CN220091045U - Circulating water dosing device and cooling system - Google Patents

Abstract

The utility model provides a circulating water dosing device and a cooling system, and relates to the technical field of chemical equipment. The working process of the circulating water dosing device is as follows: the water supplementing pipeline enters the first dosing pipeline from the second end of the first dosing pipeline, is mixed with the liquid medicine from the first medicine storage container at the first Venturi reducing pipe, and is more fully mixed with circulating water by increasing the flow speed of the first Venturi reducing pipe at the reducing position; if water is not needed to be supplemented, the compressed air is provided by the compressed air conveying pipeline, so that the fluid with certain pressure in the pipeline always enters the circulating water tank. The circulating water dosing device provided by the utility model can improve the mixing uniformity of the medicament and the circulating water.

Description

Circulating water dosing device and cooling system

Technical Field

The utility model relates to the technical field of chemical equipment, in particular to a circulating water dosing device and a cooling system.

Background

With the development of chemical industry technology, the requirements on temperature control in the production process are higher and higher, and circulating water cooling devices such as a water cooling tower and the like are generated. Because of the special working environment, the circulating water tank is mostly placed in the open air, and part of factory circulating water directly enters the circulating water tank without membrane filtration, so that the water quality of the water tank is poor, and long-term dosing is needed to ensure that the water tank can be normally used.

At present, peristaltic pumps are mainly used for adding medicines in industrial circulating water ponds, the main medicines are scale inhibitors, corrosion inhibitors and bactericides, and some scale inhibitors and corrosion inhibitors cannot be mixed, and after mixing, solvents react in advance to reduce the efficacy. Peristaltic pumps have small dosing pressure, are pulsed dosing, are unfavorable for the fusion of solvents and circulating water, and often require the use of hoses. The hose is not easy to store, and is easy to wear, and may need to be replaced frequently. Meanwhile, the peristaltic pump is an independent system, so that automatic control is not facilitated. Adding different medicaments requires adding a plurality of peristaltic pumps to add medicaments, and increases the use cost of equipment and personnel.

Therefore, the following problems generally exist in the current dosing mode of the circulating water tank:

(1) The medicament and the circulating water are not easy to be effectively mixed;

(2) The pulse exists in the dosing process, and the outlet pressure is smaller;

(3) The energy utilization rate is low, and the automatic control is inconvenient.

In view of this, the present utility model has been proposed.

Disclosure of Invention

The utility model aims to provide a circulating water dosing device and a cooling system, which aim to improve the mixing effect of a medicament and circulating water.

Embodiments of the present utility model are implemented as follows:

in a first aspect, the utility model provides a circulating water dosing device, which comprises a first dosing pipeline, a water supplementing pipeline, a compressed air conveying pipeline and a first medicine storage container for containing medicines, wherein the first dosing pipeline is provided with a first end and a second end opposite to the first end, the first end of the first dosing pipeline is communicated with a circulating water tank, and the output end of the water supplementing pipeline and the output end of the compressed air conveying pipeline are connected with the second end of the first dosing pipeline;

a first venturi reducer is arranged at the position, close to the first end, of the first dosing pipeline, and the first medicine storage container is communicated with the first venturi reducer.

In an alternative embodiment, the first venturi reducer comprises a middle necking section and expanding sections positioned at two ends of the middle necking section, and the first medicine storage container is communicated with the middle necking section of the first venturi reducer through a first conveying pipeline.

In an alternative embodiment, the device further comprises a second dosing pipeline and a second medicine storage container, wherein the second medicine storage container is communicated with the circulating water tank through the second dosing pipeline; one end of the second dosing pipeline is communicated with the circulating water tank, the other end of the second dosing pipeline is communicated with the first dosing pipeline, and a switch valve is arranged on the second dosing pipeline and close to the joint of the second dosing pipeline and the first dosing pipeline.

In an alternative embodiment, a second venturi reducer is arranged at one end of the second dosing pipeline close to the circulating water tank, and the second medicine storage container is communicated with the second venturi reducer.

In an alternative embodiment, the second venturi reducer comprises a middle necking section and expanding sections positioned at two ends of the middle necking section, and the second medicine storage container is communicated with the middle necking section of the second venturi reducer through a second conveying pipeline.

In an alternative embodiment, a booster pump is provided on the line between the junction of the second dosing line and the first dosing line and the second end of the first dosing line.

