CN216284141U

CN216284141U - Heat exchanger gas tightness detection device

Info

Publication number: CN216284141U
Application number: CN202122874801.9U
Authority: CN
Inventors: 王永一; 杜顺洪
Original assignee: Sichuan Tongyi Thermal Equipment Co ltd
Current assignee: Sichuan Tongyi Thermal Equipment Co ltd
Priority date: 2021-11-22
Filing date: 2021-11-22
Publication date: 2022-04-12
Anticipated expiration: 2031-11-22

Abstract

The utility model provides a heat exchanger air tightness detection device, which is characterized in that: the device comprises a mounting plate, a qualified product and a product to be detected, wherein a plug is arranged at the lower end of the mounting plate and used for respectively plugging an outlet at one end of the qualified product and an outlet at one end of the product to be detected, a pressurizing air pump is arranged beside the mounting plate and communicated with at least two branch pipes communicated with the other ends of the qualified product and the product to be detected; and the branch pipes are provided with air pressure monitoring meters and control valves, so that the numerical values of the air pressure monitoring meters at the positions of the qualified products and the products to be detected are compared. The utility model can more accurately judge the air tightness of the heat exchanger and prevent misjudgment.

Description

Heat exchanger gas tightness detection device

Technical Field

The utility model relates to the technical field of heat exchangers, in particular to a heat exchanger air tightness detection device.

Background

The heat exchanger is an energy-saving equipment for transferring heat between two or more kinds of fluid with different temperatures, and is used for transferring heat from the fluid with higher temperature to the fluid with lower temperature, so that the temperature of the fluid reaches the corresponding index to meet the requirements of process conditions or be used for heating. After the ware is accomplished the production, need carry out the gas tightness and detect, guarantee that heat exchanger's pipeline can not appear leaking the problem, current detection device puts into the aquatic through the heat exchanger product and observes the bubble in order obtaining whether gas leakage of its heat exchanger, however this kind of mode makes when having small pore on the heat exchanger, under the condition that pressure is not big enough, can not form the bubble of easily observing for detection personnel misjudge, and the testing result is inaccurate.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a heat exchanger air tightness detection device which can accurately detect whether the air tightness of a heat exchanger is qualified or not.

The embodiment of the utility model is realized by the following technical scheme: the utility model provides a heat exchanger gas tightness detection device which characterized in that: the device comprises a mounting plate, a qualified product and a product to be detected, wherein a plug is arranged at the lower end of the mounting plate and used for respectively plugging an outlet at one end of the qualified product and an outlet at one end of the product to be detected, a pressurizing air pump is arranged beside the mounting plate and communicated with at least two branch pipes communicated with the other ends of the qualified product and the product to be detected; and the branch pipes are provided with air pressure monitoring meters and control valves, so that the numerical values of the air pressure monitoring meters at the positions of the qualified products and the products to be detected are compared.

Further, still include the support body, the support body bottom is provided with the basin, install lifting unit on the support body, lifting unit with the mounting panel is fixed to be linked to each other, makes qualified products reach the article that awaits measuring immerses the basin.

Further, the lifting component comprises a driving motor, a first conical wheel, a second conical wheel and a transmission screw rod, the driving motor is fixed at the upper end of the support body, one end of the driving motor is connected with the first conical wheel, the transmission screw rod is connected with the back thread of the mounting plate, a track is arranged in the water tank, the back side of the mounting plate is provided with a sliding groove matched with the track, the two ends of the transmission screw rod are respectively connected with the side wall of the water tank and the support body in a rotating mode, the front end of the transmission screw rod is connected with the second conical wheel, the first conical wheel is meshed with the second conical wheel, and the transmission screw rod rotates to drive the mounting plate to lift.

Further, the sliding groove is of a dovetail groove structure.

Further, the width of the water tank is larger than that of the mounting plate.

Furthermore, the mounting plate is provided with baffles, and the distance between the baffles is greater than the width of the qualified product.

Furthermore, a rubber extrusion sealing ring is sleeved on the plug.

