Condensate water return device of low-nitrogen cast aluminum boiler

Abstract

The utility model discloses a low-nitrogen cast aluminum boiler condensate water return device, and relates to the technical field of low-nitrogen cast aluminum boilers, in particular to the low-nitrogen cast aluminum boiler condensate water return device which comprises a shell, an elastic balloon, a control assembly, a reset mechanism, a driving mechanism, a flow monitoring assembly, a one-way conveying assembly and an inner barrel. An elastic balloon is arranged in the inner barrel, a control assembly is arranged between the elastic balloon and the shell, a reset mechanism is arranged between the elastic balloon and the shell, a driving mechanism is arranged between the elastic balloon and the shell, and one-way conveying assemblies are arranged on the upper portion and the lower portion of the shell respectively. Compared with the prior art, the utility model has the advantages that the damage of condensate water to the backflow component is reduced; and maintenance is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of low-nitrogen cast aluminum boilers, in particular to a condensate return device for a low-nitrogen cast aluminum boiler. Background Technique

[0002] During the use of the boiler, a large amount of water vapor will be generated. After these water vapors transfer heat to the water in the pot, they will condense into water droplets, that is, condensate. The main function of the condensate return system is to recover this part of condensate and send it back to the boiler for continued use. Condensate is usually purer than the original water because many minerals and impurities in it have been removed during the evaporation process. Recycling condensate can improve the water quality of the boiler and extend the service life of the equipment. When recycling the condensate of the boiler, a condensate return device is required.

[0003] Although the prior art has solved certain problems, it still has the following disadvantages:

[0004] (1) Most of the prior art uses a water pump to transport the condensate. After the condensate is used in the boiler, it is easy to carry ash or other sundries, and entering the inside of the water pump is likely to cause damage to the water pump.

[0005] (2) When the prior art returns the condensate, it is not convenient to monitor the pipeline, and it is more troublesome during maintenance. Content of the Utility Model

[0006] The purpose of the utility model is to provide a condensate return device for a low-nitrogen cast aluminum boiler.

[0007] To achieve the above purpose, the utility model is realized through the following technical solutions:

[0008] A condensate return device for a low-nitrogen cast aluminum boiler, comprising:

[0009] A housing, an inner cylinder is arranged inside the housing, the upper and lower ends of the outer part of the inner cylinder are respectively fixedly connected to the upper and lower sides inside the housing, the upper and lower ends of the outside of the housing are respectively fixedly connected with a water outlet pipe and a water inlet pipe, a Y-shaped filter is arranged on the upper side of the water inlet pipe, and a communication hole is opened at the rear side of the outside of the housing;

[0010] An elastic balloon, the elastic balloon is arranged inside the inner cylinder, the upper and lower parts inside the inner cylinder are respectively adapted to the upper and lower parts of the outside of the elastic balloon, the upper and lower ends of the outside of the elastic balloon are respectively fixedly connected with a water delivery pipe, the water inlet pipe and the water outlet pipe are both connected to the inside of the elastic balloon through the water delivery pipe, and a plurality of uniformly distributed push-pull rods are fixedly connected to the periphery of the outside of the elastic balloon, and the other ends of the push-pull rods connecting the elastic balloon all extend to the outside of the inner cylinder;

[0011] A control assembly, which is arranged between the push-pull rod and the inner tube, and comprises a gear ring, a toggle ring groove and a toggle rod, wherein the gear ring is rotatably connected to the outside of the inner tube, the toggle ring groove is arranged on the upper side of the outside of the gear ring, and the toggle rods are respectively fixedly connected to the side of the lower end of the push-pull rod away from the elastic balloon, and the toggle rods are adapted to the inside of the toggle ring groove;

[0012] A reset mechanism, the reset mechanism is arranged between the push-pull rod and the housing;

[0013] A driving mechanism, the driving mechanism being arranged between the housing and the gear ring;

[0014] A flow monitoring component, wherein the flow monitoring component is arranged between the water inlet pipe and the water outlet pipe;

[0015] A one-way transport component is arranged inside the water pipe.

