CN213453598U - Steam condensate recovery device - Google Patents

Abstract

The utility model relates to a steam condensate recovery unit, including first water tank, second water tank, circulating pump, moisturizing pump, steam power recovery water pump the second water tank sets up the recycled water interface of intaking, and recycled water access interface connects steam power recovery water pump, and steam power recovery water pump links to each other with drawing a jar lime set pipeline, and first water tank provides the circulating water for gas heater, and first water tank boiler water moisturizing interface connection boiler water moisturizing pipeline, boiler water moisturizing pipeline divide into two strands, and one is sent to boundary area boiler plant, and another strand is recovery boiler water pipeline, and recovery boiler water pipeline connects second water tank and retrieves water outlet water interface. The utility model discloses a steam power recovery water pump will draw jar comdenstion water and all retrieve for the boiler moisturizing, both reduced the waste water discharge, reduced the treatment of waste water expense, can retrieve the waste heat again, energy saving and consumption reduction effect is showing.

Description

Steam condensate recovery device

Technical Field

The utility model belongs to the technical field of energy saving and consumption reduction, a recovery plant is related to, especially a steam condensate water recovery unit.

Background

In the production of pharmaceutical products, which generate a lot of heat and therefore need to be recovered, as shown in fig. 1, the drinking water port 3 at the top of the first water tank 5 is connected to the drinking water line. The bottom of the first water tank is provided with a circulating water pump P1 and a water replenishing pump P2, water in the first water tank exchanges heat with flue gas through the flue gas heat exchanger 1 through the circulating water pump and returns to the first water tank to recover heat in the flue gas, and the water replenishing pump is used for replenishing water for a boiler.

The drinking water of about 55m3/d is used in the boiler room on average every day, 90% of steam generated by the gas boiler is used for the procedures of extraction, concentration and the like in an extraction workshop, and the steam is condensed into high-temperature condensed water (about 80 ℃) in the extraction and concentration processes, and the condensed water generated by single effect, double effect and spherical type is directly discharged into a sewage pipeline. Thereby not only increasing the pressure and cost of sewage treatment, but also wasting water resources and high-temperature waste heat.

Disclosure of Invention

An object of the utility model is to overcome prior art's weak point, provide one kind and can enough reduce wastewater discharge, can be with waste heat recovery's steam condensate recovery unit again.

The utility model provides a technical scheme that technical problem adopted is:

a steam condensate recovery device comprises a first water tank, a second water tank, a circulating pump, a water replenishing pump and a steam power recovery water pump, wherein the second water tank is provided with a recovered water inlet interface, a recovered water inlet interface is connected with the steam power recovery water pump, the steam power recovery water pump is connected with a condensate pipeline of an extraction tank, a first circulating water return interface and a drinking water interface are arranged on the upper part of the first water tank, a second circulating water outlet interface, a second circulating water return interface and a boiler water replenishing interface are arranged on the lower part of the first water tank, the circulating water outlet interface is connected with a circulating water pump inlet through a pipeline, the outlet of the circulating water pump is divided into two parts, one part is connected to the first end of an electric three-way valve, the other part is connected to the inlet of a flue gas heat exchanger, the outlet of the flue gas heat exchanger is connected to, boiler water moisturizing pipeline divide into two strands, and the moisturizing pump entry is connected to one strand, and the moisturizing pump export is sent to boundary area boiler plant, and another strand is for retrieving boiler water pipeline, retrieves boiler water pipeline connection second water tank and retrieves water outlet port, the second end of the circulation return water second interface connection electric three-way valve of first water tank, the moisturizing interface of second water tank is connected to electric three-way valve's third end.

And the recycling boiler water pipeline is connected with the outlet of a dosing pump through a pipeline, and the inlet of the dosing pump is connected with a dosing tank.

And, circulating pump and moisturizing pump are two, and one is opened one and is equipped with.

And an on-line PH monitoring meter is arranged on the water pipeline of the recovery boiler.

And a boiler water sampling port is arranged on the recovery boiler water pipeline.

And a recovered water flow meter is arranged on a pipeline between the recovered water inlet interface of the second water tank and the steam power recovery water pump.

And a recovered water sampling port is arranged at the bottom of the second water tank.

And, a sewage line is installed at the bottom of the second water tank.

Moreover, a temperature gauge and a liquid level gauge are provided on the second tank.

And, the level gauge is an online level gauge, and the online level gauge controls the electric three-way valve.

