CN212175020U - Circulating cooling device of carburizing furnace - Google Patents
Circulating cooling device of carburizing furnace Download PDFInfo
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- CN212175020U CN212175020U CN202020791084.6U CN202020791084U CN212175020U CN 212175020 U CN212175020 U CN 212175020U CN 202020791084 U CN202020791084 U CN 202020791084U CN 212175020 U CN212175020 U CN 212175020U
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Abstract
The utility model belongs to the technical field of the carburizing furnace, specifically be a circulating cooling device of carburizing furnace, including furnace body, gradient cooling system, first circulating cooling mechanism and second circulating cooling mechanism, gradient cooling system includes that elevator pump, medium temperature outlet pipe, cold water advance pipe, first solenoid valve, medium temperature water storage tank, outlet pipe, medium temperature water advance pipe, second solenoid valve and inlet tube, the fixed suit of inlet tube is on the delivery end of elevator pump, the fixed suit of medium temperature outlet pipe is on the intake of elevator pump holds. This circulative cooling device of carburizing furnace utilizes well warm water storage tank to collect the water after the internal circulative cooling of furnace, and when the follow-up cooling of furnace body, the well warm water of utilizing the elevator pump to take the interior warm water storage tank of extraction earlier and storing cools down the furnace body, extracts the cooling water again and carries out the secondary to the furnace body to form the gradient cooling to the furnace body, can ensure the heat treatment quality of work piece in the furnace body, avoid causing the loss to the furnace body.
Description
Technical Field
The utility model relates to a carburizing furnace technical field especially relates to a circulating cooling device of carburizing furnace.
Background
The carburizing furnace is a novel energy-saving periodic operation type heat treatment electric furnace, the heat source of the carburizing furnace has two forms, one is a fuel combustion heat supply mode, and fuel oil and coal gas are contained in the heat supply mode; the other is an electric heating type; the carburizing furnace has two types of intermittent and continuous types, and the selection of the intermittent or continuous type can be determined by comparing various factors such as yield, variety, size and shape of a workpiece, thickness of a carburizing layer, investment, management cost and the like.
In the use process of the carburizing furnace, the circulating cooling device is required to be used for cooling the carburizing furnace, however, the circulating cooling device of the existing carburizing furnace generally directly adopts low-temperature cooling water to cool the carburizing furnace, but the temperature of the carburizing furnace is higher, if the cooling water is directly used for cooling, a larger temperature difference can be formed, so that the heat treatment quality of a workpiece is reduced, and the loss of the furnace body can be caused under the condition of long-term use.
In order to solve the problems, the application provides a circulating cooling device of a carburizing furnace.
SUMMERY OF THE UTILITY MODEL
Objects of the invention
For solving the technical problem that exists among the background art, the utility model provides a circulative cooling device of carburizing furnace has the characteristics of gradient cooling.
(II) technical scheme
In order to solve the technical problem, the utility model provides a circulating cooling device of a carburizing furnace, which comprises a furnace body, a gradient cooling system, a first circulating cooling mechanism and a second circulating cooling mechanism, wherein the gradient cooling system comprises a lift pump, a medium temperature water outlet pipe, a cold water inlet pipe, a first electromagnetic valve, a medium temperature water storage tank, a water outlet pipe, a medium temperature water inlet pipe, a second electromagnetic valve and a water inlet pipe, the water inlet pipe is fixedly sleeved on the water outlet end of the lift pump, the medium temperature water outlet pipe is fixedly sleeved on the water inlet end of the lift pump, the cold water inlet pipe is fixedly sleeved on the medium temperature water outlet pipe, the first electromagnetic valve is fixedly sleeved on the medium temperature water outlet pipe and the cold water inlet pipe, one end of the medium temperature water outlet pipe is fixedly sleeved on the bottom of the side surface of the medium temperature water storage tank, the medium temperature water inlet pipe is fixedly sleeved on the water outlet pipe, and, one end of the medium temperature water inlet pipe is fixedly sleeved with the top of the medium temperature water storage tank.
