CN214274121U - Large-traffic circulative cooling and supplementary oil absorption system - Google Patents
Large-traffic circulative cooling and supplementary oil absorption system Download PDFInfo
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- CN214274121U CN214274121U CN202120022387.6U CN202120022387U CN214274121U CN 214274121 U CN214274121 U CN 214274121U CN 202120022387 U CN202120022387 U CN 202120022387U CN 214274121 U CN214274121 U CN 214274121U
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Abstract
A high-flow circulating cooling and auxiliary oil absorption system comprises a pump set, a filter, a cooler and an oil tank which are connected through pipelines, wherein the pump set is a set of circulating and prepositive pump set, and a circulating cooling filtering and prepositive pump device is formed by the circulating and prepositive pump set, the filter and the cooler; the cooler oil outlet pipeline is divided into two branch pipelines, one branch pipeline is connected to an oil suction port of the main working pump, and the other branch pipeline is connected to an oil tank; and a regulating valve and a pressure sensor are arranged on a pipeline connecting the cooler oil outlet and the oil tank. The beneficial effects are that: the circulating cooling and filtering functions of the oil tank are realized by one set of pump set, and the auxiliary oil supply of the main working pump is realized. The manufacturing cost, installed power and energy consumption of the system are reduced, the occupied area of the system is reduced, the filtering capacity and cooling capacity of the system are improved, the service lives of components such as pump valves are prolonged, the equipment maintenance workload is reduced, and the system has wide application space.
Description
Technical Field
The utility model belongs to the technical field of machinery, especially, relate to large-traffic circulative cooling and supplementary oil absorption system.
Background
The hydraulic systems of the large-tonnage die forging oil press and the quick forging oil press have very large flow, and the matched main working pump is usually a large-displacement working pump. The common pump with large displacement has the requirement of minimum oil suction pressure on an oil suction port of the pump, and the minimum oil suction pressure under full displacement is generally required to be not less than 2 bar. Therefore, the hydraulic system needs to be provided with a set of front-mounted pump set for assisting the main pump to suck oil for the main working pump. Meanwhile, a large-flow hydraulic system generates heat greatly, and a set of circulating cooling and filtering system is required to be arranged independently for circulating filtering and cooling the hydraulic oil of the hydraulic system, so that the cleanliness and the working temperature of the hydraulic oil of the hydraulic system are ensured.
A traditional high-flow hydraulic system comprises a circulating cooling filtering device and a front pump device for assisting a main pump to absorb oil. In the circulating cooling and filtering device, hydraulic oil in an oil tank is pumped out by 1 set of circulating pump, and is discharged back to the oil tank through a filter and a cooler, so that the cleanliness and the working temperature of the hydraulic oil in the oil tank are ensured. In the preposed pump device for assisting the main working pump to suck oil, hydraulic oil in an oil tank is pumped out by 1 set of preposed pump set and is supplied to an oil suction port of the main working pump through an auxiliary oil supply pipeline. The auxiliary oil supply pipeline is connected with a safety valve and a throttle valve in parallel, and the auxiliary oil supply pressure is ensured.
The defects of the traditional large-flow circulating cooling and auxiliary oil absorption system are as follows: because the circulating cooling filtering device and the preposed pump group for absorbing oil of the auxiliary main working pump are 2 sets of independent systems, the circulating cooling filtering device and the auxiliary main working pump are required to respectively finish the circulating cooling filtering and the oil absorption of the auxiliary main working pump by 2 sets of independent pump groups, so that the hydraulic equipment has high installed power, large energy consumption, large occupied area and high construction cost.
Disclosure of Invention
The utility model aims at providing a large-traffic circulative cooling and supplementary oil absorption system realizes the circulative cooling of oil tank and filters the supplementary fuel feeding of main work pump with one set of pump package.
The technical scheme of the utility model is that: a high-flow circulating cooling and auxiliary oil suction system comprises a pump set, a filter, a cooler and an oil tank, wherein the oil tank is connected with an oil suction port of the pump set through a pipeline; the pump set is a set of circulating and preposing pump set, and the circulating and preposing pump set, a filter and a cooler form a circulating cooling filtering and preposing pump device; the cooler oil outlet of the circulating cooling filtering and pre-pump device is also provided with an oil suction port connecting port connected with the main working pump, and the oil suction port connecting port connected with the main working pump and a pipeline connecting the cooler oil outlet and the oil tank are connected in parallel and connected with the oil suction port connecting port of the main working pump through a pipeline; and a regulating valve and a pressure sensor are arranged on a pipeline connecting the cooler oil outlet and the oil tank.
