CN217246832U - Flash tank and steam recovery system - Google Patents

Abstract

The application provides a flash tank and vapor recovery system relates to energy recovery technical field. The utility model provides a flash tank, it can be including a jar body, and the internal baffle that is equipped with of jar, the baffle is vertical to be placed in jar internally, and baffle and jar internal side wall interconnect, the top and the bottom non contact each other of the baffle and jar body, and steam outlet and blowdown outlet have been seted up respectively to the both ends of the jar body, and steam outlet and blowdown outlet communicate each other, and the comdenstion water entry has been seted up to jar external side wall. This flash tank can more effectual recovery steam exhaust steam, carries out the reutilization. The steam recovery system can save energy, avoid energy waste and reduce white steam pollution.

Description

Flash tank and steam recovery system

Technical Field

The application relates to the technical field of energy recovery, in particular to a flash tank and a steam recovery system.

Background

At present, in the application field of industrial fluid systems, high-temperature and high-pressure steam is widely used, and the recycling of the used steam condensate water becomes an important link for energy conservation and emission reduction of the whole production line. The flash tank is used as a key part in the steam condensate circulating system, steam-water separation can be carried out on the steam condensate, secondary steam which is flashed can be reused in the medium-pressure steam system and the low-pressure steam system, and condensate water is discharged to enter a boiler room or a pulping workshop for recycling.

SUMMERY OF THE UTILITY MODEL

An object of this application is to provide a flash tank, it can effectively retrieve steam exhaust, carries out the reutilization.

Another object of the present application is to provide a steam recycling system, which can save energy, avoid energy waste, and reduce white steam pollution.

The embodiment of the application is realized as follows:

in a first aspect, the embodiment of the application provides a flash tank, which comprises a tank body, wherein a partition plate is arranged in the tank body, the partition plate is vertically arranged in the tank body, the partition plate is connected with the inner side wall of the tank body, the top and the bottom of the partition plate and the tank body are not in contact with each other, a steam outlet and a sewage discharge outlet are respectively formed in two ends of the tank body, the steam outlet is communicated with the sewage discharge outlet, and a condensed water inlet is formed in the outer side wall of the tank body.

In some embodiments of the present application, an insulating layer is disposed on an outer side of the tank body.

In some embodiments of the present application, an exhaust pipe is connected to the steam outlet, a condensate pipe is connected to the condensate inlet, and a drain pipe is connected to the drain outlet.

In some embodiments of the present application, the flash tank further comprises a fixing assembly, the fixing assembly comprises a lifting lug and a bracket, the lifting lug is disposed at one end of the tank body close to the steam outlet, and the bracket is disposed at one end of the tank body close to the blowdown outlet.

In a second aspect, the embodiment of the present application provides a steam recovery system, above-mentioned steam outlet department is connected with the blast pipe, and above-mentioned comdenstion water entrance is connected with the condensate pipe, and above-mentioned blowdown exit linkage has the drain pipe, and above-mentioned steam recovery system still includes hydrophobic subassembly, and above-mentioned hydrophobic subassembly includes interconnect's trap and connecting pipe.

In some embodiments of this application, above-mentioned steam recovery system still includes the blow off pipe, has seted up the valve on the above-mentioned blow off pipe, and the one end interconnect that above-mentioned blowdown export was kept away from to above-mentioned blow off pipe and above-mentioned drain pipe.

In some embodiments of the present disclosure, the number of the drain assemblies is two, two of the drain assemblies are disposed in parallel on the drain pipe, and the two drain assemblies are communicated with each other.

In some embodiments of the present application, the steam recycling system further includes a steaming and frying pan, a top of the steaming and frying pan is connected to the exhaust pipe, and a bottom of the steaming and frying pan is connected to the condensate pipe.

In some embodiments of the present application, the steam recycling system further comprises a water tank, the water tank is provided with a water inlet and a water outlet, and the water tank is connected with the hydrophobic component and the steaming and frying pan.

In some embodiments of the present application, the number of the water inlets is three, wherein one of the water inlets is connected to the joint of the hydrophobic component, and the other two of the water inlets are respectively connected to the bottom and top pipelines of the pan.

Compared with the prior art, the embodiment of the application has at least the following advantages or beneficial effects:

1. the application provides a flash tank, jar internal vertical baffle that is provided with, the baffle can increase the area of contact with water, can more effectual recovery steam exhaust steam, carries out the reutilization.

2. The application still provides a steam recovery system, including above-mentioned flash tank, can also include assemblies such as hydrophobic subassembly and water tank, hydrophobic subassembly includes interconnect's trap and connecting pipe, and the water tank is used for storing high temperature comdenstion water, carries out the reutilization. The steam recovery system can save energy, avoid energy waste and reduce white steam pollution.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.

