Hand-lifting maneuvering fire pump flow pressure tester

Abstract

The utility model discloses a flow and pressure tester for a hand-lifting maneuvering fire pump, which relates to the technical field of pressure testing of fire pumps and comprises a temperature and pressure compensation integrated vortex shedding flowmeter, and a testing main pipe body is fixed at the lower end of the temperature and pressure compensation integrated vortex shedding flowmeter in a threaded manner. The lower detection end of the temperature and pressure compensation integrated vortex shedding flowmeter penetrates into the testing main pipe body and is provided with a detection probe, one side of the testing main pipe body is fixedly connected with a connecting pipe body, the outer pipe face of one side of the connecting pipe body is fixedly sleeved with a positioning groove sleeve, and the side, away from the positioning groove sleeve, of a positioning arc plate is fixedly connected with a first flange plate. A large thread notch used for flange connection is formed in the surface of the second flange plate, a conversion connector pipe used for threaded connection is connected to the surface of one side of the second flange plate, and a detection pipe part of the temperature and pressure compensation integrated vortex shedding flowmeter is in threaded connection with a first shell and a second shell which are symmetrical; the method has the effects of improving the flexible test and having higher practicability.

Description

Technical Field

[0001] The utility model relates to the technical field of fire pump pressure testing, in particular to a hand-lifted motorized fire pump flow pressure tester. Background Art

[0002] Fire flow pressure tester is mainly used for measuring the flow in large pipelines. It only needs to set a small hole in the pipeline and insert the sensor probe into the pipeline to accurately measure the actual flow. It causes relatively little damage to the pipeline and has good measurement stability.

[0003] At present, most of the pressure testers used for fire pumps are often fixedly connected to the connecting pipes between fire pumps, which will generate a lot of installation costs and is not convenient for flexible manual testing of fire pumps in various locations. In addition, the installation method for fire pump testing is often too cumbersome, which leads to the inconvenience of test connection. Utility Model Content

[0004] The utility model aims to provide a hand-lifted motorized fire pump flow and pressure tester, which solves the technical problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a hand-lifted motorized fire pump flow pressure tester, including a temperature and pressure compensation integrated vortex flowmeter, characterized in that: a test main body is threadedly fixed at the lower end of the temperature and pressure compensation integrated vortex flowmeter, the detection lower end of the temperature and pressure compensation integrated vortex flowmeter penetrates into the interior of the test main body and a detection probe is installed, one side of the test main body is fixedly connected to a connecting pipe body, one side of the outer pipe surface of the connecting pipe body is fixedly sleeved with a positioning groove sleeve, the internal positioning plug of the positioning groove sleeve is provided with a plurality of positioning arc plates, the side of the positioning arc plate away from the positioning groove sleeve is fixedly connected with a first flange, one side of the first flange is threadedly connected with a second flange, the second flange fits the open pipe surface of the connecting pipe body, one side of the second flange is connected with a conversion joint pipe with a model 65 interface, and the interior of the conversion joint pipe is provided with a connection notch for quick plugging and unplugging with a fire pump;

[0006] The detection tube portion of the temperature and pressure compensation integrated vortex flowmeter is threadedly connected with a symmetrical first shell and a second shell, and a handle is snap-connected on one side of the first shell and the second shell.

[0007] Optionally, a connecting seat is fixedly connected to the lower end of the temperature and pressure compensated integrated vortex flowmeter, and a first bolt is threadedly connected between the connecting seat and the test main pipe.

[0008] Optionally, a second bolt is threadedly connected between the first flange and the second flange.

[0009] Optionally, the connecting tube body is fitted with a first sealing ring around the inner tube wall of the conversion joint tube, a sealing groove is opened around the open tube surface of the connecting tube body, a second sealing ring is provided in the sealing plug in the sealing groove, and the second sealing ring is fixedly connected to the side surface of the second flange away from the conversion joint tube.

[0010] Optionally, a third bolt is threadedly fixed between the first shell and the second shell.

[0011] Optionally, the handle outer shell is connected with an anti-slip sleeve.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] 1. The utility model adopts the use of temperature and pressure compensation integrated vortex flowmeter, which can effectively measure the working volume flow rate in the fire pump, and is almost not affected by parameters such as fluid density, pressure, temperature, viscosity, etc., and has the excellent characteristics of small pressure loss, large measuring range and high accuracy.

