CN216522387U - Vacuum dehydration device for inner pipeline of heat-conducting oil boiler - Google Patents
Vacuum dehydration device for inner pipeline of heat-conducting oil boiler Download PDFInfo
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- CN216522387U CN216522387U CN202121219584.3U CN202121219584U CN216522387U CN 216522387 U CN216522387 U CN 216522387U CN 202121219584 U CN202121219584 U CN 202121219584U CN 216522387 U CN216522387 U CN 216522387U
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Abstract
The utility model discloses a vacuum dehydration device for an inner pipeline of a heat conduction oil boiler, which comprises a vacuum exhaust pipe, a vacuum pipeline ball valve, a glass sight glass, a water ring vacuum pump, an outlet pipeline of a vacuum pump, a gas-liquid separation tank, a level gauge cock and a level gauge glass pipe, wherein the vacuum exhaust pipe is arranged on the inner pipeline of the heat conduction oil boiler; one end of the vacuum exhaust pipe is connected with a boiler heat-conducting oil outlet pipe, the other end of the vacuum exhaust pipe is connected with a vacuum pump inlet flange after being sequentially connected with a vacuum pipeline ball valve, a glass viewing mirror and a check valve, and the vacuum exhaust pipe is provided with a vacuum meter bent pipe and a vacuum meter; the inlet tube of water ring vacuum pump is equipped with the cooling water valve, vacuum pump export flange through vacuum pump export pipeline with the top of gas-liquid separation jar is connected, and this gas-liquid separation jar's top still is equipped with the blast pipe, and upper portion one side is equipped with the overflow pipe, and lower part one side is equipped with the drain pipe of taking the valve, and the side is equipped with level gauge cock and level gauge glass pipe. The utility model has simple structure, convenient installation and safe and efficient dehydration of the pipeline in the heat-conducting oil boiler.
Description
Technical Field
The utility model relates to the technical field of a cleaning device for an inner pipeline of a heat conduction oil boiler, in particular to a vacuum dehydration device for the inner pipeline of the heat conduction oil boiler.
Background
The inner pipeline of the existing heat conducting oil boiler generally adopts a structure of a plurality of layers of coil pipes or a plurality of groups of convection pipes. Boiler manufacturers generally use water for pressure test before products leave a factory, and then use compressed air to blow residual water in the furnace during the pressure test after the water pressure test, and the problems that: because the bent pipe in the heat-conducting oil boiler is easy to accumulate water, the residual water in the bent pipe is difficult to blow away due to the short circuit of the compressed air; after the new heat conduction oil boiler reaches a use unit, the compressed air is also generally adopted to continuously sweep accumulated water in the boiler pipe, and for the same reason, partial accumulated water at the bottom of the bent pipe cannot be completely blown. If the accumulated water in the pipeline in the heat transfer oil boiler is baked by hot air or hot flue gas independently under the condition of not vacuumizing, the pipeline elbow in the boiler has too much resistance and poor effect, and the heat transfer oil boiler is damaged due to high baking and dewatering temperature.
If the accumulated water in the furnace tube of the heat-conducting oil boiler is not cleaned, the heat-conducting oil is put into operation, the oil-water azeotropy of the heat-conducting oil is easy to happen in the processes of heating the heat-conducting oil boiler and dehydrating the heat-conducting oil, and safety and environmental protection accidents such as overhead tank oil spraying and the like happen.
The defects of the method for removing the accumulated water in the heat transfer oil boiler tube in the prior art are summarized as follows:
(1) the method is characterized in that accumulated water in a pipeline in a new heat-conducting oil boiler is blown by compressed air in the past, if the pipeline of the heat-conducting oil boiler is large, the flow of compressed air of an air compressor cannot be large, the pressure is high when blowing is started, some water can come out, the water cannot come out after the pressure is reduced, and the water removal effect is poor.
(2) If under the condition of not vacuumizing, the effect is not good when the hot air or hot flue gas is used for baking the accumulated water in the pipeline in the heat conduction oil boiler independently, because the baking temperature cannot be too high, the boiler can be damaged, and the pipeline elbow in the boiler is too many, the resistance is large, the steam discharge is not facilitated, and the effect is not good.
Therefore, the device for dehydrating the inner pipeline of the heat conduction oil boiler is developed, the problem that partial accumulated water at the bottom of the bent pipe of the inner pipeline of the heat conduction oil boiler cannot be completely blown in the prior art is effectively solved, and conditions are provided for safe operation of subsequent heating of the heat conduction oil during driving.