FIG. 1 is a schematic structural diagram of a flash tank in an embodiment of the present application;

FIG. 2 is a schematic illustration of a flash tank in an embodiment of the present application;

FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2;

fig. 4 is a schematic structural diagram of a vapor recovery system in an embodiment of the present application.

Icon: 101-tank body; 102-pressure gauge; 103-safety valve; 104-a trap; 105-an exhaust pipe; 106-condensate pipes; 107-drain pipe; 108-a sewage draining pipe; 109-a condensate inlet; 110-a steam outlet; 111-a blowdown outlet; 112-a lifting lug; 113-a scaffold; 114-a separator; 115-bend pipe; 116-a connecting tube; 117-water outlet; 200-steaming and frying pan; 300-water tank.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined or explained in subsequent figures.

In the description of the embodiments of the present application, it should be noted that if the terms "center", "upper", "lower", "left", "right", "vertical", "inner", "outer", etc. indicate an orientation or a positional relationship based on the orientation or the positional relationship shown in the drawings or the orientation or the positional relationship which is usually arranged when the product of the application is used, the description is only for convenience and simplicity, and the indication or the suggestion that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be interpreted as limiting the application. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

Furthermore, the term "vertical" and the like, if present, does not require that the components be absolutely horizontal or overhanging, but may be slightly inclined. For example, "horizontal" merely means that the 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 embodiments of the present application, "a plurality" means at least 2.

In the description of the embodiments of the present application, it should be further noted that unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

Example 1

Referring to fig. 1 to 3, the embodiment provides a flash tank, which may include a tank 101, a partition plate 114 is disposed in the tank 101, the partition plate 114 is vertically disposed in the tank 101, the partition plate 114 is connected to an inner side wall of the tank 101, the partition plate 114 is not in contact with a top and a bottom of the tank 101, a steam outlet 110 and a sewage outlet 111 are respectively disposed at two ends of the tank 101, the steam outlet 110 is communicated with the sewage outlet 111, and a condensed water inlet 109 is disposed at an outer side wall of the tank 101.

As shown in the figure, the partition plate 114 is vertically arranged at the central position in the tank body 101, a certain distance is left between the upper end and the lower end of the partition plate 114 and the upper end and the lower end of the tank body 101, the partition plate 114 is not in contact with the tank body 101, the left side and the right side of the partition plate 114 are matched with the inner wall of the tank body 101, and the left side and the right side of the partition plate 114 are fixedly connected to the inner side wall of the tank body 101. A condensed water inlet 109 is formed in the center of the outer side wall of the tank body 101, high-temperature condensed water carrying dead steam enters the tank body 101 through the condensed water inlet 109, and the high-temperature condensed water entering the tank body 101 contacts with a partition plate 114 because the partition plate 114 is arranged in the tank body 101; meanwhile, the partition plate 114 can increase the surface area contacted with water, so that gas-liquid separation is better performed, and exhaust steam flows upwards and is discharged from the steam outlet 110 positioned at the top of the tank body 101 for secondary utilization; the high-temperature condensed water after the exhaust steam is recovered is discharged from a sewage outlet 111 at the bottom of the tank body 101 for recovery.

In this embodiment, a pressure gauge 102 may be further included, and the pressure gauge 102 is disposed on the upper portion of the outer sidewall of the tank 101, near the condensed water inlet 109.

In use, the pressure gauge 102 can be used to observe the pressure inside the tank 101, so as to maintain the pressure inside the tank 101 at 0.1-0.2Pa, i.e. to keep the pressure in a lower range. After the high-pressure high-temperature condensed water enters the lower-pressure tank 101, the high-temperature condensed water is changed into saturated vapor and saturated water under the pressure of the container due to the sudden pressure reduction, and further latent heat of the vapor is recovered for secondary utilization.

In this embodiment, a safety valve 103 may be further included, the safety valve 103 is disposed on an upper portion of an outer sidewall of the tank 101, and the safety valve 103 and the pressure gauge 102 are not in contact with each other.

The safety valve 103 is a special valve in which a closing member is normally closed by an external force, and when the pressure of a medium in a device or a pipe rises above a predetermined value, the medium is discharged to the outside of the system to prevent the pressure of the medium in the pipe or the device from exceeding a predetermined value. The safety valve 103 is arranged on the tank body 101, so that the pressure can be controlled not to exceed a specified value, and the safety valve plays an important role in protecting personal safety and equipment operation.

