Vacuum ejector for steam condensate water system

Abstract

A vacuum ejector for a steam condensate water system relates to the field of vacuum ejectors and comprises an ejector main pipe, a water outlet, a water inlet and an air inlet, an exhaust head is connected to an opening at the right end of the air inlet, a flow dividing cavity is formed in the top of an inner cavity of the exhaust head, and four sliding plates are distributed on the edge of the left end of an outer ring sleeve at equal intervals; according to the utility model, through the design at the air outlet, airflow sprayed out from the exhaust head is partially shunted, and the shunted air is sprayed out from the upper part and then converged into the main flow channel in the middle through the conical cylinder part, so that the air flow in the middle of the main flow channel is uniformly distributed, and the air flow in the middle of the main flow channel is uniformly distributed. Therefore, the separated air flow is mixed into the condensate water from the upper side, the mixing effect of the air flow and the condensate water is greatly improved, the speed of spraying the condensate water out of the water outlet is higher, the drainage efficiency is further improved, and smooth water return of the low-temperature section drying cylinder is guaranteed.

Description

Technical Field

[0001] The utility model relates to the field of vacuum ejectors, in particular to a vacuum ejector for a steam condensate system. Background Art

[0002] A vacuum ejector is a device that uses a high-speed, high-energy flow (liquid flow, air flow or other material flow) to eject another low-speed, low-energy flow. The jet enters the mixing chamber through a convergent nozzle, surrounded by the ejected flow.

[0003] In the steam condensate system, the ejector is mainly used to drain the condensate. When the traditional vacuum ejector is draining, the mixing between the air outlet and the drainage water is uneven, which leads to a decrease in the water outlet speed, thus greatly reducing the drainage efficiency and easily causing the condensate to return unsmoothly. Utility Model Content

[0004] The purpose of the utility model is to provide a vacuum ejector for a steam condensate system to solve the problems raised in the above background technology.

[0005] The utility model solves the technical problem by adopting the following technical solutions:

[0006] A vacuum ejector for a steam condensate system comprises an ejector main pipe, a water outlet, a water inlet and an air inlet, an exhaust head is connected to the opening at the right end of the air inlet, a diverter chamber is arranged at the top of the inner cavity of the exhaust head, the diverter chamber runs through the inclined area on the right side of the exhaust head, an outer ring sleeve is arranged on the right end surface of the exhaust head, four slides are equidistantly arranged on the left end edge of the outer ring sleeve, corresponding slide grooves are equidistantly arranged in the exhaust head, each of the slides is slidably inserted into the corresponding slide groove, and a reset spring is connected between the left end of each slide and the corresponding inner cavity wall of the slide groove, and a water baffle is fixedly arranged on the lower end surface of the outer ring sleeve.

[0007] Preferably, four positioning grooves are evenly distributed in the inner cavity of the exhaust head, and corresponding support parts are arranged on the inner side of the annular surface at the right end of the outer ring sleeve, and each of the support parts is slidably connected in the corresponding positioning groove.

[0008] Preferably, a water outlet is fixedly installed at the right end of the ejector main pipe, and a guide plate is fixedly installed in the inner cavity of the water outlet.

[0009] Preferably, a conical cylinder is provided at the left end of the guide plate, and the opening at the right end of the exhaust head is located in the inner cavity of the conical cylinder.

[0010] Preferably, the water inlet is fixedly mounted on the lower end surface of the ejector main pipe, and the inner cavity opening of the water inlet faces the bottom of the exhaust head.

[0011] Preferably, a threaded portion is provided at the left end of the exhaust head, and the threaded portion is fixedly connected to the air inlet.

[0012] The advantages and positive effects of the utility model are:

[0013] The utility model is designed at the air outlet so that after the condensed water is introduced, the outer ring sleeve will open the diversion cavity to expose it, thereby partially diverting the airflow ejected from the exhaust head, and the diverted gas is ejected from the upper position, and then merged into the main channel in the middle through the tapered cylinder, so that the diverted airflow is mixed into the condensed water from the upper side, which greatly improves the mixing effect of the airflow and the condensed water, makes the mixing more uniform, and greatly improves the mixing efficiency, so that the condensed water can be ejected from the water outlet at a faster speed, further speeds up the drainage efficiency, and ensures smooth water return to the drying cylinder in the low-temperature section. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0015] Figure 1 This is a schematic diagram of the main structure of a vacuum ejector for a steam condensate system according to the utility model;

[0016] Figure 2 For this utility model Figure 1 A schematic diagram of the partially enlarged structure at center A;

[0017] Figure 3 This is a schematic diagram of the structure of an exhaust head in a vacuum ejector for a steam condensate system of the utility model;

[0018] Figure 4 This is a schematic diagram of the exhaust head and outer ring structure of a vacuum ejector for a steam condensate system of the utility model;

[0019] Figure 5 This is a schematic diagram of the structure expansion from another perspective of the exhaust head and outer ring sleeve in the vacuum ejector for a steam condensate system of the utility model.

