Hot oil pump with liquid leakage alarm function

Abstract

The utility model discloses a hot oil pump with a liquid leakage alarming function, which relates to the technical field of hot oil pumps and particularly comprises a motor and a pump body which are arranged on a pump seat, a pump shaft of the pump body is connected with the motor, one end of the sealing cylinder is coaxially connected with one side of a sealing cover, and the sealing cylinder and the sealing cover are communicated with each other. A pump shaft of the pump body and a rotating shaft of the motor are covered in the sealing cylinder; when liquid leaks from the rotating position of the pump shaft and the pump body, the liquid flows into the annular liquid storage cavity along the inner walls of the sealing cylinder and the sealing cover, and a liquid level meter is arranged at the bottom of the annular liquid storage cavity. When the sealing device is used and the joint of the pump shaft and the bearing seat leaks, leaked liquid flows into the sealing cover or the sealing cylinder and then flows into the annular liquid storage cavity, and the liquid is monitored by the liquid level meter when being gathered in the annular liquid storage cavity, so that whether the rotating part of the pump shaft leaks liquid or not is monitored in real time; the problem of liquid leakage can be found in time when the liquid leakage occurs.

Description

Technical Field

[0001] The utility model relates to the technical field of hot oil pumps, in particular to a hot oil pump with a liquid leakage alarm. Background Art

[0002] The hot oil pump is an ideal hot oil circulation pump or heat carrier delivery pump, and is an ideal matching pump for heat exchange equipment. The structure of the hot oil pump includes a pump body and a motor, both of which are set on the pump seat, and then the motor and the pump body are connected through a coupling. During the long-term rotation of the pump shaft, the shaft seal will age and deform, resulting in leakage problems;

[0003] The existing hot oil pump cannot monitor the leakage problem, resulting in the pump being unable to detect the leakage in time. Therefore, we propose a hot oil pump with leakage alarm. Utility Model Content

[0004] In view of the deficiency that leakage of existing hot oil pumps cannot be monitored in real time, the utility model provides a hot oil pump with leakage alarm, which has the advantage that when leakage occurs, the liquid will be concentrated in the annular liquid storage cavity and thus be monitored by the liquid level meter, thus solving the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0006] A hot oil pump with a liquid leakage alarm is designed, comprising a motor and a pump body arranged on a pump seat, wherein the pump shaft of the pump body is connected to the motor, and further comprising a sealing cylinder, wherein one end of the sealing cylinder is coaxially connected to one side of a sealing cover, and the two are connected;

[0007] The sealing sleeve covers the pump shaft of the pump body and the rotating shaft of the motor, and the edge of the sealing cover is installed on the side of the pump body;

[0008] Among them, the sealing cylinder is a conical structure, and an annular liquid storage cavity protruding outward is provided in the middle of the side of the sealing cover. When liquid leaks at the rotating part of the pump shaft and the pump body, the liquid flows into the annular liquid storage cavity along the inner wall of the sealing cylinder and the sealing cover. A liquid level meter is provided at the bottom of the annular liquid storage cavity.

[0009] Preferably, an opening is provided in the middle of the sealing cylinder and the sealing cover, so that the sealing cylinder and the sealing cover are divided into two halves;

[0010] Flanges are arranged at the edges of the sealing cylinder and the sealing cover, and the upper and lower flanges are fastened by bolts.

[0011] Preferably, a bracket is installed on the side of one of the sealing cylinders, and the bottom of the bracket is connected to the pump seat.

[0012] Preferably, the pump body comprises a pump casing, a support is provided at the bottom of the pump casing, and the support is mounted on the pump seat;

[0013] A sealing cover is detachably mounted on one side of the pump housing close to the motor, and a bearing seat is arranged at the center of the sealing cover;

[0014] An impeller is arranged in the pump casing, and the impeller is mounted on the pump shaft. The pump shaft is rotatably mounted in the bearing seat. A liquid inlet is arranged on the side of the pump casing away from the motor, and a liquid outlet is arranged on the top.

[0015] Preferably, an annular seat is provided on the side edge of the pump housing, and the edge of the sealing cover is fastened to the annular seat by bolts.

