CN220862692U - Negative pressure cooling water loop system - Google Patents
Negative pressure cooling water loop system Download PDFInfo
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- CN220862692U CN220862692U CN202322156836.8U CN202322156836U CN220862692U CN 220862692 U CN220862692 U CN 220862692U CN 202322156836 U CN202322156836 U CN 202322156836U CN 220862692 U CN220862692 U CN 220862692U
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- 239000000498 cooling water Substances 0.000 title claims abstract description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 198
- 238000001514 detection method Methods 0.000 claims abstract description 41
- 238000001816 cooling Methods 0.000 claims abstract description 22
- 238000003860 storage Methods 0.000 claims description 10
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 238000004512 die casting Methods 0.000 description 20
- 238000002347 injection Methods 0.000 description 20
- 239000007924 injection Substances 0.000 description 20
- 238000000034 method Methods 0.000 description 4
- 230000003111 delayed effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000005058 metal casting Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
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Abstract
The utility model relates to the technical field of cooling loops, in particular to a negative pressure cooling water loop system which comprises a water inlet pipe, a water outlet pipe and a device to be cooled, wherein the water outlet end of the water inlet pipe and the water inlet end of the water outlet pipe are respectively communicated with the water inlet end and the water outlet end of the device to be cooled; the diaphragm pump and the water flow detection device are sequentially arranged between the water outlet end of the water outlet pipe and the water outlet end of the device to be cooled, and the negative pressure detection device is arranged between the water inlet end of the water inlet pipe and the water inlet end of the device to be cooled. The utility model aims to provide a negative pressure cooling water loop system which can rapidly switch on and off water flow in a loop, improve the start-stop efficiency of a cooling loop and reduce the production cost.
Description
Technical Field
The utility model relates to the technical field of cooling loops, in particular to a negative pressure cooling water loop system.
Background
At present, a die casting machine is a common device in the technical field of molding in the mechanical industry, and is an industrial machine for hydraulically injecting molten metal into a die under the action of pressure to cool and mold, and obtaining a solid metal casting after die opening. Because a large amount of friction can occur in the die casting process of the die and the punch of the die casting machine, the punch and the die need to be cooled in time during working, otherwise, the normal production is affected.
Chinese patent CN208214266U discloses a cooling system for injection rod of die casting machine, which belongs to the field of cooling system, and comprises injection punch, connector, injection rod, cooling device, controller fixedly arranged on the cooling device, and water pump; the injection punch is fixedly connected with the injection rod through a connector; the injection punch is provided with a punch part and a connecting part, and a cooling cavity is arranged in the punch part; the connector is provided with a first connecting body, a sealing part, a second connecting body and a water injection hole; the injection punch, the connector and the cooling device comprise a cooling water tank, a water inlet pipe, an electromagnetic valve, a water inlet hose, a water outlet pipe and a water outlet hose; the water outlet pipe is provided with a temperature sensor and a heat exchanger; the electromagnetic valve, the temperature sensor and the water pump are electrically connected with the controller, and the injection rod cooling system of the die casting machine is simple in structure and convenient to use, can realize the recycling of cooling water, has large and uniform cooling area, has high effect efficiency and prolongs the service life of the injection rod; the problems are that: in the actual operation process, after the heat exchanger breaks down, the die casting machine needs to be stopped firstly, the heat exchanger can be overhauled again, after the overhauling of the heat exchanger is completed, the die casting machine can be started to continue production, and as cooling water is always in a circulating state, the condition that the heat exchanger can not exchange heat with the cooling water frequently occurs, the water temperature of the cooling water can be continuously increased along with the increase of the circulating times in a pipeline, the die casting machine is stopped, the die casting machine is started again after the water temperature is reduced to an acceptable range, and the production efficiency of the die casting machine is greatly influenced.
Disclosure of Invention
In order to overcome the defects and shortcomings in the prior art, the utility model aims to provide a negative pressure cooling water loop system which can rapidly switch on and off water flow in a loop, improve the start-stop efficiency of a cooling loop and reduce the production cost.
The utility model is realized by the following technical scheme:
The negative pressure cooling water loop system comprises a water inlet pipe, a water outlet pipe and a device to be cooled, wherein the water outlet end of the water inlet pipe and the water inlet end of the water outlet pipe are respectively communicated with the water inlet end and the water outlet end of the device to be cooled; a diaphragm pump and a water flow detection device are sequentially arranged between the water outlet end of the water outlet pipe and the water outlet end of the device to be cooled, and a negative pressure detection device is arranged between the water inlet end of the water inlet pipe and the water inlet end of the device to be cooled; the water loop system also comprises a blow-down valve arranged on the water outlet pipe or the water inlet pipe, and when the blow-down valve is arranged on the water outlet pipe, the blow-down valve is positioned between the water flow detection device and the device to be cooled; when the vent valve is arranged on the water inlet pipe, the vent valve is arranged between the water inlet end of the water inlet pipe and the negative pressure detection device.
