CN204126904U - Vertical antifreeze self-priming reciprocating pump - Google Patents
Vertical antifreeze self-priming reciprocating pump Download PDFInfo
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- CN204126904U CN204126904U CN201420565323.0U CN201420565323U CN204126904U CN 204126904 U CN204126904 U CN 204126904U CN 201420565323 U CN201420565323 U CN 201420565323U CN 204126904 U CN204126904 U CN 204126904U
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Abstract
A kind of vertical antifreeze self-priming reciprocating pump, comprise, support and the support arm cast with synchronous gear box integral type being positioned at frame upper, speed reduction box shaft bearing is disposed with on the top of synchronous gear box, gear box cover, electric machine support and anti-explosion motor, it is characterized in that, the upper end of cavity is provided with upper sealing panel, lower end is provided with lower seal plate, synchronous piston is provided with between upper sealing panel and lower seal plate, two synchronous piston engagement rotation, its external diameter excessively coordinates with cavity, on, the convex edge of lower end surface excessively coordinates with upper sealing panel and lower seal plate respectively, the upper machine envelope rotating ring for sealing pair transmission shaft and synchronizing shaft is respectively arranged with in the upper and lower of synchronous piston, upper machine envelope stationary ring and lower machine envelope rotating ring, lower machine envelope stationary ring, after cavity separate space top explosion-proof tank in be placed with electric heating water circulation device, the utility model has volume little, compact structure, good seal performance, suction capacity is strong, effectively solve a pump housing anti-freezing and heat-insulating difficult problem.
Description
Technical field
The utility model relates to-kind of reciprocating pump, particularly-kind of vertical antifreeze self-priming reciprocating pump.
Background technique
In field produces practice, need to be aspirated by the medium such as sump oil, sewage, fall pond, lifting, dispatch, in this process,-as adopt self-priming pump, current known self-priming pump, as Chinese invention patent, the patent No. is: 201210450786. disclose a kind of explosion-proof vertical self-priming pump, comprise anti-explosion motor, motor cabinet, bearing support, casing, pump cover, stator, impeller, main shaft, guide bearing, temperature measurement component, explosion-proof liquid level switch; Wherein anti-explosion motor is arranged on motor cabinet, and bearing support is arranged on casing, and motor shaft is connected with pump main shaft diaphragm coupling.Main shaft is provided with metal bearing, machine envelope, impeller, guide bearing axle sleeve, guide bearing and impeller nut from top to bottom successively.Its drawback is, suction capacity is poor, pump efficiency is low, and when carrying the liquid containing impurity, return port very easily blocks, and loses suction capacity.First time needs pump priming when opening pump, could self-priming.When second time opens pump, although without pump priming, residual medium has leakage and evaporation, still needs fluid infusion just can open pump imbibition.This pump does not possess anti-freezing and heat-insulating function, and in actual production process, due to working condition requirement, a lot of pump is usually arranged on outdoor.In the north, when temperature is on the low side, usually cause pump case bursting by freezing.There is no bursting by freezing, normally cannot open yet, often need to use hot steam pipeline purging, could open, both cause damage to country, affect the continuity of work yet.
Existing thermal insulation pump, have in pump housing outer felt around heat preserving and insulating material, but heat insulation effect is bad; The arranged outside heat preservation sandwich layer of the ingress at the pump housing had, have ignored the insulation of waterexit end, pump cover, machine sealing position.Still cannot normally run.As Chinese invention patent, the patent No. is 201310600071.0 disclose-kind of full jacket heat-preservation pump, pump water inlet end, waterexit end pump case, pump cover and sealing gland place are provided with folder chamber, pass into liquid heat medium or hot steam, to contact with fed sheet of a media or the fed sheet of a media place of leaving over carries out nothing and omits and be incubated comprehensively the pump housing is all, its drawback is, this pump must have heat-mixing pipe to provide thermal source from outside.No matter be that local arranges heat preservation sandwich layer, or full interlayer, be all consider insulation in the outside at contact medium position, all need outer portion to provide thermal source, also need to arrange heat-mixing pipe and be connected with the pump housing and meet and discuss, insulation could be realized, if scene does not possess external heat source medium, pump housing insulation then cannot realize.
Summary of the invention
For the deficiency that above-mentioned technical problem exists, the purpose of this utility model is to provide-kind of vertical antifreeze self-priming reciprocating pump.