[0014] 2. The utility model adopts a conversion joint pipe with a model 65 interface, which can effectively ensure that the conversion joint pipe can be quickly adapted and connected to the fire pump through the connecting groove. When the conversion joint pipe is connected to the connecting pipe body, the positioning arc plate positioning plug can be set into the positioning groove sleeve to achieve rapid installation and rapid positioning, so as to ensure the accuracy and speed of the subsequent connection of the first flange and the second flange using the second bolt, thereby achieving flexible disassembly and replacement of the conversion joint pipe and improving the practicality of use.

[0015] 3. The utility model uses a first shell and a second shell connected to the outer shell of the temperature and pressure compensation integrated vortex flowmeter detection tube, so that the inspector can conveniently carry the temperature and pressure compensation integrated vortex flowmeter through the handle formed by the connection of the first shell and the second shell, thereby ensuring the convenience of the inspector in using the fire pump flow pressure tester. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is the front view of the structure of the utility model;

[0017] Figure 2 It is a front cross-sectional view of the structure of the utility model;

[0018] Figure 3 For this utility model Figure 2 A magnified schematic diagram of the structure at center A;

[0019] Figure 4 It is a partial structural cross-sectional view of the connecting portion of the connecting pipe body in the utility model.

[0020] In the figure: 1-temperature and pressure compensated integrated vortex flowmeter, 2-connecting seat, 3-test main pipe, 4-first bolt, 5-connecting pipe body, 6-detection probe, 7-positioning groove sleeve, 8-positioning arc plate, 9-first flange, 10-second flange, 11-conversion joint pipe, 12-second bolt, 13-connecting groove, 14-first sealing ring, 15-sealing groove, 16-second sealing ring, 17-first outer shell, 18-second outer shell, 19-third bolt, 20-handle, 21-anti-slip sleeve. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Example 1, please refer to Figures 1 to 4 The utility model provides a hand-lifted motorized fire pump flow and pressure tester, including a temperature and pressure compensation integrated vortex flowmeter 1, a test main body 3 is threadedly fixed to the lower end of the temperature and pressure compensation integrated vortex flowmeter 1, a connecting seat 2 is fixedly connected to the lower end of the temperature and pressure compensation integrated vortex flowmeter 1, a first bolt 4 is threadedly connected between the connecting seat 2 and the test main body 3, a detection lower end of the temperature and pressure compensation integrated vortex flowmeter 1 penetrates into the interior of the test main body 3 and a detection probe 6 is installed, and a connecting pipe body 5 is fixedly connected to one side of the test main body 3.

[0023] In this embodiment, the use of the temperature and pressure compensation integrated vortex flowmeter 1 is effective in measuring the working volume flow rate in the fire pump, which is almost unaffected by parameters such as fluid density, pressure, temperature, viscosity, etc., and has the excellent characteristics of small pressure loss, large range, and high precision. The temperature and pressure compensation integrated vortex flowmeter 1 and the test main body 3 can be connected by the first bolt 4, and during the test process, the vortex is staggered and separated, and a pulsating pressure is generated in the wake of the test main body 3 and the connecting pipe body 5. The detection probe 6 arranged in the test main body 3 is subjected to this tiny pulsating pressure, so that the piezoelectric crystal element buried in the probe is subjected to alternating stress and generates an alternating charge signal. After the detection amplifier transforms, amplifies, filters and shapes the signal of the alternating charge signal, it outputs a current (or voltage) pulse signal with the same frequency as the vortex separation frequency. Each pulse output by the flowmeter will represent a certain volume of the measured fluid. The total number of output pulses within a period of time will represent the total volume of the fluid flowing through the flowmeter during this period of time.

[0024] In this embodiment, since a positioning groove sleeve 7 is fixedly sleeved on the outer tube surface of one side of the connecting tube body 5, a plurality of positioning arc plates 8 are connected to the internal limiting rotation of the positioning groove sleeve 7, a first flange 9 is fixedly connected to the side of the positioning arc plate 8 away from the positioning groove sleeve 7, a second flange 10 is threadedly connected to one side of the first flange 9, a second bolt 12 is threadedly connected between the first flange 9 and the second flange 10, the second flange 10 fits the open tube surface of the connecting tube body 5, and a conversion joint pipe 11 with a model 65 interface is connected to one side surface of the second flange 10, and a connecting groove 13 is opened inside the conversion joint pipe 11.