The water loop system further comprises a first manual valve arranged on the water outlet pipe and a second manual valve arranged on the water inlet pipe, and the second manual valve is positioned between the negative pressure detection device and the device to be cooled; when the vent valve is arranged on the water outlet pipe, the first manual valve is positioned between the vent valve and the device to be cooled; when the emptying valve is arranged on the water inlet pipe, the first manual valve is positioned between the water flow detection device and the device to be cooled.
Wherein, a test valve is also connected between the water inlet pipe and the water outlet pipe, when the emptying valve is arranged on the water outlet pipe, one end of the test valve is connected between the vent valve and the first manual valve, and the other end of the test valve is connected between the negative pressure outlet detection device and the second manual valve; when the emptying valve is arranged on the water inlet pipe, one end of the test valve is connected between the water flow detection device and the first manual valve, and the other end of the test valve is connected between the negative pressure outlet detection device and the second manual valve.
Wherein, the outlet pipe still is provided with the filter and the check valve.
The water inlet end of the water inlet pipe is provided with a water storage tank, the water outlet pipe is provided with an exhaust valve, the exhaust valve is positioned between the diaphragm pump and the water outlet end of the water outlet pipe, and the exhaust end of the exhaust valve is communicated with the upper end of the water storage tank.
When the emptying valve is arranged on the water inlet pipe, an electric valve and a third manual valve are further arranged between the water storage tank and the emptying valve, and the third manual valve and the electric valve are arranged in parallel.
The water inlet pipe is further provided with a water flow indicator, and the water flow indicator is located between the negative pressure detection device and the device to be cooled.
The utility model has the beneficial effects that:
according to the negative pressure cooling water loop system, the diaphragm pump, the water flow detection device, the negative pressure detection device and the emptying valve are arranged, when the work of the device to be cooled is required to be started, the emptying valve is closed, the diaphragm pump is started, at the moment, the negative pressure of the water inlet pipe is detected by the negative pressure detection device, and then the water flow detection device detects that the water outlet pipe has water flow, so that the device to be cooled can be controlled to start for use; when the work of the device to be cooled is required to be stopped, the diaphragm pump is stopped, the vent valve is opened, after the vent valve enters air, the water flow detection device detects that the water outlet pipe is lack of water, and the negative pressure detection device is reset, so that the device to be cooled can be controlled to stop using. Compared with the prior art, the utility model has faster response speed of starting and stopping the device to be cooled, and because the loop is in a negative pressure state, the splashing outflow of water flow when the pipeline is abnormally dropped is avoided, and the safety coefficient is higher.
Drawings
The utility model will be further described with reference to the accompanying drawings, in which embodiments do not constitute any limitation of the utility model, and other drawings can be obtained by one of ordinary skill in the art without inventive effort from the following drawings.
Fig. 1 is a schematic diagram showing connection of the loop system in embodiment 1.
Fig. 2 is a schematic diagram showing connection of the loop system in embodiment 2.
Reference numerals
The device comprises a water inlet pipe-101, a water outlet pipe-102, a device to be cooled-103, a diaphragm pump-104, a water flow detection device-105, a negative pressure detection device-106, an emptying valve-107, a first manual valve-108, a second manual valve-109, a test valve-110, a filter-111, a one-way valve-112, a water storage tank-113, an exhaust valve-114, an electric valve-115, a third manual valve-116 and a water flow indicator-117.
Detailed Description
In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. The present utility model may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the utility model, whereby the utility model is not limited to the specific embodiments disclosed below.
In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
At present, a die casting machine is a common device in the technical field of molding in the mechanical industry, and is an industrial machine for hydraulically injecting molten metal into a die under the action of pressure to cool and mold, and obtaining a solid metal casting after die opening. Because a large amount of friction can occur in the die casting process of the die and the punch of the die casting machine, the punch and the die need to be cooled in time during working, otherwise, the normal production is affected.
