CN210159254U - Lithium bromide aqueous solution circulating and filtering system - Google Patents
Lithium bromide aqueous solution circulating and filtering system Download PDFInfo
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- CN210159254U CN210159254U CN201920479229.6U CN201920479229U CN210159254U CN 210159254 U CN210159254 U CN 210159254U CN 201920479229 U CN201920479229 U CN 201920479229U CN 210159254 U CN210159254 U CN 210159254U
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Abstract
The utility model relates to a lithium bromide aqueous solution circulating filtration system, circulating filtration system includes: the utility model discloses a lithium bromide water solution filter, including filter tank, control box, first check valve, the sample valve, the water container, the liquid level changer, the supporting rack, the diaphragm pump, the second check valve, prevent the wave pipe, the cable mount, the terminal box, ac contactor, and alarm control system, utilize the filtration filler of three kinds of differences that set up in the filter tank, arrange according to granularity and accessible rate, realize different levels's filtration to lithium bromide water solution, can ensure that the turbidity of mechanical impurity in the middle of the lithium bromide water solution and solution obviously reduces, adopt the liquid level changer to come the liquid level of real-time detection water container simultaneously, on the one hand can prevent the liquid level too high, the economic cost waste that the overflow of lithium bromide water solution caused, on the other hand also can prevent the waste.
Description
Technical Field
The utility model belongs to the technical field of filter equipment, concretely relates to lithium bromide aqueous solution circulating filtration system.
Background
With the increasing material and living demands of people, the requirement on the environment is higher and higher, a single-effect bromine refrigerator (a lithium bromide refrigerator) is developed as early as 1945, China is put into trial production in the initial stage of 60 years, and the bromine refrigerator has the advantages of wide energy utilization range, low running noise, no high-pressure explosion hazard, safety, reliability, wide refrigerating capacity adjusting range and the like at the end of 80 years, so that the bromine refrigerator is widely applied to various occasions such as textile industry, rubber brewery, chemical plants, metallurgical plants, hospitals, hotels and the like.
The bromine refrigerator takes lithium bromide water solution as working medium. The lithium bromide water solution has strong corrosivity to common carbon steel, which not only influences the performance and normal operation of the unit, but also influences the service life of the lithium bromide refrigerating unit. Meanwhile, the lithium bromide refrigerating unit has extremely high requirement on air tightness, and even trace air can influence the performance of the unit. Therefore, under the action of corrosivity of the lithium bromide aqueous solution and trace oxygen, internal materials (carbon steel, red copper and other metals) of the bromine refrigerator are extremely easy to corrode, formed impurities can be mixed in the lithium bromide aqueous solution and participate in water system circulation, and blockage of a spraying device, pollution of refrigerant water and reduction of the quality of the lithium bromide aqueous solution are caused, so that the refrigerating effect and the working efficiency of a unit are influenced.
In order to avoid the above situation, the shower plate needs to be replaced and cleaned regularly. However, the lithium bromide aqueous solution is a chemical product with strong alkaline property, and cannot be directly discharged into the natural environment, and meanwhile, the price of the lithium bromide aqueous solution is high, and the use cost is continuously increased, so that a circulating filtration system suitable for the lithium bromide aqueous solution is urgently needed to be provided.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problems and the defects, the utility model provides a lithium bromide water solution circulating and filtering system.
The utility model provides a concrete technical scheme as follows:
a lithium bromide water solution circulating and filtering system is characterized in that: the circulation filtration system includes: the device comprises a filter tank, a control box, a first one-way valve, a sampling valve, a water container, a liquid level transmitter, a supporting frame, a diaphragm pump, a second one-way valve, a wave-proof tube, a cable fixing frame, a junction box, an alternating current contactor and an alarm control system; wherein, the control box sets up in the one side of crossing the filter tank, lithium bromide aqueous solution gets into the diaphragm pump through first pipeline from the water container, rethread second check valve gets into in the filter tank, aqueous solution after the filter tank filters gets back to the water container again through the second pipeline, first check valve sets up in the second pipeline, one side of water container is provided with the third pipeline, be provided with the sample valve in the third pipeline, be fixed with the wave prevention pipe through the supporting rack in the water container, be provided with liquid level transmitter in the inside of wave prevention pipe, terminal box, alarm control system and ac contactor's one end is connected gradually through the cable in liquid level transmitter's upper end, ac contactor's the other end is connected the diaphragm pump, thereby the cable is installed and is located the top of liquid level transmitter perpendicularly on the cable.