The utility model relates to a large-flow circulating cooling and auxiliary oil suction system, which is characterized in that; the number of the pumps in the set of circulating and preposing pump groups is more than 1.
The utility model relates to a large-flow circulating cooling and auxiliary oil suction system, which is characterized in that; the flow of the set of circulating and prepositive pump set takes the larger of the flow required by circulating cooling and the flow required by auxiliary oil supply of a main pump as the flow of the pump set.
The utility model discloses a large-traffic circulative cooling and supplementary oil absorption system is one set with the synthesis of circulative cooling device and the oily leading pump device of supplementary main pump, both accomplishes the hydraulic oil circulative cooling filtration to the oil tank with one set of pump package, accomplishes the supplementary fuel feeding to the main work pump again. The flow of the pump group is selected according to the flow required by circulating cooling and the flow required by auxiliary oil supply of the main pump.
The utility model discloses a working process is: the circulating and preposing pump set sucks hydraulic oil from the oil tank, the hydraulic oil is output from an outlet of the circulating and preposing pump set, is filtered by the filter and cooled by the cooler and then is divided into two paths, one path of the hydraulic oil is sent to the oil tank, the other path of the hydraulic oil is sent to a main pump oil suction pipeline, the hydraulic oil is sent to a main working pump oil suction opening, and the oil suction stability of the main pump is ensured. When the host equipment is in standby, the oil discharged by the circulating and preposing pump set is filtered and cooled and then is discharged back to the oil tank through the regulating valve. After the motor of the main working pump is started, because the flow of the pump set is greater than that of the main working pump of the system, part of oil discharged by the circulating and preposed pump set is used for supplying the main pump to absorb oil, and the rest flow is discharged back to the oil tank through the regulating valve. The hydraulic oil going to the main pump returns to the oil tank through the main pump circulating valve or goes to the hydraulic actuating mechanism and then returns to the oil tank, so that the hydraulic oil going to the main pump is the hydraulic oil which is filtered and cooled all the time, and the fault rate of the main pump and subsequent components is reduced.
The utility model has the advantages that: the utility model discloses a traditional large-traffic hydraulic system design thinking has been abandoned to the system, has both realized the circulative cooling filtering capability of oil tank with one set of pump package, has realized the supplementary fuel feeding of main working pump again. The system reduces the manufacturing cost of a large-flow hydraulic system, reduces the installed power, reduces the energy consumption, reduces the floor area of the hydraulic system, improves the filtering capacity and the cooling capacity of the hydraulic system, prolongs the service life of components such as a pump valve and the like, reduces the maintenance workload of equipment, and has wide application space.
Drawings
FIG. 1 is a schematic view of the high flow rate circulation cooling and auxiliary oil suction system of the present invention
FIG. 2 is a schematic diagram of a conventional high flow rate hydronic and auxiliary oil absorption system
In the figure, 1, a circulating cooling filtering and pre-pump device, 2, a circulating and pre-pump group, 3, a filter, 4, a cooler, 5, an oil tank, 6, a regulating valve, 7, a throttle valve, 8, a pressure sensor, 9, a sewage discharging oil port, 10 a fresh oil adding port, 11, a back cooling water port, 12, a cooling water inlet, 13, a connecting port with an oil suction port of a main working pump, 14, a circulating cooling filtering device of the existing system, 15, the system comprises an existing system circulating pump, 16, an existing system filter, 17, an existing system cooler, 18, an existing system oil tank, 19, an existing system pre-pump device, 20, an existing system safety valve, 21, an existing system throttling valve, 22, an existing system pressure sensor, 23, an existing system sewage discharge oil port, 24, an existing system oil inlet, 25, an existing system cooling return water port, 26, an existing system cooling inlet, 27 and an oil suction port connecting port of the existing system and a main working pump.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and specific embodiments.