The utility model has the advantages that:

1. the utility model discloses a steam power recovery water pump will draw the whole recoveries of jar comdenstion water for the boiler moisturizing, has both reduced the waste water discharge, has reduced the expense of handling waste water, can retrieve the waste heat again, and energy saving and consumption reduction effect is showing.

2. The utility model discloses an online PH monitoring table automatic control adds the medicine pump and adds the dose, makes the PH control in qualified scope, has guaranteed the pH valve index of boiler moisturizing.

3. The utility model discloses install electronic three-way valve between first water tank and second water tank, can adjust the liquid level of two water tanks, guaranteed two water tank liquid level balance, and then guaranteed that the boiler moisturizing is stable.

Drawings

FIG. 1 is a schematic view of the prior art.

Fig. 2 is a schematic view of the process flow of the embodiment of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments, which are illustrative, not restrictive, and the scope of the invention should not be limited thereto.

A steam condensate water recovery device comprises a first water tank 5, a second water tank 11, a circulating pump P1, a water replenishing pump P2, a steam power recovery water pump 17, a chemical feeding pump P3, a chemical feeding box 16 and an electric three-way valve HV1, wherein a first circulating water return port 2 and a drinking water port 3 are arranged on the upper portion of the first water tank, a second circulating water return port 4, a second circulating water return port 8 and a boiler water replenishing port 6 are arranged on the lower portion of the first water tank, the circulating water outlet port 4 is connected with an inlet of the circulating water pump P1 through a pipeline, an outlet of the circulating water pump P1 is divided into two parts, one part is connected to a first end of the electric three-way valve 389HV 5, the other part is connected to an inlet of a flue gas heat exchanger 1, an outlet of the flue gas heat exchanger is connected to the first circulating water return port 2 on the upper portion of the first water tank 5, the boiler water replenishing port 6, moisturizing pump export is sent to boundary district boiler plant, and another share is recovery boiler water pipeline 14, and recovery boiler water pipeline connects second water tank bottom and retrieves water outlet port 12 recovery boiler water pipeline 14's both ends are installed stop valve 7 respectively, through the export of pipe connection dosing pump P3 on recovery boiler water pipeline 14, dosing pump access connection dosing tank 16, the installation stop valve on the pipeline between dosing pump and dosing tank, the second end of electric three-way valve HV1 is connected to the circulation return water second interface 8 of first water tank, the moisturizing interface 15 of second water tank is connected to electric three-way valve's third end.

The top of the second water tank is provided with a recycled water inlet interface 10, a recycled water inlet interface is connected with a steam power recovery water pump 17, and the top of the steam power recovery water pump is connected with a condensate pipeline of an extraction tank and a single-double-effect and spherical condensate pipeline for recovering condensate.

Stop valves are arranged on three pipelines of the electric three-way valve HV1, and an electric three-way valve bypass valve HV2 is arranged in parallel and used for overhauling the electric three-way valve.

The circulating pump and the water replenishing pump are two, one is opened and the other is prepared, and stop valves are respectively arranged on the front pipeline and the rear pipeline of the pump and are used for overhauling.

An online pH monitoring meter AG1 is arranged on the water pipeline 14 of the recovery boiler, and the online pH monitoring meter controls the dosing amount of the dosing pump.

A boiler water sampling port AP2 is provided on the recovery boiler water line 14 for detecting whether the PH of the dispensed water meets the requirements.

And a reclaimed water flow meter FG1 is arranged on a pipeline between the reclaimed water inlet interface 10 of the second water tank and the steam-powered reclaimed water pump 17 and is used for metering reclaimed water.

And a recovered water sampling port AP1 is arranged at the bottom of the second water tank and is used for detecting the pH value of the recovered water.

And a sewage discharge pipeline 13 is arranged at the bottom of the second water tank and is used for discharging when the drained liquid is overhauled or the recovered water is unqualified.

A temperature gauge TG1 and a level gauge LG1 are provided on the second water tank for monitoring the temperature and the liquid level in the second water tank.

The liquid level meter is an online liquid level meter which controls the electric three-way valve HV 1.

The drinking water port 3 is connected with a drinking water pipe, and provides a water source for the first water tank when the water in the first water tank is insufficient.