In an alternative embodiment, a pressure transmitter is provided on the line between the junction of the second dosing line and the first venturi reducer.

In an alternative embodiment, on-off valves are provided on both the water make-up line and the compressed gas delivery line.

In an alternative embodiment, the device further comprises a circulating water tank, and the first end of the first dosing pipeline is communicated with the circulating water tank.

In a second aspect, the present utility model provides a cooling system comprising a circulating water dosing device according to any one of the preceding embodiments.

The embodiment of the utility model has the beneficial effects that: the water supplementing pipeline enters the first dosing pipeline from the second end of the first dosing pipeline, is mixed with the liquid medicine from the first medicine storage container at the first Venturi reducing pipe, and is more fully mixed with circulating water by increasing the flow speed of the first Venturi reducing pipe at the reducing position; if water is not needed to be supplemented, the compressed air is provided by the compressed air conveying pipeline, so that the fluid with certain pressure in the pipeline always enters the circulating water tank. The circulating water dosing device provided by the utility model can improve the mixing uniformity of the medicament and the circulating water.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic structural diagram of a circulating water dosing device according to an embodiment of the present utility model;

fig. 2 is a cross-sectional view of the first venturi reducer of fig. 1.

The icon is 100-circulating water dosing device; 110-a first dosing line; 111-a first end; 112-a second end; 113-a first venturi reducer; 1131-an intermediate necked section; 1132-an expanded diameter section; 114-a booster pump; 115-pressure transmitter; 120-water supplementing pipeline; 130-a compressed gas delivery line; 140-a first reservoir; 150-a circulating water tank; 160-a second dosing line; 161-a second venturi reducer; 170-a second reservoir; 001-a switch valve; 002-on-off valve; 003-switching valve; 004-first transfer line; 005-second transfer line.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or those that are conventionally put in use of the inventive product, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal," "vertical," and the like do not denote a requirement that the component be absolutely horizontal or overhang, but rather may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Referring to fig. 1, the present utility model provides a circulating water dosing device 100, which includes a first dosing pipeline 110, a water supplementing pipeline 120, a compressed air conveying pipeline 130, and a first medicine storage container 140 for storing medicine, wherein the medicine liquid in the first medicine storage container 140 enters the first dosing pipeline 110 and is conveyed to a circulating water tank 150.

Specifically, the first dosing line 110 has a first end 111 and a second end 112 opposite the first end 111, the first end 111 of the first dosing line 110 is configured to communicate with the circulating water reservoir 150, and the output end of the water replenishment line 120 and the output end of the compressed gas delivery line 130 are both connected to the second end 112 of the first dosing line 110. A first venturi reducer 113 is mounted to the first dosing line 110 proximate the first end 111, and a first reservoir 140 is in communication with the first venturi reducer 113. Since the water replenishing operation is not permanently accompanied with the operation state, the water replenishing is not required to be performed all the time, and when the water replenishing operation is not required to be performed, the compressed air is supplied by the compressed air supply pipeline 130 to be used as fluid for conveying, so that the fluid in the first venturi reducer 113 passes through, and the fluid with certain pressure in the pipeline always enters the circulating water tank 150.

For better control, the water supplementing pipeline 120 is provided with a switch valve 002, the compressed gas conveying pipeline 130 is provided with a switch valve 001, and the opening and closing of the pipeline are regulated by controlling the opening and closing of the two switch valves. If water supplementing operation is needed, the switch valve 002 is opened, and the switch valve 001 is closed; when the water replenishing operation is not required, the on-off valve 001 is opened, and the on-off valve 002 is closed.

Specifically, the compressed air delivery line 130 may deliver compressed air in communication with a container containing compressed air; the water supplementing line 120 may have an input end connected to another cooling water line. The on-off valve in the embodiment of the utility model is of an existing valve structure, so that the opening and closing of the pipeline can be realized, and the specific structure and the working principle are not repeated.

The water replenishing pipe 120 enters the first dosing pipe 110 from the second end 112 of the first dosing pipe 110, and is mixed with the liquid medicine from the first medicine storage container 140 at the first venturi reducing pipe 113, and the flow rate is increased at the reducing point by the first venturi reducing pipe 113, so that the liquid medicine is more fully mixed with the circulating water.