[0016] Furthermore, the reset mechanism comprises:

[0017] A plurality of limiting sleeves are evenly distributed and fixedly connected to the inner side wall of the shell, and the other end of the push-pull rod connected to the elastic balloon is slidably connected to the inner part of the limiting sleeve;

[0018] A baffle, the baffle being fixedly connected to an end of the push-pull rod away from the elastic balloon;

[0019] A compression spring is sleeved on a side of the push-pull rod away from the elastic balloon, and the compression spring is located on a side of the blocking piece close to the limiting sleeve.

[0020] Furthermore, the driving mechanism comprises:

[0021] A mounting plate, the mounting plate is fixedly connected to the rear side of the outer shell, and the mounting plate is located at the lower side of the outer part of the communicating hole;

[0022] A driving motor, wherein the driving motor is fixedly connected to the upper side of the mounting plate;

[0023] The driving gear is fixedly connected to the rotating shaft at the upper end of the driving motor, and the driving gear meshes with the teeth on the outside of the gear ring through the inside of the communicating hole.

[0024] Furthermore, the flow monitoring component includes:

[0025] A first flow meter, wherein the first flow meter is arranged on the water inlet pipe;

[0026] A second flow meter, wherein the second flow meter is arranged on the water inlet pipe, and the first flow meter and the second flow meter are arranged before and after the Y-type filter respectively;

[0027] A third flow meter is arranged on the water outlet pipe.

[0028] Furthermore, the one-way conveying component comprises:

[0029] Sleeves, each of which is embedded in the water pipe;

[0030] A first clamping ring, the first clamping ring is arranged on the lower side of the inner part of the sleeve;

[0031] A second snap ring, the second snap ring being arranged on the upper side of the inner part of the sleeve;

[0032] A valve ball is arranged inside the sleeve, and the valve ball is located between the first clamping ring and the second clamping ring.

[0033] Furthermore, fixed foot supports are fixedly connected to both sides of the front and rear of the lower end of the outer shell, and a plurality of evenly distributed water holes are provided on the upper side of the outer portion of the second clamping ring.

[0034] The utility model provides a condensate return device for a low-nitrogen cast aluminum boiler, which has the following beneficial effects:

[0035] (1) By rotating the gear ring and pushing and pulling the toggle rod using the toggle ring groove, the elastic balloon is driven to expand or contract, and the condensed water is sucked in and squeezed out. There are no mechanical parts inside the elastic balloon, and impurities such as slag are not easy to align and cause damage.

[0036] (2) By setting up three flow meters on the pipeline, it is convenient to determine which part of the pipeline has a problem by comparing the values between the three flow meters, so that maintenance personnel can quickly find the damaged location. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the implementation or the prior art description. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0038] Figure 1 The utility model is a three-dimensional low-nitrogen cast aluminum boiler condensate return device Figure 1 .

[0039] Figure 2 The utility model is a three-dimensional low-nitrogen cast aluminum boiler condensate return device Figure 2 .

[0040] Figure 3 It is a part of the structure of a low-nitrogen cast aluminum boiler condensate return device. Figure 1 .

[0041] Figure 4 is a three-dimensional view of a partial structure of a condensate return device for a low-nitrogen cast aluminum boiler of the present utility model Figure 2 .

[0042] Figure 5 is an enlarged three-dimensional view of a partial structure of a condensate return device for a low-nitrogen cast aluminum boiler of the present utility model Figure 1 .

[0043] Figure 6 is an enlarged three-dimensional view of a partial structure of a condensate return device for a low-nitrogen cast aluminum boiler of the present utility model Figure 2 .

[0044] Figure 7 is an enlarged three-dimensional view of a partial structure of a condensate return device for a low-nitrogen cast aluminum boiler of the present utility model Figure 3 .

