Anti-scaling hydrochloric acid recovery device

Abstract

The utility model provides an anti-scaling hydrochloric acid recovery device, which relates to the technical field of hydrochloric acid recovery and comprises a spray chamber, a buffer chamber and a volatilization chamber which are sequentially distributed from top to bottom, the buffer chamber is provided with a buffer liquid inlet and a buffer liquid outlet; a volatilization liquid phase space and a volatilization gas phase space are arranged in the volatilization chamber; the volatile liquid phase space is connected with a volatile liquid inlet and a volatile liquid outlet; the volatile gas phase space is connected with a volatile exhaust port; an air inlet head is arranged in the spraying chamber, and a spraying pipe is arranged above the air inlet head; a heating part is arranged in the volatile liquid phase space; a flushing pipeline is arranged in the volatile gas phase space and provided with a water outlet head, and the water outlet head is used for spraying water to the outer wall of the heating component. And the spraying chamber, the buffer chamber and the volatilization chamber are integrated from top to bottom, so that the occupation of a transverse space is reduced. After water is connected into the flushing pipeline, the outer wall of the heating pipe can be cleaned, and the situation that the heat transfer effect is affected due to the fact that too much scale is formed on the outer wall of the heating pipe is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to hydrochloric acid recovery technical field especially is related to a hydrochloric acid recovery device of anti -incrustation. BACKGROUND

[0002] Hydrochloric acid is the aqueous solution of hydrogen chloride, the property of hydrochloric acid is colorless transparent liquid, has strong pungent smell, has higher corrosivity, concentrated hydrochloric acid has very strong volatility, therefore the container with concentrated hydrochloric acid opens and hydrogen chloride gas will volatilize, combines with the water vapor in air and produces hydrochloric acid small droplet, makes the acid mist appear above the bottle mouth, contacts the hydrochloric acid steam or smoke can cause acute poisoning, therefore needs the hydrochloric acid in waste water and then carries out the discharge after recovery.

[0003] The patent document with the application number 202421013061.7 provides a low-energy consumption recovery hydrochloric acid device, which has the characteristics of filterability and low energy consumption, but still has the following shortcomings:

[0004] 1. The entire device includes multiple devices, resulting in a large occupation of horizontal space, which needs to be improved.

[0005] 2. Although the pre-filtering method is used, impurities (cannot filter out impurities 100%) will still enter the heating cavity in the rear end, although the stirring component is provided in the heating cavity to accelerate volatilization, but after long time work, impurities will still adhere to the inner wall of the heating cavity to produce incrustation, when the incrustation on the inner wall of the heating cavity is more, the heat transfer effect is reduced, which will affect the heating effect of the heating pipe outside the heating cavity. UTILITY MODEL CONTENTS

[0006] In view of the above situation, the utility model provides a hydrochloric acid recovery device of anti -incrustation, aims at solving the shortcomings pointed out in the above background art.

[0007] In order to achieve the above purpose, the utility model provides the following technical scheme:

[0008] The utility model provides a hydrochloric acid recovery device of anti -incrustation, including from top to bottom distribution spray chamber, buffer chamber and volatilization room in proper order;

[0009] The buffer chamber has buffer liquid inlet and buffer liquid outlet;

[0010] The volatilization room is distributed with volatilization liquid phase space and volatilization gas phase space from bottom to top;The volatilization liquid phase space is connected with volatilization liquid inlet and volatilization liquid outlet;The volatilization gas phase space is connected with volatilization exhaust port;

[0011] The spray chamber is provided with air inlet head, and the air inlet head is provided with spray pipe above;

[0012] The buffer liquid inlet, the buffer liquid outlet and the volatile liquid inlet are sequentially connected to form a liquid path; the volatile gas outlet and the gas inlet head are sequentially connected to form a gas path;

[0013] The volatile liquid phase space is provided with a heating component;

[0014] The volatile gas phase space is provided with a flushing pipeline, and the flushing pipeline is provided with a water outlet head for spraying water to the outer wall of the heating component.

[0015] In some embodiments of the utility model, the heating component comprises a heating pipe, and a heat exchange medium flows through the heating pipe.

[0016] In some embodiments of the utility model, the heating pipe is made of stainless steel.

[0017] In some embodiments of the utility model, the flushing pipeline is connected with the volatile liquid outlet, and the volatile liquid outlet is connected with a water inlet pipeline.

[0018] In some embodiments of the utility model, the upper part of the buffer chamber has a buffer gas phase space, and the buffer gas phase space is connected with the gas path.

[0019] In some embodiments of the utility model, the anti-fouling hydrochloric acid recovery device further comprises a flow meter for monitoring the gas flow in the gas path.

[0020] In some embodiments of the utility model, the spraying pipeline is provided with a flow regulating valve.

[0021] In some embodiments of the utility model, the flow regulating valve is associated with the flow meter.

[0022] In some embodiments of the utility model, the volatile gas phase space and the buffer chamber can conduct heat conduction.