Preferably, first circulative cooling mechanism includes first cooling intermediate layer, first temperature sensor, first circulating pipe, first inlet tube and first outlet pipe, first temperature sensor fixed mounting is in first cooling intermediate layer, first circulating pipe winding is in first cooling intermediate layer, and the water inlet and the delivery port department of first circulating pipe are equipped with first inlet tube and first outlet pipe respectively.
Preferably, the second circulating cooling mechanism comprises a second cooling interlayer, a second temperature sensor, a second circulating pipe, a second water inlet pipe and a second water outlet pipe, the second temperature sensor is fixedly installed in the second cooling interlayer, the second circulating pipe is wound in the second cooling interlayer, and a water inlet and a water outlet of the second circulating pipe are respectively provided with the second water inlet pipe and the second water outlet pipe.
Preferably, a liquid level sensor is fixedly mounted inside the medium-temperature water storage tank, and a heat insulation layer is arranged on the inner wall of the medium-temperature water storage tank.
Preferably, the first water inlet pipe and the first water outlet pipe are respectively fixedly sleeved with the water inlet pipe and the water outlet pipe.
Preferably, the second water inlet pipe and the second water outlet pipe are respectively fixedly sleeved with the water inlet pipe and the water outlet pipe.
The above technical scheme of the utility model has following profitable technological effect:
1. this circulative cooling device of carburizing furnace utilizes well warm water storage tank to collect the water after the internal circulative cooling of furnace, and when the follow-up cooling of furnace body, the well warm water of utilizing the elevator pump to take the interior warm water storage tank of extraction earlier and storing cools down the furnace body, extracts the cooling water again and carries out the secondary to the furnace body to form the gradient cooling to the furnace body, can ensure the heat treatment quality of work piece in the furnace body, avoid causing the loss to the furnace body.
2. This circulative cooling device of carburizing furnace through set up two sets of independent circulative cooling mechanisms in the furnace body, when cooling off the furnace body, carries out sectional type synchronous cooling to the furnace body, can improve furnace body refrigerated homogeneity and efficiency.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a sectional view of the structure of the middle temperature water storage tank of the present invention.
Reference numerals:
1. a furnace body; 2. a lift pump; 3. a medium-temperature water outlet pipe; 4. a cold water inlet pipe; 5. a first solenoid valve; 6. a medium-temperature water storage tank; 61. a liquid level sensor; 62. a heat-insulating layer; 7. a water outlet pipe; 8. medium temperature water inlet pipe; 9. a second solenoid valve; 101. a first temperature-reducing interlayer; 102. a first temperature sensor; 103. a first circulation pipe; 104. a first water inlet pipe; 105. a first water outlet pipe; 111. a second cooling interlayer; 112. a second temperature sensor; 113. a second circulation pipe; 114. a second water inlet pipe; 115. a second water outlet pipe; 12. and (4) a water inlet pipe.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the description is intended to be illustrative only and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
Fig. 1 is a schematic view of the overall structure of the present invention;
as shown in fig. 1, the utility model provides a circulative cooling device of carburizing furnace, including gradient cooling system, gradient cooling system includes medium temperature water cooling system and cooling water cooling system, medium temperature water cooling system comprises elevator pump 2, medium temperature outlet pipe 3, first solenoid valve 5, medium temperature water storage tank 6, inlet tube 12, first circulative cooling mechanism, second circulative cooling mechanism, outlet pipe 7, second solenoid valve 9.
When the furnace body 1 is cooled, a group of first electromagnetic valves 5 and second electromagnetic valves 9 on a cold water inlet pipe 4 and a medium-temperature water inlet pipe 8 are kept closed, another group of first electromagnetic valves 5 and second electromagnetic valves 9 on a water inlet pipe 12 and a water outlet pipe 7 are opened, a lift pump 2 is started to pump medium-temperature water collected in a medium-temperature water storage tank 6, and the medium-temperature water is pumped into a first circulating cooling mechanism and a second circulating cooling mechanism to circulate, so that the furnace body 1 is pre-cooled, and high-temperature water generated after cooling is discharged through the water outlet pipe 7.
