JP3242088U - Waste water collection device for pipeline expansion vessel - Google Patents

Abstract

Kind Code: A1 A wastewater recovery apparatus is provided that realizes effective recovery of high-value wastewater and improves the energy utilization rate.
A drainage recovery device for a pipe expansion tank includes a pipe expansion tank 1, a multi-stage water seal 2, an exhaust device 3 and a condensate water injector 4. A piped expansion tank is used to expand the steam into the water and is connected to the outlet end of the piped expansion tank via a drain pipe. Multi-stage water seals are used to transport water in pipe expansion tanks. An exhaust device is connected to the outlet end of the multi-stage water seal via an exhaust pipe and is used to receive water from the multi-stage water seal. A condensate water injector is connected to the inlet end of the multi-stage water seal via a water injection pipe and is used to inject condensate into the multi-stage water seal.
[Selection drawing] Fig. 1

Description

The invention relates to the technical field of wastewater recovery, in particular to wastewater recovery equipment for pipeline expansion ships.

At present, the wastewater collected in the pipeline expansion vessel is mainly the wastewater of the heating device of the fixed cooling water tank, the wastewater of the auxiliary steam to the manual door of the degassing device, and the heating station of the auxiliary steam tank. reheating supply shaft seal drainage after the cold section regulating door, reheating supply shaft seal drainage after the cold section electrical door, fuel trace and purge after the reverse check door. Add and adjust steam supply to drain, shaft seal adjustment door and auxiliary steam drain door to gas and 4 rear drains. Pump to electric front door of auxiliary exhaust box, constant cold tank heater drain and check door Fuel heat purge after drain is used in winter, all through fixed exhaust expansion vessel to chemical waste water, auxiliary exhaust box temperature is low Therefore, not only the auxiliary exhaust box drain is often opened for drainage, but also to the chemical wastewater through the fixed exhaust expansion vessel, other drainage is only possible with warm pipes opened before input, high quality steam Leads to exhaust waste.

At present, there are many types of hydrophobic traps such as bellows, which not only can expel foreign substances other than water vapor in a timely manner, but are also easy to detect and repair. However, the discharged hot water cannot be collected in long pipelines, nor can a closed pipe network be formed to collect the waste water. As a result, high quality steam is wasted and high quality waste water cannot be recovered effectively.

Therefore, at present, the technical problem to be solved is how to provide a drainage recovery device for a pipeline expansion ship that can effectively recover a good quality drainage channel.

An object of the invention is to provide a waste water recovery device for a tube expansion tank. The invention solves the technical problem of high-quality steam exhaust waste, realizes effective recovery of high-quality wastewater, and improves energy utilization.

To achieve the above objectives, the invention provides a waste water recovery device for tube expansion vessels, including:

A pipe expansion tank for expanding steam into water in said pipe expansion tank, and a multi-stage water seal are connected to the outlet end of the pipe expansion container via a drain pipe, the multi-stage water seal connecting the water in the pipe expansion container to the outlet end of the pipe expansion container. used to transport

An exhaust device is connected to the outlet end of the multi-stage water seal via an exhaust pipe, and the exhaust device is used to receive water at the multi-stage water seal.

Condensate water injection is connected to the inlet end of the multi-stage water seal via a water injection pipe, and uses a condensate water injector to inject condensate water into the multi-stage water seal.

In one embodiment it also includes:
A stationary discharge expansion vessel is connected to the outlet end of the pipeline expansion vessel through a drain pipe and is used to discharge the water in the pipeline expansion vessel.
In one embodiment, the number of multi-stage water seals is six.
In one embodiment, the drain line includes a first valve.
In one embodiment, a second valve is provided on the water injection line.
In one embodiment, a third valve is provided on the exhaust pipe.
In one embodiment, the drain includes a fourth valve, a first motorized valve and a second motorized valve.