A high-flow circulating cooling and auxiliary oil suction system comprises a pump set, a filter 3, a cooler 4 and an oil tank 5, wherein the oil tank 5 is connected with an oil suction port of the pump set through a pipeline, an oil outlet of the pump set is connected with an inlet of the filter 3 through a pipeline, an outlet of the filter 3 is connected with an oil inlet of the cooler 4 through a pipeline, an oil outlet of the cooler 4 is connected with the oil tank 5 through a pipeline, a fresh oil adding port 10 and a sewage draining port 9 are arranged on a pipeline connecting an oil outlet of the pump set and an inlet of the filter, switch valves are arranged at the fresh oil adding port 10 and the sewage draining port 9, a control valve is arranged between a fresh oil adding port 10 and a sewage draining port 9 of a pipeline connecting an oil outlet of the pump set and an inlet of the filter, the cooler 4 is provided with a cooling water inlet 12 and a cooling water return port 11, the pump set is a set of circulating and preposing pump set 2, and the circulating and preposing pump set 2, the filter 3 and the cooler 4 form a circulating cooling filtering and preposing pump device 1; an oil outlet of a cooler 4 of the circulating cooling filtering and pre-pump device 1 is also provided with an oil suction port connecting port 13 connected with the main working pump, and the oil suction port connecting port 13 of the main working pump and a pipeline connecting an oil outlet of the cooler with an oil tank are connected in parallel and are connected with the oil suction port connecting port 13 of the main working pump through a pipeline; and a regulating valve 6 and a pressure sensor 8 are arranged on a pipeline connecting the cooler oil outlet and the oil tank. The number of the pumps in one set of circulating and preposing pump group 2 is more than 1. The flow of the set of circulating and preposing pump group 2 takes the larger of the flow required by circulating cooling and the flow required by auxiliary oil supply of a main pump as the flow of the pump group.
The embodiment is a hydraulic system of a 100MN oil press, a main working pump of the oil press is 12 pumps with the discharge capacity of 500ml/r, a motor is a 4-pole motor, and the total flow of the hydraulic system needs 9000L/min. The circulating cooling filtration flow of the hydraulic system of the press needs 6000L/min. According to the above parameters, adopt the utility model discloses the technical scheme of system is: an independent circulating cooling filtering pump set is cancelled, a filter and a cooler are additionally arranged at the outlet of the preposed pump set to form a circulating cooling filtering and preposed pump device, a cooler oil outlet pipeline is divided into two branch pipelines, one branch pipeline is connected to an oil suction port of the main working pump, the other branch pipeline is connected to an oil tank, and a regulating valve and a pressure sensor are arranged on a pipeline connecting the cooler oil outlet with the oil tank. The flow of the circulating and preposing pump group is provided by 3 pumps of 3400L/min, and the total flow of the circulating and preposing pump group is 10200L/min. The flow rate is larger than the flow rate required by the circulating cooling filtration of the hydraulic system of the press.
If the scheme of the traditional system is adopted, 3 pre-pump devices consisting of the pre-pump with the flow rate of 3400L/min and an independent circulating cooling filtering device with the flow rate of 6000L/min are required.
Claims (3)
1. A large-flow circulating cooling and auxiliary oil suction system comprises a pump set, a filter (3), a cooler (4) and an oil tank (5), wherein the oil tank (5) is connected with an oil suction port of the pump set through a pipeline, an oil outlet of the pump set is connected with an inlet of the filter (3) through a pipeline, an outlet of the filter (3) is connected with an oil inlet of the cooler (4) through a pipeline, an oil outlet of the cooler (4) is connected with the oil tank (5) through a pipeline, and the cooler (4) is provided with a cooling water inlet (12) and a cooling water return port (11); the pump set is a set of circulating and preposing pump set (2), and the circulating and preposing pump set (2), a filter (3) and a cooler (4) form a circulating cooling filtering and preposing pump device (1); an oil outlet of a cooler (4) of the circulating cooling filtering and pre-pump device (1) is also provided with an oil suction port connecting port (13) connected with the main working pump, and the oil suction port connecting port (13) of the main working pump and a pipeline connecting an oil outlet of the cooler and an oil tank are connected in parallel and are connected with the oil suction port connecting port (13) of the main working pump through a pipeline; and a regulating valve (6) and a pressure sensor (8) are arranged on a pipeline connecting the cooler oil outlet and the oil tank.
2. The high flow rate recirculation cooling and auxiliary oil suction system of claim 1, wherein; the number of the pumps in the set of circulating and preposing pump group (2) is more than 1.
3. The high flow rate circulative cooling and auxiliary oil suction system according to claim 2, characterized in that; the flow of the set of circulating and prepositive pump set (2) takes the larger of the flow required by circulating cooling and the flow required by auxiliary oil supply of a main pump as the flow of the pump set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120022387.6U CN214274121U (en) | 2021-01-06 | 2021-01-06 | Large-traffic circulative cooling and supplementary oil absorption system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120022387.6U CN214274121U (en) | 2021-01-06 | 2021-01-06 | Large-traffic circulative cooling and supplementary oil absorption system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214274121U true CN214274121U (en) | 2021-09-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120022387.6U Active CN214274121U (en) | 2021-01-06 | 2021-01-06 | Large-traffic circulative cooling and supplementary oil absorption system |
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| CN (1) | CN214274121U (en) |
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2021
- 2021-01-06 CN CN202120022387.6U patent/CN214274121U/en active Active
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