[0020] The symbols in the accompanying drawings are described as follows: ejector main pipe 10; guide plate 11; water outlet 12; conical cylinder 13; water inlet 14; air inlet 15; exhaust head 16; slide 17; slide plate 18; diversion cavity 19; threaded portion 20; outer ring sleeve 21; support strip portion 22; water baffle 23; positioning groove 24. DETAILED DESCRIPTION

[0021] Now the utility model is further described in detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the utility model in a schematic manner, and therefore only show the components related to the utility model.

[0022] Combine the following Figure 1-5 The utility model is described in detail. For the convenience of description, the directions mentioned below are defined as follows: the up, down, left, right, front and back directions mentioned below are the same as Figure 1 The view direction is consistent in front, back, left, right, up and down. Figure 1 The direction shown is consistent with the front, back, left, right, up and down directions of the device of the utility model when viewed from the front.

[0023] In the present invention, unless otherwise clearly defined and specified, the terms "installed", "connected", "connected", "fixed" and the like 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, a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of at least two elements or the interaction relationship between at least two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] The following is a further description of the embodiments of the present invention in conjunction with the accompanying drawings:

[0025] See also Figure 1-5 The utility model provides an embodiment: a vacuum ejector for a steam condensate system, comprising an ejector main pipe 10, an air inlet 15 is connected to the left end of the ejector main pipe 10, a water outlet 12 is fixedly connected to the right end, and a water inlet 14 is connected to the lower end, and the air inlet 15 extends into the inner cavity of the ejector main pipe 10, and an exhaust head 16 is fixedly connected to the air inlet 15 through a threaded portion 20 at the left end, a diverter cavity 19 is arranged on the top of the inner cavity of the exhaust head 16, and the diverter cavity 19 passes through the inclined surface area on the right side of the exhaust head 16, and a An outer ring sleeve 21, four slide plates 18 are evenly spaced on the left edge of the outer ring sleeve 21, corresponding slide grooves 17 are evenly spaced in the exhaust head 16, each of the slide plates 18 is slidably inserted into the corresponding slide groove 17, and a return spring is connected between the left end of each slide plate 18 and the inner cavity wall of the corresponding slide groove 17, a water baffle 23 is fixedly provided on the lower end surface of the outer ring sleeve 21, and a guide plate 11 is fixedly installed in the water outlet 12, a conical cylinder 13 is provided on the left end of the guide plate 11, and the right end opening of the exhaust head 16 is located in the inner cavity of the conical cylinder 13;

[0026] The air outlet pipe of the air pump is connected to the air inlet 15, and the condensate pipe in the steam condensate system is connected to the water inlet 14. At this time, the high-speed airflow is ejected from the air inlet 15 through the inner cavity of the exhaust head 16 and discharged from the water outlet 12, so that negative pressure is formed in the inner cavity of the conical cylinder 13, and the condensate is sucked from the water inlet 14 into the inner cavity of the conical cylinder 13 by the pressure difference. Once the condensate enters, it will impact the water baffle 23 to slide to the right, so that the outer ring sleeve 2 1 moves to the right, the diversion chamber 19 on the upper side of the exhaust head 16 opens, and then part of the airflow flows out through the diversion chamber 19. Since the outlet of the diversion chamber 19 faces upward, the airflow is ejected upward along the conical cylinder 13, and then merged into the water outlet 12 through the guide plate 11, and part of the airflow is merged into the main channel from the upper side through the diversion, so that the mixing between the airflow and the condensed water is more sufficient and efficient, and the guide plate 11 itself can mix the airflow with the water flow, and finally discharged through the water outlet 12.

[0027] In addition, in one embodiment, different from the above-mentioned embodiment, four positioning grooves 24 are evenly distributed in the inner cavity of the exhaust head 16 mentioned above, and corresponding support parts 22 are provided on the inner side of the annular surface at the right end of the outer ring sleeve 21, and each of the support parts 22 is slidably connected in the corresponding positioning groove 24, thereby further reinforcing the outer ring sleeve 21, so that the stability of the outer ring sleeve 21 is greatly improved, and the service life is also improved.

