CN217780782U - Complete control unit for pretreatment device of desalted water station - Google Patents
Complete control unit for pretreatment device of desalted water station Download PDFInfo
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- CN217780782U CN217780782U CN202221661433.8U CN202221661433U CN217780782U CN 217780782 U CN217780782 U CN 217780782U CN 202221661433 U CN202221661433 U CN 202221661433U CN 217780782 U CN217780782 U CN 217780782U
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 157
- 239000007788 liquid Substances 0.000 claims abstract description 10
- 238000007781 pre-processing Methods 0.000 claims abstract description 5
- 238000010612 desalination reaction Methods 0.000 claims abstract description 4
- 238000003466 welding Methods 0.000 claims description 8
- 238000004140 cleaning Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 4
- 239000002609 medium Substances 0.000 description 7
- 230000005540 biological transmission Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000001223 reverse osmosis Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000012736 aqueous medium Substances 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000011033 desalting Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/124—Water desalination
- Y02A20/131—Reverse-osmosis
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- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
The utility model discloses a desalination water station preprocessing device complete set control unit, which comprises a primary pipe network circulating system and a secondary pipe network circulating system which are respectively connected to a complete set intelligent control cabinet, wherein the primary pipe network circulating system comprises a primary water supply pipeline and a primary water return pipeline; the secondary pipe network circulating system comprises a secondary water supply pipeline and a secondary water return pipeline, and one end of the secondary water supply pipeline and one end of the secondary water return pipeline are respectively connected to an inlet pipe and an outlet pipe of the buffer water tank; the bottom of the buffer water tank is respectively provided with an explosion-proof self-control constant temperature electric heater and an explosion-proof self-control temperature sensor, and the side wall of the buffer water tank is respectively provided with a magnetic turning plate liquid level meter and a liquid level transmitter; the utility model discloses a structure that intelligence control system and teletransmission instrument combined had both realized satisfying the function of the multiplex condition operating condition of different pressure and temperature, had realized full-automatic unmanned on duty's teletransmission function again, had reached energy reutilization's purpose simultaneously, had played energy-concerving and environment-protective effect.
Description
Technical Field
The utility model relates to a water treatment facilities technical field, specific demineralized water station preprocessing device complete set control unit that says so.
Background
At present, in the production process of large chemical plants, thermal power plants and thermal power plants in China, demineralized water plays a role in transferring energy or cooling media, and in the long-term use practice process, people recognize that the demineralized water in the chemical plants, the thermal power plants and other systems can operate according to equipment under the required working condition, and other equipment can operate safely, reliably and economically and stably by improving the temperature of the medium (demineralized water). The improvement in advance of the inlet medium (demineralized water) temperature that the buffer tank preliminary treatment stage mainly satisfied reverse osmosis facility guarantees the constant temperature that this system can be stable for a long time keeps certain medium (demineralized water), and buffer tank is used for the buffering to collect the demineralized water, constantly collects the replenishment and satisfies the required water consumption of operating mode, and buffer tank's effect is that to let medium demineralized water maintain within certain temperature range to do benefit to the stability of guaranteeing reverse osmosis system and going out water. The heat exchange elements (the detachable heat exchanger and the all-welded heat exchanger) are used for heat transfer exchange through a water pump circulating system, so that stable control of pressure, temperature and flow of secondary network effluent media is realized, and automatic control is completed by a set of intelligent control cabinet system. The traditional complete control unit for desalting water pretreatment mostly takes manual operation control of pressure and temperature as a main part, and full-automatic unattended operation of equipment cannot be realized. The patent provides a demineralized water station preprocessing device complete set control unit, through automatic start-stop control once side heat transfer element front end electric ball valve carry out the heat transfer element and switch, satisfy under the different operating modes secondary side play required pressure of aqueous medium, temperature and flow, through the required pressure of complete set intelligent control cabinet control, the temperature and the flow carry out the pressure of automatic control secondary side export medium, the full-automatic unmanned on duty reliable and stable operation of complete set unit is realized to temperature and flow, whole journey need not artifical manually operation participation control, the homoenergetic sets up required pressure according to actual parameter, temperature and flow automatic operation.