-kind of vertical antifreeze self-priming reciprocating pump, comprise, support (12) and the support arm (50) cast with synchronous gear box (4) integral type being positioned at support (12) top, speed reduction box shaft bearing (3) is disposed with on the top of synchronous gear box (4), gear box cover (51), electric machine support (2) and anti-explosion motor (1), it is characterized in that, the bottom of synchronous gear box (4) is provided with cavity (5), the upper end of cavity (5) is provided with upper sealing panel (20), lower end is provided with lower seal plate (25), synchronous piston (23) is provided with between upper sealing panel (20) and lower seal plate (25), two synchronous piston (23) engagement rotation, its external diameter excessively coordinates with cavity (5), on two synchronous pistons (23), the convex edge of lower end surface excessively coordinates with upper sealing panel (20) and lower seal plate (25) respectively, upper machine envelope rotating ring (22) for sealing pair transmission shaft (16) and synchronizing shaft (17) is respectively arranged with in the upper and lower of synchronous piston (23), upper machine envelope stationary ring (19) and lower machine envelope rotating ring (24), lower machine envelope stationary ring (26), counter drive shaft (16) and synchronizing shaft (17) run through synchromesh gear (18) and synchronous piston (23), be connected with synchromesh gear (18) and synchronous piston (23) key respectively, the front end of cavity (5) is provided with fore-clamp chamber (11), rear end is provided with rear separate space (10), cavity runner (52) is provided with in the import and export of cavity (5), its cavity runner (52) and fore-clamp chamber (11) and rear separate space (10) is through is connected, the fixed plate (49) for installing explosion-proof tank (9) is provided with on the top of rear separate space (10), electric heating water circulation device (31) is placed with in explosion-proof tank (9), silicagel pad is filled with in cavity between its explosion-proof tank (9) and electric heating water circulation device (31).
Electric heating water circulation device (31) is divided into water tank (44) and electric control box (45) by dividing plate (46), water pump (30) is installed in water tank (44), one end of its water pump (30) is provided with Discharging bent-tube (28), Discharging bent-tube (28) is provided with water output connector (27), in the water tank (44) of water pump (30) side, be provided with electrical heating rod (38) and temperature controlling instrument (39), in water tank (44), be also provided with floating ball lever meter (40) and filter magnetite (41), water tank (44) top is provided with water filling hole (43), the water tank (44) of water output connector (27) side is provided with backwater joint (42), electric control box (45) is respectively arranged with the water pump display lamp (33) with water pump (30) connection, with electrical heating rod (38) connection add thermal display light (34), with the level indicator (35) of floating ball lever meter (40) connection, water pump (30), electrical heating rod (38), temperature controlling instrument (39), floating ball lever meter (40) is connected with switch (36) respectively by circuit, switch (36) is connected by connection power interface (37).
Described water output connector (27) is connected by the water output connector of pipeline with rear separate space (10), and backwater joint (42) is connected by the backwater joint of pipeline with rear separate space (10).
The Import & Export Department at described cavity (5) two ends has been bolted flange B (48), is provided with imports and exports bend pipe (47) at the two ends of flange B (48).
Described upper machine envelope rotating ring (22) is inlayed in the seam of rotating ring adjusting nut (21), its rotating ring adjusting nut (21) and counter drive shaft (16) and synchronizing shaft (17) screwed connection.
The upper end of described upper machine envelope stationary ring (19) and upper machine envelope rotating ring (22) is pushed up with cavity (5) and is connected, in the hole of lower end embedding upper sealing panel (20).
Described lower machine envelope rotating ring (24) is embedded in the seam of synchronous piston (23), and the lower end of lower machine envelope stationary ring (26) embeds in the seam of cavity bearing support (6).
It is-body formula structure that main drive shaft (13) and the bottom of anti-explosion motor (1) are provided with small gear (14), the gearwheel (15) that small gear (14) and side are arranged is connected with a joggle, and its gearwheel (15) is connected with counter drive shaft (16) key.
The locking nut (29) for locking gearwheel (15) is provided with on the top of counter drive shaft (16).
Described synchronous piston (23) adopts rubber material to be made.
