CN210623683U - Reversing valve structure of heat storage heating furnace - Google Patents
Reversing valve structure of heat storage heating furnace Download PDFInfo
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- CN210623683U CN210623683U CN201921551481.XU CN201921551481U CN210623683U CN 210623683 U CN210623683 U CN 210623683U CN 201921551481 U CN201921551481 U CN 201921551481U CN 210623683 U CN210623683 U CN 210623683U
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- air inlet
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- baffle
- inlet channel
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Abstract
The utility model discloses a heat accumulation heating furnace switching-over valve structure, which comprises a valve body, be equipped with air inlet and exhaust port and intercommunication burner port on the valve body, be equipped with inlet baffle between inherent air inlet of valve body and the intercommunication burner port, be equipped with the baffle of giving vent to anger between inherent exhaust port of valve body and the intercommunication burner port, still including protection inlet channel, protection inlet channel's one end is used for being linked together with the protection air supply, and the cavity that is linked together with intercommunication burner port in the valve body is linked together with the other end of protection inlet channel. When the baffle in the valve is closed, the nitrogen pipeline is cut off to open the valve, so that the space in the valve cavity forms positive pressure, hot gas in the furnace is prevented from entering the cavity, a baffle sealing ring is prevented from being damaged, and the valve is stable and reliable; the oxidation of the blank by the excess air generated by the protection of nitrogen is not increased; and the structure is simple, and the improvement cost is low.
Description
Technical Field
The utility model belongs to the technical field of the hot processing technique of steel and specifically relates to a heat accumulation heating furnace switching-over valve structure is related to.
Background
In the prior art, in production and application, particularly in a vehicle bottom type heat storage heating furnace for fixed-point heating, the temperature difference between adjacent heating sections can occur, and the adjustment of a rolling plate type is influenced.
In order to control the temperature difference between the heating sections, the temperature measuring point on the upper surface of each adjacent heating section or the average value of the temperature measuring points of the heating sections is taken as a reference value, when the temperature of the reference value between adjacent heating sections is more than 20 ℃, the gas, air and flue gas channels of the burner nozzles corresponding to the high-temperature areas are gradually stopped, when the temperature of the reference value between adjacent heating sections is more than 30 ℃, the gas, air and flue gas channels of the heating sections are completely closed, and when the difference value between adjacent temperatures is less than 20 ℃, the gas, air and flue gas channels are gradually opened, so that the temperature difference between adjacent heating sections is reduced, and.
As shown in fig. 2, in order to reduce excessive air oxidation burning loss after the burner is closed, after gas, air and flue gas are cut off simultaneously by the design, in order to ensure that under the condition of long-time closing, hot gas in the furnace enters a three-way cavity through a nozzle of a burner brick, and the hot gas can damage a high-temperature rubber ring of a three-way sealing baffle; in the gas three-way valve, under the condition that a three-way baffle is not tightly closed, air enters and is mixed with gas to cause harm.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art, the utility model aims to solve the technical problem that a heat accumulation heating furnace switching-over valve structure is provided to reach and prevent the interior steam of stove to get into the purpose of damaging the baffle sealing washer in the valve pocket.
In order to solve the technical problem, the utility model discloses the technical scheme who adopts is:
the reversing valve structure of the heat storage heating furnace comprises a valve body, wherein an air inlet, an exhaust port and a communicating burner port are formed in the valve body, an air inlet baffle is arranged between the air inlet and the communicating burner port in the valve body, an air outlet baffle is arranged between the exhaust port and the communicating burner port in the valve body, the reversing valve structure further comprises a protection air inlet channel, one end of the protection air inlet channel is used for being communicated with a protection air source, and a cavity communicated with the communicating burner port in the valve body is communicated with the other end of the protection air inlet channel.
Further, the protection air inlet channel is a nitrogen inlet channel.
And a stop valve is arranged on the protection air inlet channel.
A partition plate is arranged between the internal communicated burner nozzle and the air inlet and smoke outlet of the valve body, an air inlet baffle is arranged on the partition plate corresponding to the air inlet, an air outlet baffle is arranged on the partition plate corresponding to the smoke outlet, and the other end of the air inlet channel is arranged on one side of the two baffles.
The cut-off valve is an electromagnetic control valve.
The air inlet direction of the protective air inlet channel in the valve body is vertical to the opening direction of the baffle.
Compared with the prior art, the utility model, have following advantage:
the reversing valve of the heat storage heating furnace is reasonable in structural design, when a baffle in the valve is closed, the nitrogen pipeline is cut off to open the valve, so that positive pressure is formed in the space in a valve cavity, hot gas in the furnace is prevented from entering the cavity, a baffle sealing ring is prevented from being damaged, and the reversing valve is stable and reliable; the oxidation of the blank by the excess air generated by the protection of nitrogen is not increased; and the structure is simple, and the improvement cost is low.
Drawings
The contents of the description and the references in the drawings are briefly described as follows:
fig. 1 is a schematic structural view of the reversing valve of the present invention.
Fig. 2 is a schematic structural diagram of a conventional reversing valve.
In the figure:
1. the device comprises an air inlet, a smoke outlet 2, a burner port 3, an air inlet baffle 4, an air outlet baffle 5, a nitrogen inlet channel 6 and a stop valve 7.
Detailed Description
The following description of the embodiments of the present invention will be made in detail with reference to the accompanying drawings.
As shown in fig. 1, the reversing valve structure of the heat storage heating furnace comprises a valve body and a protective air inlet channel, wherein an air inlet 1, an exhaust port 2 and a communicating burner port 3 are arranged on the valve body, an air inlet baffle 4 is arranged between the air inlet and the communicating burner port in the valve body, an air outlet baffle 5 is arranged between the exhaust port and the communicating burner port in the valve body, one end of the protective air inlet channel is used for being communicated with a protective air source, and a cavity communicated with the communicating burner port in the valve body is communicated with the other end of the protective air inlet channel.
A partition plate is arranged between the communicating burner nozzle and the air inlet and the smoke outlet in the valve body, the air inlet and the smoke outlet are located on one side of the partition plate, namely the air inlet and the smoke outlet are located on the same side of the valve body, the communicating burner nozzle is located on the other side of the partition plate, and a partition plate is arranged between the air inlet and the smoke outlet in a valve cavity on one side of the partition plate, so that independent air inlet and exhaust are formed.
An air inlet baffle 4 is arranged on the clapboard corresponding to the air inlet, an air outlet baffle 5 is arranged on the clapboard corresponding to the smoke outlet, and air inlet and air outlet are controlled by switching the air inlet baffle and the air outlet baffle. The other end of the protective air inlet channel is arranged at one side of the two baffles.
Preferably, the protection gas inlet channel is a nitrogen gas inlet channel 6; a stop valve 7 is arranged on the protective air inlet channel. The cut-off valve 7 is an electromagnetic control valve, and is simple and convenient to control.
The air inlet direction of the protective air inlet channel in the valve body is perpendicular to the opening direction of the baffle, so that the sealing ring of the baffle can be better protected.
When the baffle in the valve is closed, the nitrogen pipeline is cut off to open the valve, so that the space in the valve cavity forms positive pressure, hot gas in the furnace is prevented from entering the cavity, a baffle sealing ring is prevented from being damaged, and the valve is stable and reliable; the oxidation of the blank by the excess air generated by the protection of nitrogen is not increased; and the structure is simple, and the improvement cost is low.
When the conditions that coal gas, air and flue gas are all closed are met, the nitrogen pipeline cut-off valve is opened, so that positive pressure is formed in the space of the cavity, hot gas in the furnace is prevented from entering the cavity, and the baffle sealing ring is prevented from being damaged; when the air and the flue gas are put into operation, the nitrogen stop valve is automatically closed. The oxidation of the blank by the excess air generated by the protection of nitrogen is not increased; meanwhile, in the gas three-way valve, under the condition that the three-way baffle is not tightly closed, air cannot enter and be mixed with gas to cause harm.
The above-mentioned features are merely for describing preferred embodiments of the present invention and may be arbitrarily combined to form a plurality of embodiments of the present invention.
The present invention has been described in detail with reference to the accompanying drawings, and it is apparent that the present invention is not limited by the above embodiments, and various insubstantial improvements can be made without modification to the present invention.
Claims (6)
1. The utility model provides a heat accumulation heating furnace switching-over valve structure, includes the valve body, be equipped with air inlet and exhaust port and intercommunication burner port on the valve body, be equipped with air inlet baffle between inherent air inlet of valve body and the intercommunication burner port, be equipped with the baffle of giving vent to anger between inherent exhaust port of valve body and the intercommunication burner port, its characterized in that: the protection gas inlet channel is further included, one end of the protection gas inlet channel is used for being communicated with a protection gas source, and a cavity communicated with the communicated burner nozzle opening in the valve body is communicated with the other end of the protection gas inlet channel.
2. The reversing valve structure of a regenerative furnace according to claim 1, wherein: the protection air inlet channel is a nitrogen inlet channel.
3. The reversing valve structure of a regenerative furnace according to claim 1, wherein: and a stop valve is arranged on the protection air inlet channel.
4. The reversing valve structure of a regenerative furnace according to claim 1, wherein: a partition plate is arranged between the internal communicated burner nozzle and the air inlet and smoke outlet of the valve body, an air inlet baffle is arranged on the partition plate corresponding to the air inlet, an air outlet baffle is arranged on the partition plate corresponding to the smoke outlet, and the other end of the air inlet channel is arranged on one side of the two baffles.
5. The reversing valve structure of a regenerative heating furnace according to claim 3, wherein: the cut-off valve is an electromagnetic control valve.
6. The reversing valve structure of a regenerative heating furnace according to claim 4, wherein: the air inlet direction of the protective air inlet channel in the valve body is vertical to the opening direction of the baffle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921551481.XU CN210623683U (en) | 2019-09-18 | 2019-09-18 | Reversing valve structure of heat storage heating furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921551481.XU CN210623683U (en) | 2019-09-18 | 2019-09-18 | Reversing valve structure of heat storage heating furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210623683U true CN210623683U (en) | 2020-05-26 |
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ID=70755472
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921551481.XU Active CN210623683U (en) | 2019-09-18 | 2019-09-18 | Reversing valve structure of heat storage heating furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210623683U (en) |
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2019
- 2019-09-18 CN CN201921551481.XU patent/CN210623683U/en active Active
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