[0023] The embodiments of the utility model have at least the following advantages or beneficial effects:

[0024] 1. The spraying chamber, the buffer chamber and the volatile chamber are integrated from top to bottom, thereby reducing the occupation of the horizontal space.

[0025] 2. After the water is connected to the flushing pipeline, the outer wall of the heating pipe can be cleaned, so that the heat transfer effect is not affected by the fouling on the outer wall of the heating pipe.

[0026] Other features and advantages of the utility model will be described in the subsequent description, and some of them will become apparent from the description, or will be understood by implementing the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the description of the embodiments. Obviously, the drawings in the following description only constitute some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative effort.

[0028] Figure 1 Structure diagram of the hydrochloric acid recovery device for preventing scale formation; the double-dot line in the figure indicates the liquid level.

[0029] Icon:

[0030] 1-spraying chamber, 11-inlet head, 12-spraying pipe, 121-flow regulating valve,

[0031] 3-buffering chamber, 31-buffering liquid inlet, 32-buffering liquid outlet, 33-buffering exhaust pipe,

[0032] 4-volatilization chamber, 41-volatilization liquid phase space, 411-volatilization liquid inlet, 412-volatilization liquid outlet, 42-volatilization gas phase space, 421-volatilization exhaust port,

[0033] 5-heating pipe,

[0034] 6-flushing pipeline, 61-outlet head, 62-water inlet pipeline, 7-flow meter. DETAILED DESCRIPTION

[0035] In the following, only some exemplary embodiments are simply described. As those skilled in the art can recognize, the described embodiments can be modified in various different ways without departing from the spirit or scope of the embodiments of the present application.

[0036] In the description of the embodiments of the present application, it is to be understood that the terms "upper", "lower", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the embodiments of the present application.

[0037] In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include one or more of the features. In the description of the embodiments of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0038] In the embodiments of the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements or the interaction relationship of two elements. For ordinary skilled in the art, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0039] The embodiments of the present application will be described in detail below.

[0040] Embodiments

[0041] Reference Figure 1 The present embodiment provides a scale prevention hydrochloric acid recovery device, which comprises a spray chamber 1, a buffer chamber 3 and a volatilization chamber 4 distributed in the recovery container from top to bottom.

[0042] The buffer chamber 3 has a buffer liquid inlet 31 and a buffer liquid outlet 32.

[0043] The volatilization chamber 4 has a volatilization liquid phase space 41 and a volatilization gas phase space 42 distributed from bottom to top; the volatilization liquid phase space 41 is connected with a volatilization liquid inlet 411 and a volatilization liquid outlet 412, the volatilization liquid inlet 411 is connected with the buffer liquid outlet 32, and the volatilization liquid outlet 412 is used for discharging wastewater after recovery of hydrochloric acid; the volatilization liquid phase space 41 is uniformly distributed with a plurality of heating components, the heating components include a heating pipe 5, a heat exchange medium flows through the heating pipe 5, and the heating pipe 5 is made of corrosion-resistant materials such as stainless steel; the volatilization gas phase space 42 is connected with a volatilization gas outlet 421; the volatilization gas phase space 42 can conduct heat conduction with the buffer chamber 3.

[0044] The volatilization gas phase space 42 is provided with a flushing pipeline 6, a plurality of water outlets 61 are uniformly distributed on the flushing pipeline 6, the water outlets 61 are located above the heating pipe 5, and the water outlets 61 are used for spraying water to the outer wall of the heating pipe 5. After the water is connected to the flushing pipeline 6, the outer wall of the heating pipe 5 can be cleaned, so as to prevent the heat transfer effect from being affected by too much scale on the outer wall of the heating pipe 5.

[0045] The lower part of the spray chamber 1 is provided with an air inlet head 11, and the upper part of the air inlet head 11 is provided with a spray pipe 12. A plurality of air inlet heads 11 are uniformly distributed in the lower part of the spray chamber 1.

[0046] The buffer liquid inlet 31, the buffer liquid outlet 32 and the volatile liquid inlet 411 are sequentially connected to form a liquid path. The wastewater first enters the buffer chamber 3, and then enters the volatile liquid phase space 41 of the volatile chamber 4. After the hydrochloric acid in the wastewater is heated by the heating pipe 5 to promote volatilization, the volatile HCL gas enters the spraying chamber 1 along the gas path formed by the volatile exhaust port 421 and the gas inlet head 11 in sequence. The spraying pipe 12 sprays water downward to make the rising HCL gas dissolve in the water, so that the hydrochloric acid solution is recovered. The concentration of the hydrochloric acid in the wastewater treated by the above method is greatly reduced, and the wastewater can be discharged from the volatile liquid outlet 412. After being used for a period of time, the water can be connected to the flushing pipeline 6 to clean the outer wall of the heating pipe 5, so as to prevent the outer wall of the heating pipe 5 from being scaled and affecting the heat transfer effect.