[0045] Labels in the figure: 1. Outer shell; 2. Elastic balloon; 3. Control component; 301. Tooth ring; 302. Dialing ring groove; 303. Dialing rod; 4. Reset mechanism; 401. Limit sleeve; 402. Stop piece; 403. Extrusion spring; 5. Driving mechanism; 501. Mounting plate; 502. Driving motor; 503. Driving gear; 6. Flow monitoring component; 601. First flowmeter; 602. Second flowmeter; 603. Third flowmeter; 7. Unidirectional conveying component; 701. Sleeve; 702. First snap ring; 703. Second snap ring; 704. Valve ball; 8. Inner cylinder; 9. Outlet pipe; 10. Inlet pipe; 11. Y-type filter; 12. Communication hole; 13. Water delivery pipe; 14. Push-pull rod; 15. Fixed footrest; 16. Water through hole. Detailed implementation manners

[0046] Here, the exemplary embodiments will be described in detail, and the examples are shown in the drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The implementation manners described in the following exemplary embodiments do not represent all implementation manners consistent with the present disclosure. On the contrary, they are only examples of devices consistent with some aspects of the present disclosure as detailed in the appended claims.

[0047] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0048] Embodiment 1:

[0049] As Figures 1 to 7As shown in the figure, this embodiment provides a low-nitrogen cast aluminum boiler condensate return device, which includes a housing 1, an elastic balloon 2, a control assembly 3, a reset mechanism 4, a driving mechanism 5, a flow monitoring assembly 6, a one-way conveying assembly 7, an inner cylinder 8, and a water outlet pipe 9 and a water inlet pipe 10 arranged above and below the outside of the housing 1.

[0050] Among them, a cylindrical housing 1 is internally provided with an inner cylinder 8, and an inner cylinder 8 is internally provided with a deformable elastic balloon 2. There are bumps on the upper and lower parts inside the inner cylinder 8 to block and deform the upper and lower parts outside the elastic balloon 2, so that the elastic balloon 2 can only deform at the middle position. The upper and lower parts outside the elastic balloon 2 are fixedly connected with water delivery pipes 13, and the water delivery pipes 13 are connected in through connection with the water outlet pipe 9 and the water inlet pipe 10 fixedly connected to the upper and lower parts outside the housing 1. The condensate is sucked into the interior of the elastic balloon 2 from the water inlet pipe 10 through the deformation of the elastic balloon 2, and then squeezed out from the interior of the water outlet pipe 9. In order to realize the one-way delivery of the condensate, sleeves 701 are arranged inside the water delivery pipes 13. A second snap ring 703 is arranged on the upper side inside the sleeve 701, a first snap ring 702 is arranged on the lower side inside the sleeve 701, and a valve ball 704 that can slide up and down is arranged inside the sleeve 701.

[0051] A number of uniformly distributed water passing holes 16 are opened on the upper side outside the second snap ring 703. The valve ball 704 can move up and down to block the holes in the middle of the first snap ring 702 or the second snap ring 703. When the valve ball 704 blocks the hole in the middle of the first snap ring 702, the water path inside the corresponding water delivery pipe 13 is blocked. When the elastic balloon 2 expands, the condensate is drawn into the interior of the elastic balloon 2, and the valve balls 704 all approach the elastic balloon 2. The hole in the middle of the first snap ring 702 inside the upper water delivery pipe 13 is blocked by the valve ball 704, and the upper water delivery pipe 13 is blocked. The condensate inside the water inlet pipe 10 is sucked into the interior of the elastic balloon 2 through the interior of the water passing holes 16 by the lower water delivery pipe 13. When the elastic balloon 2 is squeezed, the valve balls 704 move away from each other. The valve ball 704 inside the lower water delivery pipe 13 blocks the hole in the middle of the first snap ring 702, and the lower water delivery pipe 13 is blocked. The condensate inside the elastic balloon 2 is squeezed out from the interior of the upper water delivery pipe 13.