Furthermore, PPR pipes are selected as the first pipeline, the second pipeline and the third pipeline.
Furthermore, cobblestones, coarse quartz sand and fine quartz sand are sequentially paved in the filter tank from top to bottom.
Furthermore, the filter tank is provided with an automatic back-flushing device, and the automatic back-flushing device is intelligently controlled by a control box.
Furthermore, when the filter tank is in normal filtering operation, the lithium bromide aqueous solution enters from an upper inlet of the filter tank and is discharged from a lower outlet of the filter tank, when the automatic backwashing device is in normal flushing operation, the lithium bromide aqueous solution enters from a lower outlet of the filter tank and is discharged from an upper inlet of the filter tank, and then the backwashing sewage is discharged through the drain valve.
Furthermore, the filter tank is made of polyethylene.
Further, the diaphragm pump is a pneumatic diaphragm pump.
Furthermore, the number of the support frames is 2, and the support frames are respectively arranged at the upper part and the lower part of the wave-proof pipe.
Furthermore, the wave-proof pipe is made of 304 stainless steel pipes, and a plurality of small holes are formed in the inner wall of the wave-proof pipe at different heights.
Furthermore, the alarm control system is provided with an intermediate relay and an alarm device, when the liquid level rises to an upper early warning line, the intermediate relay is closed, and the alarm device gives an upper limit alarm; when the liquid level rises to the upper water level line, the intermediate relay is disconnected, and the diaphragm pump stops; when the liquid level drops to a lower water line, the intermediate relay is closed, and the diaphragm pump is started; when the liquid level drops to the lower early warning line, the intermediate relay is closed, and the alarm device gives an alarm at the lower limit.
Compared with the prior art, the utility model discloses following beneficial effect has:
(1) the filtering fillers of three different types arranged in the filtering tank are arranged according to granularity and the passing rate, the lithium bromide aqueous solution is filtered in different levels, and meanwhile, the water container is used for carrying out repeated circulating filtration, so that the mechanical impurities in the lithium bromide aqueous solution and the turbidity degree of the solution can be obviously reduced, and the reduction of the performance of the lithium bromide refrigerating unit caused by the quality of the lithium bromide aqueous solution is avoided. Meanwhile, the liquid level of the water container is detected in real time by the liquid level transmitter, so that the liquid level can be prevented from being too high, economic cost waste caused by overflow of a lithium bromide aqueous solution can be prevented, and the waste of idle running of the diaphragm pump to electric energy can be prevented. The lithium bromide refrigeration unit is used, so that the cost is reduced, the service life of the refrigeration unit is prolonged, the maximum utilization of resources is realized, and the expected effect is realized.
Drawings
FIG. 1 is a schematic structural diagram of a lithium bromide aqueous solution circulating and filtering system of the present invention;
fig. 2 is a schematic diagram of the internal structure of a filter tank of a lithium bromide aqueous solution circulating and filtering system of the present invention.
Detailed Description
The following embodiments are merely preferred technical solutions of the present invention, and are not intended to limit the present invention in any way. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
As shown in fig. 1-2, the utility model provides a lithium bromide water solution circulating and filtering system, which comprises: the device comprises a filter tank 1, a control box 2, a first one-way valve 3, a sampling valve 4, a water container 5, a liquid level transmitter 6, a support frame 7, a diaphragm pump 8, a second one-way valve 9, a wave-proof tube 10, a cable 11, a cable fixing frame 12, a junction box 13, an alternating current contactor 14 and an alarm control system 15; wherein, the control box 2 is arranged at one side of the filter tank 1 so as to intelligently control the automatic back-flushing device arranged in the filter tank 1, the lithium bromide aqueous solution enters the diaphragm pump 8 from the water container 5 through the first pipeline A and then enters the filter tank 1 through the second one-way valve 9, because of the height difference, the lithium bromide aqueous solution is transported by utilizing the generated large lift through installing the diaphragm pump 8 so as to avoid the pressure difference, the aqueous solution filtered by the filter tank 1 returns to the water container 5 through the second pipeline B, the first one-way valve 3 is arranged in the second pipeline B, the arrangement of the first one-way valve 3 and the second one-way valve 9 avoids the solution from generating the suck-back phenomenon when the aqueous solution is in emergency stop, the third pipeline C is arranged at one side of the water container 5, the sampling valve 4 is arranged in the third pipeline C, so as to detect the discharge of the aqueous solution after being repeatedly filtered from the third pipeline C through the sampling valve 4, be fixed with wave-proof pipe 10 through supporting rack 7 in water container 5, inside at wave-proof pipe 10 is provided with liquid level transmitter 6, terminal box 13 is connected gradually through cable 11 in liquid level transmitter 6's upper end, alarm control system 15, and ac contactor 14's one end, diaphragm pump 8 is connected to ac contactor 14's the other end, thereby cable 11 installs the top that is located liquid level transmitter 6 perpendicularly on cable mount 12, come real-time liquid level that detects the water container through adopting liquid level transmitter, can prevent the liquid level on the one hand too high, the economic cost waste that the overflow of lithium bromide aqueous solution caused, also can prevent the waste of diaphragm pump idle running to the electric energy on the other hand.