[0016] Preferably, the liquid level meter is connected to the alarm via a wire.

[0017] Compared with the prior art, when the utility model is in use, when the connection between the pump shaft and the bearing seat leaks, the leaked liquid will flow into the sealing cover or the sealing cylinder, and then the liquid will flow into the annular liquid storage cavity. When the liquid accumulates in the annular liquid storage cavity, it will be monitored by the liquid level meter, so as to monitor in real time whether there is leakage at the rotating part of the pump shaft, so that the leakage problem can be discovered in time when it occurs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The three-dimensional structure of the utility model is shown in FIG. Figure 1 .

[0019] Figure 2 The three-dimensional structure of the utility model is shown in FIG. Figure 2 .

[0020] Figure 3 The three-dimensional structure of the utility model is shown in FIG. Figure 3 .

[0021] Figure 4 It is the front view of the utility model.

[0022] Figure 5 It is a schematic diagram of the structure of the utility model after the sealing cover is separated.

[0023] Figure 6 It is a schematic diagram of the structure of the sealing cover after being combined in the utility model.

[0024] In the figure: 1. pump seat; 2. bracket; 3. motor; 4. flange; 5. sealing cylinder; 6. bearing seat; 7. sealing cover; 8. liquid outlet; 9. annular seat; 10. liquid inlet; 11. sealing cover; 12. support; 13. annular liquid storage chamber; 14. opening; 15. pump casing; 16. liquid level meter. DETAILED DESCRIPTION

[0025] 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.

[0026] See also Figures 1 to 6 The utility model provides a technical solution: a hot oil pump with a liquid leakage alarm, comprising a pump body and a motor 3 arranged on a pump seat 1, the pump body comprising a pump casing 15, a support 12 is arranged at the bottom of the pump casing 15, the support 12 is mounted on the pump seat 1, and the two are connected by bolts;

[0027] A sealing cover 11 is detachably mounted on one side of the pump casing 15, and the edge of the sealing cover 11 is connected to the pump casing 15 by bolts; an impeller is arranged in the pump casing 15, and the impeller is mounted on the pump shaft; a bearing seat 6 is arranged at the center of the sealing cover 11, and the pump shaft is rotatably mounted in the bearing seat 6; a liquid inlet 10 is arranged on the side of the pump casing 15 away from the motor 3, and a liquid outlet 8 is arranged on the top of the pump casing 15, wherein the pump shaft and the driving motor enable the motor 3 to drive the pump body to rotate.

[0028] The present application also includes a sealing cylinder 5 and a sealing cover 7, such as Figure 2 As shown, one end of the sealing cylinder 5 is coaxially connected to one side of the sealing cover 7, and the sealing cylinder 5 and the sealing cover 7 are in communication;

[0029] The sealing cylinder 5 covers the pump shaft of the pump body and the rotating shaft of the motor 3, and the edge of the sealing cover 7 is installed on the side of the pump body; Figure 4 As shown, an annular liquid storage cavity 13 protruding outward is provided in the middle of the side of the sealing cover 7, and the sealing cylinder 5 is a conical structure;

[0030] Specifically, during use, when liquid leaks at the rotating part of the pump shaft and the pump body, the liquid flows into the annular liquid storage chamber 13 along the inner wall of the sealing tube 5 and the sealing cover 7 and gathers. A liquid level gauge is provided at the bottom of the annular liquid storage chamber 13. The liquid level gauge is preferably an ultrasonic liquid level gauge. The liquid level gauge is connected to the alarm through a wire. The alarm can be set on the pump seat 1. When the liquid level gauge detects that liquid has accumulated in the annular liquid storage chamber 13, the liquid level gauge can give an alarm prompt through the alarm.

[0031] The present application also makes further improvements to the sealing cylinder 5 and the sealing cover 7, such as Figure 2 As shown, an opening 14 is provided in the middle of the sealing cylinder 5 and the sealing cover 7, so that the sealing cylinder 5 and the sealing cover 7 are divided into two halves. The specific structure of the sealing cylinder 5 and the sealing cover 7 is as follows: Figure 5 and Figure 6 As shown;

[0032] A flange 4 is provided at the edge of the sealing cylinder 5 and the sealing cover 7, and the upper and lower flanges 4 are fastened by bolts, so that it is convenient to open the sealing cylinder 5 and the sealing cover 7, and to install the sealing cylinder 5 and the sealing cover 7;

[0033] like Figure 1 As shown, a bracket 2 is installed on the side of one of the sealing cylinders 5, and the bottom of the bracket 2 is connected to the pump seat 1. The bracket 2 can support the sealing cylinder 5 to prevent the sealing cylinder 5 from shaking due to being too long.