The utility model discloses retrieve the theory of use and the energy-conserving effect of condensate and do:

the technology uses steam as power through a recovery water pump, collects condensed water generated by an extraction tank, a single effect, a double effect and a ball type respectively, and pumps the condensed water into a second water tank through a pipeline. And collecting condensed water by using a second water tank to supplement water for the boiler. The temperature of the condensed water is about 80 ℃, the water inlet temperature of the boiler is increased, and the energy is saved. If the condensed water recovered by the second water tank is insufficient, the electric three-way valve is controlled by the remote transmission liquid level meter to pump the circulating water of the first water tank into the second water tank to replenish water for the second water tank, (the water level is automatically controlled, and the principle is to utilize steam condensation to recover water firstly). If a fault occurs, the original boiler water charging system and the newly added boiler water charging system can be switched mutually, and normal water charging of the boiler is guaranteed. And the water replenishing PH of the boiler is adjusted, and the dosage of the dosing pump is controlled by a PH on-line monitoring meter so that the PH is controlled within a qualified range.

The utility model discloses put into use, total evaporation capacity every day is 50 tons to the recovery volume 60% calculates, can retrieve the water yield every day and be 30 tons, retrieves 9000 tons every year, and every ton water cost adds 10 yuan of per ton of water treatment cost usefulness, can save water cost 9 ten thousand yuan every year.

The temperature of the recovered condensed water is calculated by 80 ℃, the average water supply temperature is 60 ℃ after drinking water passes through the energy saver before modification, the average water supply temperature is 90 ℃ after the modified condensed water passes through the energy saver, the quantity of heat which can be recovered every year is 1134000000kJ, equivalent to steam saving amount is 472500kg, namely 472.5 tons, the consumption of natural gas per ton of steam is calculated by 80 standard, equivalent to 37800 standard every year, and equivalent to gas saving cost is 9.94 ten thousand yuan. In conclusion, 18.94 ten thousand yuan can be saved each year through transformation.

The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, many variations and modifications can be made without departing from the inventive concept, and these are all within the scope of the present invention.

Claims (10)

1. The utility model provides a steam condensate water recovery unit which characterized in that: the device comprises a first water tank, a second water tank, a circulating pump, a water supplementing pump and a steam power recovery water pump, wherein the second water tank is provided with a recovered water inlet interface, a recovered water inlet interface is connected with the steam power recovery water pump, the steam power recovery water pump is connected with a condensate pipeline of an extraction tank, a first circulating water returning interface and a drinking water interface are arranged on the upper part of the first water tank, a second circulating water returning interface and a boiler water supplementing interface are arranged on the lower part of the first water tank, the circulating water outlet interface is connected with a circulating water pump inlet through a pipeline, the circulating water pump outlet is divided into two parts, one part is connected to the first end of an electric three-way valve, the other part is connected to the inlet of a flue gas heat exchanger, the outlet of the flue gas heat exchanger is connected to the first circulating water returning interface of the first water tank, the, one strand is connected the moisturizing pump entry, and the moisturizing pump is exported and is sent to boundary area boiler plant, and another strand is for retrieving boiler water line, retrieves boiler water line connection second water tank recycled water and goes out water interface, the second end of the circulation return water second interface connection electric three-way valve of first water tank, the moisturizing interface of second water tank is connected to electric three-way valve's third end.

2. The steam condensate recovery apparatus of claim 1, wherein: the recycling boiler water pipeline is connected with the outlet of a dosing pump through a pipeline, and the inlet of the dosing pump is connected with a dosing tank.

3. The steam condensate recovery apparatus of claim 1, wherein: the circulating pump and the water replenishing pump are two, one is opened and the other is prepared.

4. The steam condensate recovery apparatus of claim 1, wherein: and an online PH monitoring meter is arranged on the water pipeline of the recovery boiler.

5. The steam condensate recovery apparatus of claim 1, wherein: and a boiler water sampling port is arranged on the water pipeline of the recovery boiler.

6. The steam condensate recovery apparatus of claim 1, wherein: and a recovered water flow meter is arranged on a pipeline between the recovered water inlet interface of the second water tank and the steam power recovery water pump.

7. The steam condensate recovery apparatus of claim 1, wherein: and a recovered water sampling port is arranged at the bottom of the second water tank.

8. The steam condensate recovery apparatus of claim 1, wherein: and a sewage discharge pipeline is arranged at the bottom of the second water tank.

9. The steam condensate recovery apparatus of claim 1, wherein: a temperature meter and a liquid level meter are arranged on the second water tank.

10. The steam condensate recovery apparatus of claim 9, wherein: the liquid level meter is an online liquid level meter which controls the electric three-way valve.

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