[0025] Therefore, by adopting the conversion joint pipe 11 with the model 65 interface, it can be effectively ensured that the conversion joint pipe 11 can be quickly adapted and connected to the fire pump through the connecting groove 13, and when the conversion joint pipe 11 is connected to the connecting pipe body 5, the positioning arc plate 8 can be used to position the plug into the positioning groove sleeve 7 to achieve rapid installation and rapid positioning, so as to ensure the accuracy and speed of the subsequent connection of the first flange 9 and the second flange 10 using the second bolt 12, thereby achieving flexible disassembly and replacement of the conversion joint pipe 11 and improving the practicality of use.

[0026] Furthermore, the detection tube portion of the temperature and pressure compensated integrated vortex flowmeter 1 is threadedly connected with a symmetrical first shell 17 and a second shell 18, a third bolt 19 is threadedly fixed between the first shell 17 and the second shell 18, and a handle 20 is snap-connected on one side of the first shell 17 and the second shell 18, and an anti-slip sleeve 21 is connected to the outer cover of the handle 20.

[0027] More specifically, the inspector can conveniently carry the temperature and pressure compensated integrated vortex flowmeter 1 through the handle 20 formed by the connection of the first shell 17 and the second shell 18. The anti-slip cover 21 can prevent the inspector's hands from slipping when holding it, thereby ensuring the inspector's convenience in using the fire pump flow pressure tester.

[0028] Furthermore, a first sealing ring 14 is formed around the connecting tube body 5 and is in close contact with the inner tube wall of the conversion joint tube 11. A sealing groove 15 is formed around the open tube surface of the connecting tube body 5. A second sealing ring 16 is formed in the sealing plug of the sealing groove 15. The second sealing ring 16 is fixedly connected to the side surface of the second flange 10 away from the conversion joint tube 11.

[0029] It is worth noting that when the conversion joint pipe 11 fits the connecting pipe body 5, the second sealing ring 16 is inserted into the sealing groove 15, and the second flange 10 fits the first sealing ring 14, thereby achieving a sealing effect both inside and outside.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A hand-lifted motorized fire pump flow and pressure tester, comprising a temperature and pressure compensated integrated vortex flowmeter (1), characterized in that: The lower end of the temperature-pressure compensation integrated vortex flowmeter (1) is threadedly fixed with a test main body (3); the detection lower end of the temperature-pressure compensation integrated vortex flowmeter (1) penetrates into the interior of the test main body (3) and is equipped with a detection probe (6); one side of the test main body (3) is fixedly connected with a connecting pipe body (5); one side of the outer pipe surface of the connecting pipe body (5) is fixedly sleeved with a positioning groove sleeve (7); the internal positioning plug of the positioning groove sleeve (7) is provided with a plurality of positioning arc plates (8); the side of the positioning arc plate (8) away from the positioning groove sleeve (7) is fixedly connected with a first flange (9); one side of the first flange (9) is threadedly connected with a second flange (10); the second flange (10) fits the open pipe surface of the connecting pipe body (5); one side of the second flange (10) is connected with a conversion joint pipe (11); the inside of the conversion joint pipe (11) is provided with a connection notch (13) for quick plugging and unplugging with a fire pump; The detection tube portion of the temperature and pressure compensation integrated vortex flowmeter (1) is threadedly connected to a symmetrical first shell (17) and a second shell (18); a handle (20) is snap-connected to one side of the first shell (17) and the second shell (18).

2. A hand-lift motorized fire pump flow and pressure tester according to claim 1, characterized in that: The lower end of the temperature and pressure compensation integrated vortex flowmeter (1) is fixedly connected to a connection seat (2), and a first bolt (4) is threadedly connected between the connection seat (2) and the test main pipe (3).

3. A hand-lift motorized fire pump flow and pressure tester according to claim 1, characterized in that: A second bolt (12) is threadedly connected between the first flange (9) and the second flange (10).

4. A hand-lift motorized fire pump flow and pressure tester according to claim 1, characterized in that: The connecting tube body (5) is fitted around the inner tube wall of the conversion joint tube (11) and is fitted with a first sealing ring (14). The opening tube surface of the connecting tube body (5) is provided with a sealing groove (15) around the opening tube surface. A second sealing ring (16) is provided in the sealing plug of the sealing groove (15). The second sealing ring (16) is fixedly connected to the surface of the second flange (10) on one side away from the conversion joint tube (11).

5. A hand-lift motorized fire pump flow and pressure tester according to claim 1, characterized in that: A third bolt (19) is threadedly fixed between the first housing (17) and the second housing (18).

6. A hand-lift motorized fire pump flow and pressure tester according to claim 5, characterized in that: The handle (20) is outer-mounted with an anti-slip sleeve (21).

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