Automatic water replenishing and alarming device for water level of water pool of pellet cooling tower

Abstract

The utility model discloses a pellet cooling tower pool water level automatic water replenishing and alarming device, which belongs to the technical field of annular cooling automatic water replenishing and comprises a pool, a floating ball mechanism, an alarming mechanism and an electric control box. A bypass is arranged on one side of the pool, is arranged at the water level of a high-water-level alarm point of the pool and inclines downwards; an electric valve and a water pump are arranged on the bypass; the bypass is connected with the reservoir; the floating ball mechanism comprises a floating ball arranged in the water tank, an insertion rod vertically arranged on the floating ball, a contact vertically arranged on the insertion rod and a liquid level switch arranged beside the insertion rod; the liquid level switch is a travel switch matched with the contact and comprises an ultra-low water level switch, a low water level switch, a high water level switch and an ultra-high water level switch which are sequentially arranged from bottom to top; the electric control box is connected with the electric valve, the water pump and the alarm mechanism. According to the utility model, the stability and reliability of cooling water supply can be ensured, and low-cost and unattended operation is realized.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automatic water replenishment of ring cooling, especially a kind of pellet cooling tower pool water level automatic water replenishment and alarm device. BACKGROUND

[0002] In actual pellet production process, the water level management of cooling tower pool is crucial.However, the height of pool water level mainly relies on artificial water replenishment and drainage operation at present.Due to the uncertainty of artificial watch, for example, the fatigue, negligence, temporary off-duty of staff or the untimely response to water level change, etc., water level abnormality problem cannot be accurately judged and handled in the first time, which leads to the cooling water supply system of cooling tower prone to insufficient water supply.

[0003] Once the cooling water supply is insufficient, it will directly affect the normal operation of key equipment in pellet production process.For example, the internal bearing, motor and other components of fan cannot be cooled normally due to high temperature in the case of lack of sufficient cooling water, which leads to fan overheating shutdown, even damage.The chain and transmission components of chain and grate machine also need continuous cooling of cooling water, otherwise high temperature will accelerate the wear of chain, even cause chain breakage, causing equipment shutdown.The blade and bearing of crusher and other parts will also appear overheating due to insufficient cooling water, which not only reduces the crushing efficiency, but also may cause blade deformation, bearing damage, even cause equipment failure shutdown.

[0004] The shutdown and damage of these equipment will not only directly lead to the interruption of pellet production line, affect production progress and yield, but also increase the cost of equipment maintenance and replacement.More seriously, equipment damage may cause safety accidents, cause greater threat to personnel and equipment, and bring irreparable economic losses to enterprises.

[0005] Therefore, how to effectively solve the uncertainty problem of cooling tower pool water level management and ensure the stability and reliability of cooling water supply is a problem to be solved in current pellet production process. INVENTION CONTENTS

[0006] The technical problem to be solved by the utility model is to provide a kind of pellet cooling tower pool water level automatic water replenishment and alarm device, which can ensure the stability and reliability of cooling water supply, and realize low-cost, unattended operation.

[0007] To solve the above technical problems, the technical scheme adopted by the utility model is:

[0008] A kind of pellet cooling tower pool water level automatic water replenishment and alarm device, including pool, float ball mechanism, alarm mechanism and electrical control box;

[0009] The bypass is arranged at the high water level alarm point of the pool and is inclined downward; an electric valve and a water pump are arranged on the bypass; and the bypass is connected with the pool;

[0010] The float ball mechanism comprises a float ball arranged in the pool, a plug rod arranged vertically on the float ball, a contact arranged vertically on the plug rod, and a liquid level switch arranged beside the plug rod; the liquid level switch is a travel switch matched with the contact and comprises, from bottom to top, an ultralow water level switch, a low water level switch, a high water level switch, and an ultrahigh water level switch;

[0011] The electric control box is connected with the electric valve, the water pump, and the alarm mechanism;

