CN218627825U - Energy-saving system for realizing exchange of water ring vacuum pump and steam jet vacuum pump - Google Patents

Energy-saving system for realizing exchange of water ring vacuum pump and steam jet vacuum pump Download PDF

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Publication number
CN218627825U
CN218627825U CN202222974394.3U CN202222974394U CN218627825U CN 218627825 U CN218627825 U CN 218627825U CN 202222974394 U CN202222974394 U CN 202222974394U CN 218627825 U CN218627825 U CN 218627825U
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vacuum pump
steam
condenser
water ring
ring vacuum
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李伟民
刘跃
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SHANGHAI SHUOFENGYAN NEW MATERIAL TECHNOLOGY CO LTD
Shanghai Baosteel Energy Service Co Ltd
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SHANGHAI SHUOFENGYAN NEW MATERIAL TECHNOLOGY CO LTD
Shanghai Baosteel Energy Service Co Ltd
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Abstract

The utility model relates to a realize economizer system of steam jet vacuum pump interchange water ring vacuum pump, including steam ejector, condenser and from taking miniwatt water ring vacuum pump, steam ejector's suction mouth links to each other with the female pipe of evacuation, and steam ejector will transmit vapour gas mixture to condenser, and the water vapor condensation water of condenser in with vapour gas mixture is transmitted to the hot-well, and the condenser transmits the dry air that does not condense in with vapour gas mixture to taking miniwatt water ring vacuum pump certainly, and steam ejector's export links to each other and transmits superheated steam to condenser with the condenser, and the hydrophobic export of condenser links to each other with the hot-well. The energy-saving system for realizing the exchange of the water ring vacuum pump by the steam jet vacuum pump is used for the environment with different requirements on the vacuum degree; especially, a higher energy-saving effect is required to be obtained, and the energy-saving system is reasonably adjusted, so that the electric energy can be further saved, the consumption of steam is reduced, the whole system is simpler, and the operation is more worry-saving.

