply pressure's gas filtration drying scene can accomplish more efficient filtration, accords with the vacuum exhaust drying requirement in the bellows manufacturing.

Of course, the present utility model is capable of other various embodiments and its several details are capable of modification and variation in light of the present utility model, as will be apparent to those skilled in the art, without departing from the spirit and scope of the utility model as defined in the appended claims.

Claims (6)

1. A vacuum exhaust dryer for a high-speed water-cooled bellows line, comprising: the device comprises a device body, an exhaust pipe and a device support bottom, wherein the device body comprises a body shell, an air inlet is formed in the upper portion of the side face of the body shell in a penetrating mode, a cooling pipe is spirally arranged in the body shell and comprises a water inlet and a water outlet, the water inlet and the water outlet penetrate out of the body shell, the top of the body shell is provided with the exhaust pipe in a penetrating mode, an air outlet is formed in the top of the exhaust pipe, and a secondary filtering device is arranged in the exhaust pipe; the bottom of the body shell is fixedly connected with a device support bottom, a water outlet is arranged at the bottom of the device support bottom, and a drain valve is fixedly connected below the water outlet.

2. The vacuum exhaust drier for a high-speed water-cooling line of a corrugated pipe according to claim 1, wherein the inner cavity wall of the device body, the outer surface of the cooling pipe and the surface of the exhaust pipe are all plated with anti-corrosion medium layers.

3. The vacuum exhaust drier for the high-speed water cooling line of the corrugated pipe according to claim 1, wherein a plurality of radiating fins are uniformly arranged on the surface of the cooling pipe in a surrounding manner.

4. The vacuum exhaust drier for the high-speed water-cooling line of the corrugated pipe according to claim 1, wherein the device support comprises a floating ball mechanism arranged inside, the floating ball mechanism comprises a fixed seat fixedly connected with the device support, a supporting rod rotatably connected with the fixed seat and a floating ball fixedly connected with one end of the supporting rod, and a water stop plug is rotatably connected with the middle part of the supporting rod.

5. A vacuum exhaust dryer for a high-speed water-cooled line for corrugated tubing as claimed in claim 1, wherein the secondary filter means comprises a folded plate mist eliminator and a wire mesh mist eliminator.

6. The vacuum exhaust drier for a high-speed water-cooling line of corrugated pipes according to claim 1, wherein a liner is fixedly connected inside the secondary filter device.