CN204357653U - Secondary pressure measurement pump - Google Patents
Secondary pressure measurement pump Download PDFInfo
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- CN204357653U CN204357653U CN201420784023.1U CN201420784023U CN204357653U CN 204357653 U CN204357653 U CN 204357653U CN 201420784023 U CN201420784023 U CN 201420784023U CN 204357653 U CN204357653 U CN 204357653U
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- cylinder
- pressure measurement
- measurement pump
- secondary pressure
- cooling passage
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Abstract
The utility model discloses a kind of secondary pressure measurement pump, comprise one-level cylinder and secondary cylinder, comprise further be sheathed on described secondary cylinder cylinder barrel and cylinder cap outside sleeve, and the inwall of described sleeve offers spiral chute, the outer wall of described spiral chute and described sleeve forms cooling passage, and the liquid outlet of described cooling passage is communicated with liquid outlet with the liquid entering hole of water-filled radiator respectively with liquid entering hole.During the secondary pressure measurement pump that application the utility model provides, owing to having installed water cooling plant outside secondary cylinder additional, when secondary cylinder works, because compression ratio is large, when making its temperature, pressure excessive, by the ringing of cooling liquid, the partial heat of secondary cylinder effectively can be taken away, reduce the temperature of secondary cylinder, thus effectively prevent outlet valve carbon distribution.And then make the using scope of secondary pressure measurement pump for more extensive, only use secondary pressure measurement pump to reach high pressure requirement.
Description
Technical field
The utility model relates to air pump technical field, more particularly, relates to a kind of secondary pressure measurement pump.
Background technique
Air pump, i.e. " air pump ", refer to from an enclosed space deaeration or a kind of device adding air from enclosed space.Air pump is divided into electric air pump and hand air pump, foot-propelled air pump.Wherein, electric air pump, is namely the air pump of power with electric power, refers to not stop pressurized air by electric power, produces air pressure.
As a kind of air pump of common form, the compression of reciprocating air pump to air is many through following two steps: the downward dead-centre motion of piston, and cylinder chamber increases, and in cylinder, air expands, and pressure reduces.Exhaust valve is closed, and intake valve is pushed open by atmospheric pressure, and air flows to cylinder, air-breathing.Piston upwards dead-centre motion time, cylinder chamber reduce, IC Intake Valve Closes, in cylinder, air is compressed, pressure increase.Exhaust valve is pushed open by gas in the jar, and pressurized air flows to gas holder.
Multistage air pump generally refers to that multiple air pump reaches the object of boosting through series connection.For secondary pressure measurement pump, generally comprise one-level cylinder and secondary cylinder, and the structure such as discharge filter, pressure gauge and controller.The limited pressure that general secondary pressure measurement pump can reach, when reaching the pressure being greater than about 35MPa, often needs through at least three grades of air pumps.Namely the pressurization through at least three cylinders reaches above-mentioned pressure.If consider the factors such as cost-saving, adopt secondary pressure measurement pump to reach above-mentioned pressure, the compression ratio of secondary high-pressure pump will reach 1:30, far more than the 1:7 of three grades of air pumps.Thus the high temperature and high pressure environment in secondary pressure measurement pump is caused.On the one hand, High Temperature High Pressure easily causes the piston ring life-span shorter; On the other hand, high temperature and high pressure environment makes carbon distributionization serious.Thus, for high pressure requirement, secondary pressure measurement pump is limited to high temperature and high pressure environment, has a strong impact on its development.
In sum, the carbon distributionization that in the secondary cylinder how effectively solving secondary pressure measurement pump, temperature, pressure causes greatly is serious, secondary pressure measurement pump uses the problems such as limited, is current those skilled in the art's urgent problem.
Model utility content
In view of this, the purpose of this utility model is to provide a kind of secondary pressure measurement pump, and this secondary pressure measurement pump can solve that carbon distributionization that in secondary cylinder, temperature, pressure causes greatly is serious, secondary pressure measurement pump uses limited problem effectively.
In order to achieve the above object, the utility model provides following technological scheme:
A kind of secondary pressure measurement pump, comprise one-level cylinder and secondary cylinder, comprise further be sheathed on described secondary cylinder cylinder barrel and cylinder cap outside sleeve, and described sleeve lining offers spiral chute, the outer wall of described spiral chute and described sleeve forms cooling passage, the liquid outlet of described cooling passage is communicated with the liquid entering hole of water-filled radiator, and the liquid entering hole of described cooling passage is communicated with the liquid outlet of described water-filled radiator.
Preferably, in above-mentioned secondary pressure measurement pump, the liquid outlet of described cooling passage and liquid entering hole are arranged at described cylinder cap place.
Preferably, in above-mentioned secondary pressure measurement pump, the liquid outlet of described cooling passage and liquid entering hole arrange along the radial direction of described secondary cylinder.
Preferably, in above-mentioned secondary pressure measurement pump, the plunger rod of described secondary cylinder offers the groove of annular.