The invention provides a waste water recovery device for pipeline expansion vessels, which has the following beneficial effects compared with the prior art:

The invention includes a pipe expansion vessel, a multi-stage water seal, a steam exhaust system and a condensate injection system. A pipe expansion vessel is used to expand the steam in the pipe expansion vessel into the water. A multi-stage water seal is connected to the outlet end of the pipe expansion vessel via a drain pipe. Multi-stage water seals are used to transport water in piped expansion vessels. A steam exhaust is connected to the outlet end of the multi-stage water seal via an exhaust pipe. A steam exhaust system is used to receive water in a multi-stage water seal. A condensate water injector is connected to the inlet end of the multistage water seal via a water injection tube. A condensate water injection device is used to inject condensate into the multi-stage water seal. The invention solves the technical problem of high-quality steam exhaust waste, realizes effective recovery of high-quality waste water, and improves the utilization rate of energy.

FIG. 4 shows a structural diagram of a waste water recovery device for a pipeline expansion vessel in an embodiment of the invention; FIG. 2 shows a structural diagram of a multi-stage water seal in an embodiment of the invention; In the figure, 1. pipeline expansion vessel;2. Multistage water seal;3. 4. Exhaust steam system; 5. condensate water injector; Fixed discharge and expansion vessel. 6, the first valve. 7, second valve. 8, third valve. 9, 4th valve. 10, the first electric valve. 11, 2nd electric valve.

Specific embodiments of the invention are specified in more detail below in combination with the accompanying drawings and embodiments. The following embodiments are used to specify the invention, but need not limit the scope of the invention.

In the specifications of this application, "middle", "top", "bottom", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", It is understood that terms such as "inner", "outer", etc. refer to orientations or orientations based on orientations or orientations shown in the accompanying drawings solely for the purpose of facilitating and simplifying the specification of this application. It is important to keep It does not indicate or imply that the devices or elements referred to must have a particular orientation, but are constructed and operated in a particular orientation and therefore cannot be construed as a limitation of this application.

The terms "first" and "second" are used for specification purposes only and are understood to indicate or imply relative importance or to imply the number of technical features shown. shouldn't. Thus, features defined as "first" or "second" may explicitly or implicitly include one or more of these features. In the specifications of the present application, "plurality" means two or more unless otherwise specified.

In the specification of this application, the terms "installation", "connection" and "connection", unless otherwise expressly and modified, are broadly understood, which can be, for example, fixed connection, removable connection or integral connection. shall be Mechanical connection and electrical connection are also possible. It can connect directly, it can connect indirectly through an intermediary, it can connect within two components. For those of ordinary skill in the art, the specific meaning of the above terms in this application can be understood on a case-by-case basis.

Below is a specification diagram of a preferred embodiment of the invention in combination with the accompanying drawings.

As shown in FIG. 1, an embodiment of the invention discloses a wastewater recovery device for a pipeline expansion vessel and includes:
A pipe expansion tank 1 for expanding steam into water in the pipe expansion tank 1 and a multi-stage water seal 2 are connected to the outlet end of the pipeline expansion vessel 1 through a drain pipe, and the multi-stage water seal 2 is used to expand the pipeline. It is used for transporting water inside the container 1 .

An exhaust device 3 is connected to the outlet end of the multi-stage water seal 2 via an exhaust pipe, and the exhaust device 3 is used to receive water in the multi-stage water seal 2 .

A condensate injection device 4 is connected to the inlet end of the multistage water seal 2 via a water injection pipe, and the condensate injection device 4 is used to inject condensate into the multistage water seal 2 .