The technical scheme of the embodiment of the utility model at least has the following advantages and beneficial effects: compared with the prior art, the method has the advantages that the heat exchanger with qualified air tightness and the heat exchanger to be tested are simultaneously pressurized and inflated, the control valve is closed, the air pressure monitoring meters at the two positions are observed to be compared after the heat exchanger and the heat exchanger are kept still for a period of time, if the air pressure monitoring meter of the heat exchanger at the position to be tested is smaller than that at the position of the qualified product, the air pressure monitoring meter is unqualified, the method is more accurate, and the heat exchanger is prevented from being provided with tiny pores which are difficult to find.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic front structural view of an air-tightness detection device provided in embodiment 1 of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

fig. 3 is a schematic back view of the air-tightness detecting device of the present invention.

Icon: the device comprises a mounting plate 1, a frame 2, a water tank 3, a to-be-detected product 4, a qualified product 5, an air pressure monitoring meter 6, a control valve 7, a lifting assembly 8, a driving motor 81, a first conical wheel 82, a second conical wheel 83, a transmission screw 84, a baffle 9, a pressurizing air pump 10, a branch pipe 11, a plug 12, a track 13 and a chute 14.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

Example 1

Referring to fig. 1 to 3, embodiment 1 is a heat exchanger airtightness detection apparatus, and is characterized in that: the device comprises a mounting plate 1, a qualified product 5 and a product 4 to be detected, wherein a plug 12 is arranged at the lower end of the mounting plate 1, the plug 12 is used for respectively plugging an outlet at one end of the qualified product 5 and an outlet at one end of the product 4 to be detected, a pressurizing inflator pump 10 is arranged beside the mounting plate 1, and the pressurizing inflator pump 10 is communicated with at least two branch pipes 11 which are communicated with the other ends of the qualified product 5 and the product 4 to be detected; the branch pipes 11 are respectively provided with an air pressure monitoring meter 6 and a control valve 7, so that the numerical values of the air pressure monitoring meters 6 at the positions of the qualified product 5 and the product 4 to be tested are compared, specifically, the utility model respectively fixes the qualified product 5 with air tightness and the product 4 to be tested of the heat exchanger on the mounting plate 1 by comparison, air vents at two ends of the heat exchanger are respectively connected and sealed by plugs 12 and branch pipe 11 joints, so that the product 4 to be tested and the qualified product 5 are in a sealed space, the air tightness of the heat exchanger of the qualified product 5 is in a normal state, the branch pipes 11 are conveniently bent and connected by adopting hoses, a plurality of branch pipes 11 can be simultaneously connected with a plurality of products 4 to be tested of the heat exchanger, the product 4 to be tested and the qualified product 5 are simultaneously inflated by a pressurizing inflator pump 10, when a certain pressure value is reached, the control valve 7 and the pressurizing inflator 10 are closed, after standing for a period of time, the numerical values of the air pressure monitoring meters 6 are compared, if the air pressure of the object 4 to be measured is reduced, the air tightness is indicated to have a problem, and the method has more obvious and accurate effect aiming at the tiny pores on the heat exchanger.

This embodiment still includes

support body

2, 2 bottoms of support body are provided with basin 3, install lifting unit 8 on the support body 2, lifting unit 8 links to each other with mounting panel 1 is fixed, make certified products 5 and 4 immersion basin 3 of awaiting measuring article, it is concrete, when 4 too much of awaiting measuring article that needs to detect, can be earlier with it through lifting unit 8 whole put into the aquatic, the poor heat exchanger of gas tightness can be got rid of out by priority fast to this method, the rest aerifys the test of stewing again, combine the use, in order to improve detection efficiency and degree of accuracy.