[0034] The sealing cover 7 is detachable from the pump housing. The detachable structure includes an annular seat 9 arranged on the side edge of the pump housing 15. The edge of the sealing cover 7 and the annular seat 9 are fastened by bolts to facilitate disassembly and installation.

[0035] The focus of the present application is that after the pump has been used for a long time, the connection between the pump shaft and the bearing seat will age, resulting in leakage, and the leaked liquid will flow into the sealing cover 7 or the sealing cylinder 5, and then the liquid will flow into the annular liquid storage chamber 13 along the sealing cylinder 5 or the sealing cover. When liquid accumulates in the annular liquid storage chamber 13, it is monitored by the liquid level meter 16, thereby real-time monitoring of the rotation of the pump shaft, so that leakage problems can be discovered in time when they occur; and the sealing cylinder 5 provided also covers the motor shaft therein to prevent foreign matter from entering the rotating shaft, further improving the safety of the pump.

[0036] In the description of the present utility model, it should be noted that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present utility model; the terms "first", "second", and "third" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance. In addition, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not expressly listed, or also includes elements inherent to such process, method, article, or apparatus.

[0037] 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 hot oil pump with a leakage alarm, comprising a motor (3) and a pump body arranged on a pump seat (1), wherein a pump shaft of the pump body is connected to the motor (3), characterized in that: It also includes a sealing cylinder (5), one end of which is coaxially connected to one side of a sealing cover (7), and the two are in communication; The sealing cylinder (5) covers the pump shaft of the pump body and the rotating shaft of the motor (3), and the edge of the sealing cover (7) is installed on the side of the pump body; The sealing cylinder (5) is of a conical structure, and an annular liquid storage cavity (13) protruding outward is provided in the middle of the side surface of the sealing cover (7). When liquid leaks at the rotation point of the pump shaft and the pump body, the liquid flows into the annular liquid storage cavity (13) along the inner wall of the sealing cylinder (5) and the sealing cover (7), and a liquid level gauge is provided at the bottom of the annular liquid storage cavity (13).

2. The hot oil pump with liquid leakage alarm according to claim 1, characterized in that: An opening (14) is provided at a middle position between the sealing cylinder (5) and the sealing cover (7), so that the sealing cylinder (5) and the sealing cover (7) are divided into two halves; Flanges (4) are provided at the edges of the sealing cylinder (5) and the sealing cover (7), and the upper and lower flanges (4) are fastened by bolts.

3. The hot oil pump with liquid leakage alarm according to claim 2, characterized in that: A bracket (2) is mounted on the side of one of the sealing cylinders (5), and the bottom of the bracket (2) is connected to the pump seat (1).

4. The hot oil pump with liquid leakage alarm according to claim 3, characterized in that: The pump body comprises a pump casing (15), a support (12) is provided at the bottom of the pump casing (15), and the support (12) is mounted on the pump base (1); A sealing cover (11) is detachably mounted on one side of the pump housing (15) close to the motor (3), and a bearing seat (6) is provided at the center of the sealing cover (11); An impeller is arranged in the pump housing (15), and the impeller is mounted on a pump shaft. The pump shaft is rotatably mounted in a bearing seat (6). A liquid inlet (10) is arranged on a side of the pump housing (15) away from the motor (3), and a liquid outlet (8) is arranged on the top.

5. The hot oil pump with liquid leakage alarm according to claim 4, characterized in that: An annular seat (9) is provided on the side edge of the pump housing (15), and the edge of the sealing cover (7) and the annular seat (9) are fastened by bolts.

6. The hot oil pump with a liquid leakage alarm according to any one of claims 1 to 5, characterized in that: The liquid level meter is connected to the alarm through wires.

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