In this embodiment, a pipeline expansion vessel 1, a multi-stage water seal 2, a steam exhaust device 3 and a condensate water injection device 4 are disclosed. The pipeline expansion vessel 1 is used to expand the steam entering the pipeline expansion vessel into water, and the multi-stage water seal 2 is connected to the outlet end of the pipeline expansion vessel 1 through a drain pipe to form the multi-stage water seal. 2 is used to transport water in pipeline expansion vessel 1 . The exhaust device 3 is connected to the outlet end of the multi-stage water seal 2 via an exhaust pipe. An exhaust device 3 is used to receive water from the multistage water seal 2 . A condensate water injection device 4 is connected to the inlet end of the multistage water seal 2 via a water injection pipe. A condensate injection device 4 is used to inject condensate into the multi-stage water seal 2 . The invention solves the technical problem of high-quality steam exhaust waste, realizes effective recovery of high-quality waste water, and improves the utilization rate of energy.

The height of the multistage water seal 2 in the present application can be set according to the maximum steam pressure of the pipeline expansion ship 1, the working pressure, and the pressure of the exhaust device 3, but is not particularly limited here. For example, the maximum steam pressure of the pipeline expansion vessel 1 is 100 kPa, the working pressure is 70 kPa, and the pressure of the exhaust system 3 is -80 kPa. At this time, the height of the six-stage water seal 2 exceeds 18 meters (hydraulic h=180*1000/pg=18 meters, water density p=1000kg/m3, g=10N/kg), each multi-stage water seal 2 is 3.2 meters. The multi-stage water seal 2 in the present application does not affect the degree of vacuum of the turbine (not shown) even when there is no water in the pipe expansion tank 1 . At the same time, water priming is required before the multi-stage water seal 2 can be used. The condensate water injector 4 injects condensate into the multi-stage water seal 2 through the water injection pipe, and can discharge the air collected in the multi-stage water seal 2 by injecting the condensed water into the multi-stage water seal 2. - 特許庁

In some embodiments of the present application, the fixed discharge expansion vessel 5 is connected to the outlet end of the pipeline expansion vessel 1 via a drain pipe, and the fixed discharge expansion vessel 5 is located inside the pipeline expansion vessel 1. used to drain water from

In this embodiment, after the steam is expanded into the water by the pipe expansion vessel 1, the current water quality is tested to be acceptable. If the current water quality is acceptable, the acceptable water will be transported to the water seal 2 at most stages through the drain. If the current water quality is unacceptable, the unacceptable water is transported through the drain pipe to the fixed waste water expansion tank 5, and the unacceptable water is discharged through the fixed waste water expansion tank 5. By installing a fixed wastewater expansion vessel 5, the present application can effectively discharge unqualified water quality and realize recycling of good quality wastewater.

In some embodiments of the present application, the number of multi-stage water seals 2 is six.
In some embodiments of the application the drain comprises a first valve 6 .

In this embodiment, when qualified water needs to be delivered to the multi-stage water seal 2, the first valve 6 is opened to achieve delivery of qualified water. At the same time, the water flow to the multi-stage water seal 2 can be controlled by controlling the opening of the first valve 6.

In some embodiments of the present application, a second valve 7 is provided on the water immersion line.
In this embodiment, the condensate can be injected into the multi-stage water seal 2 by opening the second valve 7 .

In some embodiments of the present application, a third valve 8 is provided on the exhaust pipe.
In this embodiment, by opening the third valve 8, qualified water can be transported to the exhaust steam device 3, realizing recycling and utilization of qualified water.

In some embodiments of the present application, the drain pipe comprises a fourth valve 9, a first motorized valve 10 and a second motorized valve 11.
In this embodiment, by controlling the fourth valve 9 , the first motor-operated valve 10 and the second motor-operated valve 11 , unqualified water can be transported to the fixed discharge expansion tank 5 .

