Pressure-stabilizing auxiliary cooling device of air evaporative cooler for ironmaking water treatment

Abstract

The utility model discloses a pressure-stabilizing auxiliary cooling device of an air evaporative cooler for ironmaking water treatment, which comprises a pressure-stabilizing box body (2) arranged between water tanks (1) of two air coolers, and a liquid level balance control system (3) arranged in the pressure-stabilizing box body (2). The liquid level balance control system (3) comprises a safe liquid level sensor (32) matched with the controller (31), a pressure stabilizing control valve (33), a pressure stabilizing pump (34) and a pressure stabilizing pipe (35), the pressure stabilizing pipe (35) is connected between the water tank (1) and the pressure stabilizing box body (2), and the pressure stabilizing control valve (33) and the pressure stabilizing pump (34) are both connected to the pressure stabilizing pipe (35); a liquid supplementing substance (2a) is arranged in the pressure stabilizing box body (2), an auxiliary cooler (4) is further connected outside the pressure stabilizing box body (2), and the auxiliary cooler (4) is a soaking fin type active cooling device. The air cooler has the advantages that the liquid level of a balanced spraying water system is stable, auxiliary cooling is achieved, water temperature is reduced, and the operation efficiency of the air cooler is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to iron water equipment technical field, especially relates to a kind of air evaporation cooler steady pressure auxiliary cooling device for iron water treatment. BACKGROUND

[0002] Generally, air evaporation cooler reduces air temperature by using latent heat of water evaporation. The specific process includes: (1) cooling water circulation: cooling water is sucked from the water storage tank by circulating water pump and sprayed on the heat transfer tube bundle. Water flows down in film shape on the outer surface of the tube and finally falls into the water tank for recycling; (2) evaporative cooling: when water evaporates on the outer surface of the heat transfer tube, it absorbs a large amount of heat, and this process is called evaporative cooling. The latent heat of evaporation reduces the temperature of the medium inside the tube, thereby achieving the effect of cooling; (3) air flow: the axial flow induced draft fan sucks fresh air from the air window outside the cooler on all sides, carries away water vapor, creates conditions for continuous evaporation of water film, and further reduces air temperature. It has a wide application in the process of iron water treatment in water plant.

[0003] However, air evaporation cooler is greatly affected by the environment, especially in dry environment, the effect is not good, and it may increase the humidity of the environment. In actual production process, it is found that the water level of the water tank of the air cooler is lower than the water inlet of the spray pump due to water floating and other conditions. When this situation occurs, the air cooler can only be shut down and wait for the water to be replenished to the safe liquid level; when the outdoor temperature is too high in summer, the spray water cannot be effectively cooled due to high operating load, thereby affecting the cooling effect of the cooling water for blast furnace.

[0004] In summary, when facing the situation of unstable water level in the cooler tank and high temperature of the spray water, the operation effect of the air cooler will be seriously affected, and even due to the low water level in the tank, the spray pump cannot be started, etc., causing single or multiple air coolers to be shut down, which will affect the supply of cooling water for blast furnace production and cause more serious production stop. UTILITY MODEL CONTENTS

[0005] The utility model aims to solve the problems of poor liquid level stability, uncontrollable water temperature and poor cooling effect of existing air coolers, and provides an air evaporation cooler steady pressure auxiliary cooling device for iron water treatment, which can balance the liquid level stability of the spray water system, avoid the spray pump from not sucking water due to the influence of working conditions, and reduce the water temperature through auxiliary cooling to improve the operation efficiency of the air cooler.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] The application relates to an air evaporative cooler pressure stabilizing auxiliary cooling device for iron water treatment, which comprises two air coolers and water tanks matched with the air coolers, a pressure stabilizing tank is arranged between the two water tanks, a liquid level balance control system is arranged in the pressure stabilizing tank, the liquid level balance control system comprises a safety liquid level sensor matched with a controller, a pressure stabilizing control valve, a pressure stabilizing pump and a pressure stabilizing pipe, the safety liquid level sensor is connected to the water tank of the air cooler and faces the safety liquid level, the pressure stabilizing pipe is connected between the water tank and the pressure stabilizing tank, and the pressure stabilizing control valve and the pressure stabilizing pump are connected to the pressure stabilizing pipe, so as to detect the liquid level through the sensor and transmit the liquid level to the controller, then the valve and the pump are opened and closed to complete the liquid supplementing and liquid level adjusting purposes.

[0008] The pressure stabilizing tank is provided with liquid supplementing substances, and an auxiliary cooler is further connected to the pressure stabilizing tank; the auxiliary cooler is a uniform heating fin type active cooling device, so as to adjust the water temperature of the pressure stabilizing tank through the cooler and improve the operation efficiency of the air cooler.