In this embodiment, an insulating layer is disposed outside the tank 101.

The heat preservation layer has the heat preservation effect to jar body 101, prevents that the heat from losing, better recovery steam exhaust steam.

In this embodiment, an exhaust pipe 105 is connected to the steam outlet 110, a condensate pipe 106 is connected to the condensate inlet 109, and a drain pipe 107 is connected to the drain outlet 111.

When the steam-gas separator is used, high-temperature condensed water carrying dead steam enters the tank body 101 through the condensed water inlet 109, the high-temperature condensed water entering the tank body 101 is contacted with the partition plate 114 for gas-liquid separation, at the moment, the dead steam flows upwards, is discharged from the steam outlet 110 positioned at the top of the tank body 101, and is conveyed to equipment needing heating through the exhaust pipe 105 for secondary utilization; the high-temperature condensate water after the exhaust steam is recovered is discharged from a sewage outlet 111 positioned at the bottom of the tank body 101, the sewage outlet 111 is connected with a drain pipe 107, and the high-temperature condensate water after the exhaust steam is recovered can be conveyed to a recovery container through the drain pipe 107 for recovery.

The exhaust pipe 105, the condensate pipe 106 and the drain pipe 107 are connected with the tank body 101 through flanges, so that the disassembly is convenient, the strength is high, and the sealing performance is good.

Here, the connection mode of the exhaust pipe 105, the condensate pipe 106, and the drain pipe 107 to the tank 101 may be other connection modes as long as the convenience of installation and detachment is ensured and the sealing performance is good, and the present application is not limited thereto.

In this embodiment, the device further comprises a fixing assembly, the fixing assembly comprises a lifting lug 112 and a bracket 113, the lifting lug 112 is arranged at one end of the tank 101 close to the steam outlet 110, and the bracket 113 is arranged at one end of the tank 101 close to the blowdown outlet 111.

As shown in the figure, the lifting lugs 112 are arranged at the top of the tank body 101, the number of the lifting lugs 112 is two, and the two lifting lugs 112 are symmetrically arranged at the top of the tank body 101, so that the flash tank is convenient to mount and fix. The two brackets 113 are symmetrically arranged at the lower part of the outer side wall of the tank body 101, so that the flash tank is convenient to mount and fix. When this flash tank is fixed in the installation like this, can fix with regard to the upper portion and the lower part of flash tank simultaneously, be favorable to improving the installation stability of flash tank, prevent that the flash tank from droing because of fixed jail not, it is safer.

Example 2

Referring to fig. 1 to 4, an embodiment of the present application further provides a steam recycling system, wherein a steam outlet 110 is connected to an exhaust pipe 105, a condensed water inlet 109 is connected to a condensed water pipe 106, and a blowdown outlet 111 is connected to a drain pipe 107, the steam recycling system further includes the above flash tank, and further includes a drain assembly, and the drain assembly includes a drain valve 104 and a connecting pipe 116, which are connected to each other.

The drainage component is arranged for evacuating and discharging the high-temperature condensed water after recovering the dead steam, the drainage valve 104 can automatically discharge the non-condensable gas such as steam condensed water and air in the connecting pipe 116, and the steam cannot leak out, so that the functions of steam blocking and drainage are achieved. The quantity of trap 104 is two, and two trap 104 intervals set up on connecting pipe 116, and the one end of connecting pipe 116 links to each other with drain pipe 107, and its other end is connected with the recovery container, conveniently stores the high temperature condensate water of retrieving.

When the steam-gas separator is used, high-temperature condensed water carrying dead steam enters the tank body 101 through the condensed water inlet 109, the high-temperature condensed water entering the tank body 101 is contacted with the partition plate 114, and the partition plate 114 can increase the surface area contacted with water, so that gas-liquid separation can be more effectively carried out. At the moment, the dead steam flows upwards, is discharged from a steam outlet 110 positioned at the top of the tank body 101, and is conveyed to equipment needing to be heated through an exhaust pipe 105 for secondary utilization; the high-temperature condensate water after the exhaust steam is recovered is discharged from a sewage discharge outlet 111 positioned at the bottom of the tank body 101, the sewage discharge outlet 111 is connected with a drain pipe 107, the high-temperature condensate water after the exhaust steam is recovered flows out of the sewage discharge outlet 111, enters the drain pipe 107 and then enters a connecting pipe 116, and therefore the high-temperature condensate water after the exhaust steam is recovered is conveyed to a recovery container for recovery.

In this embodiment, the sewage treatment device further comprises a sewage draining pipe 108, a valve is disposed on the sewage draining pipe 108, and the sewage draining pipe 108 and one end of the water draining pipe 107 far away from the sewage draining outlet 111 are connected with each other.