It should be noted that the medium temperature water collected in the medium temperature water storage tank 6 is derived from cooling water and is generated in the furnace body through one-time circulation in the first circulating cooling mechanism and the second circulating cooling mechanism, and an additional heating mechanism is not required for heating, so that the energy conservation and the environmental protection are realized.
The cooling water cooling system is composed of a lifting pump 2, a cold water inlet pipe 4, a first electromagnetic valve 5, a medium temperature water storage tank 6, a water inlet pipe 12, a first circulating cooling mechanism, a second circulating cooling mechanism, a water outlet pipe 7, a medium temperature water inlet pipe 8 and a second electromagnetic valve 9.
After the furnace body 1 is cooled and is pre-cooled through a medium-temperature water cooling system, a group of first electromagnetic valves 5 and second electromagnetic valves 9 on a medium-temperature water outlet pipe 3 and a water outlet pipe 7 are kept closed, a cold water inlet pipe 4 and another group of first electromagnetic valves 5 and second electromagnetic valves 9 on a medium-temperature water inlet pipe 8 are opened, a lifting pump 2 is started to pump cooling water and pump the cooling water into a first circulating cooling mechanism and a second circulating cooling mechanism for circulation, so that the furnace body 1 is cooled for the second time, and medium-temperature water generated after cooling is discharged into a medium-temperature water storage tank 6 through the medium-temperature water inlet pipe 8 and is collected.
The cold water inlet pipe 4 is connected with a cold water source.
Furthermore, the circulating cooling device realizes gradient cooling of the furnace body 1 through the medium-temperature water cooling system and the cooling water cooling system, can ensure the heat treatment quality of workpieces in the furnace body 1, and avoids loss of the furnace body 1.
The first circulating cooling mechanism comprises a first cooling interlayer 101 arranged in the furnace wall, a first temperature sensor 102 arranged in the first cooling interlayer 101, a first circulating pipe 103 wound in the first cooling interlayer 101, and a first water inlet pipe 104 and a first water outlet pipe 105 which are respectively connected with a water inlet and a water outlet of the first circulating pipe 103.
The second circulating cooling mechanism comprises a second cooling interlayer 111 arranged in the furnace wall, a second temperature sensor 112 arranged in the second cooling interlayer 111, a second circulating pipe 113 wound in the second cooling interlayer 111, and a second water inlet pipe 114 and a second water outlet pipe 115 which are respectively connected with a water inlet and a water outlet of the second circulating pipe 113.
Utilize first circulative cooling mechanism and second circulative cooling mechanism to carry out synchronous and independent cooling to furnace body 1 holistic top and bottom, compare in adopting a set of circulative cooling mechanism, shortened the cycle time and the distance of cooling water in the furnace body to avoid the cooling water constantly to rise at circulation in-process temperature, lead to its problem different to the cooling effect of furnace body 1 different positions, thereby improve the homogeneity of furnace body 1 cooling.
It should be noted that the first temperature sensor 102 disposed in the first temperature reduction interlayer 101 and the second temperature sensor 112 disposed in the second temperature reduction interlayer 111 are used to monitor the temperature reduction of the furnace body 1, so as to realize the switching between the medium temperature water cooling system and the cooling water cooling system when the furnace body 1 is cooled.
FIG. 2 is a sectional view of the structure of the middle temperature water storage tank of the present invention;
referring to fig. 2, in the present embodiment, a liquid level sensor 61 is fixedly installed inside the medium-temperature water storage tank 6.
In order to avoid the medium temperature water stored in the medium temperature water storage tank 6 from overflowing, a liquid level sensor 61 is installed in the medium temperature water storage tank 6 to monitor the medium temperature water stored in the medium temperature water storage tank 6.
And a heat preservation layer 62 is arranged on the inner wall of the medium-temperature water storage tank 6.