[0009] Further, the safety liquid level sensor is connected to the controller through a signal transmission line, the controller is connected to the pressure stabilizing pump and the pressure stabilizing control valve, and the pressure stabilizing pipe is a DN25 galvanized pipe.

[0010] Further, the pressure stabilizing pipe comprises an inclined section one, an upward bending section, an inclined section two and a wall-attached section which are sequentially connected; the inclined section one is connected to the pressure stabilizing control valve and the lower end thereof is connected to the pressure stabilizing tank; and the inclined section two is connected to the pressure stabilizing pump and the higher end thereof is connected to the water tank.

[0011] Further, the wall-attached section is a group of sawtooth or wave-shaped pipeline structures which are vertically arranged along the side wall of the water tank, so as to buffer the liquid flow rate of the pump and try to ensure that the liquid does not splash when flowing into the water tank.

[0012] Further, the auxiliary cooler comprises a group of heat dissipation fins which are made of copper sheets with a thickness of 1mm.

[0013] Further, a group of air holes are arranged on the heat dissipation fins, and the air holes on adjacent two heat dissipation fins are staggered, so as to take away the heat on the heat dissipation fins through the air holes and enhance the cooling effect.

[0014] In the technical scheme, the liquid in the water tank is pretreated, the liquid temperature in the spraying water tank is controlled at a proper parameter, the function of assisting the air cooler to cool is realized, the liquid level balance between the spraying water tanks of the air coolers is realized by using the liquid level balance control system, the air cooler is protected from two aspects of pressure stabilization and active cooling, and the working efficiency and refrigeration effect of the air cooler are improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 The drawing is a structural schematic view of the air evaporative cooler pressure stabilizing auxiliary cooling device.

[0016] Figure 2 for Figure 1 A local enlarged view of the place;

[0017] Figure 3 The heat dissipation fin air hole arrangement schematic view of the utility model. CONCRETE EMBODIMENT EMBODIMENT

[0018] In order to make the utility model more clearly, the air evaporative cooler pressure stabilizing auxiliary cooling device for molten iron treatment of the utility model is further explained below in conjunction with the drawings, and the specific embodiments described here are only used to explain the utility model, and are not used to limit the utility model.

[0019] Referring to Figure 1 An air evaporative cooler pressure stabilizing auxiliary cooling device for molten iron treatment, comprising two air coolers and their matched water tanks 1, characterized in that:

[0020] A pressure stabilizing tank 2 is arranged between the two water tanks 1, and a liquid level balance control system 3 is arranged in the pressure stabilizing tank 2, wherein the liquid level balance control system 3 comprises a safety liquid level sensor 32, a pressure stabilizing control valve 33, a pressure stabilizing pump 34 and a pressure stabilizing pipe 35 matched with a controller 31, the safety liquid level sensor 32 is connected to the water tank 1 of the air cooler and is arranged opposite to the safety liquid level 1a, the pressure stabilizing pipe 35 is connected between the water tank 1 and the pressure stabilizing tank 2, and the pressure stabilizing control valve 33 and the pressure stabilizing pump 34 are both connected to the pressure stabilizing pipe 35, so as to detect the liquid level through the sensor and transmit it to the controller, and then control the valve and the pump body to open and close to complete the purpose of liquid supplement and liquid level adjustment;

[0021] Referring to Figure 2 The pressure stabilizing pipe 35 comprises an inclined section one 351, an upward bending section 352, an inclined section two 353 and a wall-attached section 354 connected in sequence, the inclined section one 351 is connected with the pressure stabilizing control valve 33 and its lower end is connected with the pressure stabilizing tank 2, the inclined section two 353 is connected with the pressure stabilizing pump 34 and its higher end is connected with the water tank 1, and the wall-attached section 354 is a group of sawtooth or wave-shaped pipeline structures, which are arranged vertically along the side wall of the water tank 1, so as to buffer the liquid flow rate pumped in and try to ensure that the liquid does not splash when flowing into the water tank;

[0022] Referring to Figure 1 and Figure 3 The pressure stabilizing tank 2 is provided with a liquid supplementing material 2a, and an auxiliary cooler 4 is further connected outside the pressure stabilizing tank 2, wherein the auxiliary cooler 4 is a uniform heat fin type active cooling device, so as to adjust the water temperature of the pressure stabilizing tank through the cooler and improve the operation efficiency of the air cooler;

[0023] The auxiliary cooler 4 comprises a set of heat dissipation fins 41 made of copper sheets with a thickness of 1mm, and a set of air holes 41a are arranged on the heat dissipation fins 41, and the air holes 41a on adjacent two heat dissipation fins 41 are staggered, so as to take away the heat on the heat dissipation fins through the air holes and enhance the cooling effect.