The blow off pipe 108 and the drain pipe 107 are perpendicular to each other, the blow off pipe 108 and the connecting pipe 116 are both connected to the drain pipe 107, the blow off pipe 108 and the connecting pipe 116 are parallel to each other, and the blow off pipe 108 is located at the lower part of the drain pipe 107. The sewage discharge pipe 108 is used for discharging sewage for cleaning the pipeline after the equipment is started. For example, when the whole system starts to work, each pipeline needs to be cleaned, and other valves are closed, such as the drain valve 104 of the drain assembly, so that water in the drain pipe 107 can directly flow into the sewage pipe 108, and at the same time, the valve arranged on the sewage pipe 108 is opened, so that sewage in the cleaning pipeline can be discharged.

When drainage is not needed and drainage is needed, the valve connected with the drainage pipe 108 is closed, and then the drain valve 104 is opened.

In this embodiment, there are two water-repellent assemblies, the two water-repellent assemblies are arranged on the drain pipe 107 in parallel, and the two water-repellent assemblies are communicated with each other.

The two water drainage assemblies facilitate faster drainage due to the greater amount of high temperature condensate water passing through the drain pipe 107. Two hydrophobic subassemblies are first hydrophobic subassembly and second hydrophobic subassembly respectively, and first hydrophobic subassembly is located the upper portion of second hydrophobic subassembly, and the one end that drain pipe 107 was kept away from to first hydrophobic subassembly is provided with return bend 115, and the one end and the connecting pipe 116 of return bend 115 are connected, and the other end is connected with the one end that drain pipe 107 was kept away from to second hydrophobic subassembly, and first hydrophobic subassembly and second hydrophobic subassembly pass through return bend 115 and communicate each other. Thus, the high-temperature condensed water flowing into the drain pipe 107 may be drained by the first and second drain assemblies, and the high-temperature condensed water flowing into the first and second drain assemblies may flow into the second drain assembly through the bent pipe 115 and then be collected together into the recovery container for water recovery.

In this embodiment, a steaming and frying pan 200 is further included, the top of the steaming and frying pan 200 is connected to the exhaust pipe 105, and the bottom of the steaming and frying pan 200 is connected to the condensate pipe 106.

When the steam-free heating device is used, high-temperature condensate water generated by the steaming and frying pan 200 can enter the flash tank through the condensate pipe 106, exhaust steam and latent heat are recovered, the recovered exhaust steam flows into the interlayer at the top of the steaming and frying pan 200 through the exhaust pipe 105 at the steam outlet 110, and then is used by the steaming and frying pan 200 for secondary utilization, and the steps are repeated to form a cycle.

As shown in the figure, the steam recovery system is provided with three steaming and frying pans 200 side by side, and when in use, the exhaust steam recovered in the exhaust pipe 105 is sequentially conveyed to the interlayers at the tops of the three steaming and frying pans 200 to heat the steaming and frying pans 200.

In this embodiment, the water tank 300 is further included, the water tank 300 is provided with a water inlet and a water outlet 117, and the water tank 300 is connected with the drainage component and the steaming and frying pan 200.

The water tank 300 is a recovery container for storing high-temperature condensed water. The top of the steaming and frying pan 200 is also provided with a condensate water recovery pipeline which is connected with the water tank 300, so that a part of high-temperature condensate water generated by the steaming and frying pan 200 can enter the water tank 300 through the condensate water recovery pipeline for recovery.

In this embodiment, the number of the water inlets is three, wherein one water inlet is connected to the joint of the hydrophobic component, and the other two water inlets are respectively connected to the bottom and top pipelines of the steaming and frying pan 200.

The top of the water tank 300 is provided with two water inlets and a water outlet side by side, the left side wall of the water tank 300 is also provided with a water inlet, a corresponding pipeline is arranged at the water inlet of the left side wall of the water tank 300, one end of the pipeline is connected with the water tank 300, and the other end of the pipeline is connected with the condensate pipe 106, so that high-temperature condensate water which enters the flash tank through the condensate pipe 106 can directly flow into the water tank 300 for recycling; and the two water inlets are positioned at the top of the water tank 300, wherein the water inlet at the left side of the top is connected with a pipeline, and the pipeline is connected with the connecting pipe 116 on the second hydrophobic component and is used for conveying the high-temperature condensed water converged by the first hydrophobic component and the second hydrophobic component to the water tank 300 for recycling. The other water inlet close to the left water inlet on the top is also connected with a pipeline, and the other end of the pipeline is provided with three branches which are respectively connected to the tops of the three steaming and frying pans 200, so that high-temperature condensed water generated by the three steaming and frying pans 200 can be conveniently conveyed into the water tank 300 for recycling; the drain port is mainly used to drain water in the water tank 300.