Chinese patent CN208214266U discloses a cooling system for injection rod of die casting machine, which belongs to the field of cooling system, and comprises injection punch, connector, injection rod, cooling device, controller fixedly arranged on the cooling device, and water pump; the injection punch is fixedly connected with the injection rod through a connector; the injection punch is provided with a punch part and a connecting part, and a cooling cavity is arranged in the punch part; the connector is provided with a first connecting body, a sealing part, a second connecting body and a water injection hole; the injection punch, the connector and the cooling device comprise a cooling water tank, a water inlet pipe, an electromagnetic valve, a water inlet hose, a water outlet pipe and a water outlet hose; the water outlet pipe is provided with a temperature sensor and a heat exchanger; the electromagnetic valve, the temperature sensor and the water pump are electrically connected with the controller, and the injection rod cooling system of the die casting machine is simple in structure and convenient to use, can realize the recycling of cooling water, has large and uniform cooling area, has high effect efficiency and prolongs the service life of the injection rod; the problems are that: in the actual operation process, after the heat exchanger breaks down, the die casting machine needs to be stopped firstly, the heat exchanger can be overhauled again, after the overhauling of the heat exchanger is completed, the die casting machine can be started to continue production, and as cooling water is always in a circulating state, the condition that the heat exchanger can not exchange heat with the cooling water frequently occurs, the water temperature of the cooling water can be continuously increased along with the increase of the circulating times in a pipeline, the die casting machine is stopped, the die casting machine is started again after the water temperature is reduced to an acceptable range, and the production efficiency of the die casting machine is greatly influenced.
Example 1
In order to solve the above-mentioned problems, this embodiment discloses a negative pressure cooling water loop system, the structure of which is shown in fig. 1, the loop system includes a water inlet pipe 101, a water outlet pipe 102 and a device to be cooled 103 (in this embodiment, a mold or a cold head), wherein the water outlet end of the water inlet pipe 101 and the water inlet end of the water outlet pipe 102 are respectively communicated with the water inlet end and the water outlet end of the device to be cooled 103; a diaphragm pump 104 and a water flow detection device 105 are sequentially arranged between the water outlet end of the water outlet pipe 102 and the water outlet end of the device 103 to be cooled, and a negative pressure detection device 106 is arranged between the water inlet end of the water inlet pipe 101 and the water inlet end of the device 103 to be cooled; the water circuit system further comprises a vent valve 107 arranged at the water outlet pipe 102, wherein the vent valve 107 is positioned between the water flow detection device 105 and the device 103 to be cooled.
In this embodiment, the water outlet pipe 102 is further provided with a filter 111 and a check valve 112 to ensure a more stable operation state of the water outlet pipe 102.
Further, a water storage tank 113 is disposed at the water inlet end of the water inlet pipe 101, the water outlet pipe 102 is provided with an exhaust valve 114, the exhaust valve 114 is located between the diaphragm pump 104 and the water outlet end of the water outlet pipe 102, and the exhaust end of the exhaust valve 114 is communicated with the upper end of the water storage tank 113. By arranging the water storage tank 113, the water flow of the water inlet pipe 101 can have a certain buffering capacity; in addition, an exhaust valve 114 is arranged at the water outlet pipe 102, so that the partially condensed water vapor can be collected, and the use efficiency is improved.
Specifically, in the negative pressure cooling water loop system, when the operation of the device 103 to be cooled needs to be started, the diaphragm pump 104 is started by closing the vent valve 107 through the diaphragm pump 104, the water flow detection device 105 detects the negative pressure of the water inlet pipe 101, and then the water flow detection device 105 detects the water flow of the water outlet pipe 102, so that the device 103 to be cooled can be controlled to start for use; when the operation of the device 103 to be cooled needs to be stopped, the diaphragm pump 104 is stopped, the vent valve 107 is opened, after the vent valve 107 enters air, the water flow detection device 105 detects that the water outlet pipe 102 is lack of water, and the negative pressure detection device 106 is reset, so that the device 103 to be cooled can be controlled to stop using. Compared with the prior art, the utility model has faster response speed of starting and stopping the device 103 to be cooled, and has higher safety factor because the loop is in a negative pressure state and the splashing outflow of water flow is not worried about when the pipeline is abnormally dropped.
Further, the water circuit system further comprises a first manual valve 108 arranged on the water outlet pipe 102 and a second manual valve 109 arranged on the water inlet pipe 101, wherein the second manual valve 109 is positioned between the negative pressure detection device 106 and the device 103 to be cooled, and the first manual valve 108 is positioned between the vent valve 107 and the device 103 to be cooled. By providing a first manual valve 108 and a second manual valve 109 between the outlet pipe 102, the device 103 to be cooled and the inlet pipe 101, the flow through the outlet pipe 102 or the inlet pipe 101 can be manually shut off.
Further, a test valve 110 is further connected between the water inlet pipe 101 and the water outlet pipe 102, one end of the test valve 110 is connected between the blow valve 107 and the first manual valve 108, and the other end of the test valve 110 is connected between the negative pressure detecting device 106 and the second manual valve 109. By arranging the test valve 110 and matching the first manual valve 108 and the second manual valve 109, water flow between the water inlet pipe 101 and the water outlet pipe 102 does not pass through the device 103 to be cooled, and test, verification and other operations are convenient to perform.