[0052] In order to facilitate the control of the expansion or contraction of the elastic balloon 2, a gear ring 301 is rotatably connected to the outside of the inner tube 8, a connecting hole 12 is opened on the outer rear side of the outer shell 1, and a mounting plate 501 is fixedly connected to the lower side of the connecting hole 12 on the outer rear side of the outer shell 1, and a driving motor 502 is fixedly connected to the upper side of the mounting plate 501. A driving gear 503 is fixedly connected to the rotating shaft on the upper side of the driving motor 502. The driving gear 503 is meshed with the teeth inside the connecting hole 12 and the outside of the gear ring 301 to form a coordinated driving structure. A toggle ring groove 302 is opened on the upper side of the gear ring 301, and a number of evenly distributed push-pull rods 14 are fixedly connected to the outer middle side wall of the elastic balloon 2. The other end of the push-pull rod 14 is connected to the elastic balloon 2 and passes through the inside of the inner tube 8 to extend between the inner tube 8 and the outer shell 1, and is plugged into the outer Inside the several evenly distributed limiting sleeves 401 on the inner wall of the shell 1, a baffle 402 is fixedly connected on the side of the push-pull rod 14 away from the elastic balloon 2, and an extrusion spring 403 is arranged on the side of the baffle 402 close to the limiting sleeve 401. The extrusion spring 403 is sleeved on the push-pull rod 14, and the push-pull rod 14 is used to realize the function of the damping rod to assist the contraction of the elastic balloon 2. The upper and lower parts of the inner tube 8 limit the upper and lower parts of the elastic balloon 2, so that only the middle position of the elastic balloon 2 can be contracted or expanded to ensure the transportation of condensed water. A downward toggle rod 303 is fixedly connected on the side of the lower end of the push-pull rod 14 away from the elastic balloon 2. The toggle rod 303 is slidably connected to the inside of the toggle ring groove 302. With the rotation of the gear ring 301, the toggle ring groove 302 pushes and pulls the toggle rod 303 to realize the deformation of the elastic balloon 2.

[0053] Embodiment 2:

[0054] The solution in Example 1 is further introduced below in combination with a specific working method, as described below:

[0055] To filter the conveyed condensed water, a Y-type filter 11 is provided on the water inlet pipe 10 to filter the condensed water. Two flow meters, a first flow meter 601 and a second flow meter 602, are provided on the water inlet pipe 10. The first flow meter 601 and the second flow meter 602 are respectively before and after the Y-type filter 11, which is convenient for judging whether the Y-type filter 11 needs to be cleaned. When the value of the second flow meter 602 is less than the value of the first flow meter 601, it indicates that the Y-type filter 11 is blocked or there is a leak at the Y-type filter 11, which is convenient for maintenance. A third flow meter 603 is provided on the water outlet pipe 9 to facilitate judging whether the water flow conveyed by the elastic balloon 2 is stable and whether there is a leak between the water inlet pipe 10 and the water outlet pipe 9. Fixed foot supports 15 are installed on the front, back, left and right sides of the lower end of the outer shell 1 to keep the return water device stable. The water outlet pipe 9 needs to be connected to a refrigerating machine or a heat exchanger to cool down the filtered condensed water and then return it, or the water outlet pipe 9 is connected to other waste heat recovery devices for waste heat recovery and utilization, and then the water is returned.

[0056] The electrical components appearing in this article are all electrically connected to an external main controller and 220V mains electricity. The main controller can be a conventional known device such as a computer for control. The detailed descriptions of known functions and known components are omitted in the specific implementation manners of the present disclosure. To ensure the compatibility of the device, the operating means adopted are consistent with the parameters of market instruments.