Description

Energy-saving system for realizing exchange of water ring vacuum pump and steam jet vacuum pump
Technical Field
The utility model relates to a turbo generator set condenser evacuation equipment field especially relates to steam jet technical field, specifically indicates an economizer system who realizes steam jet vacuum pump interchange water ring vacuum pump.
Background
The steam injection technology uses superheated steam with certain pressure as a power source to convert pressure energy into velocity energy, so that the pressure in a suction area is reduced to generate vacuum.
The present wide application is mainly water ring vacuum pump in turbo generator set condenser evacuation equipment. However, such devices have a number of disadvantages, particularly:
1. economy of use
When the water ring vacuum pump is designed and selected, the principle of quickly establishing vacuum and maximum allowable air leakage is taken, so that the design allowance selection of the vacuum pump and a matched motor is large when the vacuum pump and the matched motor are operated under normal working conditions, the power consumption of the operation of a vacuum pumping system is large, the power plant utilization rate index is influenced, and energy is not saved.
See pump A and pump B in FIG. 1 or FIG. 2
2. Safety feature
The matched motor is generally a fixed-frequency motor, the matched voltage and current are high, and potential safety hazards exist when the motor is in a running state for a long time.
Therefore, many users of the steam turbine generator unit comprehensively consider the aspects of economy, safety and the like, and the original vacuumizing system of the condenser of the steam turbine generator unit is improved by adopting the mature steam injection technology which is widely applied in practice.
Steam injection technology and applications have been developed since a long time ago, and have not been actually developed due to limitations of design conditions.
It is now common to use a combination of a steam jet vacuum pump + water ring vacuum pump (see figure 1). The steam jet vacuum pump adopts low-quality steam as power steam, can obtain higher condenser vacuum degree and thoroughly solve the defects of the water ring vacuum pump, but the change of the load of a unit influencing the steam consumption of the steam jet vacuum pump is not too large, which is one of the defects. The steam jet vacuum pump has the advantages that the application effect is obvious in summer working conditions, but the operation of the unit is met only by maintaining vacuum without increasing the vacuum degree in winter working conditions, and at the moment, if the steam jet vacuum pump is put into operation again, the steam consumption is relatively low, energy is not saved, so that one path of O-O (shown in figure 2) is connected to the original vacuum pumping system, and only one self-provided low-power water ring vacuum pump (pump C) is put into operation to maintain vacuum.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the shortcoming of above-mentioned prior art, providing one kind and satisfying simple structure, operation save worry, the comparatively extensive economizer system who realizes steam jet vacuum pump interchange water ring vacuum pump of application scope.
In order to achieve the above object, the utility model discloses a realize that steam jet vacuum pump exchanges economizer system of water ring vacuum pump as follows:
this realize economizer system of steam jet vacuum pump interchange water ring vacuum pump, the system link to each other with vacuum pumping system's female pipe of taking vacuum, its key feature is, the system include steam ejector, condenser and take miniwatt water ring vacuum pump certainly, steam ejector's suction opening link to each other with vacuum pumping female pipe, steam ejector will transmit vapour gas mixture to condenser, condenser condense the vapor in the vapour gas mixture into water and transmit to the heat well, the condenser transmit the dry air that does not condense in the vapour gas mixture to take miniwatt water ring vacuum pump certainly, steam ejector's export link to each other and transmit superheated steam to condenser with the condenser, the hydrophobic export of condenser link to each other with the heat well, condenser's noncondensable gas export with take miniwatt water ring vacuum pump's entry link to each other, take miniwatt water ring vacuum pump's entry to link to each other with the entry of water ring vacuum pump certainly.
Preferably, the condenser comprises a shell, a tube plate and a tube bundle, wherein the tube plate and the tube bundle penetrate through the shell of the condenser.
Preferably, the system further comprises a steam pipeline, a flow meter, a manual valve and a pneumatic regulating valve, wherein the flow meter, the manual valve and the pneumatic regulating valve are all installed on the steam pipeline, the flow meter, the manual valve and the pneumatic regulating valve are sequentially connected, and an outlet of the pneumatic regulating valve is connected with the steam ejector.
Preferably, thermal measurement points are arranged on the steam pipeline, the flow meter, the manual valve and the pneumatic regulating valve, the thermal measurement points are arranged on the steam pipeline, and a drain valve is arranged at the bottom of the steam pipeline.
Preferably, the steam ejector, the condenser and the self-contained low-power water ring vacuum pump are designed in an integrated process.
Preferably, the system further comprises a pneumatic ball valve, the pneumatic ball valve being mounted between the condenser and the hot well.
Preferably, the system further comprises a manual valve and a pneumatic butterfly valve, and the manual valve and the pneumatic butterfly valve are both arranged on a suction pipeline of the steam ejector.
Preferably, the system also comprises a pneumatic gate valve, and the pneumatic gate valve is arranged on a connecting pipeline between the inlet of the self-contained low-power water ring vacuum pump and the inlet of the water ring vacuum pump.
The energy-saving system for realizing the exchange of the water ring vacuum pump by the steam jet vacuum pump is used for the environment with different requirements on the vacuum degree; especially, a higher energy-saving effect needs to be obtained, and the energy-saving system is reasonably adjusted, so that the electric energy can be further saved, the consumption of steam can be reduced, and the whole system is simpler and more worry-saving to operate.