Lifting unit 8 in this embodiment includes driving motor 81, first cone pulley 82, second cone pulley 83 and drive screw 84, driving motor 81 is fixed in support body 2 upper end, and driving motor 81 one end links to each other with first cone pulley 82, drive screw 84 links to each other with the dorsal part screw thread of mounting panel 1, be provided with track 13 in the basin 3, mounting panel 1 dorsal part is equipped with the spout 14 with track 13 looks adaptation, drive screw 84 both ends rotate with basin 3 lateral wall and support body 2 respectively and link to each other, and drive screw 84 front end links to each other with second cone gear, first cone pulley 82 meshes with second cone pulley 83 mutually, make drive screw 84 rotate in order to drive mounting panel 1 and go up and down. Specifically, the to-be-tested product 4 and the qualified product 5 on the mounting plate 1 are driven by the driving motor 81, the transmission screw 84 rotates, so that the mounting plate 1 enters the water tank 3 along the track 13 to be completely submerged, an observer can observe whether bubbles emerge from the to-be-tested product 4,

the sliding groove 14 in this embodiment is a dovetail groove structure, specifically, the shape of the rail 13 is adapted to the sliding groove 14, and this structure is favorable for preventing derailment and has high stability.

The width of basin 3 in this embodiment is greater than the width of mounting panel 1, and is concrete, prevents that mounting panel 1 can't put into, and the water in basin 3 is not full simultaneously, and after mounting panel 1 descends and gets into basin 3, the water level risees and can not spill over.

Be provided with baffle 9 on the mounting panel 1 in this embodiment, and the distance between the baffle 9 is greater than the width of certified products 5, and is specific, carries out spacing fixed when putting into certified products 5 and the article 4 that awaits measuring through baffle 9.

The plug 12 in this embodiment is sleeved with a rubber extrusion seal ring, and specifically, the sealing performance between the lower plug 12 and the tested heat exchanger is improved by the rubber extrusion seal ring, so that air leakage is avoided, and the test result is influenced.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a heat exchanger gas tightness detection device which characterized in that: the device comprises a mounting plate (1), qualified products (5) and products to be tested (4), wherein a plug (12) is arranged at the lower end of the mounting plate (1), the plug (12) is used for respectively plugging one end outlets of the qualified products (5) and the products to be tested (4), a pressurizing inflator pump (10) is arranged beside the mounting plate (1), and the pressurizing inflator pump (10) is communicated with at least two branch pipes (11) and is communicated with the other ends of the qualified products (5) and the products to be tested (4);

and the branch pipes (11) are provided with air pressure monitoring meters (6) and control valves (7) so as to compare the numerical values of the air pressure monitoring meters (6) at the positions of the qualified products (5) and the products to be detected (4).

2. The heat exchanger airtightness detection apparatus according to claim 1, wherein: still include support body (2), support body (2) bottom is provided with basin (3), install lifting unit (8) on support body (2), lifting unit (8) with mounting panel (1) is fixed continuous, makes certified products (5) reach await measuring article (4) and dip basin (3).

3. The heat exchanger airtightness detection apparatus according to claim 2, wherein: the lifting component (8) comprises a driving motor (81), a first conical wheel (82), a second conical wheel (83) and a transmission screw (84), the driving motor (81) is fixed at the upper end of the frame body (2), one end of the driving motor (81) is connected with the first conical wheel (82), the transmission screw (84) is in threaded connection with the back side of the mounting plate (1), a track (13) is arranged in the water tank (3), a sliding groove (14) matched with the track (13) is arranged at the back side of the mounting plate (1), two ends of the transmission screw rod (84) are respectively connected with the side wall of the water tank (3) and the frame body (2) in a rotating way, the front end of the transmission screw (84) is connected with the second bevel gear, the first bevel wheel (82) is meshed with the second bevel wheel (83), so that the transmission screw (84) rotates to drive the mounting plate (1) to lift.

4. The heat exchanger airtightness detection apparatus according to claim 3, wherein: the sliding groove (14) is of a dovetail groove structure.

5. The heat exchanger airtightness detection apparatus according to claim 2, wherein: the width of the water tank (3) is larger than that of the mounting plate (1).

6. The heat exchanger airtightness detection apparatus according to claim 1, wherein: be provided with baffle (9) on mounting panel (1), just distance between baffle (9) is greater than the width of certified products (5).

7. The heat exchanger airtightness detection apparatus according to claim 1, wherein: and the plug (12) is sleeved with a rubber extrusion sealing ring.