In summary, an embodiment of the present application provides a flash tank, which may include a tank 101, a partition 114 is disposed in the tank 101, the partition 114 is vertically disposed in the tank 101, the partition 114 is connected to an inner side wall of the tank 101, the partition 114 is not in contact with a top and a bottom of the tank 101, a steam outlet 110 and a blowdown outlet 111 are respectively disposed at two ends of the tank 101, the steam outlet 110 is communicated with the blowdown outlet 111, and a condensed water inlet 109 is disposed at an outer side wall of the tank 101. The partition plate 114 is vertically arranged at the central position in the tank body 101, a certain distance is reserved between the upper end and the lower end of the partition plate 114 and the upper end and the lower end of the tank body 101, the partition plate 114 is not in contact with the upper end and the lower end of the tank body 101, the left side and the right side of the partition plate 114 are matched with the inner wall of the tank body 101, and the left side and the right side of the partition plate 114 are fixedly connected to the inner side wall of the tank body 101. A condensed water inlet 109 is formed in the center of the outer side wall of the tank body 101, high-temperature condensed water carrying dead steam enters the tank body 101 through the condensed water inlet 109, and the high-temperature condensed water entering the tank body 101 contacts with a partition plate 114 because the partition plate 114 is arranged in the tank body 101; meanwhile, the partition plate 114 can increase the surface area in contact with water, so that gas-liquid separation can be better performed, and exhaust steam flows upwards and is discharged from the steam outlet 110 at the top of the tank body 101 for secondary utilization; the high-temperature condensed water after the exhaust steam is recovered is discharged from a sewage outlet 111 at the bottom of the tank body 101 for recovery.

The embodiment of the present application further provides a steam recovery system, which may include the above flash tank, and may further include components such as a drain assembly and a water tank 300, where the drain assembly includes a drain valve 104 and a connecting pipe 116 that are connected to each other, and the water tank 300 is used to store high-temperature condensed water for secondary utilization. The steam recovery system can save energy, avoid energy waste and reduce white steam pollution.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims (10)

1. The utility model provides a flash tank, its characterized in that, includes a jar body, the internal baffle that is equipped with of jar, the baffle vertical place in the jar is internal, just the baffle with jar internal side wall interconnect, the baffle with the top and the bottom of the jar body are not contacted each other, steam outlet and blowdown outlet have been seted up respectively to the both ends of the jar body, steam outlet with the blowdown outlet communicates each other, condensate inlet has been seted up to jar external side wall.

2. A flash tank according to claim 1, wherein an insulating layer is provided on the outside of the tank body.

3. A flash tank as claimed in claim 1 wherein an exhaust pipe is connected to said steam outlet, a condensate pipe is connected to said condensate inlet, and a drain pipe is connected to said blowdown outlet.

4. The flash tank of claim 1 further comprising a mounting assembly, the mounting assembly comprising a lifting lug and a bracket, the lifting lug being disposed at an end of the tank proximate the steam outlet, the bracket being disposed at an end of the tank proximate the blowdown outlet.

5. A vapor recovery system comprising a flash tank as claimed in any one of claims 1 to 4, wherein an exhaust pipe is connected to the vapor outlet, a condensate pipe is connected to the condensate inlet, and a drain pipe is connected to the blowdown outlet, the vapor recovery system further comprising a drain assembly comprising a drain valve and a connecting pipe connected to each other.

6. The steam recovery system of claim 5, further comprising a drain pipe, wherein the drain pipe is provided with a valve, and the drain pipe and the end of the drain pipe away from the drain outlet are connected with each other.

7. A vapor recovery system in accordance with claim 5, wherein there are two of said hydrophobic assemblies, two of said hydrophobic assemblies being disposed in parallel on said drain pipe, said two hydrophobic assemblies being in communication with each other.

8. The vapor recovery system of claim 7, further comprising a pan, wherein a top of the pan is interconnected to the exhaust pipe, and a bottom of the pan is interconnected to the condensate pipe.

9. The vapor recovery system of claim 8, further comprising a water tank, wherein the water tank defines a water inlet and a water outlet, and the water tank is interconnected with the hydrophobic component and the pan.

10. The vapor recovery system of claim 9, wherein there are three water inlets, one of the water inlets is connected to the hydrophobic component, and the other two water inlets are connected to the bottom and top pipes of the pan and steamer respectively.

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