Drawings
Fig. 1 is a schematic structural diagram of an energy-saving system for realizing the exchange of a steam jet vacuum pump and a water ring vacuum pump in the prior art.
Fig. 2 is the structural schematic diagram of the energy saving system for realizing the exchange of the water ring vacuum pump with the steam jet vacuum pump of the utility model.
Detailed Description
In order to more clearly describe the technical content of the present invention, the following further description is given with reference to specific embodiments.
The utility model discloses an economizer system of this realization steam jet vacuum pump interchangeable water ring vacuum pump, the system link to each other with the female pipe of evacuation system, wherein the system include steam ejector, condenser and take miniwatt water ring vacuum pump certainly, steam ejector's suction mouth link to each other with the female pipe of evacuation, steam ejector will transmit steam gas mixture to condenser, the condenser condense into water transmission to the hot-well with the steam in the steam gas mixture, the condenser transmit to taking miniwatt water ring vacuum pump certainly with the dry air that does not condense in the steam gas mixture, steam ejector's export link to each other and transmit superheated steam to condenser with the condenser, the hydrophobic export of condenser link to each other with the hot-well, the noncondensable gas export of condenser link to each other with the entry from taking miniwatt water ring vacuum pump, the entry from taking miniwatt water ring vacuum pump link to each other with the entry of water ring vacuum pump.
As a preferred embodiment of the present invention, the condenser includes a shell, a tube plate and a tube bundle, and the tube plate and the tube bundle pass through the shell of the condenser.
As the preferred embodiment of the utility model, the system still include steam pipe, flowmeter, manual valve and pneumatic control valve all install on steam pipe, flowmeter, manual valve and pneumatic control valve connect gradually, pneumatic control valve's export with steam jet ejector link to each other.
As the preferred embodiment of the utility model, steam line, flowmeter, manual valve and pneumatic control valve limit be equipped with thermal engineering measurement station, thermal engineering measurement station install on steam line, steam line's bottom be equipped with the trap.
As the preferred embodiment of the utility model, the steam ejector, the condenser and the self-carrying low-power water ring vacuum pump are integrated process design.
As the preferred embodiment of the utility model, the system still include pneumatic ball valve, pneumatic ball valve install between condenser and hot-well.
As a preferred embodiment of the present invention, the system further comprises a manual valve and a pneumatic butterfly valve, both of which are installed on the suction pipeline of the steam ejector.
As the preferred embodiment of the present invention, the system further comprises a pneumatic gate valve, wherein the pneumatic gate valve is installed on the pipeline connecting the inlet of the self-contained low power water ring vacuum pump and the inlet of the water ring vacuum pump.
The utility model discloses an among the concrete implementation mode, this energy-saving system who realizes steam jet vacuum pump (from taking the micropump) interchange water ring vacuum pump, the system link to each other its characterized in that with vacuum pumping system's female pipe of evacuation: the system comprises a steam ejector, a condenser (tubular heat exchanger), a self-contained low-power water ring vacuum pump (pump C) and the like, wherein a suction opening of the steam ejector is connected with a vacuumizing main pipe, the steam ejector transmits a steam-gas mixture to the condenser (tubular heat exchanger), the condenser (tubular heat exchanger) condenses water vapor in the steam-gas mixture into water to be transmitted to a hot well, and the condenser (tubular heat exchanger) transmits non-condensed dry air in the steam-gas mixture to the self-contained low-power water ring vacuum pump (pump C). The steam ejector's export link to each other with condenser (tubular heat exchanger), and transmit superheated steam to condenser (tubular heat exchanger), the hydrophobic export of condenser (tubular heat exchanger) link to each other with the heat well, condenser (tubular heat exchanger) the noncondensable gas export with take miniwatt water ring vacuum pump (pump C) entry to link to each other, take miniwatt water ring vacuum pump (pump C) entry to link to each other with water ring vacuum pump (pump A, pump B) entry.
The condenser (tubular heat exchanger) comprises a shell, a tube plate, a tube bundle and the like, wherein the tube plate and the tube bundle penetrate through the shell of the condenser (tubular heat exchanger).
And the hydrophobic outlet of the condenser (tubular heat exchanger) is connected with the hot well.
And the inlet of the self-provided low-power water ring vacuum pump (pump C) is connected with the inlets of the water ring vacuum pumps (pump A and pump B). See "O-O" connection in FIG. 2.
The system also comprises a steam pipeline, a flowmeter, a manual valve, a pneumatic regulating valve and the like, wherein the steam pipeline, the flowmeter, the manual valve, the pneumatic regulating valve and the like receive power steam, and the outlet of the pneumatic regulating valve is connected with the steam ejector.
The steam pipeline, the flowmeter, the manual valve, the pneumatic regulating valve and other places are provided with thermal measuring points, and the bottom of the steam pipeline is provided with a drain valve.
The steam ejector, the condenser (tubular heat exchanger), the self-contained low-power water ring vacuum pump (pump C) and the like are designed as an integrated process.
The system also includes a pneumatic ball valve installed between the condenser (tubular heat exchanger) and the hot well.
The system also comprises a flowmeter, a manual valve, a pneumatic regulating valve and a thermal measurement point, wherein the flowmeter, the manual valve, the pneumatic regulating valve and the thermal measurement point are all arranged on the steam pipeline.
