CN217899829U

CN217899829U - Double-pump heat standby forced circulation pure steam generator

Info

Publication number: CN217899829U
Application number: CN202222122081.5U
Authority: CN
Inventors: 徐世波; 叶银国
Original assignee: Ningbo Feichuang Pharmaceutical Equipment Co ltd
Current assignee: Ningbo Feichuang Pharmaceutical Equipment Co ltd
Priority date: 2022-08-11
Filing date: 2022-08-11
Publication date: 2022-11-25
Anticipated expiration: 2032-08-11

Abstract

The application discloses pure steam generator of hot standby forced circulation of double pump, including evaporimeter, buffer tank, raw water pump and circulating pump. The buffer tank is provided with a first pipeline and a second pipeline, the first pipeline is communicated to the top of the evaporator, and the second pipeline is communicated to the bottom of the evaporator; raw water is conveyed into a buffer tank; the circulating pump is arranged on the first pipeline. Because raw material water needs to get into through the top of evaporimeter, consequently need to set up the circulating pump and provide powerful drive power to drive raw material water and carry out the top entering from the evaporimeter. The application solves the defects of the falling film type pure steam generator and the rising film type pure steam generator, combines the advantages of the falling film type pure steam generator and the rising film type pure steam generator, and is high in practicability.

Description

Double-pump heat standby forced circulation pure steam generator

Technical Field

The application relates to the technical field of pure steam generators, in particular to a double-pump heat standby forced circulation pure steam generator.

Background

The existing pure steam generator has two types, namely a falling film type pure steam generator and a rising film type pure steam generator, and the two types have the following advantages and disadvantages.

The falling film type pure steam generator has the advantages that: the pure steam production speed is high, the dryness index is excellent, the energy consumption is low when the pure steam is used in small yield, and the like; the disadvantages are as follows: the single-pass evaporation raw material water consumption is large, the index of non-condensable gas is easy to exceed the standard, the comprehensive industrial steam consumption is large, and the like. The rising film type pure steam generator has the advantages that: the consumption of raw material water is low, the index of non-condensable gas is excellent, the consumption of comprehensive industrial steam is low, and the like; the disadvantages are as follows: low pure steam production speed, poor dryness index, high energy consumption when being used in small yield and the like. And therefore whichever is employed has corresponding disadvantages.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model aims to provide a double-pump heat standby forced circulation pure steam generator, which solves the defects of a falling film pure steam generator and a rising film pure steam generator, combines the advantages of the falling film pure steam generator and the rising film pure steam generator and has strong practicability.

To achieve the above object, the present application provides a dual-pump hot standby forced circulation pure steam generator, comprising: an evaporator; the buffer tank is provided with a first pipeline and a second pipeline, the first pipeline is connected with the top of the evaporator, and the second pipeline is connected with the bottom of the evaporator; the raw water pump is used for conveying raw water into the buffer tank; and the circulating pump is arranged on the first pipeline.

Compared with the prior art, the beneficial effect of this application lies in: raw material water is pumped to the buffer tank in by the raw material water pump, is sent into raw material water from the bottom of evaporimeter through the second pipeline to send into raw material water from the top of evaporimeter through the circulating pump, thereby reach the effect that raw material water can be sent into from the top and the bottom of evaporimeter respectively, make the evaporimeter have the advantage of rising membrane formula evaporimeter and falling liquid film formula simultaneously, improved the practicality of evaporimeter greatly.

As the improvement, still include the pre-heater, former water pump send raw materials water stream to reach behind the pre-heater the buffer tank for raw materials water preheats to the uniform temperature before getting into the evaporimeter, reduces the energy consumption of buffer tank transmission, improves work efficiency.

As an improvement, the buffer tank is further provided with a third pipeline connected with the preheater, the third pipeline is provided with a first diaphragm valve, the first pipeline is provided with a second diaphragm valve, and through the improvement, the first diaphragm valve is used for controlling the connection and disconnection between the preheater and the buffer tank, and the second diaphragm valve is used for controlling the connection and disconnection between the buffer tank and the top of the evaporator.

In an improvement, the buffer tank is of a diaphragm type, and a fourth pipeline is further arranged on the buffer tank and used for discharging non-condensable gas.

As the improvement, the evaporator is also provided with a pure steam outlet and a concentrated water outlet, the concentrated water outlet is positioned at the bottom of the buffer tank, and by the improvement, the distilled water is discharged from the pure steam outlet, and the concentrated water is discharged from the concentrated water outlet after the distilled water is evaporated.

As an improvement, the evaporator is provided with a fifth pipeline, the fifth pipeline is connected with the concentrated water outlet, the fifth pipeline is sequentially provided with a sanitary ball valve, a drain valve and a check valve, through the improvement, the sanitary ball valve can be used for cutting off or switching on the on-off of the concentrated water in the fifth pipeline and can be adjusted and controlled, the drain valve can automatically discharge the condensed water out of the fifth pipeline, and the check valve can prevent the concentrated water from flowing reversely, so that the smooth discharge of the concentrated water is ensured, and the purity of the distilled water is improved.

Drawings

FIG. 1 is a schematic diagram of the overall structure operation of the present application;

fig. 2 is a partially enlarged schematic view of the evaporator structure of fig. 1.

In the figure: 1. an evaporator; 11. a pure steam outlet; 12. a fifth pipeline; 121. a concentrate outlet; 122. a sanitary ball valve; 123. a drain valve; 124. a check valve; 2. a buffer tank; 21. a first conduit; 211. a second diaphragm valve; 22. a second conduit; 23. a third pipeline; 231. a first diaphragm valve; 24. a fourth conduit; 3. a raw water pump; 4. a circulation pump; 5. a preheater.