Disclosure of Invention
The utility model aims to provide a vacuum dehydration device for a pipeline in a heat conduction oil boiler, which has the advantages of simple structure, convenience in installation, and safe and efficient dehydration.
In order to achieve the purpose, the vacuum dehydration device for the inner pipeline of the heat conduction oil boiler comprises a vacuum exhaust pipe 1, a vacuum pipeline ball valve 4, a glass sight glass 5, a water ring vacuum pump 9, a vacuum pump outlet pipeline 11, a gas-liquid separation tank 13, a liquid level meter cock 16 and a liquid level meter glass pipe 17; one end of the vacuum exhaust pipe 1 is connected with a boiler heat conducting oil outlet pipe, the other end of the vacuum exhaust pipe is connected with a vacuum pump inlet flange 7 after being sequentially connected with a vacuum pipeline ball valve 4, a glass viewing mirror 5 and a check valve 6, and the vacuum exhaust pipe 1 is provided with a vacuum meter bent pipe 2 and a vacuum meter 3; the inlet tube of water ring vacuum pump 9 is equipped with cooling water valve 8, vacuum pump outlet flange 10 through vacuum pump outlet pipe way 11 with gas-liquid separation jar 13's top is connected, this gas-liquid separation jar 13's top still is equipped with blast pipe 12, and upper portion one side is equipped with overflow pipe 14, and lower part one side is equipped with the drain pipe 15 of taking the valve, and the side is equipped with level gauge cock 16 and level gauge glass pipe 17.
The vacuum dehydration device for the inner pipeline of the heat conduction oil boiler has the following technical characteristics and beneficial effects:
(1) the device has simple structure and convenient installation. No special requirements are made on the model and specification of the water ring vacuum pump, and the power of the general motor is only 5.5KW or 7.5 KW.
(2) Under the vacuum condition, the boiling point of water in the furnace pipe of the heat-conducting oil boiler is reduced, and the water is easy to evaporate and is pumped away by the vacuum pump.
(3) Because the total amount of accumulated water in the boiler pipe of the heat-conducting oil boiler is limited, the heat of steam evaporated at the baking temperature slightly higher than 100 ℃ is less, the water ring vacuum pump can be directly cooled by tap water or normal-temperature circulating water, and water discharged by the water ring vacuum pump can be directly discharged and can also be returned to production.
(4) The device is tried, and the clean thorough that the intraductal ponding of conduction oil boiler was taken out has created the advantage for the input and use of new conduction oil boiler, has avoided because the pipeline ponding in the stove gets rid of the occurence of failure to cause the oil water azeotropy of conduction oil water to lead to the elevated tank oil spout.
Drawings
FIG. 1 is a schematic structural view of a vacuum dehydration device for a pipe in a heat transfer oil boiler of the present invention.
Reference numerals: the vacuum pump comprises a vacuum extraction pipe 1, a vacuum meter bent pipe 2, a vacuum meter 3, a vacuum pipeline ball valve 4, a glass sight glass 5, a check valve 6, a vacuum pump inlet flange 7, a cooling water valve 8, a water ring vacuum pump 9, a vacuum pump outlet flange 10, a vacuum pump outlet pipeline 11, an exhaust pipe 12, a gas-liquid separation tank 13, an overflow pipe 14, a drain pipe 15 with a valve, a liquid level meter cock 16 and a liquid level meter glass pipe 17.
Detailed Description
The vacuum dehydration device for the inner pipeline of the heat transfer oil boiler of the utility model is further explained in detail with reference to the attached drawings and the detailed implementation mode.
As shown in fig. 1, the vacuum dehydration device for the inner pipeline of the heat transfer oil boiler comprises a vacuum exhaust pipe 1, a vacuum pipeline ball valve 4, a glass viewing mirror 5, a water ring vacuum pump 9, a vacuum pump outlet pipeline 11, a gas-liquid separation tank 13, a liquid level meter cock 16 and a liquid level meter glass pipe 17; one end of the vacuum exhaust pipe 1 is connected with a boiler heat conducting oil outlet pipe, the other end of the vacuum exhaust pipe is connected with a vacuum pump inlet flange 7 after being sequentially connected with a vacuum pipeline ball valve 4, a glass viewing mirror 5 and a check valve 6, and the vacuum exhaust pipe 1 is provided with a vacuum meter bent pipe 2 and a vacuum meter 3; the inlet tube of water ring vacuum pump 9 is equipped with cooling water valve 8, vacuum pump outlet flange 10 through vacuum pump outlet pipe way 11 with gas-liquid separation jar 13's top is connected, this gas-liquid separation jar 13's top still is equipped with blast pipe 12, and upper portion one side is equipped with overflow pipe 14, and lower part one side is equipped with the drain pipe 15 of taking the valve, and the side is equipped with level gauge cock 16 and level gauge glass pipe 17.