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a demineralized water station preprocessing device complete set control unit through the structure that intelligent control system and teletransmission instrument combine, has realized under the multiplex condition full-automatic unmanned on duty's function, has solved traditional unit and has received the restriction of pressure and temperature manual control, and can not realize the shortcoming of full-automatic unmanned on duty function.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a complete set of control unit of a pre-treatment device of a desalted water station comprises a primary pipe network circulation system and a secondary pipe network circulation system which are respectively connected to a complete set of intelligent control cabinet, wherein the primary pipe network circulation system comprises a primary water supply pipe and a primary water return pipe, the primary water supply pipe comprises a first water supply pipe and a second water supply pipe which are connected in parallel, the first water supply pipe and the second water supply pipe are respectively connected to primary side supply pipes of a detachable heat exchanger and a full-welding heat exchanger, the primary water return pipe comprises a first water return pipe and a second water return pipe which are connected in parallel, and the first water return pipe and the second water return pipe are respectively connected to primary side return pipes of the detachable heat exchanger and the full-welding heat exchanger; the secondary pipe network circulating system comprises a secondary water supply pipeline and a secondary water return pipeline, one end of the secondary water supply pipeline is connected to an inlet pipe of the buffer water tank, and the other end of the secondary water supply pipeline is respectively connected to secondary side supply outlet pipes of the detachable heat exchanger and the all-welded heat exchanger; one end of the secondary water return pipeline is connected to an outlet pipe of the buffer water tank, and the other end of the secondary water return pipeline is respectively connected to a secondary return side inlet pipe of the detachable heat exchanger and a secondary return side inlet pipe of the full-welding heat exchanger; the bottom of the buffer water tank is respectively provided with an explosion-proof self-control constant temperature electric heater and an explosion-proof self-control temperature sensor, the side wall of the buffer water tank is respectively provided with a magnetic turning plate liquid level meter and a liquid level transmitter, and the top of the buffer water tank is respectively provided with an overflow port, a water replenishing port and an overhauling and cleaning hole.
Preferably, a primary supply side temperature sensor, a primary supply side pressure sensor and a first electric ball valve are respectively arranged on the first water supply pipe; a third electric ball valve is arranged on the second water supply pipe.
Preferably, a primary return side temperature sensor, a primary return side pressure sensor and a second electric ball valve are respectively arranged on the first return water pipe; a fourth electric ball valve is arranged on the second water return pipe.
Preferably, an exhaust valve, a fifth electric ball valve, a seventh electric ball valve, a secondary supply side temperature sensor, a secondary supply side pressure sensor, a pressure gauge and a thermometer are sequentially arranged on the secondary water supply pipeline.
Preferably, the secondary return side pipeline is provided with a first circulating water pump, a second circulating water pump, a first check valve, a second check valve, a sixth electric ball valve, an eighth electric ball valve, a secondary return side temperature sensor and a secondary return side pressure sensor.
Preferably, a controller CPU, a frequency converter, a touch screen and an electric control element are arranged in the complete set of intelligent control cabinet.
The utility model discloses a use does:
the method comprises the steps that firstly, a secondary side temperature sensor is used for collecting an actual temperature value of a secondary side outlet, PID comparison operation is carried out on the actual temperature value and a set value on a touch screen in a complete set of intelligent control cabinet, and when the actual temperature display value of the secondary side outlet is larger than or smaller than the set value of the secondary side water supply temperature, a first electric ball valve, a second electric ball valve, a third electric ball valve and a fourth electric ball valve are automatically controlled to adjust the opening degree of a primary side, so that the temperature of the secondary side outlet is controlled, and the temperature in an outlet pipe network of a secondary water supply pipeline is ensured to be always kept in a constant temperature mode.