Detailed Description

The present application is further described below with reference to specific embodiments, and it should be noted that, without conflict, any combination between the embodiments or technical features described below may form a new embodiment.

In the description of the present application, it should be noted that, for the orientation words, such as the terms "central", "upper", "lower", "front", "back", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation and positional relationship based on the orientation or positional relationship shown in the drawings, are only for convenience of describing the present application and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and should not be construed as limiting the specific scope of the present application.

It should be noted that the terms "first," "second," and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.

The terms "comprises," "comprising," and "having," and any variations thereof, in the description and claims of this application, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

The application provides a pure steam generator of forced circulation of hot standby of double pump, as shown in fig. 1, including evaporimeter 1, buffer tank 2, raw water pump 3 and circulating pump 4. A first pipeline 21 and a second pipeline 22 are arranged on the buffer tank 2, the first pipeline 21 is communicated to the top of the evaporator 1, and the second pipeline 22 is communicated to the bottom of the evaporator 1; raw water conveys raw water into a buffer tank 2; the circulation pump 4 is provided on the first pipe 21. Since the raw water needs to enter through the top of the evaporator 1, a circulation pump 4 needs to be provided to provide a strong driving force to drive the raw water to enter from the top of the evaporator 1.

Specifically, as shown in fig. 1, the system further includes a preheater 5, and the raw water pump 3 delivers the raw water to the buffer tank 2 after passing through the preheater 5. The preheater 5 sets up can effectively accomplish the intensification to raw materials water before circulating pump 4 and evaporimeter 1 to avoid raw materials water to heat up inhomogeneous problem behind buffer tank 2.

Specifically, as shown in fig. 2, the buffer tank 2 is further provided with a third pipeline 23 connected to the preheater 5, the third pipeline 23 is provided with a first diaphragm valve 231, and the first pipeline 21 is provided with a second diaphragm valve 211. When the evaporator 1 is circulated by the circulation pump 4, the first diaphragm valve 231 may be closed to allow sufficient circulation between the buffer tank 2 and the evaporator 1, and the second diaphragm valve 211 may be used to stop the introduction of the first pipe 21 in the latter half of the circulation, so that the raw material water is introduced into the heating pipe from the bottom to the top, thereby shortening the retention time of the raw material water in the evaporator 1 and being suitable for evaporation of heat-sensitive substances.

Preferably, the first diaphragm valve 231 is a pneumatic diaphragm valve, and pneumatic control is convenient and has high automation degree. The second diaphragm valve 211 is a manual diaphragm valve, and the second diaphragm valve 211 is only required to be in a few practical situations, so that the manual setting can avoid misoperation and save cost.

Specifically, as shown in fig. 2, the buffer tank 2 is of a diaphragm type, and a fourth pipe 24 is further provided on the buffer tank 2, and the fourth pipe 24 is used for discharging the non-condensable gas.

Specifically, the evaporator 1 is further provided with a pure steam outlet 11 and a concentrated water outlet 121, and the concentrated water outlet 121 is located at the bottom of the buffer tank 2.

It should be noted that the diaphragm valves are also disposed on the fourth pipeline 24 and the steam outlet pipeline, and the disposition of the valves in the corresponding control positions of the rest of the pipelines in the present application is a common technical means for those skilled in the art, and therefore, the detailed description of the present application is omitted.

Specifically, as shown in fig. 2, the evaporator 1 is provided with a fifth pipeline 12, the fifth pipeline 12 is connected to a concentrated water outlet 121, and the fifth pipeline 12 is provided with a ball valve 122, a drain valve 123 and a check valve 124 in sequence. The check valve 124 is disposed to prevent the reverse flow of the concentrated water, which affects the quality of the distilled water, and the ball valve 122 is a control mechanism, and thus is disposed near the outlet of the evaporator 1.

The foregoing has described the general principles, essential features, and advantages of the application. It will be understood by those skilled in the art that the present application is not limited to the embodiments described above, which are merely illustrative of the principles of the application, but that various changes and modifications may be made without departing from the spirit and scope of the application, and such changes and modifications are intended to be within the scope of the application as claimed. The scope of protection claimed by this application is defined by the following claims and their equivalents.

Claims

1. Double pump heat standby forced circulation pure steam generator characterized in that includes:

an evaporator;

the buffer tank is provided with a first pipeline and a second pipeline, the first pipeline is connected with the top of the evaporator, and the second pipeline is connected with the bottom of the evaporator;

the raw water pump is used for conveying raw water into the buffer tank; and

and the circulating pump is arranged on the first pipeline.

2. The dual pump hot standby forced circulation pure steam generator of claim 1, wherein: still include the pre-heater, former water pump send raw materials water stream to reach behind the pre-heater the buffer tank.

3. The dual pump hot standby forced circulation pure steam generator of claim 2, wherein: the buffer tank is further provided with a third pipeline connected with the preheater, the third pipeline is provided with a first diaphragm valve, and the first pipeline is provided with a second diaphragm valve.

4. The dual pump hot standby forced circulation pure steam generator of claim 1, wherein: the buffer tank is of a diaphragm type, and a fourth pipeline is further arranged on the buffer tank and used for discharging non-condensable gas.

5. The dual pump hot standby forced circulation pure steam generator of claim 1, wherein: the evaporator is also provided with a pure steam outlet and a concentrated water outlet, and the concentrated water outlet is positioned at the bottom of the buffer tank.

6. The dual pump hot standby forced circulation pure steam generator of claim 5, wherein: the evaporator is provided with a fifth pipeline, the fifth pipeline is connected with the concentrated water outlet, and the fifth pipeline is sequentially provided with a sanitary ball valve, a drain valve and a check valve.