The principle of operation of the wastewater recovery apparatus for a pipeline expansion ship proposed in this embodiment is as follows.
When using the pipeline expansion vessel wastewater recovery device, steam enters the pipeline expansion vessel 1, expands the steam into the water in the pipeline expansion container 1, and then tests the water quality. When the water quality is unacceptable, the fourth valve 9, the first electric valve 10 and the second electric valve 11 are opened and the first valve 6 and the second valve 7 are closed. The unqualified water is transported to the fixed discharge expansion tank 5 through the drain pipe, and when the water quality is certified, the second valve 7 is first opened, and the condensed water is injected through the second valve 7. A device 4 injects condensed water into the multi-stage water seal 2, then opens the first valve 6, closes the fourth valve 9, and closes the first motor-operated valve 10 and the second motor-operated valve 11 to the qualified Water will be transferred to the multi-stage water seal 2 and finally the third valve 8 will be opened. The qualifying water is transported through the exhaust pipe to the exhaust steam system 3, and the exhaust steam system 3 utilizes the qualifying water for the work of the steam turbine, realizing recovery and utilization of good quality water.

In summary, the proposed embodiment discloses a pipeline expansion vessel 1, a multi-stage water seal 2, a steam exhaust device 3 and a condensate injection device 4. The pipeline expansion vessel 1 is used to expand steam in the pipeline expansion vessel into water. A multi-stage water seal 2 is connected to the outlet end of the pipeline expansion vessel 1 via a drain pipe. A multi-stage water seal 2 is used to transport water within the pipeline expansion vessel 1 . The exhaust device 3 is connected to the outlet end of the multi-stage water seal 2 via an exhaust pipe. The exhaust device 3 is used to receive water from the multi-stage water seal 2, the condensate water injector 4 is connected to the inlet end of the multi-stage water seal 2 via the water injection pipeline, the condensate water injector 4 is connected to the multi-stage water seal 2. used to inject condensate into the The invention can solve the technical problem of high-quality steam exhaust waste, realize effective recovery of high-quality wastewater, and improve the utilization rate of energy.

In the above specifications of the embodiments, the specified features, structures, materials or characteristics may be combined in any suitable manner in any one or more of the embodiments or examples.

Although the invention has been specified with reference to the above embodiments, various modifications can be made to the invention and equivalent objects can be substituted for its components without departing from the scope of the invention. In particular, all features in the embodiments disclosed by the invention can be combined with each other in any way, unless there are structural contradictions. The reason these combinations are not fully described herein is only for space saving and resource saving considerations. Accordingly, the invention is not limited to the particular embodiments disclosed herein, but encompasses all technical schemes falling within the scope of the claims.

A person of ordinary skill in the art can understand that the above are only preferred embodiments of the invention and are not used to limit the invention. The invention is specified in detail with reference to the above-described embodiments, but for engineers in the field, it is possible to modify the technical scheme recorded in the above-described embodiments, or replace some of the technical features with equivalents. can be replaced with Modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the invention shall fall within the scope of protection of the invention.

Claims (7)

A pipe expansion tank for expanding steam into water and a multi-stage water seal are connected to the outlet end of the pipe expansion container through a drain pipe, and the multi-stage water seal is used to transport the water in the pipe expansion container. be done.
An exhaust device is connected to the outlet end of the multi-stage water seal via an exhaust pipe, and the exhaust device is used to receive water at the multi-stage water seal.
The condensate water injection is connected to the inlet end of the multi-stage water seal via a water injection pipe, and the condensate water injector is used to inject condensate water into the multi-stage water seal. Device. The pipeline according to claim 1, characterized in that the fixed discharge expansion vessel is connected to the outlet end of the pipeline expansion vessel via a drain pipe and used to discharge water in the pipeline expansion vessel. Drainage recovery equipment for expansion vessels. 2. The drainage recovery system for a pipeline expansion ship according to claim 1, wherein the number of multi-stage water seals is six. 2. The drainage recovery system for a pipeline expansion ship according to claim 1, wherein the drain line is provided with a first valve. 2. The drainage recovery system for a pipeline expansion ship according to claim 1, wherein the water injection pipeline is provided with a second valve. 2. A waste water recovery system for a pipeline expansion ship according to claim 1, wherein the exhaust steam pipeline is provided with a third valve. 3. The wastewater recovery device for a pipeline expansion ship according to claim 2, wherein the drain pipe has a fourth valve, a first motor-operated valve and a second motor-operated valve.

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