Example 2
As shown in fig. 2, in the present embodiment, an air release valve 107 is provided to the water intake pipe 101, the air release valve 107 being located between the water intake end of the water intake pipe 101 and the negative pressure detection device 106; meanwhile, the first manual valve 108 is located between the water flow detecting device 105 and the device 103 to be cooled, and one end of the test valve 110 is connected between the water flow detecting device 105 and the first manual valve 108, and the other end of the test valve 110 is connected between the negative pressure detecting device 106 and the second manual valve 109.
Further, an electric valve 115 and a third manual valve 116 are further disposed between the water tank 113 and the blow valve 107, and the third manual valve 116 is disposed in parallel with the electric valve 115.
The difference between this embodiment and embodiment 1 is that: when the negative pressure detection device 106 detects the negative pressure of the water outlet pipe 102, the electric valve 115 is opened at the same time, and when the water flow detection device 105 detects that the water outlet pipe 102 lacks water, the diaphragm pump 104 can be closed in a delayed manner, so that the use of certain scenes requiring delayed start and stop can be satisfied.
Except for the above differences, the other features of this embodiment are the same as those of embodiment 1, and will not be described here again.
Claims (7)
1. The utility model provides a negative pressure cooling water loop system, includes inlet tube, outlet pipe and waits cooling device, the play water end of inlet tube and the play water end of outlet pipe communicate with the play water end of waiting cooling device respectively, its characterized in that:
A diaphragm pump and a water flow detection device are sequentially arranged between the water outlet end of the water outlet pipe and the water outlet end of the device to be cooled, and a negative pressure detection device is arranged between the water inlet end of the water inlet pipe and the water inlet end of the device to be cooled;
The water loop system also comprises a blow-down valve arranged on the water outlet pipe or the water inlet pipe, and when the blow-down valve is arranged on the water outlet pipe, the blow-down valve is positioned between the water flow detection device and the device to be cooled; when the vent valve is arranged on the water inlet pipe, the vent valve is arranged between the water inlet end of the water inlet pipe and the negative pressure detection device.
2. A negative pressure cooling water circuit system according to claim 1, characterized in that: the water loop system also comprises a first manual valve arranged on the water outlet pipe and a second manual valve arranged on the water inlet pipe, and the second manual valve is positioned between the negative pressure detection device and the device to be cooled;
When the vent valve is arranged on the water outlet pipe, the first manual valve is positioned between the vent valve and the device to be cooled; when the emptying valve is arranged on the water inlet pipe, the first manual valve is positioned between the water flow detection device and the device to be cooled.
3. A negative pressure cooling water circuit system according to claim 1, characterized in that: a test valve is also connected between the water inlet pipe and the water outlet pipe,
When the emptying valve is arranged on the water outlet pipe, one end of the test valve is connected between the emptying valve and the first manual valve, and the other end of the test valve is connected between the negative pressure outlet detection device and the second manual valve; when the emptying valve is arranged on the water inlet pipe, one end of the test valve is connected between the water flow detection device and the first manual valve, and the other end of the test valve is connected between the negative pressure outlet detection device and the second manual valve.
4. A negative pressure cooling water circuit system according to claim 1, characterized in that: the water outlet pipe is also provided with a filter and a one-way valve.
5. A negative pressure cooling water circuit system according to claim 1, characterized in that: the water inlet end of the water inlet pipe is provided with a water storage tank, the water outlet pipe is provided with an exhaust valve, the exhaust valve is positioned between the diaphragm pump and the water outlet end of the water outlet pipe, and the exhaust end of the exhaust valve is communicated with the upper end of the water storage tank.
6. A negative pressure cooling water circuit system according to claim 5, wherein: when the vent valve is arranged on the water inlet pipe, an electric valve and a third manual valve are further arranged between the water storage tank and the vent valve, and the third manual valve is arranged in parallel with the electric valve.
7. A negative pressure cooling water circuit system according to claim 5, wherein: the water inlet pipe is also provided with a water flow indicator, and the water flow indicator is positioned between the negative pressure detection device and the device to be cooled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322156836.8U CN220862692U (en) | 2023-08-10 | 2023-08-10 | Negative pressure cooling water loop system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322156836.8U CN220862692U (en) | 2023-08-10 | 2023-08-10 | Negative pressure cooling water loop system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220862692U true CN220862692U (en) | 2024-04-30 |
Family
ID=90820958
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322156836.8U Active CN220862692U (en) | 2023-08-10 | 2023-08-10 | Negative pressure cooling water loop system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220862692U (en) |
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2023
- 2023-08-10 CN CN202322156836.8U patent/CN220862692U/en active Active
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