And secondly, detecting the pressure difference between the inlet and the outlet of the first circulating water pump and the second circulating water pump by using a first circulating water pump, a second circulating water pump, a secondary supply side pressure sensor, a secondary return side pressure sensor and a pressure sensor measuring point, adjusting the rotating speed of the circulating water pump in a secondary side circulating system, and realizing the control of increasing and decreasing the rotating speed of the circulating water pump through variable frequency speed regulation, thereby ensuring that the secondary supply side pressure is in a constant pressure state and realizing that the outlet pressure and the flow of the secondary side are in a constant state.
The temperature of a medium (demineralized water) in the water tank is preheated by utilizing the buffer water tank, the explosion-proof self-control constant-temperature electric heater at the bottom of the buffer water tank and the explosion-proof self-control temperature sensor, so that the temperature in the buffer water tank is ensured to be in a constant temperature mode.
The utility model has the advantages that:
1. the utility model realizes the function of meeting the multi-working condition of different pressures and temperatures by the combination structure of the intelligent control system and the remote transmission instrument;
2. the utility model realizes the full-automatic unattended remote transmission function through the structure of combining the intelligent control system and the remote transmission instrument;
3. the utility model discloses in through the structure that intelligent control system and teletransmission instrument combine, realized energy reutilization's purpose, played energy-concerving and environment-protective effect.
Drawings
FIG. 1 is a schematic diagram of a unit control system of the present invention;
in the figure: 1. a first supply side pressure sensor, 2, a first supply side pressure sensor, 3, a first return side temperature sensor, 4, a first return side pressure sensor, 5, a first electric ball valve, 6, a second electric ball valve, 7, a third electric ball valve, 8, a fourth electric ball valve, 9, a detachable heat exchanger, 10, a full-welding heat exchanger, 11, an emptying valve, 12, a blow-down valve, 13, a fifth electric ball valve, 14, a sixth electric ball valve, 15 a seventh electric ball valve, 16, an eighth electric ball valve, 17, a second supply side temperature sensor, 18, a second supply side pressure sensor, 19, a pressure gauge, 20 and a thermometer, 21, a secondary return side temperature sensor, 22, a secondary return side pressure sensor, 23, a ninth electric ball valve, 24, a first check valve, 25, a tenth electric ball valve, 26, a first circulating water pump, 27, a first filter, 28, an eleventh electric ball valve, 29, an explosion-proof self-control constant temperature electric heater, 30, an explosion-proof self-control temperature sensor, 31, a magnetic turning plate liquid level meter, 32, a liquid level transmitter, 33, a buffer water tank, 34, a complete set intelligent control cabinet, 35, a twelfth electric ball valve, 36, a second check valve, 37, a second circulating water pump, 38, a second filter, 39 and a thirteenth electric ball valve.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1, a desalination water station pretreatment device complete set control unit comprises a first-stage pipe network circulation system and a second-stage pipe network circulation system which are respectively connected to a complete set intelligent control cabinet 34, wherein the first-stage pipe network circulation system comprises a primary water supply pipe and a primary water return pipe, the primary water supply pipe comprises a first water supply pipe and a second water supply pipe which are connected in parallel, the first water supply pipe and the second water supply pipe are respectively connected to primary side supply pipes of a detachable heat exchanger 9 and a fully welded heat exchanger 10, the primary water return pipe comprises a first water return pipe and a second water return pipe which are connected in parallel, and the first water return pipe and the second water return pipe are respectively connected to primary side return pipes of the detachable heat exchanger 9 and the fully welded heat exchanger 10; the secondary pipe network circulating system comprises a secondary water supply pipeline and a secondary water return pipeline, one end of the secondary water supply pipeline is connected to an inlet pipe of the buffer water tank 33, and the other end of the secondary water supply pipeline is respectively connected to secondary side supply outlet pipes of the detachable heat exchanger 9 and the full-welded heat exchanger 10; one end of the secondary water return pipeline is connected to an outlet pipe of the buffer water tank 33, and the other end of the secondary water return pipeline is respectively connected to a secondary water return side inlet pipe of the detachable heat exchanger 9 and a secondary water return side inlet pipe of the full-welding heat exchanger 10; the bottom of the buffer water tank 33 is respectively provided with an explosion-proof self-control constant temperature electric heater 29 and an explosion-proof self-control temperature sensor 30, the side wall is respectively provided with a magnetic turning plate liquid level meter 31 and a liquid level transmitter 32, and the top of the buffer water tank 33 is respectively provided with an overflow port, a water replenishing port and an overhauling and cleaning hole; the complete set of intelligent control cabinet 34 is internally provided with a controller CPU, a frequency converter, a touch screen and an electric control element.