Specifically, PPR pipe is selected for use to first pipeline A, second pipeline B, and third pipeline C, and PPR pipe's price is moderate, heat-resisting corrosion-resistant and stable performance, has stronger service life, and as preferred, PPR pipe's wall thickness sets up to 10.1mm, and the bearable water pressure is 3.2 MPa.
Specifically, cobblestones 1-1, coarse quartz sand 1-2 and fine quartz sand 1-3 are sequentially laid in the filter tank 1 from top to bottom, three different filter fillers arranged in the filter tank are used and are arranged according to the granularity and the passing rate, the lithium bromide aqueous solution is filtered in different levels, meanwhile, the water container is used for repeatedly and circularly filtering, the mechanical impurities and the turbidity of the solution in the lithium bromide aqueous solution can be obviously reduced, the reduction of the performance of the lithium bromide refrigerating unit caused by the quality of the lithium bromide aqueous solution is avoided, preferably, the coarse quartz sand has the particle size specification of 2-3mm, the laying thickness is 150-plus-200 mm, the fine quartz sand has the particle size specification of 0.5-1.0mm, and the laying thickness is more than 700 mm.
Specifically, the filter tank 1 is equipped with an automatic backwashing device that is intelligently controlled by the control box 2. Specifically, when the filter tank 1 is in normal filtering operation, the lithium bromide aqueous solution enters from an upper inlet of the filter tank 1 and is discharged from a lower outlet of the filter tank 1, when the automatic backwashing device is in normal flushing operation, the lithium bromide aqueous solution enters from a lower outlet of the filter tank 1 and is discharged from an upper inlet of the filter tank 1, and then backwashing sewage is discharged through the drain valve.
Specifically, the filter tank 1 is made of polyethylene material, and the polyethylene material has the characteristics of no toxicity, no odor, oxidation resistance, corrosion resistance and strong stability, so that the reaction between the filter tank material and the lithium bromide aqueous solution is reduced as much as possible.
Specifically, the diaphragm pump 8 is a pneumatic diaphragm pump, and the height difference existing in the lithium bromide aqueous solution is overcome by installing the diaphragm pump 8 and using the generated large lift.
Specifically, the number of the support frames 7 is 2, and the support frames are respectively arranged at the upper and lower positions of the wave-proof tube 10, so that the wave-proof tube 10 is vertically installed in the water container 5 to further improve the detection accuracy of the liquid level transmitter 6.
Specifically, 304 stainless steel pipes are selected for use by the wave prevention pipe 10, and a plurality of small holes are formed in different heights of the inner wall of the wave prevention pipe 10, so that water flow can smoothly enter the pipe, and the small holes can filter impurities such as silt and the like and can eliminate influences of dynamic pressure and waves on installation and measurement of the liquid level transmitter 6.
Specifically, the alarm control system 15 is provided with an intermediate relay and an alarm device, when the liquid level rises to an upper early warning line, the intermediate relay is closed, and the alarm device gives an upper limit alarm; when the liquid level rises to the upper water level line, the intermediate relay is disconnected, and the diaphragm pump 8 stops; when the liquid level drops to the lower waterline, the intermediate relay is closed, and the diaphragm pump 8 is started; when the liquid level drops to the lower early warning line, the intermediate relay is closed, and the alarm device gives an alarm at the lower limit. The normal operation of the detection and alarm functions of the water level can be realized in a reciprocating mode, on one hand, the liquid level can be prevented from being too high, economic cost waste caused by overflow of a lithium bromide water solution can be prevented, and on the other hand, the waste of the idle running of the diaphragm pump to electric energy can also be prevented.