[0057] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A low-nitrogen cast aluminum boiler condensate return device, characterized in that: include: An outer shell (1), wherein an inner cylinder (8) is arranged inside the outer shell (1), the upper and lower ends of the outer shell (8) are respectively fixedly connected to the upper and lower sides of the inner shell (1), the upper and lower ends of the outer shell (1) are respectively fixedly connected to a water outlet pipe (9) and a water inlet pipe (10), a Y-shaped filter (11) is arranged on the upper side of the water inlet pipe (10), and a connecting hole (12) is opened on the rear side of the outer shell (1); An elastic balloon (2), wherein the elastic balloon (2) is arranged inside the inner tube (8), the inner tube (8) is adapted to the outer tube (2) at upper and lower ends, the upper and lower ends of the outer tube (2) are fixedly connected to a water pipe (13), the water inlet pipe (10) and the water outlet pipe (9) are connected to the inner tube (2) through the water pipe (13), and a plurality of evenly distributed push-pull rods (14) are fixedly connected around the outer tube (2), and the other ends of the push-pull rods (14) connected to the elastic balloon (2) extend to the outside of the inner tube (8); A control assembly (3), the control assembly (3) being arranged between the push-pull rod (14) and the inner tube (8), the control assembly (3) comprising a gear ring (301), a toggle ring groove (302) and a toggle rod (303), the gear ring (301) being rotatably connected to the outside of the inner tube (8), the toggle ring groove (302) being arranged on the upper side of the outside of the gear ring (301), the toggle rod (303) being respectively fixedly connected to a side of the lower end of the push-pull rod (14) away from the elastic balloon (2), and the toggle rod (303) being adapted to the inside of the toggle ring groove (302); A reset mechanism (4), wherein the reset mechanism (4) is arranged between the push-pull rod (14) and the housing (1); A driving mechanism (5), wherein the driving mechanism (5) is arranged between the housing (1) and the gear ring (301); A flow monitoring component (6), wherein the flow monitoring component (6) is arranged between the water inlet pipe (10) and the water outlet pipe (9); A one-way conveying component (7), wherein the one-way conveying component (7) is arranged inside the water conveying pipe (13).

2. The condensate return device of a low-nitrogen cast aluminum boiler according to claim 1, characterized in that: The reset mechanism (4) comprises: A plurality of limiting sleeves (401) are evenly distributed and fixedly connected to the inner side wall of the housing (1), and the other end of the push-pull rod (14) connected to the elastic balloon (2) is slidably connected to the inside of the limiting sleeve (401); A baffle (402), wherein the baffle (402) is fixedly connected to an end of the push-pull rod (14) away from the elastic balloon (2); A compression spring (403), wherein the compression spring (403) is sleeved on a side of the push-pull rod (14) away from the elastic balloon (2), and the compression spring (403) is located on a side of the blocking piece (402) close to the limiting sleeve (401).

3. A low-nitrogen cast aluminum boiler condensate return device according to claim 1, characterized in that: The driving mechanism (5) comprises: A mounting plate (501), the mounting plate (501) being fixedly connected to the rear side of the exterior of the housing (1), the mounting plate (501) being located at the lower side of the exterior of the communicating hole (12); A driving motor (502), wherein the driving motor (502) is fixedly connected to the upper side of the mounting plate (501); The driving gear (503) is fixedly connected to the rotating shaft at the upper end of the driving motor (502), and the driving gear (503) meshes with the teeth on the outside of the toothed ring (301) through the inside of the communication hole (12).

4. A low-nitrogen cast aluminum boiler condensate return device according to claim 1, characterized in that: The flow rate monitoring assembly (6) includes: A first flowmeter (601), which is arranged on the water inlet pipe (10); A second flowmeter (602), which is arranged on the water inlet pipe (10), and the first flowmeter (601) and the second flowmeter (602) are respectively arranged before and after the Y-shaped filter (11); A third flowmeter (603), which is arranged on the water outlet pipe (9).

5. The condensate return device for a low-nitrogen cast aluminum boiler according to claim 1, characterized in that: The one-way conveying assembly (7) includes: A sleeve (701), which is embedded inside the water delivery pipe (13); A first snap ring (702), which is arranged on the lower side inside the sleeve (701); A second snap ring (703), which is arranged on the upper side inside the sleeve (701); A valve ball (704), which is arranged inside the sleeve (701), and the valve ball (704) is located between the first snap ring (702) and the second snap ring (703).

6. The condensate return device for a low-nitrogen cast aluminum boiler according to claim 5, characterized in that: On both sides of the front and back of the lower end of the outer shell (1), fixed foot supports (15) are fixedly connected, and a number of uniformly distributed water passing holes (16) are formed on the upper side of the outside of the second snap ring (703).

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