A primary supply side temperature sensor 1, a primary supply side pressure sensor 2 and a first electric ball valve 5 are respectively arranged on the first water supply pipe; a third electric ball valve 7 is arranged on the second water supply pipe; a primary return side temperature sensor 3, a primary return side pressure sensor 4 and a second electric ball valve 6 are respectively arranged on the first return pipe; a fourth electric ball valve 8 is arranged on the second water return pipe.
An exhaust valve 11, a fifth electric ball valve 13, a seventh electric ball valve 15, a secondary supply side temperature sensor 17, a secondary supply side pressure sensor 18, a pressure gauge 19 and a thermometer 20 are sequentially arranged on the secondary water supply pipeline; the secondary water return line is provided with a first circulation water pump 26, a second circulation water pump 37, a first check valve 24, a second check valve 36, a sixth electric ball valve 14, an eighth electric ball valve 16, a secondary return side temperature sensor 21, and a secondary return side pressure sensor 22, respectively.
The utility model discloses a working process does:
firstly, a secondary side temperature sensor 17 is used for collecting a temperature actual value of a secondary side outlet, the temperature actual value and a set value on a touch screen in a complete set of intelligent control cabinet 34 are subjected to PID comparison operation, and when the temperature actual display value of the secondary side outlet is greater than or less than a secondary side water supply temperature set value, a first electric ball valve 5, a second electric ball valve 6, a third electric ball valve 7 and a fourth electric ball valve 8 automatically control and adjust the opening degree of a primary side, so that the temperature of the secondary side outlet is controlled, and the temperature in an outlet pipe network of a secondary water supply pipeline is ensured to be always kept in a constant temperature mode.
Secondly, the pressure difference between the inlet and the outlet of the first circulating water pump 26 and the second circulating water pump 37 is detected by using a first circulating water pump 26, a second circulating water pump 37, a secondary supply side pressure sensor 18, a secondary return side pressure sensor 22 and a pressure sensor measuring point, the rotating speed of the circulating water pump in the secondary side circulating system is adjusted, and the rotating speed increasing and decreasing variable frequency speed regulation control of the circulating water pump is realized, so that the secondary supply side pressure is ensured to be in a constant pressure state, and the outlet pressure and the flow of the secondary side are ensured to be in a constant state.
The temperature of a medium (demineralized water) in the buffer water tank is preheated by using the buffer water tank 33, the explosion-proof self-control constant-temperature electric heater 29 at the bottom of the buffer water tank and the explosion-proof self-control temperature sensor 30, so that the temperature in the buffer water tank 33 is ensured to be in a constant temperature mode.
The utility model realizes the function of meeting the multi-working condition of different pressures and temperatures by the combined structure of the intelligent control system and the remote transmission instrument; through the structure that intelligence control system and teletransmission instrument combine, realized full-automatic unmanned on duty's teletransmission function, realized the purpose of energy reutilization simultaneously, played the effect of energy-concerving and environment-protective.
The above are merely preferred examples of the present invention. It should be noted that other equivalent variations and modifications can be made by those skilled in the art based on the technical teaching provided by the present invention, as the common general knowledge in the mechanical field, and the protection scope of the present invention should be considered.