In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (10)
1. A lithium bromide water solution circulating and filtering system is characterized in that: the circulation filtration system includes: the device comprises a filter tank (1), a control box (2), a first one-way valve (3), a sampling valve (4), a water container (5), a liquid level transmitter (6), a support frame (7), a diaphragm pump (8), a second one-way valve (9), a wave-proof tube (10), a cable (11), a cable fixing frame (12), a junction box (13), an alternating current contactor (14) and an alarm control system (15); wherein, the control box (2) is arranged at one side of the filter tank (1), the lithium bromide water solution enters the diaphragm pump (8) from the water container (5) through the first pipeline (A), then enters the filter tank (1) through the second one-way valve (9), the water solution filtered by the filter tank (1) returns to the water container (5) through the second pipeline (B), the first one-way valve (3) is arranged in the second pipeline (B), one side of the water container (5) is provided with the third pipeline (C), the third pipeline (C) is provided with the sampling valve (4), the wave-proof tube (10) is fixed in the water container (5) through the supporting frame (7), the liquid level transmitter (6) is arranged in the wave-proof tube (10), the upper end of the liquid level transmitter (6) is sequentially connected with the junction box (13), the alarm control system (15) and one end of the AC contactor (14) through the cable (11), the other end of the AC contactor (14) is connected with the diaphragm pump (8), and the cable (11) is installed on a cable fixing frame (12) so as to be vertically positioned above the liquid level transmitter (6).
2. The lithium bromide water circulating and filtering system as claimed in claim 1, wherein: PPR pipes are selected as the first pipeline (A), the second pipeline (B) and the third pipeline (C).
3. The lithium bromide water circulating and filtering system as claimed in claim 1, wherein: cobblestones (1-1), coarse quartz sand (1-2) and fine quartz sand (1-3) are laid in the filtering tank (1) from top to bottom in sequence.
4. The lithium bromide water circulating and filtering system as claimed in claim 1, wherein: the filter tank (1) is provided with an automatic back washing device, and the automatic back washing device is intelligently controlled by the control box (2).
5. The lithium bromide water circulating and filtering system as claimed in claim 4, wherein: when the filter tank (1) is in normal filtering operation, a lithium bromide water solution enters from an upper inlet of the filter tank (1) and is discharged from a lower outlet of the filter tank (1), when the automatic backwashing device is in normal flushing operation, the lithium bromide water solution enters from the lower outlet of the filter tank (1) and is discharged from an upper inlet of the filter tank (1), and then backwashing sewage is discharged through a blowdown valve.
6. The lithium bromide water circulating and filtering system as claimed in claim 1, wherein: the filtering tank (1) is made of polyethylene.
7. The lithium bromide water circulating and filtering system as claimed in claim 1, wherein: the diaphragm pump (8) is a pneumatic diaphragm pump.
8. The lithium bromide water circulating and filtering system as claimed in claim 1, wherein: the number of the support frames (7) is 2, and the support frames are respectively arranged at the upper part and the lower part of the wave-proof pipe (10).
9. The lithium bromide water circulating and filtering system as claimed in claim 1, wherein: the wave-proof tube (10) is made of 304 stainless steel tubes, and a plurality of small holes are formed in the inner wall of the wave-proof tube (10) at different heights.
10. The lithium bromide water circulating and filtering system as claimed in claim 1, wherein: the alarm control system (15) is provided with an intermediate relay and an alarm device, when the liquid level rises to an upper early warning line, the intermediate relay is closed, and the alarm device gives an upper limit alarm; when the liquid level rises to the upper water level line, the intermediate relay is disconnected, and the diaphragm pump (8) stops; when the liquid level drops to a lower water line, the intermediate relay is closed, and the diaphragm pump (8) is started; when the liquid level drops to the lower early warning line, the intermediate relay is closed, and the alarm device gives an alarm at the lower limit.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920479229.6U CN210159254U (en) | 2019-04-10 | 2019-04-10 | Lithium bromide aqueous solution circulating and filtering system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920479229.6U CN210159254U (en) | 2019-04-10 | 2019-04-10 | Lithium bromide aqueous solution circulating and filtering system |
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| CN210159254U true CN210159254U (en) | 2020-03-20 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112859586A (en) * | 2021-01-12 | 2021-05-28 | 东北大学 | Diaphragm pump system safe operation guaranteeing method based on fuzzy PID control |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112859586A (en) * | 2021-01-12 | 2021-05-28 | 东北大学 | Diaphragm pump system safe operation guaranteeing method based on fuzzy PID control |
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