Deaerator capable of recycling dead steam

Abstract

The utility model relates to a deaerator capable of recycling dead steam, and belongs to the field of boiler equipment. Comprising a deaerator and a demineralized water delivery pump, and further comprises a water jet injection pump, a collecting tank and a demineralized water recovery pump, and the bottom of the deaerator is connected with the demineralized water delivery pump; the top of the deaerator is connected with a water jet pump, an outlet of the water jet pump is connected with a collecting tank and a dead steam recycling line, and the bottom of the collecting tank is connected with a demineralized water recycling pump. The demineralized water is used as power, the pressure of the deaerator is kept stable by using the water jet injection pump, the power demineralized water in the injection pump is mixed with dead steam, heat and water entrained by the dead steam are recycled, the temperature of the demineralized water after the dead steam is recycled is increased, and the demineralized water enters the collecting tank; and after collection, the desalted water is conveyed into the device by a desalted water recovery pump to be recycled.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of oxygen-removing device of recoverable steam, belong to boiler equipment field. BACKGROUND

[0002] Current various oxygen-removing devices, steam is generally discharged to empty after deoxidation, one is that steam takes away more heat, there is energy waste, two is that on-site steam is empty, winter is easy to cause on-site icing, produces security risk. SUMMARY

[0003] According to the problem described in the background, the utility model solves the problem that:

[0004] Steam takes away more heat, there is energy waste, on-site steam is empty, winter is easy to cause on-site icing.

[0005] To achieve the above object, the utility model provides the following technical scheme:

[0006] An oxygen-removing device of recoverable steam, including oxygen-removing device and desalted water external sending pump, the bottom of the oxygen-removing device is connected with the desalted water external sending pump, further including water jet pump, collection tank and desalted water recovery pump;The top of the oxygen-removing device is connected with the water jet pump, the water jet pump outlet is connected with the collection tank and steam recovery line, and the bottom of the collection tank is connected with the desalted water recovery pump.

[0007] Preferably, the power source of the water jet pump is desalted water.

[0008] Preferably, the water jet pump outlet is connected with a gas-liquid separator, the top of the gas-liquid separator is connected with the steam recovery line, and the bottom of the gas-liquid separator is connected with the collection tank.

[0009] Oxygen-removing device uses low-pressure steam to deoxidize desalted water, and under normal process, steam is discharged through the top vent valve of the oxygen-removing device, which is a great waste, the utility model uses water jet pump to maintain the pressure of the oxygen-removing device stable with desalted water as power, and the power desalted water in the jet pump is mixed with steam to recover the heat and water carried by the steam, and the temperature of desalted water after recovering steam is increased, enters the collection tank, and is transported to the device for recycling by desalted water recovery pump after collection.

[0010] The utility model has the advantages that:

[0011] 1. Eliminate the on-site steam discharge of oxygen-removing device completely, realize on-site environmental protection upgrade;

[0012] 2. Effectively recover the heat energy in steam, reduce steam consumption.

[0013] 3. Effectively recover the water in steam, and annual desalted water can be recovered tons

[0014] 4. Stabilize the oxygen scavenger oxygen scavenger outlet pressure, improve the oxygen scavenging effect. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 The utility model is a schematic view

[0016] In the figure: 1 is oxygen scavenger; 2 is salt water delivery pump; 3 is collection tank; 4 is salt water recovery pump; 5 is water jet pump; 6 is steam recovery line; 7 is gas-liquid separator. DETAILED DESCRIPTION

[0017] Example 1

[0018] A kind of oxygen scavenger of recoverable steam, including oxygen scavenger 1 and salt water delivery pump 2, the bottom of the oxygen scavenger 1 is connected with salt water delivery pump 2, still include water jet pump 5, collection tank 3 and salt water recovery pump 4;The top of the oxygen scavenger 1 is connected with water jet pump 5, the outlet of the water jet pump 5 is connected with collection tank 3 and steam recovery line 6, the bottom of the collection tank 3 is connected with salt water recovery pump 4.

[0019] The power source of the water jet pump 5 is salt water.

[0020] The outlet of the water jet pump 5 is connected with gas-liquid separator 7, the top of the gas-liquid separator 7 is connected with steam recovery line 6, and the bottom is connected with collection tank 3.

[0021] The patent uses idle equipment, water jet pump 5, after careful calculation of heat exchange area and demonstration of feasibility, the steam of oxygen scavenger 1 is recovered and utilized, while ensuring the oxygen scavenging effect of oxygen scavenger 1, the water vapor in the steam is condensed into condensed water, the heat of the steam is effectively recovered, the water vapor emission loss is reduced, the condensed water is recovered, and a large amount of energy for heating boiler water is saved. The unorganized emission of white steam of oxygen scavenger 1 is completely eliminated, and it is economic and environmental protection.

Claims

1. A deaerator capable of recovering waste steam, comprising a deaerator (1) and a demineralized water external pump (2), wherein the bottom of the deaerator (1) is connected to the demineralized water external pump (2), characterized in that, It also includes a water jet pump (5), a collection tank (3) and a demineralized water recovery pump (4); the top of the deaerator (1) is connected to the water jet pump (5), the outlet of the water jet pump (5) is connected to the collection tank (3) and the waste steam recovery line (6), and the bottom of the collection tank (3) is connected to the demineralized water recovery pump (4).

2. The deaerator capable of recovering waste steam according to claim 1, characterized in that, The power source for the water jet pump (5) is demineralized water.

3. The deaerator capable of recovering waste steam according to claim 1, characterized in that, The outlet of the water jet pump (5) is connected to a gas-liquid separator (7), the top of which is connected to a waste steam recovery line (6), and the bottom of which is connected to a collection tank (3).

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