Claims (6)
1. The utility model provides a demineralized water station preprocessing device complete set control unit which characterized in that: the system comprises a primary pipe network circulating system and a secondary pipe network circulating system which are respectively connected to a complete set of intelligent control cabinet (34), wherein the primary pipe network circulating system comprises a primary water supply pipe and a primary water return pipe, the primary water supply pipe comprises a first water supply pipe and a second water supply pipe which are connected in parallel, the first water supply pipe and the second water supply pipe are respectively connected to a primary side supply pipe of a detachable heat exchanger (9) and a primary side supply pipe of a full-welding heat exchanger (10), the primary water return pipe comprises a first water return pipe and a second water return pipe which are connected in parallel, and the first water return pipe and the second water return pipe are respectively connected to the primary side supply pipe of the detachable heat exchanger (9) and the primary side return pipe of the full-welding heat exchanger (10); the secondary pipe network circulating system comprises a secondary water supply pipeline and a secondary water return pipeline, one end of the secondary water supply pipeline is connected to an inlet pipe of the buffer water tank (33), and the other end of the secondary water supply pipeline is respectively connected to a secondary side supply outlet pipe of the detachable heat exchanger (9) and a secondary side supply outlet pipe of the all-welded heat exchanger (10); one end of the secondary water return pipeline is connected to an outlet pipe of the buffer water tank (33), and the other end of the secondary water return pipeline is respectively connected to a secondary water return side inlet pipe of the detachable heat exchanger (9) and a secondary water return side inlet pipe of the full-welding heat exchanger (10); the bottom of the buffer water tank (33) is respectively provided with an explosion-proof self-control constant temperature electric heater (29) and an explosion-proof self-control temperature sensor (30), the side wall of the buffer water tank is respectively provided with a magnetic turning plate liquid level meter (31) and a liquid level transmitter (32), and the top of the buffer water tank (33) is respectively provided with an overflow port, a water replenishing port and an overhauling and cleaning hole.
2. The desalination station pretreatment device complete control unit of claim 1, characterized in that: a primary supply side temperature sensor (1), a primary supply side pressure sensor (2) and a first electric ball valve (5) are respectively arranged on the first water supply pipe; a third electric ball valve (7) is arranged on the second water supply pipe.
3. The control unit set for the pretreatment device of the desalted water station as set forth in claim 1 or 2, wherein: a primary return side temperature sensor (3), a primary return side pressure sensor (4) and a second electric ball valve (6) are respectively arranged on the first return pipe; a fourth electric ball valve (8) is arranged on the second water return pipe.
4. The desalination station pretreatment device complete set control unit as claimed in claim 3, characterized in that: and an exhaust valve (11), a fifth electric ball valve (13), a seventh electric ball valve (15), a secondary side supply temperature sensor (17), a secondary side supply pressure sensor (18), a pressure gauge (19) and a thermometer (20) are sequentially arranged on the secondary water supply pipeline.
5. The control unit set for the pretreatment device set of the desalted water station as set forth in claim 4, wherein: and a first circulating water pump (26), a second circulating water pump (37), a first check valve (24), a second check valve (36), a sixth electric ball valve (14), an eighth electric ball valve (16), a secondary return side temperature sensor (21) and a secondary return side pressure sensor (22) are respectively arranged on the secondary return side pipeline.
6. The control unit set for the pretreatment device set of the desalted water station as set forth in claim 5, wherein: and a controller CPU, a frequency converter, a touch screen and an electric control element are arranged in the set of intelligent control cabinet (34).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221661433.8U CN217780782U (en) | 2022-06-30 | 2022-06-30 | Complete control unit for pretreatment device of desalted water station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221661433.8U CN217780782U (en) | 2022-06-30 | 2022-06-30 | Complete control unit for pretreatment device of desalted water station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217780782U true CN217780782U (en) | 2022-11-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221661433.8U Active CN217780782U (en) | 2022-06-30 | 2022-06-30 | Complete control unit for pretreatment device of desalted water station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217780782U (en) |
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2022
- 2022-06-30 CN CN202221661433.8U patent/CN217780782U/en active Active
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