[0028] In a specific implementation, when the ejector is installed in the condensate water system, the air outlet pipe of the air pump is connected to the air inlet 15, and the condensate water pipe and the water inlet 14 are connected to each other. At this time, a high-speed airflow is ejected from the air inlet 15 through the inner cavity of the exhaust head 16 and discharged from the water outlet 12, thereby forming a negative pressure in the inner cavity of the conical cylinder 13, and the condensate water is sucked from the water inlet 14 into the inner cavity of the conical cylinder 13 by the pressure difference. Once the condensate water enters, it will impact the water baffle 23 to slide to the right, thereby causing the The outer ring sleeve 21 moves to the right, and the diverter chamber 19 on the upper side of the exhaust head 16 opens, allowing part of the airflow to flow out through the diverter chamber 19. Since the outlet of the diverter chamber 19 faces upward, the airflow is ejected upward along the conical cylinder 13, and then merged into the water outlet 12 through the guide plate 11. Part of the airflow is diverted and then merged into the main channel from the upper side, so that the mixing between the airflow and the condensed water is more sufficient and efficient. The guide plate 11 itself can mix the airflow and the water flow, and finally they are discharged through the water outlet 12.

[0029] To summarize, the ejector is designed at the air outlet so that after the condensed water is introduced, the outer ring sleeve 21 will open, exposing the diversion chamber 19, thereby partially diverting the airflow ejected from the exhaust head 16, and the diverted gas is ejected from the upper position, and then merged into the main channel in the middle through the conical cylinder 13, thereby mixing the diverted airflow into the condensed water from the upper side, greatly improving the mixing effect of the airflow and the condensed water, making the mixing more uniform, and at the same time greatly improving the mixing efficiency, so that the condensed water is ejected from the water outlet 12 at a faster speed, further accelerating the drainage efficiency.

[0030] It should be emphasized that the embodiments described in the present invention are illustrative rather than restrictive. Therefore, the present invention is not limited to the embodiments described in the specific implementation manner. Any other implementation manners derived by those skilled in the art based on the technical solution of the present invention also fall within the scope of protection of the present invention.

Claims

1. A vacuum ejector for a steam condensate system, comprising an ejector main pipe (10), a water outlet (12), a water inlet (14) and an air inlet (15), characterized in that: The right end opening of the air inlet (15) is connected to an exhaust head (16), and a diverter chamber (19) is arranged at the top of the inner cavity of the exhaust head (16). The diverter chamber (19) runs through the inclined area on the right side of the exhaust head (16). An outer ring sleeve (21) is arranged on the right end surface of the exhaust head (16). No less than four slide plates (18) are evenly distributed on the left end edge of the outer ring sleeve (21). Corresponding slide grooves (17) are evenly distributed in the exhaust head (16). Each of the slide plates (18) is slidably inserted into the corresponding slide groove (17), and a return spring is connected between the left end of each slide plate (18) and the inner cavity wall of the corresponding slide groove (17). A water retaining plate (23) is fixedly arranged on the lower end surface of the outer ring sleeve (21).

2. A vacuum ejector for a steam condensate system according to claim 1, characterized in that: No less than four positioning grooves (24) are evenly distributed in the inner cavity of the exhaust head (16), and corresponding support strips (22) are provided on the inner side of the annular surface at the right end of the outer ring sleeve (21), and each of the support strips (22) is slidably connected in the corresponding positioning groove (24).

3. A vacuum ejector for a steam condensate system according to claim 2, characterized in that: A water outlet (12) is fixedly installed at the right end of the ejector main pipe (10), and a guide plate (11) is fixedly installed in the inner cavity of the water outlet (12).

4. A vacuum ejector for a steam condensate system according to claim 3, characterized in that: The left end of the guide plate (11) is provided with a conical cylinder (13), and the right end opening of the exhaust head (16) is located in the inner cavity of the conical cylinder (13).

5. The vacuum ejector for a steam condensate system according to claim 1, characterized in that: The water inlet (14) is fixedly mounted on the lower end surface of the ejector main pipe (10), and the inner cavity opening of the water inlet (14) faces the bottom of the exhaust head (16).

6. The vacuum ejector for a steam condensate system according to claim 1, characterized in that: A threaded portion (20) is provided at the left end of the exhaust head (16), and the threaded portion (20) is fixedly connected to the air inlet (15).

Images