The utility model has volume little, and compact structure is applied widely, can use in particular circumstances, good seal performance, and suction capacity is strong, and suction lift can reach 8 meters, and vertical suction lift can reach 5 meters, shortens and opens pump self-priming time, opens pump self-priming time and is not more than 10 seconds.Improve pump efficiency, up to 65%-95% in operating range, import and outlet adopt symmetric design, can exchange.Can no-load running more than 15 minutes, widen the conveying scope of medium, realized the conveying of gas, liquid, solid mixed medium, more can play its speciality at transfer of highly viscous and the high medium of solid content especially.Operate steadily, pulse is little, is applicable to conveying shearing sensibility fluid.Set up explosion-proof electric heating water circulation device, realized pump self and generate heat medium, independent loops thermal insulation pump cavity.Effectively solve a pump housing anti-freezing and heat-insulating difficult problem, ensure the continuity of pump work.
Accompanying drawing explanation
Fig. 1 is perspective view of the present utility model;
Fig. 2 is the main TV structure schematic diagram of Fig. 1;
Fig. 3 is that sectional structure schematic diagram is looked on the right side after Fig. 2 removes anti-explosion motor (1);
Fig. 4 is the structural representation of electric heating water circulation device of the present utility model (31).
In figure: anti-explosion motor 1, electric machine support 2, speed reduction box shaft bearing 3, synchronous gear box 4, cavity 5, cavity bearing support 6, bearing cover 7, flange A8, explosion-proof tank 9, rear separate space 10, fore-clamp chamber 11, support 12, main drive shaft 13, small gear 14, gearwheel 15, counter drive shaft 16, synchronizing shaft 17, synchromesh gear 18, upper machine envelope stationary ring 19, upper sealing panel 20, rotating ring adjusting nut 21, upper machine envelope rotating ring 22, synchronous piston 23, lower machine envelope rotating ring 24, lower seal plate 25, lower machine envelope stationary ring 26, water output connector 27, outlet pipe 28, locking nut 29, water pump 30, electric heating water circulation device 31, fastening foot 32, water pump display lamp 33, add thermal display light 34, level indicator 35, switch 36, power interface 37, electrical heating rod 38, temperature controlling instrument 39, floating ball lever meter 40, filter magnetite 41, backwater joint 42, water filling hole 43, water tank 44, electric control box 45, dividing plate 46, import and export bend pipe 47, flange B48, fixed plate 49, support arm 50, gear box cover 51, cavity runner 52, coupling A53, coupling B54.
Embodiment
As shown in Figure 1 and Figure 2, support arm 50 has been bolted on the top of support 12, its support arm 50 is integral type cast structure with synchronous gear box 4, it is inner that described synchronous gear box 4 is placed in support 12, speed reduction box shaft bearing 3 has been bolted on the top of synchronous gear box 4, gear box cover 51 bolt that its speed reduction box shaft bearing 3 and top are arranged is connected, and gear box cover 51 and electric machine support 2 are-body formula cast structure, and electric machine support 2 is mounted with anti-explosion motor 1 by bolt.The bottom of synchronous gear box 4 is provided with cavity 5, the synchronous gear box 4 that described cavity 5 and top are arranged and cavity bearing support 6 bolt that bottom is arranged are connected, the bottom of cavity bearing support 6 is provided with bearing cover 7, be bolted flange B48 in the Import & Export Department at cavity 5 two ends, in the import and export end face of described cavity 5, be provided with cavity runner 52.The flange A8 that flange B48 and another end arrange that arranges importing and exporting bend pipe 47 and one end is welded as-body.One of them flange A8 and inlet line Flange joint, another flange A8 and outlet line Flange joint.The front end of cavity 5 is provided with fore-clamp chamber 11; Rear end is provided with rear separate space 10, its cavity runner 52 and fore-clamp chamber 11 and rear separate space 10 is through is connected.The top of rear separate space 10 is provided with fixed plate 49, and its fixed plate 49 is connected with support 12 by bolt, is provided with explosion-proof tank 9 on the top of fixed plate 49.
As shown in Figure 2 and Figure 3, the coupling A53 of the anti-explosion motor 1 and coupling B54 of main drive shaft 13 is connected with a joggle.Described anti-explosion motor 1 and coupling A53 are that key is connected, and main drive shaft 13 and coupling B54 are that key is connected.Main drive shaft 13 is through in gear box cover 51, the bottom of its main drive shaft 13 is provided with small gear 14, described main drive shaft 13 is integral type structure with small gear 14, the gearwheel 15 that small gear 14 and side are arranged is connected with a joggle, its gearwheel 15 is connected with counter drive shaft 16 key, is provided with the locking nut 29 for locking gearwheel 15 on the top of counter drive shaft 16.Counter drive shaft 16 and synchronizing shaft 17 run through in the synchromesh gear 18 that is arranged in synchronous gear box 4 respectively, after two synchromesh gears 18 are connected with a joggle, be connected with counter drive shaft 16 and synchronizing shaft 17 key respectively, its counter drive shaft 16 and synchronizing shaft 17 are placed in speed reduction box shaft bearing 3, in cavity that synchronous gear box 4, cavity 5, cavity bearing support 6 are formed after being connected successively.The counter drive shaft 16 and synchronizing shaft 17 of cavity 5 are respectively installed with machine envelope stationary ring 19 and upper machine envelope rotating ring 22, on it, machine envelope rotating ring 22 is arranged on the bottom of machine envelope stationary ring 19 and inlays in the seam of rotating ring adjusting nut 21, described rotating ring adjusting nut 21 and counter drive shaft 16 and synchronizing shaft 17 screwed connection.Its rotating ring adjusting nut 21 is used for regulating machine to seal the position of rotating ring 22.The upper end of cavity 5 is provided with upper sealing panel 20, and lower end is provided with lower seal plate 25, is provided with synchronous piston 23 between upper sealing panel 20 and lower seal plate 25.The upper end of upper machine envelope stationary ring 19 and upper machine envelope rotating ring 22 is pushed up with cavity 5 and is connected, in the hole of lower end embedding upper sealing panel 20.Two synchronous pistons 23 are set on counter drive shaft 16 and synchronizing shaft 17, are connected with counter drive shaft 16 and synchronizing shaft 17 key.Two described synchronous piston 23 engagement rotation, the external diameter of two synchronous pistons 23 excessively coordinates with cavity 5.The counter drive shaft 16 and synchronizing shaft 17 of cavity bearing support 6 are respectively installed with lower machine envelope rotating ring 24 and lower machine envelope stationary ring 26, its lower machine envelope stationary ring 26 is arranged on the bottom of lower machine envelope rotating ring 24, lower machine envelope rotating ring 24 is embedded in the seam of synchronous piston 23, and the lower end of lower machine envelope stationary ring 26 embeds in the seam of cavity bearing support 6.
As shown in Figure 4, in explosion-proof tank 9, be placed with electric heating water circulation device 31, be filled with silicagel pad in the cavity between its explosion-proof tank 9 and electric heating water circulation device 31, and with bolt, explosion-proof tank 9 be connected with electric heating water circulation device 31.By dividing plate 46, electric heating water circulation device 31 is divided into water tank 44 and electric control box 45.In water tank 44, be provided with water pump 30, its water pump 30 one end is provided with Discharging bent-tube 28, and Discharging bent-tube 28 sets out water swivel 27.In the water tank 44 of water pump 30 side, be provided with electrical heating rod 38 and temperature controlling instrument 39.In water tank 44, be also provided with floating ball lever meter 40 and filter magnetite 41, the top of water tank 44 is provided with water filling hole 43.The water tank 44 of water output connector 27 side is provided with backwater joint 42, and the water output connector 27 of described water tank 44 is connected by pipeline with the water output connector of rear separate space 10; The backwater joint 42 of water tank 44 is connected by pipeline with the backwater joint of rear separate space 10.Electric control box 45 with explosion-proof tank 9 is respectively arranged with four corresponding holes, its four holes are used for installing water pump display lamp 33, adding thermal display light 34, level indicator 35 and switch 36 respectively, water pump display lamp 33 and water pump 30 connection, add thermal display light 34 and electrical heating rod 38 connection, level indicator 35 and floating ball lever meter 40 connection.Water pump 30, electrical heating rod 38, temperature controlling instrument 39, floating ball lever meter 40 are connected with switch 36 respectively by circuit, and switch 36 is connected by connection power interface 37.Bolted fastening foot 32 is provided with fixed plate 49 in the bottom of explosion-proof tank 9.
Described synchronous piston 23 adopts rubber material to be made.
Principle: anti-explosion motor 1 drives main drive shaft 13 by coupling, main drive shaft 13 drives small gear 14 and rotates with the gearwheel 15 that small gear 14 is connected with a joggle, gearwheel 15 drives counter drive shaft 16 to rotate, counter drive shaft 16 drives synchronizing shaft 17 to rotate through one group of synchromesh gear 18, synchronizing shaft 17 drives a pair synchronous piston 23 constantly to do relative motion, synchronous piston 23 coordinates with cavity 5, in its cavity 5, continuous rotary becomes vacuum, medium is constantly sucked in the enclosed cavity of cavity 5 through import, is discharged by outlet.
When pump needs to carry out work in outdoor and temperature is lower, by water filling hole 43, water tank 44 is filled to desired location, switch on power, open switch 36, when electrical heating rod in water tank 44 38 pairs of water are heated to temperature required, add thermal display light 34 and light, is green light.Temperature controlling instrument 39 is used for controlling the temperature of water in water tank 44, and when in water tank 44, water reaches temperature required, electrical heating rod 38 quits work.Level indicator 35 is used for observing the water level of water tank 44.Water pump 30 by water after outlet pipe 28 is expelled in separate space 10, fore-clamp chamber 11 is circulated to through cavity runner 52, by fore-clamp chamber 11 after cavity runner 52 is circulated in separate space 10, return in water tank 44 by rear separate space 10 by backwater joint 42 again, form circulating heat transfer loop, cavity 5 is reached to the effect of circulation insulation.
Claims (10)
1. a vertical antifreeze self-priming reciprocating pump, comprise, support (12) and the support arm (50) cast with synchronous gear box (4) integral type being positioned at support (12) top, speed reduction box shaft bearing (3) is disposed with on the top of synchronous gear box (4), gear box cover (51), electric machine support (2) and anti-explosion motor (1), it is characterized in that, the bottom of synchronous gear box (4) is provided with cavity (5), the upper end of cavity (5) is provided with upper sealing panel (20), lower end is provided with lower seal plate (25), synchronous piston (23) is provided with between upper sealing panel (20) and lower seal plate (25), two synchronous piston (23) engagement rotation, its external diameter excessively coordinates with cavity (5), on two synchronous pistons (23), the convex edge of lower end surface excessively coordinates with upper sealing panel (20) and lower seal plate (25) respectively, upper machine envelope rotating ring (22) for sealing pair transmission shaft (16) and synchronizing shaft (17) is respectively arranged with in the upper and lower of synchronous piston (23), upper machine envelope stationary ring (19) and lower machine envelope rotating ring (24), lower machine envelope stationary ring (26), counter drive shaft (16) and synchronizing shaft (17) run through synchromesh gear (18) and synchronous piston (23), be connected with synchromesh gear (18) and synchronous piston (23) key respectively, the front end of cavity (5) is provided with fore-clamp chamber (11), rear end is provided with rear separate space (10), cavity runner (52) is provided with in the import and export of cavity (5), its cavity runner (52) and fore-clamp chamber (11) and rear separate space (10) is through is connected, the fixed plate (49) for installing explosion-proof tank (9) is provided with on the top of rear separate space (10), electric heating water circulation device (31) is placed with in explosion-proof tank (9), silicagel pad is filled with in cavity between its explosion-proof tank (9) and electric heating water circulation device (31).
2. a kind of vertical antifreeze self-priming reciprocating pump according to claim 1, it is characterized in that: electric heating water circulation device (31) is divided into water tank (44) and electric control box (45) by dividing plate (46), water pump (30) is installed in water tank (44), one end of its water pump (30) is provided with Discharging bent-tube (28), Discharging bent-tube (28) is provided with water output connector (27), in the water tank (44) of water pump (30) side, be provided with electrical heating rod (38) and temperature controlling instrument (39), in water tank (44), be also provided with floating ball lever meter (40) and filter magnetite (41), water tank (44) top is provided with water filling hole (43), the water tank (44) of water output connector (27) side is provided with backwater joint (42), electric control box (45) is respectively arranged with the water pump display lamp (33) with water pump (30) connection, with electrical heating rod (38) connection add thermal display light (34), with the level indicator (35) of floating ball lever meter (40) connection, water pump (30), electrical heating rod (38), temperature controlling instrument (39), floating ball lever meter (40) is connected with switch (36) respectively by circuit, switch (36) is connected by connection power interface (37).
3. a kind of vertical antifreeze self-priming reciprocating pump according to claim 2, it is characterized in that: described water output connector (27) is connected by the water output connector of pipeline with rear separate space (10), backwater joint (42) is connected by the backwater joint of pipeline with rear separate space (10).
4. a kind of vertical antifreeze self-priming reciprocating pump according to claim 1, it is characterized in that: the Import & Export Department at described cavity (5) two ends has been bolted flange B (48), be provided with at the two ends of flange B (48) and import and export bend pipe (47).
5. a kind of vertical antifreeze self-priming reciprocating pump according to claim 1, it is characterized in that: described upper machine envelope rotating ring (22) is inlayed in the seam of rotating ring adjusting nut (21), its rotating ring adjusting nut (21) and counter drive shaft (16) and synchronizing shaft (17) screwed connection.
6. a kind of vertical antifreeze self-priming reciprocating pump according to claim 1, it is characterized in that: the upper end of described upper machine envelope stationary ring (19) and upper machine envelope rotating ring (22) is pushed up with cavity (5) and is connected, in the hole of lower end embedding upper sealing panel (20).
7. a kind of vertical antifreeze self-priming reciprocating pump according to claim 1, it is characterized in that: described lower machine envelope rotating ring (24) is embedded in the seam of synchronous piston (23), and the lower end of lower machine envelope stationary ring (26) embeds in the seam of cavity bearing support (6).
8. a kind of vertical antifreeze self-priming reciprocating pump according to claim 1, it is characterized in that: main drive shaft (13) and the bottom of anti-explosion motor (1) are provided with small gear (14) for integral type structure, the gearwheel (15) that small gear (14) and side are arranged is connected with a joggle, and its gearwheel (15) is connected with counter drive shaft (16) key.
9. a kind of vertical antifreeze self-priming reciprocating pump according to claim 8, is characterized in that: be provided with the locking nut (29) for locking gearwheel (15) on the top of counter drive shaft (16).
10. a kind of vertical antifreeze self-priming reciprocating pump according to claim 1, is characterized in that: described synchronous piston (23) adopts rubber material to be made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420565323.0U CN204126904U (en) | 2014-09-29 | 2014-09-29 | Vertical antifreeze self-priming reciprocating pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420565323.0U CN204126904U (en) | 2014-09-29 | 2014-09-29 | Vertical antifreeze self-priming reciprocating pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204126904U true CN204126904U (en) | 2015-01-28 |
Family
ID=52383264
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420565323.0U Withdrawn - After Issue CN204126904U (en) | 2014-09-29 | 2014-09-29 | Vertical antifreeze self-priming reciprocating pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204126904U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104405643A (en) * | 2014-09-29 | 2015-03-11 | 任丘市本溪石油设备有限公司 | Vertical anti-freezing self-priming piston pump |
| CN107035723A (en) * | 2017-05-23 | 2017-08-11 | 李培培 | It is a kind of that firm vertical pipeline mounted pump is installed |
| CN107676630A (en) * | 2017-11-14 | 2018-02-09 | 任丘市本溪石油设备有限公司 | A kind of reciprocal apparatus for pressurizing gas, liquid of digital controlled linear |
-
2014
- 2014-09-29 CN CN201420565323.0U patent/CN204126904U/en not_active Withdrawn - After Issue
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104405643A (en) * | 2014-09-29 | 2015-03-11 | 任丘市本溪石油设备有限公司 | Vertical anti-freezing self-priming piston pump |
| CN104405643B (en) * | 2014-09-29 | 2017-09-05 | 任丘市本溪石油设备有限公司 | Vertical antifreeze self-priming piston pump |
| CN107035723A (en) * | 2017-05-23 | 2017-08-11 | 李培培 | It is a kind of that firm vertical pipeline mounted pump is installed |
| CN107035723B (en) * | 2017-05-23 | 2019-01-22 | 张素平 | A kind of vertical pipeline mounted pump that installation is firm |
| CN107676630A (en) * | 2017-11-14 | 2018-02-09 | 任丘市本溪石油设备有限公司 | A kind of reciprocal apparatus for pressurizing gas, liquid of digital controlled linear |
| CN107676630B (en) * | 2017-11-14 | 2023-10-10 | 任丘市本溪石油设备有限公司 | Numerical control linear reciprocating gas-liquid supercharging device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150128 Effective date of abandoning: 20170905 |