The system also comprises a manual valve and a pneumatic butterfly valve, wherein the manual valve and the pneumatic butterfly valve are both arranged on a suction pipeline of the steam ejector.
The system also comprises a pneumatic gate valve which is arranged on a pipeline connecting the inlet of the self-contained low-power water ring vacuum pump (pump C) with the inlets of the water ring vacuum pumps (pump A and pump B).
The economical efficiency, safety and other aspects related to common condenser vacuum pumping equipment (water ring vacuum pumps) including the existing defects can be solved by modifying the mature steam injection technology which is widely applied in practice.
The energy-saving function of the core component sprayer in the steam spraying technology is not exerted to the utmost extent, but the effect of saving energy can be further achieved through continuous optimization of the system.
The utility model discloses realize steam jet vacuum pump (from taking the micropump) interchange water ring vacuum pump's economizer system, reach energy-conserving effect with the reasonable adjustment of operational mode exactly. See FIG. 2
The utility model discloses an among the concrete embodiment, the utility model discloses a through technical means, adjust the mode of operation according to operational environment's change key and be to energy-conserving system's reasonable application, the key lies in the interconversion to energy-conserving system.
The utility model relates to a system for forming vacuum by utilizing steam injection technology, which is used in the environment with different requirements on vacuum degree; especially, a higher energy-saving effect needs to be obtained, and the energy-saving system is reasonably adjusted to further save electric energy and reduce the consumption of steam, so that the whole system is simpler and the operation is more worry-saving.
The utility model discloses parallelly connected installing one set of steam jet technique economizer system additional on the female pipe of condenser evacuation, increasing all the way on this basis from taking the continuous pipeline of miniwatt water ring vacuum pump (pump C) entry and water ring vacuum pump (pump A, pump B) entry all the way, former evacuation equipment keeps unchangeable, and the vacuum when being responsible for the unit start-up is established fast and is reserve.
The steam ejector takes superheated steam as a power source, and vacuum is formed in the ejector through continuous compression and expansion of high-speed jet combined media.
The condenser (tubular heat exchanger) condenses the superheated steam of the steam ejector and the water vapor in the steam-gas mixture of the condenser into water, and the water vapor enters the condensed water system again for recycling.
The last stage of self-contained low-power water ring vacuum pump (pump C) continuously boosts the pressure to above atmospheric pressure, and directly evacuates the non-condensed gas.
The suction side takes the lowest pressure (dry air partial pressure) of the condenser as a design reference point, and calculates the suction amount and the steam consumption matched with the steam ejector on the premise of fully considering the maximum allowable air leakage amount of the vacuum-pumping system. The pipeline that the steam ejector is connected with the vacuumizing main pipe is a suction side, the pipeline that the steam ejector receives power steam is a steam inlet side, and the pipeline that the steam ejector is connected with the condenser (tubular heat exchanger) is a discharge side. See FIG. 1 or FIG. 2
The utility model discloses a steam jet technology economizer system, power steam is imported into the pneumatic control valve through the pipeline, flowmeter, the steam line is equipped with the thermotechnical survey point, the steam line bottom is equipped with the trap; the steam pipeline, the flowmeter, the manual valve, the pneumatic regulating valve and the like receive power steam, and the outlet of the pneumatic regulating valve is connected with the steam ejector; the condenser (tubular heat exchanger) is followed by a pneumatic ball valve (drain inlet heat well recovery), a self-contained low-power water ring vacuum pump (pump C) and the like.
The whole set of energy-saving system adopts an integrated process design (integrated mechanical and integrated thermal control arrangement).
The steam pipeline of the energy-saving system is externally wrapped with a heat insulation layer. The drain pipe of the condenser (tubular heat exchanger) is provided with a sight glass, which is convenient for observation.
In practical application, an energy-saving system for realizing the exchange of the steam jet vacuum pump (with a small pump) and the water ring vacuum pump has a striking mark on site, and the nonstandard operation is prevented. If the space is limited on site, the integral ascending arrangement of the platform can be built.
For a specific implementation of this embodiment, reference may be made to the relevant description in the above embodiments, which is not described herein again.
It is understood that the same or similar parts in the above embodiments may be mutually referred to, and the same or similar parts in other embodiments may be referred to for the content which is not described in detail in some embodiments.
It should be noted that, in the description of the present invention, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In addition, in the description of the present invention, "a plurality" means at least two unless otherwise specified.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The energy-saving system for realizing the exchange of the water ring vacuum pump with the steam jet vacuum pump is used for the environments with different requirements on the vacuum degree; especially, a higher energy-saving effect needs to be obtained, and the energy-saving system is reasonably adjusted, so that the electric energy can be further saved, the consumption of steam can be reduced, and the whole system is simpler and more worry-saving to operate.
In this specification, the invention has been described with reference to specific embodiments thereof. It will, however, be evident that various modifications and changes may be made thereto without departing from the broader spirit and scope of the invention. The specification and drawings are, accordingly, to be regarded in an illustrative rather than a restrictive sense.