[0047] As can be seen from the above, the spraying chamber 1, the buffer chamber 3 and the volatile chamber 4 are integrated from top to bottom in the embodiment, which reduces the occupation of the horizontal space. After the water is connected to the flushing pipeline 6, the outer wall of the heating pipe 5 can be cleaned to prevent the outer wall of the heating pipe 5 from being scaled and affecting the heat transfer effect. The inner wall of the volatile chamber 4 can also be flushed through the flushing pipeline 6 and the water outlet head 61. Even if the inner wall of the volatile chamber 4 is scaled, it will not affect the heat transfer effect of the heating pipe 5. In addition, after the hydrochloric acid in the wastewater is heated by the heating pipe 5 to promote volatilization, it will rise to contact the bottom of the buffer chamber 3 for heat exchange, thereby preheating the wastewater in the buffer chamber 3 to reduce the overall energy consumption of the anti-scaling hydrochloric acid recovery device.

[0048] In the embodiment, the flushing pipeline 6 is connected with the volatile liquid outlet 412, and the volatile liquid outlet 412 is connected with the water inlet pipeline 62. After the valve on the gas path is closed and the valve on the water inlet pipeline 62 is opened, the water can be connected to the flushing pipeline 6 to clean the outer wall of the heating pipe 5. After the valve on the gas path is opened and the valve on the water inlet pipeline 62 is closed, the volatile HCL gas can be recovered by the water outlet head 61, the flushing pipeline 6 and the gas path into the spraying chamber 1. That is, the flushing pipeline 6 of the embodiment has the functions of water inlet and gas outlet, which simplifies the piping of the device.

[0049] The upper part of the buffer chamber 3 has a buffer gas phase space, and the buffer gas phase space is connected with the above-mentioned gas path through the buffer exhaust pipe 33. In this way, when the upper part of the buffer chamber 3 has the buffer gas phase space (the buffer chamber 3 is not filled with wastewater), the hydrochloric acid in the wastewater in the buffer chamber 3 also has a certain volatilization phenomenon. The volatile HCL gas in the buffer chamber 3 is also guided into the spraying chamber 1 for recovery in the embodiment.

[0050] The anti-scaling hydrochloric acid recovery device further comprises a flow meter 7, which is used to monitor the gas flow in the above-mentioned gas path to reflect the amount of volatile HCL gas.

[0051] In order to better recover the volatile HCL, the spray pipe 12 is provided with a flow regulating valve 121, which is associated with the flow meter 7, and specifically, the opening degree of the flow regulating valve 121 is positively correlated with the size of the data detected by the flow meter 7.

[0052] Finally, it should be noted that: the above is only the preferred embodiment of the present application, and is not intended to limit the present application. For those skilled in the art, the present application can have various changes and variations, and in the case of no conflict, the embodiments of the present application and the features in the embodiments can be arbitrarily combined with each other. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A scale-inhibiting hydrochloric acid recovery apparatus, characterized by, The device comprises, from top to bottom, a spraying chamber, a buffer chamber and a volatilization chamber; The buffer chamber is provided with a buffer liquid inlet and a buffer liquid outlet; The volatilization chamber is provided with a volatilization liquid phase space and a volatilization gas phase space from bottom to top; the volatilization liquid phase space is connected with a volatilization liquid inlet and a volatilization liquid outlet; and the volatilization gas phase space is connected with a volatilization gas outlet; The spraying chamber is provided with an air inlet head, and the air inlet head is provided with a spraying pipe above; The buffer liquid inlet, the buffer liquid outlet and the volatilization liquid inlet are sequentially connected to form a liquid path; and the volatilization gas outlet and the air inlet head are sequentially connected to form an air path; The volatilization liquid phase space is provided with a heating component; The volatilization gas phase space is provided with a flushing pipeline, and the flushing pipeline is provided with a water outlet head for spraying water to the outer wall of the heating component.

2. The anti-fouling hydrochloric acid recovery device of claim 1, wherein, The heating component comprises a heating pipe, and a heat exchange medium flows through the heating pipe.

3. The anti-fouling hydrochloric acid recovery device of claim 2, wherein, The heating pipe is made of stainless steel.

4. The anti-fouling hydrochloric acid recovery device of claim 1, wherein, The flushing pipeline is connected with the volatilization liquid outlet, and the volatilization liquid outlet is connected with a water inlet pipeline.

5. The anti-fouling hydrochloric acid recovery device of claim 1, wherein, The upper part of the buffer chamber is provided with a buffer gas phase space, and the buffer gas phase space is connected with the air path.

6. The anti-fouling hydrochloric acid recovery device of claim 1, wherein, The anti-fouling hydrochloric acid recovery device further comprises a flow meter for monitoring the gas flow in the air path.

7. The anti-fouling hydrochloric acid recovery device of claim 6, wherein, The spraying pipe is provided with a flow regulating valve.

8. The anti-fouling hydrochloric acid recovery device of claim 7, wherein, The flow regulating valve is associated with the flow meter.

9. The anti-fouling hydrochloric acid recovery apparatus according to any one of claims 1 to 8, characterized in that, The volatilization gas phase space can conduct heat with the buffer chamber.

Images