CN201747555U - Double-pump type pumping plant - Google Patents
Double-pump type pumping plant Download PDFInfo
- Publication number
- CN201747555U CN201747555U CN2010202041836U CN201020204183U CN201747555U CN 201747555 U CN201747555 U CN 201747555U CN 2010202041836 U CN2010202041836 U CN 2010202041836U CN 201020204183 U CN201020204183 U CN 201020204183U CN 201747555 U CN201747555 U CN 201747555U
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- China
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- pump assembly
- metering pump
- pumping plant
- auxiliary metering
- auxiliary
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Abstract
The utility model discloses a double-pump type pumping plant, which comprises a base bracket, a constant pressure variable pump component, an ejector valve, an auxiliary dosing pump component, a valve block, an electromagnetic relief valve, a programmable logic controller and a system pressure sensor; and the programmable logic controller transmits an execution signal to the auxiliary dosing pump component and the electromagnetic relief valve after receiving a detection signal of the system pressure sensor. The utility model is simple in structure, the auxiliary dosing pump component is connected in parallel on the basis of the original single dosing pump component, the operation of the auxiliary dosing pump component and the on/off of the electromagnetic relief valve are controlled by detecting the variation of the system pressure, and the discharge capacity is flexibly increased, so that the pumping plant meets the requirement of large discharge capacity, and solves the problem of insufficient discharge capacity of the conventional single-pump type pumping plant.
Description
Technical field
The utility model relates to a kind of pumping plant, is specifically related to a kind of pumping plant that adopts the double pump composite structure.
Background technique
Existing pumping plant adopts the configuration structure of single variable displacement pump mostly, it comprises base support 3, constant pressure variable displacement pump assembly 1, constant pressure variable displacement pump assembly 1 comprises constant-pressure variable pump motor 11, constant pressure variable displacement pump joiner 12 and constant pressure variable displacement pump 13, constant pressure variable displacement pump assembly 1 is installed on the base support 3, as shown in Figure 1, but progress along with society, existing single pump type pumping plant can not meet the demands, because it adopts single pump control technique, need to be equipped with the constant pressure variable displacement pump of big discharge capacity, this pump market resource is rare and expensive, need to be equipped with jumbo a plurality of accumulators in addition and could satisfy the production needs, and the motor of single pump type becomes " ∧ " type in the load capacity of each dust cycle, and it is big with oil mass, motor is in overload operation work and system pressure instability incessantly, reduces main motor working life, needs Electric Machine at Pumping Station power also bigger.
The model utility content
The purpose of this utility model is at the problems referred to above deficiency, and a kind of double pump formula pumping plant that can rationally increase discharge capacity automatically, flexibly is provided.
In order to achieve the above object, the utility model is by the following technical solutions:
A kind of double pump formula pumping plant comprises base support, constant pressure variable displacement pump assembly and ejector valve, also comprises:
Auxiliary metering pump assembly, its with the constant pressure variable displacement pump assembly in ejector valve also combined stream connect;
The valve piece, it is located at the outlet of this auxiliary metering pump assembly;
Electromagnetic relief valve, it is located on the valve piece;
Programmable controller, itself and constant pressure variable displacement pump assembly, auxiliary metering pump assembly and electromagnetic relief valve electrically connect; And
The system pressure sensor, itself and programmable controller electrically connect;
Emission is carried out signal to auxiliary metering pump assembly and electromagnetic relief valve behind the testing signal of programmable controller receiving system pressure transducer.
Further, described auxiliary metering pump assembly comprises auxiliary metering pump motor, auxiliary metering pump joiner and auxiliary metering pump.
Above-mentioned auxiliary metering pump assembly is installed in one and is set up in scaffold on the constant pressure variable displacement pump assembly, and this scaffold is fixedly mounted on the base support.
The utility model is simple in structure, it is one group of auxiliary metering pump assembly in parallel on the basis of original single constant pressure variable displacement pump group, and control the work of auxiliary metering pump assembly and the closure of electromagnetic relief valve by the variation of detection system pressure, increase discharge capacity flexibly, satisfy big discharge capacity requirement, solve the problem of existing single pump type pumping plant discharge capacity deficiency.
Description of drawings
Fig. 1 is existing single pump type pumping plant structural representation;
Fig. 2 is the structural representation of the utility model double pump formula pumping plant;
Fig. 3 is STRUCTURE DECOMPOSITION figure of the present utility model;
Fig. 4 is the utility model auxiliary variable pump modular construction exploded view;
Fig. 5 is the utility model constant voltage metering pump modular construction exploded view;
Fig. 6 is the utility model electrical principle block diagram.
Below the utility model is described in further detail by the drawings and specific embodiments;
Embodiment
Shown in Fig. 1 to 6, double pump formula pumping plant described in the utility model comprises base support 3, constant pressure variable displacement pump assembly 1, auxiliary metering pump assembly 2, scaffold 4, ejector valve, oil-way system, programmable controller 5 and system pressure sensor 6.
Further, described constant pressure variable displacement pump assembly 1 comprises constant-pressure variable pump motor 11, constant pressure variable displacement pump joiner 12 and constant pressure variable displacement pump 13, and constant pressure variable displacement pump assembly 1 is installed on the base support 3.Described auxiliary metering pump assembly 2 comprises auxiliary metering pump motor 21, auxiliary metering pump joiner 22, auxiliary metering pump 23, and the outlet port of described metering pump 23 is provided with valve piece 24, and described valve piece 24 is provided with electromagnetic relief valve 25.Above-mentioned scaffold 4 is set up on the constant pressure variable displacement pump assembly 1 and is fixedly mounted on the base support 3, and auxiliary metering pump assembly 2 is installed on this scaffold 4.Further, outlet parallel connection in ejector valve of auxiliary metering pump assembly 2 outlets and variable displacement pump assembly 1 can realize auxiliary metering pump and constant-pressure variable parallel connection of pumps interflow work.