[0024] In the embodiment, the air cooler processes water with a quantity of 500m 3 / h, and the spraying water is concentrated and circulated, and the spraying water quantity Q is less than or equal to 160m 3 / h, the device of the utility model is installed at the space between two air coolers, a PE water tank with a width, depth and height of 3m*2m*2m is used to make a pressure stabilizing tank body, DN25 galvanized pipes are used to connect the pressure stabilizing tank body with the air cooler water tank through flanges at left and right sides of the pressure stabilizing tank body, a heat equalizing fin type active cooling device made of 1mm copper sheets is installed below the PE water tank, and the water inlet of the PE water tank is connected with a water supplement pipe through a liquid level balance control system, so that the pressure stabilization and auxiliary cooling functions of the air cooler system in the water treatment of the ironmaking water are realized, and the operation efficiency and supply stability of the air cooler are improved.

[0025] After the device of the utility model is used, the liquid level stability of the spraying water system is balanced without changing the characteristics of the existing air evaporation cooling device, it is ensured that the spraying pump cannot suck water due to the influence of working conditions, the water temperature is reduced through auxiliary cooling, the operation efficiency of the air cooler is improved, the stability and cooling effect of the air evaporation cooler in the water treatment of the ironmaking water are enhanced, the situation that the air cooler stops due to the liquid level of the spraying system water tank being too low caused by dry climate, water floating and other factors is reduced, the potential production risk caused by the water temperature of the blast furnace cooling water being too high is reduced, and the device has wide applicability in the water treatment system industry.

[0026] After the air evaporation cooler is installed with the improved device, the situation that the liquid level of the air cooler water tank is unstable disappears, the air cooler stops due to the liquid level being too low does not occur again, the operation stability of the air cooler is significantly improved, the cooling water temperature is obviously improved due to the use of the heat equalizing fin type active cooling device, and the effect of the device is consistent with the expectation.

[0027] In addition to the above-mentioned embodiments, the utility model can also have other implementation manners. Any technical solution formed by equivalent replacement or equivalent transformation falls within the protection scope required by the utility model.

Claims

1. An air evaporative cooler pressure stabilizing auxiliary cooling device for ironmaking water treatment, comprising two air coolers and their matched water tanks (1), characterized in that: a pressure stabilizing tank (2) is arranged between the two water tanks (1), the pressure stabilizing tank (2) is provided with a liquid level balance control system (3), the liquid level balance control system (3) comprises a safety liquid level sensor (32), a pressure stabilizing control valve (33), a pressure stabilizing pump (34) and a pressure stabilizing pipe (35) matched with a controller (31), the safety liquid level sensor (32) is connected to the water tank (1) of the air cooler and is arranged opposite to the safety liquid level (1a), the pressure stabilizing pipe (35) is connected between the water tank (1) and the pressure stabilizing tank (2), and the pressure stabilizing control valve (33) and the pressure stabilizing pump (34) are both connected to the pressure stabilizing pipe (35); the pressure stabilizing tank (2) is provided with a liquid supplementing material (2a), and an auxiliary cooler (4) is further connected to the outside of the pressure stabilizing tank (2), the auxiliary cooler (4) is a uniform heating fin type active cooling device.

2. The air evaporative cooler pressure stabilizing auxiliary cooling device for ironmaking water treatment according to claim 1, characterized in that: the safety liquid level sensor (32) is connected to the controller (31) through a signal transmission line, the controller (31) is connected to the pressure stabilizing pump (34) and the pressure stabilizing control valve (33), and the pressure stabilizing pipe (35) is a DN25 galvanized pipe.

3. The air evaporative cooler pressure stabilizing auxiliary cooling device for ironmaking water treatment according to claim 1 or 2, characterized in that: the pressure stabilizing pipe (35) comprises an inclined section one (351), an upward bending section (352), an inclined section two (353) and a wall-attached section (354) connected in sequence, the inclined section one (351) is connected to the pressure stabilizing control valve (33) and its lower end is connected to the pressure stabilizing tank (2), and the inclined section two (353) is connected to the pressure stabilizing pump (34) and its higher end is connected to the water tank (1).

4. The air evaporative cooler pressure stabilizing auxiliary cooling device for ironmaking water treatment according to claim 3, characterized in that: the wall-attached section (354) is a group of sawtooth or wave-shaped pipeline structures, which are arranged vertically along the sidewall of the water tank (1).

5. The air evaporative cooler pressure stabilizing auxiliary cooling device for ironmaking water treatment according to claim 1 or 2, characterized in that: the auxiliary cooler (4) comprises a group of heat dissipation fins (41) made of copper sheets with a thickness of 1 mm.

6. The air evaporative cooler pressure stabilizing auxiliary cooling device for ironmaking water treatment according to claim 5, characterized in that: a group of air holes (41a) are arranged on the heat dissipation fins (41), and the air holes (41a) on adjacent two heat dissipation fins (41) are staggered. ​ ​ ​ ​ ​ ​

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