It is to be added that after the corrosion inhibitor and the scale inhibitor of part of the types are mixed, chemical reaction can occur to reduce the efficacy, and the corrosion inhibitor and the scale inhibitor of part of the types can be used in combination. When the scale inhibitor and the corrosion inhibitor may be mixed before being added to the circulation tank 150, the mixed agent is directly added to the first medicine storage container 140 for medicine. If the scale inhibitor and the corrosion inhibitor are not suitable to be mixed in advance, a bypass is added to convey the scale inhibitor and the corrosion inhibitor respectively, for example, the first dosing pipeline 110 conveys the scale inhibitor, and the second dosing pipeline 160 conveys the corrosion inhibitor.

In some embodiments, the circulating water dosing device 100 further includes a second dosing line 160 and a second reservoir 170, the second reservoir 170 being in communication with the circulating water reservoir 150 through the second dosing line 160. One end of the second dosing pipeline 160 is communicated with the circulating water tank 150, the other end of the second dosing pipeline 160 is communicated with the first dosing pipeline 110, and an on-off valve 003 is arranged on the second dosing pipeline 160 near the joint with the first dosing pipeline 110. When the second dosing pipeline 160 is opened or closed through the switch valve 003, and the scale inhibitor and the corrosion inhibitor are required to be fed separately, the switch valve 003 is closed, and the circulating water conveyed by the water supplementing pipeline 120 can enter the second dosing pipeline 160 to be mixed with the chemical entering the pipeline.

In particular, the second container 170 is used for temporarily storing a pharmaceutical agent, such as a corrosion inhibitor, and the specific kind is not limited; the first medicine storage container 140 is used for temporarily storing medicines such as scale inhibitors, and the specific kind is not limited.

Further, a second venturi reducing tube 161 is provided at an end of the second dosing line 160 adjacent to the circulation tank 150, and a second medicine storage container 170 communicates with the second venturi reducing tube 161. The mixing effect of the medicine and water can be further improved by the second venturi reducing tube 161.

Further, a booster pump 114 is provided on the line between the junction of the second dosing line 160 and the first dosing line 110 and the second end 112 of the first dosing line 110. Due to the diversion of the second charge line 160, fluctuations in fluid pressure may occur after the bypass is opened, in order to ensure that the pressure in the system is stable and the booster pump 114 is installed before the system is modified.

Specifically, the booster pump 114 may be a general variable frequency booster pump, and may be installed on a pipeline in a conventional manner, so as to pressurize fluid in the pipeline.

Further, a pressure transmitter 115 is provided on the line between the junction of the second dosing line 160 and the first dosing line 110 and the first venturi reducer 113. The electrical signal can be fed back to the booster pump 114 in front of the pipeline by means of the pressure transducer 115, which pressurizes the fluid in the pipeline.

In the actual operation process, a controller may be configured, and the controller is used to control the booster pump 114 to work, and after the controller receives the electric signal transmitted by the pressure transmitter, the controller regulates and controls the booster pump 114 to work according to the pressure. Specifically, pressure transmitter 115 is of an existing construction and in a general sense is comprised of three parts, a load cell sensor (also referred to as a pressure sensor), measurement circuitry, and process connection. The sensor can convert physical pressure parameters such as gas, liquid and the like sensed by the load cell sensor into standard electrical signals (such as 4-20 mADC and the like) so as to supply secondary instruments such as an indication alarm instrument, a recorder, a regulator and the like for measurement, indication and process regulation.

The first venturi reducing tube 113 and the second venturi reducing tube 161 are substantially identical in structure, and the structure of the first venturi reducing tube 113 is described in fig. 2. The first venturi reducing tube 113 comprises a middle reducing section 1131 and expanding sections 1132 positioned at two ends of the middle reducing section 1131, and the first medicine storage container 140 is communicated with the middle reducing section 1131 of the first venturi reducing tube 113 through a first conveying pipeline 004 so as to further improve the mixing effect.

It should be noted that, the middle necking section 1131 is provided with a pipeline for accessing the medicament, the flow velocity of the fluid in the venturi effect pipeline is increased when the fluid flows through the reduced flow cross section, and the pressure of the fluid is reduced, so that the adsorption effect is generated, the medicament is sucked into the pipeline from the medicament adding tank (i.e. the first medicament storage container 140 or the second medicament storage container 170), and is fully mixed with the circulating water to enter the circulating water tank 150, and if the water is not needed, the compressed air with a certain pressure is added through the bypass.

Similarly, the second venturi reducing tube 161 comprises a middle reducing section 1131 and expanding sections 1132 positioned at two ends of the middle reducing section 1131, and the second medicine storage container 170 is communicated with the middle reducing section 1131 of the second venturi reducing tube 161 through the second conveying pipeline 005, and the specific structure can be combined with fig. 2.

Specifically, the first venturi reducing tube 113 and the second venturi reducing tube 161 may be commercially available pipelines, or may be customized according to requirements, and may be capable of forming a venturi effect.

In some embodiments, the circulating water dosing device 100 further includes a circulating water reservoir 150, the first end 111 of the first dosing line 110 being in communication with the circulating water reservoir 150, and the output end of the second dosing line 160 also being in communication with the circulating water reservoir 150. The second dosing line 160 is selectively opened and closed depending on whether the scale inhibitor and corrosion inhibitor can be blended, and when the scale inhibitor and corrosion inhibitor can be blended, only the first dosing line 110 is opened, and the booster pump 114 and pressure transmitter 115 are not required to be opened.

The embodiment of the utility model also provides a cooling system, which comprises the circulating water dosing device 100, and can also comprise other main structures such as a cooling tower, etc., wherein the circulating water tank 150 is used for providing circulating water.

In summary, the utility model provides a circulating water dosing device and a cooling system, which have the following advantages compared with the mode of dosing by utilizing a plurality of peristaltic pumps in the prior art:

(1) The jet flow of the main pipeline (namely the first dosing pipeline 110) can effectively mix the liquid medicine and the circulating water, so that the situation that the liquid medicine is not fused in place is prevented;

(2) The multi-power-source dosing mode in the prior art is centralized to be the same power source, so that automatic control is realized, and the power utilization rate is improved;

(3) The peristaltic pump pulse is not adopted in the scheme after improvement, so that the problem of long-term abrasion of the hose is avoided.

The above is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (10)

1. The circulating water dosing device is characterized by comprising a first dosing pipeline, a water supplementing pipeline, a compressed air conveying pipeline and a first medicine storage container for containing medicines, wherein the first dosing pipeline is provided with a first end and a second end opposite to the first end, the first end of the first dosing pipeline is used for being communicated with a circulating water tank, and the output end of the water supplementing pipeline and the output end of the compressed air conveying pipeline are connected with the second end of the first dosing pipeline;

a first venturi reducer is installed at the first dosing pipeline near the first end, and the first medicine storage container is communicated with the first venturi reducer.

2. The circulating water dosing device of claim 1, wherein the first venturi reducer comprises a middle reducing section and expanded diameter sections positioned at two ends of the middle reducing section, and the first medicine storage container is communicated with the middle reducing section of the first venturi reducer through a first conveying pipeline.

3. The circulating water dosing device of claim 1 or 2, further comprising a second dosing line and a second reservoir, the second reservoir being in communication with the circulating water reservoir through the second dosing line; one end of the second dosing pipeline is communicated with the circulating water tank, the other end of the second dosing pipeline is communicated with the first dosing pipeline, and a switch valve is arranged on the second dosing pipeline and close to the joint of the second dosing pipeline and the first dosing pipeline.

4. A circulating water dosing device as claimed in claim 3, wherein a second venturi reducer is provided at an end of the second dosing line adjacent the circulating water reservoir, the second reservoir being in communication with the second venturi reducer.

5. The circulating water dosing apparatus of claim 4, wherein the second venturi reducer comprises a middle necked section and expanded diameter sections at both ends of the middle necked section, and the second drug storage container is in communication with the middle necked section of the second venturi reducer through a second delivery line.

6. The circulating water dosing apparatus of claim 4, wherein a booster pump is provided on the line between the junction of the second dosing line and the first dosing line and the second end of the first dosing line.

7. The circulating water dosing apparatus of claim 6, wherein a pressure transmitter is provided on the line between the junction of the second dosing line and the first venturi reducer.

8. The circulating water dosing device of claim 1, wherein on-off valves are provided on both the water replenishment pipeline and the compressed gas delivery pipeline.

9. The circulating water dosing device of claim 1, further comprising a circulating water reservoir, wherein the first end of the first dosing line is in communication with the circulating water reservoir.

10. A cooling system comprising a circulating water dosing device according to any one of claims 1-9.