As shown in Figure 6, above-mentioned constant pressure variable displacement pump assembly 1, auxiliary metering pump assembly 2, electromagnetic relief valve 25 and system pressure sensor 6 electrically connect with programmable controller 5.Emission is carried out signal to auxiliary metering pump assembly 2 and electromagnetic relief valve 25 behind the testing signal of programmable controller 5 receiving system pressure transducers 6.
Double pump formula pumping plant of the present utility model is applied to the fully automatic hydraulic ceramic brick press, energy-saving and cost-reducing for realizing the fully automatic hydraulic ceramic brick press, prolong service life of equipment, minimizing equipment operation maintenance cost, the utility model is designed to the double pump formula pumping plant based on Controlled by Programmable Controller, it adopts modular design, change to system pressure by the system pressure sensor, judge whether to need to start auxiliary metering pump running program, when system pressure drops to when the lowest limit is set, turn-off electromagnetic relief valve, start auxiliary metering pump running program, the stable of system pressure kept in the oil consumption of fuel feeding deposit fast, and auxiliary metering pump does not participate in work in the pressure normal range (NR), just do not need acting yet, thereby reach energy-conservation purpose.
Double-pump type pumping plant of the present utility model has the following advantages:
1) structure uniqueness: the constant displacement pump combination places on the variable pump combination;
2) being convenient to dismounting safeguards: the constant displacement pump combination is relatively independent with the variable pump combination, passes through screw attachment;
3) double pump outlet interflow: the constant displacement pump outlet connects a valve piece, and an electromagnetic relief valve is housed on the valve piece:
When 1. needing to collaborate, the outside control mouth of electromagnetic relief valve is closed, and auxiliary constant displacement pump and constant-pressure variable delivery side of pump interflow are to system's fuel feeding;
2. in the time of need not collaborating, the outside control mouth of electromagnetic relief valve is opened, auxiliary constant displacement pump off-load, and constant pressure variable displacement pump is separately to system's fuel feeding.
Claims (3)
1. a double pump formula pumping plant comprises base support, constant pressure variable displacement pump assembly and ejector valve, it is characterized in that, also comprises:
Auxiliary metering pump assembly, its with the constant pressure variable displacement pump assembly in ejector valve also combined stream connect;
The valve piece, it is located at the outlet of this auxiliary metering pump assembly;
Electromagnetic relief valve, it is located on the valve piece;
Programmable controller, itself and constant pressure variable displacement pump assembly, auxiliary metering pump assembly and electromagnetic relief valve electrically connect; And
The system pressure sensor, itself and programmable controller electrically connect;
Emission is carried out signal to auxiliary metering pump assembly and electromagnetic relief valve behind the testing signal of programmable controller receiving system pressure transducer.
2. double pump formula pumping plant according to claim 1 is characterized in that: described auxiliary metering pump assembly comprises auxiliary metering pump motor, auxiliary metering pump joiner and auxiliary metering pump.
3. double pump formula pumping plant according to claim 1 and 2 is characterized in that: describedly state auxiliary metering pump assembly and be installed in one and be set up in scaffold on the constant variable displacement pump assembly, this scaffold is fixedly mounted on the base support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202041836U CN201747555U (en) | 2010-05-18 | 2010-05-18 | Double-pump type pumping plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202041836U CN201747555U (en) | 2010-05-18 | 2010-05-18 | Double-pump type pumping plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201747555U true CN201747555U (en) | 2011-02-16 |
Family
ID=43582234
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202041836U Expired - Fee Related CN201747555U (en) | 2010-05-18 | 2010-05-18 | Double-pump type pumping plant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201747555U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102182725A (en) * | 2011-04-22 | 2011-09-14 | 广东科达机电股份有限公司 | Large step variable control multi-link energy-saving hydraulic pump station |
| CN102305204A (en) * | 2011-08-22 | 2012-01-04 | 广西玉柴重工有限公司 | Rotating speed induction type variable constant flow pump |
| CN103557207A (en) * | 2013-10-25 | 2014-02-05 | 中联重科股份有限公司 | Hydraulic system, pressure control method of hydraulic system, and engineering machine |
| CN105134695A (en) * | 2015-08-26 | 2015-12-09 | 徐工集团工程机械股份有限公司科技分公司 | Electric control opening and closing core hydraulic system and engineering machine |
-
2010
- 2010-05-18 CN CN2010202041836U patent/CN201747555U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102182725A (en) * | 2011-04-22 | 2011-09-14 | 广东科达机电股份有限公司 | Large step variable control multi-link energy-saving hydraulic pump station |
| CN102305204A (en) * | 2011-08-22 | 2012-01-04 | 广西玉柴重工有限公司 | Rotating speed induction type variable constant flow pump |
| CN103557207A (en) * | 2013-10-25 | 2014-02-05 | 中联重科股份有限公司 | Hydraulic system, pressure control method of hydraulic system, and engineering machine |
| CN103557207B (en) * | 2013-10-25 | 2016-01-06 | 中联重科股份有限公司 | A kind of hydraulic system, hydraulic system pressure controlling method and engineering machinery |
| CN105134695A (en) * | 2015-08-26 | 2015-12-09 | 徐工集团工程机械股份有限公司科技分公司 | Electric control opening and closing core hydraulic system and engineering machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110216 Termination date: 20160518 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |