Plunger pump aging test device

Abstract

The utility model relates to an aging test device for a plunger pump. The device comprises a liquid supply area located on one side of a base and a testing area formed by the remaining part of the base, a plurality of plunger pump vacancies are arranged on the testing area, and a plunger pump to be tested is correspondingly fixed to each plunger pump vacancy; the aging test device for the plunger pump further comprises a plurality of test plates which are placed in a stacked mode, and the test plates are provided with a plurality of plunger pump vacancies. Therefore, the testing device can test a plurality of plunger pumps at the same time, and the expansibility of the testing device is very high. And secondly, due to the design of the testing device with a multi-layer structure, the plunger pumps with different sizes and different specifications can be matched, and the testing requirements of the plunger pumps with different types can be met.

Description

Technical Field

[0001] The utility model relates to the technical field of plunger pump testing, in particular to an aging testing device for a plunger pump. Background Art

[0002] A plunger pump is a positive displacement reciprocating pump with adjustable flow both dynamically and statically. It transports fluids through the reciprocating motion of a plunger within a suction chamber. It is widely used in medical devices for fluid delivery, hemodialysis machines, infusion pumps, and drug injection pumps. With advances in medical technology and increasing precision requirements for equipment, medical equipment is placing increasingly stringent demands on pump performance. The reliability and stability of these pumps directly impact patient safety. Therefore, to ensure the safety and stability of plunger pumps in medical equipment, long-term aging testing is essential.

[0003] Aging tests for plunger pumps primarily simulate the operating conditions likely to occur during long-term use, evaluating various pump performance indicators such as flow rate, pressure, accuracy, and durability to predict potential failures and performance degradation. However, existing plunger pump aging test equipment often suffers from limited scalability, a limited number of aging cycles, and the difficulty of immersing the pump in liquid, which can easily damage the equipment. These issues limit the test equipment's scope of application and effectiveness. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a plunger pump aging test device.

[0005] A plunger pump aging test device, comprising:

[0006] A base, comprising a liquid supply area located on one side of the base and a test area formed by the remaining portion of the base, wherein the test area is provided with a plurality of plunger pump vacancies, and each plunger pump vacancies is correspondingly fixed to a plunger pump to be tested;

[0007] a buffer bottle, arranged in the liquid supply area, wherein the buffer bottle is provided with a test liquid for testing, and a third liquid outlet and a third liquid inlet are provided on the bottle mouth or the bottle body;

[0008] a diaphragm pump connected to the third liquid outlet of the buffer bottle to pressurize the test liquid provided by the third liquid outlet;

[0009] The diverter block includes a first liquid inlet, a first liquid outlet, a second liquid inlet, and a second liquid outlet, wherein

[0010] After the first liquid inlet receives the test liquid after the diaphragm pump is pressurized, the test liquid is supplied to the first to-be-tested plunger pump through the first liquid outlet, the first to-be-tested plunger pump supplies the flowing test liquid to the next to-be-tested plunger pump, and the test liquid is sequentially connected to the last plunger pump, and then the test liquid flows back to the shunt block from the second liquid inlet and returns to the buffer bottle through the second liquid outlet, forming a liquid flow loop of the test liquid.

[0011] Preferably, the plunger pump aging test device further comprises a plurality of test plates stacked, the test plates are provided with a plurality of plunger pump spaces, the test plates are connected with the base, and the test plates and the base and the plurality of test plates are connected through support rods.

[0012] Preferably, the number of plunger pump spaces on each test plate is 20.

[0013] Preferably, the support rod is a telescopic support rod to adapt to plunger pumps of different heights.

[0014] Preferably, the telescopic support rod is provided with a locking knob for locking the telescopic support rod at a specific height.

[0015] Preferably, the telescopic support rod has a height of 40-200mm.

[0016] Preferably, the plunger pump space is provided with a heat insulation and shock absorption pad.

[0017] Preferably, the plunger pump space is provided with four heat dissipation grooves.

[0018] Preferably, the number of heat dissipation grooves is four.

[0019] Preferably, the four corners of the plunger pump space are arc-shaped to match the shape of the bottom of the plunger pump and prevent rotation during movement.

[0020] Compared with the prior art, the above technical scheme of the utility model has the following advantages: the utility model sets up a plurality of plunger pump spaces on the test area, and the test liquid flowing into the first to-be-tested plunger pump is sequentially connected to the last plunger pump through the pipeline, so that the test device can test a plurality of plunger pumps at the same time, and the expansibility of the test device is very strong. Secondly, the test device with a multi-layer structure can adapt to plunger pumps of different sizes and different specifications, and can meet the test requirements of different types of plunger pumps. Due to the high flexibility and expansibility of the design, even in a laboratory or production workshop with limited space, the size and test area configuration of the device can be adjusted appropriately to fully utilize the existing space for large-scale plunger pump testing. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to make the content of the utility model more easily be clearly understood, the following according to the specific embodiment of the utility model and combining with the drawings, the utility model is further explained in detail.

[0022] Fig. 1 It is a schematic diagram of the plunger pump aging test device of the utility model.

[0023] Fig. 2 It is a multi-layer stacking structure schematic diagram of the plunger pump aging test device of the utility model.

[0024] The description of the drawing of the specification is as follows: 1, base; 2, shunt block; 21, first liquid inlet; 22, first liquid outlet; 23, second liquid inlet; 24, second liquid outlet; 3, diaphragm pump; 4, buffer bottle; 41, third liquid outlet; 42, third liquid inlet; 5, plunger pump empty position; 6, heat insulation damping pad; 7, heat dissipation groove; 8, support rod; 9, locking knob; 10, test plate. Specific embodiments

[0025] The utility model is further explained in combination with the drawings and specific embodiments, so that the person skilled in the art can better understand the utility model and can be implemented, but the embodiment is not as the limitation of the utility model.

[0026] As Figs. 1-2 Indicated, the utility model discloses a plunger pump aging test device, which comprises:

[0027] The base 1 includes a liquid supply area on one side of the base 1 and a test area formed by the remaining part of the base 1, and a plurality of plunger pump empty positions 5 are provided on the test area, with one plunger pump to be tested being fixed on each plunger pump empty position 5;

[0028] The buffer bottle 4 is arranged in the liquid supply area, and a test liquid is arranged in the buffer bottle 4 for testing, and a third liquid outlet 41 and a third liquid inlet 42 are arranged on the bottle mouth or the bottle body of the buffer bottle 4;

[0029] The diaphragm pump 3 is connected to the third liquid outlet 41 of the buffer bottle 4, and the test liquid provided by the third liquid outlet 41 is pressurized;

[0030] The shunt block 2 includes a first liquid inlet 21, a first liquid outlet 22, a second liquid inlet 23 and a second liquid outlet 24, wherein

[0031] After the first liquid inlet 21 receives the test liquid after the diaphragm pump 3 is pressurized, the test liquid is supplied to the first plunger pump to be tested through the first liquid outlet 22, and the first plunger pump to be tested supplies the test liquid to the next plunger pump to be tested, and the test liquid is sequentially supplied to the last plunger pump, and then the test liquid flows back to the shunt block 2 through the second liquid inlet 23, and returns to the buffer bottle 4 through the second liquid outlet 24, forming a liquid flow loop of the test liquid.

[0032] In an optional embodiment, the plunger pump aging test device further comprises a plurality of test plates 10 arranged in a stack, the test plates 10 are provided with a plurality of plunger pump positions 5, the test plates 10 are connected with the base 1, and the test plates 10 and the base 1 and the plurality of test plates 10 are connected through support rods 8.

[0033] In an optional embodiment, the number of plunger pump positions 5 on each test plate 10 is 20.

[0034] In an optional embodiment, the support rod 8 is a telescopic support rod to adapt to plunger pumps of different heights.

[0035] In an optional embodiment, the telescopic support rod is provided with a locking knob 9 for locking the telescopic support rod at a specific height.

[0036] In an optional embodiment, the telescopic support rod has a height of 40-200 mm. It should be noted that the above telescopic support rod height is only an example in the embodiments of the present application, and in fact, the telescopic support rod height is set according to the height requirement of the plunger pump, and the telescopic support rod height is not specifically limited in the embodiments of the present application.

[0037] In an optional embodiment, the plunger pump position 5 is provided with a heat insulation and shock absorption pad 6 for heat insulation and shock absorption of the plunger pump during the aging test.

[0038] In an optional embodiment, the plunger pump position 5 is provided with four heat dissipation grooves 7 to ensure good heat dissipation during the aging process; preferably, the number of heat dissipation grooves 7 is 4. It should be noted that the number of heat dissipation grooves 7 is only an example in the embodiments of the present application, and in fact, the number of heat dissipation grooves 7 is set according to the heat dissipation requirement of the plunger pump position 5, and the number of heat dissipation grooves 7 is not specifically limited in the embodiments of the present application.

[0039] In an optional embodiment, the four corners of the plunger pump position 5 are arc-shaped to fit the shape of the bottom of the plunger pump and prevent rotation during movement.

[0040] The plunger pump aging test device test process is as follows: first, before starting the aging test, the pipeline needs to be connected, the third liquid outlet 41 above the buffer bottle 4 is connected to the interface of the diaphragm pump 3 for liquid inlet, the other liquid outlet interface of the diaphragm pump 3 is connected to the first liquid inlet 21 of the flow divider 2, the first liquid inlet 21 of the flow divider 2 is communicated with the first liquid outlet 22, the first liquid outlet 22 of the flow divider 2 is connected to the first plunger pump needing aging test through the pipeline, and the other plunger pump interfaces are sequentially connected to the next plunger pump, until all the plunger pumps are connected in series, and finally the plunger pump needing aging test is connected to the second liquid inlet 23 of the flow divider 2 through the pipeline, the second liquid inlet 23 of the flow divider 2 is communicated with the second liquid outlet 24, and the second liquid outlet 24 is connected to the third liquid inlet 42 of the buffer bottle 4.

[0041] After the pipeline is communicated, the aging test is performed, the diaphragm pump 3 is connected to the power supply, the switch is pressed, the test liquid is drawn out from the buffer bottle 4, and is injected into each plunger pump in series through the connected pipeline, and finally is discharged back to the buffer bottle 4, forming a liquid flow loop of the test liquid. The switch is started for a certain time, and all the connected plunger pumps can be filled, and the time depends on the number of connected plunger pumps, and the time will not be too long, and after being filled, the aging test of the plunger pump can be started. During the test process, if the plunger pump to be tested has problems such as abnormal noise, jamming, inaccurate liquid suction and liquid discharge, and abnormal reset, an error can be reported through the external control center connected by the plunger pump aging test device. After the test is completed, the pipeline is disconnected, the next batch of plunger pumps to be tested is connected, and the process is repeated.

[0042] When the number of plunger pumps to be tested is too large or the specifications of the plunger pumps are inconsistent, the test board 10 can be used, each layer of the test board 10 can be fixed at different heights by the telescopic support rod, and is suitable for plunger pumps of different heights. When the pipeline is communicated, the last plunger pump to be tested on the last layer is communicated with the adjacent plunger pump on the test board 10 of the next layer through the pipeline, and is sequentially connected to the last plunger pump, and finally the plunger pump needing aging test is connected to the second liquid inlet 23 of the flow divider 2, and the second liquid outlet 24 is connected to the liquid inlet of the buffer bottle 4. The aging test process is the same as that of the single-layer plunger pump aging test device. When the test board 10 is not used, the telescopic support rod can be adjusted to the lowest height and stacked for placement, without multiple disassembly, and is convenient to use.

[0043] Compared with the prior art, the utility model has the following beneficial effects: first, the utility model is equipped with multiple plunger pump spaces 5 on the test area, and the test liquid flowing into the first plunger pump is connected to the last plunger pump in turn through the pipeline, so that the test device can test multiple plunger pumps at the same time, users can select how many plunger pumps to test according to actual needs, and the modular design and adjustable test area make the expansibility of the test device very strong. Secondly, the test device with the multi-layer structure can adapt to plunger pumps of different sizes and specifications, the plunger pump spaces 5 on each test plate 10 can be customized and adjusted according to the actual size of the pump, so that plunger pumps of various specifications can be accurately fixed and tested, and the adaptability ensures the universality of the device and can meet the test requirements of different types of plunger pumps. For large-scale production of plunger pumps, especially medical equipment manufacturers, a large number of pumps need to be tested for aging in the quality detection link, which can significantly shorten the test period. In addition, the test device uses a diaphragm pump 3 to fully fill the liquid in the buffer bottle 4 into all plunger pumps from the flow divider 2, avoiding damage to the equipment due to dry grinding.

[0044] Obviously, the above embodiments are only examples for clearly illustrating, not limiting the embodiments. For ordinary skilled in the art, other different forms of changes or variations can be made on the basis of the above description. Here, all the embodiments need not and cannot be exhausted. The obvious changes or variations derived therefrom are still within the protection scope of the utility model.

Claims

1. A device for testing the aging of a plunger pump, characterized in that The utility model relates to a kind of plunger pump aging test device, including: Base, including the liquid supply area in the one side of the base and the test area formed by the remaining part of the base, the test area is equipped with several plunger pump spaces, each plunger pump space is fixed with a to-be-tested plunger pump corresponding; Buffer bottle, set in the liquid supply area, the buffer bottle is equipped with test liquid for testing, and the bottle mouth or bottle body is equipped with third liquid outlet and third liquid inlet; Diaphragm pump, connected to the third liquid outlet of the buffer bottle, provides the test liquid of the third liquid outlet with pressure boost; Flow splitter, including first liquid inlet, first liquid outlet, second liquid inlet and second liquid outlet, wherein After the first liquid inlet receives the test liquid after pressure boost by the diaphragm pump, the test liquid is supplied to the adjacent first to-be-tested plunger pump by the first liquid outlet, and the first to-be-tested plunger pump supplies the test liquid to the next to-be-tested plunger pump, and the test liquid is returned to the buffer bottle through the second liquid outlet after being returned to the flow splitter from the second liquid inlet, to form a liquid flow loop of test liquid.

2. The piston pump burn-in test apparatus of claim 1, wherein, The plunger pump aging test device further includes a plurality of test plates arranged in a stack, the test plates are equipped with a plurality of plunger pump spaces, the test plates are connected to the base, and the test plates and the base are connected by support rods.

3. The piston pump aging test apparatus of claim 2, wherein, The upper plunger pump space of each test plate is 20.

4. The piston pump burn-in test apparatus of claim 2, wherein, The support rod is a telescopic support rod to adapt to plunger pumps of different heights.

5. The piston pump burn-in test apparatus of claim 4, wherein, The telescopic support rod is provided with a locking knob for locking the telescopic support rod at a specific height.

6. The piston pump burn-in test apparatus of claim 4, wherein, The height of the telescopic support rod is 40-200mm.

7. The piston pump aging test apparatus of claim 1 or 2, wherein, The plunger pump space is provided with a heat-insulating and shock-absorbing pad.

8. The piston pump aging test apparatus of claim 1 or 2, wherein, The plunger pump space is provided with four heat dissipation grooves.

9. The piston pump aging test apparatus of claim 8, wherein, The number of heat dissipation grooves is four.

10. The piston pump aging test apparatus of claim 1 or 2, wherein, The four corners of the plunger pump space are arc-shaped to match the shape of the bottom of the plunger pump and prevent rotation during movement.

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