The use and operation of the vacuum dehydration device for the inner pipeline of the heat conduction oil boiler are as follows:
after the new heat-conducting oil boiler is installed in place, and before the heat-conducting oil pipeline is installed, the new heat-conducting oil is added according to the figure 1The heat conducting oil outlet pipe of the boiler is connected with a vacuum exhaust pipe 1 of a DN65 steel pipe through a DN65 steel pipe; a heat conduction oil inlet pipe of the new heat conduction oil boiler is blocked by a blind plate; the hearth of the new heat-conducting oil boiler is connected with hot air at the temperature of 100-200 ℃ or smoke of other boilers for drying the boiler, so that the accumulated water in the boiler pipe of the new heat-conducting oil boiler is prevented from being baked by open fire; during dehydration, firstly, the DN65 vacuum pipeline ball valve 4 is checked and ensured to be closed, then the water ring vacuum pump DN20 cooling water valve 8 is opened to enable water to enter the water ring pump vacuum pump 9, after the water ring pump vacuum pump 9 is started, the vacuum pipeline ball valve 4 is opened, and the system starts to be vacuumized; along with the slow rise of the temperature of the hearth, the temperature of accumulated water in the pipeline in the heat conduction oil boiler also rises slowly, the accumulated water in the pipeline in the heat conduction oil boiler is easy to evaporate into steam in a vacuum state and is pumped out by the water ring vacuum pump 9 to enter
The gas-liquid separation tank 13 is characterized in that gas is discharged from a DN65 exhaust pipe 12, and water can be directly discharged or recycled from a drain pipe 15 with a valve by observing the water level condition through a glass pipe 17 of a liquid level meter; when the temperature of the flue gas outlet of the heat-conducting oil boiler is more than 100 ℃ and the vacuum table 3 of 0-minus 0.1Mpa on the vacuum pipeline reaches minus 0.06Mpa, observing the glass sight glass 5, and if water drops are not seen, indicating that accumulated water in the heat-conducting oil boiler pipe is basically not existed, stopping dehydration; when the dehydration is stopped, the vacuum pipeline ball valve 4 on the vacuum pipeline is firstly closed, the cooling water valve 8 is closed, then the vacuum pump 9 is stopped, and simultaneously the hot air or flue gas baking is stopped, so that the water of the water-proof ring vacuum pump 9 is poured back into the heat-conducting oil boiler tube.
Claims (1)
1. The utility model provides a pipeline vacuum dehydration device in conduction oil boiler stove which characterized by: the device comprises a vacuum extraction pipe (1), a vacuum pipeline ball valve (4), a glass sight glass (5), a water ring vacuum pump (9), a vacuum pump outlet pipeline (11), a gas-liquid separation tank (13), a liquid level meter cock (16) and a liquid level meter glass pipe (17); one end of the vacuum pumping pipe (1) is connected with a boiler heat-conducting oil outlet pipe, the other end of the vacuum pumping pipe is connected with a vacuum pump inlet flange (7) after being sequentially connected with a vacuum pipeline ball valve (4), a glass viewing mirror (5) and a check valve (6), and the vacuum pumping pipe (1) is provided with a vacuum meter bent pipe (2) and a vacuum meter (3); the inlet tube of water ring vacuum pump (9) is equipped with cooling water valve (8), vacuum pump outlet flange (10) through vacuum pump outlet pipe way (11) with the top of gas-liquid separation jar (13) is connected, and the top of this gas-liquid separation jar (13) still is equipped with blast pipe (12), and upper portion one side is equipped with overflow pipe (14), and lower part one side is equipped with drain pipe (15) of taking the valve, and the side is equipped with level gauge cock (16) and level gauge glass pipe (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121219584.3U CN216522387U (en) | 2021-06-02 | 2021-06-02 | Vacuum dehydration device for inner pipeline of heat-conducting oil boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121219584.3U CN216522387U (en) | 2021-06-02 | 2021-06-02 | Vacuum dehydration device for inner pipeline of heat-conducting oil boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216522387U true CN216522387U (en) | 2022-05-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121219584.3U Active CN216522387U (en) | 2021-06-02 | 2021-06-02 | Vacuum dehydration device for inner pipeline of heat-conducting oil boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216522387U (en) |
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2021
- 2021-06-02 CN CN202121219584.3U patent/CN216522387U/en active Active
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