Claims (8)

1. The utility model provides an energy-saving system who realizes steam jet vacuum pump exchange water ring vacuum pump, the system link to each other with vacuum pumping system's female pipe of evacuation, its characterized in that, the system include steam ejector, condenser and take miniwatt water ring vacuum pump certainly, steam ejector's suction port link to each other with the female pipe of evacuation, steam ejector will transmit vapour gas mixture to condenser, condenser condense into the water transmission to the hot-well with the vapour in the vapour gas mixture, condenser with the dry air transmission of noncondensable in the vapour gas mixture to take miniwatt water ring vacuum pump certainly, steam ejector's export link to each other with the condenser and transmit superheated steam to the condenser, the hydrophobic export of condenser link to each other with the hot-well, the noncondensable gas export of condenser link to each other with the entry of taking miniwatt water ring vacuum pump certainly, the entry of taking miniwatt water ring vacuum pump certainly link to each other with the entry of water ring vacuum pump.
2. The energy saving system for realizing the water ring vacuum pump exchanged with the steam jet vacuum pump as claimed in claim 1, wherein the condenser comprises a shell, a tube plate and a tube bundle, and the tube plate and the tube bundle penetrate through the shell of the condenser.
3. The energy-saving system for realizing the water ring vacuum pump exchange of the steam jet vacuum pump as claimed in claim 1, further comprising a steam pipeline, a flow meter, a manual valve and a pneumatic regulating valve, wherein the flow meter, the manual valve and the pneumatic regulating valve are all installed on the steam pipeline, the flow meter, the manual valve and the pneumatic regulating valve are sequentially connected, and an outlet of the pneumatic regulating valve is connected with the steam ejector.
4. The energy-saving system for realizing the interchange of the water ring vacuum pump and the steam jet vacuum pump as claimed in claim 3, wherein thermal measurement points are arranged on the sides of the steam pipeline, the flow meter, the manual valve and the pneumatic regulating valve, the thermal measurement points are arranged on the steam pipeline, and a drain valve is arranged at the bottom of the steam pipeline.
5. The energy-saving system for realizing the exchange of the water ring vacuum pump and the steam jet vacuum pump as claimed in claim 1, wherein the steam jet ejector, the condenser and the self-contained low-power water ring vacuum pump are designed in an integrated process.
6. The energy saving system for realizing water ring vacuum pump interchange for steam jet vacuum pump as claimed in claim 1, wherein said system further comprises a pneumatic ball valve, said pneumatic ball valve is installed between the condenser and the hot well.
7. The energy saving system for realizing the interchange of a water ring vacuum pump and a steam jet vacuum pump as claimed in claim 1, further comprising a manual valve and a pneumatic butterfly valve, wherein the manual valve and the pneumatic butterfly valve are both installed on the suction pipeline of the steam jet ejector.
8. The energy-saving system for realizing the exchange of the water ring vacuum pump and the steam jet vacuum pump as claimed in claim 1, further comprising a pneumatic gate valve, wherein the pneumatic gate valve is installed on a connecting pipeline between an inlet of the self-contained low-power water ring vacuum pump and an inlet of the water ring vacuum pump.
CN202222974394.3U 2022-11-09 2022-11-09 Energy-saving system for realizing exchange of water ring vacuum pump and steam jet vacuum pump Active CN218627825U (en)

Priority Applications (1)

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CN202222974394.3U CN218627825U (en) 2022-11-09 2022-11-09 Energy-saving system for realizing exchange of water ring vacuum pump and steam jet vacuum pump

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202222974394.3U CN218627825U (en) 2022-11-09 2022-11-09 Energy-saving system for realizing exchange of water ring vacuum pump and steam jet vacuum pump

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CN218627825U true CN218627825U (en) 2023-03-14

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