[0012] The control circuit comprises a first control branch, a second control branch, a third control branch, and a fourth control branch; the first control branch is connected with the ultralow water level switch signal at the input end and connected with the alarm mechanism at the output end, and the input end and the output end are connected by wires; the second control branch is connected with the low water level switch signal at the input end and connected with the valve and the water pump at the output end, and a first time delay relay is arranged between the input end and the output end; the third control branch is connected with the high water level switch signal at the input end and connected with the valve at the output end, and a second time delay relay is arranged between the input end and the output end; and the fourth control branch is connected with the ultrahigh water level switch signal at the input end and connected with the alarm mechanism at the output end, and the input end and the output end are connected by wires.

[0013] Further improvement of the technical scheme of the utility model lies in that the electric valve is an electromagnetic bidirectional valve.

[0014] Further improvement of the technical scheme of the utility model lies in that the alarm mechanism is an audible and visual alarm mechanism.

[0015] Further improvement of the technical scheme of the utility model lies in that the inclination angle of the bypass ranges from 5° to 10°.

[0016] Thanks to the above technical scheme, the utility model has the following technical progress:

[0017] 1. In the utility model, the electric valve and the water pump are automatically controlled according to the received water level detection switch signal, so as to realize automatic water replenishment and drainage.

[0018] 2. In the utility model, when the pool has an ultrahigh water level or an ultralow water level, a signal is sent to the audible and visual alarm in the post personnel area to remind the post personnel to handle in time.

[0019] 3. In the utility model, the inclined bypass is arranged at the high water level, the valve is an electromagnetic bidirectional valve, the valve is opened when the water level is at the high water level to drain water to the pool, and the water pump is used to replenish water to the pool when the water level is at the low water level, and the above-mentioned operations can be completed through the bypass. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the automatic water replenishment and alarm device for the water level of the pellet cooling tower water tank in this utility model;

[0021] Among them, 1. Water pool;

[0022] 2. Float mechanism, 2-1. Float, 2-2. Insert rod, 2-3. Contact, 2-4. Liquid level switch;

[0023] 3. Electrical control box; 4. Bypass; 5. Electric valve; 6. Water pump; 7. Water storage tank; 8. Alarm mechanism. Detailed Implementation

[0024] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments:

[0025] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0026] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first," "second," etc., may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0027] like Figure 1 As shown, an automatic water replenishment and alarm device for a pellet cooling tower water tank includes a water tank 1, a float mechanism 2 installed in the water tank 1, an electrical control box 3 connected to the float mechanism 2, an electric valve 5 connected to the electrical control box 3, and an alarm mechanism 8.

[0028] A bypass 4 is provided on one side of the water tank 1. The bypass 4 is located at the high water level alarm point of the water tank 1 and is inclined downward. An electric valve 5 and a water pump 6 are provided on the bypass 4. The electric valve 5 is an electromagnetic two-way valve. The bypass 4 is connected to the water storage tank 1.

[0029] The float ball mechanism 2 comprises a float ball 2-1, a plug rod 2-2 vertically arranged on the float ball 2-1, a contact 2-3 vertically arranged on the plug rod 2-2 and a liquid level switch 2-4 arranged on the side of the plug rod 2-2; the liquid level switch 2-4 is a travel switch matched with the contact 2-3 and comprises, from bottom to top, an ultralow water level switch, a low water level switch, a high water level switch and an ultrahigh water level switch;

[0030] The control circuit arranged in the electrical control box 3 comprises a first control branch, a second control branch, a third control branch and a fourth control branch; the first control branch is connected with the ultralow water level switch signal at the input end and connected with the alarm mechanism 8 at the output end, and the input end and the output end are connected by wires; the second control branch is connected with the low water level switch signal at the input end and connected with the valve and the water pump 6 at the output end, and a first time delay relay is arranged between the input end and the output end; the third control branch is connected with the high water level switch signal at the input end and connected with the valve at the output end, and a second time delay relay is arranged between the input end and the output end; the fourth control branch is connected with the ultrahigh water level switch signal at the input end and connected with the alarm mechanism 8 at the output end, and the input end and the output end are connected by wires.