Preferably, in above-mentioned secondary pressure measurement pump, the alloy column stopper rod of the plunger rod of described secondary cylinder to be hardness be HRA95.
Preferably, in above-mentioned secondary pressure measurement pump, described secondary cylinder is selflubricating powder metallurgy cylinder.
The secondary pressure measurement pump that the utility model provides comprises one-level cylinder and secondary cylinder, comprise further be sheathed on secondary cylinder cylinder barrel and cylinder cap outside sleeve.The inwall of sleeve offers spiral chute, and the outer wall of spiral chute and sleeve forms cooling passage, and the liquid outlet of cooling passage is communicated with liquid outlet with the liquid entering hole of water-filled radiator respectively with liquid entering hole, forms the circulation loop of cooling liquid.
During the secondary pressure measurement pump that application the utility model provides, owing to having installed water cooling plant outside secondary cylinder additional, when secondary cylinder works because compression ratio makes greatly its temperature, pressure excessive, by the ringing of cooling liquid, effectively can take away the partial heat of secondary cylinder, reduce the temperature of secondary cylinder, thus effectively prevent outlet valve carbon distribution.And then make the using scope of secondary pressure measurement pump for more extensive, only use secondary pressure measurement pump to reach high pressure requirement.
Meanwhile, during the secondary pressure measurement pump that application the utility model provides, the taste that gas does not have machine oil to burn yet is got rid of, more environmental protection.
In a preferred embodiment, the secondary pressure measurement pump that the utility model provides, the plunger rod of its secondary cylinder offers the groove of annular.And the plunger rod of this secondary cylinder is hardness is the alloy column stopper rod of HRA95.Secondary cylinder is selflubricating powder metallurgy cylinder.By above-mentioned setting, the matching gap of cylinder and plunger rod can reach only 0.002mm, and piston structure is more accurate.And replace piston ring structure with decompressing groove, avoid in the short impact caused secondary pressure measurement pump working life etc. of high-temperature and high-pressure conditions lower piston ring life-span.Thus effectively extend the working life of secondary pressure measurement pump, improve its accuracy.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technological scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
The structural representation of a kind of embodiment of secondary pressure measurement pump that Fig. 1 provides for the utility model;
Fig. 2 is the schematic rear view of Fig. 1;
Fig. 3 is the structural representation of the secondary cylinder of the secondary pressure measurement pump shown in Fig. 1.
In accompanying drawing, mark is as follows:
One-level air inlet 1, total casing 2, one-level exhaust 3, secondary inlet 4, secondary cylinder 5, electric control box 6, motor 7, frame 8, power line 9, discharge filter 10, pressure gauge 11, water-filled radiator 12, water-cooled backwater 13, one-level cylinder 14, secondary exhaust 15, belt 16, plunger Crux 51, plunger pin 52, plunger rod 53.
Embodiment
The utility model embodiment discloses a kind of secondary pressure measurement pump, and to avoid the carbon distributionization that in secondary cylinder, temperature, pressure causes greatly serious, and then it is limited that secondary pressure measurement pump is used.
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technological scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Refer to Fig. 1 and Fig. 2, the structural representation of a kind of embodiment of secondary pressure measurement pump that Fig. 1 provides for the utility model; Fig. 2 is the schematic rear view of Fig. 1.
In a kind of embodiment, the secondary pressure measurement pump that the utility model provides comprises one-level cylinder 14 and secondary cylinder 5, one-level cylinder 14 comprises one-level air inlet 1 and one-level exhaust 3, the secondary inlet 4 of secondary cylinder 5 is vented 3 with the one-level of one-level cylinder 14 and is connected, and pressurized gas is communicated with external equipment etc. by secondary exhaust 15.Electric control box 6 is for controlling unlatching or the stopping of air pump.Electric control box 6 is connected with external power by power line 9.The structure of the frame 8 of secondary pressure measurement pump, motor 7, belt 16, discharge filter 10 and pressure gauge 11 etc. and annexation, please refer to prior art, repeat no more herein.
For lowering the temperature to secondary cylinder, the secondary pressure measurement pump that the utility model provides also comprise be sheathed on secondary cylinder 5 cylinder barrel and cylinder cap outside sleeve.General, the internal diameter of secondary cylinder 5 is about 9.55mm, and the external diameter of sleeve is about 60mm.The inwall of sleeve offers spiral chute, and the spiral fluted degree of depth is comparatively dark, makes the distance of the casing wall of groove bottom and secondary cylinder 5 less, is convenient to carry out exchange heat with cooling liquid.The outer wall of spiral chute and sleeve forms cooling passage.The liquid outlet of cooling passage is communicated with liquid outlet with the liquid entering hole of water-filled radiator 12 respectively with liquid entering hole, forms the circulation loop of cooling liquid.After cooling liquid pumps into cooling passage by the liquid entering hole of cooling passage, can flow along spiral chute, exchange heat can be carried out with secondary cylinder 5 in flow process, and then reduce the temperature of secondary cylinder 5, cooling liquid after temperature raises flows out through liquid outlet and enters water-filled radiator 12, and the water-cooled backwater 13 after its cooling down effect again circulates and enters cooling passage is that secondary cylinder 5 is lowered the temperature.It is pointed out that the external diameter of sleeve also can be arranged according to situations such as the temperature of secondary cylinder 5, be not specifically limited here.The corresponding spiral fluted degree of depth, width etc. also can be arranged according to the situation of secondary cylinder 5 accordingly, when only cooling liquid need be enable wherein to flow fully and secondary cylinder 5 carry out exchange heat.