In order to avoid the excessive temperature drop of the medium temperature water collected in the medium temperature water storage tank 6, the inner wall of the medium temperature water storage tank 6 is provided with a heat preservation layer 62 for preserving the temperature of the medium temperature water.
It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.
Claims (6)
1. A circulating cooling device of a carburizing furnace comprises a furnace body (1), a gradient cooling system, a first circulating cooling mechanism and a second circulating cooling mechanism, and is characterized in that the gradient cooling system comprises a lifting pump (2), a medium-temperature water outlet pipe (3), a cold water inlet pipe (4), a first electromagnetic valve (5), a medium-temperature water storage tank (6), a water outlet pipe (7), a medium-temperature water inlet pipe (8), a second electromagnetic valve (9) and a water inlet pipe (12), wherein the water inlet pipe (12) is fixedly sleeved on the water outlet end of the lifting pump (2), the medium-temperature water outlet pipe (3) is fixedly sleeved on the water inlet end of the lifting pump (2), the medium-temperature water outlet pipe (3) is fixedly sleeved with the cold water inlet pipe (4), the medium-temperature water outlet pipe (3) and the cold water inlet pipe (4) are both fixedly sleeved with the first electromagnetic valve (5), and one end of the medium-temperature water outlet pipe (3) is fixedly sleeved with the bottom of, the water outlet pipe (7) is fixedly sleeved with a medium temperature water inlet pipe (8), the water outlet pipe (7) and the medium temperature water inlet pipe (8) are fixedly sleeved with a second electromagnetic valve (9), and one end of the medium temperature water inlet pipe (8) is fixedly sleeved with the top of the medium temperature water storage tank (6).
2. The circulating cooling device of the carburizing furnace according to claim 1, wherein the first circulating cooling mechanism comprises a first cooling interlayer (101), a first temperature sensor (102), a first circulating pipe (103), a first water inlet pipe (104) and a first water outlet pipe (105), the first temperature sensor (102) is fixedly installed in the first cooling interlayer (101), the first circulating pipe (103) is wound in the first cooling interlayer (101), and a first water inlet pipe (104) and a first water outlet pipe (105) are respectively arranged at a water inlet and a water outlet of the first circulating pipe (103).
3. The circulating cooling device of a carburizing furnace according to claim 1, wherein the second circulating cooling mechanism comprises a second cooling interlayer (111), a second temperature sensor (112), a second circulating pipe (113), a second water inlet pipe (114) and a second water outlet pipe (115), the second temperature sensor (112) is fixedly installed in the second cooling interlayer (111), the second circulating pipe (113) is wound in the second cooling interlayer (111), and a second water inlet pipe (114) and a second water outlet pipe (115) are respectively arranged at a water inlet and a water outlet of the second circulating pipe (113).
4. A circulating cooling device of a carburizing furnace according to claim 1, characterized in that a liquid level sensor (61) is fixedly installed inside the medium temperature water storage tank (6), and an insulating layer (62) is arranged on the inner wall of the medium temperature water storage tank (6).
5. A circulating cooling device of a carburizing furnace according to claim 2, wherein the first water inlet pipe (104) and the first water outlet pipe (105) are respectively fixedly sleeved with the water inlet pipe (12) and the water outlet pipe (7).
6. A circulating cooling device of a carburizing furnace according to claim 3, characterized in that the second water inlet pipe (114) and the second water outlet pipe (115) are fixedly sleeved with the water inlet pipe (12) and the water outlet pipe (7), respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020791084.6U CN212175020U (en) | 2020-05-13 | 2020-05-13 | Circulating cooling device of carburizing furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020791084.6U CN212175020U (en) | 2020-05-13 | 2020-05-13 | Circulating cooling device of carburizing furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212175020U true CN212175020U (en) | 2020-12-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020791084.6U Active CN212175020U (en) | 2020-05-13 | 2020-05-13 | Circulating cooling device of carburizing furnace |
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| Country | Link |
|---|---|
| CN (1) | CN212175020U (en) |
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2020
- 2020-05-13 CN CN202020791084.6U patent/CN212175020U/en active Active
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