[0031] Working principle:

[0032] When the water level drops to the low water level, the low water level switch is actuated, the valve and the water pump 6 are actuated, water is automatically replenished from the water storage tank 1, and the first time delay relay is timed for a preset time length, after which the valve is closed and the water pump 6 is stopped; the preset time length is generally 1 minute or 2 minutes;

[0033] If the water surface continues to drop, the ultralow water level switch is actuated, the alarm mechanism 8 is powered, and an alarm will be issued, and the post personnel will check the reason for the continuous drop of the water level to avoid water shortage and damage to equipment due to pipeline leakage and the like;

[0034] If the water surface rises to the high water level, the high water level switch is actuated, the valve is actuated, and water is automatically flowed into the water storage tank 1, and the second time delay relay is timed for a preset time length, after which the valve is closed; the preset time length is generally 1 minute or 2 minutes; when the water surface is lower than the height of the bypass 4, the water can also be automatically stopped;

[0035] If the water surface continues to rise, the ultrahigh water level switch is actuated, the alarm mechanism 8 is powered, and an alarm will be issued, and the post personnel will check the reason for the continuous rise of the water level to avoid water shortage and damage to equipment due to pipeline leakage and the like.

[0036] In summary, in the utility model, the electric valve is automatically controlled according to the received water level detection switch signal, automatic water replenishment is realized, a signal is issued to the sound and light alarm in the post personnel area when the ultrahigh water level or the ultralow water level is reached, and the post personnel are reminded to handle in time.

Claims

1. A kind of automatic water replenishing and alarming device for water level of pellet cooling tower pool, it is characterized by: It comprises a pool (1), a floating ball mechanism (2), an alarm mechanism (8) and an electrical control box (3). The pool (1) is provided with a bypass (4) on one side, the bypass (4) is arranged at the high water level alarm point of the pool (1) and is inclined downward, the bypass (4) is provided with an electric valve (5) and a water pump (6), and the bypass (4) is connected with a water storage pool (7). The floating ball mechanism (2) comprises a floating ball (2-1) arranged in the pool (1), a plug rod (2-2) arranged vertically on the floating ball (2-1), a contact (2-3) arranged vertically on the plug rod (2-2) and a liquid level switch (2-4) arranged beside the plug rod (2-2), the liquid level switch (2-4) is a travel switch matched with the contact (2-3) and comprises, from bottom to top, an ultralow water level switch, a low water level switch, a high water level switch and an ultrahigh water level switch. The electrical control box (3) is connected with the electric valve (5), the water pump (6) and the alarm mechanism (8). The control circuit in the electrical control box (3) comprises a first control branch, a second control branch, a third control branch and a fourth control branch, the first control branch is connected with an ultralow water level switch signal at an input end and connected with the alarm mechanism (8) at an output end, the input end and the output end are connected with each other by wires, the second control branch is connected with a low water level switch signal at an input end and connected with the valve and the water pump (6) at an output end, a first delay relay is arranged between the input end and the output end, the third control branch is connected with a high water level switch signal at an input end and connected with the valve at an output end, a second delay relay is arranged between the input end and the output end, and the fourth control branch is connected with an ultrahigh water level switch signal at an input end and connected with the alarm mechanism (8) at an output end, the input end and the output end are connected with each other by wires.

2. The automatic water supplementing and alarming device for water level of the pellet cooling tower pond according to claim 1, characterized in that: The electric valve (5) is an electromagnetic bidirectional valve.

3. The automatic water supplementing and alarming device for water level of pellet cooling tower pond according to claim 1, characterized in that: The alarm mechanism (8) is an audible and visual alarm mechanism (8).

4. The automatic water supplementing and alarming device for water level of pellet cooling tower pond according to claim 1, characterized in that: The inclination angle of the bypass (4) ranges from 5° to 10°.

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