Apply above-mentioned water cooling plant, the temperature of secondary cylinder 5 can be effectively reduced, and then effectively reduce its carbon distribution.
Further, in above-mentioned secondary pressure measurement pump, the liquid outlet of cooling passage and liquid entering hole can be arranged at the cylinder cap position of secondary cylinder 5.Liquid entering hole and liquid outlet are offered in the position being namely positioned at cylinder cap place at sleeve, and general, liquid entering hole and liquid outlet can be arranged along the radial direction of secondary cylinder 5.Certainly, according to the facilities etc. of cooling passage, above-mentioned liquid entering hole and liquid outlet also can be set to other positions, only need to be communicated with cooling passage, and meet cooling liquid flow circuit wherein.
Refer to Fig. 3, Fig. 3 is the structural representation of the secondary cylinder of the secondary pressure measurement pump shown in Fig. 1.Plunger rod 53 is fixedly connected with plunger Crux 51 by plunger pin 52.Due to the high temperature and high pressure environment in secondary cylinder 5, cause the piston ring life-span shorter, thus, the plunger rod 53 of secondary cylinder 5 can be offered further the groove of annular.Annular herein refers to that groove is that the periphery of plunger rod 53 is provided with a circle.Concrete, the position of groove corresponds to the position of piston ring, by the setting of groove, replaces piston ring of the prior art, and then avoids piston ring and run on equipment the impact caused by High Temperature High Pressure damage.The quantity of groove can be set to multiple.
Further, be improve the accuracy of plunger, in above-mentioned secondary pressure measurement pump, the plunger rod 53 of secondary cylinder 5 can be the alloy column stopper rod of HRA95 for hardness.Concrete, the cemented carbide of YL10.2 can be adopted.Secondary cylinder 5 also can be selflubricating powder metallurgy cylinder.There is anti-high pressure, high wear resistance, and can self-alignment.The matching gap of plunger rod and cylinder can reach 0.002mm.Certainly, traditional plunger rod or cylinder is adopted also can to meet the demand of above-mentioned secondary pressure measurement pump to a certain extent.
In this specification, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar portion mutually see.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the utility model.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein when not departing from spirit or scope of the present utility model, can realize in other embodiments.Therefore, the utility model can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (6)
1. a secondary pressure measurement pump, comprise one-level cylinder and secondary cylinder, it is characterized in that, comprise further be sheathed on described secondary cylinder cylinder barrel and cylinder cap outside sleeve, and the inwall of described sleeve offers spiral chute, the outer wall of described spiral chute and described sleeve forms cooling passage, and the liquid outlet of described cooling passage is communicated with the liquid entering hole of water-filled radiator, and the liquid entering hole of described cooling passage is communicated with the liquid outlet of described water-filled radiator.
2. secondary pressure measurement pump according to claim 1, is characterized in that, the liquid outlet of described cooling passage and liquid entering hole are arranged at described cylinder cap place.
3. secondary pressure measurement pump according to claim 2, is characterized in that, the liquid outlet of described cooling passage and liquid entering hole arrange along the radial direction of described secondary cylinder.
4. the secondary pressure measurement pump according to any one of claim 1-3, is characterized in that, the plunger rod of described secondary cylinder offers the groove of annular.
5. secondary pressure measurement pump according to claim 4, is characterized in that, the alloy column stopper rod of the plunger rod of described secondary cylinder to be hardness be HRA95.
6. secondary pressure measurement pump according to claim 5, is characterized in that, described secondary cylinder is selflubricating powder metallurgy cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420784023.1U CN204357653U (en) | 2014-12-12 | 2014-12-12 | Secondary pressure measurement pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420784023.1U CN204357653U (en) | 2014-12-12 | 2014-12-12 | Secondary pressure measurement pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204357653U true CN204357653U (en) | 2015-05-27 |
Family
ID=53259127
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420784023.1U Expired - Fee Related CN204357653U (en) | 2014-12-12 | 2014-12-12 | Secondary pressure measurement pump |
Country Status (1)
| Country | Link |
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| CN (1) | CN204357653U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104564616A (en) * | 2014-12-12 | 2015-04-29 | 重庆灵活机械制造有限责任公司 | Two-stage compression air pump |
-
2014
- 2014-12-12 CN CN201420784023.1U patent/CN204357653U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104564616A (en) * | 2014-12-12 | 2015-04-29 | 重庆灵活机械制造有限责任公司 | Two-stage compression air pump |
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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: 20150527 Termination date: 20161212 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |