Automatic pollution discharge energy-saving device for cooling tower

Abstract

The utility model discloses an automatic pollution discharge energy-saving device for a cooling tower, which comprises a cooling tower water collecting tank, the top of the cooling tower water collecting tank is connected with a water return pipeline and a water replenishing pipeline, the bottom of the cooling tower water collecting tank is connected with a bottom discharge pipeline, and the bottom discharge pipeline is provided with a pollution discharge electric control valve; and a turbidity meter and a conductivity meter are arranged on the water return pipeline and are electrically connected with the electric pollution discharge control valve. The turbidity meter, the conductivity meter and the liquid level meter are additionally arranged on the water return pipeline of the cooling tower for on-line monitoring, the electric valve is additionally arranged on the blow-off pipeline at the bottom, when the turbidity or the conductivity reaches a set value, the electric valve is opened to achieve automatic blow-off, the influence of uncontrollable manual blow-off quantity is avoided, meanwhile, liquid level monitoring is carried out, and the automatic blow-off is achieved. If the water supplementing amount does not meet the liquid level requirement, pollution discharge is stopped, and normal operation of equipment is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to cooling tower automatic pollution discharge technical field especially relates to a cooling tower automatic pollution discharge energy -conserving device. BACKGROUND

[0002] The water quality control of open circulation cooling water system helps to guarantee the normal operation of equipment and prolongs the service life, if the impurities in circulating water are not controlled, are easy to deposit on the heat exchange surface of equipment, form scale and corrosion, reduce the heat transfer efficiency of equipment, increase energy consumption and increase operation cost. SUMMARY

[0003] The utility model discloses a cooling tower automatic pollution discharge energy -conserving device, and aims at solving the technical problem that the circulating water impurities in the prior art cooling tower cannot be automatically discharged when the circulating water impurities are more.

[0004] In order to achieve the above object, the utility model provides a cooling tower automatic pollution discharge energy -conserving device, which comprises: cooling tower water collecting pool, the top of cooling tower water collecting pool is connected with backwater pipeline and water supplement pipeline, the bottom is connected with bottom discharge pipeline, and the bottom discharge pipeline is provided with a pollution electric regulating valve;

[0005] The backwater pipeline is provided with a turbidity meter and a conductivity meter, and the turbidity meter and the conductivity meter are electrically connected with the pollution electric regulating valve.

[0006] Further, one end of the bottom discharge pipeline is installed on the bottom of the cooling tower water collecting pool through a flange, and the other end is connected to the upper side of the floor drain.

[0007] Further, the water supplement pipeline is provided with a water supplement control valve.

[0008] The low liquid level meter and the high liquid level meter are electrically connected with the water supplement control valve.

[0009] Further, the low liquid level meter is electrically connected with the pollution electric regulating valve.

[0010] Further, the backwater pipeline is also provided with a backwater control valve, and the backwater control valve is installed on the left side of the turbidity meter.

[0011] Further, the inlet of the backwater pipeline is arranged between the low liquid level meter and the high liquid level meter, and the inlet of the bottom discharge pipeline is arranged below the low liquid level meter.

[0012] The utility model has the advantages of:

[0013] The utility model discloses a cooling tower backwater pipeline adds turbidity appearance, conductivity appearance, liquid level meter and carries out on -line monitoring, and the bottom blow-off pipeline adds electric valve, when turbidity or conductivity reaches set value, realizes automatic blowdown when electric valve opens, avoids the influence that artificial blowdown volume is uncontrollable, carries out liquid level monitoring simultaneously, if the water replenishment does not satisfy liquid level requirement and stops blowdown, guarantees equipment normal operation. BRIEF DESCRIPTION OF DRAWINGS

[0014] Fig. 1 It is the three -dimensional structure schematic diagram of the utility model;

[0015] Fig. 2 It is the control principle diagram of the utility model.

[0016] EXPLANATION OF REFERENCE NUMERALS:

[0017] 1, cooling tower water collecting pool, 2, backwater pipeline, 3, bottom blow-off pipeline, 4, turbidity appearance, 5, conductivity appearance, 6, blow-off electric regulating valve, 7, backwater control valve, 8, low liquid level meter, 9, floor drain, 10, water replenishment pipeline, 11, water replenishment control valve, 12, high liquid level meter. DETAILED DESCRIPTION

[0018] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. The embodiments in the application and the features in the embodiments can be combined with each other without conflict. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.

[0019] It should be noted that if the embodiments of the utility model involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement condition, etc. between the components in a certain specific posture (as shown in the drawings). If the specific posture changes, the directional indications also change accordingly.

[0020] In addition, if the description of "first", "second" and the like is involved in the embodiments of the utility model, the description of "first", "second" and the like is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can be explicitly or implicitly included at least one of the features. In addition, the meaning of "and / or" appearing throughout the text includes three parallel schemes. For example, "A and / or B" includes A scheme, or B scheme, or A and B simultaneously satisfy the scheme. In addition, "multiple" refers to more than two. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist.

[0021] Referring to Figs. 1-2 The utility model discloses a cooling tower automatic blowdown energy -conserving device, include: cooling tower water collecting pool 1, cooling tower water collecting pool 1 top is connected with backwater pipeline 2 and water replenishment pipeline 10, the bottom is connected with bottom blowdown pipeline 3, bottom blowdown pipeline 3 is equipped with blowdown electric regulating valve 6 on,

[0022] Backwater pipeline 2 is equipped with turbidity meter 4, conductivity meter 5, turbidity meter 4, conductivity meter 5 electrically connected blowdown electric regulating valve 6.

[0023] Control principle

[0024] In the cooling tower backwater pipeline, turbidity meter, conductivity meter, liquid level meter are increased and are monitored on line, electric valve is increased to bottom blowdown pipeline, when turbidity or conductivity reaches set value, electric valve opens and realizes automatic blowdown, avoids the influence that artificial blowdown quantity is uncontrolled, simultaneously carries out liquid level monitoring, if water replenishment quantity does not satisfy liquid level requirement, stops blowdown, guarantees the normal operation of equipment.

[0025] In some embodiments, referring to Fig. 1 The bottom blowdown pipeline 3 is installed at the bottom of the cooling tower water collecting pool 1 through a flange at one end and is communicated to above the floor drain 9 at the other end.

[0026] In some embodiments, referring to Fig. 2 The water replenishment pipeline 10 is equipped with a water replenishment control valve 11.

[0027] The side wall of the cooling tower water collecting pool 1 is equipped with a low liquid level meter 8 and a high liquid level meter 12, and the low liquid level meter 8 and the high liquid level meter 12 are electrically connected to the water replenishment control valve 11.

[0028] The high liquid level meter and the low liquid level meter are used to control the water replenishment control valve. When there is no water in the cooling tower water collecting pool, the water replenishment control valve opens the water replenishment. When the water level reaches the high liquid level meter, the water replenishment control valve stops the water replenishment.

[0029] In some embodiments, referring to Fig. 2 As shown, the low liquid level meter 8 is electrically connected to the blowdown motor-operated regulating valve 6. The low liquid level meter also controls the blowdown motor-operated regulating valve, and when the liquid level is lower than the low liquid level, the blowdown motor-operated regulating valve stops discharging water.

[0030] In some embodiments, referring to Fig. 1 As shown, the backwater pipeline 2 is also provided with a backwater control valve 7, which is installed on the left side of the turbidimeter 4.

[0031] In some embodiments, referring to Fig. 1 As shown, the backwater pipeline 2 is provided with an inlet between the low liquid level meter 8 and the high liquid level meter 12; and the bottom discharge pipeline 3 is provided with an inlet below the low liquid level meter 8.

[0032] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A cooling tower automatic blowdown energy saving device, characterized in that , comprising: cooling tower sump (1), the cooling tower sump (1) top is connected with backwater pipeline (2) and water replenishment pipeline (10), bottom is connected with bottom discharge pipeline (3), the bottom discharge pipeline (3) is equipped with blowdown electric regulating valve (6) on it; The turbidimeter (4), conductivity meter (5) are electrically connected to the blowdown electric regulating valve (6) on the backwater pipeline (2).

2. The automatic blowdown energy-saving device of a cooling tower according to claim 1, characterized in that, One end of the bottom discharge pipeline (3) is installed on the bottom of the cooling tower sump (1) through a flange, and the other end is connected to the upper side of the floor drain (9).

3. The automatic blowdown energy-saving device of a cooling tower according to claim 1, characterized in that, The water replenishment pipeline (10) is equipped with a water replenishment control valve (11). The low liquid level meter (8) and the high liquid level meter (12) are electrically connected to the water replenishment control valve (11) on the side wall of the cooling tower sump (1).

4. The automatic blowdown energy-saving device of a cooling tower according to claim 3, characterized in that, The low liquid level meter (8) is electrically connected to the blowdown electric regulating valve (6).

5. The automatic blowdown energy saving device of a cooling tower according to claim 1, characterized in that, The backwater control valve (7) is also installed on the backwater pipeline (2), which is installed on the left side of the turbidimeter (4).

6. The automatic blowdown energy saving device of a cooling tower according to claim 3, characterized in that, The inlet of the backwater pipeline (2) is arranged between the low liquid level meter (8) and the high liquid level meter (12); the inlet of the bottom discharge pipeline (3) is arranged below the low liquid level meter (8).

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